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A method for on-line measurement of main steam flow

A technology of main steam flow and measurement method, which is applied in the field of main steam flow measurement in thermal power plants, can solve the problem of low accuracy of main steam flow, and achieve the effect of improving accuracy

Active Publication Date: 2021-11-12
CHINA DATANG CORP SCI & TECH RES INST CO LTD EAST CHINA BRANCH +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The technical problem to be solved by the present invention lies in the low accuracy of the online measurement method of the main steam flow in the prior art

Method used

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  • A method for on-line measurement of main steam flow
  • A method for on-line measurement of main steam flow
  • A method for on-line measurement of main steam flow

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Embodiment Construction

[0027] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are part of the present invention Examples, not all examples. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0028] An online measurement method of main steam flow, applied to an online main steam flow measurement device, said method comprising:

[0029]Step S1: Collect the benchmark working condition data of the unit, and the benchmark working condition data adopts the data under the performance test working condition; the selection of the benchmark working condition also has a signifi...

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Abstract

The invention discloses an on-line measurement method of main steam flow, which is applied to an on-line measurement device of main steam flow. The method comprises: collecting the data of the reference working condition of the unit, and the data of the reference working condition adopts the data under the working condition of the performance test; The working condition data is preprocessed and the steam flow rate of the steam turbine flow part under the current working condition is obtained by using the formula, and the main steam flow rate under the current working condition is obtained according to the steam flow rate of the steam turbine flow part under the current working condition; the advantages of the present invention are: The accuracy of online measurement of steam flow is strong.

Description

technical field [0001] The invention relates to the field of main steam flow measurement in thermal power plants, and more particularly relates to an online measurement method for main steam flow. Background technique [0002] At present, my country's requirements for energy saving and consumption reduction are increasing day by day, which requires thermal power plants to conduct on-line measurement and on-line monitoring of economic performance. When evaluating the operating status of the unit and calculating the economic indicators such as the heat rate of the steam turbine, the main steam flow rate, as one of the key parameters of the thermal system, plays an important role in the performance monitoring and process control of the unit. The accuracy of the main steam flow rate will significantly affect the accuracy of the calculation of economic indicators such as heat rate. [0003] The measurement methods of steam flow are generally divided into direct measurement metho...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01F1/36G01F1/68
CPCG01F1/36G01F1/68
Inventor 邵飞刘海东吴光明张宁蒋寻寒阮圣奇吴仲陈开峰任磊蒋怀锋吴剑徐搏超李强王文阳
Owner CHINA DATANG CORP SCI & TECH RES INST CO LTD EAST CHINA BRANCH