CN112696962A - Heat pipe type phase-change heat storage heat reservoir - Google Patents
Heat pipe type phase-change heat storage heat reservoir Download PDFInfo
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- CN112696962A CN112696962A CN202011616940.5A CN202011616940A CN112696962A CN 112696962 A CN112696962 A CN 112696962A CN 202011616940 A CN202011616940 A CN 202011616940A CN 112696962 A CN112696962 A CN 112696962A
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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 relates to a heat pipe type phase change heat storage reservoir, which comprises: the heat storage, the inner container, the heating pipe, the fixing frame and the heat pipe; the inner container is arranged in the heat reservoir; two ends of the fixing frame are fixedly connected with the upper end of the heat reservoir; the heat pipe is fixed in the inner container through the fixing frame; the inner container is filled with a phase change material; the lower end of the heat reservoir is provided with a heating chamber; the heating section of the heating pipe is fixed in the heating chamber; the lower end of the heat pipe is connected with the heating chamber. The invention exchanges heat with normal temperature water through the heating pipe, the normal temperature water transfers the temperature to the heat pipe, and the heat pipe transfers the temperature to the phase change material in the liner, thereby achieving the purpose of heat storage, improving the heat storage efficiency of the heat reservoir, having small occupied area and strong practicability.
Description
Technical Field
The invention relates to the field of heat storage of heat reservoir systems, in particular to a heat pipe type phase change heat storage heat reservoir.
Background
Current heat storehouse is when carrying out the energy storage, thereby generally insert phase change material through heat transfer pipeline and heat in and reach the heat-retaining effect, and this kind of mode is the next door heat transfer, and the heat transfer effect of this kind of mode is not high, and spare part area is big moreover, and is not very convenient, and efficiency is lower, and the practicality is not strong, and damages the heat transfer pipeline easily. The structure and the heat absorption and release modes of various existing phase change heat storage devices at home and abroad are basically the same, and no matter the phase change heat storage devices are shell-and-tube type, spiral plate type and other types, the phase change heat storage heat exchangers are mainly characterized in that phase change heat storage materials are placed in a closed space, then a flowing pipeline of a heat exchange medium penetrates through the heat storage materials, the heat absorption and release are realized through the heat exchange between the heat storage materials and the heat exchange medium in the flowing pipeline, the heat transfer mode of the heat exchangers is dividing wall heat exchange, namely the heat exchange is carried out through a dividing wall between the phase change heat storage materials and the heat exchange medium, and the dividing wall heat exchange performance is related to the heat conductivity coefficient of. The heat transfer mode of the heat storage material in the heat absorption process is mainly natural convection, and the isothermal line is obviously inclined towards the top of the heat storage material due to unbalanced temperature; the heat storage material mainly conducts heat in an exothermic process. Therefore, the heat conductivity of the heat storage material has a decisive influence on the performance of the heat storage equipment, and the existing heat storage equipment can not overcome the basic defect of large heat conduction resistance of the heat storage material because the existing various practical heat storage materials are almost low in heat conductivity.
In addition, the structural design of the inner container and the coil assembly of the existing shell-and-tube phase-change heat storage heat exchanger is unreasonable, so that the heat exchange of the internal heat exchange element is uneven, the phase-change material is not fully utilized, the heat exchange efficiency of the existing heat exchanger is low, and the production cost of the product is indirectly increased. And the partition plates are arranged in the inner container to divide the phase change material into a plurality of parts, so that the heat exchange effect of the phase change heat storage device is improved.
The heat pipe technology skillfully combines two phase change heat exchange processes of boiling and condensation with extremely small thermal resistance and a heat conduction process of a thin-wall metal pipe, and has the characteristics of small equivalent thermal resistance and good isothermal property. The application of the heat pipe technology to the field of phase change heat storage is an important way for improving a phase change heat storage system and improving the heat exchange efficiency of the phase change heat storage system.
Therefore, a heat pipe type phase-change heat storage reservoir with high heat exchange efficiency and long service life is needed.
Disclosure of Invention
The invention aims to provide a heat pipe type phase change heat storage heat reservoir with high heat exchange efficiency and long service life.
In order to ensure that the heat exchange effect is stable and the working efficiency is high in the using process, the invention relates to a heat pipe type phase change heat storage heat reservoir, which comprises:
the heat storage, the inner container, the heating pipe, the fixing frame and the heat pipe;
the inner container is arranged in the heat reservoir; two ends of the fixing frame are fixedly connected with the upper end of the heat reservoir; the heat pipe is fixed in the inner container through the fixing frame; the inner container is filled with a phase change material; the lower end of the heat reservoir is provided with a heating chamber; the heating section of the heating pipe is fixed in the heating chamber; the lower end of the heat pipe is connected with the heating chamber.
