EP1566591A1 - Heizkessel mit Flammeumkehrung - Google Patents

Heizkessel mit Flammeumkehrung Download PDF

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Publication number
EP1566591A1
EP1566591A1 EP04447047A EP04447047A EP1566591A1 EP 1566591 A1 EP1566591 A1 EP 1566591A1 EP 04447047 A EP04447047 A EP 04447047A EP 04447047 A EP04447047 A EP 04447047A EP 1566591 A1 EP1566591 A1 EP 1566591A1
Authority
EP
European Patent Office
Prior art keywords
module
flame
reversing
boiler according
chamber
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
EP04447047A
Other languages
English (en)
French (fr)
Other versions
EP1566591B1 (de
EP1566591B8 (de
Inventor
Roland Albrecht
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.)
Biasi SpA
Original Assignee
BREVET 2000 HOLDING SA
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 BREVET 2000 HOLDING SA filed Critical BREVET 2000 HOLDING SA
Priority to EP04447047A priority Critical patent/EP1566591B8/de
Priority to AT04447047T priority patent/ATE408788T1/de
Priority to DE602004016619T priority patent/DE602004016619D1/de
Publication of EP1566591A1 publication Critical patent/EP1566591A1/de
Publication of EP1566591B1 publication Critical patent/EP1566591B1/de
Application granted granted Critical
Publication of EP1566591B8 publication Critical patent/EP1566591B8/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B50/00—Combustion apparatus in which the fuel is fed into or through the combustion zone by gravity, e.g. from a fuel storage situated above the combustion zone
    • F23B50/02—Combustion apparatus in which the fuel is fed into or through the combustion zone by gravity, e.g. from a fuel storage situated above the combustion zone the fuel forming a column, stack or thick layer with the combustion zone at its bottom
    • F23B50/06—Combustion apparatus in which the fuel is fed into or through the combustion zone by gravity, e.g. from a fuel storage situated above the combustion zone the fuel forming a column, stack or thick layer with the combustion zone at its bottom the flue gases being removed downwards through one or more openings in the fuel-supporting surface
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B7/00—Combustion techniques; Other solid-fuel combustion apparatus
    • F23B7/002—Combustion techniques; Other solid-fuel combustion apparatus characterised by gas flow arrangements
    • F23B7/005—Combustion techniques; Other solid-fuel combustion apparatus characterised by gas flow arrangements with downdraught through fuel bed and grate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B2700/00—Combustion apparatus for solid fuel
    • F23B2700/01—Combustion apparatus for solid fuel adapted for boilers built up from sections

