VACUUM HEAT INSULATION MATERIAL AND EQUIPMENT USING THE SAME

• Main Authors: ARAKI KUNINARI, KASHIWABARA KAZUTERU, ECHIGOYA HISASHI, KAMOTO DAIGORO, ARAI YUSHI
• Format: Patent
• Language: English; Japanese
• Published: 18.05.2015
• Subjects: BLASTING; COLD ROOMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; COOLING OR FREEZING APPARATUS NOT COVERED BY ANY OTHERSUBCLASS; ENGINEERING ELEMENTS AND UNITS; FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEATGENERATING MEANS, IN GENERAL; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEAT PUMP SYSTEMS; HEATING; ICE-BOXES; 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 OR COOLING; REFRIGERATORS; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; THERMAL INSULATION IN GENERAL; VENTILATING; WEAPONS

PROBLEM TO BE SOLVED: To provide a vacuum heat insulation material capable of improving heat insulation performance by reducing heat transmission by a convection current of a gas remaining in a core material used for the vacuum heat insulation material.SOLUTION: In a vacuum heat insulation material 1A, a core material 2 is wrapped with a sheath 3 having gas barrier properties, an inside space of the sheath 3 is decompressed and sealed, a separator 5 in which gas permeability is lower than that of the core material is provided inside the core material 2, and the separator is formed by an inorganic material or an organic material excluding a metal material. The core material 2 is formed by a fiber assembly such as glass wool and the like. The sheath is formed with a resin film being as a base, and configured by laminating a surface protective layer, a gas barrier layer and a thermal fusion layer. A gas adsorbent 4 is arranged in the inside space of the sheath 3, and the separator 5 is arranged in the middle position of the core material 2. 【課題】真空断熱材に用いる芯材中に残存するガスの対流による熱伝達を低減することで断熱性能を向上できる真空断熱材を提供する。【解決手段】真空断熱材１Ａは、芯材２をガスバリア性を有する外包材３で包み、外包材３の内部空間を減圧して封止し、芯材２の内部に芯材よりガス透過性の低いセパレータ５を設けてあり、該セパレータは金属材を除く無機材又は有機材で形成される。芯材２は、グラスウール等の繊維集合体で形成され、外包材は、樹脂フィルムをベースとして形成され、表面保護層、ガスバリア層、および熱溶着層を積層して構成され、外包材３の内部空間にガス吸着剤４を配置し、セパレータ５は芯材２の中間位置に配置される。【選択図】図１