Y.S.TECH Fan FD121238MB

06/14/2020

Analysis of common problems in the process of suction and discharge of refrigeration compressors

Analysis of common problems in the process of suction and discharge of refrigeration compressors Refrigeration compressor is the core and heart part of the refrigeration system, and is widely used in the industrial refrigeration field such as medicine an器2䀀
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06/14/2020

Thermal expansion valve

Thermal expansion valve Thermal expansion valves are commonly used in Freon refrigeration systems. Through the function of the temperature sensing mechanism, they automatically change with the temperature change of the refrigerant at the outlet of the ev器2䀀
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07/16/2020

Vacuum leak test method for small cold storage equipment

Refrigeration systems with evaporating pressure gauges close to or below atmospheric pressure must be tested for vacuum leak tests, leaving the refrigeration equipment under proper vacuum for a certain period of time, reflecting and observing whether air has penetrated into the system from the reading of the vacuum pressure gauge for inspection The sealing performance of the cold storage equipment system.

07/27/2020

Can air conditioning fans replace air conditioners How is the cooling effect of the air conditioning fan

Abstract] Although air conditioning fans and air conditioners look a bit similar, and they can also cool, there are still some differences between air conditioners and air conditioners.

06/29/2020

How the compressor works

09/07/2020

The working principle of the frequency converter

The main circuit is the power conversion part that provides the voltage and frequency power supply for the asynchronous motor. The main circuit of the frequency converter can be roughly divided into two categories:

08/11/2020

What will happen if the thermal expansion valve is configured too large

A 10P air-conditioning unit is equipped with a 12-ton (1 cooling ton=3.517KW) expansion valve. What will happen?<br></br> 　　 If you follow the DANFOSS selection software, this configuration will not be recommended (all think this type of selection is too large)<br></br>

06/14/2020

Working principle of screw compressor

Working principle of screw compressor The screw compressor cylinder is equipped with a pair of interlocking helical male and female rotors. Both rotors have several concave teeth, and the two rotate in opposite directions.

07/05/2020

Hitachi water source heat pump compressor

How does the air conditioning compressor work? The air-conditioning compressor is also called a rotary (rotor) compressor, and its working principle is to rely on an eccentric rotor under the action of spring force, the compressor, and the eccentric rotor are always in contact with the container separated by the sliding container Changes to achieve a process of compression. When the eccentric rotor rotates, the volume of the container changes and the gas is compressed.

03/28/2025

Comparison of advantages and disadvantages of dry evaporator and flooded evaporator

The refrigerant of the dry expansion evaporator evaporates in the tube. The superheat at the outlet end of the evaporator is usually about 5 to 10K. The expansion valve uses the superheat detected by the temperature sensor to adjust the refrigerant flow r碌7館2䀀締眪湠眷V