文章首先简要地说明了疏水阀在节约蒸汽方面的重要作用,以及我国在发展疏水阀产品方面存在的问题和差距。归纳为:疏水阀选择和使用不合理;质量差、性能低;品种规格少、产量也不足;产品的技术开发工作缓慢。接着就疏水阀的分类,即热动力型、热静力型、机械型三大类型疏水阀用图表进行了说明。文章着重提出了合理选择疏水阀的二十一个方面,并提出了相应的数据和建议。 The article first briefly describes the steam trap in the steam to save the important role, as well as our country in the development of steam trap products problems and gaps. Summarized as: trap selection and use of unreasonable; poor quality, low performance; less specifications, production is not enough; product technology development is slow. Followed by the classification of traps, that is, thermodynamic, thermal static, mechanical three types of traps with charts were described. The paper emphatically puts forward twenty-one aspects of the rational selection of steam traps, and puts forward corresponding data and suggestions.