CN206146772U - Measure device of refrigerant oil and mixed medium of refrigerant - Google Patents

Measure device of refrigerant oil and mixed medium of refrigerant Download PDF

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Publication number
CN206146772U
CN206146772U CN201621072957.8U CN201621072957U CN206146772U CN 206146772 U CN206146772 U CN 206146772U CN 201621072957 U CN201621072957 U CN 201621072957U CN 206146772 U CN206146772 U CN 206146772U
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CN
China
Prior art keywords
pressure
glass tubing
cold
producing medium
valve
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CN201621072957.8U
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Chinese (zh)
Inventor
郭小青
史正良
苏圣桐
单彩侠
陈晓晓
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珠海格力节能环保制冷技术研究中心有限公司
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Priority to CN201621072957.8U priority Critical patent/CN206146772U/en
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Publication of CN206146772U publication Critical patent/CN206146772U/en

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Abstract

The utility model relates to a refrigerant test technical field especially relates to a measure device of refrigerant oil and mixed medium of refrigerant. A measure device of refrigerant oil and mixed medium of refrigerant, the pressurization container includes withstand voltage glass pipe, the viscosity measurement device includes capillary viscometer and elevating gear, capillary viscometer is located the inside of withstand voltage glass pipe, elevating gear can follow magnet that the pipe wall reciprocated and can drive the metal that capillary viscometer reciprocated under the strength magnets effect in withstand voltage glass outside of tubes portion including setting up. The device has simply, convenient operation, safe and reliable, the maximum pressure that the viscosity measurement device can bear depends on the sealed container's of pressurization device bearing capacity, and is irrelevant with capillary viscometer, can be used to the survey of liquid movement viscosity under the high -pressure state.

Description

A kind of device of measurement refrigerator oil and cold-producing medium blending agent
Technical field
This utility model is related to cold-producing medium technical field of measurement and test, more particularly to a kind of measurement refrigerator oil is mixed with cold-producing medium The device of medium.
Background technology
In the research field of alternative refrigerant, cold-producing medium is constantly subjected to extensively pass with the dissolution characteristics of corresponding refrigerator oil Note.Air conditioning system typically requires that refrigerator oil has certain intermiscibility with cold-producing medium, and both intermiscibilities are good, and cold-producing medium is in fridge In oil, meltage is big, and system oil return is fast, but the another question that may cause is, cold-producing medium meeting dilution refrigeration machine oil, makes Viscosity into both mixture declines, and then affects its greasy property.In the face of the diversified and corresponding fridge of new refrigerant The serious stern form of oil research and development, quickly and accurately obtains in cold-producing medium and corresponding refrigerator oil at different temperatures and pressures Dissolution characteristics data (including the viscosity of dissolubility of the cold-producing medium in refrigerator oil and both mixed solutions) are to refrigerator oil Research and development and the design of compressor are all significant.
There is presently no can simultaneously in test for freeze machine oil cold-producing medium dissolubility and both mixed solution viscosity regulator Device.Chinese Patent Application No. 201210100945.1 discloses a kind of device of cold-producing medium dissolubility in measurement refrigerator oil and survey Determine method, but the device can not determine the viscosity index of mixed solution, and the test pressure limitation of the method is very big.
Utility model content
The purpose of this utility model is the device and method for proposing a kind of measurement refrigerator oil and cold-producing medium blending agent, The viscosity test device being made up of capillary viscosimeter, metal and Magnet, simple structure, load performance are good, test repeatability Height, accurately and reliably, the maximum pressure that the viscosity test device can bear depends on the close of high pressure seal to test result The bearing capacity of envelope container, it is unrelated with capillary viscosimeter, can be used for the measure of liquid motion viscosity under high pressure conditions.The device With being simple and convenient to operate, it is safe and reliable, the meltage of cold-producing medium in refrigerator oil can not only be accurately measured, moreover it is possible to survey Determine the dissolving viscosity of mixed solution under high pressure conditions.The capillary of different tube diameters can be selected according to the range of viscosities of measured liquid Pipe, measures applied widely.
