WO2012066441A2 - Appareil de chauffage - Google Patents

Appareil de chauffage Download PDF

Info

Publication number
WO2012066441A2
WO2012066441A2 PCT/IB2011/054800 IB2011054800W WO2012066441A2 WO 2012066441 A2 WO2012066441 A2 WO 2012066441A2 IB 2011054800 W IB2011054800 W IB 2011054800W WO 2012066441 A2 WO2012066441 A2 WO 2012066441A2
Authority
WO
WIPO (PCT)
Prior art keywords
fumes
cyclone separator
combustion chamber
section
combustion
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.)
Ceased
Application number
PCT/IB2011/054800
Other languages
English (en)
Other versions
WO2012066441A3 (fr
Inventor
Michele Bordignon
Denis De Marchi
Fabio De Zen
Enrico Pirollo
Giorgio Pirolo
Riccardo Repetti
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.)
Gruppo Piazzetta SpA
Original Assignee
Gruppo Piazzetta SpA
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 Gruppo Piazzetta SpA filed Critical Gruppo Piazzetta SpA
Priority to ES11797121.8T priority Critical patent/ES2542635T3/es
Priority to EP20110797121 priority patent/EP2641020B1/fr
Publication of WO2012066441A2 publication Critical patent/WO2012066441A2/fr
Publication of WO2012066441A3 publication Critical patent/WO2012066441A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B80/00—Combustion apparatus characterised by means creating a distinct flow path for flue gases or for non-combusted gases given off by the fuel
    • F23B80/04—Combustion apparatus characterised by means creating a distinct flow path for flue gases or for non-combusted gases given off by the fuel by means for guiding the flow of flue gases, e.g. baffles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
    • F23J15/022—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
    • F23J15/027—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow using cyclone separators

