Assembled energy storage heat exchange water tank

Abstract

The utility model belongs to the technical field of energy storage heat exchange, specifically relates to an assembled energy storage heat exchange water tank, which comprises: a shell, the shell comprises a plurality of detachably connected side plates, and the plurality of side plates are connected to jointly enclose a chamber with both ends open; a tube bundle mechanism, both ends of the tube bundle mechanism are detachably connected with both ends of the shell, and when the tube bundle mechanism is connected with the shell, the chamber with both ends open forms a closed chamber, and the closed chamber is used for storing water; an energy storage unit, the energy storage unit is detachably connected on the shell and located in the closed chamber, and the energy storage unit contains a phase change medium. The utility model sets up the detachable connection between the shell of water tank, the tube bundle mechanism and the energy storage unit, and the shell is also surrounded by a plurality of detachably connected side plates, which modularizes the water tank, facilitates transportation and can be installed on site.

Description

Technical Field

[0001] This utility model belongs to the field of energy storage and heat exchange technology, specifically relating to a prefabricated energy storage and heat exchange water tank. Background Technology

[0002] An energy storage tank is a type of water tank that uses a phase change medium as a cold storage medium. Existing energy storage tanks are usually made of several plates welded together. The tank body is also welded to other components (such as energy storage units), which makes it difficult to transport energy storage tanks as they require a lot of space. Summary of the Invention

[0003] In view of this, the present invention provides a prefabricated energy storage and hot water exchange tank that is easy to transport.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A prefabricated energy storage and hot water exchange tank includes: The housing includes multiple detachably connected side plates, which together enclose a cavity open at both ends; The tube bundle mechanism has two ends that are detachably connected to the two ends of the housing, and when the tube bundle mechanism is connected to the housing, the open chambers at both ends form a closed chamber for storing water. An energy storage unit, which is detachably connected to the housing and located within the enclosed cavity, contains a phase change medium; The tube bundle mechanism has a fluid inlet for fluid to enter and a fluid outlet for fluid to flow out. When the fluid flows through the tube bundle mechanism, it exchanges heat with the water in the closed chamber, causing the phase change medium to undergo a phase change.

[0005] As described above, the assembled energy storage hot water tank may optionally include a plurality of energy storage tubes extending along a first direction, at least one end of each energy storage tube being detachably connected to a side plate on the corresponding side, and each energy storage tube containing the phase change medium. The tube bundle mechanism extends along a second direction, and the extension lines of the first direction and the extension lines of the second direction intersect.

[0006] Optionally, the tube bundle mechanism includes a plurality of detachably connected tube bundle units, each of which extends along the second direction.

[0007] Optionally, each of the tube bundle units includes a first flow divider, a second flow divider, and a plurality of fluid tubes connected between the first flow divider and the second flow divider and spaced apart, wherein each of the fluid tubes extends along the second direction; Each of the tube bundle units further includes a first connecting assembly that is detachably connected to the first flow divider plate and has the fluid inlet. A first receiving cavity is formed between the first connecting assembly and the first flow divider plate. A first flow divider hole is opened on the first flow divider plate at the position corresponding to the fluid tube, so that the first receiving cavity communicates with the fluid tube. Each of the tube bundle units further includes a second connecting assembly that is detachably connected to the second flow divider and has the fluid outlet. A second receiving cavity is formed between the second connecting assembly and the second flow divider. A second flow divider hole is opened on the second flow divider at the position corresponding to the fluid tube, so that the second receiving cavity communicates with the fluid tube. In the tube bundle mechanism, the first connecting components are detachably connected to each other, the second connecting components are detachably connected to each other, and the first connecting components and the second connecting components on the outside of the tube bundle mechanism are detachably connected to the two ends of the housing, respectively.

[0008] Optionally, the first connecting assembly includes a first end cap having the fluid inlet and a first connecting plate detachably connected to the first end cap, wherein the first end cap and the first diverter plate enclose the first receiving cavity. The second connecting assembly includes a second end cap having the fluid outlet and a second connecting plate detachably connected to the second end cap, wherein the second end cap and the second diverter plate enclose the second receiving cavity. In the tube bundle mechanism, the first connecting plates are detachably connected to each other, the second connecting plates are detachably connected to each other, and the first connecting plate and the second connecting plate on the outside of the tube bundle mechanism are detachably connected to the two ends of the housing, respectively.

