EP0841101A1 - Hydrodynamisches Werkzeug für die Reinigung von Rohren und Kanälen - Google Patents
Hydrodynamisches Werkzeug für die Reinigung von Rohren und Kanälen Download PDFInfo
- Publication number
- EP0841101A1 EP0841101A1 EP96117817A EP96117817A EP0841101A1 EP 0841101 A1 EP0841101 A1 EP 0841101A1 EP 96117817 A EP96117817 A EP 96117817A EP 96117817 A EP96117817 A EP 96117817A EP 0841101 A1 EP0841101 A1 EP 0841101A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pressurized water
- water
- inlet opening
- outlet openings
- diameter
- 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
Links
Images
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 the cleaning of pipes and channels according to the generic term of the first claim.
- These tools are as Flow-through parts are formed and can e.g. Sewer cleaning nozzles or sole cleaner.
- the connecting channels between the pressurized water inlet opening and recoil opening a relatively large one Radius on.
- a nozzle is shown in FIG. one in the middle in the area of the hose connection has a conical water divider on which the Radius connects. Broadened from the hose connection the cavity in the nozzle is relatively sharp, so that an annular baffle in the direction of Recoil openings is formed. The outlets lead from the impact surface in the cavity in the beam angle outward. Nozzles are inserted in the outflow openings, which is conical towards the cavity Have expansion of the inner diameter.
- DE 32 37 583 A1 and DE 35 02 916 A1 from an open Basic construction in the manner of a sled with skid-shaped arranged parallel to each other on both sides Elements.
- the backflow openings are inclined so that they are directed to the bottom of the channel.
- Roll bar secure the sole cleaners against tipping over.
- DE GM 93 08 910.4 becomes a sewer cleaning device in the form described a sole cleaner that a closed and has a compact outer design.
- the one-sided round surface facilitates automatic re-erection.
- the disadvantage of the sole cleaner is the fluidic unfavorable water supply and the associated Service restrictions.
- the object of the invention is a hydrodynamic Tool for cleaning pipes and ducts too develop that the highest possible efficiency and maximum cleaning power with minimum energy consumption guaranteed in its weight according to the Area of application can be varied and a high Lifetime guaranteed.
- the hydrodynamic tools are as flow parts trained and have a pressurized water inlet opening on the water channels with the pressurized water outlet openings connected is.
- the direction of curvature of the The radius of the water channels is opposite to that Pressure water inlet opening inclined.
- the water channels close to the pressurized water inlet opening on and go partially in this connection area into each other.
- Each water channel has a circular one Cross section and thus begins at the pressurized water inlet opening, that they're with the innermost point their diameter in the center and with the extreme Point of their diameter on the outside diameter of the pressurized water inlet opening connects.
- the water channels can in their connection area the pressurized water inlet opening has an enlarged diameter have, which extends to the lowest point of the Radius of curvature to the diameter that the water guide then steadily to the pressure water outlet opening has, tapered. Overall, this makes it a continuous one funnel-shaped feed from the pressurized water inlet opening for the respective water supply and pressure water outlet opening created.
- the pressurized water outlet openings are compared in the beam angle ⁇ inclined to the longitudinal axis of the hydrodynamic tool.
- a screw thread is provided for the reflex nozzles.
- the reflex nozzles have a screw head, are in the pressurized water outlet openings for the Countersunk head arranged.
- the water channels go either with the end of the radius in the pressurized water outlet openings over or lead from the end of Radius in a straight line and at an angle ⁇ the pressurized water outlet openings.
- the water channels bind to the pressurized water outlet openings that after screwing in the radiation nozzles there are no discontinuous ones Cross-sectional changes are formed.
- the straight forward Area of the water supply or the pressure water outlet opening essentially close tangent to the radius of the water supply.
- the Water channels and the pressurized water outlet openings there can be another cavity in the tool for filling of fiber.
