DE1749998U - FILTER TUBE FOR DRILLING WELL. - Google Patents

FILTER TUBE FOR DRILLING WELL.

Info

Publication number
DE1749998U
DE1749998U DE1957ST008672 DEST008672U DE1749998U DE 1749998 U DE1749998 U DE 1749998U DE 1957ST008672 DE1957ST008672 DE 1957ST008672 DE ST008672 U DEST008672 U DE ST008672U DE 1749998 U DE1749998 U DE 1749998U
Authority
DE
Germany
Prior art keywords
filter
filter tube
drilling well
longitudinal direction
tube
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
DE1957ST008672
Other languages
German (de)
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.)
CONRAD STUEKERJUERGEN VARENSEL
Original Assignee
CONRAD STUEKERJUERGEN VARENSEL
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 CONRAD STUEKERJUERGEN VARENSEL filed Critical CONRAD STUEKERJUERGEN VARENSEL
Priority to DE1957ST008672 priority Critical patent/DE1749998U/en
Publication of DE1749998U publication Critical patent/DE1749998U/en
Expired legal-status Critical Current

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  • Combined Means For Separation Of Solids (AREA)
  • Earth Drilling (AREA)

Description

Snltxrtak für Bohrbrmme. Die Neuerung bezieht sich auf Filterrohre für Bohrbrunnen, insbes solche aus thermoplastischem Kunststoff, und besteht darin, dass das in Längsrichtung ungeteilte Kunststoffrohr in der Längsrichtung Verlaufende Filterschlitze aufweist, die sich Von aussen nach innen hin keil-oder trichterartig erweitern. Durch diese Ausgestaltung wird ein Verstopfen der Schlitze wirksam verhindert Es sind zwar Filterrohre für Bohrbrunnen mit sich von aussen nach innen hin verbreiternden Filtersehlitzen bekanntt jedoch sind diese bekannten Filterrohre aus einer grösseren Anzahl keilförmiger Holzleisten zusammengesetzt und daher verhältnismässig teuer in der Herstellung. Ausserdem haben diese Filterrohre aus Holz eine beträchtliche Wandstärke und schließlich lässt sich bei diesen Holzrohren eine Verstopfung der Filterschlitze durch Aufquellen des Holzes nie ganz vermeiden. Snltxrtak for drill bits. The innovation relates to filter tubes for boreholes, esp those made of thermoplastic material, and consists in that the plastic tube, which is undivided in the longitudinal direction, has filter slots which extend in the longitudinal direction and widen in the manner of a wedge or funnel from the outside inward. This configuration effectively prevents the slots from clogging.Although filter tubes for boreholes with filter slits widening from the outside to the inside are known, these known filter tubes are composed of a large number of wedge-shaped wooden strips and are therefore relatively expensive to manufacture. In addition, these filter tubes made of wood have a considerable wall thickness and, finally, with these wooden tubes, clogging of the filter slots by swelling of the wood can never be completely avoided.

Die nach der Neuerung ausgebildeten Filterrohre aus thermoplaste- echem Kunststoff dagegen sind in der Längsrichtung ungeteilt und haben schon bei@relativ geringer wandstärke eine ausreichende Festigkeit. Da der Kunststoff nicht quillt, sind Verstopfungen der Filterrohre ausgeschlossen.The filter tubes made of thermoplastic Some plastics, on the other hand, are undivided in the longitudinal direction and have sufficient strength even with @ relatively low wall thickness. Since the plastic does not swell, clogging of the filter tubes is impossible.

In der Zeichnung ist ein Ausführungsbeispiel der Neuerung dargestellt. Es zeigen : Fig. 1 ein Teilstück eines nach der Neuerung ausgebildeten Filterrohre in Seitenansicht, Fig. 2 einen Querschnitt durch einen Teil der Wandung des Rohres nach Fig. 1.In the drawing, an embodiment of the innovation is shown. The figures show: FIG. 1 a section of one designed according to the innovation Filter tubes in side view, FIG. 2 shows a cross section through part of the wall of the pipe according to FIG. 1.

