Power station boiler steam soot blowing system and intelligent leak detection identification method thereof

A soot blowing system, power plant boiler technology, applied in lighting and heating equipment, using liquid/vacuum degree for liquid tightness measurement, by measuring the increase and deceleration rate of fluid, etc., can solve the problems of poor reliability and complex logic, and achieve Strong practicability and the effect of overcoming time lag

Active Publication Date: 2021-06-04
XIAN THERMAL POWER RES INST CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, as the boiler load changes and the mechanical wear of the soot blower, the running time of each soot blower is obviously not a fixed number, and there is obviously an error in setting a constant time number compared with the running time of the soot blower. Alarm, and the logic is more complicated and the reliability is poor

Method used

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  • Power station boiler steam soot blowing system and intelligent leak detection identification method thereof
  • Power station boiler steam soot blowing system and intelligent leak detection identification method thereof
  • Power station boiler steam soot blowing system and intelligent leak detection identification method thereof

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Embodiment Construction

[0045] The present invention is further described below in conjunction with accompanying drawing:

[0046] A system process for intelligent leak detection and identification of power plant boiler steam soot blowing system such as figure 1 As shown, the principle of leak detection and identification is as follows figure 2 As shown, the boiler coal quantity, unit load and boiler MFT signals are extracted in the unit DCS control system.

[0047] Draw up the identification program, after starting the soot blowing program, the program will automatically open the 301, 302, 303, 304, 305, 306 drain control valves

[0048] Establish a start-up leak detection identification program. If the program detects that the boiler is not ignited in the current state, the program does not judge the start-up permission conditions of the soot blowing system, and directly executes the main program and performs simulation, that is, the program automatically opens 301, 302, 303, and 304 , 305, 306 ...

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Abstract

A power station boiler steam soot blowing system and an intelligent leak detection identification method thereof involve an air inlet pipe, a desuperheating water inlet pipe, a soot blower main pipeline, soot blower branch pipelines and soot blowers. The air inlet pipe and the desuperheating water inlet pipe are both connected to one end of the soot blower main pipeline, the other end of the soot blower main pipeline is connected with the multiple soot blower branch pipelines, and each soot blower branch pipeline is provided with the multiple soot blowers. According to the technology, a flow measuring device, a temperature measuring device and a cable do not need to be additionally arranged, the technology can be achieved under the existing conditions, the advantages of being economical, high in implementability and the like are achieved, and after implementation, intelligent leak detection identification before operation, during operation and after operation can be conducted on the system in real time in an online mode.

Description

technical field [0001] The invention belongs to the technical field of coal-fired power generation, and in particular relates to a power plant boiler steam soot blowing system and an intelligent leak detection and identification method thereof. Background technique [0002] For coal-fired boilers in power plants, the heating surface of the boiler is an important part. Its safety and reliability are the prerequisites for the economical and safe operation of the unit. During the operation, the water-cooled wall of the furnace is coked, the high-temperature superheater and reheater are coked, and the heating area at the tail is grayed out. It is a common and unavoidable problem, and it is also a difficult problem in the operation of coal-fired power plant boilers. Especially when burning coal with strong fouling properties, ash and coking on the heating area are the most common phenomena. Deposits on the heating surface of the boiler The thermal conductivity of the dust deposit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23J1/00G01M3/26
CPCF23J1/00G01M3/26
Inventor 吴寿贵刘继锋赵如宇王林刘岗杨博赵景涛高奎赵晖王红雨孟颖琪高景辉张亚夫何信林
Owner XIAN THERMAL POWER RES INST CO LTD
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