A Compressed Air Distributed Energy Storage Device

Abstract

This invention provides a distributed compressed air energy storage device, relating to the field of energy storage device technology. It includes a housing; a support frame disposed within and connected to the housing; multiple partitions arranged sequentially along the height direction of the housing and defining multiple receiving cavities with the support frame; a lifting assembly connected to one side of the housing in the width direction and adapted to cooperate with the multiple partitions, the lifting assembly operating to drive the partitions to rotate relative to the support frame; and an air storage tank housed within each receiving cavity, with each cavity corresponding to at least one air storage tank. This invention utilizes the lifting assembly to drive the partitions to rotate, allowing the air storage tank to be removed and placed using its own weight, thus facilitating the removal and placement of the air storage tank, thereby simplifying maintenance and reducing the workload of maintenance personnel.

Description

Technical Field

[0001] This utility model relates to the field of energy storage device technology, and more specifically, to a compressed air distributed energy storage device. Background Technology

[0002] Energy storage devices are important equipment for smart grids to achieve two-way energy interaction. Compressed gas energy storage is a large-scale energy storage technology. This technology uses energy to drive a compressor to compress gas and store it in surface containers or underground gas storage facilities. When needed, the compressed gas is transported from the container or underground gas storage facility to a turbine for power generation. In the existing technology, compressed gas is stored in multiple gas tanks in the energy storage device. When the gas tanks need to be repaired, maintenance personnel need to spend a lot of effort to remove and put back the gas tanks, which is a high workload for maintenance personnel. Utility Model Content

[0003] The purpose of this invention is to provide a compressed air distributed energy storage device to improve the aforementioned problems. To achieve this purpose, the technical solution adopted by this invention is as follows:

[0004] This application provides a compressed air distributed energy storage device, comprising: a housing; a support frame disposed within and connected to the housing; multiple partitions connected to the support frame, the multiple partitions being arranged sequentially along the height direction of the housing and defining multiple receiving cavities with the support frame; a lifting assembly connected to one side of the housing in the width direction and adapted to cooperate with the multiple partitions, the lifting assembly operating to drive the partitions to rotate relative to the support frame; and an air storage tank housed within the receiving cavities, with each receiving cavity corresponding to at least one air storage tank.

[0005] According to some embodiments of the present invention, the lifting assembly includes a support rod extending along the height direction of the housing. The support rod is adapted to move along the height direction of the housing. The support rod is provided with a plurality of first support portions along its own extension direction. The partition is provided with a second support portion, and the second support portion is rotatably supported on the top of the first support portion.

[0006] According to some embodiments of the present invention, the first support part is constructed as a ball head, the second support part is constructed as a mating groove, the partition is sleeved on the support rod through the mating groove, and the inner diameter of the mating groove is smaller than the diameter of the ball head.

[0007] According to some embodiments of the present invention, a receiving cavity is defined between two adjacent upper and lower partitions. A plurality of mounting grooves opening toward the receiving cavity are provided on the partition above the receiving cavity. A wedge block is movably connected in the mounting groove. The plurality of wedge blocks correspond to a plurality of gas storage tanks respectively. The wedge block is adapted to move along the thickness direction of the partition and can selectively receive or protrude from the mounting groove. The inclined surface of the wedge block is disposed away from the lifting assembly. A protruding anti-collision rubber ring is provided on the outer peripheral wall of the gas storage tank. The side of the wedge block facing the lifting assembly is adapted to abut against the anti-collision rubber ring in the width direction of the housing.

[0008] According to some embodiments of the present invention, a baffle is provided at one end of the partition near the lifting assembly. The baffle is adapted to abut against multiple gas tanks in the width direction of the shell. The wedge block is provided with a limiting groove that opens toward the gas tank. The inner wall of the limiting groove is adapted to abut against a portion of the outer peripheral wall of the gas tank.

[0009] According to some embodiments of the present invention, the partition is provided with a movable channel communicating with the mounting groove, and a wedge plate is movably provided in the movable channel. The wedge plate can be moved to selectively cooperate with the wedge block, thereby driving the wedge block to be received in the mounting groove.

[0010] According to some embodiments of this utility model, a reset spring is provided on the side of the wedge block away from the receiving cavity, and the free end of the reset spring is connected to the inner wall of the mounting groove.

[0011] According to some embodiments of this utility model, it further includes a compression unit and a power generation unit. The compression unit is used to generate high-pressure gas. Multiple gas storage tanks are jointly constructed as a gas storage module. The gas storage module and the high-pressure common rail system are jointly constructed as an energy storage unit. Multiple gas storage tanks are connected in parallel through the high-pressure common rail system. The energy storage unit is connected to the compression unit through the high-pressure common rail system. The power generation unit is connected to the energy storage unit through the high-pressure common rail system. The power generation unit is used to output electrical energy.

[0012] According to some embodiments of the present invention, the housing includes a top plate, a side plate, a photovoltaic module, and a deployment assembly. The deployment assembly is connected between the top plate and the side plate. The photovoltaic module is disposed outside the side plate and / or the top plate. The side plate includes a rotating plate pivotally connected to the top plate. The deployment assembly is a hydraulic assembly, with one end connected to the rotating plate and the other end connected to the top plate. The rotating plate opens and closes by rotating the deployment assembly downwards.

