Parallel gas compressor release device

Abstract

The invention discloses a bleeding device with gas compressors connected in parallel. The bleeding device with the gas compressors connected in parallel comprises at least two gas compressors connected in parallel, a bleeding header pipe and control valves, wherein the bleeding header pipe is connected with an outlet of a bleeding pipe of each gas compressor; and each control valve is arranged on the bleeding pipe of the corresponding gas compressor. The corresponding control valve is arranged on the bleeding pipe of each gas compressor, and when a certain gas compressor is repaired, the corresponding control valve is closed directly, gas leaked from other gas compressors can be prevented from entering the repaired gas compressor, and therefore, by the bleeding device with the gas compressors connected in parallel, a working environment of workers who repair the gas compressors can be improved.

Description

technical field [0001] The invention relates to the technical field of maintenance of gas compressors, in particular to a parallel gas compressor discharge device. Background technique [0002] At present, the main operating equipment of the benzene hydrogenation hydrogenation system in the coking plant uses multiple reciprocating gas compressors operating in parallel. The raw coke oven gas enters each gas compressor through a main intake pipe and is compressed by multiple stages. After 0.1MPa is compressed to 1.9MPa, it flows out through a main exhaust pipe. The inlet pipe entering the gas compressor is equipped with an inlet control valve and an inlet filter, and the outlet of the gas compressor is respectively equipped with an exhaust control valve and a stop valve. return valve, the upper part of the body of the gas compressor is respectively provided with a discharge pipe connected by a discharge main pipe and then discharged to the atmosphere, and the outlet of the dis...

AI Technical Summary

Problems solved by technology

The following takes three gas compressors as an example to illustrate. First, after the three coal compressors have been in continuous operation for a long time, the packing at the primary cylinder and the secondary cylinder will gradually leak and flow into the discharge main through the discharge pipe. Therefore, the gas concentration monitored at the outlet of the discharge main pipe will gradually increase. However, since the three gas compressors share the welded structure of the discharge system pipeline, the intermediate links cannot be controlled, so it is impossible to determine which gas compressor is leaking in the entire operation system. Only through The method of shutting down two machines and running one machine back and forth to test can be judged, resulting in frequent start-up and shutdown of the equipment and accompanying risks

Secondly, since each compressor has two cylinder packings and corresponding relief pipes, even if it is determined which compressor leaks through the above method, the welded structure of the relief pipes will make it impossible for the operator to accurately determine the exact location of the packing leakage

Moreover, due to the need for continuous production, the maintenance mode of the entire compressor system adopts two normal operation and one shutdown maintenance one by one. Since the welded discharge pipe cannot be blocked by plugging the blind plate, once the two gas compressors in operation are filled If there is a leak in the main pipe, the gas leaked from the main pipe will be poured into the maintenance compressor, causing the gas concentration in the machine room to exceed the standard, and the maintenance cannot be carried out normally.

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