WO1998020988A1 - Outil hydrodynamique pour le nettoyage de tuyaux et de canalisations - Google Patents

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

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Publication number
WO1998020988A1
WO1998020988A1 PCT/DE1996/002153 DE9602153W WO9820988A1 WO 1998020988 A1 WO1998020988 A1 WO 1998020988A1 DE 9602153 W DE9602153 W DE 9602153W WO 9820988 A1 WO9820988 A1 WO 9820988A1
Authority
WO
WIPO (PCT)
Prior art keywords
pressurized water
water
diameter
inlet opening
outlet openings
Prior art date
Application number
PCT/DE1996/002153
Other languages
German (de)
English (en)
Inventor
Kurt Hörger
Hans Lutze
Original Assignee
Hoerger Kurt
Hans Lutze
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 to DE19533654A priority Critical patent/DE19533654C2/de
Application filed by Hoerger Kurt, Hans Lutze filed Critical Hoerger Kurt
Priority to PCT/DE1996/002153 priority patent/WO1998020988A1/fr
Publication of WO1998020988A1 publication Critical patent/WO1998020988A1/fr
Priority to US09/111,697 priority patent/US6089243A/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F9/00—Arrangements or fixed installations methods or devices for cleaning or clearing sewer pipes, e.g. by flushing
    • 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
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B2209/00—Details of machines or methods for cleaning hollow articles
    • B08B2209/02—Details of apparatuses or methods for cleaning pipes or tubes
    • B08B2209/027—Details of apparatuses or methods for cleaning pipes or tubes for cleaning the internal surfaces
    • B08B2209/04—Details of apparatuses or methods for cleaning pipes or tubes for cleaning the internal surfaces using cleaning devices introduced into and moved along the pipes
    • B08B2209/045—Making cleaning devices buoyant within a pipeline to be cleaned

