What are the internal components of the constant temperature and humidity machine

Time:2021/9/30 14:09:38

The constant temperature and humidity machine is a kind of precision testing equipment. The constant temperature and humidity machine occupies an important position in industrial production. The constant temperature and humidity machine is mainly used to determine the stability of various materials at high and low temperatures. The constant temperature and humidity machine has also become an important basis for product quality inspection. So what parts can the interior of the constant temperature and humidity machine be divided into? Next, let the editor of the constant temperature and humidity machine explain it, I hope it can be helpful to everyone .

1. Refrigeration unit

The cooling system is one of the key components of the constant temperature and humidity machine. The constant temperature and humidity mechanical cooling system consists of two parts, a high temperature part and a low temperature part, each part is a relatively independent cooling system. The refrigerant in the high-temperature section evaporates and absorbs heat from the refrigerant in the low-temperature section to evaporate; the refrigerant in the low-temperature section evaporates and absorbs heat from the object to be cooled (the air in the test room) to obtain cold energy.

2. Control system

The control system is the core part of the constant temperature and humidity machine, which determines the heating speed and accuracy of the constant temperature and humidity machine and other important indicators.

3. Heating system

Compared with the cooling system, the heating system of the constant temperature and humidity machine is relatively simple. It is mainly composed of high-power resistance wire. Because the constant temperature and humidity machine requires a fast heating speed, the heating system of the constant temperature and humidity machine is relatively large, and the bottom plate of the constant temperature and humidity machine is also equipped with a heater.

4. Moisture-proof system

(1) Humidification system: The humidification method of constant temperature humidifier usually adopts steam humidification, and low-pressure steam can be directly injected into the humidification test site. This kind of humidification method has good humidification ability and fast humidification speed, especially when the temperature drops, it is easy to humidify.

(2) Dehumidification system. The dehumidification methods of constant temperature and humidity machines are generally divided into mechanical cooling dehumidification and dry dehumidification.

5. Sensor system

The sensor is basically a temperature and humidity sensor. Commonly used are platinum group and thermocouple. There are two methods for measuring humidity, namely the dry and wet bulb method and the direct measurement method using solid-state electronic sensors.

6. Air circulation system

The air circulation system usually consists of a centrifugal fan and a motor that drives it, which can provide air circulation in the test room.

The above six points are all about the internal structure of the constant temperature and humidity machine. Thank you for your understanding and support!