CN105244014A - Integrated active and passive combined silencing apparatus for fluid filled pipe - Google Patents
Integrated active and passive combined silencing apparatus for fluid filled pipe Download PDFInfo
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- CN105244014A CN105244014A CN201510657878.7A CN201510657878A CN105244014A CN 105244014 A CN105244014 A CN 105244014A CN 201510657878 A CN201510657878 A CN 201510657878A CN 105244014 A CN105244014 A CN 105244014A
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Abstract
The objective of the invention is to provided an integrated active and passive combined silencing apparatus for a fluid filled pipe. The integrated active and passive combined silencing apparatus comprises a housing, an upstream outer pipe end socket and a downstream outer pipe end socket. The housing is equipped with a through hole. The upstream outer pipe end socket and the downstream outer pipe end socket are fixed to the two ends of the through hole respectively. The upstream outer pipe end socket is connected to a tubular sensing/actuating integration device, and the downstream outer pipe end socket is connected to a hole passing pipe segment. The tubular sensing/actuating integration device is connected to the hole passing pipe segment. The tubular sensing/actuating integration device comprises a base layer, a sensing layer and an actuating layer, wherein the actuating layer is fixed to the outer surface of the base layer, and the sensing layer is fixed to the inner surface of the base layer. The upstream outer pipe end socket is provided with a hydrophone. Signals generated by the hydrophone and the sensing layer pass through a cable and then are sent to an active controller through a signal pick-up and lowpass filtering system. After the active controller calculates control signals, the actuating layer is driven by means of a power amplification system. A complementary effect is exhibited for noise abatement frequency bands, and noise control over full frequency bands can be achieved.
Description
Technical field
What the present invention relates to is a kind of noise-abatement equipment, the specifically noise-abatement equipment of liquid-filling pipe.
Background technology
Liquid-filling pipe is in field, naval vessel extensive application, but the Noise measarement of pipe system is a puzzlement people's difficult problem always.Ducted flow noise not only affects the living environment of staff, and the propagation of flow noise can cause downstream line or other equipment stress fluctuation and mechanical vibration, and this will reduce the serviceable life of equipment; Particularly, the mouth of pipe radiated noise of Sea Chest also can reduce naval vessel disguise.At present, in charging line, install silencing equipment is economy and widely a kind of solution the most.But traditional impedance muffler can not tracking noise frequency change and low frequency noise reduction is not obvious, active silencer cannot meet again medium-high frequency eliminate the noise, therefore existing liquid-filling pipe silencing equipment can't reach desirable soundproof effect.
A kind ofly high-pressure liquid-filling pipeline, active silencer based on tubular piezo-electric ceramic actuator is can be used for as the publication number patent " the integrated active silencer of high-pressure liquid-filling pipeline " that is CN104500904A discloses, mainly comprise cylindrical housing, be arranged at the actuator based on tubular piezo-electric pottery in the middle of shell, sensor inside upstream and downstream pipeline section, the picking up signal between housing and actuator pipeline section and conditioning system, power amplifying system, High Speed Signal Processor System based on DSP.It mainly utilizes Active Noise Control to offset low-frequency noise, and the derivative medium-high frequency quadratic noise of the not obvious and actuator of medium-high frequency noise reduction cannot process.
Summary of the invention
The object of the present invention is to provide the low-frequency noise obtained low-pass filtering to implement ACTIVE CONTROL, so utilize impedance complex formula noise elimination structure to derive the work of start layer with the liquid-filling pipe active-passive integratedization composite sound damping device of the passive noise elimination of untreated high-frequency noises.
The object of the present invention is achieved like this:
Liquid-filling pipe active-passive integratedization composite sound damping device of the present invention, it is characterized in that: comprise housing, channel closure outside upstream, channel closure outside downstream, housing is the hollow-core construction of tubular, be provided with through hole, outside upstream, outside channel closure and downstream, channel closure is separately fixed at the two ends of through hole, channel closure connecting tubular sensing/start integrating device outside upstream, outside downstream, channel closure connects perforation pipeline section, tubulose sensing/start integrating device is connected with perforation pipeline section and the two is all positioned in housing, described tubulose sensing/start integrating device comprises basic unit, sensing layer, start layer, start layer to be encapsulated in epoxy resin and to be fixed on base layer exterior surface, sensing layer is fixed on base layer interior surface, channel closure is installed nautical receiving set device outside upstream, described nautical receiving set device comprises nautical receiving set, the signal that nautical receiving set and sensing layer produce enters active controller by cable through picking up signal and filtering system of bowing, active controller drives start layer by power amplifying system after calculating control signal.
