CN202216854U - Enthalpy difference wind tunnel for testing air conditioner performance - Google Patents
Enthalpy difference wind tunnel for testing air conditioner performance Download PDFInfo
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- CN202216854U CN202216854U CN2011203637598U CN201120363759U CN202216854U CN 202216854 U CN202216854 U CN 202216854U CN 2011203637598 U CN2011203637598 U CN 2011203637598U CN 201120363759 U CN201120363759 U CN 201120363759U CN 202216854 U CN202216854 U CN 202216854U
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- wind tunnel
- enthalpy difference
- water tank
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Abstract
The utility model discloses an enthalpy difference wind tunnel for testing air conditioner performance, which includes a wind tunnel plenum chamber, a wind tunnel measuring section and a wind tunnel draft fan, wherein the wind tunnel plenum chamber is connected with one end of the wind tunnel measuring section through a pipeline, and the other end of the wind tunnel measuring section is connected with the wind tunnel draft fan; the wind tunnel measuring section includes a thermal insulation box internally provided with a spray nozzle; a heat exchanger is also arranged in the thermal insulation box, and is connected with a cold-hot water tank through a pipeline for forming water circulation between the heat exchanger and the cold-hot water tank. By additionally arranging the heat exchanger on the wind tunnel measuring section, the enthalpy difference wind tunnel has the calibrating function and can judge the accuracy of the enthalpy difference measurement in real time.
Description
Technical field
The utility model relates to a kind of performance test apparatus of air conditioner, is specifically related to a kind of enthalpy difference wind-tunnel that is used for the household air-conditioner test.
Background technology
At present in household air-conditioner test field, the general performance that adopts the enthalpy difference wind-tunnel that is arranged in the room to measure air conditioner.As shown in Figure 1, the enthalpy difference wind-tunnel is arranged in the room 1, and the enthalpy difference wind-tunnel comprises wind-tunnel plenum chamber B, wind-tunnel measurements section C, wind-tunnel induced draft fan D, and wind-tunnel plenum chamber B is through the end of pipeline connection wind-tunnel measurements section C, and the other end of wind-tunnel measurements section C connects wind-tunnel induced draft fan D; The air outlet of wind-tunnel induced draft fan D leads to seal chamber, is provided with cooling device E, heating arrangement H, damping device G, circulating fan F in the seal chamber, and the air outlet of circulating fan F leads to the room 1 at enthalpy difference wind-tunnel place; Wind-tunnel measurements section C comprises an insulation casing, is provided with nozzle, cylinder and transmitter in the insulation casing.
During measurement, tested machine A is connected with wind-tunnel plenum chamber B; Measure the pressure reduction △ P before and after the nozzle in the wind-tunnel measurements section C, and the dry-bulb temperature Ta before the nozzle, (△ P Ta), can obtain the dry air air quantity MF of tested machine A according to the dry air air quantity MF=f of tested machine;
Measure the dry-bulb temperature Td1 and the wet-bulb temperature Tw1 of the inflow point of tested machine A again, (Td1 Tw1), can obtain the import enthalpy H1 of tested machine A according to tested machine import enthalpy H1=f;
Measure the dry-bulb temperature Td2 and the wet-bulb temperature Tw2 in the exit of tested machine A, (Td2 Tw2), can obtain tested machine outlet enthalpy H2 according to tested machine outlet enthalpy H2=f;
At last according to tested capabilities Q=MF * (H1-H2), can draw the ability Q of tested machine A.
This measurement mechanism, owing in measuring process, need the parameter of measurement many, the factor that influence is measured is many, and has only a kind of measuring method, therefore causes measurement result to subject to suspect and can't confirm.
The utility model content
The utility model technical matters to be solved provides a kind of enthalpy difference wind-tunnel that is used for household air-conditioner test, the accuracy that it can the real-time judge enthalpy potential method be measured.
