Danfoss Compressor SM185T3AR

07/17/2020

Piston compressor use and maintenance technology

Preparation before start-up: Operation, repair and maintenance must be carried out by self-made people. The compressor should be unsealed and cleaned before use, and check whether there is rust on each friction surface. The rust phenomenon should be cleaned with oilstone grinding and clean, and the friction surface should be coated with lubricating oil after unsealing.

09/14/2020

Common troubleshooting methods for twin screw compressors

Common troubleshooting of twin screw compressor 1. Trouble phenomenon The exhaust temperature of the unit is high (over 100 degrees) The coolant level of the unit is too low (should be visible in the oil glass but not more than half) Dirty oil cooler

06/14/2020

Pharmaceutical freeze dryer composition system introduction

The air spring shock absorber is the vibration isolator with the highest vibration isolation efficiency at this stage, which is better than the yellow elastic and vulcanized rubber. The air spring shock absorber is composed of a brake air chamber, a vulca器2䀀
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06/14/2020

Danfoss cocuses on providing energy efficient, sustainable and smart refrigeration compressors for a varied range of commercial applications such as cold rooms

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.

07/04/2020

Compressor operation in the heart of the refrigeration system in 2020

Compressor operation in the heart of the refrigeration system in 2020 A compressor is a fluid machine that raises low-pressure gas to high-pressure gas. It sucks 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 high-temperature and high-pressure refrigerant gas to the exhaust pipe to provide power for the refrigeration cycle, thereby achieving compression-condensation (heat release) )-Expansion-evaporation (heat absorption) refrigeration cycle.

07/12/2020

What semi-hermetic screw compressors are customers willing to pay for?

In the early years, many people felt that semi-hermetic screw compressors are expensive and have high technical threshold. Without semi-hermetic piston compressors, they are cheap and easy to use and maintain, so they are a bit daunted.

06/14/2020

Common faults and troubleshooting methods of refrigeration compressors

The compressor is the "heart" of the refrigeration system. The compressor sucks low-temperature and low-pressure refrigerant gas from the suction pipe, drives the piston to compress it through the operation of the motor, and then discharges the high-tempe器2䀀
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08/20/2020

No kidding, which three leaks of air conditioning in summer will kill you

Summer is the peak time for the purchase of air conditioners. In addition to buying the right air conditioner, the installation of the air conditioner, from the author's point of view, requires more effort than the product itself.

09/06/2020

Design steps of two-wire AC current transmitter

Known high-current current transformers convert different currents into 0~5A alternating current for on-site display. For long-distance transmission, the current must be converted into a standard DC current signal of 4-20mA before transmission.