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)(hSO-hCI1)+C0X(TSO-TCI1)]-C[m1(T2-T1)+m2(T4-T3)];
Δ P1=PCO1-PCI1;
χ1=f3(hCO1,TCO1,PCO1), 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, hSOFor
The cold-producing medium of described second inner tube outlet is than enthalpy, hSOWith the characteristic of cold-producing medium and the cold-producing medium temperature of described second inner tube outlet
Degree TSO, the refrigerant pressure P of described second inner tube outletSORelevant, hCI1Refrigeration for described first heat-exchanging component entrance to be measured
Agent is than enthalpy, hCI1With the characteristic of cold-producing medium and refrigerant temperature T of described first heat-exchanging component entrance to be measuredCI1, described
The refrigerant pressure P of one heat-exchanging component entrance to be measuredCI1Relevant, 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, hCO1For described first heat exchange group to be measured
The cold-producing medium of part outlet is than enthalpy, hCO1With the characteristic of cold-producing medium and the cold-producing medium temperature of described first heat-exchanging component to be measured outlet
Degree TCO1, the refrigerant pressure P of described first heat-exchanging component to be measured outletCO1Relevant.
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)hEO2+C0XTEO2]-(1-X)(M1hTI1+M2hTI2)-C0M1XTTI1-C0M2XTTI2-Q0;
Δ P2=PEO1-PEI1;
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, hEO2Cold-producing medium for described 3rd inner tube outlet
Ratio enthalpy, hEO2With the characteristic of cold-producing medium and refrigerant temperature T of described 3rd inner tube outletEO2, described 3rd inner tube outlet
Refrigerant pressure PEO2Relevant, hTI1For the cold-producing medium of described first throttle mechanism observing and controlling component entry than enthalpy, hTI1With refrigeration
The characteristic of agent and refrigerant temperature T of described first throttle mechanism observing and controlling component entryTI1, the observing and controlling of described first throttle mechanism
The refrigerant pressure P of component entryTI1Relevant, hTI2With refrigerant property and described second throttle body observing and controlling component entry
Refrigerant temperature TTI2Refrigerant pressure P with described second throttle body observing and controlling component entryTI2Relevant, C0For refrigerator oil
Specific heat capacity, Q0For the heating power of described primary heater, PEO1Cold-producing medium pressure for described second heat-exchanging component to be measured outlet
Power, hEILFor the described saturated liquid refrigerant of evaporative heat exchanger inlet to be measured than enthalpy, hEIGDescribed evaporative heat exchanger inlet to be measured
Saturated gaseous refrigerant is than enthalpy, hEILAnd hEIGAll with refrigerant temperature T of described second heat-exchanging component entrance to be measuredEIRelevant.
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:
Wherein, CD1For 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, PTI1Enter for described first throttle mechanism observing and controlling parts
The refrigerant pressure of mouth, PTO1Refrigerant 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:
Wherein, CD2For 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, PTI2For described second throttle body observing and controlling component entry
Refrigerant pressure, PTO2Refrigerant 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)(hSO-hCI1)+C0X(TSO-TCI1)]-C[m1(T2-T1)+m2(T4-T3)];
Δ P1=PCO1-PCI1;
χ1=f3(hCO1,TCO1,PCO1), 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, hSOFor the cold-producing medium of described second inner tube outlet than enthalpy, hSOWith the characteristic of cold-producing medium and described second inner tube outlet
Refrigerant temperature TSO, the refrigerant pressure P of described second inner tube outletSORelevant, hCI1Enter for described first heat-exchanging component to be measured
The cold-producing medium of mouth is than enthalpy, hCI1With the characteristic of cold-producing medium and the refrigerant temperature of described first heat-exchanging component entrance to be measured
TCI1, the refrigerant pressure P of described first heat-exchanging component entrance to be measuredCI1Relevant, 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, hCO1For described first
The cold-producing medium of heat-exchanging component to be measured outlet is than enthalpy, hCO1With the characteristic of cold-producing medium and described first heat-exchanging component to be measured outlet
Refrigerant temperature TCO1, the refrigerant pressure P of described first heat-exchanging component to be measured outletCO1Relevant.
