WO2009063528A2 - Maintenance drawer for the combustion chamber and smoke aspiration fan of the flue of a bio-mass powered thermal boiler - Google Patents

Maintenance drawer for the combustion chamber and smoke aspiration fan of the flue of a bio-mass powered thermal boiler Download PDF

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Publication number
WO2009063528A2
WO2009063528A2 PCT/IT2008/000714 IT2008000714W WO2009063528A2 WO 2009063528 A2 WO2009063528 A2 WO 2009063528A2 IT 2008000714 W IT2008000714 W IT 2008000714W WO 2009063528 A2 WO2009063528 A2 WO 2009063528A2
Authority
WO
WIPO (PCT)
Prior art keywords
drawer
bio
flue
smoke
aspiration fan
Prior art date
Application number
PCT/IT2008/000714
Other languages
French (fr)
Other versions
WO2009063528A3 (en
Inventor
Antonio Ungaro
Original Assignee
Ungaro Srl
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 Ungaro Srl filed Critical Ungaro Srl
Priority to CA2705726A priority Critical patent/CA2705726A1/en
Priority to US12/743,231 priority patent/US20100269739A1/en
Priority to EP08849919.9A priority patent/EP2227657B1/en
Publication of WO2009063528A2 publication Critical patent/WO2009063528A2/en
Publication of WO2009063528A3 publication Critical patent/WO2009063528A3/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24B—DOMESTIC STOVES OR RANGES FOR SOLID FUELS; IMPLEMENTS FOR USE IN CONNECTION WITH STOVES OR RANGES
    • F24B13/00—Details solely applicable to stoves or ranges burning solid fuels 
    • F24B13/006—Arrangements for cleaning, e.g. soot removal; Ash removal
    • F24B13/008—Ash containers
    • 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
    • F23B50/12—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 being fed to the combustion zone by free fall or by sliding along inclined surfaces, e.g. from a conveyor terminating above the fuel bed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J3/00—Removing solid residues from passages or chambers beyond the fire, e.g. from flues by soot blowers
    • F23J3/04—Traps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J3/00—Removing solid residues from passages or chambers beyond the fire, e.g. from flues by soot blowers
    • F23J3/06—Systems for accumulating residues from different parts of furnace plant

Definitions

  • the present invention regards the creation of a maintenance drawer for the combustion chamber and smoke aspiration fan of the flue of a bio-mass powered thermal boiler.
  • Biomass thermal boilers need constant maintenance in order to maintain a high level of efficiency.
  • Bio-mass powered thermal boilers are normally fitted with a drawer for the ashes placed under the furnace, access to which is from the front, and by a drawer which collects the dust from the smoke, access to which is from the side.
  • Patent application WO-A-2006109346 describes a thermal boiler with a drawer below the smoke aspiration fan to collect the dust from the smoke.
  • the cleaning of the ash drawer and of the dust drawer is carried out separately.
  • the ash drawer is fitted in an easily accessible position.
  • the dust drawer is fitted on the lateral part of the thermal boiler, which is generally difficult to access for non-specialized personnel. The user is therefore forced to ask for the intervention of the maintenance service to carry out the cleaning.
  • the drawer is not easily inspected, in order to be able to eliminate the dust deposited in it.
  • the present invention proposes the creation of a drawer which allows the user, with a single operation, to keep the cleaning and maintenance of the furnace and aspiration fan under control, freeing the furnace from the ashes produced and the smoke aspiration fan free from the dust attracted by the fan itself.
  • the main object of the present invention is to overcome the difficulties and disadvantages present in the solutions on sale at present.
  • the principal aim of the present invention is the creation of drawer for the maintenance of the combustion chamber and the smoke aspiration fan of the flue of a bio-mass thermal boiler, characterised by the fact that it is inserted into the front of the thermal boiler, that it has two compartments, that one compartment is placed under the furnace to collect the ashes, that the other compartment is placed under the aspiration fan to collect the dust contained in the smoke from combustion.
  • Figure 1 represents an axonometric view of a thermal boiler in which a drawer, object of the present invention, is placed for the maintenance of the combustion chamber and smoke aspiration fan of the flue of a bio-mass
  • Figure 2 represents a section of a thermal boiler in which a drawer, object of the present invention, is placed for the maintenance of the combustion chamber and the smoke aspiration fan of the flue of a bio-mass thermal boiler;
  • Figure 3 represents a view of the drawer, object of the present invention, for the maintenance of the combustion chamber and the smoke aspiration fan of the flue of a bio-mass thermal boiler.
  • FIG 1 which is an axonometric view of a bio-mass thermal boileri , the door 2, placed in the front part, is visible.
  • the drawer 20 is constituted of a closing and grasping element 21 , to which an element formed of two compartments is attached, the compartment for ashes 22 followed by the compartment for dust 23.
  • the drawer 20 is inserted from the front side of the thermal boiler 1 , the compartment for ashes 22 is situated under the furnace 24 and the compartment for dust 23 is positioned under the smoke aspiration fan 25.
  • the compartment 22 creates, with its side in contact with the compartment for dust 23, a perfect seal with the walls of the furnace.
  • the shape of the ash drawer 22 can be of a parallelepiped form, while the shape of the dust compartment 23 can be cylindrical in order to better adhere to the shape of the aspiration fan.
  • the present invention permits numerous advantages and to overcome difficulties that could not be overcome with the systems on sale at present.

