What is the difference between the normally open and normally closed fire doors of Henan fire doors? The differences between the normally open and normally closed fire doors are as follows: 1. Different meanings. The normally open fire doors are usually open, and they are automatically closed by the control system only in case of fire. It is generally used in the passage or corridor of public places. supply fire-proof wooden door Normally closed fire doors are closed under normal conditions and in case of fire, and need to be pushed open when someone walks around, so as to prevent smoke and fire and prevent the spread of fire. 2. The price is different, and the price of the normally open fire door is higher, and the system is strong. The price of normally closed fire doors is relatively low. Henan fireproof doors and windows 3. The composition is different. The normally open fireproof door consists of door leaf, door frame, door closer, sealing strip, release switch and other parts. The normally closed fireproof door is equipped with sequencer in addition to the above parts. 4. The control mode is different. The normally open fire door is controlled by the fire door release switch. The normally closed fire door does not need to be set with electric automatic control. It is mainly closed by the door closer and sequencer, that is, mechanical. Precautions for Henan fire door fire door 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. Henan fireproof doors and windows 4. When installing the fireproof door, it should be aligned and hoisted. After the size is appropriate, it should be temporarily fixed, corrected and adjusted, and then it can be connected and anchored. 5. The sliding door shall be flexible after installation; The side hung door is easy to open and tight and firm to close. fire-proof wooden door Price Henan fireproof doors and windows 6. Door closers must be installed on fireproof doors, and sequencers must be installed on opposite doors. 7. The handle, fire lock and other hardware accessories on the fire door must be complete. 8. It is required that the clearance from the ground plane shall not be greater than 5mm.

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.). supply fire-proof wooden 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. fire-proof wooden 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.

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. supply fire-proof wooden 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. fire-proof wooden 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 is an important part of fire fighting equipment. Fire door is an important part of fire fighting equipment and an important part of social fire prevention. Therefore, the quality and use of fire door is the key to the success of fire prevention. supply fire-proof wooden door The fire resistance limit of Class C fireproof door is 0.6h) 1. The inspection door on the wall of equipment tube well, ventilation duct and garbage duct shall be Class C fireproof door. 2. The front door of the garbage way shall be Class C fireproof door. 3. When the cable shaft and pipe shaft are set in the front room of the smoke proof staircase and the shared front room, the inspection door on the shaft wall shall be Class C fireproof door. 4. The door connecting the substation and distribution substation should be Class C fireproof door. The door directly leading to the outdoor of the substation shall be Class C fireproof door. 5. The cable well and pipe well shall be separated from each other every 2~3 floors by incombustible materials equivalent to the fire resistance limit of the floor. The inspection door on the shaft wall shall be Class C fire door. 6. The garbage hopper shall be made of incombustible and corrosion-resistant materials and can be closed and sealed by itself; Garbage hoppers of high-rise buildings and super high-rise buildings shall be located in the front room of the garbage chute, which shall be equipped with Class C fireproof doors. 7. The telecommunication room shall adopt outward opening Class C fireproof door with a width of more than 0.7m. 8. The oxygen busbar room with the oxygen delivery capacity not exceeding 60m3/h can be set in the user's workshop with the fire resistance rating not lower than Grade III and close to the external wall. The wall with the height of 2.5m and the fire resistance rating not lower than 1.5h and the Grade C fire door should be used to separate it from other parts of the workshop. 9. The partition wall of the collection warehouse and exhibition room shall be non combustible. The compartments in the fire compartment shall be separated by partition walls with a fire resistance rating of not less than 3h and Class B fire doors. The enclosure structure of closed shaft shall be non combustible and Class C fireproof door. 10. The fire resistance limit of partition walls between production rooms with explosion risk shall not be less than 1.5h. fire-proof wooden door Price The door is Class C fireproof door. 11. When the oxygen generation station building or liquid oxygen gasification station building and oxygen filling station building are arranged in the same building, the noncombustible partition wall with a fire resistance rating of not less than 1.5h and Class C fire door shall be used, and they shall be connected through the walkway. 12. The doors on the partition walls between the oxygen compressor room and the bottle filling room, as well as the purification room, the oxygen storage bag room, the oxygen storage tank room, the liquid oxygen storage tank room and other rooms shall be Class C fireproof doors.

Henan fireproof rolling shutter door maintenance common faults and treatment methods The fireproof rolling shutter door is constantly applied to large supermarkets, shopping malls, underground garages, workshops and other crowded places. It is inevitable that there will be some small problems that need to be solved. I summarize a few points for your reference. 1、 The fire shutter door does not act: first, check the power supply to see if the power supply air switch of the fire shutter door has power. If there is no power, check the power supply. If there is power, the power indicator of the roller shutter control box should be green at this time. supply fire-proof wooden door If the indicator light is not on, then we should check whether the transformer in the control box (the resistance of the transformer is 270 ohms) is burned out. If the power indicator flashes green, it indicates that the power supply may be out of phase. If the power supply is not out of phase, it may be that the standby power board of the control box is burned out; It is also possible that both the power board and the standby power board are burned out. 2、 Henan fire shutter door power supply air switch cannot be pushed up: when delivering the gate, the air switch cannot be pushed up, first check whether there is a problem with the standby board, and the resistance of the output line of the standby board is about 300 ohms. In case of open circuit or short circuit, check whether the motor brake is burnt or whether the spare board is burnt. 3、 The operation button does not work properly: you should first press the Stop key, then press the Reset key, and then press the Up and Down keys. 4、 The indicator lights of the power control box or button panel are all on: at this time, first check whether there is a short circuit in the button line or a button may be pressed to death. If the above phenomenon does not exist, it may be that the chip on the power main board is broken, and then replace the chip. fire-proof wooden door Price Pay attention to wearing the clothes in reverse (that is, the opening faces the opening).

The operation method of Henan fire doors is recognized by the laboratory of the Ministry of Economy of the Ministry of Fire Protection. According to the new version of the standard for fire doors GB_12955-2008 implemented on January 1, 2009, those who pass the fire resistance test method of fire doors and obtain the registration certificate and authorization mark issued by the Bureau of Standards and Inspection of the Ministry of Economy are called fire doors. supply fire-proof wooden door The fire door defined in the American NFPA and IBC codes is "the combination of any fire door leaf, door frame, hardware and other accessories that can jointly provide a certain degree of fire protection at the opening." Operation method Henan fire door widely carries out publicity and education on the use, maintenance and management of fire prevention facilities within the jurisdiction of the fire department in charge, Efforts should be made to improve people's awareness of fire protection and self-protection; Extensive publicity, education and training on fire protection and umbrella protection knowledge shall be carried out for units installed with fire door maintenance, so as to make every employee understand the basic knowledge of the use, maintenance and management of fire door maintenance, and consciously participate in the maintenance and management of the Gate of Life, so as to keep them in a state of combat readiness at all times; The fire door maintenance purpose, function and good use status and basic requirements for use shall be posted on the fire door maintenance, and the words "normally closed fire door maintenance, please close at any time" shall be written on the conspicuous position of the normally closed fire door maintenance, so that customers and the masses can understand the basic knowledge of fire door maintenance. fire-proof wooden door Price Carry out publicity activities to protect fire-fighting facilities and equipment, and mobilize everyone to participate in the protection of fire-fighting facilities such as fire door maintenance.