Definitions

  • the present invention concerns a heating apparatus.
  • the present invention concerns a heating apparatus such as a stove, a fireplace or the like.
  • Apparatuses such as stoves, fireplaces and the like, for heating environments fed with solid fuels such as wood, pellets, wooden chips and the like, are known and widespread.
  • the technical field of the present invention is thus that of improving the state of the art, by devising a heating apparatus which makes it possible to abate or considerably minimise the emission of particulate, present in the combustion fumes, into the atmosphere.
  • one purpose of the present invention is to make a heating apparatus with limited emission of particulate which is structurally and functionally simple.
  • Yet another purpose of the present invention is that of devising a heating apparatus with limited emission of particulate which can be made at low costs and with means known in the field.
  • a further purpose of the present invention is that of making a heating apparatus with limited emission of particulate which is distinguished by technical characteristics of use and by installation bulks which are comparable with those of know types of apparatuses.
  • the heating apparatus comprises a fume outlet path from the combustion chamber, along which there are forced expulsion means, and which leads to a cyclone separator. While passing said path the fumes are progressively cooled down, and also the coarsest part of the particulate transported by the fumes themselves, is held.
  • the finer particles of the particulate are deposited, so that the residual concentration ' in the fumes, which leave the apparatus and are directed towards the fumes exhaust, is minimised.
  • the path of the fumes in outlet and the cyclone separator are both completely integrated inside the support structure, so as to minimise the bulk and to eliminate any cost or any additional installation and/or maintenance activity.
  • the forced expulsion means of the fumes are foreseen near to the inlet of the cyclone separator, so as to increase the inlet speed of the fumes into the separator itself and so as to increase the efficiency of the separator.
  • some sections of the fume outlet path are arranged at the sides of the support structure of the apparatus, so as to improve the heat exchange with the exchange fluid, be it liquid or aeriform.
  • figure 1 is a schematic and sectioned front view of an apparatus according to the present invention
  • figure 2 is a schematic and sectioned side view of the apparatus of figure 1
  • figure 3 is a schematic and sectioned plan view of the apparatus of figures 1, 2
  • figure 4 is a schematic and sectioned front view of another embodiment of the apparatus according to the present invention
  • figure 5 is a schematic and sectioned side view of the apparatus of figure 4
  • figure 6 is a schematic and sectioned plan view of the apparatus of figures 4, 5
  • figure 7 is a schematic and sectioned front view of another embodiment of the apparatus according to the present invention
  • figure 8 is a schematic and sectioned side view of the apparatus of figure 7
  • figure 9 is a schematic and sectioned plan view of the apparatus of figures 7, 8
  • figure 10 is a schematic and sectioned front view of
  • a heating apparatus according to the present invention is wholly indicated with reference numeral 1.
  • the heating apparatus according to the invention can consist, for example, of a stove, of a. fireplace, or of any other similar apparatus that is fed with fuel such as wood, pellets and the like, without any limitation as far as dimensions, uses, thermal power delivered and other possible characteristics are concerned.
  • the heating apparatus comprises a combustion chamber 2.
  • the apparatus also comprises forced expulsion means of the fumes from the combustion chamber 2, wholly indicated with reference numeral 3.
  • the apparatus 1 moreover comprises a fume outlet path from the combustion chamber 2, wholly indicated with reference numeral 4.
  • the apparatus 1 also comprises a cyclone separator 5 of the combustion fumes.
  • the cyclone separator 5 is suitable for holding inside it the finer particles of the particulate transported by the combustion fumes, so as to abate the emission in the atmosphere in a substantial manner.
  • the cyclone separator 5 is positioned at the end of the fume outlet path 4 of the fumes coming from the combustion chamber 2, and communicates with the fumes exhaust 6 of the apparatus 1 through a further section of duct T, which can have a variable length.
  • the heating apparatus 1 comprises a support structure, wholly indicated with reference numeral 7.
  • the support structure 7 has specific characteristics which can vary in relation to the application of the heating apparatus .
  • the materials used, the dimensions, the installation modalities, and yet more can be varied.
  • the materials used for making the support structure 7, its 1 054800 dimensions, etc. are essentially known in the field, and are not therefore object of the present invention and do not require further detailed description.
  • the combustion chamber 2 of the heating apparatus 1 is of the type per se known in the field.
  • the combustion chamber 2 comprises a conventional brazier 8 on which a solid fuel such as wood, pellets, wooden chips or the like is loaded, and from which the ashes fall.
  • a solid fuel such as wood, pellets, wooden chips or the like
  • the combustion chamber 2 is provided at the top with a fumes deflector 9, that is suitable for holding a first part of particulate and ashes.
  • a protection 10 for example made of glass, of the type known in the field, is also foreseen.
  • the cyclone separator 5 is . completely integrated in the support structure 7, and for example, it can be contained inside it.
  • fume outlet path 4 from the combustion chamber 2 is completely integrated in the support structure 7.
  • the path 4 comprises at least one first descending section 11 communicating with the combustion chamber 2.
  • the path 4. comprises two first descending sections 11 communicating with the combustion chamber 2.
  • the first two descending sections 11 communicate with the combustion chamber 2 through two respective first openings 12.
  • the path 4 moreover comprises a second ascending section 13.
