CN104670523A - High and low temperature environment simulation test device - Google Patents
High and low temperature environment simulation test device Download PDFInfo
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- CN104670523A CN104670523A CN201310625040.0A CN201310625040A CN104670523A CN 104670523 A CN104670523 A CN 104670523A CN 201310625040 A CN201310625040 A CN 201310625040A CN 104670523 A CN104670523 A CN 104670523A
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- low temperature
- air
- incubation chamber
- temperature
- simulation test
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Abstract
The invention provides a high and low temperature environment simulation test device, wherein the high and low temperature environment simulation test device comprises an air compressor, a refrigerated dryer, an air filter, a cascade refrigeration system, a high and low temperature air delivery pipe and a thermal insulation box connected in sequence; the thermal insulation box packages the transmission product, the compressed air is cooled by the cascade refrigeration system after processed by the refrigerated dryer and filtered by the air filter, and transmitted to the thermal insulation box through the high and low temperature air delivery pipe.
Description
Technical field
The invention belongs to aeronautical environment test field, relate to the simulated test facility for high and low temperature environment.
Background technology
What can complete high-low temperature test in transmission product rotary work situation at present is high temperature, low temperature has come with two equipment respectively, first by incubation chamber, transmission product is wrapped up, regulate the heating-up temperature of temperature booster (usual temperature booster be Q alloy heat at a high speed heating wire) by controlling horsepower output during high temperature test, pass in incubation chamber by the air after heating, principle of work, device structure are comparatively simple.By making it lower the temperature to passing into liquid nitrogen in incubation chamber during low temperature test, its liquid nitrogen cost is high, temperature control precision is low, transmission product rotating speed is lower, liquid nitrogen easily freezes more greatly, under static state from the slot leakage between transmission product and incubation chamber, cannot meet the test requirements document of first static rear running.Current various high and low-temperature apparatus function contrast is in table 1.
The common high-low temperature test chamber of table 1 and this invention functions of the equipments contrast table
Traditional type of cooling is in an airtight incubation chamber, stirs by evaporator, circulating fan the object that air reaches cooling.Its shortcoming the temperature of the objects such as the air in evaporator self, airtight box inner lumen materials, test article, closed enclosure all must be reduced the low temperature that just can reach target, and its consumed power is large, rate of temperature fall is slow.And once open airtight test box, the easy frosting of evaporator causes test to be cut off, after needing defrosting, experimental work could be continued.
Summary of the invention
The invention provides a kind of high/low temperature environmental simulation test facility, comprise the air compressor, freezing type drier, air filter, folding type cooling system, high/low temperature gas piping, the incubation chamber that connect successively, described incubation chamber wraps transmission product, pressurized air is after described freezing type drier and air filter filter, enter the cooling of described folding type cooling system, then enter incubation chamber by high/low temperature gas piping.
Adopt folding type cooling system to be connected with incubation chamber, pressurized air directly can be adopted to cool transmission product, and need not liquid nitrogen be adopted.
One embodiment of the present invention are that folding type cooling system comprises high-temperature level refrigeration cycle and low-temperature level refrigeration cycle.
One embodiment of the present invention are that folding type cooling system comprises compressor, air-cooled radiator, dryer, capillary tub and the plate type heat exchanger connected successively, and low-temperature refrigerant and dry air interchange of heat are obtained low temperature cold air by described plate type heat exchanger.
The refrigeration system that folding type cooling system is made up of equipment such as compressor, air-cooled radiator, plate type heat exchanger, capillary tubs, adopt environment friendly refrigerating fluid, by plate type heat exchanger, low-temperature refrigerant and dry air interchange of heat are obtained low temperature cold air, high with traditional employing evaporative condenser refrigerating efficiency.
One embodiment of the present invention are also to comprise temperature booster, and described temperature booster one end is installed on the outlet of described high/low temperature gas piping, and the other end is connected with described incubation chamber.
Direct additional temperature booster in the refrigeration system of air compressor, freezing type drier, air filter, folding type cooling system, high/low temperature gas piping, incubation chamber composition, can realize the caloric test carrying out transmission product fast.
One embodiment of the present invention are that incubation chamber is divided into upper cover and lower cover, described temperature booster air extractor duct inserts incubation chamber lower cover and is screwed with it, and incubation chamber upper cover covers rear transmission product and also and between incubation chamber leaves gap in incubation chamber central authorities under being combined in incubation chamber.
