NOVEL PHASE CHANGE HEAT STORAGE DEVICE

• US 20180135919A1
• Filed: 01/12/2018
• Published: 05/17/2018
• Est. Priority Date: 07/31/2015
• Status: Active Grant

• Current Assignee: Pioneer Energy (Jiangsu) Co., Ltd.
• Original Assignee: Pioneer Energy (Jiangsu) Co., Ltd.
• Inventors: SUN, Li, WANG, Hong, LIU, Xiaolong, WANG, Changjun
• Granted Patent: US 10,591,225 B2
• Time in Patent Office: Days
• CPC Class Codes: F28D 20/021 the latent heat storage material and the heat-exchanging means being enclosed in one container F28D20/023 - F28D20/028 take precedence
• CPC Class Codes: F28D 20/028 Control arrangements therefor
• CPC Class Codes: F28D 2020/0086 Partitions
• CPC Class Codes: F28F 13/125 by stirring
• CPC Class Codes: F28F 2270/00 Thermal insulation; Thermal decoupling
• CPC Class Codes: Y02E 60/14 Thermal energy storage

Abstract

The utility model discloses a novel phase change heat storage device, comprising a housing, wherein the housing is internally provided with a lining; an insulating layer is disposed between the lining and the housing; the lining is internally filled in with a phase change material; a coiled pipe is embedded in the phase change material; the inlet and outlet of the coiled pipe both extend out of the lining and are respectively welded with and communicate with a main water inflow pipe and a main water outflow pipe, so all welds between the coiled pipe and the main water inflow pipe and main water outflow pipe are positioned outside the lining and are not soaked by the phase change material. The lining is provided with at least one partition board; the partition board divides the inner space of the lining into independent spaces such that the phase change material is respectively positioned in the independent spaces divided by the partition board. Compared with the prior art, the utility model has a simple and novel structure design, solves the defects of existing phase change heat storage devices, greatly improves the heat exchange effect of the phase change heat storage device, reduces the production cost of the device, and prolongs the service life of the device.

Claims

1. A novel phase change heat storage device, comprising a housing (1), wherein the housing (1) is internally provided with a lining (3), an insulating layer (2) is disposed between the lining (3) and the housing (1);

the lining (3) is internally filled in with a phase change material (4);

a coiled pipe (5) is embedded in the phase change material (4);

characterized in that the inlet and outlet of the coiled pipe (5) both extend out of the lining (3) and are respectively welded with and communicate with a main water inflow pipe (10) and a main water outflow pipe (11).

2. The novel phase change heat storage device according to claim 1, characterized in that the lining is internally provided with at least one partition board (7);

the partition board (7) divides the inner space of the lining (3) into independent spaces such that the phase change material (4) is respectively positioned in the independent spaces divided by the partition board (7).

3. The novel phase change heat storage device according to claim 2, characterized in that the partition board (7) is formed with a through-hole which the coiled pipe (5) runs through, and the partition board (7) is held at the middle portion of the coiled pipe (5).

4. The novel phase change heat storage device according to claim 1, characterized in that a pneumatic stirring mechanism which pneumatically stirs the phase change material (4) is also provided.

5. The novel phase change heat storage device according to claim 1, characterized in that the lining (3) is formed with a vent hole (9), which communicates with the external air, at the top end.

6. The novel phase change heat storage device according to claim 1, characterized in that a temperature detecting blind pipe (6) for measuring the temperature of the phase change material is embedded in the phase change material (4), and disposed on a line which connects the central hole of the device and a corner edge.

7. The novel phase change heat storage device according to claim 1, characterized in that the coiled pipe (5) is a copper pipe.

8. The novel phase change heat storage device according to claim 1, characterized in that the insulating layer (2) is any one or any combination of several ones of a foamed polyurethane layer, an aerogel insulating layer, an inorganic nano insulating layer and a VIP vacuum insulating board.

9. The novel phase change heat storage device according to claim 1, characterized in that a base (8) is disposed below the housing (1).