EP0314629B1 - Buse rotative - Google Patents

Buse rotative Download PDF

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Publication number
EP0314629B1
EP0314629B1 EP19880810735 EP88810735A EP0314629B1 EP 0314629 B1 EP0314629 B1 EP 0314629B1 EP 19880810735 EP19880810735 EP 19880810735 EP 88810735 A EP88810735 A EP 88810735A EP 0314629 B1 EP0314629 B1 EP 0314629B1
Authority
EP
European Patent Office
Prior art keywords
nozzle according
rotary
rotary nozzle
outlet
rotary part
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
EP19880810735
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0314629A3 (en
EP0314629A2 (fr
Inventor
Marcel Leisi
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.)
EXITFLEX SA
Original Assignee
EXITFLEX SA
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
Priority claimed from CH418287A external-priority patent/CH673095A5/fr
Priority claimed from CH3117/88A external-priority patent/CH677326A5/fr
Application filed by EXITFLEX SA filed Critical EXITFLEX SA
Priority to AT88810735T priority Critical patent/ATE78723T1/de
Publication of EP0314629A2 publication Critical patent/EP0314629A2/fr
Publication of EP0314629A3 publication Critical patent/EP0314629A3/fr
Application granted granted Critical
Publication of EP0314629B1 publication Critical patent/EP0314629B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
    • B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
    • B05B3/04—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet
    • B05B3/06—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet by jet reaction

