EP0233997A1 - Echangeur de chaleur, en particulier pour refroidir un gaz ou pour réchauffer de la vapeur - Google Patents
Echangeur de chaleur, en particulier pour refroidir un gaz ou pour réchauffer de la vapeur Download PDFInfo
- Publication number
- EP0233997A1 EP0233997A1 EP86115072A EP86115072A EP0233997A1 EP 0233997 A1 EP0233997 A1 EP 0233997A1 EP 86115072 A EP86115072 A EP 86115072A EP 86115072 A EP86115072 A EP 86115072A EP 0233997 A1 EP0233997 A1 EP 0233997A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pressure vessel
- heat exchanger
- steam
- steam collector
- tube
- 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
- 238000000034 method Methods 0.000 title claims abstract description 8
- 238000001816 cooling Methods 0.000 title claims abstract description 4
- 238000010438 heat treatment Methods 0.000 title description 2
- 239000000956 alloy Substances 0.000 claims abstract description 10
- 238000009413 insulation Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 238000009421 internal insulation Methods 0.000 claims description 2
- 238000013021 overheating Methods 0.000 claims 1
- 239000007789 gas Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000009422 external insulation Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000256 polyoxyethylene sorbitan monolaurate Substances 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 210000004243 sweat Anatomy 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
Images
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
- F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
- F22B37/22—Drums; Headers; Accessories therefor
-
- 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
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/0075—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for syngas or cracked gas cooling systems
Definitions
- the invention relates to a device as a heat exchanger, in particular for cooling process gas or for heating steam, with a pressure vessel as a heat exchanger vessel and with a tube bundle fastened via a tube sheet and a prechamber associated with the tube sheet, the tube sheet and / or the prechamber with the pressure vessel is / is connected, for example, via flanges.
- He ißgaskühler raise a number of problems that be related to that high pressure and high t be processed empera- turge pool.
- the corresponding superheater or gas cooler can be designed in very different ways.
- the tube bundle can be hanging or standing; they can be meandering, spiral or serpentine wound; the steam can be carried out in cocurrent or co-current u. Like. more.
- a problem area lies in particular in the connection between the pressure vessel wano on the one hand and the tube sheet or tube plates on the other hand or wherever high pressure temperature differences lead to extreme loads on both the materials and the connections themselves. It is therefore not surprising if there is already a whole range of different solution options for this ten there, such as the DD-PS 20 07 528 or DE-OS 30 22 480 of the applicant show.
- US Pat. Nos. 3,982,585 and 4,071,083, ie DE-AS 23 30 015, DE-PS 17 51 085, FR-PS 1 573 869 and GB-PS 1 182 995 whereby all publications deal essentially with the problem of the passage of the heat exchanger tubes through the tube sheet. The design of the tube sheet itself is not addressed in these publications.
- the temperature also leads differ to thermal stresses in the area where they occur, for example in the entrance area of the tube bundle, which are subjected to comparatively low temperature Dampl. Depending on the process control, temperature differences of up to 400 ° C and more can occur.
- the object of the invention is therefore to provide a solution with which the disadvantages described here are avoided on the basis of an adapted tube sheet design, with which in particular the connection area between differently alloyed steels is relocated to a level which is less at risk, areas of high temperature differences simultaneously being a Have design; which can withstand the tensions that arise.
- the tube tode is made of a flange ring made of low-alloy material with a concentric inner recess and is provided in the use position on the side facing the pressure vessel with an insulating layer and that the inner recess of the Rohr foundedflansches is equipped with an essentially pot-shaped, protruding into the pressure vessel insert made of high-alloy material.
- the division of the tube sheet into a flange ring made of low-alloy material and a central pot-shaped one The use of high-alloy material makes it possible to move the connecting seam between the flange ring on the one hand and the pot-shaped further tube sheet part used therein in an area in which high temperature differences do not occur, for example in the antechamber through which steam of low temperature usually flows. At the same time, the area that is exposed to the high pressures and temperature differences is made of high-alloy material with the associated advantages.
- the invention provides in an embodiment that the pot base is equipped with a central cone tapering from the pressure vessel to the prechamber, the cone being penetrated by a steam collector projecting into the prechamber and the pressure vessel.
- This design offers a particularly high resistance to pressure differences. At the same time, it makes possible the problem of installing a central steam collector for the tube bundle in the pressure vessel.
- pressurization bores for the heat exchanger tubes are arranged in the essentially flat pot bottom area. This results in a structurally very simple and very technically advantageous solution since the connection areas of the tube bundle are in the same plane NEN surface are provided on the bottom of the pot.
- the device is set up so that the prechamber for the steam to be heated is arranged in the direction of gravity at the upper end of the pressure vessel and is designed via the flange connection so that the entire tube bundle can be lifted upwards.
- the tube plate just mentioned is at the lower end of the steam collector.
