The working principle and structure of the constant temperature and humidity machine

When the constant temperature and humidity machine treats indoor air, it can not only cool down, dehumidify, but also heat and humidify, and control temperature and humidity
.

The control range of temperature is generally 20-25 °C, and the relative humidity control range is generally 50%-70% RH
.

This air conditioner is suitable for precision machinery, optical instruments, electronic instruments production workshops, measuring rooms and scientific research
that require constant temperature and humidity.

The whole refrigeration cooling cycle process is the same as the general refrigeration cycle, but its components are more
.

The refrigeration compressor adopts 3FW5B semi-enclosed compressor, the condenser is water-cooled casing type, and is equipped with an electromagnetic feed valve, when the temperature and humidity test box automatically stops, the solenoid valve automatically closes the water source
.

The humidifier is electrode type, which is to use three copper rods or stainless steel rods as electrodes, and it is installed in a porcelain container according to a certain distance and size, with water as a resistance, due to the resistance of water and heat generation, the water itself is heated and evaporated into water vapor, and sent to the humidified air through the
outlet.

The higher the water level in this humidifier, the stronger the current passed, and the more vapor is generated, so the water level can be adjusted by changing the position of the overflow pipe, so as to adjust the humidification amount
.

The fan is a double centrifugal fan with a speed of 960 rpm and an air volume of 2000 m.
/h
.