Danfoss Compressor DSH105A3AAP

07/29/2020

Refrigerant filling

After the leak test of the refrigeration system is completed, it should be filled with refrigerant. However, the Freon refrigeration system must be vacuum dried before being filled with refrigerant. When the drying is not complete, the refrigerant cannot be filled.

03/06/2023

Types of Cylinder Seals and Factors Affecting Sealing Performance

Cylinder sealing is an important parameter to characterize the technical condition of engine. Cylinder sealing is related to the technical condition of cylinder block, cylinder head, cylinder gasket, piston, piston ring, inlet and exhaust valves and other parts.

08/24/2020

Apply these 5 parameters to easily determine whether the refrigeration and air-conditioning system is operating normally!

1. Condensing temperature Condensing pressure is the pressure at which the refrigerant condenses into liquid in the condenser. Because the pressure inside the condenser in the refrigeration system cannot be measured,

09/04/2020

Eight core issues warn compressor companies, and the rapid changes in the market cannot be ignored

When we find that the hot companies a few years ago have become traditional enterprises, you will understand how fast we are in an era of change! Most compressor companies now have a very serious sense of crisis-dealers are difficult to manage

09/21/2020

GQYF-2A type air compressor comprehensive protection device

The six-channel temperature of the compressor is over-temperature, oil-cut, water-cut, and over-air pressure. Coal safety regulations have clearly required that the pressure fan equipment must be installed:

06/29/2020

How the compressor works

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.

08/09/2020

Regulations for the adoption of heat recovery chillers in refrigeration stations

1. For buildings that require both cooling and heating, heat recovery chillers can be selected when the technical and economic analysis is reasonable. By recovering the heat lost by the cooling water, the unit is used for air conditioning hot water or hot air preheating,

07/18/2020

Working condition and adjustment of refrigeration system of low temperature chiller

Working condition and adjustment of refrigeration system of low temperature chiller Refrigerators are now widely used in the refrigeration industry, and the refrigerant is usually R22 (also R404a). In order to facilitate operation and maintenance and reduce the installation location, the refrigeration compressor, oil separator, water-cooled shell and tube condenser, filter drier

09/03/2020

Preventive maintenance of compressor equipment

Compressor as a mechanical equipment, after a period of operation, due to wear, deformation, corrosion, blockage and other reasons to produce failures or failure precursors, so it is normal and necessary to repair.