EP0238052A2 - Cable rope for electrically driven machines - Google Patents

Cable rope for electrically driven machines Download PDF

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Publication number
EP0238052A2
EP0238052A2 EP87103902A EP87103902A EP0238052A2 EP 0238052 A2 EP0238052 A2 EP 0238052A2 EP 87103902 A EP87103902 A EP 87103902A EP 87103902 A EP87103902 A EP 87103902A EP 0238052 A2 EP0238052 A2 EP 0238052A2
Authority
EP
European Patent Office
Prior art keywords
cable
strand
cavities
cables
cable harness
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
EP87103902A
Other languages
German (de)
French (fr)
Other versions
EP0238052B1 (en
EP0238052A3 (en
Inventor
Christian Schmidt
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.)
KSB AG
Original Assignee
KSB AG
Klein Schanzlin and Becker AG
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 KSB AG, Klein Schanzlin and Becker AG filed Critical KSB AG
Priority to AT87103902T priority Critical patent/ATE82085T1/en
Publication of EP0238052A2 publication Critical patent/EP0238052A2/en
Publication of EP0238052A3 publication Critical patent/EP0238052A3/en
Application granted granted Critical
Publication of EP0238052B1 publication Critical patent/EP0238052B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/04—Flexible cables, conductors, or cords, e.g. trailing cables
    • H01B7/046—Flexible cables, conductors, or cords, e.g. trailing cables attached to objects sunk in bore holes, e.g. well drilling means, well pumps
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/22—Metal wires or tapes, e.g. made of steel
    • H01B7/221—Longitudinally placed metal wires or tapes
    • H01B7/223—Longitudinally placed metal wires or tapes forming part of a high tensile strength core

Definitions

  • the invention relates to a cable harness according to the preamble of the main claim.
  • Such machines are usually lowered and installed in a well shaft by means of slings.
  • the supply lines necessary for the electric drive motors are generally inserted watertight in the motor or its junction box and must also be lowered into the well shaft during the lowering process. Due to the large number of different drive motors, correspondingly different connection cables are also used.
  • control lines are additionally installed, which are connected to above-ground switching and monitoring devices. Since these control lines are very sensitive in contrast to the electrical connection cables, it must be ensured that these cables are reliably protected during the entire operating time.
  • the fastening clamps or the like have been found to be negative because they constrict the insulation material of the cables and excessive material fatigue occurs at these points, so that leaks or chafing occur after a certain time. Furthermore, with large installation depths, the weight of the cable can become too large and, in unfavorable cases, the insulation can detach from the live conductor and tear. Wrapping the cables together using suitable materials or bundles using rubber-lined clamps or routing the cables in separate pipes has proven to be of little use in the course of time.
  • the invention has for its object to develop a cable holder that is easy to attach and ensures secure protection.
  • the machine to be lowered is provided with a rope firmly attached to it, which remains permanently connected to the unit and is suspended in the opening area of the well shaft after the unit has been lowered.
  • the elastic strand is pushed or pressed over this rope.
  • the cavity or cavities remaining within the strand take up the sensitive control cables or sensor lines and the actual power supply cables are placed on the outside of the strand and combined to form a uniform whole by means of a bandage. This ensures reliable protection in a simple manner.
  • the arrangement of the sensitive control lines within the line sufficiently protects them against any damage and other external influences.
  • the integration of the steel cable lowering the machine into the cable harness and within the extruded profile results in a structure that is insensitive to any axial loads and prevents mutual damage.
  • an embodiment of the invention provides that one or more of the cavities are accessible from the outside through a longitudinal slot in the strand.
  • the elastic strand can be supplied with the machine by the meter and pressed either beforehand or during the lowering process using the attachment means attached to the machine, which can be a rope or a chain. The subsequent connection of the connecting cables to the strand and the attachment of the bandage is then only a simple operation.
  • Another embodiment provides that the strand is formed in several parts.
  • the strand can be assembled from different shell-shaped pieces in order to enable a corresponding adaptation to the number and shape of the cables used in each case.
  • the strand could consist of individual parts of approximately 1 to 2 m in length, which are then successively attached to the lifting means.
  • FIG. 1 shows a cable harness in which the stop means (1) connected to the machine to be lowered, here a steel cable, is surrounded by an elastic profiled cord (2). Since the strand (2) is provided with longitudinal slots (3), it can be pressed in a simple manner over the lifting means (1), or a control cable (4) provided with different lines can be pressed into the strand.
  • Four further connecting cables (5) securing the power supply are located in the outer contour of the strand (2) in recesses (6).
  • a cohesive bandage (7) presses the parts together and brings about a secure cohesion of the individual parts. As a result of the arrangement of the control cable (4) within the strand (2), it is reliably protected against damage or external influences.
  • Fig. 2 differs from Fig. 1 in that only a single connection cable (5) is attached outside the strand (2), within which the individual lines are housed.
  • a bandage (7) also ensures secure cohesion here.
  • the bandage (7) can consist of the known materials that ensure reliable protection against moisture and the like.

