CN119084231A - A multi-stage series negative pressure suction fan device - Google Patents
A multi-stage series negative pressure suction fan device Download PDFInfo
- Publication number
- CN119084231A CN119084231A CN202411431695.9A CN202411431695A CN119084231A CN 119084231 A CN119084231 A CN 119084231A CN 202411431695 A CN202411431695 A CN 202411431695A CN 119084231 A CN119084231 A CN 119084231A
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- China
- Prior art keywords
- negative pressure
- blades
- fan
- spray pipe
- pressure suction
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- 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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- 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
- F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor
- F03D1/04—Wind motors with rotation axis substantially parallel to the air flow entering the rotor having stationary wind-guiding means, e.g. with shrouds or channels
- F03D1/046—Wind motors with rotation axis substantially parallel to the air flow entering the rotor having stationary wind-guiding means, e.g. with shrouds or channels comprising additional flow modifying means, e.g. vanes or turbulators
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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
- F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor
- F03D1/04—Wind motors with rotation axis substantially parallel to the air flow entering the rotor having stationary wind-guiding means, e.g. with shrouds or channels
- F03D1/051—Multiple shrouds, e.g. in series or in parallel
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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
- F03D7/0204—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor for orientation in relation to wind direction
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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)
- Power Engineering (AREA)
- Wind Motors (AREA)
Abstract
The invention discloses a multistage series negative pressure suction repair type fan device, which relates to the technical field of wind power generation and comprises a cabin arranged on a tower, wherein front blades are arranged on the outer side wall of the front end of the cabin, a negative pressure suction sieve tube is arranged on the side wall of the cabin and positioned behind the front blades, a plurality of sieve holes are arranged on the side wall of the negative pressure suction sieve tube, a plurality of rear blades are sequentially arranged on the outer side wall of the cabin and positioned behind the front blades, wind gathering front concave auxiliary wings are respectively arranged at the free ends of the front blades and the rear blades, the front blades and the rear blades are respectively connected with different hubs in the cabin and rotate at different speeds in different directions, a negative pressure fan is arranged at the rear end of the negative pressure suction sieve tube in the cabin, a closed spray pipe is arranged at the rear end of the negative pressure fan, and spray pipe fan blades connected with a spray pipe generator are arranged on the inner side wall of the closed spray pipe. The invention relieves the technical problem of low wind energy utilization rate of the existing fan.
Description
Technical Field
The invention relates to the technical field of wind power generation, in particular to a multistage series negative pressure suction repair type fan device.
Background
The current wind power industry has large investment, low economic benefit and long investment recovery period (generally 8-12 years). The most important problem is that the wind power system is low in efficiency and low in generating capacity. The existing fan has high air leakage rate, the wake flow residual energy of the fan blade cannot be reused for many times, 70% of wind energy is wasted, and the shape and structure defects of the existing fan blade enable the stress type of the existing fan blade to be relatively less, so that the wind energy utilization rate is low.
Disclosure of Invention
The invention aims to solve at least one technical problem and provide a multistage series negative pressure suction repair type fan device.
The embodiment of the invention provides a multistage series negative pressure suction repair fan device, which comprises a cabin arranged on a tower, wherein front-end outer side walls of the cabin are provided with front-end blades, negative pressure suction sieve tubes are arranged on side walls of the cabin and positioned behind the front-end blades, a plurality of sieve holes are arranged on the side walls of the negative pressure suction sieve tubes, a plurality of rear-end blades are sequentially arranged on the outer side walls of the cabin and positioned behind the front-end blades, wind-collecting front-concave auxiliary wings are respectively arranged at free ends of the front-end blades and the rear-end blades, the front-end blades and the rear-end blades are respectively connected to different hubs in the cabin and rotate at different speeds in different directions, a negative pressure fan is arranged in the cabin and positioned at the rear end of the negative pressure suction sieve tubes, a closed spray pipe is arranged at the rear end of the negative pressure fan, and spray pipe fan blades connected with a spray pipe generator are arranged on the inner side walls of the closed spray pipe.
Further, the top end of the tower is provided with a deflection-adjusting wind-aligning rotary tray, and the engine room is arranged on the deflection-adjusting wind-aligning rotary tray.
Further, the shapes of the front blade and the rear blade are fan-shaped along the spiral shape of the blade in the radial direction, and the spiral inclination directions of the front blade and the rear blade are opposite.
Further, the leading blade and the plurality of trailing blades have the same radius.
Further, the leading blade and the plurality of trailing blades are each on different planes of rotation.
Further, the wind-collecting front concave auxiliary wing is a blade tip in a concave shape in a windward side.
Further, the negative pressure fan comprises negative pressure fan blades and a motor, wherein the motor is used for driving the negative pressure fan blades to rotate.
Further, the airtight spray pipe comprises a high-pressure spray pipe and a low-pressure spray pipe, the high-pressure spray pipe is arranged at the rear end of the negative pressure fan, the low-pressure spray pipe is arranged at the rear end of the high-pressure spray pipe, the spray pipe fan blade is arranged inside the high-pressure spray pipe, and the spray pipe generator is arranged at a position between the high-pressure spray pipe and the low-pressure spray pipe.
