NACHI Bearing 51108

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.

08/14/2020

Protection preparation before cold storage installation

Once the cold storage is installed or used improperly, it is very likely to affect the smooth application of the cold storage.

06/29/2020

Compression ratio of American Copeland compressor

08/09/2020

Reasons and solutions for the temperature always not rising

At present, floor heating has been widely used and applied in many places in our country. However, many owners report that the temperature of their own water and floor heating in winter is not very ideal

08/16/2020

The old method of repair and maintenance of screw chiller

With the development of economy and the improvement of production process requirements, screw chillers have become an important aspect of most enterprises’ production cooling needs.

08/08/2020

Precautions for operation of cold storage condenser

Precautions for operation of cold storage condenser 1. When the refrigeration system is running, all the other valves of the condenser should be opened except the oil drain valve and the air valve closed.

08/15/2020

What should I do if wall cracks appear after the cold storage is built

After the construction of the cold storage project, there may be many problems. For example, we have seen a lot of news recently. It is said that the wall cracks appeared after the construction of the cold storage

03/08/2021

AC servo driver wiring precautions

For signal line and encoder input line, please use shielded wire. Wiring length: the length of signal line from NC to AC servo driver is less than 3m, and the length of input line from AC driver to encoder is less than 20m. The ground wire should be thick wire as far as possible. According to the third grounding standard (grounding resistance < 100 Ω), one point grounding method should be adopted to connect the ground wire. If the motor and the machine tool are insulated, the motor should be grounded.

08/10/2020

Causes and solutions for ice blocking in supermarket freezer

Nowadays, commercial freezer is one of the necessary equipment in supermarkets to store and display goods; its appearance will undoubtedly bring convenience to more and more demanders;

01/10/2021

The importance and design application of hotel fresh air system

With people's emphasis on environmental protection and the continuous improvement of air quality requirements, the fresh air system has become a hot word that appears frequently. As a place for people to relax and entertain, the requirements for the decor器2䀀
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