Definitions

  • the invention relates to a hydrodynamic tool for cleaning pipes and channels according to the preamble of the first claim.
  • These tools are designed as flow-through parts and can e.g. Sewer cleaning nozzles or sole cleaner.
  • FIG. 2 shows such a nozzle, which has a conical water divider in the center of the hose connection, to which the radius adjoins. From the hose connection, 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. Due to the impact of the liquid flow on the baffle surface, an unsteady cross-sectional constriction arises after the flow theory, which already considerably reduces the efficiency. In addition, there is the pressure and form resistance of the baffle plate, which leads to a further reduction in efficiency. This less than optimal fluidic design weakens the axial pressure of the emerging water jet and thus the cleaning effect. A significant improvement is achieved in contrast with the nozzle shown in Fig. 4. The water is led through channels (hoses) in a large radius to the pressurized water outlet openings.
  • the round surface on one side facilitates automatic re-erection.
  • Disadvantage of the sole cleaner is the unfavorable flow of water and the associated performance restrictions.
  • no sewer cleaning nozzles and sole cleaners are known, the weight of which can be adapted to the respective pump output.
  • the object of the invention is to develop a hydrodynamic tool for cleaning pipes and channels, which guarantees the highest possible efficiency and maximum cleaning power with minimal energy input, the weight of which can be varied according to the field of application and which guarantees a long service life.
  • the hydrodynamic tools are designed as flow-through parts and have a pressurized water inlet opening which is connected to the pressurized water outlet openings via water conduits.
  • the water channels from the hose connection (pressurized water inlet opening) to the pressurized water outlet openings are designed without a shoulder and have the largest possible radius.
  • the direction of curvature of the radius of the water channels is inclined against the pressurized water inlet opening.
  • the water channels slide smoothly onto the pressurized water inlet opening and partially merge into one another in this connection area.
  • Each water guide has a circular cross-section and begins at the pressure water inlet opening in such a way that it is centered on the innermost point of its diameter and with the outermost point of its diameter on the outside diameter of the pressure water inlet opening connects.
  • a conical water divider is formed in the area of the transition from the pressurized water inlet opening to the water guides, which has a segment-like subdivision due to the inventive connection of the water guides and their lateral surface.
  • the segments of the segments have the radius of the water channels.
  • the diameter of the pressurized water inlet opening tapers to the position at which the water guides connect.
  • the taper is preferably conical or funnel-shaped.
  • the water channels can have an enlarged diameter in their connection area to the pressurized water inlet opening, which tapers to the lowest point of the radius of curvature to the diameter which the water guide then has continuously up to the pressurized water outlet opening.
  • this is a continu- ous funnel-shaped feeding of the pressurized water inlet opening ⁇ is created for each water supply and pressurized water outlet opening.
  • the pressurized water outlet openings are inclined in the radiation angle ⁇ in comparison to the longitudinal axis of the hydrodynamic tool.
  • a thread is provided in the pressurized water outlet openings for screwing in reflex nozzles. If the reflex nozzles have a screw head, are - 6 -
  • depressions are arranged for lowering the head.
  • the water channels either merge with the end of the radius into the pressurized water outlet openings or lead from the end of the radius in a straight line and at an angle ⁇ to the Pressurized water outlet openings.
  • the water guides bind to the pressurized water outlet openings in such a way that no discontinuous changes in cross-section are formed after the jet nozzles have been screwed in.
  • the rectilinear area of the water guide or the pressurized water outlet opening is essentially tangential to the radius of the water guide.
  • a further cavity for the filling of fiber can be arranged in the tool.
  • This is provided with a closure option, preferably in the form of a bore, with a plug (in particular with a thread).
  • a closure option preferably in the form of a bore, with a plug (in particular with a thread). This makes it possible to vary the weight of the hydrodynamic tool according to the pump output.
  • the ballast room is arranged lying in the direction of movement before the water flow. It can be filled with fiber as needed, preferably Lead granulate, sand, water or a sand / water mixture can be used.
  • the hydrodynamic tools are preferably designed as cast parts, since their interior design can be produced in a technologically advantageous manner by casting.
  • the core of the casting is designed in the future geometry of the pressurized water inlet opening, the water channels and the pressurized water outlet openings. If an additional ballast space is required, an additional core is provided in the casting mold. Wall roughnesses of less than 10 ⁇ m to minimize the pipe friction value are guaranteed, for example, by using an investment casting process.
  • a rust-free cast alloy is preferably used as the material for the hydrodynamic tools.
  • Rust protection in other cast alloys can be achieved by rust protection paint or other types of coating, such as galvanizing. Due to the first complete elimination of discontinuous changes in cross-section and shape resistance with the new and elegant interior design of the tools, shock losses and turbulent flows are reduced to almost zero, the efficiency compared to conventional hydrodynamic tools in the form of sewer cleaning nozzles or sole cleaners of a similar design is significantly increased, and the flow technology Behavior significantly improved. The following advantages are still achieved:
  • FIG. 1 Top view of a sewer cleaning nozzle 1
  • Fig. 2 Sewer cleaning nozzle 1 in a sectional view along the line X acc. Fig. 1
  • Fig. 2a Detail (top view) of the distribution cone along the line Z acc. Fig. 2
  • Fig. 2b Perspective view of Fig. 2a.
  • 3 sewer cleaning nozzle 1 in a sectional view with additional cavity 7
  • FIG. 4 perspective view of a sole cleaner 10 4a: View of the sole cleaner 10 from the direction of the hose connection 14
  • FIG. 5 longitudinal section through the sole cleaner 10 acc.
  • FIG. 4 FIG. 6: Perspective representation of a core 17 for casting a sewer cleaning nozzle 1
  • Fig. 7 course of the axial pressure PK in the liquid jet
