CN105866388A - Measurement apparatus used for researching characteristic of oil-containing refrigerant, and measurement method thereof - Google Patents

Abstract

The invention discloses a measurement apparatus used for researching the characteristic of an oil-containing refrigerant, and a measurement method thereof. The apparatus comprises: a measurement and control module provided with a device to be measured, wherein the measurement and control module is used for measuring the condition parameters of the apparatus in a running state when the apparatus starts, the parameters of a refrigerant, the parameters of a heat transfer medium and electrical parameters and adjusting the condition parameters; a data acquisition module used for acquiring the condition parameters the parameters of the refrigerant, the parameters of the heat transfer medium and the electrical parameters; and a control module used for judging the stability of the condition parameters acquired by the data acquisition module and calculating the oil content of the oil-containing refrigerant and the performances of the oil-containing refrigerant going through the device to be measured according to the condition parameters, the parameters of the refrigerant, the parameters of the heat transfer medium and the electrical parameters when a judging result shows that the condition parameters are in a stable state in order to accurately test and analyze the oil content of the refrigerant and the performances of the device to be measured and provide accurate data for development of relevant refrigeration devices and energy efficiency promotion researches. The test efficiency of the apparatus is high.

Description

For studying measurement apparatus and the measuring method thereof of refrigerating agent containing oil characteristic

Technical field

The present invention relates to refrigeration technology field, particularly to a kind of measurement apparatus for studying refrigerating agent containing oil characteristic with And the measuring method of a kind of measurement apparatus for studying refrigerating agent containing oil characteristic.

Background technology

The Energy Efficiency Standard that the refrigeration plant executed such as convertible frequency air-conditioner, Teat pump boiler is new, energy efficiency indexes General Promotion.With Time, the introducing of annual energy resource consumption efficiency APF evaluation index, the requirement to Performance Evaluation will be more comprehensive.In this policy, regulation Under background, the efficiency upgrading of refrigeration plant is extremely urgent.

Summary of the invention

It is contemplated that one of technical problem solved the most to a certain extent in correlation technique.To this end, the present invention One purpose is to propose a kind of measurement apparatus for studying refrigerating agent containing oil characteristic, and refrigerating agent containing oil can be passed through by this device The performance of device under test is tested and is analyzed, and the efficiency upgrading research for associated refrigeration equipment offers precise data.

Further object is that the measurement proposing a kind of measurement apparatus for studying refrigerating agent containing oil characteristic Method.

For reaching above-mentioned purpose, one aspect of the present invention embodiment proposes a kind of survey for studying refrigerating agent containing oil characteristic Amount device, including: the control module of device under test is installed, is used for when described device starts under described plant running state Duty parameter, cold-producing medium parameter, heat transferring medium parameter and electrical quantity measure, and described duty parameter is adjusted； Data acquisition module, is used for gathering described duty parameter, described cold-producing medium parameter, described heat transferring medium parameter and described electricity ginseng Number；Control module, for described data collecting module collected to the stability of described duty parameter judge, and sentencing When disconnected described duty parameter is in steady statue, according to described duty parameter, described cold-producing medium parameter, described heat transferring medium parameter The oil content of described refrigerating agent containing oil and described refrigerating agent containing oil is calculated by property during described device under test with described electrical quantity Energy.

The measurement apparatus for studying refrigerating agent containing oil characteristic proposed according to the present invention, by control module to data acquisition The stability of the duty parameter that collection module collects judges, and when judging that duty parameter is in steady statue, according to work Condition parameter, cold-producing medium parameter, heat transferring medium parameter and the oil content of electrical quantity calculating refrigerating agent containing oil and refrigerating agent containing oil pass through Performance during device under test such that it is able to accurately test and pass through to treat with the oil content and refrigerating agent containing oil analyzing refrigerating agent containing oil Surveying performance during device, exploitation and efficiency upgrading research for associated refrigeration equipment offer precise data, and this device is surveyed Trying in hgher efficiency, range of application is bigger.

According to one embodiment of present invention, it is described condensing heat exchanger to be measured when described device under test or evaporation to be measured is changed During hot device, described refrigerating agent containing oil by performance during described device under test include the heat exchange amount of described device under test, described in treat Survey pressure drop and the cold-producing medium mass dryness fraction of device；When described device under test is described first throttle mechanism to be measured or the second throttling machine to be measured During structure, described refrigerating agent containing oil includes the discharge coefficient of described device under test by performance during described device under test.

According to one embodiment of present invention, described control module include frequency conversion refrigeration part, condensing heat-exchange observing and controlling parts, Oil content observing and controlling parts, first throttle mechanism observing and controlling parts, second throttle body observing and controlling parts and evaporation and heat-exchange observing and controlling parts, its In, described frequency conversion refrigeration part for for described condensing heat-exchange observing and controlling parts, described first throttle mechanism observing and controlling parts, described the Two throttle mechanism observing and controlling parts and described evaporation and heat-exchange observing and controlling parts provide the adjustable refrigerating agent containing oil of oil content；Described condensation is changed The entrance of hot observing and controlling parts is connected with the outlet of described frequency conversion refrigeration part, and described condensing heat-exchange observing and controlling parts are for containing described Oil cold-producing medium is by duty parameter and heat transferring medium to described condensing heat-exchange observing and controlling parts during described condensing heat-exchange observing and controlling parts Parameter measures, and the duty parameter of described condensing heat-exchange observing and controlling parts is adjusted such that described condensing heat-exchange observing and controlling portion The duty parameter of part is in steady statue；The entrance of described oil content observing and controlling parts and the outlet of described condensing heat-exchange observing and controlling parts Being connected, the outlet of described oil content observing and controlling parts is connected with the entrance of described first throttle mechanism observing and controlling parts, described oil content Observing and controlling parts are used for the work when described refrigerating agent containing oil is by described oil content observing and controlling parts to described oil content observing and controlling parts Condition parameter and cold-producing medium parameter measure；The entrance of described first throttle mechanism observing and controlling parts and described oil content observing and controlling parts Outlet be connected, described first throttle mechanism observing and controlling parts for described refrigerating agent containing oil by described first throttle mechanism survey During control parts, duty parameter and cold-producing medium parameter to described first throttle mechanism observing and controlling parts measure, and to described first The duty parameter of throttle mechanism observing and controlling parts is adjusted such that the duty parameter of described first throttle mechanism observing and controlling parts is in Steady statue；The entrance of described second throttle body observing and controlling parts respectively with outlet and the described condensation of described frequency conversion refrigeration part The central exit of heat exchange observing and controlling parts is connected, and described second throttle body observing and controlling parts are in described second throttle body observing and controlling Parts cold-producing medium is by duty parameter to described second throttle body observing and controlling parts during described second throttle body observing and controlling parts Measure with cold-producing medium parameter, and the duty parameter of described second throttle body observing and controlling parts is adjusted such that described The duty parameter of two throttle mechanism observing and controlling parts is in steady statue；First entrance and second of described evaporation and heat-exchange observing and controlling parts Entrance is right with the outlet of the outlet of described first throttle mechanism observing and controlling parts and described second throttle body observing and controlling parts respectively Should be connected, the outlet of described evaporation and heat-exchange observing and controlling parts is connected with described frequency conversion refrigeration part entrance, described evaporation and heat-exchange observing and controlling The operating mode of described evaporation and heat-exchange observing and controlling parts is joined by parts when described refrigerating agent containing oil is by described evaporation and heat-exchange observing and controlling parts Number and electrical quantity measure, and the duty parameter of described evaporation and heat-exchange observing and controlling parts is adjusted such that described evaporation and heat-exchange The duty parameter of observing and controlling parts is in steady statue.

According to one embodiment of present invention, described condensing heat-exchange observing and controlling parts include: the first heat-exchanging component to be measured, described The entrance of the first heat-exchanging component to be measured includes as the entrance of described condensing heat-exchange observing and controlling parts, described first heat-exchanging component to be measured The first stop valve of being sequentially connected in series, the first connectivity port to be measured, the second stop valve and the first stop valve connected with described, The first bypass cutoff valve that one connectivity port to be measured, the second stop valve are connected in parallel, described first connectivity port to be measured is for even Connect described condensing heat exchanger to be measured；Auxiliary condensing heat-exchange assembly, the entrance of described auxiliary condensing heat-exchange assembly is treated with described first The outlet surveying heat-exchanging component is connected, and the outlet of described auxiliary condensing heat-exchange assembly is as the centre of described condensing heat-exchange observing and controlling parts Outlet, described auxiliary condensing heat-exchange assembly includes the first inner tube by described refrigerating agent containing oil and with by the of heat transferring medium Sleeve；Supercool control assembly, the entrance of described supercool control assembly is connected with the outlet of described auxiliary condensing heat-exchange assembly, institute Stating the outlet outlet as described condensing heat-exchange observing and controlling parts of supercool control assembly, described supercool control assembly includes by institute State the second inner tube of refrigerating agent containing oil and by the second sleeve pipe of described heat transferring medium.

According to one embodiment of present invention, described duty parameter includes the refrigeration of described first heat-exchanging component entrance to be measured Agent temperature, the refrigerant pressure of described first heat-exchanging component entrance to be measured, the cold-producing medium of described first heat-exchanging component to be measured outlet Temperature and the refrigerant pressure of described first heat-exchanging component to be measured outlet, described heat transferring medium parameter includes flowing through described first set The specific heat capacity of the heat transferring medium of pipe, density and volume flow, the medium inlet temperature of described first sleeve, described first sleeve Medium outlet temperature, flow through the specific heat capacity of heat transferring medium, density and the volume flow of described second sleeve pipe, described second sleeve pipe Medium inlet temperature and the medium outlet temperature of described second sleeve pipe, wherein, described condensing heat-exchange observing and controlling parts also include: first Temperature meter, for measuring the refrigerant temperature of described first heat-exchanging component entrance to be measured；First pressometer, is used for surveying Measure the refrigerant pressure of described first heat-exchanging component entrance to be measured；Second temperature meter, is used for measuring described first and to be measured changes The refrigerant temperature of hot module outlet；Second pressometer, for measuring the refrigeration of described first heat-exchanging component to be measured outlet Agent pressure；First flow measuring device, for measuring the volume flow of the heat transferring medium flowing through described first sleeve；4th temperature is surveyed Measuring device, for measuring the medium inlet temperature of described first sleeve；5th temperature meter, for measuring described first sleeve Medium outlet temperature；Second flow measuring device, for measuring the volume flow of the heat transferring medium flowing through described second sleeve pipe；6th Temperature meter, for measuring the medium inlet temperature of described second sleeve pipe；7th temperature meter, is used for measuring described second The medium outlet temperature of sleeve pipe.

According to one embodiment of present invention, described cold-producing medium parameter includes the refrigeration flowing through described oil content observing and controlling parts The temperature of agent and density, described oil content observing and controlling parts include: the 12nd temperature meter, flow through described oil content for measurement The refrigerant temperature of observing and controlling parts；First dasymeter, flows through the cold-producing medium of described oil content observing and controlling parts for measurement Density.

According to one embodiment of present invention, described first throttle mechanism observing and controlling parts include the first throttle mechanism group to be measured Part and the first auxiliary throttle mechanism assembly being connected with described first throttle mechanism modules in parallel to be measured, wherein, first is to be measured Throttle mechanism assembly includes the 3rd stop valve, the second connectivity port to be measured and the 4th stop valve being sequentially connected in series, and described second treats Survey connectivity port to be used for connecting described first throttle mechanism to be measured；Described first auxiliary throttle mechanism assembly includes being sequentially connected in series 5th stop valve, the first auxiliary throttle mechanism and the 6th stop valve.

According to one embodiment of present invention, described duty parameter includes described first throttle mechanism observing and controlling component entry Refrigerant temperature, the refrigerant pressure of described first throttle mechanism observing and controlling component entry flow through observing and controlling portion of described first throttle mechanism The mass flow of the cold-producing medium of part and the refrigerant pressure of described first throttle mechanism observing and controlling knockdown export, described cold-producing medium parameter Including the density of the cold-producing medium flowing through described first throttle mechanism observing and controlling parts, wherein, described first throttle mechanism observing and controlling parts Also include: the 3rd temperature meter, for measuring the refrigerant temperature of described first throttle mechanism observing and controlling component entry；3rd pressure Force measurement device, for measuring the refrigerant pressure of described first throttle mechanism observing and controlling component entry；Second dasymeter, is used for Measure the density of the cold-producing medium flowing through described first throttle mechanism observing and controlling parts；3rd flow measuring probe, flows through institute for measurement State the mass flow of the cold-producing medium of first throttle mechanism observing and controlling parts；4th pressometer, is used for measuring described first throttle The refrigerant pressure of mechanism's observing and controlling knockdown export.

Wherein, described first dasymeter and the second dasymeter are same dasymeter, described 3rd temperature Degree measuring device and described 12nd temperature meter can be same temperature meter.

According to one embodiment of present invention, described second throttle body observing and controlling parts include: the second throttle mechanism to be measured Assembly, described second throttle mechanism assembly to be measured includes the 7th stop valve, the 3rd connectivity port to be measured and the 8th being sequentially connected in series Stop valve, described 3rd connectivity port to be measured is used for connecting described second throttle mechanism to be measured；With described second throttling machine to be measured The second auxiliary throttle mechanism assembly that structure modules in parallel connects, described second auxiliary throttle mechanism assembly and described second in parallel One end of throttle mechanism assembly to be measured is as the entrance of described second throttle body observing and controlling parts, described second auxiliary joint in parallel Flow the other end the going out as described second throttle body observing and controlling parts of mechanism assembly and described second throttle mechanism assembly to be measured Mouthful, described second auxiliary throttle mechanism assembly includes the 9th stop valve, the second auxiliary throttle mechanism and the tenth section being sequentially connected in series Only valve, wherein, the entrance of described second throttle body observing and controlling parts is by the outlet of the 11st stop valve with frequency conversion refrigeration part Being connected, the entrance of described second throttle body observing and controlling parts is also by the 12nd stop valve and described auxiliary condensing heat-exchange assembly Outlet is connected.

According to one embodiment of present invention, described duty parameter includes flowing through described first throttle mechanism observing and controlling parts The mass flow of cold-producing medium, the refrigerant temperature of described second throttle body observing and controlling component entry, described second throttle body are surveyed The refrigerant pressure of control component entry and the refrigerant pressure of described second throttle body observing and controlling knockdown export, described cold-producing medium Parameter includes the density flowing through the cold-producing medium of described second throttle body observing and controlling parts, wherein, described second throttle body observing and controlling Parts also include: triple density measuring device, for measuring the density of the cold-producing medium flowing through described second throttle body observing and controlling parts； 4th flow measuring probe, for measuring the mass flow of the cold-producing medium flowing through described second throttle body observing and controlling parts；8th temperature Degree measuring device, for measuring the refrigerant temperature of described second throttle body observing and controlling component entry；8th pressometer, is used for Measure the refrigerant pressure of described second throttle body observing and controlling component entry；5th pressometer, is used for measuring described second The refrigerant pressure of throttle mechanism observing and controlling knockdown export.

According to one embodiment of present invention, described evaporation and heat-exchange observing and controlling parts include: air and liquid mixer, and described gas-liquid is mixed First entrance of clutch is connected with the outlet of described first throttle mechanism observing and controlling parts, the second entrance of described air and liquid mixer with The outlet of described second throttle body observing and controlling parts is connected；Second heat-exchanging component to be measured, entering of described second heat-exchanging component to be measured Mouthful it is connected with the outlet of described air and liquid mixer, the 13rd stop valve that described second heat-exchanging component to be measured includes being sequentially connected in series, 4th connectivity port to be measured, the 14th stop valve and the 13rd stop valve connected with described, the 4th connectivity port to be measured, The second bypass cutoff valve that 14 stop valves are connected in parallel, described 4th connectivity port to be measured is used for connecting described evaporation to be measured and changes Hot device；The outlet of assisted evaporative heat-exchanging component, the entrance of described assisted evaporative heat-exchanging component and described second heat-exchanging component to be measured Being connected, the outlet of described assisted evaporative heat-exchanging component is changed as the outlet of described evaporation and heat-exchange observing and controlling parts, the condensation of described auxiliary Hot assembly includes the 3rd inner tube by described refrigerating agent containing oil and heats the refrigerating agent containing oil in described 3rd inner tube Primary heater.

According to one embodiment of present invention, described duty parameter include described 3rd inner tube outlet refrigerant temperature, The refrigerant pressure of described 3rd inner tube outlet, the heating power of described primary heater, described second heat-exchanging component to be measured go out The refrigerant temperature of mouth, the refrigerant pressure of described second heat-exchanging component to be measured outlet, described second heat-exchanging component entrance to be measured Refrigerant temperature and the refrigerant pressure of described second heat-exchanging component entrance to be measured, described electrical quantity include described first heating The heating power of device, wherein, described evaporation and heat-exchange observing and controlling parts also include: the 9th temperature meter, are used for measuring the described 3rd The refrigerant temperature of inner tube outlet；9th pressometer, for measuring the refrigerant pressure of described 3rd inner tube outlet；Power Measuring device, for measuring the heating power of described primary heater；Tenth temperature meter, is used for measuring described second and to be measured changes The refrigerant temperature of hot module outlet；Tenth pressometer, for measuring the refrigeration of described second heat-exchanging component to be measured outlet Agent pressure；11st temperature meter, for measuring the refrigerant temperature of described second heat-exchanging component entrance to be measured；11st pressure Force measurement device, for measuring the refrigerant pressure of described second heat-exchanging component entrance to be measured.

According to one embodiment of present invention, described control module calculates the oil-containing of described cold-producing medium according to below equation Rate:

X=a ρ₁+b·T³+c·T²+d·T+e

Wherein, X is the oil content of described refrigerating agent containing oil, ρ₁For flowing through the close of the cold-producing medium of described oil content observing and controlling parts Degree, T is the refrigerant temperature of described oil content observing and controlling component entry, and a, b, c, d, e are constant and according to described coolant and freezing The combination variety of machine oil determines.

According to one embodiment of present invention, by refrigerant temperature and the system of described first throttle mechanism observing and controlling component entry Refrigerant pressure is respectively as the refrigerant temperature of described second inner tube outlet and refrigerant pressure, when described condensing heat exchanger to be measured When participating in kind of refrigeration cycle, described evaporating heat exchanger to be measured, described first throttle mechanism to be measured and described second throttle mechanism to be measured And described second auxiliary throttle mechanism assembly be not involved in kind of refrigeration cycle, described control module according to below equation calculate described in contain Oil cold-producing medium is by heat exchange amount during described condensing heat exchanger to be measured, pressure drop and cold-producing medium mass dryness fraction:

Q₁=M₁[(1-X)(h_SO-h_CI1)+C₀X(T_SO-T_CI1)]-C[m₁(T₂-T₁)+m₂(T₄-T₃)]；

Δ P1=P_CO1-P_CI1；

χ₁=f₃(h_CO1,T_CO1,P_CO1), wherein,

Wherein, Q₁For the described condensing heat exchanger to be measured heat exchange amount when refrigerating agent containing oil passes through, Δ P1 is described to be measured Condensing heat exchanger refrigerating agent containing oil by time pressure drop, χ₁For the cold-producing medium mass dryness fraction of described condensing heat exchanger to be measured outlet, M₁For Flowing through the mass flow of the cold-producing medium of described first throttle mechanism observing and controlling parts, X is the oil content of described refrigerating agent containing oil, h_SOFor The cold-producing medium of described second inner tube outlet is than enthalpy, h_SOWith the characteristic of cold-producing medium and the cold-producing medium temperature of described second inner tube outlet Degree T_SO, the refrigerant pressure P of described second inner tube outlet_SORelevant, h_CI1Refrigeration for described first heat-exchanging component entrance to be measured Agent is than enthalpy, h_CI1With the characteristic of cold-producing medium and refrigerant temperature T of described first heat-exchanging component entrance to be measured_CI1, described The refrigerant pressure P of one heat-exchanging component entrance to be measured_CI1Relevant, C₀For the specific heat capacity of refrigerator oil, C is the specific heat of heat transferring medium Hold, m₁For flowing through the volume flow of the heat transferring medium of described first sleeve, T₁For the medium inlet temperature of described first sleeve, T₂ For the medium outlet temperature of described first sleeve, m₂For flowing through the volume flow of the heat transferring medium of described second sleeve pipe, T₃For described The medium inlet temperature of the second sleeve pipe, T₄For the medium outlet temperature of described second sleeve pipe, h_CO1For described first heat exchange group to be measured The cold-producing medium of part outlet is than enthalpy, h_CO1With the characteristic of cold-producing medium and the cold-producing medium temperature of described first heat-exchanging component to be measured outlet Degree T_CO1, the refrigerant pressure P of described first heat-exchanging component to be measured outlet_CO1Relevant.

According to one embodiment of present invention, when described evaporating heat exchanger to be measured participates in kind of refrigeration cycle, described to be measured cold Solidifying heat exchanger, described first throttle mechanism to be measured and described second throttle mechanism to be measured are not involved in kind of refrigeration cycle, described control mould Tuber calculates described refrigerating agent containing oil by heat exchange amount, pressure drop and cold-producing medium during described evaporating heat exchanger to be measured according to below equation Mass dryness fraction:

Q₂=(M₁+M₂)[(1-X)h_EO2+C₀XT_EO2]-(1-X)(M₁h_TI1+M₂h_TI2)-C₀M₁XT_TI1-C₀M₂XT_TI2-Q₀；

Δ P2=P_EO1-P_EI1；

${\mathrm{\χ}}_2=\frac{(M1h_{TI1}+M2h_{TI2})(1-X)+{\mathrm{XC}}_0(M1T_{TI1}+M2T_{TI2})-(M1+M2)\[(1-X)h_{EIL}+{\mathrm{XC}}_0{T}_{EI}\]}{(h_{EIL}-h_{EIG})(M1+M2)(1-X)};$

Wherein, Q₂For the described evaporating heat exchanger to be measured heat exchange amount when refrigerating agent containing oil passes through, Δ P2 is described to be measured Evaporating heat exchanger refrigerating agent containing oil by time pressure drop, χ₂For the cold-producing medium mass dryness fraction of described evaporative heat exchanger inlet to be measured, M₁For Flow through the mass flow of the cold-producing medium of described first throttle mechanism observing and controlling parts, M₂For flowing through described second throttle body observing and controlling portion The mass flow of the cold-producing medium of part, X is the oil content of described refrigerating agent containing oil, h_EO2Cold-producing medium for described 3rd inner tube outlet Ratio enthalpy, h_EO2With the characteristic of cold-producing medium and refrigerant temperature T of described 3rd inner tube outlet_EO2, described 3rd inner tube outlet Refrigerant pressure P_EO2Relevant, h_TI1For the cold-producing medium of described first throttle mechanism observing and controlling component entry than enthalpy, h_TI1With refrigeration The characteristic of agent and refrigerant temperature T of described first throttle mechanism observing and controlling component entry_TI1, the observing and controlling of described first throttle mechanism The refrigerant pressure P of component entry_TI1Relevant, h_TI2With refrigerant property and described second throttle body observing and controlling component entry Refrigerant temperature T_TI2Refrigerant pressure P with described second throttle body observing and controlling component entry_TI2Relevant, C₀For refrigerator oil Specific heat capacity, Q₀For the heating power of described primary heater, P_EO1Cold-producing medium pressure for described second heat-exchanging component to be measured outlet Power, h_EILFor the described saturated liquid refrigerant of evaporative heat exchanger inlet to be measured than enthalpy, h_EIGDescribed evaporative heat exchanger inlet to be measured Saturated gaseous refrigerant is than enthalpy, h_EILAnd h_EIGAll with refrigerant temperature T of described second heat-exchanging component entrance to be measured_EIRelevant.

