CN104549577A - All-weather variable-working-condition compensating type high-low-temperature environment simulating test chamber - Google Patents
All-weather variable-working-condition compensating type high-low-temperature environment simulating test chamber Download PDFInfo
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- CN104549577A CN104549577A CN201410848206.XA CN201410848206A CN104549577A CN 104549577 A CN104549577 A CN 104549577A CN 201410848206 A CN201410848206 A CN 201410848206A CN 104549577 A CN104549577 A CN 104549577A
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Abstract
The invention relates to an all-weather variable-working-condition compensating type high-low-temperature environment simulating test chamber. The test chamber comprises an environmental climate simulating chamber, an air-cooled refrigerating device, a liquid-cooled source device and a control table, wherein a constant flow air supply device is arranged on the inner wall of the environmental climate simulating chamber, tested equipment is arranged in the environmental climate simulating chamber, the air-cooled refrigerating device comprises a compressor, a condenser, a condensing pressure regulating valve, a liquid storage device, a drying filer, an electromagnetic valve, an expansion valve and an air cooler, which are sequentially connected, the air outlet of the air cooler is connected with the constant flow air supply device, the air return of the air cooler is connected with the compressor, the liquid-cooled source device is a secondary coolant refrigerating and heating system, and the secondary refrigerant refrigerating and heating system supplies coolant water and heating medium water and is connected with the tested equipment.
Description
Technical field
The present invention relates to a kind of simulation experiment device, a kind of round-the-clock variable working condition offset-type high-low temperature environment simulation test box specifically, experimental enviroment condition is created, to verify whether tested equipment each Technique performance parameter under design conditions condition meets the demands in particular to for tested equipment.
Technical background
Along with the globalization of mankind's activity scope, the tool of production and equipment needs can adapt to work under global climate condition, global climate condition has extremely cold and very hot two kinds of operating modes, how Authentication devices can work with this understanding, the equipment of needing can simulate this environmental condition, and round-the-clock variable working condition offset-type high-low temperature environment simulation test box is exactly the device of simulation creation two kinds of work condition environment conditions.Have 2 two kinds: one to be hot environment boiler-plate at the equipment of current simulation extreme weather conditions, temperature from normal temperature to 70 DEG C, and equipment of can not creating runs under working condition needed for the water that uses of stable cooling or heating; Two is low temperature environment boiler-plates, and temperature is from normal temperature to-55 DEG C, and equipment of can not creating runs the water that required stable cooling or heating use under working condition.These two kinds of environmental simulation test case temperature fluctuation amplitude ± 0.5 DEG C at present, temperature homogeneity ± 2 DEG C, temperature range covers gamut and can not provide the main cause of stable source of water needed for equipment under test and double amplitude to be: (1) provides stable source of water needed for equipment under test to need to provide a set of low temperature supplying wetting system and not temperature control system, control system complexity and cost of investment high; (2) the interval and low-temperature test interval of at present hot test can not be share a case reason and is: have significant impact and damage to low-temperature test equipment during hot test; (3) because control temperature precision methods between low-temperature range and high-temperature region is different, between the whole district, temperature control precision does not reach test requirements document.
Summary of the invention
The object of the present invention is to provide a kind of round-the-clock variable working condition offset-type high-low temperature environment simulation test box, for tested equipment to create from low temperature to the high temperature whole district experimental enviroment condition, meet tested apparatus-form test demand.
The technical solution used in the present invention is: a kind of round-the-clock variable working condition offset-type high-low temperature environment simulation test box, comprise amblent air temperature boiler-plate, air-cooled cold storage plant, liquid cooling source apparatus and console, described amblent air temperature simulation box inwall is provided with current-sharing air-supply arrangement, equipment under test is arranged in amblent air temperature simulation box, described air-cooled cold storage plant comprises the compressor connected successively, condenser, condensation pressure regulation valve, reservoir, device for drying and filtering, magnetic valve, expansion valve and air-cooler, air-cooler air-out connects current-sharing air-supply arrangement, air-cooler return-air connects compressor, described liquid cooling source apparatus is secondary refrigerant refrigerating and heating systems, secondary refrigerant refrigerating and heating systems is for chilled water, heat medium water connects equipment under test.