It is that, up to this purpose, this utility model is employed the following technical solutions:
A kind of device of measurement refrigerator oil and cold-producing medium blending agent, including constant temperature system and be arranged in constant temperature system High pressure sealing container, the high pressure sealing container includes pressure glass tubing, is provided with viscosity test in the pressure glass tubing Device, the viscosity test device include capillary viscosimeter and lowering or hoisting gear, and the capillary viscosimeter is located at pressure glass The inside of pipe, the lowering or hoisting gear include being arranged at outside pressure glass tubing and along the Magnet that tube wall is moved up and down and can be arranged at resistance to What pressure glass tube was connected with capillary viscosimeter can drive capillary viscosimeter to move up and down under magnet adsorption effect Metal.
One of preferred version as the technical program, the Magnet uniform ring are located at the outside of pressure glass tubing, described The center of gravity of the center of gravity of metal and the capillary viscosimeter on a vertical curve, to ensure that capillary viscosimeter keeps vertical shape State is moved up and down.
One of preferred version as the technical program, the top seal of the pressure glass tubing are connected with top connection, institute State and in top connection, offer the through hole being connected with first connector of four-way connection, the second connection of the four-way connection Mouth, the 3rd connector and the 4th connector are connected to pressure transducer, temperature sensor and needle-valve, and the needle-valve is by connecting Adapter road connection evacuation and punching note refrigerant system.
One of preferred version as the technical program, the evacuation and punching note refrigerant system include vacuum pump and system Refrigerant container, the vacuum pump connect needle-valve by vacuum line, and the first valve is additionally provided with the vacuum line;The system Refrigerant container connects needle-valve by refrigeration pipe, and the second valve is additionally provided with the refrigeration pipe.
One of preferred version as the technical program, the outside of the pressure glass tubing are also socketed with lower contact, described On fixed support, the constant temperature system includes thermostatic bath and the temperature bath being arranged in thermostatic bath to the external connection of lower contact Medium, offers transparent window on the cell wall of the thermostatic bath, and the fixed support is located in thermostatic bath.
One of preferred version as the technical program, is connected with pressure display instrument table on the pressure transducer, described Temperature display meter is connected with temperature sensor, the lowering or hoisting gear is also associated with the elevating control outside thermostatic bath Device.
A kind of measurement refrigerator oil and the method for cold-producing medium blending agent, comprise the steps:
Step 1, according to the volume of pressure glass tubing, weigh in the balance and take quantitative refrigerator oil to be measured in pressure glass tubing Interior, the quality of refrigerator oil is designated as m0, while being put into capillary viscosimeter, and capillary viscosimeter is totally submerged in fridge In oil;
Step 2, pressure glass tubing and pressure transducer, temperature sensor, needle-valve are utilized into top connection, lower contact, sealing Pad, four-way connection are assembled, it is ensured that sealing, are weighed combination unit quality and are designated as m1
Step 3, needle-valve is connected with vacuum pump and cold-producing medium gas cylinder with connecting line, closes the second valve, open first Valve and needle-valve, evacuation 25min-35min make pressure glass tubing and the vacuum in pipeline to vacuum is set, close first Valve, opens the second valve, injects the refrigerant in pressure glass tubing, after injection is a certain amount of, closes needle-valve, removes connecting tube Road, the quality combined the unit after weighing injection cold-producing medium are designated as m2, the mass M=m of cold-producing medium2-m1
Step 4, the temperature of setting thermostatic bath are measured temperature, combinations thereof device are put in thermostatic bath, constant temperature Temperature bath medium in groove will can flood glass pressure tube top connection;
Step 5, install lifting controller above thermostatic bath panel, lifting controller is connected with Magnet, by Magnet Press close to pressure glass tubing bottom contour with the metal, raising and lowering operation is carried out to lowering or hoisting gear, drive capillary tube to enter Row raising and lowering so that liquid bubble-free in capillary viscosimeter;
Step 6, capillary viscosimeter is lifted using apparatus for controlling of lifting and Magnet and disengage it from outside liquid, intraluminal fluid Body is flowed out from bottom, starts timing with stopwatch when liquid level drops to viscometer high scale line, when liquid level drops under viscometer Stop timing during graduation mark;This process replication at least three times, the meansigma methodss for taking the surveyed time are refrigerator oil and cold-producing medium The average flow time t of blending agent;
Step 7, refrigerator oil and cold-producing medium blending agent kinematic viscosity are calculated using following formula:
ν=At-B/t, ν-kinematic viscosity, mm2/s;T-liquid level is through the time needed for two graduation marks, s;A, B-viscous Degree meter constant.
