EP0486821A2 - Dispositif pour le nettoyage de tubes - Google Patents

Dispositif pour le nettoyage de tubes Download PDF

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Publication number
EP0486821A2
EP0486821A2 EP91117899A EP91117899A EP0486821A2 EP 0486821 A2 EP0486821 A2 EP 0486821A2 EP 91117899 A EP91117899 A EP 91117899A EP 91117899 A EP91117899 A EP 91117899A EP 0486821 A2 EP0486821 A2 EP 0486821A2
Authority
EP
European Patent Office
Prior art keywords
longitudinal axis
essentially
cylinder
region
area
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.)
Withdrawn
Application number
EP91117899A
Other languages
German (de)
English (en)
Other versions
EP0486821A3 (en
Inventor
Ernst Wedemann
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0486821A2 publication Critical patent/EP0486821A2/fr
Publication of EP0486821A3 publication Critical patent/EP0486821A3/de
Withdrawn legal-status Critical Current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
    • B08B9/053—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction
    • B08B9/055—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction the cleaning devices conforming to, or being conformable to, substantially the same cross-section of the pipes, e.g. pigs or moles
    • B08B9/0554—Diablo shaped pigs

Definitions

  • the invention relates to a device for cleaning at least one pipe, which is designed as a body which runs essentially along a longitudinal axis and can be aligned with the longitudinal axis in the direction of a pipe longitudinal axis.
  • the object of the present invention is therefore to improve a device of the type mentioned in the introduction in such a way that high-quality cleaning can be carried out in a short time.
  • This object is achieved in that at least two scraping elements arranged at a distance from the longitudinal axis and enclosing the longitudinal axis in a ring are provided, between which at least one receiving space extends.
  • the front scraping element in a transport direction scrapes off substantial portions of contaminants adhering to the inner pipe boundary and pushes it in the direction of the movement of the scraping element when the device is transported. Contaminants overcoming the first scraping element accumulate in the area of the receiving space. In addition, residual contaminants are stripped from the inner pipe boundary by the second scraping element and passed into the receiving space.
  • a prestressing of the scraper elements with respect to the pipe to be cleaned can be achieved by a circumference spanned by the scraper elements which is slightly larger than an inner diameter of the pipe.
  • three scraping elements are arranged one behind the other in the direction of the longitudinal axis, each of which is separated in pairs from a receiving space.
  • This successive arrangement of more than two scraping elements can further improve the cleaning result.
  • At least one locatable element is arranged in the region of an interior of the body.
  • two rectified magnets in the region of the interior of the body, which, due to their orientation, generate a strong magnetic field transverse to the longitudinal axis.
  • This magnetic field can be used on the one hand to locate the body, but on the other hand it is also possible to use the magnetic field to trigger switching functions which influence the movement sequence of the device.
  • the body is designed as a cylinder, in which a piston is movably guided.
  • a disinfection liquid within the cylinder, which is expelled when the piston moves relative to the cylinder and which triggers a disinfection process along the transport path of the device.
  • the piston is connected via a connecting rod to a stripping element which is arranged behind the scraping elements in the direction of transport of the body.
  • a stripping element which is arranged behind the scraping elements in the direction of transport of the body.
  • a device for cleaning a pipe (1) consists essentially of a body (3) which is symmetrical to a longitudinal axis (2) and which is provided with two scraper elements (4) in the area of its boundary which can be turned towards the pipe (1) are arranged at a distance from the longitudinal axis (2) and surround the body (3) in a ring.
  • the scraping elements (4) are arranged one behind the other in the direction of the longitudinal axis (2) and separated from one another by a receiving space (5).
  • a scraping element (4) has scraping edges (6, 7) in the area of its extension facing away from the longitudinal axis (2), which scrape off contaminants (9) adhering to the inside surface (8) of the tube (1).
  • the receiving space (5) is essentially designed as a trough (10) which surrounds the longitudinal axis (2) in a ring.
  • the body (3) has a head (11), which is formed from a curved head base (12) and a head end (13) that is essentially linear and partially oblique to the longitudinal axis (2).
  • the body (3) In the area of its extension facing away from the head (11), the body (3) has an end segment (14) which consists of a curved end base (15) and an end end (16) which is essentially linear and partially oblique to the longitudinal axis (2) is trained.
  • two scraping elements (4) separated from a groove (50) are arranged in the region of the head (11) and the end segment (14).
  • rounded recesses (49) are provided in the area of the head (11) and the end segment (14), which ensure a reduction in impact forces and thus a reduction in the risk of splitting.
  • a lateral boundary of the head base (12) forms a fluidized bed which keeps impurities in front of the body (3) in a state of suspension and thereby improves the cleaning quality.
  • a device (18) is arranged which enables the body (3) to be located within the tube (1) and can be used to trigger switching functions.
  • the magnets (19, 20) can be arranged with their longitudinal axes in the direction of the longitudinal axis (2) of the body (3) and can be assigned to each other with their north or south poles.
  • magnets (19, 20) with their longitudinal axes transverse to the longitudinal axis (2) and to align the north or south poles of the magnets (19, 20) with the same orientation.
  • other locatable devices (18) for example a transmitter, in the region of the body (3).
  • the magnetic field strength can be increased by arranging a magnetizable plate (45) between the magnets (19, 20).
  • the body (3) is designed as a cylinder (21) in which a piston (22) is guided so as to be movable in the direction of the longitudinal axis (2).
  • the piston (22) is connected via a coupling rod (23) to a stripping element (24) which is essentially centered on the longitudinal axis (2).
