EP2268424B1 - Procédé et dispositif de traitement de fluides passant par des canalisations - Google Patents

Procédé et dispositif de traitement de fluides passant par des canalisations Download PDF

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Publication number
EP2268424B1
EP2268424B1 EP09719856A EP09719856A EP2268424B1 EP 2268424 B1 EP2268424 B1 EP 2268424B1 EP 09719856 A EP09719856 A EP 09719856A EP 09719856 A EP09719856 A EP 09719856A EP 2268424 B1 EP2268424 B1 EP 2268424B1
Authority
EP
European Patent Office
Prior art keywords
pig
pipeline
fluid
pipelines
fluids
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.)
Not-in-force
Application number
EP09719856A
Other languages
German (de)
English (en)
Other versions
EP2268424A1 (fr
Inventor
Hartmut Evers
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.)
KHS GmbH
Original Assignee
KHS GmbH
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 KHS GmbH filed Critical KHS GmbH
Priority to SI200930219T priority Critical patent/SI2268424T1/sl
Publication of EP2268424A1 publication Critical patent/EP2268424A1/fr
Application granted granted Critical
Publication of EP2268424B1 publication Critical patent/EP2268424B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B08B9/043—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

Definitions

  • the invention relates to a method for the treatment of fluids carried in pipelines, in particular fluid mixtures of, for example, a product fluid and a cleaning fluid and / or two or more product fluids, after which at least one pig is moved inside the pipeline.
  • the treatment of piped fluids is not limited to the promotion of such fluids for filling, for example, containers or bottles.
  • a cleaning fluid which may be a liquid or a gas, such as water vapor.
  • Such methods are used in many ways, including only by way of example DE 197 06 578 A1 Reference is made, which deals with the beverage bottling and here in particular with a pressure surge compensation.
  • a pig inside the pipes is at least reciprocated.
  • the pig is used to clean the pipeline, as exemplified in the DE 10 2006 020 079 A1 or the DE 10 2006 020 079 A1 is described.
  • pigs can be used to test pipelines, such as the US 5,454,276 or even the DE 199 29 072 A1 reveal.
  • a pipeline pig by the DE 24 35 423 C2 which is used to indicate the distance between a point and one or more other points in the pipeline.
  • devices are finally known to detect the position of such a pig or pipe pig. This is done in such a way that a change of an electromagnetic field generated in the pipeline is registered by the presence of the metallic pig (see. JP 09287690 A ).
  • a pig which includes a signal generator, is out DE 10 2005 059 023 A1 known, this signal generator cooperates with a located in the pipe wall permeable window.
  • DE-A-3049014 is a pig revealed by magnetic fields in the tube is moved.
  • a newt is a device commonly used in gas, petroleum and product pipelines, ie in pipelines.
  • the pig more or less fills the cross-section of the pipe and either simply travels with the product stream through the pipe or is forced through the pipe with the help of extra pressure applied.
  • locks or pig traps are used, through which the pig is inserted into the pipeline and, for example, from the back is pressurized. Through such a lock, the pig can also be taken out.
  • the pigging technology is usually a conveying process for low-viscosity liquids but also for pasty media, powders, granules, etc. In addition to the promotion of the pig but also takes over service tasks and in particular the cleaning or measuring technology and detection of any pipe defects, as in the introduction has been described.
  • Newts have proven themselves in the described fields of use, but require for their drive either a flow of fluid guided inside the pipeline and / or a gas pressure flow as a propellant. Consequently, they have not been able to significantly affect the previously mentioned problems of lost fluid mixtures. This is where the invention starts.
  • the invention is based on the technical problem of further developing such a method for the treatment of fluids conveyed in pipelines so that unwanted fluid mixtures are reduced to a minimum in terms of their quantity and consequently the costs are minimized.
  • the design is usually made so that means are provided for generating the said electromagnetic field in order to ensure the contactless drive of the pig.
  • These means are, on the one hand, at least one switchable electromagnet and, on the other hand, at least one permanent magnet and / or one magnetisable element.
  • the permanent magnet or the magnetizable element is arranged in or on the pig, whereas the switchable electromagnet undergoes an arrangement in or on the pipeline. But it can also be reversed procedure, namely such that the pig has the switchable electromagnet, whereas the pipe is equipped with the permanent magnet and / or the magnetizable element.
  • This method or the corresponding device for the treatment of fluids conducted in pipelines is particularly suitable for fluid mixtures of a product fluid and a cleaning fluid and / or of two or more product fluids.
