Keyence Sensor LK-H087

12/30/2024

Principles and Differences of 2-wire, 3-wire, and 4-wire Transmitters

2-wire, 3-wire, and 4-wire transmitters refer to the transmitters whose outputs are analog DC current signals.

08/03/2020

14 moving pictures show various air-conditioning compressors, hurry up and collect them

The compressor is the low pressure gas<br></br> A driven fluid machine that is upgraded to high-pressure gas. It is the heart of the refrigeration system and provides power for refrigeration.

06/29/2020

Several causes of compressor burning

07/19/2020

Types of refrigeration compressors for industrial chillers

The energy efficiency ratio of the chiller compressor of the chiller unit determines the energy efficiency ratio of the entire refrigeration system. Since the ambient temperature changes, the compressor is in a partial load state most of the time, so the compressor must have energy regulation.

09/07/2020

How to choose the right lubricant

As the largest developing country, China is developing rapidly on the road of comprehensive industrial electrification. At the same time, my country is the world's largest electricity consumer, and it also has the second largest power after electricity-the broadest market for compressed air.

08/19/2020

Troubleshooting of low valve temperature of screw chiller

The outlet temperature of the expansion valve of the screw chiller reflects the evaporation temperature, which is a factor that affects the heat exchange. Generally, the difference between it and the outlet temperature of the refrigerant water is 5~6℃.

06/29/2020

Time node of compressor refrigeration oil replacement

Time node of compressor refrigeration oil replacement 1. The long-term operation of the entire refrigeration system, after the initial maintenance, if there are no special circumstances, the compressor refrigeration oil should be replaced when the refrigeration system working time reaches 10,000-12,000 hours.

08/15/2020

Selection knowledge of screw chiller

Screw chiller is a large-scale industrial refrigeration equipment. It is widely used in central air-conditioning and large-scale refrigeration industry. It plays an important role in refrigeration, cooling and cooling.

06/28/2020

In a few words, make it clear how strong the Hitachi central air-conditioning compressor is

In a few words, make it clear how strong the Hitachi central air-conditioning compressor is After seeing many posts on the compressors of Science Hitachi, various parameters and terminology simply summarize the following points

08/02/2020

The working principle of screw compressor and comparison of fully enclosed, semi-closed and open type

Compared with reciprocating piston refrigeration compressors, screw refrigeration compressors have a series of advantages such as high speed, light weight, small volume, small footprint and low exhaust pulsation.