EP0194553A2 - Brûleur à mazout avec pulvérisation par surpression - Google Patents

Brûleur à mazout avec pulvérisation par surpression Download PDF

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Publication number
EP0194553A2
EP0194553A2 EP86102807A EP86102807A EP0194553A2 EP 0194553 A2 EP0194553 A2 EP 0194553A2 EP 86102807 A EP86102807 A EP 86102807A EP 86102807 A EP86102807 A EP 86102807A EP 0194553 A2 EP0194553 A2 EP 0194553A2
Authority
EP
European Patent Office
Prior art keywords
end plate
oil burner
intake duct
air
air intake
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
EP86102807A
Other languages
German (de)
English (en)
Other versions
EP0194553A3 (en
EP0194553B1 (fr
Inventor
Weishaupt Gmbh Max
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.)
Max Weishaupt GmbH
Original Assignee
Max Weishaupt 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 Max Weishaupt GmbH filed Critical Max Weishaupt GmbH
Priority to AT86102807T priority Critical patent/ATE47219T1/de
Publication of EP0194553A2 publication Critical patent/EP0194553A2/fr
Publication of EP0194553A3 publication Critical patent/EP0194553A3/de
Application granted granted Critical
Publication of EP0194553B1 publication Critical patent/EP0194553B1/fr
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
    • F23D11/001—Spraying nozzle combined with forced draft fan in one unit
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D11/00—Burners using a direct spraying action of liquid droplets or vaporised liquid into the combustion space
    • F23D11/36—Details