Definitions

  • the present invention is in the field of spraying a fluid and more particularly relates to a rotary nozzle.
  • Rotary nozzles are already known which are arranged at the end of a pipe for supplying a pressurized fluid and which make it possible to spray the latter.
  • nozzles have been developed more particularly intended for cleaning and for the internal coating of pipes.
  • a device of generally cylindrical shape comprising channels for supplying air under pressure and the fluid to be distributed leading to nozzles opening onto the walls so that the air projected keeps the body self-supporting inside a pipe.
  • the nozzles open obliquely to the body to project the air backwards, so that the body tends to advance by reaction, at the same time that it is self-supported by the projected jets.
  • This device comprises two rotary rings in which are made the nozzles which are not only inclined backwards, but also inclined with respect to spokes, the inclination of the nozzles of the two rings with respect to the spokes being opposite to obtain their rotation in reverse directions.
  • European patent EP-A-0.077.562 proposes a turbine whose rotor has reaction nozzles directed towards the rear to ensure the advance of the turbine and inclined radially to give the rotor its rotational movement, as well as nozzles cleaning tools, oriented perpendicularly to the wall of the tube. It is proposed in particular to brake the movement of the rotor by additional braking nozzles opposite the reaction nozzles.
  • the present invention provides a particularly simple rotary nozzle, both from the point of view of the number of its components and their ease of manufacture. It relates to a rotary nozzle for distributing a fluid under pressure in a pipe, comprising a body of generally cylindrical shape provided with a nozzle and having an internal channel for supplying the fluid, a part mounted in rotation on a shaft. hollow and having at least one nozzle capable of ensuring rotation of said part when the fluid passes, and a plug disposed at the end of the cylindrical body and retaining at least indirectly the rotary part relative to the cylindrical body.
  • said nozzle opens internally into an annular recess cooperating on the other hand with at least one passage towards the internal channel inclined radially with respect to said channel so as to create a circulation of the fluid in opposite direction to the movement of the rotating part.
  • the rotary part of this nozzle further has at least two asymmetrical lateral nozzles arranged to produce two separate scanning rings. Thanks to this double scanning ring, a better distribution of the sprayed fluid is obtained and, moreover, when the nozzle encounters an obstacle, the asymmetry of the assembly gives the nozzle a pivoting movement. It should be noted that this movement is favored by the rounded shape of the front part of the nozzle.
  • annular recess is, according to the variants, made in the outer wall of the rotary part or in the internal wall of the part constituting the rotation shaft.
  • the radially inclined passage formed in the hollow shaft is produced either in the end part of the cylindrical body, or in a sleeve integral with the plug.
  • Figure 1 is an overview of the main components, seen laterally in half upper and presented in section in the lower half, in a first variant of a rotary part with two nozzles and of a central body having nozzles directed towards the rear to ensure the advancement of the nozzle.
  • Figure 2 is a cross section along II-II in Figure 1.
  • FIGS. 3 is a partial view of a variant of FIG. 1, in which the rotary element has a single nozzle while the central body does not have any advance nozzles.
  • Figure 4 is a partial view of another variant of Figure 1, wherein the rotary member has two nozzles while the central body does not have advance nozzles.
  • Figure 5 shows another embodiment in which the plug and the rotating part are seen laterally in the upper half and presented in section in the lower half.
  • FIG. 6 is a cross section along VI-VI in FIG. 5.
  • Figure 7 is a third embodiment of a nozzle seen laterally in the upper half and presented in section in the lower half.
  • Figure 8 is a cross section along VIII-VIII in Figure 7.
  • FIG. 9 is a longitudinal section of the rotary element alone, according to IX-IX in FIG. 8.
  • FIG. 10 is a longitudinal section of the rotary element alone, along X-X in FIG. 8.
  • the rotary spray nozzle mainly consists of a hollow central body 1, of generally cylindrical shape. At one end of the central body 1 is fixed a rotary part 2, rotating around a hollow shaft 3 and held by means of a plug 4. The opposite end of the central body 1 receives a pipe 5 for supplying fluid, held by a clamp 6.
  • the hollow main body 1 comprises an internal channel 11 and its end portion 12 comprises an external thread 13 intended to receive the hollow shaft 3, which has come from manufacture with the screwed plug 4, in the variants of FIGS. 1 to 4.
  • the hollow body 1 comprises a shoulder 14 intended to constitute a bearing for rotation of the rotary part 2.
  • the central body 1 has, in the variant of FIG. 1, nozzles 15 directed towards the rear and opening into an annular clearance 16 practiced in the body 1.
  • the nozzles 15 are three in number and are inclined by about 45 ° relative to the plane transverse to the axis of the assembly.
  • the central body 1 still has inclined grooves 17 on the outside intended for attachment to the fluid supply duct 5, by means of a clamp 6 internally having grooves 61 intended to cooperate with the inclined grooves 17.
  • a clamp 6 internally having grooves 61 intended to cooperate with the inclined grooves 17.
  • gripping means constituted for example by external grooves 62. It would also be possible to provide flats intended to cooperate with a corresponding wrench.
