A gravity energy storage system for industrial automation

Abstract

The present invention provides a gravity energy storage system for industrial automation, which includes a number of heavy blocks, a deep wellbore for the vertical movement of the heavy blocks, a motor located outside the wellhead of the deep wellbore, a number of shallow wellbores, a main transfer track for transporting the heavy blocks connecting the deep wellbore and the shallow wellbores, and a number of transfer devices; a steel cable is wound around the output shaft of the motor, and the lower end of the steel cable is connected to a support platform in the deep wellbore. By setting one deep wellbore and a number of shallow wellbores, after the heavy blocks store gravitational potential energy, the number of heavy blocks are dispersed and stored in a number of shallow wellbores, reducing energy loss, and the number of deep wellbores can be reduced, improving the popularization and application of the gravity energy storage system; moreover, the transportation of the heavy blocks between the deep wellbore and the shallow wellbores is realized by the main transfer track and the transfer devices, without manual assistance, which can effectively improve the automation process of gravity energy storage, improve the economy of energy conversion, and reduce the labor cost of system operation.

Description

Technical Field

[0001] The present invention belongs to the technical field of gravity energy storage, and particularly relates to an industrial automation gravity energy storage system. Background Art

[0002] With the development of the national strategic goals of "carbon peak and carbon neutrality", gravity energy storage technology has promoted the construction of a clean, low-carbon, safe and efficient new energy system. It has the advantages of flexible layout, strong universality, high energy storage efficiency (80%-90%), and long operation time (30-50 years).

[0003] CN202010199858.0 discloses a post-mining abandoned shaft gangue gradient gravity energy storage system, which uses two abandoned mine shafts as energy storage and release channels and uses gangue as mass blocks to realize the secondary utilization of abandoned mine shafts and gangue, which can greatly reduce the initial cost. However, the construction of underground connecting roads and underground garages also requires huge amounts of manpower and material resources, increasing costs. Moreover, a set of gravity energy storage system requires two abandoned mine shafts, which is subject to certain limitations in popularization. In addition, the inconsistent weights of gangue greatly affect the stability of power output. Summary of the Invention

[0004] The present invention aims to solve the technical problems existing in the prior art, and the object of the present invention is to provide an industrial automation gravity energy storage system.

[0005] To achieve the above object, the present invention adopts the following technical solution: An industrial automation gravity energy storage system includes a number of heavy blocks with equal weight and height that can be vertically stacked, a deep shaft for the vertical movement of the number of heavy blocks, a motor located outside the wellhead of the deep shaft, a number of shallow shafts for dispersedly storing the number of heavy blocks, a main transfer track for connecting the deep shaft and the shallow shafts and used for transporting heavy blocks, and a number of transfer devices; support platforms for supporting heavy blocks are provided in both the deep shaft and the shallow shafts; a steel wire rope is wound around the output shaft of the motor, and the lower end of the steel wire rope is connected to the support platform in the deep shaft. The number of heavy blocks can be threaded through the steel wire rope and stacked on the support platform below it. The number of heavy blocks can freely fall or be lifted upward in the deep shaft together with the support platform; the transfer devices include a deep well transfer device provided at the wellhead of the deep shaft and a shallow well transfer device provided at each shallow shaft. The deep well transfer device can transfer and transport heavy blocks between the support platform in the deep shaft and the main transfer track connected to the deep shaft, and the shallow well transfer device can transfer and transport heavy blocks between the support platform in the shallow shaft and the main transfer track connected to the shallow shaft.

[0006] In the above technical solution, during the peak electricity consumption period, the heavy block freely falls from top to bottom in the deep wellbore, driving the motor to generate electricity and store energy. During the low electricity consumption period, the heavy block is lifted from bottom to top in the deep wellbore to store the gravitational potential energy of the heavy block. Moreover, during the low electricity consumption period, the gravity energy storage system also needs to load and unload the heavy block. By setting a deep wellbore and several shallow wellbores in the present invention, after the heavy block stores gravitational potential energy, several heavy blocks are dispersed and stored in several shallow wellbores, reducing energy loss and being able to reduce the number of deep wellbores, improving the popularization and application of the gravity energy storage system; and the transportation of the heavy block between the deep wellbore and the shallow wellbore is realized by the main transmission track and the transmission device, without manual auxiliary handling, which can effectively improve the automation process of gravity energy storage, improve the economy of energy conversion, and reduce the labor cost of system operation.

[0007] In a preferred embodiment of the present invention, the motor is a magnetic levitation motor, which can be used as a magnetic levitation motor to consume electricity for driving, or can be used as a magnetic levitation generator to generate electricity driven by the falling of the heavy block; and / or the number of motors is two, and the two motors are symmetrically distributed along the radial direction of the deep wellbore on both sides of the deep wellbore, and the output shafts of the two motors are fixedly connected coaxially.

[0008] In the above technical solution, the magnetic levitation motor can generate electricity and consume electricity for driving, without the need to separately set a power generation device, simplifying the system structure; setting two motors can improve the stability when the heavy block rises and extend the service life of the motor output shaft.

[0009] In a preferred embodiment of the present invention, a transmission branch track is also connected in parallel on the main transmission track, and the end of the transmission branch track far from the main transmission track is connected to a shallow wellbore. A shallow well transmission device capable of transferring and transporting the heavy block between the support platform of the shallow wellbore and the main transmission track connected to the shallow wellbore is also provided at the wellhead of the shallow wellbore. A track transmission device for transferring and transporting the heavy block between the two is provided at the starting end where the transmission branch track is connected to the main transmission track.

[0010] In the above technical solution, by setting the transmission branch track, the energy storage system can be provided with more shallow wellbores, and thus some shallower foundation pits can be constructed as shallow wellbores, reducing the comprehensive cost of constructing shallow wellbores.

[0011] In a preferred embodiment of the present invention, the support platform is an elastically deformable structure that can be vertically telescoped. When the support platform is in a natural state, the support platform can partially extend outside the wellhead, and the elastic modulus of the support platform is equal to the ratio of the weight of the heavy block to the height of the heavy block.

[0012] In the above technical solution, when the support platform is loaded with the heavy block, the descending height of the support platform is consistent with the cumulative height of the heavy block, and the upper surface of the uppermost heavy block always extends outside the upper surface of the wellhead of the deep wellbore (or shallow wellbore), facilitating the smooth transfer and transportation of the heavy block between the deep wellbore and the deep well transmission device (or shallow wellbore and the front well transmission device).

