【 Weak current college 】 building fire system---section II-indoor hydrant system--Power By 【 China power house network 】

This section primarily covers indoor hydrant system setting principles, composition, type, equipment, and layout requirements and water consumption, etc. 　　This part of the learning content should be aware of fire hydrant system settings, note the distinction between high and low level indoor hydrant system in different ways, the fire hydrant system commonly used device usage requirements.　　Fire on the Division of the high and low level buildings fire hydrant system, according to our senior civil architecture design fire protection standard stipulates: building height less than l0 layer of residential and less than 24 other civil construction for low level (lower tier) building, or as a high-rise building. First, set the hydrant water supply system of principles in accordance with our current architectural design fire protection standard, the senior civil building design fire protection standard "and" people's air defense engineering design fire protection standard law, should be set indoor hydrant water supply system of the building as described below. ① Workshop, Depot (but on the fire resistance class 1, class 2 and fuel less Ding, "workshop and warehouse, fireproof grade 3, grade 4 and building volume not exceeding 3000m3 of group d plant and building volume not exceeding 5000m3 's" factory) and research building (kept contact with water can cause burning explosives and inappropriate settings except for water supply and rooms). ② seats more than 800 theatres, cinemas, clubs and more than 200 seat auditorium, Stadium. ③ building volume exceeding 5000m3 station, port and airport buildings and galleries, shops, ward building, clinic building, teaching building and library, etc. ④ more than 7 levels of modular homes and more than 6 storey residential tower house, and the underlying has tonglangshi commercial network of modular homes. ⑤ exceeding 5 layers or volume more than other civil construction 10000m3. ⑥ national heritage conservation units focus-timber or wood structure of ancient architecture. ⑦ all kinds of tall buildings. 　　⑧ area exceeding 300m2 for shopping malls, hospitals, halls, stadiums, rink, dance halls and electronic entertainment Hall of Defense project; the use of the site exceeds 450m2, used as a restaurant, r and d workshop, r and d goods warehouse of Defense project and used as a Hall, a cinema and fire the elevator room of Defense project. II. indoor hydrant system consists of a water gun, hose, fire hydrant, fire protection, plumbing, fire protection, plumbing, fire water tank, water tank, pressure equipment and water, indoor hydrant system.　　When the outdoor water supply network pressure does not meet the requirements of the indoor fire, you should set the fire pump and water tanks.　　3, indoor hydrant system type indoor hydrant system types in accordance with the high-and low-floor building, a small layer of the classification of indoor water hydrant system and high-rise building indoor hydrant system. 1. a small layer of indoor water hydrant system classification ① non-water tanks, no water hydrant water supply system. ② only set tank no pump for fire hydrant system. 　　③ a fire pump and fire water tank of indoor hydrant system. 2. the high-rise construction indoor hydrant system classification ① high-rise building regional concentration of high-voltage, temporary high voltage indoor fire water system. 　　② partition water indoor hydrant system.　　IV. fire hydrant system equipment fire hydrant system equipment: ① ② hose hydrants;; ③ water gun; ④ pump adapter; ⑤ fire cisterns; ⑥ fire water tank; ⑦ fire shutter.　　Details can be found on the equipment and facilities management ". Fifth, fire hydrant system requirements and water consumption 1. layout requirements ① guarantee-location with two pistol of enriched water column (that is, the Jet in dense water gun, with sufficient strength to fight fires in the water column) to reach the Interior of any parts. Only construction height is not higher than the volume not greater than 24m and 5000m3 coffers, may adopt a pistol of enriching the water reaches the indoor any part. Nozzles full water column length should be determined by the calculation, generally should not be less than 7m, but more than six layers of civil architecture, more than four layers of the plant and warehouse, should not be less than 10m. ② Merge system, fire hydrant risers should be set up independently, with combined living water standpipe. ③ low-rise building fire hydrant pipeline diameter not less than 50mm, high-rise building fire hydrant vertical tube diameter not less than 100mm. ④ fire hydrant should be set in clear, easy-to-access location, such as stairs, corridors, elevator room fire, the muzzle is installed at a height above ground for 1.1m, fire hydrant openings should be down or with vertical walls. 　　⑤ the same building you should use the same specification, hydrants, hoses and nozzles. 2. water consumption for indoor fire to use both the number and each of the water gun pistol water consumption of the product. According to statistics, in extinguishing the fire site out a water gun control rate of 40%, while the two water gun control rate of 65%.　　Thus the initial fire General should not be less than two pistol at the outlet, the only building volume more hours to consider a water gun.　　Indoor hydrant system of water consumption and building type, size, height, structural, fire resistance ratings and the nature of production, its value cannot be less than schedule 6, 7 of the schedule (see the equipment and facilities management law). Fire water and life, production of water uniform indoor water supply network, when life, process water reaches the maximum consumption of water, you should still be able to guarantee the supply of adequate fire water.