EP1818113A1 - Machine pour désincruster des systèmes ou circuits de tuyaux - Google Patents

Machine pour désincruster des systèmes ou circuits de tuyaux Download PDF

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Publication number
EP1818113A1
EP1818113A1 EP06380032A EP06380032A EP1818113A1 EP 1818113 A1 EP1818113 A1 EP 1818113A1 EP 06380032 A EP06380032 A EP 06380032A EP 06380032 A EP06380032 A EP 06380032A EP 1818113 A1 EP1818113 A1 EP 1818113A1
Authority
EP
European Patent Office
Prior art keywords
solvent
mixture
air
pipe
pressure
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.)
Granted
Application number
EP06380032A
Other languages
German (de)
English (en)
Other versions
EP1818113B1 (fr
Inventor
Felipe Romero Huesca
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DE602006021133T priority Critical patent/DE602006021133D1/de
Priority to AT06380032T priority patent/ATE504365T1/de
Priority to EP06380032A priority patent/EP1818113B1/fr
Publication of EP1818113A1 publication Critical patent/EP1818113A1/fr
Application granted granted Critical
Publication of EP1818113B1 publication Critical patent/EP1818113B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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    • 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
    • B08B9/0325—Control mechanisms therefor
    • 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
    • B08B9/0327—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 the fluid being in the form of a mist