  • the piston (22) In the area of the longitudinal axis (2), the piston (22) has a piston bore (25) and the coupling rod (23) has a coupling bore (26).
  • the coupling bore (26) is transferred into transverse bores (27) which connect the coupling bore (26) to a distribution ring (28) which is made of an amorphous material.
  • the coupling rod (23) is movably guided in the area of the piston by a ball joint (29).
  • the ball joint (29) has a ball bore (30) connecting the coupling bore (26) to the piston bore (25), which is provided with a bore extension (31) in the area of its extension facing the piston bore (25).
  • the coupling rod (23) is passed through a cover recess (32) which limits the area of the cylinder (21) in the area of its extension facing the stripping element (24) and is designed as a stop for the piston (22).
  • the cover recess (32) extends transversely to the longitudinal axis (2) to a greater extent than the coupling rod (23) and enables the coupling rod (23) to pivot relative to the piston (22).
  • the piston (22) In the area of a boundary facing a cylinder wall (34), the piston (22) has piston rings (35) sealing it against the cylinder (21).
  • the cylinder (21) In the area of its extension facing away from the cylinder cover (33), the cylinder (21) is delimited by a cylinder cap (42).
  • Disinfectant liquid (37) is arranged in an interior (36) of the cylinder (21).
  • the scraping elements (4) are arranged in the area of an outer boundary of the cylinder (21) facing away from the interior (36).
  • one of the scraping elements (4) is arranged in the region of an end of the cylinder (21) facing the cylinder cover (33) and two scraping elements (4) are in the region of the end of the cylinder (21 facing the cylinder cover (33) ) intended.
  • the scraping elements (4) facing the cylinder cover (33) are formed from angled profiles (38) which have one leg essentially perpendicular to the longitudinal axis (2) and another leg essentially in the direction of the longitudinal axis (2) and starting from the first leg are arranged in the direction of the stripping element (24).
  • the scraping element arranged in the area of the cylinder cap (42) is made of an amorphous material and is supplied with disinfectant liquid (37) via through bores (43) extending in the direction of the longitudinal axis (2).
  • a filling opening (46) one of which is a spring (48) takes up loaded ball (47) and allows the interior (36) to be filled with disinfectant liquid (37).
  • the angle profiles (38) are arranged in the region of the cylinder cover (33).
  • the stripping element (24) has rounded corner regions (51).
  • the cover recess (32) widens in the direction of the stripping element (24) in order to permit a larger pivoting angle of the coupling rod (23) when pipe elbows or pipe twists pass through.
  • the cylinder cover (33) is also rounded.
  • the cylinder cap (42) is rounded in the area of corners (53).
  • the piston (2o) is provided with a coating (54) in the area of its expansion facing the interior (36).
  • a piston base (55) facing the cylinder cap (42) has a rounded design in order to reduce an impact area in the area of its boundary facing the cylinder cap (42).
  • the coating (54) has, in the area of its boundary facing the interior (36), a scraping edge (56) which runs along the cylinder wall (34) and wipes off contaminants which accumulate in the area of the cylinder wall (34).
  • the cylinder cap (42) is provided with an outer curvature in the area of its outer surface facing away from the interior (36) and can be designed as a turned part.
  • a body (3) designed in accordance with FIGS. 1 to 3 is pressed through the tube (1) with the aid of compressed air.
  • Contaminants (9) stripped from the front scraping element (4) in the transport direction collect in the transport direction (44) in front of the body (3) and are conveyed by the latter through the pipe (1).
  • the first Contaminants that overlap scraping element (4) or contaminations that have not been detached from the first scraping element (4) are detached from the pipe (1) by a subsequent scraping element (4) and collect within the receiving space (5).
  • the body (3) is located within the tube (1) using the magnets (19, 20).
  • a change in shape of the body (3) due to the forces of the magnets (19, 20) is avoided by a longitudinal reinforcement (39) extending in the direction of the longitudinal axis (2), which is designed, for example, as a Teflon core.
  • the interior (36) is filled with disinfectant liquid (37) before a cleaning process is carried out.
  • the filling can take place, for example, after loosening a sealing plug (40) in the area of the stripping element (24).
  • a sealing plug 40
  • the body (3) is inserted into the tube (1) in such a way that the cylinder (21) is aligned with the cylinder cap (42) in the transport direction (44).
  • An overpressure is then built up behind the stripping element (24) in the direction of transport (44), which reaches the area of the cylinder cover (33) throttled via longitudinal bores (41) in the area of the stripping element (24). Due to the higher pressure behind the stripping element (24) and due to the braking effect of the scraping elements (4) sliding along the inner surface (8) of the tube (1), the piston (22) is displaced during transport of the cylinder (21) along the tube (1 ) pressed into the cylinder (21).
  • the relative movement of the piston (22) relative to the cylinder (21) results in disinfectant liquid located inside the cylinder (21) (37) pressed through the coupling rod (23) into the area of the stripping element (24).
  • the disinfectant liquid (37) passes through the transverse bores (27) into the area of the distribution ring (28) and is distributed by the latter in the area of the inner surface (8).
  • Contaminants (9) separated from the scraping elements (4) are collected in the area of the receiving spaces (5). Mechanical cleaning is first carried out with the help of the scraping elements (4) and then bacterial cleaning with the help of the distribution ring (28).
  • the head end (13) is designed as a catching cone, which adjoins the head base (12) designed as a flushing ring.
  • the flushing ring In the area of its boundary facing the scraper ring (4), the flushing ring has a base (57), the base boundary (58) of which in the area of its extent facing the scraper element (4) essentially continuously into an outer boundary (59) of the scraper element ( 4) is transferred.
  • a collector (60) which extends between the scraper rings and which is provided with the troughs (10) in the region of its lateral outer boundary is likewise essentially continuously transferred into the outer boundary (59) in the region of a lateral collector boundary (61).

