DE4140378A1 - Pipe cleaning, testing and drying system used during mfr and maintenance - pumps cleaning liquids through system whilst applying ultrasound via contact liquid - Google Patents

Pipe cleaning, testing and drying system used during mfr and maintenance - pumps cleaning liquids through system whilst applying ultrasound via contact liquid

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Publication number
DE4140378A1
DE4140378A1 DE4140378A DE4140378A DE4140378A1 DE 4140378 A1 DE4140378 A1 DE 4140378A1 DE 4140378 A DE4140378 A DE 4140378A DE 4140378 A DE4140378 A DE 4140378A DE 4140378 A1 DE4140378 A1 DE 4140378A1
Authority
DE
Germany
Prior art keywords
cleaning
pipe
testing
contact liquid
liquids
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Withdrawn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
DE4140378A
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German (de)
Inventor
Hans Dr Ing Hoyer
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Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DE4140378A priority Critical patent/DE4140378A1/en
Publication of DE4140378A1 publication Critical patent/DE4140378A1/en
Withdrawn legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/02Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027Cleaning the internal surfaces; Removal of blockages
    • B08B9/032Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
    • B08B9/0321Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
    • B08B9/0323Arrangements specially designed for simultaneous and parallel cleaning of a plurality of conduits
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/02Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027Cleaning the internal surfaces; Removal of blockages
    • B08B9/032Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
    • B08B9/0321Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
    • B08B9/0328Cleaning 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
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28GCLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
    • F28G7/00Cleaning by vibration or pressure waves
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B08CLEANING
    • B08BCLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B2209/00Details of machines or methods for cleaning hollow articles
    • B08B2209/005Use of ultrasonics or cavitation, e.g. as primary or secondary action

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Cleaning In General (AREA)
  • Cleaning By Liquid Or Steam (AREA)

Abstract

The system pumps (3) one or more cleaning liquids (2) through a pipe system (1). Ultrasound (8) is introduced into the pipe system via a contact liquid (4). The cleaning liquid is expelled in one or more successive steps using gas and/or liquid (6,7), pref. with the simultaneous application of ultrasound. Leaks are made visible by the raised press. inside the pipe system causing gases or liquids (6,7) to appear in the contact liquid. ADVANTAGE - Enables time for cleaning, testing and drying processes to be reduced and for processes to be conducted more effectively.

Description

Verfahren und Anordnung von Funktionselementen für Rohr-Reinigungs-, Prüf- und Trocknungsanlagen.Method and arrangement of functional elements for pipe cleaning, Testing and drying systems.

Die Erfindung des Verfahrens und der Anordnung von Funktionselementen für Rohr-Reinigungs-, Prüf- und Trocknungsanlagen bezieht sich artgemäß auf das Zusammenwirken von Verfahrensschritten und die Anordnung von Funktionselementen von Reinigungs-, Spül-, Dichtigkeitsprüf- und Trockenprozessen bei Herstellung und Wartung von Rohrgebilden.The invention of the method and the arrangement of Functional elements for pipe cleaning, testing and Drying systems refer to the interaction of procedural steps and the arrangement of functional elements cleaning, rinsing, leak testing and drying processes in the manufacture and maintenance of tubular structures.

Bekannt sind eine ganze Reihe von Verfahren und Funktionselementanordnungen für das Reinigen, Prüfen und Trocknen des Rohrinneren von Rohrgebilden. Bei Wärmetauschern sind solcherart Reinigungsprozesse von großer Bedeutung.A whole series of methods and functional element arrangements are known for cleaning, checking and drying the inside of the pipe of tubular structures. Such are the case with heat exchangers Cleaning processes of great importance.

Den allgemein anerkannte Stand der Technik zeigt die Reinigung von Rohrgebilden im durch Ultraschall gestützen Tauchverfahren.Cleaning shows the generally recognized state of the art of tubular structures in the ultrasound-supported immersion process.

Bekannt ist die DE 36 30 386, wobei hier Kühl- und Reinigungsmittel mit hoher abrasiver Kraft durch das Rohrgebilde gepreßt werden. Da jedoch oft eine Entfernung des Reinigungsmittels und eine Trocknung des Rohrinneren sowie eine Dichtigkeitsprüfung erforderlich ist, sind mehrere Verfahrensschritte anzuschließen, die die Aufwendungen erhöhen.DE 36 30 386 is known, with coolants and cleaning agents can be pressed through the pipe structure with high abrasive force. However, since often a detergent removal and a Drying of the inside of the pipe as well as a leak test several procedural steps are required, that increase the expenses.