  • the second ascending section 13 is placed in communication with the cyclone separator 5, through a second opening 14.
  • the aforementioned first two descending sections 11 are arranged, inside the support structure 7, laterally and on opposite sides with respect to the cyclone separator 5.
  • the second ascending section 13 is positioned between the first descending sections 11, directly adjacent to the outer wall of the cyclone separator 5.
  • the forced expulsion means of the fumes comprise a fan.
  • the fan 3 is of the type essentially known in the field.
  • the fan 3 is positioned between the first descending sections 11 and the second ascending section 13.
  • the fan 3 is positioned at the base 15 of the support structure 7.
  • the impeller 17 of the fan 3 is housed inside the lower chamber 16 .
  • the lower chamber 16 comprises a first port 18, which communicates with a horizontal section 19 which joins the first two descending sections 11 of the path 4.
  • the lower chamber 16 moreover comprises a second port 20, which communicates with an upper chamber 21.
  • the upper chamber 21 is, also, placed directly in communication with the second ascending section 13 of the path 4.
  • an inspection and cleaning opening can be foreseen, possibly equipped with a collection tank, that is not represented in the figures, for the deposited particulate.
  • the apparatus according to the invention also comprises a main collection tank 22.
  • a main collection tank 22 Advantageously both the combustion ashes, which fall from the brazier 8, and the particulate, which is deposited inside the cyclone separator 5 , are discharged into the main tank 22.
  • the main tank 22 can be periodically removed so as to be emptied out and cleaned.
  • the heating apparatus 1 comprises a safety valve 23 of the combustion chamber 2.
  • the safety valve 23 is positioned at the top of the combustion chamber 2, substantially near to the fumes exhaust outlet 6.
  • the selective opening of the safety valve 23 makes it possible to exclude, from the . escape route of the combustion fumes, the path 4: the fumes coming from the chamber 2, therefore, flow directly towards the fumes exhaust outlet 6.
  • the opening of the safety valve 23 can be manual or automatic, in the case in which the heating apparatus 1 is provided with an electronic unit for controlling and managing its operation, of the known type.
  • the opening of the safety valve 23 can occur in particular situations during the normal operation of the apparatus, or it can occur in the case in which there is failure of the expulsion means 3 of the fumes, or again in the case in which there is a lack of electric energy.
  • the cyclone separator 5 of the per se known type in its general and size characteristics, comprises an outlet tube 24 equipped with at least an inner deflector 25, suitable for interrupting the swirling motion of the gases so as to limit the drawing of the dust already deposited at the bottom of the separator 5 itself, as illustrated in figures 15 and 16.
  • the inner deflector 25 of the outlet tube 24 has a substantially rectangular shape, substantially having the same length as the tube 24 itself.
  • the cyclone separator 5 also comprises a lower closure valve 26.
  • the lower closure valve 26, from which an extension projects allowing the particulate to be discharged, can be actuated manually, or automatically in the case in which the heating apparatus 1 is provided with an electronic unit for controlling and managing its operation, of the type per se known.
  • the operation of the heating apparatus according to the invention is as follows.
  • the fumes produced in the combustion chamber 2 flow through the first openings 12, and thus travel along the first descending sections 11. From these, the fumes pass through the horizontal section 19 and the first port 18, and flow through the lower chamber 16, in which the impeller 17 is housed.
  • the various load losses associated to each change of direction inside the path 4 make it possible to separate, from the fumes, the heaviest parts of the particulate transported by the fumes themselves.
  • a considerable amount of particulate is deposited, which can be removed through a special inspection opening equipped with a possible collection tank.
  • the finer particles of the particulate transported by the fumes are deposited. These particles deposit at the bottom, and can be discharged into the main tank 22 through the lower closure valve 26.
  • the invention thus conceived, makes it possible to obtain important . technical advantages.
  • a substantial part of the particulate is subtracted, consisting of the coarsest particles.
  • the remaining part i.e. the finer particles, are advantageously deposited inside the cyclone separator 5, according to modalities known for this type of device so that at the outlet from the separator the fumes contain a minimum, if not even negligible, concentration of particulate, also of the finest type.
  • the heating apparatus has a compact structure, having a limited bulk, and does not require special installation activity to make the fumes abatement efficient. Indeed, both the path 4 and the cyclone separator 5 are efficiently and completely integrated inside the support structure 7.
  • the apparatus has a limited cost, it is constructively and operationally simple and it can be made with technologies and means that are known in the field.
  • the energy consumption and the operation costs can be compared to those of known apparatuses without fume abatement means.
  • FIG. 1 Another embodiment of the heating apparatus according to the present invention is illustrated in figures 4, 5, 6.
  • the fume outlet path 4 comprises a single first descending section 11 and a single second ascending section 13. More in detail, as illustrated in particular in figure 6, both the first descending section 11 and the second ascending section 13 are positioned at the sides of the support structure 7.
  • heat exchange fins 27 are also foreseen at both the first section 11 and at the second section 13.
  • the first descending section 11 flows into the upper chamber 21 through a first side opening 28.
  • the upper chamber 21 is separated in two parts by a central divider 29, as illustrated in figure 4.
  • the upper chamber 21 is placed in communication with "the lower chamber 16, where the impeller 17 is housed, through the first port 18 and the second port 20.
