EP0144905A2 - Method and device for cooling a cable jacket - Google Patents
Method and device for cooling a cable jacket Download PDFInfo
- Publication number
- EP0144905A2 EP0144905A2 EP84114370A EP84114370A EP0144905A2 EP 0144905 A2 EP0144905 A2 EP 0144905A2 EP 84114370 A EP84114370 A EP 84114370A EP 84114370 A EP84114370 A EP 84114370A EP 0144905 A2 EP0144905 A2 EP 0144905A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- cooling
- lubricant
- water
- separator
- cooling water
- 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
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000000314 lubricant Substances 0.000 claims abstract description 35
- 239000000498 cooling water Substances 0.000 claims abstract description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 238000003860 storage Methods 0.000 claims description 11
- 238000004140 cleaning Methods 0.000 claims description 5
- 239000013505 freshwater Substances 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 230000005484 gravity Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 238000000926 separation method Methods 0.000 abstract description 4
- 239000003000 extruded plastic Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 abstract 1
- 238000001125 extrusion Methods 0.000 description 6
- 238000000465 moulding Methods 0.000 description 4
- 239000000654 additive Substances 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 229920001515 polyalkylene glycol Polymers 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/0016—Apparatus or processes specially adapted for manufacturing conductors or cables for heat treatment
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/06—Insulating conductors or cables
- H01B13/14—Insulating conductors or cables by extrusion
- H01B13/145—Pretreatment or after-treatment
Definitions
- the invention relates to a method and an apparatus for cooling a cable provided with a jacket made of cross-linkable plastic material, the jacket being extruded through a nozzle with a long flow path and by means of a lubricant film containing water-soluble polyoxyalkylene located between the jacket and the inner surface of the nozzle is deformed, after which the cable enters a cooling zone, where the jacket is cooled with pressurized water.
- the invention is therefore based on the object of improving the aforementioned prior art with regard to ecological and economic requirements and possibly making better use of the components used.
- the cooling water in the separator is brought to a temperature between 60 and 120 ° C, preferably brought between 80 and 95 ° C, which applies to numerous members of the group of polyalkylene glycols.
- the inversion temperature can vary depending on the nature of the lubricant, so that the instructions should be to keep the cooling water in the separator above the inversion temperature in any case.
- the secondary circuit as it is used to separate the lubricant or molding agent, should normally be put into operation as soon as the amount of additive in the main cooling water circuit has reached approx. 5 to 10% by weight. Below 5% by weight, the operation of the secondary circuit is neither necessary nor worthwhile. Above 10% by weight, the efficiency of the cooling water drops noticeably.
- the device for performing the above-described method is characterized according to the invention by the features of claim 4. Further advantageous embodiments of the device according to the invention are characterized in claims 5 to 12.
- the invention has made it possible to save resources with simple means without major investment, in particular to reduce the constant accumulation of large amounts of contaminated waste water to almost zero.
- the lubricant resulting from the separation can either be disposed of or, in certain cases, can also be cleaned and reused in a special process which is not the subject of the present invention.
- the associated figure shows - partly in section, partly more schematically - a part of the cable extruder with the associated cooling and separation system according to the invention.
- the electrical conductor is designated, with 12 the cable sheath made of cross-linkable plastic material, in particular about polyethylene, the mass being applied in a manner known per se around a mandrel not shown in the picture and in the nozzle 18 with a long flow path with further cross-linking gradually solidifies.
- the lubricant to be introduced between the cable sheath 12 and the inner surface 14 of the nozzle has its inlet at the point denoted by 16.
- the cooling zone 20 In the right part of the extrusion system is the cooling zone 20, in which the extruded cable passes through the cooling water 22, after which the cable emerges outdoors.
- the actual cooling circuit or main circuit begins with the discharge line 24, in which the cooling water is transferred from the cooling zone 20 to the reservoir 26.
- This has an outlet 28, which opens into the cooler 30, which is, for example, a coil coil cooler, which is fed in countercurrent with factory cooling water.
- the cooling water is converted from this cooler 30 by means of a pump 32 conveyed upwards into the filter device 34.
- This can in particular be a solid filter, for example a candle filter or combined filter and cleaning systems.
- the cooled and purified water then passes again into the cooling zone 20 via the feed 36. As far as the main circuit.
