EP0562323B1 - Brûleur avec tube foyer - Google Patents

Brûleur avec tube foyer Download PDF

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Publication number
EP0562323B1
EP0562323B1 EP93103452A EP93103452A EP0562323B1 EP 0562323 B1 EP0562323 B1 EP 0562323B1 EP 93103452 A EP93103452 A EP 93103452A EP 93103452 A EP93103452 A EP 93103452A EP 0562323 B1 EP0562323 B1 EP 0562323B1
Authority
EP
European Patent Office
Prior art keywords
burner
water
burner according
water jacket
combustion tube
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
EP93103452A
Other languages
German (de)
English (en)
Other versions
EP0562323A3 (en
EP0562323A2 (fr
Inventor
Karl Ackermann
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.)
Ackermann Technische Anlagen und Maschinenbau GmbH
Original Assignee
Ackermann Technische Anlagen und Maschinenbau GmbH
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 Ackermann Technische Anlagen und Maschinenbau GmbH filed Critical Ackermann Technische Anlagen und Maschinenbau GmbH
Publication of EP0562323A2 publication Critical patent/EP0562323A2/fr
Publication of EP0562323A3 publication Critical patent/EP0562323A3/de
Application granted granted Critical
Publication of EP0562323B1 publication Critical patent/EP0562323B1/fr
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
    • F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
    • F23M5/00—Casings; Linings; Walls
    • F23M5/08—Cooling thereof; Tube walls
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B3/00—Combustion apparatus which is portable or removable with respect to the boiler or other apparatus which is heated
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/14—Arrangements for connecting different sections, e.g. in water heaters 
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/14—Arrangements for connecting different sections, e.g. in water heaters 
    • F24H9/142—Connecting hydraulic components
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/14—Arrangements for connecting different sections, e.g. in water heaters 
    • F24H9/148—Arrangements of boiler components on a frame or within a casing to build the fluid heater, e.g. boiler

