【Q&A】April 8, 2017

1. Immediately cut off the gas supply. 2. It is strictly prohibited to turn on or off non-explosion-proof equipment, as well as to use non-explosion-proof tools that could generate sparks. 3. Dilute the accumulated and floating gases with misted water

1) Immediately cut off the gas supply； 2) It is strictly prohibited to turn on or off non-explosion-proof equipment, as well as to use non-explosion-proof tools, to avoid generating sparks ； 3) Strictly control surrounding fire sources and prevent vehicles from passing by ； 4) Report to management, report to the fire department ； 5) Dilute with steam as a shield ； 6) Set up a perimeter security barrier

A. Immediately cut off the gas supply (or feed). B. It is strictly prohibited to start or stop non-explosion-proof equipment to avoid generating sparks. C. Strictly control surrounding fire sources (extinguish them immediately) and prohibit the passage of motor vehicles. D. Notify the relevant personnel.

1. Immediately cut off the gas supply; 2. It is strictly prohibited to turn on or off non-explosion-proof equipment, and non-explosion-proof tools must not be used to avoid generating sparks

1. Cut off all power supplies. 2. Wear protective masks and gloves. 3. Close the valves to stop the leakage

This question is too broad in scope. Leaks can occur in things such as tank trucks used for transporting liquefied petroleum gas, pipelines within plants, and spherical tanks used for storing liquefied petroleum gas. The general procedures for dealing with a hypothetical large-scale leak from a liquefied petroleum gas tank are as follows: 1. Immediately call the emergency services at 110 and 119, set up warning barriers to prevent vehicles from starting or entering the area, and evacuate unrelated people from within the factory and its surrounding areas. 2. Organize personnel to use fire hoses and steam to dilute the leaked liquefied petroleum gas. 3. If the leakage occurs at the upper part of the spherical tank, personnel are dispatched to carry out tank transfer operations, pouring the leaking liquefied petroleum gas into an emergency tank; if the leakage occurs at the lower part, a water injection pump is used to inject water into the spherical tank in order to raise the level of the liquefied petroleum gas and prevent both leaks of liquid and gas. 4. Once the extent of the leak is determined, measures to stop it can be taken, such as identifying the exact location of the leak and its size. Be sure to note: 1. When carrying out dangerous operations, the principle of safety first and putting people first must be followed; in cases where there is a threat to personal safety, the rescuers should immediately withdraw. It is very important to evacuate unrelated people and set up barriers (as everyone has a tendency to want to watch what’s going on). 2. Appropriate safety protection measures must be in place for the rescue personnel; equipment such as heavy-duty chemical protective suits, light-duty chemical protective suits, positive-pressure air respirators, filter-based respirators, and explosion-proof tools should be provided depending on the distance from the site of the leak. 3, 119, and 110 support are very necessary and important. 4. The on-site commander must remain calm and composed; multiple commanders are strictly prohibited, which depends on the effectiveness of regular emergency drills.

1. Immediately cut off the gas supply； 2. It is strictly prohibited to turn on or off non-explosion-proof equipment, and it is also strictly prohibited to use non-explosion-proof tools to avoid generating sparks ； 3. Strictly control nearby fire sources and prevent vehicles from passing by ； 4. Report to the fire department ； 5. Dilute and shield with steam ； 6. Set up a perimeter security.

Put on protective masks and gloves, cut off all power supplies, close valves to stop leaks, and organize personnel to evacuate in the upwind direction

(1) Immediately cut off the gas supply. Dilute and mask with steam. (2) Report to the fire department and relevant departments to prepare for firefighting ； Get ready to welcome the fire truck; unrelated personnel should evacuate. (3) Install road barriers along the roads surrounding the facility to control vehicle traffic strictly. (4) It is strictly prohibited to turn on or off non-explosion-proof electrical equipment; explosion-proof tools must be used when handling them. (5) This device immediately extinguishes all types of flames, and the control room notifies nearby devices to extinguish all types of flames (including heating furnaces). Decide on the appropriate action based on the specific circumstances, either by implementing partial shutdown or a complete shutdown of the facility. (6) On-site workers must wear air respirators and take care to prevent frostbite.

Put on protective masks and gloves, cut off all power supplies, close valves to stop leaks, and organize personnel to evacuate in the upwind direction.