[0009] Optionally, the fluid pipe is a bellows.

[0010] As described above, the prefabricated energy storage and hot water exchange tank may optionally include a plurality of turbulence units detachably connected to the shell. Each turbulence unit includes a plurality of turbulence pipes detachably disposed at intervals in the closed chamber, a connecting pipe detachably connected to the plurality of turbulence pipes, and a water pump detachably disposed on the connecting pipe. Each of the aforementioned baffle tubes has multiple through holes spaced apart along its length.

[0011] Optionally, each of the baffle tubes extends along a third direction, and the extension lines in the first direction, the second direction, and the third direction intersect each other.

[0012] Optionally, mounting holes are provided on the side plate of the housing corresponding to the position of the baffle tube.

[0013] Optionally, the connecting pipe is located outside the housing.

[0014] Optionally, the extension lines in the first direction, the second direction, and the third direction are perpendicular to each other.

[0015] As described above, in the prefabricated energy storage and hot water exchange tank, the phase change temperature of the phase change medium is optionally 4~15℃ or 40~52℃.

[0016] In the prefabricated energy storage and hot water exchange tank described above, the fluid may optionally be water.

[0017] As described above, in the prefabricated energy storage and hot water exchange tank, each of the side panels includes multiple detachably connected plates, and each plate has an integrally connected extension edge on all four sides, with at least two of the extension edges bent to the side.

[0018] As described above, the prefabricated energy storage and hot water exchange tank may optionally include a cable passing through opposite sides of the housing, with the two ends of the cable exposed on opposite sides of the housing. The prefabricated energy storage and hot water exchange tank may also include locking components for fixing the two ends of the cable to the opposite sides of the housing.

[0019] As described above, the prefabricated energy storage and hot water exchange tank may optionally have a square-shaped shell.

[0020] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art: This utility model sets up a detachable connection between the shell, tube bundle mechanism and energy storage unit of the water tank, and the shell is also surrounded by multiple detachable side plates, which modularizes the water tank, making it easy to transport and install on site.

[0021] This utility model's water tank exchanges heat with the water inside the shell through a tube bundle mechanism. The temperature change of the water inside the shell causes a phase change in the phase change medium, thereby storing energy and increasing its capacity. Furthermore, the heat exchange between the fluid and the water, and the indirect heat exchange with the phase change medium, causes a phase change in the medium, ensuring sufficient contact between the water and the energy storage unit, resulting in high heat exchange efficiency. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0023] Figure 1This is a three-dimensional structural diagram of a prefabricated energy storage and hot water exchange tank according to an embodiment of the present invention (the turbulence unit is not shown). Figure 2 This is a partially exploded view of a prefabricated energy storage and hot water exchange tank according to an embodiment of the present invention. Figure 3 This is a schematic diagram of the tube bundle unit of a prefabricated energy storage and hot water exchange tank according to an embodiment of the present invention. Figure 4 This is a schematic diagram showing the connection between the plates of the side panel of a prefabricated energy storage and hot water exchange tank according to an embodiment of the present invention. Figure 5 This is a front view schematic diagram of a prefabricated energy storage and hot water exchange tank according to an embodiment of the present invention; Figure 6 This is a top view schematic diagram of a prefabricated energy storage and hot water exchange tank according to an embodiment of the present utility model; Figure 7 for Figure 6 Schematic diagram of the sectional view along the central AA direction; Figure 8 for Figure 6 Schematic diagram of the BB-direction section; Figure 9 for Figure 5 Schematic diagram of cross-section along the CC direction; Figure label: 1. Shell; 11. Side panel; 111. Sheet metal; 112. Extension edge; 2. Tube bundle mechanism; 21. Tube bundle unit; 211. Fluid inlet; 212. Fluid outlet; 213. First flow divider; 214. Second flow divider; 215. Fluid pipe; 216. First end cap; 217. Second end cap; 218. First connecting plate; 219. Second connecting plate; 220. First receiving cavity; 221. Second receiving cavity; 3. Energy storage pipe; 4. Fluid spoiler unit; 41. Fluid spoiler pipe; 42. Connecting pipe; 43. Water pump; 44. Through hole; 5. Bolts. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solutions in the embodiments of this utility model, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art should fall within the protection scope of this utility model.