Definitions

  • the subject of the present invention is a boiler with a reverse flame of the type having a superior chamber for the storage of the fuel, connected, through an opening in its own bottom or grid, to a lower chamber in which the combustion takes place.
  • a gap has been created all around the structure that defines the two rooms in which circulates the water to be heated.
  • the air used in the combustion is fed as well in the upper chamber only at the height of the opening or communication openings.
  • the technical objective laid down at the base of this invention is to realize a flame inversion boiler which overcomes the mentioned drawbacks.
  • the present invention has the technical objective of make a flame inversion boiler that has a life time superior to the boilers known today and which guarantees excellent resistance to pressure variations created in the interstice.
  • the present invention also has the technical objective of producing a flame-reversing boiler that has a better ratio price / duration compared to boilers known today.
  • reference numeral 1 indicates in the whole a flame inversion boiler following the present invention.
  • the boiler 1 comprises first of all a 2 closed structure which determines, in its internal part, a room upper 3 for fuel storage and a lower chamber 4 of combustion. Between the two chambers, upper 3 and lower 4, an elongate communication opening 5 has been made.
  • Structure 2 also defines a main gap 6, for the passage of water to heat, which extends, at least in part, around upper chamber 3 and lower chamber 4, although preferably, it surrounds it almost completely, as shown by the figures attached.
  • this structure 2 has been realized cast iron and is formed of the union of modular parts.
  • a frontal module 7 (figures from 2 to 9), able to constitute the front of the boiler 1, a rear module 8 ( Figures 18 to 26), able to constitute the rear part of structure 2, and a plurality of intermediate modules 9 ( Figures 10 to 17) mounted in succession and sealed, between the front module 7 and the rear module 8.
  • Each module 7, 8, 9, which has a mainly vertical development, constitutes a cross section of the structure 2 and has a face before 10 and a rear face 11.
  • the two faces 10, 11 are identical.
  • At least the intermediate modules 9 each define, a section of the upper chamber 3, the lower chamber 4 and of the communication opening 5.
  • Each of them has, in their internal part, at least one gap 12, which, once the structure 2 is assembled, is connected to secondary interstices 12 of the other intermediate modules 9 for constitute the main gap 6.
  • the front module 7 and the rear module 8 present inside, as we said, a secondary gap 12 which can be connected to the secondary interstices 12 intermediate modules 9 to form the main gap 6.
  • each module has holes provided for this purpose.
  • the intermediate modules 9 have at least two rear orifices 13 and at least two orifices 14 beforehand respectively on their own rear face 11, and on their own face before 10.
  • the front holes 14 are horizontally aligned with the rear openings 13.
  • the mounted structure 2 the front orifices 14 (rear 13) of an intermediate module 9 are aligned with the rear ports 13 (before 14) of an intermediate module 9 associated with its front face 10 (rear 11), so as to allow the circulation of the water to be heated between the secondary interstices 12 of the two intermediate modules 9 coupled.
  • the front module 7 and the rear module 8 present respectively two rear ports 13 and two front ports 14 practiced on their own backs 11 and before 10 and arranged so that when the respective module (front 7 or rear 8) is connected to an intermediate module 9, they find themselves aligned horizontally respectively with the front and rear openings 14 of this intermediate module 9.
  • the two orifices 13, 14, made on each face 10, 11 of each module 7, 8, 9, are placed one at the top and one at the base of it.
  • the module front 7 and the rear module 8 respectively have two orifices before 14 and back 13 also on their respective faces (respectively rear 11 and before 10) not intended to be coupled to the modules intermediaries 9.
  • At least two of these orifices 13, 14 have the purpose of being used as a water inlet section 15 and as a water outlet section 16 for the main gap 6.
  • the boiler shape produced and illustrated provides that the section water inlet 15 consists of the rear hole 13 located at the base of the rear face 11 of the rear module 8, and that the output section 16 on the other hand consists of the rear orifice 13, located at the top of the same face 11.
  • the front orifices 14 of the front face 10 of the front module 7 are closed by two caps 17 which, according to the requirements, can also be equipped with control probes, such as a temperature or pressure probe (not shown).
  • the entry and output 15, 16 can both be made in the front module 7, one on the front module 7 and one on the rear module 8, or doubled and therefore interest all four orifices 13, 14.
  • boiler 1 illustrated in the accompanying figures, are provided two water outlet sections 16, both practiced in the module 8.
  • the water that enters through the input section 15 follows a plurality of parallel paths through the modules 7, 8, 9 to exit, once hot, the outlet section 16.
