Schneider Compact base controller PLC TWDLCAA40DRF

07/07/2020

Earth Hour: Hitachi Central Air Conditioner works with you to speak for the earth

08/20/2020

Selection requirements for refrigeration piping parts of chillers

The accessories of the refrigeration pipeline of the chiller mainly include various valves and connectors. According to different refrigeration systems, chillers have different requirements for piping accessories.

08/27/2020

Compressor overhaul and correct installation matters, super complete and detailed

Content covered by compressor overhaul Compressors generally need to be overhauled after 12,000-26,000 hours of operation. In addition to all the work required for intermediate maintenance,

09/14/2020

Selection guide for air compressor

Selection of working pressure (exhaust pressure): When the user is preparing to purchase an air compressor, first determine the working pressure required by the air end, add a margin of 1-2 bar, and then select the pressure of the air compressor (the margin is considered from the air compressor The pressure loss from the installation site to the actual gas end pipeline distance, according to the length of the distance between 1-2 bar, appropriately consider the pressure margin)

08/03/2020

What is the cooling system of the computer room refrigeration facility, adsorption refrigeration, and assembly cold storage

Many people have little understanding of the cooling system of the computer room refrigeration facility, adsorption refrigeration, and prefabricated cold storage.

08/05/2020

Choose 2.5 flat or 4 flat wire for household air conditioner Listen to Fudge

Many people are decorating new homes for the first time. If you don’t understand circuits and wires, you will suffer a lot. You can only listen to what the electrician says. Air-conditioning is a large power-consuming item in the home,

08/04/2020

Analysis of five major problems in current heating management

With the development of society and the continuous improvement of people's living standards, traditional heating methods and management models have become less and less suitable for the development of the times.

09/07/2020

What should be paid attention to when choosing an adsorption dryer

With the rapid development of China's industrial economy, compressed air has become the second safest energy source after electricity, which is called air source; as compressed air post-processing equipment, dryers have also developed rapidly.

07/18/2020

Maintenance method for wear of refrigerator refrigeration compressor

　The application of screw refrigeration compressors is becoming more and more common, and some of them have entered the period of frequent failures. When the abrasion of the female and male rotors, body, and exhaust end seat of the refrigeration compressor reaches above 0.65rnm, vibration will occur when the refrigeration compressor is running, the sound is abnormal, the cooling capacity is reduced, and the compressor cannot work normally.

09/23/2020

Application of DCS system in anti-surge control system of air separation compressor

Keywords: DCS system, air separation compressor, anti-surge control system Preface 　　 The 6000m3/h air separation plant of Xilin Iron and Steel Company was completed in May 2001 by Hangzhou Oxygen Concentrator Group Company. The factory design was designed by Beijing Iron and Steel Design Institute. It was successfully put into operation on September 2, 2001, and it took more than half a year to run. It shows that the unit is operating stably, and all indicators have reached or exceeded the design value. The entire control system uses Honeywell’s TDC3000 and two GUS stations.