The heat storage device has the advantages that the heat exchange is carried out between the heating pipe and the normal-temperature water, the normal-temperature water transfers the temperature to the heat pipe, and the heat pipe transfers the temperature to the phase-change material in the liner, so that the purpose of heat storage is achieved, the heat storage efficiency of the heat reservoir is improved, the occupied area is small, and the practicability is high.
Further, normal-temperature water is arranged in the heating chamber; a heat exchange medium is arranged in the heating pipe; the temperature of the normal temperature water is lower than that of the heat exchange medium in the heating pipe. The heat exchange medium can be set to hot water, and through being provided with the temperature difference, guarantee that the hot water in the heating tube can give normal temperature water with heat transfer, give the normal temperature water heating indirectly to make it can heat for the heating tube.
Further, the heating pipes are arranged on the fixing frame in an array. Through the design of array arrangement, the heating effect on the phase-change material is ensured.
Further, the lower end of the heat pipe is arranged at the upper end of the heating pipe. By keeping the distance of one end, the stability in the heat transfer process is ensured, and the situation that the heating pipe directly touches the heat pipe due to the too close distance is avoided.
Furthermore, a heat insulation layer is arranged between the inner container and the heat reservoir. Through the design of the heat preservation layer, the energy storage effect of the heat reservoir is better.
Furthermore, the left end of the heating chamber is provided with a water inlet hole and a water outlet hole. Through the design of business turn over water hole, convenience simple more when overhauing the heating pipe avoids rivers splash when extracting the heating pipe.
Furthermore, a radiating pipe is arranged at the upper end of the heat reservoir; the radiating pipe is arranged at the upper end of the heat pipe. Through the design of the radiating pipe, cold water can not be introduced into the radiating pipe when the radiating pipe does not work, and cold water and the temperature in the heat reservoir are introduced to carry out cold and heat exchange when the radiating pipe works, so that the radiating purpose is achieved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a structural diagram of a heat pipe type phase change heat storage according to the present invention.
The corresponding part names indicated by the numbers in the figures:
1. a thermal reservoir; 2. an inner container; 3. heating a tube; 4. a fixed mount; 5. a heat pipe; 6. a phase change material; 7. a heating chamber; 8. the lower end of the heat pipe; 9. normal temperature water; 10. a heat exchange medium; 11. the upper end of the heating pipe; 12. a heat-insulating layer; 13. a water inlet hole; 14. a water outlet hole; 15. a heat radiation pipe.
Detailed Description
The present invention will be further described in detail with reference to the following specific examples:
the invention aims to provide a heat pipe type phase change heat storage heat reservoir with high heat exchange efficiency and long service life.
As shown in fig. 1, in order to ensure stable heat exchange effect and high working efficiency during use, the invention relates to a heat pipe type phase-change heat storage reservoir, which comprises:
the heat storage device comprises a heat storage 1, an inner container 2, a heating pipe 3, a fixing frame 4 and a heat pipe 5;
the inner container 2 is arranged in the heat reservoir 1; two ends of the fixing frame 4 are fixedly connected with the upper end of the heat reservoir 1; the heat pipe 5 is fixed in the inner container 2 through the fixing frame 4; the phase change material 6 is contained in the inner container 2; the lower end of the heat reservoir 1 is provided with a heating chamber 7; the heating section of the heating pipe 3 is fixed in the heating chamber 7; the lower end of the heat pipe 5 is connected with the heating chamber 7.
The heat storage device has the advantages that the heating pipe 3 and the normal-temperature water 9 are used for carrying out cold and heat exchange, the normal-temperature water 9 transfers the temperature to the heat pipe 5, and the heat pipe 5 transfers the temperature to the phase-change material 6 in the inner container 2, so that the purpose of heat storage is achieved, the heat storage efficiency of the heat reservoir 1 is improved, the occupied area is small, and the practicability is high.
Further, normal-temperature water 9 is arranged in the heating chamber 7; a heat exchange medium 10 is arranged in the heating pipe 3; the temperature of the normal temperature water 9 is lower than that of the heat exchange medium 10 in the heating pipe 3. The heat exchange medium 10 can be set as hot water, and the hot water in the heating pipe 3 can transfer heat to the normal-temperature water 9 by setting temperature difference, so that the normal-temperature water 9 is indirectly heated, and the heat pipe 5 can be heated.
Further, the heating pipes 3 are arranged in an array on the fixing frame 4. Through the design of array arrangement, the heating effect on the phase-change material is ensured.
Further, the lower end 8 of the heat pipe is arranged at the upper end 11 of the heating pipe. By keeping the distance of one end, the stability in the heat transfer process is ensured, and the situation that the heating pipe 3 directly touches the heat pipe 5 due to the too close distance is avoided.
