EP0227934B1 - Générateur de vapeur avec foyer pour combustibles solides - Google Patents

Générateur de vapeur avec foyer pour combustibles solides Download PDF

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Publication number
EP0227934B1
EP0227934B1 EP86115988A EP86115988A EP0227934B1 EP 0227934 B1 EP0227934 B1 EP 0227934B1 EP 86115988 A EP86115988 A EP 86115988A EP 86115988 A EP86115988 A EP 86115988A EP 0227934 B1 EP0227934 B1 EP 0227934B1
Authority
EP
European Patent Office
Prior art keywords
funnel
tubes
walls
trapezoidal
denotes
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
Application number
EP86115988A
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German (de)
English (en)
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EP0227934A1 (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
Gebrueder Sulzer AG
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Filing date
Publication date
Application filed by Gebrueder Sulzer AG filed Critical Gebrueder Sulzer AG
Publication of EP0227934A1 publication Critical patent/EP0227934A1/fr
Application granted granted Critical
Publication of EP0227934B1 publication Critical patent/EP0227934B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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 steam generator with the features of the preamble of claim 1.
  • the funnel In a steam generator of this type known from DE-OS 2 214 697, the funnel consists of two opposite, vertical, trapezoidal walls and two opposite, oblique, rectangular walls, the rectangular outlet opening located at the lower end of these four walls being so long like the length of each oblique rectangular wall.
  • the two vertical, trapezoidal walls thus form aligned extensions of two mutually parallel walls of the throttle cable and each delimit a short side of the rectangular outlet opening with their lower end.
  • the cross-section of the outlet opening is determined by the amount of ash and slag that passes through this opening and then falls on systems for discharging the ash, etc., underneath.
  • the invention has for its object to improve a steam generator of the type mentioned in such a way that both the laying out and the creation of the ash discharge systems connected to the funnel outlet opening and the manufacture of the tube walls of the funnel are simplified.
  • this object is achieved by the features of the characterizing part of claim 1.
  • This makes it possible to adapt the funnel to the ash discharge systems with regard to the length of its outlet opening, which increases the design freedom of the designer both with regard to the funnel and with regard to the ash discharge systems assembled from standard parts. It has been shown that this can be done more cost-effectively than the previously customary adaptation of the ash discharge systems exclusively to the width of the funnel outlet opening.
  • These advantages also come into play when a previously oil-fired steam generator is to be converted to coal firing. It is also possible to maintain a uniform distance between the helically wound tubes of all funnel walls and also the throttle cable walls, which considerably simplifies the manufacture of the tube walls on welding machines.
  • the steam generator has a vertical throttle cable 1 with a square cross section.
  • the throttle cable is formed from tubes 3, which are welded together in a gas-tight manner via webs 30 (FIG. 3).
  • a funnel 2 is arranged, which is also formed from tubes 13 welded to one another in gas-tight fashion via webs 33.
  • the funnel 2 has four flat, trapezoidal, oblique walls 2a and 2b, which delimit a rectangular outlet opening 4 with their lower, horizontal edges.
  • the short sides of the outlet opening 4 are assigned the two walls 2a which are the same and the long sides the two walls 2b which are also the same, but which are different from the funnel walls 2a.
  • the tube walls of the throttle cable 1 and the funnel 2 merge into one another in a gas-tight manner, the tubes 13 of the funnel 2 and the tubes 3 of the throttle cable 1 being wound helically.
  • the working fluid flowing through these tubes is fed in at the lower end of the tubes 13 and removed at the upper end of the tubes 3, so that it flows from the bottom to the top.
  • Coal dust burners are arranged in a known manner in the region of the vertical edges of the throttle cable 1 and form a tangential combustion of the steam generator.
  • the length of the outlet opening can be adapted in a simple manner to the adjoining, not shown, system for discharging the combustion residues. These systems can then be assembled from the standard parts without difficulty.
  • the accelerator cable can also have a rectangular cross section that deviates from the square cross section.

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  • 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)
  • Combustion Of Fluid Fuel (AREA)
  • Separating Particles In Gases By Inertia (AREA)

Claims (2)

