Rail type gravity power generation system for realizing continuous power generation by using single-stage double rails and processing method

Abstract

The invention discloses a rail-mounted gravity power generation system for realizing continuous power generation by using single-stage double rails and a processing method, and the rail-mounted gravity power generation system comprises a single-stage rack rail transmission system, an intelligent loading unit, an energy conversion chain, a closed-loop material circulation system and a double-rail circulation control system, the rack rail has the gradient of 28 degrees, the rack rail adopts a sectional modular design, the length of a single section is 1 kilometer, each section of rack rail is provided with an independent steel wire rope driving device, a rack with the modulus of 20 mm is arranged on the surface of the rack rail and is in meshing transmission with a gear of the intelligent load-carrying unit, and the standard load of the intelligent load-carrying unit, the modular hopper carried on the rack rail is 50 tons (the dead weight is 12 tons and the load is 38 tons). According to the invention, synchronous operation of'heavy vehicle descending power generation 'and'empty vehicle ascending material returning' is realized through double-rail parallel operation, the operation cycle difference is less than or equal to 15 minutes, and the annual energy output reaches 438 billion kWh (50% load rate) and is increased by about 3 times compared with that of a traditional single-rail system.

Description

Technical Field

[0001] The present invention relates to the technical field of gravity power generation, and particularly to an orbital gravity power generation system and a processing method for realizing continuous power generation by using a single-stage double track. Background Art

[0002] The principle of gravity power generation is a technology that uses the earth's gravity to generate electrical energy. Its basic principle is to release a heavy object from a higher position to a lower position, and use the potential energy released during the descent of the object to be converted into kinetic energy, and then further converted into electrical energy. In a gravity power generation system, the heavy objects commonly used can be objects with a certain mass such as sandbags and water buckets. These heavy objects are connected to the power generation device through ropes or chains. When the heavy objects start to descend from a higher position, they drive the power generation device to rotate. In the power generation device, a generator is usually installed. When the power generation device rotates, the wires in the generator interact with the magnetic field to generate an induced current, which is finally converted into usable electrical energy. However, current gravity power generation systems mostly rely on natural terrain drops (such as hydropower stations) or single-track transportation structures: the former needs to rely on special landforms to build high dams, which are strictly restricted by geographical conditions, have a long construction period, and have a significant environmental impact; the latter can reduce geographical dependence through artificial slope tracks, but the single-track structure leads to strong power generation intermittency, a high proportion of downtime, low transmission efficiency and easy wear of the wire rope drive method, high maintenance costs; the single braking method has insufficient safety redundancy, a long braking distance and serious energy waste; the system is difficult to adapt to terrain changes, the load ratio is fixed, and the self-power consumption is high. Therefore, we propose an orbital gravity power generation system and a processing method for realizing continuous power generation by using a single-stage double track. Summary of the Invention

[0003] The purpose of the present invention is to provide an orbital gravity power generation system and a processing method for realizing continuous power generation by using a single-stage double track, which have the advantages of improved power generation continuity, optimized energy conversion efficiency, enhanced safety redundancy, and strong adaptability, and solve the problems that current gravity power generation systems mostly rely on natural terrain drops (such as hydropower stations) or single-track transportation structures: the former needs to rely on special landforms to build high dams, which are strictly restricted by geographical conditions, have a long construction period, and have a significant environmental impact; the latter can reduce geographical dependence through artificial slope tracks, but the single-track structure leads to strong power generation intermittency, a high proportion of downtime, low transmission efficiency and easy wear of the wire rope drive method, high maintenance costs; the single braking method has insufficient safety redundancy, a long braking distance and serious energy waste; the system is difficult to adapt to terrain changes, the load ratio is fixed, and the self-power consumption is high.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a track-type gravity power generation system for realizing continuous power generation by using a single-stage double track, comprising a single-stage rack transmission system, an intelligent load unit, an energy conversion chain, a closed-loop material circulation system and a double-track circulation control system, wherein the single-stage rack transmission system has at least two parallel inclined racks with a slope of 28°, the racks adopt a segmented modular design, the length of a single segment is 1 km, each segment of the rack is equipped with an independent wire rope drive device, the surface of the rack is provided with a rack with a module of 20 mm, which meshes with the gear of the intelligent load unit for transmission, the intelligent load unit is a modular hopper mounted on the rack, and the standard unit has a load capacity of 50 tons (self-weight 12 tons + load 38 Tons), built-in laser scanning device and four-quadrant hydraulic suspension system, dynamically adjust the load ratio through AI algorithm to ensure that the center of gravity offset is less than 5%, the energy conversion chain includes a gear turntable linked to the wire rope, a three-stage planetary gear speed increaser, the transmission ratio of the three-stage planetary gear speed increaser is 1:85, a permanent magnet synchronous generator (2MW peak power), and a magnetorheological fluid adaptive coupling. The closed-loop material circulation system is provided with a belt conveyor (bandwidth 1.8m) at the bottom of the rack, equipped with a dynamic weighing sensor and AI material distribution algorithm, and supports solar-assisted drive. The parallel racks of the dual-track circulation control system are divided into a power generation rail and a return rail, and the dual-track operation cycle difference is achieved by a PLC controller ≤15 minutes.

