节流孔板

针对合成氨系统的大型压缩机组管系振动问题，深入分析了原因后，采取在管道中加装节流孔板的措施，使管系振动得到了有效控制。

To solve the problem of pipes vibration of large-sized compressor in ammonia plant , orifice plates are installed after thorough analysis of the causes of vibration , effectively solved the problem .

节流孔板在发电厂的应用

Applying throttle orifice to power plants

本文就节流孔板进行了试验研究。

Experimental study on throttle orifice plate is processed in this paper .

汽水管道中节流孔板的合理使用

Application of Throttle Orifice in Steam Water Piping

研究了节流孔板引起的压差对含腐蚀坑点的管道系统的影响。

In this paper , the influence of orifice-induced pressure head on pit corroded piping is studied .

在热力入口或空调靠近冷源环路的部分管段上增加节流孔板。

Heat or air conditioning at the entrance near the cold source loop on part of tube sections to increase savings Orifice .

其中进排气采用一维非定常流动模型，控制阀采用节流孔板模型。

The gas flows in intake and exhaust manifolds are described by one-dimensional unsteady model , and an orifice type of control valve is used .

对于强制循环系统，为了避免循环水动力的多值性，设计均要求在每一根水冷壁管设置节流孔板。

For the forced circulation system , to avoid the excessive values of circulation water dynamic , every water cooling tube must be mounted throttle plate in the design .

结果表明：节流孔板是电控共轨喷油器的重要构成部分，既控制着喷油嘴针阀的开启速度，又控制着喷油率的形状。

The results show that , as important components of electronic injector used in common rail system , orifices affect on the open rate of nozzle needle and injection rate shapes .

因此，合理优化节流孔板参数，对改进喷油器的喷射性能、改善发动机燃烧状况、降低排放等具有重大意义。

So , it is of great importance in getting optimum parameters and ratio of the flow rate to improve the injection rate shapes and combustion status , and achieve lower emission .

通过试验和现场调研，对节流孔板内的流场及结构等进行了系统地分析研究，最终为节流装置及风机试验台的设计提供理论依据。

Flow field and structure in throttle orifice plate is systematically analyzed and studied by experiment and locale research , and finally theoretical foundation is provided for design of throttle equipment and test-bed on blower .

讨论在测量易结晶介质的压力（差压）时，减少冲洗水影响的具体方法，探讨冲洗水节流孔板孔径的简单计算方法。

A concrete method about reducing the influence of wash water when measuring the pressure ( differential pressure ) of easy crystal medium is discussed . A simple calculation method of wash water orifice size is discussed too .

综合应用流体力学及流体动力学的有关理论，同时结合粘性流动与紊流流动的动力学方程，对节流孔板进行了理论分析，得出了取压间距与各参数间的关系。

Secondly , throttle orifice plate is theoretically analyzed by completely applying relating theory of hydrodynamics and hydrokinetics , and combining kinetics equitation of stickiness flow and confused flow , relation of distances of obtaining press and all parameters .

GB/T2624-1993流量测量节流装置用孔板、喷嘴和文丘里管测量充满圆管的流体流量采用激波拟合法数值模拟城市雨水管道中明满流混合流动

" Measurement of fluid flow by means of orifice plates , nozzles and Venturi tubes inserted in circular cross-section conduits running full "

主要讲述了锅炉管路中节流孔板和流量孔板的设计原理及应用，以期在工作设计上更全面深入掌握产品原理，提高设计质量。

This paper introduces the design principles and application of throttle orifice and pressure differential meter for boiler pipe work . So we can know the products property deeply and improve quality of the design job .