EP0429615A1 - Brenner für impulsweise verbrennung. - Google Patents

Brenner für impulsweise verbrennung.

Info

Publication number
EP0429615A1
EP0429615A1 EP90909188A EP90909188A EP0429615A1 EP 0429615 A1 EP0429615 A1 EP 0429615A1 EP 90909188 A EP90909188 A EP 90909188A EP 90909188 A EP90909188 A EP 90909188A EP 0429615 A1 EP0429615 A1 EP 0429615A1
Authority
EP
European Patent Office
Prior art keywords
tube
combustion chamber
supply
openings
disc
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.)
Granted
Application number
EP90909188A
Other languages
English (en)
French (fr)
Other versions
EP0429615B1 (de
Inventor
Johannes Gerardus Alph Postmes
Wilhelmus Paulus Willems
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.)
STICHTING IMPULS
Original Assignee
POSTMES JOHANNES GERARDUS ALPHONS MARIE
STICHTING IMPULS
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 POSTMES JOHANNES GERARDUS ALPHONS MARIE, STICHTING IMPULS filed Critical POSTMES JOHANNES GERARDUS ALPHONS MARIE
Publication of EP0429615A1 publication Critical patent/EP0429615A1/de
Application granted granted Critical
Publication of EP0429615B1 publication Critical patent/EP0429615B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C15/00—Apparatus in which combustion takes place in pulses influenced by acoustic resonance in a gas mass

Definitions

  • Combustor for pulsating combustion Combustor for pulsating combustion.
  • the present invention relates to a combustor for pulsating combustion, having a combustion chamber which at the inlet side is connected with a supply tube for combustion air and a supply tube for fuel and at the outlet side is provided with one or more exhaust tubes for the gasses, as is described in EP-A 157.372.
  • the combustion chamber and the in- and outlet tubes are dimensioned in such a way that they form a resonance tube which compares with the periodical
  • combustor simply can be adapted to the circumstances without interfering with the construction of the combustor.
  • this is obtained by arranging the inlet tubes one into the other, in such a way that between these inlet tubes an annular space is present, whereby the inner tube is movable in axial direction with respect to the outer tube and is provided with a widening at the side facing the combustion chamber, which widening is provided with a collar which abuts against the inside of the outer tube and wherein the wall of the widening and/or the collar is provided with openings for supplying the medium present in the annular space into the combustion chamber.
  • the content of the combustion chamber can be altered even when the combustor is in operation. After assembly the combustor in operation can be brought in optimized resonance. The frequency, power output, composition of the exhaust gasses and the kind of fuel can now efficiently be adjusted without changing the construction of the
  • the moving parts of the combustor and/or those parts that are subjected to wear are better to be reached for maintenance and/or inspection. They all together can be taken out of the combustor-system in one movement.
  • the resonance of the combustor is adjusted by means of adjusting the combustor-head also the content of the fore-space between the tubes changes. This may influence the proportion of the air/fuel ratio in the combustion chamber.
  • a disc which is provided with supply openings is axially movable in the space between both tubes. In this way it is possible to adjust the content of this space.
  • the combustor comprises a combustion chamber A being a part of the air supply tube B but divided from it by the combustor head C.
  • the air valve section E is located in such a way that there is a fore-chamber D between this section and the combustor head.
  • the combustor head C consists of the fuel supply tube 1 which is provided with a widening 2 at the side facing the
  • the widening has a radial outward situated collar 3. This collar may slide along the inner surface of the air supply tube B. In the wall of the widening 2 openings 4 for the supply of the combustion air from the fore-chamber D to the combustion chamber A are present.
  • an axially movable disc 5 is supported by a support not shown in the drawing.
  • This disc is fitted with supply openings 6 for the supply of the fuel.
  • a spark plug 14 is mounted on this disc. This plug is connected by wires with a power source not shown in the drawing. These wires may be led trough tube 1.
  • the air valve section E consists of a sleeve gland 7, a gasket 8, a gland 9, a distance piece 10, a gasket
  • the air valve section E may be fastened air tight to tube 1 by means of sleeve gland 7 and the gasket 8.
  • the location of this fitting dictates the content of fore-chamber D.
  • the distance piece 10 and the gasket 11, disc 12 may be fastened air tight to the air supply tube B.
  • the location of this fitting dictates the content of the combustion chamber and also the total content of the resonance system. In this way it is possible to " tune in " the combustor from the outside, without the need to take constructive measures.
  • spark plug 14 and the valve section E may be taken out of the outer tube B as if it where one piece.
  • the invention is not limited to the example described above.
  • the discs 5 and 12 may be equipped with an amount of narrow openings. When the combustion in the combustion chamber takes place, these openings deliver sufficient resistance to limit the pressure rise more or less to the front of these discs. By increasing the width of the openings an increasing portion of the flue gasses of the preliminary combustion will be part of the new mixture. I n this way it is possible to reduce the power output, but also to create a NOx reduction.
  • the supply openings in the wall of the widening may be made in the collar as well as any where in the outline of the
  • the function of the spark plug or the filament is to start the combustion.
  • the power supply of the spark plug or filament might be shut off.
  • the described installation preferably works with gaseous or fluid fuels, but solid fuels ( powder ) also can be used.
  • the content of a combustion chamber of 500 cm 3 equals a power output of ⁇ 30 kWatt, whereas in a combustion chamber of 040 x 300 cm ⁇ 10 MWatt can be generated.
  • the frequency of the combustion cycle mostly vary between 50 and 200 Hz.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluidized-Bed Combustion And Resonant Combustion (AREA)
EP90909188A 1989-06-05 1990-06-05 Brenner für impulsweise verbrennung Expired - Lifetime EP0429615B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NL8901416A NL8901416A (nl) 1989-06-05 1989-06-05 Brander voor pulserende verbranding.
NL8901416 1989-06-05
PCT/NL1990/000080 WO1990015286A1 (en) 1989-06-05 1990-06-05 Combustor for pulsating combustion