According to one embodiment of present invention, when described first throttle mechanism to be measured participates in kind of refrigeration cycle, described to be measured Condensing heat exchanger, evaporating heat exchanger to be measured and described second throttle mechanism to be measured and described first auxiliary throttle mechanism assembly Being not involved in kind of refrigeration cycle with described second auxiliary throttle mechanism assembly, described control module calculates described oil-containing according to below equation Cold-producing medium is by discharge coefficient during the first throttle mechanism to be measured:

$C_{D1}=\frac{M_1}{A_1\sqrt{2{\mathrm{\ρ}}_2(P_{TI1}-P_{TO1})}}$

Wherein, C_D1For described first throttle mechanism to be measured refrigerating agent containing oil by time discharge coefficient, M₁For flowing through State the mass flow of the cold-producing medium of first throttle mechanism observing and controlling parts, A₁For the circulation area of described first throttle mechanism to be measured, ρ₂ For flowing through the density of the cold-producing medium of described first throttle mechanism observing and controlling parts, P_TI1Enter for described first throttle mechanism observing and controlling parts The refrigerant pressure of mouth, P_TO1Refrigerant pressure for described first throttle mechanism observing and controlling knockdown export.

According to one embodiment of present invention, when described second throttle mechanism to be measured participates in kind of refrigeration cycle, described to be measured Condensing heat exchanger, evaporating heat exchanger to be measured and described first throttle mechanism to be measured and described second auxiliary throttle mechanism assembly It is not involved in kind of refrigeration cycle, when described gaseous refrigerant or described gas-liquid two-phase state cold-producing medium are by described second throttle mechanism to be measured Time, described control module calculates described refrigerating agent containing oil by flow system during the second throttle mechanism to be measured according to below equation Number:

$C_{D2}=\frac{M_2}{A_2\sqrt{2{\mathrm{\ρ}}_3(P_{TI2}-P_{TO2})}}$

Wherein, C_D2For described refrigerating agent containing oil by discharge coefficient during the second throttle mechanism to be measured, M₂Described for flowing through The mass flow of the cold-producing medium of second throttle body observing and controlling parts, A₂For the circulation area of described second throttle mechanism to be measured, ρ₃For Flow through the density of the cold-producing medium of described second throttle body observing and controlling parts, P_TI2For described second throttle body observing and controlling component entry Refrigerant pressure, P_TO2Refrigerant pressure for described second throttle body observing and controlling knockdown export.

According to one embodiment of present invention, described frequency conversion refrigeration part includes frequency conversion cooling assembly, separating of oil assembly, confession Line of oils part and and oil-gas mixer, wherein, described control module for after calculating the oil content of described refrigerating agent containing oil, Oil content according to described refrigerating agent containing oil regulates described fuel feeding assembly and supplies the fuel delivery of described oil-gas mixer, so that described The oil content of refrigerating agent containing oil reaches to set oil content.

For reaching above-mentioned purpose, another aspect of the present invention embodiment proposes a kind of for studying refrigerating agent containing oil characteristic The measuring method of measurement apparatus, installs device under test, described method in the measurement apparatus for studying refrigerating agent containing oil characteristic Comprise the following steps: when the described measurement apparatus for studying refrigerating agent containing oil characteristic starts under described plant running state Duty parameter, cold-producing medium parameter, heat transferring medium parameter and electrical quantity measure, and described duty parameter is adjusted； Gather described duty parameter, described cold-producing medium parameter, described heat transferring medium parameter and described electrical quantity；To described data acquisition module The stability of the described duty parameter that block collects judges, and when judging that described duty parameter is in steady statue, root Described refrigerating agent containing oil is calculated according to described duty parameter, described cold-producing medium parameter, described heat transferring medium parameter and described electrical quantity Oil content and described refrigerating agent containing oil by performance during described device under test.

According to the measuring method of the measurement apparatus for studying refrigerating agent containing oil characteristic that the present invention proposes, to data acquisition The stability of the duty parameter that module collects judges, and when judging that duty parameter is in steady statue, according to operating mode Parameter, cold-producing medium parameter, heat transferring medium parameter and the oil content of electrical quantity calculating refrigerating agent containing oil and refrigerating agent containing oil are by treating Survey performance during device such that it is able to accurately test and pass through to be measured with the oil content and refrigerating agent containing oil analyzing refrigerating agent containing oil Performance during device, exploitation and efficiency upgrading research for associated refrigeration equipment offer precise data, and the method test In hgher efficiency, range of application is bigger.

According to one embodiment of present invention, described device under test include condensing heat exchanger to be measured, evaporating heat exchanger to be measured, First throttle mechanism to be measured and the second throttle mechanism to be measured, wherein, when described device under test be described condensing heat exchanger to be measured or During evaporating heat exchanger to be measured, described refrigerating agent containing oil includes the heat exchange of described device under test by performance during described device under test Amount, the pressure drop of described device under test and cold-producing medium mass dryness fraction；When described device under test is described first throttling to be measured or second to be measured During throttle mechanism, described refrigerating agent containing oil includes the discharge coefficient of described device under test by performance during described device under test.

According to one embodiment of present invention, described control module include frequency conversion refrigeration part, condensing heat-exchange observing and controlling parts, Oil content observing and controlling parts, first throttle mechanism observing and controlling parts, second throttle body observing and controlling parts and evaporation and heat-exchange observing and controlling parts, its In, described duty parameter includes the refrigerant temperature of the first heat-exchanging component entrance to be measured, institute in described condensing heat-exchange observing and controlling parts State the refrigerant pressure of the first heat-exchanging component entrance to be measured, the refrigerant temperature and described of described first heat-exchanging component to be measured outlet The refrigerant pressure of the first heat-exchanging component to be measured outlet；Described heat transferring medium parameter includes flowing through described condensing heat-exchange observing and controlling parts The specific heat capacity of heat transferring medium, density and the volume flow of first sleeve of middle auxiliary condensing heat-exchange assembly, described first sleeve Medium inlet temperature, the medium outlet temperature of described first sleeve, flow through supercool control group in described condensing heat-exchange observing and controlling parts The specific heat capacity of heat transferring medium, density and the volume flow of the second sleeve pipe of part, the medium inlet temperature of described second sleeve pipe and institute State the medium outlet temperature of the second sleeve pipe.

According to one embodiment of present invention, described cold-producing medium parameter includes the refrigeration flowing through described oil content observing and controlling parts The temperature of agent and density.

According to one embodiment of present invention, described duty parameter includes described first throttle mechanism observing and controlling component entry Refrigerant pressure flows through mass flow and the survey of described first throttle mechanism of the cold-producing medium of described first throttle mechanism observing and controlling parts The refrigerant pressure of control knockdown export, described cold-producing medium parameter includes the cold-producing medium flowing through described first throttle mechanism observing and controlling parts Density.

According to one embodiment of present invention, described duty parameter also includes flowing through described second throttle body observing and controlling parts The mass flow of cold-producing medium, the refrigerant temperature of described second throttle body observing and controlling component entry, described second throttle body The refrigerant pressure of observing and controlling component entry and the refrigerant pressure of described second throttle body observing and controlling knockdown export；Described refrigeration Agent parameter also includes the density flowing through the cold-producing medium of described second throttle body observing and controlling parts.

According to one embodiment of present invention, during described duty parameter also includes described evaporation and heat-exchange observing and controlling parts, auxiliary is steamed Send out the refrigerant temperature of the 3rd inner tube outlet of heat-exchanging component, the refrigerant pressure of described 3rd inner tube outlet, described evaporation are changed In hot observing and controlling parts in the heating power of the primary heater of assisted evaporative heat-exchanging component, described evaporation and heat-exchange observing and controlling parts second The refrigerant temperature of heat-exchanging component to be measured outlet, the refrigerant pressure of described second heat-exchanging component to be measured outlet, described second treat Survey refrigerant temperature and the refrigerant pressure of described second heat-exchanging component entrance to be measured of heat-exchanging component entrance；Described electrical quantity bag Include the heating power of described primary heater.

According to one embodiment of present invention, according to the oil content of the below equation described refrigerating agent containing oil of calculating:

X=a ρ₁+b·T³+c·T²+d·T+e

Wherein, X is the oil content of described refrigerating agent containing oil, ρ₁For flowing through the close of the cold-producing medium of described oil content observing and controlling parts Degree, T is the refrigerant temperature flowing through described oil content observing and controlling parts, and a, b, c, d, e are constant and according to described coolant and freezing The combination variety of machine oil determines.

According to one embodiment of present invention, by refrigerant temperature and the system of described first throttle mechanism observing and controlling component entry Refrigerant pressure is respectively as the refrigerant temperature of the second inner tube outlet of supercool control assembly in described condensing heat-exchange observing and controlling parts And refrigerant pressure, when described condensing heat exchanger to be measured participates in kind of refrigeration cycle, described evaporating heat exchanger to be measured, described first treat Survey the second auxiliary throttling machine of throttle mechanism and described second throttle mechanism to be measured and described second throttle body observing and controlling parts Structure assembly is not involved in kind of refrigeration cycle, according to below equation calculate described refrigerating agent containing oil by described condensing heat exchanger to be measured time Heat exchange amount, pressure drop and cold-producing medium mass dryness fraction:

Q₁=M₁[(1-X)(h_SO-h_CI1)+C₀X(T_SO-T_CI1)]-C[m₁(T₂-T₁)+m₂(T₄-T₃)]；

Δ P1=P_CO1-P_CI1；

χ₁=f₃(h_CO1,T_CO1,P_CO1), wherein,

Wherein, Q₁For described refrigerating agent containing oil by heat exchange amount during described condensing heat exchanger to be measured, Δ P1 is described containing Oil cold-producing medium is by pressure drop during described condensing heat exchanger to be measured, χ₁Cold-producing medium for the outlet of described condensing heat exchanger to be measured is done Degree, M₁For flowing through the mass flow of the cold-producing medium of described first throttle mechanism observing and controlling parts, X is the oil-containing of described refrigerating agent containing oil Rate, h_SOFor the cold-producing medium of described second inner tube outlet than enthalpy, h_SOWith the characteristic of cold-producing medium and described second inner tube outlet Refrigerant temperature T_SO, the refrigerant pressure P of described second inner tube outlet_SORelevant, h_CI1Enter for described first heat-exchanging component to be measured The cold-producing medium of mouth is than enthalpy, h_CI1With the characteristic of cold-producing medium and the refrigerant temperature of described first heat-exchanging component entrance to be measured T_CI1, the refrigerant pressure P of described first heat-exchanging component entrance to be measured_CI1Relevant, C₀For the specific heat capacity of refrigerator oil, C is heat exchange The specific heat capacity of medium, m₁For flowing through the volume flow of the heat transferring medium of described first sleeve, T₁Medium for described first sleeve enters Mouth temperature, T₂For the medium outlet temperature of described first sleeve, m₂For flowing through the volume flow of the heat transferring medium of described second sleeve pipe Amount, T₃For the medium inlet temperature of described second sleeve pipe, T₄For the medium outlet temperature of described second sleeve pipe, h_CO1For described first The cold-producing medium of heat-exchanging component to be measured outlet is than enthalpy, h_CO1With the characteristic of cold-producing medium and described first heat-exchanging component to be measured outlet Refrigerant temperature T_CO1, the refrigerant pressure P of described first heat-exchanging component to be measured outlet_CO1Relevant.

According to one embodiment of present invention, when described evaporating heat exchanger to be measured participates in kind of refrigeration cycle, described to be measured cold Solidifying heat exchanger, described first throttle mechanism to be measured and described second throttle mechanism to be measured are not involved in kind of refrigeration cycle, according to following public affairs Formula calculates described refrigerating agent containing oil by heat exchange amount during described evaporating heat exchanger to be measured, pressure drop and cold-producing medium mass dryness fraction:

Q₂=(M₁+M₂)[(1-X)h_EO2+C₀XT_EO2]-(1-X)(M₁h_TI1+M₂h_TI2)-C₀M₁XT_TI1-C₀M₂XT_TI2-Q₀；

Δ P2=P_EO1-P_EI1；

${\mathrm{\χ}}_2=\frac{(M1h_{TI1}+M2h_{TI2})(1-X)+{\mathrm{XC}}_0(M1T_{TI1}+M2T_{TI2})-(M1+M2)\[(1-X)h_{EIL}+{\mathrm{XC}}_0{T}_{EI}\]}{(h_{EIL}-h_{EIG})(M1+M2)(1-X)};$

Wherein, Q₂For described refrigerating agent containing oil by heat exchange amount during described evaporating heat exchanger to be measured, Δ P2 is described containing Oil cold-producing medium is by pressure drop during described evaporating heat exchanger to be measured, χ₂Cold-producing medium for described evaporative heat exchanger inlet to be measured is done Degree, M₁For flowing through the mass flow of the cold-producing medium of described first throttle mechanism observing and controlling parts, M₂For flowing through described second throttle body The mass flow of the cold-producing medium of observing and controlling parts, X is the oil content of described refrigerating agent containing oil, h_EO2For described 3rd inner tube outlet Cold-producing medium is than enthalpy, h_EO2With the characteristic of cold-producing medium and refrigerant temperature T of described 3rd inner tube outlet_EO2, in the described 3rd The refrigerant pressure P of pipe outlet_EO2Relevant, h_TI1For the cold-producing medium of described first throttle mechanism observing and controlling component entry than enthalpy, h_TI1 With the characteristic of cold-producing medium and refrigerant temperature T of described first throttle mechanism observing and controlling component entry_TI1, described first throttle machine The refrigerant pressure P of structure observing and controlling component entry_TI1Relevant, h_TI2With refrigerant property and described second throttle body observing and controlling parts Refrigerant temperature T of entrance_TI2Refrigerant pressure P with described second throttle body observing and controlling component entry_TI2Relevant, C₀For freezing The specific heat capacity of machine oil, Q₀For the heating power of described primary heater, P_EO1Refrigeration for described second heat-exchanging component to be measured outlet Agent pressure, h_EILFor the described saturated liquid refrigerant of evaporative heat exchanger inlet to be measured than enthalpy, h_EIGDescribed evaporating heat exchanger to be measured The saturated gaseous refrigerant of entrance is than enthalpy, h_EILAnd h_EIGAll with refrigerant temperature T of described second heat-exchanging component entrance to be measured_EI1 Relevant.

According to one embodiment of present invention, when described first throttle mechanism to be measured participates in kind of refrigeration cycle, described to be measured Condensing heat exchanger, evaporating heat exchanger to be measured and described second throttle mechanism to be measured and described first throttle mechanism observing and controlling parts In first auxiliary throttle mechanism assembly and described second throttle body observing and controlling parts in second auxiliary throttle mechanism assembly not Participate in kind of refrigeration cycle, calculate described refrigerating agent containing oil by flow system during described first throttle mechanism to be measured according to below equation Number:

$C_{D1}=\frac{M_1}{A_1\sqrt{2{\mathrm{\ρ}}_2(P_{TI1}-P_{TO1})}}$

Wherein, C_D1For described refrigerating agent containing oil by discharge coefficient during described first throttle mechanism to be measured, M₁For flowing through The mass flow of the cold-producing medium of described first throttle mechanism observing and controlling parts, A₁Circulating face for described first throttle mechanism to be measured Long-pending, ρ₂For flowing through the density of the cold-producing medium of described first throttle mechanism observing and controlling parts, P_TI1For observing and controlling portion of described first throttle mechanism The refrigerant pressure of part entrance, P_TO1Refrigerant pressure for described first throttle mechanism observing and controlling knockdown export.

According to one embodiment of present invention, when described second throttle mechanism to be measured participates in kind of refrigeration cycle, described to be measured Condensing heat exchanger, evaporating heat exchanger to be measured and described first throttle mechanism to be measured and described second throttle body observing and controlling parts In second auxiliary throttle mechanism assembly be not involved in kind of refrigeration cycle, when described gaseous refrigerant or described gas-liquid two-phase state cold-producing medium During by described second throttle mechanism to be measured, calculate described refrigerating agent containing oil by described second throttling to be measured according to below equation Discharge coefficient during mechanism:

$C_{D2}=\frac{M_2}{A_2\sqrt{2{\mathrm{\ρ}}_3(P_{TI2}-P_{TO2})}}$

Wherein, C_D2For described refrigerating agent containing oil by discharge coefficient during described second throttle mechanism to be measured, M₂For flowing through The mass flow of the cold-producing medium of described second throttle body observing and controlling parts, A₂Circulating face for described second throttle mechanism to be measured Long-pending, ρ₃For flowing through the density of the cold-producing medium of described second throttle body observing and controlling parts, P_TI2For described second throttle body observing and controlling portion The refrigerant pressure of part entrance, P_TO2Refrigerant pressure for described second throttle body observing and controlling knockdown export.

According to one embodiment of present invention, described frequency conversion refrigeration part includes frequency conversion cooling assembly, separating of oil assembly, confession Line of oils part and and oil-gas mixer, described method also includes: after calculating the oil content of described refrigerating agent containing oil, according to institute The oil content stating refrigerating agent containing oil regulates the fuel delivery of the described fuel feeding assembly described oil-gas mixer of supply, so that described oil-containing system The oil content of cryogen reaches to set oil content.

Accompanying drawing explanation

Fig. 1 is the block diagram of the measurement apparatus for studying refrigerating agent containing oil characteristic according to embodiments of the present invention；

Fig. 2 is according to an embodiment of the invention for studying the square frame signal of the measurement apparatus of refrigerating agent containing oil characteristic Figure；

Fig. 3 is according to an embodiment of the invention for studying the structural principle of the measurement apparatus of refrigerating agent containing oil characteristic Figure；

Fig. 4 is the stream of the measuring method of the measurement apparatus for studying refrigerating agent containing oil characteristic according to embodiments of the present invention Cheng Tu；

Fig. 5 is according to an embodiment of the invention for studying the measuring method of the measurement apparatus of refrigerating agent containing oil characteristic Flow chart.

Detailed description of the invention

Embodiments of the invention are described below in detail, and the example of described embodiment is shown in the drawings, the most from start to finish Same or similar label represents same or similar device or has the device of same or like function.Below with reference to attached The embodiment that figure describes is exemplary, it is intended to is used for explaining the present invention, and is not considered as limiting the invention.

Below with reference to the accompanying drawings describe the embodiment of the present invention for study refrigerating agent containing oil characteristic measurement apparatus and Measuring method.

Fig. 1 is the block diagram of the measurement apparatus for studying refrigerating agent containing oil characteristic according to embodiments of the present invention. As it is shown in figure 1, this measurement apparatus being used for studying refrigerating agent containing oil characteristic includes: control module 100, data acquisition module 200 With control module 300.

Wherein, control module 100 is provided with device under test, and control module 100 is used for when device starts plant running Duty parameter, cold-producing medium parameter, heat transferring medium parameter and electrical quantity under state measure, and adjust duty parameter Joint；Data acquisition module 200 is used for gathering duty parameter, cold-producing medium parameter, heat transferring medium parameter and electrical quantity；Control module 300 are connected with data acquisition module 200, steady for the duty parameter that data acquisition module 200 collects of control module 300 Qualitative judge, and when judging that duty parameter is in steady statue, according to duty parameter, cold-producing medium parameter, heat transferring medium Parameter and the oil content of electrical quantity calculating refrigerating agent containing oil and refrigerating agent containing oil are by performance during device under test.

It is to say, after device under test is installed to control module 100, i.e. can be controlled for studying refrigerating agent containing oil special The measurement apparatus of property starts and runs, during this plant running, the duty parameter of control module 100 real-time measurement apparatus, Cold-producing medium parameter, heat transferring medium parameter and electrical quantity, control module 100 also can be adjusted such that duty parameter to duty parameter Gradually tend towards stability, control module 300 judge after duty parameter is in steady statue according to duty parameter, cold-producing medium parameter, Heat transferring medium parameter and the oil content of electrical quantity calculating refrigerating agent containing oil and refrigerating agent containing oil are by performance example during device under test Such as heat transfer characteristic, drooping characteristic and discharge characteristic.

It should be noted that steady statue can refer to the deviation between measured value and setting value without departing from the first preset range, And the fluctuation that measured value is in Preset Time is without departing from the second preset range.Such as, measured value does not surpasses with the deviation of setting value Go out setting value ± 1%, and measured value interior fluctuation in 15 minutes without departing from ± 1%.In one embodiment of the invention, Control module 300 can gather a duty parameter every preset interval time such as 30 seconds, and according to the first Preset Time such as In 10 minutes, the duty parameter of continuous acquisition judges the stability of duty parameter.

It addition, in some embodiments of the invention, after device under test is installed, before plant running, dress should also be made Put meet without incoagulable gas and without cold-producing medium leak requirement.Additionally, this device can install multiple device under test simultaneously, but It is that the most only permission selects a device under test to analyze object as main measurement, and refrigeration must be manually adjusted after device startup The content of agent so that it is meet operation demand.

