Bosch Rexroth Servo Drive PPC-R02.2N-N-T2-NN-NN-FW

06/14/2020

Refrigeration compressor configuration application and precautions

Compressor configuration Generally speaking, semi-hermetic compressors are equipped with: oil filter, oil hole, exhaust with pressure gauge interface, suction cut-off valve, suction filter, sight glass.

08/03/2020

Judgment steps of refrigerant leakage in air conditioning system

first step:<br></br> 　　 Shut down and unplug the air conditioner (to prevent danger during the inspection process), and connect a pressure gauge to the large valve. Observe the static pressure

09/03/2020

Modified atmosphere packaging of nitrogen generator for food preservation<br></br>

Modified atmosphere packaging (MAP) accompanies many aspects of our lives and we benefit from it every day. In the supermarket, we hope to find a variety of fresh food, such as fresh bread,

05/23/2025

How to select the thermal expansion valve？

1. The role and classification of expansion valves<br></br> Expansion valve is an important part of refrigeration system, generally installed between liquid storage cylinder and evaporator. The expansion valve causes the medium temperature and high pressure liquid refrigerant to become low temperature and low pressure wet vapor through its throttling, and then the refrigerant absorbs heat in the evaporator to achieve the cooling effect.

08/18/2020

Causes of oil running of chillers and their solutions

During the commissioning of the chiller, I encountered the oil running of the unit many times. Most of the units with this problem used a flooded evaporator. Today, the editor of okmarts.com

06/25/2020

How to distinguish between screw refrigeration compressor and piston refrigeration compressor

Distinguish from type 　　 Screw refrigeration compressors and piston refrigeration compressors are both volumetric compressors, and screw refrigeration compressors are a new type of high-speed refrigeration compressors.

08/17/2020

Regulations to be observed in the use of cold rooms in civil cold storage

1. Pozzolanic cement and slag cement mixed with pozzolanic materials shall not be used in the cold room of civil construction cold storage; different types of cement shall not be mixed, and two types of cement shall not be used for the same component.

06/27/2020

The working principle and characteristics of inverter compressor

Inverter compressor refers to a compressor whose relative speed is constant, and whose speed is continuously adjusted within a certain range through a control method or means, which can continuously change the output energy.

08/24/2020

Operation flow chart of cold chain cold storage management system

In recent years, people's demand for fresh food has increased, which has promoted the development of the cold storage industry, and has also brought many problems and challenges.

06/29/2020

How the compressor works