Coal-fired power plant positive balance coal consumption monitoring method
A coal-fired power plant, positive balance technology, applied in data processing applications, instruments, calculations, etc., can solve problems such as poor reliability of positive balance coal consumption data, and achieve the effect of improving accuracy
Pending Publication Date: 2021-12-31
SUZHOU XIRE ENERGY SAVING ENVIRONMENTAL PROTECTION TECH CO LTD +1
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[0005] The purpose of the present invention is to provide a positive balance coal consumption monitoring method for coal-fired power plants, which is used to obtain real-time generation coal consumption and power supply coal consumption of the unit, and solve the problem of poor reliability of the existing positive balance coal consumption data
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[0118] Using a 2×660MW ultra-supercritical unit, the coal is transported from the coal unloading dock 1 to the coal yard 4 through the multi-stage belt conveyor 2, and then transported to the raw coal bunker 13 through the multi-stage belt conveyor 2, such as figure 1 shown. There are multiple belt conveyors 2, including: first belt conveyor 1A / 1B, second belt conveyor 2A / 2B, third belt conveyor 5A / 5B, fourth belt conveyor 6A / 6B, fifth belt conveyor 3A / 3B, Sixth belt conveyor 4A / 4B, seventh belt conveyor 7A / 7B and eighth belt conveyor 8A / 8B. in particular:
[0119]The coal unloading wharf 1 is connected with the first belt conveyor 1A / 1B, the first belt conveyor 1A / 1B is connected with the debulking machine 3, the debulking machine 3 is connected with the second belt conveyor 2A / 2B, and the second belt conveyor 2A / 2B is connected with the third belt conveyor 3A / 3B, the third belt conveyor 3A / 3B is connected with the fourth belt conveyor 4A / 4B, the fourth belt conveyor 4A / 4B...
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The invention relates to a coal-fired power plant positive balance coal consumption monitoring method, which comprises the following steps: calculating a laser detection correction coefficient according to the coal as fired quantity of a coal-fired unit within a set time, the coal quality as received basis calorific value obtained by manual test and the coal quality as received basis calorific value obtained by laser test; calculating the coal storage amount of the raw coal bunker according to the size of the raw coal bunker and the material level of the raw coal bunker; according to the coal storage amount of the raw coal bunker and the flow of the coal feeder, calculating the coal storage amount feeding lag time of the raw coal bunker; and after the lag time, the calorific value data and the fire coal charging amount are obtained in real time, and the online instantaneous unit power generation coal consumption and the online instantaneous unit power supply coal consumption are calculated according to the laser detection correction coefficient in combination with the online power generation amount of the coal-fired unit. According to the method, the raw coal in the raw coal bunker is accurately quantified, accurate calorific value data is obtained in real time, online instantaneous unit power generation coal consumption or power supply coal consumption can be accurately calculated, the accuracy of positive balance coal consumption data is improved, and a basis is provided for power plant energy consumption accounting.
Description
technical field [0001] The invention belongs to the technical field of coal-fired power generation, and in particular relates to a positive-balance coal consumption monitoring method of a coal-fired power plant. Background technique [0002] By the end of 2020, the total installed capacity of coal-fired power plants will be about 1.1 billion kilowatts. Coal consumption for power generation and coal consumption for power supply are the most important indicators for assessing the operating performance of units. According to relevant national regulations, coal consumption for power generation and power supply in coal-fired power plants are unified based on the low-level calorific value of incoming coal measurement and mechanical sampling analysis of incoming coal. Balance calculation, and report and assessment based on this data, the results of counter-balanced coal consumption can be used as a basis for analyzing the problems existing in the unit, and provide a direction for i...
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IPC IPC(8): G06Q10/06G06Q50/06
CPCG06Q10/0639G06Q50/06
Inventor 王祝成陈敏王小华梅振锋姚胜薛晓垒彭小敏俞胜捷梁昊刘瑞鹏赵鹏李越丁奕文朱晋永王晖
Owner SUZHOU XIRE ENERGY SAVING ENVIRONMENTAL PROTECTION TECH CO LTD