[0013] According to some embodiments of the present invention, a control unit is also included. The control unit includes a main controller, a regulation component, and a management module that are interconnected. The regulation component is disposed in the compression unit, the power generation unit, and the energy storage unit. The regulation component acquires the operating information of the compression unit, the power generation unit, and the energy storage unit. The management module generates management information based on the operating information. The main controller generates control commands based on the management information. The regulation component regulates the compression unit, the power generation unit, and the energy storage unit according to the control commands.

[0014] The beneficial effects of this utility model are as follows:

[0015] This invention uses a lifting component to drive the partition to rotate, allowing the gas tank to be removed and placed using its own weight. This facilitates the removal and placement of the gas tank, thereby simplifying maintenance and reducing the workload of maintenance personnel.

[0016] Other features and advantages of this invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing embodiments of the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures particularly pointed out in the written description, claims, and drawings. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the energy storage device of this utility model;

[0019] Figure 2 This is a schematic diagram showing the cooperation between the bracket, partition, and lifting assembly of this utility model;

[0020] Figure 3 This is a cross-sectional view showing the assembly of the partition, wedge block, and wedge plate of this utility model.

[0021] Figure 4 This is a schematic diagram of the structure of the wedge block and wedge plate of this utility model;

[0022] Figure 5 This is a schematic diagram of the gas storage tank of this utility model.

[0023] Marked in the image:

[0024] 10. Shell;

[0025] 21. Column; 22. Supporting platform;

[0026] 30. Partition plate; 31. Mounting groove; 32. Wedge block; 321. Limiting groove; 33. Baffle plate; 36. Wedge plate; 34. Push rod; 35. Return spring;

[0027] 41. Support rod; 42. Ball head;

[0028] 50. Gas storage tank; 51. Anti-collision rubber ring. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of 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, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to illustrate selected embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0030] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, in the description of this utility model, terms such as "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0031] like Figures 1-5 As shown, this embodiment provides a compressed air distributed energy storage device, including: a housing 10, a support, partitions 30, a lifting assembly, and an air storage tank 50. The support is disposed inside the housing 10 and connected to the housing 10. The partitions 30 are configured to be multiple and connected to the support. The multiple partitions 30 are arranged sequentially along the height direction of the housing 10 and define multiple receiving cavities with the support. The lifting assembly is connected to one side of the housing 10 in the width direction and is adapted to cooperate with the multiple partitions 30. The lifting assembly works to drive the partitions 30 to rotate relative to the support. The air storage tank 50 is housed in the receiving cavity, and one receiving cavity corresponds to at least one air storage tank 50.

[0032] In some embodiments, the housing 10 serves as the external frame of the entire energy storage device. The housing 10 provides a closed and stable installation space for the internal components, protecting the internal structure from external environmental interference. The bracket is fixed inside the housing 10, and multiple partitions 30 are connected to the bracket. The bracket ensures the installation stability of the partitions 30. The multiple partitions 30 are arranged sequentially along the height direction of the housing 10 and together with the bracket define multiple receiving cavities. The multiple receiving cavities are arranged sequentially in the height direction. The lifting assembly is installed on one side of the width direction of the housing 10. The lifting assembly can transmit power to the partitions 30 through a specific mechanical transmission method (such as gear transmission, linkage transmission, etc.), so that the partitions 30 can rotate at a preset angle to achieve an inclined state, which facilitates the insertion and removal of the gas storage tank 50. The gas storage tank 50 is placed in the receiving cavity formed by the partitions 30 and the bracket. The gas storage tank 50 is used to store compressed air to achieve energy storage and release.

[0033] It is understandable that after the gas storage tank 50 is placed in the receiving cavity, the extension direction of the gas storage tank 50 is parallel to the width direction of the shell 10. One receiving cavity corresponds to multiple gas storage tanks 50. Thus, in one receiving cavity, multiple gas storage tanks 50 are arranged sequentially along the length direction of the shell 10.

[0034] After a period of use, the gas storage tank 50 may malfunction, requiring maintenance. During maintenance, personnel can control the lifting assembly to rotate multiple partitions 30. When the partitions 30 are tilted, the gas storage tank 50 can be removed more easily and effortlessly, facilitating maintenance. When returning the maintained gas storage tank 50 to the receiving cavity, personnel can control the lifting assembly to rotate the partitions 30 in the opposite direction, tilting them again. The gas storage tank 50 can then slide relative to the partitions 30 under its own weight, making placement easier. It should be noted that the gas storage tank 50 is removed or returned to the receiving cavity from the end furthest from the lifting assembly.

[0035] According to the present invention, a distributed compressed air energy storage device drives the partition 30 to rotate through the operation of the lifting component, so that the gravity of the air storage tank 50 can be used when taking out and placing the air storage tank 50, thereby facilitating the taking out and placing of the air storage tank 50, and further facilitating the maintenance of the air storage tank 50 and reducing the workload of maintenance personnel.

