EP1590603A1 - Luftkühler für kraftwerksanlagen sowie anwendung eines solchen luftkühlers - Google Patents
Luftkühler für kraftwerksanlagen sowie anwendung eines solchen luftkühlersInfo
- Publication number
- EP1590603A1 EP1590603A1 EP04705821A EP04705821A EP1590603A1 EP 1590603 A1 EP1590603 A1 EP 1590603A1 EP 04705821 A EP04705821 A EP 04705821A EP 04705821 A EP04705821 A EP 04705821A EP 1590603 A1 EP1590603 A1 EP 1590603A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tube bundle
- air
- space
- air cooler
- chamber
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B21/00—Water-tube boilers of vertical or steeply-inclined type, i.e. the water-tube sets being arranged vertically or substantially vertically
- F22B21/22—Water-tube boilers of vertical or steeply-inclined type, i.e. the water-tube sets being arranged vertically or substantially vertically built-up from water tubes of form other than straight or substantially straight
- F22B21/26—Water-tube boilers of vertical or steeply-inclined type, i.e. the water-tube sets being arranged vertically or substantially vertically built-up from water tubes of form other than straight or substantially straight bent helically, i.e. coiled
-
- 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
- F22B1/1838—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 the hot gas being under a high pressure, e.g. in chemical installations
-
- 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
- F22B1/1869—Hot gas water tube boilers not provided for in F22B1/1807 - F22B1/1861
Definitions
- the present invention relates to the field of power plant technology. It relates to an air cooler according to the preamble of claim 1 and an application of such an air cooler.
- An air cooler of the type mentioned at the beginning is e.g. from the document EP-A1 -0 773 349 (see FIG. 5 there and the associated description).
- Fig. 1 - which corresponds to Fig. 1 of the publication mentioned - shows a combined power plant 40 with a gas and a steam turbine group.
- the gas turbine group consists of a compressor 1, a downstream combustion chamber 2 and a gas turbine 3 arranged downstream of the combustion chamber 2.
- a generator 4 is coupled to the gas turbine 3 and ensures the generation of electricity.
- the intake air 5 sucked in by the compressor 1 is conducted as compressed air 6 into the combustion chamber 2 and mixed there with injected liquid and / or gaseous fuel 7.
- the resulting fuel / air mixture is burned.
- the hot gas 8 flowing out of the combustion chamber 2 is then expanded in the gas turbine 3 with work performed.
- the exhaust gas 9 of the gas turbine 3 is then used in a waste heat steam generator 15 of the steam circuit downstream.
- the thermally stressed units must be cooled as effectively as possible. This is done with the help of an air cooler 10, which is a helical steam is the producer.
- the air cooler 10 is traversed by a portion of compressed air 11 which has been removed from the compressor 1 and which has already been warmed up considerably.
- the heat exchange within the air cooler 10 takes place with the partial water flow 12 flowing through the tubes of the helical steam generator.
- the compressed air 11 is therefore cooled on one side to such an extent that it is then passed as cooling air 13 into the units to be cooled. 1 shows the high-pressure cooler as an example.
- the partial water flow 12 in the cooling air cooler 10 is heated so strongly that the water evaporates.
- This steam 14 is then conducted according to FIG. 1 into the superheater part of a heat recovery steam generator 15. It increases the live steam 16 with which the steam turbine 17 is acted upon and thus serves to improve the efficiency of the entire system.
- the steam 14 generated in the cooling air cooler 10 is thus used optimally in terms of energy technology. It is also possible to mix the steam 14 directly with the live steam 16 or to guide it to the combustion chamber 2 or the gas turbine 3.
- the waste heat steam generator 15 is flowed through by the exhaust gas 9 of the gas turbine 3 which is still provided with a high calorific potential. Using a heat exchange process, these convert the feed water 18 entering the waste heat steam generator 15 into live steam 16, which then forms the working medium of the rest of the steam cycle. The calorically used exhaust gases then flow into the open as flue gas 19. The energy generated from the steam turbine 17 is converted into electricity via a further coupled generator 20.
- 1 shows a multi-shaft arrangement as an example. Of course, single-shaft arrangements can also be selected in which the gas bine 3 and the steam turbine 17 run on a shaft and drive the same generator.
- the exhaust steam 21 from the steam turbine 17 is condensed in a water- or air-cooled condenser 22.
- the condensate is then pumped by means of a pump, not shown here, into a feed water tank / degasser, which is arranged downstream of the condenser 22 and is not shown in FIG. 1.
