Danfoss Compressor SM100T9PBO

06/30/2020

Excessive head resistance will cause compressor to trip

Excessive head resistance will cause compressor to trip The existence of compressor failure does not seem to have much to do with the brand. In other words, whether it is a Hitachi compressor, a Copeland compressor, or another brand of compressor, as long as it is used for a long time, there will be some problems of failure. . Compressor tripping is a common fault. When this failure usually occurs, we should comprehensively look for the cause of the failure.

08/26/2020

The development history of scroll refrigeration compressors

1. In 1905, Frenchman Leon Creux proposed the working principle of scroll machinery and applied for a US patent.

07/14/2020

Requirements for the use of freezing oil

Requirements for the use of freezing oil Due to the different use occasions and refrigerants, the choice of refrigeration oil for refrigeration equipment is also different. The requirements for freezing oil< are as follows: 1. Freezing point: The temperature at which the freezing oil is cooled to stop flowing under the experimental conditions is called the freezing point. The freezing point of the refrigeration oil used in refrigeration equipment should be as low as possible (such as R22 compressors

07/05/2020

Hitachi 2p cold storage compressor

How does the electronic expansion valve reduce the energy loss of the compressor during start and stop? When the compressor is stopped, the electronic expansion valve can completely close the valve to prevent the refrigerant from flowing from the condenser to the evaporator

08/11/2020

What role does the air conditioning and refrigeration cabinet in the computer room play

What role does the computer room air-conditioning and refrigeration cabinet play? The hot aisle/cold aisle cabinet layout method is adopted by modern data centers and is also recognized as the best layout method for data centers.

08/07/2020

Air source heat pump heating in winter

The air source heat pump is used as the cold and heat source of the central air conditioner. Its advantage is that one machine is used for two purposes. At least one four-way reversing valve is added inside the unit,

06/14/2020

Do you know several common refrigeration compressors

Among various types of refrigeration compressors, piston compressors are the earliest and still have more models. For example, semi-hermetic piston refrigeration compressors are widely used in refrigeration and refrigeration equipment. Common manufacturer器2䀀
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08/05/2020

Simple estimation and measurement of indoor and outdoor wind pressure difference in fresh air system

At present, most of the fresh air systems we use follow the design philosophy of large air volume and slight positive pressure, but many people are also confused about this. How to detect the pressure in the room on site?

06/25/2020

Basic knowledge of air energy

At present, the most commonly used vapor compression heat pumps, compressors, evaporators, condensers, and throttle valves are the four main components. Other auxiliary components include fans, four-way valves, liquid storage tanks, gas-liquid separators, copper pipes, and Protectors and electronic control parts used to ensure the normal operation of the machine, etc. Direct-heating models also include a water flow regulating valve. Schematic diagram of commercial air source heat pump system

06/29/2020

Suggestions for troubleshooting of compressor with liquid start