【 Weak current College 】 on fire doors in building the importance and ongoing management in

Fire door refers to a certain period of time to meet fire resistance stability, integrity and insulation requirements, primarily for building fire partitions firewall openings, stairs entrance hallway, pipes, evacuation, etc., the ordinary wellhead to staff, in the event of a fire can serve to prevent the spread of flame and prevent combustion flue gas flow, and in the air distribution system work when sealing effect. Fire door was applied to the boating industry, in recent years, with the increase in its high-rise buildings in the building of the importance of the more prominent, is the most important buildings in fire protection measures. Recent domestic fires frequent especially in some places, personnel are crowded, it is precisely because the fire exits or security problems with the export of fire doors and caused a bunch of dead farm injuries.

First, the functional classification of fire door

Are marketing and use of buildings fire doors (1) from the material can be divided into: ① ② steel fire doors wooden fire door ③ wooden fire door lining plate (to meet security requirements into the apartment). Class a fire resistance time into from (refractory 72 minutes); b (refractory 54 minutes); c (refractory 36 minutes). (2) open: changbishi normally opened fire doors and fire doors. Changbishi fire door is mainly used in building evacuation channels, and unit managers require these fire doors usually have anti-theft security role, thus locking the door needs, an emergency door ensures that the direction to the evacuation as evacuation channel open. There are security requirements of the fire door control systems rely primarily on push valve type electromagnetic lock and controller, push the valve type electromagnetic lock usually will normally closed fire door lock, with the key you can access in order to meet the security requirements of fire can fire alarm module automatically opened by fire, and fire door room adjacent to the emergency button to manually lock, door direction is the direction to ensure that evacuation of evacuation evacuation and lock signal feedback to wired. There is a barrier of pyrotechnics normally open fire door control system is driven by magnetic suction and controller, magnetic door suck, usually will always fire door sucked, flow can be normal, fire alarm module can automatically break the door, or through a fire room and fire door emergency button or magnetic door, fireproof door in the door closer, automatic door closing, to cut off fireworks, and close the door signal feedback to wired.

Fire door of internal padding material: wool, cotton aluminosilicate fibres, perlite, Silicon, calcium, fire Board, etc. Fire door main accessories have smoke (separated smoke effect), door closer (keep the door closed, such as in a normal open fires quickly closes the door leaf), Shun-bit converter (in order to close the double door door leaf); General accessories fire lock, push rod locks, hinges, fire resistant glass, etc.

Second, the use of fire resistant doors

At present there are more than 1000 companies producing and selling fire door, market capacity reaches saturation level, so to some extent, some manufacturers have adopted malignant price approach to fight for market share, resulting in a decline in the quality of products, and to top it all to honeycomb paper alternative fire filled material, fireproof performance far below national standards, from 2006 the State began to fire door market sternly anti-counterfeiting, which to some extent, maintained a market order and improve product quality, but situation still not optimistic, the dumping of cheap low quality from time to time, at the same time to fire doors of widely from large residential area (thousands of worth mentioning) to industrial buildings, shopping malls, entertainment (a few worth mentioning is the door), to the fire department fire inspection work and day-to-day management creates tremendous pressure.

III day-to-day management of fire door

(1) view the building using fire door grade and installation parts are consistent with the architectural design of the fire code requirements. For example, the firewall must open the doors should be of class a fire door; attached in the building fire control rooms, fixed fire extinguishing systems for equipment room, the fire pump housing and ventilation air conditioning machine wall opening door on because class b fire door, high-rise buildings (warehouse), personnel are crowded places of public buildings, people-intensive multiplayer r workshop set closed staircase leading to the stairs of the door should be class b fire door; cable well, well well, exhaust pipes, exhaust road, trash and other vertical pipe shaft inspection door on creation because class c fire doors.

(2) pursuant to the GB12955-1991 steel fire doors General technical specifications "," GB14101-1993 wooden fire door General technical conditions "and" fire products on-site examination determination rule GA588-2005 "on fire doors is qualified for judging.

The current domestic production and sales of fire door, first to the Ministry of public security fire product conformity assessment Center presented the type approval certificate and obtain product ID (also known as the fire product identity) management system. This system is effective in combating the production and selling behaviour, on the Fire Department of law enforcement has played a very big help, see the specific test method (www.cccf.com.cn on strict implementation of fire product ID card management system for fire-fighting product tracking management system application work notice).

The scene on the quality of fire door, mainly as a manufacturer-supplied corresponds to the product of the inspection report, if inconsistent (such as door leaf thickness, filling materials, glass thickness and width of the door frame wall, hardware accessories and described in the report on product performance and material) to determine the number of products are no quality problems, such as inconsistency can seal-like censorship to the fixed fire extinguishing systems and fire-resistant components for quality supervision and inspection center, national fire building materials quality supervision and inspection Center for combustion testing. Special emphasis on product consistency also includes product appearance and dimensions, such as: does more than testing report maximum perimeter dimension, whether it is slave-style, equipped with door mirror is a fire-type, and issue the corresponding type approval certificate, if inconsistent with or without this type of test reports can be directly determined. Discovery does not meet the product consistency or no market access card, product type inspection qualified reports of product, it will be based on the People's Republic of China fire protection law "article 44 and the Chinese peopleRepublic of product quality law "article 49 to the dealer or manufacturer, respectively.

(3) the daily supervision of destruction fire door and the phenomenon of using performance are: A dismantling of the door closer. Usually the installation of fire doors in stairway and will feel due to the door closer is not convenient, in order to achieve "normally open" convenience then door closer. B free to replace the door lock. Some units in use will be used as a security door fire doors, for security reasons, so replace themselves as more solid door lock. C unauthorized repairs. Some units that installation of fire door does not impede the appearance and overall coordination, without authorization, on the fire door decoration, painted different coatings even posted decoration materials. D remove the fire doors and seal, etc. Due to various reasons leading to the door broken, cracked, sealing strip to strip even more direct will fire door removed.

For these situations, we want to pass on the fire door capabilities, knowledge, advocacy, allowing owners to understand the fire doors in the buildings of importance and how to distinguish fake and inferior product quality, and improving people's importance to the fire door and the role of awareness, enhancing our day-to-day supervision of great help to significantly reduce the convenience of the destructive fire door or figure cheap buy fake, to fire and leave the daily management of fire behavior.