Danfoss Compressor SH865A9ABQ

06/17/2025

How to Make a Fan Blow Cold Air?

In summer, in some specific places, or some economically constrained families, people have no air conditioning but only fans. When it’s especially hot, some people find that the fan wind gets hotter and hotter, which can't cool at all.

06/29/2020

Compression ratio of American Copeland compressor

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.

06/23/2020

What refrigerator is used for cooling

Most of them use fluorine-free refrigerants, and the models include R600A, R410A, R407A, R134A, etc., which are all green and environmentally friendly. The specific models are marked on the nameplate on the rear side of the refrigerator. the way.

08/03/2020

How to improve the energy efficiency of chilled water air conditioning systems in data centers

Frozen water-type air conditioning systems have long been a mature application in data centers, but many users are still conservative in their applications.

06/22/2020

Causes and judgement of centrifugal compressor surge

Causes and judgement of centrifugal compressor surge Causes of centrifugal compressor surge ①Flow<img src="{{media url=&quot;Causes_and_judgement_of_centrifugal_compressor_surge.jpg&quot;}}" alt="" /> Each centrifugal compressor corresponds to a curve between outlet pressure P and flow rate Q at different speeds n, as shown in Figure 2.

06/22/2020

What is the refrigeration compressor

With the improvement of people's living standards, refrigerator air conditioners believe that everyone is no stranger, they have become a necessity of our family life. But what about refrigeration compressors, how much do you know about it? In fact, refrigeration compressors are widely used in refrigerators, air conditioners and other mechanical equipment. If the refrigeration system is compared to the human body system, the refrigeration compressor is one of the most important components in the refrigeration system, and is the core and heart of the vapor refrigeration system. It sucks the low-temperature and low-pressure refrigerant gas from the suction pipe, and drives the piston to compress it through the operation of the motor, thereby realizing the refrigeration cycle. Next, I will introduce to you what are the precautions for refrigeration compressors and refrigeration compressor maintenance. <img src="{{media url=&quot;magefan_blog/What_is_the_refrigeration_compressor.jpg&quot;}}" alt="" />

08/24/2020

What are the failures of the air conditioning refrigeration system (R410A)

1. Poor cooling effect When it is assumed that the system is blocked by welding, first check whether the system pressure and current are normal. You can use a pressure gauge to measure the suction pressure.

08/20/2020

How much power does the air conditioner save most

With the advent of the dog days, T-shirts and long skirts have been unable to meet people's needs for cooling off, so various cooling measures have been taken. Air conditioners are naturally the first choice to cool off the heat.

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.