CN217545782U - Flywheel energy storage device - Google Patents
Flywheel energy storage device Download PDFInfo
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- CN217545782U CN217545782U CN202221327940.8U CN202221327940U CN217545782U CN 217545782 U CN217545782 U CN 217545782U CN 202221327940 U CN202221327940 U CN 202221327940U CN 217545782 U CN217545782 U CN 217545782U
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Abstract
The utility model discloses a flywheel energy memory, include: the closed shell is internally provided with a motor, a flywheel rotor, an end seat and a gas adsorption component; the motor is used for driving the flywheel rotor to rotate; the end seat is fixedly connected with the closed shell, the end seat is sleeved outside the flywheel rotor, and a gap is formed between the end seat and the flywheel rotor; the end seat and the flywheel rotor divide the inner cavity of the closed shell into a first cavity and a second cavity, the motor is fixed in the first cavity, and the gas adsorption component is positioned in the second cavity; the inner wall of the end seat is provided with at least one flow passage which is communicated with the first cavity and the second cavity so that gas in the first cavity flows into the second cavity in the rotation process of the flywheel rotor. The flywheel energy storage device can realize self-vacuumizing without a mechanical vacuum pump, so that the cost is reduced; the vacuum degree of the first chamber is reduced, and the wind friction loss of the flywheel rotor is reduced; the possibility of outside air entering the interior of the flywheel energy storage device is eliminated.
Description
Technical Field
The utility model relates to an energy storage technology field, more specifically say, relate to a flywheel energy memory.
Background
The flywheel energy storage device realizes the mutual conversion and storage between electric energy and mechanical kinetic energy through the electric/power generation mutual-inverse type bidirectional motor, and is popularized and used due to the advantages of high energy storage density, long service life and the like.
In a flywheel energy storage device, in order to reduce wind friction loss during operation of a motor, self-vacuum pumping is required to improve a vacuum environment. At present, the flywheel energy storage device is mainly vacuumized by an external mechanical vacuum pump, and because the vacuum chamber of the flywheel energy storage device is large and limited by the capacity of the mechanical vacuum pump, a plurality of mechanical vacuum pumps are usually needed, so that the cost is high.
In addition, limited by the capacity of the mechanical vacuum pump, the vacuum degree in the flywheel energy storage device cannot be pumped to below 1Pa, so that the wind friction loss of the flywheel rotor is large, and the energy storage efficiency of the whole flywheel energy storage device is low.
In summary, how to achieve self-vacuum pumping of the flywheel energy storage device to reduce the cost is a problem to be solved urgently by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention provides a flywheel energy storage device to reduce the cost.
In order to achieve the above object, the utility model provides a following technical scheme:
a flywheel energy storage device comprising: the closed shell is internally provided with a motor, a flywheel rotor, an end seat and a gas adsorption component;
wherein the motor is used for driving the flywheel rotor to rotate;
the end seat is fixedly connected with the closed shell, the end seat is sleeved outside the flywheel rotor, and a gap is formed between the end seat and the flywheel rotor;
the end seat and the flywheel rotor divide the inner cavity of the closed shell into a first cavity and a second cavity, the motor is fixed in the first cavity, and the gas adsorption component is positioned in the second cavity;
the inner wall of the end seat is provided with at least one flow passage, and the flow passage is communicated with the first cavity and the second cavity so that gas in the first cavity flows into the second cavity in the rotation process of the flywheel rotor.
Optionally, the flow cross section of the flow channel is gradually reduced from the inlet of the flow channel to the outlet of the flow channel, and the flow cross section of the flow channel is perpendicular to the flow direction at the position of the flow channel.
Optionally, the depth of the flow channel gradually decreases from the inlet of the flow channel to the outlet of the flow channel;
and/or the length of the flow channel in the circumferential direction of the end seat is gradually reduced from the inlet of the flow channel to the outlet of the flow channel.
Optionally, the flow channel is a spiral flow channel, and a spiral direction of the spiral flow channel is consistent with a rotation direction of the flywheel rotor;
and/or at least two flow passages are uniformly distributed along the circumferential direction of the end seat;
and/or the flywheel rotor is provided with a boss, and the end seat is sleeved outside the flywheel rotor at the boss.