A specific embodiment according to the present invention, data acquisition module 200 can use high-precision multi-path data to remember Each parameter is acquired and record by record instrument.Wherein, high-precision multi-path data logger can be by RS232 or RS-485 etc. Communication mode carries out data acquisition, or uses master die analog quantity input pattern to carry out data acquisition.

According to one embodiment of present invention, device under test include condensing heat exchanger to be measured, evaporating heat exchanger to be measured, first Throttle mechanism to be measured and the second throttle mechanism to be measured, wherein, when device under test is condensing heat exchanger to be measured or evaporation and heat-exchange to be measured During device, refrigerating agent containing oil includes the heat exchange amount of device under test, the pressure drop of device under test and refrigeration by performance during device under test Agent mass dryness fraction；When device under test is the first throttle mechanism to be measured or the second throttle mechanism to be measured, refrigerating agent containing oil passes through device to be measured Performance during part includes the discharge coefficient of device under test.

And contain it is to say, control module 300 can measure refrigerating agent containing oil by heat exchange amount and pressure drop during heat exchanger Oil cold-producing medium is by discharge coefficient during throttle mechanism, thus the exploitation for the heat exchanger in refrigeration plant, throttle mechanism provides Accurate data.

It should be noted that condensing heat exchanger to be measured, evaporating heat exchanger to be measured, the first throttle mechanism to be measured and second are to be measured Throttle mechanism can be installed in control module 100 simultaneously, but main analysis object of measuring the most only allows to select one of them.

The concrete structure of the control module 100 of the embodiment of the present invention is described below in conjunction with Fig. 2 and Fig. 3.

According to one embodiment of present invention, as in figure 2 it is shown, control module 100 includes that frequency conversion refrigeration part 50, condensation are changed Hot observing and controlling parts 40, oil content observing and controlling parts 90, first throttle mechanism observing and controlling parts 60, second throttle body observing and controlling parts 70 and Evaporation and heat-exchange observing and controlling parts 80.

Wherein, frequency conversion refrigeration part 50 for for condensing heat-exchange observing and controlling parts 40, first throttle mechanism observing and controlling parts 60, the Two throttle mechanism observing and controlling parts 70 and evaporation and heat-exchange observing and controlling parts 80 provide oil content adjustable refrigerating agent containing oil；Condensing heat-exchange is surveyed The entrance of control parts 40 is connected with the outlet of frequency conversion refrigeration part 50, and condensing heat-exchange observing and controlling parts 40 are for leading at refrigerating agent containing oil When crossing condensing heat-exchange observing and controlling parts 40, duty parameter and heat transferring medium parameter to condensing heat-exchange observing and controlling parts 40 measure, and The duty parameter of condensing heat-exchange observing and controlling parts 40 is adjusted such that the duty parameter of condensing heat-exchange observing and controlling parts 40 is in surely Determine state；The entrance of oil content observing and controlling parts 90 is connected with the outlet of condensing heat-exchange observing and controlling parts 40, oil content observing and controlling parts 90 Outlet be connected with the entrance of first throttle mechanism observing and controlling parts 60, oil content observing and controlling parts 90 are for passing through at refrigerating agent containing oil Cold-producing medium parameter during oil content observing and controlling parts 90 measures；The entrance of first throttle mechanism observing and controlling parts 60 is surveyed with oil content The outlet of control parts 90 is connected, and first throttle mechanism observing and controlling parts 60 are for passing through the observing and controlling of first throttle mechanism at refrigerating agent containing oil During parts 60, duty parameter and cold-producing medium parameter to first throttle mechanism observing and controlling parts 60 measure, and to first throttle machine The duty parameter of structure observing and controlling parts 60 is adjusted such that the duty parameter of first throttle mechanism observing and controlling parts 60 is in stable shape State；The entrance of second throttle body observing and controlling parts 70 respectively with outlet and the condensing heat-exchange observing and controlling parts 40 of frequency conversion refrigeration part 50 Central exit be connected, second throttle body observing and controlling parts 70 at refrigerating agent containing oil by second throttle body observing and controlling parts When 70, duty parameter and cold-producing medium parameter to second throttle body observing and controlling parts 70 measure, and survey second throttle body The duty parameter of control parts 70 is adjusted such that the duty parameter of second throttle body observing and controlling parts 70 is in steady statue；Steam Send out the first entrance of heat exchange observing and controlling parts 80 and the second entrance respectively with the outlet and second of first throttle mechanism observing and controlling parts 60 The outlet correspondence of throttle mechanism observing and controlling parts 70 is connected, the outlet of evaporation and heat-exchange observing and controlling parts 80 and frequency conversion refrigeration part 50 entrance Be connected, evaporation and heat-exchange observing and controlling parts 80 refrigerating agent containing oil by evaporation and heat-exchange observing and controlling parts 80 time to evaporation and heat-exchange observing and controlling parts Duty parameter and the electrical quantity of 80 measure, and the duty parameter of evaporation and heat-exchange observing and controlling parts 80 is adjusted such that evaporation The duty parameter of heat exchange observing and controlling parts 80 is in steady statue.

A specific embodiment according to the present invention, as it is shown on figure 3, frequency conversion refrigeration part 50 includes frequency conversion cooling assembly 10, separating of oil assembly 20, fuel feeding assembly 30 and oil-gas mixer 41.

Wherein, frequency conversion cooling assembly 10 can be frequency-changeable compressor or variable frequency power pump, and frequency conversion cooling assembly 10 is used for will The gaseous refrigerant of low-temp low-pressure becomes the gaseous refrigerant of High Temperature High Pressure, and is that refrigeration is followed according to the limit of power of device under test Ring provides the refrigerating agent containing oil of regime flow.

Separating of oil assembly 20 can include the first high-efficiency oil separator 21 and the second high-efficiency oil separator 22, and the first high efficient oil divides The mode using refrigerant tubing series connection and the parallel connection of refrigerator oil pipeline from device 21 and the second high-efficiency oil separator 22 connects.Oil point It is connected with the outlet of frequency conversion cooling assembly 10 from the entrance of assembly 20, the refrigerant outlet of separating of oil assembly 20 and oil-gas mixer The refrigerant inlet of 41 is connected, and the refrigerator oil outlet of separating of oil assembly 20 is connected with the entrance of fuel feeding assembly 30, separating of oil group Part 20 is for separating the refrigerator oil in the high temperature and high pressure gaseous refrigerant that frequency-changeable compressor is discharged.

Fuel feeding assembly 30 includes oil storage diversion cans 31, frequency conversion high-pressure oil pump 32 and the check valve being linked in sequence by pipeline 34, fuel feeding assembly 30 also includes needle-valve 35.Wherein, fuel feeding assembly 30 possesses two outlets, and the first outlet of fuel feeding assembly 30 exists It is connected with the refrigerator oil entrance of oil-gas mixer 41, with to condensing heat-exchange observing and controlling parts 40, first throttle after check valve 34 Mechanism's observing and controlling parts 60, second throttle body observing and controlling parts 70 and evaporation and heat-exchange observing and controlling parts 80 supply the fridge of regime flow Oil；The adjustable needle-valve of aperture 35 is drawn and concatenated to second outlet from oil storage diversion cans 31, with the arrival end of frequency conversion cooling assembly 10 It is connected, to supply the refrigerator oil needed for work to frequency conversion cooling assembly 10.Further, fuel feeding assembly 30 may also include backflow Control valve 33, recycle control valve 33 is connected in parallel with frequency conversion high-pressure oil pump 32, the entrance of recycle control valve 33 and frequency conversion hydraulic oil The outlet of pump 32 is connected, and the outlet of recycle control valve 33 is connected with oil storage diversion cans 31, and recycle control valve 33 is used for controlling freezing The return flow of machine oil.It addition, the oil storage diversion cans 31 of fuel feeding assembly 30 be also equipped with a string have the adding of plus/minus stop valve 36/ Subtract oil branch road.

Oil-gas mixer 41 has refrigerant inlet and refrigerator oil entrance, the refrigerator oil entrance of oil-gas mixer 41 with First outlet of fuel feeding assembly 30 is connected, the refrigerant outlet phase of the refrigerant inlet of oil-gas mixer 41 and separating of oil assembly 20 Even, the outlet of oil-gas mixer 41 is connected with condensing heat-exchange observing and controlling parts 40, the oil-gas mixer 41 refrigeration after separating Agent uniformly mixes with refrigerator oil.

Control module 300 is for after the oil content calculating refrigerating agent containing oil, according to the oil content of refrigerating agent containing oil Regulation fuel feeding assembly 30 supplies the fuel delivery (i.e. fridge oil mass) of oil-gas mixer 41, so that the oil content of refrigerating agent containing oil reaches To setting oil content.

A specific embodiment according to the present invention, as it is shown on figure 3, condensing heat-exchange observing and controlling parts 40 include: first is to be measured Heat-exchanging component 43, auxiliary condensing heat-exchange assembly 46 and supercool control assembly 48.Condensing heat-exchange observing and controlling parts 40 also include: first regards Mirror 45.

Wherein, the entrance of the first heat-exchanging component 43 to be measured is as the entrance of condensing heat-exchange observing and controlling parts 40, and first to be measured changes Hot assembly 43 include first stop valve the 432, first connectivity port to be measured 431, second stop valve 433 of being sequentially connected in series and with string The first bypass cutoff valve that first stop valve the 432, first connectivity port to be measured 431, second stop valve 433 of connection is connected in parallel 434, the first connectivity port 431 to be measured is used for connecting condensing heat exchanger to be measured, and condensing heat exchanger to be measured can include passing through cold-producing medium The 4th inner tube and by the Quadruplet pipe of heat transferring medium, heat transferring medium can be wind, water or other media.Need explanation It is that first stop valve the 432, first connectivity port to be measured 431, second stop valve 433 is linked in sequence by pipeline, when the first cut-off When valve 432 and the second stop valve 433 turn on and the first bypass cutoff valve 434 ends, condensing heat exchanger to be measured participates in kind of refrigeration cycle, And when the first stop valve 432 with time the second stop valve 433 ends and the first bypass cutoff valve 434 turns on, condensing heat exchanger to be measured It is not involved in kind of refrigeration cycle.

The entrance of auxiliary condensing heat-exchange assembly 46 and the outlet of the first heat-exchanging component 43 to be measured are connected, and assist condensing heat-exchange group The outlet of part 46 is connected with second throttle body observing and controlling parts 70 as the central exit of condensing heat-exchange observing and controlling parts 40, assists cold Solidifying heat-exchanging component 46 includes the first inner tube 461 by refrigerating agent containing oil and by the first sleeve 462 of heat transferring medium, in first The entrance of pipe 461 is the entrance of auxiliary condensing heat-exchange assembly 46, and the outlet of the first inner tube 461 is auxiliary condensing heat-exchange assembly The outlet of 46.Heat transferring medium can be wind, water or other media.As a example by water, auxiliary condensing heat-exchange assembly 46 also includes first Water circulating pump 463, secondary heater 464 and the first motorized adjustment water valve 468, the first water circulating pump 463 is for first sleeve 462 cooling water supplies, secondary heater 464 is for heating cooling water, and the first electric control valve 468 is used for regulating current Amount.

The entrance of supercool control assembly 48 is connected with the outlet of auxiliary condensing heat-exchange assembly 46, going out of supercool control assembly 48 Mouthful as the outlet of condensing heat-exchange observing and controlling parts 40, it is connected with the entrance of first throttle mechanism observing and controlling parts 60, supercool control group Part 48 includes the second inner tube 481 by cold-producing medium and by the second sleeve pipe 482 of heat transferring medium, the entrance of the second inner tube 481 Being the entrance of supercool control assembly 48, the outlet of the second inner tube 481 is the outlet of supercool control assembly 48.Heat transferring medium can To be wind, water or other media.As a example by water, supercool control assembly 48 also includes the second water circulating pump 483 and the second electric adjustable Thrift lock 487, the second water circulating pump 483 is for the second sleeve pipe 482 cooling water supply, and the second electric adjustable water valve 487 is used for adjusting Joint cooling water flow.

According to one embodiment of present invention, duty parameter includes the cold-producing medium temperature of the first heat-exchanging component 43 entrance to be measured Degree, the refrigerant pressure of the first heat-exchanging component 43 entrance to be measured, the refrigerant temperature and the of the first heat-exchanging component 43 to be measured outlet The refrigerant pressure of one heat-exchanging component 43 to be measured outlet, heat transferring medium parameter includes flowing through the heat transferring medium of first sleeve 462 Specific heat capacity, density and volume flow, the medium inlet temperature of first sleeve 462, the medium outlet temperature of first sleeve 462, stream Cross the specific heat capacity of heat transferring medium, density and the volume flow of the second sleeve pipe 482, the medium inlet temperature of the second sleeve pipe 482 and The medium outlet temperature of two sleeve pipes 482.

Wherein, condensing heat-exchange observing and controlling parts 40 also include: first temperature meter the 421, first pressometer 422, Two temperature meter the 441, second pressometer 442, first flow measuring device the 467, the 4th temperature meter the 465, the 5th temperature Degree measuring device 466, second flow measuring device the 486, the 6th temperature meter 484 and the 7th temperature meter 485.

Wherein, the first temperature meter 421 for measuring the refrigerant temperature of the first heat-exchanging component 43 entrance to be measured, first Temperature meter 421 may be provided at the entrance of the first heat-exchanging component 43 to be measured；First pressometer 422 is treated for measuring first Surveying the refrigerant pressure of heat-exchanging component 43 entrance, the first pressometer 422 may be provided at entering of the first heat-exchanging component 43 to be measured Mouthful；Second temperature meter 441 is for measuring the refrigerant temperature of the first heat-exchanging component 43 to be measured outlet, the second temperature meter 441 outlets that may be provided at the first heat-exchanging component 43 to be measured；Second pressometer 442 is for measuring the first heat-exchanging component to be measured The refrigerant pressure of 43 outlets, the second pressometer 442 may be provided at the outlet of the first heat-exchanging component 43 to be measured；First flow Measuring device 467 is for measuring the volume flow of the heat transferring medium flowing through first sleeve 462, and first flow measuring device 467 can be arranged On pipeline between first sleeve 462 and the first electric control valve 468；4th temperature meter 465 is used for measuring first set The medium inlet temperature of pipe 462, the 4th temperature meter 465 may be provided at the entrance of first sleeve 462；5th temperature meter 466 for measuring the medium outlet temperature of first sleeve 462, and the 5th temperature meter 466 may be provided at going out of first sleeve 462 Mouthful；Second flow measuring device 486 is for measuring the volume flow of the heat transferring medium flowing through the second sleeve pipe 482, and second flow is measured Device 486 may be provided on the pipeline between the second sleeve pipe 482 and the second electric control valve 487；6th temperature meter 484 is used for Measuring the medium inlet temperature of the second sleeve pipe 482, the 6th temperature meter 484 can arrange the entrance of the second sleeve pipe 482；7th temperature Degree measuring device 485 is for measuring the medium outlet temperature of the second sleeve pipe 482, and the 7th temperature meter 485 can arrange the second sleeve pipe The outlet of 482.

As it has been described above, condensing heat-exchange observing and controlling parts 40 include being linked in sequence by pipeline the first temperature meter 421, One pressometer 422, first heat-exchanging component to be measured 43, second temperature meter the 441, second pressometer 442, first regard Mirror 45, auxiliary condensing heat-exchange assembly 46 and supercool control assembly 48, condensing heat-exchange observing and controlling parts 40 are used for controlling and measure oil-containing Cold-producing medium is by duty parameter during condensing heat-exchange observing and controlling parts 40 and heat transferring medium parameter, to calculate condensing heat exchanger to be measured The i.e. heat exchange amount of condensation heat transfer characteristics and drooping characteristic i.e. pressure drop.

It addition, according to a specific embodiment of the present invention, as it is shown on figure 3, condensing heat-exchange observing and controlling parts 40 also include: temperature Degree measuring device 471 is for measuring the refrigerant temperature of the first inner tube 461 outlet；Pressometer 472 is for measuring the first inner tube The refrigerant pressure of 461 outlets.

A specific embodiment according to the present invention, as it is shown on figure 3, cold-producing medium parameter includes flowing through oil content observing and controlling parts The temperature of the cold-producing medium of 90 and density, oil content observing and controlling parts 90 include: the 12nd temperature meter 911 and the first density measure Device 92.

Wherein, the 12nd temperature meter 91, for measuring the refrigerant temperature flowing through oil content observing and controlling parts 90, i.e. flows Cross the refrigerant temperature of the first dasymeter 92；First dasymeter 92 flows through oil content observing and controlling parts 90 for measuring The density of cold-producing medium, i.e. flows out and is flowed into the oil-containing system of first throttle mechanism observing and controlling parts 60 from condensing heat-exchange observing and controlling parts 40 The density of cryogen.Specifically, the 12nd temperature meter 91 may be provided at the entrance of the first dasymeter 92.

As it has been described above, oil content observing and controlling parts 90 include the 12nd temperature meter 91 and being linked in sequence by pipeline One dasymeter 92.When oil content observing and controlling parts 90 are used for measuring pure liquid refrigerating agent containing oil by oil content observing and controlling parts 90 Cold-producing medium parameter, with calculate with control refrigerating agent containing oil oil content.

A specific embodiment according to the present invention, as it is shown on figure 3, first throttle mechanism observing and controlling parts 60 include that first treats Survey throttle mechanism assembly 63 and the first auxiliary throttle mechanism assembly 62 being connected in parallel with the first throttle mechanism assembly 63 to be measured.

Wherein, the entrance of the first throttle mechanism assembly 63 to be measured and the entrance of the first auxiliary throttle mechanism assembly 62 are connected to As the entrance of first throttle mechanism observing and controlling parts 60 after together, the outlet of the first throttle mechanism assembly 63 to be measured and the first auxiliary The outlet of throttle mechanism assembly 62 link together after as the outlet of first throttle mechanism observing and controlling parts 60, and by first The exportable liquid refrigerant of outlet of throttle mechanism observing and controlling parts 60 is to evaporation and heat-exchange observing and controlling parts 80.

First throttle mechanism assembly 63 to be measured includes the 3rd stop valve the 631, second connectivity port 632 to be measured being sequentially connected in series And the 4th stop valve 633, the second connectivity port 632 to be measured is for connecting the first throttle mechanism to be measured；First auxiliary throttling machine Structure assembly 62 includes the 5th stop valve the 621, first electric expansion valve 622 and the 6th stop valve 623 being sequentially connected in series.

It should be noted that the 3rd stop valve the 631, second connectivity port 632 to be measured and the 4th stop valve 633 are by pipe Road is linked in sequence, and the 5th stop valve the 621, first electric expansion valve 622 and the 6th stop valve 623 are linked in sequence by pipeline, When the 3rd stop valve 631 with time the 4th stop valve 633 turns on and the 5th stop valve 621 and the 6th stop valve 623 end, first treats Survey throttle mechanism assembly 63 and participate in kind of refrigeration cycle, and when the 3rd stop valve 631 and the 4th stop valve 633 end and the 5th stop valve 621 and the 6th stop valve 623 when turning on, the first throttle mechanism assembly 63 to be measured is not involved in kind of refrigeration cycle, the first auxiliary throttling machine Structure assembly 62 participates in kind of refrigeration cycle.

According to one embodiment of present invention, duty parameter includes the cold-producing medium of first throttle mechanism observing and controlling parts 60 entrance Temperature, the refrigerant pressure of first throttle mechanism observing and controlling parts 60 entrance, flow through the refrigeration of first throttle mechanism observing and controlling parts 60 The mass flow of agent and the refrigerant pressure of first throttle mechanism observing and controlling parts 60 outlet, cold-producing medium parameter includes flowing through first segment The density of the cold-producing medium of stream mechanism observing and controlling parts 60, wherein, first throttle mechanism observing and controlling parts 60 also include: the 3rd temperature survey Device the 511, the 3rd pressometer the 512, second dasymeter the 52, the 3rd flow measuring probe 61 and the 4th pressometer 641.

Wherein, the 3rd temperature meter 511 is for measuring the refrigerant temperature of first throttle mechanism observing and controlling parts 60 entrance； 3rd pressometer 512 is for measuring the refrigerant pressure of first throttle mechanism observing and controlling parts 60 entrance；Second density measure Device 52 is for measuring the density of the cold-producing medium flowing through first throttle mechanism observing and controlling parts 60；3rd flow measuring probe 61 is used for measuring Flow through the mass flow of the cold-producing medium of first throttle mechanism observing and controlling parts 60；4th pressometer 641 is used for measuring first segment The refrigerant pressure of stream mechanism observing and controlling parts 60 outlet.3rd temperature meter the 511, the 3rd pressometer the 512, second density Measuring device 52 and the 3rd flow measuring probe 61 all may be provided at the entrance of first throttle mechanism observing and controlling parts 60, the 4th pressure measxurement Device 641 is arranged on the outlet of first throttle mechanism observing and controlling parts 60.It addition, the 3rd pressometer 512 may also be arranged on oil-containing The entrance of rate observing and controlling parts 90.

As it has been described above, first throttle mechanism observing and controlling parts 60 include the 3rd temperature meter being linked in sequence by pipeline 511, the 3rd pressometer the 512, second dasymeter the 52, the 3rd flow measuring probe 61, the first joint to be measured of being connected in parallel Stream mechanism assembly 63 and the first auxiliary throttle mechanism assembly 62 and the 4th pressometer 641.Observing and controlling portion of first throttle mechanism Part 60 is for controlling and measuring pure liquid refrigerating agent containing oil by duty parameter during first throttle mechanism observing and controlling parts 60 and system Cryogen parameter, to calculate the discharge characteristic of the first throttle mechanism to be measured.

According to some embodiments of the present invention, as it is shown on figure 3, the first dasymeter 92 and the second dasymeter 52 are Same dasymeter, the 3rd temperature meter the 511 and the 12nd temperature meter 91 can be same temperature meter.

A specific embodiment according to the present invention, as it is shown on figure 3, second throttle body observing and controlling parts 70 include: second Throttle mechanism assembly 75 to be measured and the second auxiliary throttle mechanism assembly 76.