Landscapes

  • Ropes Or Cables (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)
  • Installation Of Indoor Wiring (AREA)
  • Insulated Conductors (AREA)

Abstract

The invention relates to an elastic, profiled strand for the formation of cable strands. In this arrangement, cavities are formed inside the strand, into which can be inserted at least one means of retention and at least one electrical control cable. Externally, the strand is surrounded by one or more connecting cables, a binding surrounding the entirety ensuring the integrity of the cable strand. <IMAGE>

Description

Die Erfindung betrifft einen Kabelstrang gemäß dem Oberbegriff des Hauptanspruches.The invention relates to a cable harness according to the preamble of the main claim.

Derartige Maschinen, insbesondere Tauch- oder Unterwasser­motorpumpen, werden üblicherweise mittels Anschlagmittel in einem Brunnenschacht abgesenkt und dort installiert. Die für die elektrischen Antriebsmotoren notwendigen Versorgungsleitungen sind im allgemeinen wasserdicht in dem Motor bzw. dessen Anschlußkasten eingeführt und müssen während des Absenkvorganges ebenfalls in den Brunnenschacht hinabgelassen werden. Aufgrund der Vielzahl der unterschiedlichen Antriebsmotoren sind auch demzufolge entsprechend unterschiedliche Anschlußkabel in Gebrauch. Für diejenigen Motoren, bzw. die davon angetriebenen Maschinen, die mit einer sogenannten Überwachungseinrichtung versehen sind, werden zusätzlich Steuerleitungen installiert, die mit oberirdisch angebrachten Schalt- und Überwachungs­organen verbunden sind. Da diese Steuerleitungen im Gegensatz zu den elektrischen Anschlußkabeln sehr empfindlich sind, muß sichergestellt sein, daß während der gesamten Betriebsdauer ein zuverlässiger Schutz dieser Kabel sichergestellt ist. Der Befestigung dienende Schellen oder dgl. haben sich als negativ herausgestellt, weil diese das Isolationsmaterial der Kabel einschnüren und an diesen Stellen eine übermäßige Materialermüdung erfolgt, so daß nach einer gewissen Zeit Undichtigkeiten bzw. Scheuerstellen auftreten. Weiterhin kann bei großen Einbautiefen das Eigengewicht der Kabel zu groß werden und in ungünstigen Fällen sich die Isolation von dem stromführenden Leiter lösen und zerreißen. Gemeinsames Umwickeln der Kabel mittels geeigneter Materialien bzw. Bündeln mittels gummi­gefütterter Schellen oder auch das Führen der Kabel in separaten Rohren haben sich im Laufe der Zeit als wenig zweckmäßig erwiesen.Such machines, in particular submersible or submersible motor pumps, are usually lowered and installed in a well shaft by means of slings. The supply lines necessary for the electric drive motors are generally inserted watertight in the motor or its junction box and must also be lowered into the well shaft during the lowering process. Due to the large number of different drive motors, correspondingly different connection cables are also used. For those motors, or the machines driven by them, which are provided with a so-called monitoring device, control lines are additionally installed, which are connected to above-ground switching and monitoring devices. Since these control lines are very sensitive in contrast to the electrical connection cables, it must be ensured that these cables are reliably protected during the entire operating time. The fastening clamps or the like have been found to be negative because they constrict the insulation material of the cables and excessive material fatigue occurs at these points, so that leaks or chafing occur after a certain time. Furthermore, with large installation depths, the weight of the cable can become too large and, in unfavorable cases, the insulation can detach from the live conductor and tear. Wrapping the cables together using suitable materials or bundles using rubber-lined clamps or routing the cables in separate pipes has proven to be of little use in the course of time.

Der Erfindung liegt die Aufgabe zugrunde, eine Kabel­halterung zu entwickeln, die einfach anzubringen ist und einen sicheren Schutz gewährleistet.The invention has for its object to develop a cable holder that is easy to attach and ensures secure protection.