Optionally, the flywheel energy storage device further comprises a blocking member disposed in the second chamber, and the blocking member is configured to block the gas adsorbing member from falling into the flow passage and a gap between the end seat and the flywheel rotor.
Optionally, the blocking member is sleeved outside the flywheel rotor and an outlet of the flow channel, the gas adsorbing member is located on the periphery of the blocking member, a flow guide channel is formed between the blocking member and the flywheel rotor, and a flow guide hole is formed in a circumferential side wall of the blocking member.
Optionally, one end of the blocking member is provided with a first flange, the other end of the blocking member is provided with a second flange, the second flange is located at the end seat, and the first flange is fixedly connected with the closed shell.
Optionally, the gas adsorbing member is a molecular sieve;
and/or the motor is sleeved outside the flywheel rotor, the rotor of the motor is fixedly connected with the flywheel rotor, and two ends of the flywheel rotor are rotatably arranged on the closed shell.
Optionally, the closure housing comprises: a base, a housing, and a top cover;
one end of the shell is hermetically and fixedly connected with the base, and the other end of the shell is hermetically and fixedly connected with the top cover;
the end seat and the shell are in sealing connection and fixed connection, and/or the end seat and the top cover are in sealing connection and fixed connection.
Optionally, if the end seat and the housing are connected in a sealing manner and fixedly connected, the end seat is provided with a mounting flange, a mounting groove matched with the mounting flange is formed in the housing, and the mounting flange is fixed in the mounting groove.
The utility model provides a flywheel energy memory's self-vacuum pumping principle does:
the motor drives the flywheel rotor to rotate at a high speed, along with the high-speed rotation of the flywheel rotor, the gas in the first cavity obtains momentum, the gas obtaining kinetic energy flows along the flow channel and flows to the second cavity, and the gas adsorption component positioned in the second cavity adsorbs the gas in the second cavity, so that the gas in the first cavity is moved to the second cavity and is adsorbed by the gas adsorption component, and the self-vacuumizing of the first cavity is realized.
According to the self-vacuumizing principle, the flywheel energy storage device provided by the utility model can realize self-vacuumizing without a mechanical vacuum pump, and compared with the prior art, the cost is reduced; meanwhile, through the combined action of the high-speed rotation of the flywheel rotor, the closed shell, the flow channel and the gas adsorption component, the vacuumizing is realized, compared with the mechanical vacuum pump, the vacuum degree of the first cavity can be reduced, the vacuum degree in the first cavity can be smaller than 1Pa, the wind friction loss of the flywheel rotor is reduced, and the energy storage efficiency of the whole flywheel energy storage device is improved.
And simultaneously, the utility model provides an among the flywheel energy memory, the seal shell surrounds other parts for the inside and the external world of seal shell do not have the intercommunication, and the inside and the external world of seal shell do not have gas exchange promptly, have eliminated the possibility that the outside air got into the inside of flywheel energy memory, have improved the reliability from the evacuation.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a flywheel energy storage device according to an embodiment of the present invention;
FIG. 2 isbase:Sub>A sectional view taken along line A-A of FIG. 1;
fig. 3 is a schematic structural diagram of an end seat in a flywheel energy storage device according to an embodiment of the present invention;
fig. 4 is a top view of an end seat in a flywheel energy storage device according to an embodiment of the present invention;
FIG. 5 is a sectional view taken along line B-B of FIG. 4;
fig. 6 is a bottom view of an end seat in a flywheel energy storage device according to an embodiment of the present invention;
fig. 7 is a front view of a blocking member in a flywheel energy storage device according to an embodiment of the present invention;
fig. 8 is a top view of a blocking member in a flywheel energy storage device according to an embodiment of the present invention.
