US11060800B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11060800-B2 |
| Application number | US-201716326099-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 18, 2017 |
| Priority date | Aug 19, 2016 |
| Publication date | Jul 13, 2021 |
| Grant date | Jul 13, 2021 |
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A latent heat storage device includes: a heat transfer cylindrical body allowing a flow of a heat medium inside thereof and being rotatable about a longitudinal axis as a center of rotation; a fixed blade being adjacent to or in a slidable contact with an outer peripheral surface of the heat transfer cylindrical body; and a latent heat storage material disposed around the heat transfer cylindrical body, wherein by rotation of the heat transfer cylindrical body, the fixed blade scrapes a solidified body of the latent heat storage material adhering to the outer peripheral surface of the heat transfer cylindrical body off the outer peripheral surface of the heat transfer cylindrical body, and creates circulation of the latent heat storage material.
Opening claim text (preview).
The invention claimed is: 1. A latent heat storage device comprising: a heat transfer cylindrical body allowing a flow of a heat medium inside thereof and being rotatable about a longitudinal axis as a center of rotation; a fixed blade being adjacent to or in a slidable contact with an outer peripheral surface of the heat transfer cylindrical body; and a latent heat storage material disposed around the heat transfer cylindrical body, wherein at a time of heat release, by rotation of the heat transfer cylindrical body, the fixed blade scrapes a solidified body of the latent heat storage material adhering to the outer peripheral surface of the heat transfer cylindrical body off the outer peripheral surface of the heat transfer cylindrical body, and by rotation of the heat transfer cylindrical body and by the fixed blade, circulation of the latent heat storage material is created to agitate the latent heat storage material; at a time of heat storage, the latent heat storage material transformed from the solidified body into a liquid form in a vicinity of the outer peripheral surface of the heat transfer cylindrical body circulates by using the rotation of the heat transfer cylindrical body as a driving force, and the circulation of the latent heat storage material collides with the fixed blade to create a flow in a direction perpendicular to the outer peripheral surface of the heat transfer cylindrical body; and a filler in liquid form and immiscible with the latent heat storage material is disposed between the outer peripheral surface of the heat transfer cylindrical body and the latent heat storage material. 2. The latent heat storage device according to claim 1 , wherein a width of the fixed blade is equal to or above 15% of a diameter of the heat transfer cylindrical body. 3. The latent heat storage device according to claim 1 , wherein an outer cylinder is disposed around the heat transfer cylindrical body while providing a given space in between, and the fixed blade and the latent heat storage material are disposed in the space between the heat transfer cylindrical body and the outer cylinder. 4. The latent heat storage device according to claim 3 , wherein a width of the fixed blade is not less than 30% and not more than 100% of a width of the space between the heat transfer cylindrical body and the outer cylinder. 5. The latent heat storage device according to claim 1 , wherein one end portion of the heat transfer cylindrical body is closed, and a heat medium introduction pipe configured to introduce the heat medium from another end portion of the heat transfer cylindrical body into the vicinity of the closed end portion in the heat transfer cylindrical body is disposed in the heat transfer cylindrical body, and the heat medium flows from the vicinity of the closed end portion to the other end portion in the heat transfer cylindrical body by introducing the heat medium into the heat transfer cylindrical body through the heat medium introduction pipe.
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