CN102913398A - Noise reduction system of wind generating set and wind generating set - Google Patents
Noise reduction system of wind generating set and wind generating set Download PDFInfo
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- CN102913398A CN102913398A CN2012104100917A CN201210410091A CN102913398A CN 102913398 A CN102913398 A CN 102913398A CN 2012104100917 A CN2012104100917 A CN 2012104100917A CN 201210410091 A CN201210410091 A CN 201210410091A CN 102913398 A CN102913398 A CN 102913398A
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Abstract
The invention discloses a noise reduction system of a wind generating set. The noise reduction system of the wind generating set comprises a sound-absorbing single body for absorbing noise; the sound-absorbing single body comprises a single bracket and a sound-absorbing component; the sound-absorbing component is arranged on the single bracket; the single bracket and a wind power generation apparatus are arranged at intervals; the sound-absorbing single body comprises a main sound-absorbing single body opposite to the wind power generation apparatus, and lateral sound-absorbing single bodies arranged at two sides of the wind power generation apparatus; and the main sound-absorbing single body is connected with the lateral sound-absorbing single bodies. With the adoption of the sound-absorbing single body, the noise emitted by a noise source can be absorbed, so as to achieve the purpose of noise reduction. According to the noise reduction system of the wind generating set, the noise reduction purpose is achieved without structural transformation on an original wind power generation apparatus; and the problem of great economic losses caused by transformation, replacement and shutdown of the wind power generation apparatus can be avoided. The invention also discloses a wind generating set provided with the noise reduction system. The noise of the wind generating set can be controlled at a lower noise level.
Description
Technical field
The present invention relates to Industrial noise control and administer technical field, more can be specifically, particularly a kind of wind power generating set noise reduction system and a kind of wind power generating set.
Background technique
Owing to the growth requirement of new energy, wind generating technology has obtained popularization energetically in recent years.Yet along with wind energy turbine set large scale investment operation, the land area that can install in the land constantly reduces, in order further to utilize wind-resources, wind field from resident, city also more and more close to, the noise problem that the blower fan running brings highlights.Because its degree that disturbs residents is larger, and the gradually enhancing of citizen's right-safeguarding consciousness, people complain also more and more to fan noise.
Because originally wind field is based upon remote no man's land more, cause the noise supervision to have certain problem, the noise problems that exceed standard that exist that cause wind power generating set more, the noise limit that can't satisfy among " wind energy turbine set noise limit and method of measurement thereof " (DL/T 1084-2008) 4 class areas requires (noise limit is 65dB between daytime, night noise 55dB).
The overall noise of wind power generating set is comprised of a lot of noise sources, the electromagnetic noise of mechanical noise, aerodynamic noise and the generator that produces comprising rotary component etc.In the field of noise control of wind power generating set, the at present formulation relevant for limitation standard of main research, to the standard of noise testing, and the noise reduction technology of the structure improvement of consideration wind-powered electricity generation unit and certain parts is realized the reduction of noise.Therefore the technology great majority about wind-powered electricity generation unit noise reduction all are to reach the noise reduction purpose by the mode of changing or improve modular construction.This is for the owner, the economic loss of bringing of transforming, change, stop work is very serious, therefore, need to consider to control and to be convenient to implement can not increase too many extra cost to its noise problem, especially need not structure is transformed the noise reduction measure of replacing.
In the noise of wind power generating set forms, following several main noise source is arranged: the one, by the intake and exhaust noise of radiation system, secondly be the construct noise by the vibration surface radiation, then be the noise problem that vibration causes.In above-mentioned numerous noise source, aerodynamic noise has occupied main constituent element, and one of them is wind power generating set outside exhaust sound is very important aerodynamic noise form, main exhaust sound source for wind power generating set, particularly directly to the noise of outside drain, can have a strong impact on the overall noise level of the outside displacement noise of wind power generating set.
