CN215864104U - Phase-change heat storage rod for solar heat collection pipe - Google Patents
Phase-change heat storage rod for solar heat collection pipe Download PDFInfo
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- CN215864104U CN215864104U CN202121522193.9U CN202121522193U CN215864104U CN 215864104 U CN215864104 U CN 215864104U CN 202121522193 U CN202121522193 U CN 202121522193U CN 215864104 U CN215864104 U CN 215864104U
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- heat
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- storage rod
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
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Abstract
The utility model discloses a phase change heat storage rod for a solar heat collecting pipe, which comprises a shell, heat conducting fins and phase change materials, wherein the heat conducting fins are tightly connected in the shell, the phase change materials are filled in a cavity formed by the shell and the heat conducting fins, and grooves are formed in two sides of the shell. When the pressure-bearing solar heat collector is used, the U-shaped pipe of the pressure-bearing solar energy is clamped into the groove, and then the solar heat collector is assembled in a conventional mode. When the heat collector operates, redundant heat in the U-shaped pipe can be stored in the phase-change heat storage rod, so that the temperature peak value in the heat collecting pipe is reduced, and the photo-thermal conversion efficiency is improved; the heat stored by the heat storage rod releases heat when the sunshine is unstable, so that the heat supply stability and continuity of the solar heat collection system can be improved.
Description
Technical Field
The utility model relates to a heat storage assembly, in particular to a solar heat storage assembly.
Background
The U-shaped pipe solar heat collector has the advantages of bearing capacity, good anti-freezing effect, long service life and the like, and is widely applied to pressure-bearing solar water heating engineering. However, in practical application, because the solar radiation intensity has fluctuation, the heat collecting pipe still faces the problem of excessive or insufficient heat. When the heat is excessive, the temperature in the solar heat collecting pipe is too high, the heat conversion efficiency is reduced, and the heat loss is increased; when the heat is insufficient, the heat supplied for the conversion of the circulating medium is reduced, and the heat supply stability of the system is reduced. The phase-change material has the defects of non-uniform temperature and unstable heat transfer in practical application because of low heat conductivity coefficient.
Disclosure of Invention
The utility model aims to solve the problems and designs the phase-change heat storage rod, so that the heat collection system can send heat to the heat using terminal medium and simultaneously store redundant heat in the phase-change heat storage rod, the temperature in the heat collection pipe is reduced, and the conversion efficiency is improved; when the sunshine is unstable, the phase change heat storage rod transmits the stored heat to the heat utilization terminal, and the effects of improving the heat supply stability of the solar heat collection system and prolonging the heat supply time are achieved.
The phase change heat storage rod for the solar heat collection tube comprises a shell, heat conduction fins and a phase change material, wherein the heat conduction fins are tightly connected in the shell, the phase change material is filled in a cavity formed by the shell and the heat conduction fins, and grooves are formed in two sides of the shell.
Further, the circular arc angle of the circular groove is between 135 and 225.
Further, the wall thickness of the shell is 0.2mm-2 mm.
Furthermore, the end of the shell is provided with a sealing end cover, and the material of the sealing end cover is one of metal and high polymer material.
Furthermore, the connection mode of the sealing end cover and the shell is one of welding, expansion joint, gluing and integrated forming.
Compared with the conventional technology, the utility model has the following beneficial effects.
1) The phase-change heat storage rod is internally provided with the heat exchange fins, so that the defect of low heat conductivity coefficient of the phase-change material can be overcome, the heat transfer time is shortened, and the heat transfer efficiency is improved.
2) Due to the characteristic that the phase-change material absorbs and releases heat to be approximately constant in temperature, the phase-change heat storage rod can be applied to the solar heat collection pipe to reduce the temperature peak value in the solar heat collection pipe and improve the photo-thermal conversion efficiency of the solar heat collection pipe.
3) When the sunshine condition is poor, the phase change heat storage rod can release the stored heat, so that the effects of improving the stability of the solar heat collection system and prolonging the heat release time are achieved.