One of preferred version as the technical program, also including step 8, when temperature sensor reaches design temperature, Every about 15min observe a pressure transducer numerical value, when the display value stabilization 25min-35min of pressure display instrument table it is constant During change, it is believed that reached balance, liquid level h in pressure value P (MPa) now and glass tubing is recorded.
Step 9, the density p that gaseous refrigerant is determined according to temperature and corresponding pressure, according to pressure glass tubing, connect The cumulative volume and refrigerator oil on head tube road determines gaseous refrigerant volume V with liquid refrigerant liquid level;
C, using following formula calculate cold-producing medium dissolubility (dissolving mass fraction):
In formula:X- cold-producing medium dissolubility;m0- refrigerator oil quality, unit are g;The quality of M- cold-producing mediums, g;ρ-gaseous state system The density of cryogen, unit are g/mL;The volume of V- gaseous refrigerants, unit are mL.
One of preferred version as the technical program, in the step 6, if bubble occurs in capillary viscosimeter, weighs Newly adjust to bubble-free and start timing again.
One of preferred version as the technical program, before step 1, liquid that need to be first with known-viscosity is viscous to capillary tube Degree meter constant A, B are demarcated, and directly could calculate blending agent viscosity using above formula.
Beneficial effect:The viscosity test device being made up of capillary viscosimeter, metal and Magnet, simple structure, pressure-bearing property Can be good, test repeatability is high, and accurately and reliably, after capillary viscosimeter is raised from liquid level, capillary tube glues test result Degree meter body internal and external pressure balance, the liquid in capillary viscosimeter only starts dirty under gravity, and recording liquid flows through Time used by the upper and lower graduation mark of viscometer can calculate its kinematic viscosity value.The viscosity test device can bear most Big pressure depends on the bearing capacity of the sealing container of high pressure seal, unrelated with capillary viscosimeter, can be used for high pressure shape The measure of liquid motion viscosity under state.The device have be simple and convenient to operate, it is safe and reliable, can not only accurately measure cold Freeze the meltage of cold-producing medium in machine oil, moreover it is possible to determine the dissolving viscosity of mixed solution under high pressure conditions.Can be according to measured liquid Range of viscosities select different tube diameters capillary tube, measure it is applied widely.
Description of the drawings
Fig. 1 is the device of a kind of measurement refrigerator oil that this utility model embodiment 1 is provided and cold-producing medium blending agent Structural representation.
In figure:
1st, thermostatic bath;2nd, temperature bath medium;3rd, fixed support;4th, pressure glass tubing;5th, capillary viscosimeter;6th, glass tubing Lower contact;7th, glass tubing top connection;8th, four-way connection;9th, pressure transducer;10th, pressure display instrument table;11st, needle-valve;12nd, connect Pipeline;13rd, the first valve;14th, the second valve;15th, vacuum pump;16th, cryogen vessel;17th, temperature sensor;18th, temperature shows Show instrument;19th, lifting controller;20th, Magnet;21st, metal;22nd, refrigerator oil and cold-producing medium blending agent.
Specific embodiment
The technical solution of the utility model is further illustrated below in conjunction with the accompanying drawings and by specific embodiment.
Embodiment 1
This utility model provides a kind of device of measurement refrigerator oil and cold-producing medium blending agent, including constant temperature system and The high pressure sealing container being arranged in constant temperature system, the high pressure sealing container include pressure glass tubing 4, the pressure glass tubing Viscosity test device is provided with 4, the viscosity test device includes capillary viscosimeter 5 and lowering or hoisting gear, the capillary tube Viscometer 5 is located at the inside of pressure glass tubing 4, and the lowering or hoisting gear includes being arranged at outside pressure glass tubing 4 can be along tube wall What the Magnet 20 of lower movement and being arranged inside pressure glass tubing 4 was connected with capillary viscosimeter 5 can make in the absorption of Magnet 20 With the lower metal 21 for driving capillary viscosimeter 5 to move up and down.The metal 21 is viscous in capillary tube with the encapsulated by structures of becket The bottom of degree meter 5, the becket is iron hoop, and 20 uniform ring of the Magnet is located at the outside of pressure glass tubing 4, the metal 21 Center of gravity and the capillary viscosimeter 5 center of gravity on a vertical curve, to ensure that capillary viscosimeter 5 keeps vertical state Move up and down.