In sum, how to reduce the noise of wind-driven generator, become those skilled in the art's problem demanding prompt solution.
Summary of the invention
The technical problem to be solved in the present invention is for providing a kind of wind power generating set noise reduction system and a kind of wind power generating set, this wind power generating set is equipped with this noise reduction system, in the present invention, this wind power generating set noise reduction system can effectively reduce the noise of wind-driven generator by its structural design.
For solving the problems of the technologies described above, the invention provides a kind of wind power generating set noise reduction system, be used for noise reduction is carried out in the exhaust of wind generating unit,
Comprise that described sound-absorbing monomer comprises support unit and sound-absorbing member for the sound-absorbing monomer that absorbs noise, described sound-absorbing member is arranged on the described support unit, and described support unit and described wind generating unit interval arrange;
Described sound-absorbing monomer comprises the main sound-absorbing monomer relative with described wind generating unit and is arranged at the side draught sound monomer of described wind generating unit both sides that described main sound-absorbing monomer is connected with described side draught sound monomer.
Preferably, described sound-absorbing monomer comprises the independent acoustic(al)absorbent and/or the auxiliary sound absorbing material that are used for absorbing noise that arranges.
Preferably, described acoustic(al)absorbent is that foamed ceramics, perlite acoustic(al)absorbent, foamed aluminium or compound perforated metal panel or employing sound-absorbing plate directly consist of.
Preferably, described acoustic(al)absorbent is the resonance absorber that forms of perforated plate or microperforated panel structure or is made of foamed ceramics, perlite acoustic(al)absorbent or foamed aluminium.
Preferably, described auxiliary sound absorbing material is for being made of lamination coating, foaming sound absorbing material, foamed ceramics, perlite sound absorbent and/or foamed aluminium material, and described acoustic(al)absorbent and described auxiliary sound absorbing material lamination arrange.
Preferably, described main sound-absorbing monomer be connected side draught sound monomer and removably connect by connected element.
Preferably, the top of described sound-absorbing monomer is relative with its underpart to be bent, and its overbending direction is towards described wind generating unit, and described sound-absorbing monomer top is straight, bending or arcuate structure.
Preferably, the bending angle of described bending structure is not less than 120 °.
The present invention also provides a kind of wind power generating set, comprises wind generating unit, also comprises aforesaid wind power generating set noise reduction system;
Described wind generating unit comprises the heat radiation venting gas appliance, and the height of described main sound-absorbing monomer is higher than 1.8 meters to 2 meters of described heat radiation venting gas appliance, and the interval between the described heat radiation venting gas appliance is at least 0.5 meter.
Preferably, the height of described side draught sound monomer is higher than 1.3 meters to 1.5 meters of described heat radiation venting gas appliance, and the interval between the described heat radiation venting gas appliance is at least 1 meter.
The invention provides a kind of wind power generating set noise reduction system, be used for wind generating unit is carried out noise reduction, comprise that the sound-absorbing monomer comprises support unit and sound-absorbing member for the sound-absorbing monomer that absorbs noise, sound-absorbing member is arranged on the support unit, and support unit and wind generating unit interval arrange; The sound-absorbing monomer comprises the main sound-absorbing monomer relative with wind generating unit and is arranged at the side draught sound monomer of wind generating unit both sides that main sound-absorbing monomer is connected with side draught sound monomer.
In the said structure design, the sound-absorbing monomer is the device that absorbs be used to carrying out noise, its sound-absorbing principle is by sound-absorbing member and noise producing resonance, because the noise energy that noise source (wind generating unit) sent within the unit time is certain, if sound-absorbing member resonates under the effect of noise and vibration, noise energy (acoustic energy greatly will be had, also can think the energy of air vibration) be converted into the mechanical energy (vibrational energy of sound-absorbing member) of sound-absorbing member, because noise energy is consumed by sound-absorbing member, can arrive the purpose of noise reduction noise abatement.Support unit is that support unit is connected with sound-absorbing member, sound-absorbing member can be raised to the position relative with noise source for the assembly that supports sound-absorbing member, guarantees the sound-absorbing effect of sound-absorbing member.
