COOLING TUBE USING COOLING FND OF FUEL BATTERY GENERATING SYSTEM AND ITS MANUFACTURE METHOD

A cooler tube used for the cooling section of a fuel cell power plant system is prepared by inserting a conductive pipe made of copper or stainless steel into a dielectric tube made of a fluorocarbon polymer and shrinking the electric tube on the conductive pipe through a heat treatment so as to sti...

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Bibliographische Detailangaben
Hauptverfasser:	NA, HAN-SOO, KIM, IL-UNG, HUR, DONG-SOO, KIM, GUN-TAG, CHOI, JUN-SOO, SEO, HYUNG-SEOK, CHOI, WONOON, NOH, JOONG-SEOK
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS BLASTING CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OFGENERAL APPLICATION ELECTRICITY ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEAT EXCHANGE IN GENERAL HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS,IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT HEATING JOINTS OR FITTINGS FOR PIPES LIGHTING MEANS FOR THERMAL INSULATION IN GENERAL MECHANICAL ENGINEERING PIPES PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	A cooler tube used for the cooling section of a fuel cell power plant system is prepared by inserting a conductive pipe made of copper or stainless steel into a dielectric tube made of a fluorocarbon polymer and shrinking the electric tube on the conductive pipe through a heat treatment so as to stick the dielectric tube fast to the conductive pipe. Examples of the fluorocarbon polymer used for the present invention are PTFE (polytetrafluoroethylene), FEP (fluorinated ethylene-propylene) and PFA (perfluorinated alkoxy tetrafluoroethylene). In case of using a PTFE tube which is dielectric, the heat treatment shall be carried out at a temperature of 320 to 370 DEG C for 1 to 3 hours so that the ultimate thickness of the PTFE layer on the conductive pipe may be in the range of 0.05 to 0.20 mm.