Analysis on the influence of fire resistance time of henan fire rolling shutter door on the coming of fire hazard in building fire protection design, ensuring safe evacuation of personnel is the primary premise of fire protection design, and the important standard of fire safety evacuation is time. high quality Steel Grade A fireproof door China has made detailed regulations on the setting of evacuation width, evacuation distance, various fire-fighting facilities and other elements in various fire technical specifications. These are hard standards for fire design and review, but in fact, these requirements are not isolated from each other and created out of thin air. They all serve to ensure the safe evacuation of people, The setting requirements in the specification mostly come from the calculation of the fire safety evacuation time, so understanding the fire safety evacuation time is the basis and premise for the design and installation of fire rolling shutter doors. The so-called safe evacuation of Henan fire shutter door refers to the evacuation of people to a safe area before the fire develops to threaten the safety of people, that is, to make the safe evacuation time less than the time of danger, which is the benchmark of evacuation design, and all other design elements should serve this goal. The main factors that can cause danger to people in fire are high temperature, toxic smoke, building structure collapse and so on. The high temperature is mainly caused by thermal convection and radiation. When the air temperature reaches 100 ℃, ordinary people can only endure it for more than 10 minutes. When the temperature exceeds 200 ℃, people will die within 5 minutes. The harmful gases in the smoke mainly include carbon monoxide, carbon dioxide, formaldehyde, acetaldehyde, hydrogen cyanide, etc. The common carbon monoxide content in the air as long as 1%, people will lose consciousness after breathing several times, which will lead to death. At present, a large number of polyethylene, polystyrene and other building materials will produce toxic smoke after combustion. Smoke will not only cause poisoning, but also reduce the visibility of people in dense smoke due to the dimming effect of smoke. When the visibility is less than 0.5m, the moving speed of people is equivalent to the walking speed when they lose their vision. Steel Grade A fireproof door Price Henan fireproof rolling shutter door usually has a fire resistance limit much higher than the time of smoke spreading and flowing, but if flammable and combustible decoration materials are used in the evacuation passageway, it may also burn rapidly.

What problems should be paid attention to during the installation of Henan fire door? Henan fire door manufacturers should know that the use performance of fire doors comes from the quality problems of the fire doors themselves on the one hand, and the installation of fire doors on the other hand. If the fire doors are not installed according to the relevant standards, then their fire performance may be affected in the use process. high quality Steel Grade A fireproof door Here are some precautions for installation. 1. When installing door frames and leaves, attention shall be paid to the opening direction of the door, which must be opened in the direction of evacuation. 2. Stealing work and materials is strictly prohibited. Some construction units speed up construction. There are serious problems of cutting work and materials when installing fire doors. Some do not install door closers or sequencers; Some fire doors should be equipped with 3 hinges, and they only have 2 or 1 hinge; Some fireproof door hinges with 4 screw holes are only installed with 2 screws, reducing the fixing strength; Some even install non fireproof hardware fittings and door locks; Some do not install fireproof sealing strips; Some fireproof doors are equipped with ordinary glass or fireproof glass that exceeds the specified area, etc. It is important to know that these jerry building will be reflected in the use of fireproof doors later. Steel Grade A fireproof door Price Fire doors have special functions of fire prevention, smoke separation, fire spread suppression and evacuation protection, so they should have good airtightness. Therefore, attention should be paid to some details or sealing problems during installation.

Precautions for Henan fire doors There are many types of fire doors, such as glazed fire doors, stainless steel fire doors, and ordinary steel fire doors. However, the installation methods are basically the same, depending on the site conditions. Some common installation parameters must be noted. 1、 The fire door shall be installed according to the type of fire door used, and the appropriate installation method shall be adopted. 2、 The door frame of the fire door can be fixed with the wall by expansion bolts, or iron parts can be embedded at the opening when building the wall, and welded firmly with the door frame connector during installation. 3、 No matter what kind of connection mode is used between the door frame and the wall, there should be no less than 3 anchor points on each side, and they should be firmly connected. 4、 When installing the fire door, it should be aligned and hoisted. After the size is appropriate, it should be temporarily fixed, corrected and adjusted. The connection and anchorage can be carried out after there is no error. 5、 The sliding door shall be flexible after installation; The side hung door is easy to open and tight and firm to close. 6、 Door closers must be installed on fire doors, and sequencers must be installed on opposite doors. 7、 Hardware accessories such as handle and fire lock on the fire door must be complete; 8、 It is required that the clearance from the ground plane shall not be greater than 5mm. Henan fire door steel fire door is moderate in price, but it is heavy, hard to open, monotonous in style, and not beautiful enough, so it is mostly used in industrial buildings and general grade civil buildings, or parts of buildings that have low aesthetic requirements and low pedestrian flow at ordinary times (such as machine rooms, garages, etc.). high quality Steel Grade A fireproof door On the contrary, wood fire doors have light deadweight, flexible opening and closing, good decorative appearance and many patterns, but their prices are high, and they are mostly used in middle and high grade civil buildings or important occasions in buildings. Generally, the applicable size of large opening for each fireproof door is about 3.3m high, 1.1m wide for single leaf and 3.0m wide for double leaf. In engineering design, in addition to setting fire doors in strict accordance with the occasions, positions, widths, grades and opening directions required by the specifications, attention should also be paid to the fact that fire doors are generally set on the evacuation path (such as stairwells, antechambers, walkways, etc.), and that a little carelessness in the design of building plane details may cause the door leaf to block the evacuation path and reduce its effective width after opening, Violation of basic requirements for personnel evacuation. Steel Grade A fireproof door Price This phenomenon is particularly prominent at the turning point of the evacuation path and in high-rise residential buildings, which should be paid attention to and avoided.

