Danfoss Compressor SM124A7VI

07/27/2022

Classification of Vane Pumps

During a rotation cycle, the volume between adjacent vanes changes because of the rotor’s eccentric mounting position. This creates the pumping action.

07/23/2020

The damage of air-conditioning refrigeration compressor and its preventive measures

An 82000DWT bulk carrier of a shipping company broke down on the 7th day after leaving the factory. The crew described that when it started, the air-conditioning refrigeration compressor could not run continuously, and a large current occurred and an alarm was triggered.

07/30/2020

Beware of "air conditioning disease" in summer, experts advise not to "greedy cold"

Recently, the high temperature outdoors in Haikou continues. To avoid the heat, many people like to stay in the air-conditioned room for one day. Some people even enter the air-conditioned room immediately after being caught off guard by a thunderstorm, causing cough, headache, runny nose

07/23/2020

Analysis of common failure causes of hermetic refrigeration compressors

1. How to identify the 3 terminals on the casing of a hermetic compressor?<br></br> The resistance between running terminal (R), starting terminal (S), common terminal (C), RS is greater than the resistance between SC and RC. The resistance between RS is equal to the resistance between SC and the resistance between RC.<br></br>

08/23/2022

Ways to Increase Stepper Motor Torque and Select Stepper Motor

Reduce the number of turns to reduce inductance L: select the motor with small inductance L from the standard products of the motor manufacturers, the rated current will increase.

08/03/2020

How to supplement and discharge refrigerant in cold storage refrigeration system

The cold storage refrigeration system must ensure that the refrigerant is dry when adding refrigerant (only applicable to fluorine refrigerant refrigeration systems),

06/29/2020

Compression ratio of American Copeland compressor

06/14/2020

How to solve the problems encountered during the operation of 120KW cold air-cooled compressor

The 120KW cold capacity air-cooled compressor mainly has three related systems: refrigerant circulation system, water circulation system and automatic electrical control system.

06/14/2020

[Maintenance case] BMW 520Li compressor clutch failure

[Maintenance case] BMW 520Li compressor clutch failure Model: F18. Driving mileage: 3000km. Fault phenomenon: The user reports that the vehicle's air conditioning system is faulty. Sometimes, the cooling effect of the air conditioner suddenly fails器2䀀
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04/29/2024

Difference between Servo Drive and Stepper Driver

This article mainly introduces stepper motor drivers and servo motor drives, and focuses on a detailed comparison between them.