In the wind power generating set noise reduction system provided by the invention, comprise that for the sound-absorbing monomer that absorbs noise, the sound-absorbing monomer can absorb the noise that noise source sends by its structural design, thereby reach the purpose of sound-deadening and noise-reducing.The present invention realizes that the purpose of noise reduction does not need original wind generating unit is carried out structure of modification, can avoid because wind generating unit is transformed, changes, stopped work and bring the problem of tremendous economic loss.And the present invention adopts main sound-absorbing monomer and side draught sound monomer that noise source is carried out the noise reduction process of enclosed, and its erasure effect is better.
The present invention also provides a kind of wind power generating set, this wind power generating set is equipped with above-mentioned wind power generating set noise reduction system, wind power generating set provided by the invention is owing to be equipped with above-mentioned noise reduction system, and the noise of its complete machine unit can be controlled in lower noise level.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technological scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is embodiments of the invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to the accompanying drawing that provides other accompanying drawing.
Fig. 1 is the structural representation of wind power generating set in an embodiment of the present invention;
Fig. 2 is the plan view of Fig. 1;
Fig. 3 is the structural representation of wind power generating set among the first embodiment of the present invention;
Fig. 4 is the structural representation of wind power generating set among the second embodiment of the present invention;
Fig. 5 is the structural representation of sound-absorbing monomer in an embodiment of the present invention;
The corresponding relation of component names and reference character is among Fig. 1 to Fig. 4:
Main sound-absorbing monomer a; Side draught sound monomer b; Wind generating unit c;
The corresponding relation of component names and reference character is among Fig. 5:
1T shaped steel; 2 sound barrier backboards; 3 support the fixing angle bar piece of using; 4A type pressing plate; 5 foamed aluminium boards; 6B type pressing plate; 7 clamping bolts; 8 corner junction steel plates; 9U type channel-section steel support; 10 bottom angle bar.
Embodiment
Core of the present invention is for providing a kind of wind power generating set noise reduction system and a kind of wind power generating set, this wind power generating set is equipped with this noise reduction system, in the present invention, this wind power generating set noise reduction system is provided with for the sound-absorbing monomer that absorbs the generator noise, by its structural design, can effectively reduce the noise of wind-driven generator.
In order to make those skilled in the art understand better technological scheme of the present invention, the present invention is described in further detail below in conjunction with the drawings and specific embodiments.
Please refer to Fig. 1 to Fig. 4, wherein, Fig. 1 is the structural representation of wind power generating set in an embodiment of the present invention; Fig. 2 is the plan view of Fig. 1; Fig. 3 is the structural representation of wind power generating set among the first embodiment of the present invention; Fig. 4 is the structural representation of wind power generating set among the second embodiment of the present invention.
The invention provides a kind of wind power generating set noise reduction system, be used for wind generating unit c is carried out noise reduction, wind generating unit c is a kind of device that wind energy can be converted to electric energy, is rotated by the wind-drive flabellum, flabellum is connected with generator, and drives the generator rotation.Because the wind generator device volume that provides in the prior art is larger, therefore because noise and aerodynamic noise that mechanical vibration cause are all larger.In order to carry out noise reduction to wind-driven generator, the present invention also provides the sound-absorbing monomer that is used for absorbing noise especially, and the sound-absorbing monomer comprises support unit and sound-absorbing member, and sound-absorbing member is arranged on the support unit, and support unit and wind generating unit c interval arrange; The sound-absorbing monomer comprises the main sound-absorbing monomer a relative with wind generating unit c and is arranged at the side draught sound monomer b of wind generating unit c both sides that main sound-absorbing monomer a is connected with side draught sound monomer b.
