Danfoss Compressor SZ147A6VR

08/20/2020

Failure analysis Is the air conditioner buzzing about to explode

Summer is the peak season for air-conditioning, and the frequency of air-conditioning in the home has increased significantly. After frequent use, some friends say that the air-conditioning in the home is always buzzing.

06/14/2020

Basic knowledge of refrigeration compressors

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12/12/2022

How to Deal with the Abnormal Noises from the Linear Guideways?

The rolling element on the slider of the linear guideway moving back and forth inside the track groove will produce noise, which is a normal phenomenon.

06/29/2020

Compression ratio of American Copeland compressor

09/19/2025

What is the Difference Between Piston and Plunger Pumps

Plunger and piston pumps are very similar in construction and both are reciprocating positive displacement pumps.

09/05/2020

What is the two-stage compression permanent magnet frequency conversion

Domestic sales of energy-saving air compressors are in full swing. Permanent magnet variable frequency air compressors and two-stage compression permanent magnet variable frequency air compressors are representative of energy-saving air compressors and are currently the mainstream products on the scene.

07/19/2020

The principle structure, advantages and disadvantages of scroll refrigeration compressor

Principle: The scroll line pattern of the moving plate and the static plate are the same, but the phase difference is 180°C; they mesh to form a series of closed spaces; the static plate does not move, and the moving plate revolves around the center of the fixed plate with the eccentricity as the radius. When the moving disc revolves, it meshes in sequence, so that the crescent-shaped area is continuously compressed and reduced, so that the gas is continuously compressed and finally discharged from the center hole of the static disc

08/11/2020

How to check the air tightness of refrigeration equipment correctly

The refrigeration equipment is kept under a proper vacuum for a certain period of time. Whether the reading of the vacuum pressure gauge changes to reflect and observe whether the air penetrates into the system to check the sealing performance of the system.

09/03/2020

Application of Siemens 300CPU and Aoyuexin 300PLC in Air Compressor Pneumatic Control System

1 Introduction As the air source equipment of the pneumatic control system, the air compressor's stability and reliability during operation are directly related to production safety. Since most of the early electrical controls were relay circuits,

03/18/2021

Parameter setting method of servo motor driver

The larger the setting value, the higher the gain and the greater the stiffness. Under the same frequency command pulse condition, the position lag will be smaller.