- the secondary circuit takes its output from the reservoir 26, from which water can be branched off into the separator 44 via the secondary line 40 and a secondary pump 42 arranged therein.
- the separator 44 has electrical heating elements 46 which can be regulated thermostatically.
- the separator 44 has at least two measuring devices 48, e.g. Conductivity measuring cells which, in conjunction with an actuating device, can give actuating pulses to the outlet valve 50.
- the storage container 26 also has such a measuring device 47, which controls the secondary pump 42.
- the cooling system is emptied, which can happen, for example, through the cooling water outlet valve 52 and if the extrusion of a cable sheath is started, a sufficient amount of cooling water must first be fed into the reservoir 26 via the fresh water supply line. This cooling water reaches the cooling zone 20 of the extrusion area in the manner described via cooler 30, pump 32, filter device 34 and pipeline 36. There, the cooling water 22 is enriched with the lubricant or molding agent that is soluble in it.
- the concentration of lubricant in the reservoir 26 increases during production. This is detected by the measuring device 47.
- the measuring device 47 triggers an actuating pulse which sets the secondary pump 42 into operation.
- the lubricant-containing cooling water now begins to fill the separator 44. Since this is heated in such a way that the inversion temperature is exceeded, the separator 44 separates into the heavier lubricant, which settles in the foot area of the separator with a residual water content of, for example, 50% by weight, and the somewhat lighter, almost lubricant-free water which forms higher layer in separator 44.
- the two measuring cells 48 in the separator 44 are, for example, also conductivity measuring cells which are set to the conductivity of the concentrated lubricant. If the remote lubricant reaches the level of the upper measuring cell 48 in the course of operating the secondary circuit, this sends an actuating pulse to the outlet valve 50, after which it opens and the lubricant is drained into a disposal container or the like. The level of the lubricant then drops to to the level of the lower measuring cell 48, this triggers an actuating pulse to close the outlet valve 50. In this way, known minima / maxima level control prevents largely lubricant-free cooling water from being lost via the outlet valve 50.
- the excess low-lubricant cooling water runs over the Ver Binding line 54 continuously back into the storage container 26.
- the easiest way to switch off the secondary circuit is by automatically switching off the secondary pump 42 as soon as the amount of lubricant in the cooling water has dropped below the predetermined value of, for example, 5% by weight of lubricant.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
Description
Die Erfindung bezieht sich auf ein Verfahren sowie eine Vorrichtung zum Kühlen eines mit einem Mantel aus vernetzbarem Kunststoffmaterial versehenen Kabels, wobei der Mantel bei seiner Extrusion durch eine Düse mit langem Fließweg geführt und mittels eines zwischen Mantel und Innenfläche der Düse befindlichen, wasserlösliches Polyoxyalkylen enthaltenden Schmiermittelfilmes nachverformt wird, wonach das Kabel in eine Kühlzone eintritt, wo der Mantel mit unter Druck stehendem Wasser abgekühlt wird.The invention relates to a method and an apparatus for cooling a cable provided with a jacket made of cross-linkable plastic material, the jacket being extruded through a nozzle with a long flow path and by means of a lubricant film containing water-soluble polyoxyalkylene located between the jacket and the inner surface of the nozzle is deformed, after which the cable enters a cooling zone, where the jacket is cooled with pressurized water.
Einzelheiten eines solchen Verfahrens zum Extrudieren und Kühlen eines Kabelmantels lassen sich der DE-AS 21 64 560 entnehmen. Dabei wurde bisher so vorgegangen, daß man das Kühlwasser unter dem zur Formstabilisierung des Kabelmantels erwünschten Druck zwischen 5 und etwa 30 kg/cm2 in die Kühlzone einbrachte, wo es sich mit dem auf dem Kabelmantel befindlichen Schmiermittel- bzw. Formhilfsmittel-Schicht anreicherte, wonach man das so angereicherte Kühlwasser in aller Regel direkt in den Abwasserkanal weiterführte. Ein solches Verfahren erscheint im Hinblick auf bestimmte Fertigungsstandorte ebenso wie im Hinblick auf die erwünschte Verfahrensökonomie unbefriedigend.Details of such a method for extruding and cooling a cable jacket can be found in DE-AS 21 64 560. So far, the procedure was such that the cooling water was introduced into the cooling zone under the pressure desired to stabilize the shape of the cable jacket between 5 and about 30 kg / cm 2 , where it accumulated with the lubricant or molding aid layer on the cable jacket, after which the cooling water enriched in this way was generally passed directly into the sewer. Such a process appears unsatisfactory with regard to certain production locations as well as with regard to the desired process economy.