[0005] Preferably, the rack-and-rail transmission system further comprises a hydraulic positioning device to ensure that the lateral deviation of the track is less than 2 mm / m and the longitudinal slope error is less than ±0.5°.

[0006] Preferably, the energy conversion chain further comprises a composite energy recovery module, comprising an electromagnetic eddy current brake (efficiency 68-72%), a hydraulic accumulator (efficiency 82-85%) and a flywheel energy storage device (efficiency 90-93%).

[0007] Preferably, the safety control system includes three-level braking devices: the first-level braking adopts a magnetic powder clutch, the second-level braking is a disc brake, and the third-level braking is a wedge-shaped track clamping device.

[0008] A method for processing a track-type gravity power generation system using a single-stage double track to achieve continuous power generation, characterized in that it includes the following steps:

[0009] A. Double-track circulation operation: The hopper on the power rail is loaded with 38 tons of load (steel balls / gravel) and moves downward along the 28° rack track, and the generator is driven to generate electricity through the gear rack transmission; at the same time, the hopper on the return rail moves upward without load, and the load is synchronously conveyed to the top by the bottom belt conveyor to realize parallel operation. The system power generation efficiency is calculated as 40%;

[0010] B. Dynamic counterweight optimization: By laser scanning the loading state of the hopper, the AI algorithm calculates the load ratio in real time, combines with the gyroscope to monitor the hopper attitude, and adjusts the height of the four-quadrant hydraulic suspension to ensure that the center of gravity deviation is <5% when running on a 30° slope;

[0011] C. Variable-speed power generation control: The speed sensor dynamically monitors the downward speed of the hopper, and adjusts the excitation current of the generator through the PLC controller to maintain the output voltage stable;

[0012] D. Energy closed-loop management: The braking energy is recovered through electromagnetic eddy current braking and hydraulic accumulators, and is preferentially used to drive the material circulation system.

[0013] Preferably, the double-track circulation period ≤ 15 minutes, and the annual power generation is 438 million kWh calculated at a 50% load rate.

[0014] Preferably, the system energy density is 850 - 1200 Wh / m 3 , and the construction period is 18 - 24 months.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. The present invention realizes the synchronous operation of "heavy vehicle going downhill for power generation" and "empty vehicle going uphill for material return" through double-track parallel operation, the operation period difference ≤ 15 minutes, and the annual power generation reaches 438 million kWh (50% load rate), which is about 3 times higher than that of the traditional single-track system.

[0017] 2. The present invention adopts a tooth rail with a modulus of 20 mm meshed with a gear, combines a three-stage planetary gear speed increaser (transmission ratio 1:85) and a permanent magnet synchronous generator (peak power 2 MW), and the system power generation efficiency reaches 40%, and the energy density is increased to 850 - 1200 Wh / m 3 .

[0018] 3. The present invention realizes a 2-second brake stop for a 100-ton load through a three-stage braking system (magnetic powder clutch + disc brake + wedge clamping device), and the composite energy recovery module (electromagnetic eddy current braking efficiency 68 - 72%, hydraulic accumulator 82 - 85%, flywheel energy storage 90 - 93%) recovers the braking energy to reduce the self-power consumption of the system.

[0019] 4. The present invention combines the dynamic counterweight algorithm with the four-quadrant hydraulic suspension to ensure that the center of gravity deviation is <5% when running on a 30° slope, supports a mixed load of steel balls / gravel, adapts to a 28° artificial slope track, and the construction period is shortened to 18 - 24 months. Detailed implementation mode