Cryogenic air can be emptying through the gap of rotating, and can prevent hot air around from entering incubation chamber, can not make frosting on transmission product, freeze and affect the kinetic balance of transmission product.
One embodiment of the present invention be air filter comprise deoil, anhydrate air filter and heatless regeneration dry air filter.
The pressurized air produced by air compressor through freezing type drier, to deoil and water air filter deoils and anhydrates, dry through heatless regeneration dry air filter again, the compressed-air actuated dew temperature of further reduction, by making it to dried compressed air heating or refrigeration the temperature reaching setting, then pass into the incubation chamber wrapping transmission product.
Accompanying drawing explanation
Fig. 1 is each equipment connection schematic diagram in high/low temperature environmental simulation test facility of the present invention;
Fig. 2 is each parts connection diagram in folding type cooling system:
Fig. 3 is the assembling schematic diagram that transmission product actual package is lived by incubation chamber.
Detailed description of the invention
As shown in Figure 1 sequencing by air compressor 1, prepositionly to deoil, anhydrate air filter 2(2), freezing type drier 3, rearmountedly to deoil, anhydrate air filter 4(3), heatless regeneration dry air filter 5(2), folding type cooling system 6 couples together with tracheae, high/low temperature gas piping 7 one connects folding type cooling system, other end connects temperature booster 8, temperature booster 8 air extractor duct inserts incubation chamber 9 and fixes with incubation chamber 9.
As shown in Figure 2, stacked refrigeration system is made up of two independent refrigerating cycle, is called high-temperature level refrigeration cycle and low-temperature level refrigeration cycle.By compressor 601, air-cooled radiator 602, dryer 603, capillary tub 604, plate type heat exchanger 605 connect for high-temperature level refrigeration cycle, what connected by compressor 611, air-cooled radiator 612, dryer 613, capillary tub 614, plate type heat exchanger 615 is low-temperature level refrigeration cycle.Its working process is: refrigerant R404a is compressed to higher pressure by compressor 601, the temperature of refrigerant R404a also rises thereupon, refrigerant R404a enters air-cooled radiator 602 and carries out interchange of heat with surrounding air, become normal temperature state after heat being passed to surrounding air and enter dryer 603, after super-dry, refrigerant R404a does work through capillary tub 604 adiabatic expansion, at this moment refrigerant R404a temperature is reduced to about-40 DEG C, then enters plate type heat exchanger 605.Refrigerant R23 is compressed to higher pressure by compressor 611, the temperature of refrigerant R23 also rises thereupon, refrigerant R23 enters air-cooled radiator 612 and carries out interchange of heat with surrounding air, become normal temperature state after heat being passed to surrounding air and enter plate type heat exchanger 615 this and low temperature about refrigerant R404a(-40 DEG C) carry out interchange of heat, refrigerant R23 reaches about-40 DEG C.Refrigerant R404a flows back to compressor 601 and continues compression cycle.Reach about-40 DEG C refrigerant R23 and enter dryer 614, after super-dry, refrigerant R23 does work through capillary tub 614 adiabatic expansion, at this moment refrigerant R23 temperature is reduced to about-70 DEG C, enter plate type heat exchanger 615 again and carry out interchange of heat with dry pressurized air, with this, pressurized air is down to about-70 DEG C, the pressurized air of about-70 DEG C flows into high/low temperature gas piping 8 and finally flows into incubation chamber 9.Refrigerant R23 flows back to compressor 611 and continues compression cycle.
As shown in Figure 3, temperature booster 8 air extractor duct inserts incubation chamber lower cover 9-1 and is screwed with it, incubation chamber upper cover 9-2 is combined in transmission product after on incubation chamber lower cover 9-1 and also and between incubation chamber 9 leaves gap in incubation chamber 9 central authorities, this gap can not be excessive, causes pressurized air to run off in a large number if cross conference; Gap can not be too small, incubation chamber 9 of grinding away when preventing transmission product from rotating.Incubation chamber 9 upper cover 9-1 to be covered on incubation chamber lower cover 9-2 and to fasten with snap close.
