EP1609540A2 - Procédé de traitement d'un tube à nettoyer - Google Patents

Procédé de traitement d'un tube à nettoyer Download PDF

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Publication number
EP1609540A2
EP1609540A2 EP20050405388 EP05405388A EP1609540A2 EP 1609540 A2 EP1609540 A2 EP 1609540A2 EP 20050405388 EP20050405388 EP 20050405388 EP 05405388 A EP05405388 A EP 05405388A EP 1609540 A2 EP1609540 A2 EP 1609540A2
Authority
EP
European Patent Office
Prior art keywords
pipeline
pipe
treatment
abrasive
water
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Withdrawn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
EP20050405388
Other languages
German (de)
English (en)
Inventor
Werner Bachmann
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.)
Adisa Service und Entwicklungs AG
Original Assignee
Adisa Service und Entwicklungs AG
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 Adisa Service und Entwicklungs AG filed Critical Adisa Service und Entwicklungs AG
Publication of EP1609540A2 publication Critical patent/EP1609540A2/fr
Withdrawn legal-status Critical Current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
    • B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, 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
    • B08B9/032—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
    • 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
    • B08B9/043—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes
    • B08B9/0436—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved by externally powered mechanical linkage, e.g. pushed or drawn through the pipes provided with mechanical cleaning tools, e.g. scrapers, with or without additional fluid jets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24C—ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL
    • B24C3/00—Abrasive blasting machines or devices; Plants
    • B24C3/32—Abrasive blasting machines or devices; Plants designed for abrasive blasting of particular work, e.g. the internal surfaces of cylinder blocks
    • B24C3/325—Abrasive blasting machines or devices; Plants designed for abrasive blasting of particular work, e.g. the internal surfaces of cylinder blocks for internal surfaces, e.g. of tubes
    • B24C3/327—Abrasive blasting machines or devices; Plants designed for abrasive blasting of particular work, e.g. the internal surfaces of cylinder blocks for internal surfaces, e.g. of tubes by an axially-moving flow of abrasive particles without passing a blast gun, impeller or the like along the internal surface
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B7/00—Water main or service pipe systems
    • E03B7/006—Arrangements or methods for cleaning or refurbishing water conduits

