EP0060938B1 - Device for controlling the active ingredient as it leaves a vibration burner nozzle - Google Patents

Device for controlling the active ingredient as it leaves a vibration burner nozzle Download PDF

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Publication number
EP0060938B1
EP0060938B1 EP81110241A EP81110241A EP0060938B1 EP 0060938 B1 EP0060938 B1 EP 0060938B1 EP 81110241 A EP81110241 A EP 81110241A EP 81110241 A EP81110241 A EP 81110241A EP 0060938 B1 EP0060938 B1 EP 0060938B1
Authority
EP
European Patent Office
Prior art keywords
chamber
burner
conduit
vibratory
diaphragm
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
Application number
EP81110241A
Other languages
German (de)
French (fr)
Other versions
EP0060938A2 (en
EP0060938A3 (en
Inventor
Karl-Heinz Dr. Stahl
Fritz Fend
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
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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
Priority to AT81110241T priority Critical patent/ATE12680T1/en
Publication of EP0060938A2 publication Critical patent/EP0060938A2/en
Publication of EP0060938A3 publication Critical patent/EP0060938A3/en
Application granted granted Critical
Publication of EP0060938B1 publication Critical patent/EP0060938B1/en
Expired legal-status Critical Current

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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

  • the invention relates to a device according to the preamble of claim 1.
  • a device on a burner for controlling the outlet of fuel to be atomized from an outlet nozzle opening into a burner chamber when the burner is shut down which has a compressed air filled with the outlet nozzle connected via a line a diaphragm limited chamber, has a spring acting on the diaphragm in the sense of increasing the volume of the chamber and an actuator acting on the diaphragm in the sense of reducing the volume of the chamber with increasing compressed air flow to the burner.
  • the actuator is formed by a slide valve, which is coupled to the diaphragm and has axial nozzle openings which conically narrow in the direction of flow and serves as an outlet nozzle, in a compressed air channel which blocks fuel feeds which open into the compressed air channel if the compressed air flow fails.
  • the object of the invention is to provide a device according to the preamble of claim 1, which automatically ensures in the event of failure or switching off the oscillating burner that no active ingredient escapes from the nozzle with certainty.
  • the slide 2 of a slide valve 4 lies in a line 6, 8 leading to an oscillating combustion chamber, which is also not shown, under an active substance reservoir, not shown.
  • the line 6 is connected on the input side to the active substance storage container.
  • the line 8 ends in a nozzle 10 which is adjacent to the oscillating combustion chamber.
  • the slide 2 is to be adjusted by a membrane 12.
  • the membrane 12 adjoins a space 14 which has an air inlet opening 16 through which air with a pressure dependent on the strength of the air intake flow of the oscillating burner, a small airflow 18 also flows out, and a second opening which can be opened by a manually actuatable actuator 20 and outlet opening 22 to be closed.
  • the actuator 20 is provided with a screw body 24 which can be turned by means of a knurled handle 26. By unscrewing the screw body 24, the opening 22 is closed, as a result of which the pressure in the space 14 rises, the membrane 12 pushes the slide 2 downward and the slide valve 4 thus comes into the open position.
  • the space 28 below the membrane 12 communicates with the atmosphere via openings 30.
  • a spring 32 tries to push the slide body 2 against the pressure in the space 14 upwards in order to bring the slide body 2 into the closed position.
  • the slide 2 passes through a second membrane 34, to which it is attached with a flange 36.
  • the slide 2 is hollow inside. Active ingredient to be flowed through the line 6 can flow through the constriction 38 and the ring distribution space 42 into the interior of the slide 2 when the openings 40 in the slide 2 are at the level of the ring distribution space 42.
  • the active ingredient then flows through a space 44 below the membrane 34 before it reaches the line 8.
  • the slide 2 reaches the closed position, it takes the membrane 34 upwards and the volume of the space 44 increases, causing active ingredient to flow out the line 8 is sucked back.
  • the space 46 above the membrane 34 is in constant communication with the atmosphere via an opening 48.
  • FIG. 2 is essentially constructed like that according to FIG. 1, so that only the different elements have to be described.
  • a displaceable bolt 50 is provided which connects the two membranes 12, 34.
  • the line 6 leading from the active substance container into the space 46 above the membrane 34 has been omitted.
  • the line 8 opens into a line 52 which leads to the nozzle 10.
  • the line 52 is connected on the input side to the active substance container via a tap.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Pressure-Spray And Ultrasonic-Wave- Spray Burners (AREA)
  • Catching Or Destruction (AREA)
  • Fluid-Driven Valves (AREA)
  • Fluidized-Bed Combustion And Resonant Combustion (AREA)
  • Nozzles (AREA)
  • Tea And Coffee (AREA)
  • Feeding And Controlling Fuel (AREA)