Abstract

Maintenance drawer for the combustion chamber and smoke aspiration fan of the flue of a bio-mass powered thermal boiler, characterised by the fact that it is inserted into the front part of the thermal boiler, that it has two compartments, that one compartment is situated under the furnace to collect the ashes, that the other compartment is situated under the aspiration fan to collect the dust contained in the smoke from combustion.

Description

Maintenance drawer for the combustion chamber and smoke aspiration fan of the flue of a bio-mass powered thermal boiler Technical field of the invention
The present invention regards the creation of a maintenance drawer for the combustion chamber and smoke aspiration fan of the flue of a bio-mass powered thermal boiler.
State of the Art
Biomass thermal boilers need constant maintenance in order to maintain a high level of efficiency.
During the combustion of the bio-masses ashes, creosote and dust are produced. The ashes, dust and the creosote must be continually gathered and removed in order to avoid the possibility of polluting the bio-mass powered thermal boiler, and thus decreasing their efficiency.
Bio-mass powered thermal boilers are normally fitted with a drawer for the ashes placed under the furnace, access to which is from the front, and by a drawer which collects the dust from the smoke, access to which is from the side.
Patent application WO-A-2006109346 describes a thermal boiler with a drawer below the smoke aspiration fan to collect the dust from the smoke.
Said solution presents a series of inconveniences.
The cleaning of the ash drawer and of the dust drawer is carried out separately. The ash drawer is fitted in an easily accessible position. The dust drawer is fitted on the lateral part of the thermal boiler, which is generally difficult to access for non-specialized personnel. The user is therefore forced to ask for the intervention of the maintenance service to carry out the cleaning.
The drawer is not easily inspected, in order to be able to eliminate the dust deposited in it.
Description of the Invention.
The present invention proposes the creation of a drawer which allows the user, with a single operation, to keep the cleaning and maintenance of the furnace and aspiration fan under control, freeing the furnace from the ashes produced and the smoke aspiration fan free from the dust attracted by the fan itself.
The main object of the present invention is to overcome the difficulties and disadvantages present in the solutions on sale at present.
The principal aim of the present invention is the creation of drawer for the maintenance of the combustion chamber and the smoke aspiration fan of the flue of a bio-mass thermal boiler, characterised by the fact that it is inserted into the front of the thermal boiler, that it has two compartments, that one compartment is placed under the furnace to collect the ashes, that the other compartment is placed under the aspiration fan to collect the dust contained in the smoke from combustion.
Another characteristic is given by the fact that the compartment for collecting the ashes is of a parallelepiped shape.
Another characteristic is given by the fact that the compartment for collecting dust is of a cylindrical shape. Other characteristics and advantages of the present invention will appear clear from the following description of a method of creating the present invention, given as a non-limiting example in the figures 1 , 2 and 3.
Brief description of the figures.
Figure 1 represents an axonometric view of a thermal boiler in which a drawer, object of the present invention, is placed for the maintenance of the combustion chamber and smoke aspiration fan of the flue of a bio-mass
Figure 2 represents a section of a thermal boiler in which a drawer, object of the present invention, is placed for the maintenance of the combustion chamber and the smoke aspiration fan of the flue of a bio-mass thermal boiler;
Figure 3 represents a view of the drawer, object of the present invention, for the maintenance of the combustion chamber and the smoke aspiration fan of the flue of a bio-mass thermal boiler.