Noch immer fehlen kombinierte Prozesse, die alle technischen Reserven dieser Verfahren sinnvoll koppeln. Die neue technische Lehre besteht darin, daß die Verfahrensschritte nicht mehr im Tauchverfahren bei offenen Rohrgebilden ablaufen, sondern daß die Reinigungs-, Spül-, Dichtigkeitsprüf- und Trockenwirkungen im geschlossenen Rohr ablaufen und dabei folgende Aufgaben gelöst werden:Combined processes, all technical, are still missing Coupling reserves of these procedures sensibly. The new technical teaching is that the Process steps no longer in the immersion process with open ones Pipe structures run off, but that the cleaning, rinsing, Leak test and drying effects in a closed pipe run and the following tasks are solved:

  • 1. Reinigungs- und Spülmittel werden an die hauptsächlich zu reinigenden Innenflächen geführt und gestatten damit eine Garantie je nach Anzahl der Spülfstufen bis unter 5 mg/m2 Rohrinnenfläche.1. Cleaning agents and detergents are mainly used in the cleaning inner surfaces and thus allow one Guarantee depending on the number of rinse levels below 5 mg / m2 Inner pipe surface.
  • 2. Ein Kontaktmedium aus gekühltem Wasser gestattet den Einsatz von vorzugsweise verwendeten magnetostriktiven Schwingern zur zur Unterstützung der Reinigungswirkung mittels Ultraschall. 2. A contact medium made of chilled water permits use of preferably used magnetostrictive vibrators for to support the cleaning effect using ultrasound.  
  • 3. Das Kontaktmedium macht durch Blasenbildung an den Leckstellen eine gleichzeitige Leckageprüfung möglich.3. The contact medium blisters at the leaks a simultaneous leakage test possible.
  • 4. Durch Einbringen von Stickstoff kann noch im Prozeß das Rohrinnere getrocknet werden und eine Schutzgasatmosphäre aufgebaut werden.4. By introducing nitrogen can still be in the process the inside of the pipe is dried and a protective gas atmosphere being constructed.

Erfindungsgemäß wird das gelöst, indem aus einer Spülmittelbatterie mit vorzugsweise 5 Tanks für wäßrige Spülmittel über zugehörige Pumpen Reinigungsmittel und Spülmittel durch ein computergesteuertes Ventil-Spülsystem nacheinander durch das Innere des Rohrgebildes geleitet werden, unterbrochen durch das Leerblasen mit Preßluft.According to the invention this is solved by using a detergent battery with preferably 5 tanks for aqueous washing-up liquid associated pumps detergent and detergent through a computer-controlled valve flushing system one after the other through the Inside the pipe structure are interrupted by the Empty bubbles with compressed air.

Damit gelangt nur wenig übergeschlepptes vorhergehendes Spülmittel in die nächste Stufe.This means that only a little is carried over from the previous one Detergent to the next level.

Während dieses Prozesses ist das Rohrgebilde in einem Tank mit vorzugsweise Kaltwasser untergetaucht. Im Rohrgebilde sind nach Druckbelastung mit einem Gas oder nach Druckbelastung mit indikatorführenden Medien die Leckstellen erkennbar.During this process, the pipe structure is in a tank preferably submerged with cold water. In the pipe structure are after pressure with a gas or after pressure with indicator-bearing media the leaks are recognizable.

Die Trocknung des Rohrinneren erfolgt in 2 Stufen, einmal mit vorgewärmter Preßluft und danach mit Stickstoff, der auch als Inertgas das Rohrinnere vor Korrosion schützt. Durch diese Anordnung von Verfahrensschritten und Funktionselementen ergibt sich der Vorteil einer Verkürzung der technologischen Verfahrenszeiten und der gezielten, mechanisch mehrfach gestützten inneren Rohrreinigung mit hohem Effekt. Weiterhin wird eine Dichtigkeitsprüfung ohne Umspannen möglich. Die Erfindung soll an einem Ausführungsbeispiel erläutert werden.The inside of the pipe is dried in 2 stages, once with preheated compressed air and then with nitrogen, which is also called Inert gas protects the inside of the pipe from corrosion. Through this arrangement of process steps and Functional elements have the advantage of shortening the technological process times and the targeted, mechanical multi-supported inner pipe cleaning with high effect. Furthermore, a leak test without reclamping is possible. The invention will be explained using an exemplary embodiment will.