- the feed water 18 is then pumped into the heat recovery steam generator 15 via a further pump or a partial flow 12 of the water is fed to the air cooler 10 via a control valve (not shown here).
- FIGS. 2 to 5 different types of air coolers are now proposed in FIGS. 2 to 5 and the associated description parts, which are particularly suitable for use in a combined power plant system according to FIG. 1.
- the cooling air to be cooled is guided in the vertical air cooler in a central tube from bottom to top past the helical tube bundle of the heat exchanger arranged in a pressure vessel, is deflected downward above the tube bundle and passes through it Tube bundle from top to bottom, giving off heat to the water vapor flowing in the tube bundle in counterflow (from bottom to top).
- the cooled cooling air emerging from the bottom of the tube bundle is redirected again and flows in the pressure vessel outside past the tube bundle, where it is removed from the pressure vessel.
- the outer wall of the pressure vessel Since, in these configurations of the air cooler, the inside of the outer wall of the pressure vessel is only exposed to the cooling air that has already cooled, the outer wall can be designed for a comparatively low operating temperature, which brings considerable advantages, for example in terms of the wall thickness required.
- the total air flow has to be redirected upwards, that a large ring channel is required for the redirected total air flow, and that the outlet connection located above does not match the turbine.
- the second deflection of the cooling air at the outlet of the tube bundle is dispensed with and the cooled air is taken directly below the tube bundle from the pressure vessel which also forms the container for the tube bundle.
- This variant has various technical advantages, but has the disadvantage that the walls of the pressure vessel become too hot because they are directly exposed to the uncooled air coming from the compressor, especially in the upper area of the air cooler.
- the essence of the invention is to use a mixed configuration of both known embodiments, in which the main part of the air flowing through the air cooler is taken unchanged at the same end of the air cooler where it is also supplied (as in FIG. A1-0 773 349), but in a bypass circuit, a small proportion of the cooled air after exiting the tube bundle flows outwards between the tube bundle and the outer wall of the pressure vessel and removes it there (as in FIGS. 2 to 4 of EP-A1 -0773 349). In this way, the outer wall of the pressure vessel is adequately cooled, but the main extraction of the cooling air nevertheless takes place at the bottom of the (vertical) air cooler.
- a preferred embodiment of the air cooler according to the invention is characterized in that the separate connecting means encompass at least one outlet connection opening into the third space from the outside and a connecting pipe. summarize, which connects the at least one outlet nozzle with the air outlet nozzle, and that the connecting tube ends within the air outlet nozzle in a diffuser.
- the outlet connection belonging to the bypass can protrude into the third room.
- a plurality of outlet connections can also be provided, which are collected on a connecting pipe.
- annular gap and the separate connecting means are dimensioned such that the bypass air flow flowing through the annular gap accounts for approximately 10% of the total air flow flowing through the air cooler.
- a water inlet chamber connected to the side of the tube bundle facing the second chamber and a steam outlet chamber connected to the side of the tube bundle facing the third space are preferably arranged in the area of the second pressure vessel.
- the air cooler is vertical and if the second room is at the bottom and the first and third rooms are at the top.
- FIG. 1 shows the simplified system diagram of a combined cycle power plant with cooling air cooler, as is suitable for the use of the air cooler according to the invention
- Fig. 2 shows a longitudinal section through an air cooler according to a preferred embodiment of the invention.
- the air cooler 10 has an elongated, vertical, essentially cylindrical pressure vessel 39, which is closed at the lower and upper ends by an arched bottom.
- an arrangement which is coaxial with the longitudinal axis of the air cooler 10 and comprises a cylindrical central tube 24, a helical tube bundle 25 surrounding the central tube 24 and a cylindrical inner jacket 26 surrounding the tube bundle 25.
- the central tube 24 opens at the upper end of the coaxial arrangement 24, 25, 26 into a first space 33, which adjoins the tube bundle 25 and is closed off from the outside by the inner jacket 26.
- the central tube 24 is through at the lower end of the coaxial arrangement 24, 25, 26 a second space 34 adjoining the tube bundle 25 can be supplied with air from outside the pressure vessel 39 via an air inlet connection 23.
- the jacket surrounding the tube bundle 25 and the first space 33 is designed as an inner jacket 26 separate from the pressure vessel 39.
- the inner jacket 26 is surrounded concentrically by the cylindrical outer jacket 28 of the pressure vessel 39 to form a ring gap 27 between the inner jacket 26 and the outer jacket 28.
- a third space 35 is formed at the upper end of the pressure vessel 39 and communicates with the second space 34 via the annular gap 27.
