EP1015813B1 - Installation de chaudiere a combustible solide et unites de chambre de combustion et de gaz de combustion utilisees dans cette installation - Google Patents

Installation de chaudiere a combustible solide et unites de chambre de combustion et de gaz de combustion utilisees dans cette installation Download PDF

Info

Publication number
EP1015813B1
EP1015813B1 EP97943801A EP97943801A EP1015813B1 EP 1015813 B1 EP1015813 B1 EP 1015813B1 EP 97943801 A EP97943801 A EP 97943801A EP 97943801 A EP97943801 A EP 97943801A EP 1015813 B1 EP1015813 B1 EP 1015813B1
Authority
EP
European Patent Office
Prior art keywords
section
flue gas
lateral wall
combustion section
boiler
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
EP97943801A
Other languages
German (de)
English (en)
Other versions
EP1015813A1 (fr
Inventor
Hans Erik Askou
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.)
Aalborg Energie Technik AS
Original Assignee
Aalborg Energie Technik AS
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 Aalborg Energie Technik AS filed Critical Aalborg Energie Technik AS
Publication of EP1015813A1 publication Critical patent/EP1015813A1/fr
Application granted granted Critical
Publication of EP1015813B1 publication Critical patent/EP1015813B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • F22B21/341—Vertical radiation boilers with combustion in the lower part
    • F22B21/343—Vertical radiation boilers with combustion in the lower part the vertical radiation combustion chamber being connected at its upper part to a sidewards convection chamber

