NTN Bearing B697-LLU

07/22/2020

Carrier screw compressor motor repair

Carrier screw compressor motor repair<br></br> <br></br> Performance characteristics<br></br> <br></br>  Use of chlorine-free refrigerant HFC-134a;<br></br> <br></br> 06N twin screw compressor achieves high full load efficiency;<br></br> <br></br>  Use flooded evaporator and condenser to enhance heat exchange efficiency;<br></br> <br></br>  Using electronic expansion valve, precise control;<br></br>

06/29/2020

What is the cause of compressor pipeline vibration

09/14/2020

Analysis of common failures of air-cooled compressors (1)

There are three common failures in the main components of air-cooled compressors: 1. Failure of the gas circuit system 2. Failure of the oil circuit system 3. Failure of the transmission mechanism. Do some system analysis below

12/10/2024

How to detect the tightness of the refrigeration equipment system

Keep the refrigeration equipment under a proper vacuum for a certain period of time, and observe whether the air infiltrates the system from the reading of the vacuum pressure gauge to check the sealing performance of the system.

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?

12/13/2021

How to Add Encoder to Stepper Motor

When the current flows through the stator winding, the stator winding produces a vector magnetic field. The magnetic field will drive the rotor to rotate an angle, so that the direction of magnetic fields of the rotor is consistent with that of the stator.

08/08/2020

7 advantages of screw refrigeration compressors

7 advantages of screw refrigeration compressors As a kind of rotary refrigeration compressor, screw refrigeration compressor has the characteristics of both piston type and power type (speed type).

06/20/2020

Common fault phenomena, causes and elimination methods of piston compressors

Common fault phenomena, causes and elimination methods of piston compressors 　　Common faults of piston compressor (1) 　　 Phenomenon: the compressor cannot start Reasons: 1. Electrical circuit failure; 2. High and medium voltage relay and oil pressure relay are disconnected.<img src="{{media url=&quot;Common_fault_phenomena_causes_and_elimination_methods_of_piston_compressors.jpg&quot;}}" alt="" />

08/13/2020

Installation process and skills of cold storage board

1. According to the design drawings, if there are supporting beams, columns, and supporting steel frames in the library, they should be laid out and positioned according to the requirements of the design drawings, and accurately and clearly marked;

08/15/2020

What are the matters needing attention when installing rock wool board in cold storage

Many businesses now have their own cold storage and install semi-hermetic refrigeration compressors, through which food can be well preserved. So what should we pay attention to when installing rock wool board in the cold storage.