Die Lösung dieser Aufgabe erfolgt gemäß dem kennzeichnenden Teil des Hauptanspruches. Hierbei wird die abzusenkende Maschine mit einem fest daran angebrachten Seil versehen, welches ständig mit dem Aggregat verbunden bleibt und nach dem Absenken des Aggregates im Öffnungsbereich des Brunnenschachtes zugänglich aufgehängt wird. Über dieses Seil wird der elastische Strang geschoben oder gedrückt. Der oder die innerhalb des Stranges verbleibenden Hohlräume nehmen die empfindlichen Steuerkabel bzw. Sensorleitungen auf und die eigentlichen Stromversorgungskabel werden außen an den Strang angelegt und mittels einer Bandage zu einem einheitlichen Ganzen vereinigt. Dadurch wird in einfacher Weise ein zuverlässiger Schutz gewährleistet. Das Anordnen der empfindlichen Steuerleitungen innerhalb des Stranges schützt diese in ausreichendem Maß gegen jegliche Beschädigungen söwie andere äußeren Einflüsse. Die Integration des die Maschine absenkenden Stahlseiles in den Kabelstrang sowie innerhalb des Strangprofiles ergibt ein gegen jegliche Axialbelastungen unempfindliches Gebilde und verhindert gegenseitige Beschädigungen.This object is achieved in accordance with the characterizing part of the main claim. In this case, the machine to be lowered is provided with a rope firmly attached to it, which remains permanently connected to the unit and is suspended in the opening area of the well shaft after the unit has been lowered. The elastic strand is pushed or pressed over this rope. The cavity or cavities remaining within the strand take up the sensitive control cables or sensor lines and the actual power supply cables are placed on the outside of the strand and combined to form a uniform whole by means of a bandage. This ensures reliable protection in a simple manner. The arrangement of the sensitive control lines within the line sufficiently protects them against any damage and other external influences. The integration of the steel cable lowering the machine into the cable harness and within the extruded profile results in a structure that is insensitive to any axial loads and prevents mutual damage.

Eine Ausgestaltung der Erfindung sieht vor, daß einer oder mehrere der Hohlräume durch einen im Strang angebrachten Längsschlitz von außen zugänglich sind. Somit kann der elastische Strang als Meterware mit der Maschine mitgeliefert werden und entweder vorher oder während des Absenkvorganges über das an der Maschine angebrachte Anschlagmittel, welches ein Seil oder eine Kette sein kann, gedrückt. Das anschließende Anlegen der Anschlußkabel an den Strang sowie die Anbringung der Bandage ist dann nur noch ein einfacher Arbeitsvorgang. Eine weitere Ausgestaltung sieht vor, daß der Strang mehrteilig ausgebildet ist. Somit kann der Strang aus verschiedenen schalenförmigen Stücken zusammengesetzt werden, um eine entsprechende Anpassung an die jeweils Verwendung findende Anzahl und Form der Kabel zu ermöglichen. Desgleichen könnte, abhängig von dem jeweils Verwendung findenden Material, der Strang aus Einzelteilen von ca. 1 - 2 m Länge bestehen, die dann aufeinanderfolgend an dem Anschlagmittel angebracht werden.An embodiment of the invention provides that one or more of the cavities are accessible from the outside through a longitudinal slot in the strand. Thus, the elastic strand can be supplied with the machine by the meter and pressed either beforehand or during the lowering process using the attachment means attached to the machine, which can be a rope or a chain. The subsequent connection of the connecting cables to the strand and the attachment of the bandage is then only a simple operation. Another embodiment provides that the strand is formed in several parts. Thus, the strand can be assembled from different shell-shaped pieces in order to enable a corresponding adaptation to the number and shape of the cables used in each case. Likewise, depending on the material used in each case, the strand could consist of individual parts of approximately 1 to 2 m in length, which are then successively attached to the lifting means.

Ein Ausführungsbeispiel der Erfindung ist in den Zeichnungen dargestellt und wird im folgenden näher beschrieben. Es zeigen die.

  • Fig. 1 einen Querschnitt durch einen Kabelstrang mit fünf einzelnen Leitungen und die
  • Fig. 2 einen Querschnitt durch einen Kabelstrang mit zwei Leitungen.
An embodiment of the invention is shown in the drawings and will be described in more detail below. They show.
  • Fig. 1 shows a cross section through a cable harness with five individual lines and
  • Fig. 2 shows a cross section through a cable harness with two lines.

