Explosion-proof flame-retardant device for acetylene conveying pipeline

Abstract

The invention discloses an explosion-proof flame-retardant device for an acetylene conveying pipeline. The device comprises a carbon dioxide cylinder, a shell body and a PLC, wherein the carbon dioxide cylinder communicates with the shell body through a gas inlet pipe, a first electromagnetic valve is installed on the gas inlet pipe, an acetylene alarm is arranged in the shell body, the acetylenealarm is used for transmitting monitored signals to the PLC, the PLC controls the first electromagnetic valve, the shell body is arranged outside a flange in the acetylene conveying pipeline in a sleeve mode, and the lower end of the shell body communicates with an exhaust pipe. According to the device, acetylene leaked from the flange of the pipeline can be effectively prevented from being ignited, and flames in the pipeline can be prevented from spreading to an acetylene generator and a calcium carbide pulverizer.

Description

technical field [0001] The invention relates to an explosion-proof and flame-retardant device for an acetylene delivery pipeline. Background technique [0002] The production of acetylene is to crush the calcium carbide first and send it to the acetylene generator. The acetylene generator generates acetylene gas, and the acetylene gas is washed, cooled and compressed to obtain the product. Among them, the pipelines for transporting acetylene are made of multiple high-speed The pressure-bearing seamless steel pipe is connected by flanges. When the acetylene gas is compressed by a multi-stage compressor, the pressure of acetylene suddenly rises. Connection leakage, when the leaked acetylene encounters an open flame or static electricity, the acetylene is easy to ignite and spread along the pipeline to the front-stage acetylene generator and calcium carbide crusher, causing a serious explosion accident, so it is very necessary to develop an acetylene delivery pipeline Explosio...

AI Technical Summary

Problems solved by technology

[0002] The production of acetylene is to crush the calcium carbide first and send it to the acetylene generator. The acetylene generator generates acetylene gas, and the acetylene gas is washed, cooled and compressed to obtain the product. Among them, the pipelines for transporting acetylene are made of multiple high-speed The pressure-bearing seamless steel pipe is connected by flanges. When the acetylene gas is compressed by a multi-stage compressor, the pressure of acetylene suddenly rises. Connection leakage, when the leaked acetylene encounters an open flame or static electricity, the acetylene is easy to ignite and spread along the pipeline to the front-stage acetylene generator and calcium carbide crusher, causing a serious explosion accident, so it is very necessary to develop an acetylene delivery pipeline Explosion-proof and flame-retardant devices to prevent such accidents from sending

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