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
  • B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
  • B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
  • B08B9/0322—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid in combination with a plug, e.g. inflatable mole, to isolate a part of the tube
• • 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

Definitions

• the invention relates to a device for rehabilitation, in particular for cleaning pipes, with a cleaning part that can be connected to a supply part via a connecting pipe, which is comprised of a supply pipe for supplying an inflatable sealing part with a medium, at least in sections, which is between the Supply part and the cleaning part is arranged within the tube.
• the known cleaning device can no longer be used with a view to success. If one were to try, in particular with an increased water pressure, to remove the contamination point in the pipe, it cannot be ruled out that the known sealing part in the manner of a storage bladder would turn upside down against its effective direction and open the pipe outlet. In addition to damage to the sealing part, the function of the known device as a whole is then no longer guaranteed.
• the sealing part can also be torn off at the point of the connection transition with the connecting or supply pipe, which leads to the cleaning part or to the sealing part.
• the use of the known device has its limits, particularly outside the sanitary area, when very high pressures have to be built up to remove contaminants, for example in pipelines.
• a device for the rehabilitation of pipes in which root-killing foams can be introduced into pipes via the connecting pipe, in order to remove any roots that may have accumulated there.
• the mentioned connecting pipe is surrounded by the inflatable sealing part, which remains in its inflated state at the pipe entrance, whereas for the supply of the root-killing foam, the connecting pipe is guided from the sealing part to the respective location within the pipe to be treated.
• a feed plug is embedded in the end of the sealing part, which causes sealing problems.
• This known device is not very suitable for cleaning pipes, for example in the form of blockages.
• the object of the invention is to create a device for rehabilitation, in particular for cleaning pipes, which does not have the disadvantages described and which can be used in a variety of ways, that is to say, therefore also need not be limited to use in the sanitary area.
• This object is achieved by a device having the features of claim 1.
• the entire sealing part comprises the supply pipe radially, that the sealing part is fixed with its two ends to the supply pipe and that the supply pipe has openings arranged radially therein, which open into the interior of the sealing part , even at high pressures, the sealing part is securely in contact with the inner wall of the pipe and cannot detach, in particular it cannot be turned inside out. A secure seal is therefore guaranteed in every operating state. Since the sealing part is firmly connected to the supply pipe, it is moved together with it within the pipe and inflated only at the point of contamination or blockage. There is therefore no friction between the sealing part and the pipe or with the supply or connection pipe, so that low-wear operation is ensured.
• water, compressed air and other cleaning media, fungicides, root-killing foams or renovation material, such as pipe cladding materials to be sprayed on can be fed into the interior of the pipe, depending on the intended use, via the cleaning part.
• the Verbin ⁇ dung pipe 'and the supply tube for that sealing vonein ⁇ are other separately, can be, for example, the sealing Bring partially damaging media via the connecting pipe from the supply part into the pipe, whereas the sealing part for a swelling process can be supplied with a swelling medium, such as nitrogen gas, from the supply pipe.
• the device according to the invention can also be used in supply lines, for example in pipelines.
• a medical application within vascular systems is also conceivable.
• the device according to the invention could be used in the respective bloodstream to remove cholesterol deposits or the like by means of a catheter. be used.
• the cleaning and / or swelling medium to be supplied can also be supplied by the supply part under high pressure, provided that the supply part has the necessary pressure-increasing devices for this. As the pressure for the cleaning medium increases, the pressure for the inflatable sealing part must also be increased in order to prevent the cleaning medium with the dirt particles from escaping into the environment in an undesired manner.