Wherein, the second auxiliary throttle mechanism assembly 76 is connected in parallel with the second throttle mechanism assembly 75 to be measured, the of parallel connection One end (entrance) of two auxiliary throttle mechanism assemblies 76 and the second throttle mechanism assembly 75 to be measured is as second throttle body observing and controlling The entrance of parts 70, the second auxiliary throttle mechanism assembly 76 in parallel (goes out with the other end of the second throttle mechanism assembly 75 to be measured Mouthful) as the outlet of second throttle body observing and controlling parts 70；Wherein, the entrance of second throttle body observing and controlling parts 70 passes through the tenth One stop valve 71 is connected with the outlet of frequency conversion refrigeration part 50, and the entrance of second throttle body observing and controlling parts 70 is also by the 12nd Stop valve 78 is connected with the outlet of auxiliary condensing heat-exchange assembly 46.

It is to say, the entrance of second throttle body observing and controlling parts 70 is connected to two positions, i.e. frequency conversion refrigeration part 50 Outlet and the outlet of auxiliary condensing heat-exchange assembly 46, the outlet of frequency conversion refrigeration part 50 can be by the 11st stop valve 71 to the Two throttle mechanism assemblies 75 to be measured or the second auxiliary throttle mechanism assembly 76 carry gaseous state refrigerating agent containing oil, assist condensing heat-exchange group The outlet of part 46 assists throttle mechanism assembly by the 62nd stop valve 78 to the second throttle mechanism assembly 75 or second to be measured 76 conveying gas-liquid binary states refrigerating agent containing oils.

More specifically, the second throttle mechanism assembly 75 to be measured includes the 7th stop valve the 751, the 3rd company to be measured being sequentially connected in series Connecing port 752 and the 8th stop valve 753, the second throttle mechanism assembly 75 to be measured includes the 3rd connectivity port to be measured, and the 3rd treats Survey connectivity port for connecting the second throttle mechanism to be measured；Second auxiliary throttle mechanism assembly 76 includes the 9th section be sequentially connected in series Only valve the 761, second electric expansion valve 762 and the tenth stop valve 763.

It should be noted that the 7th stop valve the 751, the 3rd connectivity port 752 to be measured and the 8th stop valve 753 are by pipe Road is linked in sequence, and the 9th stop valve the 761, second electric expansion valve 762 and the tenth stop valve 763 are linked in sequence by pipeline, When the 7th stop valve 751 with time the 8th stop valve 753 turns on and the 9th stop valve 761 and the tenth stop valve 763 end, second treats Survey throttle mechanism assembly 75 and participate in kind of refrigeration cycle, and when the 7th stop valve 751 and the 8th stop valve 753 end and the 9th stop valve 761 and the tenth stop valve 763 when turning on, the second throttle mechanism assembly 75 to be measured is not involved in kind of refrigeration cycle, the second auxiliary throttling machine Structure assembly 76 participates in kind of refrigeration cycle.

According to one embodiment of present invention, duty parameter includes the cold-producing medium flowing through second throttle body observing and controlling parts 70 The refrigerant temperature of mass flow second throttle body observing and controlling parts 70 entrance, second throttle body observing and controlling parts 70 entrance Refrigerant pressure and the refrigerant pressure of second throttle body observing and controlling parts 70 outlet, cold-producing medium parameter includes flowing through second section The density of the cold-producing medium of stream mechanism observing and controlling parts 70, wherein, second throttle body observing and controlling parts 70 also include: triple density is measured Device the 73, the 4th flow measuring probe the 74, the 8th temperature meter the 721, the 8th pressometer 722 and the 5th pressometer 771.

Wherein, triple density measuring device 73 is for measuring the close of the cold-producing medium that flows through second throttle body observing and controlling parts 70 Degree；4th flow measuring probe 74 is for measuring the mass flow of the cold-producing medium flowing through second throttle body observing and controlling parts 70；8th Temperature meter 721 is for measuring the refrigerant temperature of second throttle body observing and controlling parts 70 entrance；8th pressometer 722 For measuring the refrigerant pressure of second throttle body observing and controlling parts 70 entrance；5th pressometer 771 is for measurement second The refrigerant pressure of throttle mechanism observing and controlling parts 70 outlet.

Specifically, triple density measuring device the 73, the 4th flow measuring probe the 74, the 8th temperature meter the 721, the 8th pressure is surveyed Measuring device 722 all may be provided at the entrance of second throttle body observing and controlling parts 70, and the 5th pressometer 771 is arranged on the second throttling The outlet of mechanism's observing and controlling parts 70.

As it has been described above, second throttle body observing and controlling parts 70 include the 8th temperature meter being linked in sequence by pipeline 721, the 8th pressometer 722, triple density measuring device the 73, the 4th flow measuring probe 74, the in parallel second auxiliary throttling machine Structure assembly 76 and the second throttle mechanism assembly 75 to be measured and the 5th pressometer 771.Second throttle body observing and controlling parts 70 For control with measure gaseous state or the gas-liquid two-phase refrigerating agent containing oil duty parameter by second throttle body observing and controlling parts 70 and Cold-producing medium parameter, to calculate the discharge characteristic of the second throttle mechanism to be measured.

A specific embodiment according to the present invention, as it is shown on figure 3, evaporation and heat-exchange observing and controlling parts 80 include: gas-liquid mixed Device the 81, second heat-exchanging component 84 to be measured and assisted evaporative heat-exchanging component 86.Evaporation and heat-exchange observing and controlling parts 80 also include: the second visor 82。

Wherein, the first entrance of air and liquid mixer 81 is as the first entrance of evaporation and heat-exchange observing and controlling parts 80 and first throttle The outlet of mechanism's observing and controlling parts 60 is connected, and the second entrance of air and liquid mixer 81 enters as the second of evaporation and heat-exchange observing and controlling parts 80 Mouth is connected with the outlet of second throttle body observing and controlling parts 60.I.e. saying, evaporation and heat-exchange observing and controlling parts 80 have two entrances, pass through First entrance of liquid refrigerating agent containing oil is connected, by gaseous state refrigerating agent containing oil with the outlet of first throttle mechanism observing and controlling parts 60 The second entrance be connected with the outlet of second throttle body observing and controlling parts 70.

The entrance of the second heat-exchanging component 84 to be measured is connected with the outlet of air and liquid mixer 81, and the second heat-exchanging component 84 to be measured wraps Include be sequentially connected in series the 13rd stop valve 842, the 4th connectivity port 841 to be measured, the 14th stop valve 843 and with connected The second bypass cutoff valve 844 that 13 stop valve the 842, second connectivity port the 841, the 14th to be measured stop valves 843 are connected in parallel, 4th connectivity port 841 to be measured is used for connecting evaporating heat exchanger to be measured, and evaporating heat exchanger to be measured can include passing through refrigerating agent containing oil The 5th inner tube and by the 5th sleeve pipe of heat transferring medium, heat transferring medium can be wind, water or other media.Need explanation It is that the 13rd stop valve the 842, the 4th connectivity port the 841 and the 14th to be measured stop valve 843 is linked in sequence by pipeline, when When 13 stop valve the 842 and the 14th stop valves 843 turn on and the second bypass cutoff valve 844 ends, evaporating heat exchanger to be measured is joined With kind of refrigeration cycle, and when the 13rd stop valve the 842 and the 14th stop valve 843 ends and the second bypass cutoff valve 844 turns on, Evaporating heat exchanger to be measured is not involved in kind of refrigeration cycle.

The outlet of the entrance of assisted evaporative heat-exchanging component 86 and the second heat-exchanging component 84 to be measured is connected, assisted evaporative heat exchange group The outlet of part 86 is connected with the entrance of frequency conversion cooling assembly 10 as the outlet of evaporation and heat-exchange observing and controlling parts 80, assists condensing heat-exchange Assembly 86 includes the 3rd inner tube 861 by refrigerating agent containing oil and heats the refrigerating agent containing oil in the 3rd inner tube 861 Primary heater 862, the entrance of the 3rd inner tube 861 is the entrance of auxiliary condensing heat-exchange assembly 86, the outlet of the 3rd inner tube 861 It is the outlet of auxiliary condensing heat-exchange assembly 86.

According to one embodiment of present invention, duty parameter includes the refrigerant temperature of the 3rd inner tube 861 outlet, in the 3rd The refrigerant pressure of pipe 861 outlet, the heating power of primary heater 862, the cold-producing medium of the second heat-exchanging component 86 to be measured outlet Temperature, second heat-exchanging component 86 to be measured outlet refrigerant pressure, the refrigerant temperature of the second heat-exchanging component 86 entrance to be measured and The refrigerant pressure of the second heat-exchanging component 86 entrance to be measured, electrical quantity includes the heating power of primary heater 862.

Wherein, evaporation and heat-exchange observing and controlling parts 80 also include: the 9th temperature meter the 871, the 9th pressometer 872, merit Rate measuring device (not shown), the tenth temperature meter 851, the tenth pressometer 852, the 11st temperature meter 831 and 11 pressometer 832.

Wherein, the 9th temperature meter 871 is for measuring the refrigerant temperature of the 3rd inner tube 861 outlet；9th pressure is surveyed Measuring device 872 is for measuring the refrigerant pressure of the 3rd inner tube 861 outlet；Power checker is for measuring primary heater 862 Heating power；Tenth temperature meter 851 is for measuring the refrigerant temperature of the second heat-exchanging component 84 to be measured outlet；Tenth pressure Measuring device 852 is for measuring the refrigerant pressure of the second heat-exchanging component 84 to be measured outlet；11st temperature meter 831 is used for surveying The refrigerant temperature of flow control two heat-exchanging component to be measured 84 entrance；11st pressometer 842 is for measuring the second heat exchange to be measured The refrigerant pressure of assembly 84 entrance.

Specifically, the 9th temperature meter 871 and the 9th pressometer 872 may be provided at the outlet of the 3rd inner tube 861； Tenth temperature meter 851 and the tenth pressometer 852 may be provided in outlet that is the 3rd of the second heat-exchanging component 84 to be measured The entrance of pipe 861；11st temperature meter the 831 and the 11st pressometer 832 may be provided at the second heat-exchanging component to be measured The entrance of 84.

As it has been described above, evaporation and heat-exchange observing and controlling parts 80 are included the air and liquid mixer 81 being linked in sequence by pipeline, second regard Mirror the 82, the 11st temperature meter the 831, the 11st pressometer the 832, second heat-exchanging component the 84, the tenth to be measured temperature survey Device the 851, the tenth pressometer 852, assisted evaporative heat-exchanging component the 86, the 9th temperature meter 871 and the 9th pressometer 872.Evaporation and heat-exchange observing and controlling parts 80 are for controlling from the refrigerating agent containing oil measuring different mass dryness fraction by evaporation and heat-exchange observing and controlling parts Duty parameter when 80 and electrical quantity, to calculate heat transfer characteristic and the drooping characteristic of evaporating heat exchanger to be measured.

In an example of the present invention, each temperature meter all includes temperature sensor and measure and control instrument, such as platinum Resistance temperature sensor regulates the combination of display instrument with pid number, and temperature meter is for the temperature measured with control cold-producing medium And export corresponding measurement signal and control signal；Each pressometer all includes pressure transducer and measure and control instrument, such as High-precision pressure sensor regulates the combination of display instrument with pid number, and pressometer is for the pressure measured with control cold-producing medium Power also exports corresponding measurement signal and control signal；Each dasymeter may each be the high pressure resistant densimeter of high accuracy, close Degree measuring device is for measuring the density of refrigerating agent containing oil, and each flow measuring probe may each be coriolis mass flowmeters, stream Measurer for measuring the mass flow of refrigerating agent containing oil, dasymeter and flow measuring probe also can have communication function with And data processing function；Power checker can be power frequency energy meter, and power frequency energy meter is used for measuring electrical heating power, work Frequently energy meter also can possess communication function.

It should be appreciated that described above is used only to citing, not to Test Cycle parameter, cold-producing medium parameter, heat exchange Restriction made by the instrument that medium parameter and electrical quantity are used.

It should be noted that in embodiments of the present invention, the outlet cold-producing medium of supercool control assembly 48 should be at supercool shape State；The outlet cold-producing medium of assisted evaporative heat-exchanging component 86 should be at superheat state.

It addition, in one embodiment of the invention, though the duty parameter of adjacent two module gateways or across Module but the actual spot of measurement the nearest duty parameter of distance, the most available same measuring device is measured, such as, for adjacent First heat-exchanging component 43 to be measured and auxiliary condensing heat-exchange assembly 46, the outlet of the first heat-exchanging component 43 to be measured and auxiliary condensing heat-exchange The entrance of assembly 46 is connected, and the temperature arrived measured by the second temperature meter 441, both can be regarded as the first heat-exchanging component 43 to be measured The refrigerant temperature of outlet, it is also possible to regard the refrigerant temperature of auxiliary condensing heat-exchange assembly 46 entrance as.

For example, the P mentioned in example below_CO1With P_CI2The second temperature meter 441 is all used to measure, T_SO、T_DI1With T_TI1The 3rd temperature meter 511 is all used to measure.

In conjunction with the embodiment of Fig. 3, when control module 300 can calculate refrigerating agent containing oil in the following ways by device under test Performance.

According to one embodiment of present invention, control module 300 can calculate the oil-containing of refrigerating agent containing oil according to below equation Rate:

X=a ρ₁+b·T³+c·T²+d·T+e

Wherein, X is the oil content of refrigerating agent containing oil, ρ₁For flowing through the density of the cold-producing medium of oil content observing and controlling parts 90, T is Flowing through the refrigerant temperature of oil content observing and controlling parts 90, a, b, c, d, e are constant and the combination kind according to coolant and refrigerator oil Class determines.

In conjunction with the embodiment of Fig. 3, the density of the cold-producing medium flowing through oil content observing and controlling parts 90 can pass through the first density measure Device 92 is measured and is obtained, and T is refrigerant temperature T through the first dasymeter 92_DI1, the 12nd temperature meter 91 can be passed through Measurement obtains, it is also possible to refrigerant temperature T of supercool control assembly 48 outlet_SOWith first throttle mechanism observing and controlling parts 60 entrance Refrigerant temperature T_TI1Replace, i.e. T_SO、T_DI1And T_TI1The 3rd temperature meter 511 all can be used to measure.

Specifically, control module 300 can gather the close of the first dasymeter 92 measurement by data acquisition module 200 Spend to obtain refrigerant density ρ of oil content observing and controlling parts 90₁, and gather the 12nd temperature meter 91 measure temperature with Obtain refrigerant temperature T entering the first dasymeter 92_DI1.Afterwards, control module 300 can be according to refrigerant density ρ₁With Refrigerant temperature T_DI1And combine formula X=a ρ₁+b·T³+c·T²+ d T+e at the oil content X of line computation refrigerating agent containing oil, And then control the fuel delivery of fuel feeding assembly 30 so that the oil content X of refrigerating agent containing oil reaches according to the oil content X of refrigerating agent containing oil Set oil content.

According to one embodiment of present invention, can be by the refrigerant temperature of first throttle mechanism observing and controlling parts 60 entrance and system Refrigerant temperature that refrigerant pressure exports respectively as the second inner tube 481 and refrigerant pressure, when condensing heat exchanger to be measured participates in During kind of refrigeration cycle, evaporating heat exchanger to be measured, the first throttle mechanism to be measured and the second throttle mechanism to be measured and the second auxiliary throttling Mechanism assembly 76 is not involved in kind of refrigeration cycle, and control module 300 is calculated refrigerating agent containing oil according to below equation and changed by condensation to be measured Heat exchange amount, pressure drop and cold-producing medium mass dryness fraction during hot device:

Q₁=M₁[(1-X)(h_SO-h_CI1)+C₀X(T_SO-T_CI1)]-C[m₁(T₂-T₁)+m₂(T₄-T₃)], wherein, h_SO=f₁ (T_SO,P_SO),h_CI1=f₂(T_CI1,P_CI1)；

Δ P1=P_CO1-P_CI1；

χ₁=f₃(h_CO1,T_CO1,P_CO1), wherein,

Wherein, Q₁For refrigerating agent containing oil by heat exchange amount during condensing heat exchanger to be measured, Δ P1 is that refrigerating agent containing oil passes through Pressure drop during condensing heat exchanger to be measured, χ₁The cold-producing medium mass dryness fraction exported for condensing heat exchanger to be measured, M₁For flowing through first throttle mechanism The mass flow of the cold-producing medium of observing and controlling parts 60, X is the oil content of refrigerating agent containing oil, h_SOIt it is the refrigeration of the second inner tube 481 outlet Agent is than enthalpy, h_SOCharacteristic and refrigerant temperature T of the second inner tube 481 outlet with cold-producing medium_SO, second inner tube 481 outlet Refrigerant pressure P_SORelevant, h_CI1It is that the cold-producing medium of the first heat-exchanging component 43 entrance to be measured is than enthalpy, h_CI1Characteristic with cold-producing medium And first refrigerant temperature T of heat-exchanging component 43 entrance to be measured_CI1, the refrigerant pressure of the first heat-exchanging component 43 entrance to be measured P_CI1Relevant, C₀For the specific heat capacity of refrigerator oil, C is the specific heat capacity of heat transferring medium, m₁For flowing through the heat transferring medium of first sleeve 462 Volume flow, T₁For the medium inlet temperature of first sleeve 462, T₂For the medium outlet temperature of first sleeve 462, m₂For stream Cross the volume flow of the heat transferring medium of the second sleeve pipe 482, T₃It is the medium inlet temperature of the second sleeve pipe 482, T₄It it is the second sleeve pipe The medium outlet temperature of 482, h_CO1It is that the cold-producing medium of the first heat-exchanging component 43 to be measured outlet is than enthalpy, h_CO1Characteristic with cold-producing medium And first heat-exchanging component 43 to be measured outlet refrigerant temperature T_CO1, the refrigerant pressure of the first heat-exchanging component 43 to be measured outlet P_CO1Relevant.

In conjunction with the embodiment of Fig. 3, M₁Can be measured by the 3rd flow measuring probe 61 and obtain, T_SOThe 3rd temperature survey can be passed through Device 511 is measured and is obtained, P_SOCan be measured by the 3rd pressometer 512 and obtain, T_CI1Can be surveyed by the first temperature meter 421 Measure, P_CI1Can be obtained by measurement by the first pressometer 422, T_CO1Can obtain by measuring the second temperature meter 441, P_CO1Can be measured by the second pressometer 442 and obtain, m₁Can be measured by first flow measuring device 467 and obtain, T₁Can pass through 4th temperature meter 465 is measured and is obtained, T₂Can be measured by the 5th temperature meter 466 and obtain, m₂Can be measured by second Measuring device 486 is measured and is obtained, T₃Can be measured by the 6th temperature meter 484 and obtain, T₄Can be surveyed by the 7th temperature meter 485 Measure.

Specifically, when main measurement analysis object is condensing heat exchanger to be measured, condensing heat exchanger to be measured participates in refrigeration Circulation, evaporating heat exchanger to be measured, the first throttle mechanism to be measured and the second throttle mechanism to be measured are not involved in kind of refrigeration cycle；Use refrigeration Agent single loop circulates, and does not the most enable the second auxiliary throttle mechanism assembly 76.The test of the device for measuring properties of the embodiment of the present invention Step is as follows:

A1: start test device, measure condensing heat exchanger to be measured as relevant duty parameter during Main Analysis object.

When selecting condensing heat exchanger to be measured to analyze object as main measurement, the relevant operating mode that control module 100 is measured Parameter includes: flow through the flow mass M of the cold-producing medium of first throttle mechanism observing and controlling parts 60₁, the oil content X of refrigerating agent containing oil, Refrigerant temperature T of the first heat-exchanging component 43 entrance to be measured_CI1, the refrigerant pressure P of the first heat-exchanging component 43 entrance to be measured_CI1、 Refrigerant temperature T of the second inner tube 481 outlet the most supercool control assembly 48 outlet_SO, the 3rd inner tube 861 i.e. assisted evaporative of outlet changes The refrigerant pressure P of hot assembly 86 outlet_EO2。

A2: be adjusted relevant duty parameter, so that duty parameter reaches steady statue.

Specifically, when selecting condensing heat exchanger to be measured to analyze object as main measurement, frequency conversion refrigeration part 50 Flow mass M according to the refrigerating agent containing oil flowing through first throttle mechanism observing and controlling parts 60₁Setting value adjust self operating frequency Rate, so that M₁Reach corresponding setting value；Frequency conversion high-pressure oil pump 32 adjusts self according to the setting value of the oil content X of refrigerating agent containing oil Operating frequency so that X reaches corresponding setting value；Assisted evaporative heat-exchanging component 86 is according to the first heat-exchanging component 43 entrance to be measured Refrigerant temperature T_CI1Setting value adjust primary heater 862 add heat, both ensured what assisted evaporative heat-exchanging component 86 exported Cold-producing medium met heat demand, also made refrigerant temperature T of the first heat-exchanging component 43 entrance to be measured_CI1Reach corresponding setting value；Auxiliary Help condensing heat-exchange assembly 46 according to the refrigerant pressure P of the first heat-exchanging component 43 entrance to be measured_CI1Setting value adjust self change Heat, so that P_CI1Reach corresponding setting value；Refrigerant temperature T that supercool control assembly 48 exports according to supercool control assembly 48_SO Setting value adjust self heat exchange amount, so that T_SOReach corresponding setting value；First auxiliary throttle mechanism assembly 62 is according to auxiliary The refrigerant pressure P of evaporation and heat-exchange assembly 86 outlet_EO2Adjust aperture, so that P_EO2Reach corresponding setting value.

Thus, the measured value of each duty parameter tends to and is stable at when Main Analysis object is condensing heat exchanger to be measured Duty parameter value is set.

A3: gather relevant duty parameter, and the stability of relevant duty parameter is judged.

When testing device and being in running order, the relevant duty parameter that data acquisition module 200 gathers A1 restriction is concurrent Giving control module 300, control module 300 carries out judgement of stability to relevant duty parameter, and for subsequent treatment.

For example, the judgment standard of stability can be: numerical value of sampling in every 30 seconds, in 10 minutes of continuous sampling, Deviation between measured value and the setting value of the refrigerant temperature of the first heat-exchanging component 43 entrance to be measured interval [-2.0 DEG C, 2.0 DEG C] in, the deviation between measured value and the setting value of other refrigerant temperatures is interior at interval [-0.3 DEG C, 0.3 DEG C], cold-producing medium pressure Deviation between measured value and the setting value of power is at interval [-30KPa, 30KPa], between measured value and the setting value of other parameters Percent deviation at interval [-1%, 1%].

