scraper室外消防钢丝网骨架塑料复合PE管施工组织设计方案
本工程室外消防给水管道采用钢丝网骨架塑料复合管,该种管道是以缠绕在管材中的高强度钢丝为增强骨架,其内外层以高强度聚乙烯为基体,并通过热熔胶复合经连续挤出成型的新型环保管材。管道公称管径有DN200,DN150,DN100,设计PN1.0MPa。管材具有优良的承压性能、卫生性能以及易于敷设、技术可靠、使用寿命长等特点。其耐腐蚀介质范围广,无毒、安全卫生,是理想的环保型给排水、燃气管材。管材与管件材质熔为一体,确保管接头不泄露,对地下运动和端载荷的有效抵抗能力强,聚乙烯的应力松弛可有效地通过形变而消耗应力,具备足够的端载荷抵抗能力。
适用于市政(给水、消防给水、埋地排水、排污等)、建筑的给排水、消防和气体输送,也运用于化工、石油、电力、医药、冶金、矿山等工业领域及农业灌溉。水力特性好,由于塑料内管壁光滑不结垢,输送阻力小,输送能力可比传统管道提高30%。柔韧性好,尺寸稳定性和耐冲击性好,铺设安装方便,埋地安装时,可有效承受由于沉降、滑移、车辆等造成的突发性冲击载荷,不需做混凝土管道基础,使用寿命长,用途广泛。
施工单位为XXX,监理单位为XXX,设计单位为XXX,建设单位为XXX。本工程采用《建筑
给水排水及采暖工程施工质量验收规范》GB-2002、《钢丝网骨架塑料(聚乙烯)复合管道技术规程》(CECS181-2005)和《施工现场临时用电安全技术规范》(46-2012)等编制依据。
在施工过程中,将采取有效的安全管理措施和环保管理措施,确保施工质量和安全。施工组织管理机构图将根据项目实际情况进行编制。
The n of the XXX electric hot melt n。Electric hot melt n utilizes a voltage of 220±20V to insert the composite pipe into the electric hot melt fitting。The electric wire XXX XXX heat。melting the surface of the XXX the gaps een the pipe and the fitting until the outer surface of the pipe also melts。The two XXX。XXX n een the pipe and the fitting once cooled.
The characteristics of the pipe n are that the electric hot XXX construct。and the entire pipeline can be assembled and welded after the pipe and fittings are XXX XXX compared to other n methods。XXX.
The key points of the n process are as follows: n n。material n。laying and n of the pipeline trench。pipeline arrangement and n (electric hot melt welding)。XXX hydrants。valve n。valve well masonry。pipeline water pressure test。and acceptance。
1.n n: XXX the design unit in writing if any discrepancies are found een the design content and the site XXX ns。models。XXX。equipment。and auxiliary XXX.
2.Material n。storage。and handling: The ing pipes and fittings must undergo n。including checking the product certificate。quality assurance certificate。performance test report。ns。quantity。packaging。and quality of the pipes and fittings。When inspecting pipes and fittings。samples should be taken from the same batch。XXX fittings should be stored in a well-XXX or a simple site。The pipes should be XXX handling and unloading。the pipes should be tied and lifted with ropes and should not be XXX。they should be XXX.
3.Laying and n of XXX trench: According to the project XXX civil engineering。if the outdoor backfill soil has reached the design n requirements。XXX according to the exten
ded line of the pipeline n marked on the n plan。and then XXX is used in open areas。and the depth of the trench is consistent with the design XXX.
4.XXX arrangement and n: XXX required for electric hot melt n are electric n welding machine。cutting machine。scraper。grinder。n box。etc。Before welding。scrape the surface of the pipe welding face clean。Generally。the scraping depth is 0.2-0.5mm。If the pipe and fittings are too tight to insert。increase the XXX the above work。push the prepared XXX.
在进行管道水压试验之前,需要对管道进行清洗,以确保管道内部没有杂物和污垢。然后,在试验前需要检查所有的阀门是否关闭,并将试验压力设定为设计压力的1.5倍。试验过程中需要保持试验压力稳定,并检查管道是否有渗漏现象。试验完成后,需要对管道进行验收,包括检查管道的外观质量、尺寸、连接是否牢固等。同时,还需要进行水质检测,以确保管道水质符合相关标准。如果发现问题,需要及时进行修复和调整,直到管道达到验收标准。
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