  • FIGS. 1 and 2 The view of a sewer cleaning nozzle 1 with a pressurized water inlet opening 2, which is connected to the eight pressurized water outlet openings 4 via eight water ducts 3, is shown in FIGS. 1 and 2.
  • Fig. 1 the plan view of the nozzle body and in Fig. 2 is a longitudinal section along the line X acc. Fig. 1 shown.
  • the eight water channels 3, which form the connection to the pressurized water outlet openings 4, are slidingly connected to the pressurized water inlet opening 2 with the hose connection 2 a .
  • the pressurized water outlet openings 4 have alternating different radiation angles ⁇ _ and ⁇ .2 and lie on different pitch circles T] _ and T2.
  • the number of pressurized water outlet openings 4 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 °. Depending on the nozzle dimensions (length and diameter) and the required radiation angle ⁇ , the deflection radius r of the water channels 3 must be selected.
  • the pressurized water inlet opening 2 has a relatively large thread for the hose connection 2 a , its diameter decreases conically up to the water ducts 3 up to the diameter dg.
  • the funnel-shaped reduction in diameter of the pressurized water inlet opening 2 and the subsequent tapering of the diameter d ⁇ i to the diameter d ⁇ 2 of the water ducts 3 must be designed in such a way that a continuous and steady reduction in cross-section is formed, thereby avoiding turbulence in the liquid jet.
  • the pressurized water outlet openings 4 with the larger beam angle a project further into the sewer cleaning nozzle 1 than the pressurized water outlet openings 4 with the smaller beam angle ⁇ _.
  • the water channels 3 pass into the pressure water outlet openings 4 with the larger radiation angle 0C2 in their radius r and lead to the pressure water outlet openings 4 with the smaller radiation angle a from the end of the radius r in a rectilinear region 3.G and at the angle ⁇ ⁇ .
  • the rectilinear area 3.G and the pressurized water outlet openings 4 with the radiation wave 0.2 connect tangentially to the radius r of the water channels 3.
  • the pressurized water outlet openings 4 advantageously have 5 recesses 4.1 and a thread 4.2 for screwing in radiation nozzles.
  • the sectional view shows a pressurized water outlet opening 4 with and one without a spray nozzle 5.
  • the water channels 3 bind to the pressure water outlet openings 4 indicate that no discontinuous changes in cross-section are formed, in particular after screwing in the radiation nozzles 5.
  • FIG. 3 Another advantage according to the invention is the arrangement of an additional cavity 7 in the sewer cleaning nozzle 1 (FIG. 3).
  • This cavity 7 lies in the direction of movement in front of the water ducts 3 and is closed at its end opposite the pressurized water inlet opening 2 with a screw plug 8 (shown schematically). Lead granulate, sand, water or a sand / water mixture can be filled into this cavity.
  • the channel cleaning nozzle 1 in Fig. 3 has a relatively small pressurized water inlet opening 2 with hose connection 2 a in the form of a thread and also tapers to the beginning of the water channels 3.
  • a sole cleaner 10 is shown in perspective.
  • the base body 11 of the sole cleaner 10 has skid-shaped elements 12 arranged parallel to one another on both sides.
  • the main body 11 contains the pressurized water inlet opening 2, the water guides 3 and the pressurized water outlet openings 4.
  • the pressurized water inlet opening 2 is connected to the pressurized water outlet openings 4 via the water guides 3.
  • the water ducts 3 slide on the pressurized water inlet opening 2 and partially merge into one another in this area.
  • Two roll bars 13 ensure the self-erecting of the sole cleaner 10 when it is turned over.
  • a tubular bent hose connection 14 leads to the end of the sole cleaner 10, at which the pressurized water outlet openings 4 are located.
  • This hose connection 14 is detachably or non-releasably connected to the base body 13 in the region of the pressurized water inlet opening 2.
  • the releasable connection can be ensured by a union nut which is screwed to the base body 13.
  • the permanent connection is preferably made by welding, with the hose connection 14 additionally being welded to the base body 13 at its other end.
  • the pressurized water outlet openings 4 are not arranged on partial circles as in the case of the sewer cleaning nozzle 1, but lie in rows and in two planes E1 and E2 (see FIG. 4a). 4 pressurized water outlet openings are provided in each level El and E2.
  • the pressurized water inlet openings 3 of the levels E1 and E2 are arranged offset to one another.
  • the radiation angles ⁇ are directed towards the sole and at the same time directed outwards from the vertical center line M.
  • the pressurized water outlet openings can be varied in quantity according to the requirement profile.
  • FIG. 5 A longitudinal section of the sole cleaner 10 is shown in FIG. 5.
  • This cavity 7 can also, as described above, be filled with ballast material 16.
  • the duct cleaning nozzle 1 and the base body 11 of the sole cleaner 10 are preferably produced by casting, since this method is the technologically most advantageous variant for producing the tools.
  • the rust protection can be ensured by a surface protection such as rust protection paint or galvanizing or by using a rust-free cast alloy. With the use of an investment casting process, it is possible to reduce the wall roughness to less than 10 ⁇ m, so that the number of pipe friction is minimized.
  • 6 shows the core 17 of a casting mold for the water guide 3 of the sewer cleaning nozzle 1.
  • the pressurized water outlet openings 4 and the water ⁇ guides 3 are arranged in a circle, the water guides 3 converge in a star shape in the center of the pressurized water inlet opening 2 and slide into it, the water guides 3 partially interlocking.
  • the water channels 3 close in a deflection radius r whose direction of curvature and size is selected so that the lowest possible resistance is created in terms of flow.
  • the core of the sole cleaners is designed analogously, however, the areas for the pressurized water inlet opening 2, the water guides 3 and the pressurized water outlet openings 4 are arranged in relation to one another in the manner required by the future design of the base body (pressurized water outlet openings not circular but in several planes, other radiation angles, etc.) .
  • This inventive connection of the water ducts 3 to the pressurized water inlet opening 2, their large deflection radius r and the continuous transition to the pressurized water outlet openings 4 extend the continuous flow area or increase the axial pressure PK in the area of the core zone K and the axial pressure PH in the main area H ( Fig. 7).
  • the cleaning effect of the hydrodynamic tools according to the invention is significantly improved compared to conventional sewer cleaning nozzles or sole cleaners of a similar design.