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)hEO2+C0XTEO2]-(1-X)(M1hTI1+M2hTI2)-C0M1XTTI1-C0M2XTTI2-Q0;
Δ P2=PEO1-PEI1;
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, hEO2For described 3rd inner tube outlet
Cold-producing medium is than enthalpy, hEO2With the characteristic of cold-producing medium and refrigerant temperature T of described 3rd inner tube outletEO2, in the described 3rd
The refrigerant pressure P of pipe outletEO2Relevant, hTI1For the cold-producing medium of described first throttle mechanism observing and controlling component entry than enthalpy, hTI1
With the characteristic of cold-producing medium and refrigerant temperature T of described first throttle mechanism observing and controlling component entryTI1, described first throttle machine
The refrigerant pressure P of structure observing and controlling component entryTI1Relevant, hTI2With refrigerant property and described second throttle body observing and controlling parts
Refrigerant temperature T of entranceTI2Refrigerant pressure P with described second throttle body observing and controlling component entryTI2Relevant, C0For freezing
The specific heat capacity of machine oil, Q0For the heating power of described primary heater, PEO1Refrigeration for described second heat-exchanging component to be measured outlet
Agent pressure, hEILFor the described saturated liquid refrigerant of evaporative heat exchanger inlet to be measured than enthalpy, hEIGDescribed evaporating heat exchanger to be measured
The saturated gaseous refrigerant of entrance is than enthalpy, hEILAnd hEIGAll with refrigerant temperature T of described second heat-exchanging component entrance to be measuredEI1
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:
Wherein, CD1For 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, PTI1For observing and controlling portion of described first throttle mechanism
The refrigerant pressure of part entrance, PTO1Refrigerant 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:
Wherein, CD2For 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, PTI2For described second throttle body observing and controlling portion
The refrigerant pressure of part entrance, PTO2Refrigerant 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.
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 belowCO1With PCI2The second temperature meter 441 is all used to measure,
TSO、TDI1With TTI1The 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 92DI1, the 12nd temperature meter 91 can be passed through
Measurement obtains, it is also possible to refrigerant temperature T of supercool control assembly 48 outletSOWith first throttle mechanism observing and controlling parts 60 entrance
Refrigerant temperature TTI1Replace, i.e. TSO、TDI1And TTI1The 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 92DI1.Afterwards, control module 300 can be according to refrigerant density ρ1With
Refrigerant temperature TDI1And 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)(hSO-hCI1)+C0X(TSO-TCI1)]-C[m1(T2-T1)+m2(T4-T3)], wherein, hSO=f1
(TSO,PSO),hCI1=f2(TCI1,PCI1);
Δ P1=PCO1-PCI1;
χ1=f3(hCO1,TCO1,PCO1), 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, hSOIt it is the refrigeration of the second inner tube 481 outlet
Agent is than enthalpy, hSOCharacteristic and refrigerant temperature T of the second inner tube 481 outlet with cold-producing mediumSO, second inner tube 481 outlet
Refrigerant pressure PSORelevant, hCI1It is that the cold-producing medium of the first heat-exchanging component 43 entrance to be measured is than enthalpy, hCI1Characteristic with cold-producing medium
And first refrigerant temperature T of heat-exchanging component 43 entrance to be measuredCI1, the refrigerant pressure of the first heat-exchanging component 43 entrance to be measured
PCI1Relevant, 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, hCO1It is that the cold-producing medium of the first heat-exchanging component 43 to be measured outlet is than enthalpy, hCO1Characteristic with cold-producing medium
And first heat-exchanging component 43 to be measured outlet refrigerant temperature TCO1, the refrigerant pressure of the first heat-exchanging component 43 to be measured outlet
PCO1Relevant.
