Component for producing vacuum insulation systems
View Patent ↗The present invention relates to a component for producing vacuum insulation systems, comprising at least one insulation layer which is surrounded by a casing, wherein the gas pressure in the insulation layer can be reduced by means provided in the component, wherein the means for reducing the gas pressure is embodified as activatable. The present invention further describes a vacuum insulation system comprising a component according to the invention.
1. A component comprising at least one insulation layer which is surrounded by a casing, wherein the gas pressure in the insulation layer can be reduced by an activatable pressure-reducer provided in the component, and wherein the gas in the insulation layer comprises an addition-polymerizable gas, and the activatable pressure reducer comprises at least one addition polymerization catalyst/initiator whereby the addition-polymerizable gas can be addition polymerized.
2. The component according to claim 1 , wherein the activatable pressure reducer adsorbs and/or reacts with the gas in the insulation layer, the gas in the insulation layer further comprises carbon dioxide, and the activatable pressure reducer comprises a basic substance capable of adsorbing and/or reacting with carbon dioxide.
3. The component according to claim 1 , wherein the gas in the insulation layer further comprises carbon dioxide, and the gas in the insulation layer contains said carbon dioxide in an amount of less than 100% but at least 90% by volume of carbon dioxide.
4. The component according to claim 1 , wherein the gas pressure is at least 800 mbar before activation.
5. The component according to claim 1 , wherein the activatable pressure reducer comprises an active substance encapsulated by a casing substance.
6. The component according to claim 1 , wherein before activation the activatable pressure reducer displays a pressure reduction by at most 5% after an observation time of at least two hours under the gas provided for reaction.
7. The component according to claim 1 , wherein the quotient formed from the pressure reduction after activation and the pressure reduction before activation is at least 10, based on the gas in the insulation layer and an observation time of at least two hours.
8. The component according to claim 1 , wherein the activatable pressure reducer is provided in a cold region of the component.
9. The component according to claim 1 , wherein the component comprises two or more activatable pressure reducers which differ in their modes of activation.
10. The component according to claim 1 , wherein at least one drier is provided within the casing of the component.
11. The component according to claim 1 , wherein the activatable pressure reducer comprises an active substance on a carrier material.
12. A vacuum insulation system comprising a component according to claim 1 .
13. A process for forming a vacuum, comprising activating in a component according to claim 1 , the activatable pressure-reducer.
14. The component according to claim 1 , wherein the addition-polymerizable gas is ethylene.
15. The component according to claim 1 , wherein the addition-polymerizable gas is propylene.
16. The component according to claim 1 , wherein the addition-polymerizable gas is a mixture of ethylene and propylene.