SE437124B - A boiler with a furnace chamber clad with cooling tubes. - Google Patents
A boiler with a furnace chamber clad with cooling tubes.Info
- Publication number
- SE437124B SE437124B SE8302935A SE8302935A SE437124B SE 437124 B SE437124 B SE 437124B SE 8302935 A SE8302935 A SE 8302935A SE 8302935 A SE8302935 A SE 8302935A SE 437124 B SE437124 B SE 437124B
- Authority
- SE
- Sweden
- Prior art keywords
- boiler
- particle separator
- tube system
- room
- cooled
- Prior art date
Links
- 238000001816 cooling Methods 0.000 title claims description 8
- 239000002245 particle Substances 0.000 claims abstract description 17
- 239000003546 flue gas Substances 0.000 claims abstract description 5
- 239000007787 solid Substances 0.000 claims abstract 3
- 238000010304 firing Methods 0.000 claims abstract 2
- 238000010438 heat treatment Methods 0.000 claims description 2
- 238000000926 separation method Methods 0.000 abstract description 4
- 230000007704 transition Effects 0.000 abstract description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 5
- JTJMJGYZQZDUJJ-UHFFFAOYSA-N phencyclidine Chemical class C1CCCCN1C1(C=2C=CC=CC=2)CCCCC1 JTJMJGYZQZDUJJ-UHFFFAOYSA-N 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 210000000988 bone and bone Anatomy 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
- B04C5/00—Apparatus in which the axial direction of the vortex is reversed
- B04C5/20—Apparatus in which the axial direction of the vortex is reversed with heating or cooling, e.g. quenching, means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B31/00—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus
- F22B31/0007—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus with combustion in a fluidized bed
- F22B31/0084—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus with combustion in a fluidized bed with recirculation of separated solids or with cooling of the bed particles outside the combustion bed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B15/00—Fluidised-bed furnaces; Other furnaces using or treating finely-divided materials in dispersion
- F27B15/02—Details, accessories, or equipment peculiar to furnaces of these types
- F27B15/12—Arrangements of dust collectors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/001—Extraction of waste gases, collection of fumes and hoods used therefor
- F27D17/002—Details of the installations, e.g. fume conduits or seals
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Environmental & Geological Engineering (AREA)
- Dispersion Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
Description
8-302935-5 lO 15 20 25 30 35 2 Cyklonens kylsystem anslutes lämpligen till reak- torns eller konvektionsdelens kylsystem. 8-302935-5 10 15 20 25 30 35 2 The cooling system of the cyclone is suitably connected to the cooling system of the reactor or convection section.
Företrädesvis användes en cyklon för partikelav- skiljning men givetvis är också andra typer av partikel- avskiljare användbara för ändamålet.Preferably a cyclone is used for particle separation but of course other types of particle separators are also useful for the purpose.
Ytterligare detaljer hos panna och cyklon framgår av bifogade ritningar. Fig l visar en längdsektíon genom en panna enligt föreliggande uppfinning. Fig 2 visar en sektion längs linjen II-II i fig l. Fig 3 visar en' sektion, som är dragen längs linjen III-III i fig l, varvid den nedre vänstra cyklonen i fig 3 visas 1 sektion längs linjen IIIA-IIIA i fig l. Fig 4 visar en sidovy av enbart den nedre vänstra cyklonen i fig 3. Fig 5 visar en sektion längs linjen V-V i fig 4. Fig 6 visar en sektion längs linjen VI-VI i fig 4. Fig 7 visar en sektion längs linjen VII-VII i fig 4. Fig 8 visar en sektion längs linjen VIII-VIII i fig 4.Further details of the boiler and cyclone are shown in the accompanying drawings. Fig. 1 shows a longitudinal section through a boiler according to the present invention. Fig. 2 shows a section along the line II-II in Fig. 1. Fig. 3 shows a section drawn along the line III-III in Fig. 1, the lower left cyclone in Fig. 3 showing 1 section along the line IIIA-IIIA in Fig. 1 shows a side view of only the lower left cyclone in Fig. 3. Fig. 5 shows a section along the line VV in Fig. 4. Fig. 6 shows a section along the line VI-VI in Fig. 4. Fig. 7 shows a section along line VII-VII in Fig. 4. Fig. 8 shows a section along the line VIII-VIII in Fig. 4.