  • the pig is moved by means of non-contact electromagnetic forces inside the pipeline. Magnetic attraction and repulsion forces are mostly used here. Since the electromagnetic field is usually defined by means of the switchable electromagnet or magnets, its strength and / or duration can be changed in this way. It has proven to be altogether good if the pig is moved by a trained as a traveling field electromagnetic field. This can be realized, for example, in such a way that a plurality of switchable electromagnets are arranged one behind the other along the pipeline and energized in succession. As a result, the pig, which is usually equipped with the permanent magnet, can be gradually attracted to the individual magnetic fields generated by the electromagnets and thus follows the traveling electromagnetic field along the electromagnets.
  • the electromagnet generates a magnetic field with substantially in the interior of the pipeline extending in its longitudinal extent Field lines.
  • the permanent magnet or the magnetizable element (for example, an iron core) of the pig is largely arranged in its longitudinal extent and in the longitudinal direction of the pipeline. This results in the longitudinal extent of the pipeline and when the electromagnet is turned on to form a north and south pole or a sequence of such magnetic poles.
  • this temporary magnetic field generated by means of the electromagnet for example, the north pole belonging to the permanent magnet is attracted or repelled.
  • the permanent magnet (the magnetizable element) and the one or more electromagnets taken together constitute a linear motor in which the pipeline regularly contains the stator, whereas the permanent magnet (the magnetizable element) constitutes the rotor.
  • the operation is similar to the "Transrapid".
  • the speed of the pig depends on the frequency of the electromagnetic traveling field. This can be made available as a whole the electrical power supply for the electromagnet as a whole by a control unit with or without an integrated voltage source.
  • the permanent magnet or the iron core can be embedded in the pig, z. B. bring in plastic.
  • the pig can, for example, also be moved transversely to the longitudinal extent in a cross-sectional widened (holding) region of the pipeline and be held here. This procedure is recommended in the event that the entire cross-section of the pipeline is needed to guide the fluid. In this case, the determination of the pig in this cross-sectional extended (holding) area is basically possible both mechanically and electromagnetically.
  • the pig is regularly designed so that it closes the pipeline fluid-tight. In this way, the pig can not only separate different areas of the pipe from each other, but also be used to convey the fluid. The separation is usually made between two fluids.
  • two or more pigs can be used within the pipeline. These can be moved against each other. This defines a preferably sealed space of any expansion between the pigs. This gap can be evacuated, for example, which requires at least a lateral discharge in the gap.
  • the invention also provides a device for the treatment of fluids carried in pipelines, as described in claim 8. Furthermore, the use of a drivable by an electromagnetic field pig as a separating and / or conveying element for pipelined fluids according to claim 10.
  • a completely redesigned possibility is provided to treat fluids within pipelines and in particular to reduce unwanted fluid mixtures from their amount to a minimum or to adjust the fluid mixture in a targeted manner.
  • At least one non-contact reciprocating pig is located in the pipeline, which can separate individual areas of the pipeline from each other, for example.
  • the pig can be driven directly into the area of a supply line of a product fluid and blocks this supply line from the pipeline.
  • the pipe located beyond the pig can be flushed, for example, via a scavenging line, or other product fluid previously present in this pipeline can be easily withdrawn without the risk of mixing with the product fluid to be subsequently conveyed.
  • a valve located, for example, in the supply line of the product fluid. Because this valve can be attached only in the free area of the supply, so that still remain residual volumes in which cleaning liquid, another product fluid, etc. may be located.
  • the invention has deliberately solved because the leads can be shut off immediately and seen over their entire length.
  • The also manages with one or more pigs, thus requires no expensive and structurally complex valve technology. Incidentally, this can be Vorhell- or mixing stages represent, for example, by the pig opens the supply line with the product fluid slightly.
  • the one or more cross-sectional widened holding areas also ensure that the overall product guidance is not influenced.
  • the pipe is equipped if necessary with one or more locks in order to bring the pig according to the invention or pipe pig into the pipeline can.
  • the pig according to the invention can, of course, additionally be supplemented or alternatively flown through and driven by the fluid flowing in the pipeline.
  • the fluids are not limitative liquids, in principle, gases or even flowing solids, such as granules which can be promoted in this way.
  • the main benefits are not limitative liquids, in principle, gases or even flowing solids, such as granules which can be promoted in this way.
  • an apparatus for the treatment of guided in pipes 1 fluids is shown.
  • the fluids are, for example, beverages but also pharmaceutical liquids or generally product liquids which are conveyed via the pipeline 1 to a filling location or the like.
  • the treatment of fluid mixtures of, for example, a product fluid and a cleaning fluid, as it is connected to the pipeline 1 according to the Fig. 3 connected purge line 2 can be introduced into the pipe 1.
  • one another supply line 3 and a discharge line 4 which for the admission of the pipeline 1 with a gas and its deduction in the embodiment according to Fig. 3 be used.
