EP0490117A1 - Procédé de nettoyage de conduit - Google Patents
Procédé de nettoyage de conduit Download PDFInfo
- Publication number
- EP0490117A1 EP0490117A1 EP91119494A EP91119494A EP0490117A1 EP 0490117 A1 EP0490117 A1 EP 0490117A1 EP 91119494 A EP91119494 A EP 91119494A EP 91119494 A EP91119494 A EP 91119494A EP 0490117 A1 EP0490117 A1 EP 0490117A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- liquid
- flow
- gas
- pipeline
- pipe
- 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- Withdrawn
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims description 19
- 239000012530 fluid Substances 0.000 claims abstract description 10
- 239000007788 liquid Substances 0.000 claims description 69
- 230000005514 two-phase flow Effects 0.000 claims description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 230000014509 gene expression Effects 0.000 claims description 6
- 238000007664 blowing Methods 0.000 claims 1
- 239000007789 gas Substances 0.000 description 39
- 238000010586 diagram Methods 0.000 description 10
- 239000012071 phase Substances 0.000 description 10
- 239000010408 film Substances 0.000 description 6
- 244000089486 Phragmites australis subsp australis Species 0.000 description 5
- 239000006260 foam Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 239000007791 liquid phase Substances 0.000 description 3
- 239000010409 thin film Substances 0.000 description 3
- 230000007704 transition Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000011086 high cleaning Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000005501 phase interface Effects 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 239000012047 saturated solution Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
Images
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
- B08B9/057—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 being entrained discrete elements, e.g. balls, grinding elements, brushes
-
- 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
- B08B9/0328—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 by purging the pipe with a gas or a mixture of gas and liquid
-
- 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
Definitions
- the nozzle 11 is inclined against the pipe axis 12 at an angle ⁇ (preferably 45 °) and / or opens tangentially into the pipe circumference, less is required Apply energy through the gas to produce the ring flow; the pressure loss along the pipeline is lower.
- G L ⁇ ⁇ B ⁇ ⁇ B /G G on the abscissa is plotted against the expression G G / ⁇ B , where ⁇ is a density and ⁇ a toughness surface tension parameter.
- G L and G G are the mass flows for liquid or gas in lb / h ⁇ ft2 and ⁇ B and ⁇ B are through Are defined.
- ⁇ are the density values, ⁇ the surface tension, and ⁇ the viscosity of the liquid.
- the indices A and W denote the values for air and water, respectively; L and G, as already stated above, those for liquid and gas.
- FIG. 6 shows the mass flow G L calculated for a selected operating point 16 in the Baker diagram (FIG. 4) for water with different pipe diameters.
- the horizontal ring flow which is fundamentally to be regarded as unstable, proves to be substantially more stable if the horizontal pipe is flowed through after a vertical pipe section; longer horizontal pipe sections should therefore be able to flow through according to vertical pipe sections, which should be taken into account when designing a pipe system to be cleaned in the manner according to the invention.
- FIG. 7 shows a simplified system for carrying out the method, with a conveying pipeline 101 (which corresponds to the pipe 1 of FIGS. 1 to 3), into which normally conveyed material is fed from a feed container 17 in a known manner in an initial section 201.
- This initial section 201 is connected to a non-conveying line section 301 with a blower 18 as a compressed gas source (generally compressed air source, unless another gas, such as inert gas, is used for special reasons).
- the conveyance takes place via a steep section 401 and a pipe diverter 19, which is only schematically indicated, into a separator (cyclone) 20.
- the pipe switch 19 is changed over in such a way that the cleaning liquid (water, cleaning or solvent or the like) is fed to a separator 21.
- Both separators 20, 21 are connected via discharge lines 22 to a gas discharge, not shown, which can optionally be common to both separators 20, 21 and, if necessary, also has a suction fan.
- the pressure blower 18, possibly together with such suction blowers, is designed and dimensioned such that the two-phase flow explained above is established.
- a pump 24 connected to a liquid supply 23 is activated, which pumps the cleaning liquid into the pipeline 101 in the manner described above at a point conveniently located in the initial region 201.
