Danfoss Compressor SM112T7PBO

09/21/2020

Common physical and chemical properties of lubricants

1 Overview<br></br> Kaifeng Air Separation Group Co., Ltd. has been designing and manufacturing centrifugal compressors for more than 30 years since it started manufacturing centrifugal compressors in 1969.

07/29/2020

Common reasons and maintenance methods for the fan not rotating outside the air conditioner

Common reasons and maintenance methods for the fan not rotating outside the air conditioner After the air conditioner is used for a long time, or the installation process is not in place,

08/09/2020

Regulations for the adoption of heat recovery chillers in refrigeration stations

1. For buildings that require both cooling and heating, heat recovery chillers can be selected when the technical and economic analysis is reasonable. By recovering the heat lost by the cooling water, the unit is used for air conditioning hot water or hot air preheating,

03/01/2021

The main difference between brushless DC motor and DC servo motor

Different definitions: (1) Brushless DC motor is a typical mechatronics product, which is composed of motor body and driver. Brushless motor refers to the motor without brush and commutator (or collector ring), also known as commutator less motor. As early as the 19th century, when the motor was born, the practical motor was the brushless form, that is, the AC squirrel cage asynchronous motor, which has been widely used. However, the asynchronous motor has many insurmountable defects, so that the development of motor technology is slow. The transistor was born in the middle of last century, so the brushless DC motor using transistor commutation circuit instead of brush and commutator came into being. This new type of brushless motor is called electronic commutation DC motor, which overcomes the defects of the first generation of brushless motor.

08/24/2020

Health sterilization is sought after, air-conditioning innovation boosts market recovery

Since the beginning of this year, affected by the new crown pneumonia epidemic, the development of the air-conditioning industry has been relatively difficult.

09/04/2020

Quality is the life of a factory, but why is the position of quality-oriented the most embarrassing

Many factories believe that quality is the life of the factory. The managers of the factory also attach great importance to quality, but they would rather invest more sales staff in sales to push products

12/27/2022

How do Programmable Logic Controllers Work?

When a programmable logic controller (PLC) is put into operation, its working process is generally divided into three steps, namely input scan, executing program(s), and output scan.

08/11/2020

What are the common problems in the use of cold storage for preservation products

Two commonly used measures to block the exchange of hot and cold air include installing an air curtain or installing a transparent plastic soft curtain in the cold storage door.

09/11/2020

Recent market development of air source heat pumps in various countries in the world

The 1997 World Climate Summit in Kyoto, Japan established the reduction of greenhouse gases (GHG), achieving the goal of reducing greenhouse gases by at least 5% below 1990 levels between 2008 and 2012.

06/29/2020

Compression ratio of American Copeland compressor