烟气脱硫岛工程FRP管的采购及技术要点

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烟气脱硫岛工程FRP管的采购及技术要点烟气脱硫岛工程FRP管的采购及技术要点目录一、询价、采购需要提供的资料···········································································-1-1工程概况···············································································································································-1-2设计和运行条件···································································································································-1-3材料清单···············································································································································-3-二、FRP的技术相关点·························································································-4-1设计要求·····································································································································-4-2FRP管的材料····························································································································-4-3FRP制作····································································································································-6-4性能保证及特性·························································································································-9-5吊装、运输和存放·····················································································································-9-6FRP管的连接··························································································································-10-7管道的安装·······························································································································-10-三、供方需要交付的技术资料·············································································-12-四、主要供货厂家·······························································································-12-烟气脱硫岛工程FRP管的采购及技术要点-1-一、询价、采购需要提供的资料1工程概况包括厂址概述、交通状况、气象条件等。2设计和运行条件2.1石膏浆液参数最大平均最小备注1、物理特性密度Kg/m3温度°CpH黏度mPa.s固体含量wt.%D50μm2、成分2.1、固体CaSO4•2H2Owt.%CaSO3•½H2Owt.%CaCO3wt.%MgCO3wt.%CaF2wt.%MgF2wt.%飞灰wt.%惰性物质wt.%2.2可溶物质浆液中可溶物含量wt.%SO42-ppmMg2+ppmCa2+ppm1)起动时浆液的pH=。烟气脱硫岛工程FRP管的采购及技术要点-2-2)对管道选择,氯化物浓度:g/l;3)D50:~µm。2.2石灰石浆液参数最大平均最小备注1、物理特性密度Kg/m3温度°CpH黏度mPa.s固体含量wt.%2、成分2.1、固体CaSO4•2H2Owt.%CaSO3•½H2Owt.%CaCO3wt.%MgCO3wt.%CaF2wt.%MgF2wt.%飞灰wt.%SOOT惰性物质wt.%2.2、可溶物质浆液中可溶物含量wt.%SO42-ppmMg2+ppmCa2+ppm1)起动时浆液的pH=。2)对管道选择,氯化物浓度:g/l;烟气脱硫岛工程FRP管的采购及技术要点-3-3材料清单包括管道材料清单及管件材料清单,所有的管道、管件请厂家提供相关的尺寸。