Further, call button is provided with in described amblent air temperature simulation box.
Further, described air-cooler or current-sharing air-supply arrangement are provided with electrical heating.
Further, described secondary refrigerant refrigerating and heating systems comprises refrigeration module, heat exchanger, cold water storage cistern, boiler, cold water triple valve, hot water triple valve, water pump, electrical heating is provided with in boiler, more than one refrigeration module connects a flow process of heat exchanger, the outlet of another flow process connects cold water storage cistern, cold water storage cistern outlet at bottom connects cold water triple valve, cold water triple valve also connects bottom boiler and water pump, water pump connects equipment under test water inlet, equipment under test delivery port connects hot water triple valve, hot water triple valve also connects the import of boiler and another flow process of heat exchanger.
Further, described cold water storage cistern is communicated with hot water tank top and external gas vent.
Further, the balance pipe of described exhaust outlet of compressor band balanced valve connects reservoir.
Further, described condenser is the air-cooled condenser of band cooling blower.
Again further, implementation of port is provided with between described reservoir and device for drying and filtering.
Air-cooled refrigeration operation principle: when the probe temperature set in amblent air temperature boiler-plate is lower than residing for amblent air temperature boiler-plate during environment temperature, air-cooled cold storage plant starts, compressor, cooling blower, air-cooler work, send into cold air to reach design temperature and to keep by air-cooler by current-sharing air-supply arrangement in amblent air temperature boiler-plate, when reaching design temperature in amblent air temperature boiler-plate gradually, compressor load is smaller, and console controls the action of compressor energy adjustment cylinder head, and compressor energy adjustment is to match with load, when residing for amblent air temperature boiler-plate, environment temperature is lower, Compressor Discharge Pressure is lower, when affecting the normal open degree of expansion valve, condensation pressure regulation valve events, control the amount being entered liquid refrigerant in liquid reservoir by air-cooled condenser, by the effective heat exchange area regulating air-cooled condenser stored in the refrigerant amount in air-cooled condenser, reach and control heat exchange amount, the pressure at expulsion of final control compressor, namely the condensing pressure of the air-cooled cold storage plant of refrigeration system is improved, ensure that air-cooled cold storage plant can normally can work under annual weather conditions by above method, also just ensure that round-the-clock variable working condition offset-type high-low temperature environment simulation test box can normally can work under annual weather conditions.When in test thermal-insulating body, design temperature is higher than environment temperature, only start the electric heater in air-cooler, and in amblent air temperature boiler-plate, send into hot-air to reach design temperature gradually and to keep by current-sharing air-supply arrangement, electric heater heating watt level carries out step-less adjustment by controllable silicon, to match with amblent air temperature boiler-plate internal loading.
Liquid cooling source apparatus operation principle is: when equipment under test needs the chilled water lower than environment temperature, start refrigeration module, to heat exchanger for liquid refrigerant, cold water triple valve be communicated with cold water storage cistern open, hot water triple valve be communicated with boiler close, cold water storage cistern inner cold water by cold water triple valve through water pump deliver to after equipment under test through hot water triple valve be back to heat exchanger force drive stream reduce temperature; When equipment under test needs the heat medium water lower than environment temperature, cold water triple valve is communicated with boiler and opens, hot water triple valve is communicated with boiler and opens, hot water after being heated by electric heater in boiler is by hot water triple valve, or cold water triple valve connection cold water storage cistern is suitably opened, carry out ratio with water in cold water storage cistern to mix, thus obtain stable water temperature, meet equipment under test instructions for use.When equipment under test needs to use the water higher than environment temperature, the work of boiler electric heater adds the water circulated, and reaches the requirement improving water temperature, simultaneously by the caloric value of SCR control electric heater, ensure that water temperature maintains setting value, meet test instructions for use; Console, by programmable controller PLC, controls air-cooled cold storage plant, liquid cooling source apparatus and amblent air temperature boiler-plate three cooperation control requirement between control overflow and three separately, meets round-the-clock variable working condition offset-type high-low temperature environment simulation test box test request.
