限流细长孔板阻力特性实验研究与关联式评价

胡娟娟 1; 李会雄 1; 盛天佑 2; 倪士尧 1; 王耀东 3; 谢恩飞 3

doi:10.7652/xjtuxb201807013

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限流细长孔板阻力特性实验研究与关联式评价

更新时间：2025-07-09

- 限流细长孔板阻力特性实验研究与关联式评价
- Experimental Investigation on Resistance Characteristics of Thin and Long Throttling Orifices and Evaluation of the Resistance Correlations
- 西安交通大学学报 2018年52卷第7期页码：87-93
- 作者机构：
  
  西安交通大学多相流国家重点实验室,西安,710049
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb201807013
  中图分类号： TK124
- 网络首发：2018-07-10，
  
  纸质出版：2018
- 稿件说明：
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胡娟娟 1, 李会雄 1, 盛天佑 2, 等. 限流细长孔板阻力特性实验研究与关联式评价[J]. 西安交通大学学报, 2018,52(7):87-93.

Experimental Investigation on Resistance Characteristics of Thin and Long Throttling Orifices and Evaluation of the Resistance Correlations[J]. 2018, 52(7): 87-93.
胡娟娟 1, 李会雄 1, 盛天佑 2, 等. 限流细长孔板阻力特性实验研究与关联式评价[J]. 西安交通大学学报, 2018,52(7):87-93. DOI： 10.7652/xjtuxb201807013.

Experimental Investigation on Resistance Characteristics of Thin and Long Throttling Orifices and Evaluation of the Resistance Correlations[J]. 2018, 52(7): 87-93. DOI： 10.7652/xjtuxb201807013.

摘要

为研究限流细长孔板阻力随孔板几何尺寸的变化规律

在高温高压条件下

以去离子水为工质

对其进行了实验研究。结果表明

质量流量一定时

孔板直径是影响阻力的决定性因素

其次是孔板长度

而与孔板相连的管道直径对阻力基本无影响。以实验数据为基础

对现有孔板阻力计算关联式进行了整理、评价

结果表明现有关联式对本文细长孔板阻力的预测精度不高

适用范围普遍较窄

且部分关联式并未考虑孔板长度对阻力的影响。基于本文实验数据

通过拟合建立了细长孔板阻力的新计算关联式

包括了孔板长度、孔板直径及雷诺数对细长孔板阻力的影响。新建立的阻力关联式具有较高的预测精度

对于长径比为5～70、入口雷诺数为1.5×10

～3.0×10

的限流细长孔板的阻力特性

预测精度为±15%。本研究为限流细长孔板的设计与应用提供了可靠依据。

Abstract

To study the resistance characteristics of thin and long throttling orifices with change of geometric size

experimental research was carried out with deionized water under high temperature and high pressure conditions. Experimental results showed that the diameter of orifice is the decisive factor influencing resistance

and the length of orifice has a small influence on resistance; the diameter of the pipe has little influence on the resistance when the mass flow is constant. On the basis of the experimental data

evaluations of the existing orifice resistance calculation correlations were conducted. It is found that the existing correlations with narrow application ranges are not pr

ecise

and some correlations do not take the influence of orifice length on its resistance into account. Considering the influences of orifice length

orifice diameter and Reynolds number on the orifice resistance

a new correlation with higher prediction accuracy is presented. This new correlation can be used to accurately predict the resistance characteristics of the orifices with the length-to-diameter ratios between 5 and 70 and the Reynolds number between 1.5×10

and 3.0×10

providing a reliable basis for the design and application of thin and long throttling orifices.

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Keywords

references

刘长亮, 王晓江, 曲昌明. 核电厂用限流孔板压降计算 [J]. 原子能科学技术, 2013, 47(3): 397-401.

LIU Changliang, WANG Xiaojiang, QU Changming. Calculating pressure loss of throttling orifice in nuclear power plant [J]. Atomic Energy Science and Technology, 2013, 47(3): 397-401.

HUANG Shanfang, MA Taiyi, YEXIN Quwen, et al. Pressure drop of perforated orifice in single-phase flow [C]∥Proceedings of 18th International Conference on Nuclear Engineering. New York, USA: ASME, 2010: 107-115.

刘银水, 杨友胜, 朱玉泉, 等. 以水为介质阻尼孔气穴流动理论和试验研究 [J]. 机械工程学报, 2007(2): 147-150.

LIU Yinshui, YANG Yousheng, ZHU Yuquan, et al. Theoretical and experimental research on cavitation flow of orifices using water as working media [J]. Chinese Journal of Mechanical Engineering, 2007(2): 147-150.

魏起森. 柴油机喷油嘴内部空化现象的研究 [D]. 洛阳: 河南科技大学, 2011: 1-4.

KOJASO G, LANDIS F, KWAME-MENSAH P, et al. Two-phase pressure drop in multiple thick- and thin-orifice plates [J]. Experimental Thermal Fluid Science, 1997, 15(4): 347-358.

BRENNEN C E. Cavitation and bubble dynamics [M]. Oxford, UK: Oxford University Press, 1995: 217-240.

叶超, 王洪锐, 陈二锋, 等. 流体节流过程中空化现象的数值模拟 [J]. 低温与超导, 2015, 43(1): 15-20.

YE Chao, WANG Hongrui, CHEN Erfeng, et al. Numerical simulation on the cavitation in liquid throttling [J]. Cryogenics Superconductivity, 2015, 43(1): 15-20.

JANKOWSKI T A, SCHMIERER E N, PRENGER F C, et al. A series pressure drop representation for flow through orifice tubes [J]. Journal of Fluids Engineering, 2008, 130(5): 589-603.

NAKAYAMA Y. Action of the fluid in the air-micrometer: 2nd report Characteristics of small-diameter nozzle and orifice: No. 2 in the case of compressibility being considered [J]. Bulletin of JSME, 1961, 4(15): 516-524.

YU B, FU P F, ZHANG T, et al. The influence of back pressure on the flow discharge coefficients of plain orifice nozzle [J]. International Journal of Heat Fluid Flow, 2013, 44(4): 509-514.

CHISHOLM D. Two-phase flow in pipelines and heat exchangers [M]. Essex, UK: G. Godwin in Association with Institution of Chemical Engineers, 1983: 167-183.

景思睿, 张鸣远. 流体力学 [M]. 西安: 西安交通大学出版社, 2001: 175-176.

FRIED E, IDELCHIK I E. Flow resistance: a design guide for engineers [M]. New York, USA: Hemisphere Publishing Corporation, 1989: 69-75.

SANGHANI C. Comparison of experimental, theoretical and simulation result for pressure drop in sharp edged orifice meter [J]. International Journal of Science, Engineering and Technology Research, 2016, 5(3): 775-778.

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