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning In General (AREA)
EP19910117899 1990-10-25 1991-10-21 Device for cleaning of pipes Withdrawn EP0486821A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4033962 1990-10-25
DE19904033962 DE4033962A1 (de) 1990-10-25 1990-10-25 Vorrichtung zur reinigung von rohren

Publications (2)

Publication Number Publication Date
EP0486821A2 true EP0486821A2 (fr) 1992-05-27
EP0486821A3 EP0486821A3 (en) 1993-06-09

Family

ID=6417044

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910117899 Withdrawn EP0486821A3 (en) 1990-10-25 1991-10-21 Device for cleaning of pipes

Country Status (2)

Country Link
EP (1) EP0486821A3 (fr)
DE (1) DE4033962A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2697027A1 (fr) * 1992-10-19 1994-04-22 Inst Fs Rech Expl Mer Dispositif de nettoyage des canalisations d'un photobioréacteur et photobioréacteur muni de ce dispositif de nettoyage.
FR2702398A1 (fr) * 1993-03-12 1994-09-16 Steap Sarl Dispositif pour vidanger une tuyauterie contenant un fluide liquide ou pâteux.
CN110340079A (zh) * 2019-08-13 2019-10-18 华能沁北发电有限责任公司 一种炉膛负压取样管路清堵装置

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4216571C1 (de) * 1992-05-20 1993-11-11 Peter Prof Dr Kunz Verfahren und Vorichtung zur Verhinderung mikrobiellen Wachstums in Rohrleitungen/Wasserkreislaufsystemen
DE4243642C2 (de) * 1992-12-22 1995-05-04 Abk Armaturenbau Gmbh Rohrleitungsmolch
DE102006016215A1 (de) * 2006-04-03 2007-10-04 Südmo Holding GmbH Molch zum Trennen von Medien in einer Rohrleitung und zum Reinigen der Rohrleitung in lebensmitteltechnologischen Anlagen

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1756378A (en) * 1922-07-03 1930-04-29 Pilliam F Oberhuber Apparatus for cleaning condenser tubes
DE2141349A1 (de) * 1971-08-18 1973-03-01 Schmieding Ernst Vorrichtung zum reinigen von rohrleitungen
DE3818246C2 (de) * 1988-05-28 1998-09-17 Hoechst Ag Manschettenmolch
FR2640530B1 (fr) * 1988-12-20 1992-01-31 Fmc Europe Racleur pour conduite de distribution de liquide, notamment pour produits petroliers
DE3920981A1 (de) * 1989-06-27 1991-01-10 Ist Molchtechnik Gmbh Rohrleitungsmolch

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2697027A1 (fr) * 1992-10-19 1994-04-22 Inst Fs Rech Expl Mer Dispositif de nettoyage des canalisations d'un photobioréacteur et photobioréacteur muni de ce dispositif de nettoyage.
WO1994009113A1 (fr) * 1992-10-19 1994-04-28 Heliosynthese Dispositif de nettoyage des canalisations d'un photobioreacteur et photobioreacteur muni de ce dispositif de nettoyage
FR2702398A1 (fr) * 1993-03-12 1994-09-16 Steap Sarl Dispositif pour vidanger une tuyauterie contenant un fluide liquide ou pâteux.
CN110340079A (zh) * 2019-08-13 2019-10-18 华能沁北发电有限责任公司 一种炉膛负压取样管路清堵装置

Also Published As

Publication number Publication date
DE4033962A1 (de) 1992-04-30
EP0486821A3 (en) 1993-06-09

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