Cooling method of high and low temperature test chamber
If the high and low temperature test chambers are to achieve the effect of refrigeration, they need to be achieved by compressor refrigeration. The compressors are mainly divided into air-cooled and water-cooled, and another type of refrigeration is liquid nitrogen. How to choose the cooling mode of high and low temperature test chambers? According to the test temperature, the cooling method is also different.
"Air-cooled" means the meaning of natural cooling. It is generally suitable for low-power products. If the impact test chamber is used at a low ambient temperature or maintained at 5-25 ° C for a long time, and there is a suction device. In order to ensure that the equipment works in the most comfortable environment and extend the service life.
"Water-cooled" uses the fluidity of the water to dissipate heat. It is necessary to install a water tower with a comparable amount of water according to the impact test chamber. The general recommendation is 8-16 tons. The water tower cannot be placed indoors, and can only be placed on the roof or downstairs, and during maintenance. It is also more troublesome, the water pipe must be packaged, otherwise it is easy to sun or frostbite, but in the end, in fact, there is no big difference between the two, it is for heat dissipation, but the heat dissipation method is different, mainly according to the customer's Choices vary with environmental requirements. At the same time, as a manufacturer of high and low temperature impact test chambers, we will also provide you with the most reasonable solution based on field considerations.
Liquid nitrogen In industrial production, liquid nitrogen is obtained by fractional distillation of compressed liquid air, which can be used as a deep refrigerant. Due to its chemical inertness, it can be directly contacted with biological tissues and immediately frozen without destroying biological activity. And the liquid nitrogen temperature can reach -196 °C, we have been in the process of research and development of environmental testing equipment, using liquid nitrogen as a refrigerant instead of the compressor, and the technology of the low temperature test chamber is improved. Production of liquid nitrogen cryogenic cold box.
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