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Online quick calculation method for combustion efficiency of coal-fired boilers

A combustion efficiency, coal-fired boiler technology, applied in the field of boilers, can solve the problems of guidance, long detection time of ash carbon content, boiler changes, etc., and achieve the effect of strong versatility

Inactive Publication Date: 2017-11-03
CHINA JILIANG UNIV
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  • Application Information

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Problems solved by technology

However, it takes a long time to detect the carbon content of the ash, and the boiler operating conditions often change. The measured boiler combustion efficiency cannot guide the boiler operation adjustment in time.

Method used

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  • Online quick calculation method for combustion efficiency of coal-fired boilers
  • Online quick calculation method for combustion efficiency of coal-fired boilers
  • Online quick calculation method for combustion efficiency of coal-fired boilers

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Embodiment Construction

[0029] The present invention will be further described below in conjunction with accompanying drawing.

[0030] The online rapid calculation method of the combustion efficiency of the coal-fired boiler of the present invention realizes the rapid acquisition of the combustion efficiency of the coal-fired boiler of the power station and the coal-fired boiler of the industry, and provides a scientific basis for good operation regulation of the boiler. The formula for calculating the combustion efficiency of a boiler is as follows:

[0031] η=100-q 3 -q 4

[0032] Where η represents the combustion efficiency of the boiler, %; q 3 Indicates the percentage of heat lost by incomplete combustion of boiler gas to the heat input, %; q 4 Indicates the percentage of the heat lost by incomplete combustion of boiler solids to the heat input, %. In order to realize the rapid calculation of the combustion efficiency of coal-fired boilers, the present invention simplifies the calculation ...

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Abstract

The invention discloses an online quick calculation method for combustion efficiency of coal-fired boilers. Through the method, the combustion efficiency of a power station coal-fired boiler and an industrial coal-fired boiler can be quickly acquired, and a scientific basis is provided for good operation and regulation of the boilers. The calculation formula of the combustion efficiency of the boilers is shown in the description, wherein eta refers to the combustion efficiency % of the boilers; q<3> refers to the percentage % of heat of incomplete combustion heat loss of boiler gases in input heat; and q<4> refers to the percentage % of heat of incomplete combustion heat loss of boiler solids in input heat. According to the method, online calculation of the combustion efficiency of the coal-fired boilers is realized by analyzing data easy to measure on site, and synchronous calculation of incomplete combustion loss of the boiler gases and the boiler solids is also realized. Meanwhile, the calculation method is high in universality, and efficiency calculation can be performed on the power station coal-fired boiler and the industrial coal-fired boiler through the calculation model.

Description

technical field [0001] The invention belongs to the technical field of boilers, and in particular relates to an online fast calculation method for the combustion efficiency of a coal-fired boiler. Background technique [0002] Nearly 45% of my country's coal resources are used for power generation and heating. As of the end of 2014, coal-fired units accounted for about 62% of the total number of generating units. At the same time, there are still a large number of industrial coal-fired boilers with low unit efficiency. The combustion efficiency of coal-fired boilers is relatively low, resulting in a waste of energy and serious environmental pollution. Therefore, improving the combustion efficiency of coal-fired boilers has a very close relationship with the implementation of energy-saving and emission-reduction strategies. Combustion efficiency is an extremely important index to indicate the economical efficiency of boiler operation. Quickly and accurately calculating the r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F19/00
CPCG16Z99/00
Inventor 闫志勇王诣
Owner CHINA JILIANG UNIV
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