EP0831273A1 - Dampferzeuger - Google Patents
Dampferzeuger Download PDFInfo
- Publication number
- EP0831273A1 EP0831273A1 EP97113800A EP97113800A EP0831273A1 EP 0831273 A1 EP0831273 A1 EP 0831273A1 EP 97113800 A EP97113800 A EP 97113800A EP 97113800 A EP97113800 A EP 97113800A EP 0831273 A1 EP0831273 A1 EP 0831273A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- heat exchanger
- exchanger chamber
- boiler drum
- fed
- steam generator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
- F22B1/18—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines
- F22B1/1884—Hot gas heating tube boilers with one or more heating tubes
Definitions
- the invention relates to a steam generator with a Evaporator in the form of a vertically arranged tubular heat exchanger, in a tubular vertical housing between an upper and a lower horizontal floor a heat exchanger chamber is formed, which on the one hand by parallel vertical tubes interspersed between the Bottoms attached through and from top to bottom are flowed through by a hot gas, and which on the other hand, in the lower area via a downpipe, which a boiler drum arranged above the heat exchanger chamber is connected with a liquid medium, in particular Water, which is fed via an in the upper area the heat exchanger chamber from this riser pipe is returned to the boiler drum.
- the hot gas flows through the pipes while the liquid medium to be evaporated the pipes are led around.
- the appropriate cooling of the hot pipes and the upper tube sheet is usually done through a more or less emerging natural circulation, the but can only work when the vapor bubbles that form to kick off the circulation.
- the known generic Evaporators face the problem of protecting the top Tube bottom from overheating. Under the tube sheet can namely uncontrolled formation of vapor bubbles, the one adequate cooling of the floor and the upper pipe sections prevent. This can lead to impermissible thermal stresses.
- the upper tube sheet is more or less high Exposed to internal pressure and the pipes can be additional Trigger tension forces in this. All of this often leads damage to the upper tube sheet.
- the invention has for its object to specify how a steam generator of the type mentioned damage to upper tube sheet can be prevented.
- the present invention teaches that Heat exchange chamber below the upper floor one against this directional nozzle arrangement is provided, which one separated from the downpipe and equipped with a circulation pump Supply line with liquid medium from the boiler drum is fed. - Preferably is under the top Bottom in the heat exchanger chamber to the supply line connected pipe network provided with the nozzles intended.
- the figure shows a schematic representation of a Steam generator with an evaporator in the form of a vertical arranged tube heat exchanger.
- This is in one tubular vertical housing 1 between an upper horizontal Floor 2 and a lower horizontal floor 3 a Heat exchanger chamber 4 is formed.
- This heat exchanger chamber 4th is interspersed with parallel vertical tubes 5 which between the floors 2, 3 these interspersed and attached a hot gas flows through it from top to bottom (cf. Arrows 6). This flows above and below the bottoms 2, 3 Gas through the tubular vertical housing 1.
- the heat exchanger chamber 4 In the lower Area is the heat exchanger chamber 4 with a downpipe 7 a liquid medium, namely water.
- the downpipe is arranged on a above the heat exchanger chamber 4 Boiler drum 8 connected, as usual, an upper Saturated steam outlet 9 has. The liquid medium is then over one in the upper area of the heat exchanger chamber 4 from this riser pipe 10 led out into the boiler drum 8 returned.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Steam Or Hot-Water Central Heating Systems (AREA)
Abstract
Description
Claims (2)
- Dampferzeuger mit einem Verdampfer in Form eines vertikal angeordneten Rohrwärmetauschers, bei dem in einem rohrförmigen Vertikalgehäuse zwischen einem oberen und einem unteren horizontalen Boden eine Wärmetauscherkammer gebildet ist, welche einerseits von parallelen vertikalen Rohren durchsetzt ist, die zwischen den Böden diese durchsetzend befestigt und von oben nach unten von einem heißen Gas durchströmt sind, und welche andererseits im unteren Bereich über ein Fallrohr, das an eine oberhalb der Wärmetauscherkammer angeordnete Kesseltrommel angeschlossen ist, mit einem Flüssigmedium, insbesondere Wasser, gespeist ist, welches über ein im oberen Bereich der Wärmetauscherkammer aus dieser herausgeführtes Steigrohr in die Kesseltrommel zurückgeführt ist, dadurch gekennzeichnet, daß in der Wärmetauscherkammer (4) unterhalb des oberen Bodens (2) eine gegen diesen gerichtete Düsenanordnung (11) vorgesehen ist, die über eine vom Fallrohr (7) getrennte, mit einer Umwälzpumpe (12) ausgerüstete Versorgungsleitung (13) mit Flüssigmedium aus der Kesseltrommel (8) gespeist ist.