[0013] In a preferred embodiment of the present invention, the supporting platform includes an upper gasket and a lower gasket arranged oppositely, and a spring located between the upper gasket and the lower gasket. A plurality of heavy blocks can be stacked on the upper gasket. The upper end of the spring is connected to the upper gasket, and the lower end of the spring is connected to the lower gasket. The supporting platform in the deep wellbore further includes a penetrating rod fixedly connected to the middle of the lower gasket. The upper end of the penetrating rod passes through the through hole in the middle of the upper gasket and is connected to the lower end of the steel rope. The heavy blocks can be penetrated through the penetrating rod. A smooth metal ring is fixedly connected in the through hole of the upper gasket. The penetrating rod passes through the smooth metal ring and can slide vertically therein.

[0014] In the above technical solution, when the heavy blocks are placed on the supporting platform, the heavy blocks in the shallow wellbore are located on the upper gasket, and the heavy blocks in the deep wellbore are located on the upper gasket and penetrated through the penetrating rod. The heavy blocks move downward as a whole by compressing the spring by one heavy block height, ensuring that the upper surface of the uppermost heavy block is always located outside the wellhead of the deep wellbore (or shallow wellbore); when the heavy blocks leave the supporting platform, under the action of the spring, the supporting platform pushes all the heavy blocks upward, ensuring that the upper surface of the uppermost heavy block is always located outside the wellhead of the deep wellbore (or shallow wellbore).

[0015] In another preferred embodiment of the present invention, the heavy blocks further have a plurality of stepped holes vertically penetrating therethrough with the upper end larger than the lower end.

[0016] In the above technical solution, by providing the stepped holes, during the process of the heavy blocks falling from top to bottom, the heavy blocks are subjected to greater air resistance, reducing the increase in kinetic energy of the heavy blocks, thereby reducing the damage to the steel rope and the output shaft of the motor; moreover, during the process of the heavy blocks lifting from bottom to top, the heavy blocks are of a hollow structure, reducing air resistance and lowering power consumption.

[0017] In another preferred embodiment of the present invention, the heavy blocks all have a central axis hole vertically penetrating therethrough in the middle, and the heavy blocks are also horizontally provided with notches communicating with the central axis hole. The steel rope can be located in the central axis hole through the notches.

[0018] In another preferred embodiment of the present invention, a direction adjusting device is further provided between the deep wellbore and the main transmission track. The direction adjusting device can rotate the heavy blocks so that their notches are aligned with the steel rope. The deep well transmission device can transfer and convey the heavy blocks between the supporting platform in the deep wellbore and the direction adjusting device. The transmission device further includes a far well transmission device capable of transferring and conveying the heavy blocks between the direction adjusting device and the main transmission track.

[0019] In the above technical solution, since the heavy blocks move on the main transmission track and the branch transmission track by relying on friction, the notches of the heavy blocks may not be aligned with the steel rope. By providing a direction adjusting device to adjust the direction of the notches of the heavy blocks, it is ensured that the notches of each heavy block can be aligned with the steel rope, enabling the heavy blocks to be smoothly embedded on the steel rope without manual direction adjustment, reducing labor costs.

[0020] In another preferred embodiment of the present invention, the direction adjusting device includes a rotating ring disposed adjacent to the outer side of the deep wellbore wellhead. The heavy block can be placed on the rotating ring. Above the rotating ring, there is a permanent magnet located between the deep well transmission device and the far well transmission device. A magnet is embedded in the heavy block, and the permanent magnet can generate a magnetic force on the magnet to cause the heavy block to rotate. The direction adjusting device further includes a magnetometer for detecting the magnetic field strength and direction, and a rotating shaft for pushing the heavy block on the rotating ring into the deep well transmission device. The magnetic induction line threshold output end of the magnetometer is connected to the enabling end of the rotating shaft.

[0021] In the above technical solution, by arranging the permanent magnet and the magnet, the direction of the heavy block on the rotating ring is adjusted. By arranging the magnetometer and the rotating shaft, after the magnetometer senses the magnetic induction line threshold, the rotating shaft is controlled to push the heavy block onto the transmission device, realizing the automatic direction adjustment of the heavy block.

[0022] In another preferred embodiment of the present invention, the deep well transmission device includes two first support seats symmetrically arranged on both sides of the deep wellbore wellhead. A row of vertically arranged columnar first rollers that can rotate are rotatably installed on the inner sides of the two first support seats facing each other. The first rollers can rotate self - sufficiently. A row of first rollers are arranged in sequence from the deep wellbore side to the main transmission track with the structure of: the upper surface radius is large and the lower surface radius is small, then the upper surface radius is equal to the lower surface radius, and finally the upper surface radius is small and the lower surface radius is large. And / or the shallow well transmission device includes two second support seats symmetrically arranged on both sides of the shallow wellbore wellhead. An active block is horizontally rotatably connected in the second support seat. A floating spring is fixedly connected to the outer end of the active block, and the outer end of the floating spring is fixedly connected to the second support seat. A row of vertically arranged columnar second rollers that can rotate are rotatably installed on the inner sides of the two active blocks facing each other. The second rollers can rotate self - sufficiently. A row of second rollers are arranged in sequence from the shallow wellbore side to the main transmission track with the structure of: the upper surface radius is large and the lower surface radius is small, then the upper surface radius is equal to the lower surface radius, and finally the upper surface radius is small and the lower surface radius is large.

[0023] In the above technical solution, by reasonably designing the sizes of a row of first rollers of the deep well transmission device, when the heavy block is transferred from the deep wellbore to the main transmission track, the heavy block moves upward while moving forward, and when the heavy block is transferred from the main transmission track to the deep wellbore, the heavy block moves downward while moving forward, ensuring the smooth transmission of the heavy block between the deep wellbore and the main transmission track. By reasonably designing the sizes of a row of second rollers of the shallow well transmission device, when the heavy block is transferred from the shallow wellbore to the branch transmission track, the heavy block moves upward while moving forward, and when the heavy block is transferred from the branch transmission track to the shallow wellbore, the heavy block moves downward while moving forward, ensuring the smooth transmission of the heavy block between the shallow wellbore and the branch transmission track. Moreover, the shallow well transmission device is also provided with floating springs, which can reduce the machining and installation accuracy of the parts of the shallow well transmission device and avoid pinching the heavy block by the two rows of second rollers of the shallow well transmission device.

[0024] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The above and / or additional aspects and advantages of the present invention will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0026] Figure 1 is a schematic three-dimensional structure diagram of an industrial automation gravity energy storage system according to Embodiment 1 of the present application.

[0027] Figure 2 is a schematic top view structure diagram of an industrial automation gravity energy storage system according to Embodiment 1 of the present application.

[0028] Figure 3 is a schematic structure diagram of the heavy block in Embodiment 1 of the present application.

[0029] Figure 4 is a schematic structure diagram of a gravity energy storage system based on electromagnetic technology according to Embodiment 2 of the present application.

[0030] Figure 5 is a schematic structure diagram of the heavy block coil, the wellbore coil and the closed coil in Embodiment 2 of the present application.

[0031] Figure 6 is a schematic front view structure diagram inside the motor in Embodiment 2.