In conjunction with the embodiment of Fig. 3, M1Can be measured by the 3rd flow measuring probe 61 and obtain, TSOThe 3rd temperature survey can be passed through
Device 511 is measured and is obtained, PSOCan be measured by the 3rd pressometer 512 and obtain, TCI1Can be surveyed by the first temperature meter 421
Measure, PCI1Can be obtained by measurement by the first pressometer 422, TCO1Can obtain by measuring the second temperature meter 441,
PCO1Can 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 measuredCI1, the refrigerant pressure P of the first heat-exchanging component 43 entrance to be measuredCI1、
Refrigerant temperature T of the second inner tube 481 outlet the most supercool control assembly 48 outletSO, the 3rd inner tube 861 i.e. assisted evaporative of outlet changes
The refrigerant pressure P of hot assembly 86 outletEO2。
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 TCI1Setting 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 measuredCI1Reach 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 measuredCI1Setting value adjust self change
Heat, so that PCI1Reach corresponding setting value;Refrigerant temperature T that supercool control assembly 48 exports according to supercool control assembly 48SO
Setting value adjust self heat exchange amount, so that TSOReach corresponding setting value;First auxiliary throttle mechanism assembly 62 is according to auxiliary
The refrigerant pressure P of evaporation and heat-exchange assembly 86 outletEO2Adjust aperture, so that PEO2Reach 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 measuredCI1, the refrigerant pressure of the first heat-exchanging component 43 entrance to be measured
PCI1, first heat-exchanging component 43 to be measured outlet refrigerant temperature TCO1, first heat-exchanging component 43 to be measured outlet refrigerant pressure
PCO1, second inner tube 481 outlet refrigerant temperature TSO, second inner tube 481 outlet refrigerant pressure PSO, 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)(hSO-hCI1)+C0X(TSO-TCI1)]-C[m1(T2-T1)+m2(T4-T3)],
hSO=f1(TSO,PSO),
hCI1=f2(TCI1,PCI1);
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=PCO1-PCI1;
And outlet cold-producing medium mass dryness fraction χ of condensing heat exchanger to be measured is calculated by below equation1:
χ1=f3(hCO1,TCO1,PCO1), 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)hEO2+C0XTEO2]-(1-X)(M1hTI1+M2hTI2)-C0M1XTTI1-C0M2XTTI2-Q0, its
In, hEO2=f4(TEO2,PEO2), hTI1=f5(TTI1,PTI1), hTI2=f6(TTI2,PTI2);
Δ P2=PEO1-PEI1;
Wherein, hEIL=f7(TEI), hEIG=f8(TEI);
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, hEO2It is that the cold-producing medium of the 3rd inner tube 861 outlet is than enthalpy, hEO2Characteristic with cold-producing medium
And the 3rd inner tube 861 outlet refrigerant temperature TEO2, the 3rd inner tube 861 outlet refrigerant pressure PEO2Relevant, hTI1It is
The cold-producing medium of one throttle mechanism observing and controlling parts 60 entrance is than enthalpy, hTI1Characteristic and the observing and controlling of first throttle mechanism with cold-producing medium
Refrigerant temperature T of parts 60 entranceTI1, the refrigerant pressure P of first throttle mechanism observing and controlling parts 60 entranceTI1Relevant, hTI2With
Refrigerant property and refrigerant temperature T of second throttle body observing and controlling parts 70 entranceTI2With second throttle body observing and controlling parts
The refrigerant pressure P of 70 entrancesTI2Relevant, C0For the specific heat capacity of refrigerator oil, Q0For the heating power of primary heater 862, PEO1
It is the refrigerant pressure of the second heat-exchanging component 84 to be measured outlet, hEILFor evaporative heat exchanger inlet to be measured saturated liquid refrigerant ratio
Enthalpy, hEIGFor the saturated gaseous refrigerant of evaporative heat exchanger inlet to be measured than enthalpy, hEILAnd hEIGAll with the second heat-exchanging component to be measured
Refrigerant temperature T of 84 entrancesEIRelevant.
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, TEO2Can be measured by the 9th temperature meter 871 and obtain, PEO2Can be surveyed by the 9th pressometer 872
Measure, TTI1Can be measured by the 3rd temperature meter 511 and obtain, PTI1Can be measured by the 3rd pressometer 512 and obtain,
TTI2Can be measured by the 8th temperature meter 721 and obtain, PTI2Can be measured by the 8th pressometer 722 and obtain, Q0Can lead to
Overpower measuring device measurement obtains, PEO1Can be measured by the tenth pressometer 852 and obtain, TEI1By 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 entranceCI2(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 PCI1), first auxiliary throttle mechanism assembly 62 entrance refrigerant temperature TTI(the oil-containing that the i.e. the 3rd temperature meter 511 is measured
Refrigerant temperature T of rate observing and controlling parts 90 entranceTI1), the refrigerant pressure P of the second heat-exchanging component 84 entrance to be measuredEI1, in the 3rd
Refrigerant temperature T of pipe 861 outlet i.e. assisted evaporative heat-exchanging component 86 outletEO2。
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 entranceCI2Setting
Value and refrigerant temperature T of the first auxiliary throttle mechanism assembly 62 entranceTISetting value adjust self heat exchange amount, so that PCI2
And TTIReach 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 PEI1Setting value adjust aperture, so that PEI1Reach corresponding setting value;Assisted evaporative heat-exchanging component 86 changes according to assisted evaporative