Die Fig. 1 zeigt einen Kabelstrang, bei dem das mit der abzusenkenden Maschine verbundene Anschlagmittel (1), hier ein Stahlseil, von einem elastischen profilierten Strang (2) umgeben ist. Da der Strang (2) mit Längsschlitzen (3) versehen ist, läßt er sich in einfacher Weise über das Anschlag­mittel (1) drücken, bzw. läßt sich ein mit verschiedenen Leitungen versehenes Steuerkabel (4) in den Strang hinein­drücken. Vier weitere, die Stromversorgung sichernde Anschlußkabel (5) liegen an der Außenkontur des Stranges (2) in Ausnehmungen (6). Eine den Zusammenhalt bewirkende Bandage (7) preßt die Teile zusammen und bewirkt einen sicheren Zusammenhalt der Einzelteile. Infolge der Anordnung des Steuerkabels (4) innerhalb des Stranges (2) ist dieses in zuverlässiger Weise gegen Beschädigungen bzw. äußere Einflüsse geschützt.1 shows a cable harness in which the stop means (1) connected to the machine to be lowered, here a steel cable, is surrounded by an elastic profiled cord (2). Since the strand (2) is provided with longitudinal slots (3), it can be pressed in a simple manner over the lifting means (1), or a control cable (4) provided with different lines can be pressed into the strand. Four further connecting cables (5) securing the power supply are located in the outer contour of the strand (2) in recesses (6). A cohesive bandage (7) presses the parts together and brings about a secure cohesion of the individual parts. As a result of the arrangement of the control cable (4) within the strand (2), it is reliably protected against damage or external influences.

Die Fig. 2 unterscheidet sich zur Fig. 1 insofern, als hier außerhalb des Stranges (2) nur ein einziges Anschlußkabel (5) angebracht ist, innerhalb dessen die einzelnen Leitungen untergebracht sind. Auch hierbei bedingt eine Bandage (7) den sicheren Zusammenhalt. Die Bandage (7) kann dabei aus den bekannten Materialien bestehen, die einen sicheren Schutz gegen Feuchtigkeit und dergleichen gewährleisten.Fig. 2 differs from Fig. 1 in that only a single connection cable (5) is attached outside the strand (2), within which the individual lines are housed. A bandage (7) also ensures secure cohesion here. The bandage (7) can consist of the known materials that ensure reliable protection against moisture and the like.

Claims (3)

1. Kabelstrang zur Verbindung von in Schächten absenkbare Maschinen mit einer elektrischen Stromquelle, wobei Leitungskabel und Steuerkabel zu einem Kabelstrang gebündelt sind, insbesondere zur Verwendung bei Unterwassermotorpumpen, dadurch gekenn­zeichnet, daß ein elastischer profilierter Strang (2) zwei oder mehrere Hohlräume aufweist, wobei einer der Hohlräume ein ständig mit der U-Pumpe verbundenes Anschlagmittel (1) aufnimmt und der oder die anderen Hohlräume mit der U-Pumpe verbundene Steuerkabel (4) aufnehmen, daß die Außenseite des Stranges (2) ein oder mehrere Ausnehmungen (6) zur Anlage eines oder mehrerer elektrischer Anschlußkabel (5) aufweist und daß eine Bandage (7) alle Teile zusammenhält.1. Cable harness for connecting machines that can be lowered into shafts with an electrical power source, whereby cable and control cable are bundled into a cable harness, in particular for use in submersible motor pumps, characterized in that an elastic profiled strand (2) has two or more cavities, one of which the cavities receive a stop means (1) permanently connected to the U-pump and the other cavities or control cables (4) connected to the U-pump accommodate that the outside of the line (2) has one or more recesses (6) for contact one or more electrical connection cables (5) and that a bandage (7) holds all parts together. 2. Kabelstrang nach Anspruch 1, dadurch gekennzeichnet, daß einer oder mehrere der Hohlräume durch einen im Strang (2) angebrachten Längsschlitz (3) von außen zugänglich sind.2. Cable loom according to claim 1, characterized in that one or more of the cavities are accessible from the outside through a longitudinal slot (3) provided in the lane (2). 3. Kabelstrang nach den Ansprüchen 1 und 2, dadurch gekennzeichnet, daß der Strang (2) mehrteilig ausgebildet ist.3. Cable harness according to claims 1 and 2, characterized in that the strand (2) is constructed in several parts.
EP87103902A 1986-03-20 1987-03-17 Cable rope for electrically driven machines Expired - Lifetime EP0238052B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87103902T ATE82085T1 (en) 1986-03-20 1987-03-17 CABLE HARNESS FOR ELECTRICALLY POWERED MACHINES.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3609445 1986-03-20
DE19863609445 DE3609445A1 (en) 1986-03-20 1986-03-20 WIRING HARNESS FOR ELECTRICALLY DRIVEN MACHINES

