NB Nippon Bearing Linear Guideway SER20AUU1-220

07/27/2020

Cause analysis of common failures of compressors with heat transfer oil heating system

Cause analysis of common failures of compressors with heat transfer oil heating system<br></br>

06/14/2020

Hematemesis! Detailed explanation of the most comprehensive knowledge of relay protection

Hematemesis! Detailed explanation of the most comprehensive knowledge of relay protection When the power components in the power system (such as generators, lines, etc.) or the power system itself fails and endangers the safe operation of the power syste器2䀀
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05/09/2025

Air Conditioner Compressor: How It Works, Functions, Troubleshooting＆Maintenance

The air conditioner mainly relies on the work of the air conditioner compressor (AC compressor) to achieve the cooling cycle.

08/02/2020

New refrigerant R450A is used for performance study of ejector refrigeration cycle

The new refrigerant R450A is a substitute for R134a, which is environmentally friendly and reliable. There are still few studies on it.

08/03/2020

7 practical heat exchanger technical questions

Answer: In the most common partition type heat exchanger, there are mainly two heat transfer methods: conduction and convection.

07/07/2020

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

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.

08/24/2020

Beware of invisible pollution in air conditioning in summer

"My God, I can't believe that the air conditioner that is blown every day is so dirty." Mr. Huang, who lives in Jiqingmen, said in surprise after opening the air conditioner.

08/04/2020

This button on the remote control of the air conditioner is not used. Here is the secret of power saving →

Summer is here, and many families have begun to use air conditioners, but while enjoying the coolness, the rising electricity bills are also painful. I will teach you some power saving methods right away

06/14/2020

Frequently asked questions about refrigeration compressors Do you know these?

1. Why control the impurity content and moisture content of the compressor and air conditioning system?