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. supply Steel fireproof window 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 fireproof window Manufacturer 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.

Control Procedure for Internal Quality Management System of Henan Refuge Room Door Manufacturer 1. Purpose To conduct regular internal quality audits to verify the quality activities and related results. Stone composite procedure documents: CCCF-HZFH-02 (A/O) Rules for the Implementation of Compulsory Product Certification, Fire Protection Products, Fire Resistant Components of Buildings and other quality documents, and take corrective measures in a timely manner, So as to make the quality management system operate effectively and ensure that the product consistency meets the requirements of relevant approval rules. 2. The scope is applicable to the audit of our internal quality management system. 3. Responsibilities: The quality director shall lead the internal quality audit work, and the audit team leader shall organize the internal quality audit work under the centralized management of the office, with the cooperation of each department. Henan Refuge Room 4. Procedure (1) Audit frequency The internal quality management system of each department shall be audited at least once a year according to the following procedures. supply Steel fireproof window In case of major quality accident or other special reasons, the quality director shall decide to conduct targeted additional audit. (2) The Audit Planning Office shall propose the "Annual Internal Quality Management System Audit Plan" every year according to the actual situation and importance of audit activities, which shall be approved and implemented by the quality director. (3) Auditors The auditors shall have the qualification of internal auditors and have no direct responsibility for the audited activities, and shall be appointed by the General Manager. For the temporary additional audit, the quality director shall specify the audit team leader and auditors. (4) Before each audit, the office shall prepare the "audit schedule plan", which shall be approved by the person in charge of quality. The audit team leader reviews the documents and assigns tasks to the auditors, who prepare the audit checklist. (5) Audited department and audit schedule; Purpose, scope and basis of audit; Audit content and specific time arrangement; Division of auditors, etc. Steel fireproof window Manufacturer The audit schedule shall be sent by the audit team leader to the audited department one week in advance. After receiving the audit schedule, the audited department can notify the audit team leader in advance if there is any objection. After negotiation, it can make appropriate adjustments.

The installation and installation of Henan fireproof rolling shutter door requires that the fireproof rolling shutter door is widely used in shopping malls, shopping malls and underground garages, but the specific installation steps should not mention laymen. supply Steel fireproof window Even the fireproof rolling shutter door can not be explained in detail. The following is a detailed description of the installation of Henan fireproof rolling shutter door step by step: step 1: install the guide rail. 1. Determine the installation position of the guide rail on both sides of the fireproof rolling shutter door, set out the guide rail reference line with hammer line, and set out the cross line of the fixing bolt of the guide rail connector. The guide rail is not less than 75cm above the ceiling. 2. Punch the holes for fixing expansion bolts of connectors on the wall column with a percussion drill. The spacing between connectors shall not be more than 600mm, and both ends shall be 100mm away from the guide rail opening. Fix several connecting pieces up and down first, stick the guide rail, correct its verticality and spot weld it, and then repeat the verticality of the guide rail after fixing the guide rail. The verticality of each meter shall not exceed 5mm, and the verticality of the whole length shall not exceed 20mm. The depth of the composite curtain embedded in the guide rail (see GBl4102-2005). 3. Install the rest of the connecting pieces. Spot welding shall be adopted between the connecting piece and the guide rail. The spot welding points between each connecting piece and a guide rail shall not be less than 5, and the width of the spot welding shall not be less than 5mm. The welding point shall never be penetrated. Steel fireproof window Manufacturer Stainless steel welding rod shall be used when stainless steel guide rail is used.

The classification and function of Henan fire rolling shutter door The fire rolling shutter door plays the same role as the firewall in horizontal fire separation. It is composed of 13 parts, such as shutter, base plate, guide rail, support, reel, box, control box, door roller, limiter, door header, manual quick release switch device, button switch and safety device, It is generally installed at the position that is inconvenient to be separated by firewall. supply Steel fireproof window 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 fireproof window Manufacturer Fire resisting rolling shutter door is an indispensable fire prevention facility in modern high-rise buildings. In addition to the function of ordinary door, fire resisting door has 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 venues. Classified fire rolling shutter doors 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.

What are the requirements for the opening direction of the door of Henan Refuge Room? Fire doors play an important role in life. The opening direction of fire doors is very important. The Code for Fire Protection Design of Tall Buildings has clearly stipulated that the stairwell should be opened in the direction of evacuation, such as the stairwell should be opened in the direction of the staircase lobby, so as to facilitate the evacuation of people. supply Steel fireproof window In addition, the front room is generally a place of refuge and an evacuation passageway. In case of a fire, positive pressure air supply is required. If it is not installed in the above opening direction, the air pressure may open the fire door, causing fire and smoke leakage. 4. Classification 4.1 According to the number of door leaves, there are steel single fire door and steel double fire door. 4.2 According to the door leaf structure, there are steel fire door with glass lining, steel fire door without glass lining, steel fire door with bright window and steel fire door without bright window. Steel fireproof window Manufacturer According to the fire resistance limit, there are Class A fire doors, Class B fire doors and Class C fire doors.