Unlock instant, AI-driven research and patent intelligence for your innovation.

Method and device for adjusting pressure

A technology for adjusting pressure and pressure value, applied in the field of pressure adjustment, which can solve the problems of optimal control of primary air pressure and increased energy consumption of primary air system, so as to reduce exhaust gas temperature and plant power consumption rate, reduce energy consumption, and improve boiler efficiency. efficiency effect

Active Publication Date: 2019-04-26
CHINA SHENHUA ENERGY CO LTD +2
View PDF10 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The embodiment of the present invention provides a method and device for adjusting pressure, so as to at least solve the technical problem that the energy consumption of the primary air system increases due to the inability to effectively optimize the primary air pressure in the prior art

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 adjusting pressure
  • Method and device for adjusting pressure
  • Method and device for adjusting pressure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] According to an embodiment of the present invention, an embodiment of a method for adjusting pressure is provided. It should be noted that the steps shown in the flowcharts of the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions, and, Although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that shown or described herein.

[0027] figure 1 is a flowchart of a method for adjusting pressure according to an embodiment of the present invention, such as figure 1 As shown, the method includes the following steps:

[0028] Step S102, obtaining the opening values ​​of the hot air dampers of multiple coal mills;

[0029] Step S104, determining the difference between the opening value and a preset reference value;

[0030] Step S106, if the above-mentioned difference is not within the preset dead zone range, adjust the pressure value of...

Embodiment 2

[0052] According to an embodiment of the present invention, an embodiment of a device for implementing the above method for adjusting pressure is also provided, Figure 4 is a structural schematic diagram of a device for adjusting pressure according to an embodiment of the present invention, such as Figure 4 As shown, the above-mentioned device for regulating pressure includes: a first acquisition module 40, a determination module 42 and an adjustment module 44, wherein:

[0053] The first acquisition module 40 is used to acquire the opening value of the hot air damper of multiple coal mills; the determination module 42 is used to determine the difference between the above opening value and the preset reference value; the adjustment module 44, It is used to adjust the pressure value of the primary air main pipe until the above-mentioned difference is within the above-mentioned dead-zone range when the above-mentioned difference is not within the preset dead-zone range, wherei...

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 adjusting pressure. The method includes the steps that the opening values of hot air valves of multiple coal mills are acquired; the difference value between the opening values and a preset reference value is determined; and under the condition that the difference value is not within a preset dead zone range section, the pressure value of a primary air mother tube is adjusted until the difference value is within the dead zone range section, wherein the dead zone range section is the range section determined according to the maximum dead zone value and the minimum dead zone value. The technical problems that as optimization control over primary air pressure cannot be effectively carried out in the prior art, the energy consumption of a primaryair system is improved are solved.

Description

technical field [0001] The invention relates to the field of optimal control of power plants, in particular to a method and device for regulating pressure. Background technique [0002] At present, the pressure control variable of the conventional primary air main pipe comes from the main control command of the boiler, and the primary air pressure is automatically set according to the change curve of the set air pressure and the main control of the boiler. There is little correlation with the amount of coal, but under the automatic operation mode of AGC or frequent load changes, the operating state of the pulverizing system often cannot reach the economic load, that is, the number of coal mills operating under a certain load is not fixed, or the number of operating units is too large , while the air volume and temperature of the pulverizer are regulated by the hot and cold air damper. The more coal mills are in operation, the smaller the opening of the hot air damper of the ...

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
Patent Type & Authority Applications(China)
IPC IPC(8): F23N5/24F23K3/02F23L1/00
CPCF23K3/02F23K2203/201F23L1/00F23N5/24
Inventor 王停戈
Owner CHINA SHENHUA ENERGY CO LTD