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EP0742053A1 - Buse hydrodynamique pour le nettoyage de tuyaux et de canalisations - Google Patents

Buse hydrodynamique pour le nettoyage de tuyaux et de canalisations Download PDF

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Publication number
EP0742053A1
EP0742053A1 EP96107047A EP96107047A EP0742053A1 EP 0742053 A1 EP0742053 A1 EP 0742053A1 EP 96107047 A EP96107047 A EP 96107047A EP 96107047 A EP96107047 A EP 96107047A EP 0742053 A1 EP0742053 A1 EP 0742053A1
Authority
EP
European Patent Office
Prior art keywords
radius
inlet opening
nozzle according
hydrodynamic
water inlet
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
EP96107047A
Other languages
German (de)
English (en)
Other versions
EP0742053B1 (fr
Inventor
Kurt Hörger
Hans Prof. Dr. Lutze
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.)
Keg Kommunaler Bedarf Technischer Handel Beratungverkauf GmbH
Original Assignee
Keg Kommunaler Bedarf Technischer Handel Beratungverkauf 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7761321&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0742053(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Keg Kommunaler Bedarf Technischer Handel Beratungverkauf GmbH filed Critical Keg Kommunaler Bedarf Technischer Handel Beratungverkauf GmbH
Publication of EP0742053A1 publication Critical patent/EP0742053A1/fr
Application granted granted Critical
Publication of EP0742053B1 publication Critical patent/EP0742053B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027—Cleaning the internal surfaces; Removal of blockages
    • B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
    • B08B9/049—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes having self-contained propelling means for moving the cleaning devices along the pipes, i.e. self-propelled
    • B08B9/0495—Nozzles propelled by fluid jets
    • 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
    • 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
    • B05B1/26—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets
    • B05B1/262—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets with fixed deflectors
    • B05B1/265—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means with means for mechanically breaking-up or deflecting the jet after discharge, e.g. with fixed deflectors; Breaking-up the discharged liquid or other fluent material by impinging jets with fixed deflectors the liquid or other fluent material being symmetrically deflected about the axis of the nozzle

