重力有压流工程调流阀选型设计关键技术研究

Research on key technologies for selection and design of regulating valves in gravity pressure flow engineering

摘要

流量调节阀主要通过调节阀门开度来实现对流量控制，根据不同的工程特点、应用场合及调压范围等要求可选不同阀门类型和结构型式。如果阀门型式选择不当，不仅影响流量控制精度，同时还会因空蚀问题引起阀门振动和产生噪音，进而影响流量调节阀的使用寿命。因此，如何针对工程特点和使用场景选用合适的调流阀型式和参数至关重要。归纳总结了一种重力有压流工程流量调节阀的选型设计方法，从阀门类型、口径选择、安装高程、汽蚀性能等几个方面对流量调节阀进行综合分析比较，并成功应用于深圳公明水库—清林径水库连通工程，保障了工程运行的可靠性、安全性及稳定性。该选型设计方法可为今后类似长距离输水工程项目提供参考，具有一定的工程应用价值。

Abstract

The flow control valve mainly achieves flow control by adjusting the valve opening. Different valve types and structural types can be selected according to different engineering characteristics, application scenarios, and pressure regulation range requirements. If the valve type is not selected properly, it not only affects the accuracy of flow control, but also causes valve vibration and noise due to cavitation problems, thereby affecting the service life of flow control valves. Therefore, it is crucial to choose the appropriate type and parameters of regulating valves based on the characteristics of the project and the usage scenario. A selection and design method were summarized for flow control valves in gravity pressurized flow engineering. A comprehensive analysis and comparison of flow control valves are conducted from several aspects such as valve type, diameter selection, installation elevation, and cavitation performance. The method has been successfully applied to the connection project between Shenzhen Gongming Reservoir and Qinglinjing Reservoir, ensuring the reliability, safety, and stability of project operation. This selection design method can provide reference for similar long-distance water transportation projects in the future, and has certain engineering application value.

关键词

重力有压流 / 流量调节阀 / 活塞阀 / 选型设计

Key words

gravity pressurized flow / flow control valve / piston valve / selection design

Author summay

陈 笙(1993—), 男, 工程师, 硕士, 主要从事水力机械设计研究。E-mail: [e-mail]