More “golden” time
In fires (houses, apartments, factories, etc.), the amount of oxygen burned produces carbon dioxide and other toxic gases, making those caught in the fire easily suffocated to death (but not dead). died from the heat of the fire).
If you are lucky to escape death, the brain is deprived of oxygen, which can easily lead to brain damage, long-term effects on human health and spirit.
The fire at An Phu karaoke bar (Thuan An City, Binh Duong) killed 33 people
Therefore, in any situation, people should not be deprived of oxygen and by all means should provide the minimum amount of oxygen for the respiratory process.
If someone is unfortunately trapped in a fire and has enough oxygen to sustain life for about 20-30 minutes, they will have more time to find a way out of the fire or wait for rescuers to intervene. then the chance of survival is high.
As mentioned above, most of the fires, the victims who died were mainly suffocated because of toxic smoke, not because of the heat of the fire (Carina apartment fire in District 8, HCMC in 2018) killed many people; the house fire in District 9, Ho Chi Minh City killed 5 people before the Lunar New Year 2020; most recently, the fire at An Phu karaoke bar, Thuan An city, Binh Duong killed 33 people …) .
By natural reflex, when a fire occurs, people seek to escape the fire. If you can’t escape, find a way to stay away from the fire to maintain life. However, in the combustion process, the amount of oxygen burned produces toxic fumes that spread everywhere, causing the victim to asphyxiate the smoke (lack of oxygen) and die before being directly affected by the fire.
According to the instructions of the firefighting and rescue forces, the way to respond in a fire is to use a wet towel to cover your nose; If you can’t get out, then enter the room with the door closed, apply duct tape to prevent toxic gas from getting inside… are temporary but useful solutions while waiting for rescue forces.
However, in reality, many cases are suffocated when trying to escape by stairs, emergency exits or running to the rooftop. Even died from injuries caused by jumping from a height. When burning, toxic smoke always rises to the top and spreads around. If smoke inhalation, the victim can die within minutes …
|How to survive a karaoke bar fire|
Concept design, production
From the above fact, the writer proposes the idea of oxygen storage tanks to provide directly to each person when unfortunately trapped in a fire. Specifically, use a personal oxygen tank containing enough gas for one person to use within 20-30 minutes.
From there, the solution is: research and manufacture personal oxygen tanks (mini oxygen tanks). The structure of an individual oxygen tank consists of 3 parts: an oxygen tank with enough gas capacity for one person to use within 20-30 minutes; oxygen mask (like the oxygen mask on an airplane); oxygen delivery system from tank to mask.
In terms of raw materials, steel is used to manufacture individual oxygen tanks with a weight of 3 – 4 kg. This device can be used with many different utilities in daily life (for the patient to breathe) and when the oxygen runs out, it can be refilled.
However, in the production process, it is necessary to implement some qualitative and theoretical steps… For example, calculating the amount of oxygen used in 20-30 minutes; calculate tank pressure; calculate the materials used; oxygen masks used must ensure that smoke does not enter the eyes; Expected service life of parts… Then produce a sample and then build an actual test model from which to make a general assessment of the product and compare its superiority (utility, price). ) with some other products on the market with similar features…
After the product is available, organize propaganda among the people to encourage them to use it. In each household, each agency, especially high-rise buildings and apartments, if each person is equipped with a personal oxygen tank, when a fire occurs, just put on an oxygen tank. people, put on an oxygen mask and open the valve to breathe, they will have a better chance of survival. People with personal oxygen tanks have enough time to find a way out or wait for the fire department to help.