[0032] Figure 7 is a schematic structure diagram of the motor in the inner side view direction in Embodiment 2.

[0033] The reference numerals in the drawings of the specification include: motor 10, output shaft 101 of the motor, cylindrical housing 111, circular outer cover 112, perforation 113, locking bolt 114, rotor 12, disc 121, annular permanent magnet 122, stator assembly 13, stator 131, silicon steel sheet 132, stator coil 133, armature 134, convex-shaped permanent magnet 141, concave-shaped permanent magnet 142, first cylindrical permanent magnet 143, second cylindrical permanent magnet 144, steel rope 20, limit block 21, weight 30, trapezoidal hole 301, notch 302, central shaft hole 303, magnet 304, uppermost weight 31, uppermost weight coil 311, middle weight 32, middle weight coil 321, lowermost weight 33, lowermost weight coil 331, convex nail 34, concave hole 35, power storage unit 36, metal contact 37, deep wellbore 41, uppermost wellbore coil 411, middle wellbore coil 412, lowermost wellbore coil 413, closed coil 414, wire 4141, power source 415, shallow wellbore 42, deep well transmission device 50, first support base 51, first roller 52, shallow well transmission device 60, second support base 61, second roller 62, movable block 63, floating spring 64, bolt 65, main transmission track 71, branch transmission track 72, supporting platform 80, upper gasket 81, smooth metal ring 82, spring 83, penetrating rod 84, lower gasket 85, steering device 90, rotating ring 91, permanent magnet 92, magnetometer 93, rotating shaft 94. Detailed implementation manners

[0034] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation to the present invention.

[0035] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "vertical", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0036] In the description of the present invention, unless otherwise specified and defined, it should be noted that the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection, or it can be the communication inside two components. It can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0037] Embodiment 1

[0038] This embodiment provides a gravity energy storage system for industrial automation. As Figure 1 - Figure 2 shown, in a preferred embodiment, the gravity energy storage system includes a plurality of weights 30 with equal weight and height that can be stacked vertically, a deep wellbore 41 for the vertical movement of the plurality of weights 30, a motor 10 located outside the wellhead of the deep wellbore 41, a plurality of shallow wellbores 42 for dispersedly storing the plurality of weights 30, a main transfer track 71 connecting the deep wellbore 41 and the shallow wellbores 42 for transferring the weights 30, and a plurality of transfer devices. The main transfer track 71 can be a conveyor belt, a conveyor roller, or a conveyor chain in the prior art that relies on friction to transfer items.

[0039] Among them, a support platform 80 for supporting the weights 30 is provided in both the deep wellbore 41 and the shallow wellbores 42. A steel rope 20 is wound around the output shaft 101 of the motor. The steel rope 20 is a high-strength steel rope. The lower end of the steel rope 20 is connected to the support platform 80 inside the deep wellbore 41. The plurality of weights 30 can be threaded through the steel rope 20 and stacked on the support platform 80 below it. The plurality of weights 30 can move in free fall or be lifted upward in the deep wellbore 41 together with the support platform 80.

[0040] Among them, the transfer device includes a deep well transfer device 50 provided at the wellhead of the deep wellbore 41 and a shallow well transfer device 60 provided at each shallow wellbore 42. The deep well transfer device 50 can transfer and convey the weights 30 between the support platform 80 in the deep wellbore 41 and the main transfer track 71 connected to the deep wellbore 41. The shallow well transfer device 60 can transfer and convey the weights 30 between the support platform 80 in the shallow wellbore 42 and the main transfer track 71 connected to the shallow wellbore 42.

[0041] In the present invention, the motor 10 is a magnetic levitation motor. The motor 10 can be used as a magnetic levitation motor for power consumption drive or as a magnetic levitation generator 10 driven by the descent of the weights 30 for power generation. Preferably, the number of motors 10 is two. The two motors 10 are symmetrically distributed on both sides of the deep wellbore 4 along the radial direction of the wellbore diameter of the deep wellbore 41. The output shafts 101 of the two motors are coaxially fixed; specifically, the two motors 10 can share one output shaft, or the output shafts 101 of the two motors are separately provided and then fixed together as a whole.

[0042] With such a technical solution, during the peak electricity consumption period, several heavy blocks 30 freely fall from top to bottom in the deep wellbore 41, driving the motor 10 to generate electricity and store energy. In this process, the gravitational potential energy of the heavy blocks 30 is converted into electrical energy. During the low electricity consumption period, the motor 10 is powered on, and the motor 10 drives the steel rope 20 to wind, and the steel rope 20 drives several heavy blocks 30 to lift from bottom to top in the deep wellbore 41 to store the gravitational potential energy of the heavy blocks 30. Moreover, during the low electricity consumption period, the gravity energy storage system also needs to load and unload the heavy blocks 30.

[0043] Before the heavy blocks 30 are loaded, several heavy blocks 30 are stored dispersedly in several shallow wellbores 42. When the heavy blocks 30 are loaded, the heavy blocks 30 overlap on the supporting platform 80 of the shallow wellbore 42, and the supporting platform 80 pushes the heavy blocks 30 into the shallow well transfer device 60. The heavy blocks 30 are transferred by the shallow well transfer device 60 to the main transfer track 71, and the main transfer track 71 drives the heavy blocks 30 to move into the deep well transfer device 50, and then the deep well transfer device 50 embeds the heavy blocks 30 onto the steel rope 20 and on the supporting platform 80 of the deep wellbore 41.

[0044] When the heavy blocks 30 are unloaded, the supporting platform 80 in the deep wellbore 41 pushes the heavy blocks 30 into the deep well transfer device 50, and the heavy blocks 30 are then transferred by the deep well transfer device 50 to the main transfer track 71, and the main transfer track 71 drives the heavy blocks 30 to move into the shallow well transfer device 60, and then the shallow well transfer device 60 transfers and conveys the heavy blocks 30 to the supporting platform 80 in the shallow wellbore 42.

[0045] In the present invention, the depth of the deep wellbore 41 is very deep, up to 1000 m. The cumulative height of several heavy blocks 30 in the deep wellbore 41 is several tens of meters, such as 20 m. Several heavy blocks 30 store energy in the deep wellbore 41, and the shallow wellbores 42 are used to store the heavy blocks 30 dispersedly. The cumulative height of the heavy blocks 30 in multiple shallow wellbores 42 is equal to the cumulative height of the heavy blocks 30 in a single deep wellbore 41 for the gravity energy storage process. Since the number of deep wellbores 41 is scarce and the engineering difficulty is large, it can be realized by using the abandoned wellbores on site. The construction difficulty of the shallow wellbores 42 is small and can be built artificially in large quantities, and a large number of heavy blocks 30 that need to store gravity energy can be stored dispersedly.

