Who is the fire-fighting weapon?

The pan is the focal point of the “cautious fire candle” in the kitchen. The fire of the pan often happens in the kitchen. In the face of burning fire in the pot, you must not use the wrong means to extinguish the fire because of panic. Not only can you destroy the fire but you can also hurt yourself. If no fire extinguishing equipment is available, use the existing items in the kitchen to extinguish the fire. So what kind of items can be used to extinguish fires, and how to fire properly?

Case Review 1: The oil pan is on fire, splashes deep scald

March 2017 No. 10 at four o'clock, Chongqing Cheng in the kitchen preparing to make chili oil, the way a child will read out and found the pan on fire, immediately turn off the gas when he came back and tried to douse the fire with water, As a result, oil and water splattered. Mr. Cheng’s hands and face were scalded and sent to the hospital.

Experimental verification: Water is poured on a pot of water to help foster fire

When the hot oil in the pot catches fire, what will it look like if it is extinguished with water? Yiwu fire made a simple experiment.

In the open air of the Qianjiang Squadron of the Yiwu City Fire Fighting Brigade, fire officers and soldiers prepared the induction cooker, stainless steel pot and cooking oil, and heated the pot with an induction cooker. After the fire broke out, fire officers and soldiers wearing protective clothing poured water directly into the pot. In the pan. The moment the oil meets the water, the oil splashes, the flames grow more and more high, and people who stand three or four meters away can feel heat waves.

Principle analysis:

"The boiling point of water is 100 degrees, and the temperature of the oil pan is much higher than 100 degrees. When the water is poured into the pan, it will quickly boil and evaporate. At this time, its volume will reach the original 1600 times. When there is a lot of oil and water mixture in the air, it is just like the phenomenon of explosion in the experiment. Therefore, when the oil pan is on fire, it cannot be extinguished with water.” Gong Zhiwei, staff of the fire prevention supervision department of the Yiwu fire brigade, explained that The density of oil is lighter than that of water, and the above-mentioned phenomenon will occur when the water is poured into the pan. Because the heat-resistant temperature of human skin is below 70 degrees, the temperature of the mixture reaches 200 degrees or more, so it can easily cause harm to the skin.

Case Review 2: Cars Spontaneously Spontaneous

May 3, 2018 evening, Qinghe County, Xingtai Taihang Road, Fuxing Food City, Hebei Province, in front of a car suddenly spontaneous combustion. After the incident, a veteran who was eating nearby and a deputy director of a police station passing by were fighting for the fire at the first time. Among them, the veterans stopped a sprinkler, and the deputy director in the critical period, decisively took the Coke bubble to save the fire, and finally saved the day.

Experimental verification: Cola has a certain fire extinguishing effect

Fire officers and soldiers conducted a field test of “Coke Fire Extinguishing”. First, a pile of newspapers in the drum were ignited. Then they stood half a meter away and held a bottle of 1.25 liters of Coke. After unscrewing the bottle cap, they quickly swayed after catching the bottle mouth. Spray the flames. With cola spray, fire becomes gradually smaller, to a spray bottle is completed, the fire was extinguished.

Principle analysis: carbon dioxide flame retardant, but not suitable for oil fires, electrical fires

"Coke and other carbonated beverages contain carbon dioxide. After violent shaking, it produces sufficient foam, resulting in a huge pressure. As the cola liquid splashes, a certain amount of carbon dioxide gas pressure is generated, and Coke is transformed into a simple "fire extinguisher." A certain amount of suppression effect.” The fire officers and soldiers participating in the on-site experiment said: “But only when there is a small and initial fire on wood, cotton, wool, paper, etc. When a pan is burning at home, use a coke containing water to extinguish the fire, not only not extinguishing the fire, but also supporting the fire."

In fact, as long as the beverage contains carbon dioxide, the liquid is squeezed after shaking violently, and the foamed water column can achieve the effect of extinguishing the fire; however, a bottle of Coke can be used for a few seconds at most, and is limited by factors such as pressure, spray distance, etc. It is suitable for fighting small-scale Class A fires such as wood, cotton, wool and paper .

Learn to draw materials from the nearest place.

Vegetables are very easy to find in the kitchen. Can the pan be used to extinguish the fire with vegetables? The fire officers poured a plate of fresh green vegetables along the edge of the pan into the burning oil pan, and the fire had a noticeable weakening trend. But because the amount of vegetables was not enough to cover the entire bottom of the pot, the flame was not extinguished. If there is moisture in the vegetables, it will cause boiling splashes and burn the skin.

In fact, in addition to vegetables, edible oil, wet rags, and lids, these things can be used to extinguish a pan fire.

The use of ambient temperature oil to cover high-temperature oil can quickly reduce the temperature inside the oil pan. When the oil temperature drops below the ignition point, the fire will extinguish. Normal temperature oil must be slowly poured along the edge of the pan, quickly poured into or splashed in, will instantly deflagrate, and this method uses a large amount of oil, takes a long time, easy to burn.

The principle of fire extinguishing on wet rags and lids is similar, so that the burning fires cannot reach the air, and they will extinguish immediately due to lack of oxygen, which is often referred to as the "suffocation suppression method." Only by completely covering the surface of the oil pan with a damp cloth will it be possible to extinguish the fire. However, in the event of a fire, it may not be possible to find a large enough cloth quickly. The human body should be kept away from the pan as much as possible to avoid burns.

The “pot fire extinguishing” method is the easiest and most convenient method. It will neither cause waste nor contaminate the oil in the pan. The officers and soldiers of the Shoujiang Squadron of the Yiwu Fire Brigade also specifically demonstrated the correct method of fire extinguishing: Push the lid horizontally from the side into the pan. It is necessary to wait until the temperature in the pot drops before opening the lid, in order to prevent the possibility of re-ignition.

In addition, when the fire is extinguished, it is first necessary to turn off the air supply. If the fire is very large and the pot has overflowed, the safest way is to use a fire extinguisher. If it is found that the fire cannot be controlled, you should immediately escape and call the 119 alarm in time.

Fire is fiercer than tiger, prevention is the most critical

Pan cooking is one of the main causes of fire in the kitchen. The kitchen is used as a place where fire and electricity are frequently used. It is often a place where restaurants and household fires occur frequently. It is of utmost importance to learn how to prevent fire in the kitchen.

1. Strengthen the fire safety knowledge study and master the methods of kitchen defense, fire fighting and escape.

2. When the fire is used in the kitchen, the personnel must stick to their positions. It must be done so that people are extinguished by fire, electricity is off, and air is off.

3 , the use of qualified wire appliances and kitchen utensils, shall not overload the use of electrical appliances, often check the line is intact.

4 , the correct use of liquefied gas, avoid leakage when operating, avoid heating the tank, tank operation.

5 , when fried foods, to control the amount of oil in the pot, and pay attention to prevent water droplets and debris falling into the pan to prevent oil spills and catch fire. When the pan is heated, the fire is too severe and the oil temperature is too high, causing the pan to catch fire.

6 , equipped with dry powder fire extinguishers and other fire equipment, and placed in a clear location, can effectively eliminate the fire in the early stages.

7. Regularly check the gas fuel pipeline, flange joints and valves in the kitchen to prevent leakage and regularly clean the soot pipes.

This article comes from the Yiwu fire brigade.