DE1295933B - Cleaning pig made of synthetic resin foam for pipes - Google Patents
Cleaning pig made of synthetic resin foam for pipesInfo
- Publication number
- DE1295933B DE1295933B DE1965K0056553 DEK0056553A DE1295933B DE 1295933 B DE1295933 B DE 1295933B DE 1965K0056553 DE1965K0056553 DE 1965K0056553 DE K0056553 A DEK0056553 A DE K0056553A DE 1295933 B DE1295933 B DE 1295933B
- Authority
- DE
- Germany
- Prior art keywords
- synthetic resin
- resin foam
- foam body
- cleaning
- cleaning pig
- 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.)
- Pending
Links
- 238000004140 cleaning Methods 0.000 title claims description 18
- 239000006260 foam Substances 0.000 title claims description 16
- 229920003002 synthetic resin Polymers 0.000 title claims description 16
- 239000000057 synthetic resin Substances 0.000 title claims description 16
- 239000007788 liquid Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 2
- 238000004804 winding Methods 0.000 claims description 2
- 239000003082 abrasive agent Substances 0.000 description 5
- 241000282887 Suidae Species 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 229920005830 Polyurethane Foam Polymers 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000004941 influx Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000011496 polyurethane foam Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
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
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/26—Pigs or moles, i.e. devices movable in a pipe or conduit with or without self-contained propulsion means
- F16L55/28—Constructional aspects
- F16L55/30—Constructional aspects of the propulsion means, e.g. towed by cables
- F16L55/38—Constructional aspects of the propulsion means, e.g. towed by cables driven by fluid pressure
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cleaning In General (AREA)
Description
Die Erfindung betrifft einen Reinigungsmolch für Rohrleitungen, bestehend aus einem weichelastischen zylindrischen Kunstharzschaumkörper, der mindestens an seiner hinteren Stirnfläche eine undurchlässige Deckschicht aufweist.The invention relates to a cleaning pig for pipelines, consisting made of a flexible, cylindrical synthetic resin foam body that has at least its rear end face has an impermeable cover layer.
Aus der USA.-Patentschrift 2 906 650 ist ein solcher Reinigungsmolch für Rohrleitungen bekanntgeworden, der aus Polyurethanschaum besteht und an der vorderen Stirnseite einen überzog aus dichtem Material besitzt, weil dieser Molch mittels Vakuum durch die Rohrleitung gesaugt werden soll. Ein solcher nachgiebiger Reinigungsmolch neigt zwar nicht wie die bekannten starren Reinigungsmolche zum Festklemmen in der Rohrleitung, übt aber andererseits nur eine geringe Abriebwirkung an der zu reinigenden Rohrinnenwand aus.Such a cleaning pig is disclosed in US Pat. No. 2,906,650 became known for pipelines, which consists of polyurethane foam and at the front face has a coated dense material because this pig should be sucked through the pipeline by means of a vacuum. Such a forgiving one Cleaning pigs do not tend to, like the known rigid cleaning pigs, to Jamming in the pipeline, but on the other hand only has a low abrasive effect on the inner pipe wall to be cleaned.
Der vorliegenden Erfindung liegt .die Aufgabe zugrunde, einen Reinigungsmolch für Rohrleitungen der eingangs als bekannt vorausgesetzten Gattung derart auszugestalten, daß er zwar eine gute Abriebwirkung an der zu reinigenden Rohrinnenwandung erzielt, andererseits aber weder zum Festklemmen neigt noch an der Rohrwand ungenügend abdichtet.The present invention is based on the object of a cleaning pig to be designed for pipelines of the type initially assumed to be known in such a way, that although it achieves a good abrasion effect on the inner pipe wall to be cleaned, on the other hand, it neither tends to get stuck nor does it provide an inadequate seal on the pipe wall.
Die Lösung dieser Aufgabe ist erfindungsgemäß dadurch gekennzeichnet, daß am Umfang des Kunstharzschaumkörpers schraubenförmig ein Band aus festem Abriebstoff angeordnet ist, wobei die Abmessungen und die Steigung des Bandes so bemessen sind, daß sich unter Einfloß des beim Reinigungsvorgang auf die Deckschicht wirkenden Flüssigkeitsdruckes der Kunstharzschaumkörper zwischen den Windungen des Bandes dichtend an die Rohrwand anlegt.According to the invention, the solution to this problem is characterized in that that on the circumference of the synthetic resin foam body is a helical band of solid abrasive material is arranged, the dimensions and the pitch of the belt being dimensioned so that with the influence of the cleaning process on the top layer Liquid pressure of the synthetic resin foam body between the turns of the tape creates a seal against the pipe wall.
