Online estimation system and method for basic heat value received by low-heat-value coal power generation as-fired fuel

A technology with low calorific value and fuel into the furnace, applied in information technology support systems, computing, relational databases, etc., can solve problems such as troublesome research and reference data, difficult problems, etc., and achieve the effect of eliminating unstable influencing factors

Active Publication Date: 2019-08-06
ANHUI XINLT POWER TECH CONSULTING +1
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0005] However, in the actual operation process, the estimation of the base calorific value received by the low calorific value coal power generation project in the coal consumption verification test is a big problem, which brings great trouble to the later research and reference data

Method used

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  • Online estimation system and method for basic heat value received by low-heat-value coal power generation as-fired fuel
  • Online estimation system and method for basic heat value received by low-heat-value coal power generation as-fired fuel
  • Online estimation system and method for basic heat value received by low-heat-value coal power generation as-fired fuel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0085] Approval test of a unit in a power plant using low calorific value coal to generate electricity.

[0086] 1. Overview of main equipment:

[0087] The 2×330MW CFB unit of the power plant is equipped with DG1100 / 17.4-Ⅱ2 circulating fluidized bed boiler produced by Dongfang Boiler (Group) Co., Ltd., and the steam turbine is N330-16.7 / 538 / 538 steam turbine of Dongfang Steam Turbine Factory.

[0088] The boiler is subcritical, single drum, natural circulation, and circulating fluidized bed combustion. It is mainly composed of membrane water-cooled hearth, three air-cooled cyclone separators and a rear shaft flue (HRA) covered by an air-cooled wall. There are twelve panel-type superheater tube panels (six panels for the middle and high panels) and six panel-type reheater tube panels arranged on the front wall of the furnace, and two water-cooled evaporation panels are arranged on the rear wall. There are eight coal inlets arranged in front of the boiler furnace, which are e...

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Abstract

The invention provides an online estimation system and method for basic heat value received by low-heat-value coal power generation as-fired fuel. The system comprises a data collection module which is used for collecting the operation state logic judgment and online estimation real-time parameters of a low-heating-value coal power generation project; a data storage module which is used for storing real-time acquired data by the system; a data calculation module which is used for estimating an in-furnace fuel receiving base heat value by using the acquired real-time parameters; a data publishing module which is used for system acquisition and computing data uploading and publishing. According to the method, a coal consumption checking test result is used for fitting a power generation coalconsumption curve to replace an original complex online calculation method; instable influence factors during operation of a unit are eliminated, the basic heat value received by the as-fired fuel ofthe low-heat-value coal power generation project is estimated in real time through an inverse balance method, online evaluation of the low-heat-value coal power generation project is achieved, and data support is provided for comprehensive utilization of low-heat-value coal for power generation property judgment of the low-heat-value coal power generation project.

Description

technical field [0001] The invention relates to the technical field of on-line estimation of the received base calorific value of a low calorific value coal power generation project, in particular to an on-line estimation system and method for the received base calorific value of low calorific value coal power generation fuel fed into a furnace based on a coal consumption verification test. Background technique [0002] Coal gangue is the industrial waste with the largest amount of discharge in mining areas. Over the years, the stacking of coal gangue has not only occupied a large amount of land, but also caused serious pollution to the environment of the mining area. Coal slime is the waste in the process of coal washing. Due to its difficulty in handling and utilization, it is piled up or filled into abandoned mines in many occasions. The piled coal slime occupies a large amount of land resources and causes serious pollution to the environment; the coal slime filled in the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50G06F16/22G06F16/28G06Q10/06G06Q50/06
CPCG06F16/22G06F16/284G06Q10/0639G06Q50/06G06F2119/08G06F30/20Y04S10/50
Inventor 李梓楠张骏施壮蔡伟蔡兵方伦甄诚
Owner ANHUI XINLT POWER TECH CONSULTING
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