- a water inlet chamber 31 is arranged on the pressure vessel 39 in the region of the lower second space 34, which is connected to the lower end of the tube bundle 25 via feed lines (only partially shown in FIG. 2) and via a control valve 37 from the outside water receives.
- a steam outlet chamber 32 is arranged in the region of the upper third space 35, which is connected to the upper end of the tube bundle 25 via feed lines and via which steam can be removed from the tube bundle 25.
- the second room 34 is accessible from the outside via an air outlet connection 29.
- the third space 35 is connected to this air outlet 29 in the manner of a bypass via a separate connecting pipe 30, which is connected on the input side to an outlet 36 led out of the third space 35 and ends on the output side in a diffuser 38 arranged coaxially in the tubular air outlet 29.
- air is conducted from below through the air inlet connection 23 into the central tube 24 (solid double arrow in FIG. 2), which emerges above the tube bundle 25 from the central tube 24 into the first space 33 at a pressure p1, according to the in FIG Fig. 2 drawn bent arrows is deflected and flows through the tube bundle 25 downwards.
- the air gives off heat to the water flowing in countercurrent in the tube bundle 25 and, when cooled, exits from the lower end of the tube bundle 25 into the second space 34 at a pressure p2. Due to the pressure losses in the tube bundle, the pressure p2 is less than the pressure p1.
- the main part of the cooled air present in the second room emerges from the pressure vessel 39 through the air outlet connection 29 and is used, for example according to FIG. 1, for cooling certain system parts.
- Annular gap 27 has a width of 20 mm, for example.
- a pressure p3 prevails in the third space 35, which is smaller than the pressure p2 due to the pressure losses in the annular gap 27.
- the bypass air flows from the third space 35 via the outlet connection 36, the connecting pipe 30 and the diffuser 38 into the air outlet connection 29 arranged below and mixes there with the main air flow.
- Air outlet 29 reduces the static pressure in the air outlet 29 to a value less than p2.
- This driving pressure difference suction effect
- the desired bypass airflow e.g. 10% of the total airflow
- the wall thickness of the outer casing 28 or the pressure shell can be designed for the lower air temperature.
- the air cooler according to the invention is distinguished by the following advantages and characteristic properties:
- the reheating of the cooled airflow is smaller compared to the known jacket cooling with total airflow (e.g. 5K instead of 7K).
- the total pressure loss with the same tube bundle 25 and air outlet 29 is smaller compared to the known jacket cooling with total air flow.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
- Jet Pumps And Other Pumps (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10303341 | 2003-01-29 | ||
| DE10303341A DE10303341A1 (de) | 2003-01-29 | 2003-01-29 | Luftkühler für Kraftwerksanlagen sowie Anwendung eines solchen Luftkühlers |
| PCT/EP2004/050046 WO2004072544A1 (de) | 2003-01-29 | 2004-01-28 | Luftkühler für kraftwerksanlagen sowie anwendung eines solchen luftkühlers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1590603A1 true EP1590603A1 (de) | 2005-11-02 |
| EP1590603B1 EP1590603B1 (de) | 2012-10-17 |
Family
ID=32747497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP04705821A Expired - Lifetime EP1590603B1 (de) | 2003-01-29 | 2004-01-28 | Luftkühler für kraftwerksanlagen sowie anwendung eines solchen luftkühlers |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US7481265B2 (de) |
| EP (1) | EP1590603B1 (de) |
| JP (1) | JP4611969B2 (de) |
| CN (1) | CN100386562C (de) |
| DE (1) | DE10303341A1 (de) |
| ES (1) | ES2397837T3 (de) |
| PT (1) | PT1590603E (de) |
| WO (1) | WO2004072544A1 (de) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1808588A1 (de) * | 2006-01-14 | 2007-07-18 | Thermal PowerTec GmbH | Leistungs- und Wirkungsgradsteigerung in Gasturbinen- und Kombi-Anlagen |