In the said structure design, the sound-absorbing monomer is the device that absorbs be used to carrying out noise, its sound-absorbing principle is by sound-absorbing member and noise producing resonance, because the noise energy that noise source (wind generating unit c) sent within the unit time is certain, if sound-absorbing member resonates under the effect of noise and vibration, noise energy (acoustic energy greatly will be had, also can think the energy of air vibration) be converted into the mechanical energy (vibrational energy of sound-absorbing member) of sound-absorbing member, because noise energy is consumed by sound-absorbing member, can arrive the purpose of noise reduction noise abatement.
Support unit is for the assembly that supports sound-absorbing member, for can be so that sound-absorbing member has better sound-absorbing effect, its mounting point is preferably the position relative with the noise source level, so require support unit to have higher structural strength, the first guarantees that the present invention has higher Safety performance, its two be guarantee height when the noise source setting higher be that support unit can provide reliable supporting effect for sound-absorbing member.Therefore, support unit can adopt steel frame construction, or other have the material than high structural strength, such as alloy material etc.
Wind power generating set noise reduction system provided by the invention, the sound-absorbing monomer can absorb the noise that noise source sends by its structural design, thereby reaches the purpose of sound-deadening and noise-reducing.The present invention realizes that the purpose of noise reduction does not need original wind generating unit c is carried out structure of modification, can avoid because wind generating unit c is transformed, changes, stops work and bring the problem of tremendous economic loss.And the present invention adopts main sound-absorbing monomer a and side draught sound monomer b that noise source is carried out the noise reduction process of enclosed, and its erasure effect is better.
Particularly, in a specific embodiment of the present invention, sound-absorbing member comprises main sound absorbing material, and main sound absorbing material is comprised of the resonance absorber that perforated plate or microperforated panel structure form.Employing has the main sound absorbing material that the sheet material of microcellular structure consists of, can be farthest so that whole sound-absorbing member produce resonance, thus improve the effect of its resonance acoustical absorption.
In the present invention, the sound-absorbing monomer comprises the independent acoustic(al)absorbent and/or the auxiliary sound absorbing material that are used for absorbing noise that arranges.
Based on above-mentioned, the sound absorbing material that consists of the sound-absorbing monomer is specifically limited:
1, acoustic(al)absorbent is that foamed ceramics, perlite acoustic(al)absorbent, foamed aluminium or compound perforated metal panel or employing sound-absorbing plate directly consist of.
2, acoustic(al)absorbent is the resonance absorber that forms of perforated plate or microperforated panel structure or is made of foamed ceramics, perlite acoustic(al)absorbent or foamed aluminium.
3, auxiliary sound absorbing material is for being made of lamination coating, foaming sound absorbing material, foamed ceramics, perlite sound absorbent and/or foamed aluminium material, and acoustic(al)absorbent and auxiliary sound absorbing material lamination arrange.
The present invention has following two different embodiments, wherein:
Mode of execution one
In a specific embodiment of the present invention, sound-absorbing member also comprises auxiliary sound absorbing material, and auxiliary sound absorbing material is made of foamed ceramics, perlite sound absorbent and/or foamed aluminium material, and main sound absorbing material mixes formation with auxiliary sound absorbing material;
Mode of execution two
In another embodiment of the present invention, sound-absorbing member also comprises auxiliary sound absorbing material, and auxiliary sound absorbing material is made of foamed ceramics, perlite sound absorbent and/or foamed aluminium material, and main sound absorbing material and auxiliary sound absorbing material lamination arrange.
Sound-absorbing member provided by the invention comprises main sound-absorbing monomer a and side draught sound monomer b, for so that have higher structural strength between sound-absorbing monomer and the side draught sound monomer b, main sound-absorbing monomer a is connected connected element with side draught sound monomer b and removably connects in the present embodiment.In said structure, middle main sound-absorbing monomer a is connected with side draught sound monomer b, so that sound-absorbing member consists of an integral body, it is higher than the split-type structural design to play structural strength, simultaneously, adopt again detachable link, not only be convenient to the transportation of sound-absorbing member, when being damaged, the sound-absorbing monomer of being convenient to damage carries out maintain and replace when one of them sound-absorbing member (main sound-absorbing monomer a or side draught sound monomer b).