[0036] According to some embodiments of the present invention, the lifting assembly includes a support rod 41 extending along the height direction of the housing 10. The support rod 41 is adapted to move along the height direction of the housing 10. The support rod 41 is provided with a plurality of first support parts along its own extension direction. The partition 30 is provided with a second support part, and the second support part is rotatably supported on the top of the first support part.

[0037] In some embodiments, the lifting assembly includes a drive member and a support rod 41. The drive member can be a telescopic motor, a telescopic electric cylinder, a pneumatic cylinder, or a hydraulic cylinder, etc., and is not limited here. The drive member is connected to the housing 10, and the drive shaft of the drive member is connected to the support rod 41. When the drive member is working, the drive shaft can move along the height direction of the housing 10, thereby driving the support rod 41 to move along the height direction of the housing 10.

[0038] Since the partition 30 is rotatably supported on the top of the first support of the support rod 41 by the second support, the partition 30 can be rotated when the support rod 41 moves along the height direction of the housing 10, thereby causing the partition 30 to tilt relative to the housing 10, which facilitates the removal and placement of the gas storage tank 50.

[0039] According to some embodiments of the present invention, the first support part is constructed as a ball head 42, the second support part is constructed as a mating groove, and the partition plate 30 is sleeved on the support rod 41 through the mating groove, the inner diameter of the mating groove being smaller than the diameter of the ball head 42.

[0040] In some embodiments, the inner diameter of the mating groove is larger than the outer diameter of the support rod 41, and the inner diameter of the mating groove is smaller than the diameter of the ball head 42. Therefore, the partition 30 can be fitted onto the support rod 41 through the mating groove, and the bottom of the partition 30 can abut against the ball head 42, thereby allowing the partition 30 to be supported by the support rod 41. When the support rod 41 moves along the height direction of the housing 10, the ball head 42 can rotate relative to the mating groove to avoid interference between the partition 30 and the support rod 41 during rotation, thus allowing the partition 30 to rotate stably relative to the support rod 41.

[0041] Preferably, the mating groove includes a groove body and a ball groove. The ball groove is positioned close to the corresponding ball head 42, so that a portion of the corresponding ball head 42 can be accommodated within the ball groove, and the outer peripheral wall of a portion of the ball head 42 can fit against the inner peripheral wall of the ball groove. This increases the contact area between the partition 30 and the ball head 42, resulting in better support of the partition 30 by the ball head 42. Furthermore, this arrangement also makes the rotation of the partition 30 and the ball head 42 smoother, improving the fluidity of the partition 30's rotation. Further, a lubricating layer is provided inside the ball groove; the lubricating layer can be grease, etc., and there are no limitations on this.

[0042] According to some embodiments of the present invention, the bracket is provided with a plurality of support platforms 22 spaced apart along the height direction of the housing 10. The plurality of support platforms 22 correspond to a plurality of the partitions 30 respectively, and the top of the plurality of support platforms 22 is adapted to abut against the bottom outer periphery of the corresponding partition 30.

[0043] In some embodiments, multiple support platforms 22 are respectively arranged corresponding to multiple partitions 30, and the top of the multiple support platforms 22 respectively cooperates with the bottom of the corresponding partition 30 to form a stable support for the partition 30. That is, the ball head 42 and the support platform 22 can respectively form a support for the partition 30, making the support stability of the partition 30 better, thereby improving the setting stability of the partition 30.

[0044] Preferably, in the width direction of the housing 10, the distance between the support platform 22 and the bottom of the housing 10 gradually decreases in the direction toward the lifting assembly. Therefore, when the energy storage device is operating normally, the gas storage tank 50 can be stably housed within the receiving cavity by its own weight, preventing the gas storage tank 50 from detaching from the receiving cavity due to vibrations of the energy storage device, thus improving the stability of the gas storage tank 50.

[0045] According to some embodiments of the present invention, the bracket includes a plurality of columns 21 extending along the height direction of the housing 10 and connected to the housing 10. The plurality of brackets and two adjacent partitions 30 define a receiving cavity. Support platforms 22 are respectively provided on the plurality of columns 21.

[0046] In some embodiments, multiple columns 21 are spaced apart from each other, and each column 21 is provided with a support platform 22 protruding towards the partition 30. The partition 30 is supported by the multiple columns 21 through the support platform 22, which improves the stability of the fit between the partition 30 and the multiple columns 21. Two adjacent partitions 30 and columns 21 define a receiving cavity. The two adjacent partitions 30 can restrict the degree of freedom of the multiple gas storage tanks 50 in the height direction of the housing 10, while the columns 21 can restrict the degree of freedom of the multiple gas storage tanks 50 in the length direction of the housing 10.

[0047] According to some embodiments of the present invention, a mounting groove 31 open toward the receiving cavity is provided on the partition 30 above the receiving cavity. A plurality of wedge blocks 32 are movably connected in the mounting groove 31. The plurality of wedge blocks 32 correspond to a plurality of gas storage tanks 50 respectively. The wedge blocks 32 are adapted to move along the thickness direction of the partition 30 and can be selectively received or protruded from the mounting groove 31. The inclined surface of the wedge blocks 32 is disposed away from the lifting assembly. A protruding anti-collision rubber ring 51 is provided on the outer peripheral wall of the gas storage tank 50. The side of the wedge block 32 facing the lifting assembly is adapted to abut against the anti-collision rubber ring 51 in the width direction of the housing 10.

