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CN-122014751-A - Device for supporting rotor by multi-layer different-speed air cushion wall type air cushion

CN122014751ACN 122014751 ACN122014751 ACN 122014751ACN-122014751-A

Abstract

The invention discloses a device for supporting a rotor by a multi-layer different-speed air cushion wall type air cushion, wherein the side surface of an air cushion chamber of an air cushion device is formed by a fixed air cushion wall and a rotating air cushion wall, the rotating air cushion wall is formed into different rotating speeds by a rotating speed control device, a contact type rotary sealing device is arranged between the multi-layer air cushion walls, the linear speed of the contact type rotary sealing device can be always in an allowable range by controlling the rotating speed difference between the adjacent air cushion walls, and finally the linear speed at the outer side of a lifting disk is achieved by the superposition of the multi-layer speeds, so that the contact type rotary sealing device is safely and efficiently used in an air cushion supporting high-speed rotor environment.

Inventors

  • ZHOU RUIXUAN
  • ZHOU DONGNING

Assignees

  • 惠宁睿能源科技开发(甘肃)有限公司

Dates

Publication Date
20260512
Application Date
20260327

Claims (10)

  1. 1. The utility model provides a device of multi-layer different speed air cushion wall type air cushion support rotor, a serial communication port, including base (1), air cushion chamber (3) that air cushion wall encloses are gone up in backing plate (2), air supply device (4) are connected to air cushion chamber (3), the air cushion wall is including changeing air cushion wall (6) and installing fixed air cushion wall (5) on base (1), set up at least one deck between fixed air cushion wall (5) and backing plate (2), changeing air cushion wall (6) rotate around rotor shaft (9), between backing plate (2) and the nearest changeing air cushion wall (6), changeing between changeing air cushion wall (6) and the fixed air cushion wall (5) through contact rotary seal device (7) sealing, changeing air cushion wall (6) connect rotational speed controlling means (8), the rotational speed controlling means (8) are used for controlling the higher the changeing air cushion wall (6) rotational speed that is close to backing plate (2), the rotor shaft (9) and rotor (10) are connected.
  2. 2. A device for supporting a rotor with multi-layered, different-speed air-cushion wall according to claim 1, characterized in that a first thrust bearing (11) is provided on the base (1), the first thrust bearing (11) being concentric with the rotor shaft (9), said air-turning cushion wall (6) being mounted on the first thrust bearing (11), the air-turning cushion wall (6) turning around the rotor shaft (9).
  3. 3. Device for supporting a rotor with multi-layered, different-speed air-cushion wall according to claim 1, characterized in that the rotary air-cushion wall (6) is connected with a rotary synchronizing device (16) between the rotor shaft (9) or the lifting disk (2), and the rotary synchronizing device (16) is rotatably connected with the rotor shaft (9) or the lifting disk (2).
  4. 4. The device for supporting a rotor by using a multi-layer different-speed air cushion wall type air cushion according to claim 1, wherein the air cushion wall (5) comprises two layers, a fixed synchronization device (14) is connected between the inner fixed air cushion wall (5) and the rotor shaft (9) or the lifting disk (2), an elastic sealing device (15) is arranged between the two layers of fixed air cushion walls (5), and the fixed synchronization device (14) is rotationally connected with the rotor shaft (9) or the lifting disk (2).
  5. 5. A device for supporting a rotor by means of a multi-layered, different-speed air-cushion wall according to claim 4, characterized in that a second thrust bearing (24) is arranged between the bottom wall (1) and the fixed synchronizing means (14) and between the fixed synchronizing means (14) and the rotary synchronizing means (16).
  6. 6. A device for supporting a rotor by means of a multi-layered, different-speed air-cushion wall according to claim 1, characterized in that the rotation speed control means (8) comprise an electric motor (800), the input shaft of the electric motor (800) being connected to a driving wheel one (801), the driving wheel one (801) being in driving connection with the rotary air-cushion wall (6).
  7. 7. A device for supporting a rotor by means of a multi-layered, different-speed air-cushion wall according to claim 1, characterized in that the rotation speed control means (8) comprise a generator (803), the output shaft of the generator (803) is connected to a driving wheel two (802), the driving wheel two (802) is in driving connection with the rotation air-cushion wall (6).
  8. 8. A device for supporting a rotor by means of a multi-layered, different-speed air-cushion wall according to claim 1, characterized in that the outer side of the turning air-cushion wall (6) is also provided with a turning air-cushion wall sleeve (26).
  9. 9. Device for supporting a rotor with multi-layer, different-speed air-cushion wall type air-cushion according to claim 1, characterized in that the outer side of the lifting disk (2) is also provided with a lifting disk sleeve (23).
  10. 10. The device for supporting a rotor by a multi-layered, different-speed air cushion wall according to claim 1, wherein when the number of the air cushion walls (6) is more than two, the adjacent air cushion walls (6) are sealed by a contact rotary sealing device (7).

