SKF Bearing QJ 312 N2MA/C2L

09/10/2020

What factors affect the displacement of centrifugal compressors

1) The air filter is blocked or the resistance increases, causing the suction pressure of the compressor to decrease. When the outlet pressure is constant, the compressor pressure ratio is increased. According to the performance curve of the compressor, when the pressure ratio increases, the displacement will decrease;

08/17/2020

Common failures of scroll chiller compressor

Scroll compressors are mainly used in air-cooled box chillers, water-cooled box chillers, open chillers, low temperature chillers, etc. It is said that the compressor is the heart of the chiller, so how can we operate to avoid the compressor from malfunct碌7館

06/14/2020

Tips for energy saving in refrigeration systems

Tips for energy saving in refrigeration systems Screw refrigeration compressor When setting the cooling capacity of the compressor, avoid the operating range of low energy efficiency ratio; for the refrigeration system with a large range of operating co器2䀀
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03/01/2021

Basic principle and optimization algorithm of BLDC

Brushless direct current motor (BLDCM,) gets rid of the inherent shortcomings of the brushless DC motor, and replaces the mechanical motor rotor with the electronic motor rotor. Therefore, the brushless DC motor not only has the excellent speed characteristics of the DC motor, but also has the advantages of simple structure, no commutation flame, reliable operation and easy maintenance.

08/05/2020

Refrigeration oil replacement points of screw refrigeration compressors for cold storage equipment

1. The role of lubricating oil:<br></br> 　　1) A dynamic seal is formed between the screw and the compression chamber and the male and female screws to reduce the leakage of refrigerant from the high pressure side to the low pressure side during the compression process.<br></br>

05/27/2025

How to Test Your Radiator Fan: A Step-by-Step Guide

A properly functioning radiator fan is crucial for maintaining the optimal temperature of your vehicle's engine.

09/01/2020

Analysis of three states of mechanical lubrication

There are three types of lubrication: full film lubrication, boundary lubrication, and mixed lubrication. They are in three different states, but they all rely on lubricating oil to lubricate and resist wear.

06/29/2020

Suggestions for troubleshooting of compressor with liquid start

09/06/2020

Application of synthetic compressor oil

At present, synthetic lubricants are widely used in the compressor field. Among them, oil-injected and oil-immersed rotary screw air compressors and large reciprocating compressors are one of the most used markets. For example, the sales volume of synthetic compressor oil in Western Europe was 6000t in the late 1980s, and it rose to 10000 in the early 1990s. The sales volume in the United States has exceeded 15,000 tons, and it is increasing at a rate of more than 10% per year.

08/16/2020

How to improve the service life of the regulating valve

The control valve is not like a manual valve. After it is installed, it is rarely managed and maintained. It must be maintained frequently to ensure normal operation and long service life. Below we introduce eight ways to extend the service life of the control valve.