  • FIGS. 27 and 28 show, the connection between two orifices 13, 14 facing each other of two modules 7, 8, 9 consecutive, is obtained through a sleeve of connector 18 inserted therein (preferably recessed) to connect the secondary interstices 12.
  • the sleeve 18 may have a shape cylindrical or the shape of two truncated cones united by the base (as illustrated for example in Figure 28).
  • each sleeve 18 has a length corresponding to the thickness of the material which constitutes the two modules 7, 8, 9 coupled, and therefore the length of the two orifices 13, 14 where it is inserted. In this case, the sleeves 18 do not protrude inside the interstices secondary 12.
  • one or several sleeves 18 may be longer than the thickness of the material is the two modules 7, 8, 9 coupled ( Figure 28).
  • this connecting sleeve 18 is partially inserted also in one of the secondary interstices 12 that this unit unites, in particular in that downstream, if we take as a reference the direction of the flow of water.
  • this solution is adopted for sleeves 18 closer to the input section 15.
  • the length of the game protruding 19 of the sleeves 18 can decrease over the sleeve 18 is away from the entrance section 15.
  • the flow of water entering through the inlet section 15 must be equal to the flow of the water flowing vertically in the secondary interstices 12, on the other hand, the flow of water in the modules 7, 8, 9 must be almost the same to avoid overheating localized structure 2. Therefore, plus a module 7, 8, 9 is close to the entrance section 15, plus the amount of water that crosses it must be big. So the purpose of the protruding sleeves is decrease the useful cross-section through which water can to enter the corresponding secondary gap 12.
  • each face has a unique orifice 13, 14, or a plurality of orifices 13, 14. Provision of the input and output sections 15, 16 will vary in a same measurement as well as the course of the water inside the interstice.
  • the boiler 1, object of the present invention comprises at least one first conduit 20 which has a first end 21 in communication with the external environment and at least a second end 22 in communication with the interior of the upper chamber 3 for allow the entry of primary combustion air into the chamber superior 3 same.
  • the first conduit 20 extends at least partially through the structure 2, as shown below.
  • the boiler 1 also comprises at least one second conduit 23 which, in turn, has an external end 24 in communication with the external environment and at least one inner end 25 communication with the lower chamber 4 to allow the evacuation of combustion fumes from the lower chamber 4 to outside.
  • the second conduit 23 also extends at least in part through the cast iron structure 2.
  • the first conduit 20 has a plurality of second ends 22, each obtained between two modules 7, 8, 9 coupled at a height of a side wall 26 of the upper room 3.
  • the second ends 22 are defined by a chamber of diffusion of air, located between each pair of modules 7, 8, 9 coupled.
  • This broadcasting chamber 27 is notably delimited by ribs 28 in relief, made specularly on each module 7, 8, 9 which guarantee the tight connection of the different modules 7, 8, 9.
  • these ribs 28 present, on their top, a groove 29 in which it is possible to apply a sealing material provided for this purpose (not shown).
  • each chamber of diffusion 27 is mainly located on the sides of the area where is practiced the opening of communication 5, but presents a branching upwards U-shaped upside down which defines one of second ends 22 of the first conduit 20.
  • the second ends 22 of the first conduit 20 direct the incoming air into the upper chamber 3 tangentially corresponding vertical walls 26.
  • Diffusion chambers 27 obtained on both sides 10, 11 of each intermediate module 9 are then connected to one another by a opening channel 31 which extends from the front face 10 to the rear face 11 perpendicular to the vertical plane of development of the corresponding module 9.
  • Each opening channel 31 constitutes a part of the first conduit 20.
  • the front module 7 also has two open channels 31 which connect the diffusion chamber 27, obtained between the same front module 7 and the intermediate module 9 to which it is coupled with the outer part of the structure 2.
  • the module rear 8 does not present through channels, but, between it and the intermediate module to which it is coupled, a chamber of broadcast 27 may be provided.
  • gateways obtained in the front module 7, are connected by means primary air supply (which may consist of a simple air intake or fan) ( Figure 1).
  • the realization of through channels can be provided on the rear module 8 and not on the front module 7, or both.
  • the means may also be associated with the module channels back 8.
  • the division between the upper chamber 3 and the lower chamber 4 is obtained by means of a horizontal wall 33 which on one side delimits the communication opening 5, the other defines a housing 34 for accommodate in the superior room 3 a basic element 35, of preferably made of cast iron or a refractory material, which defines a bearing surface 36 for the fuel (FIGS. 29-32).
  • This basic element 35 may also delimit an opening of communication 5 smaller than that defined by the horizontal wall 33, as the figures 30 to 32 illustrate.
