CN103821725B - A kind of Blower in WTP noise collection system and device - Google Patents
A kind of Blower in WTP noise collection system and device Download PDFInfo
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- CN103821725B CN103821725B CN201410074479.3A CN201410074479A CN103821725B CN 103821725 B CN103821725 B CN 103821725B CN 201410074479 A CN201410074479 A CN 201410074479A CN 103821725 B CN103821725 B CN 103821725B
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Abstract
The invention discloses a kind of Blower in WTP noise collection system and device.By the district that quiets down, lead sound area and point sound area three part forms.Quieting down, district includes refecting cover, the part such as the cover that quiets down, contraction section and the remittance sound section of multiple stage blower fan collective noise used time; Lead sound area to be made up of straight line sound guiding pipe and elbow; Point sound area includes a point acoustic shell, point sound pipe, point acoustic aperture etc.; In addition, whole collecting system skin is provided with noise reduction layer.Can fully collect and derive blower noise, as far as possible reducing noise energy loss, be conducive to making full use of noise high energy, there are wide development space and market prospects.
Description
Technical field
The present invention relates to a kind of Blower in WTP noise collection system and device, belong to new energy and power-saving technology technical field.
Background technique
Noise is the sound that sounding body sends when doing random, and sound is caused by object vibration, carries out propagating usually said noise pollution refer to that people is what cause with the form of ripple in certain medium (as solid, liquid, gas).From physiological point, every interference people have a rest, the sound of study and work, and namely unwanted sound, is referred to as noise.The noise of the various equipment generations of man-made noise factory.The sound level of man-made noise is general higher, brings greater impact workman and surrounding resident.
Air blast machine room is the main manufacturing shop of sewage blast aeration technique in municipal sewage plant and destructor plant.At small sewage treatment plant, the air quantity that sewage aeration process needs is less, and acoustic pressure is higher, therefore, usually arranges Roots blower air blast in air blast machine room, the oxygen required for the degraded of conveying saprobia.Noise when Roots blower runs is quite high, and unit import noise level is at 96-117dB, and outlet noise level is at 105-125dB, and when multiple stage Roots blower runs simultaneously, the superposition OA overall noise level in air blast machine room is usually at about 115dB.When fan noise A sound level reaches 80dB, common talk is not heard; When reaching 90dB, must talk loudly; When reaching 100-110dB, do not hear even if shout yet.The administering method of blower noise mainly adopts silencing apparatus and sound insulation, vibration isolation technique, namely fixes a silencer, sets up acoustic hood, vibration isolation and pipeline wrapping etc.
Noise is a kind of energy contamination, and such as noise reaches the jet airplane of 160dB, and its sound output is about 10000W; Noise reaches the large blower of 140dB, and its sound output is about 100W.Noise can make that people has a sleepless night, blood pressure raises, mood is irritated and hearing damage, but noise also can be used for as mankind's service.Utilize the principle that noise resonates, noise mosquito repellent, noise weeding, noise generating, noise refrigeration, noise dedusting etc. can be realized.
Such as, Chinese patent CN202652105U, this utility model patent discloses a kind of device reducing ambient noise and also utilize noise to generate electricity simultaneously.This device mainly comprises the assemblies such as Noise Acquisition chamber, helmholtz resonance chamber, piezoelectric film, sound absorption chamber, Conversion of Energy memory circuit plate.Barrel formula acquisition cavity gathers the noise in environment, helmholtz resonance chamber reduces noise while reinforcement noise and vibration amplitude, strengthened noise and vibration ripple acts on 30 μm of thick poly meta fluoroethylene piezoelectric films, and the charge storage that piezoelectric film produces is at the memory circuit plate with Faradic pseudo-capacitor.The noise waves of transmission and diffraction absorbs by the sound-absorbing material of sound absorption inside, chamber when arriving sound absorption chamber by two cover piezoelectric films.According to the demand of noise reduction, generating, this device can have multiple combination mode, device absorption of noise frequency range 31.5Hz-20000Hz, not only be applicable to the places such as construction site, engineering site, KTV, bar, Along Railway, sound insulating house can be installed on simultaneously flexibly, acoustic hood is inner and acoustic screen is surperficial.
Chinese patent 201310149005, discloses a kind of noise utilized device, and it comprises shell and is located at the protective housing on shell, is provided with eardrum acoustic receiver, piezoelectric ceramic plate, rectifying device and increasing apparatus in described shell; Described eardrum acoustic receiver is fixed on the shell of protective housing position, and described piezoelectric ceramic plate and eardrum acoustic receiver are connected and fixed; Described rectifying device is connected between piezoelectric ceramic plate and increasing apparatus.By the way, this invention can absorption of noise, beautifies the environment, utilizes noise to send electric energy, turn harm into good, and cheap.
