Energy accumulator

FIELD: electricity.

SUBSTANCE: accumulator contains a vacuumised housing, a fly-wheel in the form of a vertical cylindrical tubular rotor with a motor generator set with a stator and a drive disc. The support system is composed of a needle support bearing with a bearing socket in the lower part and a magnetic bearing with a permanent magnet in the upper part of the rotor. The supports rotary elements are attached to the partitions installed inside the rotor tube at a certain distance from its butt ends. The horizontal plane passing through the boundary of interaction between the support rotary and non-rotary elements cross the rotation axis in the unit of the rotor axle bend shape at the operating rotation rate. The accumulator housing is installed into an accumulator assembly.

EFFECT: reduction of aerodynamic losses in the vacuumised housing and losses in the rotor support units.

2 cl, 6 dwg

 

The invention relates to the field of energy and can be used as kinetic buffer store of energy, for example, to electrified transport systems, sources of emergency power, uninterruptible power supplies for nuclear, wind and solar power plants.

Known flywheel drive patent RU No. 2246034 (05.01.2001, F03G 3/08, F16H 33/02, NC 7/02) with flywheel and drive with the legs placed in separated vacuumized cameras with different levels of vacuum in them. In the chamber with a low level vacuum encapsulated actuator supports, and in the chamber with a high vacuum level is placed flywheel. The chambers are separated by a seal that is airtight. Camera with low vacuum and seal between the chambers increases the friction losses in the structure.

Known energy storage device according to patent EP 0821462 (1998-01-28, NC 7/02; NC 7/08; F16F 15/30; F16F 15/315), including vacuumized enclosure mounted in the housing of the vertical rod with the stator, a cylindrical rotor driven by a stator for accumulating kinetic energy and interacting with the stator as a generator when the release of energy. The tubular rotor has an inner layer of glass and an outer layer of carbon fiber, and the thickness of the inner layer is 2/3 of the thickness of the pipe of the rotor. To the core cover of the rotor is used to support the rotor on the shaft through a needle thrust bearing with a spherical head and a thrust bearing in the upper part of the rotor, and the axial and radial magnetic bearings with permanent magnets that interact with the magnetic material of iron or NdFeB in the inner layers of the plastic rotor installed in the lower part of the rotor. Stationary rod increases the losses due to friction with the inner surface of the rotor and reduces the efficiency of the drive.

Famous adopted for the prototype, the drive energy for CN patent 101420150 (A) (2009-04-29, NC 7/02; F16C 17/04), comprising a housing mounted in the body cavity of the motor, the flywheel with a vertical axis of rotation and the system supports, and the body cavity vacuumized. The motor is installed under the flywheel. The flywheel and the rotor of the motor mounted on a common shaft. The system supports formed from the needle support bearing with thrust bearing at the bottom and magnetic bearing with permanent magnet in the upper part of the flywheel.

The device has simple structure, convenient maintenance, low cost, good stability, enables quick charge and discharge energy. The disadvantage of this device is not sufficiently high efficiency of energy conservation due to the presence of additional radial loads in the bearings when the unbalance of the rotor at high rotational speeds.

Task to be solved by the present invention is directed, is the creation of energy storage, obespechivayusch the low aerodynamic losses in the vacuumized enclosure simultaneously with the reduction of losses in the reference node of the rotor.

The technical result consists in creating the design of the energy storage flywheel with less aerodynamic losses and supports with smaller radial loads.

To solve the problem and achieve a technical result in energy storage, including vacuumized enclosure, installed the flywheel in the form of a vertical cylindrical tubular rotor interacting with the motor-generator, the stator of which is fixed in the housing, and a drive disc mounted on the rotor, the system supports containing non-rotating and rotating with the rotor elements, formed from the needle support bearing with thrust bearing in the lower part of the rotor and magnetic bearing with permanent magnet in the upper part of the rotor, a rotating element, at least one of the supports mounted on the partition that is installed inside the tube of the rotor at some distance from her end.

In addition, the rotating element other supports mounted on another partition, installed inside the tube of the rotor at a distance from its end.

Additionally, the horizontal plane passing through the boundary of the interaction between rotating and non-rotating elements, at least one of the supports intersect the axis of rotation at the site or near the site of the bending shape of the rotor axis on the rotation speed.

Also what about the, horizontal plane passing through the boundary of the interaction between rotating and non-rotating elements of the other pillars, crosses the axis of rotation in a different site or near the other node of the bending shape of the rotor axis on the rotation speed.

Additionally, the rotor is constructed of two or more pipes connected by flexible elements.

Moreover, the flexible element is made in the form of two partitions with shared Central part and the periphery of the partitions installed in the connecting pipe of the rotor.

Additionally, the tubular rotor is made of a metal pipe, reinforced polymeric materials, reinforced or glass fibers, or carbon fibers, or organosiloxane.

In addition, inside the housing has a molecular pump.

Additionally, in the upper part of the rotor and/or the lower part of the rotor is installed correcting device.

In addition, the motor-generator is designed as a valve actuator.

