SE8602249L - STEEL BOAT WITH CATALYTIC Flue gas Treatment AND PROCEDURE FOR OPERATING THE BOILER - Google Patents
STEEL BOAT WITH CATALYTIC Flue gas Treatment AND PROCEDURE FOR OPERATING THE BOILERInfo
- Publication number
- SE8602249L SE8602249L SE8602249A SE8602249A SE8602249L SE 8602249 L SE8602249 L SE 8602249L SE 8602249 A SE8602249 A SE 8602249A SE 8602249 A SE8602249 A SE 8602249A SE 8602249 L SE8602249 L SE 8602249L
- Authority
- SE
- Sweden
- Prior art keywords
- economiser
- line
- valve
- gas treatment
- pump
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B37/00—Component parts or details of steam boilers
- F22B37/008—Adaptations for flue gas purification in steam generators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8621—Removing nitrogen compounds
- B01D53/8625—Nitrogen oxides
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
- F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
- F22D1/02—Feed-water heaters, i.e. economisers or like preheaters with water tubes arranged in the boiler furnace, fire tubes, or flue ways
- F22D1/12—Control devices, e.g. for regulating steam temperature
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
- Y02C20/00—Capture or disposal of greenhouse gases
- Y02C20/10—Capture or disposal of greenhouse gases of nitrous oxide (N2O)
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
Abstract
Two bypass lines (12, 14) are provided between the feed-water inlet line (5) into the economiser (6) of the steam generator and the outlet line (8) from the economiser. The line (12) more remote from the economiser contains a valve (13), preferably a modulating valve, while the bypass line (14) connected closer to the economiser contains a circulation pump (15). If the steam generator is operated in an upper load range from full load down to, for example, 70%, the valve (13) remains closed and the pump (15) is stationary. At lower loads, the pump (15) is allowed to deliver heated feed water from the outlet line (8) to the inlet line (15) and the valve (13) is kept more or less open. In this way, the load-dependent variation of the flue-gas temperature after the economiser is reduced and the operating conditions for a unit, fitted at this location, for catalytic flue-gas treatment are improved. <IMAGE>
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DK225185A DK154731C (en) | 1985-05-21 | 1985-05-21 | Steam boiler with catalytic flue gas treatment as well as boiler operation |
Publications (3)
Publication Number | Publication Date |
---|---|
SE8602249D0 SE8602249D0 (en) | 1986-05-16 |
SE8602249L true SE8602249L (en) | 1986-11-22 |
SE461421B SE461421B (en) | 1990-02-12 |
Family
ID=8111089
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8602249A SE461421B (en) | 1985-05-21 | 1986-05-16 | OPERATOR WITH CATALYTIC SMOKE GAS TREATMENT AND PROCEDURE FOR OPERATING THE BOILER |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE3616095C2 (en) |
DK (1) | DK154731C (en) |
SE (1) | SE461421B (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0549522B1 (en) * | 1991-12-23 | 1996-05-08 | ABB Management AG | Method of operating a forced circulation steam generator and forced circulation steam generator therefor |
DE4218016A1 (en) * | 1992-06-01 | 1993-12-02 | Siemens Ag | Method and device for controlling the flue gas temperature at the outlet of a steam generator |
EP0582898A1 (en) * | 1992-08-10 | 1994-02-16 | Siemens Aktiengesellschaft | Method of operating a steam and gas turbine system and system for carrying out the method |
EP0595009B1 (en) * | 1992-09-30 | 1996-01-10 | Siemens Aktiengesellschaft | Method of operating a power plant and power plant working according to this method |
US5361827A (en) * | 1992-12-29 | 1994-11-08 | Combustion Engineering, Inc. | Economizer system for vapor generation apparatus |
DE4310009C2 (en) * | 1993-03-27 | 1996-04-04 | Muellkraftwerk Schwandorf Betr | Method and device for generating steam in a thermal power station |
DE19929088C1 (en) * | 1999-06-24 | 2000-08-24 | Siemens Ag | Fossil fuel heated steam generator e.g. for power station equipment |
DE102013001440A1 (en) * | 2013-01-29 | 2014-07-31 | Rwe Power Aktiengesellschaft | Method for controlling flue gas temperature at brown coal boiler with downstream wet flue gas desulphurization, involves directly introducing cooling fluid into flue gas flow when actual temperature of flue gas exceeds reference value |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3818872A (en) * | 1973-06-29 | 1974-06-25 | Combustion Eng | Economizer bypass for increased furnace wall protection |
DE3344712C1 (en) * | 1983-12-10 | 1985-04-18 | Balcke-Dürr AG, 4030 Ratingen | Steam generator |
-
1985
- 1985-05-21 DK DK225185A patent/DK154731C/en not_active IP Right Cessation
-
1986
- 1986-05-13 DE DE3616095A patent/DE3616095C2/en not_active Expired - Fee Related
- 1986-05-16 SE SE8602249A patent/SE461421B/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DE3616095A1 (en) | 1986-11-27 |
DK154731B (en) | 1988-12-12 |
DK154731C (en) | 1989-05-08 |
SE8602249D0 (en) | 1986-05-16 |
DE3616095C2 (en) | 1993-11-25 |
SE461421B (en) | 1990-02-12 |
DK225185D0 (en) | 1985-05-21 |
DK225185A (en) | 1986-11-22 |
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Legal Events
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NAL | Patent in force |
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