Definitions

  • the present invention relates to a solid fuel boiler plant burning solid fuel such as wood, straw, coal and sludge, said plant comprising a boiler, which comprises a combustion section extending from a lower part of the boiler upward to an upper part of the boiler, said combustion section being provided with pipings, which form lateral walls including a first lateral wall and a second lateral wall of the combustion section, said boiler also comprising a flue gas section extending in parallel with the combustion section from the upper part of the boiler downward to the lower part of the boiler and being provided with pipings, which form lateral walls, including a second lateral wall of the flue gas section, said boiler comprising a primary fuel inlet device, which is arranged at a lower part of the combustion section, and wherein an opening from the primary fuel inlet device to the combustion section is placed in a first lateral wall, alternatively a bottom, of the combustion section.
  • a boiler which comprises a combustion section extending from a lower part of the boiler upward to an upper part of the boiler, said combustion section being
  • the invention further relates to a furnace unit and a flue gas unit for use in a boiler of the above-mentioned type.
  • a boiler unit comprising a combustion section and a flue gas section.
  • the combustion section may also be designated the first section.
  • the flue gas section usually comprises two sections, an empty section designated the second section and an superheater section designated the third section, respectively.
  • the combustion section is formed as a room, which extends from a lower end to an upper end, and the flue gas section is formed as a room, which extends from an upper end to a lower end, and the flue gas section is defined by lateral walls, which are formed by pipings constituting tubular radiators or plate radiators.
  • the combustion section is provided with an inlet for solid fuel.
  • the inlet is positioned in a first lateral wall of the combustion section.
  • the outlet is positioned in a third lateral wall of the combustion section, said third lateral wall being opposite the first lateral wall.
  • an inlet designed to conduct flue gas from the combustion section outlet to the flue gas section.
  • the inlet in the flue gas section of known plants is positioned in a first lateral wall of the flue gas section.
  • the flue gas section is divided into a second section and a third section separated by a partition wall, which is formed by pipings.
  • Formed at the bottom of the flue gas section there is a passage from the second section to the third section.
  • the flue gas is conducted from the inlet at the top of the flue gas section down through the second section of the flue gas section through the passage, up through the third section past the superheater and to an outlet in an upper end of the flue gas section.
  • EP 0 566 099 describes a boiler for burning fuel in a fluidised bed in a plant of the type discussed above.
  • the flue gases are let out of the furnace from an upper part of the furnace through a lateral wall of the furnace.
  • the lateral wall of the furnace coincides with a lateral wall of the flue gas section.
  • the coinciding lateral walls have been chosen in such a manner that the flue gas is let through the combustion section, through the outlet of the combustion section, through the inlet of the flue gas section, through the flue gas section and out through the outlet of the flue gas section in such a manner that the flue gas extends in one and the same plane throughout the boiler.
  • known boilers have their combustion section and flue gas section arranged next to one another so that the inlet of the combustion section is positioned in a first lateral wall of the combustion section and the outlet of the combustion section is positioned in a third opposite lateral wall of the combustion section, and in such a manner that the inlet of the flue gas section is placed in a first lateral wall of the flue gas section, which coincides with the third lateral wall of the combustion section.
  • the boiler will be very elongated when the combustion section and the flue gas section are positioned next to one another. This means that during transport of the boiler from the place of manufacture to the plant site it is always necessary to transport the furnace unit and the flue gas unit separately due to big dimensions of the entire boiler consisting of both the furnace unit and the flue gas unit next to one another.
  • a boiler volume is sufficiently large compared to a surface area of the boiler to maintain a required burning temperature since a distance from the inside of the combustion section to the lateral walls of the combustion section is larger.
  • a volume of the boiler is smaller compared to a surface area of the boiler. This means that it may be difficult or energy-consuming to maintain a sufficient burning temperature in small plants since a distance from the inside of the combustion section to the lateral walls of the combustion section is smaller. This applies particularly to small plants with elongated furnaces.
  • the large ratio of surface area to volume also means that especially in smaller plants it is difficult to control the temperature in the combustion section, which is of great importance by the decomposition of different noxious flue gases.
