CN104895024A - Combined protective sound lock device of pumped storage power station and manufacturing method of sound insulation wall - Google Patents
Combined protective sound lock device of pumped storage power station and manufacturing method of sound insulation wall Download PDFInfo
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- CN104895024A CN104895024A CN201510321939.2A CN201510321939A CN104895024A CN 104895024 A CN104895024 A CN 104895024A CN 201510321939 A CN201510321939 A CN 201510321939A CN 104895024 A CN104895024 A CN 104895024A
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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
- Y02E10/20—Hydro energy
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The invention discloses a combined protective sound lock device of a pumped storage power station and a manufacturing method of a sound insulation wall. The device comprises a sealed sound insulation body defined by a sound lock fixed section, a sound lock assembling section, a sound lock passing door and a top sound insulation wall and is also provided with a ventilation and sound silencing system, wherein the side wall is formed by fixing a combined sound silencing sheet on the inner side of a stainless steel plate, and comprises a micro-punch sound absorbing plate close to the inner layer and at least two low-frequency damping sound insulation layers; the low-frequency damping sound insulation layers comprise wavelike supporting network sheets in the centers; sound insulation cotton of equal thickness is arranged on the outer sides of the supporting network sheets; flat rubber powder polyphenyl particle layers of equal thickness are arranged on the inner sides of the supporting network sheets, and the rest ones are rubber particle adhesive layers.
Description
Technical field
The invention belongs to pumped storage power plant Noise cancellation technology field, be specifically related to a kind of modular guard sound lock device pumped storage power plant being carried out to local flow improvement formation.
Background technology
Precious spring pumped storage power plant is equipped with 4 300MW reversible pumped storage machines, has generating, turbine condenser mode, draws water, draw water phase modulation and emergency duty, black starting-up function, unit rated head 510m, rated speed 500rpm.Pump turbine tears structure open in being, water wheel chamber is open type, water wheel chamber noise source is mainly unit acts on generation in running noise between runner and current, due to pumped storage power plant high water head, high-revolving feature, so the noise that during unit operation, water wheel chamber produces is very large, and ceiling, metope etc. are smooth hard reflecting surface, the reverberation sound superposition that noise produces in water wheel chamber.
Water wheel chamber, between totally 4, chooses a monitoring point: 4# water wheel chamber equipment 1 meter of, and equipment runs: 108 dB(A); Background sound: about 65 dB(A).Can calculate according to noise source principle of stacking, if 4 units work simultaneously, its opening part noise figure must more than 100dB (A), add in factory building to be smooth steel concrete metope, metope sound absorption coefficient is very low again, and this causes again reverberation sound in factory building to increase, and noise figure in factory building can be made to raise further, well beyond national labour hygiene standard 85dB (A), have a strong impact on duty, the service work of field personnel and damage healthy.
Water wheel chamber noise shows as mechanical noise and aerodynamic noise, in obvious medium and low frequency characteristic.Sound lock is installed with isolated waterwheel room noise in water wheel chamber exit, and the interchannel of sound lock forms absorbent treatment.By installing sound lock, the noise that during unit operation, water wheel chamber produces can effectively be reduced, and is beneficial to the healthy of the staff being engaged in on-the-spot on duty, maintenance.
Summary of the invention
The present invention is directed to the current storage station standby noise of installing large, the problem of sound insulation value difference, a kind of noise that effectively can reduce water wheel chamber and produce is provided, be beneficial to the healthy modular guard sound lock device of the staff being engaged in on-the-spot on duty, maintenance.
For achieving the above object, the present invention adopts following technical scheme: provide a kind of pumped storage power plant modular guard sound lock device, comprise sound lock canned paragraph, sound lock assembling section, sound lock pass through door and top layer sound-proof wall surrounds closed sound insulation body, the sound lock canned paragraph being positioned at two ends is separately fixed on passage body of wall, and sound lock assembling section and sound lock canned paragraph carry out sound insulation assembling; Also be provided with ventilating noise reduction system; The pass through sidewall of door of described sound lock canned paragraph, sound lock assembling section and sound lock is inside corrosion resistant plate, be fixed with combination bloop, this combination bloop comprises the micropunch abatvoix of inner layer and at least two-layer low frequency damping soundproof course, and low frequency damping soundproof course to be positioned at inside corrosion resistant plate and to wrap up stainless steel keel; Described low frequency damping soundproof course is rectangle or sliceable male-female structure, comprise the ripple being positioned at center and support mesh sheet, at the Sound-proof material of the arranged outside equal thickness of support mesh sheet, supporting the flat glue powder polyphenyl particle layer being provided with equal thickness inside mesh sheet, all the other are rubber grain adhesive layer.