When needs carry out low temperature test, the test temperature reached in incubation chamber 9, is needed to be-51 DEG C.Open its pressure of air compressor respectively and be set to 0.6 ~ 0.7MPa, output gas flow flow is 10 ~ 13m
3/ h, opens freezing type drier 3, opens folding type cooling system 6 and tentatively arrange feed air temperature by its controller to be-70 DEG C.Now the pressurized air that exports of air compressor 1 is if Fig. 1 is through prepositionly deoiling, anhydrating air filter 2(2), freezing type drier 3, rearmountedly to deoil, anhydrate air filter 4(3), heatless regeneration dry air filter 5(2) after become the pressurized air of low dew point and enter folding type cooling system 6.Enter the plate type heat exchanger 615 in folding type cooling system as Fig. 2 pressurized air, carry out interchange of heat with the refrigerant R23 of-70 DEG C, become the pressurized air of-70 DEG C.Low temperature compressed air, by high/low temperature gas piping 7, enters in incubation chamber 9 through temperature booster 8, to reduce transmission product ambient temperature.The entry into service of transmission product, pressurized air flows away from the running clearance between incubation chamber 9 and transmission product.Temperature in monitoring incubation chamber, to regulate the set temperature of folding type cooling system 6 (temperature sensor can be increased as required to monitor the temperature that diverse location temperature in incubation chamber ensures all to reach test requirements document) more, carry out low temperature test temperature at present and be-51 DEG C, arranging feed air temperature for-60 DEG C by folding type cooling system 6 can meet test requirements document.
When needs carry out high temperature test, the test temperature reached in incubation chamber 9, is needed to be 121 DEG C.Open its pressure of air compressor 1 respectively and be set to 0.6 ~ 0.7MPa, output gas flow flow is 10 ~ 13m
3/ h, opens freezing type drier, opens folding type cooling system 6 be 130 DEG C by arranging feed air temperature, and arranges compressor 1 and do not work.Now the pressurized air that exports of air compressor is if Fig. 1 is through prepositionly deoiling, anhydrating air filter 2(2), freezing type drier 3, rearmountedly to deoil, anhydrate air filter 4(3), heatless regeneration dry air filter 5(2) after become the pressurized air of low dew point and enter folding type cooling system 6.The plate type heat exchanger 10 in folding type cooling system 6 is entered as Fig. 2 pressurized air, now compressor does not work, after pressurized air enters plate type heat exchanger 615, temperature does not change, directly enter temperature booster 8 by high/low temperature gas piping, this temperature booster 8 is nickel filament temperature booster, pass into incubation chamber 9 after compressed air temperature being heated to 130 DEG C, raise transmission product ambient temperature.The entry into service of transmission product, pressurized air can flow away from the running clearance between incubation chamber 9 and transmission product.Carrying out high temperature test temperature is at present 121 DEG C, arranges feed air temperature be 130 DEG C and can meet test requirements document by cascade refrigeration system 6 system.
When needs carry out high and low temperature impact test, folding type cooling system 6 starts work and exports low temperature compressed air as required, temperature booster 8 is entered by high/low temperature gas piping 7, when closedown temperature booster, what then enter incubation chamber 9 is low temperature cold air, and when heater 8 directly to low temperature compressed air heating, then what enter incubation chamber 9 is high-temperature hot air, realized the quick switching of height air by switch heater, realize high and low temperature impact test with this.
Claims (6)
1. a high/low temperature environmental simulation test facility, it is characterized in that, comprise the air compressor, freezing type drier, air filter, folding type cooling system, high/low temperature gas piping, the incubation chamber that connect successively, described incubation chamber wraps transmission product, pressurized air is after described freezing type drier and air filter filter, enter the cooling of described folding type cooling system, then enter incubation chamber by high/low temperature gas piping.
2. high/low temperature environmental simulation test facility according to claim 1, is characterized in that, described folding type cooling system comprises high-temperature level refrigeration cycle and low-temperature level refrigeration cycle.
3. high/low temperature environmental simulation test facility according to claim 1 and 2, it is characterized in that, described folding type cooling system comprises the compressor, air-cooled radiator, dryer, capillary tub and the plate type heat exchanger that connect successively, and low-temperature refrigerant and dry air interchange of heat are obtained low temperature cold air by described plate type heat exchanger.
4. high/low temperature environmental simulation test facility according to claim 1, is characterized in that, also comprise temperature booster, and described temperature booster one end is installed on the outlet of described high/low temperature gas piping, and the other end is connected with described incubation chamber.
