Danfoss Compressor SM148W7PAO

07/08/2020

How to solve the problem of poor oil return of screw chiller

1. What is the cause of the poor oil return of the screw chiller? 　　 Generally speaking, the reason for the poor oil return of the screw chiller is mainly due to the phenomenon of the gas mixture of lubricating oil and refrigerant during the operation. Specifically, in the operation of the refrigeration system, encountering the miscibility of the refrigerant and the refrigerator lubricating oil will cause the lubricant in the refrigeration compressor to run and the refrigerant will be discharged into the condenser in the form of gas mist and droplets.

06/14/2020

Causes and removal methods of frost in cold storage evaporator

The frost formation of the cold storage refrigeration evaporator should be comprehensively analyzed from various aspects. The design of the evaporator, the evaporator spacing between the fins, and the piping arrangement should be optimized as a whole. The器2䀀
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03/23/2022

What is an Expansion Valve?

The expansion valve is an important part of the refrigeration system and is generally installed between the liquid storage tank and the evaporator.

06/25/2020

Displacement compressor classification_Characteristics of displacement compressor

Positive displacement compressors are mainly divided into the following four types: screw compressors, piston compressors, rolling rotor compressors, and scroll compressors.

06/29/2020

How the compressor works

09/15/2020

Adjustment of main machine clearance of twin screw compressor

I repaired a main engine with locked rotor in the early stage. It is an EP200 model produced by Ingersoll Rand in 1997. Before I repaired it, Ingersoll Rand itself could not repair it. Because the main engine was severely deformed and the rotor and cavity Severe body adhesion.

09/07/2020

Year-end overhaul of compressor equipment in tire service industry

Partial maintenance of oil-water separator 　　The main function of the oil-water separator is to adjust the system pressure and ensure system lubrication. Insufficient system pressure will cause the tire changer to work weakly, and lubrication failure will cause damage to the tire changer cylinder or wasted oil injection.

01/16/2021

Refrigeration compressor purchase

Compressor selection is the first step in the establishment of a refrigeration system. Choosing a suitable refrigeration compressor can neither have excess power nor insufficient cooling capacity, which can lead to an increase in power consumption. It mus器2䀀
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06/15/2022

How to Select a HMI?

There are three basic types of HMIs: the pushbutton replacer, the data handler, and the overseer.

08/03/2020

Why do air conditioners, refrigerators, washing machines, etc. use three-wire plugs

Three-wire plug: neutral wire, live wire, ground wire. The ground wire belongs to the type of leakage protection! High-power electrical products are protected by three-phase plugs