Silt dam gravity energy storage system and method

Abstract

The invention provides a silt dam gravity energy storage system and method.The silt dam gravity energy storage system comprises a gravity block, a lifting mechanism, a power generation mechanism, an electric quantity sensor and a controller, and the gravity block is arranged on the slope surface of a silt dam in a sliding mode and can ascend and descend in the slope surface direction of the slope surface of the silt dam; the lifting mechanism is arranged at the top of the slope of the silt dam and used for lifting the gravity block; the power generation mechanism is connected with the gravity block and can release electric energy through the gravity block; the electric quantity sensor is used for detecting the generating capacity of the wind power or solar power generation system and the power consumption of the current power system; the controller is electrically connected with the lifting mechanism, the power generation mechanism and the electric quantity sensor. Compared with the prior art, according to the gravity energy storage system of the silt dam, the gravity energy storage technology is applied to the silt dam, the traditional function of the silt dam in the aspect of water and soil conservation can be continuously played, the energy storage and supply functions can be achieved, and the comprehensive benefits of the silt dam are greatly improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of gravity energy storage, and in particular relates to a silt dam gravity energy storage system and method. Background Art

[0002] As an emerging energy storage method, gravity energy storage technology has the advantages of low cost, environmental friendliness, and long life. This technology mainly uses the gravitational potential energy generated by the gravity block during the height change process to store and release energy. When the power system load is low, the gravity block is lifted to a high position by consuming electric energy to store gravitational potential energy; when the power demand is peak, the gravity block is released to fall, and the gravitational potential energy is converted into electrical energy through the conversion device to supply the power grid.

[0003] As society's demand for clean energy and sustainable development grows, the functions of traditional check dams can no longer meet current needs. Although check dams play an important role in soil and water conservation, their added value needs to be further explored and their comprehensive benefits have not been maximized.

[0004] Therefore, how to effectively improve the comprehensive benefits of the silt dam is an urgent problem to be solved by technical personnel in this field. Summary of the invention

[0005] In view of this, the purpose of the present invention is to provide a gravity energy storage system for a silt dam, which can not only continue to play the traditional function of the silt dam in soil and water conservation, but also store and supply energy, thereby effectively improving the comprehensive benefits of the silt dam.

[0006] Another object of the present invention is to provide a gravity energy storage method for a silt dam.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A silt dam gravity energy storage system, comprising:

[0009] A gravity block is slidably arranged on the slope of the silt dam and can be raised and lowered along the slope direction of the silt dam;

[0010] A lifting mechanism, arranged at the top of the slope of the silt dam, for lifting the gravity block;

[0011] A power generation mechanism, connected to the gravity block and capable of releasing electrical energy through the gravity block;

[0012] A power sensor is used to detect the power generation of the wind power or solar power generation system and the power consumption of the current power system;

[0013] The controller is electrically connected to the lifting mechanism, the power generation mechanism and the power sensor respectively.

[0014] Optionally, the gravity block is a weight box, a concrete block, a metal block or a composite block.

[0015] Optionally, the heavy object box is filled with fillers of a preset weight.

[0016] Optionally, a guide rail is also provided on the slope surface of the silt dam;

[0017] The gravity block is also provided with a guide rail support which is slidably matched with the guide rail.

[0018] Optionally, there are two guide rails, and they are arranged along the slope direction of the silt dam slope;

[0019] The guide rail supports are two in number and are arranged on the bottom end surface of the gravity block in a one-to-one correspondence with the guide rails.

[0020] Optionally, the lifting mechanism includes a winch and a cable, the winch is arranged at the top of the slope of the silt dam, one end of the cable is connected to the winch, and the other end of the cable is connected to the gravity block.

[0021] Optionally, a position sensor is also included, and the position sensor is electrically connected to the controller.

[0022] Optionally, there are two position sensors, which are respectively arranged at the upper and lower parts of the silt dam.

[0023] Optionally, the power generation mechanism includes a generator, a pulley and a belt, the belt is cooperatively connected to the pulley, and the other end of the belt is connected to the gravity block, and the generator is connected to the pulley.

[0024] A method for storing gravity energy in a silt dam, applied to a silt dam gravity energy storage system as described above, comprises the following steps:

[0025] S100: Detecting the power generation of the wind power or solar power generation system and the power consumption of the current power system;

[0026] S200: comparing the power generation and the power consumption, if the power generation is greater than the power consumption, executing step S300, if the power generation is less than the power consumption, executing step S400;

[0027] S300: controlling the action of the lifting mechanism to lift the gravity block to the top of the slope of the silt dam, and converting the electrical energy into potential energy for storage;

[0028] S400: Control the action of the lifting mechanism to release the gravity block, convert the potential energy of the gravity block into kinetic energy, and convert it into electrical energy through the power generation mechanism.

