Flywheel energy storage equipment

Abstract

The utility model relates to the technical field of energy storage equipment, in particular to flywheel energy storage equipment which comprises an energy storage shell, a protection mechanism is arranged on the outer wall of the energy storage shell, constant pressure mechanisms are arranged on the outer wall of the energy storage shell and located above and below the protection mechanism, a rotating shaft is rotationally connected to the interior of the energy storage shell, and a flywheel is arranged in the rotating shaft. An energy storage flywheel is fixedly connected to the position, corresponding to the protection mechanism, of the outer wall of the rotating shaft, and a reciprocal bidirectional motor is installed on the position, above the energy storage flywheel, of the outer wall of the rotating shaft. By means of the design that a buffer plate and a piston plate in the protection mechanism enable the buffer plate to absorb impact force of splashed fragments through a throttling structure, the problems that an existing flywheel energy storage device is not provided with a protection mechanism, when flywheel fragments are splashed outwards due to the fact that a flywheel is broken due to high-speed rotation, the splashed fragments cannot be well blocked, and the service life of the flywheel energy storage device is prolonged are solved. And external personnel and equipment are easily damaged.

Description

TECHNICAL FIELD

[0001] The utility model relates to energy storage device technical field, concretely is a flywheel energy storage device. BACKGROUND

[0002] Flywheel energy storage device is to utilize flywheel rotation to carry out the device of energy storage, for example, the flywheel energy storage system provided in application No. 202322050872.6, it includes cooling module, heat conduction core piece and hollow rotating shaft, one end of heat conduction core piece is connected with cooling module located outside hollow rotating shaft, heat conduction core piece extends into hollow rotating shaft, the utility model enhances the heat dissipation capacity of flywheel energy storage system, simultaneously has low loss, the advantage of strong implementability, low cost.

[0003] But the existing flywheel energy storage device still has some deficiencies, specifically, the existing flywheel energy storage device does not have a protection mechanism, when the flywheel is broken due to high-speed rotation and causes flywheel fragments to splash outward, the splashed fragments cannot be well blocked, which can easily cause harm to personnel and equipment outside.

[0004] Therefore, a flywheel energy storage device is needed to solve the problems raised in the background. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a flywheel energy storage device to solve the problems raised in the background.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A flywheel energy storage device, comprising an energy storage shell, a protection mechanism is arranged on the outer wall of the energy storage shell, a constant pressure mechanism is arranged on the outer wall of the energy storage shell above and below the protection mechanism, a rotating shaft is rotatably connected inside the energy storage shell, an energy storage flywheel is fixedly connected to the outer wall of the rotating shaft at the corresponding position of the protection mechanism, a bidirectional motor of mutual opposition type is installed on the outer wall of the rotating shaft above the energy storage flywheel, a magnetic bearing is installed on the inner wall of the energy storage shell away from the energy storage flywheel, and a protection bearing is fixedly connected inside the energy storage shell close to the magnetic bearing.

[0008] The protection mechanism comprises a protection box fixedly connected to the outer wall of the energy storage shell, a sliding rod slidingly connected to the inside of the protection box and close to the energy storage shell, a buffer plate fixedly connected to the outer wall of the sliding rod and in the energy storage shell, a protection pad fixedly connected to the outer wall of the buffer plate, a buffer fluid filled in the protection pad, a piston plate fixedly connected to the outer wall of the sliding rod and in the protection box, a fixed sleeve slidingly connected to the inside of the piston plate and in the protection box, a throttling hole formed in the top of the inner wall of the fixed sleeve, a flow guide pipe fixedly connected to the outer wall of the fixed sleeve and at the position corresponding to the throttling hole, a liquid storage sleeve fixedly connected to the top of the flow guide pipe and in the protection box, an outer one-way valve mounted in the flow guide pipe, an oil pressure sensor mounted in the liquid storage sleeve, a liquid discharge pipe fixedly connected to the inside of the liquid storage sleeve and outside the protection box, a stop valve fixedly connected to the inside of the liquid discharge pipe and outside the protection box, and a terminal post mounted on the outer wall of the protection box.

[0009] As the preferred scheme of the utility model, the constant pressure mechanism comprises a constant pressure box fixedly connected to the outer wall of the energy storage shell, an exhaust pipe fixedly connected to the inside of the constant pressure box and close to the energy storage shell, an inner one-way valve mounted in the exhaust pipe, an air extraction pipe fixedly connected to the outer wall of the constant pressure box, an electromagnetic valve fixedly connected to the inside of the air extraction pipe and outside the constant pressure box, a support frame fixedly connected to the inside of the constant pressure box, a pressure gauge fixedly connected to the outer wall of the constant pressure box and away from the exhaust pipe, a storage battery mounted in the constant pressure box, and an electronic button fixedly connected to the outer wall of the constant pressure box and close to the air extraction pipe.