  • Secondary fuel inlet devices may only be used on the second lateral wall and the fourth lateral wall of the combustion section, and the flue gas section, respectively. This means that secondary fuel inlet devices is limited by the lesser distance from the second lateral wall to the fourth lateral wall. Secondary fuel inlet devices also perform firing perpendicularly to a plane of symmetry of a direction of flow of a flue gas and thereby disturb the flow of the flue gas through the boiler. A plane of symmetry for the flow direction of the flue gas extends in parallel with the direction of firing of the primary fuel inlet device.
  • a boiler with these features opens the possibility for a quite new and appreciably different boiler structure that does not have the previously mentioned drawbacks, but instead implies several advantages.
  • a boiler according to the invention implies another and less uniform flow of flue gas through the combustion section and the flue gas section, but this is compensated by the advantages which the boiler has.
  • the flow of the flue gas through the combustion section and through the flue gas section takes place in two different planes in parallel and different from earlier known boilers where the flow of the flue gas takes place in one and the same plane.
  • a furnace unit in a boiler of the above-mentioned type comprises lateral walls.
  • the lateral walls are formed by pipings.
  • a first lateral wall has an inlet to a combustion section, a second lateral wall is adjacent to the first lateral wall, and the second lateral wall has an outlet from the combustion section.
  • a fuel inlet device in a first lateral wall of the combustion section such as shown in WO 95/07437, alternatively, at the bottom of the combustion section such as shown in GB 1 418 456, and the outlet of the combustion section is provided in a second or third lateral wall of the combustion section.
  • the second or third lateral wall constitute an integrated part of both the combustion section and the flue gas section, so that these two sections are built, transported and raised as an integrated structure. By providing a furnace unit, this unit may be built and transported separately from a flue gas unit.
  • An embodiment of a furnace unit has a combustion section provided with a lining, which lining extends from a position over the lower part of the combustion section in a direction towards the upper part of the combustion section.
  • the lining extends from a position over the lower part of the combustion section corresponding to a fourth of the vertical extension of the combustion section to a position corresponding to three quarters of the vertical extension of the combustion section.
  • the lining extends from a position over the lower part of the combustion section corresponding to half of the vertical extension of the combustion section to a position corresponding to three quarters of the vertical extension of the combustion section.
  • a flue gas section for use in a boiler of the kind mentioned above is peculiar in that the interior of the flue gas section comprises a partioning wall extending between the second lateral wall and a fourth lateral wall, and that the partioning wall forms a barrier between the inlet and the outlet.
  • the inlet for the flue gas section is provided in what corresponds to a first lateral wall of the flue gas section.
  • the first lateral wall of the flue gas section is coincident with the third lateral wall of the combustion section in most common known boilers, and it is not as in the present invention coincident with the second lateral wall of the combustion section.
  • a boiler according to the invention has a structure implying that especially smaller boiler plants achieve a greater efficiency and become easier to transport from the place of production to the construction site.
  • the efficiency is increased by the surface area being relatively small compared to the volume. This means, that the possibility of maintaining a sufficient temperature in the combustion section and the possibility of controlling the temperature in the combustion section are increased.
  • the transport of the plant from the place of production to the construction site is eased by it being possible for smaller plants to transport the whole boiler in assembled condition and comprising both the furnace unit and the flue gas unit. This means that it is possible to perform almost all machining operations at the place of production while at the same time the transport only comprises one single shipment.
  • the efficiency may be further increased by providing a lining according to the invention in the combustion section.
  • the lining according to the invention implies that for small boilers it becomes possible to remove both NO x -compositions and noxious unburnt gases, e.g. CO-compositions, before the flue gas is conducted to the flue gas section.
  • the lining does not extend down to the lower part of the combustion section in order not to risk to high combustion temperature by the burning of e.g. dry wood refuse.
  • the lining does not extend in the full height of the combustion section in order not to risk a too high temperature in the uppermost part of the combustion section with the consequence of lacking decomposition of NO x -compositions.
  • the boiler according to the invention is provided with a lining it is possible to improve the temperature for fire up through the combustion section, so that a sufficiently low combustion temperature is achieved in order to reduce corrosion and creation of clinker at the same time as a sufficiently high combustion temperature is achieved in order to ensure burning off of noxious gases like CO.
  • Fig. 1 illustrates a boiler plant according to the invention.
  • the boiler plant comprises a combustion section 5 and a flue gas section 6.
