What are the protection devices of industrial chillers

What are the protection devices of industrial chillers

Due to the particularity of its own equipment and the complexity of the use environment, industrial chillers must be equipped with some protective devices to protect themselves when producing industrial chillers, and only industrial chillers equipped with various protective devices , It is easier to be selected by customers. So, what protection devices do industrial chillers usually have?

In fact, according to the different types of industrial chillers, the protective devices they should have are also slightly different. For example, the two different condensers and condensing methods of air-cooled industrial chillers and water-cooled industrial chillers, then they The protection devices provided are not the same, but the two also have many similarities. The protection devices for compressors are basically similar.

The compressor is an important component of industrial chillers. Therefore, protecting the compressor from damage is what every chiller manufacturer must think and do. In general, the compressor should have the following protection devices to ensure its own Normal and stable operation, and self-protection in case of accidents.

　　1. Protection of excessive suction pressure and discharge pressure

　　 Intake and exhaust are two important links in the compressor working process of industrial chillers. Too low suction and discharge pressure will not cause fatal damage to the compressor, while too high suction or discharge pressure will cause damage to the compressor of the industrial chiller. The principle of suction and discharge pressure protection is to use the pressure controller to ensure that the compressor will not continue to work when the pressure is too high, thereby protecting the compressor. This is the high and low pressure protection device.

　　2, overload protection.

　　 Overload protection is also for the compressor. Overload protection refers to the compressor will protect itself when the industrial chiller is facing work beyond its own load range, so as not to cause various malfunctions of the compressor due to load.

　　3, temperature protection.

The temperature protection uses a temperature controller. Once a monitored temperature exceeds a certain value, the temperature protector will function, and the compressor will not continue to work, let alone cause the temperature to be too high. The compressor is damaged. The temperature monitored by the temperature controller can include suction temperature, discharge temperature, and lubricating oil temperature. Here, professional chiller manufacturers recommend choosing refrigerated lubricating oil with high flash point and meeting the operating requirements of industrial refrigerators.

In addition, the chiller manufacturer should also install a cut-off protection device for the industrial chiller. Its main function is to prevent the compressor from continuing to work after the cooling water cuts off and cause damage. There is also a water flow protection device to prevent insufficient water flow to cause industrial cold water. Overheating of the unit system, lack of phase and reverse phase protection device for compressor, etc.