Definitions

  • Pipe cleaning and pipe rehabilitation methods are well known, with which a pipeline system freed from rust and deposits and the cleaned inner surface of the tubes can be coated with a plastic.
  • Construction are to be removed. Furthermore, a fiber optic or TV-based Inspection required to control the cleaning success.
  • This prior endoscopy has the advantage that a targeted treatment can be made. It may be the remedy for the treatment existing conditions are selected accordingly. It can also be the Duration of treatment to be chosen accordingly. With that you can Breakthroughs in the lines and corresponding consequential damage avoided become.
  • the endoscopy at the end of treatment allows the Duration of treatment scarce. So far, all jobs have been sure to have treated enough, the treatment rather too intensive. Thanks to the prior assessment of the line condition and the subsequent follow - up but the treatment can be precise on the Be tuned conditions.
  • Non-abrasive agents may optionally Release layers from the inner surface. But only abrasive agents can Grind the inner surface so that an inner coating on a clean Metallic inner surface is possible. It will therefore be at least once in the Course of the cleaning process selected one of the abrasive means.
  • abrasive Means are dry or wet abrasion under vacuum or compressed air considered. Rarely, the dry abrasion under compressed air and the wet Abrasion used under vacuum.
  • the Inner surfaces of iron pipes advantageously dry abradiert. Thereby can be removed on the surfaces of existing flash rust.
  • a rust can be caused by abrasion by means of wet abrasive.
  • the dry blasting agent is by means of a vacuum sucked through the pipes.
  • the duration of the treatment is selected on the basis of the assessment based on the endoscopy from a range of 1 to 3 hours for aerating 3 to 8 hours for acid treatment 0.15 to 60 minutes for dry abrasion under vacuum 0.5 to 0.15 minutes for dry abrasion under compressed air 10 to 90 minutes for wet abrasion under compressed air 15 to 90 seconds for ultrasound 10 to 30 minutes for vibration
  • two or more cleaning treatments are carried out and at least once between the cleaning treatments, preferably in each case between two cleaning treatments, with the endoscope at least a location of the inner surface, preferably a critical point of the inner surface controlled.
  • the inner surface with both compressed air and with Vacuum abraded to evenly abrade the surfaces.
  • the pipeline with water before acid treatment filled pressurized the water and the pipe is checked for leaks.
  • the pipeline is advantageous with a hose and a container between a tapping point and the supply line to a circuit added.
  • This circuit is the acidic liquid from the container in the Pipe pumped in, and the acidic liquid as well optionally displaced from the pipeline water and detached deposits are left in the container.
  • the liquid in the container becomes chemicals, In particular, acid and / or defoamer added to the properties of the To influence liquid.
  • the liquid present in the container is expediently lye added and this so neutralized liquid pumped through the pipeline
  • a pH in the lye Range is set from 6 to 8.
  • the pipeline after the acid treatment and before the first abrasive cleaning rinsed with water.
  • a blasting hose is expediently connected to the dispensing point, a water-air mixture is blown in, and the water-air mixture blended over a selected duration abrasive, in particular blast furnace slag.
  • a selected duration abrasive, in particular blast furnace slag.
  • the water-air mixture is advantageously injected at a pressure between 1 and 3 x 10 5 Pa.
  • Blasting agent is preferably blast furnace slag mixed with a Granulation of 0.1 to 2 mm, preferably 0.25 to 1.4 mm used.
  • the pipe is preferably vacuum blasted with dry abrasive.
  • a vacuum is connected to one end of the pipeline and Blasting agent added at the opposite end of the pipeline.
  • the pipeline is so for 1 to 3 minutes vacuum blasted. The condition of the pipeline will be with you after cleaning controlled by an endoscope.
  • the curing of the coating by blowing heated air accelerates.
  • the pipeline is cured after curing Rinsed with water.
  • the piping system 11 shown in Figures 1 to 3 is a Drinking water supply of an apartment building with a basement floor 13, a ground floor 15 and an upper floor 17.
  • the house connection 19 for the Drinking water is in the basement floor 13 into the house. Shortly after that When entering the house, he owns a slide (not shown) for the duration of one Treatment of the piping system usually remains closed. In the presentation is the house connection therefore drawn detached from the piping system 11.
  • the illustrated piping system has four main branches A, B, C, D, e.g. three apartments (main branches B, C, D) and a common laundry room Supply (main branch A).
  • the main branches are from one Main connection line 21 branched off.
  • the branch points are A4, B6, C8 and D5 respectively.
  • At each main branch A, B, C, D there are several recipients or taps. These recipients or taps may be taps, Washing machines, dishwashers, boilers, etc. They are A1, A2, B1, B2, B3, C1, C2, C3, C4, D1, D2, D3.
  • the pipe from the pipe inlet A5 at the point where the water pipe is suspended from the house connection 19 until to the Bemanrn A1, A2, B1, B2, B3, C1, C2, C3, C4, D1, D2, D3 is branched into the Main branches A, B, C, D and subordinate branches.
  • the supply line to the recipient For example, C2 is again from such a subordinate branch diverted.
  • the branch points are at the child branches with A3, B4, B5, C7, C6, C5 and D4.
  • the line network to be treated by their supply line separated and it will be the fittings at the taps of Line network removed.
  • the line network is on the supply side at the Cable access with the largest cable cross-section to a vacuum connected.
  • taps which may be too may include remedial piping, by briefly opening the fitting be checked whether air is sucked or not. Should actually be at a such tapping point are sucked in air, the tapping point is part of the Transmission network. The valve must therefore be removed.
  • the dry lines are endoscopically treated before treatment. With the Endoscope is to be determined, in which state the line is. This Condition is the basis for a decision on how to proceed. Even an inspection of the pipe outlets and, if necessary, the attempt of one Endoscopy can lead to the realization that an endoscopy of all Pipe sections is not possible. But it can also be after one Endoscopy of a part of the pipeline network found that there is a There is a spot that is narrowed so that an endoscopy is no longer possible. is also only a pipe section so narrowed that an endoscopy is not possible, the system is, if necessary, acid treated and only after the Acid treatment endoscopically.
  • the line network can be endoscopically, then before any Treatment of the network with an endoscope an inventory of the State of the pipeline network performed. Leads to this inventory recognizing that at least one site of the pipeline network is acid-treated must be treated, the pipeline network must be acid-treated. It will, however only a small portion of the entire network acid-treated.