Definitions

  • the invention relates to a hydrodynamic nozzle for cleaning pipes and channels according to the preamble of the first claim.
  • Numerous sewer cleaning nozzles are already known which have a water connection as a pressurized water inlet opening and associated recoil openings connected to the rear. Due to the recoil force of the water, the nozzle experiences a feed movement in the pipe or channel.
  • DE G 92 14 268.8 describes such a nozzle body made of solid material.
  • the connection between the water connection and the water outlets (recoil openings) takes place via a first hole that leads obliquely outwards into the nozzle body from the water connection and a second hole that leads obliquely inwards from the water outlet, which extends as far as the first hole and is connected to it .
  • the apex areas of the holes are rounded off to avoid turbulence.
  • the water connection has a conical bottom of the bore, the cone being open in the direction of the hose connection.
  • the first holes are drilled in the bottom of the hole.
  • the decisive disadvantage of this design is that the water hits the bottom of the water connection, causing turbulence and loss of performance.
  • Another disadvantage is that the two connecting bores meet at an acute angle.
  • a nozzle which is already somewhat improved in terms of flow technology is described in WO 85/05295.
  • the Connection channels between the pressurized water inlet opening and the recoil opening have a relatively large radius.
  • FIG. 2 shows such a nozzle, which has a conical water divider in the center of the hose connection, to which the radius adjoins.
  • the cavity in the nozzle widens relatively sharply, so that an annular baffle is formed in the direction of the recoil openings.
  • the outflow openings lead from the baffle in the cavity to the outside in the radiation angle.
  • Nozzles are inserted into the outflow openings and have a conical widening of the inner diameter in the direction of the cavity.
  • the impact of the liquid flow on the baffle creates a discontinuous cross-sectional constriction, which already reduces the efficiency to approx. 70%.
  • there is the pressure and form resistance of the baffle plate which leads to a further considerable reduction in efficiency, the greatest resistance value of a circular plate being used in the present case. This unfavorable fluidic design weakens the axial pressure of the emerging water jet and thus reduces the cleaning effect.
  • the object of the invention is to develop a hydrodynamic nozzle for cleaning pipes and channels, which ensures the highest possible efficiency and thus an optimal cleaning power and has a simple construction.
  • the sewer cleaning nozzle consists of a nozzle body with a connection for one Water hose as a pressurized water inlet opening.
  • the pressurized water outlet openings are arranged on the same or different pitch circles and connected to the pressurized water inlet opening via channels.
  • the channels are inclined at a defined angle to the axis of the nozzle body.
  • a distribution cavity adjoins the pressurized water inlet opening, into which the channels connected to the pressurized water outlet openings open.
  • a conical water divider with a defined cone angle is arranged centrally to the axis of the nozzle body, the cone tip of the water divider being directed towards the pressurized water inlet opening.
  • a defined, substantially semicircular radius adjoins the cone bottom of the water divider, the curvature of which is opposite to the pressurized water inlet opening.
  • Each channel opens into the distribution cavity in such a way that the outermost line of the outside diameter of the channel lies tangentially to the radius or merges into the radius.
  • the pressurized water inlet opening has a radius which increases the diameter in the direction of the distribution cavity and which has the same direction of curvature as the radius which adjoins the water divider.
  • each channel is funnel-shaped at the end that opens into the distribution cavity.
  • the opening angle of the funnel is preferably 45 to 90 °.
  • the nozzle body is of divided design. The division level is for nozzles with relatively large dimensions in the area of the distribution cavity in the center of the radius and perpendicular to the axis of the nozzle body. Nozzles of smaller dimensions can have the parting plane in the region of the distribution cavity at the center of the radius and parallel to the axis of the nozzle body.
  • a central axial through bore is conventionally arranged from the distribution cavity to the end of the nozzle body, which lies opposite the pressurized water outlet openings.
  • this through hole has a funnel-shaped diameter widening at its end in the water divider in the direction of the distribution cavity.
  • the opening angle of the funnel of the through hole is preferably 20 to 90 °.
  • a funnel-shaped supply of the flow medium from the pressure water inlet opening to the channels is achieved in particular by the tangential abutment of the channels on the radius that adjoins the funnel and by the gradual radius-shaped widening of the pressure water inlet opening.
  • the fluidic behavior is further improved by the funnel-shaped widening of the diameter of the channels in the direction of the distribution cavity.
  • the efficiency of the hydrodynamic nozzle according to the invention can be surprisingly increased compared to conventional sewer cleaning nozzles of the same type.
  • FIGS. 1, 2 and 3 A hydrodynamic nozzle with a total of 8 outlet openings and a divided nozzle body 1 is shown in FIGS. 1, 2 and 3.
  • the nozzle body 1 consists of an upper part 2 and a lower part 3, the pressurized water inlet opening 4 being arranged in the form of the hose connection in the upper part.
  • a total of 8 pressurized water outlet openings 5a and 5b are provided, alternately lying on different pitch circles T1 and T2, at an angle of 45 °.
  • the pressurized water outlet openings 5a which lie on the inner pitch circle T1, have a smaller radiation angle ⁇ than the pressurized water outlet openings 5b on the outer pitch circle T2.
