EP0135664A2 - Passage de gaz vertical pour un échangeur de chaleur - Google Patents

Passage de gaz vertical pour un échangeur de chaleur Download PDF

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Publication number
EP0135664A2
EP0135664A2 EP84105357A EP84105357A EP0135664A2 EP 0135664 A2 EP0135664 A2 EP 0135664A2 EP 84105357 A EP84105357 A EP 84105357A EP 84105357 A EP84105357 A EP 84105357A EP 0135664 A2 EP0135664 A2 EP 0135664A2
Authority
EP
European Patent Office
Prior art keywords
funnel
wall
pipes
cable
tubes
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
Application number
EP84105357A
Other languages
German (de)
English (en)
Other versions
EP0135664A3 (en
EP0135664B1 (fr
Inventor
Karl Rees
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Trasformazione Societaria sulzer AG
Original Assignee
Sulzer AG
Gebrueder Sulzer AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sulzer AG, Gebrueder Sulzer AG filed Critical Sulzer AG
Publication of EP0135664A2 publication Critical patent/EP0135664A2/fr
Publication of EP0135664A3 publication Critical patent/EP0135664A3/de
Application granted granted Critical
Publication of EP0135664B1 publication Critical patent/EP0135664B1/fr
Expired legal-status Critical Current

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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 vertical accelerator cable for a heat exchanger, with a funnel arranged at the lower end of the accelerator cable and having an outlet opening for ashes or the like, the accelerator cable consisting of interconnected, medium-carrying and wall-forming tubes running essentially in the longitudinal direction of the accelerator cable , wherein the funnel also consists of interconnected, medium-carrying and wall-forming pipes, the inclined funnel walls also meeting at their upper end along a boundary edge with wall-forming pipes of the gas train and pipes of the funnel walls being connected to pipes of the gas train on the medium side.
  • Such an accelerator cable for a steam generator is known, the accelerator cable having a rectangular or square cross section and the horizontal outlet opening being as long as the width of the accelerator cable and being relatively narrow.
  • the outlet opening runs in the middle of the throttle cable and parallel to its sides.
  • the funnel consists of two sloping and two vertical funnel walls where the tubes of the vertical funnel walls are straight-line extensions of tubes of the throttle cable; the tubes of the two oblique funnel walls, on the other hand, are tubes of the throttle cable bent at the boundary edge.
  • a cylindrical gas flue 1 is formed from wall tubes welded to one another in a gas-tight manner via webs 3.
  • a funnel 10 connects to the throttle cable 1 and is formed by extensions of the wall tubes 2 and the webs 3, which are also tightly welded to one another.
  • the funnel 10 consists of four walls 4, 5, 6 and 7.
  • the two walls 4 and 6 are of the same length as the width of the outlet opening 12 of the funnel 10 and are flush with the corresponding wall parts of the throttle cable 1.
  • the two walls 5 and 7 of the Funnels 10 are one each
  • Boundary edge 14 formed according to them curved wall tubes 2 and webs 3 of the throttle cable 1. Since the walls 5 and 7 have a greater length at the boundary edge 14 than at the funnel opening 12, the webs 3 gradually taper downwards and part of their tubes 2 is before reaching the The funnel opening 12 is bent outwards and guided into a collector 9. The remaining tubes of walls 5 and 7 are connected to collectors 8, while the tubes of walls 4 and 6 are connected to collectors 11. The spatial complexity of this funnel shape, which has already been commented on, and the resultant, very complex producibility can be clearly seen from FIGS. 1 and 2.
  • a conical funnel 20 adjoins the gas train 1, which in turn is cylindrical and consists of wall tubes 2 and webs 3.
  • all wall tubes 2 and webs 3 are bent inwards at the boundary edge 14 for the purpose of forming a funnel.
  • the webs 3 must also taper in the direction of the outlet opening 22 and part of the wall tubes 2 of the funnel must be bent outwards before they can be opened reach the outlet opening 22.
  • These tubes open into a ring collector 21, while the remaining tubes merge into a ring collector 23 which surrounds the opening 22.
  • this solution has the advantage that all webs 3 in the area of the funnel 20 are cut identically and all wall tubes 2 are bent identically at the boundary edge 14. Nevertheless, the manufacture of such a structure, especially for gas passages of large cross-section, is still very complex, and the already mentioned risk of clogging the outlet openings 22 is great.
  • a vertical prismatic throttle cable 1 ' has an octagonal cross-section and is formed by wall tubes 2 welded together tightly via webs 3.
  • a pyramid 30 with a medium flow and tapering upwards projects into the throttle cable 1 'from below.
  • the base of the pyramid 30 is an octagon which is arranged parallel to the cross section of the gas cable 1' and concentrically with it.
  • the base is approximately at the same level as the lower edge of the throttle cable 1 '.
  • the pyramid 30 is formed by four tubes 32 running parallel to the corners of the octagon, which therefore essentially have the shape of broken spatial spirals and are welded to one another tightly by means of webs 33.
  • the tubes 32 are bent inwards and are guided vertically to below the base of the pyramid 30, from where they are led to connection points (not shown).
  • connection points (not shown).
  • the tubes 32 are bent outwards and each end in a collector 31.
  • the medium flows from the collectors 31 through the tubes 32 of the pyramid 30 upwards, from the top downwards and finally to the mentioned connection points; it can also flow in the opposite direction.
  • the residues in solid or liquid form that accumulate in the interior of the gas duct 1 'fall down and are guided by the pyramid 30 and by the walls of the gas duct to an essentially annular outlet opening 34, from which they fall into a rotating removal device, not shown.
  • the production of such a structure is not excessively complex, but the aforementioned difficult accessibility in the event of breakdowns and blockages in the system is problematic.
  • a connection to the conventional disposal devices is difficult to implement.
  • a vertical throttle cable 70 has the shape of a prism with twenty-four identical sides, which is formed by wall tubes 2 which are sealed to one another and also carry vertical media and which also carry vertical tubes.
  • a funnel 40 connects along a boundary edge 14, the outlet opening 44 of which has a long, rectangular shape.
  • the funnel 40 consists essentially of six flat walls 41, 42 and 43. The at The vertical walls 41 delimit the short side of the outlet opening 44, whereas the two inclined walls 43 extend along the long side of the opening 44.
  • the two inclined walls 42 connect the throttle cable wall with a vertical wall 41 along a horizontal edge 24.
  • the six walls 41, 42 and 43 are also formed by extensions of the wall tubes 2 and the webs 3, which are also tight in the funnel 40 with the tubes are welded.
  • the tubes are bent at the boundary edge 14 or at the edge 24.