Additionally, the drives installed in the drive cluster formed from two rows of buildings drives, mounted on the frame with straps, buckles and grommets and United gas pipe for vacuum housing with a common gas header.

In addition, the gas tube for evacuating the enclosure are connected to a common gas manifold through the valve, triggered from RA the gate housing in the destruction of the rotor.

The invention is illustrated by drawings.

Figure 1 shows a vertical section of the energy storage device with a rigid rotor.

Figure 2 shows a vertical section of the drive with a molecular seal.

Figure 3 shows a vertical section of the drive with flexible multilink rotor.

Figure 4 shows the front view of the drive cluster.

Figure 5 shows a partial top view of the drive cluster.

Figure 6 shows a section along AA unit drives figure 4.

The energy accumulator contains vacuumized housing 1 closed by a cover 2, a vertical cylindrical tubular rotor 3 made in the form of a metal pipe 4 is installed inside the pipe 4 at some distance from its ends by a partition wall 5 and the partition 6. Pipe 4 hardened layers of polymeric material, for example, layers of fiberglass layers 7 and 8 carbon. The rotor is driven in rotation around the axis 9 of the motor-generator with a stator 10 and a driving disk 11 mounted on the axis 12, is installed on the partition 6. The system supports the rotor consists of a needle 13, is installed in the axis 12 and supported on the thrust bearing 14, and the magnetic bearing of the permanent magnet 15 and the ferromagnetic sleeve 16 mounted on the partition 5. The sleeve 16 is rotating, the upper support element interacts with the magnet 15 is non-rotating element of the upper bearing in the horizontal the orbital plane 17, intersect the axis 9 of rotation of the rotor in the node 18 forms a bend 19 of the rotor axis on the rotation speed. The needle 13 is a rotating element of the foot interacts with the thrust bearing 14 - non-rotating element of the foot in the horizontal plane 20 that intersects the axis 9 of rotation of the rotor in the other node 21 forms a bend 19 of the rotor axis on the rotation speed. The thrust bearing 14 is mounted on the damping element 22 with centering springs 23 in the housing 24 of the damper filled with oil. In the lower part of the rotor is installed correcting device in the form of a ring 25, covering with some radial clearance the axle 12 with the damping cylinder 26 for centering the spring 27 in the housing 24. In the upper part of the rotor correcting device made in the form of a ring 28 that is installed as the magnet 15 in the holder 29 and the covering sleeve 16 with some radial clearance. From the cover 2 moves the gas tube 30 for evacuating the building.

In the embodiment, the drive 2 in the housing 1 is installed covering the rotor 3, the sleeve 31 molecular pump with internal threads to facilitate pumping of the housing 1 through the gas tube 30.

In the variant of the drive figure 3 the rotor is made of three tubes 32, 33 and 34, made of layers of fiberglass layers 7 and 8 carbon. Pipes are interconnected by flexible elements 35 and 36. The flexible element 35 within which a dividing wall 37 in the form of a disk and partition 38 in the form of a disc with a common Central part 39. The periphery 40 of the partition 37 is installed in the pipe 32 and the periphery 41 of the partition 38 is installed in the pipe 33 of the rotor. The motor-generator is designed as a valve actuator with a driving disk 42, which established the permanent magnets 43 from an alloy of neodymium-iron-boron, interacting with the coils 44 stature.

In an embodiment of the drive figs.4, 5 and 6, the housing 1 of the drive is installed on the frame 46, made of vertical, longitudinal and transverse beams, in a block of two rows of these drives. Drives attached to the chassis straps 47, ties 48 and shock absorbers in the form of tapes 49 with rubber gaskets 50. Gas tube 30 are connected to a common gas manifold 51 through the valve 52 with a thrust of 53 mounted on the cover 2.

The drive is as follows.

Through gas tube 30 and the collector 51, connected to a vacuum pump, the vacuum housing 1 and apply power to the motor-generator. The rotor 3 is accelerated to operating speed and stores mechanical energy. On the rotation speed of the axis of symmetry of the rotor under the action of residual nebulans bent on their own 19. The location of the rotating elements of the supports on the wall 5 and the partition 6 installed inside the pipe 4 of the rotor 3 at some distance from its ends, allows for cooperation between rotating and netvigilance supports in the planes 17 and 19, intersecting the axis of rotation 9 in the nodes 18 and 21 form a bend 19 of the rotor axis on the rotation speed. Thus, the upper magnetic pole boundary interaction sleeve 16 mounted on the inside of the pipe 4 partition 5 with the magnet 15 passes through a plane 17 that intersects the axis of rotation 9 in the node 18 forms a bend 19 of the rotor axis on the rotation speed. The radial movement of the end of the sleeve 16 relative to the axis of symmetry of the magnet 15 (or the axis of rotation 9) from the bending of the rotor 3 in the place of interaction between the sleeve 16 and the magnet 15 no (or minimal). As a result of this radial load in the support, there is no (or minimal) and friction losses in the magnetic support is minimal. The lower support needle 13 is installed on the inside of the pipe 4 rotor partition 6. Moreover, the border of the interaction of the spherical end of the needle 13 and a thrust bearing 14 passes through a plane 20 that intersects the axis of rotation 9 in the other node 21 forms a bend 19 of the rotor axis on the rotation speed. The bending of the needle 13 and the radial movement of the end of the needle 13 relative to the symmetry axis of the thrust bearing 14 (or the axis of rotation 9) from the bending of the rotor 3 in the node 21 no (or minimal). As a result of this radial load in the lower leg there is no (or minimal) and friction losses to a minimum. Since the inner tube 4 of the rotor 3 between the wall 5 and the partition is isolated from the fixed elements, the friction losses of the rotating rotor 3 about remaining inside the housing 1 of the gas is also reduced. Thus, when the rotor 3 at operating speed in the idling friction losses in the bearings and on the gas the minimum that ensures effective conservation accumulated rotor energy.