Der Erfindung liegt daher die Aufgabe zugrunde, den vorgenannten Stand der Technik im Hinblick auf ökologische und ökonomische Anforderungen zu verbessern und womöglich die eingesetzten Komponenten besser zu nutzen.The invention is therefore based on the object of improving the aforementioned prior art with regard to ecological and economic requirements and possibly making better use of the components used.
Diese Aufgabe wurde bei einem Verfahren der eingangsgenannten Art nunmehr dadurch gelöst, daß das für die Kühlzone benötigte Wasser im wesentlichen im Kreislauf geführt wird, mit einer Möglichkeit der Zwischenkühlung und Zwischenreinigung, und daß parallel dazu ein Anteil des Wassers in einen Nebenkreislauf abzweigbar ist, wo das Wasser einen Separator durchläuft, in dem es oberhalb der Inversionstemperatur der Schmiermittel-/Wasser-Lösung unter dem Einfluß der Schwerkraft von dem in ihm enthaltenen-Schmiermittel befreit und danach in den Kühlkreislauf rückgeführt wird.This object has now been achieved in a method of the type mentioned above in that the water required for the cooling zone is essentially circulated, with a possibility of intermediate cooling and intermediate cleaning, and that in parallel a portion of the water can be branched off into a secondary circuit, where the water passes through a separator in which it is freed from the lubricant contained in it above the inversion temperature of the lubricant / water solution under the influence of gravity and is then returned to the cooling circuit.
Bisher scheiterte die Wiederverwendung bzw. Rückführung des Kühlwassers an der Frage der kostengünstigenAbtrennung des darin gelösten Schmiermittels, das sich im Lauf der Kabelmantelextrusion zunehmend anreichert. überraschenderweise wurde nun im Zuge der umfangreichen Versuche zur Auffindung der erfinderischen Lösung festgestellt, daß sich Schmier- bzw. Formmittel aus der Gruppe der wasserlöslichen Polyoxyalkylene, insbesondere Äthylenoxid-Propylenoxid-Copolymere mit einem Molekulargewicht von mehr als 120 leicht durch Erhitzen auf eine Temperatur oberhalb der sogenannten Inversionstemperatur abtrennen lassen, da oberhalb dieser Temperatur die Lösungsfähigkeit des Wassers für diese Zusätze schlagartig abnimmt, d.h. die entsprechenden Zusätze scheiden sich aus und trennen sich unter Einwirkung der natürlichen Schwerkraft von dem in der Regel leichteren Wasser.So far, the reuse or recycling of the cooling water has failed due to the question of the cost-effective separation of the lubricant dissolved in it, which increasingly accumulates during the cable sheath extrusion. Surprisingly, it has now been found in the course of the extensive attempts to find the inventive solution that lubricants or molders from the group of water-soluble polyoxyalkylenes, in particular ethylene oxide-propylene oxide copolymers with a molecular weight of more than 120, can easily be obtained by heating to a temperature above the Allow so-called inversion temperature to be removed, since above this temperature the solubility of the water for these additives suddenly drops, ie the corresponding additives are eliminated and separate from the generally lighter water under the influence of natural gravity.
Bei einer bevorzugten Ausführungsform der Erfindung wird das Kühlwasser im Separator auf eine Temperatur zwischen 60 und 120 °C, vorzugsweise zwischen 80 und 95 °C gebracht, was für zahlreiche Mitglieder der Gruppe der Polyalkylenglykole gilt. Die Inversionstemperatur kann je nach der Natur des Schmiermittels variieren, so daß nach der Anweisung zu verfahren ist, das Kühlwasser im Separator auf jeden Fall oberhalb der betreffenden Inversionstemperatur zu halten.In a preferred embodiment of the invention, the cooling water in the separator is brought to a temperature between 60 and 120 ° C, preferably brought between 80 and 95 ° C, which applies to numerous members of the group of polyalkylene glycols. The inversion temperature can vary depending on the nature of the lubricant, so that the instructions should be to keep the cooling water in the separator above the inversion temperature in any case.