Das aus thermoplastischem Kunststoff, insbes. aus einem solchen auf PölyvinylchloridBasis bestehende Filterrohr a ist in gel wissenAbständen mit einer Ansahl nebeneinanderliegender Filter- schlitze b versehen, die auasen eine sehr geringe Breite von etwa 0, 3 - 1 mm haben und sich nach innen hin keil-oder riß terartig erweitern, wie es in Fig. 2 dargestellte ist. Die Länge der Filtersohlitze kann verschieden sein, beträgt aber zweck- messing etwa 2o bis 3o mm, wobei zwischen den Schlitzreihen je- weils ein ungeschwäohter Rohrquerschnitt von mindestens 1o bis 2o mm Länge vorhanden ist. Die Verbindung der so ausgebildeten Kunststoffrohre. kann in üblicher Weise mittels Gewinde o. dgl. erfolgen. The one made of thermoplastic material, especially one Filter tube a based on polyvinyl chloride is in gel know distances with a number of adjacent filter slits b provided, which have a very small width of about 0.3-1 mm and widen inwardly like a wedge or crack, as shown in FIG. The length of the filter seat can be different, but is brass about 2o to 3o mm, with each because an unspoiled pipe cross-section of at least 1o to 20 mm length is available. The connection of the plastic pipes formed in this way. can in Usually done by means of a thread or the like.

Claims (1)

S c h u t z a n s p r u c h. =============================
Filterrohr fr Bohrbrunnen, insbes. aus thermoplastischem
Kunststoff, dadurch gekennzeichnet, dass das in Längsrichtung ungeteilte Rohr in der Längsrichtung verlaufende Filterschlitze (b) aufweist, die sich von aussen nach innen hin keil-oder trichterartig erweitern.
Protection claim. ==============================
Filter tube for boreholes, especially made of thermoplastic
Plastic, characterized in that the tube, which is undivided in the longitudinal direction, has filter slots (b) which run in the longitudinal direction and widen from the outside inwards in the manner of a wedge or funnel.
DE1957ST008672 1957-03-16 1957-03-16 FILTER TUBE FOR DRILLING WELL. Expired DE1749998U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1957ST008672 DE1749998U (en) 1957-03-16 1957-03-16 FILTER TUBE FOR DRILLING WELL.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1957ST008672 DE1749998U (en) 1957-03-16 1957-03-16 FILTER TUBE FOR DRILLING WELL.

Publications (1)

Publication Number Publication Date
DE1749998U true DE1749998U (en) 1957-08-01

Family

ID=32745753

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1957ST008672 Expired DE1749998U (en) 1957-03-16 1957-03-16 FILTER TUBE FOR DRILLING WELL.

Country Status (1)

Country Link
DE (1) DE1749998U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1140153B (en) * 1958-01-02 1962-11-22 Mannesmann Ag Filter pipe for pipe well
EP0006830A1 (en) * 1978-07-04 1980-01-09 GÖKTEPE PLASTIK SANAYII ve TICARET ANONIM SIRKETI Plastic well screen and its connection system
DE19946051A1 (en) * 1999-09-25 2002-01-03 Frank Petermann Well filter of top-flanged pipe with bottom tip slots specified pipe sector out to specified dimensions from tip upwards with slots expanding non-cloggably inwards from pipe surface.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1140153B (en) * 1958-01-02 1962-11-22 Mannesmann Ag Filter pipe for pipe well
EP0006830A1 (en) * 1978-07-04 1980-01-09 GÖKTEPE PLASTIK SANAYII ve TICARET ANONIM SIRKETI Plastic well screen and its connection system
DE19946051A1 (en) * 1999-09-25 2002-01-03 Frank Petermann Well filter of top-flanged pipe with bottom tip slots specified pipe sector out to specified dimensions from tip upwards with slots expanding non-cloggably inwards from pipe surface.

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