[0046] In the present invention, preferably, the wellhead of the deep wellbore 41 is repaired to be 5 m or 10 m higher than the ground to form a horizontal drop with the ground, and this drop height can be used as the cumulative height when the heavy blocks 30 are stored. The shallow wellbore 42 can be a shallow foundation pit or a cement cylindrical structure constructed on the ground. This cylindrical structure is based on the ground and has the same drop height as the wellhead of the deep wellbore 41 and the ground. At the same time, in order to save materials and ensure that the stored heavy blocks 30 do not tip over, in the vertical direction of the cylindrical structure, there are large-area hollow-outs to form a structure with multiple arc-shaped plates surrounding the heavy blocks 30.

[0047] Such as Figure 1 AndFigure 2 As shown, in another preferred embodiment, a transfer branch track 72 is also connected in parallel to the transfer main track 71. The transfer branch track 72 has the same structure as the transfer main track 71 and also relies on friction to transfer articles. The end of the transfer branch track 72 away from the transfer main track 71 is connected to a shallow wellbore 42. At the wellhead of the shallow wellbore 42, there is also provided a shallow well transfer device 60 capable of transferring and conveying the heavy block 30 between the support platform 80 of the shallow wellbore 42 and the transfer main track 71 connected to the shallow wellbore 42. At the starting end where the transfer branch track 72 is connected to the transfer main track 71, there is provided a track transfer device for transferring and conveying the heavy block 30 between the two. The track transfer device has the same structure as the deep well transfer device 50.

[0048] It should be noted that the transfer and conveyance of the heavy block 30 between the shallow wellbore 42 and the transfer branch track 72, and the transfer and conveyance of the heavy block 30 between the transfer main and branch tracks and the transfer branch track 72 are the same as those described above and will not be elaborated here.

[0049] As Figure 2 shown, in the present invention, the transfer main track 71 is distributed in a fan shape, the fan blades are circular arcs, and a plurality of circular arc-shaped transfer branch tracks 72 can be distributed on the transfer main track 71. The center lines of the transfer main track 71 and the transfer branch track 72 intersect with the centers of the deep wellbore 41 and the shallow wellbore 42.

[0050] As Figure 3 shown, in the present invention, the heavy block 30 can be circular, square or strip-shaped. For example, the heavy block 30 is circular. A central axis hole 303 vertically penetrating is provided in the middle of the heavy block 30. The heavy block 30 is also transversely (radially) provided with a notch 302 communicating with the central axis hole 303. The steel rope 20 can be located in the central axis hole 303 through the notch 302. Preferably, a plurality of stepped holes 301 with the upper end larger than the lower end and vertically penetrating are also provided inside the heavy block 30, making the heavy block 30 a hollow structure. Thus, during the process of the heavy block 30 falling from top to bottom, the heavy block 30 is subjected to greater air resistance, reducing the kinetic energy increment of the heavy block 30, thereby reducing the damage to the steel rope 20 and the output shaft 101 of the motor; during the process of the heavy block 30 lifting from bottom to top, the heavy block 30 is a hollow structure, reducing air resistance and lowering power consumption.

[0051] In the present invention, the lower end of the supporting platform 80 in the shallow wellbore 42 abuts against the bottom of the shallow wellbore 42, and the supporting platform 80 in the deep wellbore 41 can be suspended in the deep wellbore 41 by a steel wire rope 20. The supporting platform 80 is an elastic structure that can be vertically telescoped. When the supporting platform 80 is in its natural state (i.e., there is no weight block 30 on the supporting platform 80), the supporting platform 80 can partially extend out of the wellhead of the deep wellbore 41 / shallow wellbore 42. For example, when the supporting platform 80 is in its natural state, the upper surface of the supporting platform 80 is higher than the upper surface of the wellhead of the deep wellbore 41 / shallow wellbore 42 by a height of 0.5 times the weight block 30. The elastic modulus of the supporting platform 80 is equal to the ratio of the weight of the weight block 30 to the height of the weight block 30, so that when the supporting platform 80 is loaded by the weight block 30, the descending height of the supporting platform 80 is consistent with the cumulative height of the weight block 30, and the upper surface of the uppermost weight block 31 always remains higher than the upper surface of the wellhead of the deep wellbore 41 / shallow wellbore 42 by a height of 0.5 times the weight block 30.

[0052] Specifically, as Figure 1 shown, the supporting platform 80 in the shallow wellbore 42 includes an upper gasket 81 and a lower gasket 85 arranged oppositely, and a spring 83 located between the upper gasket 81 and the lower gasket 85. The spring 83 is a columnar spring arranged vertically. A plurality of weight blocks 30 can be stacked on the upper gasket 81. The upper end of the spring 83 is welded to the upper gasket 81, and the lower end of the spring 83 is welded to the lower gasket 85.

[0053] As Figure 1 shown, the supporting platform 80 in the deep wellbore 41 further includes a vertically arranged piercing rod 84 welded to the middle of the lower gasket 85. A plurality of springs 83 are uniformly arranged on the outer circumference of the piercing rod 84. The upper end of the piercing rod 84 passes through a through hole in the middle of the upper gasket 81 and is connected (such as hinged) to the lower end of the steel wire rope 20. The weight block 30 can be sleeved on the piercing rod 84. Preferably, a smooth metal ring 82 is fixedly connected in the through hole of the upper gasket 81, and the piercing rod 84 passes through the smooth metal ring 82 and can slide vertically therein.

[0054] Since the weight block 30 moves on the main transfer track 71 and the branch transfer track 72 by relying on friction, the notch 302 of the weight block 30 may not be aligned with the steel wire rope 20. As Figure 1 and Figure 2 shown, in another preferred embodiment of the present invention, a direction adjusting device 90 is further provided between the deep wellbore 41 and the main transfer track 71. The direction adjusting device 90 can rotate the weight block 30 to align its notch 302 with the steel wire rope 20. The deep well transfer device 50 can transfer and convey the weight block 30 between the supporting platform 80 in the deep wellbore 41 and the direction adjusting device 90. The transfer device further includes a far well transfer device that can transfer and convey the weight block 30 between the direction adjusting device 90 and the main transfer track 71. The structure of the far well transfer device is the same as that of the deep well transfer device 50.

[0055] Specifically, as Figure 1 - Figure 3As shown in the figure, the steering device 90 includes a rotating ring 91 disposed adjacent to the outer side of the wellhead of the deep wellbore 41. The weight 30 can be placed on the rotating ring 91. Above the rotating ring 91, there is a bar-shaped permanent magnet 92 located between the deep well transmission device 50 and the far well transmission device. The permanent magnet 92 extends in the front-rear direction. A magnet 304 is embedded in the weight 30. The magnet 304 is a bar-shaped permanent magnet, and the magnet 304 is perpendicular to the notch 302. The permanent magnet 92 can generate a magnetic force on the magnet 304 to rotate the weight 30. The steering device 90 further includes a magnetometer 93 for detecting the magnetic field strength and direction, and a rotating shaft 94 for pushing the weight 30 on the rotating ring 91 into the deep well transmission device 50. The magnetic induction line threshold output end of the magnetometer 93 is connected to the enabling end of the rotating shaft 94.