The present invention can also comprise:
1, shell inner surface arranges Advances in Sound Absorption Polymers.
2, described nautical receiving set device also comprise nautical receiving set base, interlude, shore pad, top layer lid, nautical receiving set base is the tubular construction of hollow, interlude is arranged on nautical receiving set base and the bottom of interlude and stretches in nautical receiving set base, nautical receiving set to be arranged on interlude and to stretch in nautical receiving set base, top layer lid is installed above interlude, installs between top layer lid and nautical receiving set and shore pad.
Advantage of the present invention is: first the present invention implements ACTIVE CONTROL to the low-frequency noise that low-pass filtering obtains, and then utilize impedance complex formula noise elimination structure to the passive noise elimination of high-frequency noises, the combination of this ACTIVE CONTROL link and passive noise elimination link, the Noise measarement of the Whole frequency band that noise elimination frequency band complements one another, can realize.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of nautical receiving set device of the present invention;
Fig. 3 is the structural representation of tubulose of the present invention sensing/start integrating device.
Embodiment
Below in conjunction with accompanying drawing citing, the present invention is described in more detail:
Composition graphs 1 ~ 3, liquid-filling pipe active-passive integratedization composite sound damping device of the present invention, comprise channel closure 3 outside channel closure 1 outside upstream, barrel-type casing 2, downstream, interior pipeline in the housing arranges tubulose sensing/start integrating device 7, described sensing/start integrating device 7 adopts flange to be connected with channel closure outside upstream 1 and pipeline section 8 of boring a hole respectively, perforation pipeline section 8 is socketed with channel closure 3 outside downstream, form a resonant cavity by perforated pipe and shell and interior pipeline, preferably arrange Advances in Sound Absorption Polymers 4 at barrel-type casing 2 inside surface; The resonant cavity of described formation and acoustic absorbant form passive noise elimination link.Outside upstream, channel closure 1 pipeline section preferably arrange nautical receiving set 6 and in capping, fix integrated control module 10, integrating control unit 10 is connected with nautical receiving set 6, tubulose sensing/start integrating device 7 with cable respectively; Described nautical receiving set 6, integrating control unit 10 and tubulose sensing/start integrating device 7 form ACTIVE CONTROL link jointly.
First the present invention is determined the working frequency range of passive noise elimination by the impedance type noise elimination structure in passive noise elimination link, determine the deadening frequency band of ACTIVE CONTROL link further, and design feed-forward control algorithm, and on noise elimination frequency band, both complement one another.In specific implementation process, nautical receiving set 6 is preferably arranged in channel closure 1 outside upstream, and supporting component also comprises: nautical receiving set base 14, interlude 15, sealing rubber ring 17, shore pad 18, top layer lid 16.Outer channel closure 1 pipe segment inner surface of bottom upstream relative of nautical receiving set base 14 has identical radian, welds with pipe segment inner surface flush seal.Nautical receiving set 6 pickoff signals, sensing layer 13 is measured pressure fluctuation and is carried out picking errors signal, the signal obtained through cable transfer to integrating control unit 10; Because cable is through the outer channel closure 1 in upstream, for ensure resonant cavity integrality, prevent topping up from revealing, cable needs removable rubber seal 5 sealing to fix.ACTIVE CONTROL link major control low-frequency noise, picking up signal in integrating control unit 10 and low-pass filtering system 19 are to the reference obtained, error signal low-pass filtering, active controller 20 calculates control signal by the feedforward arithmetic designed, and control signal is through power amplifying system 21 rear drive tubulose start layer 11; Consider that start layer 11 affects the secondary acoustic feedback of nautical receiving set 6 reference signal, preferably design on-line identification link in secondary acoustic feedback path in algorithm structure to offset an influence.Passive Control link major control high-frequency noises, the passive noise elimination of impedance complex formula noise elimination structure be made up of resonant cavity and Advances in Sound Absorption Polymers 4 with unsteered high-frequency noises perforated pipeline section 8 that the work of tubulose start layer 11 is derivative.
