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标题: BS EN 13941-2009+A1-2010 区域供暖用预绝热连接管的设计与安装 [打印本页]

作者: sigh007 时间: 2012-3-24 11:52:58 标题: BS EN 13941-2009+A1-2010 区域供暖用预绝热连接管的设计与安装

【英文标准名称】: Design and installation of preinsulated bonded pipe systems for district heating 【原文标准名称】: 区域供暖用预绝热连接管的设计与安装【标准号】: BS EN 13941-2009+A1-2010 【标准状态】: 现行【国别】: 英国【发布日期】: 2009-07-31 【实施或试行日期】: 2009-07-31【发布单位】: 英国标准学会(GB-BSI)【起草单位】: BSI【标准类型】: ()【标准水平】: ()【中文主题词】: 符合夹套管;合成管;定义(术语);设计;远距离供热;区域供暖;热水供应网;安装;套管;鼓箍;长距离加热系统;材料;数学计算;聚乙烯(PE);管道敷设;管道系统;管道;管道工程系统;管系统;塑料;聚氨酯;规范(验收);钢管;钢管道;钢;测试;隔热;地下;配水;水管系统;水管【英文主题词】: Composite jacket pipes;Composite tubes;Definitions;Design;Distant heating;District heating;Hot water networks;Installations;Jacket tubes;Lagging of a drum;Long distance heating systems;Materials;Mathematical calculations

ipe laying

ipe system

ipelines

ipework systems

iping system

lastics

olyurethane;Specification (approval);Steel pipes;Steel tubes;Steels;Testing;Thermal insulation;Underground;Water distribution;Water pipe systems;Water pipes【摘要】: This European Standard specifies rules for design, calculation and installation for preinsulated bonded pipesystems for buried hot water distribution and transmission networks (cf. Figure 2) with pipe assemblies inaccordance with EN 253, for continuous operation with hot water at various temperatures up to 120oC andoccasionally with peak temperatures up to 140oC and maximum internal pressure 25 bar (overpressure).Application rule:For larger pipe dimensions and pressures below 25 bar wall thickness bigger than specified in EN 253 can be required for straight pipes, bendsand tees.The principles of the standard can be applied to preinsulated pipe systems with pressures higher than 25 bar, provided that special attention ispaid to the effects of pressure. Adjacent pipes belonging to the network (e.g. pipes in ducts, valve chambers, road crossings above ground etc.)can be designed and installed according to this standard.The standard assumes use of treated water, which by softening, demineralisation, deaeration, adding of chemicals,or otherwise has been treated to prevent internal corrosion and deposits in the pipes.This standard is not applicable for such units as:a) pumps,b) exchangers,c) boiler installations, tank installations,d) consumer installations.However, the full functional ability and durability of such units should be ensured in consideration of the impactsfrom the district heating system and other impacts occurring from the conditions under which they have beeninstalled.Guidelines for product quality inspection and in situ tests of joints are given in Annex A of EN 448-2009, Annex D ofEN 253-2009, Annex A of EN 488-2009 and Annex B of EN 489-2009.Guidelines for welding of polyethylene casing are given in Annex B of EN 448-2009.The estimation of expected life with continuous operation at various temperatures is outlined in Annex B ofEN 253-2009.【中国标准分类号】: 【国际标准分类号】: 91_140_10【页数】: 128P.;A4【正文语种】: 英语

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