Aus der USA.-Patentschrift 2637865 ist es zwar bekannt, bei einem starren Reinigungskörper schraubenförmige Bänder aus Abriebstoff anzuordnen. Diese Druckschrift gibt aber keinen Hinweis, solche schraubenförmigen Bänder aus Abriebstoff bei einem elastischen Rohrmolch anzuordnen, und läßt auch die Frage offen, wie dann die Abdichtung des Molches in der Leitung erfolgen soll.From US Pat. No. 2,637,865 it is known to arrange helical bands made of abrasive material on a rigid cleaning body. However, this document gives no indication of arranging such helical strips made of abrasive material in an elastic tubular pig, and also leaves the question of how the pig is then to be sealed in the line.
Es folgt eine Beschreibung eines Ausführungsbeispielen der Erfindung an Hand einer Zeichnung. F i g. 1 ist eine Seitenansicht eines erfindungsgemäßen Reinigungsmolches; F i g. 2 ist eine Längsschnittansicht des Reinigungsmolches innerhalb eines T-Rohrstückes.A description of an embodiment of the invention follows on the basis of a drawing. F i g. 1 is a side view of one of the present invention Cleaning pigs; F i g. Fig. 2 is a longitudinal sectional view of the cleaning pig inside of a T-pipe section.
Der Reinigungsmolch weist einen zylindrischen Kunstharzschaumkörper 1 aus Polyurethan auf. Am Umfang des Kunstharzschaumkörpers 1 ist schraubenförmig ein Band 2 aus festem Abriebstoff angeordnet. Der Abriebstoff kann z. B. Sand, Glas, Diamantstaub, Siliciumcarbid, kurze Borsten, ein feiner polierrotartiger Stoff oder eine Kombination dieser Stoffe sein. Der Abriebstoff wird an dem Kunstharzschaumkörper 1 durch ein Bindemittel 3, z. B. durch ein Epoxyd, befestigt. Quer über die hintere Stirnfläche des Kunstharzschaumkörpers 1 erstreckt sich eine undurchlässige Deckschicht 5 aus einem weichen Stoff mit elastomeren Eigenschaften. An dem abgerundeten vorderen Ende 6 des Kunstharzschaumkörpers 1 ist ein Belag 7 befestigt, der aus demselben Stoff wie die Deckschicht 5 besteht.The cleaning pig has a cylindrical synthetic resin foam body 1 made of polyurethane. The circumference of the synthetic resin foam body 1 is helical a band 2 of solid abrasive material is arranged. The abrasive can e.g. B. sand, glass, Diamond dust, silicon carbide, short bristles, a fine, polished red-like substance or be a combination of these substances. The abrasive material is attached to the synthetic resin foam body 1 by a binder 3, e.g. B. by an epoxy attached. Across the back The end face of the synthetic resin foam body 1 extends an impermeable cover layer 5 made of a soft fabric with elastomeric properties. On the rounded front End 6 of the synthetic resin foam body 1, a covering 7 is attached, which consists of the same Fabric like the top layer 5 is made.
Um das Innere einer Rohrleitung zu reinigen, wird ein solcher Rohrleitungsmolch, dessen Durchmesser etwas größer ist als der Innendurchmesser des zu reinigenden Rohres, in ein offenes Ende des Rohres eingeführt und ein Flüssigkeits- oder Gasdruck auf die Deckschicht 5 ausgeübt. Wegen ihrer elastomeren Eigenschaften dichtet die Deckschicht bei 9 an der Rohrinnenwand ab. Wenn der auf die Deckschicht 5 wirkende Druck den Reinigungsmolch durch das Rohrinnere treibt, bewirkt das schraubenförmig gewundene Band 2 auf Grund seiner Reibung an dem Rohr 8, daß der insgesamt mit der Bezugsziffer 10 bezeichnete Reinigungsmolch sich in dem Rohr dreht. Der Kunstharzschaumkörper legt sich dann unter dem Einfloß des auf die Deckschicht 5 ausgeübten Druckes zwischen den Windungen des Bandes 2 dichtend an die Rohrwand an. Wenn der Molch an einem beliebigen Punkt, z. B. an dem Punkt 12 vorbeiläuft, wird diese Stelle der Rohrwand abwechselnd abgerieben und abgewischt.In order to clean the inside of a pipeline, such a pipeline pig, whose diameter is slightly larger than the inside diameter of the one to be cleaned Tube, inserted into an open end of the tube and a liquid or gas pressure exerted on the cover layer 5. Because of its elastomeric properties, the Cover layer at 9 on the inner wall of the pipe. If the acting on the top layer 5 Pressure drives the cleaning pig through the inside of the pipe, this has a helical effect winding tape 2 due to its friction on the tube 8 that the total with the The cleaning pig, denoted by reference numeral 10, rotates in the pipe. The synthetic resin foam body then intervenes under the influx of the pressure exerted on the cover layer 5 the turns of the band 2 sealingly on the pipe wall. If the newt is on you any point, e.g. B. passes the point 12, this point becomes the pipe wall alternately rubbed and wiped.