The ripple that described ripple supports mesh sheet is the regular ripple that wavelength is equal, and described at least two-layer low frequency damping soundproof course, the wavelength of regular ripple supporting network sheet from inside to outside increases gradually.
The ripple that described ripple supports mesh sheet is the unequal irregular ripple of wavelength, and described at least two-layer low frequency damping soundproof course, the mean wavelength of irregular ripple supporting network sheet from inside to outside increases gradually.
Adopt bridging arrangement between neighboring low damping soundproof course, be pasted together by the support mesh sheet in neighboring low damping soundproof course, the Sound-proof material peace glue powder polyphenyl particle layer overlap joint that overlaps respectively.
Described sound lock assembling section or the sound lock door that passes through is provided with sound insulation observation port.The tuyere position of ventilating noise reduction system is provided with sound absorbing louver.Described combination bloop is fixed with at the channel side wall of ventilating noise reduction system.
Described sound lock canned paragraph, sound lock assembling section and sound lock pass through door adjacent between docking adopt double step coupling sealing docking.
Described Sound-proof material selects environmental protection polyester fiber acoustical cotton.Described micropunch abatvoix adopts micropunch aluminium matter acoustical board, and the perforated percentage of micropunch aluminium matter acoustical board and aperture, design by the third-octave of the centre frequency of 500Hz.
A kind of pumped storage power plant sound lock device sound-proof wall manufacture method,
First low frequency damping soundproof course is made: the Sound-proof material fixing equal thickness in the side, support mesh sheet surface of plane, again support mesh sheet is carried Sound-proof material to place together in mould, make support mesh sheet side upwards, in mould, add flat glue powder polyphenyl particle and add adhesive and stir and pave, solidify hardening before, corrugated processing is carried out to the assembly of supporting network and Sound-proof material peace glue powder polyphenyl particle layer, makes its formation rule or irregular corrugated; Assembly two sides all adopt rubber grain flat surface, its process is: be positioned in mould by undulatory assembly, add the rubber grain containing adhesive and flat surface, after gelling is solid, another side is put into mould upward again, add the rubber grain containing adhesive and flat surface, form rectangle or the sliceable flat sheet of convex-concave;
The making of combination bloop: combination bloop is inner side micropunch abatvoix being pasted onto at least two-layer low frequency damping soundproof course; Adopt bridging arrangement between neighboring low damping soundproof course, that is: the overlap joint that the support mesh sheet in neighboring low damping soundproof course, Sound-proof material peace glue powder polyphenyl particle layer overlapped respectively is pasted together;
Combination bloop is fixed on the inner side of corrosion resistant plate; Together with being pasted and fixed on corrosion resistant plate by outer field low frequency damping soundproof course; Be provided with the keel for strengthening structure inside corrosion resistant plate, all or part low frequency damping soundproof course is wrapped in stainless steel keel surface.
The invention has the beneficial effects as follows: 1. sound lock adopts two soundproof door structure, be equipped with passage sound absorption process simultaneously, reach and reduce sound source reverberation sound and its leakage sound double goal isolated.Low frequency damping soundproof course is pasted in the inner side of corrosion resistant plate, arranges sound lock increasable sound insulation factor design formulas as follows:
N=10lg（1 / s[cos4/2πd2 +(1-α)/A]）
In formula: N: sound insulation factor, A: the total absorption of sound lock inner surface, S: door leaf area, α: sound lock inner surface average sound absorption coefficient, the centre distance of d: two.
As calculated, after this sound lock process, the noise figure in water wheel chamber exit will be reduced more than 30dB (A) by this sound lock, and consider transaudient cannot the overcoming of vibration, its total noise reduction can ensure at more than 25dB (A).
2. sound lock adopts two soundproof door and inner sound absorption Spatial Coupling, flexible design, and combined type design and installation, be convenient to dismounting, meet needs during overhaul.By installing sound lock, when equipment runs, on-site noise reduces, and meets labour hygiene standard, is conducive to being engaged in the healthy of the staff of on-the-spot on duty, maintenance.
3. sound insulation observation port is set, is convenient to internal unit service behavior between facilities for observation.Adopt sound insulation film in double-layer glass centre to paste, layer glass thickness will meet spectral characteristics of noise, and forms the angle of micro-angle in the middle of layer glass, prevents coupling effect from producing, sound insulation property is reached maximum efficiency.
