EP0693545B1 - Wood gas producer - Google Patents

Wood gas producer Download PDF

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Publication number
EP0693545B1
EP0693545B1 EP95111130A EP95111130A EP0693545B1 EP 0693545 B1 EP0693545 B1 EP 0693545B1 EP 95111130 A EP95111130 A EP 95111130A EP 95111130 A EP95111130 A EP 95111130A EP 0693545 B1 EP0693545 B1 EP 0693545B1
Authority
EP
European Patent Office
Prior art keywords
gas
ring
wood
gas producer
nozzle ring
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
EP95111130A
Other languages
German (de)
French (fr)
Other versions
EP0693545A1 (en
Inventor
Manfred Viesel
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0693545A1 publication Critical patent/EP0693545A1/en
Application granted granted Critical
Publication of EP0693545B1 publication Critical patent/EP0693545B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/02—Fixed-bed gasification of lump fuel
    • C10J3/20—Apparatus; Plants
    • C10J3/22—Arrangements or dispositions of valves or flues
    • C10J3/24—Arrangements or dispositions of valves or flues to permit flow of gases or vapours other than upwardly through the fuel bed
    • C10J3/26—Arrangements or dispositions of valves or flues to permit flow of gases or vapours other than upwardly through the fuel bed downwardly
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/02—Fixed-bed gasification of lump fuel
    • C10J3/20—Apparatus; Plants
    • C10J3/34—Grates; Mechanical ash-removing devices
    • C10J3/40—Movable grates
    • C10J3/42—Rotary grates
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0913—Carbonaceous raw material
    • C10J2300/0916—Biomass
    • C10J2300/092—Wood, cellulose

Definitions

  • the invention relates to a wood gas generator according to the Generic term of claim 1.
  • Gasification focus defined in detail, the known, construction principle followed by the German company IMBERT.
  • a so-called nozzle ring is important, which in the vertical cylindrical gasification shaft installed coaxially is and constricts it.
  • wood gas generators have the disadvantage that the generated gas contains a lot of tar, which the engine and harm the environment. There are also others Contain pollutants in the gas.
  • the invention is based on the object to provide a wood gasifier that improved Afterburning enabled and at these pollutants to a large extent be avoided. This task will in the case of a wood gas generator of the type described in the introduction according to the invention by the characterizing features of Claim 1 solved.
  • a gas ring channel is then provided in the nozzle ring, in which is the gas obtained from a second combustion is subjected.
  • the nozzle ring in particular its upper beaded section lies in the hottest zone and reaches a temperature of approx. 1,000 ° C.
  • the gas is still left according to the invention flow through the ring channel to thereby at least the Burn tar parts and possibly even more Accumulate pollutants on the solid combustion residues.
  • a further development of the invention is that a Possibility is created that gas as known immediately from the gasification zone and a Switching device to provide, with which the Close the outlet opening of the gas ring channel and the immediate opening opening and vice versa. Finally, it is expedient to switch the device in this way train that both gas paths with optional operated different flow cross sections and the Gas flows can be mixed.
  • the lower part of the wood gas generator shown comprises one with insulating material surrounding container 1, the over the floor has a rotating grate 2. At a distance above this one is connected to the container wall Nozzle ring 3, which is in an upper bead-like Section 4 and one protruding freely downwards Ring jacket section 5 is divided. There is a over the nozzle ring circumferential intake air duct 6 provided by a Intake air connector 7 is fed and the air over individual Dispenses nozzles 8 into the gasification zone.
  • the nozzle ring 3 contains a gas ring channel 11 at is separated by a transverse wall 12 so that the gas ring channel has a beginning and an end.
  • the beginning is in via an inlet opening 13 with the annular space 10 in Connection and the end opens out via an outlet pipe 14 Outside.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Combustion & Propulsion (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Incineration Of Waste (AREA)
  • Solid-Fuel Combustion (AREA)

Abstract

A lower ring mantle and the gasifying chamber outer well form an annular chamber from which the gas is drawn off. Air is drawn in above the nozzle ring. The gas ring channel (11) runs through nearly 360 degrees and is located within the nozzle ring (3). The ring channel has an inlet (13) from the ring chamber (10), and its outlet (14) is connected to an outlet channel (17). <IMAGE>

Description

Die Erfindung betrifft einen Holzgaserzeuger nach dem Gattungsbegriff des Anspruchs 1. Dort ist die Ausbildung des Vergasungsherdes im einzelnen definiert, der dem bekannten, von der deutschen Firma IMBERT verbreiteten Bauprinzip folgt. Dabei ist ein sogenannter Düsenring von Bedeutung, der in dem vertikalen zylindrischen Vergasungsschacht koaxial eingebaut ist und diesen einschnürt.The invention relates to a wood gas generator according to the Generic term of claim 1. There is the training of Gasification focus defined in detail, the known, construction principle followed by the German company IMBERT. A so-called nozzle ring is important, which in the vertical cylindrical gasification shaft installed coaxially is and constricts it.

