CN1041438A - Heat recovery steam generator - Google Patents
Heat recovery steam generator Download PDFInfo
- Publication number
- CN1041438A CN1041438A CN89106681A CN89106681A CN1041438A CN 1041438 A CN1041438 A CN 1041438A CN 89106681 A CN89106681 A CN 89106681A CN 89106681 A CN89106681 A CN 89106681A CN 1041438 A CN1041438 A CN 1041438A
- Authority
- CN
- China
- Prior art keywords
- drum
- steam generator
- heat recovery
- heating surface
- recovery steam
- 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- Withdrawn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
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
- F22B1/1807—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 using the exhaust gases of combustion engines
- F22B1/1815—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 using the exhaust gases of combustion engines using the exhaust gases of gas-turbines
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B29/00—Steam boilers of forced-flow type
- F22B29/04—Steam boilers of forced-flow type of combined-circulation type, i.e. in which convection circulation due to the difference in specific gravity between cold and hot water is promoted by additional measures, e.g. by injecting pressure-water temporarily
Abstract
Be provided with the vertical waste heat steam generator of a drum (2), its drum is included in the circulatory system by down-comer (3), evaporimeter heating surface (1) and tedge (4) formation, in order under without the situation of circulating pump, to realize the water circulation, down-comer (3) links to each other with the influent header (7) of evaporimeter heating surface (1) by below pipeline section (29), in addition, tedge can link to each other with drum (2) or directly be connected with the hydrospace (11) of drum (2) by upper tubular section (9).
Description
The present invention relates to a kind of be located at after the gas turbine, be provided with the heat recovery steam generator of a drum at least, its drum is included a circulatory system that is made of at least one down-comer, at least one evaporimeter heating surface and at least one tedge in.
Heat recovery steam generator generally has two kinds of versions, i.e. natural recirculating type or forced cyclic type.During Natural Circulation, evaporimeter is restrained in the exhaust steam passage that is vertically set on a level and by down-comer and is linked to each other with at least one drum with tedge.Here can level or superheater vertically is set and economizer heating facial canal or other various heating surfaces that may exist.
In forced circulation structure, superheater, evaporimeter and economizer heating facial canal or other heating surfaces that may exist are horizontally set in the vertical exhaust steam passage.The evaporimeter heating surface links to each other with at least one drum with tedge by down-comer, circulating pump.
Guaranteeing that the circulating pump that the water in the evaporimeter follows takies in the process investment and the workload except that setting up at equipment, still is a failure factor in running.
Task of the present invention is to create a kind of heat recovery steam generator, and this heat recovery steam generator is located at after the gas turbine and possesses in the advantage that does not have to guarantee under the situation of circulating pump the water circulation.
Begin in the heat recovery steam generator of described pattern at this paper, this task is solved by following combination of features:
A) down-comer links to each other with the evaporimeter heating surface by a below pipeline section,
B) the evaporimeter heating surface is for being horizontally disposed with,
C) circulation is a Natural Circulation.
Because what adopt is horizontally disposed evaporimeter heating surface, so compact conformation of steam generator, the below pipeline section is guaranteed normally carrying out of water circulation, and needn't both need invest, make device structure complicated and can increase the circulating pump of equipment fault probability.
For the startup stage quicken the water circulation, in the down-comer system, be provided with an injector according to another feature of invention.The startup stage, by this injector by water (flow) direction confession additional water in the decline guard system.
According to another feature of invention, the startup stage, can be located in the ascending tube system and reach the purpose of quickening the water circulation to the playpipe of its water supply by one by water (flow) direction.
For the startup stage quicken the water circulation, another derived character according to invention is provided with one and supplies steam, water-vapor mixing body, gas in ascending tube system, as the device of nitrogen or other similar gas.
The measure of water circulation is that the connecting pipe that can end is set between the entrance and exit header of evaporimeter startup stage that last quickening.
Below, elaborate other details of the present invention by accompanying drawing with embodiment.
Be provided with the evaporimeter heating surface 1 of vertical structure, drum 2, down-comer system 3, an ascending tube system 4 and a feedwater piping 5 of setting up feed pump 6 as the heat recovery steam generator of invention object.On the water route, drum 2 joins with down-comer system 3.Down-comer system 3 imports influent header 7 by below pipeline section 29, and the tube system of evaporimeter heating surface 1 links to each other with influent header 7.Implication to " below pipeline section " can be done following understanding, that is, down-comer 3 drops on the plane of an influent header 7 that is lower than evaporimeter heating surface 1, and the result is that water was bottom-up flowing before entering header.Therefore, can be interpreted as a kind of water pocket to " below pipeline section ".The outlet side of evaporimeter heating surface 1 and outlet header 8 join.Ascending tube system 4 imports above-mentioned header 8 and links to each other with the vapor space 26 of drum 2 or directly link to each other with the hydrospace 11 of drum 2 by pipe-line system 10 by top pipeline section 9.Implication to " top pipeline section " can be done following understanding, that is, the height of steam-water mixture liquid level of water from be higher than drum 2 imports drum.
