高层建筑采暖系统不便维修北京铁路局北京勘测设计院刘红星现象高层建筑采暖系统一般都采用上供下回单管顺序式系统设计方案，通常每个立管带８～１１层的散热器。设计时设计人员在立管上未装分段阀门，一旦某组散热器漏水，维修时需将顶层和底层的立管阀门关闭，使维修工... High-rise building heating system inconvenient maintenance Beijing Railway Survey and Design Institute of Beijing Railway Investigation and Design Institute Liu Hongxing Phenomenon High-rise building heating systems generally use the upper and lower single-sequential sequential system design scheme, usually each riser with 8 to 11 layers of radiators. The designer did not install subsection valves on the riser when designing. Once a group of radiator leaks, the top and bottom riser valves need to be closed during maintenance to make the maintenance workers...