共查询到18条相似文献,搜索用时 93 毫秒
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该文介绍了气控流量调节阀的技术参数、结构特点、工作原理及应用场合,应用这种气控流量调节阀可以实现手动或自动调节液体流量和速度的目的,因而在生产实际中获得广泛应用。 相似文献
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介绍了环喷式流量调节阀在高消能工况下的应用与研究过程及其结构特点 ,分析了在高消能工况下 ,调节阀产品应采取的相应措施 相似文献
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Sleeve regulating valve is the key component of the industrial system. As the main cause of vibration and noise inside the sleeve regulating valve, cavitation also increases the energy loss when fluid flows through the valve. In this paper, in order to quantitatively analyze the influence of cavitation in the sleeve regulating valve, the effects of throttling windows number, pressure difference, valve opening and flow direction on the resistance coefficient are investigated with the application of cavitation model. By defining the cavitation influencing factor of the resistance coefficient, the calculation formula of the resistance coefficient when cavitation occurs in the sleeve regulating valve is proposed. The results show that when the fluid flows forward and the aggravation degree of cavitation increases, the energy loss also increases. And in the backward flow, the effect of cavitation on the resistance coefficient is related to the valve opening and the throttling windows number. This work is of significance for the optimization and design of sleeve regulating valve and pipeline system. 相似文献
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介绍了电力行业热力凝结水及给水系统的泵出口压力控制系统、旁路控制系统及新开发的泵再循环自动调节系统,分析了多功能泵再循环自动调节阀在系统中的工作状态及结构特点。 相似文献
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