The viscosity test device being made up of capillary viscosimeter 5, metal 21 and Magnet 20, simple structure, load performance are good, Test repeatability is high, test result accurately and reliably, after capillary viscosimeter 5 is raised from liquid level, capillary viscosimeter 5 Body internal and external pressure balance, the liquid in capillary viscosimeter 5 only starts dirty under gravity, and recording liquid flows through viscosity Its kinematic viscosity value is calculated by counting the time used by upper and lower graduation mark.The maximum pressure that the viscosity test device can bear Power depends on the bearing capacity of the sealing container of high pressure seal, unrelated with capillary viscosimeter 5, can be used under high pressure conditions The measure of liquid motion viscosity.The device have be simple and convenient to operate, it is safe and reliable, fridge can not only be accurately measured The meltage of cold-producing medium in oil, moreover it is possible to determine the dissolving viscosity of mixed solution under high pressure conditions.Can be according to the viscous of measured liquid Degree scope selects the capillary tube of different tube diameters, measures applied widely.
The capillary tube material of the capillary viscosimeter 5 should transparent, high-low temperature resistant, fluorine-resistant, preferred quartz glass.Capillary tube In viscometer 5, the selection of capillary tube caliber and the demarcation of constant be according to Ha Gen-poiseuille's law, if fluid is only in action of gravity Under in circle laminar flow in pipe flowing, then the kinematic viscosity ν=At-B/t of fluid, the pipe range, caliber, fluid when capillary tube is in capillary After the volume flow through in pipe determines, A, B are constant.The pipe range of capillary tube, caliber utilize the relation between caliber and reynolds number Re And Re<2000 designing adjustment, and constant A, B adopt relative measurement, i.e., using the normal stream of two kinds or more known-viscosities Body comes by viscometer, measures medium and flows through the time used by the upper and lower graduation mark of viscometer, according to above-mentioned Ha Gen-poiseuille's law Equation can determine that A, B.After capillary constant A, B determine, the time that fluid media (medium) to be measured is flow through in this capillary tube is measured, The kinematic viscosity of testing medium can be calculated.Through repeatedly test, using the device it is surveyed with batch refrigerator oil with freeze The limit error of the dissolution characteristics data of agent is less than 5%.
The top seal of the pressure glass tubing 4 is connected with top connection 7, offers and four-way connection 8 in the top connection 7 The through hole that is connected of first connector, the outside of the pressure glass tubing 4 is also socketed with lower contact 6, the lower contact 6 In the lower section of the top connection, and the external connection of the lower contact 6 is on fixed support 3.
4 sealed bottom of pressure glass tubing, the top flange or welded flange of the pressure glass tubing 4, its surface is along height It is described resistance to that direction has from bottom the scale for up gradually increasing, the top connection 6 and the lower contact 7 to be threadedly attached in On pressure glass tubing, and carried out by gasket seal compression between the top connection 6 and the lower contact 7 and pressure glass tubing 4 close Envelope connection, the gasket seal material preferably polytetrafluoroethylene pad, the overall voltage endurance capability of the pressure glass tubing 4 are not less than 10Mpa。
The pressure glass tubing 4 has good light transmission, resistant of high or low temperature, fluoride tolerance to meet high/low temperature, high-low pressure Test environment needs, its material is preferably quartz glass, more preferably had using pressure glass tubing 4 made by sapphire glass There are more preferable light transmission, resistant of high or low temperature, fluoride tolerance.
Second connector of the four-way connection 8, the 3rd connector and the 4th connector are connected to pressure transducer 9th, temperature sensor 17 and needle-valve 11, the needle-valve 11 connect evacuation and punching note refrigerant system by connecting line 12.Institute State connecting line 12 and be preferably pressure hose, the four-way connection 8, needle-valve 11, pressure hose voltage endurance capability >=10MPa, To meet the requirement of the high voltage performance inside high pressure sealing system.
Pressure display instrument table 10 is connected with the pressure transducer 9, temperature is connected with the temperature sensor 17 and is shown Show instrument 18, with the pressure and temperature shown in pressure glass tubing 4 accurately and timely, it is ensured that the accuracy of test environment.It is described Lowering or hoisting gear is also associated with the lifting controller 19 outside thermostatic bath 1.The lifting controller 19 is located at the constant temperature The outside of bath 1, is easy to tester to be operated.