Refrigerant temperature T of hot assembly 86 outletEO2Setting value adjust primary heater 862 add heat, so that TEO2Reach 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
TEO2, the 3rd inner tube 861 outlet refrigerant pressure PEO2, refrigerant temperature T of first throttle mechanism observing and controlling parts 60 entranceTI1、
The refrigerant pressure P of first throttle mechanism observing and controlling parts 60 entranceTI1, the cold-producing medium of second throttle body observing and controlling parts 70 entrance
Temperature TTI2, the refrigerant pressure P of second throttle body observing and controlling parts 70 entranceTI2, second heat-exchanging component 84 to be measured outlet system
Refrigerant pressure PEO1Refrigerant temperature T with the second heat-exchanging component 84 entrance to be measuredEI1And 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)hEO2+C0XTEO2]-(1-X)(M1hTI1+M2hTI2)-C0M1XTTI1-C0M2XTTI2-Q0,
hEO2=f4(TEO2,PEO2),
hTI1=f5(TTI1,PTI1),
hTI2=f6(TTI2,PTI2);
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=PEO1-PEI1;
And entrance cold-producing medium mass dryness fraction χ of evaporating heat exchanger to be measured is calculated by below equation2:
hEIL=f7(TEI), hEIG=f8(TEI)。
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:
Wherein, CD1For 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, PTI1For the refrigerant pressure of first throttle mechanism observing and controlling parts 60 entrance,
PTO1Refrigerant 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, PTI1Can be measured by the 3rd pressometer 512 and obtain, PTO1Can 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 entranceTI1, first
The refrigerant pressure P of throttle mechanism observing and controlling parts 60 entranceTI1, the refrigerant pressure of first throttle mechanism observing and controlling parts 60 outlet
PTO1And the 3rd inner tube 861 outlet i.e. assisted evaporative heat-exchanging component 86 outlet refrigerant temperature TEO2。
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 mechanismTO1Setting value adjust self operating frequency so that
PTO1Reach 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 entranceTI1Setting value and the refrigerant pressure of first throttle mechanism observing and controlling parts 60 entrance
PTI1Setting value adjust self heat exchange amount, so that TTI1And PTI1Reach corresponding setting value;Assisted evaporative heat-exchanging component 86 basis
Refrigerant temperature T of assisted evaporative heat-exchanging component 86 outletEO2Setting value adjust primary heater 862 add heat so that
TEO2Reach 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 PTI1, the refrigerant pressure P of first throttle mechanism observing and controlling parts 60 outletTO1。
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:
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:
Wherein, CD2For 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, PTI2For the refrigerant pressure of second throttle body observing and controlling parts 70 entrance,
PTO2Refrigerant 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, PTI2Can by the 8th pressometer 722 measure obtain, PTO2Can 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 entranceTI2, second
Refrigerant temperature T of inner tube 481 outlet the most supercool control assembly 48 outletSO, 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 outletTO2, the 3rd inner tube 861 i.e. assisted evaporative of outlet
Refrigerant temperature T of heat-exchanging component 86 outletEO2。
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 entranceTI2, 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 outletSO, 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 outletTO2, the 3rd inner tube 861 i.e. assisted evaporative heat exchange of outlet
Refrigerant temperature T of assembly 86 outletEO2。
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(hTI2,TTI2,PTI2),
Wherein, χ3It is the cold-producing medium mass dryness fraction of the second throttle mechanism entrance to be measured, hTI2For second throttle body observing and controlling parts 70
The cold-producing medium of entrance is than enthalpy, hTI2With refrigerant property and the refrigerant temperature of second throttle body observing and controlling component entry 70
TTI2Refrigerant pressure P with second throttle body observing and controlling component entry 70TI2Relevant, 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, hCI2For
The cold-producing medium of the first inner tube 461 entrance is than enthalpy, hCI2With refrigerant property and the refrigerant temperature of the first inner tube 461 entrance
TCI2Refrigerant pressure P with the first inner tube 461 entranceCI2Relevant, 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, TTI2Can by the 8th temperature meter 721 measure obtain, PTI2Surveyed 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, TCI2Can by second temperature meter 441 measure obtain, PCI2Can 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 200TI2, second throttle body observing and controlling portion
The refrigerant pressure P of part entrance 70TI2, 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 entranceCI2, first
The refrigerant pressure P of inner tube 461 entranceCI2, 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(hTI2,TTI2,PTI2),