[0048] In some embodiments, in a receiving cavity, a partition 30 located at the top of the receiving cavity is provided with a plurality of mounting slots 31, each of which corresponds to a plurality of gas storage tanks 50 in the receiving cavity. Each mounting slot 31 is provided with a wedge block 32, which is adapted to move in the thickness direction of the partition 30 to selectively receive or protrude from the mounting slot 31. When the wedge block 32 is received in the mounting slot 31, it facilitates the removal and placement of the gas storage tank 50. When the wedge block 32 protrudes from the mounting slot 31, the wedge block 32 can abut against the anti-collision rubber ring 51 of the gas storage tank 50 in the width direction of the housing 10, thereby preventing the gas storage tank 50 from accidentally leaving the receiving cavity.

[0049] Understandably, when the support rod 41 moves to tilt the partition 30 so that the gas tank 50 can detach from the receiving cavity under its own weight, the wedge block 32 can block the gas tank 50, thereby preventing the gas tank 50 from accidentally detaching from the receiving cavity. At this time, the maintenance personnel can control the movement of the wedge block 32 corresponding to the gas tank 50 that needs maintenance, so that the wedge block 32 is received in the mounting groove 31. At this time, the gas tank 50 that needs maintenance can slide out of the receiving cavity. That is, through the above settings, when the gas tank 50 that needs maintenance is being maintained, only the gas tank 50 that needs maintenance can detach from the receiving cavity, preventing the other gas tanks 50 from accidentally detaching from the receiving cavity.

[0050] Of course, when the gas tank 50 is put back into the receiving cavity after maintenance, since the inclined surface of the wedge block 32 is away from the lifting assembly, the gas tank 50 will cooperate with the inclined surface of the wedge block 32. As the gas tank 50 moves gradually, the gas tank 50 will push the wedge block 32 to move until the wedge block 32 is received into the mounting slot 31. That is, when installing the gas tank 50, the maintenance personnel do not need to operate the wedge block 32, making the installation operation of the gas tank 50 more convenient and further improving the maintenance work of the gas tank 50.

[0051] According to some embodiments of the present invention, a baffle 33 is provided at one end of the partition 30 near the lifting assembly. The baffle 33 is adapted to abut against a plurality of gas tanks 50 in the width direction of the housing 10. The wedge block 32 is provided with a limiting groove 321 that opens toward the gas tank 50. The inner wall of the limiting groove 321 is adapted to abut against a portion of the outer peripheral wall of the gas tank 50.

[0052] In some embodiments, the baffle 33 is disposed near the lifting assembly, and the gas tank 50 is removed or placed from the end away from the lifting assembly. Thus, when the gas tank 50 is housed within the receiving cavity, the baffle 33 can obstruct the gas tank 50, restricting its degree of freedom relative to the width direction of the housing 10, thereby ensuring the gas tank 50 is stably housed within the receiving cavity. Preferably, a rubber pad is provided on the side of the baffle 33 facing away from the lifting assembly to avoid rigid contact between the baffle 33 and the gas tank 50.

[0053] The wedge block 32 is provided with a limiting groove 321 that opens towards the gas tank 50. After the gas tank 50 is received in the receiving cavity, the inner peripheral wall of the limiting groove 321 can abut against a portion of the outer peripheral wall of the gas tank 50. This allows the wedge block 32 to restrict the degree of freedom of the gas tank 50 relative to the length direction of the shell 10, thereby ensuring that each gas tank 50 in a receiving cavity is located in a preset position, preventing multiple gas tanks 50 in a receiving cavity from contacting or even colliding with each other. Of course, by abutting against a portion of the outer peripheral wall of the gas tank 50 with the inner peripheral wall of the limiting groove 321, the contact area between the wedge block 32 and the anti-collision rubber ring 51 is larger, thereby making the abutting effect of the wedge block 32 on the anti-collision rubber ring 51 better, and thus making the limiting effect of the wedge block 32 on the gas tank 50 better.

[0054] According to some embodiments of the present invention, a movable channel communicating with the mounting groove 31 is provided in the partition plate 30, and a wedge plate 36 is movably provided in the movable channel. The wedge plate 36 can be moved to selectively cooperate with the wedge block 32, thereby driving the wedge block 32 to be received in the mounting groove 31.

[0055] In some embodiments, the inclined surface of the wedge plate 36 corresponds to the inclined surface of the wedge block 32, thereby the movement of the wedge plate 36 can drive the wedge block 32 to move in the thickness direction of the partition plate 30, so that the wedge block 32 is received in the mounting groove 31, thereby facilitating the control of the wedge block 32.

[0056] According to some embodiments of the present invention, the partition 30 is also provided with an movable hole suitable for communicating the movable channel with the outside. A push rod 34 is movably connected to the movable hole. One end of the push rod 34 extends into the movable channel and is connected to the wedge plate 36, and the other end of the push rod 34 extends out of the movable channel.