The secondary refrigerant refrigerating and heating systems of the air-cooled cold storage plant and creation high temperature of creating low temperature merges by the present invention, make it can create the environmental simulation temperature of any a certain temperature requirement between-55 DEG C ~ 70 DEG C in amblent air temperature boiler-plate by optimal design control method simultaneously, test equipment under test is in this storage under ambient conditions, start-up and operation performance, simultaneously can provide 7 DEG C ~ 55 DEG C stable hot and cold matchmaker's water, to meet each operating condition of equipment under test to equipment under test.There is stable work in work, control accuracy be high, operating efficiency is high, compact conformation, the feature such as simple to operate, the round-the-clock variable working condition offset-type high-low temperature environment simulation test box of different size meets the demand of all kinds of client.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure: air-cooled cold storage plant 1, compressor 2, balance pipe 3, air-cooled condenser 4, cooling blower 5, condensation pressure regulation valve 6, reservoir 7, device for drying and filtering 8, magnetic valve 9, expansion valve 10, air-cooler 11, electrical heating 12, amblent air temperature boiler-plate 13, current-sharing air-supply arrangement 14, equipment under test 15, liquid cooling source apparatus 16, heat exchanger 17, cold water storage cistern 18, boiler 19, cold water triple valve 20, hot water triple valve 21, water pump 22, refrigeration module 23, console 24.
Detailed description of the invention
Be described further below in conjunction with accompanying drawing.
Shown in Fig. 1, a kind of round-the-clock variable working condition offset-type high-low temperature environment simulation test box comprises amblent air temperature boiler-plate 13, air-cooled cold storage plant 1, liquid cooling source apparatus 16 and console 24, amblent air temperature simulation box 13 inwall is provided with current-sharing air-supply arrangement 14, and equipment under test 15 is arranged in amblent air temperature simulation box 13, is provided with call button in amblent air temperature simulation box, and air-cooled cold storage plant 1 comprises compressor 2, balance pipe 3, air-cooled condenser 4, cooling blower 5, condensation pressure regulation valve 6, reservoir 7, device for drying and filtering 8, magnetic valve 9, expansion valve 10 and air-cooler 11, the balance pipe 3 of compressor 2 exhaust outlet band balanced valve connects reservoir 7, compressor 2 exhaust outlet also connects the air-cooled condenser 4 with cooling blower 5, and air-cooled condenser 4 connects reservoir 7 through condensation pressure regulation valve 6, reservoir 7 drying filter 8, magnetic valve 9, expansion valve 10 connects air-cooler 11, implementation of port is provided with between reservoir 7 and device for drying and filtering 8, air-cooler 11 air-out connects current-sharing air-supply arrangement 14, air-cooler or current-sharing air-supply arrangement are provided with electrical heating 12, air-cooler 11 return-air connects compressor 2, liquid cooling source apparatus 16 is secondary refrigerant refrigerating and heating systems, and secondary refrigerant refrigerating and heating systems comprises refrigeration module 23, heat exchanger 17, cold water storage cistern 18, boiler 19, cold water triple valve 20, hot water triple valve 21, water pump 22, is provided with electrical heating in boiler 19, and refrigeration module 23 is common compressor, condenser, reservoir syndeton, more than one refrigeration module 23 connects a flow process of heat exchanger 17, the outlet of another flow process connects cold water storage cistern 18, cold water storage cistern 18 outlet at bottom connects cold water triple valve 20, cold water triple valve 20 also connects bottom boiler 19 and water pump 22, water pump 22 connects equipment under test 15 water inlet, equipment under test 15 delivery port connects hot water triple valve 21, hot water triple valve 21 also connects the import of boiler 19 and another flow process of heat exchanger 17, and cold water storage cistern is communicated with hot water tank top and external gas vent.
Claims (8)
1. a round-the-clock variable working condition offset-type high-low temperature environment simulation test box, comprise amblent air temperature boiler-plate, air-cooled cold storage plant, liquid cooling source apparatus and console, described amblent air temperature simulation box inwall is provided with current-sharing air-supply arrangement, equipment under test is arranged in amblent air temperature simulation box, described air-cooled cold storage plant comprises the compressor connected successively, condenser, condensation pressure regulation valve, reservoir, device for drying and filtering, magnetic valve, expansion valve and air-cooler, air-cooler air-out connects current-sharing air-supply arrangement, air-cooler return-air connects compressor, described liquid cooling source apparatus is secondary refrigerant refrigerating and heating systems, secondary refrigerant refrigerating and heating systems is for chilled water, heat medium water connects equipment under test.
