Most of the failures of the refrigeration unit can be attributed to the failure of the compressor. In terms of the different problems of the failure of the refrigeration unit, we should analyze them one by one, and solve the failure of the refrigeration unit in turn, summarizing the common failures of some refrigeration units. the reason.
Refrigeration compressor caused frequent start several reasons:
1. The amplitude difference of the low-voltage relay is too small, or in the joint temperature control system of the temperature relay and the low-voltage relay, the amplitude difference of the temperature relay is too small;
2. The suction and exhaust valve or safety valve of the compressor leaks, so the high pressure gas will leak to the low pressure system after the shutdown, the pressure will rise quickly and the compressor will start. After the start, the pressure of the low pressure system will be quickly pumped down, low pressure. The relay is stopped again;
3. The automatic oil return valve of the oil separator leaks;
4, expansion valve ice plug.
Causes the compressor to run too long
The root cause of the compressor running time is too long, the cooling capacity of the device is insufficient or the heat load of the cold storage is too large. The main ones are:
1. The evaporator is too thick or too oily;
2. The circulation of the refrigerant in the system is insufficient, or the liquid refrigerant pipeline is not smooth enough;
3. The actual gas transmission volume of the compressor is significantly reduced due to leakage of the suction and exhaust valve, serious leakage of the piston ring or failure of the compressor to load.
4. The thermal load of the cold storage is too large due to the insulation damage of the cold storage, the tightness of the warehouse door or the release of a large number of hot goods;
5. The control components such as the temperature relay, low-voltage relay or liquid supply solenoid valve fail, so that the temperature of the library reaches the lower limit. But the compressor can't stop in time.
Android is an open source mobile operating system based on Linux platform released by Google at the end of 2007, and then improved for use in netbooks and MIDs. The platform consists of operating system, user interface and application software, and is claimed to be the first truly open and complete mobile software for mobile terminals.
To put it simply, the Android system is actually a very open system. It can not only realize the functions of the most commonly used notebook computers, but also realize various directional operations like mobile phones. Moreover, it is specially designed for mobile phones. The operating system developed for equipment has advantages in system resource consumption and human-computer interaction design. It is an operating system that combines traditional and advanced advantages.
New Android Tablet,Android Tablet,New Android Tablet
Jingjiang Gisen Technology Co.,Ltd , https://www.jsgisentec.com