Phase change energy storage composite structure

Abstract

The utility model relates to a phase change energy storage composite structure which comprises a plurality of phase change energy storage units. According to the technical key points, the phase change energy storage unit comprises an outer cylinder, a concentric inner cylinder, a front reducing opening, a rear reducing opening, a front sealing film, a rear sealing film, a phase change energy storage material packaged in the concentric inner cylinder, a first inserting structure, a second inserting structure, a third inserting structure, a fourth inserting structure, a first sealing breaking element and a second sealing breaking element, wherein the front reducing opening and the rear reducing opening are formed in the two ends of the concentric inner cylinder; every two adjacent outer barrels are connected through a third inserting structure and a fourth inserting structure, every two adjacent concentric inner barrels are connected through a first inserting structure and a second inserting structure, the front second seal breaking element points to the rear front sealing film, and the rear first seal breaking element points to the front rear sealing film. According to the structure, the problem that the speed is low when a plurality of phase change energy storage structures are compositely assembled is solved, and the working efficiency is remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of phase change energy storage, in particular to a phase change energy storage composite structure. Background Art

[0002] Phase change energy storage technology is often used to improve energy efficiency. Phase change energy storage technology uses phase change energy storage materials to achieve phase change processes, which include the process of hydrated salts releasing crystal water during heating, and the process of inorganic salts combining with water to regenerate hydrated salts during cooling. However, when applied to heating equipment, the mechanical properties of phase change energy storage materials need to be considered, and they need to have a certain strength of use. The existing phase change energy storage structure includes an outer shell and a phase change energy storage material disposed in the outer shell. Usually, according to the size of the application and other requirements, multiple phase change energy storage structures need to be combined into one to achieve the corresponding energy storage capacity. During the composite process of multiple phase change energy storage structures, it is necessary to ensure that the outer shells are docked while connecting the internal phase change energy storage materials to facilitate the later replenishment or replacement of the phase change energy storage materials. The assembly composite process is slow, which is not conducive to improving production efficiency. Utility Model Content

[0003] The purpose of the utility model is to provide a phase change energy storage composite structure with reasonable structure and reliable use, solve the problem of slow speed in composite assembly of multiple phase change energy storage structures, and significantly improve work efficiency.

[0004] The technical solution of the utility model is:

[0005] A phase change energy storage composite structure includes a plurality of phase change energy storage units, and its technical key points are: the phase change energy storage unit includes an outer cylinder, a concentric inner cylinder arranged in the outer cylinder, a front diameter reduction port and a rear diameter reduction port arranged at both ends of the concentric inner cylinder, a front sealing film arranged at the inner end of the front diameter reduction port, a rear sealing film arranged at the inner end of the rear diameter reduction port, a phase change energy storage material encapsulated in the concentric inner cylinder, a first plug-in structure arranged at the outer end of the front diameter reduction port, a second plug-in structure arranged at the outer end of the rear diameter reduction port, a third plug-in structure arranged at the front end of the outer cylinder, and a fourth plug-in structure arranged at the rear end of the outer cylinder. The invention relates to a phase change energy storage unit having a first sealing element and a second sealing element. The first sealing element is arranged on the inner side of the front reduced diameter opening, the second sealing element is arranged on the inner side of the rear reduced diameter opening, the outer cylinders of two adjacent phase change energy storage units are connected by a third plug-in structure and a fourth plug-in structure, the concentric inner cylinders of two adjacent phase change energy storage units are connected by a first plug-in structure and a second plug-in structure, the second sealing element of the phase change energy storage unit at the front points to the front sealing membrane of the phase change energy storage unit at the rear, and the first sealing element of the phase change energy storage unit at the rear points to the rear sealing membrane of the phase change energy storage unit at the front.

[0006] In the above-mentioned phase change energy storage composite structure, multiple groups of heat-conducting support plates are evenly arranged axially between the outer wall of the concentric inner cylinder and the inner wall of the outer cylinder, and each group of heat-conducting support plates is composed of multiple radial heat-conducting support plates evenly arranged around the center line of the concentric inner cylinder.

[0007] The above-mentioned phase change energy storage composite structure, the first plug-in structure includes a plurality of axial protrusions arranged on the outer circumferential surface of the front reducing port, and an expanding sleeve arranged concentrically with the front reducing port, a slot is formed between the top surface of the axial protrusion and the expanding sleeve, and a first sealing ring is provided on the bottom surface of the slot, the second plug-in structure includes a plurality of axial grooves arranged on the inner circumferential surface of the rear reducing port, the rear reducing port of the phase change energy storage unit at the front is inserted into the slot of the phase change energy storage unit at the rear, and the axial protrusion of the phase change energy storage unit at the rear is inserted into the axial groove of the phase change energy storage unit at the front.