  • 1 shows the longitudinal section in the region of the pressurized water outlet openings 5a with the radiation angle ⁇ 1 and in FIG.
  • a distribution cavity 6 is formed at the connection to the pressurized water inlet opening.
  • the pressurized water outlet openings 5a and 5b are connected to the pressurized water inlet opening 4 via channels 6a and 6b, which open into the distribution cavity 7.
  • a conical water divider 8 is arranged, the cone tip of which points towards the pressurized water inlet opening 4.
  • a radius r1 is provided from the bottom of the water divider 8 to the outermost point of the diameter d1 of the channels 6.
  • the channels 6a and 6b are tangential to this radius r1 with the outermost point of their diameter d1.
  • the angle of inclination in comparison to the axis M of the nozzle body 1 corresponds to ⁇ 1 for the channels 6a which are connected to the outlet openings 5a and to ⁇ 2 for the channels 6b which are connected to the outlet openings 5b.
  • the pressure water inlet opening 4 widens at its end in the direction of the distribution cavity 7 in a radius r2, which has the same direction of curvature as the radius r1 at the base of the distribution cavity 7. Both radii r1 and r2 are connected to one another via a further radius r3, which has an opposite direction of curvature to the radii r1 and r2. 3 shows the top view of the nozzle according to FIGS. 1 and 2.
  • the pressurized water outlet openings 5a and 5b lie on different pitch circles T1 and T2.
  • Fig. 4 the upper part 2 and the lower part 3 of the nozzle is shown in a separate state.
  • the section plane was placed along the line AA in Fig. 3a.
  • the nozzle was divided at the center of the radius r1.
  • the connection of the two nozzle halves 2 and 3 takes place via a thread 9.
  • the lower thread part is screwed into the upper nozzle part for assembly.
  • Radii r1 and the water divider 8 are arranged, the water divider protruding into the upper nozzle part in the assembled state.
  • the pressurized water inlet opening 4 which has the radius r2 at its end in the direction of the nozzle interior and then has the radius r3.
  • This split nozzle design has significant manufacturing advantages and is easy to manufacture.
  • upper part 2 and lower part 3 should advantageously be manufactured first and, after their joining, the channels 6a and 6b and the pressurized water outlet openings 5a and 5b should be introduced.
  • Another advantage of the split nozzle design is that it can be easily disassembled and cleaned when dirty.
  • the water divider 8 and the radii r1 are provided with a coating B, which reduces the coefficient of resistance.
  • FIG. 5 again shows a sectional view of the upper part 2 of the nozzle with channels 6a and pressurized water outlet openings 5a.
  • the pressurized water inlet opening additionally has a conical extension 10 in front of the radius r2.
  • Fig. 6 shows a view acc. 5 from the direction of the lower nozzle part 3.
  • the channels 5a and 5b advantageously have a funnel-shaped widening 11 at their end, which is opposite each other to the pressurized water outlet opening 6a and 6b.
  • FIG. 7 A section and a development along the line X in FIGS. 5 and 6 is shown in FIG. 7.
  • the funnel-shaped extensions 11 of the channels 5a and 5b merge into one another.
  • This funnel-shaped extension 11 preferably has an opening angle ⁇ 1 of 90 °.
  • this bore 12 also has a funnel-shaped extension 13 at its end in the direction of the distribution cavity 7.
  • the opening angle ⁇ 2 is preferably 30 °.
  • the two nozzle halves can also be connected to one another in a detachable or non-detachable manner by other known joining methods.
  • the detachable connection as already described, has the advantage of being easier to clean.
  • detachably divided nozzles can be regenerated in the event of any damage in the interior of the nozzle (distribution cavity 7), so that their service life is extended many times over. In continuation of this idea, it is still possible, according to Fig.
  • the lower part 3 has a shaped element 14 which forms the water divider 8 and the radius r1 and is made of wear-resistant and resistance-reducing material.
  • the shaped element 14 is preferably releasably inserted into the lower part, so that it is at Wear can be replaced, and is in particular, as shown schematically, locked with connecting element 15 by screwing and pinning.
  • the shaped element 14 can also be divided into a plurality of chambers 16 in the form of a segment (FIG. 11 a), the number of the chambers 16 should correspond to the number of pressurized water outlet openings 5.
  • 11b and 11c show the representation of two chamber segments with different shapes along the line X in FIG. 11a. 11b, the chambers 16 are also semicircular in cross section with a radius rk. Another variant is that the chambers 16 have flanks 17 with a defined opening angle ⁇ K and a radius rK2 in the base (FIG. 11c) in order to ensure optimal fluidic behavior of the liquid jet.
  • the number of pressurized water outlet openings 5 (or 5a and 5b) is determined in accordance with the desired requirement profile, and their radiation angle ⁇ can also be the same, so that they lie on a common pitch circle T. 6 or more pressurized water outlet openings are usually selected.
  • the radiation angle ⁇ can be between 5 ° and 40 °.
  • the radii r1, r2 and r3 the dimensions of the water divider 8 and the distance L from the center of the radius r1, from the start of the nozzle on the side of the hose connection, are defined determine.
  • the continuous flow area is extended or the axial pressure PK in the area of the core zone (K) and the Axial pressure PH in the main area (H) increased (Fig. 12).
  • D1 is the nozzle diameter.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles (AREA)
EP96107047A 1995-05-11 1996-05-04 Buse hydrodynamique pour le nettoyage de tuyaux et de canalisations Expired - Lifetime EP0742053B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19516780 1995-05-11
DE19516780A DE19516780C1 (de) 1995-05-11 1995-05-11 Hydrodynamische Düse für die Reinigung von Rohren und Kanälen