[0020] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0021] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0022] The present invention provides a track-type gravity power generation system for realizing continuous power generation by using a single-stage double track, comprising a single-stage rack transmission system, an intelligent load unit, an energy conversion chain, a closed-loop material circulation system and a double-track circulation control system, wherein at least two inclined racks arranged in parallel in the single-stage rack transmission system have a slope of 28°, the rack adopts a segmented modular design, and the length of a single segment is 1 km, each segment of the rack is equipped with an independent wire rope drive device, a rack with a module of 20 mm is provided on the surface of the rack, and the gear meshing transmission with the intelligent load unit, the intelligent load unit, a modular hopper mounted on the rack, a standard unit load of 50 tons (self-weight 12 tons + load 38 tons), a built-in laser scanning device and a four-quadrant hydraulic suspension system, and the load ratio is dynamically adjusted through an AI algorithm to ensure that the center of gravity offset is less than 5%, and the energy conversion chain comprises a gear turntable linked to the wire rope, a three-stage planetary gear speed increaser, and the transmission ratio of the three-stage planetary gear speed increaser The gear ratio is 1:85, permanent magnet synchronous generator (2MW peak power), and magnetorheological fluid adaptive coupling. The closed-loop material circulation system is a belt conveyor (bandwidth 1.8m) located at the bottom of the rack rail, equipped with a dynamic weighing sensor and AI material distribution algorithm, supporting solar-assisted drive, and a dual-track circulation control system. The parallel rack rail is divided into a power generation rail and a return rail. The PLC controller is used to achieve a dual-track operation cycle difference of ≤15 minutes. The rack rail transmission system also includes a hydraulic positioning device to ensure that the lateral deviation of the track is less than 2mm / m and the longitudinal slope error is less than ±0.5°. The energy conversion chain also includes a composite energy recovery module, including an electromagnetic eddy current brake (efficiency 68-72%), a hydraulic accumulator (efficiency 82-85%) and a flywheel energy storage device (efficiency 90-93%). The safety control system includes a three-level braking device: the first-level braking adopts a magnetic powder clutch, the second-level braking is a disc brake, and the third-level braking is a wedge-shaped track clamping device.

[0023] A method for processing a track-type gravity power generation system using a single-stage double track to achieve continuous power generation, characterized in that it includes the following steps:

[0024] A. Double-track cyclic operation: The power generation rail hopper loaded with a 38-ton load (steel balls / gravel) descends along a 28° toothed rail, driving a generator to generate electricity through a rack and pinion drive; at the same time, the empty return rail hopper ascends empty, and the load is synchronously conveyed to the top by a bottom belt conveyor to achieve parallel operation. The power generation efficiency of the system is calculated at 40%.

[0025] B. Dynamic counterweight optimization: By laser scanning the loading state of the hopper, the AI algorithm calculates the load ratio in real time, combines with the gyroscope to monitor the hopper attitude, and adjusts the height of the four-quadrant hydraulic suspension to ensure that the center of gravity deviation <5% during operation on a 30° slope.

[0026] C. Variable-speed power generation control: The speed sensor dynamically monitors the descending speed of the hopper, and the PLC controller adjusts the excitation current of the generator to maintain the output voltage stable.

[0027] D. Energy closed-loop management: The braking energy is recovered through electromagnetic eddy current braking and hydraulic accumulators, and is preferentially used to drive the material circulation system.

[0028] The double-track cycle period ≤ 15 minutes, the annual power generation is 438 million kWh calculated at a 50% load rate, and the system energy density is 850 - 1200 Wh / m 3 , and the construction period is 18 - 24 months.

[0029] The working principle of the present invention is as follows: The power generation rail hopper loaded with 38 tons of steel balls / gravel (self-weight 12 tons) descends along a 28° toothed rail, drives a wire rope through the engagement of a rack and pinion, drives a three-stage speed increasing box and a permanent magnet generator to generate electricity. The bottom belt conveyor (belt width 1.8m) conveys the steel balls / gravel to the top hopper. At the same time, the empty return rail hopper ascends. The double-track operation cycle difference ≤ 15 minutes to achieve seamless connection of "power generation - empty return". The AI algorithm dynamically adjusts the load ratio according to the laser scanning data (the proportion of steel balls is 60% - 90%). The four-quadrant hydraulic suspension system balances the hopper attitude in real time (center of gravity deviation <5%). The speed sensor monitors the descending speed (2 - 10m / s), and the PLC controller adjusts the excitation current of the generator to ensure that the output voltage fluctuation ≤ ±3%. The electromagnetic eddy current braking and hydraulic accumulators recover the braking energy (efficiency ≥ 80%), which is preferentially used to drive the conveyor to ascend. The three-stage braking system is started step by step according to the working conditions to ensure the safe operation of the system in various scenarios.

[0030] Importantly, it should be noted that the construction and arrangement of the present application shown in multiple different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those skilled in the art who refer to this disclosure should easily understand that many modifications are possible without materially departing from the novel teachings and advantages of the subject matter described in this application (e.g., variations in the dimensions, scales, structures, shapes and proportions of various elements, as well as parameter values (such as temperature, pressure, etc.), installation arrangements, use of materials, colors, orientations, etc.). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature, number or position of discrete elements may be altered or changed. Accordingly, all such modifications are intended to be included within the scope of the present invention. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "means-plus-function" clause is intended to cover the structures that perform the recited function herein, and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present invention. Therefore, the present invention is not limited to a particular embodiment, but extends to various modifications that still fall within the scope of the appended claims.

