JUNTAI Vane Pump VP-DF-30D-30D

08/24/2020

Why does the cooler temperature drop slowly

1. The cold storage has a large loss of cold due to poor heat insulation or sealing performance. 　　 Poor thermal insulation performance is due to insufficient insulation thickness of pipes, warehouse insulation walls, etc.,

09/15/2020

Adjustment of main machine clearance of twin screw compressor

I repaired a main engine with locked rotor in the early stage. It is an EP200 model produced by Ingersoll Rand in 1997. Before I repaired it, Ingersoll Rand itself could not repair it. Because the main engine was severely deformed and the rotor and cavity Severe body adhesion.

09/06/2020

Air filter manufacturers introduce you to several common materials of filter cotton

Filter cotton can be divided into G1, G2, G3, G4, F5 grades according to the filtration efficiency, and according to different materials, it can be divided into 4 types: synthetic fiber filter cotton, non-woven filter cotton, glass fiber filter cotton, and activated carbon filter cotton.

08/20/2020

Operation method for filling freon in refrigeration system of high and low temperature box

The operation method of filling Freon in the refrigeration system of the high and low temperature box is as follows: 　　1, prepare a scale, weigh the freon cylinder, and record the net weight of the total weight Leon.

06/29/2020

How the compressor works

09/04/2020

The focus of Chinese manufacturing transformation and upgrading

Chinese manufacturing industry has achieved world-renowned achievements in the thirty years of reform and opening up. With the development of Internet technology, disruptive innovation in the manufacturing sector is not only difficult to predict,

08/04/2020

Several important issues that should be paid attention to when installing and debugging the inverter on site

nverter is an electric energy control device that uses the on-off action of power semiconductor devices to transform industrial frequency power into another frequency.

08/07/2020

Brief introduction of heating and cooling triple heat pump system

Everyone knows that "refrigeration" is not just a simple cooling process. Compared with natural cooling, the "refrigeration" process actually consumes a certain amount of external energy (such as electricity, heat, solar energy, etc.)

08/30/2020

Current situation and application of compressor rotor materials

With the development of science and technology, the rotor materials of screw compressors and centrifugal compressors have made great progress and changes nowadays. The author has done some research experiments on this, and this article briefly talks about it.

08/13/2020

Popularization of cold chain technology analysis of the advantages and disadvantages of 5 types of compressors

There are mainly five types of compressors, piston compressors, rolling rotor compressors, turbo compressors, screw compressors, and centrifugal compressors. This article briefly introduces the advantages and disadvantages of various compressors.