[0025] See Figures 1-9The prefabricated energy storage and hot water exchange tank shown includes a shell 1, a tube bundle mechanism 2 detachably connected to the shell 1, and an energy storage unit detachably connected to the shell 1, wherein the energy storage unit contains a phase change medium.

[0026] Depend on Figures 1-2 As can be seen, the housing 1 includes multiple detachably connected side plates 11, which together enclose a cavity with openings at both ends.

[0027] In some embodiments, each side panel 11 includes a plurality of detachably connected plates 111, and each plate 111 has an integrally connected extension edge 112 on all four sides, with at least two of the extension edges bent laterally. Figure 4 As can be seen, the two extended edges 112 are fixed together by bolts 5 and nuts. To enhance the sealing performance, a sealing gasket is also provided between the two extended edges, and the sealing gasket can be a rubber gasket.

[0028] When assembling the shell 1, first select the number of plates according to the preset side plate size, connect the selected plates with bolts and nuts to form the side plates, and then connect the side plates according to the preset shape (such as square) with bolts and nuts to form the shell.

[0029] See also Figure 1 and Figure 2 The two ends of the tube bundle mechanism 2 are detachably connected to the two ends of the housing 1, and when the tube bundle mechanism 2 is connected to the housing 1, the open chambers at both ends form a closed chamber for storing water, and the energy storage unit is located in the closed chamber and is in full contact with the water. The tube bundle mechanism 2 has a fluid inlet for fluid to enter and a fluid outlet for fluid to flow out. When the fluid flows through the tube bundle mechanism 2, it exchanges heat with the water in the closed chamber, causing a phase change in the phase change medium.

[0030] Mounting holes for installing energy storage units are pre-drilled in the side panel material. See [link / reference] Figure 5 and Figure 9 The energy storage unit includes multiple energy storage tubes 3 extending along a first direction. One end of each energy storage tube 3 is detachably connected to the plate of the corresponding side plate, and each energy storage tube 3 is encapsulated with a phase change medium. The tube bundle mechanism extends along a second direction.

[0031] The tube bundle mechanism 2 includes multiple detachably connected tube bundle units, each extending along a second direction. See also... Figure 3Each tube bundle unit 21 includes a first flow divider 213, a second flow divider 214, and a plurality of fluid tubes 215 connected between the first flow divider 213 and the second flow divider 214 and distributed at intervals. Each fluid tube 215 extends along a second direction and is located in a closed chamber. Each fluid tube 215 is a corrugated tube, which can increase the contact area with water and the fluid has a disturbance effect in the fluid tube 215, which is beneficial to improving heat transfer efficiency.

[0032] Then by Figure 3 As can be seen, each tube bundle unit 21 also includes a first connecting assembly detachably connected to the first diverter plate 213 and having a fluid inlet 211, and a second connecting assembly detachably connected to the second diverter plate 214 and having a fluid outlet 212. A first receiving cavity 220 is formed between the first connecting assembly and the first diverter plate 213. A first diversion hole is opened on the first diverter plate at the position corresponding to the fluid pipe 215, so that the first receiving cavity 220 is connected to the fluid pipe 215. A second receiving cavity 221 is formed between the second connecting assembly and the second diverter plate 214. A second diversion hole is opened on the second diverter plate 214 at the position corresponding to the fluid pipe 215, so that the second receiving cavity 221 is connected to the fluid pipe 215.

[0033] In the tube bundle mechanism, the first connecting components are detachably connected to each other, the second connecting components are detachably connected to each other, and the first and second connecting components on the outside of the tube bundle mechanism are detachably connected to the two ends of the housing, respectively.