Aus einem wäßrigen Reinigungsbad 9 wird über die Pumpen 3 und Ventile 11 heiße Reinigungslösung durch das Rohrgebilde 1 im Kreislauf über eine Zeit "t" gepumpt. Dann wird über die Ventile 11 umgesteuert und die Leitung mit dem Rohrgebilde 1 leergeblasen mit Luft. Dieser Vorgang wird so lange wiederholt, bis alle Reinigungsbäder 12, 13, 14, 15 eine Zeit "t" auf die gleiche Art durchlaufen haben. Gleichzeitig wird Ultraschall über die Kontaktflüssigkeit 4 an das zu reinigende Rohrgebilde 1 gebracht. Zur Vermeidung der Beschädigung der magnetostriktiven Schwinger wird die Kontaktflüssigkeit 4 mit einem Wärmetauscher 5 gekühhlt. From an aqueous cleaning bath 9 , hot cleaning solution is pumped through the tubular structure 1 via the pumps 3 and valves 11 in a circuit for a time "t". Then it is reversed via the valves 11 and the line with the tubular structure 1 is blown empty with air. This process is repeated until all cleaning baths 12, 13, 14, 15 have run through a time "t" in the same way. At the same time, ultrasound is brought to the pipe structure 1 to be cleaned via the contact liquid 4 . To avoid damaging the magnetostrictive transducers, the contact liquid 4 is cooled with a heat exchanger 5 .

Danach wird vorgewärmte Preßluft zur Trocknung des Rohrinneren und anschließend Stickstoff zur Endtrocknung bei abgesperrten Ventilen 11 durchgeblasen. Das Rohrgebilde wird nach der Trocknung abgesperrt und mit Stickstoff druckbeaufschlagt, um so Leckagen durch Gasblasen in der Kontaktflüssigkeit 4 gestützt durch Lampen 10 besser erkennen zu können.Thereafter, preheated compressed air is blown through to dry the interior of the tube and then nitrogen for final drying with the valves 11 shut off. After drying, the tubular structure is shut off and pressurized with nitrogen so that leaks due to gas bubbles in the contact liquid 4 can be better recognized by lamps 10 .

Die Ventilfunktionen werden durch einen Computer elektronisch gesteuert.The valve functions are electronically controlled by a computer controlled.

Claims (4)