Publications (2)

Publication Number Publication Date
EP0742053A1 true EP0742053A1 (fr) 1996-11-13
EP0742053B1 EP0742053B1 (fr) 1999-08-18

Family

ID=7761321

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96107047A Expired - Lifetime EP0742053B1 (fr) 1995-05-11 1996-05-04 Buse hydrodynamique pour le nettoyage de tuyaux et de canalisations

Country Status (4)

Country Link
US (1) US5992432A (fr)
EP (1) EP0742053B1 (fr)
DE (2) DE19516780C1 (fr)
WO (1) WO1996035523A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101376125B (zh) * 2007-08-31 2013-03-20 Bl咨询博拉松公司 液力喷嘴
CN110206132A (zh) * 2019-05-06 2019-09-06 常州市捷甲非开挖管道技术有限公司 一种城市地下管道清淤专用喷头

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19533654C2 (de) * 1995-09-12 1997-12-04 Kurt Hoerger Hydrodynamisches Werkzeug zur Reinigung von Rohren und Kanälen
EP0841101B1 (fr) * 1996-11-07 2001-08-01 Kurt Hörger Outil hydrodynamique pour le nettoyage de tuyaux et de canalisations
DE19805374C2 (de) 1998-02-11 2000-03-23 Richard Siedler Reinigungskörper für Rohrleitungen und Kanalisationssysteme
DE19915413B4 (de) * 1998-04-07 2014-08-07 Emilia Steinicke Düsenkörper für ein Reinigungsgerät
DE19913728C1 (de) * 1999-03-26 2000-10-26 Lufthansa Technik Ag Rohrreinigungsdüse
US7011158B2 (en) * 2003-09-05 2006-03-14 Jerry Wayne Noles, Jr., legal representative Method and apparatus for well bore cleaning
ES2355292T3 (es) * 2005-06-20 2011-03-24 Hammelmann Maschinenfabrik Gmbh Tobera y procedimiento para la mecanización de un espacio inferior de una pieza de trabajo.
RU2330732C2 (ru) * 2006-07-03 2008-08-10 Белорусский Национальный Технический Университет Устройство для очистки полости трубопроводов
US7559362B2 (en) * 2007-02-23 2009-07-14 Miner Daniel P Downhole flow reversal apparatus
DE202008006034U1 (de) 2008-05-02 2009-09-10 Simpfendörfer, Ulrich Düse für ein Reinigungsgerät
BRPI0908319A2 (pt) * 2008-05-07 2018-05-29 Hydrascan Ltd dispositivo para controlar o escoamento de fluido em um conduto e transportador
IES20090473A2 (en) * 2009-06-18 2011-01-05 Aidan Francis Mullane A sewer cleaning nozzle
RU2472596C1 (ru) * 2011-07-25 2013-01-20 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Ярославский государственный технический университет"(ФГБОУ ВПО "ЯГТУ") Импульсный роторный насадок
RU2494822C1 (ru) * 2012-03-27 2013-10-10 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Ярославский государственный технический университет" Роторный насадок
DE202012009908U1 (de) 2012-10-17 2014-01-20 USB-Düsen GmbH Düse für die Reinigung von Rohren und Kanälen
DE202012010204U1 (de) 2012-10-25 2014-01-30 USB-Düsen GmbH Düse für die Reinigung von Rohren und Kanälen
US11413665B2 (en) * 2018-08-02 2022-08-16 Shane D. Frost Commercial vacuum hose clearing apparatus
DE102019107292A1 (de) * 2019-03-21 2020-09-24 Ecoclean Gmbh Hochdruckwerkzeug und Verfahren zum Herstellen eines Hochdruckwerkzeugs
RU207193U1 (ru) * 2021-06-15 2021-10-15 Федеральное государственное бюджетное образовательное учреждение высшего образования "Ульяновский государственный аграрный университет имени П.А. Столыпина" Устройство для очистки вакуумированных молокопроводов доильных установок

