Method for improving efficiency of gas drainage liquid ring vacuum pump through macromolecular drag reduction agent

Abstract

The invention discloses a method for improving the efficiency of a gas drainage liquid ring vacuum pump through a macromolecular drag reduction agent, and belongs to methods for improving the efficiency of liquid ring vacuum pumps. The method comprises the steps that the quantitative macromolecular drag reduction agent is prepared and poured into a circulating pool continuously through a drag reduction agent filling machine till the optimal drag reduction concentration is reached; the gas drainage liquid ring vacuum pump is operated, and the macromolecular drag reduction agent serves as a working medium of the liquid ring vacuum pump to conduct gas drainage; and the viscosity and the liquid level of the drag reduction agent as well as the operation performance of the gas drainage liquid ring vacuum pump are monitored in real time, accordingly, the quantitative drag reduction agent is supplemented in the fixed time, and the drag reduction performance and the liquid level of the drag reduction agent are maintained. The macromolecular drag reduction agent is a polyacrylamide solution with the concentration being 0.1-0.5%. Through the method, the efficiency of the liquid ring vacuum pump can be substantially improved, operation energy consumption can be reduced, and the maintenance period and the service life of the liquid ring vacuum pump are obviously prolonged.

Description

technical field [0001] The invention belongs to the technical field of vacuum pumps, and in particular relates to a method for improving the efficiency of a gas drainage liquid ring vacuum pump with a polymer drag reducer. Background technique [0002] Liquid ring vacuum pumps use clear water as the main working medium, and use isothermal compression to pump gas. It has excellent safety and reliability and is widely used in coal mine gas drainage, steel, chemical, paper, aviation and other fields. However, liquid ring vacuum pumps are also recognized as products with high energy consumption and low efficiency. Taking the field of coal mine gas drainage as an example, according to incomplete statistics, the annual power consumption of a large mine gas drainage pump station in China is as high as tens of millions, or even hundreds of millions of yuan, accounting for about 1 / 4 of the total power consumption of coal mines, and The actual operating efficiency is only 10-40%. ...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the deficiencies in the prior art, provide a method for improving the efficiency of gas drainage liquid ring vacuum pumps by polymer drag reducers, and solve the problem of low efficiency, high energy consumption and high failure rate of gas drainage liquid ring vacuum pumps technical problems

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