Den i fig l visade pannan enligt uppfinningen har formen av en svävbäddseldad panna med ett eldstadsrum 10, vars väggar är på alla sidor beklätt med väggtuber.The boiler according to the invention shown in Fig. 1 is in the form of a floating bed-fired boiler with a fireplace room 10, the walls of which are lined with wall tubes on all sides.
Väggtuberna ll utgår från undre fördelare l2 och mynnar i övre samlare l3. De väggtuber 12, som bildar eldstads- rummets bakvägg och tak utgår från undre tvärgående fördelare l5 och mynnar i en tvärgående samlare 16.The wall tubes l1 start from the lower distributor l2 and open into the upper collector l3. The wall tubes 12, which form the rear wall and ceiling of the fireplace room, start from the lower transverse distributor 15 and open into a transverse collector 16.
Vid eldstadsrummets undre ände finns en med tuber beklädd luftfördelningskammare 17, som via icke visade munstycken matar luft uppåt i eldstadsrummet 10. Vid övre änden ' av eldstadsrummet l0 finns öppningar l8, genom vilka rökgaser och svävbäddspartiklar kan inströmma i endera av två cyklonavskiljare 19, som beskrives närmare i det följande. Cyklonavskiljarna har sin luftavloppsled- ning 20 ansluten till inloppsöppningar 21 ovanför den tvärgående samlaren 16. Dessa inloppsöppningar 12 leder rökgaserna in till ett efterkopplat nedåtgående gas- stråk 22, i vilket ytterligare värmeväxlingsytor 23, 24 och 25 är insatta. Vid nedre änden av gasstråket 22 finns en asksamlingstratt 26, från vilken ett uppåt- 10 15 20 25 30 35 83-0329 3 5- 5 3 riktat gasstrák 27 med efterkopplade värmningsväxlings- ytor 28 finnes. Gasstråket 27 är anslutet till skorsten.At the lower end of the fireplace room there is a tubular air distribution chamber 17, which via air (not shown) feeds air upwards into the fireplace room 10. At the upper end 'of the fireplace room 10 there are openings l8, through which flue gases and fluidized bed particles can flow into either of two cyclone separators 19. described in more detail below. The cyclone separators have their air drain line 20 connected to inlet openings 21 above the transverse collector 16. These inlet openings 12 lead the flue gases into a connected downward gas strip 22, in which further heat exchange surfaces 23, 24 and 25 are inserted. At the lower end of the gas strip 22 there is an ash collecting funnel 26, from which there is an upwardly directed gas strip 27 with connected heating exchange surfaces 28. The gas strip 27 is connected to the chimney.
Den i fig l och 2 visade pannan har sålunda ett bärande rörstativ, i vilket fördelarna 12, 15 och ytterligare fördelare ingår liksom samlarna 13 och 16 samt ytter- ligare samlare. I rörstativet ingår också fallrör 29) 30. Till rörstativets övre samlare är en ångavskilj- ningsdom 31 ansluten på sedvanligt sätt.The boiler shown in Figs. 1 and 2 thus has a supporting pipe frame, in which the distributors 12, 15 and further distributors are included as well as the collectors 13 and 16 and further collectors. The pipe frame also includes downcomers 29) 30. A steam separation judgment 31 is connected to the pipe collector's upper collector in the usual way.
För att minska partikelbelastningen i cyklonavskil- jarna 19 har ett antal vertikala s k balkavskiljare 32 anordnats i utloppsöppningarna 18. Dessa balkavskil- jare kan vara utformade ungefär så som visas i den svens- ka patentansökningen 8201589-2.In order to reduce the particle load in the cyclone separators 19, a number of vertical so-called beam separators 32 have been arranged in the outlet openings 18. These beam separators can be designed approximately as shown in Swedish patent application 8201589-2.
