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Method and apparatus for controlling soot blowing using statiscical process control

A soot and statistical value technology, applied in the direction of boiler cleaning control device, electrical program control, general control system, etc., can solve problems such as errors and tedious data collection process

Active Publication Date: 2013-03-06
EMERSON PROCESS MANAGEMENT POWER & WATER SOLUTIONS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unfortunately, the large amount of data makes the data collection process tedious and prone to numerous errors in data collection

Method used

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  • Method and apparatus for controlling soot blowing using statiscical process control
  • Method and apparatus for controlling soot blowing using statiscical process control
  • Method and apparatus for controlling soot blowing using statiscical process control

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Embodiment Construction

[0021] A statistical process control system uses a consistent soot blowing operation for a heat exchange section such as a fuel fired boiler, collects heat absorption data for the heat exchange section and analyzes the distribution of the heat absorption data and various parameters of the heat absorption distribution in order to reconstruct Adjust the soot blowing operation. The statistical process control system can set a lower expected heat absorption limit and an upper expected heat absorption limit and compare them to an actual lower heat absorption limit and an upper actual heat absorption limit, respectively, to determine whether to readjust the soot blowing operation.

[0022] In general, the statistical process control systems described here are more reliable than first principles-based and empirical model-based approaches, and are easy to implement as statistical process control systems that only require heat absorption data for implementation. Also, since the statist...

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Abstract

The present invention discloses a statistical process control system that uses consistent soot blowing operations for a heat exchange section such as a fuel-fired boiler, collects heat absorption data of the heat exchange section and analyzes the distribution of the heat absorption data and the heat absorption Various parameters are distributed in order to re-tune the soot blowout operation. The statistical process control system can set an expected heat absorption lower limit and an expected heat absorption upper limit, and compare them to the actual heat absorption lower limit and the actual heat absorption upper limit, respectively, to determine whether the soot blowout operation should be readjusted. Optionally, the statistical process control system can also be used to determine permanent slagging of the heat exchange section.

Description

Technical field [0001] This patent relates generally to computer software, and more specifically to computer software for controlling soot blowout operations. Background technique [0002] Fuel-fired boilers are used in various industrial as well as non-industrial applications and are typically used to convert chemical energy into thermal energy by burning one of various types of fuel, such as coal, gas, oil, waste, etc. One exemplary use of fuel-fired boilers is in thermal power generators, where the fuel burned in the boiler is used to generate steam from water passing through a large number of piping lines in the boiler, which steam is then used in one or more generate electricity in a turbine. The output of a thermal generator is a function of the heat produced in the boiler, where this heat is determined by, among other things, the amount of fuel that can be burned per hour. In addition, the output of a thermal generator also depends on the heat transfer efficiency of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23J3/00G05B13/04G05B19/02
CPCF22B1/1846F23J3/023F28G15/003F22B37/56F23J3/02F28G1/16G05B17/02
Inventor 彼得·N·弗朗西诺程绪
Owner EMERSON PROCESS MANAGEMENT POWER & WATER SOLUTIONS