[0008] In the above-mentioned phase change energy storage composite structure, the third plug-in structure is a reducing bayonet provided at the front end of the outer cylinder, a limiting convex ring provided on the outer circumferential surface of the reducing bayonet, a second sealing ring is provided on the bottom surface of the reducing bayonet, and the fourth plug-in structure is a limiting ring groove provided on the inner circumferential surface of the rear end of the outer cylinder, and the limiting ring groove of the outer cylinder of the phase change energy storage unit in the front position is buckled with the limiting convex ring of the outer cylinder of the phase change energy storage unit in the rear position.

[0009] The above-mentioned phase-change energy storage composite structure, the first breaking seal element includes a front positioning hollow sheet stuck in the front reduced diameter opening, and a first breaking seal nail arranged on the outer end surface of the front positioning hollow sheet, the second breaking seal element includes a rear positioning hollow sheet stuck in the rear reduced diameter opening, and a second breaking seal nail arranged on the outer end surface of the rear positioning hollow sheet, the end of the first breaking seal nail passes through and punctures the rear sealing film of the phase-change energy storage unit at the front position after the third plug-in structure is connected to the fourth plug-in structure, and the end of the second breaking seal nail passes through and punctures the front sealing film of the phase-change energy storage unit at the rear position after the third plug-in structure is connected to the fourth plug-in structure.

[0010] In the above-mentioned phase-change energy storage composite structure, the ends of the first seal-breaking nail and the second seal-breaking nail are provided with a plurality of spikes.

[0011] The beneficial effects of the utility model are:

[0012] When in use, the outer cylinders of two adjacent phase-change energy storage units are connected by the third plug-in structure and the fourth plug-in structure, and the concentric inner cylinders of two adjacent phase-change energy storage units are connected by the first plug-in structure and the second plug-in structure. The second seal-breaking element of the phase-change energy storage unit in the front position points to the front sealing film of the phase-change energy storage unit in the rear position and punctures the front sealing film, and the first seal-breaking element of the phase-change energy storage unit in the rear position points to the rear sealing film of the phase-change energy storage unit in the front position and punctures the rear sealing film. While realizing the composite of the front and rear phase-change energy storage units, the phase-change energy storage materials in the two concentric inner cylinders are communicated, which is conducive to the supplementation or replacement of the phase-change energy storage materials in the later stage. At the same time, the front sealing film and the buckle sealing film have the function of sealing the phase-change energy storage materials before the phase-change energy storage unit is used. When the two adjacent phase-change energy storage units are composited, it is only necessary to buckle the two phase-change energy storage units with force, which solves the problem of slow speed when multiple phase-change energy storage structures are composited and assembled, and significantly improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of a phase change energy storage unit of the utility model;

[0014] Figure 2 yes Figure 1 Cross-section at AA;

[0015] Figure 3 It is a structural schematic diagram of the utility model.

[0016] In the figure: 1. first rupture nail, 2. front reduction opening, 3. axial convex rail, 4. expansion sleeve, 5. reduction bayonet, 6. limiting convex ring, 7. second sealing ring, 8. outer cylinder, 9. concentric inner cylinder, 10. thermal conductive support plate, 11. limiting ring groove, 12. boss, 13. rear reduction opening, 14. second rupture nail, 15. axial groove, 16. first sealing ring, 17. positioning groove, 18. front positioning hollow plate, 19. front sealing film, 20. rear sealing film, 21. rear positioning hollow plate. DETAILED DESCRIPTION

[0017] The utility model is described in detail according to the accompanying drawings of the specification.

[0018] like Figure 1 to Figure 3 As shown, the phase change energy storage composite structure includes a plurality of phase change energy storage units. The number of phase change energy storage units can be selected according to usage requirements.

[0019] Among them, the phase change energy storage unit includes an outer cylinder 8, a concentric inner cylinder 9 arranged in the outer cylinder 8, a front reduction port 2 and a rear reduction port 13 arranged at both ends of the concentric inner cylinder 9, a front sealing film 19 arranged at the inner end of the front reduction port 2, a rear sealing film 20 arranged at the inner end of the rear reduction port 13, a phase change energy storage material encapsulated in the concentric inner cylinder 9, a first plug-in structure arranged at the outer end of the front reduction port 2, a second plug-in structure arranged at the outer end of the rear reduction port 13, a third plug-in structure arranged at the front end of the outer cylinder 8, a fourth plug-in structure arranged at the rear end of the outer cylinder 8, a first breaking seal element arranged on the inner side of the front reduction port 2, and a second breaking seal element arranged on the inner side of the rear reduction port 13.