  • the illustration is seen from the front and perpendicularly to a first lateral wall 1 (see Fig. 2 and Fig. 3) and a third lateral wall 3 (see Fig. 2 and Fig. 3) of the combustion section 5 and the flue gas section 6, respectively, and in parallel with a second lateral wall 2 and a fourth lateral wall 4 of the combustion section 5 and the flue gas section 6.
  • the combustion section 5 comprises a grate 7 in a lowermost part of the combustion section 5 and a lining 8 along the lateral walls 1,2,3,4 of the combustion section 5.
  • the flue gas section 6 comprises a first superheater 9 and a second superheater 10.
  • the second lateral wall 2 of the combustion section 5 and the second lateral wall 12 of the flue gas section 6 are coincident and form a screen wall between the combustion section 5 and the flue gas section 6.
  • a passageway 15 (see Fig. 5) between an upper part of the combustion section 5 and an upper part of the flue gas section 6 forms an outlet for flue gases from the combustion section 5 and inlet for flue gas to the flue gas section 6.
  • the course of the flow of the flue gas is illustrated by arrows.
  • the flue gas flows from the lower part of the flue gas section 5 upwards through the interior 16 of the combustion section 5 past the lining 8 and out through the passageway 15 (see Fig. 5) in the second lateral wall 2.
  • the flue gas then flows into the flue gas section 6 and downwards through a first zone 17 (see Fig. 3).
  • the second section 17 is positioned before the first superheater 9 and the second superheater 10 in a plane above the plane of the paper.
  • the flue gas is further conducted from a lower part of the second section 17 to the lower parts of a second zone 18 (see Fig. 3) through a passageway 19 (see Fig.
  • the first lateral wall 1,11, the second lateral wall 2, 12, the third lateral wall 3,13, and the fourth lateral wall 4,14 of the combustion section 5, the flue gas section 6, and the partitioning wall 20, respectively, are formed by pipings 22. Between the pipings 22 there are mounted plate elements 23 (se Fig. 4 and Fig. 5) to form a tight side wall.
  • the pipings 22 are mutually connected at upper ends and at lower ends with further pipings 24, so-callled connectors.
  • the pipings 22 contain a heat transmission means, preferably water/steam.
  • the boiler plant according to the invention is provided with a steam tank 25 in which steam under pressure created by the heating of water in the pipings 22 is collected and conducted further on to the first superheater 9 and the second superheater 10.
  • the superheated steam may be conducted further on from the first superheater 9 and the second superheater 10 to e.g. a steam turbine in an electric power plant or to another kind of energy transformation.
  • Fig. 2 illustrates a furnace unit according to the invention for use in a boiler plant according to the invention.
  • the furnace unit comprises a combustion section 5.
  • the combustion section 5 has a first lateral wall 1, a second lateral wall 2 (see Fig. 1), a third lateral wall 3, and a fourth lateral wall 4 (see Fig. 1).
  • the lateral walls 1,2,3,4 are formed by the pipings 22 (see Fig. 4 and Fig. 5).
  • an orifice 26 for introducing solid fuel to the combustion section 5.
  • the grate 7 is provided lowermost in the combustion section 5.
  • the orifice 26 forms a passageway between a feeding device (not shown) for solid fuel, preferably a Spreader-stoker or a pneumatic feeding device.
  • a Spreader-stoker or pneumatic feeding device may be used in combination with different kinds of grates 7 like moving grate, stair grate, vibrating grate, pushing grate, or another grate.
  • a Spreader-stoker or another pneumatic feeding device is intended to be mounted outside the orifice 26 and to conduct the solid fuel from a silo (not shown) into the combustion section 5 by mechanical or pneumatic feeding into the combustion section 5.
  • Spreader-stoker and pneumatic feeding device may be used separately or in combination.
  • the grate is utilised by conducting solid fuel onto the grate 7 and burning it to ashes on the grate 7, whereafter the ash is conveyed from the grate 7 by its movement down in a removal duct 27 and further on by means of a screw conveyor 28.
  • another removal device may be used.
  • Spreader-stoker, pneumatic feeding device, pushing grate, stair grate, vibrating grate, moving grate, or another kind of grate all constitute known art.
  • Other known art for the feeding of solid fuel, for burning off and for removal of burned fuel may also be utilised.
  • a primary feeding device at the lower part of the combustion section in the form of an external pre-furnace, in which primary combustion and gasification take place.
  • the combustion section 5 is provided with a lining 8 along the first lateral wall 1, the second lateral wall 2, the third lateral wall 3 and the fourth lateral wall 4.
  • the lining 8 extends from a position p1 over the lower part of the combustion section 5 to a position p2 under the upper part of the combustion section 5.
  • the lining 8 extends from a position p1 over the lower part of the combustion section 1 corresponding to about half of the vertical extension h of the combustion section to a position p2 corresponding to about three fourth of the vertical extension h of the combustion section.
  • the lining 8 is made from a ceramic material and is placed between the side walls 1,2,3,4 of the combustion section 5 and the interior 16 of the combustion section 5. The lining 8 covers in this way some of the extension of the side walls 1,2,3,4 of the combustion section 5.
  • Fig. 3 illustrates a flue gas unit according to the invention for use in a boiler plant according to the invention.
  • the flue gas unit comprises a flue gas section 6.