Allgemein haben Holzgaserzeuger den Nachteil, daß das erzeugte Gas viel Teer-Anteile enthält, welche dem Motor und der Umwelt schaden. Außerdem sind auch noch andere Schadstoffe in dem Gas enthalten.In general, wood gas generators have the disadvantage that the generated gas contains a lot of tar, which the engine and harm the environment. There are also others Contain pollutants in the gas.

Aus EP-A-0 119 183 und FR-A-981 252 sind bereits Holzvergaser bekannt, bei denen eine Nachverbrennung von Feerbestandteilen im Gas vorgesehen ist.From EP-A-0 119 183 and FR-A-981 252 are already known wood carburettors at which an afterburning of fire components is provided in the gas.

Der Erfindung liegt die Aufgabe zugrunde, einen Holzvergaser bereitzustellen, der eine verbesserte Nachverbrennung ermöglicht und bei dem diese Schadstoffe zu einem wesentlichen Anteil vermieden werden. Diese Aufgabe wird bei einem Holzgaserzeuger der einleitend bezeichneten Art erfindungsgemäß durch die kennzeichnenden Merkmale des Anspruchs 1 gelöst.The invention is based on the object to provide a wood gasifier that improved Afterburning enabled and at these pollutants to a large extent be avoided. This task will in the case of a wood gas generator of the type described in the introduction according to the invention by the characterizing features of Claim 1 solved.

Danach ist in dem Düsenring ein Gasringkanal vorgesehen, in welchem das gewonnene Gas einer zweiten Verbrennung unterzogen wird. Der Düsenring, und zwar insbesondere dessen oberer wulstartiger Abschnitt liegt in der heißesten Zone und erreicht eine Temperatur von ca. 1.000°C. Während das Gas normalerweise aus dem Ringraum, welcher den unteren Ringmantelabschnitt des Düsenringes umgibt, nach außen abgezogen wird, läßt man erfindungsgemäß das Gas erst noch durch den Ringkanal strömen, um hierdurch zumindest die Teeranteile zu verbrennen und womöglich noch weitere Schadstoffe an den festen Verbrennungsrückständen anzulagern.A gas ring channel is then provided in the nozzle ring, in which is the gas obtained from a second combustion is subjected. The nozzle ring, in particular its upper beaded section lies in the hottest zone and reaches a temperature of approx. 1,000 ° C. During the gas usually from the annulus, which is the lower one Ring jacket section of the nozzle ring surrounds, to the outside is withdrawn, the gas is still left according to the invention flow through the ring channel to thereby at least the Burn tar parts and possibly even more Accumulate pollutants on the solid combustion residues.

Eine Weiterbildung der Erfindung besteht darin, daß auch eine Möglichkeit geschaffen wird, daß Gas wie bekannt unmittelbar aus der Vergasungszone zu entnehmen und eine Umschalteinrichtung vorzusehen, mit der sich wahlweise die Auslaßöffnung des Gasringkanals schließen und die unmittelbare Entnahmeöffnung öffnen läßt und umgekehrt. Schließlich ist es zweckmäßig, die Umschalteinrichtung so auszubilden, daß beide Gaswege mit wahlweise unterschiedlichen Strömungsquerschnitten betrieben und die Gasströme gemischt werden können.A further development of the invention is that a Possibility is created that gas as known immediately from the gasification zone and a Switching device to provide, with which the Close the outlet opening of the gas ring channel and the immediate opening opening and vice versa. Finally, it is expedient to switch the device in this way train that both gas paths with optional operated different flow cross sections and the Gas flows can be mixed.