[0034] In some embodiments, the first connecting assembly includes a first end cap 216 having a fluid inlet 211 and a first connecting plate 218 detachably connected to the first end cap 216. A first receiving cavity 220 is formed between the first end cap and the first diverter plate. The first end cap, the first connecting plate 218, and the first diverter plate 213 are detachably connected, and a sealing gasket is provided between adjacent components. The second connecting assembly includes a second end cap 217 having a fluid outlet 212 and a second connecting plate 219 detachably connected to the second end cap 217. A second receiving cavity 221 is formed between the second end cap 217 and the second diverter plate 214. The second end cap, the second connecting plate, and the second diverter plate are detachably connected, and a sealing gasket is provided between adjacent components. In the tube bundle mechanism, the first connecting plates are detachably connected to each other, the second connecting plates are detachably connected to each other, and the first and second connecting plates on the outer side of the tube bundle mechanism are detachably connected to the two ends of the housing, respectively.

[0035] The first connecting plate and the second connecting plate are both hollowed-out connecting plates in the middle. The hollowed-out part in the middle is used to avoid the first end cap and the second end cap, and the connecting plates are integrally connected with an extension edge around their perimeter.

[0036] The connection between the first connecting plates or between the first connecting plate and the housing is achieved by bolts and nuts connecting the extended edges of the first connecting plates or the extended edges of the housing plates, with a sealing gasket between the connected parts. Similarly, the connection between the second connecting plates or between the second connecting plate and the housing is achieved by bolts and nuts connecting the extended edges of the second connecting plates or the extended edges of the housing plates, with a sealing gasket between the connected parts.

[0037] In some embodiments, such as by Figure 8 As can be seen, multiple energy storage tubes 3 are distributed on opposite sides of the tube bundle unit, and are distributed sequentially at intervals along the length of the tube bundle unit, so that the phase change medium inside the energy storage tube 3 is in full contact with the water in the closed chamber.

[0038] To improve the heat transfer efficiency between the water inside the shell, the fluid in the tube bundle mechanism, and the phase change medium, see [link to relevant documentation]. Figure 2 and Figures 5-7 The prefabricated energy storage and hot water exchange tank also includes multiple turbulence units 4 detachably connected to the plate 111 of the shell 1. Each turbulence unit includes multiple turbulence pipes 41 detachably arranged in the closed chamber, a connecting pipe 42 detachably connected to the multiple turbulence pipes 41, and a water pump 43 arranged on the connecting pipe 42. Each turbulence pipe 41 has multiple through holes 44 distributed at intervals along its length, so that water in the closed chamber enters the turbulence pipe 41 from the through hole 44 on one side of the turbulence pipe 41 connected to the connecting pipe 42 and located on both sides of the water pump 43, and then is sprayed into the closed chamber through the through hole 44 on the other side of the turbulence pipe 41, so that the water in the closed chamber is in a state of circulation, further increasing the heat exchange efficiency and the uniformity of the water temperature.

[0039] Each baffle tube 41 is detachably connected to the plate of the corresponding side panel, and mounting holes are pre-drilled on the plate at the positions of the baffle tubes. The connecting pipe 42 is located outside the housing. Each baffle tube 41 connected to the housing extends along a third direction. The extension lines in the first direction, the second direction, and the third direction intersect each other, which is beneficial to improving heat exchange efficiency. In some embodiments, the extension lines in the first direction, the second direction, and the third direction are perpendicular to each other, which is beneficial to the arrangement of each pipe and to obtaining better heat transfer efficiency. See also... Figure 9 The first direction is vertical, while the third and second directions are both horizontal and perpendicular to each other.

[0040] See also Figure 9 Each tube bundle unit has a turbulence pipe that allows water to enter and a turbulence pipe that allows water to spray out on opposite sides, and the turbulence pipes on each side of the tube bundle unit are distributed sequentially at intervals along the length of the tube bundle unit.

[0041] This prefabricated energy storage and hot water exchange tank is easy to transport because its various components are modularized. It does not require a large space during transportation and can be installed on-site after arrival, making installation convenient.

