First, the oxygen concentration must be too high, and it is easy to cause explosion when it touches flame or oil. Why does oxygen explode? In fact, everyone who knows chemistry knows that oxygen itself is a combustion-supporting substance. Although it is put in an oxygen bottle, improper operation will still cause a big explosion. Moreover, the oxygen cylinder is filled with high concentration of pure oxygen. When the environmental quality is not good, or there is a flame, it is easy to produce a huge explosion. As we all know, combustion must have three elements, the first is combustible, the second is oxygen, and the third is ignition temperature. After all, it is only a combustion-supporting gas, so it will cause intense combustion and release a lot of heat when encountering combustible materials. So I think the explosion in the hospital was caused by rapid burning. The pipe wall has reached the melting state, so the explosion is caused by the sudden and rapid expansion of gas volume.
Second, the hospital is a place to cure diseases and save lives, and it is also a key protection unit. Because there are so many combustible substances in the hospital, once there is a fire in the hospital, the consequences are very serious. First of all, some treatment equipment in hospitals is expensive, and medical equipment is expensive. The fire will cause very serious damage to the equipment here, and it will also cause social impact and irreversible harm to the patients in the hospital. Because of the economic loss and the loss of life and property, it is particularly important to prevent fire in hospitals. So what items are usually easy to cause fire in hospitals? The first is that the radiation room of the hospital has a fixed radiation machine that emits X-rays. These X-rays and ordinary circuits are faulty, and the parts have been damaged by short circuit. The damaged parts of these machines will cause electrical appliances to catch fire, and there is a high probability that these machines will be short-circuited.
Third, the machine will also generate some heat energy, and there is a threat of fire. Oxygen itself is flammable and explosive gas, and hospitals use compressed oxygen. In equipment or tanks, the oxygen concentration is extremely high and the pressure is very high. In case of fire or other reasons, deflagration or explosion will occur. The second threat is film, which is flammable and has great fire risk. The third is in some medical aspects, such as the anesthetic used in the operating room is flammable and explosive, and once there is an open flame, it will cause very serious consequences. Fourth, in some laboratories, chemical reagents used in the laboratory are sometimes used, even alcohol lamps, open flames or ovens, which are very easy to cause fires. The fifth is in the pharmacy, where there are many things, complex types, flammable items and medicines.