کاربرد گاز اشکارسازها در زیرزمینی لوله راهروها
Urban underground comprehensive pipe gallery is a municipal utility facility built underground for municipal utility pipelines٪2c which implements unified planning٪2c design٪2c construction٪2c and maintenance. During the construction process٪2c workers are actually working in a closed environment or confined space٪2c and occupational hazard protection for confined space operation is particularly important. الی و معدنی مواد موجود داخلی فاضلاب و صنعتی فاضلاب فاضلاب حمل و نقل از طریق خطوط لوله و زهکشی خطوط لوله٪ 2c تحت شرایط بی هوازی در بسته خطوط لوله٪ 2c می تواند تولید مختلف سمی ٪ 2c مضر ٪ 2c قابل اشتعال ٪ 2c و مواد منفجره گازها٪ 2c مانند هیدروژن سولفید ٪ 2c متان ٪ 2c کربن مونوکسید ٪ 2c و غیره. When the gas reaches a certain concentration٪2c it can cause personal injury to workers and explode when encountering open flames٪2c Causing impact on the the environment or harming surrounding people.
There are several situations for municipal and public utilities: gas supply safety inspection, leak detection, and the generation of combustible gas (CH4), hydrogen sulfide (H2S), etc; Fossil fuel powered equipment can produce nitric oxide (NO), nitrogen dioxide (NO2), etc.
٪0a خطرناک گاز٪3a
The urban comprehensive pipe gallery is located underground and is mainly used to accommodate urban engineering pipelines. Under poor ventilation or long-term semi enclosed conditions, the oxygen content is thinner than in the atmosphere due to environmental impact. Due to hypoxia, substances in the sewer and pipe gallery will ferment to produce hydrogen sulfide (H2S), ammonia (NH3), methane (CH4), and carbon monoxide (CO) gases. Hypoxic environments are quite dangerous for inspectors, ranging from dizziness, headache, tinnitus, dizziness, weak limbs, to difficulty breathing, cardiac arrest, and even suffocation to death. Hydrogen sulfide (H2S), ammonia (NH3), and carbon monoxide (CO) are toxic gases that can irritate the human respiratory tract and are prone to inhalation poisoning, resulting in symptoms such as dizziness, nausea, vomiting, and coma. In severe cases, they can lead to shock or even death. Methane (CH4) is a flammable and explosive gas, with a high concentration in the environment, which may form explosive mixtures and directly threaten the safety of the pipeline gallery itself.