[0042] In other embodiments, the prefabricated energy storage and hot water exchange tank further includes cables extending through opposite sides of the housing, with both ends of the cables exposed on opposite sides of the housing. The prefabricated energy storage and hot water exchange tank also includes locking assemblies for fixing the two ends of the cables to the opposite sides of the housing. The locking assemblies may be bolts connected to both ends of the cables and nuts that mate with the bolts. If cables are used, the side panels can be made of relatively thin material; if cables are not used, the side panels can be made of relatively thick material.

[0043] In some embodiments, when the assembled energy storage and hot water exchange tank is specifically applied, it can be used for cooling energy storage. It can use a phase change medium with a phase change temperature of 4 to 15°C, such as a phase change medium with a phase change temperature of about 9°C. The fluid flowing in the tube bundle unit is water.

[0044] When the water temperature entering the tube bundle unit is low, such as about 5°C, and the phase change medium has a phase change temperature of 9°C, the water exchanges heat with the water in the shell when it flows through the tube bundle unit, indirectly causing the phase change medium to change phase. The phase change medium continuously absorbs cold source and releases a certain amount of latent heat, causing itself to solidify, thereby achieving energy storage. Moreover, it can store more energy than using water alone or using the phase change medium alone.

[0045] During the energy storage phase, the outlet water temperature flowing through the tube bundle unit may rise to 9°C.

[0046] When the water temperature entering the tube bundle unit is high, such as about 13°C, while the water temperature inside the tube bundle unit and the phase change medium temperature are approximately 9°C, the water temperature entering the shell is higher than the water temperature inside the shell and the phase change temperature of the phase change medium. The water inside the shell exchanges heat with the water in the tube bundle unit. At the same time, the phase change medium exchanges heat indirectly with the water in the tube bundle unit through the water inside the shell. The phase change medium absorbs heat, melts, and releases energy, thereby cooling the water flowing through the tube bundle unit.

[0047] During the energy release phase, the outlet water temperature flowing through the tube bundle unit may drop to 11~12℃.

[0048] In some other embodiments, the assembled energy storage and hot water exchange tank can also be used for heating and energy storage. It can use a phase change medium with a phase change temperature of 40~52℃, such as a phase change medium with a phase change temperature of 45℃. The fluid flowing in the tube bundle unit is water.

[0049] During the energy storage phase, the inlet and outlet water temperatures of the tube bundle unit are approximately 55°C and 50°C, respectively; during the energy release phase, the inlet and outlet water temperatures of the tube bundle unit are approximately 40°C and 35°C, respectively.

[0050] Whether in the energy storage phase or the energy release phase, the temperature fluctuation of the water flowing through the tube bundle unit is relatively small.

[0051] In addition, in the description of this utility model, unless otherwise specified and limited, it should be noted that the terms "installation", "connection" and "connection" should be interpreted broadly. For example, they can refer to mechanical connection or electrical connection, or the internal connection of two components. They can be directly connected or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0052] The above embodiments are only used to illustrate the present utility model, and are not intended to limit the present utility model. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present utility model. Therefore, all equivalent technical solutions also fall within the scope of the present utility model. The patent protection scope of the present utility model should be defined by the claims.

Claims

1. A prefabricated energy storage and hot water exchange tank, characterized in that, The prefabricated energy storage and hot water exchange tank includes: The housing includes multiple detachably connected side plates, which together enclose a cavity open at both ends; The tube bundle mechanism has two ends that are detachably connected to the two ends of the housing, and when the tube bundle mechanism is connected to the housing, the open chambers at both ends form a closed chamber for storing water. An energy storage unit, which is detachably connected to the housing and located within the enclosed cavity, contains a phase change medium; The tube bundle mechanism has a fluid inlet for fluid to enter and a fluid outlet for fluid to flow out. When the fluid flows through the tube bundle mechanism, it exchanges heat with the water in the closed chamber, causing the phase change medium to undergo a phase change.

2. The prefabricated energy storage and hot water exchange tank according to claim 1, characterized in that, The energy storage unit includes a plurality of energy storage tubes extending along a first direction, at least one end of each energy storage tube is detachably connected to a side plate on the corresponding side, and the phase change medium is encapsulated inside each energy storage tube. The tube bundle mechanism extends along a second direction, and the extension lines of the first direction and the extension lines of the second direction intersect.

