The basic maintenance process of carbon dioxide fire extinguishers: fire extinguishers enter the factory-check before maintenance-fire extinguisher disassembly-cleaning inspection-water pressure test-simple drying-assembling fire extinguishers-charging carbon dioxide-air tightness test-factory inspection.
The basic process of clean water fire extinguisher maintenance: fire extinguisher entering the factory-inspection before maintenance-fire extinguisher disassembly-cleaning inspection-water pressure test-equipped with fire extinguisher-filled with clean water-air tightness test-factory inspection.
The basic process of dry powder fire extinguisher maintenance: fire extinguisher entering the factory-inspection before maintenance-fire extinguisher disassembly-cleaning inspection-water pressure test-simplified drying-filling dry powder-filling pressure filling fire extinguisher-air tightness test-factory inspection.
Fire fighting equipment plays an important role in fire fighting, whether it is installed in the whole fire fighting engineering system or purchased in some public places or families. When the fire-fighting equipment breaks down, it needs to be repaired.
Maintenance. The purpose of maintenance is to maintain and restore its technical performance and prolong the service life of the equipment.
Fix it and send it to be repaired. That is, the management personnel put forward maintenance requirements according to the needs, organize maintenance in time, and ensure that the equipment is in a good technical state. Strengthen regular inspection. Equipment should be inspected in time to restore its technical performance and recorded. For example, the number of times the descent control device is used. When it reaches the number of uses, it should be maintained in time, and parts need to be replaced in time to ensure the safety of use.
facility management
First, it is placed at a fixed point and cannot be moved at will. The second is to conduct a general survey of fire extinguishers and change their dressing regularly, and regularly check fire-fighting equipment to ensure that it is in good condition. The third is personal management. Check the fire-fighting equipment frequently, and report to the leader immediately if it is lost or damaged, so as to ensure that the management responsibility of fire-fighting equipment is assigned to people. There are three common portable fire extinguishers: portable dry powder fire extinguishers, portable carbon dioxide fire extinguishers and portable halogenated fire extinguishers, among which halogenated fire extinguishers have been discouraged because of their impact on environmental protection. In hotels, restaurants, theaters, hospitals, schools and other public gathering places, ammonium phosphate dry powder fire extinguishers (commonly known as "ABC dry powder fire extinguishers") and carbon dioxide fire extinguishers are mostly used, while sodium bicarbonate dry powder fire extinguishers (commonly known as "BC dry powder fire extinguishers") and carbon dioxide fire extinguishers are mostly used in gas stations and other places. According to the nature that carbon dioxide can neither burn nor support combustion, people have developed various carbon dioxide fire extinguishers, including foam extinguisher, dry powder fire extinguishers, liquid carbon dioxide fire extinguishers and wind fire extinguishers.
equipment selection
1. Water-type, foam, ammonium phosphate dry powder and halon fire extinguishers should be used to put out Class A fires, that is, solid combustion fires. Class A fire: refers to solid material fire. This kind of substance often has the nature of organic matter, and it can generally produce glowing embers when burning. Such as wood, cotton, wool, hemp, paper fire, etc.
2. Dry powder, foam, halon and carbon dioxide fire extinguishers should be used to put out Class B fires with polar soluble solvents (it is worth noting here that chemical foam extinguisher can't put out Class B fires with polar soluble solvents, because chemical foam will be quickly absorbed when it comes into contact with organic solvents, which will make the foam disappear quickly, thus failing to put out the fire. Alcohol, aldehyde, ketone, ether and ester are all polar solvents). ? Class B fire: refers to liquid fire and meltable solid fire. Such as gasoline, kerosene, crude oil, methanol, ethanol, asphalt, etc.
3. Dry powder, halon and carbon dioxide fire extinguishers should be used to extinguish Class C fires, that is, gas burning fires. Class C fire: refers to gas fire. Such as coal steam, natural gas, methane, ethane, etc.
4. Fighting Class D fires, that is, metal burning fires, as far as China is concerned, there is no finalized fire extinguisher product. There are mainly powder graphite fire extinguishers and special dry powder fire extinguishers to put out metal fires abroad. Dry sand or cast iron foam can be used to extinguish the fire when the domestic fire extinguisher and extinguishing agent beads have not been finalized. ? Class d fire: refers to metal fire. Such as potassium, sodium, magnesium, titanium, aluminum-magnesium alloy, etc.
5. To put out Class E fires, dry powder phosphate and halon fire extinguishers should be selected. ? Class E fire: refers to the fire of charged objects. Such as generator room, transformer room, power distribution room, instrument room, computer room, etc. , can't power off or power off in time.
6. Put out class F fires, that is, fires of cooking materials (animal and vegetable oils) in cookers. Avoid water, foam and water-containing substances when extinguishing the fire, and use suffocation to extinguish the fire by isolating oxygen.
As for where to send it for maintenance, some large-scale fire protection projects have after-sales maintenance services. For those who don't know the fire protection industry, you can directly search for fire protection companies and enterprises online, and it is best to choose local ones, which is convenient for timeliness, transportation and installation. It should be noted that whether individuals or units need to repair or fill fire extinguishers, they should pay attention to whether the maintenance unit has the maintenance qualification. Units and enterprises that have not obtained qualifications cannot maintain fire fighting equipment.
The above is the content of fire equipment maintenance, I hope to help everyone!
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