The constant temperature system includes thermostatic bath 1 and the temperature bath medium 2 being arranged in thermostatic bath 1, and the fixation Frame 3 is located in thermostatic bath 1.Transparent window is offered on the cell wall of the thermostatic bath 1, perseverance is observed at any time for experimenter Current intelligence in warm bath 1.Temperature bath medium temperature fluctuation degree and unevenness in thermostatic bath 1 is less than ± 0.3 DEG C.Constant temperature Temperature bath medium 2 in bath 1 is selected according to test temperature condition:When measurement temperature scope is -50~20 DEG C, temperature bath medium is excellent Select high-purity ethanol, it is preferred that the alcohol content of high-purity ethanol is more than 99.5%;When measurement temperature scope is 20~90 DEG C When, the preferred water of temperature bath medium.
The evacuation and punching note refrigerant system include vacuum pump 15 and cryogen vessel 16, and the vacuum pump 15 passes through Vacuum line connects needle-valve 11, and the first valve 13 is additionally provided with the vacuum line;The cryogen vessel 16 is by refrigeration Pipeline connects needle-valve 11, and the second valve 14 is additionally provided with the connecting line 12.Tester is by controlling 13 He of the first valve Vacuum pump 15 realizes that the air pressure in the pressure glass tubing 4 reaches the test scope of setting, and tester is by controlling the second valve 14 and cryogen vessel 16 control the content of the cold-producing medium in pressure glass tubing 4.
A kind of method that this utility model additionally provides measurement refrigerator oil and cold-producing medium blending agent, including following step Suddenly:
Ready work is needed before step 1 is carried out:Clean pressure glass tubing 4, capillary viscosimeter 5 and associated Accessory is connect, is dried stand-by;If constant A, B of capillary viscosimeter 5 is not accurately tested out in test before, need first Constant A, B of the capillary viscosimeter 5 adopted to this test is demarcated, and directly could calculate blending agent using above formula Viscosity.
Step 1, according to the volume of pressure glass tubing 4, weigh in the balance and take quantitative refrigerator oil to be measured in pressure glass tubing 4 Interior, the quality of refrigerator oil is designated as m0, while being put into capillary viscosimeter 5, and capillary viscosimeter 5 is totally submerged in freezing In machine oil;The caliber of capillary viscosimeter 5 is preferably 0.2~1mm.
Step 2, by pressure glass tubing 4 and pressure transducer 9, temperature sensor 17, needle-valve 11 using top connection 7, under connect 6, gasket seal, four-way connection 8 are assembled, it is ensured that sealing, are weighed combination unit quality and are designated as m1;It is described combination unit be except Device outside constant temperature system.
Step 3, needle-valve 11 is connected with vacuum pump 15 and cold-producing medium gas cylinder with pressure hose, closes the second valve 14, beat Open the first valve 13 and needle-valve 11, evacuation 25min-35min, it is preferred that evacuation 30min, make pressure glass tubing 4 and with it is resistance to To vacuum is set, when being embodied as, vacuum values are controlled in 12-15Pa, preferably the vacuum in pipeline that pressure glass tubing 4 is connected Vacuum values be 13.3Pa.The first valve 13 is closed, the second valve 14 is opened, cold-producing medium is passed through into pin from cryogen vessel 16 Valve 11 is injected in pressure glass tubing 4, after injection is a certain amount of, is closed needle-valve 11, is removed pressure hose, after weighing injection cold-producing medium The quality of combination unit is designated as m2, the mass M=m of cold-producing medium2-m1
Step 4, the temperature of setting thermostatic bath 1 are measured temperature, and combinations thereof device is put in thermostatic bath 1, permanent Temperature bath medium 2 in warm groove will can flood glass pressure tube top connection 7;When measurement temperature scope is -50~20 DEG C, temperature bath is situated between It is of fine quality to select high-purity ethanol, it is preferred that the alcohol content of high-purity ethanol is more than 99.5%;When measurement temperature scope is 20~90 DEG C when, the temperature bath preferred water of medium.