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US1587194A (en) * 1925-07-23 1926-06-01 Sidney C Sladden Self-propelling hose nozzle
US1628070A (en) * 1926-05-12 1927-05-10 Sidney C Sladden Self-propelled hose nozzle
DE805209C (de) * 1949-11-03 1951-05-10 Otto Helm Strahlkopf zum Reinigen verstopfter oder verschlammter, auch zur Abloeschung brennender Rohrleitungen, Kanaele, Luttenrohre u. dgl.
US3807714A (en) * 1971-07-28 1974-04-30 Ludwig Ofag Indugas Gmbh Apparatus for the quenching of pipe
WO1985005295A1 (fr) * 1984-05-24 1985-12-05 Bo Larsson Buse hydrodynamique mobile pour le nettoyage a l'eau pressurisee de conduites d'eau, d'eaux superficielles et de decharge

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SE500894C2 (sv) * 1990-10-04 1994-09-26 Johan Faxon Förfarande och anordning för rengöring av rörledningar
CA2075089A1 (fr) * 1992-07-31 1994-02-01 Gerald Howard Lawther Appareil et methode permettant d'enlever des revetements interieurs non desires dans des tubes
DE9214268U1 (de) * 1992-10-22 1993-03-18 Steinicke, Emilia, 6477 Limeshain Düsenkörper für ein Reinigungsgerät für Kanäle und Rohre
SE9300645L (sv) * 1993-02-26 1994-08-27 Johan Faxon Förfarande och anordning för rengöring av rörledningar
US5535473A (en) * 1994-12-05 1996-07-16 Maniar; Mark A. Drain cleaning apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1587194A (en) * 1925-07-23 1926-06-01 Sidney C Sladden Self-propelling hose nozzle
US1628070A (en) * 1926-05-12 1927-05-10 Sidney C Sladden Self-propelled hose nozzle
DE805209C (de) * 1949-11-03 1951-05-10 Otto Helm Strahlkopf zum Reinigen verstopfter oder verschlammter, auch zur Abloeschung brennender Rohrleitungen, Kanaele, Luttenrohre u. dgl.
US3807714A (en) * 1971-07-28 1974-04-30 Ludwig Ofag Indugas Gmbh Apparatus for the quenching of pipe
WO1985005295A1 (fr) * 1984-05-24 1985-12-05 Bo Larsson Buse hydrodynamique mobile pour le nettoyage a l'eau pressurisee de conduites d'eau, d'eaux superficielles et de decharge

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101376125B (zh) * 2007-08-31 2013-03-20 Bl咨询博拉松公司 液力喷嘴
CN110206132A (zh) * 2019-05-06 2019-09-06 常州市捷甲非开挖管道技术有限公司 一种城市地下管道清淤专用喷头

Also Published As

Publication number Publication date
US5992432A (en) 1999-11-30
DE19516780C1 (de) 1996-08-08
DE59602768D1 (de) 1999-09-23
WO1996035523A1 (fr) 1996-11-14
EP0742053B1 (fr) 1999-08-18

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