MULTIPLE-TUBE FOR HEAT EXCHANGER AND GEOTHERMAL AIR CONDITIONING SYSTEM USING THE SAME

• Main Author: NEMOTO ISAO
• Format: Patent
• Language: English
• Published: 18.11.2010
• Subjects: AIR-CONDITIONING, AIR-HUMIDIFICATION, VENTILATION, USE OF AIRCURRENTS FOR SCREENING; BLASTING; COMBINED HEATING AND REFRIGERATION SYSTEMS; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEAT EXCHANGE IN GENERAL; HEAT PUMP SYSTEMS; 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; LIQUEFACTION SOLIDIFICATION OF GASES; MANUFACTURE OR STORAGE OF ICE; MEANS FOR THERMAL INSULATION IN GENERAL; MECHANICAL ENGINEERING; PIPES; RANGES; REFRIGERATION MACHINES, PLANTS OR SYSTEMS; REFRIGERATION OR COOLING; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; THERMAL INSULATION IN GENERAL; VENTILATING; WEAPONS

PROBLEM TO BE SOLVED: To economically construct a geothermal air conditioning system exchanging heat with ground heat. SOLUTION: In this air conditioning system constituted by burying a tubular body in the ground to exchange heat between a fluid inside of the tubular body and the ground heat, an underground tube 1 is composed of a triple-tube of an inner tube 11, an intermediate tube 12 and an outer tube 13, an intermediate layer is vacuum and has a heat insulating property, and a liquid is made to flow into the inside of the outer tube 13 at a terminal end section above ground, and turn down at a tip section in the ground to be returned on ground from the inner tube 11. As a length of the underground tube 1 is determined to a length enough to exchange heat, and it is unnecessary to make the underground tube penetrate above ground at an opposite side, the geothermal air conditioning system can be economically constructed. COPYRIGHT: (C)2011,JPO&INPIT