Abstract

A control valve for a resonant burner having a burner space for receiving active substance through a conduit with an atomizing nozzle discharging into the space is disclosed. When the valve is shut off to terminate flow of the active substance through the valve to the burner conduit, a spring action in the valve tends to withdraw the active substance from the conduit by creating a suction effect therein.

Description

Die Erfindung betrifft eine Vorrichtung nach dem Oberbegriff des Anspruchs 1.The invention relates to a device according to the preamble of claim 1.

Nach der DE-C-666 892 ist eine Vorrichtung an einem Brenner zur Steuerung des Austritts von zu vernebelndem Brennstoff aus einer in einem Brennerraum mündenden Austrittsdüse bei Stillsetzung des Brenners bekannt, die eine mit Druckluft gefüllte, mit der Austrittsdüse über eine Leitung verbundene, von einer Membran begrenzte Kammer, eine auf die Membran im Sinne einer Vergrösserung des Volumens der Kammer wirkende Feder und ein auf die Membran im Sinne einer Verkleinerung der Volumens der Kammer mit zunehmendem Druckluftstrom zum Brenner wirkendes Stellglied aufweist. Das Stellglied istdurch ein an die Membran gekoppeltes, mit axialen, sich in Stromrichtung konisch verengenden Düsenöffnungen versehenes, als Austrittsdüse dienendes Schieberventil in einem Druckluft-Kanal gebildet, das bei Ausfall des Druckluftstroms in den Druckluft-Kanal mündende Brennstoffzuführungen sperrt.According to DE-C-666 892, a device on a burner for controlling the outlet of fuel to be atomized from an outlet nozzle opening into a burner chamber when the burner is shut down is known, which has a compressed air filled with the outlet nozzle connected via a line a diaphragm limited chamber, has a spring acting on the diaphragm in the sense of increasing the volume of the chamber and an actuator acting on the diaphragm in the sense of reducing the volume of the chamber with increasing compressed air flow to the burner. The actuator is formed by a slide valve, which is coupled to the diaphragm and has axial nozzle openings which conically narrow in the direction of flow and serves as an outlet nozzle, in a compressed air channel which blocks fuel feeds which open into the compressed air channel if the compressed air flow fails.

Aufgabe der Erfindung ist es, eine Vorrichtung nach dem Oberbegriff des Anspruchs 1 anzugeben, die selbsttätig beim Ausfall oder Abstellen des Schwingbrenners dafür sorgt, dass mit Sicherheit kein Wirkstoff aus der Düse austritt. Bisher hatte man die Einführung einer Restmenge Wirkstoff in den Schwingbrennerraum bei Ausfall oder Abstellen des Schwingbrenners hingenommen, was zwar dem Schwingbrenner nicht schadete, jedoch zu einem zusätzlichen Verbrauch von Wirkstoff führte.The object of the invention is to provide a device according to the preamble of claim 1, which automatically ensures in the event of failure or switching off the oscillating burner that no active ingredient escapes from the nozzle with certainty. Until now, the introduction of a residual amount of active substance into the oscillating burner chamber in the event of failure or switching off of the oscillating burner was accepted, which did not harm the oscillating burner, but led to an additional consumption of active substance.