The invention provides a multistage series negative pressure suction repair type fan device, which is characterized in that a series blade fan sucks more fresh wind energy compared with a parallel blade fan, a rear blade can recycle the wind energy which is not absorbed by a front blade, the air leakage rate of the fan is reduced, the tail flow residual energy of the front blade is better utilized, a negative pressure exhaust fan sucks the tail flow of the blade through a negative pressure suction porous screen pipe to form a negative pressure area, so that more outside fresh wind energy enters a closed spray pipe, the tail flow residual energy of the blade is recycled through a generator in the closed interior, the utilization efficiency of the wind energy is improved, and the technical problem of low wind energy utilization rate of the existing fan is solved.
Drawings
In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings that are needed in the detailed description of the embodiments and the prior art will be briefly described below, it being obvious that the drawings in the following description are some embodiments of the application and that other drawings may be obtained from these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a side view of a multistage series negative pressure suction and compensation fan device provided by an embodiment of the invention;
FIG. 2 is a front view of a multistage series negative pressure suction patch fan device according to an embodiment of the present invention;
Fig. 3 is a schematic diagram of an operating principle of a multistage series negative pressure suction repair type fan device according to an embodiment of the present invention.
In the figure, 1, a tower, 2, a cabin, 3, a front blade, 4, a negative pressure suction sieve tube, 5, sieve holes, 6, a rear blade, 7, a wind gathering front concave auxiliary wing, 8, a deviation-adjusting wind-opposite rotating tray, 9, a negative pressure fan, 91, a negative pressure fan blade, 92, a motor, 10, a closed spray pipe, 101, a high-pressure spray pipe, 102, a low-pressure spray pipe, 11, a spray pipe generator, 12 and a spray pipe fan blade.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Fig. 1 is a side view of a multistage serial negative pressure suction repair type fan device according to an embodiment of the present invention, and fig. 2 is a front view of the multistage serial negative pressure suction repair type fan device according to an embodiment of the present invention. As shown in figures 1 and 2, the device comprises a cabin 2 arranged on a tower 1, a front blade 3 is arranged on the outer side wall of the front end of the cabin 2, a negative pressure air suction sieve tube 4 is arranged on the side wall of the cabin 2 and positioned behind the front blade 3, a plurality of sieve holes 5 are arranged on the side wall of the negative pressure air suction sieve tube 4, a plurality of rear blades 6 are sequentially arranged on the outer side wall of the cabin 2 and positioned behind the front blade 3, wind gathering front concave auxiliary wings 7 are arranged at the free ends of the front blade 3 and the rear blade 6, and the front blade 3 and the rear blade 6 are respectively connected with different hubs in the cabin 2 and rotate in different directions and different speeds.
In the embodiment of the invention, the shapes of the front blade 3 and the rear blade 6 are all fan-shaped along the spiral shape of the blade in the radial direction, and the spiral inclination directions of the front blade 3 and the rear blade 6 are opposite, so that the direction of the wind energy driving blade is opposite. Specifically, each of the front blades 3 and the rear blades 6 is connected with an independent hub, and the hub is connected with an independent generator behind the hub to convert mechanical energy of hub rotation into electric energy.
Specifically, as shown in fig. 2, the leading blade 3 and the plurality of trailing blades 6 have the same radius. Preferably, as shown in fig. 1 and fig. 2, the device provided by the embodiment of the invention is provided with one front blade 3 and seven rear blades 6 on the outer side wall of the nacelle 2, wherein the front blade 3 and the rear blades 6 are all positioned on different rotation planes, namely, only one blade is positioned in the same rotation plane, all stages of blades are staggered, and are symmetrically distributed on a projection plane when seen along the rotation axis direction, and the rear blades 6 are opposite to the front blades 3 in rotation direction and different in speed. Through the structure, the invention can fully utilize and absorb the residual energy of the redundant wake flow, and improve the power generation efficiency of the fan.
Specifically, the wind-collecting front concave auxiliary wing 7 is a blade tip in a concave shape in a windward side.
Specifically, as shown in fig. 1, an offset wind-aligning rotary tray 8 is disposed at the top end of the tower 1, and the nacelle 2 is disposed on the offset wind-aligning rotary tray 8.
Specifically, as shown in fig. 1, a negative pressure fan 9 is arranged in the cabin 2 at the rear end of the negative pressure suction sieve tube 4, a closed spray pipe 10 is arranged at the rear end of the negative pressure fan 9, and spray pipe fan blades 12 connected with a spray pipe generator 11 are arranged on the inner side wall of the closed spray pipe 10.
Specifically, as shown in fig. 1, the negative pressure fan 9 includes a negative pressure fan blade 91 and a motor 92, and the motor 92 is used for driving the negative pressure fan blade 91 to rotate and sucking the external surplus wake into the cabin 2.