5. high/low temperature environmental simulation test facility according to claim 4, it is characterized in that, described incubation chamber is divided into upper cover and lower cover, described temperature booster air extractor duct inserts incubation chamber lower cover and is screwed with it, and incubation chamber upper cover covers rear transmission product and also and between incubation chamber leaves gap in incubation chamber central authorities under being combined in incubation chamber.
6., according to the arbitrary described high/low temperature environmental simulation test facility of claim 1 to 5, it is characterized in that, described air filter comprise deoil, anhydrate air filter and heatless regeneration dry air filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310625040.0A CN104670523A (en) | 2013-11-28 | 2013-11-28 | High and low temperature environment simulation test device |
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| CN201310625040.0A CN104670523A (en) | 2013-11-28 | 2013-11-28 | High and low temperature environment simulation test device |
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| CN104670523A true CN104670523A (en) | 2015-06-03 |
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| CN201310625040.0A Pending CN104670523A (en) | 2013-11-28 | 2013-11-28 | High and low temperature environment simulation test device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105699039A (en) * | 2016-03-16 | 2016-06-22 | 中国直升机设计研究所 | High and low temperature environment test device for landing gear drop test |
| CN106225390A (en) * | 2016-08-31 | 2016-12-14 | 北京瑞尔腾普科技有限公司 | A kind of gas medium high/low temperature heat transfer system |
| CN108761236A (en) * | 2018-05-28 | 2018-11-06 | 北京智芯微电子科技有限公司 | Performance Test System and test method of the RFID tag under high/low temperature condition |
| CN110466810A (en) * | 2019-07-19 | 2019-11-19 | 北京空间飞行器总体设计部 | The space-environment simulator and its installation method of a kind of roll type boom mechanism |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030096215A1 (en) * | 2000-03-22 | 2003-05-22 | Than Yatming R. | Novel space simulation chamber and method |
| CN101013075A (en) * | 2006-11-27 | 2007-08-08 | 联合汽车电子有限公司 | Cold-hot gas flow high-speed high-low-temperature environmental testing machine |
| CN202420016U (en) * | 2012-01-11 | 2012-09-05 | 重庆市威尔试验仪器有限公司 | Superposition type cascade refrigerating system |
| CN202562512U (en) * | 2011-12-06 | 2012-11-28 | 中国测试技术研究院流量研究所 | Stepping type changeable environment simulation device |
| CN202835942U (en) * | 2012-09-06 | 2013-03-27 | 昆山一恒仪器有限公司 | Control system of cascade refrigerating unit |
-
2013
- 2013-11-28 CN CN201310625040.0A patent/CN104670523A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030096215A1 (en) * | 2000-03-22 | 2003-05-22 | Than Yatming R. | Novel space simulation chamber and method |
| CN101013075A (en) * | 2006-11-27 | 2007-08-08 | 联合汽车电子有限公司 | Cold-hot gas flow high-speed high-low-temperature environmental testing machine |
| CN202562512U (en) * | 2011-12-06 | 2012-11-28 | 中国测试技术研究院流量研究所 | Stepping type changeable environment simulation device |
| CN202420016U (en) * | 2012-01-11 | 2012-09-05 | 重庆市威尔试验仪器有限公司 | Superposition type cascade refrigerating system |
| CN202835942U (en) * | 2012-09-06 | 2013-03-27 | 昆山一恒仪器有限公司 | Control system of cascade refrigerating unit |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105699039A (en) * | 2016-03-16 | 2016-06-22 | 中国直升机设计研究所 | High and low temperature environment test device for landing gear drop test |
| CN105699039B (en) * | 2016-03-16 | 2019-02-26 | 中国直升机设计研究所 | A kind of high-low-temperature environmental testing device for landing gear drop test |
| CN106225390A (en) * | 2016-08-31 | 2016-12-14 | 北京瑞尔腾普科技有限公司 | A kind of gas medium high/low temperature heat transfer system |
| CN108761236A (en) * | 2018-05-28 | 2018-11-06 | 北京智芯微电子科技有限公司 | Performance Test System and test method of the RFID tag under high/low temperature condition |
| WO2019228538A1 (en) * | 2018-05-28 | 2019-12-05 | 北京智芯微电子科技有限公司 | Performance testing system and testing method for rfid tags in conditions of high and low temperatures |
| CN110466810A (en) * | 2019-07-19 | 2019-11-19 | 北京空间飞行器总体设计部 | The space-environment simulator and its installation method of a kind of roll type boom mechanism |
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Application publication date: 20150603 |