Die Lösung dieser Aufgabe ist im Kennzeichen des Anspruchs 1 angegeben.The solution to this problem is specified in the characterizing part of claim 1.

Die Lösung hat zur Folge, dass auch nicht mehr die kleinste Wirkstoffmenge aus der Austrittsdüse heraustropfen kann und dadurch wegen ihrer Konzentration Schaden anrichten kann. Vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen angegeben.The result of this is that even the smallest amount of active substance can no longer drip out of the outlet nozzle and can therefore cause damage because of its concentration. Advantageous embodiments of the invention are specified in the subclaims.

Die Erfindung wird im folgenden an zwei Ausführungsbeispielen unter Hinweis auf die beigefügten Zeichnungen beschrieben:

  • Fig. 1 zeigt die erste Ausführungsform, in der die Leitung, die der Wirkstoffzuleitung zur Düse dient, zugleich diejenige Leitung ist, in der der Sog erzeugt wird;
  • Fig. 2 zeigt eine zweite Ausführungsform, bei der diejenige Leitung, in der der Sog erzeugt wird, eine gesonderte Leitung ist.
The invention is described below using two exemplary embodiments with reference to the accompanying drawings:
  • Fig. 1 shows the first embodiment, in which the line that serves the drug supply to the nozzle is also the line in which the suction is generated;
  • Fig. 2 shows a second embodiment in which the line in which the suction is generated is a separate line.

Bei der Ausführungsform nach Fig. 1 liegt der Schieber 2 eines Schieberventils 4 in einer unter einem nicht dargestellten Wirkstoffvorratsbehälter zu einem ebenfalls nicht dargestellten Schwingbrennraum führenden Leitung 6, 8.In the embodiment according to FIG. 1, the slide 2 of a slide valve 4 lies in a line 6, 8 leading to an oscillating combustion chamber, which is also not shown, under an active substance reservoir, not shown.

Die Leitung 6 ist eingangsseitig mit dem Wirkstoffvorratsbehälter verbunden. Die Leitung 8 endet in einer Düse 10, die an den Schwingbrennraum angrenzt.The line 6 is connected on the input side to the active substance storage container. The line 8 ends in a nozzle 10 which is adjacent to the oscillating combustion chamber.

Der Schieber 2 ist von einer Membran 12 zu verstellen. Hierzu grenzt die Membran 12an einen Raum 14, der eine Lufteinlassöffnung 16 aufweist, durch die Luft mit einem von der Stärke des Luftansaugstroms des Schwingbrenners abhängigen Druck einoTTene kleine Husiassorrnung 18 aur, aurcn die Luft ausströmt, und eine zweite von einem handbetätigbaren Stellglied 20 zu öffnende und zu schliessende Auslassöffnung 22. Das Stellglied 20 ist im vorliegenden Fall mit einem Schraubkörper 24 versehen, der mittels eines Rändelgriffs 26 zu verdrehen ist. Durch Niederdrehen des Schraubkörpers 24 wird die Öffnung 22 geschlossen, wodurch der Druck in dem Raum 14 ansteigt, die Membran 12 den Schieber 2 nach unten schiebt und somit das Schieberventil 4 in offen-Stellung gelangt.The slide 2 is to be adjusted by a membrane 12. For this purpose, the membrane 12 adjoins a space 14 which has an air inlet opening 16 through which air with a pressure dependent on the strength of the air intake flow of the oscillating burner, a small airflow 18 also flows out, and a second opening which can be opened by a manually actuatable actuator 20 and outlet opening 22 to be closed. In the present case, the actuator 20 is provided with a screw body 24 which can be turned by means of a knurled handle 26. By unscrewing the screw body 24, the opening 22 is closed, as a result of which the pressure in the space 14 rises, the membrane 12 pushes the slide 2 downward and the slide valve 4 thus comes into the open position.