- the ballast space is in the direction of movement before Water supply arranged horizontally. It can be used as needed be filled with fiber, preferably Lead granulate, sand, water or a sand / water mixture Find application.
- the hydrodynamic tools are preferably as Castings trained because their interior design by Casting is technologically advantageous.
- the core of the casting will be in the future Geometry of the pressure water inlet opening, the water channels and the pressurized water outlet openings.
- a stainless cast alloy is used as a material for the hydrodynamic tools.
- Rust protection in other cast alloys can be caused by Anti-rust paint or other types of coating, e.g. galvanizing can be achieved.
- FIG. 1 is the top view of the nozzle body and in Fig. 2nd 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 alternately have different radiation angles ⁇ 1 and ⁇ 2 and lie on different pitch circles T 1 and T 2 .
- the pressurized water outlet openings 4, which lie on the inner pitch circle T 1 have a smaller radiation angle ⁇ 1 than the pressurized water outlet openings 4 on the outer pitch circle T 2 .
- the larger the angle of inclination and thus the angle of radiation ⁇ is chosen, the further the pitch circles T 1 and T 2 lie in the direction of the outer diameter D of the sewer cleaning nozzle 1.
- 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 °.
- 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 d E.
- the funnel-shaped reduction in diameter of the pressurized water inlet opening 2 and the subsequent tapering of the diameter d W1 to the diameter d W2 of the water ducts 3 is to be designed in such a way that a continuous and steady reduction in cross section is formed, as a result of which eddies in the liquid jet are avoided.
- the pressurized water outlet openings 4 with the larger radiation angle ⁇ 1 project further into the sewer cleaning nozzle 1 than the pressurized water outlet openings 4 with the smaller radiation angle ⁇ 1 .
- the water ducts 3 merge into the pressurized water outlet openings 4 with the larger radiation angle ⁇ 2 in their radius r and lead to the pressurized water outlet openings 4 with the smaller radiation angle ⁇ 1 from the end of the radius r in a rectilinear area 3.G and at an angle ⁇ 1 .
- the rectilinear area 3.G and the pressurized water outlet openings 4 with the radiation wave ⁇ 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 guides 3 bind to the pressurized water outlet openings 4 in such a way that no discontinuous cross-sectional changes are formed, in particular after the jet nozzles 5 have been screwed in.
- Another advantage of the invention is that Arrangement of an additional cavity 7 in the Sewer cleaning nozzle 1 (Fig. 3).
- This cavity 7 is located thereby in the direction of movement in front of the water channels 3 and is at its, the pressurized water inlet opening 2 opposite end with a screw plug 8 (shown schematically) closed.
- a screw plug 8 shown schematically closed.
- this cavity can lead granulate, sand, water or a Sand / water mixture can be filled.
- the channel cleaning nozzle 1 in Fig. 3 has a relatively small pressure 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.
- the channel cleaning nozzles 1 can also use other tools for hydrodynamic cleaning of pipes and channels as a cast body with the new water supply and provided required with an additional cavity for Weight change can be equipped.
- 4 is a sole cleaner 10 shown in perspective.
- the base body 11 of the sole cleaner 10 has Skid-shaped arranged parallel to each other on both sides Elements 12 on.
- the Pressurized water inlet opening 2 the water channels 3 and the pressurized water outlet openings 4.
- the pressurized water inlet opening 2 is over the water channels 3 connected to the pressurized water outlet openings 4.
- the water ducts 3 close as in the Sewer cleaning nozzle 1 sliding against the pressurized water inlet opening 2 and go partially in this area into each other.
- hose connector 14 is in the area of the pressurized water inlet opening 2 detachable with the base body 13 or inextricably linked.
- the detachable not shown here Connection can be made using a union nut can be ensured with the base body 13 is screwed.
- the permanent connection is made preferably by welding, the hose connection 14 additionally with its other end on the base body 13 is welded.
- the pressurized water outlet openings 4 are not as in the sewer cleaning nozzle 1 arranged on partial circles, but lie in rows and in two planes E1 and E2 (see Fig. 4a).