Wastewater disinfection is the water treatment procedure of the pathogenic microorganism of kill harmful in domestic sewage and some industrial wastewater treatment system.A large amount of bacterium is not only there is in domestic sewage and some industrial wastewater, and normal containing virus, amoeba sporangiocyst etc.They can't be exterminated by general wastewater treatment process.In urban sewage treatment system, ordinary biofilter can only remove Escherichia coli 80-90%, and activated sludge process also can only remove 90-95%.In order to prevent the spread of disease, sewage (waste water) is generally after machinery, biochemical secondary treatment, sometimes still disinfection is needed, conventional disinfection treatment method is mainly dosing sterilization, mainly contain: chlorination, By Ozone is sterilized, level sodium-hypochlorite process, Chlorine Dioxide Method sterilization etc.At present, the collaborative use of ultraviolet-sterilization, electric-field sterilizing, ultrasonic sterilization and all kinds of method for disinfection is developed in research successively.
So, Blower in WTP (>110dB) can be collected and utilize? how blower noise is collected, derive and effectively utilize, noise actively can be utilized again at noise control simultaneously, there are extraordinary practical significance and market prospects.But, at present and have no relevant and carry out the equipment that quiets down and relevant match equipment for Blower in WTP noise.
Summary of the invention
The object of this invention is to provide a kind of Blower in WTP noise collection system and device.
The present invention is mainly for the blower high-decibel noise in sewage disposal process, it is arranged near contact chamber by Blower in WTP room, what utilize high-decibel (>110dB) blower noise self found in experiment can sterilization idiocratic, blower noise is imported contact chamber by the device that quiets down, and cooperation medicine reaches the Synergistic biocidal effect to sewage effluents.
Technological scheme: a kind of Blower in WTP noise collection system and device, include the district that quiets down, lead sound area and point sound area three part composition, wherein, the district that quiets down includes refecting cover 1, quiet down the part such as cover 2, contraction section 3; Lead sound area to be made up of straight line sound guiding pipe 4 and elbow 5; Point sound area includes point acoustic shell 6, point part such as sound pipe 7, point acoustic aperture 8; Remittance sound section 10 is provided with during multiple stage blower fan collective noise; Its each several part cover wall or tube wall are made by the metallic material of smooth finish surface, and thickness is 10 ~ 30mm; 9, noise reduction layer is wrapped up by the flexible material of the damping layer of 5 ~ 10mm and 20 ~ 50mm and forming, and is located at metal shell skin, mainly prevent a small amount of blower noise through.
The refecting cover of this device is circular arc (central angle a
1be 15 ~ 30 °), mainly fire back to reduce Noise Penalty by with the inverse noise of leading sound; Fan noise is mainly collected and is converged by the cover that quiets down, and contraction section is taper, angle a
2be 15 ~ 30 °, mainly the sound collected through the cover that quiets down converged within the specific limits and imports sound guiding pipe; Remittance sound section mainly meets multiple quiet down cover used time, and noise collects in same sound guiding pipe, collects entrance and concentrates on pipeline side, inclination a
4tilt 45 °, opposite side angle of inclination a
5it is 15 ~ 30 °, so that remittance noise is refracted as sound guiding pipe in the same way; Angle of bend a
3be 45 °, mainly reflect noise and reducing noise loss; The cover that quiets down is mainly and meets contact chamber sterilizing area comparatively greatly, is by the scattered device of sound guiding pipe by noise; Point sound pipe can according to actual contact chamber area design quantity, and noise imports in water by it from point acoustic shell, point sound pipe number >1 root/m
2; Point acoustic aperture to be submerged the pore that underwater portion opens at point sound pipe, and be the passage that noise enters water body, point acoustic aperture quantity is 9 ~ 15/root.Divide sound pipe can be disposed adjacent with chemical feed pipe, noise causes adjacent domain water body to shake after entering water, accelerates medicine and disperses and improve medicine bactericidal effect, add the certain sterilizing ability of high energy noise self, thus play the function of cooperative drug sterilization.