  • the upper chamber . 21 also communicates with the second ascending section 13 through a second side opening 30.
  • the second ascending section 13 finally, communicates with the cyclone separator 5 through an upper section 31.
  • the fumes from the combustion chamber 2 flow into the first descending section 11 through the first opening 12.
  • the fumes go down towards the first side opening 28, and penetrate inside the upper chamber 21.
  • the fumes flow into the lower chamber 16 through the first port 18; through the second port 20, then, the fumes pushed by the fan 3 move on again towards the upper chamber 21 and then, through the second side opening 30, towards the second ascending section 13. Once they have reached the top of the apparatus 1, the fumes finally flow through the upper section 31 and then enter into the second opening 14 which feeds to the cyclone separator 5. Inside the latter the phenomena already described for the previous embodiment occur.
  • FIG. 7 Another embodiment of the heating apparatus according to the present invention is illustrated in figures 7, 8, 9.
  • the forced expulsion means of the fumes 3 comprise a fan positioned at the top of the second ascending section 13, and in particular at the second fume inlet opening 14 in the cyclone separator 5. Also the fume outlet path 4 is, conseguently modified.
  • the path comprises a first descending section 11, a horizontal section 19, and a second ascending section 13 reciprocally communicating and positioned behind with respect to the combustion chamber 2; there is also an upper section 31 which leads towards the cyclone separator 5.
  • dividing wall 32 suitable for holding part of the ashes and of the particulate present inside the combustion fumes.
  • the dividing wall 32 is foreseen between the first descending section 11 and the second ascending 0 section 13, i.e. along the horizontal section 19.
  • the fumes of the combustion chamber 2 pass through the first opening 12, flow along the first descending section 11, and from here the move on directly along the horizontal section 19 and then along the second ascending section 13, progressively cooling down.
  • the fumes then pass through the fan 3 and move on through the upper section 31 towards the cyclone separator 5, in which the phenomena already described occur.
  • the fumes thanks to the positioning of the fan 3, are introduced inside the cyclone separator 5 with a speed that is greater than that which occurs in the solutions with the fan 3 placed at the bottom: thanks to this, there is a considerable increase in the efficiency of the cyclone separator. 5.
  • FIG. 10 Another embodiment of the heating apparatus according to the present invention is illustrated in figures 10, 11, 12.
  • the same reference numerals as the previous embodiment have been used to distinguish same parts or components.
  • This embodiment is similar to that of figures 4, 5, 6, with the difference that the forced expulsion means 3 of the fumes are positioned at the top of the support structure 7 of the apparatus 1.
  • the fume outlet path 4 thus comprises a single first descending section 11 and a single second ascending section 13.
  • Both the first descending section 11 and the second ascending section 13 are positioned at the sides of the support structure 7.
  • Heat exchange fins 27 are also foreseen at both the first section 11 and second section 13.
  • the first descending section 11 flows out into; the upper chamber 21 through a first side opening 28.
  • the upper chamber 21 is equipped with a pair of dividing walls 32 suitable for holding a part of the particulates transported by the fumes.
  • the upper chamber 21 moreover communicates with the second ascending section 13 through a second side opening 30.
  • the second ascending section 13 communicates with the upper section 31, along which the fan 3 is inserted.
  • the upper section 31 finally leads to the cyclone separator 5.
  • the fumes from the combustion chamber 2 flow into the first descending section 11 through the first opening 12.
  • the fumes go down towards the first side opening 28, and penetrate inside the upper chamber 21.
  • Part of the particulate transported, by the fumes is held by the dividing walls 32.
  • the fumes finally flow through the upper section 31 and, by passing through the fan 3, they then enter into the second opening 14 which feeds to the cyclone separator 5. Inside the latter the phenomena already described for the previous embodiment occur.
  • the heat exchange with the exchange fluid is substantially increased, since the first descending section 11 and the second ascending section 13 have a greater exchange surface with the vector fluid, for example water or air.
  • FIG. 13 illustrates a schematic detail of another embodiment of the heating apparatus according to the invention .
  • the apparatus 1 comprises an . additional collection tank 33, in which the particulate deposited inside the cyclone separator 5 is discharged..
  • Such an additional tank 33 can advantageously be removed and cleaned independently from the main tank 22, which collects the ashes produced in the combustion chamber 2.
  • Figure 14 illustrates a schematic detail . of another embodiment of the heating apparatus according to the invention .
  • the dividing walls 32 suitable for holding the particulate have a different arrangement with respect to the previous embodiments; such dividing walls 32 can also be made orientable or adjustable in relation to the actual through port which is desired to be obtained.
  • Figures 17, 18 illustrate other embodiments of the apparatus, with particular reference to the outlet tube 24 of the fumes from the cyclone separator 5.
  • the inner deflector 25 of the outlet tube 24 has a rectangular shape with a length that is shorter than that of the outlet tube 24 itself.
  • the inner deflector 25 of the outlet tube 24 has a curvilinear profile, substantially tapered downwards.
  • the cyclone separator 5 can be provided with a plurality of parallel outlet tubes 24, each equipped with a respective inner deflector 25.
  • cyclone separator 5 and/or the fume path 4 can be integrated in the apparatus 1 positioned outside the support structure 7.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Thermal Sciences (AREA)
  • Cyclones (AREA)
  • Glass Compositions (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Incineration Of Waste (AREA)

