Hitachi Compressor 300AH-47C2

07/29/2020

Briefly talk about scroll, screw, piston, centrifugal refrigeration compressor Piston refrigeration compressor

Piston refrigeration compressor<br></br> Piston type (ie, reciprocating) refrigeration compressors are widely used, but the displacement is not large. Generally, they are small and medium-sized compressors. The cooling capacity of general air-conditioning conditions is less than 300kW.

01/06/2025

What is the principle of the chiller shell and tube evaporator

The cold water shell and tube evaporator is made by expanding two-layer metal plates with high-pressure gas or by mechanical pressing. It can also be made of aluminum alloy die-casting.

06/29/2020

Suggestions for troubleshooting of compressor with liquid start

09/08/2020

The characteristics of the main shaft of the frequency conversion screw air compressor

The main core of the equipment operation of the rod host during the operation of the variable frequency screw air compressor. Without the rod host equipment, the equipment cannot operate normally. The following is an explanation of the characteristics of the rod host used in the air compressor equipment:

09/05/2020

These safety knowledge must be mastered by front-line employees!

How to quickly identify hazards and cultivate good operating behaviors is the focus of frontline employee safety management!

07/31/2020

Principle analysis of monitoring system for cold and heat source equipment

The building automation system is an integrated system platform, in which many subsystems have diverse functions and complex engineering. What is the principle of the cold and heat source equipment monitoring system as one of the many subsystems of the building automation system?

01/03/2021

Danfoss Compressors-true or false

Spotting a fake Danfoss compressor is possible. Look at the logo, label (font, codes, and number) and shell color or contact Danfoss. Shell color: all the Danfoss reciprocating compressors have a unique blue color while repaired/fake compressors are 器2䀀
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05/05/2025

What are the Signs of a Bad Refrigerator Compressor?

The compressor is the soul of the whole refrigerator. If the compressor of the refrigerator is faulty, it will lead to the abnormal operation of the refrigerator and affect the cooling effect.

09/09/2020

How to provide air source for air compressor

　Is the air compressor better for centralized air supply or more energy-saving for point-by-point air supply; for equipment with small air consumption and low pressure, it may be economical to install a pressure reducing valve to work.

08/18/2020

Central air-conditioning chiller water system and ventilation system cleaning method

The central air-conditioning ventilation system mainly includes air ducts, fresh air ducts, central air-conditioning wind cabinets, air supply openings, air sealing openings, air handling units, fan coils, etc.