Accompanying drawing explanation
Fig. 1 is sound lock floor map of the present invention;
Fig. 2 is sound lock elevation of the present invention;
Fig. 3 is sound lock layout plan of the present invention;
Fig. 4 is the sectional schematic diagram of sound absorption passage in the middle of sound lock of the present invention;
Fig. 5 is the cross-sectional view of sound lock sound-proof wall of the present invention;
Fig. 6 is the A portion structure for amplifying schematic diagram of Fig. 5;
Fig. 7 is the B portion structure for amplifying schematic diagram of Fig. 5;
Fig. 8 is that combination sound-proof wall or sound insulation are passed through door double step schematic diagram;
Fig. 9 and Figure 10 is air intake and the air-out passage installation sound insulation system schematic diagram of sound lock respectively.
In figure, label 1 is combination sound lock, and 2 is maintenance track, and 3 is pumped storage machine, and 4 is body of wall.101 is sound lock canned paragraph, 102 is sound absorbing louver, 103 is sound insulation observation port, 104 to pass through door for sound lock, 105 is sound lock assembling section, 106 is blower fan, 107 is air-out noise reduction road, 108 is air intake noise reduction road, 109 is top layer sound-proof wall, 110 is side sound-proof wall, 111 is combination bloop, 112 is corrosion resistant plate, 113 is stainless steel keel, 114 is outer low frequency damping soundproof course, 115 is middle level low frequency damping soundproof course, 116 is internal layer low frequency damping soundproof course, 117 is micropunch abatvoix, 118 for supporting mesh sheet, 119 is Sound-proof material, 120 is flat glue powder polyphenyl particle layer, 121 is rubber grain.
detailed description of the invention:
Below in conjunction with accompanying drawing, the invention will be further described.
Embodiment 1: pumped storage power plant modular guard sound lock device, see Fig. 1-Fig. 3, is horizontally installed between water wheel chamber passage body of wall.The sound lock canned paragraph 101 being positioned at two outer ends is separately fixed on passage body of wall, sound lock canned paragraph 101, sound lock assembling section 105 and sound lock pass through door 104 adjacent between docking adopt double step coupling sealing docking, as Fig. 8.According to water wheel chamber exit wall size, sound lock designs frontal width (6300mm), highly (2500mm), absorb sound passage length (1100mm).Sound lock adopts two soundproof door and inner sound absorption Spatial Coupling, two soundproof door span 1100mm.Respectively establish the wide sound insulation of a place 1.5m to pass through door on the right side of soundproof door, be convenient to personnel and equipment turnover, adopt double step to insulate against sound between door and doorframe, and weather strip is installed, both allowed the easy switch of door and do not affect sound insulation property.Door is relatively heavier, has therefore also done to reinforce the connection on door-hinge, can ensure sound insulation property, and the door-hinge that do not wear and tear.Sound lock upper design has sound insulation observation port 103, is convenient to internal unit service behavior between facilities for observation.
As Fig. 9 and Figure 10, in order to ensure personnel when water wheel chamber overhauls, ventilation needs, and sound lock arranges air intake and each one of air outlet silencing device (sound absorbing louver 102), and inside sound lock, install each one of the axial flow blower strengthening ventilation.Sound lock is designed to combined type, and detachably, to meet needs during overhaul.During unit maintenance, the dust that water wheel chamber internal unit polishing etc. causes is convenient to discharge, and utilizes water wheel chamber inner ventilation.
The pass through sidewall of door 104 of sound lock canned paragraph 101, sound lock assembling section 105 and sound lock is inside corrosion resistant plate 112, be fixed with combination bloop 111, or is fixed with combination bloop 111 at the channel side wall of ventilating noise reduction system.
See Fig. 4 and Fig. 5, combination bloop 111 comprises micropunch abatvoix 117 and three layers of low frequency damping soundproof course of inner layer, is respectively outer low frequency damping soundproof course 114, middle level low frequency damping soundproof course 115 and internal layer low frequency damping soundproof course 116.Outside sound barrier selects 304 corrosion resistant plates, and inner side pastes three layers of low frequency damping soundproof course successively.Three layers of low frequency damping soundproof course to be positioned at inside corrosion resistant plate 112 and to wrap up stainless steel keel 113.
