CN116753115A - Marine fan with shock attenuation and cooling function - Google Patents
Marine fan with shock attenuation and cooling function Download PDFInfo
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- CN116753115A CN116753115A CN202310791118.XA CN202310791118A CN116753115A CN 116753115 A CN116753115 A CN 116753115A CN 202310791118 A CN202310791118 A CN 202310791118A CN 116753115 A CN116753115 A CN 116753115A
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- 238000001816 cooling Methods 0.000 title claims abstract description 59
- 230000035939 shock Effects 0.000 title claims description 9
- 238000013016 damping Methods 0.000 claims abstract description 41
- 241000886569 Cyprogenia stegaria Species 0.000 claims abstract description 32
- 230000006870 function Effects 0.000 claims abstract description 17
- 229920001971 elastomer Polymers 0.000 claims description 19
- 239000003507 refrigerant Substances 0.000 claims description 18
- 230000000712 assembly Effects 0.000 claims description 17
- 238000000429 assembly Methods 0.000 claims description 17
- 230000000694 effects Effects 0.000 claims description 12
- 239000000696 magnetic material Substances 0.000 claims description 12
- 239000002245 particle Substances 0.000 claims description 11
- 239000006096 absorbing agent Substances 0.000 claims description 10
- 239000000956 alloy Substances 0.000 claims description 8
- 229910045601 alloy Inorganic materials 0.000 claims description 8
- 150000001875 compounds Chemical class 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 6
- 239000002131 composite material Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 238000005192 partition Methods 0.000 claims description 3
- 230000006378 damage Effects 0.000 abstract description 5
- 230000007613 environmental effect Effects 0.000 description 8
- 230000009471 action Effects 0.000 description 4
- 230000005389 magnetism Effects 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/0296—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor to prevent, counteract or reduce noise emissions
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
- F03D80/60—Cooling or heating of wind motors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
- F03D9/20—Wind motors characterised by the driven apparatus
- F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Power Engineering (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention discloses an offshore wind turbine with damping and cooling functions, which comprises a wind turbine shell, a fan and a wind turbine, wherein the front part of the wind turbine shell is rotationally connected with the fan, and the rear part of the wind turbine shell is fixedly provided with the wind turbine connected with a fan rotating shaft; the front end of the fan shell is provided with a damping unit for elastically propping up the front end of the fan rotating shaft, and the rear end of the fan shell is provided with a cooling unit rotationally and fixedly connected to the rear end of the fan rotating shaft; the fan vibration that it can effectually restrain the marine environment to lead to and reduce motor temperature by a wide margin, reduce because of fan vibration by a wide margin or cabin inside motor group leads to the hardware destruction because of the heat is too big to guarantee the safe operation of fan, reduce overall cost, extension fan life.
Description
Technical Field
The invention relates to the technical field of wind power equipment, in particular to an offshore wind turbine with damping and cooling functions.
Background
In recent years, wind energy has come into wide use as people's awareness of energy demands and environmental protection has increased. Compared with the land wind driven generator, the offshore wind driven generator has the advantages of small pollution, short construction period, low operation cost and the like.
As the structural scale of offshore wind turbines increases, the capacity and power of wind turbine generators increases, and the heat production increases, and the requirements on structural safety and cooling of the wind turbine generators become higher. The offshore wind turbine is required to bear not only the pneumatic load under the action of external wind, but also the load generated by natural actions such as sea waves, ocean currents, sea ice and even earthquakes. Because of the harsh environmental conditions at sea, offshore wind turbines produce large vibrations during operation, the instrumentation in wind turbines is often very sensitive to acceleration, and thus severe vibrations are highly likely to cause equipment failure, destruction; in addition, prolonged exposure to large vibrations may lead to fatigue failure. Meanwhile, the motor unit can store more heat and damage internal components of the motor. Therefore, the invention has important significance for the research on the vibration of the offshore wind turbine structure and the temperature control of the motor.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the offshore wind turbine with the damping and cooling functions, which can effectively inhibit the large-amplitude vibration of the offshore wind turbine and reduce the temperature of a motor, and reduce the hardware damage caused by the large-amplitude vibration of the wind turbine or the overlarge heat of a motor set in a cabin, thereby ensuring the safe operation of the wind turbine, reducing the overall cost and prolonging the service life of the wind turbine.