Feed pump 6 is extracted water out through feedwater piping 5 and is added to the hydrospace in the drum 11 from feed-tank or other feed-water vessel.
In order to quicken to start the water circulation on rank, can adopt following various system as starting supplementary means:
According to first derived scheme, be to establish an injector 12 in down-comer system 3, this injector is provided with disabling mechanism 14(for example a valve, a cock or other similar component by one) pipeline 13 join with feedwater piping 5.Owing to from feedwater piping 5, there is moisture stream to flow into down-comer system 3, therefore guaranteed dynamic exciting in the water circulation of when startup stage by the flow directions in the decline guard system 3.
According to second derived scheme, be that a water pump 16 is set in tributary pipeline 15, this pump connects together the injector 17 in down-comer system 3 and the ascending tube system 4.This pump provides boiler water by the water (flow) direction of ascending tube system in tedge system 4, the water circulation the startup stage of making obtains dynamic exciting and after reaching the quiet cycle state, can encourage by 16 eliminations that switch off the pump.
In category of the present invention, also possess a kind of possibility that pipeline 15 and pipeline 5 are connected together, accomplish the supply feedwater.Can remove water pump 16 in this case.Certainly also can from any other system, fetch water.
According to the third derived scheme, can be provided with disabling mechanism 19(as a valve, a cock or other similar component by one) pipeline 18 in ascending tube system 4, blast steam, nitrogen or a kind of other gas.By this measure can strengthen thermosyphon effect and can guarantee the startup stage in cyclic process obtain quickening.
According to the 4th kind of derived scheme, being provided with one can be by disabling mechanism 21(as a valve, a cock or other similar component) pipeline 22 that ends.Both this pipeline be connected the influent header 7 of evaporimeter heating surface 1 and outlet header 8.Owing between at least one influent header 7 of evaporimeter heating surface 1 and at least one outlet header 8, installed such connecting pipe of ending 22, when forming first steam bubble, by these water through heating are directly imported ascending tube system 4, reach purpose in the circulation of startup stage excitation water.
By rationally determining the dimensions of the tube system of evaporimeter heating surface 1, down-comer system 3 and ascending tube system 4, the thermosyphon effect of the water circulation to improve the startup stage has positive role.
In addition, as shown in the figure, adopt ribbed pipe also beneficial to evaporimeter heating surface 1.
By below pipeline section 29, preferably also by top pipeline section 9 and/or directly ascending tube system 4 is communicated with the hydrospace 11 of drum 2, can keep known structure form waste heat boiler structure constant and in circulation, save circulating pump.
When being located at heat recovery steam generator after the gas turbine, as shown in the figure, evaporimeter heating surface 1 level is located in the exhaust steam passage 23, and the waste gas of one or some gas turbines enters this passage by the arrow A direction.Also can be horizontally disposed with superheater heating surface 24 above or below evaporimeter heating surface 1, its entrance side links to each other with the vapor space 26 of drum 2 with a pipeline 25 by an influent header 30; Its outlet side leads to steam turbine by an outlet header 31 and a pipeline 27 that is provided with disabling mechanism 28.
Claims (7)
1, be located at after the gas turbine, be provided with the heat recovery steam generator of a drum at least, its drum is included a circulatory system that is made of at least one down-comer, at least one evaporimeter heating surface and at least one tedge in, it is characterized in that:
A) down-comer (3) links to each other with evaporimeter heating surface (1) by a below pipeline section (29),
B) evaporimeter heating surface (1) is for being horizontally disposed with,
C) circulation is a Natural Circulation.
According to the heat recovery steam generator of claim 1, it is characterized in that 2, evaporimeter heating surface (1) is made up of ribbed pipe.
According to the heat recovery steam generator of claim 1, it is characterized in that 3, tedge (14) links to each other with the vapor space (26) of drum (2) by top pipeline section (9) or directly is connected with drum (2).
According to the heat recovery steam generator of claim 1, it is characterized in that 4, tedge (14) directly is connected with the hydrospace (11) of drum (2).
5, according to the heat recovery steam generator of claim 1, it is characterized in that, an injector (17) is set in ascending tube system (4), water spray in ascending tube system (4), the water circulation the startup stage of with acceleration.
6, according to the heat recovery steam generator of claim 1, it is characterized in that, a device that sprays into steam, steam-water mixture, gas (as nitrogen or other similar gas) in ascending tube system (4) is set, the water circulation the startup stage of with acceleration.
