CN103487267B - Air conditioning system testing device - Google Patents
Air conditioning system testing device Download PDFInfo
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- CN103487267B CN103487267B CN201210191754.0A CN201210191754A CN103487267B CN 103487267 B CN103487267 B CN 103487267B CN 201210191754 A CN201210191754 A CN 201210191754A CN 103487267 B CN103487267 B CN 103487267B
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- conditioning system
- air
- test set
- valve
- system test
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 71
- 238000012360 testing method Methods 0.000 title claims abstract description 61
- 239000007788 liquid Substances 0.000 claims abstract description 74
- 239000003507 refrigerant Substances 0.000 claims abstract description 38
- 238000001816 cooling Methods 0.000 claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 30
- 230000006837 decompression Effects 0.000 claims description 15
- 239000012530 fluid Substances 0.000 claims description 15
- 239000011521 glass Substances 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 abstract 2
- 239000002826 coolant Substances 0.000 description 32
- 239000006200 vaporizer Substances 0.000 description 10
- 238000005259 measurement Methods 0.000 description 5
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000011056 performance test Methods 0.000 description 4
- 238000013139 quantization Methods 0.000 description 3
- 238000005057 refrigeration Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
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- Air Conditioning Control Device (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
The invention provides an air conditioning system testing device. The air conditioning system testing device comprises a pressure reduction regulating valve (6), a refrigerant cooling system, a liquid storage device (11), a flow meter (14) and a flow regulating valve (15) which are sequentially connected through pipelines. According to the air conditioning system testing device, the running state of the compressor with liquid continuously can be measured quantitatively, conditions for starting the accumulated liquid of the compressor are provided, the testing efficiency is effectively improved, and the liquid return amount of the air conditioning system is accurately measured and controlled.
Description
Technical field
The present invention relates to air-conditioning system simulation test technology, specifically, it relates to a kind of air-conditioning system test set.
Background technology
Current air-conditioning system, often because the variation of ambient temperature scope of use greatly or designs not good and causes refrigerant evaporation incomplete, or causes compressor to return liquid because of vapour liquid separator inferior separating effect, causes compressor operation under band liquid status long-term, continuous. Meanwhile, air-conditioning system causes the long-pending liquid of compressor to start because of problems such as refrigerant migrations, causes compressor liquid to hit, and refrigerant poor lubrication causes compressor damage, breaks down. The testing experiment means of the current band liquid running status performance for air-conditioning system fall behind, and overlong time, efficiency is too low, more cannot accurately measure and control back liquid measure.
Summary of the invention
It is desirable to provide a kind of air-conditioning system test set, it is possible to the running status of the continuous band liquid of measures of quantization compressor, it is provided that the condition that the long-pending liquid of compressor starts, effectively improve test efficiency, Measurement accuracy and control air-conditioning system return liquid measure.
In order to realize above-mentioned purpose, according to an aspect of the present invention, it provides a kind of air-conditioning system test set, air-conditioning system test set comprises the decompression valve, refrigerant cooling system, reservoir, under meter and the flow control valve that are connected successively by pipeline.
Further, refrigerant cooling system comprise be connected between decompression valve and reservoir refrigerant water cooler, be connected with refrigerant water cooler and form the cooling tower of cooling loop, handpiece Water Chilling Units and water pump.
Further, the first stopping valve it is provided with between reservoir and under meter.
Further, air-conditioning system test set also comprises the long-pending liquid driving pipeline in parallel with the first stopping valve.
Further, long-pending liquid drives pipeline to comprise the 2nd stopping valve and the fluid filling pump arranged successively along refrigerant flow direction.
Further, long-pending liquid drives pipeline also to comprise the 3rd stopping valve being arranged on fluid filling pump downstream.
Further, air-conditioning system test set also comprises the liquid-sighting glass being arranged on the pipeline between reservoir and under meter or being arranged on reservoir.
Further, the decompression valve of air-conditioning system test set is connected on the pipeline between the condenser of tested air-conditioning system and throttling valve, and the flow control valve of air-conditioning system test set is connected to the compressor ingress of tested air-conditioning system.
Further, access place that air-conditioning system test set accesses tested air-conditioning system arranges distribution valve.
The technical scheme of application the present invention, air-conditioning system test set comprises the decompression valve, refrigerant cooling system, reservoir, under meter and the flow control valve that are connected successively by pipeline. the decompression valve of this air-conditioning system test set directly or indirectly can be connected with the condenser of conditioner, it is thus possible to temperature and pressure to the liquid coolant flowed out from condenser regulate, make it identical with temperature with the air pressure of compressor inlet, and by the liquid refrigerant return that regulates to compressor inlet, it is made to mix mutually with the air discharged from vaporizer, it is thus possible to the running status of the continuous band liquid of measures of quantization compressor, the compressor condition that long-pending liquid starts is provided, effectively improve test efficiency, Measurement accuracy and control air-conditioning system return liquid measure, measure quick and precisely, meet the measurement needs of air-conditioning system under different compressors state.