Definitions

  • the invention relates to an atomizer oil burner with the features of the preamble of claim 1.
  • Pressure atomizer oil burners of the type in question here are those in which the spiral housing of the fan in the pressure zone merges practically tangentially into the flame tube which passes through the end plate.
  • the shaft of the impeller extends parallel to the plane of the passage area of the end plate and that the drive motor with its output shaft is arranged on one side coaxially to the shaft of the impeller, while the drive shaft of the oil pump is coaxial on the other axial side of the volute casing located.
  • the axial input and thus the air control housing is usually located between the fan wheel and the oil pump.
  • the entrance area of the air control housing opens freely into the space which is enclosed by the cover hood which is connected to the end plate.
  • An air intake duct is provided in the end plate, so that, during operation, air can flow in from outside into the interior enclosed by the cover hood when the fan sucks in air from this interior through the air control housing and supplies it to the flame tube.
  • the oil burner is adjusted - naturally with the cover removed - for example by adjusting the air flap, the nozzle assembly and the like. If the cover is then put on, there is a different resistance behavior for the Air supply, since during the adjustment with the cover removed, the entrance area of the air control housing opened into the free space, while with the cover attached, the air from the covered interior now has to be sucked in underflow through the air intake duct. This results in a certain lack of air compared to the air delivery conditions during adjustment with the cover removed.
  • the invention has for its object to design the atomizer oil burner of the type mentioned in such a way that the air supply conditions for the fan during the setting of the burner are the same as those during operation.
  • the air control housing is connected with its input area to an opening in the end plate, to which the air intake duct connects on the outside.
  • the noise generated by the blower or the intake air should be as low as possible, which is why the suction channel extends over the largest possible distance on the outside of the end plate and is designed to be sound-absorbing.
  • the air intake duct extends from the one below the flame tube and on the other hand to the side bar edge of the end plate is arranged offset starting from below the flame tube to the opposite side edge of the end plate.
  • the air intake duct is formed between the outer surface of the end plate and a cover-shaped duct housing, which is in particular elongated, cup-shaped and is closed at its front end overlapping the opening and is designed as an air inlet opening at the opposite end.
  • the sound-absorbing design of the air intake duct is preferably provided by a lining, in particular made of a polyurethane foam.
  • This lining which is preferably limited to the inner walls of the shell-shaped channel housing, can be foamed onto these inner walls.
  • this lining is designed as an insulating body which is inserted into the channel housing, covering its inner walls.
  • the insulating body can be attached to the inner walls by gluing; however, this is not necessary since when the duct housing is applied to the outside of the end plate - in particular by means of a screw connection accessible from the inside - the lining is held in its position within the duct housing without being fixed.
  • the elongated intake duct is formed lengthways, with at least one longitudinal web, which is preferably formed by the insulating body.
  • a ratio between the length of the individual channel and its width or diameter, which is advantageous for sound insulation, is achieved.
  • the sound is reflected in these channels and attenuated accordingly in the reflections on the sound-absorbing lining.
  • Two or more such parallel individual ducts can be formed, which extend over part of the length of the intake duct, for example starting shortly behind the air inlet opening and ending before the transition to the opening in the end plate, to which the input region of the air control housing is located on the inside closes. In this transition area, i.e.
  • the insulating body made of polyurethane foam can be open-pore or with a thin surface skin.
  • the interior between the end plate and the cover hood is ventilated through a further opening provided in the end plate, in particular in such a way that this opening opens into the initial region of the air intake duct.
  • a further opening provided in the end plate, in particular in such a way that this opening opens into the initial region of the air intake duct.
  • heated air forms which has to be exchanged, for example because of electronic controls and other heat-sensitive parts.
  • the air content of the interior is exchanged through the further opening due to the sucked-in air.
  • An increased suction is then exerted on this second opening, with the result that fresh air is sucked into the first opening seen from the inlet opening of the air intake duct, while the heated air of the interior exits through the second opening and thus a preheated air portion for the supply to the flame tube.
  • the air conditions for the combustion process are identical when the cover is removed and attached. This means that the settings made for normal operation when the cover is removed with the hood attached, it remains valid and correct.
  • the connection to the silenced air intake duct ensures that the noise caused by the intake of air as well as by the fan operation is effectively attenuated. This is made possible by the direct connection of the air control housing to the air intake duct.
  • the atomizer oil burner designated overall by 1, according to the exemplary embodiment is provided with an end plate 2, which in this respect forms a load-bearing part.
  • the flame head 3 On the outside of the end plate 2, the flame head 3 is provided at the end of a flame tube 4, which is connected to the fan denoted overall by 5 or forms an integral part of the spiral housing 6 of the fan.
  • the fan 5 is arranged on the inside of the end plate 2, so that the flame tube 4 passes through the end plate 2.
  • the flame tube 4 connects practically tangentially to the discharge area of the spiral housing 6 of the blower 5 and is oriented with respect to its axis approximately perpendicular to the plane of the end plate in this area, as can be seen in FIGS. 1 and 2.
  • the impeller 7 is arranged axially between the drive motor 8 and the oil pump 9, in such a way that the output shaft of the drive motor 8, the drive shaft of the impeller 7 and the drive shaft of the oil pump 9 on a common axis 10, which extends parallel to the plane of the end plate 2.
  • the end plate 2 is of stepped design in terms of its cross section, that is to say it is offset to the front in the area where the flame tube 4 is passed and is correspondingly arranged in the area below. If the plane of the end plate 2 is mentioned here, then it is approximately perpendicular to the longitudinal axis of the flame tube 4 with respect to the extension of the respective intended partial area.
  • This air control housing 11 has an input area 12, which houses an air control flap 13, which enables the adjustment of the amount of air conveyed in each case.
  • this input area 12 of the air control housing 11 opens into the interior 15, which is formed between the end plate 2 and a cover 14 connected to it.
  • the cover 14 thus encloses the fan 5, the drive motor 8, the oil pump 9 and the air control housing 11 together with control and regulating devices and the like, not shown, as are known from this type of burner.
  • AI the aforementioned parts are arranged or attached directly or indirectly to the inside 16 of the end plate 2.
  • the input area 12 of the air control housing 11 is directly connected to an opening 18 which is provided in the end plate 2, as can be seen in the figures.
  • an air intake duct designated overall by 19, which adjoins the opening 18 in its end region.
  • the air intake duct 19 is formed between the outside 17 of the end plate 2 and the inside of a duct housing 20, which is in the form of a shell from the one side edge 21 of the end plate 2, towards which the opening 18 ′ is offset toward the center, to the opposite side edge 22 extends.
  • Fig. 1 shows that the shell-shaped channel housing 20 runs below the flame tube 4 or the correspondingly advanced portion of the end plate 2, in the operating position approximately horizontally. With its end 23 located near the side edge 21 of the end plate 2, the channel housing 20 completely engages over the opening 18, while at the opposite end of the channel housing 20 an air inlet opening 24 is provided, which has a protective grid 25 which is formed from parallel ribs . Between the air inlet opening 24 and the opening 18, which connects the air intake duct 19 to the air control housing 11, an elongated duct is thus created, which extends vertically below the flame tube 4 over a large part of the width of the end plate 2.
  • the air intake duct 19 is designed to be sound-insulated with the aid of a lining 26, which consists of a sound insulating body 27 which only covers the inner walls of the duct housing 20, but not the outside 17 of the end plate 2. This makes it possible to form the lining 26 in one piece without danger to run that a secondary channel or a slot is formed between the lining and the outer surface 17 of the end plate 2.
  • the reflections of the outside 17 of the end plate 2 meet parts of the insulating body 27 where is achieved through effective sound absorption. Several reflections can easily occur, which are dampened from time to time due to the insulating material, preferably a polyurethane foam. This polyurethane foam or a similar material can have openings that serve as resonators, but very good sound insulation is achieved even with a thin-skinned surface of the insulating material.
  • the cavity of the air intake duct 19 is divided into two individual ducts 29 and 30, namely by a longitudinal web 28 which is formed in one piece on the formwork insulating body 27.
  • a longitudinal web 28 which is formed in one piece on the formwork insulating body 27.
  • two or more such webs can also be provided, with the result that a correspondingly large number of individual channels are formed.
  • the longitudinal web 28 extends from an input region of the air intake duct 19 located just behind the air inlet opening 24 to the beginning of the opening 18.
  • the sound insulation body 27 is provided with a thickening, which can be referred to as the sound energy sump 31.
  • the air noise here is absorbed and absorbed far into the depth. The sound insulation achieved with this is very considerable.
  • the inner wall 33 of the is curved the outer deflecting portion of the air control housing 11 is approximately quarter-circular, in plan view from above, as can be seen in FIG. 2.
  • the center point of the quarter-circle arc lies approximately in the intersection between the axis 10 and the plane of the axial inlet opening 32 of the spiral housing 6.
  • FIG. 2 there is another opening 34 below the flame tube 4 and, in contrast, displaced to the side edge 22 of the end plate 2, that is to say transversely symmetrically approximately opposite the opening 18, which connects the input region of the air intake duct 19 to the interior 15, is formed between the inside 16 of the end plate 2 and the cover 14.
  • This interior heats up during operation, so that ventilation appears to be necessary for this reason alone.
  • the flow of the sucked-in air runs transversely to the opening 34 through the suction duct 19, so that a certain suction is exerted on the interior 15.
  • heated air is taken from the interior 15 and fed to the blower, while part of the outside air entering through the air inlet opening 24 of the air intake duct 19 can get into the interior 15.
  • the exchange effect on the interior 15 can still be promoted, whereby one can take advantage of the fact that the suction effect in the region of the individual ducts increases due to the higher flow velocity.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Housings, Intake/Discharge, And Installation Of Fluid Heaters (AREA)
  • Fats And Perfumes (AREA)
  • Pressure-Spray And Ultrasonic-Wave- Spray Burners (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP86102807A 1985-03-12 1986-03-04 Brûleur à mazout avec pulvérisation par surpression Expired EP0194553B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86102807T ATE47219T1 (de) 1985-03-12 1986-03-04 Druckzerstaeuber-oelbrenner.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8507205U 1985-03-12
DE8507205U DE8507205U1 (de) 1985-03-12 1985-03-12 Druckzerstäuber-Ölbrenner