[0057] It is understood that one wedge block 32 corresponds to one gas storage tank 50, and one wedge block 32 corresponds to one wedge plate 36 and one push rod 34, that is, one push rod 34 corresponds to one gas storage tank 50. Therefore, when removing the gas storage tank 50 that needs maintenance, the maintenance personnel only need to move the corresponding push rod 34 to control the corresponding wedge block 32 to be housed in the mounting groove 31. At this time, the maintenance personnel can remove the gas storage tank 50 that needs maintenance, which facilitates the maintenance work of the gas storage tank 50.

[0058] In some embodiments, the inner peripheral wall of the movable hole is provided with a first thread, and the outer peripheral wall of the push rod 34 is provided with a second thread. The first thread and the second thread engage, thereby allowing maintenance personnel to drive the wedge plate 36 to move by rotating the push rod 34, thus enabling the wedge block 32 to be received or protruded from the mounting groove 31. The engagement of the first thread and the second thread gives the push rod 34 a self-locking effect, allowing the position of the wedge plate 36 to be controlled according to the needs of maintenance personnel, thereby enabling maintenance personnel to stably control the position of the wedge block 32.

[0059] According to some embodiments of the present invention, a return spring 35 is provided on the side of the wedge block 32 away from the receiving cavity, and the free end of the return spring 35 is connected to the inner wall of the mounting groove 31.

[0060] In some embodiments, the two ends of the return spring 35 are connected to the wedge block 32 and the inner wall of the mounting groove 31, respectively. The return spring 35 can drive the wedge block 32 to move and protrude from the mounting groove 31. Thus, after the gas tank 50 is installed into the receiving cavity, the return force of the return spring 35 and the gravity of the wedge block 32 work together to drive the wedge block 32 to protrude from the mounting groove 31, avoiding the need for maintenance personnel to manually drive the wedge block 32 to move. Of course, the arrangement of the return spring 35 can also make the wedge block 32 stably protrude from the mounting groove 31, so that the wedge block 32 can stably cooperate with the anti-collision rubber ring 51 of the gas tank 50, thereby making the wedge block 32 stably restrict the gas tank 50.

[0061] According to some embodiments of the present invention, the compressed air distributed energy storage device further includes a compression unit and a power generation unit. The compression unit is used to generate high-pressure gas. Multiple gas storage tanks 50 are jointly constructed as a gas storage module. The gas storage module and the high-pressure common rail system are jointly constructed as an energy storage unit. Multiple gas storage tanks 50 are connected in parallel through the high-pressure common rail system. The energy storage unit is connected to the compression unit through the high-pressure common rail system. The power generation unit is connected to the energy storage unit through the high-pressure common rail system. The power generation unit is used to output electrical energy.

[0062] In some embodiments, energy storage is an important device for enabling two-way energy interaction in smart grids. Compressed gas energy storage is a large-scale energy storage technology that uses energy to drive a compressor to compress gas and store it in surface containers or underground gas storage facilities. When needed, the compressed gas is then transported from the containers or underground gas storage facilities to a turbine for power generation.

[0063] Wind power, photovoltaic power, and other new energy power generation are characterized by fluctuations and intermittency. Gas energy storage, with its power distribution function, can smooth and stabilize the output power of intermittent renewable energy power generation, effectively solving the grid connection problem of new energy power generation. Simultaneously, large-scale energy storage technology can achieve peak shaving and valley filling of the power grid, further improving the flexibility and security of the power system. The inventors of this application have noted that underground gas storage and surface container compressed gas storage are currently the two mainstream large-scale compressed gas energy storage technologies, both primarily used for energy storage services in large-scale photovoltaic and wind power plants. Currently, there is a lack of devices providing compressed gas energy storage technology for distributed scenarios such as rural areas, buildings, islands, reefs, ranches, and outdoor activities.

[0064] To address the lack of compressed gas energy storage devices suitable for distributed scenarios, the inventors of this application have discovered that structural innovations in the small gas storage tanks 50 and the gas storage module frame can change the current technical characteristics of compressed gas energy storage technologies, which generally employ large underground salt caverns or stacked large gas storage spaces. Specifically, the small gas storage tanks 50 are connected in parallel through a high-pressure common rail system to form gas storage modules. This ensures that the connection between each gas storage tank 50 and the pipeline is disassembled or disconnected without affecting the sustainable operation of the overall device. In this way, a modular, customizable, and manageable gas energy storage device can be provided to meet the needs of different scales of energy storage, offering a compressed air distributed energy storage device with customizable energy storage scale for distributed power generation scenarios such as rural areas, buildings, islands, reefs, ranches, and outdoor activities.

[0065] Understandably, the compression unit includes a gas compressor, high-pressure gas pipes, and valve piping components. The compression unit connects to a photovoltaic or wind power generation system, utilizing its surplus electricity to drive the gas compressor to generate high-pressure gas. The energy storage unit includes a gas storage module and a high-pressure common rail system. The gas storage module includes multiple gas storage tanks 50, which are connected in parallel through the high-pressure common rail system. The gas storage tanks 50 are connected to the high-pressure common rail system via quick-connect couplings, allowing for easy installation and removal of the gas storage tanks without affecting the continuous operation of the gas storage device. The gas storage module connects to the compression unit through the high-pressure common rail system, allowing the high-pressure gas generated by the compression unit to be stored in the gas storage tanks 50. The gas storage tanks 50 can be made of standardized seamless steel pipes or directly from finished steel tanks made of seamless steel pipes from nitrogen cylinders, carbon dioxide cylinders, oxygen cylinders, argon cylinders, liquefied gas tanks, etc. The power generation unit connects to the energy storage unit through the high-pressure common rail system. The power generation unit uses the high-pressure gas output from the gas storage tanks 50 in the energy storage unit to perform work, converting mechanical energy into electrical energy, which is then output to the electrical equipment.