[0056] With the foregoing technical solution, when the weight 30 enters the deep wellbore 41 from the main transmission track 71, the weight 30 is conveyed by the far well transmission device to the rotating ring 91. The magnet 304 on the weight 30 is attracted by the permanent magnet 92 to adjust its direction. After the magnetometer 93 senses the magnetic induction line threshold (at this time, the permanent magnet 92 is parallel to the magnet 304, and the notch 302 of the weight 30 is on the left side), the rotating shaft 94 is controlled to insert into the central axis hole 303 of the weight 30, and the weight 30 is guided into the deep well transmission device 50, and then conveyed by the deep well transmission device 50 to the supporting platform 80 of the deep wellbore 41.

[0057] As Figure 1 and Figure 2 As shown in the figure, in the present invention, the deep well transmission device 50 includes two first support seats 51 symmetrically arranged on the front and rear sides of the wellhead of the deep wellbore 41. The two first support seats 51 are respectively located on both sides of the main transmission track 71. A row of vertically arranged table-columnar first rollers 52 are rotatably installed on the opposite inner sides of the two first support seats 51. The first rollers 52 can rotate self - and the position of the center line of the first rollers 52 is fixed. A row of first rollers 52 are arranged in sequence from the deep wellbore 41 side to the main transmission track 71 with the structure of having a larger upper surface radius and a smaller lower surface radius, then an upper surface radius equal to the lower surface radius, and finally a smaller upper surface radius and a larger lower surface radius. And from the deep wellbore 41 side to the main transmission track 71, the upper surface of a row of first rollers 52 gradually decreases and the lower surface gradually increases.

[0058] By adopting the above technical solution, when the weight block 30 is transferred from the deep well shaft 41 to the main transmission track 71, under the action of the spring 83 of the supporting platform 80, the uppermost weight block 30 is pushed into the first roller 52 of the deep well transmission device 50 with a larger upper surface radius and a smaller lower surface radius. The first roller 52 rotates, and under the action of the friction force of the two rows of first rollers 52, the weight block 30 moves toward the rotating ring 91. When it passes through the first roller 52 with a smaller upper surface radius and a larger lower surface radius, the weight block 30 gradually rises and detaches from the through rod 84 and the steel rope 20, and then falls onto the rotating ring 91; after the above stages, the second weight block 30 pushes the first weight block 30 into the far well transmission device; the process of transmitting the weight block 30 from the far well transmission device to the transmission main track 71 is the same as the aforementioned transmission from the deep well transmission device 50 to the rotating ring 91, and will not be repeated here.

[0059] It should be noted that the process of transferring the weight 30 from the main transfer track 71 to the supporting platform 80 of the deep shaft 41 is opposite to the above process and will not be described in detail here.

[0060] like Figure 1 and Figure 2 As shown, in the present invention, the shallow well transmission device 60 includes two second support seats 61 symmetrically arranged on both sides of the wellhead of the shallow well shaft 42. The two second support seats 61 are respectively located on both sides of the transmission main track 71 / transmission branch track 72. The second support seat 61 is connected to a movable block 63 that is horizontally rotatable through a vertically arranged rotating shaft 65. The outer end of the movable block 63 is fixedly connected to a floating spring 64. The outer end of the floating spring 64 is fixedly connected to the second support seat 61. The rotating shaft 65 is a bolt that passes through the mid-vertical line of the movable block 63 and is threadedly connected to the second support seat 61. The bolt can serve as a rotating shaft and can also fix the movable block 63. A row of vertically arranged column-shaped second rollers 62 are rotatably installed on the opposite inner sides of the two movable blocks 63. The second rollers 62 can rotate on their own. The position of the center line of the second rollers 62 is not fixed. The second rollers 62 rise and fall due to the rise and fall of the movable block 63. A row of second rollers 62 are arranged in sequence from the side of the shallow well 42 to the transmission main track 71 / transmission branch track 72 in the following order: the upper surface radius is large and the lower surface radius is small, to the upper surface radius is equal to the lower surface radius, and finally the upper surface radius is small and the lower surface radius is large. The upper surface of a row of second rollers 62 gradually decreases and the lower surface gradually increases from the side of the shallow well 42 to the transmission main track 71 / transmission branch track 72.

[0061] With the above technical solution, when the heavy block 30 is transferred from the shallow wellbore 42 to the main transfer track 71 / the branch transfer track 72, under the action of the spring 83 of the supporting platform 80, the uppermost heavy block 30 is pushed onto the second roller 62 with a larger upper surface radius and a smaller lower surface radius on the upper surface of the shallow well transfer device 60. The second roller 62 rotates, and under the frictional force of the two rows of second rollers 62, the heavy block 30 moves forward. When it reaches the second roller 62 with a smaller upper surface radius and a larger lower surface radius, the heavy block 30 gradually lifts upward and finally falls off the shallow well transfer device 60 and enters the main transfer track 71 / the branch transfer track 72. Among them, when the previous heavy block 30 has not fallen off the shallow well transfer device 60, the distance between the second rollers 62 on the side close to the shallow wellbore 42 is small and not sufficient to continuously transfer the second heavy block 30. As the supporting platform 80 pushes up the second heavy block 30, the distance between the second rollers 62 on the side close to the shallow wellbore 42 is further enlarged, enabling the heavy block 30 to be transferred normally, ensuring the interval distance of the transfer of the heavy block 30, and providing time for the direction adjustment device 90 to adjust the direction of the heavy block 30.

[0062] Embodiment 2

[0063] This embodiment provides a gravity energy storage system based on electromagnetic technology, as Figure 4 and Figure 5 shown. In this embodiment, the gravity energy storage system includes a number of vertically stackable heavy blocks 30, a deep wellbore 41 for allowing the number of heavy blocks 30 to move vertically, and a motor 10 located outside the wellhead of the deep wellbore 41. A steel rope 20 is wound around the output shaft 101 of the motor. A number of heavy blocks 30 can be overlapped and threaded on the steel rope 20. When the heavy blocks 30 move from top to bottom, they can drive the output shaft 1 of the motor to rotate and generate electricity. When the number of heavy blocks 30 is greater than or equal to three, the number of heavy blocks 30 is divided into the uppermost heavy block 31, the lowermost heavy block 33, and the intermediate heavy block 32 located between the uppermost heavy block 31 and the lowermost heavy block 33.

