CIKACHI Switch PB-221A

01/04/2021

Noise control of a two-stage screw refrigeration compressor

Noise control of a two-stage screw refrigeration compressor From a Department of Compressor Engineering, School of Energy and Power Engineering, Xi’an Jiaotong University, 710049 Shaanxi, China b Suzhou Academy, Xi’an Jiaotong University, 215123 Jiang器2䀀
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01/06/2021

Precautions when using the fresh air system

Precautions when using the fresh air system The fresh air system introduces outdoor air through the fan, and then deeply purifies the pollutants in the outdoor air by the fuselage filter and sends it to the room. After the clean air enters the room, th器2䀀
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07/05/2020

Hitachi 6HP Inverter Compressor-Compressor

Hitachi 6HP Inverter Compressor-Compressor Why is frost formed between the electronic expansion valve and the compressor? A customer asked: The compressor is suddenly not cooling, and the electronic expansion valve is frosted to the compressor. Is there any relationship between the two before?

08/16/2020

What are the reasons for the shortened life of cold storage projects

With the progress of society and the development of all walks of life, the installation of large and small cold storage has gradually risen and spread quickly across the country.

07/31/2020

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

Condensing pressure is the pressure at which the refrigerant condenses into liquid in the condenser. Since the pressure inside the condenser in the refrigeration system cannot be measured, in fact, the pressure drop of the refrigerant in the exhaust pipe and the condenser is actually very small.

01/13/2023

What is a 3/2 Solenoid Valve?

A solenoid valve is an electro-mechanical valve that is commonly employed to control the flow of liquid or gas.

08/26/2020

Basic knowledge of screw compressor lubricants and troubleshooting

There are many reasons for the high temperature of the screw compressor. This article only solves the failure of the lubrication system, provides basic knowledge of lubricating oil and cleaning methods, in order to extend the service life of the screw comŸﰨ2䀀

09/10/2020

Analysis on How to Protect Technology Property Rights in Hardware and Electrical Industry

At present, the German court has pronounced that Apple has infringed on Motorola’s two patented wireless communications technologies and prohibited the sale of products using these two technologies in Germany.

03/04/2023

Test and Diagnosis of Cylinder Sealing

Cylinder sealing is guaranteed by engine piston group, valve and valve seat, cylinder head, cylinder block, cylinder gasket and other parts.

06/29/2020

What is the cause of compressor pipeline vibration