[0029] It can be seen from the above technical scheme that the power sensor detects the power generation of the wind power or solar power generation system and the power consumption of the current power system, and determines whether there is surplus power by comparing the power generation and power consumption. When the power sensor detects that the wind power or solar power generation system has surplus power (that is, when the power generation is greater than the power consumption), the signal is transmitted to the controller, and the controller controls the lifting mechanism to lift the gravity block to the top of the slope of the silt dam, and converts the electric energy into potential energy for storage;

[0030] When the power sensor detects an increase in the power consumption of the current power system (that is, when the power consumption is greater than the power generation), the signal is transmitted to the controller. The controller controls the action of the lifting mechanism to release the gravity block. Since the gravity block is connected to the power generation mechanism, the potential energy of the gravity block is converted into kinetic energy during the falling process of the gravity block, and then converted into electrical energy through the power generation mechanism.

[0031] Compared with the prior art, the silt dam gravity energy storage system disclosed in the embodiment of the present invention applies gravity energy storage technology to the silt dam, which can not only continue to play the traditional function of the silt dam in soil and water conservation, but also realize energy storage and supply functions, greatly improving the comprehensive benefits of the silt dam. Moreover, by applying gravity energy storage technology to the silt dam, it is possible to effectively store excess electricity from clean energy such as wind power and solar energy during off-peak periods and release it during peak electricity consumption, thereby improving the clean energy absorption capacity and promoting the optimization and transformation of the energy structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0033] Figure 1 A schematic diagram of the three-dimensional structure of a gravity energy storage system for a silt dam disclosed in an embodiment of the present invention;

[0034] Figure 2 A side view of a silt dam gravity energy storage system disclosed in an embodiment of the present invention;

[0035] Figure 3 It is a front view of the power generation mechanism disclosed in the embodiment of the present invention;

[0036] Figure 4 The present invention is a flowchart of a gravity energy storage method for a silt dam disclosed in an embodiment of the present invention.

[0037] Description of reference numerals:

[0038] 100. Gravity block; 101. Guide rail support; 200. Winch; 300. Cable; 400. Generator; 500. Pulley; 600. Belt; 700. Silt dam slope; 701. Guide rail. DETAILED DESCRIPTION

[0039] In view of this, the core of the present invention is to provide a gravity energy storage system for a silt dam, which can not only continue to play the traditional function of the silt dam in soil and water conservation, but also store and supply energy, thereby effectively improving the comprehensive benefits of the silt dam.

[0040] Another core of the present invention is to provide a gravity energy storage method for a silt dam.

[0041] The following will be combined with the drawings in 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 creative work are within the scope of protection of the present invention. Please refer to Figures 1 to 4 .

[0042] Please refer to Figure 1 and Figure 2 The silt dam gravity energy storage system disclosed in the embodiment of the present invention includes a gravity block 100, a lifting mechanism and a power generation mechanism, a power sensor and a controller, wherein the gravity block 100 is slidably arranged on the silt dam slope 700, and can be lifted and lowered along the slope direction of the silt dam slope 700; the lifting mechanism is arranged at the top of the silt dam slope, for lifting the gravity block 100; the power generation mechanism is connected to the gravity block 100, and can release electric energy through the gravity block 100; the power sensor is used to detect the power generation of the wind power or solar power generation system and the power consumption of the current power system; the controller is electrically connected to the lifting mechanism, the power generation mechanism and the power sensor respectively.

[0043] The power sensor detects the power generation of the wind power or solar power generation system and the power consumption of the current power system, and determines whether there is surplus power by comparing the power generation and power consumption. When the power sensor detects that the wind power or solar power generation system has surplus power (that is, the power generation is greater than the power consumption), the signal is transmitted to the controller, and the controller controls the lifting mechanism to lift the gravity block 100 to the top of the slope of the silt dam, and converts the electric energy into potential energy for storage;

[0044] When the power sensor detects an increase in the power consumption of the current power system (i.e., when the power consumption is greater than the power generation), the signal is transmitted to the controller, and the controller controls the action of the lifting mechanism to release the gravity block 100. Since the gravity block 100 is connected to the power generation mechanism, during the falling process of the gravity block 100, the potential energy of the gravity block 100 is converted into kinetic energy, and then converted into electrical energy through the power generation mechanism.

[0045] Compared with the prior art, the silt dam gravity energy storage system disclosed in the embodiment of the present invention applies gravity energy storage technology to the silt dam, which can not only continue to play the traditional function of the silt dam in soil and water conservation, but also realize energy storage and supply functions, greatly improving the comprehensive benefits of the silt dam. Moreover, by applying gravity energy storage technology to the silt dam, it is possible to effectively store excess electricity from clean energy such as wind power and solar energy during off-peak periods and release it during peak electricity consumption, thereby improving the clean energy absorption capacity and promoting the optimization and transformation of the energy structure.

