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Energy-saving evaluation mode for coal-fired grate-fired industrial boiler based on numerical simulation

An industrial boiler and numerical simulation technology, which is applied in special data processing applications, computer-aided design, design optimization/simulation, etc., can solve problems such as low coal utilization, energy waste, backward combustion technology and combustion equipment, and achieve energy saving Evaluation and analysis results are accurate and precise to evaluate the effect of energy saving

Pending Publication Date: 2020-11-10
CHINA ELECTRONICS STANDARDIZATION INST +1
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Problems solved by technology

my country's coal utilization level is still very low, because the combustion technology and combustion equipment are still relatively backward, resulting in waste of energy and reduced benefits of power plants

Method used

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Embodiment Construction

[0024] The technical scheme of this patent will be further described in detail in conjunction with specific implementation below. The technical features or functional principles of the present invention that are not described in detail are all prior art adopted.

[0025] The energy-saving evaluation mode of coal-fired seam-fired industrial boilers based on numerical simulation in the present invention includes the following steps:

[0026] 1) Establish a numerical calculation model of combustion in a coal-fired seam: use a one-dimensional unsteady model as the numerical calculation model, use PHOENICS to establish a numerical calculation model for combustion in a coal-fired seam, and use a one-dimensional unsteady model when the initial conditions and external boundary conditions are the same The state fixed window model approximately describes the combustion process of the coal-fired seam on the continuous grate, and the primary wind and upper radiation conditions are used as ...

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Abstract

The invention discloses an energy-saving evaluation mode for a coal-fired grate-fired industrial boiler based on numerical simulation, and the mode comprises the following steps: 1), building a combustion numerical calculation model in a coal-fired grate; 2) setting a coal-fired layer calculation grid; 3) carrying out bed primary air distribution; 4) meshing the hearth model; (5) carrying out FLUENT calculation; 6) analyzing simulation results. The invention belongs to the technical field of boiler energy-saving evaluation, and particularly provides a coal-fired grate firing industrial boilerenergy-saving evaluation mode based on numerical simulation, which is used for carrying out numerical simulation on a boiler combustion process, is convenient for finding problems existing in boiler heat supply, improves the boiler energy-saving efficiency and accurately evaluates the boiler energy-saving property.

Description

technical field [0001] The invention belongs to the technical field of boiler energy-saving evaluation, and specifically refers to an energy-saving evaluation mode of coal-fired bed-fired industrial boilers based on numerical simulation. Background technique [0002] Industrial boilers are major energy consumers in my country, consuming about 400 million tons of coal each year, accounting for one-third of the country's raw coal production. At present, my country's industrial boilers are mainly layer fired, and chain grate boilers are the main ones. The design efficiency is generally between 72% and 80%. To 50%, the waste of energy is quite serious, and about 60 million tons of coal is used for nothing every year. Energy is an important material basis of the national economy and a basic condition for human survival. The electric power industry is an important part of the energy industry. China is a big country of coal production and consumption. At present, coal provides 75%...

Claims

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Application Information

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IPC IPC(8): G06F30/20G06F119/08
CPCG06F30/20G06F2119/08
Inventor 赵立华杨檬刘学敏杨宇涛赵新华
Owner CHINA ELECTRONICS STANDARDIZATION INST
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