A4, when relevant duty parameter all reaches steady statue, to duty parameter, cold-producing medium parameter and heat transferring medium parameter Measure, and calculate the heat transfer characteristic of condensing heat exchanger to be measured, pressure drop according to duty parameter, cold-producing medium parameter and heat transferring medium parameter Characteristic and outlet cold-producing medium mass dryness fraction.

Specifically, when main measurement analysis object is condensing heat exchanger to be measured, control module 300 can contain in line computation Oil rate X, and the mass flow of the cold-producing medium flowing through first throttle mechanism observing and controlling parts 60 is gathered by data acquisition module 200 M₁, refrigerant temperature T of the first heat-exchanging component 43 entrance to be measured_CI1, the refrigerant pressure of the first heat-exchanging component 43 entrance to be measured P_CI1, first heat-exchanging component 43 to be measured outlet refrigerant temperature T_CO1, first heat-exchanging component 43 to be measured outlet refrigerant pressure P_CO1, second inner tube 481 outlet refrigerant temperature T_SO, second inner tube 481 outlet refrigerant pressure P_SO, flow through first sleeve Volume flow m of the heat transferring medium of 462₁, the medium inlet temperature T of first sleeve 462₁, the media outlet temperature of first sleeve 462 Degree T₂, flow through volume flow m of the heat transferring medium of the second sleeve pipe 482₂, the medium inlet temperature T of the second sleeve pipe 482₃With the second set The medium outlet temperature T of pipe 482₄。

Then the heat exchange property i.e. heat exchange amount Q of condensing heat exchanger to be measured is calculated according to below equation₁:

Q₁=M₁[(1-X)(h_SO-h_CI1)+C₀X(T_SO-T_CI1)]-C[m₁(T₂-T₁)+m₂(T₄-T₃)],

h_SO=f₁(T_SO,P_SO),

h_CI1=f₂(T_CI1,P_CI1)；

And the pressure drop performance i.e. pressure drop Δ P1 of condensing heat exchanger to be measured is calculated by below equation:

Δ P1=P_CO1-P_CI1；

And outlet cold-producing medium mass dryness fraction χ of condensing heat exchanger to be measured is calculated by below equation₁:

χ₁=f₃(h_CO1,T_CO1,P_CO1), wherein,

According to one embodiment of present invention, when evaporating heat exchanger to be measured participates in kind of refrigeration cycle, condensing heat exchanger to be measured, First throttle mechanism to be measured and the second throttle mechanism to be measured are not involved in kind of refrigeration cycle, and control module 300 calculates according to below equation Refrigerating agent containing oil is by heat exchange amount during evaporating heat exchanger to be measured, pressure drop and cold-producing medium mass dryness fraction:

Q₂=(M₁+M₂)[(1-X)h_EO2+C₀XT_EO2]-(1-X)(M₁h_TI1+M₂h_TI2)-C₀M₁XT_TI1-C₀M₂XT_TI2-Q₀, its In, h_EO2=f₄(T_EO2,P_EO2), h_TI1=f₅(T_TI1,P_TI1), h_TI2=f₆(T_TI2,P_TI2)；

Δ P2=P_EO1-P_EI1；

Wherein, h_EIL=f₇(T_EI), h_EIG=f₈(T_EI)；

Wherein, Q₂For refrigerating agent containing oil by heat exchange amount during evaporating heat exchanger to be measured, Δ P2 is that refrigerating agent containing oil passes through Pressure drop during evaporating heat exchanger to be measured, χ₂For the cold-producing medium mass dryness fraction of evaporative heat exchanger inlet to be measured, M₁For flowing through first throttle mechanism The mass flow of the cold-producing medium of observing and controlling parts 60, M₂For flowing through the quality stream of the cold-producing medium of second throttle body observing and controlling parts 70 Amount, X is the oil content of refrigerating agent containing oil, h_EO2It is that the cold-producing medium of the 3rd inner tube 861 outlet is than enthalpy, h_EO2Characteristic with cold-producing medium And the 3rd inner tube 861 outlet refrigerant temperature T_EO2, the 3rd inner tube 861 outlet refrigerant pressure P_EO2Relevant, h_TI1It is The cold-producing medium of one throttle mechanism observing and controlling parts 60 entrance is than enthalpy, h_TI1Characteristic and the observing and controlling of first throttle mechanism with cold-producing medium Refrigerant temperature T of parts 60 entrance_TI1, the refrigerant pressure P of first throttle mechanism observing and controlling parts 60 entrance_TI1Relevant, h_TI2With Refrigerant property and refrigerant temperature T of second throttle body observing and controlling parts 70 entrance_TI2With second throttle body observing and controlling parts The refrigerant pressure P of 70 entrances_TI2Relevant, C₀For the specific heat capacity of refrigerator oil, Q₀For the heating power of primary heater 862, P_EO1 It is the refrigerant pressure of the second heat-exchanging component 84 to be measured outlet, h_EILFor evaporative heat exchanger inlet to be measured saturated liquid refrigerant ratio Enthalpy, h_EIGFor the saturated gaseous refrigerant of evaporative heat exchanger inlet to be measured than enthalpy, h_EILAnd h_EIGAll with the second heat-exchanging component to be measured Refrigerant temperature T of 84 entrances_EIRelevant.

In conjunction with the embodiment of Fig. 3, M₁Can be measured by the 3rd flow measuring probe 61 and obtain, M₂The 4th flow measurement can be passed through Device 74 is measured and is obtained, T_EO2Can be measured by the 9th temperature meter 871 and obtain, P_EO2Can be surveyed by the 9th pressometer 872 Measure, T_TI1Can be measured by the 3rd temperature meter 511 and obtain, P_TI1Can be measured by the 3rd pressometer 512 and obtain, T_TI2Can be measured by the 8th temperature meter 721 and obtain, P_TI2Can be measured by the 8th pressometer 722 and obtain, Q₀Can lead to Overpower measuring device measurement obtains, P_EO1Can be measured by the tenth pressometer 852 and obtain, T_EI1By the 11st temperature survey Device 831 is measured and is obtained.

Specifically, when main measurement analysis object is evaporating heat exchanger to be measured, evaporating heat exchanger to be measured participates in refrigeration Circulation, condensing heat exchanger to be measured, the first throttle mechanism to be measured and the second throttle mechanism to be measured are not involved in kind of refrigeration cycle, enable second Auxiliary throttle mechanism assembly 76, and control the 11st stop valve 71 open so that second auxiliary throttle mechanism assembly 76 entrance with The outlet of oil-gas mixer 41 is connected.The testing procedure of the device for measuring properties of the embodiment of the present invention is as follows:

B1: start test device, measure evaporating heat exchanger to be measured as relevant duty parameter during Main Analysis object.

When selecting evaporating heat exchanger to be measured to analyze object as main measurement, the relevant operating mode that control module 100 is measured Parameter includes: flow through the pure liquid flow mass M of the cold-producing medium of first throttle mechanism observing and controlling parts 60₁, flow through the second throttling machine The flow mass M of the pure gaseous refrigerant of structure observing and controlling parts 70₂, the oil content X of refrigerating agent containing oil, auxiliary condensing heat-exchange assembly 46 The refrigerant pressure P of entrance_CI2(the cold-producing medium pressure of the first heat-exchanging component 43 entrance to be measured that the i.e. first pressometer 422 is measured Power P_CI1), first auxiliary throttle mechanism assembly 62 entrance refrigerant temperature T_TI(the oil-containing that the i.e. the 3rd temperature meter 511 is measured Refrigerant temperature T of rate observing and controlling parts 90 entrance_TI1), the refrigerant pressure P of the second heat-exchanging component 84 entrance to be measured_EI1, in the 3rd Refrigerant temperature T of pipe 861 outlet i.e. assisted evaporative heat-exchanging component 86 outlet_EO2。

B2: be adjusted relevant duty parameter, so that duty parameter reaches steady statue.

Specifically, when selecting evaporating heat exchanger to be measured to analyze object as main measurement, frequency conversion refrigeration part 50 Pure liquid flow mass M according to the cold-producing medium flowing through first throttle mechanism observing and controlling parts 60₁Setting value adjust self operating Frequency, so that M₁Reach corresponding setting value；Second auxiliary throttle mechanism assembly 76 is according to flowing through second throttle body observing and controlling parts The flow mass M of the pure gaseous refrigerant of 70₂Setting value adjust aperture, so that M₂Reach corresponding setting value；Frequency conversion high-pressure oil pump 32 adjust the operating frequency of self according to the setting value of the oil content X of refrigerating agent containing oil, so that X reaches corresponding setting value；Auxiliary Condensing heat-exchange assembly 46 and supercool control assembly 48 are according to the refrigerant pressure P assisting condensing heat-exchange assembly 46 entrance_CI2Setting Value and refrigerant temperature T of the first auxiliary throttle mechanism assembly 62 entrance_TISetting value adjust self heat exchange amount, so that P_CI2 And T_TIReach corresponding setting value；First auxiliary throttle mechanism assembly 62 is according to the cold-producing medium pressure of the second heat-exchanging component 84 entrance to be measured Power P_EI1Setting value adjust aperture, so that P_EI1Reach corresponding setting value；Assisted evaporative heat-exchanging component 86 changes according to assisted evaporative Refrigerant temperature T of hot assembly 86 outlet_EO2Setting value adjust primary heater 862 add heat, so that T_EO2Reach corresponding Setting value.

Thus, the measured value of each duty parameter tends to and is stable at when Main Analysis object is evaporating heat exchanger to be measured Duty parameter value is set.

B3: gather relevant duty parameter, and the stability of relevant duty parameter is judged.

When testing device and being in running order, the relevant duty parameter that data acquisition module 200 gathers B1 restriction is concurrent Giving control module 300, control module 300 carries out judgement of stability to relevant duty parameter, and for subsequent treatment.

B4, when relevant duty parameter all reaches steady statue, to duty parameter, cold-producing medium parameter and electric parameter measurement, And calculate the heat transfer characteristic of evaporating heat exchanger to be measured, drooping characteristic and outlet according to duty parameter, cold-producing medium parameter and electrical quantity Cold-producing medium mass dryness fraction.

Specifically, when main measurement analysis object is evaporating heat exchanger to be measured, control module 300 can contain in line computation Oil rate X, and the mass flow of the cold-producing medium flowing through first throttle mechanism observing and controlling parts 60 is gathered by data acquisition module 200 M₁, flow through the flow mass M of the cold-producing medium of second throttle body observing and controlling parts 70₂, the 3rd inner tube 861 outlet refrigerant temperature T_EO2, the 3rd inner tube 861 outlet refrigerant pressure P_EO2, refrigerant temperature T of first throttle mechanism observing and controlling parts 60 entrance_TI1、 The refrigerant pressure P of first throttle mechanism observing and controlling parts 60 entrance_TI1, the cold-producing medium of second throttle body observing and controlling parts 70 entrance Temperature T_TI2, the refrigerant pressure P of second throttle body observing and controlling parts 70 entrance_TI2, second heat-exchanging component 84 to be measured outlet system Refrigerant pressure P_EO1Refrigerant temperature T with the second heat-exchanging component 84 entrance to be measured_EI1And the heating power of primary heater 862 Q₀。

Then the heat exchange property i.e. heat exchange amount Q of evaporating heat exchanger to be measured is calculated according to below equation₂:

Q₂=(M₁+M₂)[(1-X)h_EO2+C₀XT_EO2]-(1-X)(M₁h_TI1+M₂h_TI2)-C₀M₁XT_TI1-C₀M₂XT_TI2-Q₀,

h_EO2=f₄(T_EO2,P_EO2),

h_TI1=f₅(T_TI1,P_TI1),

h_TI2=f₆(T_TI2,P_TI2)；

And the pressure drop performance i.e. pressure drop Δ P2 of evaporating heat exchanger to be measured is calculated by below equation:

Δ P2=P_EO1-P_EI1；

And entrance cold-producing medium mass dryness fraction χ of evaporating heat exchanger to be measured is calculated by below equation₂:

${\mathrm{\χ}}_2=\frac{(M1h_{TI1}+M2h_{TI2})(1-X)+{\mathrm{XC}}_0(M1T_{TI1}+M2T_{TI2})-(M1+M2)\[(1-X)h_{EIL}+{\mathrm{XC}}_0{T}_{EI}\]}{(h_{EIL}-h_{EIG})(M1+M2)(1-X)},$

h_EIL=f₇(T_EI), h_EIG=f₈(T_EI)。

According to one embodiment of present invention, when the first throttle mechanism to be measured participates in kind of refrigeration cycle, condensing heat-exchange to be measured Device, evaporating heat exchanger to be measured and the second throttle mechanism to be measured and the first auxiliary throttle mechanism assembly 62 and the second auxiliary throttling Mechanism assembly 76 is not involved in kind of refrigeration cycle, and control module 300 calculates refrigerating agent containing oil by the first joint to be measured according to below equation Discharge coefficient during stream mechanism:

$C_{D1}=\frac{M_1}{A_1\sqrt{2{\mathrm{\ρ}}_2(P_{TI1}-P_{TO1})}}$

Wherein, C_D1For refrigerating agent containing oil by discharge coefficient during the first throttle mechanism to be measured, M₁For flowing through first throttle The mass flow of the cold-producing medium of mechanism's observing and controlling parts 60, A₁It is the circulation area of the first throttle mechanism to be measured, ρ₂For flowing through first segment The density of the cold-producing medium of stream mechanism observing and controlling parts 60, P_TI1For the refrigerant pressure of first throttle mechanism observing and controlling parts 60 entrance, P_TO1Refrigerant pressure for observing and controlling parts 60 outlet of first throttle mechanism.

In conjunction with the embodiment of Fig. 3, M₁Can be measured by the 3rd flow measuring probe 61 and obtain, ρ₂The second density measure can be passed through Device 52 is measured and is obtained, P_TI1Can be measured by the 3rd pressometer 512 and obtain, P_TO1Can be surveyed by the 4th pressometer 641 Measure.It addition, ρ₂Also can be measured by the first dasymeter 92 and obtain, i.e. say ρ₂And ρ₁Same dasymeter can be used Measure.

Specifically, when main measurement analysis object is the first throttle mechanism to be measured, the first throttle mechanism to be measured participates in Kind of refrigeration cycle, condensing heat exchanger to be measured, evaporating heat exchanger to be measured and the second throttle mechanism to be measured are not involved in kind of refrigeration cycle, the most not Enable the first auxiliary throttle mechanism assembly 62 and the second auxiliary throttle mechanism assembly 76.The device for measuring properties of the embodiment of the present invention Testing procedure as follows:

C1: start test device, measures the first throttle mechanism to be measured as relevant duty parameter during Main Analysis object.

When selecting the first throttle mechanism to be measured to analyze object as main measurement, the relevant work that control module 100 is measured Condition parameter includes: the oil content X of refrigerating agent containing oil, refrigerant temperature T of first throttle mechanism observing and controlling parts 60 entrance_TI1, first The refrigerant pressure P of throttle mechanism observing and controlling parts 60 entrance_TI1, the refrigerant pressure of first throttle mechanism observing and controlling parts 60 outlet P_TO1And the 3rd inner tube 861 outlet i.e. assisted evaporative heat-exchanging component 86 outlet refrigerant temperature T_EO2。

C2: be adjusted relevant duty parameter, so that duty parameter reaches steady statue.

Specifically, when selecting the first throttle mechanism to be measured to analyze object as main measurement, frequency conversion refrigeration part 50 Refrigerant pressure P according to observing and controlling parts 60 outlet of first throttle mechanism_TO1Setting value adjust self operating frequency so that P_TO1Reach corresponding setting value；Frequency conversion high-pressure oil pump 32 adjusts the operating of self according to the setting value of the oil content X of refrigerating agent containing oil Frequency, so that X reaches corresponding setting value；Auxiliary condensing heat-exchange assembly 46 is surveyed according to first throttle mechanism with supercool control assembly 48 Refrigerant temperature T of control parts 60 entrance_TI1Setting value and the refrigerant pressure of first throttle mechanism observing and controlling parts 60 entrance P_TI1Setting value adjust self heat exchange amount, so that T_TI1And P_TI1Reach corresponding setting value；Assisted evaporative heat-exchanging component 86 basis Refrigerant temperature T of assisted evaporative heat-exchanging component 86 outlet_EO2Setting value adjust primary heater 862 add heat so that T_EO2Reach corresponding setting value.

Thus, the measured value of each duty parameter tends to and is stable at when Main Analysis object is the first throttle mechanism to be measured Time duty parameter value is set.

C3: gather relevant duty parameter, and the stability of relevant duty parameter is judged.

When testing device and being in running order, the relevant duty parameter that data acquisition module 200 gathers C1 restriction is concurrent Giving control module 300, control module 300 carries out judgement of stability to relevant duty parameter, and for subsequent treatment.

C4: when relevant duty parameter all reaches steady statue, measures duty parameter and cold-producing medium parameter, and root The discharge characteristic of the first throttle mechanism to be measured is calculated according to duty parameter and cold-producing medium parameter.

Specifically, when main measurement analysis object is the first throttle mechanism to be measured, control module 300 can be in line computation Oil content X, and the quality stream of the cold-producing medium flowing through first throttle mechanism observing and controlling parts 60 is gathered by data acquisition module 200 Amount M₁, flow through the density p of the cold-producing medium of first throttle mechanism observing and controlling parts 60₂, the system of first throttle mechanism observing and controlling parts 60 entrance Refrigerant pressure P_TI1, the refrigerant pressure P of first throttle mechanism observing and controlling parts 60 outlet_TO1。

Then control module 300 calculates the first throttle mechanism to be measured flow system when cold-producing medium passes through according to below equation Number:

$C_{D1}=\frac{M_1}{A_1\sqrt{2{\mathrm{\ρ}}_1(P_{TI1}-P_{TO1})}}.$

According to one embodiment of present invention, when the second throttle mechanism to be measured participates in kind of refrigeration cycle, condensing heat-exchange to be measured Device, evaporating heat exchanger to be measured and the first throttle mechanism to be measured and the second auxiliary throttle mechanism assembly 76 are not involved in kind of refrigeration cycle, When gaseous refrigerant or gas-liquid two-phase state cold-producing medium are by the second throttle mechanism to be measured, control module 300 is according to below equation Calculate refrigerating agent containing oil by discharge coefficient during the second throttle mechanism to be measured:

$C_{D2}=\frac{M_2}{A_2\sqrt{2{\mathrm{\ρ}}_3(P_{TI2}-P_{TO2})}}$

Wherein, C_D2For refrigerating agent containing oil by discharge coefficient during the second throttle mechanism to be measured, M₂For flowing through the second throttling The mass flow of the cold-producing medium of mechanism's observing and controlling parts 70, A₂It is the circulation area of the second throttle mechanism to be measured, ρ₃For flowing through second section The density of the cold-producing medium of stream mechanism observing and controlling parts 70, P_TI2For the refrigerant pressure of second throttle body observing and controlling parts 70 entrance, P_TO2Refrigerant pressure for the outlet of second throttle body observing and controlling parts 70.

In conjunction with the embodiment of Fig. 3, M₂Can by the 4th flow measuring probe 74 measure obtain, ρ₃Can be measured by triple density Device 73 measurement obtains, P_TI2Can by the 8th pressometer 722 measure obtain, P_TO2Can be surveyed by the 5th pressometer 771 Measure.

Specifically, when main measurement analysis object is the second throttle mechanism to be measured, the second throttle mechanism to be measured participates in During kind of refrigeration cycle, condensing heat exchanger to be measured, evaporating heat exchanger to be measured and the first throttle mechanism to be measured are not involved in kind of refrigeration cycle, simultaneously Do not enable the second auxiliary throttle mechanism assembly 76.The testing procedure of the device for measuring properties of the embodiment of the present invention is as follows:

D1: start test device, measures the second throttle mechanism to be measured as relevant duty parameter during Main Analysis object.

When selecting the second throttle mechanism to be measured to analyze object as main measurement, if studying full gaseous state refrigerating agent containing oil By flow performance during the second throttle mechanism to be measured, then control the 11st stop valve 71 and open so that the second throttle mechanism to be measured The entrance of assembly 75 and the outlet connection of oil-gas mixer 41, be full gaseous state by the cold-producing medium of the second throttle mechanism to be measured and contain Oil cold-producing medium.Now, the relevant duty parameter that control module 100 is measured includes: refrigerating agent containing oil oil content X, the second joint to be measured The refrigerant pressure i.e. refrigerant pressure P of second throttle body observing and controlling parts 70 entrance of stream mechanism assembly 75 entrance_TI2, second Refrigerant temperature T of inner tube 481 outlet the most supercool control assembly 48 outlet_SO, second throttle mechanism assembly 75 to be measured outlet system The refrigerant pressure P of refrigerant pressure i.e. second throttle body observing and controlling parts 70 outlet_TO2, the 3rd inner tube 861 i.e. assisted evaporative of outlet Refrigerant temperature T of heat-exchanging component 86 outlet_EO2。

If research gas-liquid two-phase refrigerating agent containing oil is by flow performance during the second throttle mechanism to be measured, then control the 6th Stop valve 72 is opened so that the entrance of the second throttle mechanism assembly 75 to be measured is connected with the outlet of auxiliary condensing heat-exchange assembly 46, logical The cold-producing medium crossing the second throttle mechanism to be measured is gas-liquid two-phase refrigerating agent containing oil.Now, the relevant work that control module 100 is measured Condition parameter includes: refrigerating agent containing oil oil content X, the refrigerant pressure that is second of the second throttle mechanism assembly 75 entrance to be measured throttle The refrigerant pressure P of mechanism's observing and controlling parts 70 entrance_TI2, cold-producing medium mass dryness fraction χ of the second throttle mechanism entrance to be measured₃, the second inner tube Refrigerant temperature T of 481 outlet the most supercool control assembly 48 outlet_SO, second throttle mechanism assembly 75 to be measured outlet cold-producing medium The refrigerant pressure P of pressure i.e. second throttle body observing and controlling parts 70 outlet_TO2, the 3rd inner tube 861 i.e. assisted evaporative heat exchange of outlet Refrigerant temperature T of assembly 86 outlet_EO2。

Concrete, according to one embodiment of present invention, the refrigerant pressure system that the first heat-exchanging component 43 to be measured is exported Refrigerant temperature is respectively as the refrigerant pressure of the first inner tube 461 entrance and refrigerant temperature, when gas-liquid two-phase state cold-producing medium leads to When crossing the second throttle mechanism to be measured, control module 300 calculates the cold-producing medium mass dryness fraction of the second throttle mechanism to be measured according to below equation:

χ₃=f₉(h_TI2,T_TI2,P_TI2),

$h_{TI2}=\frac{(M_1+M_2)\[h_{CI2}(1-X)+{\mathrm{XC}}_0(T_{CI2}-T_{TI2})\]-(T_2-T_1){\mathrm{Cm}}_1}{(M_1+M_2)(1-X)},$

Wherein, χ₃It is the cold-producing medium mass dryness fraction of the second throttle mechanism entrance to be measured, h_TI2For second throttle body observing and controlling parts 70 The cold-producing medium of entrance is than enthalpy, h_TI2With refrigerant property and the refrigerant temperature of second throttle body observing and controlling component entry 70 T_TI2Refrigerant pressure P with second throttle body observing and controlling component entry 70_TI2Relevant, M₁For flowing through observing and controlling portion of first throttle mechanism The mass flow of the cold-producing medium of part 60, M₂For flowing through the mass flow of the cold-producing medium of second throttle body observing and controlling parts 70, h_CI2For The cold-producing medium of the first inner tube 461 entrance is than enthalpy, h_CI2With refrigerant property and the refrigerant temperature of the first inner tube 461 entrance T_CI2Refrigerant pressure P with the first inner tube 461 entrance_CI2Relevant, X is the oil content of cold-producing medium, C₀Specific heat for refrigerator oil Holding, C is the specific heat capacity of heat transferring medium, m₁For flowing through the volume flow of the heat transferring medium of first sleeve 461, T₁For first sleeve 461 Medium inlet temperature, T₂Medium outlet temperature for first sleeve 461.