Drawings
FIG. 1 is a schematic structural diagram of a phase-change heat storage rod according to the present invention;
FIG. 2 is a top view of the phase change heat storage rod of the present invention;
FIG. 3 is a left side view of the phase-change heat storage rod of the present invention;
in the figure: 1. shell, 2, heat conduction fin, 3, phase change material, 4, groove, 5, sealing end cover
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1: as shown in fig. 1 to 3, a phase-change heat storage rod for a solar heat collection tube comprises a housing 1, a heat conduction fin 2, a phase-change material 3 and a sealing end cover 5; the outer side of the shell is provided with a groove 4, the section of the groove 4 is arc-shaped, and the arc angle is 140 degrees; the shell 1 and the heat-conducting fins 3 are integrally processed and formed by aluminum alloy, and the wall thickness of the shell is 1.8 mm; the sealing end cover 5 at the lower end of the shell 1 is made of aluminum alloy and is connected to the shell 1 in an expanding mode; the other end of the housing 1 is sealed with a sealing end cap 5 made of silicone.
Example 2: as shown in fig. 1 to 3, a phase-change heat storage rod for a solar heat collection tube comprises a housing 1, a heat conduction fin 2, a phase-change material 3 and a sealing end cover 5; the outer side of the shell is provided with a groove 4, the section of the groove 4 is arc-shaped, and the arc angle is 210 degrees; the shell 1 and the heat-conducting fins 3 are integrally processed and formed by aluminum alloy, and the wall thickness of the shell is 0.3 mm; both ends of the housing are sealed by using silica gel as the sealing end covers 5.
The using method comprises the following steps: and (3) clamping a U-shaped pipe of the pressure-bearing type solar heat collector into the groove 4 of the phase-change heat storage rod, then assembling the solar heat collector according to a conventional mode, and forming a solar heat collection system with a heat storage function together with other components such as a solar header and the like.
Claims (5)
1. The utility model provides a phase change heat accumulation stick for solar energy collection pipe, includes shell (1), heat conduction fin (2), phase change material (3), its characterized in that, heat conduction fin (2) zonulae occludens is in shell (1), phase change material (3) fill in the cavity that shell (1) and heat conduction fin (2) formed, the both sides of shell (1) have recess (4).
2. The phase-change heat storage rod for the solar heat collection pipe according to claim 1, wherein the cross section of the groove (4) is a circular arc, and the angle of the circular arc is between 135 degrees and 225 degrees.
3. The phase-change heat storage rod for the solar heat collection pipe according to claim 1, wherein the wall thickness of the shell (1) is 0.2mm to 2 mm.
4. The phase-change heat storage rod for the solar heat collection pipe according to claim 1, wherein a sealing end cap (5) is arranged at an end of the shell (1), and the sealing end cap (5) is made of one of metal and high polymer material.
5. The phase-change heat storage rod for the solar heat collection pipe according to claim 4, wherein the connection mode of the sealing end cover (5) and the shell (1) is one of welding, expansion joint, gluing and integral molding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121522193.9U CN215864104U (en) | 2021-07-07 | 2021-07-07 | Phase-change heat storage rod for solar heat collection pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121522193.9U CN215864104U (en) | 2021-07-07 | 2021-07-07 | Phase-change heat storage rod for solar heat collection pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215864104U true CN215864104U (en) | 2022-02-18 |
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ID=80332704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121522193.9U Active CN215864104U (en) | 2021-07-07 | 2021-07-07 | Phase-change heat storage rod for solar heat collection pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215864104U (en) |
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2021
- 2021-07-07 CN CN202121522193.9U patent/CN215864104U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230410 Address after: 313309 2nd Floor, Tianheng Industrial Park - College Student Entrepreneurship Park, Tianzihu Town, Anji County, Huzhou City, Zhejiang Province (self declared) Patentee after: Phase Change Energy Storage (Zhejiang) Technology Co.,Ltd. Address before: No. 218, Floor 2, Building 15, Community Supporting Commercial Building, Maker Town, Wenquan Town, Haidian District, Beijing, 100095 Patentee before: Phase change energy storage (Beijing) Technology Co.,Ltd. Patentee before: Zhejiang Jinyu New Energy Technology Co.,Ltd. |
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| TR01 | Transfer of patent right |