DE2610706C3 - Method for drying pipe inner walls - Google Patents

Method for drying pipe inner walls

Info

Publication number
DE2610706C3
DE2610706C3 DE19762610706 DE2610706A DE2610706C3 DE 2610706 C3 DE2610706 C3 DE 2610706C3 DE 19762610706 DE19762610706 DE 19762610706 DE 2610706 A DE2610706 A DE 2610706A DE 2610706 C3 DE2610706 C3 DE 2610706C3
Authority
DE
Germany
Prior art keywords
air
drying
inner walls
pig
pipe inner
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.)
Expired
Application number
DE19762610706
Other languages
German (de)
Other versions
DE2610706B2 (en
DE2610706A1 (en
Inventor
Albrecht 4450 Lingen Maaß
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.)
Kopp AG International Pipeline Services 4450 Ling
Original Assignee
Industrie- und Pipeline-Service Gerhard Kopp 4450 Lingen De GmbH
Industrie und Pipeline Service Gerhard Kopp 4450 Lingen 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 Industrie- und Pipeline-Service Gerhard Kopp 4450 Lingen De GmbH, Industrie und Pipeline Service Gerhard Kopp 4450 Lingen GmbH filed Critical Industrie- und Pipeline-Service Gerhard Kopp 4450 Lingen De GmbH
Priority to DE19762610706 priority Critical patent/DE2610706C3/en
Priority to IT1966077A priority patent/IT1076315B/en
Priority to GB661177A priority patent/GB1523252A/en
Priority to NL7702624A priority patent/NL183810C/en
Priority to FR7707424A priority patent/FR2343979A1/en
Priority to ES456798A priority patent/ES456798A1/en
Publication of DE2610706A1 publication Critical patent/DE2610706A1/en
Publication of DE2610706B2 publication Critical patent/DE2610706B2/en
Application granted granted Critical
Publication of DE2610706C3 publication Critical patent/DE2610706C3/en
Expired legal-status Critical Current

Links

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
    • B08B9/055—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
    • B08B9/0553—Cylindrically shaped pigs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D3/00—Arrangements for supervising or controlling working operations
    • F17D3/14—Arrangements for supervising or controlling working operations for eliminating water
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
    • F26B21/006—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects the gas supply or exhaust being effected through hollow spaces or cores in the materials or objects, e.g. tubes, pipes, bottles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B5/00—Drying solid materials or objects by processes not involving the application of heat
    • F26B5/14—Drying solid materials or objects by processes not involving the application of heat by applying pressure, e.g. wringing; by brushing; by wiping
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26—DRYING
    • F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B5/00—Drying solid materials or objects by processes not involving the application of heat
    • F26B5/16—Drying solid materials or objects by processes not involving the application of heat by contact with sorbent bodies, e.g. absorbent mould; by admixture with sorbent materials

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Molecular Biology (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Drying Of Solid Materials (AREA)
  • Cleaning In General (AREA)

Description

Die Erfindung betrifft ein Verfahren nach dem Oberbegriff des Anspruchs 1.The invention relates to a method according to the preamble of claim 1.

Ein so definiertes Verfahren ergibt sich aus der US-PS 37 08 819, bei der die eingedrückte Luft als Vortriebsmittel für den Molch verwandt wird, im übrigen allerdings mit hier nicht näher interessierenden Überlegungen zur Gestaltung eines nach Art von Venturi-Düsen funktionierenden Molchs befaßt ist. Das grundsätzliche Konzept, im Rohr enthaltenes Wasser mit einem Mehrscheiben-Molch auszuschieben und an den Wänden anhaftendes Wasser, soweit es sich zwischen den Scheiben des Molchs ansammelt, wieder vor den Molch zu fördern, vermag nicht zu einer brauchbaren Trocknung zu führen.A process defined in this way results from US Pat. No. 3,7 08,819, in which the injected air is used as a propulsion means is used for the newt, but otherwise with no further interest here Considerations for the design of a working on the type of Venturi nozzle pig is concerned. That The basic concept of pushing out the water contained in the pipe with a multi-disc pig water adhering to the walls, as far as it collects between the panes of the newt, again To convey in front of the pig cannot lead to a useful drying.