3. The prefabricated energy storage and hot water exchange tank according to claim 2, characterized in that, The tube bundle mechanism includes a plurality of detachably connected tube bundle units, each of which extends along the second direction.

4. The prefabricated energy storage and hot water exchange tank according to claim 3, characterized in that, Each of the tube bundle units includes a first flow divider plate, a second flow divider plate, and a plurality of fluid tubes connected between the first flow divider plate and the second flow divider plate and distributed at intervals, and each of the fluid tubes extends along the second direction; Each of the tube bundle units further includes a first connecting assembly that is detachably connected to the first flow divider plate and has the fluid inlet. A first receiving cavity is formed between the first connecting assembly and the first flow divider plate. A first flow divider hole is opened on the first flow divider plate at the position corresponding to the fluid tube, so that the first receiving cavity communicates with the fluid tube. Each of the tube bundle units further includes a second connecting assembly that is detachably connected to the second flow divider and has the fluid outlet. A second receiving cavity is formed between the second connecting assembly and the second flow divider. A second flow divider hole is opened on the second flow divider at the position corresponding to the fluid tube, so that the second receiving cavity communicates with the fluid tube. In the tube bundle mechanism, the first connecting components are detachably connected to each other, the second connecting components are detachably connected to each other, and the first connecting components and the second connecting components on the outside of the tube bundle mechanism are detachably connected to the two ends of the housing, respectively.

5. The prefabricated energy storage and hot water exchange tank according to claim 4, characterized in that, The first connecting assembly includes a first end cap having the fluid inlet and a first connecting plate detachably connected to the first end cap, wherein the first end cap and the first diverter plate enclose the first receiving cavity. The second connecting assembly includes a second end cap having the fluid outlet and a second connecting plate detachably connected to the second end cap, wherein the second end cap and the second diverter plate enclose the second receiving cavity. In the tube bundle mechanism, the first connecting plates are detachably connected to each other, the second connecting plates are detachably connected to each other, and the first connecting plate and the second connecting plate on the outside of the tube bundle mechanism are detachably connected to the two ends of the housing, respectively.

6. The prefabricated energy storage and hot water exchange tank according to claim 4, characterized in that, The fluid pipe is a corrugated pipe.

7. The prefabricated energy storage and hot water exchange tank according to any one of claims 2 to 6, characterized in that, The prefabricated energy storage and hot water exchange tank also includes multiple flow-disrupting units detachably connected to the shell. Each flow-disrupting unit includes multiple flow-disrupting pipes detachably disposed at intervals in the closed chamber, a connecting pipe detachably connected to the multiple flow-disrupting pipes, and a water pump detachably disposed on the connecting pipe. Each of the aforementioned baffle tubes has multiple through holes spaced apart along its length.

8. The prefabricated energy storage and hot water exchange tank according to claim 7, characterized in that, Each of the aforementioned baffle tubes extends along a third direction, and the extension lines in the first direction, the second direction, and the third direction intersect each other; and / or, The side plate of the housing has mounting holes pre-drilled at the positions corresponding to the baffle tubes; and / or, The connecting pipe is located outside the housing.

9. The prefabricated energy storage and hot water exchange tank according to claim 8, characterized in that, The extension lines in the first direction, the second direction, and the third direction are all perpendicular to each other.

10. The prefabricated energy storage and hot water exchange tank according to claim 1, characterized in that, The phase transition temperature of the phase change medium is 4~15℃ or 40~52℃; and / or, The fluid is water; and / or, Each of the side panels includes a plurality of detachably connected plates, each plate having integrally connected extension edges on all four sides, with at least two of the extension edges bent laterally; and / or, The prefabricated energy storage and hot water exchange tank further includes cables extending through opposite sides of the shell, with both ends of the cables exposed on opposite sides of the shell. The prefabricated energy storage and hot water exchange tank also includes locking components for fixing the two ends of the cables to the opposite sides of the shell; and / or, The shell is square in shape.

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