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The petrochemical enterprises have the characteristics of suddenness, variability, rapidity, and difficulty in fighting. It is necessary to take corresponding countermeasures according to different situations.
The main task of fighting fires in petrochemical enterprises
Eliminate the danger of explosion
Rescue human life
Prevent poisoning
Use fire extinguishing agents and neutralizers carefully
Most of the fire-burning articles in petrochemical enterprises are chemical dangerous goods. The corresponding fire-extinguishing agents should be used according to different burning objects and combustion conditions. If the fire extinguishing agent is not used properly, not only can the fire not be extinguished, but the fire will increase and even cause an explosion.
In addition to the ventilation and dispersal measures, various toxic gases generated at the scene of petrochemical enterprises' fires may be infiltrated into the water by using a spray gun to extinguish the fire, and neutralize the toxic gases.
Tactical measures to save fires in petrochemical enterprises
Grab the opportunity to win quickly.
Grab the opportunity of the early stage of the fire or the weak fire, use the environmental conditions, and control and eliminate the fire with the fastest combat action.
Use cold to heat to prevent explosions.
At the same time of extinguishing the fire, the equipment for the fire and the surrounding equipment shall be cooled and cooled, so that it cannot be lost and prevented from exploding.
Focus first, then general.
First extinguish the peripheral fire, then attack internally to control the fire spread to the surrounding area to prevent the formation of large-scale fires. When the combat strength is insufficient, it should be focused on the general, first easy and then difficult to control the fire.
Each breaks and fits in time.
For large-area fires, methods of breaking, interspersing, blocking fire, and timely cofferdams should be adopted.
Take fire fighting measures
The main fire extinguishing measures are as follows:
Closing the valve is to control and cut off the combustible material flowing to the fire source, so that the combustion is stopped.
Open valve diversion is a process fire extinguishing measure that reduces the burning time or the combustion to stop the combustible materials of the ignition tank and equipment. When conducting pressure on fire-fighting equipment, it is necessary to prevent negative pressure and tempering explosion. When guiding the flow, pay attention to the pressure of the equipment. When the pressure is close to the gauge pressure, immediately close the diversion valve to stop the flow.
Stirring is suitable for saving liquid fires in tanks, containers, and high flash points in the reactor.
(Source: Binzhou Safety Supervision Office)
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