- Dampferzeuger nach Anspruch 1, dadurch gekennzeichnet, daß unter dem oberen Boden (2) in der Wärmetauscherkammer (4) ein an die Versorgungsleitung (13) angeschlossenes, mit den Düsen (11) versehenes Rohrnetz (14) vorgesehen ist.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1996138851 DE19638851C1 (de) | 1996-09-21 | 1996-09-21 | Dampferzeuger |
| DE19638851 | 1996-09-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP0831273A1 true EP0831273A1 (de) | 1998-03-25 |
Family
ID=7806520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP97113800A Withdrawn EP0831273A1 (de) | 1996-09-21 | 1997-08-09 | Dampferzeuger |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0831273A1 (de) |
| DE (1) | DE19638851C1 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105953198A (zh) * | 2016-06-05 | 2016-09-21 | 侴乔力 | 虹吸循环余热蒸汽锅炉 |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10117989C1 (de) * | 2001-04-10 | 2002-05-23 | Alstom Power Energy Recovery Gmbh | Dampferzeuger |
| US20120247406A1 (en) * | 2011-03-28 | 2012-10-04 | Alstom Technology Ltd. | Method of controlling drum temperature transients |
| US9982881B2 (en) | 2015-04-22 | 2018-05-29 | General Electric Technology Gmbh | Method and system for gas initiated natural circulation vertical heat recovery steam generator |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1973968A (en) * | 1933-01-23 | 1934-09-18 | Combustion Eng Corp | Waste heat boiler |
| US2048308A (en) * | 1935-08-01 | 1936-07-21 | Bigelow Company | Waste heat boiler |
| FR953613A (fr) * | 1947-08-11 | 1949-12-09 | Générateur de vapeur à chauffage par chaleur perdue | |
| US2682861A (en) * | 1949-11-14 | 1954-07-06 | Babcock & Wilcox Co | Gas tube boiler construction |
| DE2754375A1 (de) * | 1977-12-07 | 1979-06-13 | Siegener Ag Geisweid | Abhitzekessel, insbesondere hinter chemischen reaktoren |
| EP0126801A2 (de) * | 1983-05-25 | 1984-12-05 | State Industries, Inc. | Wassererhitzer |
| EP0219605A1 (de) * | 1985-09-18 | 1987-04-29 | Borsig GmbH | Rohrbündelwärmetauscher |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE442558C (de) * | 1927-04-04 | Wilhelm Mathiesen Dr | Heizrohr-Dampferzeuger, insbesondere fuer hohen Druck |
-
1996
- 1996-09-21 DE DE1996138851 patent/DE19638851C1/de not_active Expired - Fee Related
-
1997
- 1997-08-09 EP EP97113800A patent/EP0831273A1/de not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1973968A (en) * | 1933-01-23 | 1934-09-18 | Combustion Eng Corp | Waste heat boiler |
| US2048308A (en) * | 1935-08-01 | 1936-07-21 | Bigelow Company | Waste heat boiler |
| FR953613A (fr) * | 1947-08-11 | 1949-12-09 | Générateur de vapeur à chauffage par chaleur perdue | |
| US2682861A (en) * | 1949-11-14 | 1954-07-06 | Babcock & Wilcox Co | Gas tube boiler construction |
| DE2754375A1 (de) * | 1977-12-07 | 1979-06-13 | Siegener Ag Geisweid | Abhitzekessel, insbesondere hinter chemischen reaktoren |
| EP0126801A2 (de) * | 1983-05-25 | 1984-12-05 | State Industries, Inc. | Wassererhitzer |
| EP0219605A1 (de) * | 1985-09-18 | 1987-04-29 | Borsig GmbH | Rohrbündelwärmetauscher |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105953198A (zh) * | 2016-06-05 | 2016-09-21 | 侴乔力 | 虹吸循环余热蒸汽锅炉 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE19638851C1 (de) | 1998-02-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE DE FI FR GB IE IT |
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| AX | Request for extension of the european patent |
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| 17P | Request for examination filed |
Effective date: 19980313 |
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| AKX | Designation fees paid |
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| RBV | Designated contracting states (corrected) |
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| 17Q | First examination report despatched |
Effective date: 19990507 |
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| GRAG | Despatch of communication of intention to grant |
Free format text: ORIGINAL CODE: EPIDOS AGRA |
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| GRAG | Despatch of communication of intention to grant |
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| GRAH | Despatch of communication of intention to grant a patent |
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| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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| 18D | Application deemed to be withdrawn |
Effective date: 20000328 |