Definitions

  • the invention relates to a burner with a flame burner tube for connection to a boiler for the purpose of heating it.
  • the prior art provides so-called pre-ovens in a pre-arrangement of boilers which are operated with a burner.
  • the supplied solid material is burned in the forehearth, the flame of which is directed through a flame combustion tube at the combustion chamber of a downstream boiler.
  • the flame combustion tube is in turn designed as a so-called "hot" combustion chamber and reaches firing temperatures of up to 1080 o C.
  • the tube is able to ignite the fuel fed into the combustion chamber again when a consumer requests heat Burning operation has been interrupted (intermittent operation of a burner).
  • the burnout of the particles in general and also the CO are considerably reduced, but not the reduction of NO x . Rather, the formation of NO x is increasingly the case with a hot combustion chamber or flame combustion tubes.
  • the NO x formation begins at 800 to 850 o C.
  • the object of the invention is to provide a burner with a flame burner tube, which is simple in construction and, with the aid of simple means, not only has a good heating efficiency with low-pollutant flue gas combustion, but also in which the burnout not only has a reduced CO but also a reduced NO has x values.
  • the essence of the invention is the formation of a ("hot") water-cooled flame combustion tube, especially in the last third of the tube, which faces the boiler and is normally located outside the burner housing.
  • water cooling is provided in the form of a water jacket with flow and return, the water jacket being arranged in or on the outer circumference of the flame combustion tube, which preferably consists of ceramic or has a ceramic insert.
  • a burner arrangement in the form of a solid-fuel fan burner is known from EP 0 445 437 A2, in which the fan not only feeds primary air via a first air duct to the underside of the filling shaft below the grate and secondary air via a second air duct above the grate, but also via another air duct cools the flame or burnout tube in order to reduce the flame temperature during operation of the burner.
  • last air channel is comparatively complicated and involves increased production costs. If the burner is not equipped with a further hot (swirl) combustion chamber in front of it, reduced NO x values occur in the burnout, but the CO values remain comparatively high, since the burnout tube is effective for an effective reduction of CO as a result of air cooling " cold "is operated.
  • the hot, water-cooled flame combustion tube first lowers the CO in the hot zone on the inlet side and then the NO x in the subsequent water-cooled zone, since there is a locally lower flame temperature. It has been shown that the NO x values from 400 to 470 mg to about 70 to 80 mg could be reduced by the invention.
  • a water-cooled flame combustion tube is known in principle from US-A-4 444 153. However, this does not have a hot burning zone on the input side.
  • the water-cooled flame combustion tube is preferably connected to the water-cooled burner or to the burner's water jacket in the region of the burner housing.
  • the water-cooled flame combustion tube has not only a forward and a return, but preferably also a (separate) circulation pump in order to keep the water circuit between the flame tube and the boiler body constant.
  • the burner is preferably a solid-fuel fan burner with a ceramic burner tube, which can be connected to a wide variety of heating boiler brands.
  • the burner 1 in the form of a solid-fuel fan burner with a fan 20 comprises, above the grate 21, a tubular swirl chamber 22 which is open on the jacket side and, in the coaxial connection thereto, a burnout tube in the form of a flame combustion tube 2.
  • Both the burner 1 and the boiler 3 have a water jacket 24 or 25, the water-cooled burner 1 being connected to the water jacket 25 of the boiler.
  • the flame combustion tube 2 which is formed as a so-called "hot" combustion chamber from a ceramic material, is also water-cooled and as such has a water cooling system 4 with a water jacket 5 in the last pipe third protruding from the burner with supply and return to the water jacket 25 of the Boiler, as can be seen in particular in Figs. 1 and 2.
  • the top of the water jacket 4 of the flame burner tube 2 is connected via a third upper line branch 12 to a second branch 18, a temperature controller 16 and a further gate valve 17 to the top of the water jacket 25 of the boiler, as is shown particularly schematically in FIG. 1 can be seen.
  • the second branch 18 is communicatively connected to the top of the water-cooled burner 1 via a fourth line branch 13, a safety valve 19 being arranged in this line branch 13.
  • the first line branch 10 and the third line branch 12 are connected between the branch 9 and the second branch 18 in parallel to the second line branch 11 and the fourth line branch 13.
  • the separate circulation pump 6, the water-cooled flame combustion tube 2 is supplied according to the set temperature of the temperature controller 16 with cooling water in connection with the throttle valve 14, so that the last tube thirds is cooled in operation at below 800 o C, while the rest of the flame Fuel tube 2, and the upstream hot swirl chamber 22 remains hot in the temperature range of up to 1080 o C.
  • the CO is primarily reduced and then in the water-cooled zone, the NO x .
  • the hot zone can, for example, be formed exclusively by an upstream swirl chamber 22.
  • the swirl chamber 22 is then primarily a ceramic insert. If no swirl chamber 22 is provided, only the last part of the flame combustion tube 2 is water-cooled. The non-water-cooled rest of the flame combustion tube 2 is then the hot combustion chamber, which treats the carbon monoxide.
  • the flame burner tube 2 can be longer than that shown in FIG. 3. It is primarily a single pipe. A tube package with several individual tubes of smaller diameter is also possible. If all of the parallel individual tubes are then washed around their circumference, for example in the last third of the tube, there is obviously a higher cooling or heat exchanger area than in the case of a one-piece flame combustion tube 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Gas Burners (AREA)
  • Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)

Claims (13)