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  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Mechanical Engineering (AREA)
  • Nozzles (AREA)

Abstract

La présente invention concerne un outil hydrodynamique pour le nettoyage de tuyaux et de canalisations présentant un raccord (2a) de flexible utilisé aux fins de l'introduction (2) d'eau sous pression ainsi que des orifices d'évacuation (4) de l'eau sous pression, aménagés sur le côté du raccord de flexible, où l'orifice d'admission de l'eau sous pression (2) est connecté avec les orifices d'évacuation (4) par des conduites (3) se présentant sous forme de canalisations de section circulaire, des buses à dispersion (5) pouvant être vissées dans les orifices d'évacuation (4). Selon l'invention, les conduites d'eau (3) ont le plus grand rayon de braquage (r) possible, se raccordent par glissement à l'orifice d'admission (2) et communiquent en partie les unes avec les autres. Au moins deux conduites (3) sont en appui avec le point le plus intérieur de leur diamètre (dW1) sur le point central (M), et avec le point le plus extérieur de leur diamètre (dW1) sur le diamètre extérieur (dE) de l'orifice d'admission (2) d'eau sous pression. En éliminant complètement, pour la première fois, les inconstantes variations de section et les résistances de forme, on réduit quasiment à zéro les pertes dues aux secousses et les turbulences de débit; le rendement s'en trouve nettement amélioré et le comportement en termes de caractéristiques d'écoulement optimisé.
PCT/DE1996/002153 1995-09-12 1996-11-08 Outil hydrodynamique pour le nettoyage de tuyaux et de canalisations WO1998020988A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE19533654A DE19533654C2 (de) 1995-09-12 1995-09-12 Hydrodynamisches Werkzeug zur Reinigung von Rohren und Kanälen
PCT/DE1996/002153 WO1998020988A1 (fr) 1995-09-12 1996-11-08 Outil hydrodynamique pour le nettoyage de tuyaux et de canalisations
US09/111,697 US6089243A (en) 1996-11-08 1998-07-08 Hydrodynamic tool for cleaning pipes and channels

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19533654A DE19533654C2 (de) 1995-09-12 1995-09-12 Hydrodynamisches Werkzeug zur Reinigung von Rohren und Kanälen
PCT/DE1996/002153 WO1998020988A1 (fr) 1995-09-12 1996-11-08 Outil hydrodynamique pour le nettoyage de tuyaux et de canalisations

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US09/111,697 Continuation-In-Part US6089243A (en) 1996-11-08 1998-07-08 Hydrodynamic tool for cleaning pipes and channels

Publications (1)

Publication Number Publication Date
WO1998020988A1 true WO1998020988A1 (fr) 1998-05-22

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE1996/002153 WO1998020988A1 (fr) 1995-09-12 1996-11-08 Outil hydrodynamique pour le nettoyage de tuyaux et de canalisations

Country Status (2)

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DE (1) DE19533654C2 (fr)
WO (1) WO1998020988A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19805374C2 (de) 1998-02-11 2000-03-23 Richard Siedler Reinigungskörper für Rohrleitungen und Kanalisationssysteme
DE29808511U1 (de) 1998-05-12 1999-04-08 Simpfendörfer, Ulrich, 74626 Bretzfeld Kanal-Sohlenreinigungsdüse, die nahezu ohne strömungshindernde Einflüsse und gewichtsreduziert ohne Moment arbeitet
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

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3656694A (en) * 1970-12-10 1972-04-18 John A Kirschke Sewer cleaning chemical dispensing nozzles
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
DE3502916A1 (de) * 1985-01-29 1986-07-31 Hans 2800 Bremen Ziegenhagen Vorrichtung zur reinigung eines rohres, kanals o.dgl., insbesondere abwasserrohrs, -kanals o.dgl.
DE19516780C1 (de) * 1995-05-11 1996-08-08 Kurt Hoerger Hydrodynamische Düse für die Reinigung von Rohren und Kanälen

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2846756C3 (de) * 1978-10-27 1982-01-28 Woma-Apparatebau Wolfgang Maasberg & Co Gmbh, 4100 Duisburg Rückstoßbetriebene Spritzvorrichtung zum Reinigen von Kanälen
US5435854A (en) * 1990-08-10 1995-07-25 Pipeline Sewer Services, Inc. Pipe cleaning modules and systems and methods for their use
DE9214268U1 (de) * 1992-10-22 1993-03-18 Steinicke, Emilia, 6477 Limeshain Düsenkörper für ein Reinigungsgerät für Kanäle und Rohre

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3656694A (en) * 1970-12-10 1972-04-18 John A Kirschke Sewer cleaning chemical dispensing nozzles
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
DE3502916A1 (de) * 1985-01-29 1986-07-31 Hans 2800 Bremen Ziegenhagen Vorrichtung zur reinigung eines rohres, kanals o.dgl., insbesondere abwasserrohrs, -kanals o.dgl.
DE19516780C1 (de) * 1995-05-11 1996-08-08 Kurt Hoerger Hydrodynamische Düse für die Reinigung von Rohren und Kanälen

Also Published As

Publication number Publication date
DE19533654C2 (de) 1997-12-04
DE19533654A1 (de) 1997-03-20

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