We know that the artificial environment refers to the artificial method to constitute all cold water machine price people hope to achieve environmental conditions, including various terrestrial climate change, high altitude cosmic and other special requirements. Next, we reveal the cooling mechanism of the cold water machine with different low temperature, the content of improving the experimental conditions.
We need to know what kind of artificial environment test requires low temperature conditions. After analysis, the experiment of artificial environment related to refrigeration is summarized in the following:
1, low temperature environmental test: it includes products in the low temperature environment - performance test, temperature impact test (the ability to withstand the temperature cycle of products), etc..
2, damp heat test: the effect of temperature and humidity on the performance of the product.
3, salt spray test: the product is placed in a high humidity salt spray environment to test the corrosion resistance of products and components.
4, a variety of climatic test: including temperature, wind speed, rain, snow, sand test, also known as all-weather test.
5, space simulation test: the simulation of the aircraft into the high-altitude situation, the environment is characterized by low temperature and vacuum
Industrial cold water machine for artificial environment test, the method of obtaining low temperature can have the following:
1, the use of refrigerant consumption: in requirements of fast cooling, the use of short time, can be used depleting refrigerants, such as liquid nitrogen and dry ice.
2, multi-stage refrigeration: can use a single refrigerant for two or more compression, two or more throttling, in order to achieve the purpose of the preparation of low temperature.
3, cascade refrigeration: two or more different types of refrigerant composition of the cascade refrigeration system. For example, in the cascade vapor compression refrigeration cycle, the low pressure evaporation of high temperature refrigerant is used to condense the high pressure steam of the low temperature refrigerant, and the refrigerating effect of the low temperature refrigerant is obtained.
4, gas refrigeration: the use of compressed gas to promote the expansion of thermal expansion, external work, so that gas temperature decreases, and achieve the purpose of cooling. The gas refrigeration cycle may also form a multi-stage or complex form.
In short, we reveal the different low temperature refrigeration refrigeration means to improve the experimental conditions of heat pump, the heat pump has the above content. Temperature environment test of the refrigeration system using water chiller refrigeration, the refrigerant now use environmentally friendly refrigerant and the throttle by capillary or thermal expansion valve, can improve the precision and the loop of life, and can work for a long time continuously.