EP1983263A1 - Herd mit automatischer Abgasumkehrungssteuerung - Google Patents

Herd mit automatischer Abgasumkehrungssteuerung Download PDF

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Publication number
EP1983263A1
EP1983263A1 EP07425222A EP07425222A EP1983263A1 EP 1983263 A1 EP1983263 A1 EP 1983263A1 EP 07425222 A EP07425222 A EP 07425222A EP 07425222 A EP07425222 A EP 07425222A EP 1983263 A1 EP1983263 A1 EP 1983263A1
Authority
EP
European Patent Office
Prior art keywords
flue gas
cylinder
stove
combustion chamber
piston
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP07425222A
Other languages
English (en)
French (fr)
Inventor
Emilio Manenti
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.)
Jolly-Mec Caminetti SpA
Original Assignee
Jolly-Mec Caminetti 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 Jolly-Mec Caminetti SpA filed Critical Jolly-Mec Caminetti SpA
Priority to EP07425222A priority Critical patent/EP1983263A1/de
Publication of EP1983263A1 publication Critical patent/EP1983263A1/de
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N3/00—Regulating air supply or draught
    • F23N3/04—Regulating air supply or draught by operation of single valves or dampers by temperature sensitive elements
    • F23N3/045—Regulating air supply or draught by operation of single valves or dampers by temperature sensitive elements using electrical or electromechanical means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B1/00—Combustion apparatus using only lump fuel
    • F23B1/16—Combustion apparatus using only lump fuel the combustion apparatus being modified according to the form of grate or other fuel support
    • F23B1/28—Combustion apparatus using only lump fuel the combustion apparatus being modified according to the form of grate or other fuel support using ridge-type grate, e.g. for combustion of peat, sawdust, or pulverulent fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B1/00—Combustion apparatus using only lump fuel
    • F23B1/30—Combustion apparatus using only lump fuel characterised by the form of combustion chamber
    • F23B1/38—Combustion apparatus using only lump fuel characterised by the form of combustion chamber for combustion of peat, sawdust, or pulverulent fuel on a grate or other fuel support
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B60/00—Combustion apparatus in which the fuel burns essentially without moving
    • F23B60/02—Combustion apparatus in which the fuel burns essentially without moving with combustion air supplied through a grate
    • 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
    • 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
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
    • F23G7/10—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of field or garden waste or biomasses
    • F23G7/105—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of field or garden waste or biomasses of wood waste
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L13/00—Construction of valves or dampers for controlling air supply or draught
    • F23L13/02—Construction of valves or dampers for controlling air supply or draught pivoted about a single axis but having not other movement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2209/00—Specific waste
    • F23G2209/26—Biowaste
    • F23G2209/261—Woodwaste
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N2235/00—Valves, nozzles or pumps
    • F23N2235/02—Air or combustion gas valves or dampers
    • F23N2235/04—Air or combustion gas valves or dampers in stacks

