Danfoss Compressor SH120A4ABQ

09/22/2020

Thyristor solid medium voltage soft starter

I. Overview In our country's coal mine, petroleum, chemical industry, steel, power generation, water supply, cement building materials and other fields, there are a large number of 3KV, 6KV, 10KV and other voltage levels of medium and high voltage AC asynchronous motors. A large part of them do not require speed regulation, but need to solve the starting problem of these high-voltage large motors.

03/24/2025

PC Airflow Channel Design: the Best Layout of the Case Airflow Channel

The power supply, CPU, chipset, memory, and graphics card in the computer case can generate a lot of heat.

09/08/2020

Advantages and disadvantages of closed motor and open motor of air compressor

Air compressor enclosed motor: Protection grade: IP44, IP54, IP55 　　 Advantages: 　　1) Wide application range. The air compressor driven by a closed motor can be used in places with poor environment. For example, there is a lot of dust and the fibers are flying. Factories and mining industries with corrosive gas and other surrounding areas.

01/08/2021

In the field of air conditioning, the Guinness Book of Records for the longest life air conditioner-Mitsubishi Electric Air Conditioner

In the field of air conditioning, the Guinness Book of Records for the longest life air conditioner-Mitsubishi Electric Air Conditioner The World Guinness Book of Records inspires everyone, whether it is an individual, family, school, team, company, or器2䀀
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09/07/2020

Eight advantages of air compressor waste heat recovery device

During the operation of the air compressor, about 80% of the input electric energy will become heat, and the remaining 20% ​​will eventually become compressed air energy. After the electric energy consumed by the compressor is converted into heat in the working process, most of it is taken away by the compressed special mixture

05/07/2022

Working Principle of 5 Kinds of Solenoid Valves?

When the power is on, the electromagnetic coil generates electromagnetic force to lift the closing part from the valve seat and open the valve

07/07/2020

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

08/06/2020

Installation steps and precautions of valves in industrial chiller refrigeration systems

With the large-scale promotion of "Coal to Electricity" and "Coal to Clean Energy" projects, the use of air source heat pumps for independent domestic heating has become one of the leading energy-saving, comfortable, clean and stable ways.

08/17/2020

Analysis of 4 major reasons for the high energy consumption of building HVAC systems

1. Analysis of the high energy consumption of the building HVAC system 　　 The reasons for the high energy consumption of building HVAC systems are mainly reflected in the following aspects:

06/14/2020

Central air-conditioning unit classification

Central air-conditioning unit classification The central air conditioning unit is the core part of the central air conditioning system. Reasonable selection of units is very important for a central air-conditioning project. Regarding the cooling mode and器2䀀
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