| US8006651B2 (en) * | 2007-05-15 | 2011-08-30 | Combustion & Energy Systems Ltd. | Reverse-flow condensing economizer and heat recovery method |
| EP2067940B2 (de) | 2007-09-07 | 2023-02-15 | General Electric Technology GmbH | Verfahren zum Betrieb eines Kombikraftwerks sowie Kombikraftwerk zur Durchführung des Verfahrens |
| US8707709B2 (en) * | 2009-03-31 | 2014-04-29 | General Electric Company | Systems and methods for controlling compressor extraction cooling |
| DE102013017566A1 (de) * | 2013-10-22 | 2015-04-23 | Linde Aktiengesellschaft | Verwendung eines gewickelten Wärmeübertragers zur Erzeugung überhitzten Dampfs aus Verbrennungs- oder Abgasen bei Heizanlagen oder Verbrennungsmaschinen |
| US9291401B2 (en) | 2014-02-24 | 2016-03-22 | Combustion & Energy Systems Ltd. | Split flow condensing economizer and heat recovery method |
| US10641145B2 (en) * | 2014-11-19 | 2020-05-05 | Envirochasing Ip Holdings Pty Ltd | Extraction apparatus |
| US10774741B2 (en) * | 2016-01-26 | 2020-09-15 | General Electric Company | Hybrid propulsion system for a gas turbine engine including a fuel cell |
| US11168951B2 (en) | 2016-07-14 | 2021-11-09 | General Electric Company | Entrainment heat exchanger |
| EP3354878B1 (de) * | 2017-01-31 | 2019-08-28 | Ansaldo Energia Switzerland AG | Wärmetauscher für einen gasturbinenmotor |
| CN116817635B (zh) * | 2023-08-30 | 2023-11-10 | 山东豪迈机械制造有限公司 | 一种绕管式换热器 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3741167A (en) * | 1971-03-02 | 1973-06-26 | Foster Wheeler Corp | Sodium heated steam generator |
| US4471836A (en) * | 1982-01-15 | 1984-09-18 | Arthur C. Knox, Jr. | Vent condenser |
| CH665019A5 (de) * | 1984-08-21 | 1988-04-15 | Sulzer Ag | Waermeuebertrager, insbesondere zum kuehlen von gas aus einem hochtemperaturreaktor. |
| DE3501805A1 (de) * | 1985-01-21 | 1986-07-24 | Anton Steinecker Maschinenfabrik Gmbh, 8050 Freising | Behaelter fuer die kochung von maische oder wuerze |
| DE3529634A1 (de) * | 1985-08-19 | 1987-02-26 | Steinmueller Gmbh L & C | Waermetauscher fuer den waermetausch zwischen einem heissen gas und einem in rohrbuendelheizflaechen gefuehrten stroemungsmittel, insbesondere dampferzeuger fuer gasgekuehlte hochtemperaturreaktoren |
| DE3604288A1 (de) * | 1986-02-12 | 1987-08-13 | Uhde Gmbh | Vorrichtung als waermetauscher, insbesondere zur kuehlung von prozessgas oder zur erhitzung von dampf |
| DE4142375A1 (de) * | 1991-12-20 | 1993-07-08 | Siemens Ag | Kuehlluftkuehler fuer gasturbinen |
| DE19541914A1 (de) * | 1995-11-10 | 1997-05-15 | Asea Brown Boveri | Kühlluftkühler für Kraftwerksanlagen |
| DE10041413B4 (de) * | 1999-08-25 | 2011-05-05 | Alstom (Switzerland) Ltd. | Verfahren zum Betrieb einer Kraftwerksanlage |
-
2003
- 2003-01-29 DE DE10303341A patent/DE10303341A1/de not_active Withdrawn
-
2004
- 2004-01-28 JP JP2006501989A patent/JP4611969B2/ja not_active Expired - Fee Related
- 2004-01-28 CN CNB2004800031201A patent/CN100386562C/zh not_active Expired - Fee Related
- 2004-01-28 ES ES04705821T patent/ES2397837T3/es not_active Expired - Lifetime
- 2004-01-28 EP EP04705821A patent/EP1590603B1/de not_active Expired - Lifetime
- 2004-01-28 WO PCT/EP2004/050046 patent/WO2004072544A1/de not_active Ceased
- 2004-01-28 PT PT47058219T patent/PT1590603E/pt unknown
-
2005
- 2005-07-29 US US11/192,175 patent/US7481265B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2004072544A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2004072544A1 (de) | 2004-08-26 |
| US7481265B2 (en) | 2009-01-27 |
| DE10303341A1 (de) | 2004-08-26 |
| CN100386562C (zh) | 2008-05-07 |
| JP2006521527A (ja) | 2006-09-21 |
| US20060080964A1 (en) | 2006-04-20 |
| AU2004210904A1 (en) | 2004-08-26 |
| CN1745278A (zh) | 2006-03-08 |
| EP1590603B1 (de) | 2012-10-17 |
| ES2397837T3 (es) | 2013-03-11 |
| JP4611969B2 (ja) | 2011-01-12 |
| PT1590603E (pt) | 2013-01-25 |
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