Definitions

  • the present invention relates to a stove of the type provided with flue gas flow reversal, to increase its efficiency.
  • IT-A-1,329,597 describes a stack-equipped stove, the combustion chamber of which is provided with a gas burner.
  • the flue gas generated in the combustion chamber undergoes a path which initially rises and then descends (to provide so-called flue gas reversal), to finally rise to a connector for connection to an flue gas discharge pipe (normally a flue stack).
  • the object of the present invention is therefore to provide a stove of the flue gas reversal type which does not present the aforesaid drawback.
  • the stove of the present invention characterised by also comprising a direct flue gas connection between the combustion chamber and the connector for the flue gas discharge pipe, and means which enable said direct connection to be excluded only when the temperature attained by the flue gas leaving the combustion chamber attains a first predetermined value.
  • said means are of the type which enables the direct connection to be excluded gradually, the exclusion being completed on attaining a second predetermined flue gas temperature.
  • said means comprise: a temperature sensor to measure the temperature of the flue gas leaving the combustion chamber; a damper arranged to close the direct connection between the combustion chamber and the flue gas discharge pipe; and an actuator which enables the damper to commence closure on attaining said first predetermined flue gas temperature, to complete it on attaining said second predetermined temperature value.
  • the stove 10 comprises a combustion chamber 12 burning firewood or pellets in its lower part. Consequently hot gases are produced in the combustion chamber 12 and tend to rise upwards, as indicated by the arrows 14. From the figures it can be seen that the stove is provided with a pipe 18 for its direct connection to a connector for connection to the flue gas discharge pipe (not shown in the figures), which connector can be of horizontal axis and indicated by 22H or of vertical axis and indicated by 22V.
  • the stove 10 is also provided with means, indicated overall by 16 and shown enlarged in Figures 3 and 4 , which enable the direct connection 18 to be excluded.
  • the means 16 are an actuator 24 which in the specific illustrated example comprise: a pneumatic cylinder-piston unit 25 with the free end 26 of the piston shank emerging partially from the cylinder; means 28, 30 for moving the piston on the basis of the temperature attained by the flue gas leaving the combustion chamber 12, such that the shank 26 projects further from the cylinder as the flue gas temperature increases; and a lever 32 which, on the basis of the amount by which the shank 26 projects from the cylinder of the cylinder-piston unit 25, rotates a damper 34 from an angular position in which it is completely open to an angular position in which it completely closes the direct connection 18.
  • the means 16 for moving the piston of the cylinder-piston unit 25 comprise, in the illustrated example, a hollow metal bulb 28 (for example of copper) located in the region in which the flue gas leaves the combustion chamber 12.
  • the bulb 28 is preferably enclosed in a cup-shaped metal element 38 for its protection.
  • the bulb 28 communicates with the end of a metal tube 30 (for example also of copper), the other end of which communicates with one of the two portions into which the piston of the cylinder-piston unit 25 divides the relative cylinder.
  • the actuator 24 can be made to operate the lever 32 to initiate closing rotation of the damper 34 until it is completely closed on attaining a second predetermined flue gas temperature, with the final result that the entire flue gas flow passes through the reversal path 20.1 and 20.2.
  • the advantage is that the reversal occurs automatically, only when required, and gradually. In particular, immediately after damper ignition, when the flue gas is still at low temperature, the absence of reversal ensures a good draught, which facilitates rapid increase in the flue gas temperature.
  • the damper When this temperature attains a value at which it begins to become convenient to recover part of the flue gas thermal energy (value corresponding to said first predetermined temperature), the damper begins to rotate automatically in the closure direction, closing to a greater extent the higher the flue gas temperature, so that an increasingly large flue gas flow is deviated through the reversal path 20.1, 20.2, until its complete deviation (flow completely reversed) on attaining said second predetermined flue gas temperature value.
  • the means 16 comprise a device for regulating the piston stroke of the cylinder-piston unit 25, this allowing control of the temperature at which the closure rotation of the damper 34 commences (said first predetermined temperature).
  • this device comprises an adjustment screw 36 disposed at that end of the unit cylinder 25 opposite the end from which the shank 26 projects.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical & Material Sciences (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Solid-Fuel Combustion (AREA)
EP07425222A 2007-04-18 2007-04-18 Herd mit automatischer Abgasumkehrungssteuerung Withdrawn EP1983263A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07425222A EP1983263A1 (de) 2007-04-18 2007-04-18 Herd mit automatischer Abgasumkehrungssteuerung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07425222A EP1983263A1 (de) 2007-04-18 2007-04-18 Herd mit automatischer Abgasumkehrungssteuerung

Publications (1)

Publication Number Publication Date
EP1983263A1 true EP1983263A1 (de) 2008-10-22

Family

ID=38480446

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07425222A Withdrawn EP1983263A1 (de) 2007-04-18 2007-04-18 Herd mit automatischer Abgasumkehrungssteuerung

Country Status (1)

Country Link
EP (1) EP1983263A1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITUD20100222A1 (it) * 2010-12-01 2012-06-02 Palazzetti Lelio Spa Focolare
CN102519045A (zh) * 2011-11-14 2012-06-27 金云峰 有机废弃物处理装置及其处理方法
CN106196014A (zh) * 2016-08-19 2016-12-07 李世平 一种节能环保的反式气化燃烧炉
EP3361152A1 (de) * 2017-02-08 2018-08-15 Karl Stefan Riener Biomasseofen

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2211300A (en) 1936-05-12 1940-08-13 Spence Engineering Company Inc Damper regulator
AT393898B (de) 1988-03-09 1991-12-27 Prueller Josef Rauchgasklappe
AT395905B (de) 1988-03-09 1993-04-26 Prueller Josef Rostfeuerung, insbesondere fuer heizkessel
DE10022877A1 (de) 2000-03-08 2001-09-20 Hdg Bavaria Gmbh Heizkessel & Festbrennstoff-Heizkessel
EP1431660A1 (de) * 2002-12-17 2004-06-23 Kutzner + Weber GmbH & Co. KG Absperrvorrichtung für einen Abgasweg in einer Abgasanlage einer Feuerstätte

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2211300A (en) 1936-05-12 1940-08-13 Spence Engineering Company Inc Damper regulator
AT393898B (de) 1988-03-09 1991-12-27 Prueller Josef Rauchgasklappe
AT395905B (de) 1988-03-09 1993-04-26 Prueller Josef Rostfeuerung, insbesondere fuer heizkessel
DE10022877A1 (de) 2000-03-08 2001-09-20 Hdg Bavaria Gmbh Heizkessel & Festbrennstoff-Heizkessel
EP1431660A1 (de) * 2002-12-17 2004-06-23 Kutzner + Weber GmbH & Co. KG Absperrvorrichtung für einen Abgasweg in einer Abgasanlage einer Feuerstätte

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITUD20100222A1 (it) * 2010-12-01 2012-06-02 Palazzetti Lelio Spa Focolare
CN102519045A (zh) * 2011-11-14 2012-06-27 金云峰 有机废弃物处理装置及其处理方法
CN102519045B (zh) * 2011-11-14 2014-07-23 金云峰 有机废弃物处理装置及其处理方法
CN106196014A (zh) * 2016-08-19 2016-12-07 李世平 一种节能环保的反式气化燃烧炉
EP3361152A1 (de) * 2017-02-08 2018-08-15 Karl Stefan Riener Biomasseofen

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