In fig. 1-8:
1 is a closed shell, 11 is a top cover, 12 is a shell, 121 is a reinforcing rib, 13 is a base, 14 is a first chamber, and 15 is a second chamber;
2, a motor, 21, 22, a motor stator and a motor rotor;
3 is flywheel rotor, 31 is boss;
4 is an end seat, 41 is a flow channel, 411 is an inlet, 412 is an outlet, 42 is a countersunk threaded hole, and 43 is a mounting flange;
5 is a gas adsorption member;
6 is a blocking component, 61 is a flow guide hole, 62 is a first flange, 621 is a mounting hole, 63 is a second flange, and 64 is a flow guide channel;
7 is a first bearing; 8 is a second bearing; and 9 is a sealing ring.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
As shown in fig. 1 and fig. 2, the embodiment of the present invention provides a flywheel energy storage device, including: the device comprises a closed shell 1, a motor 2, a flywheel rotor 3, an end seat 4 and a gas adsorption component 5; wherein, the motor 2, the flywheel rotor 3, the end seat 4 and the gas adsorption component 5 are all positioned in the closed shell 1.
The motor 2 is used to drive the flywheel rotor 3 to rotate. It will be appreciated that the motor 2 drives the flywheel rotor 3 to rotate when energy storage is required. The specific structure of the motor 2 is designed according to actual needs, which is not limited in this embodiment.
The end seat 4 is fixedly connected with the closed shell 1. The end seat 4 is externally fitted to the flywheel rotor 3. In order to avoid that the end seat 4 interferes with the rotation of the flywheel rotor 3, there is a gap between the end seat 4 and the flywheel rotor 3. The size of the gap is selected according to actual needs, for example, the gap is larger than 0.2mm, which is not limited in this embodiment.
The end seat 4 and the flywheel rotor 3 divide the inner cavity of the closed shell 1 into a first cavity 14 and a second cavity 15, the motor 2 is fixed in the first cavity 14, and the gas adsorption component 5 is located in the second cavity 15. Furthermore, the inner wall of the end seat 4 is provided with at least one flow passage 41, and the flow passage 41 communicates the first chamber 14 and the second chamber 15 so that the gas in the first chamber 14 flows into the second chamber 15 during the rotation of the flywheel rotor 3. It will be appreciated that one end of the flow passage 41 extends to one end face of the end seat 4 and the other end of the flow passage 41 extends to the other end face of the end seat 4. The port of the flow channel 41 towards the first chamber 14 is an inlet 411 and the port of the flow channel 41 towards the second chamber 15 is an outlet 412. The pressure at the inlet 411 of the flow path 41 is high and the pressure at the outlet 412 of the flow path 41 is low, so as to ensure that the gas in the first chamber 14 flows along the flow path 41 into the second chamber 15 during rotation of the flywheel rotor 3.
The self-vacuumizing principle of the flywheel energy storage device provided by the embodiment is as follows:
in the energy storage process, the motor 2 drives the flywheel rotor 3 to rotate at a high speed, along with the high-speed rotation of the flywheel rotor 3, the gas in the first cavity 14 obtains momentum, the gas which obtains kinetic energy flows along the flow channel 41 and flows to the second cavity 15, and the gas adsorption member 5 located in the second cavity 15 adsorbs the gas in the second cavity 15, so that the gas in the first cavity 14 is moved to the second cavity 15 and is adsorbed by the gas adsorption member 5, and the self-vacuum-pumping of the first cavity 14 is realized.
Since the gas in the first chamber 14 obtains momentum with the high-speed rotation of the flywheel rotor 3, the flow direction of the gas flow must be at an angle with the axial direction of the flywheel rotor 3, and therefore, the flow passage 41 is required to be at an angle with the axial direction of the flywheel rotor 3. For the convenience of assembly, the end seat 4 and the flywheel rotor 3 are coaxially arranged, and an included angle is formed between the flow passage 41 and the axial direction of the end seat 4.
According to the self-vacuumizing principle, the flywheel energy storage device provided by the embodiment can realize self-vacuumizing without arranging a mechanical vacuum pump, and compared with the prior art, the cost is reduced; meanwhile, through the high-speed rotation of the flywheel rotor 3 and the combined action of the closed shell 1, the flow channel 41 and the gas adsorption component 5, the vacuumizing is realized, compared with the mechanical vacuum pump, the vacuum degree of the first chamber 14 can be reduced, the vacuum degree in the first chamber 14 can be smaller than 1Pa, the wind friction loss of the flywheel rotor 3 is reduced, and the energy storage efficiency of the whole flywheel energy storage device is improved.