  • the rotary part 2 is constituted by a cylindrical element, internally having an annular recess 21 at two nozzles 22 preferably arranged with an inclination of 8 ° relative to the plane transverse to the axis of the nozzle.
  • the end walls of the cylindrical element 2 are arranged between the shoulder 14 of the hollow body 1 and a flange 41 of the plug 4.
  • the plug 4 in the embodiments shown in Figures 1 to 5 came from manufacturing with the hollow cylindrical shaft 3, the end of which has an internal thread 31 intended to cooperate with the external thread 13 of the end part 12 of the hollow body 1.
  • the wall of the cylindrical sleeve 3, at a central opening 32, has two symmetrical passages 33.
  • the front part of the plug is rounded, to facilitate advancement in the pipe, and has a central slot 42 capable of receiving a screwdriver.
  • the inclined nozzles 22 made in the rotary part 2 as well as the passages 33 are symmetrically offset by relative to the vertical axis 34 of Figure 2, so that they are inclined radially relative to the channel, for reasons which will be explained later.
  • the dimensions of the elements described are approximately the following:
  • the nozzle according to the invention has been particularly studied to be produced in dimensions such that the maximum diameter of the assembly remains less than 12.7 mm.
  • a spray nozzle having a single nozzle 23 making an angle of 30 ° rearwardly relative to the plane transverse to the axis of the nozzle. It should be noted that in this variant, the nozzles 15 directed towards the rear are eliminated.
  • the fluid ejected by the nozzle 23 is used both for spraying the pipe and for advancing the assembly.
  • a rotary part 2 of 8 mm in diameter it will be chosen to make the single nozzle 23 with a diameter of 1.5 to 2 mm (preferably 1.8 mm) and to center it from 1 to 2 mm.
  • FIG. 3 there is also shown a squeegee 24 intended to act on the inner wall of the pipe to be cleaned.
  • the squeegee 24 can be constituted by a metal blade, inserted into a longitudinal slot 25 shown in FIG. 2. It could also be provided to replace the squeegee 24 by a fin disposed helically on the rotary part 2.
  • FIG. 4 there is also a nozzle not comprising the nozzles 15 towards the rear as in FIG. 1.
  • the rotary part 2 here has two passages: a nozzle 26 directed towards the front and forming an angle approximately 15 ° relative to the plane transverse to the axis of the nozzle, as well as a nozzle 27 directed towards the rear and making an angle of the order of 45 ° to 60 ° relative to this same plane.
  • annular groove 35 formed in the cylindrical sleeve 3 replaces the annular recess 21 of the rotary part 2.
  • the annular recess is formed outside of the cylindrical sleeve 3 or inside the rotary part 2, its dimensions will be such that it cooperates on the one hand with the passages 33 and on the other hand with the nozzles 22, 23 or 27.
  • the recesses shown in Figures 1 to 4 have a rectangular shape in section, but it is obvious that any other shape, rounded or trapezoidal for example, is possible, as will be seen below.
  • the hollow shaft 3 secured to the plug 4 is intended to be screwed inside the end part of the cylindrical body (not shown).
  • the wall of the hollow tree 3 comprises, as in the previous variants, two passages 33 symmetrically offset so that they are inclined radially relative to the channel.
  • the passages 33 open into the annular groove 35 formed outside of the sleeve 3.
  • the outer diameter of the rotating part 2 is greater than that of the plug 4 for reasons which will be given later.
  • the rotary part 2 has at least one longitudinal clearance 29.
  • the longitudinal clearance 29 makes it possible to create a squeegee 24 intended to act on the internal walls of the tube to be cleaned, which are scraped either by the cutting element 29A or by the strip 29B.
  • the various constituents shown in the drawing can be made of metal, for example steel, or any sufficiently rigid material. It may be advantageous to produce the rotary part in a harder material than the rest of the assembly or to provide a surface treatment, so as to reduce friction, in ways known to those skilled in the art.
  • the assembly of the rotary nozzle according to the invention is particularly simple since it suffices to have the rotary part 2 against the shoulder 14 and to screw the plug 4 to the end of the hollow body 1. This assembly is then placed at the end of the pipe 5 for supplying the fluid to be sprayed and is fixed by means of the clamping collar 6.
  • the end portion 12 of the main body 1 constitutes the previously mentioned hollow shaft 3, the front end of which comprises a thread 13 intended to receive a screw not shown in the drawing.
  • the opposite end of main body 1 includes a thread 18 intended to cooperate with a connector not shown in the drawing, placed at the end of the pipe for supplying the fluid to be sprayed, by clamping the assembly by means of an appropriate tool. engaging the dishes 19.
  • the rotary part 2 has, as previously, an annular recess 21 at two offset nozzles 22, one inclined towards the front and the other towards the rear relative to the plane transverse to the axis of the nozzle and shown at Figure 7 by arrows 22A and 22B respectively.
  • the annular recess 21 also opens into two facing nozzles 27, directed towards the rear, making an angle of 45 ° according to the arrow 27A of FIGS. 7 and 9.
  • each nozzle 27 opens outwardly into an exterior clearance 270, intended for the outlet of the reaction jet perpendicular to the exterior surface of said clearance. Provision can be made for external clearance 270 by means of an annular cutout.
  • the annular plug 4 has on the one hand a shoulder 41 intended to form a bearing for the rotary part 2 and on the other hand a face with a rounded edge 44 on the front of the nozzle. It further comprises a central opening 45 having a conical opening 46 intended to receive the head of a connecting screw not shown in the drawing which is inserted into the thread 13 of the main body.

