Danfoss Compressor MT080HP7HVE

06/27/2020

The sign of the normal operation of the refrigeration unit

The sign of the normal operation of the refrigeration unit 1. There is no knocking sound in the piston refrigeration compressor, the compressor is operating normally, the expansion valve opening is adjusted properly, and there is only compressor suction and exhaust sound during operation, and no knocking or other abnormal sounds are produced.

06/14/2020

When the compressor is running, some abnormal conditions may occur

When the compressor is running, some abnormal conditions may occur, such as: the discharge pressure is too high, the suction pressure is too low, the oil pressure is insufficient, the motor is overheated, and excessive liquid enters the cylinder. When an ﰸ2䀀
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07/16/2020

Working principle of scroll compressor

1. The pressure of the scroll compressor is generated due to the interaction between the scroll disks that make planetary motion. When one of the scroll disks makes planetary motion, the gas enters from the outer opening.

08/14/2020

Commissioning of the water system (heat source) of the air conditioning system-equipment commissioning

Water test operation of surface cooler and spray device in air conditioning unit. Check whether the pressure difference between the inlet pipe pressure and the outlet pipe pressure of the meter cooler is within the normal range and whether there is water leakage; whether the water trap of the meter cooler is installed correctly and whether the discharge is smooth.

08/03/2020

Causes, harm, treatment and prevention methods of refrigeration compressor liquid strike

Liquid hammer refers to the situation in which the refrigerant liquid or wet vapor is sucked into the compressor by the compressor due to the failure or insufficient heat absorption and evaporation of the refrigerant, which is called liquid hammer.<br></bžﰨ2䀀

06/29/2020

Suggestions for troubleshooting of compressor with liquid start

08/12/2020

Method for cleaning and protecting plates of plate heat exchanger

In addition to maintenance under special circumstances, the plate heat exchanger should also be regularly maintained. Due to the convenient disassembly and assembly of the plate heat exchanger and simple maintenance, special tools and equipment are genera¨ﰨ2䀀湠疨

09/16/2025

The Most Common Causes and Symptoms of Check Valve Failure

A failing check valve can be a disaster when you’re operating any liquid handling equipment. By understanding why valves fail and how to detect the early warning signs of valve failure

09/22/2020

The development history of single screw machine

1. The history and current situation of single screw compressor 　　 In 1960, France's B. Zimmern proposed the idea of ​​a single screw compressor and obtained a patent. In 1962, the first prototype was trial-produced, and it was officially produced and put on the market by Peugeot in the early 1970s.

08/20/2020

Operation management of wet stroke of refrigeration compressor

The wet stroke of the compressor is caused by the liquid refrigerant entering the cylinder. When the amount of liquid entering is small, frost will form on the outside of the cylinder.