CN110939977A - Heat storage device adopting concentric combination of phase-change material and water - Google Patents
Heat storage device adopting concentric combination of phase-change material and water Download PDFInfo
- Publication number
- CN110939977A CN110939977A CN201911232982.6A CN201911232982A CN110939977A CN 110939977 A CN110939977 A CN 110939977A CN 201911232982 A CN201911232982 A CN 201911232982A CN 110939977 A CN110939977 A CN 110939977A
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- China
- Prior art keywords
- metal cylinder
- heat exchange
- exchange tube
- outer shell
- heat storage
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D13/00—Electric heating systems
- F24D13/04—Electric heating systems using electric heating of heat-transfer fluid in separate units of the system
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D15/00—Other domestic- or space-heating systems
- F24D15/02—Other domestic- or space-heating systems consisting of self-contained heating units, e.g. storage heaters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1096—Arrangement or mounting of control or safety devices for electric heating systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/02—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat
- F28D20/021—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat the latent heat storage material and the heat-exchanging means being enclosed in one container
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2200/00—Heat sources or energy sources
- F24D2200/08—Electric heater
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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
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
Abstract
The invention discloses a heat storage device adopting a phase change material and water to be concentrically compounded, which comprises a cylindrical outer shell, wherein a hot water inlet pipe is arranged at the upper left part of the outer shell, a hot water return pipe is arranged at the lower left part of the outer shell, a cold water inlet pipe is arranged at the lower right part of the outer shell, and a hot water outlet pipe is arranged in the center of the top surface of the outer shell; a cylindrical metal cylinder is concentrically arranged in the center of the inner part of the outer shell, phase change heat storage materials are packaged in the metal cylinder, and the outer side wall of the metal cylinder is fixedly connected with the inner side wall of the outer shell through a metal fixing rod, so that the metal cylinder can be concentrically arranged in the center of the inner part of the outer shell; the space outside the metal cylinder is filled with water; the outer side of the metal cylinder is provided with a heat exchange tube in a surrounding way, a water inlet at the upper end of the heat exchange tube is communicated with a hot water inlet tube, and a water outlet at the lower end of the heat exchange tube is communicated with a hot water return tube; the heat storage device can store heat at a higher speed than the conventional heat storage device.
Description
Technical Field
The invention relates to a heat storage device, in particular to a heat storage device which adopts a phase-change material and water to be concentrically compounded; belongs to the technical field of heating equipment.
Background
Phase change heat storage heating is heat storage or release by utilizing the characteristic that a material can absorb or release a large amount of latent heat when the phase state is changed from solid to liquid or from liquid to gas, compared with the traditional temperature change heat storage process, the temperature of the material in the phase change process is almost kept unchanged, the heat in hot water can be stored in the phase change material by utilizing the medium-low temperature phase change material when the energy is sufficient in the heating engineering, the heat is supplied by utilizing the phase change heat release of the phase change material when the energy is in short supply, and the phase change heat storage heating is widely applied to valley electricity storage heating at present, namely the valley electricity is stored in the phase change material at night and is used in the heat storage heating process of heating in the daytime; the heat storage box is a core component in the phase-change heat storage heating system, however, the existing heat storage box generally has the problem of low heat storage speed, so that the heat storage device adopting the phase-change material and water to be concentrically compounded is designed.
Disclosure of Invention
The invention aims to provide a heat storage device which adopts a phase change material and water to be concentrically compounded and can store heat at a high speed.
The technical scheme adopted by the invention is as follows: a heat storage device adopting a phase change material and water to be concentrically compounded is characterized by comprising a cylindrical outer shell, wherein a hot water inlet pipe is arranged at the upper left part of the outer shell, a hot water return pipe is arranged at the lower left part of the outer shell, a cold water inlet pipe is arranged at the lower right part of the outer shell, and a hot water outlet pipe is arranged in the center of the top surface of the outer shell; a cylindrical metal cylinder is concentrically arranged in the center of the inner part of the outer shell, phase change heat storage materials are packaged in the metal cylinder, and the outer side wall of the metal cylinder is fixedly connected with the inner side wall of the outer shell through a metal fixing rod, so that the metal cylinder can be concentrically arranged in the center of the inner part of the outer shell; the space outside the metal cylinder is filled with water; the metal cylinder outside encircle the installation heat exchange tube, the water inlet and the hot water inlet pipe intercommunication of heat exchange tube upper end, the delivery port and the hot water wet return intercommunication of lower extreme.
Further, the heat exchange tube include around install the heat exchange tube one section that is spring form at the lateral wall outside the metal cylinder, coil and install the heat exchange tube two-stage section above the metal cylinder top, the heat exchange tube two-stage section is the three-dimensional spiral threadlike of space and coils to and coil and install the heat exchange tube three-stage section below the metal cylinder bottom, the heat exchange tube three-stage section is the three-dimensional spiral threadlike of space and coils equally.
