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Coal blending combustion evaluation method and system

An evaluation method and technology for blending coal, which are applied in the field of evaluation methods and systems for blending coal blending, and can solve problems such as calculating combustion efficiency, boiler safety, and increasing auxiliary machine output.

Active Publication Date: 2019-08-09
HUADIAN POWER INTERNATIONAL CORPORATION LTD
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  • Application Information

AI Technical Summary

Problems solved by technology

Although this method mentions the evaluation of the blended combustion effect from the perspective of combustion efficiency, it does not specifically explain how to calculate the combustion efficiency, nor does it consider the blended combustion effect from the perspective of environmental protection operation, and the economic and environmental indicators are just the current thermal power plants most important aspect
[0007] Traditionally, the characterization of boiler performance is usually judged by boiler efficiency. With the emphasis on environmental protection indicators in various countries, pollutant emission data has also become an important parameter of boiler performance; The output of auxiliary machines such as fans is increased, and the quality of coal blending is poor, resulting in boiler slagging, etc., which will lead to boiler safety problems; therefore, the evaluation of coal blending results should comprehensively focus on boiler safety, economy and environmental protection sex

Method used

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  • Coal blending combustion evaluation method and system
  • Coal blending combustion evaluation method and system
  • Coal blending combustion evaluation method and system

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Experimental program
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Embodiment 1

[0091] Such as figure 1 , 2 As shown, in step 1000, the data acquisition module 200 synchronously automatically collects relevant index data, and the relevant index data includes at least one of boiler combustion result data, various index data of coal entering the furnace, and power generation. The relevant index data can be divided into two categories, including at least one of the basic parameters and the effect parameters. Basic parameters are input parameters, which refer to parameters that have a decisive influence on the operation mode of the unit and the safe, economic and environmental protection operation of the unit. Once the basic parameters change, the unit operation mode must be adjusted accordingly to adapt to this change, generally including load , Coal type. Effect-type parameters, that is, output parameters, are parameters that characterize the performance of the unit. These parameters are not adjustable and are the response to the boiler combustion effect. ...

Embodiment 2

[0104] The system generates an evaluation analysis report based on the evaluation of the program and automatically collected relevant index data, which is convenient for providing optimization feedback suggestions for fuel management, and provides specific and targeted guidance.

[0105] The system synchronously collects SIS system data in real time, combines the real-time blending situation of the unit, and the combustion performance feedback data, establishes a database of blended combustion and operation, and uses the big data mining technology based on case library optimization to mine the conditions of the unit under different loads and different coal types. The best operating mode under.

[0106] Based on the coal bunker dynamic monitoring function described above, the system will automatically count the operating cycle of each coal type milled by each coal mill, and provide a reference for the regular change of coal types, such as high volatile coal types in one coal mill Af...

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Abstract

The invention provides a coal blending combustion evaluation method and system, wherein the method comprises the steps of synchronously and automatically collecting the related index data, and also comprises the following steps of building a blending combustion database and an operation database; and evaluating a blending combustion scheme and the execution according to the relevant index data inthe blending combustion database. According to the coal blending combustion evaluation method provided by the invention, a calculation model is established according to the quality information of thefired coal and the boiler combustion effects under different loads, and the coal blending combustion scheme is evaluated, so that a thermal power enterprise is helped to find the safe, economic and environment-friendly coal blending combustion scheme with the optimal effect.

Description

Technical field [0001] The invention relates to the field of fuel management, in particular to an evaluation method and system for blending coal blending. Background technique [0002] Fuel cost is the most important operating cost in the production and operation of thermal power plants or units. Coal consumption for power supply reflects the energy efficiency level of thermal power plants or units. Under stable coal quality conditions, it is usually a relatively stable value. Subject to the influence of supply and demand in the coal market, the price difference of fuel purchased from different coal mines is A variable that fluctuates in real time makes the operating costs of thermal power plants vary greatly under different coal blending ratios. This is also the fundamental motivation for blending coal blending in thermal power plants. [0003] At present, the boilers of thermal power plants are selected according to the corresponding design coal types. When the coal quality exce...

Claims

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Application Information

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IPC IPC(8): G06Q10/06G06Q50/06G06F16/2457
CPCG06Q10/0639G06Q50/06G06F16/2457
Inventor 崔修强赵学山孔凡义李其浩郭德宇
Owner HUADIAN POWER INTERNATIONAL CORPORATION LTD
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