[0066] With the above settings, the installation and removal of each gas storage tank 50 does not affect the overall use of the gas storage module 410. If a single gas storage tank 50 fails, it can be removed simply by disconnecting the valve connecting it to the high-pressure common rail system and loosening the quick-release clamp. The disassembly process does not affect the overall continuous operation of the system. The energy storage capacity of the gas storage module can be freely customized, thus providing a modular, customizable and manageable energy storage device for distributed power generation scenarios.

[0067] In some embodiments, a fixing component, such as a permanent magnet chuck, is provided on the partition 30. The permanent magnet chuck is bolted to the partition 30, and a steel plate is pre-embedded in the placement area of ​​the energy storage unit. The gas storage module is attracted to the steel plate by the permanent magnet chuck. Permanent magnet chucks of different tonnages can be configured according to the size of the gas storage module. The permanent magnet chuck is easy to disassemble; when the gas storage module needs to be moved, simply reverse the lever of the permanent magnet chuck to release its connection to the steel plate. Thus, the fixing component significantly enhances the stability of the energy storage unit in the placement area, improving the safety and stability of the compressed air distributed energy storage device.

[0068] It is worth mentioning that multiple gas storage modules are connected in parallel to the high-pressure common rail system via high-pressure hoses. This means that when the high-pressure gas in one gas storage module is released, it can automatically switch to another gas storage module to release the high-pressure gas, thus achieving continuous and stable operation of the compressed air distributed energy storage device.

[0069] According to some embodiments of the present invention, the housing 10 includes a top plate, a side plate, a photovoltaic module, and an unfolding assembly. The unfolding assembly is connected between the top plate and the side plate. The photovoltaic module is disposed outside the side plate and / or the top plate. The side plate includes a rotating plate pivotally connected to the top plate. The unfolding assembly is a hydraulic assembly, with one end connected to the rotating plate and the other end connected to the top plate. The rotating plate opens and closes by rotating the unfolding assembly downwards.

[0070] In some embodiments, the housing 10 is used to enclose the compression unit, energy storage unit, power generation unit, and related components. The housing includes a top plate, side plates, photovoltaic modules, and a deployment assembly. The side plates include a rotating plate pivotally connected to the top plate. One end of the deployment assembly is connected to the rotating plate, and the other end is connected to the top plate. The deployment assembly can be a hydraulic assembly, and the rotating plate opens and closes by rotating downwards through the deployment assembly. The photovoltaic modules are disposed outside the side plates and / or the top plate, providing power to each unit and its components of the entire compressed air distributed energy storage device. The housing 10 also includes a backup power supply and a power interface. The power interface can be connected to external power supply equipment. When the photovoltaic modules fail or cannot operate due to weather conditions, the backup power supply and power interface can provide backup power to the entire compressed air distributed energy storage device. It is understood that a steel plate can be provided at the bottom of the housing 10 for connection to a support frame.

[0071] By setting up side panels that can be opened and closed, it is convenient to inspect and maintain the various units and related components inside the housing. Photovoltaic modules are set on the outside of the side panels and / or top panel of the housing 10, which can use clean energy to provide the electrical energy required for the operation of the compressed air distributed energy storage device. The backup power supply and power interface provided in the housing 10 improve the stability of the compressed air distributed energy storage device.

[0072] In some embodiments, the power generation unit includes an energy transmission device and a generator, with the output of the energy transmission device connected to the input of the generator.

[0073] The energy transmission equipment in the power generation unit is used to conduct high-pressure gas from the energy storage unit to the generator, which then converts mechanical energy into electrical energy and outputs it to the electrical equipment. Specifically, the energy transmission equipment includes a speed increaser, a flexible coupling, a pneumatic turbine unit, and a pulley assembly. The pneumatic turbine unit is connected to the speed increaser via the flexible coupling. The speed increaser uses planetary gear transmission, which has the high efficiency of gear transmission and can transmit a large amount of power. The output shaft of the speed increaser is connected to the generator. Furthermore, driven by the high-pressure gas, the pneumatic turbine unit rotates at high speed, driving the speed increaser to rotate through the flexible coupling. The speed increaser drives the generator to work through the pulley assembly and other transmission systems, converting mechanical energy into electrical energy.

[0074] By using the aforementioned energy transmission equipment to conduct high-pressure gas, the utilization efficiency of high-pressure gas can be improved, thereby increasing the power generation efficiency of the power generation unit.