Particularly, stating connected element is bolt assembly, has the suitable through hole that bolt passes or the connection wing plate with through-hole structure of being used between the support unit.
Certainly, two adjacent sound-absorbing monomers can also adopt the buckle assembly to connect.
The present invention also provides a kind of wind power generating set, comprises wind generating unit c.The below specifically limits the position relationship between sound-absorbing monomer and the wind-driven generator:
Wind generating unit c comprises the heat radiation venting gas appliance, and the height of main sound-absorbing monomer a is higher than 1.8 meters to 2 meters of heat radiation venting gas appliance, and the interval between the heat radiation venting gas appliance is at least 0.5 meter.
Based on above-described embodiment, the height of side draught sound monomer b is higher than 1.3 meters to 1.5 meters of heat radiation venting gas appliance, and the interval between the heat radiation venting gas appliance is at least 1 meter.
In above-mentioned two embodiments, the optimum structure between main sound-absorbing monomer a and the heat radiation venting gas appliance is: main sound-absorbing monomer a is higher than 1.5 meters of heat radiation venting gas appliance; Optimum structure between side draught sound monomer b and the heat radiation venting gas appliance is: side draught sound monomer b is higher than 1 meter of heat radiation venting gas appliance.
Wind power generating set provided by the invention is owing to be equipped with above-mentioned noise reduction system, and the noise of its complete machine unit can be controlled in lower noise level.
In order to reach the effect that attracts better noise reduction, the top of sound-absorbing monomer is bending structure, and its overbending direction is towards wind generating unit c.Those skilled in the art as can be known, the noise that noise source sends is to spread in the space centered by noise source, therefore, top with the sound-absorbing monomer in the present embodiment is that bending structure can be so that the sound-absorbing monomer forms a structure that the heat radiation venting gas appliance is surrounded, farthest reduce the leakage of noise, improved erasure effect of the present invention.
Particularly, the bending angle of bending structure is not less than 120 °, if bending angle is larger, the situation that will cause bending part to fracture, record through the inventor test of many times, when bending angle must bend the limit and is 120 °, not only erasure effect was significantly improved than straight plate structure, and structural strength that can also the bonding body support frame satisfies this bending requirement.
The below carries out more detailed explanation with a specific embodiment of the present invention to technique scheme.
Take certain wind-powered electricity generation unit as example, for the cooling system fan group that concentrate to distribute, consider economy and noise reduction efficacy, the sound barrier that the present invention adopts designed, designed carries out sound absorption to the exhaust sound of fan group to be processed, as shown in Figure 2, sound-absorbed barrier is installed on three that concentrate minute punka group.The present invention has guaranteed desirable sound insulation and noise reducing effect in that fan group aerodynamic quality is affected under the little prerequisite, owing to do not carry out completely encircle, the staff can also make things convenient for inspection and maintenance simultaneously.
Please refer to Fig. 5, Fig. 5 is the structural representation of sound-absorbing monomer in an embodiment of the present invention.
As shown in Figure 5, the sound-absorbed barrier main body forms and to comprise sound barrier backboard (2), sound absorption structure unit (foamed aluminium board 5), connects supporting element (T bar 1, corner junction steel plate 8, U-shaped channel-section steel support 9), each unit block is fixing with plate (A type pressing plate 4, Type B pressing plate 6) and fastening piece (support fixing with angle bar piece 3, clamping bolt 7, bottom with angle bar 10) etc.
In this embodiment, the 1.5mm Plate Steel that sound barrier backboard (2) adopts, the sound absorption structure unit is foamed aluminium board, connect T bar support (1) and u-shaped channel-section steel support (9) that supporting element adopts, unit block is fixing have been comprised fixed foam aluminium pressing plate (4), has supported and use angle bar piece (3) etc. with plate, and fastening piece then is the M12 bolt combination (7) of 8.8 grades of precision.The below describes the concrete connection structure of sound barrier among this embodiment.
Between the sound barrier and with the concrete linkage structure on basis, as shown in Figure 5, adopt T bar (1) and clamping bolt (7) to be connected and fixed between the backboard of two sound barriers (2), the bottom adopts angle bar (10) to be fixed into integral body with sound barrier backboard (2) and T bar (1), can process according to actual conditions with the mode that the basis is fixing, a kind of is by stone bolt sound barrier main body and concrete pedestal to be fixed, if base foundation is metal material, then the mode except similar front adopts the bolt fastener combination with sound barrier main body and basic the fixing, and also can adopt the mode of welding that bottom angle bar (10) and basis are fixed.When being installed on higher regional of long-term wind speed, also need do accordingly leg-of-mutton support in order to support sound barrier main body (as shown in Figure 4), to strengthen whole wind load resistance ability in sound barrier backboard back.Fixing equally as shown in Figure 5 of front foamed aluminium board is at the web welding angle bar piece (3) of T bar (1), the upper welded nut of angle bar piece (3).The drift angle of foamed aluminium board (5) is carried out grinding, perhaps in open semicircle hole, edge, and adopt special iron plate pressing plate (4), the drift angle of foamed aluminium board is fixed at the drift angle place of four foamed aluminium boards with pressing plate as shown in Figure 1, carry out fasteningly with the nut on bolt and the aforesaid angle bar piece (3), realize thus the fixation problem of foamed aluminium board.The end of side sound barrier A and sound barrier B adopts U-shaped channel-section steel support (9) that foamed aluminium board (5) is connected by fastening piece with sound barrier backboard (2), and the U-shaped channel-section steel of support is connected with reference to aforesaid T bar and basic Placement with the basis.
The above finished the sound barrier main body assembling and with the description of basic means of fixation, need describe the sound barrier in front and the Placement of left and right sides sound barrier in addition at this.Take in the left side as example, as shown in Figure 6, the corner junction steel plate (8) of selecting L-type is connected with left side sound barrier backboard the sound barrier backboard in front by aforementioned similar fastening means, front sound barrier backboard and L-type corner junction steel plate (8) and U-shaped channel-section steel (9) are fixed by bolt combination, the foamed aluminium board of front sound barrier and the mode of composition of backboards are also with aforementioned similar, hole in U-shaped channel-section steel (9) opposite side relevant position, welded nut, front adopt Type B pressing plate (6) and bolt that foamed aluminium board is fixed.Then in centre boring, two of corner foamed aluminium boards can intersect vertically the foamed aluminium board of side thus, packing sealing on this intersection, thereby the closure of realization cavity.
More than a kind of wind power generating set provided by the present invention is described in detail.Used specific case herein principle of the present invention and mode of execution are set forth, above embodiment's explanation just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (10)
1. a wind power generating set noise reduction system is used for noise reduction is carried out in the exhaust of wind generating unit (c), it is characterized in that,
Comprise that described sound-absorbing monomer comprises support unit and sound-absorbing member for the sound-absorbing monomer that absorbs noise, described sound-absorbing member is arranged on the described support unit, and described support unit and described wind generating unit (c) interval arrange;
Described sound-absorbing monomer comprises the main sound-absorbing monomer (a) relative with described wind generating unit (c) and is arranged at the side draught sound monomer (b) of described wind generating unit (c) both sides that described main sound-absorbing monomer (a) is connected with described side draught sound monomer (b).
2. wind power generating set noise reduction system according to claim 1 is characterized in that, described sound-absorbing monomer comprises the independent acoustic(al)absorbent and/or the auxiliary sound absorbing material that are used for absorbing noise that arranges.
3. require described wind power generating set noise reduction system according to right 2, it is characterized in that, described acoustic(al)absorbent is that foamed ceramics, perlite acoustic(al)absorbent, foamed aluminium or compound perforated metal panel or employing sound-absorbing plate directly consist of.
4. require described wind power generating set noise reduction system according to right 2, it is characterized in that, described acoustic(al)absorbent is the resonance absorber that forms of perforated plate or microperforated panel structure or is made of foamed ceramics, perlite acoustic(al)absorbent or foamed aluminium.
5. require described wind power generating set noise reduction system according to right 2, it is characterized in that, described auxiliary sound absorbing material is for being made of lamination coating, foaming sound absorbing material, foamed ceramics, perlite sound absorbent and/or foamed aluminium material, and described acoustic(al)absorbent and described auxiliary sound absorbing material lamination arrange.
6. according to claim 1 to 5 each described wind power generating set noise reduction systems, it is characterized in that, described main sound-absorbing monomer (a) be connected side draught sound monomer (b) and removably connect by connected element.
7. wind power generating set according to claim 1 is characterized in that, the top of described sound-absorbing monomer is relative with its underpart to be bent, and its overbending direction is towards described wind generating unit (c), and described sound-absorbing monomer top is straight, bending or arcuate structure.
8. wind power generating set according to claim 7 is characterized in that, the bending angle of described bending structure is not less than 120 °.
9. a wind power generating set comprises wind generating unit (c), it is characterized in that,
Also comprise such as each described wind power generating set noise reduction system of claim 1 to 8;
Described wind generating unit (c) comprises the heat radiation venting gas appliance, and the height of described main sound-absorbing monomer (a) is higher than 1.8 meters to 2 meters of described heat radiation venting gas appliance, and the interval between the described heat radiation venting gas appliance is at least 0.5 meter.
10. wind power generating set according to claim 9 is characterized in that, the height of described side draught sound monomer (b) is higher than 1.3 meters to 1.5 meters of described heat radiation venting gas appliance, and the interval between the described heat radiation venting gas appliance is at least 1 meter.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210410091.7A CN102913398B (en) | 2012-10-24 | 2012-10-24 | Wind generating set |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210410091.7A CN102913398B (en) | 2012-10-24 | 2012-10-24 | Wind generating set |
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| CN102913398A true CN102913398A (en) | 2013-02-06 |
| CN102913398B CN102913398B (en) | 2015-04-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108386316A (en) * | 2018-02-27 | 2018-08-10 | 新疆金风科技股份有限公司 | Wind power generating set noise reduction system and method, control device and its storage medium |
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| JPH0913309A (en) * | 1995-06-28 | 1997-01-14 | Sakai Heavy Ind Ltd | Noise-insulating device of rolling impactor |
| CN2573688Y (en) * | 2002-10-15 | 2003-09-17 | 刘晓晴 | Noise lowering device for automobile |
| EP2273110A2 (en) * | 2009-06-30 | 2011-01-12 | Renovables Y Especiales, S.L. | Passive fire protection system for wind turbines |
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| JPS635178A (en) * | 1986-06-26 | 1988-01-11 | Yamaha Motor Co Ltd | Generator by wind power |
| CN2048252U (en) * | 1988-07-20 | 1989-11-22 | 王常春 | Large-sized and medium-sized motor of low noise |
| JPH0913309A (en) * | 1995-06-28 | 1997-01-14 | Sakai Heavy Ind Ltd | Noise-insulating device of rolling impactor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108386316A (en) * | 2018-02-27 | 2018-08-10 | 新疆金风科技股份有限公司 | Wind power generating set noise reduction system and method, control device and its storage medium |
| CN108386316B (en) * | 2018-02-27 | 2019-11-22 | 新疆金风科技股份有限公司 | Wind power generating set noise reduction system and method, control device and its storage medium |
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| CN102913398B (en) | 2015-04-01 |
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