[0010] As the preferred scheme of the utility model, the energy storage shell is made of stainless steel, the constant pressure mechanism is provided with multiple groups, the magnetic bearing and the protection bearing are both provided with two groups, the connection mode of the magnetic bearing, the protection bearing and the rotating shaft is all rotary connection, and the connection mode of the bidirectional motor and the energy storage shell is fixed connection.

[0011] As the preferred scheme of the utility model, the protection box, the sliding rod, the buffer plate and the fixed sleeve are all made of stainless steel, the protection box is designed as an annular structure, the buffer plate, the protection pad, the fixed sleeve and the liquid storage sleeve are all provided with eight groups, and the connection mode of the buffer plate and the energy storage shell and the sliding rod and the fixed sleeve is all sliding connection.

[0012] As the preferred scheme of the utility model, the piston plate and the protection pad are both made of silica gel, the throttling hole and the flow guide pipe are all provided with multiple groups, the liquid discharge pipe penetrates through the liquid storage sleeve and extends to outside the protection box, and the connection mode of the liquid storage sleeve, the fixed sleeve and the protection box is fixed connection.

[0013] As the preferred scheme of the utility model, the buffer fluid is non-Newtonian fluid, the outer one-way valve only allows fluid to flow into the liquid storage sleeve, the fixed sleeve and the liquid storage sleeve are filled with hydraulic oil, and the oil pressure sensor and the terminal post are electrically connected.

[0014] As the preferred scheme of the utility model, the constant pressure box and the support frame are made of stainless steel, the constant pressure box is designed as a spherical structure, the exhaust pipe penetrates and extends into the energy storage shell, and the inner one-way valve only allows air to flow into the constant pressure box.

[0015] As the preferred scheme of the utility model, the air exhaust pipe penetrates and extends outside the constant pressure box, the support frame is designed as a Chinese character'mi' structure, and the connection modes of the battery, the electromagnetic valve and the electronic button are electrically connected.

[0016] The utility model discloses a protection mechanism is arranged on the outer wall of energy storage shell, buffer plate and piston plate in protection mechanism pass through the throttle structure to make the design that buffer plate can absorb the impact of splashing fragments, when the energy storage flywheel breaks because of high -speed rotation in the use process of energy storage shell, buffer plate can resist the splashing fragments, prevents the splashing fragments from flying everywhere, solves the problem that the existing flywheel energy storage equipment does not have protection mechanism, when the flywheel breaks because of high -speed rotation and causes the flywheel fragments to splash outward, the splashing fragments cannot be well blocked, and the personnel and equipment of outside are easy to cause the harm.

[0017] The utility model discloses a constant pressure mechanism is arranged in energy storage shell, exhaust pipe and constant pressure box in constant pressure mechanism pass through the flow guide structure to make the design that the air entering the energy storage shell can flow into the constant pressure box, when the energy storage shell is used, the outside shell that enters the energy storage shell can provide exhaust pipe and timely discharge, avoid the outside air to enter the energy storage shell and influence flywheel rotation, solve the problem that the existing energy storage equipment is used, and the outside air is easy to penetrate and enter the inside, causes the vacuum degree in energy storage shell to change, increases the friction of flywheel rotation, and influences flywheel rotation efficiency. ACCOUT OF DRAWINGS

[0018] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0019] Figure 2 It is the front view of the utility model;

[0020] Figure 3 It is the utility model Figure 2 The enlarged view of A in the utility model;

[0021] Figure 4 It is the utility model Figure 2 The enlarged view of B in the utility model;

[0022] Figure 5 It is the front view of the constant pressure box.

[0023] In the figure: 1, energy storage shell; 2, protection mechanism; 3, constant pressure mechanism; 4, rotating shaft; 5, energy storage flywheel; 6, reciprocal bidirectional motor; 7, magnetic bearing; 8, protection bearing; 201, protection box; 202, sliding rod; 203, buffer plate; 204, protection pad; 205, buffer fluid; 206, piston plate; 207, fixed sleeve; 208, throttle hole; 209, flow guide pipe; 210, liquid storage sleeve; 211, outer check valve; 212, oil pressure sensor; 213, liquid discharge pipe; 214, stop valve; 215, terminal post; 301, constant pressure box; 302, exhaust pipe; 303, inner check valve; 304, air extraction pipe; 305, electromagnetic valve; 306, support frame; 307, pressure gauge; 308, battery; 309, electronic button. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0025] Embodiment, please refer to Figures 1-5 , the present application provides a technical scheme:

[0026] A flywheel energy storage device, comprising an energy storage shell 1, the outer wall of the energy storage shell 1 is provided with a protection mechanism 2, the outer wall of the energy storage shell 1 and above and below the protection mechanism 2 are provided with constant pressure mechanism 3, the inside of the energy storage shell 1 is rotatably connected with rotating shaft 4, the outer wall of the rotating shaft 4 and the corresponding position of the protection mechanism 2 are fixedly connected with energy storage flywheel 5, the outer wall of the rotating shaft 4 and above the energy storage flywheel 5 are installed with reciprocal bidirectional motor 6, the inner wall of the energy storage shell 1 and away from the position of the energy storage flywheel 5 are installed with magnetic bearing 7, the inside of the energy storage shell 1 and close to the position of the magnetic bearing 7 are fixedly connected with protection bearing 8; wherein the energy storage shell 1 is made of stainless steel, the constant pressure mechanism 3 is provided with multiple groups, the magnetic bearing 7 and the protection bearing 8 are both provided with two groups, the connection mode of the magnetic bearing 7, the protection bearing 8 and the rotating shaft 4 is all rotating connection, the connection mode of the reciprocal bidirectional motor 6 and the energy storage shell 1 is fixed connection.

[0027] In this embodiment, reference is made to Figure 2 , Figure 3 and Figure 4The protection mechanism 2 comprises a protection box 201 fixedly connected to the outer wall of the energy storage shell 1, a sliding rod 202 slidingly connected inside the protection box 201 and close to the energy storage shell 1, a buffer plate 203 fixedly connected to the outer wall of the sliding rod 202 and inside the energy storage shell 1, a protection pad 204 fixedly connected to the outer wall of the buffer plate 203, a buffer fluid 205 filled inside the protection pad 204, a piston plate 206 fixedly connected to the outer wall of the sliding rod 202 and inside the protection box 201, a fixed sleeve 207 slidingly connected inside the protection box 201 and to the piston plate 206, a throttling hole 208 formed in the top of the inner wall of the fixed sleeve 207, a flow guide pipe 209 fixedly connected to the outer wall of the fixed sleeve 207 and at the position corresponding to the throttling hole 208, a liquid storage sleeve 210 fixedly connected to the top end of the flow guide pipe 209 and inside the protection box 201, an outer one-way valve 211 mounted inside the flow guide pipe 209, an oil pressure sensor 212 mounted inside the liquid storage sleeve 210, a drainage pipe 213 fixedly connected inside the protection box 201 and to the liquid storage sleeve 210, a stop valve 214 fixedly connected to the outside of the protection box 201 and to the drainage pipe 213, and a terminal post 215 mounted to the outer wall of the protection box 201.

[0028] The protection box 201, the sliding rod 202, the buffer plate 203 and the fixed sleeve 207 are all made of stainless steel, the protection box 201 has an annular structure, the buffer plate 203, the protection pad 204, the fixed sleeve 207 and the liquid storage sleeve 210 are all provided with eight groups, the buffer plate 203 and the energy storage shell 1 are slidingly connected, the sliding rod 202 and the fixed sleeve 207 are slidingly connected, the piston plate 206 and the protection pad 204 are both made of silica gel, the throttling hole 208 and the flow guide pipe 209 are both provided with multiple groups, the drainage pipe 213 penetrates through the liquid storage sleeve 210 and extends to the outside of the protection box 201, the liquid storage sleeve 210, the fixed sleeve 207 and the protection box 201 are fixedly connected, the buffer fluid 205 is a non-Newtonian fluid, the outer one-way valve 211 only allows fluid to flow into the liquid storage sleeve 210, the fixed sleeve 207 and the liquid storage sleeve 210 are both filled with hydraulic oil, and the oil pressure sensor 212 and the terminal post 215 are electrically connected.

[0029] In this embodiment, reference is made to Figure 2 and Figure 5The constant pressure mechanism 3 comprises a constant pressure box 301 fixedly connected to the outer wall of the energy storage shell 1, an exhaust pipe 302 fixedly connected to the inside of the constant pressure box 301 and close to the energy storage shell 1, an inner one-way valve 303 installed in the inside of the exhaust pipe 302, an air extraction pipe 304 fixedly connected to the outer wall of the constant pressure box 301, an electromagnetic valve 305 fixedly connected to the inside of the air extraction pipe 304 and outside the constant pressure box 301, a support frame 306 fixedly connected to the inside of the constant pressure box 301, a pressure gauge 307 fixedly connected to the outer wall of the constant pressure box 301 and away from the exhaust pipe 302, a storage battery 308 installed in the inside of the constant pressure box 301, and an electronic button 309 fixedly connected to the outer wall of the constant pressure box 301 and close to the air extraction pipe 304.

