An energy storage box device
By designing an energy storage and harvesting device, utilizing the heat exchange between the energy storage medium inside the box and the circulating medium inside the pipe, combined with sensor monitoring, the problem of simulating the performance of the energy storage and harvesting box under extreme environments was solved, achieving stable energy storage and release, and ensuring the accuracy of experimental data and the safety of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN UNIV
- Filing Date
- 2026-06-02
- Publication Date
- 2026-07-03
AI Technical Summary
Existing experimental platforms for energy storage devices struggle to accurately simulate the performance mechanisms of energy storage and harvesting boxes under extreme environments, particularly the thermal performance and phase change heat transfer mechanisms of these boxes, failing to meet experimental requirements in extreme conditions.
An energy storage and harvesting device was designed, comprising a housing, heat exchange tubes, a pressure sensor, and a temperature sensor. Through heat exchange between the energy storage medium inside the housing and the circulating medium inside the tubes, combined with real-time monitoring by the pressure and temperature sensors, an adjustable temperature sensor fixing structure and a sealing design are adopted to ensure stable operation and data accuracy of the device.
It achieves stable energy storage and release under extreme environments, ensuring the accuracy of experimental data and the safety of the device. It adapts to heat exchange tubes of different diameters, improving the adaptability and service life of the device under extreme temperature conditions.
Smart Images
Figure CN224455524U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of experimental devices for energy storage and extraction, and in particular to an energy storage and extraction box device. Background Technology
[0002] An energy storage and extraction system is a comprehensive energy management system that integrates the functions of "energy storage" and "energy extraction" to achieve efficient energy storage, flexible scheduling, and on-demand energy release.
[0003] In various extreme environmental operating scenarios, equipment often needs to face harsh conditions such as no continuous external energy supply for a long time. At this time, it is necessary to rely on the energy storage, extraction and conversion functions inside the energy storage and extraction system to maintain stable operation in extreme environments.
[0004] To address the energy storage and extraction technology requirements in the aforementioned extreme environments, the experimental platforms of commonly used energy storage devices are not compatible with the design requirements and environmental conditions of extreme environment energy storage and extraction boxes. This makes it difficult to conduct systematic experimental research on the performance mechanism of such energy storage and extraction boxes, and to accurately simulate and study their internal heat storage and extraction performance and phase change heat transfer mechanism. Utility Model Content
[0005] In order to provide a dedicated experimental platform for simulating extreme environments and studying the performance mechanism of composite phase change energy storage systems, this invention provides an energy storage and harvesting box device.
[0006] The energy storage and extraction box device provided by this utility model adopts the following technical solution:
[0007] An energy storage and extraction box device includes a box with an inner cavity, a heat exchange tube disposed in the inner cavity, a pressure sensor for detecting the pressure in the inner cavity, and a temperature sensor for detecting the temperature in the inner cavity.
[0008] The enclosure includes an outer shell and a top cover located on top of the outer shell, and the inner cavity is located within the outer shell;
[0009] The top cover is provided with a fixed structure for the temperature sensor to be raised and lowered to detect the temperature at different depths of the inner cavity; the fixed structure includes several thin rods provided on the bottom surface of the top cover for the temperature sensor to be raised and lowered, and a locking structure for rotating and locking the temperature sensor to the thin rods.
[0010] The inner cavity is filled with an internal energy storage medium, and the heat exchange tube is filled with an internal circulating medium. The internal energy storage medium and the internal circulating medium exchange heat with each other to store energy.
[0011] By adopting the above technical solution, energy storage and release are achieved through heat exchange between the energy storage medium inside the box and the circulating medium inside the pipe. At the same time, the pressure and temperature of the inner cavity are monitored in real time by pressure sensors and temperature sensors to keep track of the operating status and ensure the stable operation of the device. The temperature sensor can be adjusted up and down in the inner cavity by a fixed structure so that the temperature sensor can detect the temperature at different depths in the inner cavity.