Meanwhile, in the flywheel energy storage device, the closed shell 1 surrounds other components, so that the inside of the closed shell 1 is not communicated with the outside, namely, the inside of the closed shell 1 is not exchanged with the outside, the possibility that outside air enters the inside of the flywheel energy storage device is eliminated, and the reliability of self-vacuumizing is improved.
In order to increase the inlet-outlet pressure difference of the flow channel 41 to improve the self-vacuum efficiency, the flow cross section of the flow channel 41 is gradually reduced from the inlet 411 of the flow channel 41 to the outlet 412 of the flow channel 41, and the flow cross section is perpendicular to the flow direction at the position of the flow channel.
In one aspect, the depth of the flow channel 41 can be selected to gradually decrease from the inlet 411 of the flow channel 41 to the outlet 412 of the flow channel 41. It will be appreciated that the depth of the flow channel 41 is the length of the flow channel 41 in the radial direction of the end seat 4.
On the other hand, the length of the selectable flow passage 41 in the circumferential direction of the end seat 4 is selected to gradually decrease from the inlet 411 of the flow passage 41 to the outlet 412 of the flow passage 41.
In practical applications, the above two manners may be adopted, that is, the depth of the flow channel 41 gradually decreases from the inlet 411 of the flow channel 41 to the outlet 412 of the flow channel 41, and the length of the flow channel 41 in the circumferential direction of the end seat 4 gradually decreases from the inlet 411 of the flow channel 41 to the outlet 412 of the flow channel 41.
In the above embodiment, while the pressure difference between the inlet 411 and the outlet 412 of the flow channel 41 is increased, the backflow of the gas flow at the outlet 412 is also reduced, and the self-vacuum effect and efficiency are effectively improved.
The specific shape of the flow channel 41 is selected according to actual needs. In order to facilitate the gas flowing along the flow channel 41, the flow channel 41 may be selected to be a spiral flow channel. Specifically, the helical direction of the helical flow passage coincides with the rotation direction of the flywheel rotor 3 to ensure that the gas in the first chamber 14 flows into the second chamber 15 during rotation of the flywheel rotor 3.
In practical applications, the flow passage 41 may be selected to have other shapes as long as the gas in the first chamber 14 is ensured to flow into the second chamber 15 during the rotation of the flywheel rotor 3, and is not limited to the above embodiment.
The number of the flow passages 41 may be one or two or more. In order to improve the self-vacuum effect, at least two flow passages 41 may be selected and distributed in sequence along the circumferential direction of the end seat 4. Further, all the flow channels 41 are evenly distributed along the circumferential direction of the end seat 4.
As shown in fig. 3-6, the number of the flow channels 41 is eight, one end surface of the end seat 4 has 8 inlets 411 of the evenly distributed flow channels 41, and the other end surface of the end seat 4 has 8 outlets 412 of the evenly distributed flow channels 41, so that the uniform flow of the air flow is realized.
In order to be able to provide more flow channels 41, the inner diameter of the end seat 4 needs to be increased. Since the clearance between the end seat 4 and the flywheel rotor 3 is not likely to be excessively large, it is necessary to change the structure of the flywheel rotor 3. Specifically, the flywheel rotor 3 is provided with a boss 31, and the end seat 4 is sleeved on the flywheel rotor 3 at the boss 31.
Optionally, one end surface of the boss 31 is flush with one end surface of the end seat 4, and the other end surface of the boss 31 is flush with the other end surface of the end seat 4; alternatively, at least one end surface of the boss 31 and at least one end surface of the end seat 4 are not flush.
In the flywheel energy storage device, the gas adsorbing member 5 may be fixed in the second chamber 15, or alternatively, the gas adsorbing member 5 may not be fixed in the second chamber 15. For convenience of arrangement and adsorption of gas, it is optional that the gas adsorbing member 5 is not fixed in the second chamber 15, and only the gas adsorbing member 5 is filled in the second chamber 15. Since there is a gap between the end seat 4 and the flywheel rotor 3, if the gas adsorbing member 5 is small, the gas adsorbing member 5 easily blocks the flow passage 41 and the gap between the end seat 4 and the flywheel rotor 3. In order to avoid the above situation, as shown in fig. 2, the flywheel energy storage device further comprises a blocking member 6 disposed in the second chamber 15, wherein the blocking member 6 is used for blocking the gas adsorbing member 5 from falling into the flow channel 41 and the gap between the end seat 4 and the flywheel rotor 3.