Abstract

La présente invention concerne un appareil de chauffage, notamment un poêle, une cheminée ou analogue, alimenté par des combustibles comme du bois, des granulés et similaires, qui comprend une chambre de combustion (2), un moyen d'expulsion forcée (3) des fumées de combustion de la chambre de combustion (2), un parcours de sortie des fumées (4) de la chambre de combustion (2) le long duquel est placé le moyen d'expulsion forcée (3) et au moins un séparateur hydrocyclone (5) des fumées de combustion, placé à l'extrémité du parcours (4) et qui communique avec l'échappement des fumées (6) par une section du conduit (T) située plus loin.
PCT/IB2011/054800 2010-11-15 2011-10-28 Appareil de chauffage Ceased WO2012066441A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
ES11797121.8T ES2542635T3 (es) 2010-11-15 2011-10-28 Aparato de calefacción
EP20110797121 EP2641020B1 (fr) 2010-11-15 2011-10-28 Appareil de chauffage

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITVR2010A000212 2010-11-15
ITVR2010A000212A IT1403485B1 (it) 2010-11-15 2010-11-15 Apparecchiatura di riscaldamento

Publications (2)

Publication Number Publication Date
WO2012066441A2 true WO2012066441A2 (fr) 2012-05-24
WO2012066441A3 WO2012066441A3 (fr) 2012-07-12

Family

ID=43743207

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2011/054800 Ceased WO2012066441A2 (fr) 2010-11-15 2011-10-28 Appareil de chauffage

Country Status (4)

Country Link
EP (2) EP2641020B1 (fr)
ES (1) ES2542635T3 (fr)
IT (1) IT1403485B1 (fr)
WO (1) WO2012066441A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITVR20120089A1 (it) * 2012-05-11 2013-11-12 Gruppo Piazzetta Spa Apparecchiatura di riscaldamento
ES2597234A1 (es) * 2015-07-14 2017-01-17 José María GARCÍA GÓMEZ Sistema de generación de energía térmica

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1051774A (fr) *
GB925816A (en) * 1959-06-03 1963-05-08 Svenska Jarnvagsverkst Erna Ab Heating boiler preferably for central heating provided with convection part and dust separator
FR1380352A (fr) * 1964-01-28 1964-11-27 Mediterranea Compagnia Ind Com épurateur pour les conduits de fumées
JPS5767718A (en) * 1980-10-16 1982-04-24 Sagami Plant Service:Kk Method of combustion of combustible waste and its apparatus
AU563481B2 (en) * 1983-09-26 1987-07-09 Park, T. Combustion chamber for boilers or furnaces
DE3402787A1 (de) * 1984-01-27 1986-01-02 Wilhelm & Sander GmbH, 3418 Uslar Heizkessel fuer manuelle und/oder automatische beschickung von festen brennstoffen sowie regeleinrichtung zur regelung der heizleistung des heizkessels
DE9003037U1 (de) * 1990-03-13 1990-05-17 Ruhrkohle Ag, 4300 Essen Heizkessel mit Rauchgasentstauber
DE202008012237U1 (de) * 2008-09-16 2009-01-02 Buss, Alexander Verbesserter Kaminofen
AT11433U1 (de) * 2009-06-10 2010-10-15 Guntamatic Heiztechnik Gmbh Heizkessel für stückelige brennstoffe, insbesondere holzpellets

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITVR20120089A1 (it) * 2012-05-11 2013-11-12 Gruppo Piazzetta Spa Apparecchiatura di riscaldamento
ES2597234A1 (es) * 2015-07-14 2017-01-17 José María GARCÍA GÓMEZ Sistema de generación de energía térmica

Also Published As

Publication number Publication date
EP2949993A1 (fr) 2015-12-02
WO2012066441A3 (fr) 2012-07-12
IT1403485B1 (it) 2013-10-17
EP2641020A2 (fr) 2013-09-25
EP2641020B1 (fr) 2015-05-20
ITVR20100212A1 (it) 2012-05-16
ES2542635T3 (es) 2015-08-07

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