1. Verfahren und Anordnung von Funktionselementen für Rohr-Reinigungs-, Prüf- und Trocknungsanlagen dadurch gekennzeichnet, daß durch das Rohrinnere eines Rohrgebildes (1) ein oder mehrere Reinigungsflüssigkeiten (2) mittels einer Pumpe (3) gepreßt werden, wobei über eine Kontaktflüssigkeit (4) Ultraschall (8) in das Rohrinnere gelangt und wobei die Reinigungsflüssigkeit (2) in einem oder mehreren Schritten nachfolgend mit Gasen (6) und/oder Flüssigkeiten (7) vorzugsweise bei gleichzeitiger Wirkung von Ultraschall (8) wieder herausgespült wird und wobei durch Druckaufbau im Rohrinneren Undichtigkeiten dahingehend sichtbar gemacht werden, daß Gase (6) oder Flüssigkeiten (7) sich in der Kontaktflüssigkeit (4) zeigen.1. The method and arrangement of functional elements for pipe cleaning, testing and drying systems, characterized in that one or more cleaning liquids ( 2 ) are pressed by means of a pump ( 3 ) through the pipe interior of a pipe structure ( 1 ), with a contact liquid ( 4 ) Ultrasound ( 8 ) gets into the interior of the pipe and the cleaning liquid ( 2 ) is subsequently rinsed out again in one or more steps with gases ( 6 ) and / or liquids ( 7 ), preferably with the simultaneous effect of ultrasound ( 8 ), and whereby Pressure build-up inside the pipe, leaks should be made visible so that gases ( 6 ) or liquids ( 7 ) show up in the contact liquid ( 4 ). 2. Verfahren und Anordnung von Funktionselementen für Rohr- Reinigungs-, Prüf- und Trocknungsanlagen nach Anspruch 1 dadurch gekennzeichnet, daß die Rohrgebilde (1) innen mit einem Gas, vorzugsweise Stickstoff, getrocknet und geprüft werden.2. The method and arrangement of functional elements for pipe cleaning, testing and drying systems according to claim 1, characterized in that the tubular structures ( 1 ) are dried and tested on the inside with a gas, preferably nitrogen. 3. Verfahren und Anordnung von Funktionselementen für Rohr- Reinigungs-, Prüf- und Trocknungsanlagen nach Anspruch 1 und 2, dadurch gekennzeichnet, daß die Kontaktflüssigkeit (4) gekühlt wird.3. The method and arrangement of functional elements for pipe, cleaning, testing and drying systems according to claim 1 and 2, characterized in that the contact liquid ( 4 ) is cooled. 4. Verfahren und Anordnung von Funktionselementen für Rohr- Reinigungs-, Prüf- und Trocknungsanlagen nach Anspruch 1, 2 und 3, dadurch gekennzeichnet, daß die Kontaktflüssigkeit durch Lampen (10) ausgeleuchtet wird.4. The method and arrangement of functional elements for pipe cleaning, testing and drying systems according to claim 1, 2 and 3, characterized in that the contact liquid is illuminated by lamps ( 10 ).
DE4140378A 1991-12-09 1991-12-09 Pipe cleaning, testing and drying system used during mfr and maintenance - pumps cleaning liquids through system whilst applying ultrasound via contact liquid Withdrawn DE4140378A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE4140378A DE4140378A1 (en) 1991-12-09 1991-12-09 Pipe cleaning, testing and drying system used during mfr and maintenance - pumps cleaning liquids through system whilst applying ultrasound via contact liquid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4140378A DE4140378A1 (en) 1991-12-09 1991-12-09 Pipe cleaning, testing and drying system used during mfr and maintenance - pumps cleaning liquids through system whilst applying ultrasound via contact liquid

Publications (1)

Publication Number Publication Date
DE4140378A1 true DE4140378A1 (en) 1993-08-19

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DE4140378A Withdrawn DE4140378A1 (en) 1991-12-09 1991-12-09 Pipe cleaning, testing and drying system used during mfr and maintenance - pumps cleaning liquids through system whilst applying ultrasound via contact liquid

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996033819A1 (en) * 1995-04-24 1996-10-31 Lawrence Ralph Dawson Method and apparatus for cleaning hollow elements
CN102435098A (en) * 2011-10-24 2012-05-02 王建成 On-line ultrasound rotational flow descaling device for condenser
CN105521973A (en) * 2015-12-27 2016-04-27 西南技术物理研究所 Cleaning method for laser device cooling box and detection method for detecting cleanness of cleaning method
CN108927387A (en) * 2018-07-25 2018-12-04 中国冶集团有限公司 The tubing of automatic control vibrates rinse-system

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996033819A1 (en) * 1995-04-24 1996-10-31 Lawrence Ralph Dawson Method and apparatus for cleaning hollow elements
GB2318166A (en) * 1995-04-24 1998-04-15 Lawrence Ralph Dawson Method and apparatus for cleaning hollow elements
GB2318166B (en) * 1995-04-24 1998-09-09 Lawrence Ralph Dawson Method and apparatus for cleaning hollow elements
US5985038A (en) * 1995-04-24 1999-11-16 Dawson; Lawrence Ralph Method and apparatus for cleaning hollow elements
CN102435098A (en) * 2011-10-24 2012-05-02 王建成 On-line ultrasound rotational flow descaling device for condenser
CN102435098B (en) * 2011-10-24 2014-07-23 王建成 On-line ultrasound rotational flow descaling device for condenser
CN105521973A (en) * 2015-12-27 2016-04-27 西南技术物理研究所 Cleaning method for laser device cooling box and detection method for detecting cleanness of cleaning method
CN105521973B (en) * 2015-12-27 2018-08-21 西南技术物理研究所 The cleaning method of laser cooler bin and its detection method of cleanliness factor
CN108927387A (en) * 2018-07-25 2018-12-04 中国冶集团有限公司 The tubing of automatic control vibrates rinse-system

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