EP0055734B1 - Düse für brenner - Google Patents

Düse für brenner Download PDF

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Publication number
EP0055734B1
EP0055734B1 EP81901912A EP81901912A EP0055734B1 EP 0055734 B1 EP0055734 B1 EP 0055734B1 EP 81901912 A EP81901912 A EP 81901912A EP 81901912 A EP81901912 A EP 81901912A EP 0055734 B1 EP0055734 B1 EP 0055734B1
Authority
EP
European Patent Office
Prior art keywords
nozzle
filter
openings
burner
fluid
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
EP81901912A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0055734A1 (de
Inventor
Herbert Frehner
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.)
Satronic AG
Original Assignee
Satronic AG
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 Satronic AG filed Critical Satronic AG
Publication of EP0055734A1 publication Critical patent/EP0055734A1/de
Application granted granted Critical
Publication of EP0055734B1 publication Critical patent/EP0055734B1/de
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
    • F23D11/36—Details, e.g. burner cooling means, noise reduction means
    • F23D11/38—Nozzles; Cleaning devices therefor
    • F23D11/383—Nozzles; Cleaning devices therefor with swirl means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/14—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with multiple outlet openings; with strainers in or outside the outlet opening

Definitions

  • the invention relates to a nozzle for burners, for atomizing a combustible fluid entering it, with a nozzle housing in which a filter made of sintered material is arranged on the inlet side in the flow path of the fluid and a nozzle bore is arranged on the outlet side in the bottom of the nozzle housing, the latter in the cavity of the nozzle housing with a swirl body head is assigned, which is preceded by an annular channel for the radial supply of the fluid into the swirl body head, in which a wire filter is arranged.
  • Nozzles of this type are widely used in burners for all types of furnaces.
  • the nozzles are screwed into the burner nozzle assembly with their nozzle housing.
  • a fluid e.g. B. heating oil, supplied with pressure, where it, mostly with a twist, is injected finely atomized through the nozzle bore of the nozzle into the combustion chamber, where it mixes with the combustion air supplied in the vicinity and is ignited.
  • This filter which is usually a sintered filter in small nozzles, is arranged on the inlet side of the nozzle, so that only filtered fluid gets into the nozzle and to the nozzle bore.
  • the free passage of the filter for the nozzle can be chosen so large that clogging of the nozzle is avoided with certainty, which requires a passage width of about 70-100 ⁇ .
  • FR-A-2 377 003 shows an arrangement in which two filters of the same type are connected in series, but through which a blockage of the nozzle bore cannot be avoided either.
  • US-A-2 602 006 also describes a nozzle for burners, in which two filters are arranged in series, of which one filter is arranged in the immediate vicinity of the swirl head. Both filters are sieves, whereby the first filter through which the filter flows is referred to as the sieve sleeve and the subsequent filter as the secondary sieve.
  • the flow rate of the secondary sieve is longitudinal.
  • the passages are tortuous and smaller in cross section than the transverse passages of the primary screen.
  • DE-A-2 708 138 A similar arrangement is also shown in DE-A-2 708 138.
  • these filters have the same disadvantage as all nozzles in which two filters are connected in series and the secondary filter has smaller passage cross-sections than the primary filter. Since the secondary filter is located in a place where there is little space, the capacity of this filter is small. For this reason, it must be expected that the secondary filter will clog faster than the primary filter.
  • the invention is therefore based on the object of designing a nozzle of the type described in the introduction in such a way that blockages of the nozzle by those mentioned in the nozzle itself resulting particles can be avoided with the greatest security.
  • the wire filter is an annular protective body in the form of a foil made of sieve material with through openings, the free passage of the through openings of the foil made of sieve material being greater than the free passage of the filter made of sintered material.
  • the invention is shown in the drawing in one embodiment and described below.
  • the figure shows a longitudinal section through a burner nozzle with the subject matter of the invention.
  • the nozzle shown in the figure is a nozzle for heating oil, as used in burners. It has a nozzle housing 1 with a base 2, which contains a nozzle bore 3, and with a cylindrical part 4.
  • the nozzle housing 1 thus forms a hollow body in which the other parts of the nozzle are accommodated.
  • the nozzle housing 1 has an internal thread 5 and an external thread 6 at its free end; the latter serves to screw the nozzle into the nozzle assembly of the burner (not shown).
  • a swirl body 7 is mounted in the interior of the nozzle housing 1 and has a swirl body head 8 with swirl grooves 9 and a swirl body shaft 10.
  • the swirl head 8 has a conical shape and lies on the inside of the bottom 2 forming a cone.
  • the conical surface of the swirl head 8 and the cone of the bottom 2 form a complete seal, so that the fluid flowing through the nozzle only through the swirl grooves 9 the nozzle bore 3 can flow.
  • a mounting sleeve 11 with radial bores 12 is pushed onto the swirl body 10.
  • a mounting screw 13 which is screwed into the internal thread 5 of the nozzle housing 1 with an external thread 14, the swirl body 7 is pressed onto the cone of the base 2 via the mounting sleeve 11.
  • An axial bore 15 is arranged in the mounting screw 13.
  • a arranged on the mounting screw 13 pin 16 serves to allow screwing in of the mounting screw 13, for. B. by designing the pin 16 with cross recesses or another way of taking.
  • the internal thread 5 of the nozzle housing 1 is also used for screwing on a filter 17.
  • the filter 17 is mounted in a filter base 18 with a flange 19 and an external thread 20; the latter is screwed into the internal thread 5 of the nozzle housing 1.
  • a protective body 21 is arranged between the shoulder formed by the swirl body head 8 and the mounting sleeve 11.
  • the protective body 21 in no way has the function of carrying out an additional filtration of the inflowing fluid.
  • the through openings 22 should be at least as large as the through openings of the filter 17.
  • the through openings can also be somewhat larger than those of the filter 17, nevertheless they are able to remove any particles that are washed away by the filter or that during the Assembly, e.g. B. when screwing the parts together, or detach themselves during operation.
  • the protective body 21 is arranged as close as possible to the nozzle bore, so that the occurrence of particles between the protective body 21 and the nozzle bore 3 is not possible.
  • the protective body 21 is formed as a ring made of sieve material through which the fluid cleaned in the filter 17 passes, but is no longer subject to a filter effect due to the same size of the through openings 22.
  • the protective body 21 does not have the task of filtering the already filtered fluid again, but rather to hold back other particles which are produced in the filter 17 or in the nozzle housing 1.
  • the protective body 21 surprisingly succeeds in ensuring that the operation of nozzles with small passage cross-sections is practically trouble-free.
  • the fluid flowing through the filter 17 passes via the axial bore 15 of the mounting screw 13 into a space 23 surrounded by the mounting sleeve 11 and from there into an annular channel 24 in which the protective body 21 is arranged in the immediate vicinity of the nozzle bore 3. Any particles accumulating in the filter and in the flow path of the fluid are retained in the protective body 21, so that clogging of the swirl grooves 9 or the nozzle bore 3 is practically impossible.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Nozzles For Spraying Of Liquid Fuel (AREA)
  • Nozzles (AREA)
  • Processes For Solid Components From Exhaust (AREA)
  • Pressure-Spray And Ultrasonic-Wave- Spray Burners (AREA)
  • Gas Burners (AREA)
EP81901912A 1980-07-10 1981-07-07 Düse für brenner Expired EP0055734B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH530580A CH648918A5 (no) 1980-07-10 1980-07-10
CH5305/80 1980-07-10