Definitions

  • the present invention describes an un-incrusting system for the piping circuits that transport materials like paints, oils, waxes, liquid plastics, and any other substance that can get incrusted onto the pipe walls and therefore decreasing the net cross section of the pipes.
  • the technical area to which this technology belongs to is the cleaning of incrusted materials in internal walls of pipe systems. Especially when these materials are of a very difficult removal, like a greasy material, a solidified plastic, paint incrusting, residues of fuel, amongst others.
  • a clear example, but not limited to this, of this application is the color change procedure carried out in a paint system of an automotive paint plant.
  • a third method deals with introducing a big volume of solvent into the system, and then pushing it by using a high-pressure gas. This process achieves an adequate cleaning, but it spends great amounts of solvent and the piping resistance might get affected by the pressure inserted by the gas into the pipe system, so this has to be disassembled to proceed with this type of cleaning.
  • the present invention refers to a pipe cleaning system that works by injecting a pressurized mixture of solvent and a gas (compressed air) at the same time (liquid-gas phase). By doing this, the amount of solvent required is greatly reduced, providing by this, better safety and health conditions to the workers involved. Besides, this system does not require the piping to be disassembled, but it is applied on-site as it is, reducing a big deal the complexity of the cleaning, the shut-down time of the system and facilities in which this pipe circuit is a part of.
  • the combination of pressurized compressed air with the cleaning solvent assures a very effective (it removes 98% of the incrusted residues) and fast cleaning, given that this process combines chemical and mechanical cleaning reducing by this the facilities shut-down time, by far.
  • VOC's Volatile Organic Chemicals
  • This system includes ways to increase the pressure (generally a pump) which takes the solvent from a tank through a solvent intake.
  • a pump which takes the solvent from a tank through a solvent intake.
  • an air booster which is a device to distribute and enrich the compressed air flow, this is like a diaphragm compressor that sends the compressed air to different applications within the machine.
  • the proportion of these elements in the mixture can be controlled by their respective actuators (a valve controlled by pneumatic signals) that regulate the air and solvent flow.
  • the mixture passes through the exit sight gauge and then is introduced into the piping system to be cleaned. It is highly recommendable that the mixture be introduced into the system at a speed between 40 to 70 meters/second, this velocity will guarantee the un-incrusting of the residues in the pipe walls of the system. To achieve this, the pressure of the mixture must be introduced between 5 and 15 bars (500-1500KPa) and even more frequently between 6 and 10 bars (600 - 1000 KPa).
  • the standard invention incorporates the Teflon PTFE (Polytetrafluoroethylene) sight gauge in between the exit connection of the system and the filtration system of the machine, so the exit of the dirty air-solvent mixture can be seen and optically evaluated, for instance, how dirty it comes out. It is highly recommended that the Teflon used in the sight gauges be of the PTFE composition so nothing adheres to it, so nothing corrupts the visual inspection.
  • Teflon PTFE Polytetrafluoroethylene
  • the solvent intake (2) can be done, for better safety purposes, with a Kamlock quick connection.
  • a solvent actuator a set of a valve with a pneumatic mechanism to operate it
  • a check valve (7) that only allows flow forward, and avoids the return of the solvent either dirty or mixed with the gas.
  • the compressed air goes through a microfilter (4) to eliminate dirt particles contained in it, after this, it passes through an air booster, which is an air distributor and enricher, that allows to controls the inlet pressure to the needs of the pipe system to be clean.
  • This device can be, for instance, a diaphragm compressor.
  • both lines get together to produce the mixture compressed air-solvent, that is injected through inlet (10), a Kamlock connection for instance, into the piping system to be un-incrusted.
  • the mixture be injected at an average speed between 40 to 70 m/s, with these conditions, the mechanical removal of the incrusted materials is optimized without having a pressure drop, therefore, not requiring too high injecting pressures.
  • the injecting pressure of the mixture must be between 5-15 Bars (500 - 1500 KPa), but more optimal between 6 -10 Bars (600 - 1000 KPa).
  • a set of manometers and pressure transducers are installed (12) (only a few of them have been indicated in the diagram) at the exit of the pump (1) and the device (5) . According to the signals of these instruments, the opening of closing of the actuators (6) to regulate the mixture, must be decided in the pneumatic control panel.
  • the system includes relief valves, in order to depressurize the pipe system connecting lines when needed.
  • purge valves (9) are also installed before the solvent actuators (6) and after the junction point of the mixture air-solvent. These valves have the safety function of depressurizing the system when changes in the pipe system connections need to be made.
  • the outcoming mixture passes through a filtration system (22) to retain part of the residues removed, and after here, the mixture continues his way to a waste collection tank (23) for its final treatment.
  • a waste collection tank (23) for its final treatment.
  • the solvent emissions to the working atmosphere are eliminated, and also those to the environment.
  • the waste collection tanks are part of the facilities to be clean and they are usually of a big capacity.
  • the filter bag of the filtration system (22) might have, for instance, a mesh size of between 10 - 25 microns. Even with this small size, the amount of retained residues is small due to the fact that the incrusted residues are completely disintegrated once they get in touch with the high-speed air-solvent mixture of our system.
  • These safety systems include the hermetic and pressurized cabinets (30, 40) that completely isolate the electronic and electric equipment, like the CPU (31) that operates the system, the equipment that allows to introduce commands to the operating system, like the touch pad screen (32), that can be accessed from the outside or any other electrovalve required.
  • All this system can get installed on a portable equipment, that can get transported on-site where the pipe systems need to be clean.
  • the pipe systems can be cleaned by applicating the regular forward flow path (forward flush), or backwards flow path (back flush), reaching by these improvements a cleaning efficiency of between, 95-99% (of all incrusted residues removal).
  • outlet (10) is installed, at the entry of the system that has to be clean, a set of valves are opened or closed in the piping system, with the purpose of selecting the piping flow path (8) that our cleaning mixture must follow, and there is a second outlet (20) at the exit of the system, to collect the mixture air-solvent and the residues removed.
  • the injection can be carried out on a forward or a backwards flush mode.
EP06380032A 2006-02-13 2006-02-13 Machine pour désincruster des systèmes ou circuits de tuyaux Not-in-force EP1818113B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE602006021133T DE602006021133D1 (de) 2006-02-13 2006-02-13 Maschine zur Entfernung von Ablagerungen in Rohrleitungen
AT06380032T ATE504365T1 (de) 2006-02-13 2006-02-13 Maschine zur entfernung von ablagerungen in rohrleitungen
EP06380032A EP1818113B1 (fr) 2006-02-13 2006-02-13 Machine pour désincruster des systèmes ou circuits de tuyaux

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP06380032A EP1818113B1 (fr) 2006-02-13 2006-02-13 Machine pour désincruster des systèmes ou circuits de tuyaux

Publications (2)

Publication Number Publication Date
EP1818113A1 true EP1818113A1 (fr) 2007-08-15
EP1818113B1 EP1818113B1 (fr) 2011-04-06

