Combined air pressure energy storage equipment

Abstract

The utility model discloses a combined air pressure energy storage equipment, including combined gas tank, reversing valve, air compressor, output pipe and flange pipe, the output end of air compressor is communicated with reversing valve, one opening of reversing valve is provided with output pipe, another opening of reversing valve is provided with flange pipe, flange pipe is used for communicating a plurality of combined gas tanks that are connected in series, and the output pipe is provided with flange pipe. The combined gas tank is provided with a gas tank and a T-shaped combined pipe, the T-shaped combined pipe is provided with a vertical pipe and a horizontal pipe, the vertical pipe is vertically communicated with the middle of the horizontal pipe, the vertical pipe is communicated with the gas tank, the horizontal pipe is used for being connected with a horizontal pipe in another combined gas tank in series, and a plugging assembly is arranged in an opening in one end of the horizontal pipe. A driving rod extending out of the opening of the horizontal pipe is arranged in the opening in the other end of the horizontal pipe; by changing the number of the air tanks which are combined in series, when the energy storage equipment deals with electric power troughs in different seasons, the air compressor can completely utilize the whole electric power trough period, and therefore electric power is stored in a most economical mode.

Description

Technical Field

[0001] The utility model relates to the technical field of air pressure energy storage equipment, in particular to a combined air pressure energy storage equipment. Background Art

[0002] Gas pressure energy storage refers to the storage of energy by converting electricity into compressed gas. At present, energy storage equipment drives an air compressor of rated power through electricity, and the air compressor fills the gas tank with high-pressure air to achieve energy storage; however, the power grid has different periods of low power in different seasons, and the air compressor power and gas tank capacity in the energy storage equipment are fixed. This will cause the gas tank to reach the rated pressure and complete the storage of electricity before the low load period of the power grid ends, or after the low load period of the power grid ends, the gas tank has not reached the rated pressure and the internal gas tank has not completed the maximum power storage. This makes it impossible for the energy storage device to store electricity in the most economical way. Therefore, a combined gas pressure energy storage device is designed to solve the above problems. Utility Model Content

[0003] In view of the shortcomings of existing gas pressure energy storage devices, the purpose of the utility model is to provide a combined gas pressure energy storage device, which has the advantages of free combination of storage capacity and economical energy storage.

[0004] In order to achieve the above object, a technical solution adopted by the utility model is:

[0005] A combined gas pressure energy storage device, comprising a combined gas tank, a reversing valve, an air compressor, an output pipe and a flange pipe, wherein the output end of the air compressor is connected to the reversing valve, an opening of the reversing valve is provided with an output pipe, and another opening of the reversing valve is provided with a flange pipe, and the flange pipe is used to connect a plurality of combined gas tanks connected in series, the combined gas tank comprises a gas tank and a T-shaped combined pipe, the T-shaped combined pipe comprises a vertical pipe and a horizontal pipe, the vertical pipe is vertically connected in the middle of the horizontal pipe, the vertical pipe is connected to the gas tank, the horizontal pipe is used to connect in series the horizontal pipe in another combined gas tank, the opening at one end of the horizontal pipe has a plugging assembly inside, the plugging assembly is used to close the opening at one end of the horizontal pipe, the opening at the other end of the horizontal pipe has a driving rod extending out of the opening of the horizontal pipe, and the driving rod is used to open the plugging assembly in another T-shaped combined pipe;

[0006] Preferably, one end of the driving rod of the horizontal tube is connected to one end of the plugging assembly of another horizontal tube through a bolt;

[0007] Preferably, the reversing valve is used to switch the connection state between the output end of the air compressor, the output pipe and the flange pipe. When the reversing valve is in the energy storage process, the output end of the air compressor is connected to the flange pipe. When the reversing valve is in the power generation state, the output pipe is connected to the flange pipe. When the reversing valve is in the storage state, the flange pipe is blocked.

[0008] Preferably, the plugging assembly comprises a conical plug, a spring, a guide bracket and a guide rod, the bottom end surface of the conical plug is provided with a guide rod, the guide rod slides axially along the horizontal tube through the guide bracket arranged in the horizontal tube, the spring is arranged between the conical plug and the guide bracket, and the spring forces the conical plug to plug the horizontal tube;

[0009] Preferably, the outer wall of the gas tank is also covered with a connecting plate for fixed connection with an adjacent gas tank;

[0010] The beneficial effects of the utility model are: 1. By changing the number of series-connected gas tanks, the energy storage device can adapt to the power storage capacity of the entire low-power period when dealing with power lows in different seasons; 2. By changing the number of gas storage tanks to match power lows in different seasons, the air compressor can be fully utilized during the entire power low period, thereby storing electricity in the most economical way. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a cross-sectional structural view of the utility model;

[0012] Figure 2 This is a cross-sectional structural view of the combined gas tank of the utility model;

[0013] Figure 3 For this utility model Figure 1 A local magnified view of the middle I area;

[0014] Figure 4 For this utility model Figure 2 A local magnified view of area II. DETAILED DESCRIPTION

[0015] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0016] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside", and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0017] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "provided with", and "set" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0018] See also Figures 1 to 4 , the utility model embodiment includes:

[0019] A combined gas pressure energy storage device, comprising a combined gas tank 1, a reversing valve 2, an air compressor 3, an output pipe 4 and a flange pipe 5, wherein the output end of the air compressor 3 is connected to the reversing valve 2, an opening of the reversing valve 2 is provided with an output pipe 4, and another opening of the reversing valve 2 is provided with a flange pipe 5, wherein the flange pipe 5 is used to connect a plurality of combined gas tanks 1 in series, wherein the combined gas tank 1 has a gas tank 6 and a T-shaped combined pipe 7, wherein the T-shaped combined pipe 7 has a vertical pipe 71 and a horizontal pipe 72, wherein the vertical pipe 71 is vertically connected to the middle of the horizontal pipe 72, wherein the vertical pipe 71 is connected to the gas tank 6, wherein the horizontal pipe 72 is used to connect in series a horizontal pipe 72 in another combined gas tank 1, wherein a plugging component 8 is provided inside an opening at one end of the horizontal pipe 72, wherein a driving rod 9 extending from the opening of the horizontal pipe 72 is provided inside an opening at the other end of the horizontal pipe 72, wherein the driving rod 9 is used to open the plugging component 8 in another T-shaped combined pipe 7;

[0020] The horizontal tube 72 has a driving rod 9 at one end which is connected to another horizontal tube 72 at one end of a plugging assembly 8 through a bolt;

[0021] The reversing valve 2 is used to switch the connection state between the output end of the air compressor 3, the output pipe 4 and the flange pipe 5. When the reversing valve 2 is in the energy storage process, the output end of the air compressor 3 is connected to the flange pipe 5. When the reversing valve 2 is in the power generation state, the output pipe 4 is connected to the flange pipe 5. When the reversing valve 2 is in the storage state, the flange pipe 5 is blocked.

[0022] The blocking assembly 8 comprises a conical blocking plug 81, a spring 82, a guide bracket 83 and a guide rod 84. The bottom end surface of the conical blocking plug 81 is provided with a guide rod 84. The guide rod 84 slides axially along the horizontal tube 72 through the guide bracket 83 provided in the horizontal tube 72. The spring 82 is provided between the conical blocking plug 81 and the guide bracket 83. The spring 82 forces the conical blocking plug 81 to block the horizontal tube 72.

[0023] The outer wall of the gas tank 6 is also covered with a connecting plate 61 for fixed connection with an adjacent gas tank 6;

[0024] Through the above settings, in the actual working process, its specific working principle is as follows:

[0025] When the energy storage device is used to cope with the low power periods in different seasons, when the gas storage tank 6 is not full of high-pressure air, the number of series-connected gas tanks 1 is changed so that the working time of the air compressor 3 covers the entire low power period, thereby storing electricity in the most economical way;

[0026] When the gas cylinders 1 are combined in series, the horizontal tubes 72 in the T-shaped combined tubes 7 on both sides are connected, so that the driving rod 9 in the horizontal tube 72 on one side abuts against the top of the conical sealing plug 81 in the horizontal tube 72 on the other side. After the horizontal tubes 72 on both sides are completely locked by bolts, the driving rod 9 forces the conical sealing plug 81 in the horizontal tube 72 to move axially and compress the spring 82. At this time, the conical sealing plug 81 no longer blocks the horizontal tube 72, and the horizontal tubes 72 on both sides are in a connected state.

[0027] Grid low load energy storage state: first switch the reversing valve 2 to connect the output end of the air compressor 3 with the flange pipe 5, then start the air compressor 3, and the air compressor 3 forces the air storage tank 6 to be filled with high-pressure air through multiple T-shaped combination pipes 7 connected to the flange pipe 5. When the pressure of all the air storage tanks 6 in the energy storage device reaches the rated pressure, switch the reversing valve 2 again to block the flange pipe 5. At this time, the energy storage device completes the energy storage during the grid load low period;

[0028] Grid peak power generation state: First, use a pipeline to connect the output pipe 4 with the external turbine power generation input end, then switch the reversing valve 2 to connect the output pipe 4 with the flange pipe 5, so as to achieve the goal of releasing compressed air to drive the turbine to generate electricity;

[0029] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A combined gas pressure energy storage device, characterized in that: It includes a combined gas tank, a reversing valve, an air compressor, an output pipe and a flange pipe, the output end of the air compressor is connected to the reversing valve, one opening of the reversing valve is provided with an output pipe, the other opening of the reversing valve is provided with a flange pipe, the flange pipe is used to connect multiple combined gas tanks connected in series, the combined gas tank has a gas tank and a T-shaped combined pipe, the T-shaped combined pipe has a vertical pipe and a horizontal pipe, the vertical pipe is vertically connected in the middle of the horizontal pipe, the vertical pipe is connected to the gas tank, the horizontal pipe is used to connect in series the horizontal pipe in another combined gas tank, the opening at one end of the horizontal pipe has a plugging assembly inside, the plugging assembly is used to close the opening at one end of the horizontal pipe, the opening at the other end of the horizontal pipe has a driving rod extending out of the opening of the horizontal pipe, the driving rod is used to open the plugging assembly in another T-shaped combined pipe.

2. A combined gas pressure energy storage device according to claim 1, characterized in that: The horizontal tube has a driving rod at one end which is connected to another horizontal tube at one end of a plugging assembly through a bolt.

3. A combined gas pressure energy storage device according to claim 1, characterized in that: The reversing valve is used to switch the connection status between the output end of the air compressor, the output pipe and the flange pipe. When the reversing valve is in the energy storage process, the output end of the air compressor and the flange pipe are connected. When the reversing valve is in the power generation state, the output pipe and the flange pipe are connected. When the reversing valve is in the storage state, the flange pipe is blocked.

4. A combined gas pressure energy storage device according to claim 1, characterized in that: The sealing assembly comprises a conical sealing plug, a spring, a guide bracket and a guide rod. The bottom end surface of the conical sealing plug is provided with a guide rod, and the guide rod slides axially along the horizontal tube through the guide bracket arranged in the horizontal tube. The spring is arranged between the conical sealing plug and the guide bracket, and the spring forces the conical sealing plug to seal the horizontal tube.

5. A combined gas pressure energy storage device according to claim 1, characterized in that: The outer wall of the gas tank is also covered with a connecting plate for fixed connection with an adjacent gas tank.

Images