• the cleaning part has a spherical cleaning head which is provided with passages distributed over the ball surface. It is preferably provided here that the passages run along lines which start from the center of the spherical cleaning head in the manner of radiation. Because of this arrangement, treatments can be carried out in a targeted manner inside the tube with the cleaning part. To increase the pressure, the passages can be provided with nozzle-like inserts.
• the sealing part is formed from an elastically flexible bead-like ring, in particular from rubber material. Because of this design, tubes which are not circular in cross-section, for example tubes with a square cross-section, can also be easily treated, in particular cleaned.
• the elastically resilient ring not only adapts to different pipe geometries, but also compensates for surface roughness within the pipe and can create a larger width on the inner circumference of the pipe, which results in an improved seal.
• the sealing part is inflated, the ring is deformed and inflated from the center towards its two ends and inflated, so that a good sealing effect is achieved from the beginning and a large sealing surface is also available.
• the supply pipe is designed like a sleeve, which is sealingly connected to the connecting pipe to form a chamber at the end.
• a return pipe is arranged between the sleeve-like pipe section and the connecting pipe, which return pipe can be connected to a disposal device and which has a connecting opening which opens into the open between the cleaning part and the sealing part. In this way, separately from the connecting pipe, the medium supplied via this pipe can be removed from the pipe together with the removed dirt particles via the return pipe.
• the contaminated cleaning medium can then be delivered to a disposal device which preferably filters the contaminants out of the cleaning medium, which in turn can then be returned to the cleaning part via the connecting pipe.
• a closed circuit for the cleaning medium can be achieved in this way.
• the disposal device can, however, also consist of the continuation of the pipe or another pipe into which the contaminated cleaning medium can be drained.
• the connecting pipe and the supply pipe are connected to the supply part, which has at least one pressure accumulator for the storage of fluid or gas.
• the device can be designed as a mobile maintenance unit which can be operated directly via the supply part without any further connections to external supply devices.
• At least parts of the connecting, supply and return pipe are designed to be flexible. As a result, the device can then be used without difficulty in pipes with a large number of curved areas.
• Fig.l shows a longitudinal section through a tube with a first embodiment of an inserted device, which is also shown in longitudinal section;
• FIG. 2 shows a representation corresponding to FIG. 1 with a further embodiment of the cleaning device.
• the tube 10 has a circular diameter. To remove contamination or blockage (not shown) within this tube 10, the cleaning device has been inserted into the tube 10 at a suitable location (not shown).
• the device has a cleaning part 12 which is connected to a supply part (not shown) via a connecting pipe 14 which is only partially shown in the figure.
• the device also has an inflatable sealing part 16, which has a predeterminable volume occupies and which is arranged between the supply part (not shown) and the cleaning part 12 within the tube 10.
• the cleaning part 12 has a spherical cleaning head 18, which is provided with passages 20 in the form of bores, the cleaning head being connected to the connecting pipe 14.
• the passages 20 are uniformly distributed at predeterminable distances from one another over the circumferential surface of the cleaning head 18.
• the sealing part 16 is formed from an elastically resilient ring 22 made of a suitable rubber material. This ring 22 can be filled with nitrogen gas via a supply pipe 26.
• the supply pipe 26 is sleeve-shaped and has one end connected to a supply line 24, which is part of the supply pipe.
• the pipe section 26 is penetrated by the connecting pipe 14 to form a chamber 28 and is sealingly connected to the end thereof by means of sealing means 29.
• the ring 22 is in turn sealingly connected to the outer circumference of the sleeve-like tube section 26, which has passages 30 in the form of radially arranged bores for establishing a connection between the ring volume and the chamber volume.
• two sleeve-shaped clamps 32 are provided which encompass the ends of the ring 22.
• the connecting pipe 14 and the supply pipe 26 are connected to the supply part (not shown), which in each case has pressure accumulators for storing a cleaning medium or nitrogen gas.
• the direction of transport of the gas within the mentioned supply line 24 is indicated by an arrow in the figure.
• An adjustable check valve 34 ensures that the pressure within the bubble-like sealing part 16 has a predeterminable magnitude, that could damage the rubber or pipe 10 when it reaches its burst pressure.