[0012] Optionally, the housing is provided with a perforated structure, which includes a tube hole for the end of the heat exchange tube to extend out of the inner cavity, a wire hole for the wiring of the temperature sensor to extend out of the inner cavity, and a pressure measuring hole for the installation of a pressure sensor.
[0013] By adopting the above technical solution, the perforated structure provides an installation channel for the heat exchange tube, pressure sensor and temperature sensor, which facilitates the subsequent individual maintenance of the heat exchange tube, pressure sensor and temperature sensor; the wire hole and pipe hole can be further sealed to ensure the airtightness of the inner cavity and ensure the normal operation of the device.
[0014] Optionally, the outer casing and the top cover have a sealing structure for sealing the inner cavity;
[0015] The sealing structure includes a rubber ring disposed between the outer shell and the top cover, quick clamps circumferentially spaced along the top edge of the outer shell, and a mounting base disposed on the top cover and corresponding to the quick clamps;
[0016] The top of the outer casing has a groove for placing the rubber ring.
[0017] By adopting the above technical solution, the outer shell and top cover can be opened to allow for the installation and disassembly of components in the inner cavity; the groove is used for positioning of the rubber ring to prevent displacement, and together with the quick clamp and mounting base, the top cover and outer shell are locked together to achieve the sealing of the inner cavity, prevent leakage of the energy storage medium inside the box, and meet the requirements of sealed use in extreme environments.
[0018] Optionally, the fixing structure also includes a rubber sleeve fitted onto the thin rod for mounting the temperature sensor.
[0019] By adopting the above technical solution, the height of the rubber sleeve can be adjusted, which facilitates temperature measurement by the temperature sensor at different positions and improves the accuracy of experimental data.
[0020] Optionally, the locking structure includes a protruding block disposed on the inner side of the rubber sleeve, and the thin rod is provided with a sliding groove for the protruding block to slide along the axial direction and a plurality of locking grooves that are spaced apart along the axial direction and for the protruding block to rotate and engage.
[0021] The locking groove is connected to the sliding groove.
[0022] By adopting the above technical solution, the protrusion can move along the sliding groove axially to adjust the height of the rubber sleeve and temperature sensor. After adjusting to the target position, the protrusion can be rotated and locked into the corresponding locking groove to lock the rubber sleeve, prevent the rubber sleeve from shifting, ensure the stability of the temperature measurement position, and guarantee the accuracy of the experimental data.
[0023] Optionally, the locking structure further includes a locking ball disposed in the locking groove for locking the protrusion and a first spring that drives the locking ball to always press against the protrusion;
[0024] The thin rod has a placement cavity in the locking groove for placing the locking ball and the first spring;
[0025] The protruding block has a locking groove for locking by a locking ball.
[0026] By adopting the above technical solution, the first spring always drives the locking ball to press against the protruding block. When the protruding block rotates and gets into the locking groove, the locking ball will get into the locking groove of the protruding block, preventing the protruding block from coming out of the locking groove. The locking ball can be retracted and the lock can be released by forcefully unscrewing the rubber sleeve. The operation is convenient and quick.
[0027] Optionally, the surface of the thin rod is coated with a low thermal conductivity material.
[0028] By adopting the above technical solution, the low thermal conductivity material can effectively block the heat conduction of the thin rod, avoid the thin rod affecting the heat transfer process of the energy storage medium inside the box due to its own high thermal conductivity, and ensure the accuracy of temperature detection data.
[0029] Optionally, the bottom of the inner cavity is provided with an elastic floating support structure for fixing the heat exchange tube;
[0030] The elastic floating support structure includes a fixed support base disposed at the bottom of the inner cavity, a floating bracket for fixing the heat exchange tube, and a second spring located between the fixed support base and the floating bracket.
[0031] By adopting the above technical solution, the heat exchange tube is stably fixed by the floating bracket. The second spring is elastic and can adapt to the thermal expansion and contraction deformation of the heat exchange tube caused by temperature changes, thus changing its position. The elastic structure allows the heat exchange tube to have a certain displacement space in the axial and radial directions, adapting to heat exchange tubes of different diameters and improving the adaptability and service life of the device under extreme temperature conditions.