- each level E1 and E2 there are 4 Pressurized water outlet openings provided.
- the radiation angles are ⁇ each towards the sole and at the same time from the vertical center line M seen from the outside directed. According to the requirement profile the quantity of pressure water outlet openings varies will.
- FIG. 5 A longitudinal section of the sole cleaner 10 is shown in FIG. 5 shown.
- a cavity 7 which has a bore 15a is open at the top, this opening preferably can be closed with a plug 15b.
- This cavity 7 can also, as mentioned above described, are filled with ballast material 16.
- the manufacture of the sewer cleaning nozzle 1 and Base body 11 of the sole cleaner 10 takes place preferably by pouring, as this method is the most Technologically most favorable variant for the production of the Tools is.
- the rust protection can be done by a Surface protection such as anti-rust paint or Galvanize or by using a stainless steel Cast alloy can be guaranteed. With the application an investment casting process it is possible to measure the wall roughness to reduce to less than 10 microns so that the Pipe friction coefficient is minimized.
- the core 17 is a mold for the Water duct 3 of the sewer cleaning nozzle 1 shown.
- the pressurized water outlet openings 4 and the water channels 3 are arranged in a circle, the water channels 3 run in a star shape in the center of the pressurized water inlet opening 2 together and slide in this over, the water channels 3 partially mesh.
- the pressurized water inlet 2 close the water ducts 3 in a turning radius r whose direction of curvature and size is chosen so the lowest possible resistance in terms of flow arises.
- the core of the sole cleaners is designed analogously, however, the areas for the pressurized water inlet are 2, the water channels 3 and the pressurized water outlet openings 4 arranged to each other as it future design of the basic body requires (pressurized water outlet openings not circular but in several levels, different beam angles, etc.).
- Pressurized water inlet opening 2 the large deflection radius r and the constant transition to the pressurized water outlet openings 4 becomes the continuous flow area extended or the axial pressure PK in the area of the core zone K and the axial pressure PH increased in the main area H (Fig. 7).
- the cleaning effect is increased by increasing the axial pressure PK the hydrodynamic according to the invention Tools compared to conventional sewer cleaning nozzles or sole cleaners of a similar design significantly improved.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Nozzles (AREA)
Abstract
Description
- Vermeidung von scharfkantigen plötzlichen Übergängen,
- Umlenkungsradien so groß wie möglich gestalten,
- Abrundung der Fasen,
- Vermeidung des Aufpralles der Strömung auf Flächen,
- Durchmesser der Führung so groß wie möglich,
- Optimum zwischen Strömungsgeschwindigkeit und Durchflußmenge,
- geringe Wandrauhigkeiten (RZ<10µm=Feinbearbeitung).
- Verringerung des Energie- und Wasserverbrauches,
- Erhöhung der Reinigungskraft,
- hohe Lebensdauer,
- variables Gewicht.
- Fig. 1:
- Draufsicht einer Kanalreinigungsdüse 1
- Fig. 2:
- Kanalreinigungsdüse 1 in Schnittdarstellung entlang der Linie X gem. Fig. 1
- Fig. 2a:
- Ausschnitt (Draufsicht) des Verteilungskegels entlang der Linie Z gem. Fig. 2
- Fig. 2b:
- Perspektivische Ansicht der Fig. 2a.