[0030] The constant pressure box 301 and the support frame 306 are made of stainless steel, the constant pressure box 301 is of a spherical structure, the exhaust pipe 302 penetrates and extends into the energy storage shell 1, the inner one-way valve 303 only allows air to flow into the constant pressure box 301, the air extraction pipe 304 penetrates and extends outside the constant pressure box 301, the support frame 306 is of a Chinese character-shaped structure, and the storage battery 308 and the electromagnetic valve 305 are electrically connected with the electronic button 309.

[0031] The working process of the utility model is as follows: when the flywheel energy storage equipment designed by the scheme is running, the energy storage shell 1 is installed at a proper position, during energy storage, the reciprocal bidirectional motor 6 provides the rotating shaft 4 to drive the energy storage flywheel 5 to rotate at a high speed, converts the electric energy into the mechanical energy of the energy storage flywheel 5, when electricity is needed, the rotating speed of the energy storage flywheel 5 is reduced, the reciprocal bidirectional motor 6 converts the mechanical energy of the energy storage flywheel 5 into the electric energy and outputs the electric energy to the electric circuit; the vacuum pump and the air extraction pipe 304 are connected by using the connecting hose, the vacuum pump is started, the vacuum pump draws the vacuum in the constant pressure box 301 through the air extraction pipe 304, and the vacuum degree in the constant pressure box 301 is matched with the vacuum degree in the energy storage shell 1.

[0032] When the energy storage flywheel 5 is broken due to high-speed rotation, the fragments generated by the breakage will fly outward at high speed, and the high-speed flying fragments will first hit the protective pad 204 on the outer wall of the buffer plate 203, and the buffer fluid 205 made of non-Newtonian fluid in the protective pad 204 will increase in viscosity after being impacted by the impact force of the high-speed impact of the fragments, and the buffer fluid 205 with increased viscosity will stick to the fragments, and the momentum in the high-speed flying fragments will be transmitted to the buffer plate 203, so that the buffer plate 203 moves outward, and the sliding rod 202 drives the piston plate 206 to move outward, and the piston plate 206 moving outward will extrude the hydraulic oil in the fixed sleeve 207, and the hydraulic oil will flow into the liquid storage sleeve 210 along the throttle hole 208 and the flow guide pipe 209 after being extruded, and as the piston plate 206 gradually moves outward, the number of throttle holes 208 in the fixed sleeve 207 for the hydraulic oil to flow out gradually decreases, the total cross-sectional area of the throttle holes 208 decreases, and the throttling effect of the hydraulic oil increases, so that the hydraulic oil pressure of the fixed sleeve 207 gradually increases, and after the hydraulic oil pressure gradually increases, the pressure on the piston plate 206 increases, and the gradually increasing pressure will gradually slow down the moving speed of the piston plate 206, so that the piston plate 206 gradually stops, and the oil pressure sensor 212 detects that the oil pressure in the liquid storage sleeve 210 increases, and the oil pressure sensor 212 sends a signal to the monitoring background, prompting the maintenance personnel that the energy storage flywheel 5 is broken.

[0033] When the outside air flows into the energy storage shell 1, the vacuum degree in the energy storage shell 1 changes, and the air in the energy storage shell 1 will flow into the constant pressure box 301 through the exhaust pipe 302, so that the vacuum degree in the energy storage shell 1 remains constant, and when the maintenance personnel performs maintenance, the vacuum pump is used to exhaust the air in the constant pressure box 301, so that the vacuum degree of the constant pressure box 301 remains consistent with the vacuum degree of the energy storage shell 1.