[0075] According to some embodiments of the present invention, the compressed air distributed energy storage device further includes a control unit. The control unit includes a main controller, a regulation component, and a management module that are interconnected. The regulation component is disposed in the compression unit, the power generation unit, and the energy storage unit. The regulation component acquires the operating information of the compression unit, the power generation unit, and the energy storage unit. The management module generates management information based on the operating information. The main controller generates control commands based on the management information. The regulation component regulates the compression unit, the power generation unit, and the energy storage unit based on the control commands.

[0076] In some embodiments, the control unit includes a central controller, a control component, and a management module interconnected with each other. The management module includes energy management software that can monitor the energy storage information, operating information, and fault information of the compressed air distributed energy storage device, and can quickly and dynamically match the power generation and load efficiency of the compressed air distributed energy storage device to perform visualized management of the energy storage and power generation of the compressed air distributed energy storage device.

[0077] Specifically, the energy management software includes an energy dynamic calculation and analysis module, an energy balance management module, a report management module, a communication module, and a mobile client module. The energy dynamic calculation and analysis module calculates and evaluates the energy consumption, remaining compressed gas power generation, time required to fully store compressed gas, and output current and voltage values ​​in real time based on the operating information of each unit in the compressed air distributed energy storage device and feedback information from sensors. The energy balance module dynamically regulates and distributes the input of high-pressure gas and the output of electrical energy. During power generation, it sends feedback commands to the main controller based on the load characteristics of the electrical equipment, enabling the control unit to control the power output efficiency of the power generation units. During energy storage, it sends feedback commands to the main controller, enabling the control unit to control the high-pressure gas input efficiency of the compression units. The report management module summarizes and stores the information from the energy dynamic calculation and analysis module and analyzes historical information. The communication module enables wired or wireless network communication with the main controller, receives command data and operating status data of the compressed air distributed energy storage device, and sends relevant control commands. The mobile client module can remotely monitor the key parameters and operating status of each unit in the compressed air distributed energy storage device in real time, analyze the abnormal operating status and alarm information of each unit, and send relevant parameter information to the mobile client software.

[0078] By using the control unit to monitor, optimize, and manage each unit in the compressed air distributed energy storage device in real time, and by using a handheld mobile client platform to realize remote monitoring, analysis, diagnosis, and visual management of the compressed air distributed energy storage device, operators can efficiently and accurately locate fault points and quickly handle faults, thereby improving the operating efficiency and safety of the compressed air distributed energy storage device.

[0079] In some embodiments, the control assembly includes a plurality of first control components, each of which includes a first sensor and a first valve assembly connected to each other, and the first control components are connected between each tank and the high-pressure common rail system.

[0080] The first sensor and the first valve assembly are connected to the gas storage tank 50 of the energy storage unit and the high-pressure common rail system via a quick connector. In this embodiment, the first sensor may be a pressure sensor and / or a flow sensor, and the first valve assembly may be a solenoid valve. The pressure and flow sensors can monitor the pressure of the high-pressure gas in each gas storage tank 50 in real time, and the flow sensors can monitor the flow rate of the high-pressure gas in the high-pressure common rail system pipeline in real time. The control unit can control any gas storage tank 50 to store and release high-pressure gas through the solenoid valve.

[0081] The control unit can monitor the gas pressure in each gas storage tank 50 and the flow rate of high-pressure gas in the high-pressure common rail system pipeline through the first regulating component. If a gas storage tank 50 leaks, it can detect it in time and prompt the management module with the number of the faulty gas storage tank 50. The control unit can also adjust the overall pressure and flow balance of the compressed air distributed energy storage device according to different operating conditions of the compressed air distributed energy storage device, thereby improving the utilization efficiency of high-pressure gas.

[0082] In some embodiments, the control component includes a second control element, which includes a second sensor and a power converter connected to each other, the power converter being connected to the compression unit.

[0083] The second sensor and the power converter are connected to the compression unit via a quick connector. In this embodiment, the second sensor can identify different types of power. Specifically, the second sensor can identify whether the power input to the compression unit is from a photovoltaic power station or a wind power station, based on the different characteristics of the input power. The power converter can convert different types of power into stable single-characteristic power to supply the compression unit for outputting high-pressure gas.

[0084] The control unit can automatically convert different power types into stable single-characteristic electrical energy and connect it to the compression unit through the second regulation component, which can improve the stability of the compression unit's operation.

[0085] In some embodiments, the control component includes a third control element, which includes a third sensor and a converter connected to each other, the converter being connected to the power generation unit.

[0086] The third sensor and the converter are connected to the power generation unit via a quick connector. In this embodiment, the converter enables the generator to output DC or AC power. The third sensor can detect whether the current output by the generator is DC or AC and feed the detection information back to the main controller. The main controller controls the output of high-pressure gas from the energy storage unit according to the different types of current so that the power generation unit can stably output electrical energy.

[0087] The control unit, through a third regulating component, can automatically regulate the output of high-pressure gas from the energy storage unit according to different output currents, thereby improving the stability of the power output from the power generation unit.

[0088] In some embodiments, the compressed air distributed energy storage device further includes a mobile platform for supporting the housing 10.

[0089] The housing 10 is mounted on a mobile platform, which includes a support platform, wheels, and jacks. The support platform supports the housing, and the mobile platform can move the compressed air distributed energy storage device via the wheels or be secured by the jacks. This application does not limit the specific dimensions of the mobile platform; the dimensions can be customized according to the scale of the compressed air distributed energy storage device.