[0032] Optionally, the heat exchange tubes include independently installed and continuously serpentine high-temperature heat exchange tubes and low-temperature heat exchange tubes.
[0033] By adopting the above technical solution, the high-temperature heat exchange tube and the low-temperature heat exchange tube are set up independently, and high-temperature and low-temperature circulating media can be introduced separately, so that the energy storage and release processes are carried out separately without interference, thereby improving the controllability of the energy storage and extraction process; the continuous serpentine bending structure can increase the contact area between the heat exchange tube and the energy storage medium in the tank, thereby improving the heat exchange efficiency.
[0034] Optionally, the top cover is provided with a pressure relief valve for pressure relief, and the hole structure further includes a pressure relief hole for installing the pressure relief valve.
[0035] By adopting the above technical solution, the pressure relief valve is used to relieve pressure when the internal pressure is too high, and the pressure relief hole is used for the installation of the pressure relief valve to ensure the safety of the experiment.
[0036] In summary, this utility model has at least one of the following beneficial technical effects:
[0037] 1. Energy storage and release are achieved through heat exchange between the energy storage medium inside the tank and the circulating medium inside the pipe. At the same time, the pressure and temperature of the inner cavity are monitored in real time by pressure sensors and temperature sensors to keep track of the operating status and ensure the stable operation of the device.
[0038] 2. The protrusion can move along the sliding groove axially to adjust the height of the rubber sleeve and temperature sensor. After adjusting to the target position, the protrusion is rotated and locked into the corresponding locking groove to lock the rubber sleeve, prevent the rubber sleeve from shifting, ensure the stability of the temperature measurement position, and ensure the accuracy of the experimental data.
[0039] 3. The heat exchange tubes are stably fixed by a floating bracket. The second spring is elastic and can adapt to the thermal expansion and contraction deformation of the heat exchange tubes caused by temperature changes. The elastic structure allows the heat exchange tubes to have a certain displacement space in the axial and radial directions, which can be adapted to heat exchange tubes of different diameters, and improves the adaptability and service life of the device under extreme temperature conditions. Attached Figure Description
[0040] Figure 1 This is a schematic diagram of an energy storage and extraction device.
[0041] Figure 2 This is a schematic diagram of the heat exchanger tubes;
[0042] Figure 3 This is a schematic diagram of the top cover and the thin rod;
[0043] Figure 4 This is a schematic diagram of a fixed structure;
[0044] Figure 5 It is a cross-sectional view of the thin rod and the rubber sleeve;
[0045] Figure 6 This is a schematic diagram of an elastic floating support structure.
[0046] The parts referred to by the numbers in the above attached diagrams are as follows: 1. Housing; 2. Heat exchange tube; 10. Inner cavity; 21. High-temperature heat exchange tube; 22. Low-temperature heat exchange tube; 23. Pressure relief valve; 100. Energy storage medium inside the housing; 20. Circulating medium inside the tube; 11. Outer shell; 12. Top cover; 3. Sealing structure; 31. Rubber ring; 32. Quick clamp; 33. Mounting base; 110. Groove; 4. Hole structure; 41. Pipe hole; 42. 43. Wire hole; 44. Pressure relief hole; 5. Pressure measuring hole; 6. Fixing structure; 7. Thin rod; 8. Rubber sleeve; 9. Locking structure; 10. Protrusion block; 11. Locking ball; 12. First spring; 13. Sliding groove; 14. Locking groove; 15. Placement cavity; 16. Locking groove; 17. Elastic floating support structure; 18. Fixed support base; 19. Floating bracket; 10. Second spring. Detailed Implementation
[0047] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.
[0048] This utility model discloses an energy storage and extraction box device.