The specific structure of the blocking member 6 is selected according to actual needs. In order to reduce the number of parts, as shown in fig. 2, 7 and 8, the blocking member 6 may be selectively sleeved on the flywheel rotor 3 and the outlet 412 of the flow channel 41, the gas adsorbing member 5 is located on the periphery of the blocking member 6, a flow guiding channel 64 is provided between the blocking member 6 and the flywheel rotor 3, and a flow guiding hole 61 is provided on the circumferential side wall of the blocking member 6.
It will be appreciated that the blocking member 6 is of a sleeve construction.
In the flywheel energy storage device, the gas flows out of the flow passage 41, enters the flow guide passage 64, flows to the periphery of the blocking member 6 through the flow guide hole 61, and is adsorbed by the gas adsorbing member 5 positioned on the periphery of the blocking member 6.
In the above structure, the blocking member 6 may be one. Of course, two or more blocking members 6 may be selected, and in this case, any two blocking members 6 are sequentially distributed in the axial direction of the flywheel rotor 3. In order to reduce the number of components and simplify the structure, it is preferable to select one blocking member 6.
In the above configuration, since the blocking member 6 is used to block the gas adsorbing member 5 from falling into the flow passage 41 and the gap between the end seat 4 and the flywheel rotor 3, the guide hole 61 is smaller than the gas adsorbing member 5. That is, the gas adsorbing member 5 cannot pass through the guide holes 61.
The shape of the diversion holes 61 is selected according to actual needs. For convenience of processing, the diversion hole 61 may be a circular hole. Of course, the diversion holes 61 may also be strip-shaped holes or square holes, which is not limited in this embodiment.
The number of the flow guide holes 61 may be one or more than two. In order to improve the flow guiding efficiency, the number of the flow guiding holes 61 is at least two. Specifically, at least two diversion holes 61 are sequentially distributed along the circumferential direction of the blocking member 6; and/or at least two diversion holes 61 are distributed in sequence along the axial direction of the blocking member 6. Further, at least two flow guiding holes 61 are evenly distributed along the circumferential direction of the blocking member 6; and/or at least two flow guiding holes 61 are evenly distributed along the axial direction of the blocking member 6.
In the flywheel energy storage device, the blocking member 6 may be optionally fixed in the closed housing 1 for improved reliability. For ease of installation, the blocking member 6 may be selected to be placed over the end seat 4 and boss 31.
For the convenience of installation and fixation, one end of the blocking member 6 is provided with a first flange 62, the other end of the blocking member 6 is provided with a second flange 63, the second flange 62 is positioned on the end seat 4, and the first flange 62 is fixedly connected with the closed shell 1.
It will be appreciated that the second flange 62 is located on the end seat 4 and the body of the blocking member 6 is located on the boss 31. Of course, the second flange 62 may be located on the end seat 4 and the boss 31, and is selected according to actual needs, which is not limited in this embodiment.
To facilitate the fixing, the first flange 62 is fixedly connected to the closure housing 1 by means of fasteners. At this time, the first flange 62 is provided with a mounting hole 621 for mounting a fastener, as shown in fig. 8.
In practical applications, the blocking member 6 may be selected to have other structures, and is not limited to the sleeve structure.
In the flywheel energy storage device, for a specific type of the gas adsorbing member 5, the gas adsorbing member 5 is selected according to actual needs, for example, the gas adsorbing member 5 is a molecular sieve, which is not limited in this embodiment.
In the flywheel energy storage device, the specific structure of the motor 2 is set as required. In order to improve the structural compactness, the motor 2 is sleeved outside the flywheel rotor 3, the motor 2 mainly includes a motor stator 21 and a motor rotor 22, the motor stator 21 is fixed to the closed casing 1, the motor rotor 22 of the motor 2 is fixedly connected with the flywheel rotor 3, and both ends of the flywheel rotor 3 are rotatably disposed on the closed casing 1.