- the connection the pump 24 is provided via a supply line 111 at a point which is after the mouth of the feed elbow 26 emanating from the container 17 (only indicated by dash-dotted lines), but it may be desirable to provide the mouth of the line 111 in front of the elbow 26.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Cleaning In General (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH3947/90 | 1990-12-13 | ||
| CH394790 | 1990-12-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP0490117A1 true EP0490117A1 (fr) | 1992-06-17 |
Family
ID=4266910
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP91119494A Withdrawn EP0490117A1 (fr) | 1990-12-13 | 1991-11-15 | Procédé de nettoyage de conduit |
Country Status (1)
| Country | Link |
|---|---|
| EP (1) | EP0490117A1 (fr) |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2700716A1 (fr) * | 1993-01-26 | 1994-07-29 | Mpi Creations Sarl | Installation, pour le transport et la collecte, de résidus alimentaires, dans le cadre de collectivités de restauration. |
| EP0829695A1 (fr) * | 1996-03-18 | 1998-03-18 | Gosudarstvenny Nauchny Tsentr Fiziko-Energetichesky Institut | Procede de nettoyage des surfaces internes d'un systeme de circulation en acier faisant appel a un caloriporteur consistant en un metal liquide a base de plomb |
| DE29817596U1 (de) * | 1998-10-03 | 2000-01-05 | Richter, Zdenek, 87719 Mindelheim | Reinigungsvorrichtung für eine Rohrleitung, insbesondere Abwasserleitung |
| WO2000000306A1 (fr) * | 1998-06-29 | 2000-01-06 | Intel Sampling A/S | Procede et appareil de traitement de surfaces interieures dans un systeme fluide en circuit ferme |
| US6619302B2 (en) | 1997-06-23 | 2003-09-16 | Princeton Trade & Technology, Inc | Cleaning composition and apparatus for removing biofilm and debris from lines and tubing and method therefor |
| US6857436B2 (en) | 1997-06-23 | 2005-02-22 | Princeton Trade & Technology, Inc. | Method of cleaning passageways using a mixed phase flow of a gas and a liquid |
| US6945257B2 (en) | 1997-06-23 | 2005-09-20 | Princeton Trade & Technology | Method for cleaning hollow tubing and fibers |
| US7220358B2 (en) | 2004-02-23 | 2007-05-22 | Ecolab Inc. | Methods for treating membranes and separation facilities and membrane treatment composition |
| US7247210B2 (en) | 2004-02-23 | 2007-07-24 | Ecolab Inc. | Methods for treating CIP equipment and equipment for treating CIP equipment |
| EP1932601A1 (fr) * | 2006-12-15 | 2008-06-18 | Honeywell International Inc. | Système et procédé pour nettoyer des systèmes de boue de polissage chimico-mécanique |
| US7392811B2 (en) | 2004-02-23 | 2008-07-01 | Ecolab Inc. | Delivery head for multiple phase treatment composition, vessel including a delivery head, and method for treating a vessel interior surface |
| EP2058086A1 (fr) * | 2006-09-01 | 2009-05-13 | Sumitomo Metal Industries Limited | Appareil de décapage de la surface interne de tubes en acier, procédé de décapage de la surface interne de tubes en acier et procédé de fabrication d'un tube en acier dont la surface interne présente d'excellentes propriétés de surface |
| US7862660B2 (en) | 2007-01-12 | 2011-01-04 | Princeton Trade & Technology, Inc. | Device and method for fluid dynamics cleaning of constrained spaces |
| US8114221B2 (en) * | 2008-09-30 | 2012-02-14 | Princeton Trade & Technology, Inc. | Method and composition for cleaning tubular systems employing moving three-phase contact lines |
| EP2896601A2 (fr) | 2013-12-30 | 2015-07-22 | Ecolab USA Inc. | Procédé de réduction de l'utilisation d'eau industrielle |
| WO2016108984A1 (fr) | 2014-12-31 | 2016-07-07 | Ecolab Usa Inc. | Procédé multifonctionnel pour protection et contrôle d'encrassement biologique de membrane |
| US9636721B2 (en) | 2014-04-16 | 2017-05-02 | Quickdraft, Inc. | Method and clean-in-place system for conveying tubes |
| WO2019116154A1 (fr) * | 2017-12-11 | 2019-06-20 | Nova Chemicals (International) S.A. | Procédé d'élimination de la crasse en aval d'un réacteur d'odh |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE893595C (de) * | 1951-12-29 | 1953-10-19 | Adalbert Besta | Verfahren zum Loesen und Entfernen von Ablagerungen und Anlagerungen in Kanaelen und Rohren |
-
1991
- 1991-11-15 EP EP91119494A patent/EP0490117A1/fr not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE893595C (de) * | 1951-12-29 | 1953-10-19 | Adalbert Besta | Verfahren zum Loesen und Entfernen von Ablagerungen und Anlagerungen in Kanaelen und Rohren |
Non-Patent Citations (2)
| Title |
|---|
| G.F.HEWITT ET AL. 'annular two-phase flow' 1970 , PERGAMON PRESS , OXFORD * |
| SOVIET INVENTIONS ILLUSTRATED Section PQ, Week 8423, 18. Juli 1984 Derwent Publications Ltd., London, GB; Class P43, Page 13, AN 84-145538/23 & SU-A-1 042 826 (GAVRILENKO SI) 23. September 1983 * |
