How to clean sanitized door locks during an outbreakThe new coronavirus outbreak is very serious, so whether at home or outdoors, the government is advocating and asking people to "go out, get less party" and isolate the spread of the virus, which is a very important measure. However, ensuring the h

Introduction to the composition of refrigerated truck refrigeration system and the role of each component（3）The evaporator is also a heat exchange device. The low-temperature and low-pressure refrigerant liquid after throttling evaporates in it to become vapor, absorbs the heat of the material to be

Introduction to the composition of refrigerated truck refrigeration system and the role of each component（2）The refrigeration system is composed of refrigerant and four major parts, namely compressor, condenser, expansion valve and evaporator. Compressor Compressor is the driving force of the refrig

Introduction to the composition of refrigerated truck refrigeration system and the role of each component（1）The principle of refrigeration of general refrigerators The compressor's role is to compress the lower pressure steam into higher pressure steam, so that the volume of the steam is reduced and

Analysis and prevention of hidden dangers of refrigerated truck accidents（2）During the unloading process, the cargo compartment was opened for too long. When the refrigerated truck is unloading, it is necessary to keep the container door open, but if the unloading speed is too slow or the door is no

Analysis and prevention of hidden dangers of refrigerated truck accidents（1）A refrigerated truck is a closed van transport vehicle used to transport frozen or fresh-keeping goods. In recent years, as people's requirements for the quality of food preservation and vaccines have become higher and highe

Maintenance and repair of key components of refrigerated trucks（4）The reasons for both high pressure and low pressure include air, too much refrigerant, poor condenser cooling effect, and too large expansion valve opening. First observe whether there is frost on the low pressure pipe. If frost is fo

Maintenance and repair of key components of refrigerated trucks（3）The refrigeration unit consists of an engine system, a refrigeration system, backup power and electrical control devices. The reasons and troubleshooting methods for compressors running normally but not cooling are mainly as follows:T

Maintenance and repair of key components of refrigerated trucks（2）The cleaning of refrigerated trucks is very important. Cleaning the refrigerated compartment has two functions. One is to keep the interior of the compartment clean and prevent strange smells from appearing in the compartment. In addi

Maintenance and repair of key components of refrigerated trucks（1）The refrigerated truck has become one of the important members of modern transportation tools. Because it is equipped with refrigeration units and special refrigeration containers, it is widely used in many fields such as food, medici