Publications (2)

Publication Number Publication Date
EP0429615A1 true EP0429615A1 (de) 1991-06-05
EP0429615B1 EP0429615B1 (de) 1994-12-21

Family

ID=19854773

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90909188A Expired - Lifetime EP0429615B1 (de) 1989-06-05 1990-06-05 Brenner für impulsweise verbrennung

Country Status (7)

Country Link
EP (1) EP0429615B1 (de)
AT (1) ATE116051T1 (de)
DE (1) DE69015328T2 (de)
DK (1) DK0429615T3 (de)
ES (1) ES2065534T3 (de)
NL (1) NL8901416A (de)
WO (1) WO1990015286A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL9002525A (nl) * 1990-11-19 1992-06-16 Stichting Impuls Brander voor pulserende verbranding.
AUPQ809700A0 (en) * 2000-06-09 2000-07-06 Commonwealth Scientific And Industrial Research Organisation Pulse combustion chamber and pulse combustor
DE10211141A1 (de) 2002-03-14 2003-09-25 Alstom Switzerland Ltd Verfahren zum Zünden der Brennkammer einer Gasturbinenanlage sowie Zündvorrichtung zur Durchführung des Verfahrens

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB776932A (en) * 1953-07-02 1957-06-12 Babcock & Wilcox Ltd Improvements in or relating to combustion apparatus
US4759312A (en) * 1985-06-12 1988-07-26 Georg Pletzer Furnace system
US4699588A (en) * 1986-03-06 1987-10-13 Sonotech, Inc. Method and apparatus for conducting a process in a pulsating environment

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9015286A1 *

Also Published As

Publication number Publication date
DE69015328D1 (de) 1995-02-02
DK0429615T3 (da) 1995-05-15
WO1990015286A1 (en) 1990-12-13
DE69015328T2 (de) 1995-05-18
NL8901416A (nl) 1991-01-02
EP0429615B1 (de) 1994-12-21
ES2065534T3 (es) 1995-02-16
ATE116051T1 (de) 1995-01-15

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