[0020] The outer cylinders 8 of two adjacent phase-change energy storage units are connected by a third plug-in structure and a fourth plug-in structure. In this embodiment, the third plug-in structure is a reduced diameter bayonet 5 provided at the front end of the outer cylinder 8, and a limiting convex ring 6 provided on the outer circumference of the reduced diameter bayonet 5. The bottom surface of the reduced diameter bayonet 5 is provided with a second sealing ring 7. The fourth plug-in structure is a limiting ring groove 11 provided on the inner circumference of the rear end of the outer cylinder 8. The limiting ring groove 11 of the outer cylinder 8 of the phase-change energy storage unit in the front position is buckled with the limiting convex ring 6 of the outer cylinder 8 of the phase-change energy storage unit in the rear position.

[0021] The concentric inner cylinders 9 of two adjacent phase-change energy storage units are connected by a first plug-in structure and a second plug-in structure. In this embodiment, the first plug-in structure includes a plurality of axial convex rails 3 provided on the outer circumference of the front diameter reduction port 2, and an expansion sleeve 4 arranged concentrically with the front diameter reduction port 2, and a card slot is formed between the top surface of the axial convex rails 3 and the expansion sleeve 4. A first sealing ring 16 is provided on the bottom surface of the card slot. The second plug-in structure includes a plurality of axial grooves 15 provided on the inner circumference of the rear diameter reduction port 13, and the rear diameter reduction port 13 of the phase-change energy storage unit at the front position is inserted into the card slot of the phase-change energy storage unit at the rear position, and the axial convex rails 3 of the phase-change energy storage unit at the rear position are inserted into the axial grooves 15 of the phase-change energy storage unit at the front position. A boss 12 is provided on the outer circumference of the rear diameter reduction port 13, and a positioning groove 17 corresponding to the boss 12 is provided on the inner circumference of the expansion sleeve 4.

[0022] The second breaking seal element of the phase-change energy storage unit in the front position points to the front sealing film 19 of the phase-change energy storage unit in the rear position, and the first breaking seal element of the phase-change energy storage unit in the rear position points to the rear sealing film 20 of the phase-change energy storage unit in the front position. In this embodiment, the first breaking seal element includes a front positioning hollow sheet 18 stuck in the front diameter reduction port 2, and a first breaking seal nail 1 provided on the outer end surface of the front positioning hollow sheet 18. The second breaking seal element includes a rear positioning hollow sheet 21 stuck in the rear diameter reduction port 13, and a second breaking seal nail 14 provided on the outer end surface of the rear positioning hollow sheet 21. The end of the first breaking seal nail 1 passes through and punctures the rear sealing film 20 of the phase-change energy storage unit in the front position after the third plug-in structure is connected to the fourth plug-in structure, and the end of the second breaking seal nail 14 passes through and punctures the front sealing film 19 of the phase-change energy storage unit in the rear position after the third plug-in structure is connected to the fourth plug-in structure. The ends of the first breaking seal nail 1 and the second breaking seal nail 14 are provided with a plurality of spikes to expand the puncture range.

[0023] In this embodiment, multiple groups of heat-conducting support sheets 10 are evenly arranged axially between the outer wall of the concentric inner cylinder 9 and the inner wall of the outer cylinder 8, and each group of heat-conducting support sheets 10 is composed of multiple radial heat-conducting support sheets evenly arranged around the center line of the concentric inner cylinder 9. On the one hand, it plays a supporting role, and on the other hand, it is conducive to heat exchange.

[0024] Working principle:

[0025] 1. The outer cylinders 8 of two adjacent phase-change energy storage units are connected by the third plug-in structure and the fourth plug-in structure, and the concentric inner cylinders 9 of two adjacent phase-change energy storage units are connected by the first plug-in structure and the second plug-in structure. The second seal-breaking element of the phase-change energy storage unit at the front points to the front sealing film 19 of the phase-change energy storage unit at the rear and punctures the front sealing film 19, and the first seal-breaking element of the phase-change energy storage unit at the rear points to the rear sealing film 20 of the phase-change energy storage unit at the front and punctures the rear sealing film 20. Thus, while the front and rear phase-change energy storage units are combined, the phase-change energy storage materials in the two concentric inner cylinders 9 are connected. The first seal-breaking element of the frontmost phase-change energy storage unit and the second seal-breaking element of the rearmost phase-change energy storage unit can be removed, and the front sealing film 19 of the frontmost phase-change energy storage unit and the rear sealing film 20 of the rearmost phase-change energy storage unit are in a sealed state.