Vid kända pannor med efterkopplade cyklonavskil- jare har, såsom påpekats ovan, svårigheter uppstått till följd av betydande rörelser i övergången mellan eldstadsdelen och cyklonen, vilket medfört stora kon- struktionsproblem, som man försökt lösa med hjälp av bälgar eller andra organ, som möjliggör relativrörel- ser. Dessa problem har enligt föreliggande uppfinning lösts genom att vardera cyklonen 19 har utförts med kylda tubväggar och med ett tubsystem, som har väsent- ligen samma höjdutsträckning som pannans tubsystem.In known boilers with reconnected cyclone separators, as pointed out above, difficulties have arisen as a result of significant movements in the transition between the fireplace part and the cyclone, which has led to major construction problems, which have been attempted to solve with the help of bellows or other means enabling relative movement. - looks. These problems have been solved according to the present invention by each cyclone 19 being made with cooled tube walls and with a tube system which has substantially the same height extension as the tube system of the boiler.
Som framgår av fig l och 3-8 har cyklonen sålunda bil- dats med hjälp av kylda tuber 33, som utgår från en fördelarring 34, vilken medelst tre som ben tjänstgöran- de matarrör 35 är anslutet till pannans rörstativ. Tu- berna 33 är vid övre änden anslutna till en samlartubring 36, som är sammankopplad med pannans samlarsystem. Ge- nom denna samlartubring 36 överföres sålunda de från partiklar väsentligen befriade rökgaserna till pannans nedåtgående gasstråk 22.As can be seen from Figures 1 and 3-8, the cyclone has thus been formed by means of cooled tubes 33, which start from a distributor ring 34, which is connected to the pipe frame of the boiler by means of three feed tubes 35 serving as bone. The tubes 33 are connected at the upper end to a collector tube 36, which is connected to the collector system of the boiler. Through this collector tube 36, the flue gases substantially freed of particles are thus transferred to the downward gas path 22 of the boiler.
En del av väggtuberna 33 i cyklonavskiljaren är isärbockade för bildande av en inloppsöppning 37 medelst vilken cyklonen är förbunden med eldstadsrummet 10.Some of the wall tubes 33 in the cyclone separator are bent apart to form an inlet opening 37 by means of which the cyclone is connected to the fireplace space 10.
Mellan denna inloppsöppning 37 och eldstadsrummets hörn finns ett kanalparti 38 med kylande väggtuber 39, som 8302935-5 10 15 4 ingår i pannans tubsystem.Between this inlet opening 37 and the corner of the fireplace room there is a duct portion 38 with cooling wall tubes 39, which is included in the tube system of the boiler.
Vid cyklonernas nederände finns återföringskanaler 40 för återföring av avskilda partiklar till eldstads- rummet 10 under pannans drift. Avskiljning av askpartik- lar kan ske antingen genom en asklucka 41 eller genom ett askuttag 42. Aska kan också avlägsnas från nederänden av asksamlingstratten 26. Pannan har sedvanlig icke närmare visad utrustning för lufttillförsel och bränsle- tillförsel. I pannan kan även icke visade stödbrännare vara anordnade. c , Genom att cyklonerna har ett tubsystem av väsentli- gen samma höjdutsträckning som pannans tubsystem, kommer de vid kända konstruktioner förekommande svårigheterna med överdrivna rörelser i övergångarna mellan panna och cykloner inte att uppstå. Cyklonens tubsystem kommer sålunda att följa med 1 panntubsystemets rörelser vid temperaturstegringar och temperatursänkningar.At the lower end of the cyclones are return channels 40 for returning separated particles to the fireplace space 10 during the operation of the boiler. Separation of ash particles can take place either through an ash hatch 41 or through an ash outlet 42. Ash can also be removed from the lower end of the ash collecting funnel 26. The boiler usually has equipment not shown in more detail for air supply and fuel supply. Support burners (not shown) can also be arranged in the boiler. c, Because the cyclones have a tube system of substantially the same height extent as the boiler tube system, the difficulties occurring in known constructions with excessive movements in the transitions between boiler and cyclones will not arise. The cyclone's tube system will thus follow the movements of the boiler tube system during temperature rises and temperature drops.