The marine fan with the damping and cooling functions comprises a fan shell, a fan and a wind driven generator, wherein the front part of the fan shell is rotationally connected with the fan, and the wind driven generator connected with a fan rotating shaft is fixedly arranged at the rear part of the fan shell; the front end of the fan shell is provided with a damping unit for elastically propping up the front end of the fan rotating shaft, and the rear end of the fan shell is provided with a cooling unit rotationally and fixedly connected to the rear end of the fan rotating shaft;
the shock absorbing unit includes: the device comprises a spherical mass block, radial spring assemblies and axial spring assemblies, wherein the spherical mass block is suspended in a cavity at the front end of a fan shell, the spherical mass block is elastically and buffer connected with the inner wall of the front end of the fan shell on a vertical plane through a plurality of radial spring assemblies, and the spherical mass block is respectively and elastically propped and connected with the end part of a fan rotating shaft and the inner wall of the front end of the fan shell on a horizontal plane through a plurality of axial spring assemblies;
the cooling unit includes: the inner support block penetrates through the inner part of the inner support block and circumferentially rotates to support the fan rotating shaft, and the outer Zhou Chuanre of the inner support block is fixedly connected with the cooling outer frame; magnetic cooling modules are symmetrically and fixedly arranged on two sides of the cooling outer frame.
Preferably, the radial spring assemblies are circumferentially and uniformly distributed on a radial tangential plane at the front end of the fan shell, and the radial spring assemblies comprise alloy memory springs and dry friction damping vibration absorbers which are fixedly connected; the alloy memory spring is fixedly connected with the inner wall of the fan shell; the dry friction damping vibration absorber is fixedly connected with a spherical mass block.
Preferably, the axial spring assembly comprises a tension spring, a damper and a Y-shaped connecting rod, wherein the tension spring and the damper are arranged in parallel, one ends of the tension spring and the damper are fixedly connected to the inner wall of the front end of the fan shell, and the other ends of the tension spring and the damper are fixedly connected with the Y-shaped connecting rod; the other end of the Y-shaped connecting rod is fixedly supported on the spherical mass block.
Preferably, the damper is arranged below the tension spring in parallel, and comprises a cylindrical sleeve and a cylindrical sliding block; the inner elastic support of the cylindrical sliding block is connected with a compound spring, and the outer part of the cylindrical sliding block is sequentially sleeved with a high-strength rubber spring and a low-strength rubber spring from inside to outside; one end of the compound spring is elastically propped against the axial end face of the cylindrical sliding block, and the other end of the compound spring is elastically propped against the axial end face of the cylindrical sleeve; the circumferential outer wall of the low-strength rubber spring is in friction fit with the circumferential inner wall of the cylindrical sleeve.
Preferably, the extending direction of the fan rotating shaft is defined as X direction, the direction vertical to the fan rotating shaft on the horizontal plane is defined as Y direction, the direction vertical to the fan rotating shaft on the vertical plane is defined as Z direction, and the magnetic cooling module comprises an inner circulation cavity and an outer circulation cavity which are integrally arranged on two sides of the cooling outer frame along the X direction and filled with refrigerant; the two Z-direction side walls of the inner circulation cavity are both in heat transfer connection with the outer circulation cavity, magnetic material particles with a magnetocaloric effect are filled in the inner circulation cavity, and electromagnets for driving the magnetic material particles to move in the magnetic field in the inner circulation cavity are fixedly arranged on the two Y-direction side walls of the inner circulation cavity.
Preferably, the two Z-direction side walls of the inner circulation cavity are fixedly provided with heat-conducting partition plates for separating the inner circulation cavity from the outer circulation cavity and carrying out heat transfer; the outer wall of the outer circulation cavity is fixed with the cooling outer frame and is in heat conduction connection.
Preferably, one end of the inner circulation cavity is communicated with the outer circulation cavity, the other end of the inner circulation cavity is a liquid inlet end of the refrigerant, and the other end of the outer circulation cavity is a liquid outlet end of the refrigerant.
The invention has the advantages and technical effects that:
the offshore wind turbine with the shock absorption and cooling functions has the advantages that when the spherical mass block is affected by external environmental load to generate vibration, the dry friction damping shock absorbers with the rubber plugs arranged front and back generate friction damping effect according to the vibration caused by the external environmental load to form a piston effect, and meanwhile, the dry friction damping shock absorbers have better shock absorption effect under the action of the shape alloy memory spring.
