STUDY ON A NEW TYPE FLOW-RATE METER OF THE CONDENSATE
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STUDY ON A NEW TYPE FLOW-RATE METER OF THE CONDENSATE
Thermal Power GenerationVol. 41, Issue 3, Pages: 26-28(2012)
作者机构:
东北电力大学能源与动力工程学院
作者简介:
基金信息:
DOI:
CLC:TH814
Published:2012
稿件说明:
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LI Yong, WANG Jiayong College of Energy and Power Engineering. STUDY ON A NEW TYPE FLOW-RATE METER OF THE CONDENSATE[J]. Thermal power generation, 2012, 41(3): 26-28.
DOI:
LI Yong, WANG Jiayong College of Energy and Power Engineering. STUDY ON A NEW TYPE FLOW-RATE METER OF THE CONDENSATE[J]. Thermal power generation, 2012, 41(3): 26-28.DOI:
STUDY ON A NEW TYPE FLOW-RATE METER OF THE CONDENSATE
摘要
结合某300MW机组5号低压加热器出口的凝结水参数及其管道尺寸
设计出一种便携式一体化孔板流量测量装置
在该装置前、后分别自带长度为3D、2D的直管段
由带颈对焊法兰与管道连接
以减少法兰对孔板前后流场的影响。对该流量测量装置进行标定的结果表明
其测量最大误差为0.85%左右
满足汽轮机热力性能试验对流体流量测量精度的要求。
Abstract
Combined with parameters of condensate at outlet of the low-pressure heater no.5 of one 300MW unit as well as the size of pipelines
a portable integrated perforated-plate type flow-rate meter has been designed.Before and after the said meter
straight pipe-sections
with length of 3D and 2D respectively
are connected to pipelines by using butt-welded flange
so as to reduce the influence of flange upon the flow field of fluid before and after the peforated plate.The result of calibration of said flow-rate meter shows that the maximum error in measurement is about 0.85%
satisfying the requirement in measurement precission of fluid flowrate in thermodynamic performance test of steam turbines.