In order to facilitate the rotation of the flywheel rotor 3, the flywheel rotor 3 may be rotatably disposed in the hermetic case 1 through a bearing.
In the flywheel energy storage device, the specific structure of the closed shell 1 is selected according to actual requirements. In a particular embodiment, the hermetic shell 1 comprises: a base 13, a housing 12, and a top cover 11; wherein, one end of the shell 12 is connected with the base 13 in a sealing way and is fixedly connected with the base, and the other end of the shell 12 is connected with the top cover 11 in a sealing way and is fixedly connected with the top cover.
It will be appreciated that the base 13, the housing 12, and the top cover 11 are distributed in this order along the axis of the flywheel rotor 3.
In the structure, the closed shell 1 is divided into three parts, so that the installation and the disassembly are convenient. In practical applications, the enclosure case 1 may be selected to have other structures, and is not limited to the above embodiment.
For sealing, the base 13 and the top cover 11 are hermetically connected through the sealing ring 9 and the housing 12. The end seat 4 is also sealingly connected to the closure housing 1 by means of a seal. The sealing ring 9 and the sealing member may be O-ring or other types, which is not limited in this embodiment.
Specifically, the end face where the outer shell 12 and the top cover 11 are connected is provided with a first receiving groove for receiving the seal ring 9, and the end face where the base 13 and the outer shell 12 are connected is provided with a second receiving groove for receiving the seal ring 9. The above-mentioned end seat 4 is provided with a third receiving groove for receiving a seal.
In the closed shell 1, the end seat 4 and the shell 12 are hermetically and fixedly connected, and/or the end seat 4 and the top cover 11 are hermetically and fixedly connected.
If the end seat 4 and the housing 12 are connected in a sealing manner and are fixedly connected, the end seat 4 and the housing 12 are of an integral structure, or the end seat 4 and the housing 12 are of a split structure.
If the end seat 4 and the housing 12 are of a split structure, in order to facilitate installation, the end seat 4 is provided with an installation flange 43, an installation groove matched with the installation flange 43 is formed in the housing 12, and the installation flange 43 is fixed in the installation groove. It will be appreciated that the cross-section of the end seat 4 is now T-shaped, the cross-section being coplanar with the axis of the end seat 4.
To facilitate disassembly, the mounting flange 43 is optionally secured to the mounting recess by fasteners. Specifically, the mounting flange 43 is provided with a countersunk threaded hole 42, the housing 12 is provided with a threaded hole at the mounting groove, and the fastener passes through the countersunk threaded hole 42 and is fixed in the threaded hole at the mounting groove.
In the above structure, by providing the countersunk head screw hole 42, the fastener is prevented from protruding from the end surface of the end seat 4, thereby preventing the gas adsorbing member 5 from being affected. Of course, the fastener may alternatively protrude from the end surface of the end seat 4, and is not limited to the above embodiment.
In the closed casing 1, one end of the flywheel rotor 3 is rotatably provided on the top cover 11, and the other end of the flywheel rotor 3 is rotatably provided on the base 13. Specifically, one end of the flywheel rotor 3 is rotatably provided to the top cover 11 through the first bearing 7, and the other end of the flywheel rotor 3 is rotatably provided to the base 13 through the second bearing 8.
In the flywheel energy storage device, the motor stator 21 is fixed to the base 13. If the flywheel energy storage device comprises the blocking member 6, the blocking member 6 is fixed to the top cover 11
In the flywheel energy storage device, in order to enhance the overall strength of the enclosure 1, a reinforcing structure may be provided on the enclosure 1, and specifically, the outer wall of the outer shell 12 may be optionally provided with a reinforcing rib 121. Of course, the reinforcing structure is also disposed at other positions, which is not limited in this embodiment.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A flywheel energy storage device, comprising: the closed shell is internally provided with a motor, a flywheel rotor, an end seat and a gas adsorption component;
wherein the motor is used for driving the flywheel rotor to rotate;
the end seat is fixedly connected with the closed shell, the end seat is sleeved on the flywheel rotor, and a gap is formed between the end seat and the flywheel rotor;
the end seat and the flywheel rotor divide the inner cavity of the closed shell into a first cavity and a second cavity, the motor is fixed in the first cavity, and the gas adsorption component is positioned in the second cavity;
the inner wall of the end seat is provided with at least one flow passage, and the flow passage is communicated with the first cavity and the second cavity so that gas in the first cavity flows into the second cavity in the rotation process of the flywheel rotor.