  • the flue gas section 6 has a first lateral wall 11, a second lateral wall 12 (see Fig. 1), a third lateral wall 13, and a fourth lateral wall 14 (see Fig. 1).
  • the lateral walls 11,12,13,14 are formed by the pipings 22 (see Fig. 4 and Fig. 5).
  • the flue gas section is divided into a second section 17 and a third section 18, which are separated by a partitioning wall 20.
  • the partitioning wall 20 is formed by the pipings 22 and extends from a position p3 uppermost in the flue gas section 6 to a position p4 over a lower part of the flue gas section 6.
  • a passageway 19 under the partitioning wall 20 is formed between the second section 17 and the third section 18.
  • the second section 17 of the flue gas section 6 is provided in the uppermost part with a passageway 15 (see Fig. 5) extending between the uppermost part of the combustion section 5 through the second lateral wall 2 of the combustion section 5 and the flue gas 6, respectively, to the uppermost part of the flue gas section 6.
  • the third section 18 of the flue gas section is provided with the first superheater 9 and the second superheater 10.
  • An uppermost part of the third section 18 is provided with the outlet 21 for flue gas from the flue gas section 6.
  • Flue gas from the combustion in the combustion section 5 is intended to be conducted into the flue gas section 6 through the passageway 15 in the uppermost part of the second section 17, further on downwards in the second section 17 through the passageway 19 under the partitioning wall 20 between the second section 17 and the third section 18, further on upwards through the third section 18 and past the second superheater 10 and the first superheater 9 and out through the outlet 21 in the upper part of the third section 18.
  • Fig. 4 illustrates a boiler plant seen in a first plane from above and from an uppermost part of the combustion section 5 and the flue gas section 6, respectively.
  • the figure shows the first lateral wall 1,11, the second lateral wall 2,12, the third lateral wall 3,13, and the fourth lateral wall 4,14 of the combustion section 5 and the flue gas section 6, respectively.
  • the second lateral wall 2,12 of the combustion section 5 and the flue gas section 6, respectively are coincident and form a screen wall between the combustion section 5 and the flue gas section 6.
  • the Figure also shows the partitioning wall 20 between the second section 17 and the third section 18 of the flue gas section 6 and the first superheater 9 and the second superheater 10, which are illustrated superimposed .
  • Fig. 5 illustrates the boiler plant as seen in a second plane from above and from the upper part of the combustion section 5 and the flue gas section 6, respectively.
  • the Figure shows the first lateral wall 1,11, the second lateral wall 2,12, the third lateral wall 3,13, and the fourth lateral wall 4,14 of the combustion section 5 and the flue gas section 6, respectively.
  • the second lateral wall 2 of the combustion section 5 and the flue gas section 6, respectively are coincident and form a screening wall between the combustion section 5 and the flue gas section 6.
  • the Figure also shows the partitioning wall 20 between the second section 17 and the third section 18 of the flue gas section 6 and the first superheater 9.
  • the second lateral wall 2,12 of the combustion section 5 and the flue gas section 6, respectively, forming screen wall and separation between the combustion section 5 and the flue gas section 6 in the shown illustration is provided with the passageway 15 forming outlet for the flue gas from the combustion section 5 and the inlet for the flue gas to the flue gas section 6.
  • the passageway 15 is formed in a known way by placing the pipings 22 that form the screen wall as triples in a plane Q perpendicularly on a plane P for the screen wall.
  • lateral wall forming screening wall between the combustion section 5 and the flue gas section 6 is the second lateral wall 2, 12 of the combustion section 5 and the flue gas section 6, respectively.
  • first lateral wall 1,11 and the third lateral wall 3,13 of the combustion section 5 and the flue gas section 6, respectively have external surfaces that are free.
  • the external surfaces of the first lateral wall 1,11 and the third lateral wall 3,13 are mostly suited for mounting of secondary equipment (not shown) like air supply devices and devices for combustion of secondary solid fuels like grinding dust from the wood working industry.
  • the first lateral wall 1,11 and the third lateral wall 3,13 are mostly suited for this as the first lateral wall 1,11 and the third lateral wall 3,13 extend perpendicularly from a plane of symmetry S for a direction of flow of the flue gas in the combustion section 5 and the flue gas section 6.
  • the equipment that is mounted on the first lateral wall 1,11 and/or the third lateral wall 3,13 will thus conduct e.g. air into the combustion section 5 in a direction in parallel with and not perpendicularly to the plane of symmetry S for the direction of flow of the flue gas.
  • This means that the throw length or the flame length will become as large as possible for plants with elongated combustion space.
  • firing performed with secondary equipment does not disturb the flow of flue gas through the boiler.
  • the boiler according to the invention has a volume of 90 m 3 and an external surface area of the lateral walls of 165 m 2 of which 120 m 2 constitutes the outer lateral walls.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Combustion Of Fluid Fuel (AREA)
  • Pre-Mixing And Non-Premixing Gas Burner (AREA)
  • Fluidized-Bed Combustion And Resonant Combustion (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Chimneys And Flues (AREA)
  • Solid-Fuel Combustion (AREA)

