Device and method for storing heat

US10168105B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-10168105-B2
Application numberUS-201113100587-A
CountryUS
Kind codeB2
Filing dateMay 4, 2011
Priority dateMay 4, 2010
Publication dateJan 1, 2019
Grant dateJan 1, 2019

How to read this patent

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  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

    Who owns or filed the patent and who is credited as inventor.

  4. Key dates

    Filing, priority, publication, and grant dates set the timeline.

  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

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Abstract

Official abstract text for this publication.

The invention relates to a device for storing heat, comprising a heat storage medium which absorbs heat in order to store heat and releases heat in order to use the stored heat, and a container for holding the heat storage medium, the container being closed by a gastight cover, and the device comprising volume compensation means in order to compensate for a volume increase of the heat storage medium (3) due to a temperature rise and a volume decrease due to a temperature reduction. The invention furthermore relates to a method for storing heat, in which heat is transferred to a heat storage medium in order to store heat or heat is discharged from the heat storage medium to the heat carrier in order to use the heat, the heat storage medium being held in a container which is closed by a gastight cover, wherein a volume expansion of the heat storage medium (3) is compensated for by a volume increase of the container (1) or by heat storage medium (3) flowing out of the container (1) into a buffer container (21; 63, 65), and a volume decrease of the heat storage medium (3) is compensated for by a volume decrease of the container (1) or by heat storage medium (3) flowing out of the buffer container (21; 63, 65) into the container (1).

First claim

Opening claim text (preview).

We claim: 1. A device for storing heat, comprising a salt melt as heat storage medium which absorbs heat in order to store heat and releases heat in order to use the stored heat, and a container for holding the salt melt, the container being closed by a gastight cover, wherein the device comprises volume compensation means in order to compensate for a volume increase of the salt melt due to a temperature rise and a volume decrease due to a temperature reduction, wherein the volume compensation means comprise a buffer container, into which part of the salt melt can flow when there is a volume increase of the salt melt, the buffer container having an inlet for a gas supply line which supplies a gas that is inert with respect to the heat storage medium, and wherein the buffer container has a volume which is smaller than the volume of the container for holding the salt melt, and said volume of the buffer container corresponding to the thermal expansion of the salt melt to be buffered. 2. The device according to claim 1 , wherein the heat storage device is formed as a stratified storage tank. 3. The device according to claim 1 , wherein the heat storage medium contains sulfur.

Assignees

Inventors

Classifications

  • flexible · CPC title

  • using molten salts or liquid metals · CPC title

  • using liquid heat storage material · CPC title

  • with stratification of the heat storage material · CPC title

  • Distributing arrangements; Fluid deflecting means · CPC title

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Frequently asked questions

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What does patent US10168105B2 cover?
The invention relates to a device for storing heat, comprising a heat storage medium which absorbs heat in order to store heat and releases heat in order to use the stored heat, and a container for holding the heat storage medium, the container being closed by a gastight cover, and the device comprising volume compensation means in order to compensate for a volume increase of the heat storage m…
Who is the assignee on this patent?
Wortmann Juergen, Schaefer Claus, Lutz Michael, and 8 more
What technology area does this patent fall under?
Primary CPC classification F28D20/0034. Mapped technology areas include Mechanical Engineering.
When was this patent published?
Publication date Tue Jan 01 2019 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).