Cited By (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2700716A1 (fr) * | 1993-01-26 | 1994-07-29 | Mpi Creations Sarl | Installation, pour le transport et la collecte, de résidus alimentaires, dans le cadre de collectivités de restauration. |
| EP0829695A1 (fr) * | 1996-03-18 | 1998-03-18 | Gosudarstvenny Nauchny Tsentr Fiziko-Energetichesky Institut | Procede de nettoyage des surfaces internes d'un systeme de circulation en acier faisant appel a un caloriporteur consistant en un metal liquide a base de plomb |
| EP0829695A4 (fr) * | 1996-03-18 | 2000-02-23 | G Nauchny Ts Fiz Energet I | Procede de nettoyage des surfaces internes d'un systeme de circulation en acier faisant appel a un caloriporteur consistant en un metal liquide a base de plomb |
| US6619302B2 (en) | 1997-06-23 | 2003-09-16 | Princeton Trade & Technology, Inc | Cleaning composition and apparatus for removing biofilm and debris from lines and tubing and method therefor |
| US6857436B2 (en) | 1997-06-23 | 2005-02-22 | Princeton Trade & Technology, Inc. | Method of cleaning passageways using a mixed phase flow of a gas and a liquid |
| US6945257B2 (en) | 1997-06-23 | 2005-09-20 | Princeton Trade & Technology | Method for cleaning hollow tubing and fibers |
| US7367346B2 (en) | 1997-06-23 | 2008-05-06 | Princeton Trade & Technology, Inc. | Method for cleaning hollow tubing and fibers |
| WO2000000306A1 (fr) * | 1998-06-29 | 2000-01-06 | Intel Sampling A/S | Procede et appareil de traitement de surfaces interieures dans un systeme fluide en circuit ferme |
| GB2353838A (en) * | 1998-06-29 | 2001-03-07 | Intel Sampling As | Method and apparatus for treatment of internal surfaces in a closed-loop fluid system |
| GB2353838B (en) * | 1998-06-29 | 2002-02-13 | Intel Sampling As | Method and apparatus for treatment in the form of scale removal from, or application of coating to, internal surfaces in a closed fluid system |
| US6423152B1 (en) | 1998-06-29 | 2002-07-23 | Intel Sampling As | Method and apparatus for treatment of internal surfaces in a closed-loop fluid system |
| DE29817596U1 (de) * | 1998-10-03 | 2000-01-05 | Richter, Zdenek, 87719 Mindelheim | Reinigungsvorrichtung für eine Rohrleitung, insbesondere Abwasserleitung |
| US7247210B2 (en) | 2004-02-23 | 2007-07-24 | Ecolab Inc. | Methods for treating CIP equipment and equipment for treating CIP equipment |
| US7392811B2 (en) | 2004-02-23 | 2008-07-01 | Ecolab Inc. | Delivery head for multiple phase treatment composition, vessel including a delivery head, and method for treating a vessel interior surface |
| US7220358B2 (en) | 2004-02-23 | 2007-05-22 | Ecolab Inc. | Methods for treating membranes and separation facilities and membrane treatment composition |
| EP2058086A4 (fr) * | 2006-09-01 | 2012-08-22 | Sumitomo Metal Ind | Appareil de décapage de la surface interne de tubes en acier, procédé de décapage de la surface interne de tubes en acier et procédé de fabrication d'un tube en acier dont la surface interne présente d'excellentes propriétés de surface |
| EP2058086A1 (fr) * | 2006-09-01 | 2009-05-13 | Sumitomo Metal Industries Limited | Appareil de décapage de la surface interne de tubes en acier, procédé de décapage de la surface interne de tubes en acier et procédé de fabrication d'un tube en acier dont la surface interne présente d'excellentes propriétés de surface |
| EP1932601A1 (fr) * | 2006-12-15 | 2008-06-18 | Honeywell International Inc. | Système et procédé pour nettoyer des systèmes de boue de polissage chimico-mécanique |
| US8012266B2 (en) | 2006-12-15 | 2011-09-06 | Honeywell International Inc. | System and method for scrubbing CMP slurry systems |
| US7862660B2 (en) | 2007-01-12 | 2011-01-04 | Princeton Trade & Technology, Inc. | Device and method for fluid dynamics cleaning of constrained spaces |
| US8114221B2 (en) * | 2008-09-30 | 2012-02-14 | Princeton Trade & Technology, Inc. | Method and composition for cleaning tubular systems employing moving three-phase contact lines |
| US9492853B2 (en) | 2008-09-30 | 2016-11-15 | Olympus Corporation | Method for composition for cleaning tubular systems employing moving three-phase lines |
| EP2896601A2 (fr) | 2013-12-30 | 2015-07-22 | Ecolab USA Inc. | Procédé de réduction de l'utilisation d'eau industrielle |
| US9636721B2 (en) | 2014-04-16 | 2017-05-02 | Quickdraft, Inc. | Method and clean-in-place system for conveying tubes |
| WO2016108984A1 (fr) | 2014-12-31 | 2016-07-07 | Ecolab Usa Inc. | Procédé multifonctionnel pour protection et contrôle d'encrassement biologique de membrane |
| WO2019116154A1 (fr) * | 2017-12-11 | 2019-06-20 | Nova Chemicals (International) S.A. | Procédé d'élimination de la crasse en aval d'un réacteur d'odh |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL SE |
|
| 17P | Request for examination filed |
Effective date: 19920814 |
|
| 17Q | First examination report despatched |
Effective date: 19931008 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 19940221 |