Claims (7)

  1. Installation de chaudière à combustible solide brûlant du combustible solide par exemple du bois, du pail, du charbon et des boues, ladite installation comprenant une chaudière qui comprend une section combustion (5) s'étendant d'une partie inférieure de la chaudière vers le haut jusqu'à une partie supérieure de la chaudière, ladite section combustion (5) étant prévue de tuyauteries (22) qui forment des parois latérales (1, 2, 3, 4) comprenant une première paroi latérale (1) et une deuxième paroi latérale (2) de la section combustion (5), ladite deuxième paroi latérale (2) étant adjacente à la première paroi latérale (1), ladite chaudière comprenant aussi une section de gaz de combustion (6) s'étendant parallellement à la section combustion (5) de la partie supérieure de la chaudière vers le bas jusqu'à la partie inférieure de la chaudière et étant prévue de tuyauteries (22), qui forment des parois latérales (11, 12, 13, 14), comprenant une deuxième paroi latérale (12) de la section de gaz de combustion (6), ladite chaudière comprenant un premier dispositif d'admission de combustible avec une ouverture qui est disposée à une partie inférieure, de préférence au fond, de la première paroi latérale (1) de la section combustion (5), et dans ladite chaudière la deuxième paroi latérale (12) de la section de gaz de combustion (6) coïncide avec la deuxième paroi latérale (2) de la section combustion (5) et dans laquelle un passage (15) formant une sortie de la section combustion vers la section de gaz de combustion, est positionné dans la deuxième paroi latérale (2) de la section combustion, et un passage (15) formant une admission dans la section de gaz de combustion (6) de la section combustion (5) est positionné dans la deuxième paroi latérale (12) de la section de gaz de combustion (6) et ladite section de gaz de combustion comprenant une deuxième section (17) et une troisième section (18), caractérisée en ce que la deuxième section (17) et la troisième section (18) sont séparées par une cloison de séparation (20) et que la cloison de séparation (20) s'étend vers l'extérieur de la deuxième paroi latérale (2, 12) dans la section de gaz de combustion (6), que la deuxième section (17) définit un passage de gaz de combustion vers le bas à partir du passage (15) vers un passage (19) au-dessous de la cloison de séparation (20) et que la troisième section (18) définit un passage de gaz de combustion vers le haut adjacent à partir dudit passage (19) vers une sortie de gaz de combustion (21).
  2. Installation de chaudière à combustible solide selon la revendication 1, caractérisée en ce que la cloison de séparation (20) est créée par des tuyauteries (22), que la cloison de séparation (20) s'étend à partir du haut de la section de gaz de combustion vers le bas à une postion au-dessus du fond de la section de gaz de combustion, et qu'un passage (19) entre la deuxième section (17) et la troisième section (18) est formé au-dessous de la cloison de séparation (20).
  3. Installation de chaudière à combustible solide selon la revendication 1 ou 2, caractérisée en ce que la section combustion (5) a une section de coupe rectangulaire vue parallèlement à l'extension verticale (h) de la section combustion (5), que la première paroi latérale (1) de la section combustion (5) s'étend dans un plan substantiellement vertical, que la deuxième paroi latérale (2) de la section combustion s'étend dans un deuxième plan substantiellement vertical (P) perpendiculaire au premier plan, et que la deuxième paroi latérale (12) de la section de gaz de combustion (6) s'étend aussi dans le deuxième plan substantiellement vertical (P).
  4. Installation de chaudière à combustible solide selon l'une quelconque des revendications précédentes, caractérisée en ce que la chaudière possède une largeur d'entre 2m et 7m, de préférence entre 2m et 4m, davantage entre 2,5m et 3,5m, et une profondeur d'entre 2m et 5m, de préférence entre 3m et 4m.
  5. Installation de chaudière à combustible solide selon l'une quelconque des revendications précédentes, caractérisée en ce que la section combustion (5) a une largeur d'entre 1m et 4m, de préférence entre 1m et 2m, davantage entre 1,5 m et 2m, et que la section de gaz de combustion (6) a une largeur d'entre 1m et 4 m, de préférence entre 1m et 2m, davantage entre 1m et 1,5m.
  6. Installation de chaudière à combustible solide selon l'une quelconque des revendications précédentes, caractérisée en ce que la sortie (15) de la section combustion (5) est positionnée dans la partie supérieure de la deuxième paroi latérale (2) de la section combustion (5), que la sortie (15) s'étend tout au long de la moitié au plus de l'extension horisontale de la deuxième paroi latérale de la section combustion et tout au long de la moitié au plus de l'extension verticale de la deuxième paroi latérale de la section combustion.
  7. Installation de chaudière à combustible solide selon l'une quelconque des revendications précédentes, caractérisée en ce que la section combustion (3) a une troisième paroi latérale s'étendant à l'opposé de la première paroi latérale (1), et que la troisième paroi latérale est prévue de dispositifs secondaires d'admission de combustible.
EP97943801A 1996-10-18 1997-10-17 Installation de chaudiere a combustible solide et unites de chambre de combustion et de gaz de combustion utilisees dans cette installation Expired - Lifetime EP1015813B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DK115596 1996-10-18
DK115596 1996-10-18
PCT/DK1997/000456 WO1998017946A1 (fr) 1996-10-18 1997-10-17 Installation de chaudiere a combustible solide et unites de chambre de combustion et de gaz de combustion utilisees dans cette installation