- the steam collector will usually penetrate the prechamber at least in some areas.
- the invention provides that in this area the steam collector is provided with external insulation, not least so that the superheated steam is not again due to the steam temperature prevailing in the fore chamber let it cool down.
- the invention also provides that the steam collector is additionally equipped with an internal insulation, at least in the fastening area to the bottom of the pot.
- the invention also provides that the pot-shaped insert is formed in two parts with a bobo part having the cone and an edge part having a support brim.
- simple turned parts can be made from the high-alloy material, which can then be welded together. Elaborate designs are therefore unnecessary.
- the device generally designated 1 e.g. a high-pressure waste heat boiler, has a vertically positioned pressure vessel 2 on a stand 3 with a process steam introduction opening 4 in the lower region of the pressure vessel 2 and an outlet opening 5 in the upper pressure vessel region.
- the pressure vessel 2 has a flange 6, which is covered by a flange ring 7 of a prechamber 8 fastened there.
- the flange 6 and the flange ring 7 are connected to one another in the position of use.
- the antechamber is equipped with a steam inlet connector 9 and a steam outlet connector 10.
- the flange ring 7 has a concentric inner recess 11, which is penetrated by a cup-shaped insert 12, which projects in some areas into the interior of the pressure vessel 2.
- This insert 11 is described in more detail below.
- a tube bundle 13 is provided in the pressure vessel 2, which, starting from the insert 12, penetrates the pressure vessel and, in the example according to FIG. 1, opens into a lower base plate 14 of a steam collector 15 arranged centrally in the pressure vessel.
- the steam collector 15 passes through the pot-shaped insert 12 and passes through the prechamber 8 in some areas, in order then in Steam outlet nozzle 10 to end.
- the wall of the pressure vessel 2 is equipped with an insulating layer 16.
- a corresponding insulating layer 16a is also provided on the tube sheet flange 7.
- Essential to the invention is the design of the tube plate, generally designated 19, which, as already mentioned above, is of multi-part design, namely consisting of the flange ring 7 on the one hand and an insert 12 on the other.
- the lens 12 is pot-shaped.
- Lr consists of two elements, a pot base 20 and an edge part 22 provided with a K rempe 21. The two elements are welded together.
- the Rrempe 21 is inserted into an annular groove on the pohrfansch 7 and welded on the outer edge side. This means that the weld seam, designated 23 in FIG. 2, is arranged between the insert 12 and the tube sheet 19 pointing toward the interior of the prechamber 8 and is only exposed to the temperature there.
- the insert 12 on the one hand and the tube sheet flange 7 on the other hand are formed from different steels, so that the weld seam 23 is a so-called mixed seam which should not be exposed to any particular stresses, which is due to the design according to the invention is achieved.
- the pressurizing bores 24 are provided for the heat exchanger tubes denoted by 25.
- the pot base 20 has a cone 26 which tapers towards the antechamber 8 and in which the steam collector 15 is welded in the center.
- the insulation 17 of the D ampfsammlers within the pre-chamber 8 covers in the illustrated example, the weld between the cone 26 and the steam header 15 °.
- the steam collector 15 is equipped with an apron 27 which largely keeps a flow of the process gas in the pressure vessel 2 away from this area of the steam collector 15.
- 2 shows the possibility that the heat exchanger tubes 25 can be connected to the steam collector 15 in the region of this apron 27.
- the end points are designated 28.
- the heat exchanger tubes 25 can also be connected to the base plate 14 of the steam collector 15 be, as has already been mentioned above and is shown in FIG. 1, lower half of the figure.
- the steam to be overheated enters the pipe socket 9 of the prechamber 8, is distributed from there via the insert 12 to the individual heat exchanger pipes 25, flows through the bundle 13 and enters the central steam collector 15; flows through the Dampfsamnr ler 15 and exits at 10 from the device 1.
- the process gas can e.g. Cool from 800 ° C to 500 ° C with heat, while the steam was heated from, for example, 380 ° C to 700 ° C.
- the prechamber 8 with the steam collector 15 and the tube bundle 13 attached to it can be lifted out with simple means after loosening the flange connection between the flange 6 and the flange 7, which is a simple assembly and a simple one Makes maintenance possible.
- the described exemplary embodiment of the invention can be modified in many ways without departing from the basic idea of the invention. So the invention is not limited to the hanging arrangement of the tube bundle shown here.
