ارشيف مدونة اميمه ايمن

Fire extinguishers and the kinds ofhttp://www.torcavettes.com/tech/fire/Kidde_FireExtinguishers.jpg
Is a metal cylinder filled with water with a chemical or heavy buffer, isolating oxygen from the burning material.And the work of fire extinguishers is to remove at least one of the elements that cause ignition, leading to the curb and discourage the interaction of combustion.
Types of fire extinguishers
Extinguishers, water ... Are usually large extinguisher cylinder, silver and two thirds fill the cylinder with water and air is used as a gas of normal internal pressure, and provide the scale of the pressure.This type of fire extinguishers to put out the fires of the type (A), but Guy occasion and even dangerous for use in other places, you should avoid use in extinguishing fires caused by the petition electrical (B) Water is a good conductor of electricity, poor use here will lead to electric shocks fatal.As well as in fires caused by flammable liquids (C) because the water will increase the area of ​​the fire will not be controlled and it will get worse.
Carbon dioxide extinguishers ... The red drum, with a big mouth, but with the pressure scale, filled with gas of carbon dioxide in its compressed liquid and when used outside of the drum rushes in the gaseous state due to low pressure.The carbon dioxide gas is heavy, it is heavier than oxygen and therefore fall rapidly over the region covered by the burning and cutting off their blood supply, and enjoy the cold helps to lower high temperature and thus inhibition of the combustion process.This is the type of fire extinguishers appropriate choice for fire suppression caused by the material flammable liquid (B) and fires caused by electrical petition (C) is not used to extinguish the fires of the type (A). * Extinguisher powder chemicals dry ... This is the most common and widely used is the same cylinder red color also have a long hose at the end of a small nozzle, equipped with a scale of pressure ... fill the cylinder powder of chemicals that may be phosphate ammonium mono, Othani potassium carbonate or CO sodium carbonate, is used to compress the nitrogen gas cylinder. The work of these chemicals as a cover for isolating oxygen surrounding the fire and inhibit the combustion process.There are several types of these fire extinguishers, each filled with a chemical and the appropriate use of each of which corresponds with the type of material burning and fire caused by the mismatch:- Used to extinguish fires type (DC)- Used to extinguish fires type (BC)- Used to extinguish fires type (ABC)
Extinguisher powder chemicals dry ... and this is more common and widely used is the same cylinder red color also have a long hose at the end of a small nozzle, equipped with a scale of pressure ... fill the cylinder powder of chemicals that may be phosphate ammonium mono, Othani potassium carbonate or bicarbonate sodium, and is used to compress the nitrogen gas cylinder. The work of these chemicals as a cover for isolating oxygen surrounding the fire and inhibit the combustion process
Common mistakes when using fire extinguishers, fire hand:1 - Fire reverse air flow, reduces the efficiency of Almtafah and displays the bearer of heat, smoke and fire material.2 - not to bring the projectile to the base of the flame.3 - start throwing Fire Article by moving closer to a distance.4 - not sure of the fire suppression Vieod ignition.
How does it work as an educational tool for manual fire extinguishers?
Can make a model of fire extinguisher as an educational tool in the course of the work training through the following:1 - bring an empty plastic bottle and have a lid.2 - test tube or bottle is small enough to enter another large bottle.3 - Keep the tube or small glass powder, baking powder.4 - put the big bottle half vinegar.5 - connect the small bottle and floss Nalgahadakhl large bottle away from the surface of the vinegar.6 - We cover a hole in the bottle and pass them large hood (pack of juice).7 - occupied by the large Ikhtalt turn the bottle of vinegar with baking powder and the reaction is carried out and the gas carbon dioxide and heat are planed simple on the surface of a particular God willing, succeed in extinguishing.Model is simplified and tested for the purposes of training and education on the hand fire extinguishers.
Safety rules
Do not face the fire if you are not equipped with adequate equipment.
Known to cause the type of material burning in the fire and make sure you use the appropriate extinguisher.
Make sure the appropriate extinguisher to put in the right place
Examine the fire extinguisher from time to time and make sure that the security key is installed in the handle
Note the movement of the cursor in the pressure gauge and check the validity of the use of extinguisher
Be eight feet at least when you put out the fire
Make sure you have mastered the use of extinguisher and trained them.


اذا اعجبتك هذه التدوينة فلا تنسى ان تشاركها وتساعدنا على نشر المدونة ، كما يسعدنا ان تنضم الى قائمة المشاركين في سما بلوجر من خلال (نشرات rss)

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