In conjunction with the embodiment of Fig. 3, T_TI2Can by the 8th temperature meter 721 measure obtain, P_TI2Surveyed by the 8th pressure Measuring device 722 measurement obtains, M₁Can by the 3rd flow measuring probe 61 measure obtain, M₂Can be measured by the 4th flow measuring probe 74 Obtain, T_CI2Can by second temperature meter 441 measure obtain, P_CI2Can be obtained by the second surging measuring device 442 measurement, m₁Can by first flow measuring device 467 measure obtain, T₁Can by the 4th temperature meter 465 measure obtain, T₂Can be by the Five temperature meters 466 are measured and are obtained.

Specifically, when gas-liquid two-phase state cold-producing medium is by the second throttle mechanism to be measured, control module 300 can be by number Refrigerant temperature T of second throttle body observing and controlling component entry 70 is gathered according to acquisition module 200_TI2, second throttle body observing and controlling portion The refrigerant pressure P of part entrance 70_TI2, flow through the flow mass M of the cold-producing medium of first throttle mechanism observing and controlling parts 60₁, flow through The flow mass M of the cold-producing medium of two throttle mechanism observing and controlling parts 70₂, refrigerant temperature T of the first inner tube 461 entrance_CI2, first The refrigerant pressure P of inner tube 461 entrance_CI2, flow through volume flow m of the heat transferring medium of first sleeve 461₁, first sleeve 461 Medium inlet temperature T₁And the medium outlet temperature T of first sleeve 461₂。

Then, control module 300 calculates the cold-producing medium mass dryness fraction of the second throttle mechanism entrance to be measured according to below equation:

χ₃=f₉(h_TI2,T_TI2,P_TI2),

$h_{TI2}=\frac{(M_1+M_2)\[h_{CI2}(1-X)+{\mathrm{XC}}_0(T_{CI2}-T_{TI2})\]-(T_2-T_1){\mathrm{Cm}}_1}{(M_1+M_2)(1-X)}$

D2: be adjusted relevant duty parameter, so that duty parameter reaches steady statue.

Specifically, when studying flow performance when full gaseous state refrigerating agent containing oil passes through the second throttle mechanism to be measured, become Frequently the cold-producing medium pressure that refrigeration part 50 and the first auxiliary throttle mechanism assembly 62 export according to the second throttle mechanism assembly 62 to be measured Power P_TO2Setting value adjust self operating frequency, so that P_TO2Reach corresponding setting value；Frequency conversion high-pressure oil pump 32 is according to oil-containing The setting value of the oil content X of cold-producing medium adjusts the operating frequency of self, so that X reaches corresponding setting value；Auxiliary condensing heat-exchange group Part 46 and supercool control assembly 48 are according to the refrigerant pressure P of the second throttle mechanism assembly 75 entrance to be measured_TI2Setting value and mistake Refrigerant temperature T of cold control assembly 48 outlet_SOSetting value adjust self heat exchange amount, so that P_TI2And T_SOReach correspondence to set Definite value；Refrigerant temperature T that assisted evaporative heat-exchanging component 86 exports according to assisted evaporative heat-exchanging component 86_EO2Setting value adjust Primary heater 862 add heat, so that T_EO2Reach corresponding setting value.

Thus, the measured value of each duty parameter tends to and is stable at when Main Analysis object is full gaseous state refrigerating agent containing oil By duty parameter during the second throttle mechanism to be measured, value is set.

When studying flow performance when gas-liquid two-phase refrigerating agent containing oil passes through the second throttle mechanism to be measured, frequency conversion refrigeration section The refrigerant pressure P that part 50 and the first auxiliary throttle mechanism assembly 62 export according to the second throttle mechanism assembly 62 to be measured_TO2Set Definite value adjusts the operating frequency of self, so that P_TO2Reach corresponding setting value；Frequency conversion high-pressure oil pump 32 containing according to refrigerating agent containing oil The setting value of oil rate X adjusts the operating frequency of self, so that X reaches corresponding setting value；Auxiliary condensing heat-exchange assembly 46 is with supercool Control the assembly 48 refrigerant pressure P according to the second throttle mechanism assembly 75 entrance to be measured_TI2Setting value, supercool control assembly Refrigerant temperature T of 48 outlets_SOSetting value and cold-producing medium mass dryness fraction χ of the second throttle mechanism entrance to be measured₃Setting value adjust Self heat exchange amount whole, so that P_TI2、T_SOAnd χ₃Reach corresponding setting value；Assisted evaporative heat-exchanging component 86 changes according to assisted evaporative Refrigerant temperature T of hot assembly 86 outlet_EO2Setting value adjust primary heater 862 add heat, so that T_EO2Reach corresponding Setting value.

Thus, the measured value of each duty parameter tends to and is stable at when Main Analysis object is gas-liquid two-phase oil-containing refrigeration Agent arranges value by duty parameter during the second throttle mechanism to be measured.

D3: gather relevant duty parameter, and the stability of relevant duty parameter is judged.

When testing device and being in running order, the relevant duty parameter that data acquisition module 200 gathers D1 restriction is concurrent Giving control module 300, control module 300 carries out judgement of stability to relevant duty parameter, and for subsequent treatment.

C4: when relevant duty parameter all reaches steady statue, measures duty parameter and cold-producing medium parameter, and root The discharge characteristic of the second throttle mechanism to be measured is calculated according to duty parameter and cold-producing medium parameter.

Specifically, when main measurement analysis object is the second throttle mechanism to be measured, control module 300 can be in line computation Oil content X, and the quality stream of the cold-producing medium flowing through second throttle body observing and controlling parts 70 is gathered by data acquisition module 200 Amount M₂, flow through the density p of the cold-producing medium of second throttle body observing and controlling parts 70₃, the system of second throttle body observing and controlling parts 70 entrance Refrigerant pressure P_TI2, second throttle body observing and controlling parts 70 outlet refrigerant pressure P_TO2。

Then control module 300 calculates the second throttle mechanism to be measured at gaseous state or gas-liquid two-phase cold-producing medium according to below equation By time discharge coefficient:

$C_{D2}=\frac{M_2}{A_2\sqrt{2{\mathrm{\ρ}}_2(P_{TI2}-P_{TO2})}}.$

To sum up, the measurement apparatus for studying refrigerating agent containing oil characteristic proposed according to the present invention, by control module pair Data collecting module collected to the stability of duty parameter judge, and when judging that duty parameter is in steady statue, Oil content and the oil-containing refrigeration of refrigerating agent containing oil is calculated according to duty parameter, cold-producing medium parameter, heat transferring medium parameter and electrical quantity Agent is by performance during device under test such that it is able to accurately test and analyze oil content and the oil-containing refrigeration calculating refrigerating agent containing oil Agent is by performance such as heat exchange property, the flow performance etc. during device under test, for exploitation and the efficiency upgrading of associated refrigeration equipment Research offers precise data, and the cost efficiency etc. for heat exchanger, throttle mechanism provides strong support and help, and this dress Putting testing efficiency higher, range of application is bigger.

The embodiment of the present invention also proposed the measuring method of a kind of measurement apparatus for studying refrigerating agent containing oil characteristic.

Fig. 4 is the stream of the measuring method of the measurement apparatus for studying refrigerating agent containing oil characteristic according to embodiments of the present invention Cheng Tu.Installing device under test in the measurement apparatus for studying refrigerating agent containing oil characteristic, as shown in Figure 4, method includes following Step:

S1: for studying when the measurement apparatus of refrigerating agent containing oil characteristic starts the operating mode ginseng under plant running state Number, cold-producing medium parameter, heat transferring medium parameter and electrical quantity measure, and are adjusted duty parameter.

S2: gather duty parameter, cold-producing medium parameter, heat transferring medium parameter and electrical quantity.

S3: the stability of the duty parameter collecting data acquisition module judges, and judging at duty parameter When steady statue, calculate the oil-containing of refrigerating agent containing oil according to duty parameter, cold-producing medium parameter, heat transferring medium parameter and electrical quantity Rate and refrigerating agent containing oil are by performance during device under test.

According to one embodiment of present invention, device under test include condensing heat exchanger to be measured, evaporating heat exchanger to be measured, first Throttle mechanism to be measured and the second throttle mechanism to be measured, wherein, when device under test is condensing heat exchanger to be measured or evaporation and heat-exchange to be measured During device, refrigerating agent containing oil includes the heat exchange amount of device under test, the pressure drop of device under test and refrigeration by performance during device under test Agent mass dryness fraction；When device under test is the first throttling to be measured or the second throttle mechanism to be measured, when refrigerating agent containing oil is by device under test Performance include the discharge coefficient of device under test.

According to one embodiment of present invention, control module includes frequency conversion refrigeration part, condensing heat-exchange observing and controlling parts, oil-containing Rate observing and controlling parts, first throttle mechanism observing and controlling parts, second throttle body observing and controlling parts and evaporation and heat-exchange observing and controlling parts.

Further, according to one embodiment of present invention, frequency conversion refrigeration part include frequency conversion cooling assembly, separating of oil group Part, fuel feeding assembly and and oil-gas mixer, the measuring method for the measurement apparatus of studying refrigerating agent containing oil characteristic also includes: After calculating the oil content of refrigerating agent containing oil, regulate fuel feeding assembly supply oil-gas mixer according to the oil content of oil-containing cryogen processed Fuel delivery so that the oil content of refrigerating agent containing oil reach set oil content.

According to one embodiment of present invention, the first heat-exchanging component to be measured during duty parameter includes condensing heat-exchange observing and controlling parts The refrigerant temperature of entrance, the refrigerant pressure of the first heat-exchanging component entrance to be measured, the refrigeration of the first heat-exchanging component to be measured outlet Agent temperature and the refrigerant pressure of the first heat-exchanging component to be measured outlet；Heat transferring medium parameter includes flowing through condensing heat-exchange observing and controlling parts The specific heat capacity of heat transferring medium, density and the volume flow of first sleeve of middle auxiliary condensing heat-exchange assembly, the medium of first sleeve Inlet temperature, the medium outlet temperature of first sleeve, flow through the second sleeve pipe of supercool control assembly in condensing heat-exchange observing and controlling parts The specific heat capacity of heat transferring medium, density and volume flow, the medium inlet temperature of the second sleeve pipe and the media outlet of the second sleeve pipe Temperature.

Further, cold-producing medium parameter includes temperature and the density flowing through the cold-producing medium of oil content observing and controlling parts.

Further, duty parameter also includes that the refrigerant pressure of first throttle mechanism observing and controlling component entry flows through described first segment The mass flow of the cold-producing medium of stream mechanism observing and controlling parts and the refrigerant pressure of first throttle mechanism observing and controlling knockdown export, cold-producing medium Parameter also includes the density flowing through the cold-producing medium of first throttle mechanism observing and controlling parts.

Further, duty parameter also included the mass flow of cold-producing medium of described second throttle body observing and controlling parts, second The refrigerant temperature of throttle mechanism observing and controlling component entry, the refrigerant pressure and second of second throttle body observing and controlling component entry The refrigerant pressure of throttle mechanism observing and controlling knockdown export；Cold-producing medium parameter also includes the system flowing through second throttle body observing and controlling parts The density of cryogen.

Further, the 3rd inner tube outlet of assisted evaporative heat-exchanging component during duty parameter also includes evaporation and heat-exchange observing and controlling parts In refrigerant temperature, the refrigerant pressure of the 3rd inner tube outlet, evaporation and heat-exchange observing and controlling parts the first of assisted evaporative heat-exchanging component The refrigerant temperature of the second heat-exchanging component to be measured outlet in the heating power of heater, evaporation and heat-exchange observing and controlling parts, second to be measured Refrigerant pressure, the refrigerant temperature of the second heat-exchanging component entrance to be measured and second heat-exchanging component to be measured of heat-exchanging component outlet enter The refrigerant pressure of mouth；Electrical quantity includes the heating power of primary heater.

Specifically, according to one embodiment of present invention, can be according to the oil content of below equation calculating refrigerating agent containing oil:

X=a ρ₁+b·T³+c·T²+d·T+e

Wherein, X is the oil content of refrigerating agent containing oil, ρ₁For flowing through the density of the cold-producing medium of oil content observing and controlling parts, T is stream Cross the refrigerant temperature of oil content observing and controlling parts, a, b, c, d, e be constant and the combination variety according to coolant and refrigerator oil true Fixed.

Specifically, according to one embodiment of present invention, by the refrigerant temperature of first throttle mechanism observing and controlling component entry With refrigerant pressure respectively as the refrigerant temperature of the second inner tube outlet of control assembly supercool in condensing heat-exchange observing and controlling parts And refrigerant pressure, when condensing heat exchanger to be measured participate in kind of refrigeration cycle time, evaporating heat exchanger to be measured, the first throttle mechanism to be measured and Second auxiliary throttle mechanism assembly of the second throttle mechanism to be measured and second throttle body observing and controlling parts is not involved in kind of refrigeration cycle, Refrigerating agent containing oil is calculated by heat exchange amount during condensing heat exchanger to be measured, pressure drop and cold-producing medium mass dryness fraction according to below equation:

Q₁=M₁[(1-X)(h_SO-h_CI1)+C₀X(T_SO-T_CI1)]-C[m₁(T₂-T₁)+m₂(T₄-T₃)]；

Δ P1=P_CO1-P_CI1；

χ₁=f₃(h_CO1,T_CO1,P_CO1), wherein,

Wherein, Q₁For refrigerating agent containing oil by heat exchange amount during condensing heat exchanger to be measured, Δ P1 is that refrigerating agent containing oil passes through Pressure drop during condensing heat exchanger to be measured, χ₁The cold-producing medium mass dryness fraction exported for condensing heat exchanger to be measured, M₁For flowing through first throttle mechanism The mass flow of the cold-producing medium of observing and controlling parts, X is the oil content of refrigerating agent containing oil, h_SOIt it is the cold-producing medium specific enthalpy of the second inner tube outlet Value, h_SOCharacteristic and refrigerant temperature T of the second inner tube outlet with cold-producing medium_SO, the refrigerant pressure P of the second inner tube outlet_SO Relevant, h_CI1It is that the cold-producing medium of the first heat-exchanging component entrance to be measured is than enthalpy, h_CI1To be measured with the characteristic of cold-producing medium and first change Refrigerant temperature T of hot module inlet_CI1, the refrigerant pressure P of the first heat-exchanging component entrance to be measured_CI1Relevant, C₀For fridge The specific heat capacity of oil, C is the specific heat capacity of heat transferring medium, m₁For flowing through the volume flow of the heat transferring medium of first sleeve, T₁For first set The medium inlet temperature of pipe, T₂For the medium outlet temperature of first sleeve, m₂For flowing through the volume flow of the heat transferring medium of the second sleeve pipe Amount, T₃It is the medium inlet temperature of the second sleeve pipe, T₄It is the medium outlet temperature of the second sleeve pipe, h_CO1It it is the first heat-exchanging component to be measured The cold-producing medium of outlet is than enthalpy, h_CO1Refrigerant temperature T of heat-exchanging component to be measured with the characteristic of cold-producing medium and first outlet_CO1, The refrigerant pressure P of the first heat-exchanging component to be measured outlet_CO1Relevant.

Specifically, according to one embodiment of present invention, when evaporating heat exchanger to be measured participates in kind of refrigeration cycle, condensation to be measured Heat exchanger, the first throttle mechanism to be measured and the second throttle mechanism to be measured are not involved in kind of refrigeration cycle, calculate oil-containing according to below equation Cold-producing medium is by heat exchange amount during evaporating heat exchanger to be measured, pressure drop and cold-producing medium mass dryness fraction:

Q₂=(M₁+M₂)[(1-X)h_EO2+C₀XT_EO2]-(1-X)(M₁h_TI1+M₂h_TI2)-C₀M₁XT_TI1-C₀M₂XT_TI2-Q₀；

Δ P2=P_EO1-P_EI1；

${\mathrm{\χ}}_2=\frac{(M1h_{TI1}+M2h_{TI2})(1-X)+{\mathrm{XC}}_0(M1T_{TI1}+M2T_{TI2})-(M1+M2)\[(1-X)h_{EIL}+{\mathrm{XC}}_0{T}_{EI}\]}{(h_{EIL}-h_{EIG})(M1+M2)(1-X)};$

Wherein, Q₂For refrigerating agent containing oil by heat exchange amount during evaporating heat exchanger to be measured, Δ P2 is that refrigerating agent containing oil passes through The pressure drop that evaporating heat exchanger to be measured is out-of-date, χ₂For the cold-producing medium mass dryness fraction of evaporative heat exchanger inlet to be measured, M₁For flowing through first throttle machine The mass flow of the cold-producing medium of structure observing and controlling parts, M₂For flowing through the mass flow of the cold-producing medium of second throttle body observing and controlling parts, X For the oil content of refrigerating agent containing oil, h_EO2It is that the cold-producing medium of the 3rd inner tube outlet is than enthalpy, h_EO2Characteristic and with cold-producing medium Refrigerant temperature T of three inner tube outlet_EO2, the refrigerant pressure P of the 3rd inner tube outlet_EO2Relevant, h_TI1Survey for first throttle mechanism The cold-producing medium of control component entry is than enthalpy, h_TI1Characteristic and the refrigeration of first throttle mechanism observing and controlling component entry with cold-producing medium Agent temperature T_TI1, the refrigerant pressure P of first throttle mechanism observing and controlling component entry_TI1Relevant, h_TI2With refrigerant property and second Refrigerant temperature T of throttle mechanism observing and controlling component entry_TI2Refrigerant pressure P with second throttle body observing and controlling component entry_TI2 Relevant, C₀For the specific heat capacity of refrigerator oil, Q₀For the heating power of primary heater, P_EO1It it is the second heat-exchanging component to be measured outlet Refrigerant pressure, h_EILFor the saturated liquid refrigerant of evaporative heat exchanger inlet to be measured than enthalpy, h_EIGEvaporative heat exchanger inlet to be measured Saturated gaseous refrigerant is than enthalpy, h_EILAnd h_EIGAll with refrigerant temperature T of the second heat-exchanging component entrance to be measured_EI1Relevant.

Specifically, according to one embodiment of present invention, when the first throttle mechanism to be measured participates in kind of refrigeration cycle, to be measured cold Coagulate first in heat exchanger, evaporating heat exchanger to be measured and the second throttle mechanism to be measured and first throttle mechanism observing and controlling parts auxiliary The in throttle mechanism assembly and second throttle body observing and controlling parts second auxiliary throttle mechanism assembly is helped to be not involved in kind of refrigeration cycle, root Refrigerating agent containing oil is calculated by discharge coefficient during the first throttle mechanism to be measured according to below equation:

$C_{D1}=\frac{M_1}{A_1\sqrt{2{\mathrm{\ρ}}_2(P_{TI1}-P_{TO1})}}$

Wherein, C_D1For refrigerating agent containing oil by discharge coefficient during the first throttle mechanism to be measured, M₁For flowing through first throttle The mass flow of the cold-producing medium of mechanism's observing and controlling parts, A₁It is the circulation area of the first throttle mechanism to be measured, ρ₂For flowing through first throttle The density of the cold-producing medium of mechanism's observing and controlling parts, P_TI1For the refrigerant pressure of first throttle mechanism observing and controlling component entry, P_TO1It is The refrigerant pressure of one throttle mechanism observing and controlling knockdown export.

Specifically, according to one embodiment of present invention, when the second throttle mechanism to be measured participates in kind of refrigeration cycle, to be measured cold Coagulate second in heat exchanger, evaporating heat exchanger to be measured and the first throttle mechanism to be measured and second throttle body observing and controlling parts auxiliary Throttle mechanism assembly is helped to be not involved in kind of refrigeration cycle, when gaseous refrigerant or gas-liquid two-phase state cold-producing medium are by the second throttling machine to be measured During structure, calculate refrigerating agent containing oil by discharge coefficient during the second throttle mechanism to be measured according to below equation:

$C_{D2}=\frac{M_2}{A_2\sqrt{2{\mathrm{\ρ}}_3(P_{TI2}-P_{TO2})}}$

Wherein, C_D2For refrigerating agent containing oil by discharge coefficient during the second throttle mechanism to be measured, M₂For flowing through the second throttling The mass flow of the cold-producing medium of mechanism's observing and controlling parts, A₂It is the circulation area of the second throttle mechanism to be measured, ρ₃For flowing through the second throttling The density of the cold-producing medium of mechanism's observing and controlling parts, P_TI2For the refrigerant pressure of second throttle body observing and controlling component entry, P_TO2It is The refrigerant pressure of two throttle mechanism observing and controlling knockdown exports.