  • the device shown essentially uses at least one pig 5 which is movable inside the pipeline 1 and is additionally equipped according to the invention with means 6, 7 which generate an electromagnetic field for non-contact driving of the pig 5.
  • the means 6, 7 are on the one hand to one or more switchable electromagnets 7 and on the other hand one or two permanent magnets 6.
  • the permanent magnet 6 is supported in or on the pig 5 or by this.
  • a plurality of electromagnets 7 are provided, which are acted upon by a combined control unit and voltage source 8 and arranged in longitudinal extension on the outer wall of the pipe 1.
  • the electromagnets 7 generate an in Fig. 1 only indicated magnetic field against which the pig 5 aligns with its permanent magnet or its two permanent magnets 6 and is moved.
  • a metallic core for the pig 5 is simply realized.
  • the procedure can also be reversed, namely that the pig 5 is equipped with a switchable electromagnet 7, whereas the pipeline 1 has the metallic core or permanent magnet 6.
  • a continuous movement of the pig 5 can be represented by the fact that with the aid of several electromagnets 7 in the longitudinal extension of the pipeline 1, an electromagnetic traveling field is generated.
  • This can be represented in the simplest case so that the electromagnets 7 are connected in series and then turned off, the pig 5 follows with its metallic core and the permanent magnet 6 this advancing electromagnetic field along the pipe 1 in its longitudinal extent. As a result, the pig 5 long ago the pipe 1 are moved back and forth.
  • the electromagnet 7 generates a magnetic field with field lines extending substantially in the interior of the pipeline 1 in its longitudinal extent, like the Fig. 1 makes it clear.
  • the design is usually made such that the permanent magnet 6 or the magnetizable material is largely arranged in the longitudinal extension of the pipe 1 and the pig 5.
  • each cross-sectional widened area 9 of the pipe 1 can be seen.
  • the cross-sectional widened area 9 acts in the illustration Fig. 2a ) in such a way that the pig 5 is moved back and forth only within this cross-sectional widened region 9 and has correspondingly differently configured sliding elements 10.
  • These sliding or supporting elements 10 are configured circumferentially, so that the pig 5, the pipe 1 as a whole closes fluid-tight. In this way, the pig 5 is able to separate and possibly different fluids located in the pipeline 1 from each other. It is also possible, with the aid of the non-contact driven pig 5 to promote a befindliches in the pipeline 1 fluid. So this does not need to be under pressure.
  • Fig. 2b acts the cross-sectional widened region 9 as a holding area for the pig 5, which can take a kind of rest position in this context.
  • the pig 5 can be moved in the cross-sectional widened (holding) area 9 of the pipeline 1 transversely to the longitudinal extent of the pipeline 1 and held in place.
  • This in turn is done by appropriate magnetic attraction forces with the help of a local special electromagnet 7 and two-sided electromagnet 7 are applied. Since there are electromagnets 7 on both sides of the pig 5 in the cross-sectional widened region 9, both magnetically attractive and repulsive forces can be built up, so that the pig 5 can be easily moved transversely to the longitudinal extension of the pipeline 1. Its definition can be done magnetically and / or mechanically on the wall of the pipe 1.
  • the left pig 5 is in a position in which it closes a supply line 11 for a first product fluid 11 ', whereas another Supply line 12 for a second product fluid 12 'is kept open.
  • the second product fluid 12 ' can be conveyed via the pipeline 1.
  • the pipeline 1 can be flushed via the gas supplied through the line 3 or else with the aid of a cleaning liquid via the flushing line 2.
  • this movement can be assisted by the linear drive as it were formed by the electromagnets 7 in conjunction with the magnetizable elements or permanent magnets 6 of the pig 5.
  • the right of the first pig 5 possibly existing second product fluid is displaced.
  • the second product fluid flows past the second pig 5, which is located in a local cross-sectional widened region 9 and generally releases the cross-section of the pipeline 1.
  • the pigs 5 can not be moved past each other, but this is of course provided in a variant, not shown.
  • the newts 5 themselves have previously been introduced into the pipeline 1 via a lock (not shown).
  • An additional end lock may provide for its removal from the pipeline 1.
  • the at least one pig 5 or ideally all pigs 5 is provided with a central conduit which leads from one end of the pig 5 to the other side of the pig 5, in the manner of a short-circuit line.
  • This line can be closed by means of at least one valve and can be at least partially opened. In the opened state of the valve, the fluid present in the pipeline 1 can flow through the pig 5.
  • valves are ideally designed as a safety valve, which depends on the fluid pressure in the pipe 1 or the pressure difference, which on both sides of the pig. 5 prevails, be opened in whole or in part. This makes it possible to drive the pig against a stagnant fluid without promoting the fluid or to prevent damage to the piping system safely.
  • one or both sides of the rupture element is provided, which must be renewed after the rupture.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Cleaning In General (AREA)
  • Pipeline Systems (AREA)