Description

Device for supporting rotor by multi-layer different-speed air cushion wall type air cushion Technical Field The invention belongs to the field of flywheel energy storage, and particularly relates to a device for supporting a rotor by a multi-layer different-speed air cushion wall type air cushion. Background In the prior art of air cushion supporting rotor device, for example, in the prior art of bulletin number CN223622041U, an apparatus for supporting rotor by synchronous vibration of air cushion wall and lifting disk in air cushion and in the prior art of bulletin number CN223928172U, an upper frame air cushion supporting rotor device is provided, the air cushion chamber only has non-rotating air cushion wall, and the scheme is more suitable for using a non-contact rotary sealing device. Although the contactless sealing device has an advantage of being suitable for high speed, there are also problems of high price, large leakage amount, and the like. The contact type sealing device has the advantages of low price and small leakage. However, the contact seal has a disadvantage of allowing a low maximum linear velocity, and cannot be used for sealing devices such as a high-speed flywheel. Therefore, the cost can be obviously reduced and the sealing effect is better by adopting the contact type rotary sealing device as long as the problem of low highest linear speed of the contact type sealing is solved. Disclosure of Invention (1) Aiming at the problem that the existing air cushion flywheel energy storage device with an air cushion wall which does not rotate cannot be suitable for a contact type rotary sealing device, the invention provides a device for supporting a rotor by a multi-layer different-speed air cushion wall type air cushion, which solves the problem. (2) The technical scheme adopted by the invention is as follows: The utility model provides a device of multi-layer different speed air cushion wall type air cushion support rotor, including the base, the air cushion room that air cushion wall encloses is lifted to the pad, air cushion room connects air feeder, the air cushion wall is including changeing the air cushion wall and installing the fixed air cushion wall on the base, set up at least one deck and change the air cushion wall between fixed air cushion wall and the pad, change the air cushion wall and rotate around the rotor shaft, change between the pad and the nearest change air cushion wall, change between air cushion wall and the fixed air cushion wall through contact rotary seal device seal, change the air cushion wall and connect speed control device, the speed control device is used for controlling to be close the higher the change air cushion wall rotational speed of lifting the pad more, the pad is connected rotor shaft and rotor. The further technical scheme is that the base is provided with a first thrust bearing, the first thrust bearing is concentric with the rotor shaft, the rotary air cushion wall is arranged on the first thrust bearing, and the rotary air cushion wall rotates around the rotor shaft. The further technical scheme is that a rotating synchronization device is connected between the rotating air cushion wall and the rotor shaft or the lifting disk, and the rotating synchronization device is rotationally connected with the rotor shaft or the lifting disk. The further technical scheme is that the fixed air cushion wall comprises two layers, a fixed synchronization device is connected between the fixed air cushion wall on the inner side and the rotor shaft or the lifting disk, an elastic sealing device is arranged between the two layers of fixed air cushion walls, and the fixed synchronization device is rotationally connected with the rotor shaft or the lifting disk. The further technical scheme is that a second thrust bearing is arranged between the bottom wall and the fixed synchronization device and between the fixed synchronization device and the rotating synchronization device. The further technical scheme is that the rotating speed control device comprises a motor, an input shaft of the motor is connected with a first driving wheel, and the first driving wheel is in transmission connection with the rotating air cushion wall. The further technical scheme is that the rotating speed control device comprises a generator, an output shaft of the generator is connected with a driving wheel II, and the driving wheel II is in transmission connection with the rotating air cushion wall. The further technical scheme is that the outer side of the rotary air cushion wall is also provided with a rotary air cushion wall sleeve. The further technical scheme is that the outer side of the lifting plate is also provided with a lifting plate sleeve. The further technical proposal is that when the number of the air rotating cushion walls is more than two, the adjacent air rotating cushion walls are sealed by a contact rotary sealing device. (3) Due to the adoption of the technica