Accompanying drawing explanation
The accompanying drawing of the part forming the present invention is used to provide a further understanding of the present invention, and the schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention. In the accompanying drawings:
Fig. 1 shows the structural representation of air-conditioning system test set according to an embodiment of the invention.
Embodiment
Hereinafter with reference to accompanying drawing and come the present invention is described in detail in conjunction with the embodiments. It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.
As shown in Figure 1, according to embodiments of the invention, a kind of air-conditioning system test set comprises the decompression valve 6, refrigerant cooling system, reservoir 11, first stopping valve 16, under meter 14 and the flow control valve 15 that are connected successively by pipeline.
Refrigerant cooling system comprises refrigerant water cooler 7, cooling tower 8, handpiece Water Chilling Units 10 and water pump 9. Refrigerant water cooler 7 is connected between decompression valve 6 and reservoir 11, for the liquid coolant flow through from decompression valve 6 is carried out step-down cooling, the liquid coolant flowed out from refrigerant water cooler 7 is made to reach temperature and the pressure of required state, with satisfied test needs. Refrigerant water cooler 7 forms cooling loop with cooling tower 8, handpiece Water Chilling Units 10 and water pump 9, and water coolant flows out in cooling tower 8, enters water pump 9, and enter in refrigerant water cooler 7 to participate in refrigeration cycle by water pump 9 pump after handpiece Water Chilling Units 10 cools. Water coolant after participating in refrigeration cycle flows back in handpiece Water Chilling Units 10 from another waterway connector of refrigerant water cooler 7, cools via entering cooling tower 8 after handpiece Water Chilling Units 10 heat exchange, again enters refrigeration cycle afterwards. The cooling unit that cooling tower 8 in refrigerant cooling system, handpiece Water Chilling Units 10 and water pump 9 can be other replaces, and for carrying out heat exchange with the liquid coolant in refrigerant water cooler 7, makes the state that the liquid coolant in refrigerant water cooler 7 reaches required.
The pipeline at the first stopping valve 16 two ends can drive pipeline by parallel one long-pending liquid, so that the performance test of air-conditioning system running status when making this air-conditioning system test set can simultaneously realize the performance test of band liquid running status of air-conditioning system and long-pending liquid frequent starting. Long-pending liquid drives the 2nd stopping valve 16 ', fluid filling pump 13 and the 3rd stopping valve 16 that pipeline comprises the flow direction along refrigerant and arrange successively ". For controlling, liquid coolant enters fluid filling pump 13 to 2nd stopping valve 16 ', by changing the first stopping valve 16 and the open and-shut mode of the 2nd stopping valve 16 ', it is possible to control air-conditioning system test set carries out the performance test of band liquid running status or carries out the performance test of long-pending liquid frequent starting state.Fluid filling pump 13 provides Liquid transfer power, for the liquid coolant pumping in reservoir 11 being gone out. 3rd stopping valve 16 " it is arranged on the downstream of fluid filling pump 13; be possible to prevent fluid filling pump 13 pumps rear liquid refrigerant return to fluid filling pump 13 by liquid coolant on the one hand; on the other hand can also when being keeped in repair by fluid filling pump 13; close the 2nd stopping valve 16 ' and the 3rd stopping valve 16 ", prevent liquid coolant from continuing to flow to fluid filling pump 13, facilitate the maintenance of fluid filling pump 13.
For the ease of the flowing of liquid coolant is observed, test better, air-conditioning system test set can also arrange liquid-sighting glass 12 on the pipeline on reservoir 11 or between reservoir 11 and under meter 14, or directly arranges vision slit on reservoir 11. When the liquid coolant in reservoir 11 flows under meter 14, it is possible to observed the state of liquid coolant by liquid-sighting glass 12 or vision slit.
Tested air-conditioning system comprises the compressor 1, condenser 2, throttling valve 4 and the vaporizer 5 that are connected in series successively by pipeline and form loop, also comprise above-mentioned air-conditioning system test set, the decompression valve 6 of air-conditioning system test set is connected on the pipeline between the condenser 2 of tested air-conditioning system and throttling valve 4, and the flow control valve 15 of air-conditioning system test set is connected to compressor 1 ingress of tested air-conditioning system.
Preferably, access place accessing tested air-conditioning system at air-conditioning system test set is provided with distribution valve 3, wherein distribution valve 3 is three-way distribution valve, the pressurization variable valve of air-conditioning system test set is connected to one of them valve port of three-way distribution valve by pipeline, and two other valve port of three-way distribution valve is connected to condenser 2 and throttling valve 4 respectively by pipeline. The flow control valve 15 of air-conditioning system test set is connected on the pipeline between compressor 1 and vaporizer 5, thus is inhaled in compressor 1 together with the gaseous coolant flowed out from vaporizer 5 and circulates. Distribution valve 3 can also be arranged on the access position place that flow control valve 15 accesses tested air-conditioning system.