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  • Nozzles (AREA)
EP19880810735 1987-10-26 1988-10-26 Buse rotative Expired - Lifetime EP0314629B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88810735T ATE78723T1 (de) 1987-10-26 1988-10-26 Rotierende duese.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CH4182/87 1987-10-26
CH418287A CH673095A5 (en) 1987-10-26 1987-10-26 Duct cleaner rotary spray nozzle
CH3117/88A CH677326A5 (en) 1988-08-22 1988-08-22 Rotary nozzle - has rotary section with outlets and inner annular recess to give controlled speed of rotation
CH3177/88 1988-08-22

Publications (3)

Publication Number Publication Date
EP0314629A2 EP0314629A2 (fr) 1989-05-03
EP0314629A3 EP0314629A3 (en) 1990-03-28
EP0314629B1 true EP0314629B1 (fr) 1992-07-29

Family

ID=25692224

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19880810735 Expired - Lifetime EP0314629B1 (fr) 1987-10-26 1988-10-26 Buse rotative

Country Status (4)

Country Link
EP (1) EP0314629B1 (enrdf_load_stackoverflow)
DE (1) DE3873261T2 (enrdf_load_stackoverflow)
ES (1) ES2034369T3 (enrdf_load_stackoverflow)
GR (1) GR3006022T3 (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013009708A1 (de) 2013-06-10 2014-12-11 Jt-Elektronik Gmbh Spülkopf für Abwasserkanäle und Zuführung von Medien
DE102013009967A1 (de) 2013-06-13 2014-12-18 Jt-Elektronik Gmbh Mehrfach-Spüldüse für Abwasserkanäle

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5141158A (en) * 1991-04-24 1992-08-25 Halliburton Company Eddy current braked spinning jet nozzle
DE102004036188B4 (de) * 2004-07-26 2006-06-08 Frank Zeitler Düsenkopf für Innensprühgeräte
US8544768B2 (en) 2009-11-10 2013-10-01 Stoneage, Inc. Self regulating fluid bearing high pressure rotary nozzle with balanced thrust force
CN107755112A (zh) * 2017-12-06 2018-03-06 南京科远自动化集团股份有限公司 一种全周清洗喷头
US11344930B2 (en) 2020-02-16 2022-05-31 LSQ Manufacturing, Inc. Self-centering conduit cleaning device with reduced axial length

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3125297A (en) * 1964-03-17 Rotary spray head
BE555695A (enrdf_load_stackoverflow) * 1956-06-05
DE1165945B (de) * 1960-02-01 1964-03-19 Hammelmann Paul Fa Duesenkopf mit Schlauchanschluss zur Rohrreinigung
FR2404474A1 (fr) * 1977-09-30 1979-04-27 Nordon & Cie Sa Dispositif de nettoyage de conduites
DE3141581A1 (de) * 1981-10-20 1983-05-05 Albrecht Wolhusen Wüthrich Rohrreinigungsgeraet fuer kanalisationsleitungen
DE3428133A1 (de) * 1983-06-24 1986-02-13 Werner Dr.med. 4330 Mülheim Schubert Reinigungskopf fuer rohrreinigungsgeraet zur beseitigung von harten inkrustierungen in leitungen

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013009708A1 (de) 2013-06-10 2014-12-11 Jt-Elektronik Gmbh Spülkopf für Abwasserkanäle und Zuführung von Medien
DE102013009708B4 (de) * 2013-06-10 2018-01-11 Jt-Elektronik Gmbh Spülkopf für Abwasserkanäle und Zuführung von Medien
DE102013009967A1 (de) 2013-06-13 2014-12-18 Jt-Elektronik Gmbh Mehrfach-Spüldüse für Abwasserkanäle

Also Published As

Publication number Publication date
GR3006022T3 (enrdf_load_stackoverflow) 1993-06-21
DE3873261D1 (de) 1992-09-03
ES2034369T3 (es) 1993-04-01
DE3873261T2 (de) 1992-12-03
EP0314629A3 (en) 1990-03-28
EP0314629A2 (fr) 1989-05-03

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