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实例一: 某建筑内客房走廊设自动喷淋闭式系统,由于施工中管线过多,走廊的喷淋系统支干管紧贴空调风管的保温层布置。同时,按《自动喷淋灭火设计规范》(GBJ84-85)要求(以下简称《规范》),配水支管还要采用DN25×15的变径结构,导致变径头下来花洒喷头凸出在吊顶下面,影响整个走廊吊顶高度。能否将DN15短支管焊接在支干管上以取代变径做法而又不违反规范的精神呢?这个问题值得现场施工人员做出技术上的探讨
Example 1: A corridor in a building with automatic sprinkler system closed corridor, due to excessive pipeline construction, corridor sprinkler system branch pipe close to the air-conditioning duct insulation layout. At the same time, according to “Spray Fire Extinguishing Design Code” (GBJ84-85) requirements (hereinafter referred to as “norms”), with the water distribution pipe DN25 × 15 also use the variable structure, leading to adjustable head down sprinkler protruding in the ceiling Below, affect the height of the corridor ceiling. Can DN15 short-branch pipe welding in the branch pipe to replace the reduction method without violating the spirit of the norms? This problem is worth on-site construction workers to make technical discussions