CN202256221U - Performance test device of refrigeration compressor - Google Patents
Performance test device of refrigeration compressor Download PDFInfo
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- CN202256221U CN202256221U CN2011203637507U CN201120363750U CN202256221U CN 202256221 U CN202256221 U CN 202256221U CN 2011203637507 U CN2011203637507 U CN 2011203637507U CN 201120363750 U CN201120363750 U CN 201120363750U CN 202256221 U CN202256221 U CN 202256221U
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- compressor
- evaporator
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- pressure vessel
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Abstract
The utility model discloses a performance test device of a refrigeration compressor, which comprises a first pressure container, a compressor and a condenser, wherein an evaporator is arranged at the upper part of the first pressure container; a calorimeter instrument is arranged at the first pressure container; the inlet of the evaporator is connected with the outlet of the condenser through an expansion valve; the outlet of the evaporator is connected with the inlet of the compressor, and the outlet of the compressor is connected with the inlet of the condenser; one or a plurality of pressure vessels is/are connected between the inlet ends of the expansion valve and the compressor in parallel, another heater is arranged at the bottom part(s) of the pressure vessel(s), and another evaporator is arranged at the upper part of the pressure container; the pressure container is provided with another calorimeter instrument; the inlet of the other evaporator is connected with the outlet condenser through the other expansion valve; and the outlet of the other evaporator is connected with the inlet of the compressor. The performance test device is provided with the combination of a plurality of calorimeter instruments and evaporators to widen the measurement range of a test stand, and can ensure the test precision and the test time.
Description
Technical field
The utility model relates to a kind of test unit of compressor, is specifically related to a kind of refrigeration compressor performance test apparatus.
Background technology
Adopt the frequency conversion refrigeration compressor in a large number in field of air conditioning at present, and the scope of frequency conversion is more and more wider, from 30 initial～90Hz, to 5～110Hz, the frequency conversion limit of power is more and more wideer.For the performance test of refrigeration compressor, generally adopt the method A second cold-producing medium calorimetric device method among the GB/T5773-2004 " positive displacement refrigerant compressor method for testing performance ".
The second cold-producing medium calorimetric device method adopts refrigeration compressor performance test apparatus as shown in Figure 1, comprises pressure vessel 1, compressor 2, condenser 3, and pressure vessel 1 bottom is provided with well heater 4, and well heater 4 is by the second amount of formulation submergence in the pressure vessel 1; The top of pressure vessel 1 is provided with evaporator 5; The top of pressure vessel 1 is provided with calorimeter 6;
The inlet of evaporator 5 connects the outlet of condenser 3 through expansion valve 7; The inlet end of expansion valve 7 is provided with tensimeter and thermometer;
The outlet of evaporator 5 connects the inlet of compressor 2, and the outlet of compressor 2 connects the inlet of condenser 3; The inlet end of compressor 2 is provided with tensimeter and thermometer, and the endpiece of compressor 2 is provided with tensimeter; The endpiece of evaporator 5 is provided with tensimeter and thermometer.
F wherein
2Be meant the liquidus temperature force value that expansion valve is preceding;
f
1Be meant the liquid phase force value of compressor outlet;
g
1Be meant the gas phase temperature force value of compressor inlet;
g
2Be meant the gas phase temperature force value of evaporator outlet.
The refrigerant flow that records by test:
Regulation operating mode actual measurement refrigerating capacity:
Wherein:
is meant compressor actual measurement refrigerating capacity;
h
G2Be meant the cold-producing medium specific enthalpy that is evaporated of leaving calorimeter or gas cooler;
h
F2Be meant the refrigerant liquid specific enthalpy that gets into expansion valve;
h
G1Be meant and under the base regime of regulation, get into the cold-producing medium specific enthalpy of compressor;
h
F1Be meant the refrigerant liquid specific enthalpy under the corresponding saturation temperature of Compressor Discharge Pressure (or dewpoint temperature) with fundamental test operating mode defined;
t
aBe meant average ambient temperature;
V
GaBe meant the actual specific volume of the refrigerant vapour that gets into compressor;
V
GlThe specific volume of refrigerant vapour when being meant with the corresponding suction operating mode of regulation basic experiment operating mode;
F
1Be meant the hot coefficient of leakage of calorimeter.