Der Nebenkreislauf, wie er zur Abtrennung des Schmier- bzw. Formmittels dient, sollte in der Regel in Betrieb gesetzt werden, sobald die Menge an Zusatz im Kühlwasser-Hauptkreislauf ca. 5 bis 10 Gew.% erreicht hat. Unterhalb 5 Gew.% ist der Betrieb des Nebenkreislaufes weder notwendig noch lohnend. Oberhalb 10 Gew.% nimmt der Wirkungsgrad des Kühlwassers schon merklich ab.The secondary circuit, as it is used to separate the lubricant or molding agent, should normally be put into operation as soon as the amount of additive in the main cooling water circuit has reached approx. 5 to 10% by weight. Below 5% by weight, the operation of the secondary circuit is neither necessary nor worthwhile. Above 10% by weight, the efficiency of the cooling water drops noticeably.
Die Vorrichtung zur Durchführung des vorbeschriebenen Verfahrens ist gemäß der Erfindung gekennzeichnet durch die Merkmale des Anspruches 4. Weitere vorteilhafte Ausgestaltungen der erfindungsgemäßen Vorrichtung sind in den Ansprüchen 5 bis 12 gekennzeichnet.The device for performing the above-described method is characterized according to the invention by the features of claim 4. Further advantageous embodiments of the device according to the invention are characterized in claims 5 to 12.
Durch die Erfindung ist es möglich geworden, mit einfachen Mitteln ohne größeren Investitionsaufwand Betriebsmittel einzusparen, insbesondere das stetige Anfallen großer Mengen an verunreinigten Abwässern fast auf Null zu reduzieren. Das bei der Trennung anfallende Schmiermittel kann entweder der Entsorgung zugeführt oder in bestimmten Fällen auch wieder in einem speziellen Verfahren, das nicht Gegenstand der vorliegenden Erfindung ist, gereinigt und neu eingesetzt werden.The invention has made it possible to save resources with simple means without major investment, in particular to reduce the constant accumulation of large amounts of contaminated waste water to almost zero. The lubricant resulting from the separation can either be disposed of or, in certain cases, can also be cleaned and reused in a special process which is not the subject of the present invention.
Im folgenden wird die Erfindung anhand eines Ausführungsbeispieles näher erläutert, aus dem sich weitere Merkmale und Vorteile entnehmen lassen. Die zugehörige Figur zeigt - teilweise im Schnitt, teilweise mehr schematisch - einen Teil des Kabelextruders mit der zugehörigen erfindungsgemäßen Kühl-und Trennanlage.The invention is explained in more detail below with the aid of an exemplary embodiment, from which further features and advantages can be found. The associated figure shows - partly in section, partly more schematically - a part of the cable extruder with the associated cooling and separation system according to the invention.
Im oberen Teil der Figur sieht man im Schnitt den Extrusionsvorgang des Kabels. Mit 10 ist der elektrische Leiter bezeichnet, mit 12 der Kabelmantel aus vernetzbarem Kunststoffmaterial, insbesondere etwa Polyäthylen, wobei die Masse um einen im Bild nicht näher bezeichneten Dorn in an sich bekannter Weise aufgebracht wird und sich in der Düse 18 mit langem Fließweg unter weiterer Vernetzung allmählich festigt. Das hierbei zwischen dem Kabelmantel 12 und der Innenfläche 14 der Düse einzubringende Schmiermittel hat seinen Zulauf an der mit 16 bezeichneten Stelle. Im rechten Teil der Extrusionsanlage befindet sich die Kühlzone 20, in welcher das extrudierte Kabel das Kühlwasser 22 durchläuft, wonach das Kabel ins Freie austritt.In the upper part of the figure you can see in section the extrusion process of the cable. With 10 the electrical conductor is designated, with 12 the cable sheath made of cross-linkable plastic material, in particular about polyethylene, the mass being applied in a manner known per se around a mandrel not shown in the picture and in the nozzle 18 with a long flow path with further cross-linking gradually solidifies. The lubricant to be introduced between the