[0034] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and modifications can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A flywheel energy storage apparatus comprising an energy storage housing (1) characterised in that: The outer wall of the energy storage shell (1) is provided with a protection mechanism (2), the outer wall of the energy storage shell (1) and above and below the protection mechanism (2) are provided with constant pressure mechanism (3), the inner of the energy storage shell (1) is rotatably connected with a rotating shaft (4), the outer wall of the rotating shaft (4) and the corresponding position of the protection mechanism (2) are fixedly connected with an energy storage flywheel (5), the outer wall of the rotating shaft (4) and above the energy storage flywheel (5) are installed with a mutual reverse type bidirectional motor (6), the inner wall of the energy storage shell (1) and away from the energy storage flywheel (5) position is installed with a magnetic bearing (7), the inside of the energy storage shell (1) and close to the magnetic bearing (7) position is fixedly connected with a protection bearing (8); The protection mechanism (2) includes a protection box (201) fixedly connected to the outer wall of the energy storage shell (1), a sliding rod (202) slidably connected inside the protection box (201) and close to the energy storage shell (1), a buffer plate (203) fixedly connected to the outer wall of the sliding rod (202) and inside the energy storage shell (1), a protection pad (204) fixedly connected to the outer wall of the buffer plate (203), a buffer fluid (205) filled in the protection pad (204), a piston plate (206) fixedly connected to the outer wall of the sliding rod (202) and inside the protection box (201), a fixed sleeve (207) slidably connected inside the piston plate (206) and inside the protection box (201), a throttle hole (208) opened at the top of the inner wall of the fixed sleeve (207), a flow guide pipe (209) fixedly connected to the outer wall of the fixed sleeve (207) and at the corresponding position of the throttle hole (208), a liquid storage sleeve (210) fixedly connected to the top end of the flow guide pipe (209) and inside the protection box (201), an outer one-way valve (211) installed inside the flow guide pipe (209), an oil pressure sensor (212) installed inside the liquid storage sleeve (210), a drainage pipe (213) fixedly connected inside the liquid storage sleeve (210), a stop valve (214) fixedly connected inside the drainage pipe (213) and outside the protection box (201), and a terminal post (215) installed on the outer wall of the protection box (201).

2. A flywheel energy storage apparatus according to claim 1, wherein: The constant pressure mechanism (3) includes a constant pressure box (301) fixedly connected to the outer wall of the energy storage shell (1), an exhaust pipe (302) fixedly connected inside the constant pressure box (301) and close to the energy storage shell (1), an inner one-way valve (303) mounted inside the exhaust pipe (302), an air extraction pipe (304) fixedly connected to the outer wall of the constant pressure box (301), an electromagnetic valve (305) fixedly connected inside the air extraction pipe (304) and outside the constant pressure box (301), a support frame (306) fixedly connected inside the constant pressure box (301), a pressure gauge (307) fixedly connected to the outer wall of the constant pressure box (301) and away from the exhaust pipe (302), a storage battery (308) mounted inside the constant pressure box (301), and an electronic button (309) fixedly connected to the outer wall of the constant pressure box (301) and close to the air extraction pipe (304).

3. A flywheel energy storage apparatus according to claim 1, wherein: The energy storage shell (1) is made of stainless steel, the constant pressure mechanism (3) is provided with multiple groups, the magnetic bearing (7) and the protection bearing (8) are each provided with two groups, the magnetic bearing (7), the protection bearing (8) and the rotating shaft (4) are all in rotary connection, and the reciprocal bidirectional motor (6) and the energy storage shell (1) are in fixed connection.

4. A flywheel energy storage apparatus according to claim 1, wherein: The protection box (201), the sliding rod (202), the buffer plate (203) and the fixed sleeve (207) are all made of stainless steel, the protection box (201) is designed in an annular structure, the buffer plate (203), the protection pad (204), the fixed sleeve (207) and the liquid storage sleeve (210) are all provided with eight groups, and the buffer plate (203) and the energy storage shell (1) and the sliding rod (202) and the fixed sleeve (207) are all in sliding connection.

5. A flywheel energy storage apparatus according to claim 1, wherein: The piston plate (206) and the protection pad (204) are both made of silica gel, the throttle hole (208) and the flow guide pipe (209) are both provided with multiple groups, the liquid discharge pipe (213) penetrates through the liquid storage sleeve (210) and extends out of the protection box (201), and the liquid storage sleeve (210), the fixed sleeve (207) and the protection box (201) are all in fixed connection.

6. A flywheel energy storage apparatus according to claim 1, wherein: The buffer fluid (205) is a non-Newtonian fluid, the outer one-way valve (211) only allows fluid to flow into the liquid storage sleeve (210), the fixed sleeve (207) and the liquid storage sleeve (210) are both filled with hydraulic oil, and the oil pressure sensor (212) and the terminal post (215) are in electrical connection.

7. A flywheel energy storage apparatus according to claim 2, wherein: The constant pressure box (301) and the support frame (306) are both made of stainless steel, the constant pressure box (301) is designed in a spherical structure, the exhaust pipe (302) penetrates through and extends into the energy storage shell (1), and the inner one-way valve (303) only allows air to flow into the constant pressure box (301).

8. A flywheel energy storage apparatus according to claim 2, wherein: The suction pipe (304) passes through and extends to the outside of the constant pressure box (301). The support frame (306) has a star-shaped structure design. The battery (308), the solenoid valve (305), and the electronic button (309) are all electrically connected.

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