Method for the controlled operation of regeneratively heated industrial furnace, control unit and industrial furnace

An industrial boiler and heat storage technology, which is applied in the direction of furnace control devices, combustion control, lighting and heating equipment, etc., can solve the problems of unavailable, uncontrollable thermal value fluctuations, temperature fluctuations, etc., and achieve reliable determination and reliable oxygen consumption Effect

Inactive Publication Date: 2016-01-13
STG COMBUSTION CONTROL
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] For fuels whose thermal value cannot be measured online, which however have large uncontrollable thermal value fluctuations, it also does not offer the possibility of quickly equalizing thermal value fluctuations by correspondingly changing the fuel quantity itself
The result is significantly greater mass-induced temperature fluctuations and / or energy efficiency fluctuations

Method used

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  • Method for the controlled operation of regeneratively heated industrial furnace, control unit and industrial furnace
  • Method for the controlled operation of regeneratively heated industrial furnace, control unit and industrial furnace
  • Method for the controlled operation of regeneratively heated industrial furnace, control unit and industrial furnace

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Embodiment Construction

[0048] figure 1 A simplified diagram shows a regenerative heating industrial boiler 100 with a furnace chamber 10 , the upper furnace chamber 1 being controlled as the controlled object, wherein the lower furnace chamber 2 has a glass melting tank (not shown in detail). The glass contained in the glass melting bath is heated by the furnace chamber 10 above the melting temperature, and is melted and properly processed for the manufacture of glass bottles and the like. The industrial boiler 100 is heated here, the upper furnace 1 is injected with fuel here in the form of gas via a plurality of side-mounted fuel injectors 20 . The fuel injector 20 here represents the left injector 20 . The other fuel injector 20' represents here the right injector 20'. For reasons of simplification, the same reference numbers are used below for identical or similar components or components with the same or similar function. For example, a number of six syringes 20 , 20 ′ can be arranged on the...

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PUM

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Abstract

The invention relates to a method for the controlled operation of a regeneratively heated industrial furnace (100), comprising a furnace chamber (10), preferably for controlling the fuel energy supplied to the furnace chamber (10) for a fuel of varying calorific value, comprising the steps of: - injecting fuel into the furnace chamber (10) by way of at least one fuel injector (20, 20'), which is designed for the injection of fuel, in particular virtually without any combustion air, - periodically alternating conduction of on the one hand combustion air to the furnace chamber (10) in a first period phase and on the other hand exhaust gas (EG) from the furnace chamber (10) in a second period phase, separately from the fuel, wherein - a supply of the combustion air or such like oxidizing agent is set and a residual amount of oxygen in the exhaust gas is determined. It is provided according to the invention that - an oxygen consumption of the supplied combustion air and the residual oxygen that is converted in the combustion of the fuel is determined and - the oxygen consumption is used as a measure of an amount of fuel energy that is used, wherein a stream of fuel for injection is set in such a way that the oxygen consumption is controlled to a predetermined value of the oxygen consumption.

Description

technical field [0001] The invention relates to a method according to the preamble of claim 1 for the controlled operation of a regeneratively heated industrial boiler, in particular with a melting tank, in particular for glass, and a method according to the preamble of claim 15 A control device configured to perform the method. The invention also relates to an industrial boiler according to the preamble of claim 17 . Background technique [0002] In principle, industrial boilers are not restricted to glass production. Industrial boilers of the type mentioned at the outset can also be used, for example, in metal production or the like. However, regenerative industrial boilers of the type mentioned at the outset have proven to be particularly suitable for glassmaking for melting glass. [0003] So far, only PID controllers have been entrusted to control the regenerative glass melting furnace, that is, usually by means of the control of the upper furnace in the furnace cham...

Claims

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Application Information

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IPC IPC(8): F27B3/00C03B5/235F23N5/00F27B3/20F27D19/00F27D99/00
CPCC03B5/235C03B5/237F23N5/003F27B3/002F27B3/20F27D19/00F27D99/0003F27D2019/0012F27D2019/0034Y02P40/50
Inventor P.赫曼
Owner STG COMBUSTION CONTROL
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