[0090] The aforementioned mobile platform can improve the mobility of compressed air distributed energy storage devices, enabling them to serve as mobile power sources for large-scale outdoor activities, as well as as fixed energy storage devices for distributed microgrids in rural areas, buildings, islands, reefs, pastures, and outdoor activities, thus expanding the application scenarios of compressed air distributed energy storage devices.

[0091] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

[0092] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A compressed air distributed energy storage device, characterized in that, include: Shell (10); A bracket, which is disposed within the housing (10) and connected to the housing (10); The partition (30) is constructed as a plurality of partitions connected to the bracket, and the plurality of partitions (30) are arranged sequentially along the height direction of the housing (10) and define a plurality of receiving cavities with the bracket; A lifting assembly is connected to one side of the housing (10) in the width direction and is adapted to cooperate with a plurality of said partitions (30), the lifting assembly being adapted to drive the partitions (30) to rotate relative to the support; Gas storage tank (50), the gas storage tank (50) is housed in the receiving cavity, and one receiving cavity corresponds to at least one gas storage tank (50).

2. The compressed air distributed energy storage device according to claim 1, characterized in that, The lifting assembly includes a support rod (41) extending along the height direction of the housing (10). The support rod (41) is adapted to move along the height direction of the housing (10). The support rod (41) is provided with a plurality of first support parts along its own extension direction. The partition (30) is provided with a second support part, which is rotatably supported on the top of the first support part.

3. The compressed air distributed energy storage device according to claim 2, characterized in that, The first support part is constructed as a ball head (42), and the second support part is constructed as a mating groove. The partition (30) is sleeved on the support rod (41) through the mating groove. The inner diameter of the mating groove is smaller than the diameter of the ball head (42).

4. The compressed air distributed energy storage device according to claim 2, characterized in that, A receiving cavity is defined between two adjacent partitions (30). A plurality of mounting slots (31) open toward the receiving cavity are provided on the partition (30) above the receiving cavity. A wedge block (32) is movably connected in the mounting slot (31). The plurality of wedge blocks (32) correspond to a plurality of gas tanks (50). The wedge block (32) is adapted to move along the thickness direction of the partition (30) and can selectively receive or protrude from the mounting slot (31). The inclined surface of the wedge block (32) is set away from the lifting assembly. A protruding anti-collision rubber ring (51) is provided on the outer peripheral wall of the gas tank (50). The side of the wedge block (32) facing the lifting assembly is adapted to stop against the anti-collision rubber ring (51) in the width direction of the housing (10).

5. The compressed air distributed energy storage device according to claim 4, characterized in that, The partition (30) is provided with a baffle (33) at one end near the lifting assembly. The baffle (33) is adapted to abut against the multiple gas tanks (50) in the width direction of the housing (10). The wedge block (32) is provided with a limiting groove (321) that opens toward the gas tank (50). The inner wall of the limiting groove (321) is adapted to abut against a portion of the outer peripheral wall of the gas tank (50).

6. The compressed air distributed energy storage device according to claim 5, characterized in that, The partition (30) is provided with a movable channel communicating with the mounting groove (31). A wedge plate (36) is movably provided in the movable channel. The wedge plate (36) can move to selectively cooperate with the wedge block (32), thereby driving the wedge block (32) to be received in the mounting groove (31).

7. The compressed air distributed energy storage device according to claim 6, characterized in that, A reset spring (35) is provided on the side of the wedge block (32) away from the receiving cavity, and the free end of the reset spring (35) is connected to the inner wall of the mounting groove (31).

8. The compressed air distributed energy storage device according to claim 1, characterized in that, It also includes a compression unit and a power generation unit. The compression unit is used to generate high-pressure gas. Multiple gas storage tanks (50) are jointly constructed as a gas storage module. The gas storage module and the high-pressure common rail system are jointly constructed as an energy storage unit. Multiple gas storage tanks (50) are connected in parallel through the high-pressure common rail system. The energy storage unit is connected to the compression unit through the high-pressure common rail system. The power generation unit is connected to the energy storage unit through the high-pressure common rail system. The power generation unit is used to output electrical energy.

9. The compressed air distributed energy storage device according to claim 8, characterized in that, The housing (10) includes a top plate, a side plate, a photovoltaic module and a deployment assembly. The deployment assembly is connected between the top plate and the side plate. The photovoltaic module is disposed outside the side plate and / or the top plate. The side plate includes a rotating plate pivotally connected to the top plate. The deployment assembly is a hydraulic assembly, with one end connected to the rotating plate and the other end connected to the top plate. The rotating plate is opened and closed by rotating the deployment assembly downwards.

10. The compressed air distributed energy storage device according to claim 8, characterized in that, It also includes a control unit, which includes a central controller, a regulation component, and a management module that are interconnected. The regulation component is located in the compression unit, the power generation unit, and the energy storage unit. The regulation component acquires the operating information of the compression unit, the power generation unit, and the energy storage unit. The management module generates management information based on the operating information. The central controller generates control commands based on the management information. The regulation component regulates the compression unit, the power generation unit, and the energy storage unit based on the control commands.

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