The advantages and problems in the development of fire doors in Henan Province Fire doors are more popular in recent years, so how much do you know about the maintenance, advantages and development of fire doors? The following section will provide you with a comprehensive knowledge of fire doors, so that you can better understand fire doors. supply Refuge bay door Fireproof door is a kind of movable fireproof partition. In addition to the function of ordinary door, it, together with the frame, can meet the requirements of fire resistance stability and integrity within a certain period of time. It has special functions of fire prevention, smoke separation and high temperature blocking. In case of fire, it should have self closing and signal feedback functions. （1） Advantages of fire doors In case of fire, Henan fire doors and windows can be automatically closed through the linkage control system when they are in the open shoulder state, effectively ensuring the reliable closing of fire door maintenance in the fire, so as to achieve its due role in smoke separation and fire resistance. There is no big difference between the maintenance of fire doors and the maintenance of normally closed fire doors in terms of production and basic configuration, but the door closers for the maintenance of normally closed fire doors are replaced with automatic fire release devices that are linked with the automatic fire alarm. At the same time, they can be installed with the control box produced by the manufacturer. Linkage is achieved by installing smoke detectors and smoke detectors on the left and right sides of the maintenance of fire doors, When the smoke detector detects the smoke signal and sends it to the host computer of the automatic fire alarm linkage control system, the linkage control system transmits 24v power to the fire door maintenance releaser to automatically close the fire door for maintenance. The closing or opening status of the fire door maintenance has signals fed back to the alarm host computer or control box. Refuge bay door Price The automatic release device for fire door maintenance developed by Dong Shicong of Chengdu Huili University Research Institute can open the fire door maintenance for 0-180 degrees freely and close it smoothly, completely changing the disadvantage of inconvenient use of the normally closed fire door maintenance closer due to its large opening angle of 90 degrees, and once the fire door is closed for maintenance, the release device will not be reset, It has become a movable fire door maintenance that automatically opens, closes, opens and closes, overcoming the contradiction that normally closed fire doors must be manually closed or cannot be closed after being pushed to a certain limit (greater than 90 degrees) for maintenance; The lesson of blood proves that people who escape from a fire simply cannot close the opened fire door for maintenance due to panic and eagerness to escape.

Relevant requirements for fire protection of the door of Henan Refuge Room What kind of products are qualified when the door of Henan Refuge Room passes the fire protection? Here are some examples: 1. Filling materials: the filling materials must meet the requirements of combustion performance A1 specified in GB8624-2006. At the same time, it meets the requirements of smoke toxicity hazard classification ZA2 specified in GB/T20285-2006. 2. Material thickness: door leaf material shall be no less than 0.8mm, door panel material shall be no less than 0.8mm, door frame plate shall be no less than 1.2mm, hinge plate shall be no less than 3.0mm, reinforcement without screw holes shall be no less than 1.2mm, and reinforcement with screw holes shall be no less than 3.00mm. supply Refuge bay door The door of Henan refuge room 3. The adhesive shall meet the requirements of smoke toxicity hazard classification ZA2 specified in GB/T20285-2006. 4. Dimensional deviation: the height of the door leaf shall not exceed 2mm, the width of the door leaf shall not exceed 2mm, the thickness of the door leaf shall be between - 1mm and+2mm, the height of the clipping opening in the door frame shall not exceed 3mm, the width of the clipping opening in the door frame shall not exceed 2mm, and the width of the side wall of the door frame shall not exceed 2mm. 5. Geometric tolerance: the length difference between the two diagonals of the door leaf shall be less than or equal to 3mm, The distortion of the door leaf shall be less than or equal to 5mm, the curvature of the door leaf in the width direction shall be less than 2%, the curvature of the door leaf in the height direction shall be less than 2%, and the length difference between the two diagonals of the inner cutting opening shall be less than or equal to 3mm. 6. Fit tolerance: the overlap size between Manshan and the door frame is less than or equal to 12mm, the fit clearance between the door leaf and the door frame at the hinge side shall not be greater than the size tolerance specified in the design drawing, and the fit clearance between the door leaf and the door frame at the lock side shall not be greater than the size tolerance specified in the design drawing. Refuge bay door Price The clearance between the door leaf and the upper frame shall be less than or equal to 3mm, the clearance between the double leaf and multi leaf door leaves shall be less than or equal to 3mm, the clearance between the door leaf and the lower frame or the ground shall be less than or equal to 9mm, the clearance between the binding surface of the door leaf and the side of the door frame with hinges shall be less than or equal to 3mm, the clearance between the binding surface of the door leaf and the side of the door frame with locks shall be less than or equal to 3mm, and the clearance between the binding surface of the door leaf and the upper frame of the door frame shall be less than or equal to 3mm, The plane height difference between the door frame and the door leaf is less than or equal to 1mm.

The main difference between Henan fireproof door and anti-theft door is that the anti-theft door has a good anti prying sealing performance. Generally, the door cannot be opened without a key after closing the door. The filler in the door panel is not fireproof material. supply Refuge bay door The security door must be marked with "FAM" and refer to the general technical conditions of security door GB17565-2007. Although the fireproof door is also made of steel, the door plate is filled with fireproof materials, and the thickness of the door plate also has different requirements. The steel door is an ordinary steel door. It also has a certain anti-theft function, but its anti prying performance is relatively poor. This type is common in street processing plants. Only Shanghai and Chengdu have local standards for fire and burglar proof doors, and those in other places can only be called fire entry doors, that is, fire doors that reach the standard of fire rated A or B, and (filled with fire door cores) Class A and B standards are generally divided by fire resistance time. At the same time, it meets the anti prying requirements in the following aspects: the door frame is 1.5 thick, and the steel plates on the front and back of the door leaf are 0.8 thick. The lock has the anti prying function, that is, the lock body has both an oblique locking tongue and a square locking tongue. It has the function of quick opening. It is a good twist type, but it is not allowed to install a heaven and earth lock. Locks and cat eyes shall be provided with fire detection reports. Class B fire doors can be fitted with door collars, while Class A fire doors are not allowed. Refuge bay door Price At the time of acceptance, the merchant must provide fire type approval certificate, fire detection report and metal door detection report. Fire detection report of locks and cat's eyes. The door leaf is opened in the direction of rapid evacuation and cannot be opened inward.

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. supply Refuge bay 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. Refuge bay 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.

The advantages and disadvantages of the products of Henan fire rolling shutter manufacturers The fire rolling shutter is usually located at the poor entrance of the building, which plays a role in fire prevention, heat insulation and smoke dispersion. The fireproof rolling shutter door is a useful time to isolate the fire source when a fire occurs and provide a useful escape for employees. supply Refuge bay door However, the inferior fire rolling shutter door will not only not intercept the fire source, but also increase the fire. Therefore, the advantages and disadvantages of the fire rolling shutter door are also quite important. Henan fire rolling shutter door The rolling shutter door will stop landing when landing to the required height, which is to avoid people who have not had time to escape being trapped inside the rolling shutter door. Refuge bay door Price If the inferior rolling shutter doors were all lowered, the surviving victims would be trapped inside and become unnecessary casualties. Recommended reading: The fire hour and temperature resistance limit of some fire rolling shutter doors are strictly defined in the fire rolling shutter door specification. Therefore, excellent guaranteed fire rolling shutter doors must be used when adopting and purchasing rolling shutter doors.