- Fig. 3:
- Kanalreinigungsdüse 1 in Schnittdarstellung mit zusätzlichem Hohlraum 7
- Fig. 4:
- Perspektivische Darstellung eines Sohlenreinigers 10
- Fig. 4a:
- Ansicht des Sohlenreinigers 10 aus Richtung des Schlauchanschlusses 14
- Fig. 5:
- Längsschnitt durch den Sohlenreiniger 10 gem. Fig. 4
- Fig. 6:
- Perspektivische Darstellung eines Kernes 17 zum Gießen einer Kanalreinigungsdüse 1
- Fig. 7:
- Verlauf des Axialdruckes PK im Flüssigkeitsstrahl
Claims (12)
- Hydrodynamisches Werkzeug für die Reinigung von Rohren und Kanälen mit einem Anschluß für einen Wasserschlauch als Druckwassereintrittsöffnung und Druckwasseraustrittsöffnungen auf der Seite des Wasseranschlusses, wobei die Druckwassereintrittsöffnung mit den Druckwasseraustrittsöffnungen über Wasserführungen in Form von Kanälen mit kreisförmigem Querschnitt verbunden ist und in die Druckwasseraustrittsöffnungen Abstrahldüsen einschraubbar sind, dadurch gekennzeichnet,daß die Wasserführungen (3) einen größtmöglichen Umlenkradius (r) aufweisen, gleitend an die Druckwassereintrittsöffnung (2) anschließen und teilweise ineinander übergehen, wobei mindestens zwei Wasserführungen (3) mit dem innersten Punkt ihres Durchmessers (dW1) im Mittelpunkt (M) und mit dem äußersten Punkt ihres Durchmessers (dW1) am Außendurchmesser (dE) der Druckwassereintrittsöffnung (2) anliegen,daß die Krümmungsrichtung des Umlenkradius (r) der Druckwassereintrittsöffnung (2) entgegengesetzt ist,daß die Wasserführungen (3) entsprechend der Anordnung der Druckwasseraustrittsöffnungen (4) entweder mit dem Ende ihres Umlenkradius (r) oder mit einem geradlinigen Bereich (3G) und im Winkel (α) in die jeweilige Druckwasseraustrittsöffnung (4) übergehen, wobei unstetige Querschnittsveränderungen zur Abstrahldüse (5) vermieden werden.
- Hydrodynamisches Werkzeug nach Anspruch 1, dadurch gekennzeichnet, daß der geradlinige Bereich (3G) der Wasserführungen (3) bzw. die Druckwasseraustrittsöffnungen (4) im wesentlichen tangential an den Umlenkradius (r) anschließen.
- Hydrodynamisches Werkzeug nach Anspruch 1 und 2, dadurch gekennzeichnet, daß sich die Druckwassereintrittsöffnung (2) bei einem Schlauchanschluß (2a) oder (9) größer 2 X dW1 bis auf den Durchmesser 2 x dW1 vorzugsweise trichterförmig verjüngt.
- Hydrodynamisches Werkzeug nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß sich die Wasserführungen (3) in ihrem Durchmesser (dW1) bis auf einen Durchmesser (dW2) im Anbindungsbereich der Druckwasseraustrittsöffnungen (4) verjüngen.
- Hydrodynamisches Werkzeug nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Reduzierung des Durchmessers (dW1) auf den Durchmesser (dW2) im Bereich der am weitesten in Bewegungsrichtung liegenden Position des Umlenkradius (r) abgeschlossen ist.
- Hydrodynamisches Werkzeug nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß zusätzlich zu dem Hohlraum (7), der die Druckwassereintrittsöffnung (2), die Wasserführungen (3) und die Druckwasseraustrittsöffnungen (4) bildet, ein weiterer Hohlraum (7) mit einer Verschlußmöglichkeit im Werkzeug angeordnet ist.
- Hydrodynamisches Werkzeug nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß die Verschlußmöglichkeit aus einer Bohrung (15a) und einer versenkbaren Verschlußschraube (8) oder einem Verschlußstopfen (15b) besteht.
- Hydrodynamisches Werkzeug nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß der Hohlraum (7) zur Erhöhung des Werkzeuggewichtes mit einem Ballaststoff (16) gefüllt wird.
- Hydrodynamisches Werkzeug nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß als Ballaststoff (16) Bleigranulat, Sand, Wasser oder ein Sand/Wassergemisch eingesetzt wird.