[0064] A heavy block coil is also arranged outside or inside the heavy block 30. When the number of heavy block coils is greater than or equal to three, the number of heavy block coils is divided into the uppermost heavy block coil 311, the lowermost heavy block coil 331, and the intermediate heavy block coil 321 located between the uppermost heavy block coil 311 and the lowermost heavy block coil 331; the heavy block coil is directly or indirectly connected to a power storage unit 36. For example, the uppermost heavy block coil 311 is connected to the power storage unit 36, or indirectly connected to the power storage unit 36 through a circuit on another heavy block 30.

[0065] A number of vertically arranged wellbore coils are disposed within the deep wellbore 41. When the number of wellbore coils is greater than or equal to three, the number of wellbore coils is divided into the uppermost wellbore coil 411, the lowermost wellbore coil 413, and the intermediate wellbore coil 412 located between the uppermost wellbore coil 411 and the lowermost wellbore coil 413; the weight coil can move vertically relative to the wellbore coil to cut the wellbore coil to generate an induced current and store it in the power storage unit 36.

[0066] In this embodiment, the motor 10 is also a magnetic levitation motor. The motor 10 can be used as a magnetic levitation motor for power consumption drive, or can be used as a magnetic levitation generator 10 driven by the descent of the weight 30 for power generation. Preferably, the number of motors 10 is two, and the two motors 10 are symmetrically distributed along the radial direction of the deep wellbore 41 on both sides of the deep wellbore 41, and the output shafts 101 of the two motors are coaxially fixed; specifically, the two motors 10 can share one output shaft, or the output shafts 101 of the two motors are separately arranged and then fixed together.

[0067] Adopting such a technical solution, during the peak electricity consumption period, the steel rope 20 pays out the line, and the weight 30 is affected by the gravitational potential energy and moves from the wellhead of the deep wellbore 41 to the bottom of the wellbore, driving the output shaft 101 of the motor to rotate for power generation; at the same time, the wellbore coil is connected to the power source 415. For example, the uppermost wellbore coil 411 is connected to the power source 415. The weight coil makes a relative movement with the wellbore coil, and the weight coil cuts the magnetic induction lines generated by the wellbore coil to generate an induced current for power storage; at the same time, the wellbore coil forms a magnetic field, forming an upward electromagnetic resistance for the weight coil, reducing the kinetic energy of the weight 30, and to a certain extent, reducing the damage of the steel rope 20. During the low electricity consumption period, the motor 10 drives the steel rope 20 to wind the line to drive all the weights 30 to lift from the bottom of the deep wellbore 41 to the wellhead to store the gravitational potential energy of the weights 30.

[0068] As Figure 4 shown, in the present invention, the center of the top of the weight 30 has a non-circular protruding stud 34 protruding upward, and the bottom of the weight 30 has an upwardly protruding concave hole 35 that can fit with the stud 34, so that a plurality of weights 30 can be stably accumulated. For example, the stud 34 is a regular hexagon stud, and correspondingly, the concave hole 35 is a regular hexagon blind hole. The lower end of the steel rope 20 is fixedly connected with a limit block 21, and the top of the limit block 21 can fit with the concave hole 35 of the lowermost weight 33. The limit block 21 is a regular hexagon column iron block matching the concave hole 35. The output shaft 101 of the motor is vertically connected to the uppermost weight 31, the intermediate weight 32, the lowermost weight 33, and the limit block 21 in sequence by using the steel rope 20.

[0069] As Figure 4 and Figure 5As shown, in the present invention, on the left and right side walls of each heavy block 30, two heavy block coils in the same circuit are symmetrically arranged. The heavy block coils of all heavy blocks 30 can be vertically arranged in two rows and are in the same circuit; on the left and right sides of the deep wellbore 41, two rows of wellbore coils are also symmetrically arranged. Preferably, the two rows of wellbore coils are respectively in two circuits, and the uppermost wellbore coils 411 on both sides are respectively connected to the power supply 415.

[0070] In the present invention, as Figure 4 and Figure 5 shown, the wellbore coils are vertically arranged open "8" - shaped coils. The heavy block coils are arranged parallel to the open "8" - shaped coils, and each open "8" - shaped coil is vertically arranged with small - spacing intervals; in order to increase the electromagnetic field intensity, several open "8" - shaped coils can be composed of a large number of overlapping wires. The open "8" - shaped coil is a rectangular coil, which is divided into upper and lower parts by the perpendicular bisector of the vertical side. The upper part is flipped 180° to form two half open "8" - shaped coils with equal areas. The spacing between adjacent open "8" - shaped coils is the same as the spacing between each half open "8" - shaped coil, ensuring that the adjacent magnetic field spacings are the same. The heavy block coil on one side of the heavy block 30 is a rectangular coil, and the length and width of each half open "8" - shaped coil are equal to the length and width of the heavy block coil. The heavy block coil is arranged in parallel with a small distance from the wellbore coil.

[0071] As Figure 4 and Figure 5 shown, in the present invention, each heavy block coil has two metal contacts 37 (it should be noted that the two heavy block coils on both sides of each heavy block 30 are in the same circuit and can be connected by wires to form a coil). The uppermost heavy block coil 311 is electrically connected to the power storage unit 36 through its two metal contacts 37. The heavy block coils of the lower heavy blocks 30 can be cross - connected to the heavy block coils of the upper heavy blocks 30 through their two metal contacts 37. Specifically, the middle heavy block coil 321 can be cross - connected to the uppermost heavy block coil 311 through its two metal contacts 37, and the lowermost heavy block coil 331 can be cross - connected to the middle heavy block coil 321 through its two metal contacts 37, ensuring that the induced currents generated by all heavy block coils flow in the same direction.

[0072] As Figure 4 and Figure 5As shown, in the present invention, each wellbore coil has two metal contacts 37. The uppermost wellbore coil 411 is electrically connected to the power source 415 through its two metal contacts 37. The lower wellbore coil can be cross-connected to its upper wellbore coil through its two metal contacts 37. Specifically, the middle wellbore coil 412 can be cross-connected to the uppermost wellbore coil 411 through its two metal contacts 37, and the lowermost wellbore coil 413 can be cross-connected to the middle wellbore coil 412 through its two metal contacts 37. When the weight 30 descends, the uppermost wellbore coil 411 is connected to the power source 415, causing the adjacent semi-open "8"-shaped coils to form electromagnetic fields with opposite directions.

[0073] As Figure 1 and Figure 2 shown, in another preferred embodiment of the present invention, a plurality of sets of closed coils 414 arranged horizontally corresponding to the wellbore coils are further provided in the deep wellbore 41. One set of closed coils 414 can surround the wellbore coil and the weight coil. The plurality of sets of closed coils 414 include the uppermost closed coil corresponding to the uppermost wellbore coil 411, the middle closed coil corresponding to the middle wellbore coil 412, and the lowermost closed coil corresponding to the lowermost wellbore coil 413.