  • the boundary edge 14 has a broken course, which depends on which side of the throttle cable 70 meets it with the funnel. If the boundary edge 14 is perpendicular to the longitudinal axis of the wall pipes 2 running in the gas pass 70, the pipe division in the adjoining wall section of the funnel 40 remains the same. The more the angle between the boundary edge 14 and the longitudinal axis of the wall pipes 2 in the throttle cable 70 deviates from the right angle, the narrower the division of the pipes 2 bent into the funnel wall in this wall part of the funnel 40.
  • Any solid or liquid materials that fall down inside the throttle cable 70 are thus continuously guided from the funnel 40 to the outlet opening 44, via which they reach devices (not shown) in which they are then further treated.
  • a heat-transferring, for example absorbing, medium flows through the wall tubes 2.
  • the funnel 40 is reinforced by means of a special support structure 50 (FIG. 8) which absorbs mechanical loads, in particular bending loads on the sloping walls 43, and thus maintains the shape of the funnel 40.
  • the support structure is slidably connected to the funnel walls.
  • the support structure 50 has two support grids 51, each of which is composed of inclined supports 52 and horizontal supports 53.
  • the support structure 50 has a support ring 54, which is fixedly connected to the two support grids 51 at the upper end, and a plurality of auxiliary supports 55.
  • the support grids 51 run parallel to the inclined walls 43 and are pivotally mounted at their lower ends in the region of the outlet opening 44 about an axis 58 each.
  • the support ring 54 is dimensioned according to a previously calculated deformability so that in the unloaded state it has the shape of an ellipse, the major axis of which runs approximately parallel to the longitudinal direction of the outlet opening 44, has a circular shape in normal operation and under very heavy loads, for example in the event of explosions Inside the funnel, the shape of an ellipse takes on its major axis then perpendicular to the longitudinal direction of the outlet opening 44.
  • the auxiliary supports 55 are provided, which are connected to these walls in a known manner in such a way that mutual freedom of movement in the horizontal direction is ensured, both under loads and under thermal expansion.
  • the support ring 54 On the support ring 54 four claws 56 are attached distributed over its circumference, each of which is guided between two vertical guide plates 57 of a support frame, not shown. The interaction of the claws 56 with the guide plates 57 enables the support ring 54 to carry out vertical movements and deformations along two axes, one of which is parallel and the other perpendicular to the longitudinal direction of the outlet opening 44; however, horizontal displacements of the support ring 54 are prevented.
  • the throttle cable 70 and the funnel 40 are connected to the support ring 54 by means of tab systems, not shown, which are known per se and which allow both vertical movements of the support ring 54 and different thermal expansions of the parts connected to one another, but larger deflections of the gas cable 70, e.g. in the event of an earthquake.
  • FIGS. 9 and 10 show the connection of the support structure 50 to the funnel 4 () in its lower region.
  • the two vertical walls 41 of the funnel 40 are reinforced in addition to the auxiliary supports 55 by tension bands 59 which are connected to the support grids 51 at the funnel corners by means of tabs 59 '.
  • the supporting grids 51 are provided at their lower ends with joints 58 ′ which contain the pivot axis 58 and are attached to two horizontal supports 46 which run parallel to the longitudinal direction of the outlet opening 44. As a result, they can pivot somewhat about the associated axis 58 in order to compensate for thermal expansions of the funnel 40 or deformations therein as a result of internal stress, the support ring 54, as already mentioned, being slightly deformed.
  • the vertical opening 41 are additionally reinforced by means of a drawstring 59 "and the two inclined walls 43 are additionally reinforced by means of the supports 46 fastened to them via connecting boxes 47. From FIG. 10 it can be seen how the wall tubes 2 are bent in order to accommodate the to create known lug connection between the carriers 46 on the one hand and the drawstrings 59 "on the other; this also applies to the tab connections between the tension bands 59 and the support grids 51.
  • the support structure 50 can have a very different temperature from the funnel 40, but this does not have a disruptive effect because of the measures described to compensate for different thermal expansions.
  • the support structure 50 also has sufficient flexibility to absorb mechanical loads caused by deformations of the walls 51.
  • the sloping walls 42 are not specially reinforced due to their small size and their favorable shape.
  • a funnel 60 in the form of a six-sided truncated pyramid is connected to a vertical, six-sided prismatic gas flue 1 ", which is very simple in terms of manufacture, but because of its small outlet opening 64 is only suitable for easily flowing deposit materials
  • Throttle cable 1 Consisting of vertical wall tubes 2 which are tightly welded to one another by means of webs 3 and at the boundary edge 14, the webs 3 are bent inwards and then run in the walls of the funnel 60.
  • the tubes 2 of the gas cable 1 run a distance still far vertically beyond the boundary edge 14 and are then bent outwards by 90 °, whereupon after they have been bent again by 90 ° they open into intermediate collectors 61.
  • a total of six intermediate collectors are present, namely one for each side of the hexagon Tubes 63 and the webs 3 bent at the boundary edge 14, which are tightly welded to the tubes 63.
  • the tubes 63 arise from the intermediate collectors 61 running horizontally and perpendicularly to them. After a bend lying between the collector 61 and the throttle cable 1 ′′, the tubes 63 enter the funnel wall at the boundary edge 14, in which they continue to run perpendicular to their respective intermediate collector 61.
  • the tubes run in each of the six funnel surfaces tapering downwards 63 parallel to each other up to the edge between two adjacent funnel surfaces, at which edges the tubes are bent outwards from the funnel wall and guided into funnel collectors 62, six of which are present and extend parallel to the edges mentioned.
  • the throttle cable 1 is part of a steam generator, the working fluid first flows through the collectors 62 and then the pipes 63 of the funnel 60. Then it reaches the intermediate collectors 61 and then below into the wall pipes 2 of the gas cable 1".
  • the reverse order of flow is also possible, especially if the throttle cable with the funnel serves as a gas heater.
  • the collectors 61 and / or 62 are expediently designed or connected to the tubes in such a way that a mixture of the medium flowing through is achieved. This ensures a good leveling of the medium state.
  • the intermediate collectors 61 can be omitted. 7 can be constructed in such a way that it has a square outlet opening 44, so that the vertical walls 41 with the collectors 45 ′′ and the collectors 45 above the outlet opening 44 can be dispensed with.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Supports For Pipes And Cables (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Treating Waste Gases (AREA)
EP84105357A 1983-08-31 1984-05-11 Passage de gaz vertical pour un échangeur de chaleur Expired EP0135664B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH4773/83 1983-08-31
CH477383 1983-08-31