[0031] In addition, to provide a concise description of the exemplary embodiments, not all features of the actual embodiments may be described (i.e., those features that are not relevant to the currently contemplated best mode of carrying out the present invention or those features that are not relevant to implementing the present invention).

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the protection scope of the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention may be modified or equivalently replaced without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. An orbital gravity power generation system that uses a single-stage double-rail to achieve continuous power generation, comprising a single-stage gear-rail drive system, an intelligent load unit, an energy conversion chain, a closed-loop material circulation system, and a double-rail circulation control system, characterized in that: The single-stage rack transmission system has at least two parallel inclined racks with a slope of 28°. The rack adopts a segmented modular design with a single segment length of 1 km. Each segment of the rack is equipped with an independent wire rope drive device. The rack surface is provided with a rack with a module of 20 mm, which is meshed with the gear of the intelligent load-bearing unit. The intelligent load-bearing unit is a modular hopper mounted on the rack. The standard unit has a load capacity of 50 tons (12 tons of dead weight + 38 tons of load). It has a built-in laser scanning device and a four-quadrant hydraulic suspension system. The load ratio is dynamically adjusted through an AI algorithm to ensure the center of gravity offset. <5%, the energy conversion chain includes a gear turntable linked to the wire rope, a three-stage planetary gear speed increaser, the transmission ratio of the three-stage planetary gear speed increaser is 1:85, a permanent magnet synchronous generator (2MW peak power), and a magnetorheological fluid adaptive coupling. The closed-loop material circulation system is provided at the bottom of the rack belt conveyor (bandwidth 1.8m), equipped with a dynamic weighing sensor and an AI material distribution algorithm, and supports solar-assisted drive. The parallel racks of the dual-track circulation control system are divided into a power generation rail and a return rail, and the dual-track operation cycle difference is ≤15 minutes through the PLC controller.

2. The orbital gravity power generation system for continuous power generation using a single-stage double track according to claim 1, characterized in that: The rack-and-rail transmission system also includes a hydraulic positioning device to ensure that the lateral deviation of the track is less than 2 mm / m and the longitudinal slope error is less than ±0.5°.

3. The orbital gravity power generation system for continuous power generation using a single-stage double track according to claim 1, characterized in that: The energy conversion chain also includes a composite energy recovery module, including an electromagnetic eddy current brake (efficiency 68-72%), a hydraulic accumulator (efficiency 82-85%) and a flywheel energy storage device (efficiency 90-93%).

4. The orbital gravity power generation system for continuous power generation using a single-stage double track according to claim 1, characterized in that: The safety control system includes three-level braking devices: the first-level braking adopts a magnetic powder clutch, the second-level braking is a disc brake, and the third-level braking is a wedge-shaped track clamping device.

5. An orbital gravity power generation system processing method for realizing continuous power generation by using a single-stage double track, characterized in that: The following steps are involved: A. Double-track circulation operation: The hopper on the power rail is loaded with 38 tons of load (steel balls / gravel) and moves downward along the 28° rack track, and the generator is driven to generate electricity through the gear rack transmission; at the same time, the hopper on the return rail moves upward without load, and the load is synchronously conveyed to the top by the bottom belt conveyor to realize parallel operation. The system power generation efficiency is calculated as 40%; B. Dynamic counterweight optimization: Through laser scanning of the hopper loading status, AI algorithm calculates the load ratio in real time, combines with gyroscope to monitor the hopper posture, adjusts the height of the four-quadrant hydraulic suspension, and ensures that the center of gravity offset is less than 5% when running at a 30° slope; C. Variable speed power generation control: The speed sensor dynamically monitors the hopper's downward speed and adjusts the generator excitation current through the PLC controller to maintain a stable output voltage; D. Energy closed-loop management: Braking energy is recovered through electromagnetic eddy current braking and hydraulic accumulators, and is used first to drive the material circulation system.

6. A processing method for an orbital gravity power generation system that utilizes a single-stage double-rail to achieve continuous power generation, as described in claim 5, characterized in that: The dual-track cycle period is ≤15 minutes, and the annual power generation is 438 million kWh based on a 50% load rate.

7. A processing method for an orbital gravity power generation system that uses a single-stage double-rail to achieve continuous power generation according to claim 5, characterized in that: The system energy density is 850 - 1200 Wh / m 3 , and the construction period is 18 - 24 months.