[0046] The embodiment of the present invention does not limit the specific structure of the gravity block 100. As long as the structure meets the use requirements of the present invention, it is within the protection scope of the present invention.

[0047] The gravity block 100 may be a weight box, or a concrete block, a metal block or a composite block.

[0048] When the gravity block 100 is a weight box, the weight box can be filled with fillers of preset weight according to the required gravity requirements. For example, the fillers can be concrete blocks, metal blocks, composite blocks or other objects with weight.

[0049] As a further embodiment, a guide rail 701 is further provided on the slope surface 700 of the silt dam disclosed in the embodiment of the present invention, and a guide rail support 101 slidably matched with the guide rail 701 is further provided on the gravity block 100 .

[0050] As a specific embodiment of the present invention, the guide rails 701 disclosed in the embodiment of the present invention are two and are arranged along the slope direction of the silt dam slope 700; correspondingly, the guide rail supports 101 are two and are arranged on the bottom end surface of the gravity block 100 in a one-to-one correspondence with the guide rails 701. In this way, the bottom end surface of the gravity block 100 is lifted by the guide rail supports 101 matched with the guide rails 701, and the gravity block 100 is driven by the lifting mechanism to move up and down along the guide rails 701 in the slope direction of the silt dam slope 700.

[0051] The embodiments of the present invention do not limit the specific structure of the lifting mechanism. The lifting mechanism can be a winch lifting mechanism, a chain lifting mechanism, a hydraulic lifting mechanism, or a spiral lifting mechanism. As long as the structure meets the use requirements of the present invention, it is within the protection scope of the present invention.

[0052] As a specific embodiment of the present invention, the lifting mechanism disclosed in the embodiment of the present invention includes a winch 200 and a cable 300, wherein the winch 200 is arranged on the top of the silt dam slope 700, one end of the cable 300 is connected to the winch 200, and the other end is connected to the gravity block 100.

[0053] The winch 200 is started, and the winch 200 can drive the gravity block 100 to move up and down along the guide rail 701, so as to store or release energy through the gravity block 100.

[0054] It should be noted that a certain margin needs to be reserved for the cable 300, so that even if part of the lifting mechanism fails, the gravity block will not fall out of control, ensuring safety during the lifting process. After the gravity block is lifted, the gravity block is fixed on the top of the silt dam slope 700.

[0055] As a further embodiment, the silt dam gravity energy storage system disclosed in the embodiment of the present invention further includes a position sensor, wherein the position sensor and the controller are electrically connected.

[0056] As a further embodiment, there are two position sensors disclosed in the embodiment of the present invention, which are respectively arranged on the upper and lower parts of the slope 700 of the silt dam. The position sensor can detect the position of the gravity block 100 on the slope 700 of the silt dam and transmit the information to the controller. The controller issues an action command to the winch 200 through analysis, thereby controlling the working state of the winch 200.

[0057] The position sensor may be disposed on the slope surface 700 of the silt dam, or may be disposed at other locations, as long as the position detection of the gravity block 100 can be achieved.

[0058] The embodiments of the present invention do not limit the specific structure of the power generation mechanism. As long as the structure meets the use requirements of the present invention, it is within the protection scope of the present invention.

[0059] As a specific embodiment of the present invention, please refer to Figure 3 The power generation mechanism disclosed in the embodiment of the present invention includes a generator 400, a pulley 500 and a belt 600, wherein one end of the belt 600 is connected to the pulley 500, and the other end is connected to the gravity block 100, and the generator 400 is connected to the pulley 500.

[0060] Among them, the pulley 500 is usually installed on a fixed bracket and can rotate around an axis. The pulley 500 can reduce friction and balance the gravity block 100. In the present invention, the pulley 500 is equivalent to a pulley and cooperates with the belt 600.

[0061] In the energy storage stage, the winch 200 lifts the weight block 100 to the top of the silt dam slope 700 through the cable 300. At this time, the cable 300 is in a taut state, storing the gravitational potential energy of the weight block 100. In the power generation stage, the winch 200 releases the cable 300, the weight block 100 falls, and the weight block 100 pulls the pulley 500 to rotate through the belt 600, converting the gravitational potential energy into the rotational kinetic energy of the pulley 500. Since the pulley 500 is connected to the generator 400 through an axis or directly connected, at this time, the rotation of the pulley 500 drives the rotor of the generator 400 to rotate, and the generator 400 converts mechanical energy (rotational kinetic energy) into electrical energy through the electromagnetic induction principle (Faraday's law of electromagnetic induction) inside.