In conjunction with shown in Figure 1, the working process of the air-conditioning system test set of the present invention is as follows:
Compressor 1 sucks the low-pressure steam in vaporizer 5, discharge the overheated gas of High Temperature High Pressure after compression, then it is condensed into saturated or excessively cold liquid coolant through condenser 2 heat release, it is divided into two-way by three-way distribution valve, one road is to air-conditioning system test set, and another road flows into vaporizer 5 after throttling valve 4 expansion throttling step-down, flows out in vaporizer 5 after heat absorption vaporization, sucked by compressor 1 and compress, start new circulation.
After condenser 2 liquid coolant out flows into air-conditioning system test set by a valve port of three-way distribution valve, liquid coolant carries out step-down and cooling through decompression valve 6 throttling, liquid coolant through step-down cooling cools through refrigerant water cooler 7 again, the pressure and temperature of the liquid coolant after step-down is lowered the temperature is identical with the state of compressor 1 suction opening, and the liquid coolant after then processing is stored in reservoir 11.
When test compression machine 1 operating mode that band liquid runs continuously, the 2nd stopping valve 16 ' and the 3rd stopping valve 16 need to be closed ", open the first stopping valve 16, then the liquid coolant amount sucked is needed to remove the flow setting cold medium flux meter 14 according to compressor 1 suction opening, refrigerant amount in cold medium flux meter 14 measuring system pipeline, and feedback current signal is to PID table, the aperture size of flow control valve 15 is driven by the control of the ratio of PID table, such liquid coolant flow on the supervisor road of air-conditioning system by flow control valve 15, the gas coolant come with vaporizer 5 mixes, compressor 1 is made to suck the refrigerant of a certain proportion of gas-liquid mixed, thus compressor 1 band liquid is run.Owing to the flow of the liquid coolant flowed out from air-conditioning system test set is controlled, and the refrigerant state of outflow from vaporizer 5 also can control, therefore, it is possible to the ratio of accurate control gas-liquid mixed refrigerant so that it is reach the gas-liquid refrigerant combined amount needed for test. By the operating parameter of control conditioner and air-conditioning system control device, gas coolant and liquid coolant can be made to realize different blending ratios, thus realize the performance to the compressor 1 band liquid running status under various gas-liquid mixture phase and test, meet test requirements document.
When needs test compression machine 1 amasss liquid frequent starting, first close conditioner, make conditioner belong to non-running status. Then the first stopping valve 16 in air-conditioning system test set is closed, open the 2nd stopping valve 16 ' before and after fluid filling pump 13 and the 3rd stopping valve 16 "; start fluid filling pump 13 and it is delivered in compressor 1 by the liquid refrigerants in reservoir 11 to carry out long-pending liquid startup; and enter the liquid coolant amount in compressor 1 by under meter 14 control; then close the 2nd stopping valve 16 ' and the 3rd stopping valve 16 ", operating air conditioner, the performance of conditioner when the liquid coolant that test enters in compressor 1 runs in conditioner. So, so that it may when running in conditioner with the liquid coolant to difference amount, the performance of conditioner is tested, the running status of conditioner under the liquid coolant state of the different amount of acquisition, thus the long-pending liquid frequent starting performance of test compression machine 1.
From above description, it can be seen that the above embodiments of the present invention achieve following technique effect: air-conditioning system test set comprises the decompression valve, refrigerant cooling system, reservoir, under meter and the flow control valve that are connected successively by pipeline. the decompression valve of this air-conditioning system test set directly or indirectly can be connected with the condenser of conditioner, it is thus possible to temperature and pressure to the liquid coolant flowed out from condenser regulate, make it identical with temperature with the air pressure of compressor inlet, and by the liquid refrigerant return that regulates to compressor inlet, it is made to mix mutually with the air discharged from vaporizer, it is thus possible to the running status of the continuous band liquid of measures of quantization compressor, the compressor condition that long-pending liquid starts is provided, effectively improve test efficiency, Measurement accuracy and control air-conditioning system return liquid measure, measure quick and precisely, meet the measurement needs of air-conditioning system under different compressors state.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations. Within the spirit and principles in the present invention all, any amendment of doing, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (6)
1. an air-conditioning system test set, it is characterized in that, described air-conditioning system test set comprises the decompression valve (6), refrigerant cooling system, reservoir (11), under meter (14) and the flow control valve (15) that are connected successively by pipeline;
The first stopping valve (16) it is provided with between described reservoir (11) and described under meter (14);
Described air-conditioning system test set also comprises the long-pending liquid in parallel with described first stopping valve (16) and drives pipeline;
Described long-pending liquid drives pipeline to comprise the 2nd stopping valve (16 ') and fluid filling pump (13) arranged successively along refrigerant flow direction.