Der eigentliche Kühlkreislauf bzw. Hauptkreislauf beginnt mit der Abflußleitung 24, in der das Kühlwasser freifallend aus der Kühlzone 20, in den Vorratsbehälter 26 überführt wird. Dieser hat einen Abgang 28, der in den Kühler 30 mündet, bei dem es sich beispielsweise um einen Rohrschlangenkühler handelt, der im Gegenstrom mit Werks-Kühlwasser beschickt wird. Aus diesem Kühler 30 wird das Kühlwasser mittels einer Pumpe 32 nach oben in die Filtereinrichtung 34 befördert. Bei dieser kann es sich insbesondere um einen Feststoff-Filter, etwa ein Kerzenfilter oder kombinierte Filter und Reinigungssysteme handeln. Über die Zuführung 36 gelangt dann das gekühlte und gereinigte Wasser wiederum in die Kühlzone 20. Soweit der Hauptkreislauf.The actual cooling circuit or main circuit begins with the
Der Nebenkreislauf nimmt seinen Ausgang vom Vorratsbehälter 26, von dem über die Nebenleitung 40 und eine darin angeordnete Nebenpumpe 42 Wasser in den Separator 44 abzweigbar ist. Der Separator 44 weist elektrische Heizelemente 46 auf, die thermostatisch regelbar sind. Weiterhin besitzt der Separator 44 mindestens zwei Meßeinrichtungen 48, z.B. Leitfähigkeitsmeßzellen, die in Verbindung mit einer Stelleinrichtung Stellimpulse an das Auslaßventil 50 geben können. Entsprechend weist auch der Vorratsbehälter 26 eine solche Meßeinrichtung 47 auf, welche die Nebenpumpe 42 regelt.The secondary circuit takes its output from the
Im einzelnen ist zur Funktion folgendes auszuführen: Ist die Kühlanlage entleert, was etwa durch das Kühlwasser-Auslaßventil 52 geschehen kann und wird mit der Extrusion eines Kabelmantels begonnen, so ist zunächst in den Vorratsbehälter 26 in ausreichender Menge über die Frischwasserzuleitung 38 Kühlwasser zuzuführen. Dieses Kühlwasser gelangt in der beschriebenen Weise über Kühler 30, Pumpe 32, Filtereinrichtung 34 und Rohrleitung 36 in die Kühlzone 20 des Extrusionsbereiches. Dort reichert sich das Kühlwasser 22 mit dem Schmier- bzw. Formmittel an, das in ihm löslich ist.In detail, the following has to be carried out for the function: If the cooling system is emptied, which can happen, for example, through the cooling water outlet valve 52 and if the extrusion of a cable sheath is started, a sufficient amount of cooling water must first be fed into the
Demgemäß steigt im Laufe der Produktion die Konzentration an Schmiermittel im Vorratsbehälter 26 an. Dies wird durch die Meßeinrichtung 47 erfaßt. Bei Uberschreiten einer vorgegebenen Konzentration an Schmiermittel, vorzugsweise etwa 5 Gew.%, löst die Meßeinrichtung 47 einen Stellimpuls aus, der die Nebenpumpe 42 in Betrieb setzt. Das schmiermittelhaltige Kühlwasser beginnt nun den Separator 44 zu füllen. Da dieser beheizt ist derart, daß die Inversionstemperatur überschritten wird, erfolgt im Separator 44 eine Trennung in das schwerere Schmiermittel, das sich im Fußbereich des Separators absetzt mit einem Restwassergehalt von z.B. 50 Gew.%, und das etwas leichtere fast schmiermittelfreie Wasser, das die höhere Schicht im Separator 44 bildet. Die beiden Meßzellen 48 im Separator 44 sind beispielsweise ebenfalls Leitfähigkeitsmeßzellen, die auf die Leitfähigkeit des konzentrierten Schmiermittels eingestellt sind. Erreicht nun im Laufe des Betreibens des Nebenkreislaufes das abgesetzte Schmiermittel das Niveau der oberen Meßzelle 48, so gibt diese einen Stellimpuls an das Auslaßventil 50, wonach dasselbe sich öffnet und das Schmiermittel abgelassen wird in einen Entsorgungsbehälter oder dgl. Sinkt das Niveau des Schmiermittels dann bis auf die Höhe der unteren Meßzelle 48, so löst diese einen Stellimpuls aus zur Schließung des Auslaßventils 50. Auf diese Weise wird durch eine an sich bekannte Minima-/Maxima-Niveauregelung vermieden, daß weitgehend schmiermittelfreies Kühlwasser über das Auslaßventil 50 verlorengeht. Im übrigen läuft das überschüssige schmiermittelarme Kühlwasser über die Verbindungsleitung 54 kontinuierlich zurück in den Vorratsbehälter 26. Der Nebenkreislauf wird am einfachsten durch automatische Abschaltung der Nebenpumpe 42 wieder abgeschaltet, sobald die Schmiermittelmenge im Kühlwasser unter dem vorgegebenen Wert von z.B. 5 Gew.% Schmiermittel abgesunken ist.Accordingly, the concentration of lubricant in the
