EP0787272B1 - Kühlflächenauskleidung - Google Patents
Kühlflächenauskleidung Download PDFInfo
- Publication number
- EP0787272B1 EP0787272B1 EP95944757A EP95944757A EP0787272B1 EP 0787272 B1 EP0787272 B1 EP 0787272B1 EP 95944757 A EP95944757 A EP 95944757A EP 95944757 A EP95944757 A EP 95944757A EP 0787272 B1 EP0787272 B1 EP 0787272B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- funnel
- wall
- sloping
- walls
- vertical
- 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.)
- Expired - Lifetime
Links
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
- F22B37/10—Water tubes; Accessories therefor
- F22B37/14—Supply mains, e.g. rising mains, down-comers, in connection with water tubes
- F22B37/146—Tube arrangements for ash hoppers and grates and for combustion chambers of the cyclone or similar type out of the flues
Definitions
- the invention relates to a cooling surface lining for polygonal chambers of steam generators with funnel-shaped bottom and with firing according to the principle of circulating Fluidized bed, which at least partially consists of walls stretched between collectors Fin tube walls with essentially vertical tubes, which in the Bottom area are converged bent to form a funnel, is formed.
- the invention has set itself the task, also external to the combustion chamber and in part Integrate small-area components in the cooling system and through special training the components and / or the lining pipes one on the circulation of the steam generator provide connected fin tube wall.
- the invention is characterized in that two opposite fin tube walls in the funnel area - viewed from top to bottom - first one in its entire width funnel wall inclined to the vertical and then at least one vertical Funnel wall with decreasing width and partly inclined collectors form, and that the adjacent pipe wall and its opposite pipe wall in Funnel area - viewed from top to bottom - first with decreasing width and inclined collectors a vertical funnel wall and then with constant reduced width a side wall of the Form funnels.
- the main advantages of the invention are that despite the difficult Pipe arrangement more heat exchange surfaces can be accommodated in the given space can and that the thermal stresses when starting and stopping despite faster load changes be reduced in size because all wall parts are cooled evenly, which makes the Thermal elasticity increases.
- the new funnel construction is also advantageous for Combustion chamber funnel suitable.
- 1 and 2 show in oblique plan two design variations of a funnel-shaped Bottom of a steam generator, which is entirely lined with fin tube heating surfaces are.
- Fig.1 shows a combustion chamber without and Fig. 2 with bilaterally heated partition in Cut.
- a funnel-shaped combustion chamber floor is shown, which through an intermediate wall is divided into two outlets.
- the fin tube wall 1 is in its entirety Width angled obliquely and forms the funnel wall 1 '.
- This funnel wall 1 ' is Finally angled again towards the vertical, being down rejuvenated. This happens because the pipes that are no longer used to the outside be performed and in a collector 2, possibly under slanted connecting pieces be involved.
- the remaining tube wall 1 "may be continued and forms a wall of the channel 9 through which the solids are discharged.
- two inner funnel walls 8 are provided, which are also used for cooling the funnel wall 1 "are connected in that the shorter tubes of the funnel wall 1" after a 90 ° curvature can be introduced into the funnel wall 8 and the lining represent. In this case, too, the funnel wall 8 can enter the wall of the channel 9 be transferred. With this construction, it is essential that the longer tubes of the Funnel wall 1 "in the area of the funnel wall 8 a collector 2 ', which is about half shorter than collector 2.
- This measure of special funnel formation can be done in a relatively simple manner also carry out the lining of complicated fin tube wall constructions, such as in fluidized bed combustion plants with a circulating fluidized bed especially in the area of the return of the swirl material to the combustion chamber and fully line the inside surfaces with cooling surfaces. If those Heating surfaces are relatively weakly heated so they can be at least partially in the Integrate the downpipe system of the steam generator, whereby the pipes, which are connected to the collecting chambers 2 and thus arranged at the lowest are used. It is quite possible that part of the fin tube wall 1 in the riser pipe system, while another part is arranged in the down pipe system.
- Fig. 1 differs from Fig. 2 not only by a changed view, but also by introducing an intermediate wall 6, so that of the tube walls enclosed space is divided.
- a part of the pipes namely the longer pipes of the partition, is the lower part of the funnel is inserted, while the shorter tubes are in a collector 4 'open at the bottom of the funnel wall 1'.
- the longer pipes are in the partition 6 compressed and integrated into the funnel walls 8 after spreading in such a way that the individual pipes arranged in the intermediate wall 6 are compressed can be alternately transferred into one of the two inclined funnel walls 8.
- the tubes of the funnel wall 8 are laid more easily compared to FIG. 1 and those in FIG. 1 referred to as shorter collectors 2 'collectors are substantially the same size as that Collector 2 and take up a large part of the tubes of the funnel wall 1 ".