Furthermore, the heat exchange tube second section on the top surface of the metal cylinder is fixedly connected with the top surface of the metal cylinder through a plurality of top support connecting rods, the top support connecting rods are vertically arranged, the upper end of each top support connecting rod is fixed with the heat exchange tube second section, and the lower end of each top support connecting rod is fixed on the top surface of the metal cylinder; three sections of the heat exchange tube on the bottom surface of the metal cylinder are fixedly connected with the bottom surface of the metal cylinder through a plurality of bottom support connecting rods, the bottom support connecting rods are vertically arranged, the lower ends of the bottom support connecting rods are fixed with the three sections of the heat exchange tube, and the upper ends of the bottom support connecting rods are fixed on the bottom surface of the metal cylinder; the metal fixing rods on the outer side wall of the metal cylinder are arranged along a spring-shaped route of one section of the heat exchange tube and supported below the one section of the heat exchange tube.
Furthermore, the metal fixing rod, the top supporting connecting rod and the bottom supporting connecting rod are solid rods made of any one of carbon steel, low alloy steel, stainless steel, copper-nickel alloy, aluminum alloy and titanium.
Further, the shell body adopt stainless steel material, the shell body is sandwich structure, the intermediate layer intussuseption is filled with insulation material.
Furthermore, the side wall of the metal cylinder is in a wave shape.
Furthermore, the metal fixing rod on the outer side wall of the metal cylinder penetrates through the side wall of the metal cylinder to extend into the metal cylinder, and the penetrating position is sealed.
Further, still including installing the electric heater unit of bottom in the shell body, electric heater unit includes electrical heating rod and control switch, electrical heating rod be plane spiral line form.
The invention has the beneficial effects that: the invention provides a heat storage device adopting a phase change material and water to be concentrically compounded, which can store heat at a higher speed compared with the conventional heat storage device.
Drawings
Fig. 1 is a schematic view of the internal structure of the present invention.
Fig. 2 is a schematic internal perspective view of the present invention.
Fig. 3 is a schematic structural diagram of a heat exchange tube with three sections.
Fig. 4 is a schematic structural diagram of the side wall of the outer shell being wave-shaped.
Fig. 5 is a schematic view of a metal fixing rod penetrating through a side wall of a metal cylinder and extending into the metal cylinder.
Fig. 6 is a schematic view of connection using a solar water heater as a heat source.
In the figure: the heat exchange tube comprises an outer shell 1, a hot water inlet tube 2, a hot water return tube 3, a cold water inlet tube 4, a hot water outlet tube 5, a metal cylinder 6, a metal fixing rod 7, a heat exchange tube 8, a heat exchange tube section 9, a heat exchange tube section 10, a heat exchange tube section 11, a top support connecting rod 12, a bottom support connecting rod 13, an interlayer 14 and an electric heating rod 15.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be further described in detail with reference to the accompanying drawings, which are only used for illustrating the technical solution of the present invention and are not limited.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention; furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated; thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature; in the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other; the specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
As shown in fig. 1, a heat storage device adopting a phase change material and water to be concentrically compounded comprises a cylindrical outer shell 1, wherein a hot water inlet pipe 2 is arranged at the left upper part of the outer shell 1, a hot water return pipe 3 is arranged at the left lower part of the outer shell, a cold water inlet pipe 4 is arranged at the right lower part of the outer shell, and a hot water outlet pipe 5 is arranged at the center of the top surface of the outer shell; a cylindrical metal cylinder 6 capable of conducting heat is concentrically arranged at the center inside the outer shell 1, a phase-change heat storage material is packaged in the metal cylinder 6, and the outer side wall of the metal cylinder 6 is fixedly connected with the inner side wall of the outer shell 1 through a metal fixing rod 7, so that the metal cylinder 6 can be concentrically arranged at the center inside the outer shell 1; the space outside the metal cylinder 6 is filled with water; the heat exchange tube 8 is arranged around the outer side of the metal cylinder 6, a water inlet at the upper end of the heat exchange tube 8 is communicated with the hot water inlet tube 2, and a water outlet at the lower end of the heat exchange tube 8 is communicated with the hot water return tube 3; the heat exchange tube 8 can be made of carbon steel, low alloy steel, stainless steel, copper-nickel alloy, aluminum alloy, titanium and the like; as shown in fig. 2 and 3, in order to further increase the heat storage speed of the metal tube 6, the heat exchange tube 8 comprises a first heat exchange tube section 9 which is arranged around the outer side wall of the metal tube 6 and is in a spring shape, a second heat exchange tube section 10 which is arranged above the top surface of the metal tube 6 in a coiling manner, a second heat exchange tube section 10 which is arranged below the bottom surface of the metal tube 6 in a coiling manner and is in