Der Raum 28 unterhalb der Membran 12 steht über Öffnungen 30 mit der Atmosphäre in Verbindung.The space 28 below the membrane 12 communicates with the atmosphere via openings 30.

Eine Feder 32 versucht den Schieberkörper 2 gegen den Druck im Raum 14 nach oben zu drücken, um den Schieberkörper 2 in Schliessstellung zu überführen.A spring 32 tries to push the slide body 2 against the pressure in the space 14 upwards in order to bring the slide body 2 into the closed position.

Der Schieber 2 durchsetzt eine zweite Membran 34, an der er mit einem Flansch 36 befestigt ist. Im Innern ist der Schieber 2 hohl. Durch die Leitung 6 zu strömender Wirkstoff kann durch die Verengung 38 und den Ringverteilerraum 42 in das Innere des Schiebers 2 fliessen, wenn die Öffnungen 40 im Schieber 2 in Höhe des Ringverteilerraums 42 sind.The slide 2 passes through a second membrane 34, to which it is attached with a flange 36. The slide 2 is hollow inside. Active ingredient to be flowed through the line 6 can flow through the constriction 38 and the ring distribution space 42 into the interior of the slide 2 when the openings 40 in the slide 2 are at the level of the ring distribution space 42.

Der Wirkstoff durchströmt dann, bevor er in die Leitung 8 gelangt, einen Raum 44 unterhalb der Membran 34. Gelangt der Schieber 2 in Schliessstellung, so nimmt er die Membran 34 nach oben mit, und das Volumen des Raumes 44 vergrössert sich, wodurch Wirkstoff aus der Leitung 8 rückgesaugt wird.The active ingredient then flows through a space 44 below the membrane 34 before it reaches the line 8. When the slide 2 reaches the closed position, it takes the membrane 34 upwards and the volume of the space 44 increases, causing active ingredient to flow out the line 8 is sucked back.

Der Raum 46 oberhalb der Membran 34 steht über eine Öffnung 48 ständig mit der Atmosphäre in Verbindung.The space 46 above the membrane 34 is in constant communication with the atmosphere via an opening 48.

Die Ausführungsform nach Fig. 2 ist im wesentlichen so aufgebaut, wie diejenige nach Fig. 1, so dass nur die verschiedenen Elemente zu beschreiben sind. Statt des Schiebers 2 ist ein verschiebbarer Bolzen 50 vorgesehen, der die beiden Membrane 12, 34 verbindet. Die vom Wirkstoffbehälter in den Raum 46 oberhalb der Membran 34 führende Leitung 6 ist entfallen. Die Leitung 8 mündet in eine Leitung 52, die zu der Düse 10 führt. Die Leitung 52 ist eingangsseitig mit dem Wirkstoffbehälter über einen Hahn verbunden.The embodiment according to FIG. 2 is essentially constructed like that according to FIG. 1, so that only the different elements have to be described. Instead of the slide 2, a displaceable bolt 50 is provided which connects the two membranes 12, 34. The line 6 leading from the active substance container into the space 46 above the membrane 34 has been omitted. The line 8 opens into a line 52 which leads to the nozzle 10. The line 52 is connected on the input side to the active substance container via a tap.