Specifically, according to one embodiment of present invention, by the refrigerant pressure refrigeration of the first heat-exchanging component to be measured outlet Agent temperature is respectively as the refrigerant pressure of the first inner tube inlet and refrigerant temperature, when gas-liquid two-phase state cold-producing medium is by second During throttle mechanism to be measured, the cold-producing medium mass dryness fraction of the second throttle mechanism to be measured can be calculated according to below equation:

χ₃=f₉(h_TI2,T_TI2,P_TI2),

$h_{TI2}=\frac{(M_1+M_2)\[h_{CI2}(1-X)+{\mathrm{XC}}_0(T_{CI2}-T_{TI2})\]-(T_2-T_1){\mathrm{Cm}}_1}{(M_1+M_2)(1-X)},$

Wherein, χ₃It is the cold-producing medium mass dryness fraction of the second throttle mechanism entrance to be measured, h_TI2Enter for second throttle body observing and controlling parts The cold-producing medium of mouth is than enthalpy, h_TI2With refrigerant property and refrigerant temperature T of second throttle body observing and controlling component entry_TI2With The refrigerant pressure P of second throttle body observing and controlling component entry_TI2Relevant, M₁For flowing through the system of first throttle mechanism observing and controlling parts The mass flow of cryogen, M₂For flowing through the mass flow of the cold-producing medium of second throttle body observing and controlling parts, h_CI2It is that the first inner tube enters The cold-producing medium of mouth is than enthalpy, h_CI2With refrigerant property and refrigerant temperature T of the first inner tube inlet_CI2With the first inner tube inlet Refrigerant pressure P_CI2Relevant, X is the oil content of cold-producing medium, C₀For the specific heat capacity of refrigerator oil, C is the specific heat of heat transferring medium Hold, m₁For flowing through the volume flow of the heat transferring medium of first sleeve, T₁For the medium inlet temperature of first sleeve, T₂For first set The medium outlet temperature of pipe.

Specifically, as it is shown in figure 5, the survey of measurement apparatus for studying refrigerating agent containing oil characteristic of the embodiment of the present invention Metering method comprises the following steps:

S101: install heat exchanger to be measured and/or throttling to be measured in the measurement apparatus for studying refrigerating agent containing oil characteristic Mechanism.

S102: start test device, selects main measurement to analyze object, and measures relevant duty parameter.

S103: duty parameter is adjusted.

S104: the duty parameter collected, and the stability of the duty parameter collected is judged.

S105: when judging that duty parameter is in steady statue, according to duty parameter, cold-producing medium parameter, heat transferring medium ginseng Number and electrical quantity calculate refrigerating agent containing oil and analyze the performance such as heat transfer characteristic, pressure during object by the main measurement that user selects Drop characteristic or discharge characteristic.

It should be noted that duty parameter to be adjusted such that duty parameter reaches the specific implementation of steady statue Describe in detail in device embodiment above, be in succinct purpose here, repeat the most one by one.

To sum up, according to the measuring method of the measurement apparatus for studying refrigerating agent containing oil characteristic that the present invention proposes, logarithm The stability of the duty parameter collected according to acquisition module judges, and when judging that duty parameter is in steady statue, root According to duty parameter, cold-producing medium parameter, heat transferring medium parameter and electrical quantity calculating cold-producing medium by performance during device under test, thus Can accurately test and analyze cold-producing medium to be upgraded by performance during device under test, exploitation and efficiency for associated refrigeration equipment Research offers precise data, and the method testing efficiency is higher, and range of application is bigger.

In describing the invention, it is to be understood that term " first ", " second " are only used for describing purpose, and can not It is interpreted as instruction or hint relative importance or the implicit quantity indicating indicated technical characteristic.Thus, define " the One ", the feature of " second " can express or implicitly include at least one this feature.In describing the invention, " multiple " It is meant that at least two, such as two, three etc., unless otherwise expressly limited specifically.

In the present invention, unless otherwise clearly defined and limited, term " install ", " being connected ", " connection ", " fixing " etc. Term should be interpreted broadly, and connects for example, it may be fixing, it is also possible to be to removably connect, or integral；Can be that machinery connects Connect, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to be indirectly connected to by intermediary, in can being two devices The connection in portion or the interaction relationship of two devices, unless otherwise clear and definite restriction.For those of ordinary skill in the art For, above-mentioned term concrete meaning in the present invention can be understood as the case may be.

In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " specifically show Example " or the description of " some examples " etc. means to combine this embodiment or example describes specific features, structure, material or spy Point is contained at least one embodiment or the example of the present invention.In this manual, to the schematic representation of above-mentioned term not Identical embodiment or example must be directed to.And, the specific features of description, structure, material or feature can be in office One or more embodiments or example combine in an appropriate manner.Additionally, in the case of the most conflicting, the skill of this area The feature of the different embodiments described in this specification or example and different embodiment or example can be tied by art personnel Close and combination.

Although above it has been shown and described that embodiments of the invention, it is to be understood that above-described embodiment is example Property, it is impossible to being interpreted as limitation of the present invention, those of ordinary skill in the art within the scope of the invention can be to above-mentioned Embodiment is changed, revises, replaces and modification.

Claims (32)

1. the measurement apparatus being used for studying refrigerating agent containing oil characteristic, it is characterised in that including:

The control module of device under test is installed, for the operating mode under described plant running state being joined when described device starts Number, cold-producing medium parameter, heat transferring medium parameter and electrical quantity measure, and are adjusted described duty parameter；

Data acquisition module, is used for gathering described duty parameter, described cold-producing medium parameter, described heat transferring medium parameter and described electricity Parameter；And

Control module, for described data collecting module collected to the stability of described duty parameter judge, and Judge when described duty parameter is in steady statue, according to described duty parameter, described cold-producing medium parameter, described heat transferring medium ginseng Number and described electrical quantity calculate the oil content of described refrigerating agent containing oil and described refrigerating agent containing oil by during described device under test Performance.

Measurement apparatus for studying refrigerating agent containing oil characteristic the most according to claim 1, it is characterised in that described to be measured Device includes condensing heat exchanger to be measured, evaporating heat exchanger to be measured, the first throttle mechanism to be measured and the second throttle mechanism to be measured, its In,

When described device under test is described condensing heat exchanger to be measured or evaporating heat exchanger to be measured, described refrigerating agent containing oil passes through institute Performance when stating device under test includes the heat exchange amount of described device under test, the pressure drop of described device under test and cold-producing medium mass dryness fraction；

When described device under test is described first throttle mechanism to be measured or the second throttle mechanism to be measured, described refrigerating agent containing oil leads to Performance when crossing described device under test includes the discharge coefficient of described device under test.

Measurement apparatus for studying refrigerating agent containing oil characteristic the most according to claim 2, it is characterised in that described observing and controlling Module include frequency conversion refrigeration part, condensing heat-exchange observing and controlling parts, oil content observing and controlling parts, first throttle mechanism observing and controlling parts, Two throttle mechanism observing and controlling parts and evaporation and heat-exchange observing and controlling parts, wherein,

Described frequency conversion refrigeration part is for for described condensing heat-exchange observing and controlling parts, described first throttle mechanism observing and controlling parts, described Second throttle body observing and controlling parts and described evaporation and heat-exchange observing and controlling parts provide the adjustable refrigerating agent containing oil of oil content；

The entrance of described condensing heat-exchange observing and controlling parts is connected with the outlet of described frequency conversion refrigeration part, described condensing heat-exchange observing and controlling portion Part is used for the operating mode when described refrigerating agent containing oil is by described condensing heat-exchange observing and controlling parts to described condensing heat-exchange observing and controlling parts Parameter and heat transferring medium parameter measure, and are adjusted such that described to the duty parameter of described condensing heat-exchange observing and controlling parts The duty parameter of condensing heat-exchange observing and controlling parts is in steady statue；

The entrance of described oil content observing and controlling parts is connected with the outlet of described condensing heat-exchange observing and controlling parts, described oil content observing and controlling portion The outlet of part is connected with the entrance of described first throttle mechanism observing and controlling parts, and described oil content observing and controlling parts are at described oil-containing Cold-producing medium is carried out by duty parameter and cold-producing medium parameter to described oil content observing and controlling parts during described oil content observing and controlling parts Measure；

The entrance of described first throttle mechanism observing and controlling parts is connected with the outlet of described oil content observing and controlling parts, described first throttle Mechanism's observing and controlling parts are used for when described refrigerating agent containing oil is by described first throttle mechanism observing and controlling parts described first throttle Duty parameter and the cold-producing medium parameter of mechanism's observing and controlling parts measure, and the operating mode to described first throttle mechanism observing and controlling parts Parameter is adjusted such that the duty parameter of described first throttle mechanism observing and controlling parts is in steady statue；

The entrance of described second throttle body observing and controlling parts respectively with outlet and the described condensing heat-exchange of described frequency conversion refrigeration part The central exit of observing and controlling parts is connected, described second throttle body observing and controlling parts at described refrigerating agent containing oil by described the During two throttle mechanism observing and controlling parts, duty parameter and cold-producing medium parameter to described second throttle body observing and controlling parts measure, And the duty parameter of described second throttle body observing and controlling parts is adjusted such that described second throttle body observing and controlling parts Duty parameter is in steady statue；

First entrance of described evaporation and heat-exchange observing and controlling parts and the second entrance respectively with described first throttle mechanism observing and controlling parts Outlet is connected with the outlet correspondence of described second throttle body observing and controlling parts, and the outlet of described evaporation and heat-exchange observing and controlling parts is with described Frequency conversion refrigeration part entrance be connected, described evaporation and heat-exchange observing and controlling parts at described refrigerating agent containing oil by described evaporation and heat-exchange observing and controlling During parts, duty parameter and electrical quantity to described evaporation and heat-exchange observing and controlling parts measure, and to described evaporation and heat-exchange observing and controlling portion The duty parameter of part is adjusted such that the duty parameter of described evaporation and heat-exchange observing and controlling parts is in steady statue.

Measurement apparatus for studying refrigerating agent containing oil characteristic the most according to claim 3, it is characterised in that described condensation Heat exchange observing and controlling parts include:

First heat-exchanging component to be measured, entrance the entering as described condensing heat-exchange observing and controlling parts of described first heat-exchanging component to be measured Mouthful, the first stop valve that described first heat-exchanging component to be measured includes being sequentially connected in series, the first connectivity port to be measured, the second stop valve with And the first bypass cutoff valve that the first stop valve of connecting with described, the first connectivity port to be measured, the second stop valve are connected in parallel, Described first connectivity port to be measured is used for connecting described condensing heat exchanger to be measured；

Auxiliary condensing heat-exchange assembly, the outlet phase of the entrance of described auxiliary condensing heat-exchange assembly and described first heat-exchanging component to be measured Even, the outlet of described auxiliary condensing heat-exchange assembly condenses as the central exit of described condensing heat-exchange observing and controlling parts, described auxiliary Heat-exchanging component includes the first inner tube by described refrigerating agent containing oil and by the first sleeve of heat transferring medium；

Supercool control assembly, the entrance of described supercool control assembly is connected with the outlet of described auxiliary condensing heat-exchange assembly, described The outlet of supercool control assembly is as the outlet of described condensing heat-exchange observing and controlling parts, and described supercool control assembly includes by described Second inner tube of refrigerating agent containing oil and by the second sleeve pipe of described heat transferring medium.

Measurement apparatus for studying refrigerating agent containing oil characteristic the most according to claim 4, it is characterised in that described operating mode Parameter includes the refrigerant temperature of described first heat-exchanging component entrance to be measured, the cold-producing medium of described first heat-exchanging component entrance to be measured Pressure, the refrigerant temperature of described first heat-exchanging component to be measured outlet and the cold-producing medium pressure of described first heat-exchanging component to be measured outlet Power, described heat transferring medium parameter includes flowing through the specific heat capacity of the heat transferring medium of described first sleeve, density and volume flow, described The medium inlet temperature of first sleeve, the medium outlet temperature of described first sleeve, flow through the heat transferring medium of described second sleeve pipe Specific heat capacity, density and volume flow, the medium inlet temperature of described second sleeve pipe and the media outlet temperature of described second sleeve pipe Degree, wherein, described condensing heat-exchange observing and controlling parts also include:

First temperature meter, for measuring the refrigerant temperature of described first heat-exchanging component entrance to be measured；

First pressometer, for measuring the refrigerant pressure of described first heat-exchanging component entrance to be measured；

Second temperature meter, for measuring the refrigerant temperature of described first heat-exchanging component to be measured outlet；

Second pressometer, for measuring the refrigerant pressure of described first heat-exchanging component to be measured outlet；

First flow measuring device, for measuring the volume flow of the heat transferring medium flowing through described first sleeve；

4th temperature meter, for measuring the medium inlet temperature of described first sleeve；

5th temperature meter, for measuring the medium outlet temperature of described first sleeve；

Second flow measuring device, for measuring the volume flow of the heat transferring medium flowing through described second sleeve pipe；

6th temperature meter, for measuring the medium inlet temperature of described second sleeve pipe；

7th temperature meter, for measuring the medium outlet temperature of described second sleeve pipe.

Measurement apparatus for studying refrigerating agent containing oil characteristic the most according to claim 5, it is characterised in that, described system Cryogen parameter includes density and the temperature flowing through the cold-producing medium of described oil content observing and controlling parts, described oil content observing and controlling parts bag Include:

12nd temperature meter, for measuring the refrigerant temperature flowing through described oil content observing and controlling parts；

First dasymeter, for measuring the density of the cold-producing medium flowing through described oil content observing and controlling parts.

Measurement apparatus for studying refrigerating agent containing oil characteristic the most according to claim 6, it is characterised in that described first Throttle mechanism observing and controlling parts include the first throttle mechanism assembly to be measured and connect with described first throttle mechanism modules in parallel to be measured The the first auxiliary throttle mechanism assembly connect, wherein,

First throttle mechanism assembly to be measured includes the 3rd stop valve, the second connectivity port to be measured and the 4th cut-off being sequentially connected in series Valve, described second connectivity port to be measured is used for connecting described first throttle mechanism to be measured；

Described first auxiliary throttle mechanism assembly includes the 5th stop valve, the first auxiliary throttle mechanism and the 6th section being sequentially connected in series Only valve.

Measurement apparatus for studying refrigerating agent containing oil characteristic the most according to claim 7, it is characterised in that described operating mode Parameter includes the refrigerant temperature of described first throttle mechanism observing and controlling component entry, described first throttle mechanism observing and controlling component entry Refrigerant pressure, the mass flow flowing through described first throttle mechanism observing and controlling parts and described first throttle mechanism observing and controlling parts The refrigerant pressure of outlet, described cold-producing medium parameter includes flowing through the close of the cold-producing medium of described first throttle mechanism observing and controlling parts Degree, wherein, described first throttle mechanism observing and controlling parts also include:

3rd temperature meter, for measuring the refrigerant temperature of described first throttle mechanism observing and controlling component entry；

3rd pressometer, for measuring the refrigerant pressure of described first throttle mechanism observing and controlling component entry；

Second dasymeter, for measuring the density of the cold-producing medium flowing through described first throttle mechanism observing and controlling parts；

3rd flow measuring probe, for measuring the mass flow of the cold-producing medium flowing through described first throttle mechanism observing and controlling parts；

4th pressometer, for measuring the refrigerant pressure of described first throttle mechanism observing and controlling knockdown export.

Measurement apparatus for studying refrigerating agent containing oil characteristic the most according to claim 8, it is characterised in that described first Dasymeter and the second dasymeter are same dasymeter, described 3rd temperature meter and described 12nd temperature Degree measuring device can be same temperature meter.

Measurement apparatus for studying refrigerating agent containing oil characteristic the most according to claim 9, it is characterised in that described Two throttle mechanism observing and controlling parts include:

Second throttle mechanism assembly to be measured, the 7th stop valve that described second throttle mechanism assembly to be measured includes being sequentially connected in series, Three connectivity ports to be measured and the 8th stop valve, described 3rd connectivity port to be measured is used for connecting described second throttle mechanism to be measured；

The the second auxiliary throttle mechanism assembly being connected with described second throttle mechanism modules in parallel to be measured, in parallel described second auxiliary Help throttle mechanism assembly one end with described second throttle mechanism assembly to be measured as described second throttle body observing and controlling parts Entrance, in parallel described second assists the throttle mechanism assembly other end with described second throttle mechanism assembly to be measured as described The outlet of second throttle body observing and controlling parts, the 9th stop valve that described second auxiliary throttle mechanism assembly includes being sequentially connected in series, Second auxiliary throttle mechanism and the tenth stop valve；

Wherein, the entrance of described second throttle body observing and controlling parts is by the outlet phase of the 11st stop valve with frequency conversion refrigeration part Even, the entrance of described second throttle body observing and controlling parts going out also by the 12nd stop valve and described auxiliary condensing heat-exchange assembly Mouth is connected.

11. measurement apparatus for studying refrigerating agent containing oil characteristic according to claim 10, it is characterised in that described work Condition parameter includes flowing through the mass flow of the cold-producing medium of described second throttle body observing and controlling parts, described second throttle body observing and controlling The refrigerant temperature of component entry, the refrigerant pressure of described second throttle body observing and controlling component entry and described second throttling The refrigerant pressure of mechanism's observing and controlling knockdown export, described cold-producing medium parameter includes flowing through described second throttle body observing and controlling parts The density of cold-producing medium, wherein, described second throttle body observing and controlling parts also include:

Triple density measuring device, for measuring the density of the cold-producing medium flowing through described second throttle body observing and controlling parts；

4th flow measuring probe, for measuring the mass flow of the cold-producing medium flowing through described second throttle body observing and controlling parts；

8th temperature meter, for measuring the refrigerant temperature of described second throttle body observing and controlling component entry；

8th pressometer, for measuring the refrigerant pressure of described second throttle body observing and controlling component entry；

5th pressometer, for measuring the refrigerant pressure of described second throttle body observing and controlling knockdown export.

12. measurement apparatus for studying refrigerating agent containing oil characteristic according to claim 11, it is characterised in that described steaming Send out heat exchange observing and controlling parts to include:

Air and liquid mixer, the first entrance of described air and liquid mixer is connected with the outlet of described first throttle mechanism observing and controlling parts, Second entrance of described air and liquid mixer is connected with the outlet of described second throttle body observing and controlling parts；

Second heat-exchanging component to be measured, the described entrance of the second heat-exchanging component to be measured is connected with the outlet of described air and liquid mixer, institute State the 13rd stop valve that the second heat-exchanging component to be measured includes being sequentially connected in series, the 4th connectivity port to be measured, the 14th stop valve with And the second bypass that the 13rd stop valve connected with described, the 4th connectivity port to be measured, the 14th stop valve are connected in parallel cuts Only valve, described 4th connectivity port to be measured is used for connecting described evaporating heat exchanger to be measured；

Assisted evaporative heat-exchanging component, the outlet phase of the entrance of described assisted evaporative heat-exchanging component and described second heat-exchanging component to be measured Even, the outlet of described assisted evaporative heat-exchanging component is as the outlet of described evaporation and heat-exchange observing and controlling parts, described auxiliary condensing heat-exchange Assembly includes the 3rd inner tube by described refrigerating agent containing oil and heats the refrigerating agent containing oil in described 3rd inner tube Primary heater.

13. measurement apparatus for studying refrigerating agent containing oil characteristic according to claim 12, it is characterised in that described work Condition parameter include the refrigerant temperature of described 3rd inner tube outlet, the refrigerant pressure of described 3rd inner tube outlet, described first The heating power of heater, the refrigerant temperature of described second heat-exchanging component to be measured outlet, described second heat-exchanging component to be measured go out Refrigerant pressure, the refrigerant temperature of described second heat-exchanging component entrance to be measured and the described second heat-exchanging component entrance to be measured of mouth Refrigerant pressure, described electrical quantity includes the heating power of described primary heater, wherein, described evaporation and heat-exchange observing and controlling parts Also include:

9th temperature meter, for measuring the refrigerant temperature of described 3rd inner tube outlet；

9th pressometer, for measuring the refrigerant pressure of described 3rd inner tube outlet；

Power checker, for measuring the heating power of described primary heater；

Tenth temperature meter, for measuring the refrigerant temperature of described second heat-exchanging component to be measured outlet；

Tenth pressometer, for measuring the refrigerant pressure of described second heat-exchanging component to be measured outlet；

11st temperature meter, for measuring the refrigerant temperature of described second heat-exchanging component entrance to be measured；And

11st pressometer, for measuring the refrigerant pressure of described second heat-exchanging component entrance to be measured.

14. measurement apparatus for studying refrigerating agent containing oil characteristic according to claim 13, it is characterised in that described control Molding tuber is according to the oil content of the below equation described refrigerating agent containing oil of calculating:

X=a ρ₁+b·T³+c·T²+d·T+e

Wherein, X is the oil content of described refrigerating agent containing oil, ρ₁For flowing through the density of the cold-producing medium of described oil content observing and controlling parts, T For flowing through the refrigerant temperature of described oil content observing and controlling parts, a, b, c, d, e are constant and according to described coolant and refrigerator oil Combination variety determine.

15. measurement apparatus for studying refrigerating agent containing oil characteristic according to claim 14, it is characterised in that by first The refrigerant temperature of throttle mechanism observing and controlling component entry and refrigerant pressure are respectively as the cold-producing medium of described second inner tube outlet Temperature and refrigerant pressure, when described condensing heat exchanger to be measured participates in kind of refrigeration cycle, described evaporating heat exchanger to be measured, described the One throttle mechanism to be measured and described second throttle mechanism to be measured and described second auxiliary throttle mechanism assembly are not involved in refrigeration and follow Ring, described control module calculates described refrigerating agent containing oil by heat exchange during described condensing heat exchanger to be measured according to below equation Amount, pressure drop and cold-producing medium mass dryness fraction:

Q₁=M₁[(1-X)(h_SO-h_CI1)+C₀X(T_SO-T_CI1)]-C[m₁(T₂-T₁)+m₂(T₄-T₃)]；

Δ P1=P_CO1-P_CI1；

χ₁=f₃(h_CO1,T_CO1,P_CO1), wherein,

Wherein, Q₁For described refrigerating agent containing oil by heat exchange amount during described condensing heat exchanger to be measured, Δ P1 is described oil-containing refrigeration Agent is by pressure drop during described condensing heat exchanger to be measured, χ₁For the cold-producing medium mass dryness fraction of described condensing heat exchanger to be measured outlet, M₁For stream Crossing the mass flow of the cold-producing medium of described first throttle mechanism observing and controlling parts, X is the oil content of described refrigerating agent containing oil, h_SOFor institute State the cold-producing medium of the second inner tube outlet than enthalpy, h_SOWith the characteristic of cold-producing medium and the refrigerant temperature of described second inner tube outlet T_SO, the refrigerant pressure P of described second inner tube outlet_SORelevant, h_CI1Cold-producing medium for described first heat-exchanging component entrance to be measured Ratio enthalpy, h_CI1With the characteristic of cold-producing medium and refrigerant temperature T of described first heat-exchanging component entrance to be measured_CI1, described first The refrigerant pressure P of heat-exchanging component entrance to be measured_CI1Relevant, C₀For the specific heat capacity of refrigerator oil, C is the specific heat capacity of heat transferring medium, m₁For flowing through the volume flow of the heat transferring medium of described first sleeve, T₁For the medium inlet temperature of described first sleeve, T₂For institute State the medium outlet temperature of first sleeve, m₂For flowing through the volume flow of the heat transferring medium of described second sleeve pipe, T₃For described second The medium inlet temperature of sleeve pipe, T₄For the medium outlet temperature of described second sleeve pipe, h_CO1Go out for described first heat-exchanging component to be measured The cold-producing medium of mouth is than enthalpy, h_CO1With the characteristic of cold-producing medium and the refrigerant temperature of described first heat-exchanging component to be measured outlet T_CO1, the refrigerant pressure P of described first heat-exchanging component to be measured outlet_CO1Relevant.