3.1对管道应注明公称直径、公称压力、数量、壁厚(或者由厂家提供此数值)、连接方式(承插胶结、对接胶结、承插双“O”型圈、带锁紧的承插双“O”型圈、法兰连接)、适用的标准(JC552-94)等;3.2对法兰及法兰盲板应注明法兰形式(插平、承平、整体、活套)、公称直径、公称压力、数量、适用的标准(GB/T9119-2000、ANSI16.1、DIN2501、DIN2576、HG20592-97)等;3.3对弯头应注明弯头型式(对接、承插、分段)、公称直径、公称压力、数量、壁厚(或者由厂家提供此数值)、弯头的角度、弯曲半径、说明是平端或带法兰(要注明法兰标准)、适用的标准等;3.4对大小头应注明大小头型式(承插、双面法兰)、大小端的公称直径、公称压力、数量、壁厚(或者由厂家提供此数值)、长度、说明是偏心或同心、适用的标准等;3.5对三通应注明三通型式(开孔、法兰、承插)、等径或异径、斜三通的角度、公称直径、公称压力、数量、壁厚(或者由厂家提供此数值)、长度、适用的标准等;3.6配套的螺栓、螺母、垫片(采用非石棉纤维橡胶);烟气脱硫岛工程FRP管的采购及技术要点-4-二、FRP的技术相关点1设计要求1.1规范和标准:FRP管道的制造工艺和材料符合以下标准和规范:1)《纤维缠绕增强热固性树脂压力管》JC552-1994;2)法兰标准:GB/T9119-2000;1.2安装环境条件及相关参数:1)管道安装环境:室外架空、地埋及室内架空的浆液管道;2)环境温度范围:-16℃~70℃;3)溶液成份及浓度、温度:见前表;4)设计压力:PN1.0;2FRP管的材料玻璃钢原材料的名称,化学成分,规格,功能,相关的物理及化学性能指标如下:2.1内衬D-411双酚A环氧型乙烯基树脂耐各种酸,碱,及熔剂等,这一特点允许了在无需更换设备的前提下,可以使用腐蚀性材料。可以承受设计重荷,不会因树脂受损而引起破坏。这就可在大型,重载设备上放心使用。高延伸率使FRP设备的强度增高,此韧性保护了设备在运输与安装过程中,避免撞击等损失,也使设备从工厂运出后减少了破损。DERAKANE*411-350树脂浇注体的室温典型性能性能数值拉伸强度,psi12,100拉伸模量,×105psi4.2延伸率%7.0-8.0弯曲强度,psi21,400弯曲模量,×105psi5.0热变形温度℃99-105结构层、外保护层采用S-901树脂,外表面加入UV-9紫外线吸收剂、胶衣树脂。拉伸强度,psi12,100烟气脱硫岛工程FRP管的采购及技术要点-5-拉伸模量,×105psi4.2延伸率%6.0-7.0弯曲强度,psi21,400弯曲模量,×105psi5.0热变形温度℃80-902.2表面毡表面毡作为内表层和外保护层增强材料,具有较高的含胶量,使制品具有好的耐介质腐蚀、和耐土壤环境腐蚀性能。物理指标为:单重30±5g/m2ISO3374含水率≤0.3%ISO3344含油率7%±1.5%ISO18872.3无碱玻璃纤维针织毡作为内衬层的增强材料,具有较高的含胶量,起防腐防渗作用,控制指标为:单重450±10%g/m2含水率≤0.5%GB11966含油率≤5%GB99142.4网眼布作为内衬层增强材料的压紧材料,避免气泡的产生,控制指标为:单重65g/m2±10%含水率%≤0.3含油率%1.0-2.0靶环试验Sec≤502.5无碱无捻粗纱无碱无捻粗纱的性能见下表:项目指标单位试验方法线密度2400±5%TexGB7690.1-88含水率≤0.1%GB11966-88含油率0.4-0.8%GB9914-88烟气脱硫岛工程FRP管的采购及技术要点-6-3FRP制作FRP管的制作是将浸有不饱和聚脂树脂或乙烯基树脂基体的玻璃纤维增强材料,按照特定的工艺条件在计算控制下逐层缠绕到芯模上并适当固化而成,管壁是一种层状结构,从内到外分别为:防腐层、防渗层、内结构层、树脂砂浆层、外结构层(外保护层),通过改变树脂系统或采用不同增强材料或调整纤维的缠绕角度来改变玻璃钢管道的物理或化学性能,以适应不同介质和工作条件制成不同压力等级或具有某些特殊性能的玻璃管道。该形周期短是纤维缠绕复合材料的显著特点,各向同性的金属管材无法与其相比。3.1为保证现场安装工作顺利进行,FRP尽可能在工厂车间预制,结构件在出厂前进行预组装以保证现场组装尺寸。3.2内表面任意点半径偏差为±2mm;3.3直偏差为±0.5%;3.4复合层表面平整光滑,色泽均匀,无杂质混入,无目测可见裂纹、划痕、疵点及白化分等缺陷,不允许有分层,脱层;3.5配件角度允许偏差不超过±1度;3.6FRP管要具有优良的物理力学性能,密度在1.8~2.1g/cm3,为钢的1/4,重量一般不大于相同规格的钢管的1/3,比强度(100~168)比钢高(48.5),抗拉强度160~320MPa,轴向弯曲强度140MPa,层间剪切强度50MPa,抗拉模量25GPa,剪切模量7GPa,弯曲模量9.3GPa,巴氏硬度40,泊松系数0.3,断裂延伸率0.8~1.2%,内表面粗糙率0.0084。结构设计考虑整个布置均匀,变形挠度小于直径的1%,维修方便;3.7FRP管道最小壁厚将在公称厚度的90%以上,平均厚度不小于公称厚度;3.8管道制作完毕后,对防腐层、管道、管件100%进行质量检验;3.9用目测法和击法检查,外观质量。复合层表面允许有凹陷和深度不超过0.5mm的外伤,印痕,但不准出现裂纹或海绵状大气孔;3.10复合层不允许有脱层现象;3.11FRP管和配件通过丝绕制工艺制造,在内表面至少有2.5mm厚的耐磨损衬垫;3.12FRP管道在支管接头及改变方向处,其内表面至少有2.5cm的弯曲半径。3.13FRP管道内壁均设耐磨层,其厚度2.5mm以上;烟气脱硫岛工程FRP管的采购及技术要点-7-3.14对于采用乙烯基酯树脂做成的纤维缠绕玻璃钢管道的要求;3.14.1最高使用温度达80℃,寿命20年以上,在管道内表面加入特殊填料提高其耐磨性,外表面加入0.5%的紫外线吸收剂以提高防老化性能;玻璃钢管道的内表面表面糙率取0.0084;3.14.2FRP管道预先制做;3.14.3FGD系统浆液输送管道所选用的FRP管各项参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