CN115031154B - A gravity energy storage system based on pressure lever - Google Patents

Abstract

This application proposes a gravity energy storage system based on a pressure lever, which includes a shaft. A gravity pressure block is movablely inserted in the shaft. The gravity pressure block and the side wall of the shaft are sealingly connected through a seal. The gravity pressure block, seal and The shaft is located between the spaces below the seals to form a gas storage cavity. The bottom side wall of the shaft is provided with a communicating cavity. A pressure cylinder is provided at the bottom of the communicating cavity. A lever is provided in the communicating cavity. One end of the lever is hinged with a crank, and the other end is located Below the gravity pressure block; the top end of the piston is connected to the bottom end of the crank. The piston is movablely plugged into the pressure cylinder. The piston and the pressure cylinder are sealed. A sealing chamber is formed in the pressure cylinder below the piston. The sealing chamber is filled with compressible gas. By arranging a pressure cylinder, a piston, and a lever in the air storage chamber, ventilation is achieved while the pressure of the compressed air in the air storage chamber can act on the piston. The piston drives one end of the lever to lift, exerting an upward auxiliary force on the gravity pressure block, which facilitates gravity. Start of press block.

Description

A gravity energy storage system based on pressure lever

Technical field

The present application relates to the technical field of electrical energy storage, and in particular to a gravity energy storage system based on a pressure lever.

Background technique

Gravity compressed air energy storage is achieved by setting up a gravity block in the shaft. The gravity block and the shaft are sealed and connected by a sealing film. A sealed gas storage cavity is formed in the shaft below the gravity block for the storage of high-pressure gas. By transferring the air After compression, the energy of the compressed air is partially converted into the gravitational potential energy of the gravity block and stored in the gas storage cavity. During the energy storage process, gas is introduced into the gas storage cavity so that the gas in the gas storage cavity will move the gravity block. Push up, but when the gravity of the gravity block is large, a large force is required when the gravity block is activated.

Contents of the invention

The present application aims to solve, at least to a certain extent, one of the technical problems in the related art.

To this end, the purpose of this application is to propose a gravity energy storage system based on a pressure lever. By arranging a pressure cylinder, a piston and a lever at the gas storage chamber, the pressure of the compressed air in the gas storage chamber can act on it while ventilating. As for the piston, when the piston moves downward, it can pull one end of the lever to move downward, and the other end is lifted. The lifted end exerts an upward auxiliary force on the gravity pressure block to facilitate the activation of the gravity pressure block, and the force exerted on the lever is to store air. The pressure of the compressed air in the cavity realizes the reasonable utilization of the compressed air pressure when the gravity pressure block is started.

In order to achieve the above purpose, this application proposes a gravity energy storage system based on a pressure lever, including:

Shaft, a gravity pressure block is movably inserted in the shaft, the gravity pressure block and the side wall of the shaft are sealingly connected through a seal, the gravity pressure block, the seal and the shaft are located in the A gas storage chamber is formed between the spaces below the seals. The bottom side wall of the shaft is provided with at least one communicating cavity. A pressure cylinder is provided at the bottom of the communicating cavity. The communicating cavity is connected with the gas storage cavity;

A lever, the lever is arranged in the communication cavity, one end of the lever is hinged with a crank, and the other end is located below the gravity pressure block;

Piston, the top end of the piston is connected to the bottom end of the crank, the piston is movably plugged into the pressure cylinder, there is a seal between the piston and the pressure cylinder, and a hole is formed in the pressure cylinder below the piston. The sealed cavity is filled with compressible gas, so that the gas is introduced into the gas storage cavity to drive the piston to move downward, so that one end of the lever rises upward to provide upward pressure for the gravity pressure block. auxiliary force.

Further, the pressure cylinder above the piston is filled with viscous pressure liquid to achieve sealing between the piston and the pressure cylinder through the viscous pressure liquid.

Further, a support is provided in the communication cavity, and the lever is installed on the support.

Further, the bottom end side wall of the gravity pressure block has a receiving groove extending to the bottom surface, and one end of the lever extends into the receiving groove.

