Hydrogen branch line fire response plan

Thread Content

This post was last edited by sunjl1981 on 2013-1-6 at 20:27. Here is a plan for dealing with fires in hydrogen branch pipes; please share your suggestions: Plan for Handling Fires in Hydrogen Branch Pipes I. Causes of the incident: 1. Poor sealing of the hydrogen branch pipes, resulting in an accumulation of hydrogen within the factory, which raises the hydrogen concentration in the air to levels above the explosive limit. 2. Ignition source: ① Poor power interruption due to deviation in the flow of saline or alkaline solutions, resulting in electric sparks (in such cases, there is usually a significant deviation in the voltage with respect to ground). ② Sparks generated when the workers connecting the copper strips do so while installing or removing the tanks. ③External sources of fire: smoking, welding, using mobile phones, etc. ④The lightning protection facilities in the electrolysis plant are in poor condition, resulting in inadequate lightning protection. ⑤The hydrogen battery becomes scaled due to lack of power; there is water in the hydrogen branch pipe or the hydrogen battery, resulting in poor power isolation and sparking even when connected to power. II. Emergency handling methods: 1. Upon detecting a fire in the hydrogen branch pipe, immediately notify the control room and the drying station; it is essential to maintain a slight positive pressure of hydrogen at 5–10 mm of water column (negative pressure must be avoided to prevent backfire explosions) ； Get ready to park using the hydrogen unit. 2. If the location of the fire is low above the ground, the operators at the electrolysis station can use thick cotton cloth that has been soaked in water to cover the burning area, until the fire is extinguished. 3. If the location of the fire is at a high height above the ground, the operators at the electrolysis station can use 2–3 dry powder fire extinguishers to spray the fire site intensively until it is extinguished. III. Preventive measures: 1. The top of the electrolysis plant should have good ventilation; the release of hydrogen gas inside a single cell is strictly prohibited. 2. Adjust the saline and alkali drip emitters at any time to ensure no leakage or electrical short circuits. 3. The hydrogen branch pipes near the tank during loading and unloading must be tightly sealed. 4. Clean the hydrogen battery regularly when power is cut off. 5. Regularly inspect and maintain lightning protection facilities. 6. The driving and electrical equipment meet safety requirements. 7. Strengthen the sense of responsibility among operators at their posts. # + + .