Claims (10)

  1. Procédé de traitement de fluides passant par des canalisations (1), selon lequel au moins un racleur (5) est déplacé sans contact à l'intérieur de la canalisation (1) au moyen d'un champ électromagnétique, le racleur (5) étant équipé d'au moins un élément magnétisable et/ou d'un aimant permanent (6), l'aimant ou l'élément interagissant avec au moins un électroaimant (7) disposé contre ou dans la canalisation (1), et le racleur (6) se déplaçant avec un champ électromagnétique d'ondes progressives agissant dans un sens longitudinal des canalisations (1), caractérisé en ce que le racleur (5) ferme la canalisation (1) de manière étanche aux fluides.
  2. Procédé selon la revendication 1, caractérisé en ce que l'élément magnétisable est disposé par rapport à l'aimant permanent (6) du racleur (5) en grande partie dans son extension longitudinale ainsi que dans l'extension longitudinale de la canalisation (1).
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que le racleur (5) se déplace et est maintenu immobilisé dans une zone ayant une section élargie (9) de la canalisation (1) transversalement à son extension longitudinale.
  4. Procédé selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le racleur (5) peut être mis en oeuvre pour le transport du fluide et/ou la séparation de deux fluides.
  5. Procédé selon l'une quelconque des revendications 1 à 4, caractérisé en ce qu'au moins deux racleurs (5) sont déplacés en sens opposé dans la canalisation (1) et que, de cette façon, ils définissent entre eux un espace intermédiaire, de préférence étanchéifié, d'une étendue quelconque.
  6. Procédé selon l'une quelconque des revendications 1 à 5, caractérisé en ce que les deux racleurs (5) ou plus peuvent être passés l'un à côté de l'autre dans la canalisation (1).
  7. Dispositif de traitement de fluides passant par des canalisations (1), en particulier des mélanges de fluides composés par exemple d'un produit fluide et d'un fluide de nettoyage et/ou de deux produits fluides ou plus, avec au moins un racleur (5) déplaçable à l'intérieur de la canalisation (1), des moyens (6, 7) pour générer un champ électromagnétique destiné à l'entraînement sans contact du racleur (5) étant prévus pour exécuter le procédé selon l'une quelconque des revendications 1 à 6, les moyens (6, 7) étant conçus d'un côté au moins sous la forme d'un électroaimant activable (7) et, d'un autre côté, au moins sous la forme d'un élément magnétisable et/ou d'un aimant permanent (6), qui sont disposés d'une part dans ou sur le racleur (5) et, d'autre part, dans ou contre la canalisation (1), et le racleur (5) se déplaçant avec un champ électromagnétique d'ondes progressives agissant dans un sens longitudinal des canalisations (1), caractérisé en ce que le racleur (5) ferme la canalisation (1) de manière étanche aux fluides.
  8. Dispositif selon la revendication 7, caractérisé en ce qu'au moins un racleur (5) comporte une conduite centrale qui va d'une extrémité du racleur (5) à l'autre côté du racleur (5) et qui peut être fermée et au moins partiellement ouverte à l'aide d'au moins une soupape de sorte que le fluide présent dans la canalisation (1) puisse s'écouler à travers le racleur (5) lorsque la soupape est ouverte.
  9. Dispositif selon la revendication 8, caractérisé en ce que la soupape est une soupape de sûreté qui est entièrement ou partiellement ouverte en fonction de la pression du fluide dans la canalisation (1) ou de la différence de pression, qui règne de chaque côté du racleur (5).
  10. Dispositif selon la revendication 7, caractérisé en ce qu'au moins un racleur (5) comporte une conduite centrale qui va d'une extrémité du racleur (5) à l'autre côté du racleur (5) et qui contient au moins un élément d'éclatement qui ferme la conduite lors du fonctionnement régulier.
EP09719856A 2008-03-12 2009-02-25 Procédé et dispositif de traitement de fluides passant par des canalisations Not-in-force EP2268424B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI200930219T SI2268424T1 (sl) 2008-03-12 2009-02-25 Postopek in naprava za obdelavo po cevovodih vodenih fluidov