- 10 Elektrischer Leiter10 Electrical conductor
- 12 Kabelmantel12 cable sheath
- 14 Innenfläche der Extrusionsdüse14 inner surface of the extrusion die
- 16 Zulauf für das Schmier- bzw. Formmittel16 Inlet for the lubricant or molding agent
- 18 Langdüse18 long nozzle
- 20 Kühlzone20 cooling zone
- 22 Kühlwasser22 cooling water
- 24 Abflußleitung24 drain pipe
- 26 Vorratsbehälter26 storage containers
- 28 Kühlwasserabgang28 Cooling water outlet
- 30 Kühler30 coolers
- 32 Pumpe (im Hauptkreislauf)32 pump (in the main circuit)
- 34 Filtereinrichtung34 filter device
- 36 Zuführung des Kühlwassers in die Kühlzone36 Feeding the cooling water into the cooling zone
- 38 Frischwasserzuleitung (in den Vorratsbehälter)38 fresh water supply line (in the storage container)
- 40 Nebenleitung40 branch line
- 42 Pumpe (im Nebenkreislauf)42 pump (in the secondary circuit)
- 44 Separator44 separator
- 46 Heizelement46 heating element
- 47 Meßeinrichtung im Vorratsbehälter47 Measuring device in the storage container
- 48 Meßeinrichtung im Separator48 measuring device in the separator
- 50 Auslaßventil (am Separator)50 outlet valve (on separator)
- 52 Auslaßventil (am Kühler)52 exhaust valve (on radiator)
- 54 Verbindungsleitung (zwischen Separator und Vorratsbehälter)54 connecting line (between separator and storage container)
Claims (12)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19833343778 DE3343778A1 (en) | 1983-12-03 | 1983-12-03 | METHOD AND DEVICE FOR COOLING A CABLE SHEATH |
DE3343778 | 1983-12-03 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0144905A2 true EP0144905A2 (en) | 1985-06-19 |
EP0144905A3 EP0144905A3 (en) | 1987-07-01 |
EP0144905B1 EP0144905B1 (en) | 1991-07-31 |
Family
ID=6215965
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP84114370A Expired - Lifetime EP0144905B1 (en) | 1983-12-03 | 1984-11-28 | Method and device for cooling a cable jacket |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0144905B1 (en) |
DE (2) | DE3343778A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2768849A1 (en) * | 1997-09-25 | 1999-03-26 | Alsthom Cge Alcatel | CABLE COVERED WITH A SOLID LUBRICANT |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3295163A (en) * | 1964-04-28 | 1967-01-03 | Western Electric Co | Strand cooling apparatus |
FR2124671A5 (en) * | 1970-12-29 | 1972-09-22 | Mitsubishi Petrochemical Co |
-
1983
- 1983-12-03 DE DE19833343778 patent/DE3343778A1/en not_active Withdrawn
-
1984
- 1984-11-28 DE DE8484114370T patent/DE3484866D1/en not_active Expired - Lifetime
- 1984-11-28 EP EP84114370A patent/EP0144905B1/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3295163A (en) * | 1964-04-28 | 1967-01-03 | Western Electric Co | Strand cooling apparatus |
FR2124671A5 (en) * | 1970-12-29 | 1972-09-22 | Mitsubishi Petrochemical Co |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2768849A1 (en) * | 1997-09-25 | 1999-03-26 | Alsthom Cge Alcatel | CABLE COVERED WITH A SOLID LUBRICANT |
EP0905716A1 (en) * | 1997-09-25 | 1999-03-31 | Alcatel | Cable covered with a solid lubricant |
US6146699A (en) * | 1997-09-25 | 2000-11-14 | Alcatel | Cable covered in solid lubricant |
Also Published As
Publication number | Publication date |
---|---|
EP0144905A3 (en) | 1987-07-01 |
DE3484866D1 (en) | 1991-09-05 |
EP0144905B1 (en) | 1991-07-31 |
DE3343778A1 (en) | 1985-06-13 |
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