COTO Relay 9290-05-20

05/31/2024

Solenoid Valve Types: the Most Complete Guide

The solenoid valve is one of the common valves in industrial control systems. It can control the opening and closing of the valve through electromagnetic force, thereby achieving control of the gas and liquid lines.

08/19/2020

Use and principle of inverter air conditioner and ordinary air conditioner

Inverter air conditioners are based on ordinary air conditioners with special inverter compressors, and an inverter control system is added. Its basic structure and cooling principle are exactly the same as ordinary air conditioners.

06/14/2020

Air Conditioner Using Labor to Welcome Labor Day

Air Conditioner Using Labor to Welcome Labor Day Climb to the cooling tower on the top floor, wash the cold plates and litter with a brush and high-pressure water gun, wash the pipes, filter cover, filter, surface cooler in order to sterilize and kill alﰸ2䀀
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06/14/2020

An accident analysis of refrigeration compressor

An accident analysis of refrigeration compressor A major refrigerator damage accident occurred in the refrigeration workshop of a meat joint processing plant. The refrigeration workshop of the factory was equipped with 2 single-stage two-stage ammonia re器2䀀
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06/14/2020

Solar driven adsorption refrigeration

Solar driven adsorption refrigeration Shanghai Jiaotong University Wang Ruzhu and other nearly 20 years of painstaking research "adsorption refrigeration adsorption mechanism, cycle construction and thermal design theory" won the second prize of the 2014ﰸ2䀀
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06/14/2020

Single screw compressor

Single screw compressor

08/13/2020

How to replace the lubricating oil and filter drier of the chiller

After the chiller is used for a long time, the lubricating oil will inevitably be contaminated or acidified. Therefore, we must pay attention to the change of oil quality during the operation of the unit.

07/07/2020

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

08/24/2020

What are the profits behind the cold storage Why do so many people choose to build cold storage

Nowadays, the weather has gradually become hot. Everyone turns on the air conditioner to cool down indoors. It is not only humans who need to cool down, but also fruits, vegetables, ice cream, poultry, medicine,

08/21/2020

What are the advantages of using economizers for screw chillers

1. What is an economizer Economizers are often used in secondary air screw compressor refrigeration systems. Under working conditions with relatively low evaporation temperatures (below -25°C), the efficiency of ordinary single-stage screw compressors decreases,