US4981087A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for regulating the furnace output in incineration plants
Assignee: Martin GmbH fuer Umwelt und Energietechnik
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Filing: 1989-07-21
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Granted: 1991-01-01
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Expires: 2009-07-21
Abstract
Abstract The method for regulating the furnace output in incineration plants, particularly waste incineration plants, in which the O 2 moist content measured in the flue gas is used as an overriding reference value regulating variable for regulating the combustible material feed and the measured steam mass flow is used as a subordinate reference value regulating variable (10) for regulating the primary air supply, provides, according to a first variant, that the preselected O 2 moist reference value (7) is changed as a function of the furnace temperature (6) measured in the flue gas. This changed regulating variable (9) is fed to a regulator (13l ) which influences the combustible material feed and/or the grate drive.
Inventors
- 👤 Johannes J. E. Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:58
CPC Classifications
F; F23; F23N; F23N1/00; F23N1/02; F23N1/022; F22; F22B; F22B35/00; F23G; F23G5/00; F23G5/50; F23N1/08; F23N1/10; F23N1/102; F23N5/00; F23N5/003; F23N5/006; F23G2900/00; F23G2900/55; F23G2900/55008; F23N2225/00; F23N2225/04; F23N2225/06; F23N2225/08; F23N2225/10; F23N2233/00; F23N2233/06; F23N2233/08; F23N2235/00; F23N2235/02; F23N2235/06; F23N2241/00; F23N2241/18; F23N5/02
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
86 words
In a method for regulating the furnace output in incineration plants, particularly waste incineration plants, in which the O 2 moist content measured in the flue gas is used as an overriding reference value regulating variable for regulating the combustible material feed and the measured steam mass flow is used as a subordinate reference value regulating variable for regulating the primary air supply, the improvement comprises: changing the preselected O 2 moist reference variable as a function of the furnace temperature measured in the combustion gas.
Claim 2
Dependent Claim
86 words
In a method for regulating the furnace output in incineration plants, particularly waste incineration plants, in which the O 2 moist content measured in the flue gas is used as an overriding reference value regulating variable for regulating the combustible material feed and the measured steam mass flow is used as a subordinate reference value regulating variable for regulating the primary air supply, the improvement comprises: changing the preselected O 2 moist reference variable as a function of the furnace temperature measured in the combustion gas.
Claim 3
Dependent Claim
88 words
In a method for regulating the furnace output in incineration plants, particularly waste incineration plants, in which the O 2 moist content measured in the flue gas is used as an overriding reference value regulating variable for regulating the combustible material feed, and the furnace temperature measured in the flue gas is used as a subordinate reference value regulating variable for regulating the primary air supply, the improvement comprising: changing the preselected O 2 moist reference value is changed as a function of the measured steam mass flow.
Claim 4
Dependent Claim
88 words
In a method for regulating the furnace output in incineration plants, particularly waste incineration plants, in which the O 2 moist content measured in the flue gas is used as an overriding reference value regulating variable for regulating the combustible material feed, and the furnace temperature measured in the flue gas is used as a subordinate reference value regulating variable for regulating the primary air supply, the improvement comprising: changing the preselected O 2 moist reference value is changed as a function of the measured steam mass flow.
Claim 5
Dependent Claim
34 words
A method according to claim 1 or 2, wherein the rate of change of the measured temperature or steam mass flow values is taken into account when changing the O 2 moist reference value.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-12-31 | 1994-07-02 | 1995-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-12-31 | 1998-07-02 | 1999-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-12-31 | 2002-07-02 | 2003-01-01 | $7700.00 | Window Closed / Lapsed |