Publications (3)

Publication Number Publication Date
EP0238052A2 true EP0238052A2 (en) 1987-09-23
EP0238052A3 EP0238052A3 (en) 1989-03-22
EP0238052B1 EP0238052B1 (en) 1992-11-04

Family

ID=6296881

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87103902A Expired - Lifetime EP0238052B1 (en) 1986-03-20 1987-03-17 Cable rope for electrically driven machines

Country Status (4)

Country Link
EP (1) EP0238052B1 (en)
AT (1) ATE82085T1 (en)
DE (1) DE3609445A1 (en)
ES (1) ES2036536T3 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2670602A1 (en) * 1990-12-18 1992-06-19 Silec Liaisons Elec ASSEMBLY OF ELECTRIC CABLES.
EP1341190A1 (en) * 2002-02-28 2003-09-03 Services Petroliers Schlumberger Electrical cable for downhole applicvations
WO2004095475A2 (en) * 2003-04-23 2004-11-04 Baker Hughes Incorporated Control line protector
CN108916117A (en) * 2018-08-07 2018-11-30 中建津泓（天津）建设发展有限公司 A kind of hoisting structure and hanging method of immersible pump

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB421073A (en) * 1933-07-14 1934-12-13 Pirelli General Cable Works Improvements in or relating to flexible multicore electric cables
DE2117235A1 (en) * 1971-04-08 1972-10-12 Metallgesellschaft Ag Cable system
US3992565A (en) * 1975-07-07 1976-11-16 Belden Corporation Composite welding cable having gas ducts and switch wires therein

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE532362C (en) * 1931-09-17 Garvenswerke Suspension of underwater pumps
US2627816A (en) * 1948-04-01 1953-02-10 Herbert W Kaatz Pump
US2946929A (en) * 1957-05-24 1960-07-26 Gen Electric Panelboard wiring support arrangement
US3211828A (en) * 1963-03-28 1965-10-12 Whitaker Cable Corp Protective and latching clip for wiring harness
IL30347A0 (en) * 1967-07-10 1968-09-26 Oliveira A De Submersible pump
DE1977072U (en) * 1967-10-27 1968-01-18 Flygt Pumpem G M B H EXPLOSION-PROOF SUBMERSIBLE THREE-PHASE MOTOR.
AT333904B (en) * 1971-10-07 1976-12-27 Vortex Pumpen Ag REACTOR TANK, IN PARTICULAR FOR BOILING WATER REACTORS
DE3135426A1 (en) * 1980-10-09 1982-06-24 Deutsche Itt Industries Gmbh, 7800 Freiburg FOLDABLE PUMP SYSTEM

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB421073A (en) * 1933-07-14 1934-12-13 Pirelli General Cable Works Improvements in or relating to flexible multicore electric cables
DE2117235A1 (en) * 1971-04-08 1972-10-12 Metallgesellschaft Ag Cable system
US3992565A (en) * 1975-07-07 1976-11-16 Belden Corporation Composite welding cable having gas ducts and switch wires therein

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2670602A1 (en) * 1990-12-18 1992-06-19 Silec Liaisons Elec ASSEMBLY OF ELECTRIC CABLES.
EP0491617A1 (en) * 1990-12-18 1992-06-24 Societe Industrielle De Liaisons Electriques - Silec Cable assembly in a trench and a laying-process of a cable assembly in a trench
EP1341190A1 (en) * 2002-02-28 2003-09-03 Services Petroliers Schlumberger Electrical cable for downhole applicvations
WO2004095475A2 (en) * 2003-04-23 2004-11-04 Baker Hughes Incorporated Control line protector
WO2004095475A3 (en) * 2003-04-23 2005-01-20 Baker Hughes Inc Control line protector
CN108916117A (en) * 2018-08-07 2018-11-30 中建津泓（天津）建设发展有限公司 A kind of hoisting structure and hanging method of immersible pump
CN108916117B (en) * 2018-08-07 2020-03-17 中建津泓（天津）建设发展有限公司 Hoisting structure and hoisting method of submersible pump

Also Published As

Publication number Publication date
ES2036536T3 (en) 1993-06-01
EP0238052B1 (en) 1992-11-04
DE3609445A1 (en) 1987-09-24
EP0238052A3 (en) 1989-03-22
DE3609445C2 (en) 1992-10-29
ATE82085T1 (en) 1992-11-15

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