异程空调水系统的设计和应用

Design and Application of Direct-Return Water System of Air-Conditioning System

本文介绍了异程空调水系统的设计、调试方法和在异程空调水系统中应用较多的自力式平衡阀的特性。指出设计中应尽量减小立管干管的阻力,水平支管上慎用或少用自力式平衡阀。同时指出,即使采用了自力式平衡阀,水系统的调试仍是必不可少的,并介绍了国外的调试方法。本文还指出了自力式平衡阀在选用时应充分注意其工作范围。

The design and application of direct-return system water system of air-conditioning system, and the characteristics of self-balancing control valve are discussed. It＇s necessary to decrease the resistance of vertical main-pipe as much as possible, and carefully use or not use self-balancing valve on horizontal branch-pipe. It is pointed out that the adjustment of the piping system is indispensable even though the self-balancing valve was used, and the adjustment method used in Japan is introduced. At last it is pointed out the pressure working range of self-balancing valve must be noticed.