[0049] Reference Figure 1 An energy storage and extraction device includes a housing 1, heat exchange tubes 2, a pressure sensor, and a temperature sensor. The housing 1 has an inner cavity 10, within which the heat exchange tubes 2 are disposed. The heat exchange tubes 2 are made of copper and are evenly distributed within the inner cavity 10. The heat exchange tubes 2 are in a continuously curved, serpentine shape and include independently disposed high-temperature heat exchange tubes 21 and low-temperature heat exchange tubes 22. The heat exchange tubes 2 can be of different diameters for experimental research. The pressure sensor and temperature sensor are mounted on the housing 1. The pressure sensor is used to detect the pressure within the inner cavity 10, and the temperature sensor is used to detect the temperature within the inner cavity 10. The temperature sensor is specifically a thermocouple. The housing 1 is also equipped with a pressure relief valve 23 to release pressure when the pressure within the inner cavity 10 becomes too high. The pressure relief valve 23 is used to control the maximum pressure inside the housing to ensure experimental safety.
[0050] Reference Figure 1 The inner cavity 10 is filled with an internal energy storage medium 100, and the heat exchange tube 2 is filled with an internal circulation medium 20. The internal energy storage medium 100 and the internal circulation medium 20 exchange heat with each other to store energy.
[0051] Reference Figure 2 The heat exchange tube 2 is connected to a circulator outside the housing 1. The circulator supplies high-temperature or low-temperature circulating fluid medium to flow and exchange heat with the energy storage medium 100 inside the housing. Temperature sensors are installed at the inlet and outlet of the high-temperature heat exchange tube 21 and the low-temperature heat exchange tube 22. Both the high-temperature heat exchange tube 21 and the low-temperature heat exchange tube 22 are connected to the circulation pipe of the external high-temperature heating circulator.
[0052] Reference Figure 1 The housing 1 includes an outer shell 11 and a top cover 12. The inner cavity 10 is located inside the outer shell 11, and the top cover 12 is located on top of the outer shell 11. The top cover 12 is made of stainless steel; the outer shell 11 is made of stainless steel, with a waterproof insulation layer coated on the inner wall and an external heat insulation board. The portion of the heat exchange tube 2 outside the housing 1 can be wrapped with a heat insulation layer to ensure that the inlet and outlet temperatures of the heat exchange tube 2 are not affected by the external environment.
[0053] Reference Figure 1 A sealing structure 3 for sealing the inner cavity 10 is provided between the outer shell 11 and the top cover 12. The sealing structure 3 includes a rubber ring 31, quick clamps 32, and mounting bases 33. A groove 110 is provided on the top of the outer shell 11 for placing the rubber ring 31. The rubber ring 31 is adhered to the groove 110 and located between the outer shell 11 and the top cover 12. After the top cover 12 is closed, the inside of the box can be sealed. The quick clamps 32 are circumferentially spaced along the edge of the top of the outer shell 11. The mounting bases 33 are located on the edge of the top cover 12 and are circumferentially spaced, with each mounting base 33 corresponding to one of the quick clamps 32. The mounting bases 33 and the quick clamps 32 cooperate to close the outer shell 11 and the top cover 12. The top cover 12 and the outer shell 11 are locked together by the quick clamps 32 to press the rubber ring 31 and achieve the sealing of the inner cavity 10.
[0054] Reference Figure 1 and Figure 3 The housing 1 has a perforated structure 4. The perforated structure 4 includes pipe holes 41, wire holes 42, pressure relief holes 43, and pressure measuring holes 44. Pipe holes 41 are located on the top cover 12, and there are four pipe holes 41. Pipe holes 41 are used for the end of the heat exchange tube 2 to extend out of the inner cavity 10. Wire holes 42 are also located on the top cover 12, and there are four wire holes 42 located at the four corners of the top cover 12. Wire holes 42 are used for the wiring of the temperature sensor to extend out of the inner cavity 10. After the wiring of the temperature sensor is installed and the wire holes 42 are opened out, they are sealed with glue. Pressure relief holes 43 are also located on the top cover 12, and are located on the side of the top cover 12. Pressure relief holes 43 are used for the installation of pressure relief valve 23. Pressure measuring holes 44 are located on the side wall of the outer shell 11 and are used for the installation of pressure sensors.