Publications (3)

Publication Number Publication Date
EP0194553A2 true EP0194553A2 (fr) 1986-09-17
EP0194553A3 EP0194553A3 (en) 1988-04-20
EP0194553B1 EP0194553B1 (fr) 1989-10-11

Family

ID=6778535

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86102807A Expired EP0194553B1 (fr) 1985-03-12 1986-03-04 Brûleur à mazout avec pulvérisation par surpression

Country Status (3)

Country Link
EP (1) EP0194553B1 (fr)
AT (1) ATE47219T1 (fr)
DE (2) DE8507205U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0389409A3 (fr) * 1989-03-22 1991-05-22 Füllemann Patent Ag Brûleur à huile ou à gaz

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1551674A1 (de) * 1967-05-31 1970-03-19 Herrmann Kg OElbrenner
DE3339191A1 (de) * 1982-10-29 1984-05-03 Joh. Vaillant Gmbh U. Co, 5630 Remscheid Mit einem fluiden brennstoff gespeister brenner

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0389409A3 (fr) * 1989-03-22 1991-05-22 Füllemann Patent Ag Brûleur à huile ou à gaz

Also Published As

Publication number Publication date
ATE47219T1 (de) 1989-10-15
DE3666288D1 (en) 1989-11-16
EP0194553A3 (en) 1988-04-20
EP0194553B1 (fr) 1989-10-11
DE8507205U1 (de) 1986-07-17

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