Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Method and device for evaluating outlet temperature optimization and energy-saving effects of coal mills

A technology of outlet temperature and energy-saving effect, which is applied in the direction of combustion method, design optimization/simulation, indirect carbon dioxide emission reduction, etc., can solve problems such as insufficient understanding, rough judgment conditions, and restrictions on the economy of coal mills, so as to achieve convenience and economy Effect

Active Publication Date: 2017-08-18
BEIJING YUANSHEN ENERGY SAVING TECH
View PDF2 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In related technologies, the direct blowing medium-speed coal mill is already a typical configuration of large-scale thermal power plants. Due to the good flow characteristics and internal structure of the medium-speed coal mill, dangerous conditions such as fire and explosion are very rare, but it is clearly given at present Coal mill outlet temperature operation control guidance value, resulting in limiting it to a lower level to prevent coal mill explosion accidents
[0003] However, the conditions for judging the temperature limit of the above-mentioned mill outlet are relatively rough, and the understanding of the dangerous working conditions of the pulverizing system is insufficient, which not only limits the economical operation of the coal mill, but also fails to fully guarantee the safety of the coal mill

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method and device for evaluating outlet temperature optimization and energy-saving effects of coal mills
  • Method and device for evaluating outlet temperature optimization and energy-saving effects of coal mills
  • Method and device for evaluating outlet temperature optimization and energy-saving effects of coal mills

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0043] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0044] The method and device for evaluating the energy-saving effect of optimization of coal mill outlet temperature according to the embodiments of the present invention will be described below with reference to the accompanying drawings.

[0045] figure 1 It is a flow chart of the method for evaluating the energy-saving effect of optimizing the outlet temperature of the coal mill according to the embodiment of the present invention.

[0046] Such as figure 1 As shown, the energy-saving evaluation method for optimizing the out...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a method and device for evaluating outlet temperature optimization and energy-saving effects of coal mills. The method comprises the following steps of: obtaining a heat balance equation; obtaining a relational expression between inlet air temperature change and outlet air temperature change of a coal mill according to the heat balance equation; obtaining a hot primary air increase proportion caused by outlet temperature promotion of the coal mill; obtaining a proportion of a hot primary air volume in a total primary air volume under any operation condition of a unit; and obtaining smoke discharging temperature reduction numerical value, at the outlet of an air-pre-heater, caused by temperature rise of the coal mill according to preset data of typical working conditions of the unit, so as to obtain energy-saving evaluation. According to the method, real-time fitting calculation can be carried out on the specific effect of the influences, on boiler thermal efficiency, of economic working-condition operation of the coal mill, so that the energy-saving effect can be intuitively fed back to the operation personnel, convenience is brought to the statistical management of economic and technological indexes, and simplicity and convenience are provided.

Description

technical field [0001] The invention relates to the technical field of coal pulverizers, in particular to a method and device for evaluating the energy-saving effect of coal pulverizer outlet temperature optimization. Background technique [0002] In related technologies, the direct blowing medium-speed coal mill is already a typical configuration of large-scale thermal power plants. Due to the good flow characteristics and internal structure of the medium-speed coal mill, dangerous conditions such as fire and explosion are very rare, but it is clearly given at present The coal mill outlet temperature operation control guideline value leads to limit it at a lower level to prevent coal mill explosion accidents. [0003] However, the judgment conditions of the above-mentioned mill outlet temperature limit are relatively rough, and the understanding of the dangerous working conditions of the pulverization system is insufficient, which not only limits the economical operation of...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G06F17/50G06Q10/06G06Q50/06F23K1/02F23N5/24
CPCF23K1/02F23K2201/1006F23N5/242G06F30/20G06Q10/0639G06Q50/06Y02E20/34Y02P90/82
Inventor 郭强金生祥李前宇隋晓峰赵岩李振华刘涛王晓辉陈虎亮温文光王海赵民政杨伴龙王彦龙孙锐郑妍
Owner BEIJING YUANSHEN ENERGY SAVING TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products