The role of Henan fire doors in fire protection We often see on the ground of some large or local places that no one is allowed to stand under the fire facilities or shelves are placed. major Steel Grade A fireproof door Then, the primary use of assembling fire doors is that if a fire occurs in a certain place, the rolling shutter door can stop the extension of the fire when it is put down. Usually, the fire doors in such large buildings have automatic central control systems. Once a fire occurs, you can automatically implement a series of behaviors, and the fire doors will automatically lower the fire. The following is the employment process of the automatic control system of the fire door. When a fire occurs, the smoke sensor installed on the roof receives the flag of the smoke and alarms to the central control system. After identification, the control system of the fire center connects the power supply of the fire door in the fire alarm location area, so that the fire shutter in the fire area will fall to the ground at the required rate. When the roller shutter passes to a position about 1.5 meters above the ground, stop the activity, so as to facilitate the evacuation and evacuation of employees on site. After the associated employees withdraw together, the fire door will continue to go down until it is closed. The descending rate of the fire door and the time of stay during the period can be adjusted according to the number of employees. Steel Grade A fireproof door Price It is not only such places that are equipped with fire doors, but also in some staircases, corridors and other places. Since fire is rarely generated and some fire prevention settings are easy to use, the conditions must be inspected regularly by dedicated staff.

How to choose Henan fire door with good quality? Only the brand quality is excellent, can the fire door material reach the high strength durability scale, or reach the high strength sealing condition while having the fire prevention characteristics, or reach the difficult deformation quality under the tropical burn, so as to eliminate the need for fire prevention. major Steel Grade A fireproof door In terms of material selection, it is also advisable to adopt wood and steel materials, and fire door body made of pure materials. The price of different materials is different, and it is possible to reach the standard with both fire prevention talents. Therefore, only manufacturers with strong brand advantages can reach a comfortable level in terms of quality conditions of fire doors, and may adopt high-quality and inexpensive fire doors. Fire doors are divided into wooden fire doors and steel fire doors in shopping malls. Some consumers have a misunderstanding that the fire resistance effect of wooden fire doors will be poor rather than steel. It is necessary to change this poor idea as soon as possible. Only wooden fire doors can pass good fire resistance treatment. Steel Grade A fireproof door Price Its flame retardant effect will be no less than that of steel fire doors. The appearance of wooden fire doors is more elegant than that of steel doors. The assembly is convenient, not to mention the existing flame retardant effect and the elegant use of decorations.

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. major 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.

Henan fire rolling shutter door is generally installed in the place determined by the process. In addition to the firewall, the fire rolling shutter door should be installed in the two fire compartments where there is no firewall. It is generally located at the following parts. (1) Close the evacuation staircase to the walkway; Enclose the elevator hall, the door leading to the front room and the front room leading to the walkway. (2) Divide the fire compartment and control the fire wall and the door on the fire partition in the building area of the compartment. When it is difficult to set firewall or fire door in the building, fire rolling shutter door shall be used instead, and water curtain shall be used for protection. (3) Code (such as GB50045-95 Code for Fire Protection Design of High rise Civil Buildings) or partition door with special requirements for fire and smoke prevention. major Steel Grade A fireproof door For example, the partition doors of equipment rooms (cylinder rooms, foam stations, etc.) attached with fixed fire extinguishing devices in high-rise civil buildings, ventilation, air conditioning rooms, etc. should be Class A fireproof doors; The door on the partition wall of the basement room where people often stay or there are many combustibles shall be Class A fireproof door; Due to limited conditions, it is necessary to arrange oil fired and gas-fired boilers, oil immersed power transformers, high voltage capacitors and switches filled with oil, etc. in high-rise buildings. The doors on the partition walls of special rooms should be Class A fireproof doors. There are also household doors with special requirements that must be fireproof, such as fire control command center, archives room, valuables warehouse, etc., which usually use Class A or Class B fireproof doors. Steel Grade A fireproof door Price The limited area of Henan fire shutter door special grade fire shutter In the use of special grade fire shutter, because it is mainly used in the rapid formation of fire separation areas, and is mostly set in applications with large space, as a visible fire separation device, generally in the production of fire shutter, fire shutter will be painted with a more striking color, It can not only make the fireproof rolling shutter have a better decorative effect after being folded, but also can remind people of the escape route in fire accidents through eye-catching and penetrating colors in the fire compartment, so as to buy time for effective escape.

Maintenance methods and precautions of Henan fireproof door Maintenance methods and precautions of Henan fireproof door: 1. Door leaf and door frame shall be placed horizontally and stacked indoors with backing plates, and the frame and door leaf shall be stacked separately. 2. It is strictly prohibited to store together with acid-base substances. The room should be clean, dry and ventilated. 3. It shall be stored in the room with backup frame and separated from the heat source to avoid thermal deformation. 4. Try to avoid outdoor sunshine for a long time to prevent the fire door from being heated. 5. Keep the indoor air circulation and prevent the fire door from frequent damp. major Steel Grade A fireproof door After splashing with water, wipe it with dry cloth to avoid local expansion. 6. To prevent the fire door from being hit abnormally, it is not advisable to use excessive force or open the door at an excessive angle. 7. It is not allowed to hit the door body with sharp tools and heavy objects to prevent the door body from being sunken, scratched and peeling off the paint film. 8. The concealed bolt of the upper and lower fire door shall not protrude when the door is open, so as not to collide with the door frame, deform or fall off and lose its function. 9. Do not support the door for a long time without closing it, which will damage the door closer and make it lose its function. 10. Do not pull off the fireproof seal, or it will lose its function in case of fire. 11. Check every three months to ensure that the fixing screws of hinges, door locks and door closers are not loose. 12. When the hinge makes abnormal noise, add a few drops of lubricating oil to the hinge shaft. 13. The fire door closer must be replaced in case of oil leakage. Steel Grade A fireproof door Price Then, the Henan Fireproof Doors and Windows Editor summarized the above contents into the following points, and you must remember! Do not always open: it is prohibited to manually keep the normally closed fire doors set on the evacuation walkway, the front room of the smoke proof staircase or the shared front room open during the use process to become "normally open" fire doors. In case of a fire, such "normally open" fire doors can not prevent smoke and fire; Regular inspection: frequently check the integrity of the fire door, check whether the door closer and sequencer are in good use, whether the fire door can be closed automatically in order, and whether the screws on the hinge and hinge are loose. If damaged, immediately organize maintenance; Decoration: one-sided pursuit of decoration effect, canceling the fire door frame and setting only the door pocket made of ordinary wood, replacing the original frame of the door leaf with other materials, and adding decorative surface layer in a large range, thus damaging the fire retardant coating and failing to achieve fire retardant effect; Regular test: the normally open fire door shall be tested regularly to check whether its self closing control system, door closer, sequencer, release switch and other aspects are easy to use, whether it can effectively perform the self closing function in case of fire, and at the same time, it is necessary to resolutely prevent the random stacking of articles near the normally open fire door.