Further, the communication cavity is arranged transversely.

Further, there are multiple communicating chambers, the levers in the multiple communicating chambers are arranged at equal angles around the gravity pressure block, and the pressure cylinder is provided in each communicating chamber.

Further, the air storage chamber is connected to the air compressor unit through an energy storage pipeline, and the air storage chamber is connected to the air expansion unit through an energy release pipeline.

Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.

Description of drawings

The above and/or additional aspects and advantages of the present application will become apparent and readily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

Figure 1 is a schematic structural diagram of a gravity energy storage system based on a pressure lever proposed by an embodiment of the present application.

In the figure, 1. Shaft; 2. Lever; 3. Piston; 4. Gravity pressure block; 41. Accommodation tank; 5. Gas storage chamber; 6. Connecting chamber; 7. Pressure cylinder; 8. Crank; 9. Sealing chamber ; 10. Support.

Detailed ways

The embodiments of the present application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the drawings are exemplary and are only used to explain the present application and cannot be understood as limiting the present application. On the contrary, the embodiments of the present application include all changes, modifications and equivalents falling within the spirit and scope of the appended claims.

Figure 1 is a schematic structural diagram of a gravity energy storage system based on a pressure lever proposed by an embodiment of the present application.

Referring to Figure 1, a gravity energy storage system based on a pressure lever includes a shaft 1, a lever 2, and a piston 3. A gravity pressure block 4 is movably inserted in the shaft 1, and a gravity pressure block 4 passes between the gravity pressure block 4 and the side wall of the shaft 1. The seal is sealed and connected. The space between the gravity pressure block 4, the seal and the shaft 1 is located under the seal to form a gas storage chamber 5. The gravity pressure block 4 can move up and down in the shaft 1. Between the gravity pressure block 4 and the shaft 1 The structure of forming a piston-cylinder system, in which the sealing connection between the gravity pressure block 4 and the shaft 1 is achieved through a seal, is an existing technology and will not be described in detail here.

The bottom side wall of the shaft 1 is provided with at least one communicating chamber 6, and a pressure cylinder 7 is provided at the bottom of the communicating chamber 6. The communicating chamber 6 is connected with the gas storage chamber 5 and the pressure cylinder 7, so that the gas flowing into the gas storage chamber 5 can be Air can enter the communication chamber 6 and enter the pressure cylinder 7 through the communication chamber 6. The lever 2 is arranged in the communication chamber 6. One end of the lever 2 is hinged with a crank 8, the other end is located below the gravity pressure block 4, and the top of the piston 3 Connected to the bottom end of the crank 8, the piston 3 is movably plugged into the pressure cylinder 7. There is a seal between the piston 3 and the pressure cylinder 7. A sealing chamber 9 is formed in the pressure cylinder 7 below the piston 3. The sealing chamber 9 is filled with compressible Gas is introduced into the gas storage chamber 5 to drive the piston 3 to move downward, so that one end of the lever 2 rises upward to provide an upward force to the gravity pressure block 4, which facilitates the activation of the gravity pressure block 4.

Specifically, when compressed air is introduced into the air storage chamber 5, the compressed air in the air storage chamber 5 enters the pressure cylinder 7 above the piston 3 through the communication chamber 6, and the piston 3 moves downward under the pressure of the compressed air. To compress the compressible gas in the pressure cylinder 7, according to the lever principle, when the piston 3 moves downward, the crank 8 drives one end of the lever 2 to move downward, the other end of the lever 2 tilts upward, and the tilted end moves upward During the process, the gravity pressure block 4 exerts an upward force to provide an auxiliary force for the gravity pressure block 4 to start upward, which facilitates the start of the gravity pressure block 4 and reduces the action required when the gravity pressure block 4 moves upward. external force.

In some embodiments, the pressure cylinder 7 above the piston 3 is filled with viscous pressure liquid to achieve sealing between the piston 3 and the pressure cylinder 7 through the viscous pressure liquid. The liquid sealing effect is better. In the initial state, The gravity of the viscous pressure liquid acting on the piston 3 plus the air pressure in the pressure cylinder 7 balances the upward pressure of the compressible gas in the seal chamber 9 on the piston 3, thereby making the lever 2 in a horizontal state.

