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Method for real-time online calculation and measurement of separation efficiency of separator

A separation efficiency and measurement method technology, applied in the field of electric power, can solve the problems of low accuracy and reliability of test results, high test difficulty, and low accuracy of measurement results, and achieve real-time calculation or measurement, accuracy and reliability assurance. Effect

Inactive Publication Date: 2010-03-10
XIAN THERMAL POWER RES INST CO LTD
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AI Technical Summary

Problems solved by technology

[0007] 1) The test is difficult;
[0008] 2) The accuracy of the measurement results is not high, and the accuracy and reliability of the test results are low;
[0009] 3) Real-time calculation of separator efficiency cannot be realized

Method used

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  • Method for real-time online calculation and measurement of separation efficiency of separator
  • Method for real-time online calculation and measurement of separation efficiency of separator
  • Method for real-time online calculation and measurement of separation efficiency of separator

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Embodiment Construction

[0044] The present invention first studies the measuring points of circulating fluidized bed boilers (or with separator equipment), and determines the measuring points, related parameters and correction coefficients needed for real-time calculation; The calculation method can be used to calculate the separator efficiency of the separator in real time; the separator efficiency of the separator can also be determined by the following method through manual recording and off-line measurement data.

[0045] 1) Obtain the average material concentration in the upper part of the furnace through the differential pressure value;

[0046] ρ up = P mid - P up gh mid - up

[0047] In the formula: ρ up ——the ...

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Abstract

The invention relates to a method for the real-time online calculation and the measurement of the separation efficiency of a separator. The method comprises the following steps: directly collecting ormeasuring the values of pressure in the middle and at the upper part of a boiler hearth; acquiring the material concentration of a separator inlet by the difference value of the pressure in the middle and at the upper part of the boiler hearth; utilizing a flying ash quotient or the starting number of an ash bin under an electrostatic dust collector to acquire a flying ash flow; and utilizing a gas flow practically measured or calculated at a separator outlet to acquire a material concentration of the separator outlet, wherein the separation efficiency of the separator satisfies an equation:eta cyc=100*(1-rho out / rho in). The method utilizes a prior measuring point of a circulating fluidized bed boiler (or equipment with the separator) to conveniently calculate the efficiency of the separator in real time without additionally arranging auxiliary measuring equipment, ensures the accuracy and the reliability of a measuring result and realizes real-time calculation or measurement of the efficiency of the separator.

Description

technical field [0001] The invention belongs to the electric power industry, and in particular relates to a real-time on-line measurement method for the separation efficiency of a separator of a circulating fluidized bed boiler (or equipment with a separator). It is mainly used for performance calculation of separator equipment and evaluation of separator separation characteristics. Background technique [0002] The separation efficiency of the separator of circulating fluidized bed boiler is an important index to evaluate the performance of the separator. The separation efficiency of the separator often determines the operating performance of the boiler or equipment. Generally, if the ash flow rate at the inlet and outlet of the separator can be directly measured, the separation efficiency of the separator can be directly calculated according to the definition of the separation efficiency of the separator: [0003] η cyc = ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M19/00G01M99/00
Inventor 王智微
Owner XIAN THERMAL POWER RES INST CO LTD
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