Für eine bessere Trocknung von Rohrleitungen, die beispielsweise nach dem Verlegen mittels einer Wasserfüllung hydraulisch auf Druckfestigkeit geprüft worden sind und die nach dem Entleeren vollständig getrocknet werden sollen, ist es in der Praxis langjährig bekannt, neben der Verwendung von Molchen zum Ausschieben von Wasser als Trocknungsmittel Methanol zu verwenden, welches als Lösungsmittel Wasser aufnimmt. Allerdings hat sich auch dort gezeigt, daß diese Trocknung auch bei größter Mühe nicht zu absolut trockenen Rohren führt, vielmehr immer noch einen Rest von Feuchtigkeit zurückläßt, der z, B. bei verzögerter Inbetriebnahme zu früher Korrosion führt Darüber hinaus ist das bekannte »Methanol-Verfahren« schon vom verwendeten Trocknungsmittel her überaus material- und arbeitsaufwendig und in der Handhabung auch gefährlich.For better drying of pipelines, for example after laying by means of a The water filling has been checked hydraulically for pressure resistance and completely after emptying are to be dried, it has been known in practice for many years, in addition to the use of pigs for Expelling water to use methanol as the desiccant, which is water as the solvent records. However, it has also been shown there that this drying does not lead to absolutely dry pipes, even with the greatest effort, but still one Leaves residual moisture behind, which, for example, leads to early corrosion if commissioning is delayed In addition, the well-known "methanol process" is already outstanding in terms of the drying agent used Material and labor intensive and also dangerous to use.

Aufgabe der Erfindung ist es demgegenüber, ein hochwirksames Trocknungsverfahren mit möglichst einfachen und ungefährlichen Mitteln zu schaffen.The object of the invention, on the other hand, is to provide a highly effective drying process with as much as possible to create simple and harmless means.

Gemäß der Erfindung wird diese Aufgabe mit den Merkmalen des Anspruchs 1 gelöst Eine bevorzugte Ausführungsform ergibt sich nach dem AnsprucJ» 2.According to the invention, this object is achieved with the features of claim 1. A preferred one Embodiment results from claim 2.

Die Verwendung hochgetrockneter Luft hat sich als überaus wirksam erwiesen. Sie erzielt eine vollständige,The use of highly dried air has been found to be extremely effective. She achieved a full,

rückstandsfreie Trocknung im Rohr. Die Luft ist also hier nicht nur Antriebsmittel für den Molch wie bei der eingangs betrachteten Druckschrift, sondern insbesondere Trocknungsmittel, das bisher nicht erzielbare, restlose Trocknungsergebnisse erbringt unkritisch anzuwenden ist und sich überaus leicht nämlich aus der Umgebungsluft gewinnen läßt indem am Verwendungsort eine transportable Lufttrocknungsanlage eingesetzt wird.
Die Verwendung getrockneter Luft zu Trocknungs-residue-free drying in the tube. The air is not only the driving means for the pig as in the publication considered at the beginning, but in particular the drying agent, which yields complete drying results that were previously unachievable and can be used very easily, namely from the ambient air by using a transportable air drying system at the place of use will.
The use of dried air for drying

zwecken ist an sich bekannt z. B. aus einer Veröffentlichung in »Maschinenmarkt«, 81. Jahrgang, Heft 90 vom 11.11.1975, in der neben der Verwendung erwärmter Luft auch eine zusätzliche Trocknung durch Feuchtigkeitsentzug der Luft vorgeschlagen wird. Die dort vorgesehene Anwendung der Lufttrocknung bei Kunststoffgranulaten ist allerdings nicht nur vom Anwendungsobjekt her, sondern auch vom Anwendungsort her, ungeeignet dem Fachmann auf dem Gebiet der Rohrleitungstrocknung geeignete Anregungen zu ver-purposes is known per se z. B. from a publication in "Maschinenmarkt", volume 81, issue 90 from 11.11.1975, in which, in addition to the use of warmed Air, additional drying by removing moisture from the air is suggested. These However, the intended use of air drying for plastic granulates is not only dependent on the object of application her, but also the place of application, unsuitable for the expert in the field of Pipe drying suitable suggestions for

^o mitteln, da sich die Betriebsbedingungen in Verarbeitungsanlagen und im Feld grundsätzlich unterscheiden. Insbesondere scheidet der Einsatz erhitzter Luft bei verlegten Rohrleitungen aus.^ o average, as the operating conditions in processing plants and fundamentally differentiate in the field. The use of heated air is particularly important laid pipelines.