[0055] Reference Figure 3The top cover 12 is equipped with a fixing structure 5 for fixing the temperature sensor. The fixing structure 5 includes a thin rod 51, a rubber sleeve 52, and a locking structure 53. The thin rod 51 is made of steel and its surface is coated with a low thermal conductivity material to prevent the high thermal conductivity of the thin rod 51 from affecting the heat transfer of the internal energy storage medium and the temperature measurement of the thermocouple. Several thin rods 51 are provided, and the thin rods 51 are threaded to the bottom surface of the top cover 12 facing the inner cavity 10. The rubber sleeve 52 is fitted on the thin rod 51 and is used for mounting the temperature sensor. Each rubber sleeve 52 can be pre-embedded with a miniature thermocouple to realize multi-point temperature measurement on a single rod with adjustable measurement point height. The locking structure 53 is located between the thin rod 51 and the rubber sleeve 52 and is used to lock the rubber sleeve 52 onto the thin rod 51.
[0056] The locking structure 53 includes a protrusion 531, a locking ball 532, and a first spring 533.
[0057] Reference Figure 4 and Figure 5 The protrusion 531 is located inside the rubber sleeve 52. The thin rod 51 has a sliding groove 510 for the protrusion 531 to slide along the axial direction. The thin rod 51 also has a locking groove 511, which is arranged at intervals along the axial direction. The locking groove 511 is connected to the sliding groove 510, and the locking groove 511 allows the protrusion 531 to be rotated and engaged to adjust the position of the temperature sensor.
[0058] Reference Figure 5 A locking ball 532 is disposed within a locking groove 511, and the locking ball 532 is used to lock the protrusion 531 within the locking groove 511. A first spring 533 continuously drives the locking ball 532 downwards. A placement cavity 512 is formed in the locking groove 511 on the thin rod 51, providing a place for the locking ball 532 and the first spring 533. A locking groove 5310 is formed in the protrusion 531, allowing the locking ball 532 to lock the protrusion 531 within the locking groove 511.
[0059] The rubber sleeve 52 slides axially along the sliding groove 510 and is screwed into the locking groove 511 when it slides to the appropriate position. The first spring 533 drives the locking ball 532 to press against the locking groove 5310 on the protrusion 531. When the rubber sleeve 52 rotates back, the protrusion 531 pushes the locking ball 532 back into the placement cavity 512 to unlock the protrusion 531.
[0060] An elastic floating support structure 101 is provided at the bottom of the inner cavity 10, which is used to fix the heat exchange tube 2.
[0061] Reference Figure 3 and Figure 6The elastic floating support structure 101 includes a fixed support base 1011, a floating bracket 1012, and a second spring 1013. The support base is located at the bottom of the inner cavity 10. The floating bracket 1012 is used to fix the heat exchange tube 2. The floating bracket 1012 is located on top of the support base, and the bracket and the support base are connected by the second spring 1013 to accommodate the expansion and contraction of the pipe due to temperature changes. The heat exchange tube 2 rests on the floating bracket 1012 and is fixed with flexible straps. The elastic floating support structure 101 allows the heat exchange tube 2 to have a certain displacement space in the axial and radial directions, and the elastic floating support structure 101 is adaptable to heat exchange tubes 2 of various diameters.
[0062] The implementation principle of the energy storage and extraction box device in this embodiment of the utility model is as follows: Before the experiment, the entire energy storage and extraction box is cooled down to the simulated ambient temperature. During the energy storage experiment, the constant temperature bath of the high temperature heating circulator contains the heated circulating medium. The circulating pump is started and injected into the pipe of the box 1 from the inlet of the high temperature heat exchange tube 21 to heat the medium inside the box.
[0063] Real-time temperature changes are monitored by temperature sensors inside the chamber and at the inlet and outlet of the pipes. During energy harvesting in the experiment, the constant temperature bath of the low-temperature cooling circulator contains cooled circulating medium. The circulating pump is started and injected into the pipe of chamber 1 from the inlet of the low-temperature heat exchange tube 22 to cool the medium inside the chamber.