Ein Ausführungsbeispiel der Erfindung wird nachfolgend anhand der schematischen Zeichnung erläutert. Im einzelnen zeigt

Fig. 1
einen vertikalen Längsschnitt des unteren Teils eines Holzgaserzeugers und
Fig. 2
einen horizontalen Querschnitt II-II.
An embodiment of the invention is explained below with reference to the schematic drawing. In detail shows
Fig. 1
a vertical longitudinal section of the lower part of a wood gas generator and
Fig. 2
a horizontal cross section II-II.

Zunächst ist anzumerken, daß die einzelnen Zugangsöffnungen zum Herdraum zur Vereinfachung weggelassen sind.First of all, it should be noted that the individual access openings to the stove space are omitted for simplification.

Der gezeigte untere Teil des Holzgaserzeugers umfaßt einen mit wärmedämmendem Material umgebenden Behälter 1, der über dem Boden einen Drehrost 2 aufweist. In einem Abstand über diesem befindet sich ein mit der Behälterwandung verbundener Düsenring 3, der sich in einen oberen wulstartigen Abschnitt 4 und einen frei nach unten abstehenden Ringmantelabschnitt 5 gliedert. Über dem Düsenring ist ein umlaufender Ansaugluftkanal 6 vorgesehen, der durch einen Ansaugluftstutzen 7 gespeist wird und die Luft über einzelne Düsen 8 in die Vergasungszone abgibt.The lower part of the wood gas generator shown comprises one with insulating material surrounding container 1, the over the floor has a rotating grate 2. At a distance above this one is connected to the container wall Nozzle ring 3, which is in an upper bead-like Section 4 and one protruding freely downwards Ring jacket section 5 is divided. There is a over the nozzle ring circumferential intake air duct 6 provided by a Intake air connector 7 is fed and the air over individual Dispenses nozzles 8 into the gasification zone.

Bekannt ist es, das gewonnene Gas über einen Auslaßstutzen 9 aus dem Ringraum 10 abzuziehen, der sich zwischen dem Ringmantelabschnitt 5 des Düsenrings und der Wand des Behälters 1 befindet.It is known that the gas obtained via an outlet connection 9 deduct from the annulus 10, which is between the Ring jacket section 5 of the nozzle ring and the wall of the Container 1 is located.

Die Besonderheit der vorgeschlagenen Anordnung besteht darin, daß der Düsenring 3 einen Gasringkanal 11 enthält der an einer Stelle durch eine Querwand 12 abgetrennt ist, so daß der Gasringkanal einen Anfang und ein Ende erhält. Der Anfang steht über eine Einlaßöffnung 13 mit dem Ringraum 10 in Verbindung und das Ende mündet über ein Auslaßrohr 14 nach außen.The peculiarity of the proposed arrangement is that that the nozzle ring 3 contains a gas ring channel 11 at is separated by a transverse wall 12 so that the gas ring channel has a beginning and an end. The beginning is in via an inlet opening 13 with the annular space 10 in Connection and the end opens out via an outlet pipe 14 Outside.

Im einfachsten Fall wird auf den Auslaßstutzen 9 verzichtet und das gesamte Gas stets über den Gasringkanal 11 abgezogen, wo eine Nachverbrennung stattfindet. In Weiterbildung dessen zeigt Fig. 2, daß das Auslaßrohr 14 des Gasringkanals und der Auslaßstutzen 9 in einer Umschalteinrichtung 15 nach Art eines Hosenrohres zu einem Abzugskanal 17 zusammengeführt sind, wobei eine Drehklappe 16 entweder das Auslaßrohr 14 oder den Auslaßstutzen 9 sperrt, so daß der Gasringkanal 11 nach Bedarf eingeschaltet werden kann oder nicht. Außerdem vermag die Drehklappe 16 eine Mittelstellung einzunehmen, wodurch die beiden Gasströme nach Wunsch gemischt werden können.