a spatial three-dimensional spiral line shape, and a third heat exchange tube section 11 which is arranged below the bottom surface of; the heat exchange area is greatly increased by the arrangement mode, the top, the bottom and the side surfaces of the metal cylinder 6 are simultaneously heated, and the heat storage speed is greatly improved; in order to ensure that the heat exchange tube 8 is installed more stably, a heat exchange tube second section 10 on the top surface of the metal cylinder 6 is fixedly connected with the top surface of the metal cylinder 6 through a plurality of top support connecting rods 12, the top support connecting rods 12 are vertically installed, the upper end of each top support connecting rod is fixed with the heat exchange tube second section 10, and the lower end of each top support connecting rod is fixed on the top surface of the metal cylinder 6; the heat exchange tube three sections 11 on the bottom surface of the metal cylinder 6 are fixedly connected with the bottom surface of the metal cylinder 6 through a plurality of bottom support connecting rods 13, the bottom support connecting rods 13 are vertically arranged, the lower ends of the bottom support connecting rods are fixed with the heat exchange tube three sections 11, and the upper ends of the bottom support connecting rods are fixed on the bottom surface of the metal cylinder 6; the metal fixing rods 7 on the outer side wall of the metal cylinder 6 are arranged along a spring-shaped route of a section 9 of the heat exchange tube, are supported below the section 9 of the heat exchange tube and can also be welded and fixed; the metal fixing rod 7, the top support connecting rod 12 and the bottom support connecting rod 13 can be solid rods made of carbon steel, low alloy steel, stainless steel, copper-nickel alloy, aluminum alloy, titanium and the like, and are fixed by welding.
The phase-change heat storage material can adopt paraffin, fatty acid or crystal water and salt substances.
Further, the outer shell 1 may be made of stainless steel, and is of a sandwich structure, and the interlayer 14 is filled with a heat insulating material; less heat is lost.
Further, as shown in fig. 4, the side wall of the metal cylinder 6 is in a wave shape to increase the heat exchange area of the metal cylinder 6 and improve the heat storage and supply efficiency.
Further, as shown in fig. 5, the metal fixing rod 7 on the outer side wall of the metal cylinder 6 penetrates through the side wall of the metal cylinder 6 and extends into the metal cylinder, and the penetrating position is sealed, so that the connection stability can be improved, and heat can be directly transferred to the center of the metal cylinder 6 through the metal fixing rod 7, so that the phase change speed of the internal phase change heat storage material is improved, and the overall heat storage speed is further improved.
Above-mentioned heat-retaining device is still including installing the electric heater unit of bottom in the shell body, and electric heater unit includes electric heating rod 15 and control switch etc. electric heating rod 15 be plane spiral form, electric heating rod's heating area is bigger, can rapid heating, electric heater unit is arranged in storing the millet electricity night in phase change material, is used for the heating daytime.
The working process of the device is as follows: as shown in fig. 6, hot water supplied by a heat source enters from the hot water inlet pipe 2 and returns to the heat source from the hot water return pipe 3, when the hot water flows through the heat exchange pipe 8, the hot water in the heat exchange pipe 8 exchanges heat with the water in the outer shell 1, a part of heat is stored in the water in the outer shell, and a part of heat is stored in the metal cylinder 6; the heat storage process is completed through circulation; cold water enters from the cold water inlet pipe 4 and flows out from the hot water outlet pipe 5 to provide hot water for users, and the heat release process is completed; the heat source shown in fig. 5 is a solar water heater, but the heat source may be industrial waste heat or other heat source.
Although the present invention has been described in detail with reference to the foregoing examples, it will be apparent to one skilled in the art that various changes in the embodiments and/or modifications of the embodiments and/or portions thereof may be made, and all changes, equivalents, and modifications that fall within the spirit and scope of the invention are therefore intended to be embraced by the appended claims.
Claims (8)
1. A heat storage device adopting a phase change material and water to be concentrically compounded is characterized by comprising a cylindrical outer shell, wherein a hot water inlet pipe is arranged at the upper left part of the outer shell, a hot water return pipe is arranged at the lower left part of the outer shell, a cold water inlet pipe is arranged at the lower right part of the outer shell, and a hot water outlet pipe is arranged in the center of the top surface of the outer shell; a cylindrical metal cylinder is concentrically arranged in the center of the inner part of the outer shell, phase change heat storage materials are packaged in the metal cylinder, and the outer side wall of the metal cylinder is fixedly connected with the inner side wall of the outer shell through a metal fixing rod, so that the metal cylinder can be concentrically arranged in the center of the inner part of the outer shell; the space outside the metal cylinder is filled with water; the metal cylinder outside encircle the installation heat exchange tube, the water inlet and the hot water inlet pipe intercommunication of heat exchange tube upper end, the delivery port and the hot water wet return intercommunication of lower extreme.
