一、前言从联片供汽中心向附近的几个热用户集中供热,已成为目前重要的节能手段。实践证明,这样不但可提高企业的热能利用率,还可以使一些企业节约大量的锅炉建设费用和生产管理费用,同时也减少了对环境的污染。由于联片供汽中心要供应多个热用户用汽,大大扩大了蒸汽供应范围,使收集各个热用户的蒸汽凝结水并将它集中回送到中心锅炉房去就成为一个复杂的问题。同国外相比,我国供热系统的热能利用率较低的原因是多方面的。但应当指出,作为供热系统的一个重要组成部分,即蒸汽凝结水回收系统的设计改造和管理方面的问题普遍未受到重 I. INTRODUCTION Central heat supply to several nearby hot users from Lianwei Steam Supply Center has become an important energy-saving measure at present. Practice has proved that this will not only improve the utilization of thermal energy, but also enable some companies to save a lot of boiler construction costs and production and management costs, but also reduce the pollution of the environment. As Lianpeng Steam Supply Center to supply multiple hot user steam, greatly expanding the scope of the steam supply, so that the collection of steam condensing water users and focus it back to the central boiler room to go to become a complex issue. Compared with foreign countries, China’s heating system, the utilization rate of thermal energy is lower for many reasons. However, it should be pointed out that as an important component of the heating system, the design, renovation and management of the steam condensate recovery system are generally unimpaired