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08/12/2020

Causes and troubleshooting of refrigeration solenoid valve failure

The refrigeration solenoid valve is an industrial equipment controlled by electromagnetic, used in the industrial control system to adjust the direction, flow, speed and other parameters of the medium.

08/21/2020

Selection method of refrigeration host

The chillers used in the ice storage system need to adapt to the air conditioning and ice storage conditions, so they are often called dual-condition chillers. The available types are piston chillers,

08/02/2020

Why do some compressors have to soft start

We know that the motor's direct starting current is 4 to 7 times the rated current, so if the power of the motor is relatively small, then the impact on the grid is not great, we allow it to start directly, generally the motor power is allowed below 7.5KM Started directly

08/14/2020

Maintenance method of ultra-low temperature chiller refrigeration system

An ultra-low temperature chiller refers to a refrigeration unit whose chilled water temperature reaches below minus 35°C. The unit adopts two-stage compression refrigeration.

09/30/2025

The difference between fixed speed, frequency conversion, DC frequency conversion, AC frequency conversion, digital scroll air conditioner

The difference between fixed speed, frequency conversion, DC frequency conversion, AC frequency conversion, digital scroll air conditioner The fixed speed air conditioner means that the speed of the internal compressor motor is constant and the temperaturŒﰨ2䀀湠疌VǜV
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09/03/2020

Energy efficiency rating is not the primary condition, it is more economical for air compressors to do so!

This article tries to discuss how to improve the operating efficiency of air compressors, reduce production costs, and help customers improve economic benefits. 　　Improve the operating efficiency of the air compressor

08/03/2020

New type of solar equipment can be heated and cooled

A recent study by Chinese and American scientists published in the American "Joule" magazine shows that they have developed a new type of equipment that can use the principle of radiant cooling while heating by solar energy. Installing such equipment on the roof helps to save energy.

06/23/2020

Make home life easy for a summer

Refrigerators, I believe that every household has its figure, which guarantees the freshness of the food and brings a hint of coolness on the hot summer day. The core component of the refrigerator is the compressor. How does the refrigerator compressor work? Today, let's take a look at the relevant introduction of refrigerator compressor!

08/16/2020

Ways to improve the service life of control valves

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.

07/07/2020

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