Why is Henan fire rolling shutter an indispensable facility? Why is fire rolling shutter an indispensable facility. high quality Steel Grade A fireproof door The types of fire rolling shutter doors in Henan mainly include composite steel fire rolling shutter (fire and smoke prevention), inorganic super grade fire rolling shutter (double track double shutter), steel composite water spray steam fog fire rolling shutter, steel composite lateral fire rolling shutter, steel composite horizontal fire rolling shutter, inorganic super grade folding fire rolling shutter and fire rolling shutter with various doors. The fireproof rolling shutter door, as well as the firewall, functions as a horizontal fireproof partition. It is composed of 13 parts, such as shutter, base plate, guide rail, support, reel, box, control box, door rolling machine, limiter, door header, manual quick release switch device, button switch and safety device, and is generally installed at the position that is not convenient for firewall separation. For example, open elevator halls, escalators, wide business halls of department stores, exhibition halls of exhibition buildings, and parts of buildings with large openings that cannot use fireproof doors and windows. Fire resisting rolling shutter door has been widely used in building engineering to make fire separation. Steel Grade A fireproof door Price Henan fireproof rolling shutter door is an indispensable fire prevention facility in modern high-rise buildings. In addition to the function of ordinary door, the fireproof door has the special functions of fire prevention, smoke separation, suppression of fire spread, and protection of personnel evacuation. It is widely used in high-rise buildings, large shopping malls and other crowded places.

The function effect of Henan fireproof rolling shutter door The fireproof rolling shutter door is based on the steel rolling shutter, the transmission parts are modified, equipped with fireproof electrical appliances and other equipment, so as to achieve the fireproof function: the fireproof motor is controlled by the fireproof electric cabinet, and the roller is driven by the speed change device to make the rolling shutter door open and close. In case of power failure, the manual handle on the fireproof motor can also be used to achieve manual operation. high quality Steel Grade A fireproof door At the relative movement of the machinery, the coupling is used to replace the sprocket drive, and the friction in the track is inlaid with copper plate or nylon. Steel Grade A fireproof door Price It is suitable for the use or storage of combustible gases, volatile chemicals and other high ignition materials in factories and warehouses where there is or may be an explosion of fire hazards. 1. The integrated bus is used internally, and the data transmission is reliable and fast. 2. It has the functions of phase sequence automatic detection, correction and phase loss protection. The standby power of main power supply can be switched automatically (with standby power). 3. With rich reserved interfaces, it can be linked with the fire control center. 4. All electronic learning and memory limit, no matter the upper limit or lower limit positioning will never change. 5. It adopts advanced microcomputer processor technology, which is stable and reliable, without upper limit height range 6. It has smoke and temperature sensing signal synchronization and step by step detection function. 7. The setting of operating parameters is simple, convenient and accurate. 8. It has the function of manual priority escape. In case of three-phase power or main power failure, the controller can automatically lower the roller shutter through the quick release device to close the roller shutter.

Henan fire door technical requirements Wooden fire door is a door with certain fire resistance performance, which is made of fire-resistant wood or fire-resistant wood products as door frame, door leaf framework, door leaf panel. If the door leaf is filled with materials, it is filled with fire insulation materials that are non-toxic and harmless to human body, and is equipped with fire hardware accessories. high quality Steel Grade A fireproof door The overlapping size of door leaf and door frame shall not be less than 12mm; The fit clearance between the door leaf and the hinge side of the door frame shall not be greater than the dimensional tolerance specified in the design drawings; The fit clearance between the door leaf and the locked side of the door frame shall not be greater than the dimensional tolerance specified in the design drawings; The clearance between the door leaf and the upper frame shall not be greater than 3mm; The gap between two or more door leaves shall not be greater than 3mm; The movable clearance between the door leaf and the lower frame or ground shall not be greater than 9mm; The gap between the door leaf and the door frame binding surface: the gap between the door leaf and the binding surface of the door frame on the hinge side, the lock side and the upper frame shall not be greater than 3mm; The plane height difference between the door leaf and the door frame: On the opening surface of the fire door, the plane height difference between the door frame and the door leaf of Tianjin Telescopic Barcode Reader should not be greater than 1mm. Wooden fireproof door refers to the door frame, door leaf framework and door leaf panel made of wood or wood products, and the fire resistance limit of the door reaches the specified value. Some small deviations between wooden fireproof doors cannot be wrong. Maybe it is a small detail problem, which may fail to meet the standard. Steel Grade A fireproof door Price The materials used for Henan fire door are compared first. The fire door has a simple structure and is mainly composed of four parts: door closer, door panel materials (including 06 and 08), door frame materials, and fire panels. Grade A fireproof door is generally made of 08 material with good quality. Its normal service life is 5-8 years. The iron material of the door panel is thick. For the fireproof door with the same thickness, the weight of Grade A fireproof door is greater than that of Grade B.