C&U Bearing 3204A

12/20/2022

What is an Optical Fiber Amplifier?

The optical fiber amplifier, also known as the optical fiber ampler (OFA for short), refers to a new type of all-optical amplifier used in optical communication link to realize signal amplification.

08/11/2020

Is the duct air conditioner a central air conditioner Advantages and disadvantages of duct machines and central air conditioning

At present, there are mainly three types of household central air conditioners that are popular on the market: one is air-cooled heat pump hot and cold water units, commonly known as water machines (water system central air conditioners);

06/14/2020

Air conditioning expansion valve

What is the principle of air conditioning expansion valve? The electronic expansion valve is a throttling element that can enter the refrigerant flow of the refrigeration device according to a preset procedure

06/29/2020

Compression ratio of American Copeland compressor

06/14/2020

Workflow of single screw air compressor startup and commissioning

Workflow of single screw air compressor startup and commissioning

08/03/2020

HVAC essential! Three steps to accurately calculate the cooling capacity of central air conditioning

The cooling capacity calculation of central air-conditioning is divided into three steps: 1. Calculate the actual cooling capacity required: Calculate according to the practical area of ​​the room (carpet area, the floor area of ​​the home can be deducted from the floor area); 150 watts per square meter;

08/20/2020

Popularization of food cold storage and precautions for use

With the development of science and technology, people's living standards are improving day by day, and more and more types of food are used. It can be described as a dazzling array of items.

08/19/2020

Two ways of cold water chiller refrigeration

Water chiller refrigeration equipment is used in many industries such as plastic materials industry, rubber industry, chemical industry, electroplating laser industry, and pharmaceutical industry.

07/10/2020

Working principle diagram and precautions of screw air compressor

Working principle diagram and precautions of screw air compressor Working principle diagram of twin screw air compressor 1. Basic structure and working principle

08/29/2020

Compressed air technology is moving towards an era of high efficiency

Compressed air is the most widely used energy source in industry and commerce, in addition to electricity. Its wide application stems from its easy operation, fast speed, high power density, safety and good compatibility, but its higher cost cannot be ignored...