Further, a heat insulation layer 12 is arranged between the inner container 2 and the heat reservoir 1. Through the design of the insulating layer 12, the energy storage effect of the heat reservoir 1 is better.
Furthermore, the left end of the heating chamber 7 is provided with a water inlet hole 13 and a water outlet hole 14. Through the design of business turn over water hole, more simple and convenient when overhauing heating pipe 3 avoids rivers splash when extracting heating pipe 3.
Further, a radiating pipe 15 is arranged at the upper end of the heat reservoir 1; the radiating pipe 15 is disposed at the upper end of the heat pipe 5. Through the design of the radiating pipe 15, the radiating pipe 15 can not lead in cold water when not working, and lead in cold water and carry out cold and hot exchange with the temperature in the heat reservoir 1 when working, thereby achieving the radiating purpose.
In practical operation, the temperature of the normal temperature water 9 is kept at 20-25 ℃, the temperature of the heat exchange medium 10 is kept at 85-90 ℃, the heat pipe 5 is filled with a low boiling point medium, the heating pipe 3 can be directly replaced by a heating device such as an electric heating rod, the normal temperature water 9 is heated by the heat exchange medium 10 in the heating pipe 3 to achieve heat exchange, when the temperature of the normal temperature water 9 rises, the low boiling point medium in the heat pipe 5 is heated and vaporized, the temperature rises in the heat pipe 5 from the bottom, when the temperature rises to the area of the phase change material 6, the temperature of the phase change material 6 is lower than the temperature in the heat pipe 5, the vaporized low boiling point medium releases heat to the area of the phase change material, the vaporized low boiling point medium is liquefied and drips to the bottom of the heat pipe 5 again, and the operation is repeated until the heat. When heat is required to be released, cold water is input through the radiating pipe 15 to absorb heat, and the principle is the same as that of heat storage. The heat pipe and the radiating pipe are made of heat superconducting materials, and the heat transfer effect is good. The heating chamber 7 and the phase-change material chamber are internally provided with double-layer clapboards, so that the heat transfer effect is more stable, and the stability and the reliability are higher.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. A heat pipe type phase-change heat storage heat reservoir is characterized by comprising a heat reservoir, an inner container, a heating pipe, a fixing frame and a heat pipe;
the inner container is arranged in the heat reservoir; two ends of the fixing frame are fixedly connected with the upper end of the heat reservoir; the heat pipe is fixed in the inner container through the fixing frame; the inner container is filled with a phase change material; the lower end of the heat reservoir is provided with a heating chamber; the heating section of the heating pipe is fixed in the heating chamber; the lower end of the heat pipe is connected with the heating chamber.
2. The heat pipe type phase change thermal storage according to claim 1, wherein: normal-temperature water is arranged in the heating chamber; a heat exchange medium is arranged in the heating pipe; the temperature of the normal temperature water is lower than that of the heat exchange medium in the heating pipe.
3. The heat pipe type phase change thermal storage according to claim 1, wherein: the heating pipes are arranged on the fixing frame in an array.
4. The heat pipe type phase change thermal storage according to claim 1, wherein: the lower end of the heat pipe is arranged at the upper end of the heating pipe.
5. The heat pipe type phase change thermal storage according to claim 1, wherein: and a heat insulation layer is arranged between the inner container and the heat reservoir.
6. The heat pipe type phase change thermal storage according to claim 1, wherein: the left end of the heating chamber is provided with a water inlet hole and a water outlet hole.
7. The heat pipe type phase change thermal storage according to claim 1, wherein: the upper end of the heat reservoir is provided with a radiating pipe; the radiating pipe is arranged at the upper end of the heat pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011616940.5A CN112696962A (en) | 2020-12-31 | 2020-12-31 | Heat pipe type phase-change heat storage heat reservoir |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011616940.5A CN112696962A (en) | 2020-12-31 | 2020-12-31 | Heat pipe type phase-change heat storage heat reservoir |
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| Publication Number | Publication Date |
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| CN112696962A true CN112696962A (en) | 2021-04-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011616940.5A Pending CN112696962A (en) | 2020-12-31 | 2020-12-31 | Heat pipe type phase-change heat storage heat reservoir |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113483590A (en) * | 2021-08-10 | 2021-10-08 | 江苏启能新能源材料有限公司 | Stainless steel heat reservoir heat exchange coil |
-
2020
- 2020-12-31 CN CN202011616940.5A patent/CN112696962A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113483590A (en) * | 2021-08-10 | 2021-10-08 | 江苏启能新能源材料有限公司 | Stainless steel heat reservoir heat exchange coil |
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