Gas compressor condensate discharge method

Abstract

The invention discloses a gas compressor condensate discharge method. The gas compressor condensate discharge method comprises the steps that condensate flows into a sewage discharge pool after passing through a multi-stage buffer cavity unit of a gas-liquid separation buffer device; when the condensate enters a first-stage buffer cavity of the multi-stage buffer cavity unit, separated-out gas is collected in a separation cavity of the gas-liquid separation buffer device; and the gas in the first-stage buffer cavity enters an ascending pipe of the gas-liquid separation buffer device and is guided to a gas main pipeline through the ascending pipe. According to the gas compressor condensate discharge method, the gas in the condensate discharged by a gas compressor can be effectively recycled, the separated-out gas directly enters the gas main pipeline in front of a gas-liquid separator in front of the gas compressor, liquid automatically flows into the sewage discharge pool of the gas compressor through the liquid seal principle, gas leakage is not prone to being generated in the discharge process, overpressure risks cannot be generated, a liquid seal structure is adopted, and stability and reliability are achieved.

Description

technical field [0001] The invention belongs to the technical field of blowdown of coal compressors, in particular, the invention relates to a method for discharging condensate from a coal gas compressor. Background technique [0002] At present, coke oven gas, blast furnace gas or converter gas are widely used for gas turbine power generation. Gas turbine power generation needs to compress the gas to a pressure above 3MPa. Generally, multi-stage gas compressors are used for compression. Gas-liquid separators between compressor stages After the condensate level rises to a certain height, it needs to be discharged, because the gas pressure between the stages of the coal compressor or after the coal compressor is relatively high, so that part of the gas dissolves in the condensate, and after the condensate is discharged, there will generally be some The dissolved gas will be precipitated from the discharge liquid after the pressure is reduced, which will cause environmental po...

AI Technical Summary

Problems solved by technology

[0003] One is to use the blowdown tank method, the condensate discharged from the coal press directly enters the coal press blowdown tank, and a release pipe is installed on the upper part of the blowdown tank. When the gas precipitated from the condensate accumulates above the blowdown tank, it can pass through The release pipe is exported and directly discharged into the external atmosphere, but this method pollutes the environment and is no longer allowed under the current environmental protection requirements;

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