NTN Bearing 22220

01/05/2023

Tips for Solenoid Coil Winding

The solenoid coil is a device that uses the principle of electromagnetic induction to work. When a current flows through a wire, a certain electromagnetic field is generated around the wire. It is regularly wound.

07/07/2020

Earth Hour: Hitachi Central Air Conditioner works with you to speak for the earth

08/07/2020

Air conditioning system tuyere arrangement spacing

Air conditioning system tuyere arrangement spacing<br></br> Fan coil plus fresh air air conditioning system<br></br> 　　1) Arrangement of fan coil units: When there are requirements for the number of units, arrange them as required. When there is no requiŒﰨ2䀀湠疌VǜV
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09/09/2020

Summary of knowledge points of screw air compressor

Classification of screw air compressor 　　 Screw compressors are also called screw compressors, which are divided into single screw compressors and twin screw compressors. The single screw compressor was developed by Sinn, France in the 1970s.

08/20/2020

Matters needing attention during installation of clean air duct and equipment

Attention should be paid to the installation of air ducts and equipment of clean air conditioning systems:

09/02/2020

The working principle of air compressor

The working principle of air compressor<br></br> working principle<br></br> 　　 (1) Piston air compressor<br></br>

08/18/2020

How to solve the low cooling efficiency of low-temperature chillers

When the low-temperature chiller has a poor cooling effect, it means that the equipment is in high-efficiency operation, but there are very few cold sources, which cannot meet the actual needs of the company for a low-temperature environment.

08/07/2020

Requirements for industrial refrigeration units before operation

Refrigeration units are used in many industries. For example, semi-hermetic refrigeration compressors are used by many manufacturers.

05/15/2023

How to Replace AC Compressor (9 Detailed Steps + Diagrams)

The compressor is the main part of the air conditioner. Once it is broken or cannot be used, the air conditioner is equivalent to a waste, and can not cool. What should we do?

11/04/2022

6 Common Electric Motor Failures and Solutions

Electric motors are widely applied in production, transmission, and distribution. But failures could occur due to wrong operation, insufficient maintenance, etc