2. The heat storage device adopting the concentric combination of the phase change material and the water as claimed in claim 1, wherein: the heat exchange tube comprises a first heat exchange tube section which is arranged on the outer side wall of the metal cylinder in a surrounding mode and is in a spring shape, a second heat exchange tube section which is arranged above the top face of the metal cylinder in a winding mode, and a third heat exchange tube section which is arranged below the bottom face of the metal cylinder in a winding mode, wherein the third heat exchange tube section is also in a space spiral winding mode.
3. The heat storage device adopting the concentric combination of the phase change material and the water as claimed in claim 2, wherein: the heat exchange tube second section on the top surface of the metal cylinder is fixedly connected with the top surface of the metal cylinder through a plurality of top support connecting rods, the top support connecting rods are vertically arranged, the upper end of each top support connecting rod is fixed with the heat exchange tube second section, and the lower end of each top support connecting rod is fixed on the top surface of the metal cylinder; three sections of the heat exchange tube on the bottom surface of the metal cylinder are fixedly connected with the bottom surface of the metal cylinder through a plurality of bottom support connecting rods, the bottom support connecting rods are vertically arranged, the lower ends of the bottom support connecting rods are fixed with the three sections of the heat exchange tube, and the upper ends of the bottom support connecting rods are fixed on the bottom surface of the metal cylinder; the metal fixing rods on the outer side wall of the metal cylinder are arranged along a spring-shaped route of one section of the heat exchange tube and supported below the one section of the heat exchange tube.
4. The heat storage device adopting the concentric combination of the phase change material and the water as claimed in claim 3, wherein: the metal fixing rod, the top supporting connecting rod and the bottom supporting connecting rod are solid rods made of any one of carbon steel, low alloy steel, stainless steel, copper-nickel alloy, aluminum alloy and titanium.
5. The heat storage device adopting the concentric combination of the phase change material and the water as claimed in any one of claims 1 to 4, wherein: the shell body adopt stainless steel material, the shell body is of a sandwich structure, and the interlayer is filled with heat insulation material.
6. The heat storage device adopting the concentric combination of the phase change material and the water as claimed in claim 5, wherein: the side wall of the metal cylinder is wave-shaped.
7. The heat storage device adopting the concentric combination of the phase change material and the water as claimed in claim 6, wherein: the metal fixing rod on the outer side wall of the metal cylinder penetrates through the side wall of the metal cylinder to extend into the metal cylinder, and the penetrating position is sealed.
8. The heat storage device adopting the concentric combination of the phase change material and the water as claimed in claim 7, wherein: still including installing the electric heater unit of bottom in the shell body, electric heater unit includes electric heating rod and control switch, electric heating rod be plane spiral line form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911232982.6A CN110939977A (en) | 2019-12-05 | 2019-12-05 | Heat storage device adopting concentric combination of phase-change material and water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911232982.6A CN110939977A (en) | 2019-12-05 | 2019-12-05 | Heat storage device adopting concentric combination of phase-change material and water |
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| Publication Number | Publication Date |
|---|---|
| CN110939977A true CN110939977A (en) | 2020-03-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911232982.6A Pending CN110939977A (en) | 2019-12-05 | 2019-12-05 | Heat storage device adopting concentric combination of phase-change material and water |
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| CN (1) | CN110939977A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111826130A (en) * | 2020-07-27 | 2020-10-27 | 安徽国微华芯环境科技有限公司 | Low-temperature phase-change cold-storage composite solvent, preparation method thereof and generating device |
| CN112815755A (en) * | 2020-12-30 | 2021-05-18 | 国网河北省电力有限公司电力科学研究院 | Energy storage device |
| CN112985147A (en) * | 2021-04-28 | 2021-06-18 | 全球能源互联网欧洲研究院 | Metal phase transformation heat storage device |
-
2019
- 2019-12-05 CN CN201911232982.6A patent/CN110939977A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111826130A (en) * | 2020-07-27 | 2020-10-27 | 安徽国微华芯环境科技有限公司 | Low-temperature phase-change cold-storage composite solvent, preparation method thereof and generating device |
| CN112815755A (en) * | 2020-12-30 | 2021-05-18 | 国网河北省电力有限公司电力科学研究院 | Energy storage device |
| CN112985147A (en) * | 2021-04-28 | 2021-06-18 | 全球能源互联网欧洲研究院 | Metal phase transformation heat storage device |
| CN112985147B (en) * | 2021-04-28 | 2022-12-06 | 全球能源互联网欧洲研究院 | Metal phase transformation heat storage device |
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