Danfoss Compressor SZ120A4VU

08/20/2020

Refrigerant recovery method of industrial chiller

In the repair or maintenance process of industrial chillers, it is necessary to recover the refrigerant to facilitate subsequent repairs and maintenance.

09/23/2020

Talking about screw compressor

It has become an inevitable trend to use highly reliable screw compressors to replace piston compressors with many wearing parts and poor reliability. Japan's screw compressors accounted for only 27% in 1976, and rose to 85% in 1985; the current market share of screw compressors in western developed countries is about 80%, and it maintains an upward trend.

07/07/2020

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

09/07/2020

Standard summary of threads in the pneumatic industry

Threads are used to deal with machinery every day, especially hydraulic and pneumatic. For a long time, domestic and foreign, metric and imperial, straight cone, sealed and unsealed, inner and outer, 55 degrees and 60 degrees .

07/23/2020

Shallow oil return method of parallel refrigeration compressors

Compressor oil return is one of the key problems in piping design, and it is also a troublesome problem that must be solved; the solubility of refrigerant and lubricating oil should be miscible, slightly soluble, and miscible at high pressure and separate at low pressure. ; The problem of oil return often occurs in the exhaust pipe and return pipe. Today, the analysis is the oil return problem of parallel compressors

08/02/2020

The air conditioner compressor does not start, it may be its problem-capacitor

The main functions of capacitors (capacitors for short) in the electronic circuit of air conditioners are filtering, delay, boosting, energy storage, bypass, decoupling, etc., and can also be used to start the compressor.

04/27/2022

How to Test Your Surge Protection Device?

Surge protection devices protect our electronic equipment from the impact of surge and lightning which will occur without warning at any time.

06/14/2020

After the Mitsubishi air conditioner is turned on, the indoor compressor does not rotate and cannot be cooled

Fault phenomenon: After a Mitsubishi SRC285cENF air conditioner is turned on, the indoor fan operates normally, and the indoor compressor does not rotate and cannot be cooled.

09/07/2020

Three major aspects to improve the energy efficiency of air compressors

As we all know, as a compressed air preparation device, an air compressor consumes a lot of power. In the life cycle cost of an air compressor, energy consumption accounts for up to 75%, which is several times the purchase cost of an air compressor.

08/27/2020

Design and Application of Universal Crank and Connecting Rod Mechanism

First, let me introduce the function of the crank connecting rod mechanism to the internal combustion engine: 1) convert heat energy into mechanical energy; 2) piston reciprocating linear motion becomes crankshaft rotation motion; 3) output continuous power to related transmission devices.