For solving the problems of the technologies described above, the technical solution that the utility model is used for the enthalpy difference wind-tunnel of household air-conditioner test is:
Comprise wind-tunnel plenum chamber, wind-tunnel measurements section, wind-tunnel induced draft fan, the wind-tunnel plenum chamber is through an end of pipeline connection wind-tunnel measurements section, and the other end of wind-tunnel measurements section connects the wind-tunnel induced draft fan; Said wind-tunnel measurements section comprises an insulation casing, is provided with nozzle in the insulation casing; It is characterized in that: also be provided with heat interchanger in the said insulation casing, heat interchanger connects the hot and cold water tank through pipeline, makes between heat interchanger and the hot and cold water tank and forms water cycle.
Be in series with flowmeter, variable frequency pump on the pipeline between said heat interchanger and the hot and cold water tank.
The technique effect that the utility model can reach is:
The utility model has additional heat interchanger in the wind-tunnel measurements section, make the utility model possess calibration function, the accuracy of can the real-time judge enthalpy potential method measuring.
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 that prior art is used for the enthalpy difference wind-tunnel of household air-conditioner test;
Fig. 2 is the synoptic diagram that the utility model is used for the enthalpy difference wind-tunnel of household air-conditioner test.
Description of reference numerals among the figure:
A is tested machine, and B is the wind-tunnel plenum chamber,
C is the wind-tunnel measurements section, and D is the wind-tunnel induced draft fan,
E is a cooling device, and F is a circulating fan,
G is a damping device, and H is a heating arrangement,
I is a heat interchanger, and J is the hot and cold water tank,
L is a flowmeter, and M is a variable frequency pump,
1 is the room.
Embodiment
As shown in Figure 2; The enthalpy difference wind-tunnel that the utility model is used for the household air-conditioner test is arranged in the room; The enthalpy difference wind-tunnel comprises wind-tunnel plenum chamber B, wind-tunnel measurements section C, wind-tunnel induced draft fan D; Wind-tunnel plenum chamber B is through the end of pipeline connection wind-tunnel measurements section C, and the other end of wind-tunnel measurements section C connects wind-tunnel induced draft fan D; The air outlet of wind-tunnel induced draft fan D leads to seal chamber, is provided with cooling device E, heating arrangement H, damping device G, circulating fan F in the seal chamber, and the air outlet of circulating fan F leads to the room at enthalpy difference wind-tunnel place;
Wind-tunnel measurements section C comprises an insulation casing, is provided with nozzle, cylinder and transmitter in the insulation casing; Also be provided with heat interchanger I in the insulation casing, heat interchanger I connects hot and cold water tank J through pipeline, makes between heat interchanger I and the hot and cold water tank J and forms water cycle;
Be in series with flowmeter L, variable frequency pump M on the pipeline between heat interchanger I and the hot and cold water tank J.
The utility model adopts enthalpy potential method to carry out performance test for air conditioner.
During measurement, tested machine A is connected with wind-tunnel plenum chamber B; Measure the dry-bulb temperature Td1 and the wet-bulb temperature Tw1 of the inflow point of tested machine A, (Td1 Tw1), can obtain the import enthalpy H1 of tested machine A according to tested machine import enthalpy H1=f;
Measure dry-bulb temperature Td3 and wet-bulb temperature Tw3 in the wind-tunnel measurements section C, (Td3 Tw3), can get the enthalpy H3 of wind-tunnel measurements section C according to H3=f;
Discharge MFw (discharge MFw reads through flowmeter L) through variable frequency pump M control heat interchanger I makes H3=H1;
Measure the discharge MFw of heat interchanger I, and wet-bulb temperature Twi, the Two of the entrance end of heat interchanger I, (MFw, Twi Two), can join the ability Qc among the wind-tunnel measurements section C according to Qc=f;
(△ P Td3), can get the dry air air quantity MF of tested machine according to dry air air quantity the MF '=f of tested machine;
According to tested machine import enthalpy H1=f (Td1, Tw1)
Tested machine outlet enthalpy H2=f (Td2, Tw2)
Can get, tested capabilities Q '=MF ' * (H1-H2).