[0062] Please refer to Figure 4 The embodiment of the present invention further discloses a gravity energy storage method for a silt dam, which is applied to a gravity energy storage system for a silt dam as disclosed in any of the above embodiments, and specifically includes the following steps:

[0063] S100: Detecting the power generation of the wind power or solar power generation system and the power consumption of the current power system;

[0064] S200: Compare the power generation and the power consumption. If the power generation is greater than the power consumption, execute step S300; if the power generation is less than the power consumption, execute step S400;

[0065] S300: Control the lifting mechanism to lift the gravity block 100 to the top of the slope of the silt dam, and convert the electrical energy into potential energy for storage;

[0066] S400: Control the action of the lifting mechanism to release the gravity block, convert the potential energy of the gravity block 100 into kinetic energy, and convert it into electrical energy through the power generation mechanism.

[0067] The power sensor detects the power generation of the wind power or solar power generation system and the power consumption of the current power system, and determines whether there is surplus power by comparing the power generation and power consumption. When the power sensor detects that the wind power or solar power generation system has surplus power (that is, the power generation is greater than the power consumption), the signal is transmitted to the controller, and the controller controls the lifting mechanism to lift the gravity block 100 to the top of the slope of the silt dam, and converts the electric energy into potential energy for storage;

[0068] When the power sensor detects an increase in the power consumption of the current power system (i.e., when the power consumption is greater than the power generation), the signal is transmitted to the controller, and the controller controls the action of the lifting mechanism to release the gravity block 100. Since the gravity block 100 is connected to the power generation mechanism, during the falling process of the gravity block 100, the potential energy of the gravity block 100 is converted into kinetic energy, and then converted into electrical energy through the power generation mechanism.

[0069] Compared with the prior art, the silt dam gravity energy storage system disclosed in the embodiment of the present invention applies gravity energy storage technology to the silt dam, which can not only continue to play the traditional function of the silt dam in soil and water conservation, but also realize energy storage and supply functions, greatly improving the comprehensive benefits of the silt dam. Moreover, by applying gravity energy storage technology to the silt dam, it is possible to effectively store excess electricity from clean energy such as wind power and solar energy during off-peak periods and release it during peak electricity consumption, thereby improving the clean energy absorption capacity and promoting the optimization and transformation of the energy structure.

[0070] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the term "comprises" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0071] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0072] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A gravity energy storage system for a silt dam, characterized in that: include: A gravity block is slidably arranged on the slope of the silt dam and can be raised and lowered along the slope direction of the silt dam; A lifting mechanism, arranged at the top of the slope of the silt dam, for lifting the gravity block; A power generation mechanism, connected to the gravity block and capable of releasing electrical energy through the gravity block; A power sensor is used to detect the power generation of the wind power or solar power generation system and the power consumption of the current power system; The controller is electrically connected to the lifting mechanism, the power generation mechanism and the power sensor respectively.

2. The silt dam gravity energy storage system according to claim 1, characterized in that: The gravity block is a weight box, a concrete block, a metal block or a composite block.

3. The silt dam gravity energy storage system according to claim 2, characterized in that: The heavy object box is filled with fillers of preset weight.

4. The silt dam gravity energy storage system according to claim 1, characterized in that: A guide rail is also provided on the slope surface of the silt dam; The gravity block is also provided with a guide rail support which is slidably matched with the guide rail.

5. The silt dam gravity energy storage system according to claim 4, characterized in that: There are two guide rails, which are arranged along the slope direction of the silt dam slope; The guide rail supports are two in number and are arranged on the bottom end surface of the gravity block in a one-to-one correspondence with the guide rails.

6. The silt dam gravity energy storage system according to claim 1, characterized in that: The lifting mechanism comprises a winch and a cable. The winch is arranged at the top of the slope of the silt dam. One end of the cable is connected to the winch, and the other end is connected to the gravity block.

7. The silt dam gravity energy storage system according to claim 1, characterized in that: The device also includes a position sensor, which is electrically connected to the controller.

8. The silt dam gravity energy storage system according to claim 7, characterized in that: There are two position sensors, which are respectively arranged at the upper part and the lower part of the silt dam.

9. The silt dam gravity energy storage system according to claim 1, characterized in that: The power generation mechanism comprises a generator, a pulley and a belt. The belt is cooperatively connected with the pulley and the other end is connected with the gravity block. The generator is connected with the pulley.

10. A method for storing gravity energy in a silt dam, applied to the silt dam gravity energy storage system according to any one of claims 1 to 9, characterized in that: The following steps are involved: S100: Detecting the power generation of the wind power or solar power generation system and the power consumption of the current power system; S200: comparing the power generation and the power consumption, if the power generation is greater than the power consumption, executing step S300, if the power generation is less than the power consumption, executing step S400; S300: controlling the action of the lifting mechanism to lift the gravity block to the top of the slope of the silt dam, and converting the electrical energy into potential energy for storage; S400: Control the action of the lifting mechanism to release the gravity block, convert the potential energy of the gravity block into kinetic energy, and convert it into electrical energy through the power generation mechanism.

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