Beneficial effect: 1. apparatus of the present invention will quiet down district, lead sound area and point sound area three part is integrated, before noise sterilization utilizes, can fully collect and derive blower noise, as far as possible reducing noise energy loss, be conducive to making full use of noise high energy; 2. this device is while utilizing noise, is equally also to prevent and treat process to blower noise; 3. this device may be used for the collection of single blower noise, also can be used as monomer parallel collecting multiple stage blower noise; What 4. this device was offered by underwater part of submerging on sound guiding pipe leads acoustic aperture, noise is passed in contact chamber water, utilize noise cause when by leading acoustic aperture near water body vibrations reach the Blending Efficiency of Blending that contact chamber adds medicine, can drug dose be reduced, can secondary pollution be reduced; 5. utilize this device to coordinate medicine can play Synergistic biocidal effect to contact chamber water outlet, be the new technology that a kind of low-carbon environment-friendly, pollution control and resourceful utilization thereof combine, there are wide development space and market prospects.
Accompanying drawing explanation
Below in conjunction with embodiment, the present invention will be further described.Figure of description is several embodiments of the present invention.Fig. 1 is separate unit blower noise gathering-device, and Fig. 2 is multiple stage blower noise collecting system device, and Fig. 2 adds the remittance sound section of noise and finally jointly collected in leading sound pipe by each blower noise.In figure: 1 is refecting cover, 2 is the cover that quiets down, and 3 is contraction section, and 4 is straight line sound guiding pipe, and 5 is elbow, and 6 is a point acoustic shell, and 7 is a point sound pipe, and 8 is a point acoustic aperture, and 9 is noise reduction layer, and 10 is remittance sound section.A
1for refecting cover circular arc central angle, a
2for contraction section angle of taper, a
3for angle of bend, a
4take sound pipe angle as the leading factor, a
5for the inclination of opposite side.Its district that quiets down includes refecting cover 1, the part such as the cover 2 that quiets down, contraction section 3, remittance sound section 10 (Fig. 2); Lead sound area to be made up of straight line sound guiding pipe 4 and elbow 5; Point sound area includes point acoustic shell 6, point part such as sound pipe 7, point acoustic aperture 8.Its each several part cover wall or tube wall are made by the metallic material of smooth finish surface, and thickness is 10 ~ 30mm; 9, noise reduction layer is wrapped up by the flexible material of the damping layer of 5 ~ 10mm and 20 ~ 50mm and forming, and is located at metal shell skin, mainly prevent a small amount of blower noise through.
Embodiment
3 blower noise collecting system devices in Fig. 2 of the present invention are example.
Sewage treatment works's blower is for BK6008 type roots blower, and its technical parameter is: Q=15.2m
3/ min, P=0.06MPaN=22kw.Separate unit blower noise (~ 115dB), 3 blowers run simultaneously, and blower noise all collects in sound guiding pipe by remittance sound section, sound guiding pipe length 10 ~ 20m, contact chamber area 12m
2, point sound pipe number 12 (1/m
2).By the collection of this system and device, air blast machine room environment noise <70dB, enters point sound tube noise >105dB in contact chamber water body.This noise collection device is used for water outlet sterilizing treatment in contact chamber, the sterilizing rate >70% of independent noise.By synchronously declaring patent " a kind of method utilizing Blower in WTP noise cooperative drug to carry out water outlet sterilization ", coordinate common drug sterilization, its sterilizing rate >99.9%, when saving medication, water outlet meets urban wastewater treatment firm pollutant emission standard (GB18918-2002) primary standard A standard.In contact chamber, chemical feed pipe can be close to point sound pipe and arranges, like this by the concussion effect of noise at water body, increase germ killing drugs enter the dispersion degree after water body and and microorganism between contact probability, improve bactericidal effect.
The each several part cross section of device is circular, polygonal; Device each several part size carrys out specific design according to actual blower model, contact chamber area and both standoff distances, and device collects Noise Penalty <10%; Multiple cover that quiets down (2) used time are provided with remittance sound section (10), and the cover (2) that respectively quiets down is collected noise and collected in same sound guiding pipe (4); Collect entrance and concentrate on pipeline side, angle of inclination a
4it is 45 °; Opposite side angle of inclination a
5it is 15 ~ 30 °, so that remittance noise is refracted as sound guiding pipe in the same way; In the process utilizing the sterilization of blower cooperative drug, the chemical feed pipe of contact chamber and sound guiding pipe are arranged side by side, noise causes adjacent domain water body to shake after entering water, and noise automatic sterilization function simultaneously, medicine can be accelerated disperse and improve medicine bactericidal effect, thus play the function of cooperative drug sterilization.
The object of the invention can be reached by preceding method.Embodiments of the invention all can be implemented, and the invention is not restricted to this embodiment.