Because tested capabilities Q ' and tested capabilities Q=MF * (H1-H2) identical theoretically, therefore, just can judge the accuracy of this measurement according to the two deviation of Q ' and Q.
Claims (2)
1. an enthalpy difference wind-tunnel that is used for the household air-conditioner test comprises wind-tunnel plenum chamber, wind-tunnel measurements section, wind-tunnel induced draft fan, and the wind-tunnel plenum chamber is through an end of pipeline connection wind-tunnel measurements section, and the other end of wind-tunnel measurements section connects the wind-tunnel induced draft fan; Said wind-tunnel measurements section comprises an insulation casing, is provided with nozzle in the insulation casing; It is characterized in that: also be provided with heat interchanger in the said insulation casing, heat interchanger connects the hot and cold water tank through pipeline, makes between heat interchanger and the hot and cold water tank and forms water cycle.
2. the enthalpy difference wind-tunnel that is used for the household air-conditioner test according to claim 1 is characterized in that: be in series with flowmeter, variable frequency pump on the pipeline between said heat interchanger and the hot and cold water tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203637598U CN202216854U (en) | 2011-09-26 | 2011-09-26 | Enthalpy difference wind tunnel for testing air conditioner performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203637598U CN202216854U (en) | 2011-09-26 | 2011-09-26 | Enthalpy difference wind tunnel for testing air conditioner performance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202216854U true CN202216854U (en) | 2012-05-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203637598U Expired - Lifetime CN202216854U (en) | 2011-09-26 | 2011-09-26 | Enthalpy difference wind tunnel for testing air conditioner performance |
Country Status (1)
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| CN (1) | CN202216854U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102967478A (en) * | 2012-11-12 | 2013-03-13 | 天津市卓东科技发展有限公司 | Enthalpy difference laboratory |
| CN104155136A (en) * | 2014-08-21 | 2014-11-19 | 重庆大学 | Air cooler refrigerating capacity measuring apparatus |
| CN105115738A (en) * | 2015-09-22 | 2015-12-02 | 上海佐竹冷热控制技术有限公司 | Performance test system and performance test method for top-mounted air-conditioning system |
| CN106706260A (en) * | 2016-11-23 | 2017-05-24 | 中国航空工业集团公司沈阳空气动力研究所 | System for precisely controlling total temperature of continuous transonic wind tunnel |
| CN110411700A (en) * | 2019-08-28 | 2019-11-05 | 广州兰石技术开发有限公司 | A kind of heat exchanger wind tunnel testing system |
| CN110954351A (en) * | 2019-12-19 | 2020-04-03 | 珠海市精实测控技术有限公司 | Heat calibration device for enthalpy difference laboratory |
-
2011
- 2011-09-26 CN CN2011203637598U patent/CN202216854U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102967478A (en) * | 2012-11-12 | 2013-03-13 | 天津市卓东科技发展有限公司 | Enthalpy difference laboratory |
| CN104155136A (en) * | 2014-08-21 | 2014-11-19 | 重庆大学 | Air cooler refrigerating capacity measuring apparatus |
| CN105115738A (en) * | 2015-09-22 | 2015-12-02 | 上海佐竹冷热控制技术有限公司 | Performance test system and performance test method for top-mounted air-conditioning system |
| CN105115738B (en) * | 2015-09-22 | 2017-07-25 | 上海佐竹冷热控制技术有限公司 | The Performance Test System and method of testing of overhead type air-conditioning system |
| CN106706260A (en) * | 2016-11-23 | 2017-05-24 | 中国航空工业集团公司沈阳空气动力研究所 | System for precisely controlling total temperature of continuous transonic wind tunnel |
| CN110411700A (en) * | 2019-08-28 | 2019-11-05 | 广州兰石技术开发有限公司 | A kind of heat exchanger wind tunnel testing system |
| CN110954351A (en) * | 2019-12-19 | 2020-04-03 | 珠海市精实测控技术有限公司 | Heat calibration device for enthalpy difference laboratory |
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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 |
Granted publication date: 20120509 |
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| CX01 | Expiry of patent term |