- the lining the walls of the adjoining channel 9 can be made similarly as in FIG. 1.
Description
Claims (7)
- Kühlflächenauskleidung für mehreckige Kammern von Dampferzeugern mit trichterförmigem Boden und mit Feuerungen nach dem Prinzip der zirkulierenden Wirbelschicht, die zumindest teilweise aus zwischen Sammlern wandweise ausgespannten Flossenrohrwänden mit im wesentlich vertikal verlaufenden Rohren, die im Bodenbereich zur Bildung eines Trichters konvergierend abgebogen sind, gebildet ist, dadurch gekennzeichnet, daß zwei gegenüberliegende Flossenrohrwände (1) im Trichterbereich - von oben nach unten betrachtet - zuerst in ihrer ganzen Breite eine gegenüber der Vertikalen geneigte Trichterwand (1') und anschließend wenigstens eine vertikale Trichterwand (1") mit sich vermindernder Breite und zum Teil schrägliegenden Sammlern (2) bilden, und daß die angrenzende Rohrwand (3) und ihre gegenüberliegende Rohrwand (3') im Trichterbereich - von oben nach unten betrachtet - zuerst mit sich vermindernder Breite und schrägliegenden Sammlern (4) eine vertikale Trichterwand und anschließend mit konstanter verminderter Breite eine gegenüber der Vertikalen geneigte Seitenwand (3") des Trichters bilden.
- Kühlflächenauskleidung nach Anspruch 1, dadurch gekennzeichnet, daß die schrägliegenden Sammler (2, 4) durch zur Achse des Sammlers schräg angeordnete Stutzen (5) mit der Rohrwand (1, 3) verbunden sind.
- Kühlflächenauskleidung nach Anspruch 1, dadurch gekennzeichnet, daß die schrägliegenden Sammler (2, 4) angrenzender Wände in unterschiedlichen Höhenlagen angeordnet sind.
- Kühlflächenauskleidung nach Anspruch 3, dadurch gekennzeichnet, daß der tiefergelegende schräge Sammler (2, 2') im Fallrohrsystem des Dampferzeugers angeordnet ist, sodaß die Flossenrohrwand (1) zum Teil dem Fallrohrsystem und zum anderen Teil dem Steigrohrsystem zugeordnet ist.
- Kühlflächenauskleidung nach Anspruch 1, dadurch gekennzeichnet, daß bei Trennung zweier nebeneinander liegender Trichterräume (7, 7') voneinander durch eine beiseitig beheizte Zwischenwand (6) die Rohre der Zwischenwand (6) abwechselnd in jeweils einer schrägen Trichterwand (8) fortgesetzt sind (Fig. 2).
- Kühlflächenauskleidung nach Anspruch 1, dadurch gekennzeichnet, daß bei Auskleidung zweier nebeneinander liegender Trichterräume ohne Zwischenwand die Rohre der sich schneidenden schrägen Trichterwände (8) in die benachbarte vertikale Trichterwand (1") geführt sind und nur der längere Teil der vertikalen Rohre der sich schneidenden schrägen Trichterwände (8) in die schrägliegenden Sammler (2') eingeleitet ist (Fig.1 ).
- Kühlflächeneinrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Rohrwände (1, 3, 3') in ihrer vertikalen Längserstreckung vor dem ersten Knick eine unterschiedliche Länge aufweisen und dann abwechselnd Knicke um einen stumpfen Winkel in die Schräge bzw. Vertikale aufweisen, wobei die im anschließenden Wandabschnitt nicht mehr benötigten Rohre zumindest zum Teil in schrägliegende Sammler (2 bzw. 4) eingeleitet sind.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT1952/94 | 1994-10-17 | ||
AT0195294A AT401287B (de) | 1994-10-17 | 1994-10-17 | Kühlflächenauskleidung |
PCT/AT1995/000203 WO1996012140A1 (de) | 1994-10-17 | 1995-10-16 | Kühlflächenauskleidung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0787272A1 EP0787272A1 (de) | 1997-08-06 |
EP0787272B1 true EP0787272B1 (de) | 1999-02-17 |
Family
ID=3524595
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP95944757A Expired - Lifetime EP0787272B1 (de) | 1994-10-17 | 1995-10-16 | Kühlflächenauskleidung |
Country Status (11)
Country | Link |
---|---|
US (1) | US5775265A (de) |
EP (1) | EP0787272B1 (de) |
AT (1) | AT401287B (de) |
AU (1) | AU3693695A (de) |