Claims (7)
1. a Blower in WTP noise collection system and device, comprises the district that quiets down, leads sound area and point sound area three part composition; The district that wherein quiets down is made up of refecting cover (1), the cover that quiets down (2), contraction section (3); Lead sound area to be made up of straight line sound guiding pipe (4) and elbow (5); Sound area is divided to be made up of a point acoustic shell (6), point sound pipe (7), point acoustic aperture (8); The skin of whole system is provided with noise reduction layer (9).
2. Blower in WTP noise collection system and device according to claim 1, is characterized in that, its each several part cover wall or tube wall are made by the metallic material of smooth finish surface, and thickness is 10 ~ 30mm; Outer wall arranges noise reduction layer, is wrapped up by the flexible material of the damping layer of 5 ~ 10mm and 20 ~ 50mm, appears befouling environment with what prevent a small amount of noise.
3. Blower in WTP noise collection system and device according to claim 1, is characterized in that, its refecting cover (1) is circular arc, central angle a
1be 15 ~ 30 °, with at reflective sound wave simultaneously, it converged to middle part as far as possible, facilitate noise collection; Contraction section (3) is taper, angle a
2it is 15 ~ 30 °; Angle of bend a
3be 45 °, in non-rectilinear transmitted noise process, reduce energy loss as far as possible.
4. Blower in WTP noise collection system and device according to claim 1, it is characterized in that, its cover that quiets down (2) area and a point sound pipe number all can set according to contact chamber area, and wherein divide sound pipe number to be not less than 1 every square metre, point acoustic aperture quantity is 9 ~ 15/root.
5. Blower in WTP noise collection system and device according to claim 1, is characterized in that, each several part cross section of device is circular, polygonal; Device each several part size carrys out specific design according to actual blower model, contact chamber area and both standoff distances, and device collects Noise Penalty <10%.
6. Blower in WTP noise collection system and device according to claim 1, it is characterized in that, multiple cover that quiets down (2) used time are provided with remittance sound section (10), and the cover (2) that respectively quiets down is collected noise and collected in same sound guiding pipe (4); Collect entrance and concentrate on pipeline side, angle of inclination a
4it is 45 °; Opposite side angle of inclination a
5it is 15 ~ 30 °, so that remittance noise is refracted as sound guiding pipe in the same way.
7. Blower in WTP noise collection system and device according to claim 1, it is characterized in that, in the process utilizing the sterilization of blower cooperative drug, the chemical feed pipe of contact chamber and sound guiding pipe are arranged side by side, noise causes adjacent domain water body to shake after entering water, noise automatic sterilization function simultaneously, can be accelerated medicine and disperses and improve medicine bactericidal effect, thus play the function of cooperative drug sterilization.
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| CN201410074479.3A CN103821725B (en) | 2014-03-03 | 2014-03-03 | A kind of Blower in WTP noise collection system and device |
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| CN103821725B true CN103821725B (en) | 2016-04-06 |
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| CN105749639B (en) * | 2016-05-03 | 2017-11-03 | 西南科技大学 | A kind of sack cleaner fan noise is collected and utilizes system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101354887A (en) * | 2007-07-25 | 2009-01-28 | 通用汽车公司 | Ambient noise injection for use in speech recognition |
| CN201442954U (en) * | 2009-02-06 | 2010-04-28 | 中国京冶工程技术有限公司 | Novel blast furnace gas pressure relief valve group and noise-and-vibration-reduction complete set device |
| CN202768404U (en) * | 2012-09-05 | 2013-03-06 | 山东海福德机械有限公司 | Noise enclosure for Roots blower |
| CN103219862A (en) * | 2013-04-09 | 2013-07-24 | 西安交通大学 | Noise power-generating device and noise power-generating equipment consisting of same |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4355315B2 (en) * | 2005-12-26 | 2009-10-28 | 東洋バルヴ株式会社 | Fluid purification device |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101354887A (en) * | 2007-07-25 | 2009-01-28 | 通用汽车公司 | Ambient noise injection for use in speech recognition |
| CN201442954U (en) * | 2009-02-06 | 2010-04-28 | 中国京冶工程技术有限公司 | Novel blast furnace gas pressure relief valve group and noise-and-vibration-reduction complete set device |
| CN202768404U (en) * | 2012-09-05 | 2013-03-06 | 山东海福德机械有限公司 | Noise enclosure for Roots blower |
| CN103219862A (en) * | 2013-04-09 | 2013-07-24 | 西安交通大学 | Noise power-generating device and noise power-generating equipment consisting of same |
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