In addition, a support 10 is provided in the communication cavity 6, and the lever 2 is installed on the support 10. That is to say, the lever 2 can be hinged on the support 10, so that the connection between the lever 2 and the support 10 forms a fulcrum.

In some embodiments, the bottom side wall of the gravity pressure block 4 is provided with a receiving groove 41 extending to the bottom surface, and one end of the lever 2 extends into the receiving groove 41, so that when the end of the lever 2 is raised close to the gravity pressure block 4, Can directly act on the gravity pressure block 4.

Preferably, the communication cavity 6 is arranged transversely, and a section of the communication cavity 6 is constructed vertically directly on the side wall of the shaft 1, and then a pressure cylinder 7 is set up on the ground at the end of the communication cavity 6 away from the shaft 1. Both the pressure cylinder 7 and the shaft 1 are Set vertically, at this time, the support 10 is located in the communication cavity 6, and the lever 2 is supported by the support 10. The setting of the receiving groove 41 can ensure that one end of the lever 2 extends into the receiving groove 41, and when one end of the lever 2 is raised, it can Ensure that it acts below the gravity pressure block 4 and has an upward force on the gravity pressure block 4.

In some embodiments, multiple communication chambers 6 can be provided. The levers 2 in the multiple communication chambers 6 are arranged at equal angles around the gravity pressure block 4. A pressure cylinder 7 is provided in each communication chamber 6. Through multiple communication chambers 6, The levers 2 provided in the communication chamber 6 can exert an upward force on the gravity pressure block 4 at the same time, and since the levers 2 in the multiple communication chambers 6 are arranged at equal angles around the gravity pressure block 4, one end of the multiple levers 2 faces each other. The upward auxiliary force of the gravity pressure block 4 is uniform. When multiple communication chambers 6 are provided, multiple accommodation grooves 41 can be correspondingly provided on the bottom side wall of the gravity pressure block 4, and the plurality of accommodation grooves 41 can also be connected together. The structure forms a groove structure around the bottom circumference of the gravity pressure block 4, and the groove extends to the bottom surface of the gravity pressure block 4. When the gravity pressure block has a columnar structure, the accommodation groove 41 can be set at this time. It forms an annular groove structure surrounding the bottom end of the gravity pressure block 4.

In some embodiments, the air storage chamber 5 is connected to the air compressor unit through the energy storage pipeline, and the air storage chamber 5 is connected to the air expansion unit through the energy release pipeline, so that the electric energy-controlled air compressor unit compresses the air and passes it into the storage tank through the energy storage pipeline. In the air chamber 5, the compressed gas in the air storage chamber 5 is passed into the air expansion unit through the energy release pipeline to perform work and drive the generator to generate electricity.

In detail, the specific energy storage process of the gravity energy storage system based on the pressure lever is as follows:

In the initial state, the gravity of the viscous pressure liquid acting on the piston 3 plus the air pressure in the pressure cylinder 7 balances the upward pressure of the compressible gas in the seal chamber 9 on the piston 3, thus making the lever 2 in a horizontal state;

When the compressed air is stored, the excess electric energy drives the air compressor unit to compress the air to form compressed air. The compressed air is inflated into the air storage chamber 5 through the energy storage pipeline. The compressed air in the air storage chamber 5 enters the pressure cylinder 7 through the connecting chamber 6. , exerting downward pressure on the piston 3, causing the piston 3 to move downward in the pressure cylinder 7. During the movement, one end of the lever 2 is pulled by the crank 8 to move downward, and the other end of the lever 2 is lifted upward. During the lifting process Applying upward auxiliary force to the gravity pressure block 4 is beneficial to the activation of the gravity pressure block 4. When the piston 3 moves downward, the compressible gas under the piston 3 is compressed.