2. one according to claim 1 round-the-clock variable working condition offset-type high-low temperature environment simulation test box, is characterized in that: be provided with call button in described amblent air temperature simulation box.
3. one according to claim 1 round-the-clock variable working condition offset-type high-low temperature environment simulation test box, is characterized in that: described air-cooler or current-sharing air-supply arrangement are provided with electrical heating.
4. one according to claim 1 round-the-clock variable working condition offset-type high-low temperature environment simulation test box, it is characterized in that: described secondary refrigerant refrigerating and heating systems comprises refrigeration module, heat exchanger, cold water storage cistern, boiler, cold water triple valve, hot water triple valve, water pump, electrical heating is provided with in boiler, more than one refrigeration module connects a flow process of heat exchanger, the outlet of another flow process connects cold water storage cistern, cold water storage cistern outlet at bottom connects cold water triple valve, cold water triple valve also connects bottom boiler and water pump, water pump connects equipment under test water inlet, equipment under test delivery port connects hot water triple valve, hot water triple valve also connects the import of boiler and another flow process of heat exchanger.
5. one according to claim 1 round-the-clock variable working condition offset-type high-low temperature environment simulation test box, is characterized in that: described cold water storage cistern is communicated with hot water tank top and external gas vent.
6. one according to claim 1 round-the-clock variable working condition offset-type high-low temperature environment simulation test box, is characterized in that: the balance pipe of described exhaust outlet of compressor band balanced valve connects reservoir.
7. one according to claim 1 round-the-clock variable working condition offset-type high-low temperature environment simulation test box, is characterized in that: described condenser is the air-cooled condenser of band cooling blower.
8. one according to claim 1 round-the-clock variable working condition offset-type high-low temperature environment simulation test box, is characterized in that: be provided with implementation of port between described reservoir and device for drying and filtering.
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Cited By (7)
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| CN105115186A (en) * | 2015-09-15 | 2015-12-02 | 江苏天舒电器有限公司 | Cold and heat balance device of heat pump water heater test room |
| CN107349974A (en) * | 2017-09-01 | 2017-11-17 | 合肥风生水起信息科技有限公司 | A kind of low temperature impact test box |
| CN108187773A (en) * | 2017-12-27 | 2018-06-22 | 天津亭华科技有限公司 | A kind of high-low-temperature cold test system |
| CN110429588A (en) * | 2019-07-22 | 2019-11-08 | 上海交通大学 | Power electronic system Work condition analogue device with output compensation |
| CN114377744A (en) * | 2022-01-25 | 2022-04-22 | 威乐(中国)水泵系统有限公司 | Water pump simulation environment multifunctional test bench |
| CN114704996A (en) * | 2022-03-29 | 2022-07-05 | 南京创维电器研究院有限公司 | Control method for solving low-temperature non-starting problem of direct-cooling refrigerator by using computer board |
| CN117091316A (en) * | 2023-10-19 | 2023-11-21 | 成都电科星拓科技有限公司 | High-low temperature working condition simulation module, chip reliability automatic test system and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114377744A (en) * | 2022-01-25 | 2022-04-22 | 威乐(中国)水泵系统有限公司 | Water pump simulation environment multifunctional test bench |
| CN114704996A (en) * | 2022-03-29 | 2022-07-05 | 南京创维电器研究院有限公司 | Control method for solving low-temperature non-starting problem of direct-cooling refrigerator by using computer board |
| CN114704996B (en) * | 2022-03-29 | 2024-03-19 | 南京创维电器研究院有限公司 | Control method for solving problem of low-temperature non-starting of direct-cooling refrigerator by using computer board |
| CN117091316A (en) * | 2023-10-19 | 2023-11-21 | 成都电科星拓科技有限公司 | High-low temperature working condition simulation module, chip reliability automatic test system and method |
| CN117091316B (en) * | 2023-10-19 | 2024-01-26 | 成都电科星拓科技有限公司 | High-low temperature working condition simulation module, chip reliability automatic test system and method |
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