  1. Brûleur (1) à tube-foyer (2), destiné à être raccordé à une chaudière de chauffage (3) pour le chauffage de celle-ci, caractérisé en ce que le tube-foyer (2) présente, du côté entrée, une zone chaude et une zone refroidie par eau qui s'y raccorde.
  2. Brûleur selon la revendication 1, caractérisé en ce qu'une chemise d'eau (5) avec tubulures d'arrivée et de retour est prévue sur ou dans le pourtour externe du tube-foyer (2), en particulier le long du dernier tiers environ de celui-ci, qui est raccordé à la chaudière de chauffage (3).
  3. Brûleur selon la revendication 1 ou 2, caractérisé en ce que le système de refroidissement par eau (4) du tube-foyer (2) est raccordé à la chemise d'eau du carter de brûleur refroidi par eau.
  4. Brûleur selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le tube-foyer (2) refroidi par eau comporte une pompe de circulation (6) qui est raccordée, dans la région du côté inférieur, a la chemise d'eau de la chaudière de chauffage (3).
  5. Brûleur selon la revendication 4, caractérisé en ce qu'une vanne d'arrêt (7) est placée en amont de la pompe de circulation (6).
  6. Brûleur selon la revendication 4 ou 5, caractérisé en ce qu'un régulateur de pression (8) à commande par gravité est placé en aval de la pompe de circulation (6).
  7. Brûleur selon la revendication 4 ou 5, caractérisé en ce qu'une bifurcation (9) est située en aval de la pompe de circulation (6), une première branche de canalisation (10) conduisant au côté inférieur de la chemise d'eau (5) du tube-foyer (2) et une seconde branche de canalisation (11) étant raccordée au côté inférieur de la chemise d'eau du carter de brûleur.
  8. Brûleur selon la revendication 7, caractérisé en ce qu'une vanne d'étranglement (14) est disposée dans la première branche de canalisation (10).
  9. Brûleur selon la revendication 7 ou 8, caractérisé en ce qu'un robinet (15) de remplissage de la chaudière de chauffage et de vidange est disposé dans la seconde branche de canalisation (15).
  10. Brûleur selon l'une quelconque des revendications 4 à 9, caractérisé en ce qu'un régulateur de température (16) et/ou une autre vanne d'arrêt (17) sont disposés dans une troisième branche de canalisation supérieure (12) en aval de la chemise d'eau (5) du tube-foyer (2), la troisième branche de canalisation (12) étant raccordée à la chemise d'eau de la chaudière de chauffage (3) dans la région du côté supérieur.
  11. Brûleur selon la revendication 10, caractérisé en ce qu'il est prévu, dans la troisième branche de canalisation (12), une seconde bifurcation (18) qui est raccordée, par l'intermédiaire d'une quatrième branche de canalisation (13), à une soupape de sûreté (19) et au côté supérieur de la chemise d'eau du carter de brûleur.
  12. Brûleur selon l'une quelconque des revendications 1 à 11, caractérisé en ce que le tube-foyer (2) est une tubulure insérable en céramique.
  13. Brûleur selon l'une quelconque des revendications 1 à 12, caractérisé en ce que le brûleur est un brûleur à air soufflé et à combustible solide.
EP93103452A 1992-03-25 1993-03-04 Brûleur avec tube foyer Expired - Lifetime EP0562323B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4209734A DE4209734C2 (de) 1992-03-25 1992-03-25 Brenner mit Flammen-Brennrohr
DE4209734 1992-03-25

Publications (3)

Publication Number Publication Date
EP0562323A2 EP0562323A2 (fr) 1993-09-29
EP0562323A3 EP0562323A3 (en) 1993-10-20
EP0562323B1 true EP0562323B1 (fr) 1997-05-21

Family

ID=6455012

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93103452A Expired - Lifetime EP0562323B1 (fr) 1992-03-25 1993-03-04 Brûleur avec tube foyer

Country Status (4)

Country Link
EP (1) EP0562323B1 (fr)
AT (1) ATE153431T1 (fr)
DE (2) DE4209734C2 (fr)
PL (1) PL170481B1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102016004789A1 (de) 2016-04-21 2017-10-26 Scheer Heizsysteme Und Produktionstechnik Gmbh Flammrohr

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3115167A1 (de) * 1980-03-12 1982-11-11 Nikolaus Reininger Gebaeudeheizeinrichtung
US4412526A (en) * 1981-01-16 1983-11-01 Degrose Louis Water tempering system
CA1122970A (fr) * 1981-03-10 1982-05-04 110707 Canada Ltee Chauffe-eau a recuperateur de chaleur
US4444153A (en) * 1981-08-17 1984-04-24 Suxe Combustion Limited Grateless furnace for solid fuel
DE9002826U1 (de) * 1990-03-09 1990-06-13 Ackermann GmbH Technische Anlagen und Maschinenbau, 8332 Massing Brenneranordnung

Also Published As

Publication number Publication date
EP0562323A3 (en) 1993-10-20
ATE153431T1 (de) 1997-06-15
DE4209734A1 (de) 1993-09-30
PL170481B1 (pl) 1996-12-31
DE59306486D1 (de) 1997-06-26
EP0562323A2 (fr) 1993-09-29
PL297869A1 (en) 1993-11-02
DE4209734C2 (de) 1994-06-09

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