[0064] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.
Claims
1. A stored energy device comprising: It includes a housing (1) with an inner cavity (10), a heat exchange tube (2) disposed in the inner cavity (10), a pressure sensor for detecting the pressure of the inner cavity (10), and a temperature sensor for detecting the temperature of the inner cavity (10); The housing (1) includes an outer shell (11) and a top cover (12) located on top of the outer shell (11), and the inner cavity (10) is located in the outer shell (11); The top cover (12) is provided with a fixing structure (5) for the temperature sensor to be raised and lowered to detect the temperature at different depths of the inner cavity (10); the fixing structure (5) includes several thin rods (51) provided on the bottom surface of the top cover (12) for the temperature sensor to be raised and lowered, and a locking structure (53) for rotating and locking the temperature sensor to the thin rods (51). The inner cavity (10) is filled with an internal energy storage medium (100), and the heat exchange tube (2) is filled with an internal circulation medium (20). The internal energy storage medium (100) and the internal circulation medium (20) exchange heat with each other to store energy.
2. A storage and retrieval bin arrangement according to claim 1, characterized in that: The housing (1) has a hole structure (4), which includes a pipe hole (41) for the end of the heat exchange tube (2) to extend out of the inner cavity (10), a wire hole (42) for the wiring of the temperature sensor to extend out of the inner cavity (10), and a pressure measuring hole (44) for the installation of the pressure sensor.
3. A storage and retrieval bin arrangement according to claim 2, characterised in that: The outer shell (11) and the top cover (12) have a sealing structure (3) for sealing the inner cavity (10). The sealing structure (3) includes a rubber ring (31) disposed between the outer shell (11) and the top cover (12), quick clamps (32) circumferentially spaced at the top edge of the outer shell (11), and a mounting base (33) disposed on the top cover (12) and corresponding to the quick clamps (32). The top of the outer shell (11) has a groove (110) for placing the rubber ring (31).
4. A storage and retrieval bin arrangement according to claim 3, characterised in that: The fixing structure (5) also includes a rubber sleeve (52) fitted onto the thin rod (51) for mounting the temperature sensor.
5. The energy storage and extraction box device according to claim 4, characterized in that: The locking structure (53) includes a protrusion (531) disposed inside the rubber sleeve (52), and the thin rod (51) is provided with a sliding groove (510) for the protrusion (531) to slide along the axial direction and a plurality of locking grooves (511) spaced apart along the axial direction for the protrusion (531) to rotate and engage. The locking groove (511) is connected to the sliding groove (510).
6. A storage and retrieval bin arrangement according to claim 5, wherein: The locking structure (53) further includes a locking ball (532) disposed in the locking groove (511) for locking the protrusion (531) and a first spring (533) that drives the locking ball (532) to have a constant tendency to press against the protrusion (531). The thin rod (51) has a placement cavity (512) in the locking groove (511) for placing the locking ball (532) and the first spring (533). The protrusion (531) has a locking groove (5310) for locking the locking ball (532).
7. A storage and retrieval bin arrangement according to claim 4, characterised in that: The surface of the thin rod (51) is coated with a low thermal conductivity material.
8. The energy storage device of claim 1, wherein: The bottom of the inner cavity (10) is provided with an elastic floating support structure (101) for fixing the heat exchange tube (2). The elastic floating support structure (101) includes a fixed support seat (1011) disposed at the bottom of the inner cavity (10), a floating bracket (1012) for fixing the heat exchange tube (2), and a second spring (1013) located between the fixed support seat (1011) and the floating bracket (1012).
9. A storage and retrieval bin arrangement according to claim 8, characterised in that: The heat exchange tube (2) includes an independently set high-temperature heat exchange tube (21) and a low-temperature heat exchange tube (22) that are continuously serpentine.
10. The energy storage device of claim 3, wherein: The top cover is provided with a pressure relief valve (23) for pressure relief, and the hole structure (4) also includes a pressure relief hole (43) for installing the pressure relief valve (23).