- Hydrodynamisches Werkzeug nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß das hydrodynamische Werkzeug vorzugsweise als Gußteil ausgebildet ist.
- Hydrodynamisches Werkzeug nach einem der Ansrüche 1 bis 10, dadurch gekennzeichnet, daß als Werkstoff rostfreie Gußlegierung Anwendung findet.
- Hydrodynamisches Werkzeug nach einen der Ansprüche 1 bis 11, dadurch gekennzeichnet, daß das hydrodynamische Werkzeug zur Gewährleistung geringer Wandrauhigkeiten der Wasserführungen (3) als Feingußteil ausgebildet ist.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP96117817A EP0841101B1 (de) | 1996-11-07 | 1996-11-07 | Hydrodynamisches Werkzeug für die Reinigung von Rohren und Kanälen |
DE59607422T DE59607422D1 (de) | 1996-11-07 | 1996-11-07 | Hydrodynamisches Werkzeug für die Reinigung von Rohren und Kanälen |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP96117817A EP0841101B1 (de) | 1996-11-07 | 1996-11-07 | Hydrodynamisches Werkzeug für die Reinigung von Rohren und Kanälen |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0841101A1 true EP0841101A1 (de) | 1998-05-13 |
EP0841101B1 EP0841101B1 (de) | 2001-08-01 |
Family
ID=8223376
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96117817A Expired - Lifetime EP0841101B1 (de) | 1996-11-07 | 1996-11-07 | Hydrodynamisches Werkzeug für die Reinigung von Rohren und Kanälen |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0841101B1 (de) |
DE (1) | DE59607422D1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2360340A (en) * | 2000-03-14 | 2001-09-19 | Jurgen Bock | Pipe cleaning nozzle |
US9033001B2 (en) | 2012-04-17 | 2015-05-19 | Beijing Kohler Ltd. | Water divider |
CN113796807A (zh) * | 2021-06-02 | 2021-12-17 | 华帝股份有限公司 | 一种分水器的底盖结构、分水器及洗碗机 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3656694A (en) * | 1970-12-10 | 1972-04-18 | John A Kirschke | Sewer cleaning chemical dispensing nozzles |
DE3237583A1 (de) | 1982-10-09 | 1984-04-12 | Udo Th. 4740 Oelde Thüner | Spuelkopf |
WO1985005295A1 (en) | 1984-05-24 | 1985-12-05 | Bo Larsson | Movable hydrodynamic nozzle for pressurized water cleaning of water, discharge and surface water pipes |
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 |
-
1996
- 1996-11-07 EP EP96117817A patent/EP0841101B1/de not_active Expired - Lifetime
- 1996-11-07 DE DE59607422T patent/DE59607422D1/de not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3656694A (en) * | 1970-12-10 | 1972-04-18 | John A Kirschke | Sewer cleaning chemical dispensing nozzles |
DE3237583A1 (de) | 1982-10-09 | 1984-04-12 | Udo Th. 4740 Oelde Thüner | Spuelkopf |
WO1985005295A1 (en) | 1984-05-24 | 1985-12-05 | Bo Larsson | Movable hydrodynamic nozzle for pressurized water cleaning of water, discharge and surface water pipes |
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 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2360340A (en) * | 2000-03-14 | 2001-09-19 | Jurgen Bock | Pipe cleaning nozzle |
US9033001B2 (en) | 2012-04-17 | 2015-05-19 | Beijing Kohler Ltd. | Water divider |
CN113796807A (zh) * | 2021-06-02 | 2021-12-17 | 华帝股份有限公司 | 一种分水器的底盖结构、分水器及洗碗机 |
CN113796807B (zh) * | 2021-06-02 | 2023-10-13 | 华帝股份有限公司 | 一种分水器的底盖结构、分水器及洗碗机 |
Also Published As
Publication number | Publication date |
---|---|
EP0841101B1 (de) | 2001-08-01 |
DE59607422D1 (de) | 2001-09-06 |
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