  • the line input A5 is, as shown in Figure 1, with a sealable, acid-resistant cock or slide 23 provided. At this slide 23, a flexible tube 25 is connected, the other end in a barrel 27 is guided. The barrel 27 is filled with a dilute acid 29.
  • the Composition of the acidic liquid is tap water with a Addition of 10% hydrochloric acid.
  • the piping system 11 is now connected to a circuit, by having a hose 31 at the farthest from the conduit entrance A5 Line output D1 is connected. The taps on the rest Line outlets are closed.
  • the tube 31 is an acid-resistant Pump 33 connected. This pump 33 draws the pumped liquid the barrel 27 and has in the barrel 27 reaching intake 35th Bei Branched piping 11 is also every main branch with a Hose 31 is connected to a circuit via the barrel 27 and the pump 33.
  • the present in the barrel 27 acidic liquid 29 with the pump 33rd sucked through the intake manifold 35 and through the hose 31, or through the hoses 31 the one or the hoses fed to connected line outputs. These are the taps to the connected line outputs A1, B1, C4, D1 opened.
  • This acidic liquid 29 now gives way to the deposits and Contaminations in the pipes. These deposited layers will be spongy and soft.
  • the duration of the acid treatment may vary depending on Type of deposits and amount of deposits.
  • Gas is created in the pipelines that escape from the piping system must be able to. To allow this, the liquid is circulated. In the open barrel the gas can escape from the liquid. It may also be necessary at occasionally vent gas to the taps so that the ends of the pipes run up to to the line outlet again filled with acidic liquid.
  • the acid treatment can be carried out for hours.
  • the Softening liquid can also be left overnight and unattended Pipeline system remain. However, it must be ensured that the emerging gas can not build up an overpressure in the piping system.
  • the liquid is in the Barrel neutralized. For example, 4% lye is added until the Liquid has a pH of about 7. With the pump 33 is now the neutralized fluid pumped into the circulation. For all cable outputs the acidic liquid is discharged until the neutralized liquid exit. The escaping acidic liquid is collected and can under Circumstances, or it will also be neutralized.
  • the liquid can be drained into the sewer. This is the Slider at the house connection 19 again opened and the water by all Pipelines sent. For this, all taps are opened until while One minute of clean water comes out. Now all water is drained and that Piping system 11 emptied into the sewer.
  • the piping system After acid treatment, in most cases the piping system will be sufficiently continuous to allow endoscopy. As soon as the lines can be penetrated with an endoscope, the endoscope will look at the inner surface of the pipeline system. Important and critical positions are photographically documented. The condition of the pipes is judged. This assessment forms the basis for a decision regarding the subsequent treatment step and the duration of treatment. The deposits in the pipes are softened after acid treatment and can be easily removed by abrasion. Even if no acid treatment has been carried out, the same process steps can now be carried out.
  • FIG. Of the Line input A5 is connected to a collecting tank 37.
  • One special cleaning device 39 is installed on the cleaning device 39 is a Blasting hose 41 connected.
  • the cleaning device 39 each has an output in the blasting hose 41 for compressed air, water and blasting agent. These three Media can be regulated individually.
  • Each line output A1, A2, B1, B2, B3, C1, C2, C3, C4, D1, D2, D3 is now treated as follows:
  • the blast hose 41 is connected to the line output.
  • the blasting hose is connected to the line outlet D3.
  • the dotted lines of the blast hose 41 represent the two previous ports to the line outlets D1 and D2.
  • a water-air mixture is first forced through the line from D3 to A5 for 1 to 2 minutes. In this case, parts of the deposits already dissolve and reach the collecting container 37.
  • the water-air mixture is blown with 1 to 2 ⁇ 10 5 Pa. Now blasting agent is added to the water-air mixture.
  • the resulting abrasive slurry is forced through the pipeline through the air, removing all deposits and crusts. During 1.5 minutes, a total of 9 kilograms of abrasive will be transported through the pipeline from D3 to A5. Subsequently, the pipeline is cleaned of the abrasive blasting medium by a water-air mixture is blown through the pipeline for one minute.
  • the mentioned mixture of water, air and blasting agent also allows for Cables with more than one inch in diameter, the inner surface of the tube uniformly clean, regardless of whether the inner surface is down or is directed upward.
  • the crusts in the pipeline have been softened so that they are already removed from 1 to 2 ⁇ 10 5 Pa after a very short, abrasive treatment of 1 to a maximum of 2 minutes at a relatively low pressure. If the tubes are not pre-treated with acid, a longer treatment time tends to be necessary.
  • wet abrasion treatment After the wet abrasion treatment become the critical and important Repeatedly controlled with the endoscope and preferably documented. Should it be determined that the treatment was not enough, will decided which additional treatment is performed. It is also possible to the wet abrasion treatment directly a dry Abrasionsb Stuttgart and only then with the endoscope the Result of both treatments. Wet and dry AbrasionsANen complement each other in such a way that with the one method poorly accessible areas are cleaned by the other method.
  • the pipelines can of such Freezing rust.
  • the pipelines can of such Freezing rust.
  • FIG 3 on Line input A5 connected to a vacuum device.
  • This one has one Pre-separator 47 and a vacuum pump 49 on.
  • With the vacuum device is generates a negative pressure in the piping system 11.
  • At each line output A1, A2, B1, B2, B3, C1, C2, C3, C4, D1, D2, D3 now become dry blasting agent sucked.
  • This will be the Dried pipe and free from rust.
  • the pipeline is for one Plastic coating prepared.
  • a control of critical points with the Endoscope will confirm this. Or it can be seen with the endoscope, that another treatment is necessary.
  • the type of treatment can due to the images obtained with the endoscopy.
  • the piping is not vacuum blasted, but only dried with vacuum. Again, a vacuum will be put on that Pipe system applied until the pipes are dry.
  • Copper pipes and plastic pipes are also becoming critical issues checked with the endoscope. This is done with a line output and / or introduced at the line entrance.
  • the coating of the pipeline is carried out as follows. Depending on Purpose of the pipeline are different laminates for Coating the inner surface of the pipeline used. The amount of Two-component resin, which is used as a laminate, is using a table and due to the length and diameter of the Coating pipe section determined.
  • a heater is connected to the line input and thus blown compressed air into the piping system with about 2.5 x 10 5 Pa.
  • the coating is then warmed to about 50 ° for about 3 to 4 hours.
  • the fittings can be mounted and the piping system flushed. After a one-hour rinse with tap water, the pipes can be put back into operation.

