All-weather variable-working-condition compensating type high-low-temperature environment simulating test chamber

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 [0001] The present invention relates to a simulation experiment equipment, in particular to an all-weather variable working condition compensation type high and low temperature environment simulation test chamber, especially relates to creating test environment conditions for the tested equipment to verify that the tested equipment is under the design working conditions Whether the technical performance parameters meet the requirements. technical background [0002] With the globalization of human activities, production tools and equipment need to be able to adapt to work under global climate conditions. The global climate conditions are extremely cold and extremely hot. How to verify that the equipment can work under these conditions requires knowledge. The equipment can simulate this environmental condition, and the all-weather variable working condition compensation type high and low temperature environmental simulation test chamber is a device that simula...

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Problems solved by technology

At present, the temperature fluctuation range of these two environmental simulation test chambers is ±0.5°C, the temperature uniformity is ±2°C, the temperature range covers the whole range and the main reasons for the inability to provide the stable water source and full amplitude required by the tested equipment are: (1) Provide The stable water source required by the tested equipment needs to provide a set of low temperature water supply equipment and temperature control system, the control system is complicated and the investment cost is high; The low temperature test equipment has significant impact and damage; (3) Because the method of controlling the temperature accuracy in the low temperature range and the high temperature range is different, the temperature control accuracy in the whole range cannot meet the test requirements

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