开云游戏

Overview of fire doors: 　　

Fire door refers to the door that can meet the requirements of fire resistance stability, integrity and heat insulation in a certain period of time. It is located in the fire compartment, evacuation stairwells, vertical shaft and other fire-resistant partition. A: yes, sir
Insulated fire doors ( class a )
Fire doors that meet both fire integrity and thermal insulation requirements within a specified time. A: yes, sir
Partially insulated fire doors ( class b )
Fire doors that meet the requirements for fire integrity and heat insulation within a specified time of 0.50 h or more and meet the requirements for fire integrity within a specified time of 0.50 h or more. A: yes, sir
Non - insulated fire doors ( class c )
Fire doors that meet fire integrity requirements within a specified period of time.
Fire door fire insulation scheme:
Insulated fire doors ( class a ) and divided into class a, class b, class c three. Stone refractory technology according to GB 12955 - 2008 " fire door" regulation
Class c fire door core plate: fire resistance and heat insulation property ≥ 0.50 h, fire resistance integrity ≥ 0.50 h; 10 mm ceramic fiber board is used. A: yes, sir
Class b fire door core plate: fire resistance and heat insulation property ≥ 1.00 h, fire integrity ≥ 1.00 h; A 20 mm ceramic fiber board was used. 
Class a fire door core plate: fire resistance and heat insulation property ≥ 1.50 h, fire integrity ≥ 1.50 h; A 30 mm ceramic fiber board was used. 
At present, some fire door manufacturers adopt ceramic fiber board + ceramic fiber blanket composite as the core plate of the fire door, which not only meets the requirements of fire resistance and heat insulation, but also reduces the production cost. 2, the fire door in use process, under the influence of years of gravity will have different degrees of sag. 
A customer of Jinshi refractory adopts ceramic fiber board 10 mm + ceramic fiber blanket 10 mm composite as the core plate of fire door, and the fire door successfully passes the corresponding fire resistance heat insulation and fire integrity test.
Fire prevention and heat insulation scheme for elevator fire doors and cabinets;
In 2012, stone fire resistance, according to the national standard GB / t 27903 - 2011 " elevator door fire resistance test complete raw, heat insulation and heat flux measurement method", the elevator fire door design scheme → scheme demonstration → experimental test → according to the experimental results to improve the design scheme → again demonstrate the scheme and continue the experiment → cycle, after five scheme improvement, four experimental verification finally took out to the satisfaction of baideshisen hardware and electrical equipment ( Shenzhen ) co., ltd., and signed a long-term cooperation agreement.
One scheme of elevator fire door: 20 mm secondary calcination inorganic high aluminum plate + 35 mm uncoated aluminum foil ceramic fiber composite insulation board staggered joint + 16 mm aerogel composite fiber felt + 1 layer of 6 mm aerogel composite fiber felt covered on the outer surface of iron sheet.