1
Behälter
2
Drehrost
3
Düsenring
4
wulstartiger Abschnitt
5
Ringmantelabschnitt
6
Ansaugluftkanal
7
Ansaugluftstutzen
8
Düse
9
Auslaßstutzen
10
Ringraum
11
Gasringkanal
12
Querwand
13
Einlaßöffnung
14
Auslaßrohr
15
Umschalteinrichtung
16
Drehklappe
17
Abzugskanal
In the simplest case, the outlet connection 9 is dispensed with and the entire gas is always drawn off via the gas ring channel 11, where afterburning takes place. In a further development of this, Fig. 2 shows that the outlet pipe 14 of the gas ring channel and the outlet connector 9 are brought together in a switching device 15 in the manner of a downpipe to form an extraction channel 17, with a rotary flap 16 blocking either the outlet pipe 14 or the outlet connector 9, so that the Gas ring channel 11 can be switched on or not as required. In addition, the rotary flap 16 can assume a central position, as a result of which the two gas flows can be mixed as desired.
1
container
2nd
Rotary grate
3rd
Nozzle ring
4th
bulging section
5
Ring jacket section
6
Intake air duct
7
Intake air connector
8th
jet
9
Exhaust port
10th
Annulus
11
Gas ring channel
12th
Transverse wall
13
Inlet opening
14
Outlet pipe
15
Switching device
16
Rotary flap
17th
Culvert

Claims (3)

  1. Wood gas producer with a nozzle ring located in the gas producer lower part, which ring with its upper toroidal section narrows down the gasification chamber horizontally and on the under side comprises an annular surface section projecting freely downwards, which forms an annular chamber with the outer wall of the gasification chamber, from which the gas is withdrawn, the intake air being supplied above the nozzle ring, characterised in that a gas ring channel (11) extending virtually over 360° is formed in the nozzle ring (3) solely in its toroidal section, which at the beginning is connected by way of an inlet opening (13) to the annular chamber (10) and whereof the outlet opening (14) opens outwards into an offtake (17).
  2. Wood gas producer according to Claim 1, characterised in that a change-over device (15) is provided, by which the outlet opening (14) of the gas ring channel can be optionally closed and a direct outlet opening (9) of the annular chamber can be opened and connected to the offtake (17) and vice versa.
  3. Wood gas producer according to Claim 2, characterised in that both gas paths are operated with optionally different flow cross-sections and the gas streams can be mixed.
EP95111130A 1994-07-22 1995-07-15 Wood gas producer Expired - Lifetime EP0693545B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE9411856U DE9411856U1 (en) 1994-07-22 1994-07-22 Wood gas generator
DE9411856U 1994-07-22

Publications (2)

Publication Number Publication Date
EP0693545A1 EP0693545A1 (en) 1996-01-24
EP0693545B1 true EP0693545B1 (en) 2000-01-12

Family

ID=6911466

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95111130A Expired - Lifetime EP0693545B1 (en) 1994-07-22 1995-07-15 Wood gas producer

Country Status (3)

Country Link
EP (1) EP0693545B1 (en)
AT (1) ATE188727T1 (en)
DE (2) DE9411856U1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009042104A1 (en) * 2009-09-21 2011-04-14 Bernhard Werner Wood gas boiler has star that is arranged in range of fire bed, where star is rotated around central vertical axis and is provided with multiple wings

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI122860B (en) 2007-05-25 2012-08-15 Gasek Oy Procedure for gasification of solid fuel and co-stream gasifier
AT506919B1 (en) * 2008-01-18 2012-04-15 Walter Dipl Ing Sailer METHOD AND DEVICE FOR GASIFICATION OF SOLID FUELS
SI2281864T1 (en) 2009-08-07 2017-08-31 Walter Sailer Method and apparatus for gasifying solid fuels

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE490657C (en) * 1926-08-13 1930-01-31 Sarl Soc D Applic Du Gaz Aux M Gas generator, in particular with reverse pulling direction
FR867730A (en) * 1940-07-16 1941-11-25 Gasifier producing simultaneously or separately lean and rich gas
FR981252A (en) * 1943-03-23 1951-05-24 Improvements made to devices such as gazogenes
GB575048A (en) * 1943-06-01 1946-01-31 George Stewart Roland Hamilton Improvements relating to producer gas apparatus
EP0119183A3 (en) * 1983-03-09 1985-05-15 Willy Evrard Gas producers

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009042104A1 (en) * 2009-09-21 2011-04-14 Bernhard Werner Wood gas boiler has star that is arranged in range of fire bed, where star is rotated around central vertical axis and is provided with multiple wings
DE102009042104B4 (en) * 2009-09-21 2011-12-29 Bernhard Werner Wood gas boilers

Also Published As

Publication number Publication date
ATE188727T1 (en) 2000-01-15
DE9411856U1 (en) 1994-09-22
DE59507594D1 (en) 2000-02-17
EP0693545A1 (en) 1996-01-24

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