摘要:
Ein Wärmeisolationselement (1) mit parallel zueinander liegenden Wandflächen (2) und dazwischen angeordneten Stützmitteln (12) ist im Randbereich mit Abschlußmitteln (3, 7) versehen, wobei der Raum zwischen den Wandflächen (2) weitgehend evakuiert ist. Um einen thermisch hochwertigen Abschluß im Randbereich zu erreichen, ist eine wenigstens gegenüber einem Rand (5) der Wandfläche (2) zurückgesetzte Membran (3) vorgesehen, die von einer Membranabdeckung (7) geschützt ist, wobei die Membran wie die Membranabdeckung aus schlecht wärmeleitendem Material bestehen.
摘要:
A boxlike body (10) with a rear wall (12) and four side walls (14) is brought into a fixture (34) with the free edges (22) of the side walls pointing downwards. The walls of the body is filled with insulating powder by blowing the powder into the rear wall (12) by gaseous medium of a first pressure. The powder is then packed by gaseous medium of a second pressure, which is higher than the first pressure, being let into the rear wall. During the filling and packing the medium is let out via a filter element (24) arranged at the free edges (22) around these. After the filling and packing the medium is evacuated from the walls through the filter element (24). The body can then be used as a so-called vacuum insulation in a refrigerator or freezer.
摘要:
Un panneau isolant (10) comprend un panneau de fibres minérales (12) d'une densité comprise entre 8 et 28 livres par pied carré (0,128 et 0,449 gm/cm3), les fibres ne comportant pas de liant organique, et entre 5 et 40 % en poids d'un mßteriau particulaire (16) tassé dans les interstices du panneau, et une enveloppe étanche au gaz (14) englobant le panneau (12). On fait le vide dans cette enveloppe (14) jusqu'à un niveau de vide situé entre 10-4 Torr et 10 Torr.
摘要:
An evacuated insulation unit and a method of manufacturing the same. A zeolite adsorbent is degassed in a vacuum state. The degassed zeolite adsorbent is sealingly packed in a gas impermeable bag in an atmosphere of an adsorption-proof gas. Then, the gas impermeable bag is provided with a communication hole. After the communication hole is provided, the gas impermeable bag is placed into a plastic bag so as to communicate to the plastic bag through the communication hole. A heat insulating material and activated carbon are also placed into the plastic bag. The plastic bag which contains the gas impermeable bag, the heat insulating material and the activated carbon is evacuated immediately after the provision of the communication hole to the gas impermeable bag so that air is prevented from entering the gas impermeable bag. The plastic bag is sealed during evacuation thereof to thereby produce the evacuated insulation unit.
摘要:
An evacuated insulation unit and a method of manufacturing the same. A zeolite adsorbent is degassed in a vacuum stete. The degassed zeolite adsorbent is sealingly packed in a gas impermeable bag in an atmosphere of an adsorption- prod gas. Then, the gas impermeable bag is provided with a communication hole. After the communication hole is provided, the gas impermeable bag is placed into a plastic bag so as to communicate to the plastic bag through the communication hole. A heat insulating material and activated carbon are also placed into the plastic bag. The plastic bag which contains the gas impermeable bag, the heat insulating material and the activated carbon is evacuated immediately after the provision of the communication hole to the gas impermeable bag so that air is prevented from entering the gas impermeable bag. The plastic bag is sealed during evacuation thereof to thereby produce the evacuated insulation unit.
摘要:
The insulated unit (1) of the present invention comprises an inner liner (9), an outer liner (8), an insulation space (10) between the inner liner (9) and the outer liner (8), an insulating material (2) filling the inner space (10). The inner liner (9) and the outer liner (8) of the insulated unit (1) are formed by a composite sheet (11) including one or more plastic sheets (3) and one or more film materials (7) that is formed by metal and thin plastic layers.
摘要:
Zum Aufbau thermisch isolierender Gehäuse ist eine Wand als sandwichartige Umhüllung von Partikeln geringer Wärmeleitfähigkeit vorgesehen, wobei die Partikel aus einer Mischung von 65 Gewichts-% Partikeln einer mittleren Korngröße von 5 bis 9 nm aus pyrogen hergestellter Kieselsäure, 15 Gewichts-% Partikeln mittlerer Korngröße von 3,1 bis 3,9 µm aus gefällter Kieselsäure und 20 Gewichts-% aus Partikeln einer mittleren Korngröße im Bereich 0,12 bis 0,18 µm aus Microsilica bestehen; die der umgebenden Atmosphäre ausgesetzte Seite der Umhüllung besteht aus Stahl oder Edelstahlblech, während die der Atmosphäre abgewandte Seite aus Stahl, Aluminium oder Edelstahl besteht. Zur Verbesserung der thermischen Isolierung und Formstabilität des Gehäuses ist eine Luftabführung aus dem von der Umhüllung gebildeten Zwischenraum vorgesehen, wobei ggf. ein Isoliergas mit einem Druck im Bereich von 10 bis 10³ Pascal sich im Zwischenraum befindet.
摘要:
Precipitated silica is mixed with a fly ash material and is employed as an insulating material having a low thermal conductivity. The mixture of precipitated silica and fly ash material is dried, compressed, placed in an evacuable pouch, and evacuated. The resulting board-like insulation configuration is used directly as insulation. The board-like material which is produced may be used as insulation in household refrigerators and freezers by placing it in an insulation space between the inner liner and the outer case and encapsulating the board-like material with a foamed insulating material.
摘要:
A thermal insulation bag (1) for vacuum-pckaging micropowder material (12) comprises a multi-layer sheet having thermoweldable plastics layers (8, 10) and an intermediate metal layer (9). To prevent heat conduction through the metal layer from one side of the bag to the other side, the metal layer is of smaller dimensions than the other layers so that the sealed edges (3) do not comprise the metal layer edges. For positioning and fixing purposes the metal layer (9) only comprises small tabs 9A which are sealed between the plastics layers (8, 10).