1. Générateur de vapeur comportant un foyer pour combustibles solides, avec un conduit de gaz vertical, de section transversale rectangulaire, formé par des parois tubulaires soudées entre elles de manière étanche au gaz, à l'extrémité inférieure duquel est placée une trémie formée aussi de parois tubulaires soudées entre elles de manière étanche au gaz, dont quatre parois planes sont trapézoïdales et qui, à son extrémité inférieure, présente une ouverture de sortie rectangulaire, les tubes du conduit de gaz et les tubes de la trémie étant enroulés en hélice et traversés de bas en haut par le fluide de travail et les tubes de la trémie se raccordant directement à l'enroulement des tubes de conduit de gaz, caractérisé en ce que les deux autres parois de la trémie sont aussi trapézoïdales et en ce que, lorsque la trémie est développée, on a en même temps les rapports angulaires suivants:
Figure imgb0007
Figure imgb0008
Figure imgb0009
ou:
a est l'angle compris entre la verticale et un bord oblique de la paroi du trapèze délimitant un petit côté de l'ouverture de sortie,
β est l'angle compris entre la verticale et un bord oblique de la paroi du trapèze délimitant un grand côté de l'ouverture de sortie,
y est l'angle compris entre la verticale et une droite limite, se trouvant dans la paroi du trapèze délimitant un grand côté de l'ouverture de sortie, où l'inclinaison δ majoritaire des tubes enroulés en hélice se change en une inclinaison de transition ε,
δ est l'inclinaison des tubes de la trémie par rapport à l'horizontale, majoritaire dans les parois du trapèze et
e est l'inclinaison de transition des tubes, par rapport à l'horizontale dans la région comprise entre la droite limite et le bord oblique, adjacent à celle-ci et la paroi du trapèze.
2. Générateur de vapeur selon la revendication 1, caractérisé en ce que l'angle a est au maximum égal à 35°.
EP86115988A 1985-12-04 1986-11-18 Générateur de vapeur avec foyer pour combustibles solides Expired - Lifetime EP0227934B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH516685 1985-12-04
CH5166/85 1985-12-04

Publications (2)

Publication Number Publication Date
EP0227934A1 EP0227934A1 (fr) 1987-07-08
EP0227934B1 true EP0227934B1 (fr) 1990-08-22

Family

ID=4289028

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86115988A Expired - Lifetime EP0227934B1 (fr) 1985-12-04 1986-11-18 Générateur de vapeur avec foyer pour combustibles solides

Country Status (9)

Country Link
US (1) US4726323A (fr)
EP (1) EP0227934B1 (fr)
JP (1) JP2519221B2 (fr)
CN (1) CN1008394B (fr)
AU (1) AU587882B2 (fr)
CA (1) CA1283820C (fr)
DE (1) DE3673623D1 (fr)
IN (1) IN165916B (fr)
PL (1) PL153991B1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19527886A1 (de) * 1994-08-10 1996-02-15 Evt Energie & Verfahrenstech Dampferzeuger

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4232880A1 (de) * 1992-09-30 1994-03-31 Siemens Ag Dampferzeuger
US20050101993A1 (en) * 2002-10-04 2005-05-12 Howard Scalzo Antimicrobial packaged medical device and method of preparing same
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
EP1533565A1 (fr) * 2003-11-19 2005-05-25 Siemens Aktiengesellschaft Générateur de vapeur à passage unique

Family Cites Families (10)

* 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
CH368815A (de) * 1962-02-02 1963-04-30 Sulzer Ag Dampferzeuger
CH479024A (de) * 1967-08-31 1969-09-30 Sulzer Ag Bodenberohrung einer viereckigen Grundriss aufweisenden Brennkammer
CH549756A (de) * 1972-03-17 1974-05-31 Sulzer Ag Brennkammerberohrung.
DE2214697A1 (de) * 1972-03-25 1973-09-27 Sulzer Ag Brennkammerberohrung
CH549757A (de) * 1972-03-30 1974-05-31 Sulzer Ag Brennkammerberohrung.
DE2557427A1 (de) * 1975-12-19 1977-06-30 Kraftwerk Union Ag Schaltung einer feuerraumnase bei einem durchlaufkessel mit gasdicht verschweissten waenden in zweizugbauweise
JPS59197707A (ja) * 1983-04-22 1984-11-09 三菱重工業株式会社 炉底構造
DE3473026D1 (en) * 1983-08-31 1988-09-01 Sulzer Ag Vertical gas pass for a heat exchanger
CN1016532B (zh) * 1985-09-23 1992-05-06 劳舍兄弟有限公司 燃烧矿物燃料的蒸汽发生器

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19527886A1 (de) * 1994-08-10 1996-02-15 Evt Energie & Verfahrenstech Dampferzeuger

Also Published As

Publication number Publication date
AU587882B2 (en) 1989-08-31
US4726323A (en) 1988-02-23
EP0227934A1 (fr) 1987-07-08
CN1008394B (zh) 1990-06-13
CN86106709A (zh) 1987-06-10
DE3673623D1 (de) 1990-09-27
AU6605886A (en) 1987-06-11
PL262758A1 (en) 1987-10-19
JPS62134402A (ja) 1987-06-17
PL153991B1 (en) 1991-06-28
JP2519221B2 (ja) 1996-07-31
IN165916B (fr) 1990-02-10
CA1283820C (fr) 1991-05-07

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