See Fig. 6, low frequency damping soundproof course is rectangle or sliceable male-female structure, comprise the ripple being positioned at center and support mesh sheet 118, at the Sound-proof material 119 of the arranged outside equal thickness of support mesh sheet 118, supporting the flat glue powder polyphenyl particle layer 120 being provided with equal thickness inside mesh sheet 118, all the other are rubber grain 121 adhesive layer.Sound-proof material 119 selects environmental protection polyester fiber acoustical cotton, and micropunch abatvoix 117 adopts micropunch aluminium matter acoustical board, and the perforated percentage of micropunch aluminium matter acoustical board and aperture are designed by the third-octave of the centre frequency of 500Hz.
Wherein, the ripple that ripple supports mesh sheet 118 is the regular ripple that wavelength is equal, and described at least two-layer low frequency damping soundproof course, the wavelength of regular ripple supporting network sheet 118 from inside to outside increases gradually.Or the ripple that ripple supports mesh sheet 118 is the unequal irregular ripple of wavelength, and described at least two-layer low frequency damping soundproof course, the mean wavelength of irregular ripple supporting network sheet 118 from inside to outside increases gradually.
See Fig. 7, between neighboring low damping soundproof course, adopt bridging arrangement, by the support mesh sheet 118 in neighboring low damping soundproof course, the peaceful glue powder polyphenyl particle layer 120 of Sound-proof material 119 respectively coincidence overlap joint be pasted together.
Sound insulation observation port 103 is set, is convenient to internal unit service behavior between facilities for observation.Adopt sound insulation film in double-layer glass centre to paste, layer glass thickness will meet spectral characteristics of noise, and forms the angle of micro-angle in the middle of layer glass, prevents coupling effect from producing, sound insulation property is reached maximum efficiency.
Embodiment 2: for the sound-proof wall manufacture method of sound lock device described in embodiment 1.
First low frequency damping soundproof course is made: the Sound-proof material 119 fixing equal thickness in the surperficial side of support mesh sheet 118 of plane, again support mesh sheet 118 is carried Sound-proof material 119 to place together in mould, make support mesh sheet 118 side upwards, in mould, add flat glue powder polyphenyl particle and add adhesive and stir and pave, solidify hardening before, corrugated processing is carried out to the assembly of supporting network and Sound-proof material 119 peaceful glue powder polyphenyl particle layer 120, makes its formation rule or irregular corrugated.
Assembly two sides all adopt rubber grain 121 flat surface, its process is: be positioned in mould by undulatory assembly, add the rubber grain 121 containing adhesive and flat surface, after gelling is solid, another side is put into mould upward again, add rubber grain 121 containing adhesive and flat surface, form rectangle or the sliceable flat sheet of convex-concave.
The making of combination bloop 111: combination bloop 111 is inner sides micropunch abatvoix 117 being pasted onto at least two-layer low frequency damping soundproof course; Adopt bridging arrangement between neighboring low damping soundproof course, that is: by the support mesh sheet 118 in neighboring low damping soundproof course, the peaceful glue powder polyphenyl particle layer 120 of Sound-proof material 119 respectively coincidence overlap joint be pasted together.
Combination bloop 111 is fixed on the inner side of corrosion resistant plate 112; Together with being pasted and fixed on corrosion resistant plate 112 by outer field low frequency damping soundproof course; Be provided with the keel for strengthening structure inside corrosion resistant plate 112, all or part low frequency damping soundproof course is wrapped in stainless steel keel 113 surface.
Claims (10)
1. a pumped storage power plant modular guard sound lock device, it is characterized in that, comprise sound lock canned paragraph, sound lock assembling section, sound lock pass through door and top layer sound-proof wall surrounds closed sound insulation body, the sound lock canned paragraph being positioned at two ends is separately fixed on passage body of wall, and sound lock assembling section and sound lock canned paragraph carry out sound insulation assembling; Also be provided with ventilating noise reduction system; The pass through sidewall of door of described sound lock canned paragraph, sound lock assembling section and sound lock is inside corrosion resistant plate, be fixed with combination bloop, this combination bloop comprises the micropunch abatvoix of inner layer and at least two-layer low frequency damping soundproof course, and low frequency damping soundproof course to be positioned at inside corrosion resistant plate and to wrap up stainless steel keel; Described low frequency damping soundproof course is rectangle or sliceable male-female structure, comprise the ripple being positioned at center and support mesh sheet, at the Sound-proof material of the arranged outside equal thickness of support mesh sheet, supporting the flat glue powder polyphenyl particle layer being provided with equal thickness inside mesh sheet, all the other are rubber grain adhesive layer.
