COOLING-WATER LEVEL CONTROL DEVICE FOR INCLINED-TYPE CABLE CONTINUOUS CROSSLINKING APPARATUS

PURPOSE:To enable manufacturing a good quality of cable by providing a cooling-water feeding means, a feed-water flow control means, and an interfacial drawing-off means, thereby reliably adjusting the water level of a cooling water and making a crosslinking device operation smooth. CONSTITUTION:Whe...

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Main Authors HOSOYA KOJI, IKEGAMI MASAHIRO, KATSUHARA TOSHIJI, YOSHIKAWA SATORU, UCHIYAMA KAZUHIRO, SUZUKI ATSUSHI, NIHONYANAGI KAZUYUKI
Format Patent
LanguageEnglish
Published 18.06.1993
Subjects
BASIC ELECTRIC ELEMENTS
CABLES
CONDUCTORS
CONTROLLING
ELECTRICITY
INSULATORS
PHYSICS
REGULATING
SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES
SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
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Summary:PURPOSE:To enable manufacturing a good quality of cable by providing a cooling-water feeding means, a feed-water flow control means, and an interfacial drawing-off means, thereby reliably adjusting the water level of a cooling water and making a crosslinking device operation smooth. CONSTITUTION:When starting a cooling-water level control device, a feed-water flow control means 60 is operated, and a flow detection is made. At the same time, limitation is made of the degree of opening of the flow channels and the number of revolutions of a pump in a cooling-water feeding means 54, so as to make a control to maintain the quantity of feed water to be fixed, independently of the internal pressure of a crosslinking pipe 50. When the water level in a cooling section 52 amounts to several tens of percent, a state of feeding a fixed-flow cooling water is changed to a flow-controlled state based on the water level in the cooling section 52 and the quantity of feed water. Under a condition in which the cooling water in the section 52 reaches a maximal level to flow down from a water discharge pipe 57, regulation is made of the cooling-water transfer quantity in accordance with the water level in a storage water tub 58. Further, the suspended matter mixed into the cooling water is removed through operation of an interfacial draw-off means 62. This enables accurately controlling the quantity of feed water and reliably regulating the level of the water to produce a cable smoothly and reliably.
Bibliography:Application Number: JP19910336313