CZ (1) | CZ283415B6 (de) |
DE (1) | DE59505128D1 (de) |
FI (1) | FI971577A (de) |
GR (1) | GR3029828T3 (de) |
PL (1) | PL319734A1 (de) |
SK (1) | SK282951B6 (de) |
WO (1) | WO1996012140A1 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IT1299709B1 (it) * | 1998-03-04 | 2000-04-04 | Garbuto Spa | Essiccatore a letto fluido, particolarmente per l'essiccazione del tabacco. |
DE10354136B4 (de) * | 2002-11-22 | 2014-04-03 | Alstom Technology Ltd. | Zirkulierender Wirbelschichtreaktor |
US6793013B2 (en) | 2003-01-09 | 2004-09-21 | Foster Wheeler Energy Corporation | Polygonal heat exchange chamber including a tapered portion lined with water tube panels and method of lining a tapered portion of a polygonal heat exchange chamber with such panels |
FI124376B (fi) * | 2010-01-15 | 2014-07-31 | Foster Wheeler Energia Oy | Höyrykattila |
CN104344401B (zh) | 2013-08-09 | 2016-09-14 | 中国科学院工程热物理研究所 | 带变截面水冷柱的循环流化床锅炉炉膛 |
CN104728856B (zh) * | 2013-12-20 | 2017-03-01 | 中国科学院工程热物理研究所 | 梳齿型水冷柱及具有该水冷柱的炉膛 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2723650A (en) * | 1950-11-10 | 1955-11-15 | Babcock & Wilcox Co | Vapor generator |
US2896591A (en) * | 1957-07-15 | 1959-07-28 | Combustion Eng | Furnace wall for forced once-through boiler |
US3265039A (en) * | 1964-09-29 | 1966-08-09 | Combustion Eng | Burning chamber cells formed by horizontal partition-forming tubes |
FR1416901A (fr) * | 1964-12-07 | 1965-11-05 | Combustion Eng | Trémie de générateur de vapeur |
US3498270A (en) * | 1968-05-01 | 1970-03-03 | Foster Wheeler Corp | All-welded furnace construction |
US4301771A (en) * | 1980-07-02 | 1981-11-24 | Dorr-Oliver Incorporated | Fluidized bed heat exchanger with water cooled air distributor and dust hopper |
EP0135664B1 (de) * | 1983-08-31 | 1988-07-27 | GebràDer Sulzer Aktiengesellschaft | Vertikaler Gaszug für einen Wärmeübertrager |
EP0137119B1 (de) * | 1983-09-08 | 1988-08-24 | GebràDer Sulzer Aktiengesellschaft | Dampferzeuger |
SE452360B (sv) * | 1986-02-05 | 1987-11-23 | Goetaverken Energy Syst Ab | Anordning vid en reaktorkammare for en cirkulerande, fluidiserad bedd |
FI89535C (fi) * | 1991-04-11 | 1997-07-22 | Tampella Power Oy | Foerbraenningsanlaeggning |
FI93701C (fi) * | 1993-06-11 | 1995-05-26 | Ahlstroem Oy | Menetelmä ja laite kuumien kaasujen käsittelemiseksi |
-
1994
- 1994-10-17 AT AT0195294A patent/AT401287B/de not_active IP Right Cessation
-
1995
- 1995-10-16 DE DE59505128T patent/DE59505128D1/de not_active Expired - Lifetime
- 1995-10-16 SK SK475-97A patent/SK282951B6/sk not_active IP Right Cessation
- 1995-10-16 AU AU36936/95A patent/AU3693695A/en not_active Abandoned
- 1995-10-16 PL PL95319734A patent/PL319734A1/xx unknown
- 1995-10-16 EP EP95944757A patent/EP0787272B1/de not_active Expired - Lifetime
- 1995-10-16 CZ CZ971095A patent/CZ283415B6/cs not_active IP Right Cessation
- 1995-10-16 US US08/817,992 patent/US5775265A/en not_active Expired - Lifetime
- 1995-10-16 WO PCT/AT1995/000203 patent/WO1996012140A1/de active IP Right Grant
-
1997
- 1997-04-15 FI FI971577A patent/FI971577A/fi not_active Application Discontinuation
-
1999
- 1999-03-30 GR GR990400919T patent/GR3029828T3/el unknown
Also Published As
Publication number | Publication date |
---|---|
CZ109597A3 (en) | 1997-09-17 |
DE59505128D1 (de) | 1999-03-25 |
SK47597A3 (en) | 1998-06-03 |
US5775265A (en) | 1998-07-07 |
AU3693695A (en) | 1996-05-06 |
CZ283415B6 (cs) | 1998-04-15 |
AT401287B (de) | 1996-07-25 |
FI971577A0 (fi) | 1997-04-15 |
GR3029828T3 (en) | 1999-06-30 |
ATA195294A (de) | 1995-12-15 |
WO1996012140A1 (de) | 1996-04-25 |
SK282951B6 (sk) | 2003-01-09 |
EP0787272A1 (de) | 1997-08-06 |
PL319734A1 (en) | 1997-08-18 |
FI971577A (fi) | 1997-04-15 |
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