CN201983514U - Cold start environmental test chamber - Google Patents
Cold start environmental test chamber Download PDFInfo
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- CN201983514U CN201983514U CN2011200408648U CN201120040864U CN201983514U CN 201983514 U CN201983514 U CN 201983514U CN 2011200408648 U CN2011200408648 U CN 2011200408648U CN 201120040864 U CN201120040864 U CN 201120040864U CN 201983514 U CN201983514 U CN 201983514U
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Abstract
The utility model discloses a cold start environmental test chamber, which comprises a circulating fan set and a cascade type compression condensing unit, wherein the circulating fan set comprises a low-temperature level evaporator; the cascade type compression condensing unit comprises a high-temperature level compressor and a high-temperature level condenser; a high-temperature level evaporator is arranged on the air inlet side of the low-temperature level evaporator; the output end of the high-temperature level evaporator is connected with the input end of the high-temperature level compressor; and the output end of the high-temperature level condenser is sequentially connected with the input end of the high-temperature level evaporator through a first expansion valve and a first solenoid valve. The high-temperature level evaporator is connected with an evaporation condenser in parallel; by the switching of the solenoid valve, whether the temperature is reduced by the high-temperature level evaporator or the low-temperature level evaporator is determined according to the temperature in the chamber; the problem of the high energy consumption due to the fact that the high-temperature level compressor and the low-temperature level compressor are always required to work simultaneously during the temperature drop process of the cascade type compression condensing unit is solved; and aims of saving the investment of equipment, reducing consumption of energy sources and improving the test efficiency of the test chamber are achieved.
Description
Technical field
The utility model relates to a kind of cold start-up experimental cabin, particularly a kind of cold start-up experimental enviroment cabin of adopting superposition type Condensing units high temperature level evaporimeter and the pre-cooling of superposition type Condensing units low temperature level evaporimeter associating.
Background technology
Common engine or car load cold start-up experimental enviroment cabin are to be made of parts such as cabin body, smoke discharging pipe, circulated air unit, superposition type Condensing units.Wherein the circulated air unit has only low temperature level evaporimeter, and promptly the high low temperature stage compressor of superposition type Condensing units needs all the time operation simultaneously in the pre-temperature-fall period in cold start-up experimental enviroment cabin, but has only cryogenic vaporizer that cold start-up experimental enviroment cabin is lowered the temperature.And only depend on low temperature level evaporimeter cooling can't accomplish the economical operation of the temperature range that from normal temperature to the cold start-up test temperature (as-55 ℃) are so wide, thus can heterodyne, cooling rate is slow.
Summary of the invention
Goal of the invention: the purpose of this utility model is to address the above problem, provide a kind of in temperature-fall period, realize low energy consumption, efficiently, cold start-up experimental enviroment cabin fast.
In order to solve the problems of the technologies described above, the utility model has adopted following technical scheme: a kind of cold start-up experimental enviroment cabin, comprise circulated air unit and superposition type Condensing units, described circulated air unit comprises low temperature level evaporimeter, described superposition type Condensing units comprises high temperature stage compressor and high temperature level condenser, be provided with high temperature level evaporimeter in the inlet side of low temperature level evaporimeter, the output of high temperature level evaporimeter is connected with the input of high temperature stage compressor; The output of high temperature level condenser is connected with the input of high temperature level evaporimeter by an expansion valve, a magnetic valve successively.
Beneficial effect: the utility model compared with prior art, in the circulated air unit, increased high temperature level evaporimeter, high temperature level evaporimeter adopts parallel form to be connected with evaporative condenser, and by the magnetic valve switching of advancing, determining to adopt the cooling of high temperature level evaporimeter according to temperature in the environment storehouse still is to lower the temperature by low temperature level evaporimeter, solved superposition type Condensing units high temperature stage compressor and low temperature stage compressor in the pre-temperature-fall period in the cold start-up cabin big problem of energy consumption of need working simultaneously all the time, reach and save equipment investment and reduce energy consumption, and improve the purpose of experimental cabin test efficiency.
Description of drawings
Figure is a structural representation of the present utility model.
The specific embodiment:
Below in conjunction with accompanying drawing the utility model is done further explanation.
As shown in the figure, a kind of cold start-up experimental enviroment of the present utility model cabin is made of cabin body 2, circulated air unit and superposition type Condensing units.