Can find out that from above-mentioned principle the thermal inertia of calorimeter has determined the time of test and the precision of measurement; As far as common calorimeter; If during range ratio (maximum capacity/minimum ability)＞10 times, its measuring accuracy will descend more than 1%, test period will increase more than 30% (heat balance time).Be the time of the precision and the process of the test of warranty test, the testing table range ratio of common single calorimeter all is less than or equal to 10.
But because the working range of frequency-changeable compressor is more and more wider, its range ratio far surpasses 10, greater than 10 occasion, is cost to sacrifice measuring accuracy and test period all for this generally.
The utility model content
The utility model technical matters to be solved provides a kind of refrigeration compressor performance test apparatus, and it can widen measurement range.
For solving the problems of the technologies described above, the technical solution of the utility model refrigeration compressor performance test apparatus is:
Comprise first pressure vessel, compressor, condenser, the bottom of first pressure vessel is provided with well heater, and the top of first pressure vessel is provided with evaporator; First pressure vessel is provided with calorimeter; The inlet of evaporator connects the outlet of condenser through expansion valve; The outlet of evaporator connects the inlet of compressor, and the outlet of compressor connects the inlet of condenser; Be parallel with one or more pressure vessels between the inlet end of said expansion valve and the inlet end of compressor, the pressure vessel bottom is provided with another well heater, and the top of pressure vessel is provided with another evaporator; Pressure vessel is provided with another calorimeter; The inlet of said another evaporator connects the outlet of said condenser through another expansion valve; The outlet of said another evaporator connects the inlet of said compressor.
The endpiece of said another evaporator is provided with tensimeter and thermometer.
The technique effect that the utility model can reach is:
The combination that the utility model is provided with a plurality of calorimeters and evaporator to be widening the measurement range of testing table, and can guarantee measuring accuracy and test period.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is done further detailed explanation:
Fig. 1 is the synoptic diagram of prior art refrigeration compressor performance test apparatus;
Fig. 2 is the synoptic diagram of the utility model refrigeration compressor performance test apparatus.
Description of reference numerals among the figure:
1 is pressure vessel, and 2 is compressor,
3 is condenser, and 4 is well heater,
5 is evaporator, and 6 is calorimeter,
7 is expansion valve, and 11 is pressure vessel,
14 is well heater, and 15 is evaporator,
16 is calorimeter, and 17 is expansion valve.
Embodiment
As shown in Figure 2, the utility model refrigeration compressor performance test apparatus comprises pressure vessel 1, compressor 2, condenser 3, and the bottom of pressure vessel 1 is provided with well heater 4, and well heater 4 is by the second amount of formulation submergence in the pressure vessel 1; The top of pressure vessel 1 is provided with evaporator 5; Pressure vessel 1 is provided with calorimeter 6;
The inlet of evaporator 5 connects the outlet of condenser 3 through expansion valve 7; The inlet end of expansion valve 7 is provided with tensimeter and thermometer;
The outlet of evaporator 5 connects the inlet of compressor 2, and the outlet of compressor 2 connects the inlet of condenser 3; The inlet end of compressor 2 is provided with tensimeter and thermometer, and the endpiece of compressor 2 is provided with tensimeter; The endpiece of evaporator 5 is provided with tensimeter and thermometer;
Be parallel with one or more pressure vessels 11 between the inlet end of the inlet end of expansion valve 7 and compressor 2, pressure vessel 11 bottoms are provided with well heater 14, and well heater 14 is by the second amount of formulation submergence in the pressure vessel 11; The top of pressure vessel 11 is provided with evaporator 15; Pressure vessel 11 is provided with calorimeter 16;
The inlet of evaporator 15 connects the outlet of condenser 3 through expansion valve 17; The outlet of evaporator 15 connects the inlet of compressor 2, and the endpiece of evaporator 5 is provided with tensimeter and thermometer.