[0074] In the present invention, one set of closed coils 414 includes two closed "8"-shaped coils arranged horizontally. The two closed "8"-shaped coils rotate 180° around the center point of the deep wellbore 41 in the plane where they are located. The two closed "8"-shaped coils on the same horizontal plane are connected by two wires 4141 to control the offset during the movement of the weight 30. Specifically, when the uppermost weight 31, the middle weight 32, and the lowermost weight 33 move and deviate horizontally forward and backward, a relatively large repulsive force is generated on the half of the closed "8"-shaped coil close to the uppermost weight coil 311, the middle weight coil 321, and the lowermost weight coil 331, causing the uppermost weight 31, the middle weight 32, and the lowermost weight 33 to approach the horizontal midpoint so that the uppermost weight 31, the middle weight 32, and the lowermost weight 33 do not deviate during movement.

[0075] In this embodiment, the closed "8"-shaped coil can be formed by overlapping a large number of wires. The closed "8"-shaped coil has the same shape as the open "8"-shaped coil, but the coil of the closed "8"-shaped coil is completely closed. A number of closed "8"-shaped coils are parallel and located outside the open "8"-shaped coil, preferably outside the middle of the open "8"-shaped coil.

[0076] In this embodiment, only three heavy blocks, namely, one uppermost heavy block 31, one middle heavy block 32, and one lowermost heavy block 33, are shown. In actual operation, only two heavy blocks, i.e., one uppermost heavy block 31 and one lowermost heavy block 33, can be used, or one uppermost heavy block 31, n (n≥1) middle heavy blocks 32, and one lowermost heavy block 33 can be used.

[0077] In this embodiment, only three wellbore coils, namely, one uppermost wellbore coil 411, one middle wellbore coil 412, and one lowermost wellbore coil 413, are shown in a row of wellbore coils. In actual operation, only two wellbore coils, i.e., one uppermost wellbore coil 411 and one lowermost wellbore coil 413, can be used, or one uppermost wellbore coil 411, n (n≥1) middle wellbore coils 412, and one lowermost wellbore coil 413 can be used.

[0078] In this embodiment, only three closed coils 414 are shown. In actual operation, the number should be consistent with that of the wellbore coils.

[0079] In this embodiment, the magnetic levitation motor 10 includes a housing, a rotatable rotor 12 axially passing through the center of the housing and extending outside the housing with an output shaft, and a stator assembly 13 annularly arranged outside the periphery of the rotor 12 and fixed to the housing. A disk 121 radially extending outward is fixedly connected to the rotor 12, and an annular permanent magnet 122 cooperating with the stator assembly 13 is fixedly connected to the disk 121. The current generated by the stator assembly 13 can drive the annular permanent magnet 122 to rotate around the axis of the rotor 12 to make the rotor 12 rotate. The number of the stator assemblies 13 is multiple, and the multiple stator assemblies 13 are evenly distributed at intervals in the circumferential direction outside the periphery of the rotor 12, and the annular permanent magnets 122 are arranged in one-to-one correspondence with the stator assemblies 13; preferably, the annular permanent magnets 122 are symmetrically arranged on both end faces of the disk 121. Correspondingly, the stator assemblies 13 corresponding to the annular permanent magnets 122 are symmetrically arranged on both the left and right sides of the disk 121.

[0080] Among them, the housing includes a cylindrical shell 111 and two circular housing covers 112 located at both ends of the cylindrical shell 111. A perforation 113 is formed at the edge of the circular housing cover 112, and a locking bolt 114 is threadedly connected to the cylindrical shell 111 through the perforation 113. Central holes are formed in the centers of the two circular housing covers 112, and these central holes are used to install the rotor 12. Two motors 10 share one rotor 12, and this rotor 12 serves as the output shaft 101 of the motor. The stator assembly 13 includes a stator 131, silicon steel sheets 132, stator coils 133, and an armature 134, and the stator 131, silicon steel sheets 132, stator coils 133, and armature 134 are sequentially fixed on the inner side of the circular housing cover 112.

[0081] In the present invention, on the outer ring of the disc 121 of the rotor 12, there is a convex-shaped permanent magnet 141 that is fixedly connected thereto and protrudes radially outward. On the inner wall of the cylindrical housing 111, there is a concave-shaped permanent magnet 142 that is fixedly connected and recessed radially inward and is matched with the convex-shaped permanent magnet 141. The concave-shaped permanent magnet 142 is arranged around the convex-shaped permanent magnet 141 and is coaxial with it. There is a gap between the concave-shaped permanent magnet 142 and the convex-shaped permanent magnet 141, and the magnetic properties of the two are opposite. Among them, the aforementioned convex and concave surfaces include, but are not limited to, spherical surfaces, ellipsoidal surfaces or aspherical surfaces (such as the prism surface of a polygon, which can specifically be composed of the top surface and four side surfaces of a regular frustum of a pyramid). As long as it can simultaneously apply axial and radial magnetic forces to the rotor 12 to make the rotor 12 in a suspended state in its axial and radial directions. In this embodiment, preferably, both the convex and concave surfaces are spherical surfaces.

[0082] In the present invention, on the outer ring of the rotor 12, there is a first cylindrical permanent magnet 143 that is fixedly connected thereto. On the inner side of the circular outer shell cover 112, there is a second cylindrical permanent magnet 144 that is fixedly connected and arranged around the first cylindrical permanent magnet 143 and is coaxial with it. There is a gap between the first cylindrical permanent magnet 143 and the second cylindrical permanent magnet 144, and the magnetic properties of the two are opposite, so as to increase the magnetic force on the rotor 12 in its radial direction and make the rotor 12 more stable in the radial direction.

[0083] After the two magnetic levitation motors 10 are energized, the current will generate a moving magnetic field to drive the annular permanent magnet 122 to rotate. The rotation of the annular permanent magnet 122 drives the rotor 12 to rotate self - sufficiently. Moreover, under the action of the concave - shaped permanent magnet 142 and the convex - shaped permanent magnet 141, as well as the action of the first cylindrical permanent magnet 143 and the second cylindrical permanent magnet 144, the rotor 12 is in a suspended state, which can reduce the energy loss and noise pollution caused by friction of the rotor 12.

[0084] It should be noted that the gravity energy storage system based on electromagnetic technology in the second embodiment can be applied to the first embodiment or other gravity energy storage systems. Specifically, the structure of the magnetic levitation motor 10 in the second embodiment can be applied to the first embodiment; the structure of setting the heavy block coil on the heavy block 30 in the second embodiment can be applied to the first embodiment. Of course, the structure of the heavy block 30 in the first embodiment can also be applied to the second embodiment, that is, the structures of the heavy blocks 30 in the first and second embodiments are combined; the method of dispersedly storing a plurality of heavy blocks 30 by setting a plurality of shallow wellbores 42 in the first embodiment can be applied to the second embodiment; the structure and principle in the second embodiment of generating an induced current by setting a heavy block coil on the heavy block 30 and the heavy block 30 moving downward to cut the wellbore coil in the deep wellbore 41 and storing it in the power storage unit 36 can be applied to the first embodiment. However, it should be noted that since the connection manner between the steel rope 20 and the heavy block 30 in the second embodiment is different from that in the first embodiment, in specific applications, those skilled in the art should change the connection manner between the steel rope 20 and the heavy block 30 according to the specific situations of the first and second embodiments. This is prior art and will not be elaborated here.