- the heat exchanger and the pressure vessel can, for example, be arranged horizontally or upside down. In this case, for maintenance, for example, the vessel wano of the pressure vessel 2 forming a sleeve could be designed to be liftable u. Like. more.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT86115072T ATE38896T1 (de) | 1986-02-12 | 1986-10-30 | Waermetauscher, insbesondere zur kuehlung von prozessgas oder zur erhitzung von dampf. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3604288 | 1986-02-12 | ||
DE19863604288 DE3604288A1 (de) | 1986-02-12 | 1986-02-12 | Vorrichtung als waermetauscher, insbesondere zur kuehlung von prozessgas oder zur erhitzung von dampf |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0233997A1 true EP0233997A1 (fr) | 1987-09-02 |
EP0233997B1 EP0233997B1 (fr) | 1988-11-23 |
Family
ID=6293883
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP86115072A Expired EP0233997B1 (fr) | 1986-02-12 | 1986-10-30 | Echangeur de chaleur, en particulier pour refroidir un gaz ou pour réchauffer de la vapeur |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0233997B1 (fr) |
JP (1) | JPS62186196A (fr) |
AT (1) | ATE38896T1 (fr) |
DE (2) | DE3604288A1 (fr) |
ES (1) | ES2004827B3 (fr) |
GR (2) | GR880300116T1 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004072544A1 (fr) * | 2003-01-29 | 2004-08-26 | Alstom Technology Ltd | Refroidisseur a air pour centrales electriques et application d'un refroidisseur a air de ce type |
US11073347B2 (en) | 2017-05-26 | 2021-07-27 | Alfa Laval Olmi S.P.A. | Shell-and-tube equipment with bypass |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111197943B (zh) * | 2020-02-18 | 2024-06-21 | 中海石油气电集团有限责任公司 | 一种带过热装置的中间介质换热器 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1517732A (fr) * | 1966-07-19 | 1968-03-22 | Fives Penhoet | Chaudière de récupération |
DE1275071B (de) * | 1963-01-16 | 1968-08-14 | Braun & Co C F | Waermeaustauscher fuer Dampferzeuger |
FR2435667A1 (fr) * | 1978-09-05 | 1980-04-04 | Gen Atomic Co | Echangeur de chaleur a tubes helicoidaux du type utilise comme generateur de vapeur |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT339934B (de) * | 1976-02-27 | 1977-11-10 | Voest Ag | Warmetauscher |
DE3022480A1 (de) * | 1980-06-14 | 1982-01-07 | Uhde Gmbh, 4600 Dortmund | Vorrichtung zum waermetausch zwischen einen nh (pfeil abwaerts)3(pfeil abwaerts) -konverter verlassendem kreislaufgas und wasser |
-
1986
- 1986-02-12 DE DE19863604288 patent/DE3604288A1/de not_active Withdrawn
- 1986-10-30 AT AT86115072T patent/ATE38896T1/de active
- 1986-10-30 EP EP86115072A patent/EP0233997B1/fr not_active Expired
- 1986-10-30 ES ES86115072T patent/ES2004827B3/es not_active Expired - Lifetime
- 1986-10-30 DE DE8686115072T patent/DE3661298D1/de not_active Expired
- 1986-11-28 JP JP61282195A patent/JPS62186196A/ja active Pending
-
1988
- 1988-12-16 GR GR88300116T patent/GR880300116T1/el unknown
-
1989
- 1989-02-21 GR GR88400012T patent/GR3000012T3/el unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1275071B (de) * | 1963-01-16 | 1968-08-14 | Braun & Co C F | Waermeaustauscher fuer Dampferzeuger |
FR1517732A (fr) * | 1966-07-19 | 1968-03-22 | Fives Penhoet | Chaudière de récupération |
FR2435667A1 (fr) * | 1978-09-05 | 1980-04-04 | Gen Atomic Co | Echangeur de chaleur a tubes helicoidaux du type utilise comme generateur de vapeur |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004072544A1 (fr) * | 2003-01-29 | 2004-08-26 | Alstom Technology Ltd | Refroidisseur a air pour centrales electriques et application d'un refroidisseur a air de ce type |
JP2006521527A (ja) * | 2003-01-29 | 2006-09-21 | アルストム テクノロジー リミテッド | パワープラント用の空気冷却器及びこの空気冷却器の使用 |
CN100386562C (zh) * | 2003-01-29 | 2008-05-07 | 阿尔斯通技术有限公司 | 用于发电站设备的空气冷却器以及这种空气冷却器的应用 |
US7481265B2 (en) | 2003-01-29 | 2009-01-27 | Alstom Technology Ltd | Air cooler for power plants and use of such an air cooler |
US11073347B2 (en) | 2017-05-26 | 2021-07-27 | Alfa Laval Olmi S.P.A. | Shell-and-tube equipment with bypass |
Also Published As
Publication number | Publication date |
---|---|
ATE38896T1 (de) | 1988-12-15 |
GR880300116T1 (en) | 1988-12-16 |
EP0233997B1 (fr) | 1988-11-23 |
JPS62186196A (ja) | 1987-08-14 |
DE3604288A1 (de) | 1987-08-13 |
DE3661298D1 (en) | 1988-12-29 |
GR3000012T3 (en) | 1989-09-29 |
ES2004827B3 (es) | 1990-08-01 |
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