Phase change heat storage device

• US 10,591,225 B2
• Filed: 01/12/2018
• Issued: 03/17/2020
• 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
• Primary Examiner(s): Duong, Tho V
• Application Number:
  US15/870,305
• Publication Number:
  US 20180135919A1
• Time in Patent Office: 795 Days
• Field of Search: 165 10, 16510417
• 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 internally provided with a lining;

an insulating layer disposed between the lining and the housing, the lining being internally filled in with a phase change material; and

a coiled pipe embedded in the phase change material;

wherein an inlet and an 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,

wherein the lining is internally provided with at least one partition board;

the at least one 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 at least one partition board,

wherein the at least one partition board is formed with a through-hole which the coiled pipe runs through, and the at least one partition board is held at a middle portion of the coiled pipe,

wherein the coiled pipe extends vertically across the inner space of the lining from a bottom of the lining to a top of the lining,

wherein the inlet and the outlet of the coiled pipe, the main water inflow pipe, and the main water outflow pipe are disposed at a top of the novel phase change heat storage device, the main water inflow pipe and the main water outflow pipe have openings facing a vertical direction, and

wherein the inlet of the coiled pipe is welded on a portion of the main water inflow pipe that extends horizontally, and the outlet of the coiled pipe is welded on a portion of the main water outflow pipe that extends horizontally.

2. The novel phase change heat storage device according to claim 1, wherein the lining is formed with a vent hole, which communicates with the external air, at the top end.

3. The novel phase change heat storage device according to claim 1, wherein a temperature detecting blind pipe for measuring the temperature of the phase change material is embedded in the phase change material.

4. The novel phase change heat storage device according to claim 1, wherein the coiled pipe is a copper pipe.

5. The novel phase change heat storage device according to claim 1, wherein the insulating layer 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.

6. The novel phase change heat storage device according to claim 1, wherein a base is disposed below the housing.