Publications (2)

Publication Number Publication Date
EP0055734A1 EP0055734A1 (de) 1982-07-14
EP0055734B1 true EP0055734B1 (de) 1985-05-29

Family

ID=4291363

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81901912A Expired EP0055734B1 (de) 1980-07-10 1981-07-07 Düse für brenner

Country Status (10)

Country Link
US (1) US4438882A (no)
EP (1) EP0055734B1 (no)
CH (1) CH648918A5 (no)
DE (1) DE3152218D2 (no)
DK (1) DK102482A (no)
FI (1) FI71612C (no)
GB (1) GB2091595A (no)
NO (1) NO152881C (no)
SE (1) SE438030B (no)
WO (1) WO1982000333A1 (no)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3901033A1 (de) * 1989-01-14 1990-07-19 Danfoss As Filter, insbesondere zur sekundaerfiltration von heizoel

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4613079A (en) * 1984-10-25 1986-09-23 Parker-Hannifin Corporation Fuel nozzle with disc filter
US5454788A (en) * 1991-04-24 1995-10-03 Baxter International Inc. Exchangeable integrated-wire balloon catheter
JP2939893B2 (ja) * 1991-04-24 1999-08-25 バクスター インターナショナル インコーポレーテッド 交換可能な一体式−ワイヤーバルーンカテーテル
DE4209152A1 (de) * 1991-10-28 1993-04-29 Jacques Roth Oelbrennerduese
JP2922489B1 (ja) * 1998-02-13 1999-07-26 三菱電機株式会社 ピストン式高圧燃料ポンプのフィルタ
US6132203A (en) * 1998-11-05 2000-10-17 Masin; Radek Method and apparatus for burning oils of varying viscosity
GB9919284D0 (en) * 1999-08-17 1999-10-20 Minnovation Ltd Water spray nozzle
CN108940626A (zh) * 2018-09-05 2018-12-07 红塔烟草(集团)有限责任公司 一种喷嘴防溢漏装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE197808C (no) *
GB209830A (en) * 1922-10-18 1924-01-18 Alexander Siciliano Junior Improvements in and connected with pressure oil burners
US2602006A (en) * 1950-11-01 1952-07-01 Fahrbach William Fuel screening discharge nozzle for oil burners
US3065918A (en) * 1959-11-03 1962-11-27 Stewart Warner Corp High pressure paint spray gun
FR1537381A (fr) * 1967-09-19 1968-08-23 Redi Fire Heating Système de chauffage d'importants volumes d'air
DE2447151C3 (de) * 1974-10-03 1979-04-19 Smit Nijmegen B.V., Nijmegen (Niederlande) Brenner zur Verbrennung von flüssigem Brennstoff
SE413693B (sv) * 1977-01-07 1980-06-16 Bjoerklund Curt Arnold Brennarmunstycke
DE2708138A1 (de) * 1977-02-25 1978-08-31 Reichstein Manfred Oelbrenner-duese
CH640335A5 (de) * 1979-01-15 1983-12-30 Straumann Inst Ag Brennerduese und verfahren zu deren herstellung.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3901033A1 (de) * 1989-01-14 1990-07-19 Danfoss As Filter, insbesondere zur sekundaerfiltration von heizoel

Also Published As

Publication number Publication date
FI71612B (fi) 1986-10-10
CH648918A5 (no) 1985-04-15
FI820665L (fi) 1982-02-25
NO152881B (no) 1985-08-26
EP0055734A1 (de) 1982-07-14
WO1982000333A1 (en) 1982-02-04
FI71612C (fi) 1987-01-19
DE3152218D2 (en) 1982-08-26
US4438882A (en) 1984-03-27
SE438030B (sv) 1985-03-25
NO152881C (no) 1985-12-04
SE8201477L (sv) 1982-03-10
GB2091595A (en) 1982-08-04
DK102482A (da) 1982-03-09
NO820723L (no) 1982-03-08

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