CKD Solenoid Valve 4F330E-10-TP-AC220V

07/05/2020

Hitachi 5P cold storage compressor

Hitachi 5P cold storage compressor Practical knowledge-advantages and disadvantages of the four compressors There are many kinds of compressors, commonly used are scroll compressors, piston compressors, centrifugal compressors, screw compressors, etc.

01/16/2024

Overview of Industrial Fans: Work Principle, Types, Application Areas, Importance and Selection Guide

Industrial fans are fan equipment specially designed for industrial environments, with powerful wind force and stable performance.

08/25/2020

Can the bus and subway have air-conditioning Shanghai expert It can be used normally, and it must be ventilated and clean

On the afternoon of May 8, Wu Huanyu, director and chief physician of the Shanghai Center for Disease Control and Prevention, said that as the temperature gradually rises, the city's commercial buildings, large shopping malls

07/29/2020

What to do if the air-conditioning copper pipe leaks

What should I do if the air-conditioning copper pipe leaks? Why is the air-conditioning copper pipe leaking? Everyone is familiar with copper pipes for air conditioning.

08/07/2020

Knowledge points of HVAC cold and heat source design

1.The design position of the pump in the system: Generally speaking, the chilled water pump should be located at the front end of the chiller, and the chilled water coming back from the end is pumped back to the chiller through the chilled water pump;

07/21/2020

Basic knowledge of refrigeration compressor (technology sharing)

Compressor, a driven fluid machine that promotes low-pressure gas to high-pressure gas. It is the heart of the refrigeration system. It sucks in low-temperature and low-pressure refrigerant gas from the suction pipe, drives the piston to compress it through the operation of the motor, and discharges the high-temperature and high-pressure refrigerant gas to the exhaust pipe to provide power for the refrigeration cycle. Compression → condensation (heat release) → expansion → evaporation (heat absorption) refrigeration cycle.

06/29/2020

How the compressor works

01/15/2021

Operation process of automobile air-conditioning refrigeration system and the role of pressure switch

Operation process of automobile air-conditioning refrigeration system and the role of pressure switch From top to bottom, automobile air conditioners are mainly composed of blowers, evaporators, pressure switches, dryers, expansion valves, condensers, 器2䀀
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08/06/2020

Application and troubleshooting of fan coil and electric valve

As a terminal device of the central air conditioning system, the fan coil unit is widely used in residences, offices, hotels, hospitals and other places because of its compact structure, flexible layout, and easy independent control.

03/03/2021

The key detection items of servo motor and common problems in servo motor detection

1).Servo motor detection -- cogging torque: Cogging torque is an inherent phenomenon of permanent magnet motor, which can make the motor torque fluctuate and produce vibration and noise. We measure the change of motor torque in a rotation cycle on a special test bench and analyze the distribution of cogging torque.