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 PTO2Setting value adjust self operating frequency, so that PTO2Reach 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 measuredTI2Setting value and mistake
Refrigerant temperature T of cold control assembly 48 outletSOSetting value adjust self heat exchange amount, so that PTI2And TSOReach correspondence to set
Definite value;Refrigerant temperature T that assisted evaporative heat-exchanging component 86 exports according to assisted evaporative heat-exchanging component 86EO2Setting value adjust
Primary heater 862 add heat, so that TEO2Reach 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 measuredTO2Set
Definite value adjusts the operating frequency of self, so that PTO2Reach 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 measuredTI2Setting value, supercool control assembly
Refrigerant temperature T of 48 outletsSOSetting 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 PTI2、TSOAnd χ3Reach corresponding setting value;Assisted evaporative heat-exchanging component 86 changes according to assisted evaporative
Refrigerant temperature T of hot assembly 86 outletEO2Setting value adjust primary heater 862 add heat, so that TEO2Reach 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 PTI2, second throttle body observing and controlling parts 70 outlet refrigerant pressure PTO2。
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:
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)(hSO-hCI1)+C0X(TSO-TCI1)]-C[m1(T2-T1)+m2(T4-T3)];
Δ P1=PCO1-PCI1;
χ1=f3(hCO1,TCO1,PCO1), 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, hSOIt it is the cold-producing medium specific enthalpy of the second inner tube outlet
Value, hSOCharacteristic and refrigerant temperature T of the second inner tube outlet with cold-producing mediumSO, the refrigerant pressure P of the second inner tube outletSO
Relevant, hCI1It is that the cold-producing medium of the first heat-exchanging component entrance to be measured is than enthalpy, hCI1To be measured with the characteristic of cold-producing medium and first change
Refrigerant temperature T of hot module inletCI1, the refrigerant pressure P of the first heat-exchanging component entrance to be measuredCI1Relevant, 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, hCO1It it is the first heat-exchanging component to be measured
The cold-producing medium of outlet is than enthalpy, hCO1Refrigerant temperature T of heat-exchanging component to be measured with the characteristic of cold-producing medium and first outletCO1,
The refrigerant pressure P of the first heat-exchanging component to be measured outletCO1Relevant.
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)hEO2+C0XTEO2]-(1-X)(M1hTI1+M2hTI2)-C0M1XTTI1-C0M2XTTI2-Q0;
Δ P2=PEO1-PEI1;
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, hEO2It is that the cold-producing medium of the 3rd inner tube outlet is than enthalpy, hEO2Characteristic and with cold-producing medium
Refrigerant temperature T of three inner tube outletEO2, the refrigerant pressure P of the 3rd inner tube outletEO2Relevant, hTI1Survey for first throttle mechanism
The cold-producing medium of control component entry is than enthalpy, hTI1Characteristic and the refrigeration of first throttle mechanism observing and controlling component entry with cold-producing medium
Agent temperature TTI1, the refrigerant pressure P of first throttle mechanism observing and controlling component entryTI1Relevant, hTI2With refrigerant property and second
Refrigerant temperature T of throttle mechanism observing and controlling component entryTI2Refrigerant pressure P with second throttle body observing and controlling component entryTI2
Relevant, C0For the specific heat capacity of refrigerator oil, Q0For the heating power of primary heater, PEO1It it is the second heat-exchanging component to be measured outlet
Refrigerant pressure, hEILFor the saturated liquid refrigerant of evaporative heat exchanger inlet to be measured than enthalpy, hEIGEvaporative heat exchanger inlet to be measured
Saturated gaseous refrigerant is than enthalpy, hEILAnd hEIGAll with refrigerant temperature T of the second heat-exchanging component entrance to be measuredEI1Relevant.
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:
Wherein, CD1For 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, PTI1For the refrigerant pressure of first throttle mechanism observing and controlling component entry, PTO1It 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:
Wherein, CD2For 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, PTI2For the refrigerant pressure of second throttle body observing and controlling component entry, PTO2It 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(hTI2,TTI2,PTI2),
Wherein, χ3It is the cold-producing medium mass dryness fraction of the second throttle mechanism entrance to be measured, hTI2Enter for second throttle body observing and controlling parts
The cold-producing medium of mouth is than enthalpy, hTI2With refrigerant property and refrigerant temperature T of second throttle body observing and controlling component entryTI2With
The refrigerant pressure P of second throttle body observing and controlling component entryTI2Relevant, 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, hCI2It is that the first inner tube enters
The cold-producing medium of mouth is than enthalpy, hCI2With refrigerant property and refrigerant temperature T of the first inner tube inletCI2With the first inner tube inlet
Refrigerant pressure PCI2Relevant, 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.