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008013963A DE102008013963B3 (de) 2008-03-12 2008-03-12 Verfahren und Vorrichtung zur Behandlung von in Rohrleitungen geführten Fluiden
PCT/EP2009/001311 WO2009112148A1 (fr) 2008-03-12 2009-02-25 Procédé et dispositif de traitement de fluides passant par des canalisations

Publications (2)

Publication Number Publication Date
EP2268424A1 EP2268424A1 (fr) 2011-01-05
EP2268424B1 true EP2268424B1 (fr) 2012-02-01

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Application Number Title Priority Date Filing Date
EP09719856A Not-in-force EP2268424B1 (fr) 2008-03-12 2009-02-25 Procédé et dispositif de traitement de fluides passant par des canalisations

Country Status (5)

Country Link
EP (1) EP2268424B1 (fr)
AT (1) ATE543582T1 (fr)
DE (1) DE102008013963B3 (fr)
SI (1) SI2268424T1 (fr)
WO (1) WO2009112148A1 (fr)

Cited By (1)

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CN109282508A (zh) * 2018-08-28 2019-01-29 吴承章 一种太阳能热水器

Families Citing this family (4)

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CN103781631B (zh) * 2011-09-02 2016-10-12 Khs有限责任公司 用于处理包装物品的装置以及用于包装物品的保持与对中单元
CN106224783B (zh) * 2016-09-08 2019-01-18 湖北工业大学 一种磁力驱动管道检测装置
CN107377545A (zh) * 2017-09-13 2017-11-24 京东方科技集团股份有限公司 对干泵的尾气管道进行清洁的方法及进行清洁的装置
CN111121294B (zh) * 2019-12-26 2021-12-10 北京拓首能源科技股份有限公司 一种焦化加热炉的注油套管

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Also Published As

Publication number Publication date
DE102008013963B3 (de) 2009-07-30
EP2268424A1 (fr) 2011-01-05
SI2268424T1 (sl) 2012-05-31
WO2009112148A1 (fr) 2009-09-17
ATE543582T1 (de) 2012-02-15

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