  • the base element 35 preferably fills the burner function, as described in detail below.
  • This basic element 35 can consist of either a single piece made expressly for a boiler 1 of a certain size (examples of Figures 1 and 29-32), or a series of elements modular, each associated with the corresponding module of structure 2 cast iron (solution not shown).
  • the boiler 1 also comprises a third duct 37 with an inlet mouth 38 connected to the external environment, and a plurality of outlet mouths 39 placed at the height of the opening 5, for the passage of secondary combustion air in the communication opening 5 same.
  • the third conduit 37 extends partly through the module 7, partly in the base element 35.
  • this second part of the third duct 37 is completely defined by the base element 35, while that in the case of figure 29, it is partly delimited by the element of base 35 and partly by structure 2.
  • the third duct 37 has a decreasing section along the followed by the secondary air to improve its diffusion.
  • Outlets 39 were also practiced in the element of base 35 and are turned towards the communication opening 5.
  • the element of base 35 comprises two flat plates 51, 52 of cast iron, separated one on the other and between which extends a sleeve opening 53 which defines the communication opening 5.
  • the two flat plates (lower 51 and upper 52) have been fundamentally realized as a counter-profile of housing 34.
  • the lower flat plate 51 also has a bevelled lateral portion 56 at a height of the portion of the third duct 37 that extends through the front module 7.
  • the third conduit 37 has a plurality outlet mouths 39 obtained at the height of the opening sleeve.
  • the front module then has two first openings 40 for access from the outside respectively to the upper room 3 and the lower chamber 4, each of which is associated with a door opening (not illustrated), advantageously covered, at least in part of a refractory material.
  • the rear module 8 has a second opening 41 connected on one side to a smoke chamber (not illustrated because of type known) connected to the back to the boiler 1 same, from the other to the room 3.
  • this second opening may be or less opening, through an order.
  • the rear module 8 has on its own face rear 11, a coupling housing 42 ( Figures 19 and 26).
  • the rear face 11 of the rear module 8 can be equipped with a plurality fins of heat exchange 32.
  • the boiler can also be equipped with means to avoid smoke outlet from the upper chamber 3 at the time of opening of the corresponding opening door.
  • a shield 43 (FIG. 1), which, in the form of boiler produced and illustrated, is constituted of a half-cylinder in a suitable material (steel sheet, refractory, cast iron, etc.) which has the dual function of protecting the bottom 44 of the lower chamber 4 against the flames of burning and hold the ashes that can thus slowly be consumed altogether.
  • the shield 43 can also present inside a gap for the water to be heated.
  • the shield 43 is held at a distance from the bottom 44 of the lower chamber 4 through fins 45 secured to the bottom 44 same, which define, with the shield 43 itself, a plurality of 46 parallel runs that extend longitudinally in the boiler 1, and which constitute a part of the second conduit 23.
  • the shield 43 is in contact with the front face 10 of the rear module 8, but it is at a distance from the back side 11 of the front module 7.
  • the tightness of the two coupled modules is guaranteed by two ribs in relief 28 corresponding, obtained one on each module 7, 8, 9, each having a groove 29 for receiving the sealing material.
  • connection of the different elements that constitute the structure 2 of cast iron is achieved either by the adhesive action of the sealing material or by fitting of the coupling sleeves 18 in the openings 13, 14 of the different modules 7, 8, 9, either through external threaded bars (not shown) mounted between flanges provided for this purpose 48, obtained on the front module 7 and on the rear module 8.
  • the boiler 1, object of the present invention operates forced draft through a fan (not shown) that can be connected either back to the first and third ducts 37, or aspiration to the second conduit 23.
  • the present invention achieves important advantages.
  • the flame inversion boiler object of the present invention, has a longer life than boilers today known thanks to its cast iron construction.
  • the boiler object of the present invention, presents a better price / duration compared to known boilers today.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Steam Boilers And Waste-Gas Boilers (AREA)
  • Tires In General (AREA)
  • Feeding And Controlling Fuel (AREA)
  • Paper (AREA)
EP04447047A 2004-02-19 2004-02-19 Heizkessel mit Flammeumkehrung Expired - Lifetime EP1566591B8 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP04447047A EP1566591B8 (de) 2004-02-19 2004-02-19 Heizkessel mit Flammeumkehrung
AT04447047T ATE408788T1 (de) 2004-02-19 2004-02-19 Heizkessel mit flammeumkehrung
DE602004016619T DE602004016619D1 (de) 2004-02-19 2004-02-19 Heizkessel mit Flammeumkehrung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP04447047A EP1566591B8 (de) 2004-02-19 2004-02-19 Heizkessel mit Flammeumkehrung

