一种潜热储能球
By designing a spherical structure and composite phase change materials, the problems of insufficient heat exchange area and leakage and agglomeration of phase change materials in latent heat storage devices have been solved, realizing a latent heat storage sphere with high efficiency and flexible application.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 临沂市欧科节能技术有限公司
- Filing Date
- 2025-06-11
- Publication Date
- 2026-07-17
AI Technical Summary
Existing latent heat storage devices suffer from problems such as limited heat exchange area, easy leakage and agglomeration of phase change materials, and unsuitable structure for large-scale application.
The device employs a spherical structure and composite phase change material. The phase change material is encapsulated in a copper or aluminum alloy hemispherical shell with good thermal conductivity. Nano-graphite powder and expanded perlite are used to improve thermal conductivity and prevent leakage, combined with a modular design.
It achieves efficient heat exchange, good stability, is suitable for large-scale applications and flexible layout, and enhances the service life of phase change materials.
Smart Images
Figure CN224517517U_ABST
Abstract
Claims
1. A latent heat energy storage ball, characterized in that, The system includes a phase change compensation system consisting of an outer retaining ring (1), an outer retaining ring groove (2), a piston (3), an inner retaining ring (5), an inner retaining ring groove (6), and a cylinder (9), and a latent heat storage sphere consisting of two hemispherical shells (10) and a phase change material (4). The material of the hemispherical shell (10) is copper or aluminum alloy with good thermal conductivity. The hemispherical shells (10) are welded together in pairs to form a spherical structure. The outer retaining ring (1) and the inner retaining ring (5) are installed inside the cylinder (9) of the hemispherical shell (10). The piston (3) is provided with a piston sealing groove (7). The piston sealing ring (8) is installed in the piston sealing groove (7). The piston (3) is installed between the outer retaining ring (1) and the inner retaining ring (5) inside the cylinder (9). The phase change material (4) is encapsulated between the two hemispherical shells (10).
2. The latent energy storage sphere of claim 1, wherein, The volume of the two cylinders (9) removing the piston (3) is 15%-20% of the volume of the phase change material (4).
3. The latent energy storage sphere of claim 1, wherein, The phase change material (4) is an organic-inorganic composite phase change material, with paraffin as the organic matrix and 10%-20% nano-graphite powder and 5%-10% expanded perlite added by mass. The paraffin provides the main latent heat of phase change, the nano-graphite powder can significantly improve the thermal conductivity of the phase change material, and the expanded perlite plays a supporting role and prevents leakage and agglomeration of the phase change material.
4. The latent energy storage sphere of claim 1, wherein, The inner wall of the hemispherical shell (10) is provided with reinforcing ribs.