JQAUDIO Transformer LA-2

08/09/2020

Do you know all about refrigerator refrigeration parts

Do you know all about refrigerator refrigeration parts Although these parts and accessories in the air-conditioning refrigeration system are basic components, they are very important and you must find out!

06/14/2020

Relay protection concept and basic requirements

Before introducing relay protection, first introduce several working states of the power system (1) Normal working state It means that all the equality and inequality constraints of the power system are satisfied, indicating that the power system me器2䀀
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07/29/2020

Air conditioning chilled water pump lift estimation method (including examples)

The so-called selection and calculation of water pumps are actually estimates (many calculation formulas themselves are estimates), and more detailed and comprehensive considerations are accurate calculations.

06/29/2020

How the compressor works

08/19/2020

What should I do if the freezer trips

Tripping when the freezer starts is a problem that many users may encounter when using the freezer for the first time. Domestic refrigerators are widely used. Although domestic refrigerators have high performance,

08/09/2020

How to recycle Freon when the air conditioner is moved What should I pay attention to when moving the air conditioner

The price of buying an air conditioner is not low, so many people will definitely remove the air conditioner when moving. When moving the air conditioner, it is necessary to recycle the Freon.

07/25/2020

How to distinguish between original refrigeration compressor and second-hand refrigeration compressor?

At present, illegal businesses on the market often use second-hand or refurbished or offline refrigeration compressors to make industrial chillers in order to make huge profits. They are used in some water-cooled industrial chillers, air-cooled industrial chillers, and screw-type water-cooled industrial chillers.

08/18/2020

Commercial refrigerator industry definition and product classification

Commercial refrigerators are the product of the market economy. With the development and growth of major beverage, ice cream, and quick-frozen food manufacturers, the market scale continues to expand

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.

06/14/2020

A complete list of technical solutions for maintenance of screw refrigeration compressors

A complete list of technical solutions for maintenance of screw refrigeration compressors Screw refrigeration compressor is the core component of the refrigeration system. Whether the unit is running well is directly related to safety and energy consumpt器2䀀
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