Compared with the traditional passive vibration damper, the vibration damper has the characteristics of small displacement of a mass block, multiple vibration damping and energy consumption mechanisms, good stability and the like; the damping device for the offshore wind turbine provided by the invention is provided with two nonlinear damping mechanisms of the piston and the spring, and is provided with the dry friction damper, so that the damping energy consumption capacity of the damping device is greatly enhanced, the stability of the damping device is improved, and the offshore wind turbine has good damping effect under the action of external environmental loads such as wind, waves and the like.
The offshore wind turbine with the damping and cooling functions has the advantages that the inner supporting block supports the fan rotating shaft and conducts heat to the cooling outer frame, and the cooling outer frame conducts heat to the magnetic cooling module and achieves final heat dissipation; the external circulation cavity heat transfer contact cooling outer frame of the magnetic cooling module is used as preliminary precooling, and the magnetic material particles have the functions of increasing the flow resistance of the refrigerant in the internal circulation cavity and prolonging the residence time of the refrigerant in the internal circulation cavity on one hand; on the other hand, as the magnetism of the electromagnet changes, the magnetic material particles disturb the refrigerant in the inner circulation cavity so as to increase the contact area between the refrigerant and the Y-direction side wall of the inner circulation cavity, and therefore the heat absorption effect of the refrigerant is improved.
In the cooling unit, the refrigerant adopts clean pure materials and exchanges heat with the solid magnetic materials, and environmental load substances such as Freon gas and the like are not needed to be used; in addition, the magnetism of the electromagnet can be effectively controlled by switching on and off of current. When the switch is closed, the magnetism of the electromagnet immediately disappears, and when the switch is opened, the magnetism of the electromagnet immediately occurs. The problem that the magnet does not work after the cooling device runs for a long time is effectively avoided. Finally, the energy consumed by the invention is the electric energy generated by the small fan at the upper part of the engine room, and no extra electric power is needed for energy supply.
Drawings
FIG. 1 is a cross-sectional view of the overall structure of the present invention;
FIG. 2 is an enlarged view of a portion of the front end of the blower housing of FIG. 1;
FIG. 3 is an enlarged view of a portion of the axial spring assembly of FIG. 2;
FIG. 4 is a schematic radial cross-sectional view of the front end of the blower housing of the present invention;
FIG. 5 is a schematic cross-sectional view of a cooling unit of the present invention;
FIG. 6 is a schematic diagram of a refrigeration cycle of a cooling unit according to the present invention;
in the figure: 1-a damping unit; 2-fans; 3-a fan shaft; 4-a cooling unit; 5-a fan housing; 6-a wind power generator; 7-a tension spring; 8-radial spring assembly; 9-a spherical mass; a 10-Y-shaped connecting rod; 11-a compound spring; 12-a low strength rubber spring; 13-high strength rubber springs; 14-a cylindrical slider; 15-a cylindrical sleeve; 16-alloy memory springs; 17-a dry friction damping absorber; 18-an electromagnet; 19-cooling the outer frame; 20-inner support blocks; 21-an outer circulation chamber; 22-a heat conducting separator; 23-an internal circulation chamber; 24-particles of magnetic material.
Detailed Description
For a further understanding of the nature, features, and efficacy of the present invention, the following examples are set forth to illustrate, but are not limited to, the invention. The present embodiments are to be considered as illustrative and not restrictive, and the scope of the invention is not to be limited thereto.
An offshore wind turbine with damping and cooling functions comprises a wind turbine shell 5, a fan 2 and a wind turbine 6, wherein the front part of the wind turbine shell is rotationally connected with the fan, and the rear part of the wind turbine shell is fixedly provided with the wind turbine connected with a fan rotating shaft 3; the front end of the fan shell is provided with a damping unit 1 for elastically propping up the front end of the fan rotating shaft, and the rear end of the fan shell is provided with a cooling unit 4 rotationally and fixedly connected to the rear end of the fan rotating shaft;
the shock absorbing unit includes: the fan comprises a spherical mass block 9, radial spring assemblies 8 and axial spring assemblies, wherein the spherical mass block is suspended in the cavity at the front end of the fan shell, the spherical mass block is elastically and buffer connected with the inner wall of the front end of the fan shell on a vertical plane through a plurality of radial spring assemblies, and the spherical mass block is respectively and elastically propped and connected with the end part of a fan rotating shaft and the inner wall of the front end of the fan shell on a horizontal plane through a plurality of axial spring assemblies;
the cooling unit includes: the inner support block 20, the cooling outer frame 19 and the magnetic cooling module, wherein the inner part of the inner support block penetrates and circumferentially rotates to support the fan rotating shaft, and the outer Zhou Chuanre of the inner support block is fixedly connected with the cooling outer frame; magnetic cooling modules are symmetrically and fixedly arranged on two sides of the cooling outer frame.
