Emerson Nidec Frequency Converter VFD SK3507

06/29/2020

Several causes of compressor burning

06/14/2020

Double Flow Integrally Geared Compressor (DF-IGC)

DF-IGC have Large flow with Compact body Innovative Double Flow Arrangement

06/14/2020

20 core components of refrigeration and air conditioning

1. Compressor It is the core of the entire air conditioning system and the source of system power. The power of the entire air conditioner is provided by the compressor. Compressors According to the compression method, positive displacement compressors器2䀀
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09/07/2020

Principle and function of temperature control valve of screw air compressor

Each component of the screw air compressor has its unique and important role, such as air filter, oil filter, safety valve, temperature control valve, one-way valve, etc. If one of them is missing, the screw air compressor will not function properly.

09/11/2020

What are the tips for using screw air compressors

The set unloading pressure of the air compressor pressure regulator is adjusted with the upper adjusting bolt. Turn the bolt clockwise to increase the unloading pressure, and rotate it counterclockwise to reduce the unloading pressure. The differential pressure value is adjusted by the differential knob at the bottom. Turn it counterclockwise, the pressure differential value of the air compressor decreases, and clockwise

08/16/2020

Air-conditioning peak season is approaching, be wary of free return and exchange mystery

Behind the high purchase rate of air conditioners, there is also the risk of high after-sales problems. Recently, a friend close to the editor bought an air conditioner of a certain brand, but he couldn't use it normally and had to return the product after repeated repairs failed.

08/19/2020

How to choose refrigerant for different types of industrial chillers

We all know that the working temperature of medium and high temperature chillers can be controlled between 3°C and 35°C, low temperature chillers can also be controlled between 0°C and -60°C,

01/05/2021

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Compressor: Of the reciprocating, rotary, and centrifugal compressors, the most popular among domestic or smaller power commercial refrigeration is the reciprocating. The reciprocating compressor is similar to an automobile engine. A piston is driven by a器2䀀
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08/20/2020

Daily maintenance and performance characteristics of air-cooled chillers

Although the air-cooled chiller is equipped with multiple protection devices, these are all to prevent failures from directly damaging the unit. If the company wants to ensure that the air-cooled chiller has high cooling efficiency and long service life,

03/01/2021

The main difference between brushless DC motor and DC servo motor

Different definitions: (1) Brushless DC motor is a typical mechatronics product, which is composed of motor body and driver. Brushless motor refers to the motor without brush and commutator (or collector ring), also known as commutator less motor. As early as the 19th century, when the motor was born, the practical motor was the brushless form, that is, the AC squirrel cage asynchronous motor, which has been widely used. However, the asynchronous motor has many insurmountable defects, so that the development of motor technology is slow. The transistor was born in the middle of last century, so the brushless DC motor using transistor commutation circuit instead of brush and commutator came into being. This new type of brushless motor is called electronic commutation DC motor, which overcomes the defects of the first generation of brushless motor.