Publications (3)

Publication Number Publication Date
EP1566591A1 true EP1566591A1 (de) 2005-08-24
EP1566591B1 EP1566591B1 (de) 2008-09-17
EP1566591B8 EP1566591B8 (de) 2008-11-26

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ID=34707431

Family Applications (1)

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EP04447047A Expired - Lifetime EP1566591B8 (de) 2004-02-19 2004-02-19 Heizkessel mit Flammeumkehrung

Country Status (3)

Country Link
EP (1) EP1566591B8 (de)
AT (1) ATE408788T1 (de)
DE (1) DE602004016619D1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1983258A3 (de) * 2007-03-13 2010-03-31 Central Boiler Inc. Mit Holz betriebener Kessel
CN116398874A (zh) * 2023-04-13 2023-07-07 郴州自然人新能源高科技有限公司 生物质燃烧锅炉

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE98800C (de) *
DE445375C (de) * 1927-07-14 Albert Brahm Verbindungsnippel fuer gusseiserne Gliederkessel
DE699444C (de) * 1937-04-22 1940-11-29 Karl Gollnick Gliederkessel fuer Verfeuerung von besonders teerbildenden Brennstoffen, wie Langscheitholz u. dgl.
FR1237160A (fr) * 1959-06-01 1960-07-29 Gen Thermique Chaudière à éléments sectionnels
US4516534A (en) * 1984-03-16 1985-05-14 Unical S.P.A. Steel construction solid-fuel firing boiler for civil heating applications
EP0240445A1 (de) * 1986-04-02 1987-10-07 De Dietrich Thermique Gusseiserner Gliederheizkessel für feste Brennstoffe mit einem feuerfesten Nachverbrennungskanal
EP0320924A2 (de) * 1987-12-16 1989-06-21 Norbert Harlander Heizkessel mit einem Brenner für feste Brennstoffe

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE98800C (de) *
DE445375C (de) * 1927-07-14 Albert Brahm Verbindungsnippel fuer gusseiserne Gliederkessel
DE699444C (de) * 1937-04-22 1940-11-29 Karl Gollnick Gliederkessel fuer Verfeuerung von besonders teerbildenden Brennstoffen, wie Langscheitholz u. dgl.
FR1237160A (fr) * 1959-06-01 1960-07-29 Gen Thermique Chaudière à éléments sectionnels
US4516534A (en) * 1984-03-16 1985-05-14 Unical S.P.A. Steel construction solid-fuel firing boiler for civil heating applications
EP0240445A1 (de) * 1986-04-02 1987-10-07 De Dietrich Thermique Gusseiserner Gliederheizkessel für feste Brennstoffe mit einem feuerfesten Nachverbrennungskanal
EP0320924A2 (de) * 1987-12-16 1989-06-21 Norbert Harlander Heizkessel mit einem Brenner für feste Brennstoffe

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1983258A3 (de) * 2007-03-13 2010-03-31 Central Boiler Inc. Mit Holz betriebener Kessel
CN116398874A (zh) * 2023-04-13 2023-07-07 郴州自然人新能源高科技有限公司 生物质燃烧锅炉
CN116398874B (zh) * 2023-04-13 2024-03-01 郴州自然人新能源高科技有限公司 生物质燃烧锅炉

Also Published As

Publication number Publication date
EP1566591B1 (de) 2008-09-17
EP1566591B8 (de) 2008-11-26
DE602004016619D1 (de) 2008-10-30
ATE408788T1 (de) 2008-10-15

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