ALCO Switch ALCOPS3-A5S

06/14/2020

Types and selection criteria of control valves for refrigeration equipment

The first thing to know is what is a control valve? A control valve, also known as a control valve, is mainly used in the field of industrial automation process control. Its function is to change the flow, pressure, temperature, etc. of the medium. The apﰸ2䀀
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08/26/2020

The development history of scroll refrigeration compressors

1. In 1905, Frenchman Leon Creux proposed the working principle of scroll machinery and applied for a US patent.

08/19/2020

The lower the cold storage temperature, the better is a misunderstanding

Most professional refrigeration professionals believe that the lower the temperature the cold storage is built, the better, and the shelf life of ice storage can be extended. Experts say this is actually a misunderstanding

07/07/2020

Earth Hour: Hitachi Central Air Conditioner works with you to speak for the earth

08/19/2020

Change air conditioner technician in one second

Air conditioning is an indispensable tool for preventing heat at home, and whether it is cold winter or scorching heat, the air conditioner always keeps the room temperature comfortable and pleasant

07/21/2020

Analysis of the application advantages and disadvantages of the five major refrigeration compressors

At present, semi-hermetic piston compressors are mostly used in the cold storage and freezing and refrigeration markets (commercial refrigeration and air conditioning are also useful, but they are relatively less used now). The semi-enclosed piston cold storage compressor is generally driven by a four-pole motor, and its rated power is generally between 60-600KW. The number of cylinders is 2-8, up to 12.

06/23/2020

What is the reason why the freezer is not cooling

It may be that the capillary is blocked and the refrigerant flow does not enter the evaporator. It may also be that the refrigerant needs to be replenished or the refrigeration system is leaking. If the buffer tube inside the compressor ruptures, there may be loose screws or it will cause no cooling. It is also possible that the expansion valve and the discharge valve are not adjusted properly, causing cold air to leak out. Need to check one by one, and then take the medicine.

06/14/2020

The difference between air compressor and refrigeration compressor

The air compressor is the same as the refrigeration compressor in that it is the same compressor, the difference is that its working principle and working medium are different.

05/27/2022

Level of Safety Light Curtain?

In modern chemical plants, people work together with mechanical equipment. Mechanical equipment is becoming more and more automatic, and workers are more and more likely to be hurt.

04/14/2023

15 Refrigeration System Components Structure, Function, Working Principle Diagram (2)

This article continues to introduce the function and working principle of other related components of the refrigeration system, including pressure controllers, oil separators, filter driers, etc.