2. air-conditioning system test set according to claim 1, it is characterized in that, described refrigerant cooling system comprises the refrigerant water cooler (7) being connected between described decompression valve (6) and described reservoir (11) and is connected with described refrigerant water cooler (7) and forms the cooling tower (8) of cooling loop, handpiece Water Chilling Units (10) and water pump (9).
3. air-conditioning system test set according to claim 1, it is characterised in that, described long-pending liquid drives pipeline also to comprise the 3rd stopping valve (16 ") being arranged on described fluid filling pump (13) downstream.
4. air-conditioning system test set according to claim 1, it is characterized in that, the liquid-sighting glass (12) that described air-conditioning system test set also comprises on the pipeline being arranged between described reservoir (11) and described under meter (14) or is arranged on described reservoir (11).
5. air-conditioning system test set according to any one of claim 1 to 4, it is characterized in that, the decompression valve (6) of described air-conditioning system test set is connected on the pipeline between the condenser (2) of tested air-conditioning system and throttling valve (4), and the flow control valve (15) of described air-conditioning system test set is connected to compressor (1) ingress of tested air-conditioning system.
6. air-conditioning system test set according to claim 5, it is characterised in that, access place that described air-conditioning system test set accesses tested air-conditioning system arranges distribution valve (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210191754.0A CN103487267B (en) | 2012-06-11 | 2012-06-11 | Air conditioning system testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210191754.0A CN103487267B (en) | 2012-06-11 | 2012-06-11 | Air conditioning system testing device |
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| CN103487267A CN103487267A (en) | 2014-01-01 |
| CN103487267B true CN103487267B (en) | 2016-06-08 |
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| CN201210191754.0A Expired - Fee Related CN103487267B (en) | 2012-06-11 | 2012-06-11 | Air conditioning system testing device |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105372084B (en) * | 2015-10-26 | 2018-05-01 | 广东美的暖通设备有限公司 | A kind of heat pump performance detection method and Standard Machine weighing method |
| CN106769145A (en) * | 2016-12-15 | 2017-05-31 | 绍兴赛得空调设备有限公司 | A kind of Properties of Air-conditioning Unit detecting system |
| CN113049287A (en) * | 2021-04-06 | 2021-06-29 | 珠海格力智能装备有限公司 | Air conditioner detection system and air conditioner detection 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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| CN2718558Y (en) * | 2004-04-05 | 2005-08-17 | 广东科龙电器股份有限公司 | Tester for determining optimum refrigerant filling quantity of air conditioner |
| CN101649832A (en) * | 2009-09-04 | 2010-02-17 | 合肥通用机械研究院 | Compressor testing device meeting test at refrigerant side of refrigeration air-conditioning evaporator |
| CN101649831A (en) * | 2009-09-04 | 2010-02-17 | 合肥通用机械研究院 | Performance testing device of carbon dioxide refrigeration compressor for refrigeration systems |
| CN201531406U (en) * | 2009-11-09 | 2010-07-21 | 上海佐竹冷热控制技术有限公司 | Life test system of a refrigeration compressor |
| CN202631284U (en) * | 2012-06-11 | 2012-12-26 | 珠海格力电器股份有限公司 | Air conditioning system testing device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100021314A1 (en) * | 2008-07-23 | 2010-01-28 | Jackey Lee | Method and apparatus for monitoring the performance of a compressor |
| KR200460731Y1 (en) * | 2012-04-01 | 2012-06-04 | 최규호 | Air Compressor System for Power Control |
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- 2012-06-11 CN CN201210191754.0A patent/CN103487267B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2718558Y (en) * | 2004-04-05 | 2005-08-17 | 广东科龙电器股份有限公司 | Tester for determining optimum refrigerant filling quantity of air conditioner |
| CN101649832A (en) * | 2009-09-04 | 2010-02-17 | 合肥通用机械研究院 | Compressor testing device meeting test at refrigerant side of refrigeration air-conditioning evaporator |
| CN101649831A (en) * | 2009-09-04 | 2010-02-17 | 合肥通用机械研究院 | Performance testing device of carbon dioxide refrigeration compressor for refrigeration systems |
| CN201531406U (en) * | 2009-11-09 | 2010-07-21 | 上海佐竹冷热控制技术有限公司 | Life test system of a refrigeration compressor |
| CN202631284U (en) * | 2012-06-11 | 2012-12-26 | 珠海格力电器股份有限公司 | Air conditioning system testing device |
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| CN103487267A (en) | 2014-01-01 |
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