Publications (3)

Publication Number Publication Date
EP0135664A2 true EP0135664A2 (fr) 1985-04-03
EP0135664A3 EP0135664A3 (en) 1985-12-27
EP0135664B1 EP0135664B1 (fr) 1988-07-27

Family

ID=4282291

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84105357A Expired EP0135664B1 (fr) 1983-08-31 1984-05-11 Passage de gaz vertical pour un échangeur de chaleur

Country Status (6)

Country Link
US (1) US4537156A (fr)
EP (1) EP0135664B1 (fr)
JP (1) JPH0652121B2 (fr)
CA (1) CA1247949A (fr)
DE (1) DE3473026D1 (fr)
PL (1) PL248385A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0217079A1 (fr) * 1985-09-23 1987-04-08 GebràœDer Sulzer Aktiengesellschaft Générateur de vapeur avec un foyer à combustible fossile
EP0543564A1 (fr) * 1991-11-21 1993-05-26 Foster Wheeler Energy Corporation Séparateur cyclone à refroidissement par eau
DE9412875U1 (de) * 1994-08-10 1994-10-27 Evt Energie- Und Verfahrenstechnik Gmbh, 70329 Stuttgart Dampferzeuger
WO2004063626A1 (fr) * 2003-01-09 2004-07-29 Foster Wheeler Energy Corporation Paroi tubulaire polygonale comportant une partie tronconique

