排水工程中气体防爆设计的探讨

摘要:

排水工程中的有机物质在厌氧环境下可能产生甲烷(CH4)、硫化氢(H2S)等气体。甲烷(CH4)、硫化氢(H2S)均为可燃气体,在特定条件下,有爆炸危险。本文围绕排水工程中气体防爆设计进行论述,通过对易燃易爆物质确定、第一次预防措施、释放源确定、危险区域划分、排水工程中常见的气体爆炸性环境、以及排水工程中部分场所气体防爆措施的探讨等论述,提出气体防爆设计的相关技术要点和建议。防爆技术措施应既合规、安全,又经济合理。

Abstract:

The organic material in the drainage engineering may generate gases such as methane (CH₄) and hydrogen sulfide (H₂S) in an anaerobic environment. Methane (CH₄) and hydrogen sulfide (H₂S) are both flammable gases, which may explode under certain conditions. This paper discusses the gas explosion-proof design in drainage engineering, and puts forward the relevant technical points and suggestions of the gas explosion-proof design by discussing the determination of flammable and explosive substances, the first preventive measures, the determination of source of release, scope of hazardous area, usual hazardous areas in the drainage engineering, and discussing the design of some hazardous areas in the drainage engineering. Explosion-proof measures shall not only conform with the standards for safety, but also economical and reasonable.