Configuration and maintenance management of fire e

2022-07-26
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Configuration and maintenance management of building fire extinguishers

fire extinguishers play a vital role in effectively extinguishing initial fires and minimizing fire losses. Relevant statistical data at home and abroad show that more than half of the building fires (about 60% to 80% of the total number of fires) use the first-line fire-fighting equipment - fire extinguishers to complete the fire-fighting task before the fire-fighting system is started or the fire brigade arrives at the fire site. Therefore, the maintenance and management of fire extinguishers in buildings is very important

I. main problems in fire extinguisher configuration

1 Improper configuration of fire extinguishers

some units and individuals are not very clear about the fire risk level of their own units and the fire types of combustibles, resulting in unreasonable configuration of fire extinguishers, often delaying the opportunity to extinguish the fire. For example, class BC dry powder fire extinguishers are equipped in class a fire places, and CO2 fire extinguishers are equipped in places with inflammables such as light metal potassium and sodium, which not only can not play a role in extinguishing fires, but even make the fire more and more extinguished

2. The configuration specification of fire extinguishers is improper, the quantity is insufficient, and the layout is unreasonable

in the configuration specification of fire extinguishers, the configuration basis of each fire extinguisher in different dangerous places is clearly specified (which can be converted into the force value of the most weighing sensor to sharply reduce the filling capacity). The configuration quantity of fire extinguishers is also determined according to the fire-fighting level, protection area, configuration basis and whether there are other fixed fire-fighting facilities in the place. The face fan hood is one of the earliest composite components used in aircraft engines. It is facing more and more challenges and opportunities. They are the minimum standards for places to effectively put out initial fires. However, in some places, the configuration level is too small, the configuration quantity is insufficient or the configuration is unreasonable

3. The training on the use of fire extinguishers by the unit is not in place

the personnel in some places do not understand the fire extinguishing performance of the equipped fire extinguishers and will not use them. Although the initial fire was found in time, the small fire was not controlled because the employees did not use the fire extinguisher correctly

4. The measures for maintenance and management of fire extinguishers are not implemented

many units and individuals mistakenly believe that fire extinguishers are provided for life at one time, so there is no special person to manage and maintain them, resulting in serious fouling of many configured fire extinguishers, insufficient gas storage pressure, failure of fire extinguishing agents, corrosion of tanks, aging and damage of spray hoses, or arbitrary misappropriation by people, resulting in loose pressure gauges, loose connections of heads, blocked and deformed nozzles, etc. When it is in urgent need of use at the time of a fire, not only the fire can not be extinguished, but even because the fire extinguisher belongs to a pressure vessel after all, there may be an explosion injury accident of the fire extinguisher

5. The quality of fire extinguishers is not up to standard

some units and individuals purchase low-quality fire extinguishers or extinguishing agents in order to cope with daily fire inspection or save money without considering the fire extinguishing effect of fire extinguishers. In addition, some distribution and maintenance units unilaterally pursue economic benefits. In order to reduce costs, they choose inferior products that do not meet national standards, reduce the operating procedures during maintenance, fill insufficient quantities, or use the same kind of fire extinguishing agents with different properties to replace filling, which makes these fire extinguishers unable to achieve fire extinguishing effect at all

II. Fire extinguishers should be reasonably configured and management should be strengthened

in order to ensure the reasonable configuration and use of fire extinguishers in buildings, timely and effectively extinguish initial fires and minimize fire losses, the following problems should be solved in time:

1 During the fire protection design of new construction, expansion and reconstruction projects, the architectural design unit shall incorporate the configuration type, specification, quantity and location of fire extinguishers into the design content in accordance with the requirements of the code for design of extinguisher configuration in buildings, and indicate them on the engineering design drawings. The construction unit must equip fire extinguishers in accordance with the design contents that have passed the examination of the public security fire control institution. When purchasing fire extinguishers, other units shall apply to the fire control supervision institution to determine the configuration type and quantity of fire extinguishers according to the nature of the place where the unit uses them

2. The user unit must organize the employees, especially the post holders, to receive training and education on the implementation of trial maintenance management and operation of fire extinguishers in the future, and organize fire-fighting drills in a timely manner to ensure that each employee can correctly maintain and use fire extinguishers. The unit shall also keep records of training and drills

3. The user unit must strengthen the daily management and maintenance of fire extinguishers, establish maintenance management files, specify the maintenance manager, and regularly inspect the maintenance. The unit shall organize or entrust the maintenance unit to conduct functional inspection on all fire extinguishers at least once every 12 months. According to the public safety industry standard "maintenance and scrapping of fire extinguishers", whether the fire extinguishers have been used or not, portable and wheeled 1211, dry powder and carbon dioxide fire extinguishers must be subject to hydrostatic test and other inspections every 2 years from the date of delivery. Portable and wheeled mechanical foam fire extinguishers and portable clean water fire extinguishers must be subject to hydrostatic test and other inspections every 3 years from the date of delivery and every 2 years thereafter, Hydrostatic test and other inspections must be carried out. Portable and wheeled chemical foam fire extinguishers and portable acid-base fire extinguishers must be inspected every two years after the date of delivery. Any fire extinguisher that has been used or failed and cannot be used must be entrusted to the maintenance unit for inspection, replacement of damaged parts and refilling of fire extinguishing agent and driving gas. The unit must strictly implement the fire extinguisher scrapping system. For portable chemical foam and acid-base fire extinguishers that are more than 5 years from the factory date, portable clean water fire extinguishers that are more than 6 years from the factory date, portable dry powder fire extinguishers (cylinder type) and wheeled chemical foam fire extinguishers that are more than 8 years from the factory date, portable pressure storage dry powder fire extinguishers, portable and wheeled 1211 fire extinguishers equipped in necessary places Wheeled dry powder fire extinguishers (gas cylinder type) shall be forcibly scrapped and new fire extinguishers shall be selected if they are more than 10 years from the factory date, portable and wheeled carbon dioxide fire extinguishers, and wheeled pressure storage dry powder fire extinguishers are more than 12 years from the factory date

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