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Power unit for compressor of air separation plant

Power unit for compressor of air separation plant
Feb 04, 2026
Author: DEAR AST

Compressors are important energy consuming equipment in air separation plants, and generally use electric motors as power units. However, if the user has sufficient steam sources, they can be driven by steam turbines to reduce energy waste. In particular, centrifugal compressors with large or ultra large hole pile devices are more suitable for steam turbine driving. Currently, air compressors and superchargers equipped in the internal compression process have generally adopted the method of steam turbine driving.

Since its establishment, DEAR Air Separation has created brilliant achievements in the field of steel and chemical industry, and has made high-quality products in various levels of air separation equipment. In recent years, with the enhancement of global environmental awareness, DEAR Air Separation has been brave in assuming social responsibilities and obligations, actively cooperating with the new energy field, successively serving as Jiangsu Shanjun New Energy Co., Ltd., Kangbo New Materials Co., Ltd., Guzhuang Ecological Energy Conservation and Recycling Agriculture Co., Ltd Many environmental protection enterprises, such as Dongfang New Hope Energy Co., Ltd., Future Ecological Energy Co., Ltd., Taihe Dahua Energy Technology, and Chaowei Sustainable Renewable Resources Co., Ltd., have provided supporting products and made significant contributions to energy conservation, consumption reduction, and environmental protection and emission reduction.

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In the process of operation, especially in the start-up and shutdown of the air separation unit, one-way force should be avoided on the instrument. During the start-up of the equipment, close the high pressure and low pressure valves firstly, then open the balance valve, and then slowly open the high pressure (or low pressure) valve, so that the measured medium can enter the positive (negative) pressure chamber of the transmitter. If the liquid is to be measured, the gas in the positive (negative) pressure chamber should be discharged from the upper vent. If the gas is measured, drain the liquid accumulated in the positive (negative) pressure chamber from the lower drain screw hole. After discharging the gas (liquid), close the balance valve, and then open the valve on the other side. When the equipment is shut down, the high pressure (or low pressure) valve should be closed first, then the balance valve should be opened, and then the valve should be closed on the other side. Someti
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