Preferably, the radial spring assemblies are circumferentially and uniformly distributed on a radial tangential plane at the front end of the fan shell, and the radial spring assemblies comprise an alloy memory spring 16 and a dry friction damping vibration absorber 17 which are fixedly connected; the alloy memory spring is fixedly connected with the inner wall of the fan shell; the dry friction damping vibration absorber is fixedly connected with a spherical mass block.
Preferably, the axial spring component comprises a tension spring 7, a damper and a Y-shaped connecting rod 10, wherein the tension spring and the damper are arranged in parallel, one ends of the tension spring and the damper are fixedly connected to the inner wall of the front end of the fan shell, and the other ends of the tension spring and the damper are fixedly connected with the Y-shaped connecting rod; the other end of the Y-shaped connecting rod is fixedly supported on the spherical mass block.
Preferably, the damper is arranged below the tension spring in parallel, and comprises a cylindrical sleeve 15 and a cylindrical sliding block 14; the inner elastic support of the cylindrical sliding block is connected with a composite spring 11, and the outer part of the cylindrical sliding block is sequentially sleeved with a high-strength rubber spring 13 and a low-strength rubber spring 12 from inside to outside; one end of the compound spring is elastically propped against the axial end face of the cylindrical sliding block, and the other end of the compound spring is elastically propped against the axial end face of the cylindrical sleeve; the circumferential outer wall of the low-strength rubber spring is in friction fit with the circumferential inner wall of the cylindrical sleeve.
Preferably, the extending direction of the fan rotating shaft is defined as X direction, the direction vertical to the fan rotating shaft on the horizontal plane is defined as Y direction, the direction vertical to the fan rotating shaft on the vertical plane is defined as Z direction, and the magnetic cooling module comprises an inner circulation cavity 23 and an outer circulation cavity 21 which are integrally arranged on two sides of the cooling outer frame along the X direction and filled with refrigerant; the two Z-direction side walls of the inner circulation cavity are both in heat transfer connection with the outer circulation cavity, the magnetic material particles 24 with a magnetocaloric effect are filled in the inner circulation cavity, and the electromagnets 18 for driving the magnetic material particles to move in the magnetic field in the inner circulation cavity are fixedly arranged on the two Y-direction side walls of the inner circulation cavity.
Preferably, the two Z-direction side walls of the inner circulation cavity are fixedly provided with heat conducting partition plates 22 for separating the inner circulation cavity from the outer circulation cavity and carrying out heat transfer; the outer wall of the outer circulation cavity is fixed with the cooling outer frame and is in heat conduction connection.
Preferably, one end of the inner circulation cavity is communicated with the outer circulation cavity, the other end of the inner circulation cavity is a liquid inlet end of the refrigerant, and the other end of the outer circulation cavity is a liquid outlet end of the refrigerant.
In addition, the magnetic material particles, the dry friction damping vibration absorber and the electromagnet are preferably mature products in the prior art, and the refrigerant is also mature heat-conducting fluid in the prior art, such as water, ethanol or a mixture of the two.
In order to more clearly illustrate the embodiments of the present invention, the following provides an example:
1. damping unit: as shown in FIG. 1, the device distribution of the fan vibration reduction and motor cooling functions is planned briefly for the detailed view of the whole structure of the invention. As shown in fig. 2 and 4, when the offshore wind turbine is affected by external environmental loads such as wind and waves and vibrates, the spherical mass block can perform elastic reciprocating motion opposite to the vibration direction according to the vibration condition of the engine room, and the radial spring assembly and the axial spring assembly can generate friction damping with certain strength, so that the shell of the offshore wind turbine and the vibration damper are ensured to have the same vibration frequency, the damage of internal parts of the offshore wind turbine caused by vibration is reduced, and the service life of the offshore wind turbine is prolonged.