Step 5, install lifting controller 19 above 1 panel of thermostatic bath, lifting controller 19 is connected with Magnet 20, Magnet 20 is pressed close to into 4 bottom of pressure glass tubing contour with the iron hoop, raising and lowering operation is carried out to lowering or hoisting gear, driven Capillary tube carries out raising and lowering so that liquid bubble-free in capillary viscosimeter 5.
Then the viscosity test and/or solubility test of corresponding refrigerator oil and cold-producing medium blending agent are carried out.
When carrying out the viscosity test of refrigerator oil and cold-producing medium blending agent, by the way of step 6, first with lifting control Capillary viscosimeter 5 is lifted the refrigerator oil and system disengaged it from inside pressure glass tubing 4 for device processed 19 and Magnet 20 Cryogen blending agent, liquid in pipe are flowed out from bottom, start timing with stopwatch when liquid level drops to viscometer high scale line, when Liquid level stops timing when dropping to graduation mark under viscometer;This process replication at least three times, takes the meansigma methodss of surveyed time For refrigerator oil and the average flow time t of cold-producing medium blending agent 22;If bubble occurs in capillary viscosimeter 5, adjust again It is whole to start timing to bubble-free again.
Viscosity is calculated accordingly using step 7, the refrigerator oil and 22 kinematic viscosity of cold-producing medium blending agent Calculated using following formula:
ν=At-B/t, ν-kinematic viscosity, mm2/s;T-liquid level is through the time needed for two graduation marks, s;A, B-viscous Degree meter constant.In capillary viscosimeter 5, the selection of capillary tube caliber and the demarcation of constant be according to Ha Gen-poiseuille's law, if Fluid only flows in circle laminar flow in pipe under gravity, then the kinematic viscosity ν=At-B/t of fluid, when the pipe of capillary tube After the volume that length, caliber, fluid are flow through in capillary tube determines, A, B are constant.
When carrying out the solubility test of refrigerator oil and cold-producing medium blending agent, tested using step 8:Temperature is treated first When degree sensor 17 reaches design temperature, the numerical value of a pressure transducer 9 is observed every about 15min, when pressure display instrument table When 10 display value stabilization 25min-35min does not change, think to have reached balance in the theory of testing, record pressure value now Liquid level h in P and glass tubing;
The density p of gaseous refrigerant is determined according to temperature and corresponding pressure, according to pressure glass tubing 4, jointing pipe The cumulative volume and refrigerator oil on road determines gaseous refrigerant volume V with liquid refrigerant liquid level;Calculated using following formula and freezed Agent dissolubility dissolves mass fraction:
In formula:X is cold-producing medium dissolubility;m0For refrigerator oil quality, unit is g;Quality of the M for cold-producing medium, unit is g;Density of the ρ for gaseous refrigerant, unit is g/mL;Volumes of the V for gaseous refrigerant, unit is mL.The jointing pipe Road volume refers to the cavity volume of four-way connection 8, glass tubing top connection 7 and glass tubing lower contact 7.
When being embodied as, by taking 68# refrigerator oils as an example, cold-producing medium R410A and refrigerator oil are measured at 40 DEG C and 80 DEG C Dissolubility and dissolving viscosity be shown in Table 1, table 2.
At 40 DEG C, dissolubility of the R410A under different pressures in 68# refrigerator oils and dissolving viscosity
Table 1
At 80 DEG C, dissolubility of the R410A under different pressures in 68# refrigerator oils and dissolving viscosity
Table 2
In sum, the viscosity test device being made up of capillary viscosimeter 5, metal 21 and Magnet 20, simple structure hold Pressure performance is good, and test repeatability is high, test result accurately and reliably, after capillary viscosimeter 5 is raised from liquid level, capillary 5 body internal and external pressure balance of pipe viscometer, the liquid in capillary viscosimeter 5 only start dirty, record liquid under gravity Body calculates its kinematic viscosity value by flowing through the time used by the upper and lower graduation mark of viscometer.The viscosity test device can hold The maximum pressure received depends on the bearing capacity of the sealing container of high pressure seal, unrelated with capillary viscosimeter 5, can be used for The measure of liquid motion viscosity under high pressure conditions.The device have be simple and convenient to operate, it is safe and reliable, can not only be exactly The meltage of cold-producing medium in measurement refrigerator oil, moreover it is possible to determine the dissolving viscosity of mixed solution under high pressure conditions.Can be according to being surveyed The range of viscosities of quantity of fluid selects the capillary tube of different tube diameters, measures applied widely.