When switching the motor-generator mode of the power generation coil 15 of the actuator cooperating with the driving disk 11 or the magnets 43 and generate electrical energy, while the rotor 3 is braked and reduces the speed of rotation. During emergency situations, such as loss of vacuum in the housing 1, the rotor 3 may become unstable and begins to interact with the top 28 and bottom 25 ring of the corrector, which stabilize the rotation and prevent the destruction of the rotor 3. The location of the drives in the unit on the frame 46 allows dozens of times to increase the capacity of such a facility compared to the capacity of one drive. In the destruction of the rotor 3 of the drive in the accident case 1 drive turns and braked ribbons 49 and gaskets 50 absorbers. When the reversal of the housing 1 rod 53 communicates with the valve 52 and turns off the gas tube 30 drive from the manifold 51 that prevents the spread of aerodynamic disturbances on the other drive unit. Execution of the rotor of the drive of the hill is such pipes 32, 33 and 34, connected by a flexible 35 and 36 elements, allows to increase the unit energy consumption of the drive without a significant strengthening protections in the destruction of the rotor, since the rotor breakdown of several of the pipes does not occur at the same time and stretched over time. When the drive rotor 3 is accelerated to the rotation speed, the length of the rotor is reduced and due to the profiling of the partitions 5 and 6 between the supports is set to a distance corresponding to the best working conditions of the lower support on the axial load. When the power take-off drive speed of rotation of the rotor 3 is reduced, and the length of the rotor 3 increases, resulting in a change in the distance between the supports and the deviation from the optimal value of the axial load in the lower leg. The placement of rotating elements of the supports on the walls 5 and 6, are installed inside the tube of the rotor away from its ends, can further reduce the effect of changing the length of the rotor to changes in load on the bottom support in the operating modes of the drive, since the distance between the partitions 5 and 6 is less than the length of the entire rotor 3, which can increase the life of the drive.

1. Energy storage device that includes a vacuumized enclosure, installed the flywheel in the form of a vertical cylindrical tube is otora with the motor-generator with the stator, fixed in the housing, and a driving disk mounted on the rotor, the system supports, formed from the needle support bearing with thrust bearing in the lower part of the rotor and magnetic bearing with permanent magnet in the upper part of the rotor, characterized in that the rotating element, at least one of the supports mounted on the partition that is installed inside the tube of the rotor at a distance from its end.

2. Energy storage device according to claim 1, characterized in that the rotating element other supports mounted on another partition, installed inside the tube of the rotor at a distance from its end.

3. Energy storage device according to claims 1 and 2, characterized in that a horizontal plane passing through the boundary of the interaction between rotating and non-rotating element, at least one of the supports intersect the axis of rotation at the site or near the site of the bending shape of the rotor axis on the rotation speed.

4. Energy storage device according to claim 3, characterized in that a horizontal plane passing through the boundary of the interaction between rotating and non-rotating element other support intersects the axis of rotation in a different site or near the other node of the bending shape of the rotor axis on the rotation speed.

5. Energy storage device according to claim 1, characterized in that the rotor is constructed of two or more pipes connected by flexible elements./p>

6. Energy storage device according to claim 5, characterized in that the flexible element is made in the form of two partitions with shared Central part and the periphery of the partitions installed in the connecting pipe of the rotor.

7. Energy storage device according to claim 1, characterized in that the tubular rotor is made of a metal pipe, reinforced polymeric materials reinforced with glass fibers, or carbon fibers, or organosiloxane.

8. Energy storage device according to claim 1, characterized in that the inside has a molecular pump.

9. Energy storage device according to claim 1, characterized in that the upper part of the rotor and/or the lower part of the rotor is installed correcting device.

10. Energy storage device according to claim 1, characterized in that the motor-generator is designed as a valve actuator.

11. Energy storage device according to claim 1, characterized in that the housing of the drive installed in the drive cluster formed from two rows of buildings drives, mounted on the frame with straps, buckles and grommets and United gas pipe for vacuum housing with a common gas header.

12. Energy storage device according to claim 11, characterized in that the gas tube for evacuating the enclosure are connected to a common gas manifold through the valve, triggered from the body turned in the destruction of the rotor.



 

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Idle air control // 2212750
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