Ding Zing Oil Seal UN22*30*5

06/14/2020

What are the causes of frost in refrigeration compressors

1. The opening of the thermal expansion valve is too large, or the installation of the temperature sensor is incorrect and the fixing is not firm or loose. The main reason is that the temperature sensor may feel the temperature too high in this case, resu器2䀀
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08/20/2020

Selection, installation and inspection of solenoid valves in cold storage

When selecting, the solenoid valve diameter of the same size as the pipeline should be configured according to the size of the cold storage refrigeration equipment pipeline.

06/21/2020

Structure of rotary piston compressor_Characteristics of rotary piston compressor

Structure of rotary piston compressor_Characteristics of rotary piston compressor <img src="{{media url=&quot;Structure_of_rotary_piston_compressor_Characteristics_of_rotary_piston_compressor.jpg&quot;}}" alt="" />Structure of rotary piston compressor 　　 Rotary piston compressor, also known as rolling rotor compressor, is mainly composed of 3 parts: casing, motor assembly and compressor assembly. Since there is no reciprocating part, the space volume can be reduced, making the whole structure compact and light.

09/14/2020

Troubleshooting of high pressure air compressor

1-0.27/150 Type High Pressure Air Compressor Troubleshooting Method Fault Features Sound in the crankcase Possible cause a. The screw and nut of the connecting rod are loose. Whether the big-end bearing of the connecting rod is loose.

08/29/2020

Is the temperature difference between the inlet and outlet of the cold dryer the bigger the better

Since the refrigeration dryer removes water by cooling the compressed air, many users think that the lower the outlet air temperature of the refrigeration dryer, the better,

10/15/2022

Servo Motors: Construction, Types, Advantages ＆ Applications

1. Motor—a component that converts electrical energy into rotational mechanical energy.

08/16/2020

How to effectively repair screw wear of screw refrigeration compressor

If you want to solve the problem effectively and quickly, you should first find out the cause of the problem, then let's first look at the cause of screw wear in the screw refrigeration compressor.

07/07/2020

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

02/04/2023

Sectional view of two types of worm gear reducers.

The worm gear reducer, also known as worm gear speed reducer, is a power transmission mechanism. It reduces the number of revolutions of the motor to the required number and obtains a large torque.

08/14/2020

8 tips for design and installation of cold storage aluminum row evaporator

The use of aluminum row evaporators in cold storage is very common. Today, I will introduce eight techniques for installation and design of cold storage aluminum rows. The details are as follows: