CN216922359U - Axial flow fan bracket for avoiding resonance of axial flow fan of wind generating set - Google Patents
Axial flow fan bracket for avoiding resonance of axial flow fan of wind generating set Download PDFInfo
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- CN216922359U CN216922359U CN202220535333.4U CN202220535333U CN216922359U CN 216922359 U CN216922359 U CN 216922359U CN 202220535333 U CN202220535333 U CN 202220535333U CN 216922359 U CN216922359 U CN 216922359U
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- axial flow
- flow fan
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- 230000003014 reinforcing effect Effects 0.000 claims abstract description 14
- 238000003466 welding Methods 0.000 claims description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 3
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000007547 defect Effects 0.000 abstract description 3
- 238000005457 optimization Methods 0.000 description 5
- 238000010248 power generation Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 241000883990 Flabellum Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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
- Y02E10/728—Onshore wind turbines
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Abstract
The utility model provides an axial flow fan bracket for avoiding the resonance of an axial flow fan of a wind generating set, which comprises: a cross beam, a side beam, a bottom beam; the side beams are arranged at two ends of the cross beam and are welded and connected with the cross beam; the bottom beam is arranged on the inner side of the cross beam, and two ends of the bottom beam are welded with the cross beam; the upright post is arranged above one end of the side beam and is welded with the side beam; the mounting seat is mounted at the top end of the upright post; one end of the reinforcing rib is welded on the inner wall of the upright post, and the other end of the reinforcing rib is welded with the mounting seat; the axial flow fan bracket has the advantages of firm structure and strong stability by improving the axial flow fan bracket for avoiding the resonance of the axial flow fan of the wind generating set, so that the bracket structure integrally improves the first-order frequency, avoids the resonance, reduces the failure frequency of the fan, improves the generated energy and the availability of the fan, and has strong practicability, thereby effectively solving the problems and the defects of the existing device.
Description
Technical Field
The utility model relates to the technical field of wind generating sets, in particular to an axial flow fan support for avoiding resonance of an axial flow fan of a wind generating set.
Background
Wind power generation refers to converting kinetic energy of wind into electric energy. The wind power generation is very environment-friendly, and the wind energy is huge, so that the wind power generation is increasingly paid attention by various countries in the world.
Thirteen-room wind power station golden wind 1.5MW wind generating set axial flow fan support adopts similar cantilever beam mode to support, axial flow fan flabellum is overweight, axial flow fan support is soft, easy vibrations, and first order frequency is in axial flow fan work frequency conversion within range, arouse resonance easily, cause axial flow fan body because of the vibration intensity is too big, cause the bearing fragile, in addition the axial flow fan front and back bearing is non-maintaining bearing, the life-span is limited when high-speed operation, so lead to on-the-spot axial flow fan often to damage, the fan reports axial flow fan feedback frequently and loses the trouble, cause fan generated energy and usable hours to reduce by a wide margin.
In view of this, research and improvement are made to solve the existing problems, and an object of the present invention is to provide an axial flow fan bracket for avoiding resonance of an axial flow fan of a wind turbine generator system, and to achieve the purposes of solving the problems and improving the practical value by using this technique.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an axial flow fan bracket for avoiding the resonance of an axial flow fan of a wind generating set, so as to solve the problems and the defects in the background technology.
In order to achieve the purpose, the utility model provides an axial flow fan bracket for avoiding the resonance of an axial flow fan of a wind generating set, which is achieved by the following specific technical means:
an axial flow fan bracket for avoiding resonance of an axial flow fan of a wind generating set comprises: the device comprises a cross beam, a side beam, a bottom beam, a stand column, a mounting seat, a reinforcing rib and a side branch beam; the side beams are arranged at two ends of the cross beam and are welded and connected with the cross beam; the bottom beam is arranged on the inner side of the cross beam, and two ends of the bottom beam are welded with the cross beam; the upright post is arranged above one end of the side beam and is welded with the side beam; the mounting seat is mounted at the top end of the upright post; one end of the reinforcing rib is welded on the inner wall of the upright post, and the other end of the reinforcing rib is welded with the mounting seat; the side supporting beam is arranged above the other end of the side beam, and the side supporting beam is welded with the side beam; the top end of the side supporting beam is connected with the upright post in a welding mode.
As further optimization of the technical scheme, the cross beam, the side beam, the bottom beam, the stand column and the side branch beam are all channel steel.
As a further optimization of the technical scheme, the bottom beam is arranged in the middle of the cross beam, and the cross beam, the side beams and the bottom beam form a reversed V-shaped frame structure through welding.
As a further optimization of the technical scheme, the side beams, the upright posts and the side branch beams form a right-angled triangular frame structure through welding.
As a further optimization of the technical scheme, the reinforcing ribs are of a right-angle trapezoid plate-shaped structure.
As a further optimization of the technical scheme, the side beams and the bottom or the side surface of the bottom beam are adsorbed with a plurality of magnets, and the natural frequency of the axial flow fan support is changed by the weight adsorbed by the magnets, so that the natural frequency of the axial flow fan support is different from the natural frequency of the axial flow fan of the wind generating set, and resonance is avoided.
Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages:
1. the cross beam, the side beam, the bottom beam, the upright post and the side branch beam are all provided with channel steel, so that the structure is firm, the stability is strong, and the deformation is difficult.
2. The bottom beam is arranged in the middle of the cross beam, the side beam and the bottom beam form a reversed V-shaped frame structure through welding, the structure is firm, the stability is strong, and the middle positions of the front cross beam and the rear cross beam are connected together through the bottom beam, so that the first-order frequency of the support structure is integrally improved, resonance is avoided, the failure frequency of the fan is reduced, and the generating capacity and the availability of the fan are improved.
3. According to the utility model, the side beams, the upright posts and the side branch beams are welded to form a right-angled triangular frame structure, and the side branch beams play a supporting role on the upright posts, so that the supporting firmness and stability of the upright posts are improved.
4. The axial flow fan bracket has the advantages of firm structure and strong stability by improving the axial flow fan bracket for avoiding the resonance of the axial flow fan of the wind generating set, so that the bracket structure integrally improves the first-order frequency, avoids the resonance, reduces the failure frequency of the fan, improves the generated energy and the availability of the fan, and has strong practicability, thereby effectively solving the problems and the defects of the existing device.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model. In the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged schematic view of the structure at A of the present invention;
FIG. 3 is a schematic side view of the present invention.
In the figure: crossbeam 1, curb girder 2, floorbar 3, stand 4, mount pad 5, strengthening rib 6, collateral branch roof beam 7.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
It is to be noted that, in the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the utility model.
Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Meanwhile, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "connected" and "connected" should be interpreted broadly, for example, as being fixedly connected, detachably connected, or integrally connected; the connection can be mechanical connection or electrical connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
Referring to fig. 1 to 3, the present invention provides a specific technical embodiment of an axial flow fan bracket for preventing an axial flow fan of a wind turbine generator set from resonating:
an axial flow fan bracket for avoiding the resonance of an axial flow fan of a wind generating set comprises: the beam comprises a cross beam 1, a side beam 2, a bottom beam 3, a stand column 4, a mounting seat 5, a reinforcing rib 6 and a side branch beam 7; the side beams 2 are arranged at two ends of the cross beam 1, and the side beams 2 are welded with the cross beam 1; the bottom beam 3 is arranged on the inner side of the cross beam 1, and two ends of the bottom beam 3 are welded with the cross beam 1; the upright post 4 is arranged above one end of the side beam 2, and the upright post 4 is welded with the side beam 2; the mounting seat 5 is mounted at the top end of the upright post 4; one end of the reinforcing rib 6 is welded on the inner wall of the upright post 4, and the other end of the reinforcing rib 6 is welded with the mounting seat 5; the side supporting beam 7 is arranged above the other end of the side beam 2, and the side supporting beam 7 is connected with the side beam 2 in a welding way; the top end of the side corbel 7 is connected with the upright post 4 in a welding way.
Specifically, as shown in fig. 1, the cross beam 1, the side beam 2, the bottom beam 3, the upright post 4 and the side branch beam 7 are all channel steel, and have firm structure, strong stability and difficult deformation.
Specifically, as shown in fig. 1, the bottom beam 3 is installed at the middle position of the cross beam 1, the side beam 2 and the bottom beam 3 form a reversed-square-shaped frame structure through welding, the structure is firm, the stability is strong, the middle positions of the front and rear side cross beams 1 are connected together through the bottom beam 3, the support structure integrally improves the first-order frequency, resonance is avoided, the frequency of fan faults is reduced, and the generated energy and the availability ratio of the fan are improved.
Specifically, as shown in fig. 3, the side beam 2, the upright post 4 and the side support beam 7 form a right-angled triangle frame structure through welding, and the side support beam 7 supports the upright post 4, so that the support firmness and stability of the upright post 4 are improved.
Specifically, as shown in fig. 2, the reinforcing ribs 6 have a rectangular trapezoidal plate-like structure.
Specifically, a plurality of magnets are adsorbed at the bottoms or the side faces of the side beams 2 and the bottom beams 3, the natural frequency of the axial flow fan support is changed through the weight of the magnets, the natural frequency of the axial flow fan support is different from that of the axial flow fan of the wind generating set, and resonance is avoided.
The method comprises the following specific implementation steps:
change the supporting structure form and with a tower section of thick bamboo fixed mode, it forms to all adopt the channel-section steel welding with original support, and utilize floorbar 3 to link together the intermediate position of both sides crossbeam 1 around, stand 4 supports, consolidate through side corbel bar 7, mount pad 5 is consolidated through strengthening rib 6, make the one-order frequency of overall promotion of supporting structure, avoid resonating, the fan trouble frequency has been reduced, the generated energy and the availability ratio of fan have been improved, make axial fan body vibration intensity accord with national standard.
In summary, the following steps: according to the axial flow fan support for avoiding the axial flow fan resonance of the wind generating set, the cross beam, the side beam, the bottom beam, the upright post and the side branch beam are all made of channel steel, so that the axial flow fan support is firm in structure, strong in stability and not prone to deformation; the bottom beam is arranged in the middle of the cross beam, the side beam and the bottom beam form a reversed V-shaped frame structure through welding, the structure is firm, the stability is strong, and the middle positions of the cross beams on the front side and the rear side are connected together through the bottom beam, so that the first-order frequency of the support structure is integrally improved, resonance is avoided, the failure frequency of the fan is reduced, and the generating capacity and the availability of the fan are improved; the side beams, the upright posts and the side branch beams are welded to form a right-angled triangular frame structure, so that the side branch beams support the upright posts, and the support firmness and stability of the upright posts are improved; through the improvement to the axial fan support of avoiding wind generating set axial fan resonance, have sound construction, stability strong for the overall promotion of supporting structure is first order frequency, avoids resonance, has reduced fan trouble frequency, has improved the generated energy and the availability ratio of fan, and the advantage that the practicality is strong, thereby the effectual problem and the not enough that appear in having solved current device.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. An axial flow fan bracket for avoiding the resonance of an axial flow fan of a wind generating set comprises: the device comprises a cross beam (1), a side beam (2), a bottom beam (3), a stand column (4), a mounting seat (5), a reinforcing rib (6) and a side branch beam (7); the method is characterized in that: the side beams (2) are arranged at two ends of the cross beam (1), and the side beams (2) are welded with the cross beam (1); the bottom beam (3) is arranged on the inner side of the cross beam (1), and two ends of the bottom beam (3) are welded with the cross beam (1); the upright post (4) is arranged above one end of the side beam (2), and the upright post (4) is welded with the side beam (2); the mounting seat (5) is mounted at the top end of the upright post (4); one end of the reinforcing rib (6) is welded on the inner wall of the upright post (4), and the other end of the reinforcing rib (6) is welded with the mounting seat (5); the side supporting beam (7) is arranged above the other end of the side beam (2), and the side supporting beam (7) is connected with the side beam (2) in a welding way; the top end of the side supporting beam (7) is connected with the upright post (4) in a welding mode.
2. The axial flow fan bracket for avoiding the resonance of the axial flow fan of the wind generating set according to claim 1, is characterized in that: the cross beam (1), the side beam (2), the bottom beam (3), the upright post (4) and the side supporting beam (7) are all channel steel.
3. The axial flow fan bracket for avoiding the resonance of the axial flow fan of the wind generating set according to claim 1, is characterized in that: the bottom beam (3) is arranged in the middle of the cross beam (1), and the cross beam (1), the side beam (2) and the bottom beam (3) form a reversed V-shaped frame structure through welding.
4. The axial flow fan bracket for avoiding the resonance of the axial flow fan of the wind generating set according to claim 1, is characterized in that: the side beams (2), the upright posts (4) and the side supporting beams (7) form a right-angled triangle frame structure through welding.
5. The axial flow fan bracket for avoiding the resonance of the axial flow fan of the wind generating set according to claim 1, is characterized in that: the reinforcing ribs (6) are in a right-angle trapezoid plate-shaped structure.
6. The axial flow fan bracket for avoiding the resonance of the axial flow fan of the wind generating set according to claim 1, is characterized in that: and a plurality of magnets are adsorbed at the bottoms or the side surfaces of the side beams (2) and the bottom beam (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220535333.4U CN216922359U (en) | 2022-03-09 | 2022-03-09 | Axial flow fan bracket for avoiding resonance of axial flow fan of wind generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220535333.4U CN216922359U (en) | 2022-03-09 | 2022-03-09 | Axial flow fan bracket for avoiding resonance of axial flow fan of wind generating set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216922359U true CN216922359U (en) | 2022-07-08 |
Family
ID=82227979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220535333.4U Expired - Fee Related CN216922359U (en) | 2022-03-09 | 2022-03-09 | Axial flow fan bracket for avoiding resonance of axial flow fan of wind generating set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216922359U (en) |
-
2022
- 2022-03-09 CN CN202220535333.4U patent/CN216922359U/en not_active Expired - Fee Related
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220708 |
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| CF01 | Termination of patent right due to non-payment of annual fee |