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IN165916B (fr) * 1985-12-04 1990-02-10 Sulzer Ag
SE467984B (sv) * 1990-05-08 1992-10-12 Abb Carbon Ab Pfbc-anlaeggning innefattande en braennkammare utformad som ett maanghoernigt prisma med sex sidovaeggar
AT401287B (de) * 1994-10-17 1996-07-25 Austrian Energy & Environment Kühlflächenauskleidung
EP1533565A1 (fr) * 2003-11-19 2005-05-25 Siemens Aktiengesellschaft Générateur de vapeur à passage unique
JP4777452B2 (ja) * 2009-08-24 2011-09-21 三井造船株式会社 太陽光集光システム
FI126820B (fi) * 2016-01-18 2017-06-15 Andritz Oy Keskipakoerotin
KR102398119B1 (ko) * 2019-12-06 2022-05-17 비에이치아이 주식회사 보일러의 로 하부 호퍼용 벅 스테이

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE562910A (fr) *
DE1031057B (de) * 1957-05-03 1958-05-29 Kohlenscheidungs Ges Mit Besch Strahlungs- und Beruehrungs-Lufterhitzer
DE1105429B (de) * 1958-12-03 1961-04-27 Kohlenscheidungs Ges Mit Besch Strahlungsdampferzeuger mit lotrecht stehender Zyklonbrenn-kammer
FR1416901A (fr) * 1964-12-07 1965-11-05 Combustion Eng Trémie de générateur de vapeur
US3457903A (en) * 1967-08-30 1969-07-29 Ernest C Huge Furnace floor arrangement

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB879817A (en) * 1959-07-10 1961-10-11 Babcock & Wilcox Ltd Improvements in vapour generators
US3354870A (en) * 1965-10-20 1967-11-28 Babcock & Wilcox Co Tube fitting arrangement for furnace bottom
DE1551026A1 (de) * 1966-02-04 1970-01-15 Kohlenscheidungs Gmbh Rohrauskleidung fuer prismatische Brennkammern
JPS4420722Y1 (fr) * 1967-04-28 1969-09-04
JPS49150864U (fr) * 1973-04-24 1974-12-27
JPS5825922B2 (ja) * 1975-08-18 1983-05-31 ザ．バブコツク．アンド．ウイルコツクス．カンパニ− 強制循環流体加熱装置
US4245588A (en) * 1979-01-16 1981-01-20 Foster Wheeler Energy Corporation Vapor generating system having a division wall penetrating a furnace boundary wall formed in part by angularly extending fluid flow tubes
US4394849A (en) * 1981-06-22 1983-07-26 Foster Wheeler Energy Corporation Vapor generator having drainable tube bends around burner openings extending through furnace boundary walls formed in part by angularly extending fluid flow tubes

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE562910A (fr) *
DE1031057B (de) * 1957-05-03 1958-05-29 Kohlenscheidungs Ges Mit Besch Strahlungs- und Beruehrungs-Lufterhitzer
DE1105429B (de) * 1958-12-03 1961-04-27 Kohlenscheidungs Ges Mit Besch Strahlungsdampferzeuger mit lotrecht stehender Zyklonbrenn-kammer
FR1416901A (fr) * 1964-12-07 1965-11-05 Combustion Eng Trémie de générateur de vapeur
US3457903A (en) * 1967-08-30 1969-07-29 Ernest C Huge Furnace floor arrangement

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0217079A1 (fr) * 1985-09-23 1987-04-08 GebràœDer Sulzer Aktiengesellschaft Générateur de vapeur avec un foyer à combustible fossile
EP0543564A1 (fr) * 1991-11-21 1993-05-26 Foster Wheeler Energy Corporation Séparateur cyclone à refroidissement par eau
DE9412875U1 (de) * 1994-08-10 1994-10-27 Evt Energie- Und Verfahrenstechnik Gmbh, 70329 Stuttgart Dampferzeuger
WO2004063626A1 (fr) * 2003-01-09 2004-07-29 Foster Wheeler Energy Corporation Paroi tubulaire polygonale comportant une partie tronconique
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

Also Published As

Publication number Publication date
EP0135664A3 (en) 1985-12-27
JPH0652121B2 (ja) 1994-07-06
EP0135664B1 (fr) 1988-07-27
PL248385A1 (en) 1985-04-09
DE3473026D1 (en) 1988-09-01
CA1247949A (fr) 1989-01-03
US4537156A (en) 1985-08-27
JPS6060403A (ja) 1985-04-08

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