Publications (2)

Publication Number Publication Date
EP1015813A1 EP1015813A1 (fr) 2000-07-05
EP1015813B1 true EP1015813B1 (fr) 2002-04-17

Family

ID=8101631

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97943801A Expired - Lifetime EP1015813B1 (fr) 1996-10-18 1997-10-17 Installation de chaudiere a combustible solide et unites de chambre de combustion et de gaz de combustion utilisees dans cette installation

Country Status (10)

Country Link
EP (1) EP1015813B1 (fr)
AT (1) ATE216475T1 (fr)
AU (1) AU4551497A (fr)
BR (1) BR9712331A (fr)
CZ (1) CZ297187B6 (fr)
DE (1) DE69712112T2 (fr)
DK (1) DK1015813T3 (fr)
ES (1) ES2178007T3 (fr)
PL (1) PL186730B1 (fr)
WO (1) WO1998017946A1 (fr)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1426623A1 (de) * 1965-01-30 1969-10-23 Rheinstahl Henschel Ag Wasserrohr-Dampferzeuger mit Naturumlauf
GB1418456A (en) * 1971-10-19 1975-12-17 Foster Wheeler Brown Boilers Steam boilers
FR2271506B1 (fr) * 1974-05-15 1977-01-07 Carosso Victor
SE402636B (sv) * 1977-04-28 1978-07-10 Svenska Maskinverken Ab Anordning vid panna
JP3266626B2 (ja) * 1991-09-03 2002-03-18 株式会社ヒラカワガイダム 排熱回収装置を設けたコーゼネレイション又は複合発電システム
JP2835895B2 (ja) * 1992-04-17 1998-12-14 株式会社荏原製作所 分割型流動床水管ボイラ
CA2105602A1 (fr) * 1993-09-07 1995-03-08 Ola Herstad Chaudiere a vapeur
WO1996039594A1 (fr) * 1995-06-05 1996-12-12 Combustion Engineering, Inc. Chaudiere prefabriquee monobloc

Also Published As

Publication number Publication date
DE69712112T2 (de) 2002-12-05
ES2178007T3 (es) 2002-12-16
PL186730B1 (pl) 2004-02-27
CZ297187B6 (cs) 2006-09-13
ATE216475T1 (de) 2002-05-15
BR9712331A (pt) 1999-08-31
DE69712112D1 (de) 2002-05-23
PL332731A1 (en) 1999-10-11
DK1015813T3 (da) 2002-08-12
EP1015813A1 (fr) 2000-07-05
WO1998017946A1 (fr) 1998-04-30
AU4551497A (en) 1998-05-15
CZ9901365A3 (cs) 2001-11-14

