NSK Bearing NJ 206 E

06/16/2020

Talking about the four uses of air compressor

Talking about the four uses of air compressor Air compressor, which is a device that can compress gas. It is a device that converts the mechanical energy of a prime mover (usually a motor) into pneumatic energy. It is a pneumatic generating device for co器2䀀
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09/23/2022

Structural Characteristics of Gear Pump and Its Working Principle

Gear pump is a kind of hydraulic pump widely used in hydraulic systems. It is generally made into a fixed displacement pump.

07/31/2020

How to properly use central air conditioning during the epidemic Just read this one

At the moment of the epidemic, is there a risk of cross-infection in central air conditioning? How do units reduce the risk of using central air-conditioning? Xu Wei: The prevention and control of the new crown pneumonia epidemic is currently the most important work. The correct operation of the air conditioning and ventilation system during the epidemic period of infectious diseases can effectively reduce the chance of cross infection. Due to the diverse types of buildings and the wide variety of central air conditioners,

06/14/2020

Prerequisites and principles for adjustment of several operations in the refrigeration system of cold storage

Prerequisites and principles for adjustment of several operations in the refrigeration system of cold storage

03/24/2022

What is a Circuit Breaker?

In the process of circuit installation, a lot of facilities need to be configured. A circuit breaker is one of them. What is a circuit breaker? Let's learn about it together.

09/02/2020

Multi-dimensional comparative analysis of systematic energy saving of centrifugal compressors

With the continuous development of my country's industry, enterprises themselves not only face fierce competition in the market, but also put forward strict requirements on their own production and operation costs. "Throttling" means "open source".

12/15/2022

What is a Memory Stick?

The memory stick is a memory cards product launched by Sony in 1999. Shaped like a chewing gum

06/29/2020

How the compressor works

08/11/2020

The design points of capillary refrigeration system

1. On the high-pressure side of the refrigeration system, do not install a liquid reservoir, and try to reduce its effective volume on the premise that the condenser can contain all the refrigerant.

06/14/2020

Relay protection concept and basic requirements

Before introducing relay protection, first introduce several working states of the power system (1) Normal working state It means that all the equality and inequality constraints of the power system are satisfied, indicating that the power system me器2䀀
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