国产剧情探花高颜值在线,91av在线播放观看国产,强壮公弄得我次次高潮小说,国产在线不卡人成人小说,久久亚洲精品成人?v观看,国产乱女乱子视频在线播放,024亚洲国产乱人视频,国产精品福利影院,欧美精品v国产在线观看,高清少妇三级亚洲

　　在現(xiàn)代建筑中，通風(fēng)管的防火包裹受到人們的關(guān)注。之前常用的是鍍鋅鐵皮風(fēng)管，但是無(wú)法耐火，所以很多人開(kāi)始采用防火包裹的風(fēng)管，有效提高了防排煙系統(tǒng)的防火耐火極限，保證了居民的建筑安全。那么，通風(fēng)管防火包裹是怎么做的？

　　In modern architecture, the fireproof wrapping of ventilation ducts has attracted people's attention. Previously, galvanized iron sheet air ducts were commonly used, but they were not fire-resistant. Therefore, many people began to use fire-resistant wrapped air ducts, effectively improving the fire resistance limit of the smoke exhaust system and ensuring the safety of residents' buildings. So, how is the fireproof package for ventilation pipes made?

　　通風(fēng)管防火包裹具有不燃、質(zhì)輕、強(qiáng)度高等特點(diǎn)，防火包裹適用于電力電纜的防火保護(hù)，也適用于制作耐火風(fēng)管、防火吊頂、鋼結(jié)構(gòu)防火包覆。中央空調(diào)系統(tǒng)中，如果通風(fēng)管是不耐火的材料，容易燃燒或者遇高溫變形，在明火的環(huán)境下很有可能會(huì)發(fā)生火災(zāi)，所以通風(fēng)管有必要做防火包裹。

　　Ventilation duct fireproof wrapping has the characteristics of non flammability, light weight, and high strength. Fireproof wrapping is suitable for fire protection of power cables, as well as for making fire-resistant air ducts, fireproof ceilings, and steel structure fireproof wrapping. In the central air conditioning system, if the ventilation ducts are made of non fire-resistant materials, they are prone to combustion or deformation when exposed to high temperatures, and there is a high possibility of fire in an open flame environment. Therefore, it is necessary to wrap the ventilation ducts with fire-resistant materials.

　　通風(fēng)管防火包裹的材料一般是玻璃棉、巖棉。玻璃棉是一種纖維結(jié)構(gòu)材料，達(dá)到A級(jí)不燃的防火建材標(biāo)準(zhǔn)。巖棉是由玄武巖高溫融化制成，可耐高溫，防火隔熱性能好，滿足A級(jí)不燃的防火要求。相關(guān)的建筑防煙排煙系統(tǒng)技術(shù)標(biāo)準(zhǔn)是為了合理設(shè)計(jì)建筑防煙、排煙系統(tǒng)，保證施工質(zhì)量，規(guī)范驗(yàn)收和維護(hù)管理，這樣可以減少火災(zāi)危害，保護(hù)人身和財(cái)產(chǎn)安全！

　　The materials for fireproof wrapping of ventilation ducts are generally glass wool and rock wool. Glass wool is a fiber structural material that meets the A-level non combustible fire-resistant building material standard. Rock wool is made by melting basalt at high temperatures, which can withstand high temperatures, has good fire and thermal insulation properties, and meets the requirements of Class A non combustible fire protection. The relevant technical standards for building smoke prevention and exhaust systems are aimed at the rational design of building smoke prevention and exhaust systems, ensuring construction quality, standardizing acceptance and maintenance management, which can reduce fire hazards and protect personal and property safety!

　　通風(fēng)管做防火包裹時(shí)，如果采用外包包覆，防火板厚度在8-10mm之間，耐火1小時(shí)的防火板為8mm，耐火2小時(shí)的防火板為10mm。如果采用風(fēng)管+巖棉+防火板，需要8-9mm的耐火風(fēng)管板材進(jìn)行包覆處理，中間再填充尤特森巖棉，這樣通風(fēng)管的耐火性能可以提升至1-3小時(shí)。

　　When making fireproof wrapping for ventilation ducts, if external wrapping is used, the thickness of the fireproof board should be between 8-10mm. The fireproof board that can withstand fire for 1 hour is 8mm, and the fireproof board that can withstand fire for 2 hours is 10mm. If air ducts, rock wool, and fireproof boards are used, 8-9mm fire-resistant air duct boards need to be wrapped and filled with Utson rock wool in the middle. This can improve the fire resistance of the ventilation duct to 1-3 hours.

本文由山東通風(fēng)管道友情奉獻(xiàn).更多有關(guān)的知識(shí)請(qǐng)點(diǎn)擊:http://www.ajdlpj.cn/真誠(chéng)的態(tài)度.為您提供為全面的服務(wù).更多有關(guān)的知識(shí)我們將會(huì)陸續(xù)向大家奉獻(xiàn).敬請(qǐng)期待.This article is a friendly contribution from Shandong Ventilation Duct. For more related knowledge, please click: http://www.ajdlpj.cn/ Sincere attitude. We provide you with comprehensive services. We will gradually contribute more relevant knowledge to everyone. Please stay tuned