Family

ID=36716719

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06380032A Not-in-force EP1818113B1 (fr) 2006-02-13 2006-02-13 Machine pour désincruster des systèmes ou circuits de tuyaux

Country Status (3)

Country Link
EP (1) EP1818113B1 (fr)
AT (1) ATE504365T1 (fr)
DE (1) DE602006021133D1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107350231A (zh) * 2017-08-25 2017-11-17 山东豪迈化工技术有限公司 一种微反应设备的管路清洗方法及系统
CN110201949A (zh) * 2018-09-10 2019-09-06 西安华江环保科技股份有限公司 一种易堵塞管道冲洗装置及工艺
CN110328200A (zh) * 2019-07-02 2019-10-15 河南开祥精细化工有限公司 一种管线脱油系统及其方法

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0244811A2 (fr) * 1986-05-05 1987-11-11 Grünbeck Wasseraufbereitung GmbH Installation pour le nettoyage des tuyauteries
US4919154A (en) * 1988-02-29 1990-04-24 Engle Thomas B Pipe purging assembly and method therefor
US5024245A (en) * 1989-12-11 1991-06-18 Jay Sr Jerry L Pneumatic desedimentation machine improvement
WO1992005888A1 (fr) 1990-10-04 1992-04-16 Johan Faxon Appareil servant a nettoyer des tuyauteries
US5615695A (en) * 1995-12-15 1997-04-01 Chambers; Harvey E. Pulsater fluid system flusher
EP0767010A1 (fr) * 1995-10-05 1997-04-09 Ryobi Ltd. Procédé et système pour le nettoyage d'un passage de liquide au moyen de pression négative
DE19701010A1 (de) * 1997-01-14 1998-07-16 Josef Stoeckl Verfahren zur Sanierung der Innenwände festverlegter Rohrleitungen
EP0864378A1 (fr) * 1997-03-14 1998-09-16 Walter Lippuner Dispositif de nettoyage pour conduits d'huile
EP1131169A1 (fr) 1998-11-18 2001-09-12 Taifun Engineering Oy Ltd. Procede et appareil de nettoyage des reseaux de canalisations industriels
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

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0244811A2 (fr) * 1986-05-05 1987-11-11 Grünbeck Wasseraufbereitung GmbH Installation pour le nettoyage des tuyauteries
US4919154A (en) * 1988-02-29 1990-04-24 Engle Thomas B Pipe purging assembly and method therefor
US5024245A (en) * 1989-12-11 1991-06-18 Jay Sr Jerry L Pneumatic desedimentation machine improvement
WO1992005888A1 (fr) 1990-10-04 1992-04-16 Johan Faxon Appareil servant a nettoyer des tuyauteries
EP0767010A1 (fr) * 1995-10-05 1997-04-09 Ryobi Ltd. Procédé et système pour le nettoyage d'un passage de liquide au moyen de pression négative
US5615695A (en) * 1995-12-15 1997-04-01 Chambers; Harvey E. Pulsater fluid system flusher
DE19701010A1 (de) * 1997-01-14 1998-07-16 Josef Stoeckl Verfahren zur Sanierung der Innenwände festverlegter Rohrleitungen
EP0864378A1 (fr) * 1997-03-14 1998-09-16 Walter Lippuner Dispositif de nettoyage pour conduits d'huile
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
EP1131169A1 (fr) 1998-11-18 2001-09-12 Taifun Engineering Oy Ltd. Procede et appareil de nettoyage des reseaux de canalisations industriels

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107350231A (zh) * 2017-08-25 2017-11-17 山东豪迈化工技术有限公司 一种微反应设备的管路清洗方法及系统
CN110201949A (zh) * 2018-09-10 2019-09-06 西安华江环保科技股份有限公司 一种易堵塞管道冲洗装置及工艺
CN110328200A (zh) * 2019-07-02 2019-10-15 河南开祥精细化工有限公司 一种管线脱油系统及其方法

Also Published As

Publication number Publication date
DE602006021133D1 (de) 2011-05-19
EP1818113B1 (fr) 2011-04-06
ATE504365T1 (de) 2011-04-15

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