2. The flywheel energy storage device according to claim 1, wherein the flow cross section of the flow channel is gradually reduced from the inlet of the flow channel to the outlet of the flow channel, and the flow cross section is perpendicular to the flow direction at the position of the flow channel.
3. A flywheel energy storage device as claimed in claim 2, wherein the depth of the flow path decreases from the inlet of the flow path to the outlet of the flow path;
and/or the length of the flow channel in the circumferential direction of the end seat is gradually reduced from the inlet of the flow channel to the outlet of the flow channel.
4. The flywheel energy storage device according to claim 1, wherein the flow channel is a spiral flow channel, and the spiral direction of the spiral flow channel is consistent with the rotation direction of the flywheel rotor;
and/or at least two flow passages are uniformly distributed along the circumferential direction of the end seat;
and/or the flywheel rotor is provided with a boss, and the end seat is sleeved outside the flywheel rotor at the boss.
5. A flywheel energy storage device as claimed in claim 1, further comprising a blocking member disposed within the second chamber for blocking the gas adsorbing member from falling into the flow passage and into the gap between the end seat and the flywheel rotor.
6. The flywheel energy storage device according to claim 5, wherein the blocking member is sleeved on the flywheel rotor and the outlet of the flow channel, the gas adsorbing member is located on the periphery of the blocking member, a flow guide channel is formed between the blocking member and the flywheel rotor, and a flow guide hole is formed in the circumferential side wall of the blocking member.
7. A flywheel energy storage device according to claim 6 wherein one end of the blocking member is provided with a first flange and the other end of the blocking member is provided with a second flange at the end seat, the first flange being fixedly connected to the closure housing.
8. The flywheel energy storage device of claim 1, wherein the gas adsorbing member is a molecular sieve;
and/or the motor is sleeved outside the flywheel rotor, the rotor of the motor is fixedly connected with the flywheel rotor, and two ends of the flywheel rotor are rotatably arranged on the closed shell.
9. A flywheel energy storage device according to any of claims 1 to 8, wherein the close enclosure comprises: a base, a housing, and a top cover;
one end of the shell is hermetically and fixedly connected with the base, and the other end of the shell is hermetically and fixedly connected with the top cover;
the end seat and the shell are in sealing connection and fixed connection, and/or the end seat and the top cover are in sealing connection and fixed connection.
10. The flywheel energy storage device according to claim 9, wherein if the end seat and the housing are sealingly and fixedly connected, the end seat is provided with a mounting flange, and the housing is internally provided with a mounting groove which is matched with the mounting flange, and the mounting flange is fixed in the mounting groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221327940.8U CN217545782U (en) | 2022-05-30 | 2022-05-30 | Flywheel energy storage device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221327940.8U CN217545782U (en) | 2022-05-30 | 2022-05-30 | Flywheel energy storage device |
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| CN217545782U true CN217545782U (en) | 2022-10-04 |
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| CN202221327940.8U Active CN217545782U (en) | 2022-05-30 | 2022-05-30 | Flywheel energy storage device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115622325A (en) * | 2022-12-16 | 2023-01-17 | 华驰动能(北京)科技有限公司 | Energy storage flywheel capable of automatically vacuumizing and energy storage equipment with energy storage flywheel |
-
2022
- 2022-05-30 CN CN202221327940.8U patent/CN217545782U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115622325A (en) * | 2022-12-16 | 2023-01-17 | 华驰动能(北京)科技有限公司 | Energy storage flywheel capable of automatically vacuumizing and energy storage equipment with energy storage flywheel |
| CN115622325B (en) * | 2022-12-16 | 2023-03-28 | 华驰动能(北京)科技有限公司 | Energy storage flywheel capable of automatically vacuumizing and energy storage equipment with energy storage flywheel |
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