Claims (2)

Palentansprüche:Palent claims: 1. Verfahren zum Trocknen von Rohrinnenwänden bei verlegten Rohrleitungsabschnitten, bei dem zumindest ein Molch mit Hilfe nachfolgend in den Rohrabschnitt eingedrückter Luft durch den Rohrabschnitt getrieben wird, dadurch gekennzeichnet, daß zumindest ein Molch mit geschlossenem Querschnitt verwandt wird und die Luft als Trocknungsmittel in hochgetrockneter Form mit einem Taupunkt von weniger als 0"C und mit einer im Bereich üblicher Außentemperaturen liegenden Temperatur am Verwendungsort in einer transportablen Lufttrocknungsanlage aus der Umgebungsluft gewonnen wird.1. Method for drying pipe inner walls in the case of laid pipe sections, in which at least one pig with the aid of air subsequently forced into the pipe section through the pipe section is driven, characterized in that that at least one pig with a closed cross-section is used and the air as Desiccant in highly dried form with a dew point of less than 0 "C and with a in the range of normal outside temperatures at the place of use in a transportable Air drying system is obtained from the ambient air. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß als getrocknete Luft solche mit einem Taupunkt von etwa —400C verwendet wird.2. The method according to claim 1, characterized in that such with a dew point of about -40 0 C is used as the dried air.
DE19762610706 1976-03-13 1976-03-13 Method for drying pipe inner walls Expired DE2610706C3 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
DE19762610706 DE2610706C3 (en) 1976-03-13 1976-03-13 Method for drying pipe inner walls
IT1966077A IT1076315B (en) 1976-03-13 1977-01-26 PROCEDURE FOR DRYING THE INTERNAL WALLS OF TUBES
GB661177A GB1523252A (en) 1976-03-13 1977-02-17 Method and apparatus for drying the inner wall of pipes
NL7702624A NL183810C (en) 1976-03-13 1977-03-10 METHOD FOR DRYING THE INNER WALLS OF PIPELINES
FR7707424A FR2343979A1 (en) 1976-03-13 1977-03-11 METHOD AND SCRAPER FOR DRYING THE INTERIOR WALLS OF THE PIPES
ES456798A ES456798A1 (en) 1976-03-13 1977-03-12 Method and apparatus for drying the inner wall of pipes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19762610706 DE2610706C3 (en) 1976-03-13 1976-03-13 Method for drying pipe inner walls

Publications (3)

Publication Number Publication Date
DE2610706A1 DE2610706A1 (en) 1978-01-26
DE2610706B2 DE2610706B2 (en) 1981-04-02
DE2610706C3 true DE2610706C3 (en) 1981-11-26

Family

ID=5972411

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19762610706 Expired DE2610706C3 (en) 1976-03-13 1976-03-13 Method for drying pipe inner walls

Country Status (6)

Country Link
DE (1) DE2610706C3 (en)
ES (1) ES456798A1 (en)
FR (1) FR2343979A1 (en)
GB (1) GB1523252A (en)
IT (1) IT1076315B (en)
NL (1) NL183810C (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3021699C2 (en) * 1980-06-10 1982-10-14 Taprogge Gesellschaft mbH, 4000 Düsseldorf Cleaning body for cleaning the inside of tubular heat exchangers
BR9202987A (en) * 1992-07-31 1994-02-01 Petroleo Brasileiro Sa PROCESS FOR REMOVING LIQUIDS IN PIPES THROUGH A MOBILE PISTON
CN113102418B (en) * 2021-04-20 2022-03-08 安徽海峰分析测试科技有限公司 Soil sample crushing barrel cleaning device based on soil environmental protection detection

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3708819A (en) * 1970-06-05 1973-01-09 M Breston Apparatus for drying pipelines
US3740790A (en) * 1971-12-06 1973-06-26 Bell Telephone Labor Inc Apparatus for cleaning waveguide and similar pipes
US3778859A (en) * 1972-10-02 1973-12-18 Spin Co Pipeline squeegee apparatus

Also Published As

Publication number Publication date
NL183810C (en) 1989-02-01
NL7702624A (en) 1977-09-15
DE2610706B2 (en) 1981-04-02
GB1523252A (en) 1978-08-31
ES456798A1 (en) 1978-08-16
DE2610706A1 (en) 1978-01-26
NL183810B (en) 1988-09-01
FR2343979A1 (en) 1977-10-07
FR2343979B3 (en) 1980-01-18
IT1076315B (en) 1985-04-27

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Legal Events

Date Code Title Description
OAP Request for examination filed
OD Request for examination
C3 Grant after two publication steps (3rd publication)
8327 Change in the person/name/address of the patent owner

Owner name: KOPP GMBH INTERNATIONAL PIPELINE SERVICES, 4450 LI

8327 Change in the person/name/address of the patent owner

Owner name: KOPP AG INTERNATIONAL PIPELINE SERVICES, 4450 LING