Detailed description of an embodiment of the present invention
With reference to figure 1 , which is an axonometric view of a bio-mass thermal boileri , the door 2, placed in the front part, is visible.
In the front part, as can be seen in figure 2, behind the door 2, the drawer 20 is situated.
The drawer 20 is constituted of a closing and grasping element 21 , to which an element formed of two compartments is attached, the compartment for ashes 22 followed by the compartment for dust 23. The drawer 20 is inserted from the front side of the thermal boiler 1 , the compartment for ashes 22 is situated under the furnace 24 and the compartment for dust 23 is positioned under the smoke aspiration fan 25. The compartment 22 creates, with its side in contact with the compartment for dust 23, a perfect seal with the walls of the furnace.
In this way the ashes produced in the furnace 24 fall into the ash compartment 22 situated under the furnace 24, while the dust produced by the smoke from combustion is collected in the dust compartment 23, situated under the aspiration fan 25.
To carry out the cleaning and maintenance of the thermal boiler 1 of ashes and smoke dust it is thus necessary to pull out the drawer 20 frontally, grasping the closing and grasping element 21 , empty the refuse eventually contained both in the compartment 22 and in the compartment 23 and return the drawer 20 to its place.
The shape of the ash drawer 22 can be of a parallelepiped form, while the shape of the dust compartment 23 can be cylindrical in order to better adhere to the shape of the aspiration fan.
To always keep both the furnace 1 and the aspiration fan 25 clean it is sufficient to periodically repeat the above described cleaning and maintenance operation, without the necessity for complicated operations that necessitate complex dismantling and reassembling.
In this way both the furnace 1 and the aspiration fan 25 of the thermal boiler are kept clean and therefore the efficiency of the thermal boiler is always maintained at a high level. The invention, it should be noted, is not limited to the representations given by the figures, but may be perfected and modified by those skilled in the Art, without, however, exceeding the limits of patent.
The present invention permits numerous advantages and to overcome difficulties that could not be overcome with the systems on sale at present.

Claims

1. Maintenance drawer for the combustion chamber and smoke aspiration fan of the flue of a bio-mass powered thermal boiler, characterised by the fact that it is inserted into the front part of the thermal boiler, that it has two compartments, that one compartment is situated under the furnace to collect the ashes, that the other compartment is situated under the aspiration fan to collect the dust contained in the smoke from combustion.
2. Maintenance drawer for the combustion chamber and smoke aspiration fan of the flue of a bio-mass powered thermal boiler, according to claim 1 , characterised by the fact that the drawer for collecting the ashes is parallelepiped in shape.
3. Maintenance drawer for the combustion chamber and smoke aspiration fan of the flue of a bio-mass powered thermal boiler, according to claims 1 or 2, characterised by the fact that the drawer for collecting dust is cylindrical in shape.
PCT/IT2008/000714 2007-11-15 2008-11-17 Maintenance drawer for the combustion chamber and smoke aspiration fan of the flue of a bio-mass powered thermal boiler WO2009063528A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CA2705726A CA2705726A1 (en) 2007-11-15 2008-11-17 Maintenance drawer for the combustion chamber and smoke aspiration fan of the flue of a bio-mass powered thermal boiler
US12/743,231 US20100269739A1 (en) 2007-11-15 2008-11-17 Maintenance drawer for the combustion chamber and smoke aspiration fan of the flue of a bio-mass powered thermal boiler
EP08849919.9A EP2227657B1 (en) 2007-11-15 2008-11-17 Bio-mass powered thermal boiler with maintenance drawer for the combustion chamber and the smoke aspiration fan of the flue

