FLOW RESISTANCE PROPERTY ACROSS HORIZONTAL ORIFICE OF LOOP SEAL

王擎; 孙键; 骆仲泱; 岑可法; 倪明江

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FLOW RESISTANCE PROPERTY ACROSS HORIZONTAL ORIFICE OF LOOP SEAL

更新时间：2025-12-16

- FLOW RESISTANCE PROPERTY ACROSS HORIZONTAL ORIFICE OF LOOP SEAL
- CIESC Journal Issue 5, (1999)
- 作者机构：
  
  东北电力学院动力系!吉林132012,东北电力学院动力系!吉林132012,浙江大学热能工程研究所!杭州310027,浙江大学热能工程研究所!杭州310027,浙江大学热能工程研究所,杭州,310027
- 作者简介：
- 基金信息：
- DOI：
  CLC： K223.72
- Online First：25 October 1999，
  
  Published：25 October 1999
- 稿件说明：
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王擎, 孙键, 骆仲泱, et al. FLOW RESISTANCE PROPERTY ACROSS HORIZONTAL ORIFICE OF LOOP SEAL[J]. CIESC Journal, 1999, (5).
DOI：

王擎, 孙键, 骆仲泱, et al. FLOW RESISTANCE PROPERTY ACROSS HORIZONTAL ORIFICE OF LOOP SEAL[J]. CIESC Journal, 1999, (5). DOI：

摘要

通过冷态试验详细研究了环流料封阀水平孔口面积对返料特性的影响

获得了不同条件下环流料封阀水平孔口的阻力特性.根据试验结果和理论分析建立了水平孔口压差与通过孔口处的固体流率之间的经验关系式.定义了孔口流量系数新的关系式.这将为环流料封阀的设计与运行提供依据.

Abstract

Based on a cold CFB model

the effect of horizontal orifice areas of Loop Seal on performance was studied in detail. The resistance properties across orifice were obtained under its different operational conditions. An empirical relation between the pressure drop across horizontal orifice and solids circulating flow rate was proposed and a new orifice discharging coefficient was also defined according to the experimental results and theoretical analysis. These will provide a sound basis for the optimum design and operation of Loop Seal.

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