Beckhoff Module EL7211-0010

09/20/2020

Noise life

For household appliances bearings, the bearing load is very small and the bearing life is very long. However, after a certain period of operation, the bearing will also cause wear, increased vibration and noise, and deterioration of grease.

07/19/2020

The role of refrigerant in the air-cooled chiller

The refrigerant itself circulates continuously in the refrigeration system, and then realizes refrigeration through its own state changes. The refrigerant absorbs the heat of the cooling medium in the evaporator and vaporizes, and transfers the heat to the surrounding air or water in the condenser to condense.

06/14/2020

Physicists create quantum refrigerator

Physicists create quantum refrigerator For decades, atomic physicists have used lasers to slow down the speed of atoms “jumping around” in the gas and cooled them to slightly above absolute zero to study their weird quantum properties.

06/22/2020

Causes and judgement of centrifugal compressor surge

Causes and judgement of centrifugal compressor surge Causes of centrifugal compressor surge ①Flow<img src="{{media url=&quot;Causes_and_judgement_of_centrifugal_compressor_surge.jpg&quot;}}" alt="" /> Each centrifugal compressor corresponds to a curve between outlet pressure P and flow rate Q at different speeds n, as shown in Figure 2.

02/13/2023

What is the Gearbox?

The gearbox, also called transmission that can changes the speed of a motor, is a power transmission device.

07/23/2020

Shallow oil return method of parallel refrigeration compressors

Compressor oil return is one of the key problems in piping design, and it is also a troublesome problem that must be solved; the solubility of refrigerant and lubricating oil should be miscible, slightly soluble, and miscible at high pressure and separate at low pressure. ; The problem of oil return often occurs in the exhaust pipe and return pipe. Today, the analysis is the oil return problem of parallel compressors

09/01/2020

In addition to air compressors, what is worse than the industrialization of hydrogen fuel cell vehicles

A few days ago, Hanbell Precision Machinery Company revealed that it had developed air compressor products for the fuel cell industry, which triggered heated discussions from all walks of life.

09/06/2020

Characteristics and Control of Exhaust Noise of Air Distribution Valve in Pneumatic System

In a pneumatic system, the air intake and exhaust of the cylinder are controlled by an air distribution valve, and the noise generated by the air discharged into the atmosphere through the exhaust port of the distribution valve is often greater than the noise generated by any part of the pneumatic system. And cause serious damage and pollution to the operators and the surrounding environment [2].

09/14/2020

Compressed air quality detection device

Okmarts.com recently developed a set of compressed air quality testing equipment that can detect the dust content, oil content and pressure dew point of compressed air online.

06/29/2020

Compression ratio of American Copeland compressor