CALIBRATION AND EVALUATION OF ASME THROAT-TAP NOZZLE WITH LOW β VALUE

LI Heng1; JIANG Hao21.Xi'an Electric Power Senier Professional College

doi:10.19666/j.rlfd.2008.12.004

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CALIBRATION AND EVALUATION OF ASME THROAT-TAP NOZZLE WITH LOW β VALUE

更新时间：2025-09-28

- CALIBRATION AND EVALUATION OF ASME THROAT-TAP NOZZLE WITH LOW β VALUE
- Thermal Power Generation Vol. 37, Issue 12, Pages: 13-16(2008)
- 作者机构：
  
  1. 西安电力高等专科学校
  2. 西安热工研究院有限公司
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.2008.12.004
  CLC： TM621
- Published：2008
- 稿件说明：
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LI Heng1, JIANG Hao21.Xi'an Electric Power Senier Professional College. CALIBRATION AND EVALUATION OF ASME THROAT-TAP NOZZLE WITH LOW β VALUE[J]. Thermal power generation, 2008, 37(12): 13-16.
DOI：

LI Heng1, JIANG Hao21.Xi'an Electric Power Senier Professional College. CALIBRATION AND EVALUATION OF ASME THROAT-TAP NOZZLE WITH LOW β VALUE[J]. Thermal power generation, 2008, 37(12): 13-16. DOI： 10.19666/j.rlfd.2008.12.004.

摘要

准确可靠的热耗率和煤耗率指标是火电机组节能降耗以及提高设备可用率的基本依据

而主流量则是计算这些指标最为关键的参数。目前

国内电厂所使用的流量测量装置不确定度较大

难于满足机组节能降耗性能试验的需要。低β值喉部取压喷嘴是《ASME PTC性能试验规程》推荐的一种高精度流量测量装置

为保证其具有较低的不确定度

喷嘴的校验方法以及对校验数据的正确评价尤为关键。

Abstract

The accurate and reliable indices of heat and coal consumption rate are the foundamental basis for measures in energy-saving and consumption-reducing

as well as in enhancing the equipment availability of thermal power units

whereas the main flow rate is a most crucial pamameter for calculating the said indices.At present

the uncertainty of flow rate measuring facilities in domestic power plants is very high

it is difficult to satisty the requirements of performance test for energy-saving and consumption-reducing of the units.The throat-tap nozzle with low β value is a high accurate flow rate measuring facility recomended in 《ASME Performance Test Code》

in order to ensure the lower uncertainty of said nozzle

the varification method of said nozzle and correct evaluation of the varified data are most critical.

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Related Author

JIANG Hao

XU Fuying

BAI Xinkui

CHANG Dongfeng

LI Xin

WANG Hao

HUANG Jiasi

LI Yang

Related Institution

Huaneng Pingliang Power Plant

Xi’an Thermal Power Research Institute Co., Ltd.

State Grid Hunan Electric Power Company Research Institute

Hunan Xiangdian Test and Research Institute Co. Ltd.

Hunan Province Key Laboratory of High Efficiency and Clean Thermal Power Technology

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