Fire door refers to the door that can meet the requirements of fire stability, integrity and heat insulation, but in real life, many fire doors do not have a greater function of fire prevention. So how should the function of the fire door to play to the greater? The following by the fire door manufacturers to tell you.

1, in the closed staircase, smoke staircase, fire elevator and its front room and other personnel frequent access to the fire door, should be based on the use of the building function, the nature of the fire door at ordinary times to determine the opening and closing state. For example, normally closed fire doors can be set for residential buildings, and normally open fire doors should be set for public buildings and factories. Specifically, normally open fire doors should be used for personnel passing through during normal use, and normally closed fire doors should be used for personnel passing through during normal use.

Article 7.5.2 of the "Construction Regulations" stipulates that normally open fire doors should be able to close on their own in case of fire and should have the function of signal feedback. In fact, the normally closed fire door should also have the same signal feedback function as the normally open fire door, and the feedback signal of the normally closed fire door should also be able to reflect whether the closing sequence of the double doors is normal, so that the personnel on duty in the fire control room can timely grasp the opening and closing conditions of the fire door, timely handle the fire door with poor closing conditions, and repair the fire door with similar door closer damage and hinge loosening, ensure the fire prevention and smoke prevention efficiency of the normally closed fire door.

3. There is no clear performance requirement for the sequencer of the double fire door in the industry standard. It is recommended to increase the specific and quantitative standards such as the installation site, action mode, reaction time, and number of actions of the sequencer in the industry standard, so as to make it a practical and specific provision.

4. According to the specific requirements of no fire door closer product quality standard, no installation method and firmness in the industry standard, it is suggested to increase the comparison table between the door closer tension and the door quality in the industry standard to standardize the use specification of the door closer; Increase the installation firmness standard of the door closer, specify the specific action times of the door closer, so as to ensure that the fire door remains in a good closed state for a long time; Increase the opening angle requirements of the door closer, break through the 90 ° stereotypes determined by the manufacturer itself, so that the fire door can meet the needs of use and market needs.

5, the selection of fireproof hinge, should be used to separate, removable hinge, so that when installing the fire door, you can be fixed firmly, and then directly insert the door leaf into the door frame.

6. When fixing hinges and door closers, the current fixing method with wood screws should be changed. Holes for fixing hinges should be reserved on the door frame and door leaf, and then relevant screws and nuts should be matched. In this way, standardized operations can be carried out according to the reserved holes when the installation site is reached. Screws and nuts on the door leaf should also be equipped with corresponding heat insulation decorations.

7, to determine the use of double, multi-fan fire door, should be reserved in the construction process of signal feedback line, fire door installation unit should contact with the construction unit, building fire engineering construction unit as soon as possible, reserved lines and control modules, in order to facilitate the installation and commissioning of fire doors.