[0026] 2. When in use, the high-temperature medium first passes through the annular space between the concentric inner cylinder 9 and the outer cylinder 8, and the phase change energy storage material absorbs heat and stores energy. When necessary, the low-temperature medium passes through the annular space between the concentric inner cylinder 9 and the outer cylinder 8, and the phase change energy storage material releases heat to achieve the heating function.

[0027] The above is a detailed description of the embodiments of the utility model, but the above contents are only preferred embodiments of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of the invention of the utility model should still fall within the scope of this patent.

Claims

1. A phase change energy storage composite structure, comprising a plurality of phase change energy storage units, characterized in that: The phase change energy storage unit includes an outer cylinder, a concentric inner cylinder arranged in the outer cylinder, a front reduced diameter opening and a rear reduced diameter opening arranged at both ends of the concentric inner cylinder, a front sealing film arranged at the inner end of the front reduced diameter opening, a rear sealing film arranged at the inner end of the rear reduced diameter opening, a phase change energy storage material encapsulated in the concentric inner cylinder, a first plug-in structure arranged at the outer end of the front reduced diameter opening, a second plug-in structure arranged at the outer end of the rear reduced diameter opening, a third plug-in structure arranged at the front end of the outer cylinder, a fourth plug-in structure arranged at the rear end of the outer cylinder, a first breaking seal element arranged at the inner side of the front reduced diameter opening, and a second breaking seal element arranged at the inner side of the rear reduced diameter opening. The outer cylinders of two adjacent phase change energy storage units are connected by the third plug-in structure and the fourth plug-in structure, and the concentric inner cylinders of two adjacent phase change energy storage units are connected by the first plug-in structure and the second plug-in structure. The second breaking seal element of the phase change energy storage unit at the front position points to the front sealing film of the phase change energy storage unit at the rear position, and the first breaking seal element of the phase change energy storage unit at the rear position points to the rear sealing film of the phase change energy storage unit at the front position.

2. The phase change energy storage composite structure according to claim 1, characterized in that: A plurality of groups of heat-conducting support plates are evenly arranged axially between the outer wall of the concentric inner cylinder and the inner wall of the outer cylinder, and each group of heat-conducting support plates is composed of a plurality of radial heat-conducting support plates evenly arranged around the center line of the concentric inner cylinder.

3. The phase change energy storage composite structure according to claim 1, characterized in that: The first plug-in structure includes a plurality of axial protrusions provided on the outer circumferential surface of the front reducing port and an expanding sleeve arranged concentrically with the front reducing port, a slot is formed between the top surface of the axial protrusion and the expanding sleeve, and a first sealing ring is provided on the bottom surface of the slot, and the second plug-in structure includes a plurality of axial grooves provided on the inner circumferential surface of the rear reducing port, the rear reducing port of the phase change energy storage unit at the front is inserted into the slot of the phase change energy storage unit at the rear, and the axial protrusion of the phase change energy storage unit at the rear is inserted into the axial groove of the phase change energy storage unit at the front.

4. The phase change energy storage composite structure according to claim 1, characterized in that: The third plug-in structure is a reducing bayonet provided at the front end of the outer cylinder and a limiting convex ring provided on the outer circumferential surface of the reducing bayonet. A second sealing ring is provided on the bottom surface of the reducing bayonet. The fourth plug-in structure is a limiting ring groove provided on the inner circumferential surface of the rear end of the outer cylinder. The limiting ring groove of the outer cylinder of the phase change energy storage unit at the front is buckled with the limiting convex ring of the outer cylinder of the phase change energy storage unit at the rear.

5. The phase change energy storage composite structure according to claim 1, characterized in that: The first breaking seal element includes a front positioning hollow sheet stuck in the front reduced diameter opening, and a first breaking seal nail arranged on the outer end surface of the front positioning hollow sheet; the second breaking seal element includes a rear positioning hollow sheet stuck in the rear reduced diameter opening, and a second breaking seal nail arranged on the outer end surface of the rear positioning hollow sheet; the end of the first breaking seal nail passes through and punctures the rear sealing membrane of the phase change energy storage unit at the front position after the third plug-in structure is connected to the fourth plug-in structure; the end of the second breaking seal nail passes through and punctures the front sealing membrane of the phase change energy storage unit at the rear position after the third plug-in structure is connected to the fourth plug-in structure.

6. The phase change energy storage composite structure according to claim 5, characterized in that: A plurality of spikes are disposed at the ends of the first seal-breaking nail and the second seal-breaking nail.

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