EP0052939A1 - Chaudière à tubes d'eau - Google Patents

Chaudière à tubes d'eau Download PDF

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Publication number
EP0052939A1
EP0052939A1 EP81304917A EP81304917A EP0052939A1 EP 0052939 A1 EP0052939 A1 EP 0052939A1 EP 81304917 A EP81304917 A EP 81304917A EP 81304917 A EP81304917 A EP 81304917A EP 0052939 A1 EP0052939 A1 EP 0052939A1
Authority
EP
European Patent Office
Prior art keywords
devices
boiler
headers
opening
pipes
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.)
Withdrawn
Application number
EP81304917A
Other languages
German (de)
English (en)
Inventor
Ivor Llewellyn Hughes
Ralph Edgar Smith
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.)
ENCON Ltd
Original Assignee
ENCON Ltd
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 ENCON Ltd filed Critical ENCON Ltd
Publication of EP0052939A1 publication Critical patent/EP0052939A1/fr
Withdrawn legal-status Critical Current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
    • F22B37/001—Steam generators built-up from pre-fabricated elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B21/00—Water-tube boilers of vertical or steeply-inclined type, i.e. the water-tube sets being arranged vertically or substantially vertically
    • F22B21/22—Water-tube boilers of vertical or steeply-inclined type, i.e. the water-tube sets being arranged vertically or substantially vertically built-up from water tubes of form other than straight or substantially straight
    • F22B21/24—Water-tube boilers of vertical or steeply-inclined type, i.e. the water-tube sets being arranged vertically or substantially vertically built-up from water tubes of form other than straight or substantially straight bent in serpentine or sinuous form
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B21/00—Water-tube boilers of vertical or steeply-inclined type, i.e. the water-tube sets being arranged vertically or substantially vertically
    • F22B21/34—Water-tube boilers of vertical or steeply-inclined type, i.e. the water-tube sets being arranged vertically or substantially vertically built-up from water tubes grouped in panel form surrounding the combustion chamber, i.e. radiation boilers
    • F22B21/38—Component parts thereof, e.g. prefabricated panels
    • 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
    • F22B37/36—Arrangements for sheathing or casing boilers

Definitions

  • This invention relates to boilers, and to devices for use in constructing boilers, and its main object is to enable boilers of different sizes to be constructed with minimum cost for the supply of steam or hot water.
  • a further object of the invention is to provide for boilers of different sizes which are particularly suitable for burning waste materials such as straw, paper and wood waste.
  • a device for use in constructing a boiler comprising upper and lower horizontal headers, pipes connecting the headers together, said pipes having outwardly extending bends which in plan view are inclined to an approximately triangular shape, metal framework connected to the headers, refractory insulation between the framework and the pipes, connecting means extending from each end of the headers for connection to corresponding means of adjacent similar devices, said framework including a back casing plate and means of attachment to framework of adjacent similar devices.
  • a boiler comprising a plurality of such devices in which the lower parts of the tubes are vertical and at least one device in having a lower refractory wall provided with an opening therein for entry of fuel and an opening therein for exit of ashes, the lower header being disposed horizontally at the top of the wall, the devices all being connected together in the form of a polygon in plan.
  • the device comprises upper and lower tubular headers 10,11 respectively which are connected together by feed water boiler tubes 12.
  • these tubes have vertical lower portions and upper portions formed into two bends which project inwardly of the boiler and are inclined as shown in Figure 3 into an approximately triangular area.
  • the headers are fixed in a jig and the pipes are welded to them.
  • Horizontal girders or tie bars 15,16 (known as buck stays) are then welded to the tubes.
  • Steel casing in the form of a flat plate 17 is welded to the tie-bar 16.
  • Back plates 18,19,20 are then welded to the headers, tie-bar 15 and plate 17.
  • the plate 19 is between the adjacent girders.
  • the plate 18 is between the upper header and the adjacent girder 15 and the plate 20 is between the lower header 11 and the adjacent girder 16.
  • the back plates 18,19,20 are provided with flanges 21 at their vertical edges and these flanges are provided with bolt holes 22.
  • the girders 15,16 extend laterally beyond the plates and are provided with vertical bolt holes 24.
  • Lugs 25 are welded to each end of the headers 10,11 and each lug has a vertical bolt hole 26.
  • refractory cement 30 is filled in between the lower parts of the pipes and the plate 20 and refractory bricks 31 are cemented in between the upper part of the pipes and the back plates 18, 19.
  • the lower header 11 has a water inlet pipe 32 and a water drain pipe 33 and the upper header 10 has an outlet pipe 34 for steam or hot water.
  • the device above described can be factory made and stored ready for use to be shipped to the boiler site ready made and such devices can be used in any reasonable number to build boilers of different sizes - usually a minimum of six and a maximum of twelve such devices will be envisaged.
  • the lower vertical parts of the pipes 12 are omitted and the lower part of the device consists of a refractory wall 38 between side channel members 39, 40 to which is welded a back plate.
  • the lower header 11 in this case is disposed horizontally upon the wall 38.
  • the wall is provided with an opening 41 to receive a fuel inlet nozzle and with an opening 42 for taking out the ashes.
  • the opening 42 will be normally closed by a suitable door.
  • the channel members 39, 40 also have apertured lugs 44 welded to them.
  • all the devices may be constructed similar to that shown in Figure 5 except that all of them except one will be without the openings 41,42.
  • one lug on one side of a header may be higher than the lug on the other side.
  • the lugs 25 are shown connected in Figure 7 a bolt 48.
  • the back plates 18 are connected by a channel 45 by bolts 46 in the bolt holes 22.
  • Refractory backing 50 may be provided covering the back plates and channels 45.
  • FIG. 8 shows tie-bars 15 provided with angle irons 60 welded to them. These angle irons have back vertical flanges 61 connected by a plate 62 and bolts 63.
  • the devices are located on a refractory base 51 shaped to provide an inner annular well 52.
  • the base 51 carries a central upstanding refractory column 53 which extends up to the pipe bends.
  • A.cast iron rod 54 may be provided in the column for support.
  • the centre column also helps combustion in the water cooled furnace area and radiates heat back to the furnace tube.
  • the fuel inlet pipe 56 ( Figure 6) is disposed at a downwardly directed angle to one side of the column into the well 52 so that the hot combustion gases rise spirally around the column in a cyclonic pattern.
  • the boiler will be constructed with other necessary parts based on well known engineering principles.
  • suitable means are provided such as support columns, roof piping, fans and valves, steam/ water drum mounted on top of the devices to which all supply and riser tubes are connected.
  • the drum will have an internal baffle to separate steam and water.
  • the devices are standard modules which make the boiler cheap and quick to manufacture.
  • the modular construction lends itself to a complete module change if required for maintenance or repair purposes.
  • the boiler is intended primarily to burn combustible solid waste products capable of sustaining a self-propagating flame without assistance oil or other fuels although such fuel may be introduced with the waste for starting the boiler.
  • a pilot gas or oil burner may be used where a self sustaining full calorific value is not available or conventional fuel may be used.
  • a sluice system may be provided for ash removal.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
EP81304917A 1980-11-20 1981-10-20 Chaudière à tubes d'eau Withdrawn EP0052939A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8037265 1980-11-20
GB8037265 1980-11-20