As shown in fig. 1, the closed nozzle 10 comprises a high-pressure nozzle 101 and a low-pressure nozzle 102, the high-pressure nozzle 101 is arranged at the rear end of the negative pressure fan 9, the low-pressure nozzle 102 is arranged at the rear end of the high-pressure nozzle 101, nozzle fan blades 12 are arranged inside the high-pressure nozzle 101, and a nozzle generator 11 is arranged at a position between the high-pressure nozzle 101 and the low-pressure nozzle 102.
Fig. 3 is a schematic diagram of an operating principle of a multistage series negative pressure suction repair type fan device according to an embodiment of the present invention. As shown in FIG. 3, the device provided by the embodiment of the invention absorbs wind energy by improving the front-mounted blade with the blade shape of a short wide fan, and the surplus wind energy is reused by the rear-mounted blade with a plurality of serially connected radiuses different from those of the front-mounted blade, and the direction change of the wake flow of the front-mounted blade is always opposite to the rotation direction of the blade, so that the direction of the rear-mounted blade is opposite to the direction of the front-mounted blade (the direction of the windward side inclination of the blade is opposite) for the purpose of fine wake flow residual energy utilization. The multi-stage serial (different-direction and different-speed) negative pressure suction-compensation type high-efficiency fan is obtained, the higher utilization rate of wake wind energy is achieved, wake residual energy of the front blades can be absorbed into the engine room by a negative pressure suction sieve tube on the side wall of the engine room, the redundant wind energy is sucked by the negative pressure suction fan and enters the airtight spray tube for pressurization, the wind energy is reused, and the wind energy is converted into electric energy by the generator, so that the efficiency and the wind energy utilization rate of the fan are improved more effectively.
As can be seen from the above description, the embodiment of the present invention provides a multistage series negative pressure suction repair type fan device, which has the following technical effects compared with the prior art:
(1) The serial blade fan sucks more fresh wind energy than the parallel blade fan, the rear blade can recycle the wind energy which is not absorbed by the front blade, the air leakage rate of the fan is reduced, the wake flow residual energy of the front blade is better utilized, and the fan has higher conversion efficiency of wind energy through improving the appearance and surface roughness of the fan blade;
(2) The negative pressure exhaust fan sucks wake flow behind the blades through the negative pressure air suction porous sieve tube to form a negative pressure area, so that more outside fresh wind energy enters the sealed spray tube, the wake flow residual energy of the blades is recycled through the generator in the sealed interior, and the utilization efficiency of the wind energy is improved.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (8)
1. The multistage series negative pressure suction repair type fan device is characterized by comprising a cabin arranged on a tower, wherein front end outer side walls of the cabin are provided with front blades, negative pressure suction sieve tubes are arranged on side walls of the cabin and positioned behind the front blades, and a plurality of sieve holes are arranged on side walls of the negative pressure suction sieve tubes;
The inside position that is located of cabin negative pressure induced draft screen pipe rear end sets up negative pressure fan, negative pressure fan's rear end sets up airtight spray tube, airtight spray tube's inside wall sets up the spray tube fan blade of being connected with the spray tube generator.
2. The multi-stage series negative pressure suction and supplement fan device as set forth in claim 1, wherein the tower top is provided with a yaw alignment wind-aligning rotary tray, and the nacelle is arranged on the yaw alignment wind-aligning rotary tray.
3. The multi-stage series negative pressure suction and compensation type fan device according to claim 1, wherein the front blades and the rear blades are respectively in a fan shape along the spiral shape in the radial direction of the blades, and the spiral inclination directions of the front blades and the rear blades are opposite.
4. The multi-stage series negative pressure suction patch fan device of claim 1, wherein the leading blade and the trailing blades have the same radius.
5. The multi-stage series negative pressure suction patch fan device of claim 1, wherein the leading blade and the plurality of trailing blades are each on different planes of rotation.
6. The multistage series negative pressure suction and supplement type fan device as claimed in claim 1, wherein the wind-collecting front concave auxiliary wing is a blade tip in a concave shape in a windward side.
7. The multistage tandem negative pressure suction and repair type fan device according to claim 1, wherein the negative pressure fan comprises negative pressure fan blades and a motor, and the motor is used for driving the negative pressure fan blades to rotate.
8. The multistage series negative pressure suction and supplement type fan device according to claim 1, wherein the closed spray pipe comprises a high-pressure spray pipe and a low-pressure spray pipe, the high-pressure spray pipe is arranged at the rear end of the negative pressure fan, the low-pressure spray pipe is arranged at the rear end of the high-pressure spray pipe, the spray pipe fan blade is arranged inside the high-pressure spray pipe, and the spray pipe generator is arranged at a position between the high-pressure spray pipe and the low-pressure spray pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411431695.9A CN119084231A (en) | 2024-10-14 | 2024-10-14 | A multi-stage series negative pressure suction fan device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411431695.9A CN119084231A (en) | 2024-10-14 | 2024-10-14 | A multi-stage series negative pressure suction fan device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN119084231A true CN119084231A (en) | 2024-12-06 |
Family
ID=93701285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202411431695.9A Pending CN119084231A (en) | 2024-10-14 | 2024-10-14 | A multi-stage series negative pressure suction fan device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN119084231A (en) |
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2024
- 2024-10-14 CN CN202411431695.9A patent/CN119084231A/en active Pending
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