F wherein
2Be meant the liquidus temperature force value that expansion valve is preceding;
f
1Be meant the liquid phase force value of compressor outlet;
g
1Be meant the gas phase temperature force value of compressor inlet;
g
2, g
2' be meant the gas phase temperature force value of evaporator outlet.
The utility model is parallel with one or more calorimeters at f2 and g1 place, can automatically switch according to the different ability scope, has both widened measurement range, has guaranteed measuring accuracy and test period again.
The measuring accuracy of the utility model and single calorimeter basically identical, test period has increase (amplification is less than 10%) slightly than single calorimeter, and effect is superior to single calorimeter greatly, and the cost increase is no more than 10%.
Claims (2)
1. a refrigeration compressor performance test apparatus comprises first pressure vessel, compressor, condenser, and the bottom of first pressure vessel is provided with well heater, and the top of first pressure vessel is provided with evaporator; First pressure vessel is provided with calorimeter; The inlet of evaporator connects the outlet of condenser through expansion valve; The outlet of evaporator connects the inlet of compressor, and the outlet of compressor connects the inlet of condenser; It is characterized in that: be parallel with one or more pressure vessels between the inlet end of said expansion valve and the inlet end of compressor, the pressure vessel bottom is provided with another well heater, and the top of pressure vessel is provided with another evaporator; Pressure vessel is provided with another calorimeter; The inlet of said another evaporator connects the outlet of said condenser through another expansion valve; The outlet of said another evaporator connects the inlet of said compressor.
2. refrigeration compressor performance test apparatus according to claim 1 is characterized in that: the endpiece of said another evaporator is provided with tensimeter and thermometer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203637507U CN202256221U (en) | 2011-09-26 | 2011-09-26 | Performance test device of refrigeration compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203637507U CN202256221U (en) | 2011-09-26 | 2011-09-26 | Performance test device of refrigeration compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202256221U true CN202256221U (en) | 2012-05-30 |
Family
ID=46117443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203637507U Expired - Lifetime CN202256221U (en) | 2011-09-26 | 2011-09-26 | Performance test device of refrigeration compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202256221U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104374591B (en) * | 2014-11-13 | 2016-11-23 | 中国电器科学研究院有限公司 | A kind of ability measurement device of electric expansion valve |
| CN106151002A (en) * | 2015-04-07 | 2016-11-23 | 上海日立电器有限公司 | A kind of multi-evaporation temperature system compressors performance testing device |
| CN108195881A (en) * | 2017-12-29 | 2018-06-22 | 武汉力神动力电池系统科技有限公司 | A kind of water cooling experiment porch |
| CN116858528A (en) * | 2023-09-04 | 2023-10-10 | 合肥通用机械研究院有限公司 | Compressor-expansion valve performance coupling matching test system and test method |
-
2011
- 2011-09-26 CN CN2011203637507U patent/CN202256221U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104374591B (en) * | 2014-11-13 | 2016-11-23 | 中国电器科学研究院有限公司 | A kind of ability measurement device of electric expansion valve |
| CN106151002A (en) * | 2015-04-07 | 2016-11-23 | 上海日立电器有限公司 | A kind of multi-evaporation temperature system compressors performance testing device |
| CN106151002B (en) * | 2015-04-07 | 2018-09-18 | 上海海立电器有限公司 | A kind of multi-evaporation temperature system compressors performance testing device |
| CN108195881A (en) * | 2017-12-29 | 2018-06-22 | 武汉力神动力电池系统科技有限公司 | A kind of water cooling experiment porch |
| CN116858528A (en) * | 2023-09-04 | 2023-10-10 | 合肥通用机械研究院有限公司 | Compressor-expansion valve performance coupling matching test system and test method |
| CN116858528B (en) * | 2023-09-04 | 2023-12-05 | 合肥通用机械研究院有限公司 | Compressor-expansion valve performance coupling matching test system and test method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120530 |