[0085] In the description of this specification, the description with reference to terms such as "preferred embodiment", "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0086] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the claims and their equivalents.

Claims

1. A gravity energy storage system for industrial automation, characterized in that, It includes several heavy blocks with equal weight and height that can be stacked vertically, a deep wellbore for the vertical movement of the several heavy blocks, an electric motor located outside the wellhead of the deep wellbore, several shallow wellbores for dispersedly storing the several heavy blocks, a main transfer track for transporting the heavy blocks connecting the deep wellbore and the shallow wellbores, and several transfer devices; Support platforms for supporting the heavy blocks are provided in both the deep wellbore and the shallow wellbores; A steel rope is wound around the output shaft of the electric motor, and the lower end of the steel rope is connected to the support platform in the deep wellbore. The several heavy blocks can be threaded onto the steel rope and stacked on the support platform below it. The several heavy blocks can freely fall or be lifted upward in the deep wellbore together with the support platform; The transfer device includes a deep well transfer device provided at the wellhead of the deep wellbore and a shallow well transfer device provided at each shallow wellbore. The deep well transfer device can transfer and transport the heavy blocks between the support platform in the deep wellbore and the main transfer track connected to the deep wellbore. The shallow well transfer device can transfer and transport the heavy blocks between the support platform in the shallow wellbore and the main transfer track connected to the shallow wellbore.

2. The gravity energy storage system for industrial automation according to claim 1, characterized in that, The electric motor is a magnetic levitation motor. The electric motor can be used as a magnetic levitation motor for power consumption drive, or can be used as a magnetic levitation generator for power generation driven by the descent of the heavy blocks; And / or the number of the electric motors is two. The two electric motors are symmetrically distributed along the radial direction of the deep wellbore diameter on both sides of the deep wellbore, and the output shafts of the two electric motors are coaxially fixed.

3. An industrial automation gravity energy storage system according to claim 1, characterized in that, Transfer branch tracks are also connected in parallel to the main transfer track. The end of the transfer branch track far from the main transfer track is connected to a shallow wellbore. A shallow well transfer device that can transfer and transport the heavy blocks between the support platform in the shallow wellbore and the main transfer track connected to the shallow wellbore is also provided at the wellhead of this shallow wellbore. A track transfer device for transferring and transporting the heavy blocks between the two is provided at the starting end where the transfer branch track is connected to the main transfer track.

4. An industrial automation gravity energy storage system according to claim 1, characterized in that, The support platform is an elastically deformable structure that can be vertically telescoped. When the support platform is in a natural state, the support platform can partially extend outside the wellhead. The elastic modulus of the support platform is equal to the ratio of the weight of the heavy block to the height of the heavy block.

5. An industrial automation gravity energy storage system according to claim 4, characterized in that, The support platform includes an upper gasket and a lower gasket arranged oppositely, and a spring located between the upper gasket and the lower gasket. The several heavy blocks can be stacked on the upper gasket. The upper end of the spring is connected to the upper gasket, and the lower end of the spring is connected to the lower gasket; The support platform in the deep wellbore further includes a penetrating rod fixedly connected to the middle of the lower gasket. The upper end of the penetrating rod passes through the through hole in the middle of the upper gasket and is connected to the lower end of the steel rope. The heavy block can be threaded onto the penetrating rod. A smooth metal ring is fixedly connected in the through hole of the upper gasket. The penetrating rod passes through the smooth metal ring and can slide vertically therein.

6. The gravity energy storage system for industrial automation according to claim 1, characterized in that, Several stepped holes with the upper end larger than the lower end are vertically penetrated inside the heavy block.

7. An industrial automation gravity energy storage system according to any one of claims 1-6, characterized in that, A central axis hole is vertically penetrated through the middle of the heavy block. The heavy block is also horizontally provided with a notch communicating with the central axis hole. The steel rope can be located in the central axis hole through the notch.

8. An industrial automation gravity energy storage system according to claim 7, characterized in that, A direction adjusting device is also provided between the deep wellbore and the main transmission track. The direction adjusting device can rotate the heavy block so that its notch is aligned with the steel rope. The deep well transmission device can transfer and convey the heavy block between the supporting platform of the deep wellbore and the direction adjusting device. The transmission device also includes a far well transmission device that can transfer and convey the heavy block between the direction adjusting device and the main transmission track.

9. An industrial automation gravity energy storage system according to claim 8, characterized in that, The direction adjusting device includes a rotating ring disposed adjacent to the outer side of the deep wellbore wellhead. The heavy block can be placed on the rotating ring. A permanent magnet is provided above the rotating ring and located between the deep well transmission device and the far well transmission device. A magnet is embedded in the heavy block, and the permanent magnet can generate a magnetic force on the magnet to rotate the heavy block. The direction adjusting device further includes a magnetometer for detecting the magnetic field strength and direction, and a rotating shaft for pushing the heavy block on the rotating ring into the deep well transmission device. The magnetic induction line threshold output end of the magnetometer is connected to the enabling end of the rotating shaft.

10. A gravity energy storage system for industrial automation according to any one of claims 1-6, characterized in that, The deep well transmission device includes two first support seats symmetrically arranged on both sides of the deep wellbore wellhead. A row of vertically arranged columnar first rollers are rotatably installed on the opposite inner sides of the two first support seats. The first rollers can rotate self - sufficiently. A row of the first rollers are arranged in sequence from the deep wellbore side to the main transmission track with the structure of: the upper surface radius is large and the lower surface radius is small, then the upper surface radius is equal to the lower surface radius, and finally the upper surface radius is small and the lower surface radius is large. And / or the shallow well transmission device includes two second support seats symmetrically arranged on both sides of the shallow wellbore wellhead. An activity block is horizontally rotatably connected in the second support seat. A floating spring is fixedly connected to the outer end of the activity block, and the outer end of the floating spring is fixedly connected to the second support seat. A row of vertically arranged columnar second rollers are rotatably installed on the opposite inner sides of the two activity blocks. The second rollers can rotate self - sufficiently. A row of the second rollers are arranged in sequence from the shallow wellbore side to the main transmission track with the structure of: the upper surface radius is large and the lower surface radius is small, then the upper surface radius is equal to the lower surface radius, and finally the upper surface radius is small and the lower surface radius is large.

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