2. pumped storage power plant modular guard sound lock device according to claim 1, it is characterized in that, the ripple that described ripple supports mesh sheet is the regular ripple that wavelength is equal, and described at least two-layer low frequency damping soundproof course, the wavelength of regular ripple supporting network sheet from inside to outside increases gradually.
3. pumped storage power plant modular guard sound lock device according to claim 1, it is characterized in that, the ripple that described ripple supports mesh sheet is the unequal irregular ripple of wavelength, described at least two-layer low frequency damping soundproof course, the mean wavelength of irregular ripple supporting network sheet from inside to outside increases gradually.
4. pumped storage power plant modular guard sound lock device according to claim 1, it is characterized in that, adopt bridging arrangement between neighboring low damping soundproof course, that is: the overlap joint that the support mesh sheet in neighboring low damping soundproof course, Sound-proof material peace glue powder polyphenyl particle layer overlapped respectively is pasted together.
5. pumped storage power plant modular guard sound lock device according to claim 1, is characterized in that, described sound lock assembling section or the sound lock door that passes through is provided with sound insulation observation port.
6. pumped storage power plant modular guard sound lock device according to claim 1, is characterized in that, the tuyere position of ventilating noise reduction system is provided with sound absorbing louver; Described combination bloop is fixed with at the channel side wall of ventilating noise reduction system.
7. pumped storage power plant modular guard sound lock device according to claim 1, is characterized in that, described sound lock canned paragraph, sound lock assembling section and sound lock pass through door adjacent between docking adopt double step coupling sealing docking.
8. pumped storage power plant modular guard sound lock device according to claim 1, it is characterized in that, described Sound-proof material selects environmental protection polyester fiber acoustical cotton.
9. pumped storage power plant modular guard sound lock device according to claim 1, it is characterized in that, described micropunch abatvoix adopts micropunch aluminium matter acoustical board, and the perforated percentage of micropunch aluminium matter acoustical board and aperture, design by the third-octave of the centre frequency of 500Hz.
10. a pumped storage power plant sound lock device sound-proof wall manufacture method, is characterized in that,
First low frequency damping soundproof course is made: the Sound-proof material fixing equal thickness in the side, support mesh sheet surface of plane, again support mesh sheet is carried Sound-proof material to place together in mould, make support mesh sheet side upwards, in mould, add flat glue powder polyphenyl particle and add adhesive and stir and pave, solidify hardening before, corrugated processing is carried out to the assembly of supporting network and Sound-proof material peace glue powder polyphenyl particle layer, makes its formation rule or irregular corrugated; Assembly two sides all adopt rubber grain flat surface, its process is: be positioned in mould by undulatory assembly, add the rubber grain containing adhesive and flat surface, after gelling is solid, another side is put into mould upward again, add the rubber grain containing adhesive and flat surface, form rectangle or the sliceable flat sheet of convex-concave;
The making of combination bloop: combination bloop is inner side micropunch abatvoix being pasted onto at least two-layer low frequency damping soundproof course; Adopt bridging arrangement between neighboring low damping soundproof course, that is: the overlap joint that the support mesh sheet in neighboring low damping soundproof course, Sound-proof material peace glue powder polyphenyl particle layer overlapped respectively is pasted together;
Combination bloop is fixed on the inner side of corrosion resistant plate; Together with being pasted and fixed on corrosion resistant plate by outer field low frequency damping soundproof course; Be provided with the keel for strengthening structure inside corrosion resistant plate, all or part low frequency damping soundproof course is wrapped in stainless steel keel surface.
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| CN201510321939.2A CN104895024B (en) | 2015-06-12 | 2015-06-12 | Hydroenergy storage station modular guard sound lock device and sound-proof wall manufacture method |
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| CN201510321939.2A CN104895024B (en) | 2015-06-12 | 2015-06-12 | Hydroenergy storage station modular guard sound lock device and sound-proof wall manufacture method |
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| CN104895024A true CN104895024A (en) | 2015-09-09 |
| CN104895024B CN104895024B (en) | 2016-11-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105804025A (en) * | 2016-03-28 | 2016-07-27 | 钱月珍 | Noise reducing system of hydropower station |
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| CN204780814U (en) * | 2015-06-12 | 2015-11-18 | 国家电网公司 | Water -storage power station combination formula protection sound lock device |
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| CN2780871Y (en) * | 2005-04-08 | 2006-05-17 | 山西天华轻钢模网建筑有限公司 | Partition plate with light steel building module net |
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| CN104895024B (en) | 2016-11-16 |
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