Claims (4)

1. Device on a vibratory burner for controlling the outlet of effective substance to be atomised out of an outlet nozzle (10) opening into a vibratory burner chamber on halting of the vibratory burner, characterised by a chamber (44) filled with the effective substance, connected with the outlet nozzle (10) through a conduit (8) and limited by a diaphragm (34), having a spring (32) acting upon the diaphragm (34) in the direction of an enlargement of the volume of the chamber (44) and having a setting member (2, 50) acting upon the diaphragm (34) in the direction of a reduction of the volume of the chamber (44) with increasing suction air current of the vibratory burner.
2. Device according to claim 1, characterised in that the setting member (2, 50) is connected with a second diaphragm (12) which limits a second chamber (14) which is under a pressure dependent upon the suction air current of the vibratory burner.
3. Device according to claim 1 or 2, characterised in that the setting member (2) is formed as a hollow- cylindrical slide member of a slider valve (4) which feeds effective substance to the first chamber (44) from a conduit (6) connected with an effective substance container, an annular distributor chamber (42) and a opening (40) in the shell of the hollow- cylindrical slide member, when the volume of the chamber (44) falls short of a pre-determined amount.
4. Device according to claim 1 or 2, characterised in that the conduit (8) leading to the outlet nozzle (10) opens into a conduit (52) connected with an effective substance container.
EP81110241A 1981-01-09 1981-12-07 Device for controlling the active ingredient as it leaves a vibration burner nozzle Expired EP0060938B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81110241T ATE12680T1 (en) 1981-01-09 1981-12-07 DEVICE FOR CONTROLLING THE OUTLET OF ACTIVE SUBSTANCES FROM A PIVOT BURNER NOZZLE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3100414 1981-01-09
DE19813100414 DE3100414A1 (en) 1981-01-09 1981-01-09 DEVICE ON A VIBRATION BURNER FOR CONTROLLING THE OUTPUT OF ACTIVE SUBSTANCE TO BE FOGGED FROM AN OUTLET NOZZLE

Publications (3)

Publication Number Publication Date
EP0060938A2 EP0060938A2 (en) 1982-09-29
EP0060938A3 EP0060938A3 (en) 1983-03-09
EP0060938B1 true EP0060938B1 (en) 1985-04-10

Family

ID=6122341

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81110241A Expired EP0060938B1 (en) 1981-01-09 1981-12-07 Device for controlling the active ingredient as it leaves a vibration burner nozzle

Country Status (7)

Country Link
US (1) US4504214A (en)
EP (1) EP0060938B1 (en)
JP (1) JPS57130563A (en)
AT (1) ATE12680T1 (en)
BR (1) BR8200067A (en)
CA (1) CA1195229A (en)
DE (2) DE3100414A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0232993Y2 (en) * 1986-01-29 1990-09-06
DE4236371C2 (en) * 1992-10-28 1995-08-17 Erno Raumfahrttechnik Gmbh Injection device and method
JP3467438B2 (en) * 1999-09-29 2003-11-17 アドバンス電気工業株式会社 Back pressure control valve

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE666982C (en) * 1934-12-21 1938-11-02 Gustav Schlick OElzerstaeuber with a regulating element controlling the oil inflow
GB746068A (en) * 1953-09-25 1956-03-07 Urquhart S 1926 Ltd Improvements relating to the supply of fuel to liquid fuel burners
AT196045B (en) * 1955-01-14 1958-02-25 Serge Ing Ziegler Device to prevent oil dripping from the feed line of oil burners operated with pressure oil
AT196046B (en) * 1956-01-13 1958-02-25 Serge Ing Ziegler Device for preventing oil dripping from the feed line of oil burners working with compressed air
GB1237076A (en) * 1967-09-21 1971-06-30 Pilkington Brothers Ltd Improvements in and relating to apparatus for controlling the supply of liquid fuel to burners
US3817264A (en) * 1973-02-14 1974-06-18 Precision Control Prod Corp Valve

Also Published As

Publication number Publication date
CA1195229A (en) 1985-10-15
EP0060938A2 (en) 1982-09-29
JPS57130563A (en) 1982-08-13
JPH0125625B2 (en) 1989-05-18
EP0060938A3 (en) 1983-03-09
ATE12680T1 (en) 1985-04-15
US4504214A (en) 1985-03-12
DE3169904D1 (en) 1985-05-15
BR8200067A (en) 1982-10-26
DE3100414A1 (en) 1982-08-12

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