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT000048A ITCS20070048A1 (en) 2007-11-15 2007-11-15 DRAWER FOR THE MAINTENANCE OF THE COMBUSTION CHAMBER AND OF THE FUME FLUE EXHAUST FAN OF A BIOMASS HEATING
ITCS2007A000048 2007-11-15

Publications (2)

Publication Number Publication Date
WO2009063528A2 true WO2009063528A2 (en) 2009-05-22
WO2009063528A3 WO2009063528A3 (en) 2009-08-20

Family

ID=40314601

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT2008/000714 WO2009063528A2 (en) 2007-11-15 2008-11-17 Maintenance drawer for the combustion chamber and smoke aspiration fan of the flue of a bio-mass powered thermal boiler

Country Status (5)

Country Link
US (1) US20100269739A1 (en)
EP (1) EP2227657B1 (en)
CA (1) CA2705726A1 (en)
IT (1) ITCS20070048A1 (en)
WO (1) WO2009063528A2 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB772187A (en) 1954-08-31 1957-04-10 Cecil Percival Anchant Improvements relating to ash pans
US3289618A (en) 1963-12-16 1966-12-06 Westinghouse Electric Corp Incinerator device

Family Cites Families (16)

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BE401702A (en) *
US168168A (en) * 1875-09-28 Improvement in ash-pans
DE349693C (en) * 1920-02-26 1922-03-08 Philipp Jakob Willig Ash pan with sliding lid lock
US4078541A (en) * 1976-02-09 1978-03-14 Roycraft Engineering Company Wood and oil burning furnace
US4320739A (en) * 1979-05-25 1982-03-23 Martin Industries, Inc. Combustion type heater
US4677965A (en) * 1986-07-28 1987-07-07 Duerichen Johann G Wood or coal burning heater
US5158025A (en) * 1991-04-11 1992-10-27 Johnson Theodore J Waste fuel combustion system
US5133266A (en) * 1991-10-17 1992-07-28 Mountain Home Development Company Pellet burning heating device
EP1022512B1 (en) * 1999-01-19 2004-07-14 Karl Stefan Riener Cooking or baking oven using pellet fuel
US6588350B1 (en) * 2002-02-05 2003-07-08 Keystoker Inc. Automatic coal stoker with increased sensible heat outflow
US20040163638A1 (en) * 2003-02-20 2004-08-26 Mr. Ron Hornick Creosote Catcher
US7318431B1 (en) * 2004-02-03 2008-01-15 Bixby Energy Systems, Inc. Biomass fuel burning stove and method
US6945180B1 (en) * 2004-06-03 2005-09-20 Vasyl Khymych Miniature garbage incinerator and method for incineration
US20080078311A1 (en) * 2006-10-03 2008-04-03 Hsiu Kuan Hsu Solid waste burner
US8020547B2 (en) * 2007-08-06 2011-09-20 Clarry Pellet Stove, Llc Pellet stove
US20090199747A1 (en) * 2008-02-08 2009-08-13 Wood-Mizer Products, Inc. Biomass burner system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB772187A (en) 1954-08-31 1957-04-10 Cecil Percival Anchant Improvements relating to ash pans
US3289618A (en) 1963-12-16 1966-12-06 Westinghouse Electric Corp Incinerator device

Also Published As

Publication number Publication date
ITCS20070048A1 (en) 2008-02-14
WO2009063528A3 (en) 2009-08-20
US20100269739A1 (en) 2010-10-28
CA2705726A1 (en) 2009-05-22
EP2227657A2 (en) 2010-09-15
EP2227657B1 (en) 2018-09-26

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