In addition, as shown in fig. 3, the damper has the advantages that when the spherical mass block is subjected to transverse vibration of external environmental load, the composite spring and the high-strength rubber springs on the side surfaces in the damper are compressed to play a role in reducing vibration, and the low-strength rubber springs are further arranged outside the high-strength rubber springs and play a role in reducing rebound force, so that a secondary buffering effect is achieved, and the damping effect of the device on a fan is better and more outstanding.
The high/low strength rubber spring is a high molecular elastomer and has the advantages of low self-heating, good rebound resilience, stable mechanical property, long service life, low cost and the like. The composite spring integrates the advantages of the metal spring and the rubber spring, overcomes the defects of the metal spring and the rubber spring, has stable shape and mechanical property, can bear heavy load and large deformation, and has the advantages of good vibration isolation and noise reduction effects, stable work, short time for passing through a resonance zone and the like.
The damping unit of the invention can be used for various mechanical devices and damping structures of buildings with a small change, and can also be used for balancing the stability of the building or reinforcing the device in a construction site. Has obvious effect in the related fields.
2. And a cooling unit: in the refrigeration cycle process, heat generated by rotation friction of a fan rotating shaft is sequentially transmitted to the cooling outer frame, the outer circulation cavity and the inner circulation cavity through the inner supporting block, and finally the heat is taken away by the outer circulation cavity, and in the process: A. the electromagnet is switched on/off in a reciprocating manner or is switched on and off in a magnetic pole direction in a reciprocating manner, and a magnetic field with alternating directions is formed in the inner circulation cavity to drive magnetic material particles (such as iron beads) in the inner circulation cavity to reciprocate so as to realize reciprocating disturbance of refrigerant in the inner circulation cavity; B. the refrigerant is introduced from the inner circulation cavity and discharged from the outer circulation cavity, and one end of the inner circulation cavity is communicated with one end of the outer circulation cavity, so that preliminary precooling of the outer circulation cavity and the cooling outer frame and full heat exchange of the outer circulation cavity and the inner circulation cavity are realized.
Finally, the invention adopts the mature products and the mature technical means in the prior art.
It will be understood that modifications and variations will be apparent to those skilled in the art from the foregoing description, and it is intended that all such modifications and variations be included within the scope of the following claims.
Claims (7)
1. The marine fan with the damping and cooling functions comprises a fan shell, a fan and a wind driven generator, wherein the front part of the fan shell is rotationally connected with the fan, and the wind driven generator connected with a fan rotating shaft is fixedly arranged at the rear part of the fan shell; the method is characterized in that: the front end of the fan shell is provided with a damping unit for elastically propping up the front end of the fan rotating shaft, and the rear end of the fan shell is provided with a cooling unit rotationally and fixedly connected to the rear end of the fan rotating shaft;
the shock absorbing unit includes: the device comprises a spherical mass block, radial spring assemblies and axial spring assemblies, wherein the spherical mass block is suspended in a cavity at the front end of a fan shell, the spherical mass block is elastically and buffer connected with the inner wall of the front end of the fan shell on a vertical plane through a plurality of radial spring assemblies, and the spherical mass block is respectively and elastically propped and connected with the end part of a fan rotating shaft and the inner wall of the front end of the fan shell on a horizontal plane through a plurality of axial spring assemblies;
the cooling unit includes: the inner support block penetrates through the inner part of the inner support block and circumferentially rotates to support the fan rotating shaft, and the outer Zhou Chuanre of the inner support block is fixedly connected with the cooling outer frame; magnetic cooling modules are symmetrically and fixedly arranged on two sides of the cooling outer frame.
2. An offshore wind turbine with damping and cooling function according to claim 1, wherein: the radial spring assemblies are circumferentially and uniformly distributed on a radial tangential plane at the front end of the fan shell, and comprise alloy memory springs and dry friction damping vibration absorbers which are fixedly connected; the alloy memory spring is fixedly connected with the inner wall of the fan shell; the dry friction damping vibration absorber is fixedly connected with a spherical mass block.
3. An offshore wind turbine with damping and cooling function according to claim 1, wherein: the axial spring assembly comprises a tension spring, a damper and a Y-shaped connecting rod, wherein the tension spring and the damper are arranged in parallel, one ends of the tension spring and the damper are fixedly connected to the inner wall of the front end of the fan shell, and the other ends of the tension spring and the damper are fixedly connected with the Y-shaped connecting rod; the other end of the Y-shaped connecting rod is fixedly supported on the spherical mass block.