16. measurement apparatus for studying refrigerating agent containing oil characteristic according to claim 14, it is characterised in that when described When evaporating heat exchanger to be measured participates in kind of refrigeration cycle, described condensing heat exchanger to be measured, described first throttle mechanism to be measured and described the Two throttle mechanisms to be measured are not involved in kind of refrigeration cycle, and described control module calculates described refrigerating agent containing oil according to below equation and passes through institute State heat exchange amount, pressure drop and cold-producing medium mass dryness fraction during evaporating heat exchanger to be measured:

Q₂=(M₁+M₂)[(1-X)h_EO2+C₀XT_EO2]-(1-X)(M₁h_TI1+M₂h_TI2)-C₀M₁XT_TI1-C₀M₂XT_TI2-Q₀；

Δ P2=P_EO1-P_EI1；

${\mathrm{\χ}}_2=\frac{\left(M1h_{TI1}+M2h_{TI2}\right)\left(1-X\right)+{\mathrm{XC}}_0\left(M1T_{TI1}+M2T_{TI2}\right)-\left(M1+M2\right)\[\left(1-X\right)h_{EIL}+{\mathrm{XC}}_0{T}_{EI}\]}{\left(h_{EIL}-h_{EIG}\right)\left(M1+M2\right)\left(1-X\right)};$

Wherein, Q₂For described refrigerating agent containing oil by heat exchange amount during described evaporating heat exchanger to be measured, Δ P2 is described evaporation to be measured Heat exchanger refrigerating agent containing oil by time pressure drop, χ₂For the cold-producing medium mass dryness fraction of described evaporative heat exchanger inlet to be measured, M₁For flowing through The mass flow of the cold-producing medium of described first throttle mechanism observing and controlling parts, M₂For flowing through described second throttle body observing and controlling parts The mass flow of cold-producing medium, X is the oil content of described refrigerating agent containing oil, h_EO2Cold-producing medium specific enthalpy for described 3rd inner tube outlet Value, h_EO2With the characteristic of cold-producing medium and refrigerant temperature T of described 3rd inner tube outlet_EO2, the system of described 3rd inner tube outlet Refrigerant pressure P_EO2Relevant, h_TI1For the cold-producing medium of described first throttle mechanism observing and controlling component entry than enthalpy, h_TI1With cold-producing medium Characteristic and refrigerant temperature T of described first throttle mechanism observing and controlling component entry_TI1, described first throttle mechanism observing and controlling parts The refrigerant pressure P of entrance_TI1Relevant, h_TI2With refrigerant property and the refrigeration of described second throttle body observing and controlling component entry Agent temperature T_TI2Refrigerant pressure P with described second throttle body observing and controlling component entry_TI2Relevant, C₀Specific heat for refrigerator oil Hold, Q₀For the heating power of described primary heater, P_EO1For the refrigerant pressure of described second heat-exchanging component to be measured outlet, h_EIL For the described saturated liquid refrigerant of evaporative heat exchanger inlet to be measured than enthalpy, h_EIGDescribed evaporative heat exchanger inlet saturated air to be measured State cold-producing medium is than enthalpy, h_EILAnd h_EIGAll with refrigerant temperature T of described second heat-exchanging component entrance to be measured_EI1Relevant.

17. measurement apparatus for studying refrigerating agent containing oil characteristic according to claim 14, it is characterised in that when described When first throttle mechanism to be measured participates in kind of refrigeration cycle, described condensing heat exchanger to be measured, evaporating heat exchanger to be measured and described second are treated Survey throttle mechanism and described first auxiliary throttle mechanism assembly and described second auxiliary throttle mechanism assembly is not involved in refrigeration and follows Ring, described control module calculates described refrigerating agent containing oil by flow during described first throttle mechanism to be measured according to below equation Coefficient:

$C_{D1}=\frac{M_1}{A_1\sqrt{2{\mathrm{\ρ}}_2(P_{TI1}-P_{TO1})}}$

Wherein, C_D1For described refrigerating agent containing oil by discharge coefficient during described first throttle mechanism to be measured, M₁Described for flowing through The mass flow of the cold-producing medium of first throttle mechanism observing and controlling parts, A₁For the circulation area of described first throttle mechanism to be measured, ρ₂For Flow through the density of the cold-producing medium of described first throttle mechanism observing and controlling parts, P_TI1For described first throttle mechanism observing and controlling component entry Refrigerant pressure, P_TO1Refrigerant pressure for described first throttle mechanism observing and controlling knockdown export.

18. measurement apparatus for studying refrigerating agent containing oil characteristic according to claim 14, it is characterised in that when described When second throttle mechanism to be measured participates in kind of refrigeration cycle, described condensing heat exchanger to be measured, evaporating heat exchanger to be measured and described first are treated Survey throttle mechanism and described second auxiliary throttle mechanism assembly is not involved in kind of refrigeration cycle, when described gaseous refrigerant or described gas When liquid two phase cold-producing medium is by described second throttle mechanism to be measured, described control module calculates described oil-containing according to below equation Cold-producing medium is by discharge coefficient during described second throttle mechanism to be measured:

$C_{D2}=\frac{M_2}{A_2\sqrt{2{\mathrm{\ρ}}_3(P_{TI2}-P_{TO2})}}$

Wherein, C_D2For described refrigerating agent containing oil by discharge coefficient during described second throttle mechanism to be measured, M₂Described for flowing through The mass flow of the cold-producing medium of second throttle body observing and controlling parts, A₂For the circulation area of described second throttle mechanism to be measured, ρ₃For Flow through the density of the cold-producing medium of described second throttle body observing and controlling parts, P_TI2For described second throttle body observing and controlling component entry Refrigerant pressure, P_TO2Refrigerant pressure for described second throttle body observing and controlling knockdown export.

19. according to the measurement apparatus for studying refrigerating agent containing oil characteristic described in claim 3-18, it is characterised in that described Frequency conversion refrigeration part include frequency conversion cooling assembly, separating of oil assembly, fuel feeding assembly and and oil-gas mixer, wherein, described control Module, for after calculating the oil content of described refrigerating agent containing oil, regulates described according to the oil content of described refrigerating agent containing oil Fuel feeding assembly supplies the fuel delivery of described oil-gas mixer, so that the oil content of described refrigerating agent containing oil reaches to set oil content.

20. 1 kinds for studying the measuring method of the measurement apparatus of refrigerating agent containing oil characteristic, it is characterised in that is containing for research The measurement apparatus of oil refrigerant property installs device under test, said method comprising the steps of:

When the described measurement apparatus for studying refrigerating agent containing oil characteristic starts, the operating mode under described plant running state is joined Number, cold-producing medium parameter, heat transferring medium parameter and electrical quantity measure, and are adjusted described duty parameter；

Gather described duty parameter, described cold-producing medium parameter, described heat transferring medium parameter and described electrical quantity；And

To described data collecting module collected to the stability of described duty parameter judge, and judging that described operating mode is joined When number is in steady statue, according to described duty parameter, described cold-producing medium parameter, described heat transferring medium parameter and described electrical quantity Calculate the oil content of described refrigerating agent containing oil and described refrigerating agent containing oil by performance during described device under test.

The measuring method of 21. measurement apparatus for studying refrigerating agent containing oil characteristic according to claim 20, its feature It is,

Described device under test includes that condensing heat exchanger to be measured, evaporating heat exchanger to be measured, the first throttle mechanism to be measured and second are to be measured Throttle mechanism, wherein,

When described device under test is described condensing heat exchanger to be measured or evaporating heat exchanger to be measured, described refrigerating agent containing oil passes through institute Performance when stating device under test includes the heat exchange amount of described device under test, the pressure drop of described device under test and cold-producing medium mass dryness fraction；

When described device under test is described first throttling to be measured or the second throttle mechanism to be measured, described refrigerating agent containing oil passes through institute Performance when stating device under test includes the discharge coefficient of described device under test.

The measuring method of 22. measurement apparatus for studying refrigerating agent containing oil characteristic according to claim 21, its feature Being, described control module includes frequency conversion refrigeration part, condensing heat-exchange observing and controlling parts, oil content observing and controlling parts, first throttle machine Structure observing and controlling parts, second throttle body observing and controlling parts and evaporation and heat-exchange observing and controlling parts, wherein,

Described duty parameter includes the refrigerant temperature of the first heat-exchanging component entrance to be measured, institute in described condensing heat-exchange observing and controlling parts State the refrigerant pressure of the first heat-exchanging component entrance to be measured, the refrigerant temperature and described of described first heat-exchanging component to be measured outlet The refrigerant pressure of the first heat-exchanging component to be measured outlet；

Described heat transferring medium parameter includes flowing through the first sleeve assisting condensing heat-exchange assembly in described condensing heat-exchange observing and controlling parts The specific heat capacity of heat transferring medium, density and volume flow, the medium inlet temperature of described first sleeve, Jie of described first sleeve Matter outlet temperature, flow through the specific heat of the heat transferring medium of the second sleeve pipe of supercool control assembly in described condensing heat-exchange observing and controlling parts Appearance, density and volume flow, the medium inlet temperature of described second sleeve pipe and the medium outlet temperature of described second sleeve pipe.

The measuring method of 23. measurement apparatus for studying refrigerating agent containing oil characteristic according to claim 22, its feature Being, described cold-producing medium parameter includes temperature and the density flowing through the cold-producing medium of described oil content observing and controlling parts.

The measuring method of 24. measurement apparatus for studying refrigerating agent containing oil characteristic according to claim 23, its feature Being, described duty parameter includes that the refrigerant pressure of described first throttle mechanism observing and controlling component entry flows through described first throttle The mass flow of the cold-producing medium of mechanism's observing and controlling parts and the refrigerant pressure of described first throttle mechanism observing and controlling knockdown export, described Cold-producing medium parameter includes the density flowing through the cold-producing medium of described first throttle mechanism observing and controlling parts.

The measuring method of 25. measurement apparatus for studying refrigerating agent containing oil characteristic according to claim 24, its feature It is,

Described duty parameter also includes flowing through described in the mass flow of the cold-producing medium of described second throttle body observing and controlling parts second The refrigerant temperature of throttle mechanism observing and controlling component entry, the refrigerant pressure of described second throttle body observing and controlling component entry and The refrigerant pressure of described second throttle body observing and controlling knockdown export；

Described cold-producing medium parameter also includes the density flowing through the cold-producing medium of described second throttle body observing and controlling parts.

The measuring method of 26. measurement apparatus for studying refrigerating agent containing oil characteristic according to claim 25, its feature It is,

Described duty parameter also includes the 3rd inner tube outlet of assisted evaporative heat-exchanging component in described evaporation and heat-exchange observing and controlling parts Assisted evaporative heat exchange group in refrigerant temperature, the refrigerant pressure of described 3rd inner tube outlet, described evaporation and heat-exchange observing and controlling parts The cold-producing medium temperature of the second heat-exchanging component to be measured outlet in the heating power of the primary heater of part, described evaporation and heat-exchange observing and controlling parts Degree, the refrigerant pressure of described second heat-exchanging component to be measured outlet, the refrigerant temperature of described second heat-exchanging component entrance to be measured Refrigerant pressure with described second heat-exchanging component entrance to be measured；

Described electrical quantity includes the heating power of described primary heater.

The measuring method of 27. measurement apparatus for studying refrigerating agent containing oil characteristic according to claim 26, its feature It is, according to the oil content of the below equation described refrigerating agent containing oil of calculating:

X=a ρ₁+b·T³+c·T²+d·T+e

Wherein, X is the oil content of described refrigerating agent containing oil, ρ₁For flowing through the density of the cold-producing medium of described oil content observing and controlling parts, T For flowing through the refrigerant temperature of described oil content observing and controlling parts, a, b, c, d, e are constant and according to described coolant and refrigerator oil Combination variety determine.

The measuring method of 28. measurement apparatus for studying refrigerating agent containing oil characteristic according to claim 27, its feature It is, refrigerant temperature and the refrigerant pressure of first throttle mechanism observing and controlling component entry are surveyed as described condensing heat-exchange Control refrigerant temperature and the refrigerant pressure of the second inner tube outlet of supercool control assembly in parts, when described condensing heat-exchange to be measured When device participates in kind of refrigeration cycle, described evaporating heat exchanger to be measured, described first throttle mechanism to be measured and described second throttling machine to be measured Second auxiliary throttle mechanism assembly of structure and described second throttle body observing and controlling parts is not involved in kind of refrigeration cycle, according to following public affairs Formula calculates described refrigerating agent containing oil by heat exchange amount during described condensing heat exchanger to be measured, pressure drop and cold-producing medium mass dryness fraction:

Q₁=M₁[(1-X)(h_SO-h_CI1)+C₀X(T_SO-T_CI1)]-C[m₁(T₂-T₁)+m₂(T₄-T₃)]；

Δ P1=P_CO1-P_CI1；

χ₁=f₃(h_CO1,T_CO1,P_CO1), wherein,

Wherein, Q₁For described refrigerating agent containing oil by heat exchange amount during described condensing heat exchanger to be measured, Δ P1 is described oil-containing refrigeration Agent is by pressure drop during described condensing heat exchanger to be measured, χ₁For the cold-producing medium mass dryness fraction of described condensing heat exchanger to be measured outlet, M₁For stream Crossing the mass flow of the cold-producing medium of described first throttle mechanism observing and controlling parts, X is the oil content of described refrigerating agent containing oil, h_SOFor institute State the cold-producing medium of the second inner tube outlet than enthalpy, h_SOWith the characteristic of cold-producing medium and the refrigerant temperature of described second inner tube outlet T_SO, the refrigerant pressure P of described second inner tube outlet_SORelevant, h_CI1Cold-producing medium for described first heat-exchanging component entrance to be measured Ratio enthalpy, h_CI1With the characteristic of cold-producing medium and refrigerant temperature T of described first heat-exchanging component entrance to be measured_CI1, described first The refrigerant pressure P of heat-exchanging component entrance to be measured_CI1Relevant, C₀For the specific heat capacity of refrigerator oil, C is the specific heat capacity of heat transferring medium, m₁For flowing through the volume flow of the heat transferring medium of described first sleeve, T₁For the medium inlet temperature of described first sleeve, T₂For institute State the medium outlet temperature of first sleeve, m₂For flowing through the volume flow of the heat transferring medium of described second sleeve pipe, T₃For described second The medium inlet temperature of sleeve pipe, T₄For the medium outlet temperature of described second sleeve pipe, h_CO1Go out for described first heat-exchanging component to be measured The cold-producing medium of mouth is than enthalpy, h_CO1With the characteristic of cold-producing medium and the refrigerant temperature of described first heat-exchanging component to be measured outlet T_CO1, the refrigerant pressure P of described first heat-exchanging component to be measured outlet_CO1Relevant.

The measuring method of 29. measurement apparatus for studying refrigerating agent containing oil characteristic according to claim 27, its feature It is, when described evaporating heat exchanger to be measured participates in kind of refrigeration cycle, described condensing heat exchanger to be measured, described first throttling machine to be measured Structure and described second throttle mechanism to be measured are not involved in kind of refrigeration cycle, calculate described refrigerating agent containing oil by described according to below equation Heat exchange amount, pressure drop and cold-producing medium mass dryness fraction during evaporating heat exchanger to be measured:

Q₂=(M₁+M₂)[(1-X)h_EO2+C₀XT_EO2]-(1-X)(M₁h_TI1+M₂h_TI2)-C₀M₁XT_TI1-C₀M₂XT_TI2-Q₀；

Δ P2=P_EO1-P_EI1；

${\mathrm{\χ}}_2=\frac{\left(M1h_{TI1}+M2h_{TI2}\right)\left(1-X\right)+{\mathrm{XC}}_0\left(M1T_{TI1}+M2T_{TI2}\right)-\left(M1+M2\right)\[\left(1-X\right)h_{EIL}+{\mathrm{XC}}_0{T}_{EI}\]}{\left(h_{EIL}-h_{EIG}\right)\left(M1+M2\right)\left(1-X\right)};$

Wherein, Q₂For described refrigerating agent containing oil by heat exchange amount during described evaporating heat exchanger to be measured, Δ P2 is described oil-containing refrigeration Agent is by pressure drop during described evaporating heat exchanger to be measured, χ₂For the cold-producing medium mass dryness fraction of described evaporative heat exchanger inlet to be measured, M₁For stream Cross the mass flow of the cold-producing medium of described first throttle mechanism observing and controlling parts, M₂For flowing through described second throttle body observing and controlling parts The mass flow of cold-producing medium, X is the oil content of described refrigerating agent containing oil, h_EO2Cold-producing medium ratio for described 3rd inner tube outlet Enthalpy, h_EO2With the characteristic of cold-producing medium and refrigerant temperature T of described 3rd inner tube outlet_EO2, described 3rd inner tube outlet Refrigerant pressure P_EO2Relevant, h_TI1For the cold-producing medium of described first throttle mechanism observing and controlling component entry than enthalpy, h_TI1With cold-producing medium Characteristic and refrigerant temperature T of described first throttle mechanism observing and controlling component entry_TI1, observing and controlling portion of described first throttle mechanism The refrigerant pressure P of part entrance_TI1Relevant, h_TI2With refrigerant property and the system of described second throttle body observing and controlling component entry Refrigerant temperature T_TI2Refrigerant pressure P with described second throttle body observing and controlling component entry_TI2Relevant, C₀Ratio for refrigerator oil Thermal capacitance, Q₀For the heating power of described primary heater, P_EO1The refrigerant pressure exported for described second heat-exchanging component to be measured, h_EILFor the described saturated liquid refrigerant of evaporative heat exchanger inlet to be measured than enthalpy, h_EIGDescribed evaporative heat exchanger inlet to be measured is saturated Gaseous refrigerant is than enthalpy, h_EILAnd h_EIGAll with refrigerant temperature T of described second heat-exchanging component entrance to be measured_EI1Relevant.

The measuring method of 30. measurement apparatus for studying refrigerating agent containing oil characteristic according to claim 27, its feature Be, when described first throttle mechanism to be measured participate in kind of refrigeration cycle time, described condensing heat exchanger to be measured, evaporating heat exchanger to be measured, With in described second throttle mechanism to be measured and described first throttle mechanism observing and controlling parts first auxiliary throttle mechanism assembly and The second auxiliary throttle mechanism assembly in described second throttle body observing and controlling parts is not involved in kind of refrigeration cycle, according to below equation meter Calculate described refrigerating agent containing oil by discharge coefficient during described first throttle mechanism to be measured:

$C_{D1}=\frac{M_1}{A_1\sqrt{2{\mathrm{\ρ}}_2(P_{TI1}-P_{TO1})}}$

Wherein, C_D1For described refrigerating agent containing oil by discharge coefficient during described first throttle mechanism to be measured, M₁Described for flowing through The mass flow of the cold-producing medium of first throttle mechanism observing and controlling parts, A₁For the circulation area of described first throttle mechanism to be measured, ρ₂For Flow through the density of the cold-producing medium of described first throttle mechanism observing and controlling parts, P_TI1For described first throttle mechanism observing and controlling component entry Refrigerant pressure, P_TO1Refrigerant pressure for described first throttle mechanism observing and controlling knockdown export.

The measuring method of 31. measurement apparatus for studying refrigerating agent containing oil characteristic according to claim 27, its feature Be, when described second throttle mechanism to be measured participate in kind of refrigeration cycle time, described condensing heat exchanger to be measured, evaporating heat exchanger to be measured, With the second auxiliary throttle mechanism assembly in described first throttle mechanism to be measured and described second throttle body observing and controlling parts not Participate in kind of refrigeration cycle, when described gaseous refrigerant or described gas-liquid two-phase state cold-producing medium are by described second throttle mechanism to be measured Time, calculate described refrigerating agent containing oil by discharge coefficient during described second throttle mechanism to be measured according to below equation:

$C_{D2}=\frac{M_2}{A_2\sqrt{2{\mathrm{\ρ}}_3(P_{TI2}-P_{TO2})}}$

Wherein, C_D2For described refrigerating agent containing oil by discharge coefficient during described second throttle mechanism to be measured, M₂Described for flowing through The mass flow of the cold-producing medium of second throttle body observing and controlling parts, A₂For the circulation area of described second throttle mechanism to be measured, ρ₃For Flow through the density of the cold-producing medium of described second throttle body observing and controlling parts, P_TI2For described second throttle body observing and controlling component entry Refrigerant pressure, P_TO2Refrigerant pressure for described second throttle body observing and controlling knockdown export.

32. study the measuring method of the measurement apparatus of refrigerating agent containing oil characteristic according to being used for described in claim 22-31, and it is special Levying and be, described frequency conversion refrigeration part includes frequency conversion cooling assembly, separating of oil assembly, fuel feeding assembly and and oil-gas mixer, institute Method of stating also includes:

After calculating the oil content of described cold-producing medium, regulate the supply of described fuel feeding assembly according to the oil content of described cold-producing medium The fuel delivery of described oil-gas mixer, so that the oil content of described cold-producing medium reaches to set oil content.