• a further controllable valve 35 ensures that the gas once introduced into the ring 22 cannot inadvertently flow back to the accumulator.
• At least parts of the connecting pipe 14 and the supply pipe 26 in the form of the supply line 24 are designed to be flexible in order to be able to follow pipe bends of any kind (not shown).
• the cleaning and renovation device is preferably advanced within the pipe 10 via the connecting pipe 14, which is designed to be flexibly developed from a hose drum.
• the sealing part 16 is kept essentially pressureless, so that it cannot rub together along the inner circumference of the tube 10 in a damaging manner.
• the cleaning head 18 comes into contact with soiling that dangerously affects the line cross section of the tube 10, which is noticeable for the operator if the device cannot be pushed further into the tube 10 via the connecting tube 14, a Cleaning process triggered.
• the supply line 24 is pressurized with gas, which leads to an expansion of the ring-like sealing part 16 via the supply pipe 26.
• the pumping up or filling of the annular chamber volume with gas is continued until the sealing part 16 is in a sealing manner with the inner circumference of the tube 10;
• a safe, sealing system can be produced by means of a corresponding pressure measuring device (not shown), which determines the pressure increase within the annular chamber.
• the cleaning medium in the simplest case water, is then passed into the interior of the pipe 10 via the connecting pipe 14 and the passages 20 of the cleaning head 12. The water particles flowing out of the nozzle-like passages 20 dissolve the pollution and thus remove these or pipe blockages.
• the cleaning part 12 can be moved longitudinally, wherein the cleaning head 18 can be mechanically moved back and forth by means of the connecting pipe 14 with the pipe section 26 held at rest, its position by the inflated ring 22 is determined. In this way, mechanically supported clogging by "ramming" can be eliminated without the sealing part 16 having to change its position, which is beneficial for low-wear operation of the device.
• the second embodiment of the cleaning device shown in FIG. 2 corresponds essentially to the first embodiment, so that only the differences between the two embodiments will be discussed in the following. Corresponding parts of the two embodiments are reproduced with the same reference numerals, but for the second embodiment with 100 increased reference numbers.
• a return pipe 136 is arranged between the sleeve-like pipe section 126 and the connecting pipe 114 and can be connected to a disposal device (not shown).
• the return pipe 136 is also formed within the sleeve-like pipe section 126 as a sleeve which surrounds the connecting pipe 114 and which forms an enlarged return chamber 140.
• the return chamber 140 is also sealed off from the outside by means of sealing means 129.
• the sleeve-like return chamber 140 protrudes beyond the end of the pipe section 126 with a predeterminable axial projection and has a connection opening 138 arranged radially arranged in the form of a plurality of bores arranged along its outer circumference, which in the illustration according to Fig.2 open into the inside of the pipe.
• the cleaning medium supplied via the connecting pipe 114 for example in the form of water under pressure, can be removed with the dirt particles from the cleaning device and the pipe 110.
• Inlet and return in the form of the connecting pipe 114 and the return pipe 136 can be shut off via shut-off devices (not shown) and are secured against unintentional backflow of the cleaning medium via check valves (not shown).
• a fungicide, root-killing foams or conventional remedial agents can also be introduced into the interior of the pipe using the device.

Landscapes

• 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)
• Cleaning In General (AREA)
• Sink And Installation For Waste Water (AREA)

Priority Applications (3)

Applications Claiming Priority (2)

Publications (1)

Family

ID=6472162

Family Applications (1)

Country Status (7)

Cited By (3)

Families Citing this family (11)

Citations (4)

Family Cites Families (2)

• 1992
  • 1992-11-05 DE DE4237352A patent/DE4237352A1/de not_active Ceased
• 1993
  • 1993-10-15 ES ES93924041T patent/ES2097549T3/es not_active Expired - Lifetime
  • 1993-10-15 DK DK93924041.2T patent/DK0668802T3/da active
  • 1993-10-15 DE DE59305501T patent/DE59305501D1/de not_active Expired - Fee Related
  • 1993-10-15 AT AT93924041T patent/ATE149003T1/de not_active IP Right Cessation
  • 1993-10-15 WO PCT/EP1993/002849 patent/WO1994009922A1/de active IP Right Grant
  • 1993-10-15 JP JP6510624A patent/JPH08502688A/ja active Pending
  • 1993-10-15 EP EP93924041A patent/EP0668802B1/de not_active Expired - Lifetime

Patent Citations (4)

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