When the gravity pressure block 4 moves upward, the end of the lever 2 close to the gravity pressure block 4 also moves upward to a certain position and then stops, maintaining an inclined state.

When the expansion is done, the compressed air in the air storage chamber 5 is passed into the air expansion unit to do work, driving the generator to generate electricity, converting the thermal energy of the compressed air, the potential energy of the compressed air and the gravity potential energy of the gravity pressure block 4 into electrical energy. During the process of the compressed air in the chamber 5 doing work to the outside, the gravity pressure block 4 moves downward. When the gravity pressure block 4 moves to contact the raised end of the lever 2, the gravity pressure block 4 is supported and buffered by the raised end of the lever 2. The gravity pressure block 4 slowly moves downward to the lowest limit position.

It should be noted that in the description of this application, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Furthermore, in the description of the present application, unless otherwise stated, the meaning of “plurality” is two or more.

Any process or method descriptions in flowcharts or otherwise described herein may be understood to represent modules, segments, or portions of code that include one or more executable instructions for implementing the specified logical functions or steps of the process. , and the scope of the preferred embodiments of the present application includes additional implementations in which functions may be performed out of the order shown or discussed, including in a substantially simultaneous manner or in the reverse order, depending on the functionality involved, which shall It should be understood by those skilled in the technical field to which the embodiments of this application belong.

In the description of this specification, reference to the terms "one embodiment," "some embodiments," "an example," "specific examples," or "some examples" or the like means that specific features are described in connection with the embodiment or example. , structures, materials or features are included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments of the present application have been shown and described above, it can be understood that the above-mentioned embodiments are illustrative and cannot be understood as limitations of the present application. Those of ordinary skill in the art can make modifications to the above-mentioned embodiments within the scope of the present application. The embodiments are subject to changes, modifications, substitutions and variations.

Claims (7)

1. A gravity energy storage system based on a pressure lever, which is characterized by including: Shaft, a gravity pressure block is movably inserted in the shaft, the gravity pressure block and the side wall of the shaft are sealingly connected through a seal, the gravity pressure block, the seal and the shaft are located in the A gas storage chamber is formed between the spaces below the seals. The bottom side wall of the shaft is provided with at least one communicating cavity. A pressure cylinder is provided at the bottom of the communicating cavity. The communicating cavity is connected with the gas storage cavity; A lever, the lever is arranged in the communication cavity, one end of the lever is hinged with a crank, and the other end is located below the gravity pressure block; Piston, the top end of the piston is connected to the bottom end of the crank, the piston is movably plugged into the pressure cylinder, there is a seal between the piston and the pressure cylinder, and a hole is formed in the pressure cylinder below the piston. The sealed cavity is filled with compressible gas, so that the gas is introduced into the gas storage cavity to drive the piston to move downward, so that one end of the lever rises upward to provide upward pressure for the gravity pressure block. auxiliary force. 2. The gravity energy storage system based on the pressure lever according to claim 1, characterized in that the pressure cylinder above the piston is filled with viscous pressure liquid, so that the viscous pressure liquid realizes the Seal between the piston and the pressure cylinder. 3. The gravity energy storage system based on a pressure lever according to claim 1, characterized in that a support is provided in the communication chamber, and the lever is installed on the support. 4. The gravity energy storage system based on the pressure lever according to claim 1, characterized in that the bottom end side wall of the gravity pressure block has a receiving groove extending to the bottom surface, and one end of the lever extends into the in the holding tank. 5. The gravity energy storage system based on the pressure lever according to claim 4, characterized in that the communication chamber is arranged transversely. 6. The gravity energy storage system based on the pressure lever according to claim 1 or 4, characterized in that there are multiple connecting chambers, and the levers in the multiple connecting chambers are arranged at equal angles in the gravity-type energy storage system. On the peripheral side of the pressure block, the pressure cylinder is provided in each of the communication chambers. 7. The gravity energy storage system based on pressure levers as claimed in claim 1, wherein the air storage chamber is connected to an air compressor unit through an energy storage pipeline, and the air storage chamber is connected to an air expansion unit through an energy release pipeline. .