4. An offshore wind turbine with damping and cooling function according to claim 3, wherein: the damper is arranged below the tension spring in parallel and comprises a cylindrical sleeve and a cylindrical sliding block; the inner elastic support of the cylindrical sliding block is connected with a composite spring, and the outer part of the cylindrical sliding block is sequentially sleeved with a high-strength rubber spring and a low-strength rubber spring from inside to outside; one end of the compound spring is elastically propped against the axial end face of the cylindrical sliding block, and the other end of the compound spring is elastically propped against the axial end face of the cylindrical sleeve; the circumferential outer wall of the low-strength rubber spring is in friction fit with the circumferential inner wall of the cylindrical sleeve.
5. The offshore wind turbine with damping and cooling function according to claim 1, wherein the extending direction of the fan rotation axis is defined as X-direction, the direction perpendicular to the fan rotation axis on the horizontal plane is defined as Y-direction, and the direction perpendicular to the fan rotation axis on the vertical plane is defined as Z-direction, and the offshore wind turbine is characterized in that: the magnetic cooling module comprises an inner circulation cavity and an outer circulation cavity which are integrally arranged on two sides of the cooling outer frame along the X direction and filled with refrigerant; the two Z-direction side walls of the inner circulation cavity are both in heat transfer connection with the outer circulation cavity, magnetic material particles with a magnetocaloric effect are filled in the inner circulation cavity, and electromagnets for driving the magnetic material particles to move in the magnetic field in the inner circulation cavity are fixedly arranged on the two Y-direction side walls of the inner circulation cavity.
6. The offshore wind turbine with damping and cooling function according to claim 5, wherein: the two Z-direction side walls of the inner circulation cavity are fixedly provided with heat-conducting partition plates which separate the inner circulation cavity from the outer circulation cavity and conduct heat transfer; the outer wall of the outer circulation cavity is fixed with the cooling outer frame and is in heat conduction connection.
7. The offshore wind turbine with damping and cooling function according to claim 6, wherein: one end of the inner circulation cavity is communicated with the outer circulation cavity, the other end of the inner circulation cavity is a liquid inlet end of the refrigerant, and the other end of the outer circulation cavity is a liquid discharge end of the refrigerant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310791118.XA CN116753115A (en) | 2023-06-30 | 2023-06-30 | Marine fan with shock attenuation and cooling function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310791118.XA CN116753115A (en) | 2023-06-30 | 2023-06-30 | Marine fan with shock attenuation and cooling function |
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| CN116753115A true CN116753115A (en) | 2023-09-15 |
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| CN202310791118.XA Pending CN116753115A (en) | 2023-06-30 | 2023-06-30 | Marine fan with shock attenuation and cooling function |
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| CN113266533A (en) * | 2021-06-02 | 2021-08-17 | 安徽三联学院 | Aerogenerator gear box with heat radiation structure |
| CN215566407U (en) * | 2021-08-27 | 2022-01-18 | 天津明智润阳技术有限公司 | Tower section of thick bamboo door magnetism refrigeration heat abstractor |
| CN114607646A (en) * | 2022-03-02 | 2022-06-10 | 豪派福风机科技(苏州)有限公司 | Dynamic vibration absorber for industrial fan |
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2023
- 2023-06-30 CN CN202310791118.XA patent/CN116753115A/en active Pending
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| KR20120107753A (en) * | 2011-03-22 | 2012-10-04 | 주식회사 이잰 | Damper and wind generator having that |
| CN110397698A (en) * | 2019-07-18 | 2019-11-01 | 湖南科技大学 | Offshore wind farm device any direction shock absorption system |
| CN111043791A (en) * | 2019-12-26 | 2020-04-21 | 珠海格力电器股份有限公司 | Magnetic refrigerating device |
| CN113266533A (en) * | 2021-06-02 | 2021-08-17 | 安徽三联学院 | Aerogenerator gear box with heat radiation structure |
| CN215566407U (en) * | 2021-08-27 | 2022-01-18 | 天津明智润阳技术有限公司 | Tower section of thick bamboo door magnetism refrigeration heat abstractor |
| CN114607646A (en) * | 2022-03-02 | 2022-06-10 | 豪派福风机科技(苏州)有限公司 | Dynamic vibration absorber for industrial fan |
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