7, according to the heat recovery steam generator of claim 1, it is characterized in that, between the influent header (7) of evaporimeter heating surface (1) and outlet header (8), the connecting pipe that can end (22) is set, the water circulation to quicken the startup stage.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ATA2116/88 | 1988-08-29 | ||
| AT2116/88A AT392683B (en) | 1988-08-29 | 1988-08-29 | HEAT STEAM GENERATOR |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1041438A true CN1041438A (en) | 1990-04-18 |
| CN1018574B CN1018574B (en) | 1992-10-07 |
Family
ID=3528112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN89106681A Expired CN1018574B (en) | 1988-08-29 | 1989-08-12 | Steam generator using waste heat |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP0357590B1 (en) |
| KR (1) | KR0142330B1 (en) |
| CN (1) | CN1018574B (en) |
| AT (1) | AT392683B (en) |
| DE (1) | DE58904955D1 (en) |
| DK (1) | DK169109B1 (en) |
| ES (1) | ES2043114T3 (en) |
| FI (1) | FI93055C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101684937B (en) * | 2003-01-31 | 2012-03-21 | 西门子公司 | Steam generator |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE1005793A3 (en) * | 1992-05-08 | 1994-02-01 | Cockerill Mech Ind Sa | INDUCED CIRCULATION HEAT RECOVERY BOILER. |
| DE4441008A1 (en) * | 1994-11-17 | 1996-05-23 | Siemens Ag | Plant for steam generation according to the natural circulation principle and method for initiating water circulation in such a plant |
| DE19524727C2 (en) * | 1995-07-07 | 1998-04-09 | Nem Bv | Natural heat recovery steam generator |
| DE19534802A1 (en) * | 1995-09-20 | 1997-04-10 | Nem Bv | Heat recovery steam generators, particularly when used behind a gas turbine |
| DE19806244A1 (en) * | 1998-02-16 | 1999-08-19 | Babcock Kraftwerkstech Gmbh | Steam generator with several tube bundles |
| EP2034137A1 (en) * | 2007-01-30 | 2009-03-11 | Siemens Aktiengesellschaft | Method for operating a gas and steam turbine plant and the correspondingly designed gas and steam turbine plant |
| US9518731B2 (en) | 2011-03-23 | 2016-12-13 | General Electric Technology Gmbh | Method and configuration to reduce fatigue in steam drums |
| US20120247406A1 (en) * | 2011-03-28 | 2012-10-04 | Alstom Technology Ltd. | Method of controlling drum temperature transients |
| RU2491477C1 (en) * | 2012-02-08 | 2013-08-27 | Открытое акционерное общество "Татнефть" имени В.Д. Шашина | Steam generator plant |
| WO2014108980A1 (en) | 2013-01-10 | 2014-07-17 | パナソニック株式会社 | Rankine cycle device and cogeneration system |
| WO2015140361A1 (en) | 2014-03-21 | 2015-09-24 | Foster Wheeler Energia, S.L.U. | Evaporation cycle of a natural circulation steam generator in connection with a vertical duct for upward gas flow |
| 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 |
| EP3835653A1 (en) * | 2019-12-11 | 2021-06-16 | Siemens Aktiengesellschaft | Hot evaporator refilling |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2031423A (en) * | 1929-03-15 | 1936-02-18 | Foster Wheeler Corp | Power plant |
| US2702026A (en) * | 1952-07-31 | 1955-02-15 | Svenska Maskinverken Ab | Steam generating plant utilizing heat emanating from many different sources |
| GB810900A (en) * | 1956-03-22 | 1959-03-25 | Vorkauf Heinrich | Improvements in steam generators with pressure-resistant, cylindrical casings |
| US4188916A (en) * | 1978-05-15 | 1980-02-19 | Deltak Corporation | Waste heat boiler for abstraction of heat energy from gaseous effluent containing corrosive chemical contaminants |
| US4316435A (en) * | 1980-02-27 | 1982-02-23 | General Electric Company | Boiler tube silencer |
-
1988
- 1988-08-29 AT AT2116/88A patent/AT392683B/en not_active IP Right Cessation
-
1989
- 1989-08-09 FI FI893754A patent/FI93055C/en not_active IP Right Cessation
- 1989-08-12 CN CN89106681A patent/CN1018574B/en not_active Expired
- 1989-08-18 EP EP89890214A patent/EP0357590B1/en not_active Expired - Lifetime
- 1989-08-18 ES ES89890214T patent/ES2043114T3/en not_active Expired - Lifetime
- 1989-08-18 DE DE8989890214T patent/DE58904955D1/en not_active Expired - Lifetime
- 1989-08-28 KR KR1019890012272A patent/KR0142330B1/en not_active IP Right Cessation
- 1989-08-28 DK DK422389A patent/DK169109B1/en not_active IP Right Cessation
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101684937B (en) * | 2003-01-31 | 2012-03-21 | 西门子公司 | Steam generator |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0357590B1 (en) | 1993-07-21 |
| FI93055C (en) | 1995-02-10 |
| FI893754A (en) | 1990-03-01 |
| AT392683B (en) | 1991-05-27 |
| ES2043114T3 (en) | 1993-12-16 |
| KR900003582A (en) | 1990-03-26 |
| CN1018574B (en) | 1992-10-07 |
| DK422389A (en) | 1990-03-01 |
| DK422389D0 (en) | 1989-08-28 |
| KR0142330B1 (en) | 1998-07-01 |
| ATA211688A (en) | 1990-10-15 |
| DE58904955D1 (en) | 1993-08-26 |
| DK169109B1 (en) | 1994-08-15 |
| EP0357590A1 (en) | 1990-03-07 |
| FI93055B (en) | 1994-10-31 |
| FI893754A0 (en) | 1989-08-09 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |