The above mainly introduces the working conditions of various components in the constant temperature and humidity test chamber when the temperature is above 89 degrees. Now, the control method and humidity control method when the test temperature is below 89 degrees are explained.
The constant temperature and humidity test chamber is generated by the heat output of the solid state relay on one side; the other is cooled by the compressor refrigeration cycle to achieve dynamic balance; the temperature inside the tank is constant.
Cooling is the main part of the constant temperature and humidity test chamber. It is an important parameter to judge the performance of a constant temperature and humidity machine. It includes four parts: compressor, condenser, throttling device and evaporator.
The compressor is the heart of the refrigeration system. It sucks low-temperature and low-pressure gas, turns into high-temperature and high-pressure gas through the expansion valve, releases heat by condensing into liquid, and removes heat through the fan. Therefore, the temperature of the constant temperature and humidity machine is caused by hot air, and then by throttling to The liquid is pressed, and then passed through the evaporator to become a low-temperature low-pressure gas and finally returned to the compressor; the refrigerant absorbs heat in the evaporator to complete the gasification process and absorb heat, thereby achieving the purpose of cooling, and completing the cooling process of the constant temperature and humidity machine.
The humidification system of the constant temperature and humidity test chamber is substantially the same as the heating system; it is a process in which the heater heats the water to become a steam; the purpose of humidifying the constant temperature and humidity machine is completed.
The constant temperature and humidity test chamber dehumidification system is also completed by the refrigeration system, and the evaporator is placed inside the constant temperature and humidity machine; relatively cold, the high humidity gas inside the constant temperature and humidity machine will see the cold object condense into liquid; thus repeating the high humidity of the box There will be very little gas to achieve the purpose of dehumidification. 
Frozen Meat Breaker And Grinder
Frozen meat breaker/frozen meat breaker/meat grinder/meat mincer is the first step of high quality products production. They are used for pre-breaking frozen meat blocks stacked on pallets. It includes bone saw series, frozen meat cutting machine, frozen meat flaker,grinder series, etc. Customers will use different machines depending on the processing needs and to form an automatic production line. No need of defrosting of the meat, Helper`s breaker series has been designed to cut off a whole block of meat in meat pieces with a blades system, avoiding second time pollution and keeping meat texture.
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Frozen meat grinder series: JR-120, JR-140, JR-300, chopping and grinding combination system.
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