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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)
  • Cleaning In General (AREA)
EP20050405388 2004-06-25 2005-06-16 Procédé de traitement d'un tube à nettoyer Withdrawn EP1609540A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH10712004 2004-06-25
CH10712004 2004-06-25

Publications (1)

Publication Number Publication Date
EP1609540A2 true EP1609540A2 (fr) 2005-12-28

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Family Applications (1)

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EP20050405388 Withdrawn EP1609540A2 (fr) 2004-06-25 2005-06-16 Procédé de traitement d'un tube à nettoyer

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EP (1) EP1609540A2 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101637768B (zh) * 2009-08-26 2011-05-04 中国华冶科工集团有限公司 管道冲洗方法
CN102814310A (zh) * 2012-08-24 2012-12-12 中国华冶科工集团有限公司 汽轮发电机组润滑油管路系统的冲洗方法及装置
CN103028571A (zh) * 2013-01-07 2013-04-10 深圳市摩尔科技有限公司 一种管道冲洗装置及其冲洗方法
EP2586540A1 (fr) * 2011-10-27 2013-05-01 Manfred Völker Installation de rinçage
CN103350086A (zh) * 2013-01-28 2013-10-16 山东兴润建设有限公司 新工艺在大口径集中供热管网工程的应用
US20220323992A1 (en) * 2021-04-13 2022-10-13 Mizukami Paint Co., Ltd. Base material adjusting method
CN116967216A (zh) * 2023-09-25 2023-10-31 福建省德尚电子材料有限公司 一种光刻胶管路系统

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101637768B (zh) * 2009-08-26 2011-05-04 中国华冶科工集团有限公司 管道冲洗方法
EP2586540A1 (fr) * 2011-10-27 2013-05-01 Manfred Völker Installation de rinçage
CN102814310A (zh) * 2012-08-24 2012-12-12 中国华冶科工集团有限公司 汽轮发电机组润滑油管路系统的冲洗方法及装置
CN102814310B (zh) * 2012-08-24 2015-09-09 中国华冶科工集团有限公司 汽轮发电机组润滑油管路系统的冲洗方法及装置
CN103028571A (zh) * 2013-01-07 2013-04-10 深圳市摩尔科技有限公司 一种管道冲洗装置及其冲洗方法
CN103350086A (zh) * 2013-01-28 2013-10-16 山东兴润建设有限公司 新工艺在大口径集中供热管网工程的应用
US20220323992A1 (en) * 2021-04-13 2022-10-13 Mizukami Paint Co., Ltd. Base material adjusting method
CN116967216A (zh) * 2023-09-25 2023-10-31 福建省德尚电子材料有限公司 一种光刻胶管路系统
CN116967216B (zh) * 2023-09-25 2023-12-19 福建省德尚电子材料有限公司 一种光刻胶管路系统

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