Similar Documents

Publication Publication Date Title
EP0005964B1 (fr) Chaudière et moyens de combustion pour celle-ci
US4267801A (en) Circulating fluidized bed boiler
US5161471A (en) Apparatus for reburning ash material of a previously burned primary fuel
EP0328359A2 (fr) Procédé d'incinération de déchets humides
CN102042600B (zh) 一种循环流化床垃圾焚烧锅炉
US2592491A (en) Garbage incinerating unit
KR100353138B1 (ko) 분할형유동층수관보일러
CN101122385A (zh) 煤制气一体化洁净燃烧锅炉
CN102322640A (zh) 垃圾焚烧锅炉
EP1015813B1 (fr) Installation de chaudiere a combustible solide et unites de chambre de combustion et de gaz de combustion utilisees dans cette installation
US4268244A (en) Fluid bed furnaces
EP0044316A1 (fr) Chambres de combustion a lit gicle et fluidise
US3499401A (en) Cyclone furnace
US3669039A (en) Refuse burner for wood waste,bark residues,and other combustible solids
RU49602U1 (ru) Чугунный секционный котел малой мощности с топкой высокотемпературного кипящего слоя
JP3140180B2 (ja) ボイラ
US4058087A (en) Boiler
RU2253797C1 (ru) Теплогенератор
CN2898610Y (zh) 一种煤气化燃烧锅炉
RU41837U1 (ru) Комбинированный котел для сжигания угля в высокотемпературном кипящем слое
SU976222A1 (ru) Печь дл сжигани отходов
RU2044953C1 (ru) Установка для сжигания древесных отходов
US4667613A (en) Horizontal industrial boiler system with improved ash removal means
PL235664B1 (pl) Sposób i kocioł energetyczny do niskoodpadowego spalania stałych paliw pylistych zwłaszcza biomasy i paliw alternatywnych, z dodatkiem popiołu odpadowego
FI69695C (fi) Elektrisk taendningsloesning foer flytbaeddspanna

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

17P Request for examination filed

Effective date: 19990429

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FI FR GB IE IT LI NL PT SE

AX Request for extension of the european patent

Free format text: LT PAYMENT 19990429

17Q First examination report despatched

Effective date: 20010228

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE DK ES FI FR GB IE IT LI NL PT SE

AX Request for extension of the european patent

Free format text: LT PAYMENT 19990429

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20020417

Ref country code: LI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20020417

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20020417

Ref country code: CH

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20020417

REF Corresponds to:

Ref document number: 216475

Country of ref document: AT

Date of ref document: 20020515

Kind code of ref document: T

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REF Corresponds to:

Ref document number: 69712112

Country of ref document: DE

Date of ref document: 20020523

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20020717

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
ET Fr: translation filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021017

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021017

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2178007

Country of ref document: ES

Kind code of ref document: T3

LTIE Lt: invalidation of european patent or patent extension

Effective date: 20020417

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20030120

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20021017

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 19

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20161027

Year of fee payment: 20

Ref country code: FR

Payment date: 20161025

Year of fee payment: 20

Ref country code: DK

Payment date: 20161025

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20161027

Year of fee payment: 20

Ref country code: AT

Payment date: 20161004

Year of fee payment: 20

Ref country code: BE

Payment date: 20161027

Year of fee payment: 20

Ref country code: IT

Payment date: 20161024

Year of fee payment: 20

Ref country code: ES

Payment date: 20161026

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 69712112

Country of ref document: DE

REG Reference to a national code

Ref country code: DK

Ref legal event code: EUP

Effective date: 20171017

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK07

Ref document number: 216475

Country of ref document: AT

Kind code of ref document: T

Effective date: 20171017

REG Reference to a national code

Ref country code: BE

Ref legal event code: MK

Effective date: 20171017

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20180507

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20171018