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8302935A SE437124B (en) | 1983-05-25 | 1983-05-25 | A boiler with a furnace chamber clad with cooling tubes. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE8302935A SE437124B (en) | 1983-05-25 | 1983-05-25 | A boiler with a furnace chamber clad with cooling tubes. |
Publications (3)
Publication Number | Publication Date |
---|---|
SE8302935D0 SE8302935D0 (en) | 1983-05-25 |
SE8302935L SE8302935L (en) | 1984-11-26 |
SE437124B true SE437124B (en) | 1985-02-11 |
Family
ID=20351313
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE8302935A SE437124B (en) | 1983-05-25 | 1983-05-25 | A boiler with a furnace chamber clad with cooling tubes. |
Country Status (1)
Country | Link |
---|---|
SE (1) | SE437124B (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0298671A2 (en) * | 1987-07-06 | 1989-01-11 | Foster Wheeler Energy Corporation | Cyclone separator having water-steam cooled walls |
EP0413612A3 (en) * | 1989-08-18 | 1991-07-31 | Foster Wheeler Energy Corporation | Fluidized bed steam generating system including a steam cooled cyclone separator |
EP0457983A1 (en) * | 1989-03-30 | 1991-11-27 | Foster Wheeler Energy Corporation | Cyclone separator including a hopper formed by water-steam cooled walls |
EP0497528A1 (en) * | 1991-01-31 | 1992-08-05 | Foster Wheeler Energy Corporation | Steam generating system utilizing separate fluid flow circuitry between the furnace section and the separating section |
US5203284A (en) * | 1992-03-02 | 1993-04-20 | Foster Wheeler Development Corporation | Fluidized bed combustion system utilizing improved connection between the reactor and separator |
EP0931841A1 (en) * | 1998-01-21 | 1999-07-28 | Brifer International Ltd. | Apparatus and process for the direct reduction of iron oxides |
-
1983
- 1983-05-25 SE SE8302935A patent/SE437124B/en not_active IP Right Cessation
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0298671A2 (en) * | 1987-07-06 | 1989-01-11 | Foster Wheeler Energy Corporation | Cyclone separator having water-steam cooled walls |
EP0298671A3 (en) * | 1987-07-06 | 1990-03-28 | Foster Wheeler Energy Corporation | Cyclone separator having water-steam cooled walls |
EP0457983A1 (en) * | 1989-03-30 | 1991-11-27 | Foster Wheeler Energy Corporation | Cyclone separator including a hopper formed by water-steam cooled walls |
EP0413612A3 (en) * | 1989-08-18 | 1991-07-31 | Foster Wheeler Energy Corporation | Fluidized bed steam generating system including a steam cooled cyclone separator |
EP0497528A1 (en) * | 1991-01-31 | 1992-08-05 | Foster Wheeler Energy Corporation | Steam generating system utilizing separate fluid flow circuitry between the furnace section and the separating section |
US5203284A (en) * | 1992-03-02 | 1993-04-20 | Foster Wheeler Development Corporation | Fluidized bed combustion system utilizing improved connection between the reactor and separator |
EP0559388A2 (en) * | 1992-03-02 | 1993-09-08 | Foster Wheeler Energy Corporation | Fluidized bed combustion system utilizing improved connection between the reactor and separator |
EP0559388A3 (en) * | 1992-03-02 | 1993-12-29 | Foster Wheeler Energy Corp | Fluidized bed combustion system utilizing improved connection between the reactor and separator |
EP0931841A1 (en) * | 1998-01-21 | 1999-07-28 | Brifer International Ltd. | Apparatus and process for the direct reduction of iron oxides |
Also Published As
Publication number | Publication date |
---|---|
SE8302935D0 (en) | 1983-05-25 |
SE8302935L (en) | 1984-11-26 |
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