Know-why of the present utility model is described above in association with specific embodiment.These descriptions are intended merely to explain this reality With new principle, and the restriction to this utility model protection domain can not be construed to by any way.Based on explanation herein, Those skilled in the art associates other specific embodiments of the present utility model by need not paying performing creative labour, These modes are fallen within protection domain of the present utility model.

Claims (6)

1. a kind of device of measurement refrigerator oil and cold-producing medium blending agent, including constant temperature system and it is arranged in constant temperature system High pressure sealing container, it is characterised in that the high pressure sealing container is included in pressure glass tubing (4), the pressure glass tubing (4) Viscosity test device is provided with, the viscosity test device includes capillary viscosimeter (5) and lowering or hoisting gear, and the capillary tube glues Degree meter (5) positioned at the inside of pressure glass tubing (4), the lowering or hoisting gear include being arranged at pressure glass tubing (4) is outside can be along pipe What Magnet (20) that wall is moved up and down and being arranged at was connected with capillary viscosimeter (5) inside pressure glass tubing (4) can be in magnetic The metal (21) for driving capillary viscosimeter (5) to move up and down under ferrum (20) adsorption.
2. the device of measurement refrigerator oil and cold-producing medium blending agent according to claim 1, it is characterised in that the magnetic Ferrum (20) uniform ring is located at the outside of pressure glass tubing (4), center of gravity and the capillary viscosimeter (5) of the metal (21) Center of gravity on a vertical curve, with ensure capillary viscosimeter (5) keep vertical state move up and down.
3. the device of measurement refrigerator oil and cold-producing medium blending agent according to claim 1 and 2, it is characterised in that institute The top seal for stating pressure glass tubing (4) is connected with top connection (7), offers and four-way connection (8) on the top connection (7) The through hole that first connector is connected, the second connector of the four-way connection (8), the 3rd connector and the 4th connector point Pressure transducer (9), temperature sensor (17) and needle-valve (11) are not connected with, the needle-valve (11) is connected by connecting line (12) Connect evacuation and punching note refrigerant system.
4. the device of measurement refrigerator oil and cold-producing medium blending agent according to claim 3, it is characterised in that described to take out Vacuum and punching note refrigerant system include vacuum pump (15) and cryogen vessel (16), and the vacuum pump (15) is by vacuum line Connection needle-valve (11), is additionally provided with the first valve (13) on the vacuum line;The cryogen vessel (16) is by refrigerator pipes Road connection needle-valve (11), is additionally provided with the second valve (14) on the refrigeration pipe.
5. the device of measurement refrigerator oil and cold-producing medium blending agent according to claim 3, it is characterised in that described resistance to Pressure glass tubing (4) outside be also socketed with lower contact (6), the external connection of the lower contact (6) on fixed support (3), institute State the temperature bath medium that constant temperature system includes thermostatic bath (1) and is arranged in thermostatic bath (1), the groove of the thermostatic bath (1) Transparent window is offered on wall, and the fixed support (3) is in thermostatic bath (1).
6. the device of measurement refrigerator oil and cold-producing medium blending agent according to claim 5, it is characterised in that the pressure Pressure display instrument table (10) is connected with force transducer (9), on the temperature sensor (17), temperature indicator is connected to Table (18), the lowering or hoisting gear are also associated with positioned at the outside lifting controller (19) of thermostatic bath (1).
CN201621072957.8U 2016-09-22 2016-09-22 Measure device of refrigerant oil and mixed medium of refrigerant CN206146772U (en)

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Application Number Priority Date Filing Date Title
CN201621072957.8U CN206146772U (en) 2016-09-22 2016-09-22 Measure device of refrigerant oil and mixed medium of refrigerant

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106168564A (en) * 2016-09-22 2016-11-30 珠海格力节能环保制冷技术研究中心有限公司 A kind of device and method measuring refrigerator oil and cold-producing medium blending agent

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106168564A (en) * 2016-09-22 2016-11-30 珠海格力节能环保制冷技术研究中心有限公司 A kind of device and method measuring refrigerator oil and cold-producing medium blending agent
CN106168564B (en) * 2016-09-22 2019-09-10 珠海格力电器股份有限公司 A kind of device and method measuring refrigerator oil and refrigerant blending agent

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