Danfoss Compressor SM160W6AI

08/21/2020

What are the advantages of using economizers for screw chillers

1. What is an economizer Economizers are often used in secondary air screw compressor refrigeration systems. Under working conditions with relatively low evaporation temperatures (below -25°C), the efficiency of ordinary single-stage screw compressors decreases,

06/29/2020

Compression ratio of American Copeland compressor

11/24/2022

Classification of Flame Detectors

Burning generates smoke and releases heat, thanks to which, smoke detectors are invented to protect the people and properties.

03/10/2021

Servo driver related parameter setting method

Position feedforward gain: set the feedforward gain of the positioning loop. The larger the set value is, the smaller the position delay isand the larger the feedforward gain of the position loop is, the high-speed response of the control system will rise, but the position of the system is unstable and prone to oscillation. When high response characteristics are not required, this parameter is usually set to 0, indicating the range of 0 ~ 100%.

07/29/2024

How to Unstick a Reversing Valve on a Heat Pump

A heat pump is a remarkable piece of technology, capable of efficiently heating or cooling a space by transferring heat from one place to another.

08/13/2020

Is the filter of the central air-conditioning air purification device as many as possible

Many people will ask: Is the filter screen of the central air-conditioning air purification device as many layers as possible? the answer is negative. The filter of the central air conditioner air purifier is not based on the number of layers, but on the Pﰨ2䀀湠癐V

07/27/2020

The use and maintenance operation of screw unit

Parallel unit: generally composed of the same type of compressor, but also can be composed of different types of compressors. It can be composed of the same type of compressor, or it can be composed of different types of compressors (such as piston machine + screw machine). As shown below:

03/31/2022

6 Common Linear Guideway Materials?

From the perspective of appearance, the linear guideway is a long strip-shaped metal shell, which is true in itself. The basic material of the linear guideway is profile.

08/03/2020

7 practical heat exchanger technical questions

Answer: In the most common partition type heat exchanger, there are mainly two heat transfer methods: conduction and convection.

11/10/2022

3 Common Expansion Valve Failures and the Solutions

The most common failures in the use of expansion valves are valve blockage, frosting, ice blockage and oil blockage.