Je größer der Widerstand zwischen dem Vorderende 6 des Reinigungsmolches und der verschmutzten Rohrwand ist, desto mehr wird der Kunstharzschaumkörper 1 zusammen und an die Rohrwand gepreßt. Um so besser wird auch die Abdichtung zwischen dem Kunstharzschaumkörper und dem Rohr B.The greater the resistance between the front end 6 of the cleaning pig and the pipe wall is soiled, the more the synthetic resin foam body 1 becomes pressed together and against the pipe wall. The better the seal between the synthetic resin foam body and the pipe B.
Es ist festgestellt worden, daß das günstigste Verhältnis zwischen Abrieb und Nachgiebigkeit bei einem Reinigungsmolch gemäß F i g. 2 dann erhalten wird, wenn die Breite des um den Kunstharzschaumkörper 1 herum angeordneten Bandes 2 etwa gleich der Breite des zwischen den Windungen des Bandes liegenden Streifens ist. Wegen seiner Elastizität ist der Reinigungsmolch auch für Rohrformstücke anwendbar.It has been found that the most favorable ratio between Abrasion and resilience in a cleaning pig according to FIG. 2 then received becomes when the width of the tape arranged around the synthetic resin foam body 1 2 approximately equal to the width of the strip lying between the turns of the tape is. Because of its elasticity, the cleaning pig can also be used for pipe fittings.
Claims (1)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1084125D GB1084125A (en) | 1965-07-06 | ||
| DE1965K0056553 DE1295933B (en) | 1965-07-06 | 1965-07-06 | Cleaning pig made of synthetic resin foam for pipes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1965K0056553 DE1295933B (en) | 1965-07-06 | 1965-07-06 | Cleaning pig made of synthetic resin foam for pipes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1295933B true DE1295933B (en) | 1969-05-22 |
Family
ID=7227898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE1965K0056553 Pending DE1295933B (en) | 1965-07-06 | 1965-07-06 | Cleaning pig made of synthetic resin foam for pipes |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE1295933B (en) |
| GB (1) | GB1084125A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0041700A3 (en) * | 1980-06-10 | 1982-05-26 | Taprogge Gesellschaft Mbh | Cleaning bodies for the internal cleaning of tube heat exchangers |
| EP0542840A4 (en) * | 1990-08-10 | 1993-11-03 | Compri Technic Pty. Ltd. | Improved pneumatic gun and projectiles therefor |
| WO2010096379A3 (en) * | 2009-02-18 | 2010-12-02 | Misc B.V. | Bypass pig |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1415600A (en) * | 1922-05-09 | And egbert g | ||
| US1547440A (en) * | 1921-03-28 | 1925-07-28 | Warren C Drake | Tube-cleaning system |
| US2637865A (en) * | 1948-07-13 | 1953-05-12 | Donald G Posson | Tube cleaning tool |
| US2906650A (en) * | 1956-10-31 | 1959-09-29 | Roll Dippers Inc | Method of cleaning pipe lines |
| US3011197A (en) * | 1957-07-18 | 1961-12-05 | Mobay Chemical Corp | Pipeline cleaning devices |
-
0
- GB GB1084125D patent/GB1084125A/en active Active
-
1965
- 1965-07-06 DE DE1965K0056553 patent/DE1295933B/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1415600A (en) * | 1922-05-09 | And egbert g | ||
| US1547440A (en) * | 1921-03-28 | 1925-07-28 | Warren C Drake | Tube-cleaning system |
| US2637865A (en) * | 1948-07-13 | 1953-05-12 | Donald G Posson | Tube cleaning tool |
| US2906650A (en) * | 1956-10-31 | 1959-09-29 | Roll Dippers Inc | Method of cleaning pipe lines |
| US3011197A (en) * | 1957-07-18 | 1961-12-05 | Mobay Chemical Corp | Pipeline cleaning devices |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0041700A3 (en) * | 1980-06-10 | 1982-05-26 | Taprogge Gesellschaft Mbh | Cleaning bodies for the internal cleaning of tube heat exchangers |
| EP0542840A4 (en) * | 1990-08-10 | 1993-11-03 | Compri Technic Pty. Ltd. | Improved pneumatic gun and projectiles therefor |
| US5555585A (en) * | 1990-08-10 | 1996-09-17 | Compri Technic Pty., Ltd. | Pneumatic gun and projectiles therefor |
| WO2010096379A3 (en) * | 2009-02-18 | 2010-12-02 | Misc B.V. | Bypass pig |
Also Published As
| Publication number | Publication date |
|---|---|
| GB1084125A (en) |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| E77 | Valid patent as to the heymanns-index 1977 |