On the air-treatment pipeline of circulated air unit inside, be provided with fresh wind port 5, air cleaner 4, high temperature level evaporimeter 18, low temperature level evaporimeter 19, electric heater 22 and blower fan 20 successively, wherein fresh wind port 5 is positioned at the air inlet place of air-treatment pipeline, and blower fan 20 is positioned at the air outlet place of air-treatment pipeline.Cabin body 2 is communicated with the air inlet of air-treatment pipeline by return air duct 3, is communicated with by the air outlet of air supply duct 21 with the air-treatment pipeline.In cabin body 2, be provided with smoke discharging pipe 1.
The superposition type Condensing units comprises low temperature stage compressor 7, high temperature stage compressor 9, high temperature level condenser 11 and evaporative condenser 14.The output of high temperature stage compressor 9 is connected with the input of evaporative condenser 14, and the output of high temperature level condenser 11 is connected by magnetic valve 10, No. two magnetic valves 12 and expansion valve 16, No. two expansion valves 13 respectively.No. one expansion valve 16 is connected with the input of high temperature stage compressor 9 by high temperature level evaporimeter 18; No. two magnetic valve 12 is connected with the input of high temperature stage compressor 9 by evaporative condenser 14.The output of low temperature stage compressor 7 is connected with No. three expansion valves 17 by evaporative condenser 14, No. three magnetic valves 15, and No. three expansion valves 17 pass through low temperature level evaporimeter 19 and are connected with the input of low temperature stage compressor 7.The output of low temperature stage compressor 7 also is connected with the input of expansion vessel 6 by No. four magnetic valves 8 in addition, and the output of expansion vessel 6 is connected with the output of low temperature stage compressor 7.
With 1470m3/h cold start-up experimental enviroment cabin is example.Dead size is in the cabin body 2: the high 6m of the wide 14m* of long 17.5m*; Adopt DN300 smoke discharging pipe 1,2-5000*1250 return air duct 3, DN300 fresh wind port 5,2-5000*850 air supply duct 21 and 800L expansion vessel 6; Air cleaner 4 adopts U.S.A to suffer the G4 air cleaner, low temperature stage compressor 7 adopts German Bitzer HSK8551-110 compressor, No. four magnetic valves 8 adopt goes up permanent magnetic valve, high temperature stage compressor 9 adopts German Bitzer HSK8571-1409 compressor, No. one magnetic valve 10 adopts U.S. Danfoss magnetic valve, high temperature level condenser 11 adopts Sai Fute JD510CA water-cooled condenser, No. two magnetic valve 12 adopts U.S. Danfoss magnetic valve, No. two expansion valve 13 adopts U.S. Ai Mo to give birth to the TIR37SC expansion valve, evaporative condenser 14 adopts Alfa Laval AC500EQ-130H evaporative condenser, No. three magnetic valve 15 adopts U.S. Danfoss EVR25 magnetic valve, No. one expansion valve 16 adopts U.S. Ai Mo to give birth to the TIR37SC expansion valve, No. three but expansion valve 17 adopts U.S. Chinese mugwort EX6 electric expansion valve, and blower fan 20 adopts Shandong new wind DF15-53No10.0E centrifugal blower.
Operation principle of the present utility model is: air is through return air duct 3 and air cleaner 4 in the cabin body 2, after evaporimeter cooling processing, send back in the cabin body 2 by the air of blower fan 20 after air supply duct 21 will be lowered the temperature, so thereby circulation realizes experimental cabin is lowered the temperature continuously, finally reaches engine or car load cold start-up and tests required environment temperature (as-55 ℃).Wherein the evaporimeter cooling comprises 18 coolings of high temperature level evaporimeter and 19 coolings of low temperature level evaporimeter.For compressor, during 18 coolings of high temperature level evaporimeter, only high temperature stage compressor 9 operations; During 19 coolings of low temperature level evaporimeter, high temperature stage compressor 9 and low temperature stage compressor 7 all move.
The cooling operation principle of high temperature level evaporimeter 18 is: the high temperature and high pressure gas that high temperature stage compressor 9 is discharged enters high temperature level condenser 11, cooling and condensation become subcooled liquid, after expansion valve 16 throttling step-downs, enter high temperature level evaporimeter 18 again, absorption becomes in the sucked back high temperature stage compressor 9 of superheated steam after flowing through the air heat of high temperature level evaporimeter 18, thereby finishes the once circulation of refrigerant system.Circulating air is through 18 coolings of high temperature level evaporimeter, and temperature reaches medium temperature from normal temperature earlier fast in the cabin body 2, as-25 ℃.