Publications (1)

Publication Number Publication Date
EP0052939A1 true EP0052939A1 (fr) 1982-06-02

Family

ID=10517444

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81304917A Withdrawn EP0052939A1 (fr) 1980-11-20 1981-10-20 Chaudière à tubes d'eau

Country Status (4)

Country Link
EP (1) EP0052939A1 (fr)
JP (1) JPS57115603A (fr)
AU (1) AU7673481A (fr)
ZA (1) ZA817361B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0169256A1 (fr) * 1984-07-24 1986-01-29 Prime Boilers Inc. Chaudière à tubes d'eau
WO1996000869A1 (fr) * 1994-06-30 1996-01-11 Aalborg Marine Boilers A/S Chaudiere marine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU569559B2 (en) * 1983-11-16 1988-02-04 Lucas Boilers Pty. Ltd. Boiler construction

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE462844C (de) * 1926-11-21 1928-07-18 Schmidt Sche Heissdampf Ges M Dampferzeuger mit mittelbarer Dampferzeugung
US1790396A (en) * 1931-01-27 Helmshohe
US1879610A (en) * 1926-10-14 1932-09-27 Babcock & Wilcox Co Boiler casing
DE582807C (de) * 1931-08-14 1933-08-23 Schmidt Sche Heissdampf Ges M Lagerung von Rohrschlangen
GB648856A (en) * 1946-11-13 1951-01-17 Babcock & Wilcox Ltd Improvements in or relating to panelled sheet metal casings
FR1377255A (fr) * 1961-02-17 1964-11-06 Chaudière aquatubulaire

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1790396A (en) * 1931-01-27 Helmshohe
US1879610A (en) * 1926-10-14 1932-09-27 Babcock & Wilcox Co Boiler casing
DE462844C (de) * 1926-11-21 1928-07-18 Schmidt Sche Heissdampf Ges M Dampferzeuger mit mittelbarer Dampferzeugung
DE582807C (de) * 1931-08-14 1933-08-23 Schmidt Sche Heissdampf Ges M Lagerung von Rohrschlangen
GB648856A (en) * 1946-11-13 1951-01-17 Babcock & Wilcox Ltd Improvements in or relating to panelled sheet metal casings
FR1377255A (fr) * 1961-02-17 1964-11-06 Chaudière aquatubulaire

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0169256A1 (fr) * 1984-07-24 1986-01-29 Prime Boilers Inc. Chaudière à tubes d'eau
WO1996000869A1 (fr) * 1994-06-30 1996-01-11 Aalborg Marine Boilers A/S Chaudiere marine
US5673654A (en) * 1994-06-30 1997-10-07 Aalborg Marine Boilers A/S Marine boiler
CN1109842C (zh) * 1994-06-30 2003-05-28 阿尔博格船用锅炉股份有限公司(阿尔博格工业股份有限公司) 锅炉

Also Published As

Publication number Publication date
JPS57115603A (en) 1982-07-19
AU7673481A (en) 1982-05-27
ZA817361B (en) 1982-10-27

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): BE DE FR GB IT NL SE

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19830506

RIN1 Information on inventor provided before grant (corrected)

Inventor name: HUGHES, IVOR LLEWELLYN

Inventor name: SMITH, RALPH EDGAR