The cooling operation principle of low temperature level evaporimeter 19 is: the high temperature and high pressure gas that high temperature stage compressor 9 is discharged enters high temperature level condenser 11, cooling and condensation become subcooled liquid, after No. two expansion valve 13 throttling step-downs, enter evaporative condenser 14 again, absorb and to become superheated steam behind the heat of the high temperature and high pressure gas that the low temperature stage compressor 7 flow through evaporative condenser 14 discharges and be inhaled in the high temperature compressed machine 9; The high temperature and high pressure gas that low temperature stage compressor 7 is discharged enters evaporative condenser 14, cooling and condensation become subcooled liquid, after No. three expansion valve 17 throttling step-downs, enter low temperature level evaporimeter 19 again, absorption is flow through and is become superheated steam behind the circulating air heat of low temperature level evaporimeter 19 and be inhaled in the cryogenic compressor 7, thereby finishes the once circulation of refrigerant system.Circulating air passes through 19 coolings of low temperature level evaporimeter and reaches the temperature of needs as-25 ℃～-55 ℃.
The above only is a preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (1)
1. cold start-up experimental enviroment cabin, comprise circulated air unit and superposition type Condensing units, described circulated air unit comprises low temperature level evaporimeter (19), described superposition type Condensing units comprises high temperature stage compressor (9) and high temperature level condenser (11), it is characterized in that: be provided with high temperature level evaporimeter (18) in the inlet side of low temperature level evaporimeter (19), the output of high temperature level evaporimeter (18) is connected with the input of high temperature stage compressor (9); The output of high temperature level condenser (11) is connected with the input of high temperature level evaporimeter (18) by an expansion valve (16), a magnetic valve (10) successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200408648U CN201983514U (en) | 2011-02-17 | 2011-02-17 | Cold start environmental test chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200408648U CN201983514U (en) | 2011-02-17 | 2011-02-17 | Cold start environmental test chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201983514U true CN201983514U (en) | 2011-09-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200408648U Expired - Lifetime CN201983514U (en) | 2011-02-17 | 2011-02-17 | Cold start environmental test chamber |
Country Status (1)
| Country | Link |
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| CN (1) | CN201983514U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104654682A (en) * | 2013-11-21 | 2015-05-27 | 上海爱斯佩克环境设备有限公司 | Environmental testing apparatus |
| CN109959178A (en) * | 2019-03-27 | 2019-07-02 | 中国北方车辆研究所 | Simulated environment cabin pole cryogenic refrigerating unit |
| CN111595024A (en) * | 2020-06-03 | 2020-08-28 | 西京学院 | Intelligent split type heat pump |
| CN113835453A (en) * | 2021-11-29 | 2021-12-24 | 中国飞机强度研究所 | Multi-working-condition airplane climate environment test temperature regulation control system |
| CN113835454A (en) * | 2021-11-29 | 2021-12-24 | 中国飞机强度研究所 | Method for adjusting and controlling environmental temperature of airplane climate environment test |
| CN114608213A (en) * | 2022-03-18 | 2022-06-10 | 珠海市精实测控技术有限公司 | High-low temperature working condition cascade refrigeration system and control method thereof |
-
2011
- 2011-02-17 CN CN2011200408648U patent/CN201983514U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104654682A (en) * | 2013-11-21 | 2015-05-27 | 上海爱斯佩克环境设备有限公司 | Environmental testing apparatus |
| CN109959178A (en) * | 2019-03-27 | 2019-07-02 | 中国北方车辆研究所 | Simulated environment cabin pole cryogenic refrigerating unit |
| CN111595024A (en) * | 2020-06-03 | 2020-08-28 | 西京学院 | Intelligent split type heat pump |
| CN111595024B (en) * | 2020-06-03 | 2021-10-26 | 西京学院 | Intelligent split type heat pump |
| CN113835453A (en) * | 2021-11-29 | 2021-12-24 | 中国飞机强度研究所 | Multi-working-condition airplane climate environment test temperature regulation control system |
| CN113835454A (en) * | 2021-11-29 | 2021-12-24 | 中国飞机强度研究所 | Method for adjusting and controlling environmental temperature of airplane climate environment test |
| CN113835453B (en) * | 2021-11-29 | 2022-02-08 | 中国飞机强度研究所 | Multi-working-condition airplane climate environment test temperature regulation control system |
| CN113835454B (en) * | 2021-11-29 | 2022-02-08 | 中国飞机强度研究所 | Method for adjusting and controlling environmental temperature of airplane climate environment test |
| CN114608213A (en) * | 2022-03-18 | 2022-06-10 | 珠海市精实测控技术有限公司 | High-low temperature working condition cascade refrigeration system and control method thereof |
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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: 20110921 |
|
| CX01 | Expiry of patent term |