The present invention includes channel closure 3 outside channel closure 1 outside upstream, barrel-type casing 2, downstream, interior pipeline in the housing arranges tubulose sensing/start integrating device 7, described sensing/start integrating device 7 adopts flange bolt 9 to be connected with channel closure outside upstream 1 and pipeline section 8 of boring a hole respectively, perforation pipeline section 8 is socketed with channel closure 3 outside downstream, form a resonant cavity by perforated pipe and shell, interior pipeline, preferably arrange Advances in Sound Absorption Polymers 4 at barrel-type casing 2 inside surface; The resonant cavity of described formation and acoustic absorbant form passive noise elimination link.Outside upstream, channel closure 1 pipeline section preferably arrange nautical receiving set 6 and in capping, fix integrated control module 10, integrating control unit 10 is connected with nautical receiving set 6, tubulose sensing/start integrating device 7 with cable respectively; Described nautical receiving set 6, integrating control unit 10 and tubulose sensing/start integrating device 7 form ACTIVE CONTROL link jointly.
Outside upstream, outside channel closure 1, downstream, channel closure 3 and barrel-type casing 2 adopt Flange joint; In interior pipeline, outside upstream, channel closure 1, tubulose sensing/start integrating device 7, perforation pipeline section 8 adopt Flange joint; Perforation pipeline section 8 is socketed with channel closure 3 watertight outside downstream; Separate between each parts, be convenient to maintenance and repair, improve secondary utilization rate.
Tubulose sensing/start integrating device 7 comprises: start layer 11, basic unit 12, sensing layer 13.Start layer 11 is encapsulated in epoxy resin, is fixed on basic unit 14 outside surface, and is connected with the external world by a cable; Sensing layer 13 is fixed on basic unit 14 inside surface, and is connected with the external world by a cable; Two cables of described extraction are fixing through using removable rubber seal 5 to seal during housing.
Nautical receiving set 6 is preferably arranged in channel closure 1 outside upstream, and supporting component also comprises: nautical receiving set base 14, interlude 15, sealing rubber ring 17, shore pad 18, top layer lid 16.Outer channel closure 1 pipe segment inner surface of bottom upstream relative of nautical receiving set base 14 has identical radian, welds with pipe segment inner surface flush seal.
Integrating control unit 10 mainly comprises: active controller 20, picking up signal and low-pass filtering system 19, power amplifying system 21.Active controller 20 obtains reference signal from nautical receiving set 6, obtains pressure fluctuation error signal from sensing layer 13; Due to ACTIVE CONTROL link major control low-frequency noise, the signal obtained all will through low-pass filtering; Integrating control unit 10 adopts feedforward arithmetic, considers the secondary acoustic feedback impact of start layer 11, algorithm structure also needs design secondary acoustic feedback path on-line identification to offset an influence.
Interior pipeline in the middle of housing arranges tubulose sensing/start integrating device 7, described sensing/start integrating device adopts flange to be connected with channel closure outside upstream 1 and pipeline section 8 of boring a hole respectively, perforation pipeline section 8 is socketed with channel closure 3 outside downstream, form a resonant cavity by perforated pipe and shell and interior pipeline, preferably arrange Advances in Sound Absorption Polymers 4 at barrel-type casing 2 inside surface; Described resonant cavity and acoustic absorbant form passive noise elimination link.Outside upstream, channel closure 1 is arranged nautical receiving set 6 and is arranged integrating control unit 10, and described nautical receiving set 6, integrating control unit 10 and tubulose sensing/start integrating device 7 form feedforward ACTIVE CONTROL link jointly.
Tubulose sensing/start integrating device 7 comprises: start layer 11, basic unit 12, sensing layer 13.Start layer 11 is encapsulated in epoxy resin, is fixed on basic unit 14 outside surface, and is connected with the external world by a cable; Sensing layer 13 is fixed on basic unit 14 inside surface, and is connected with the external world by a cable.
Nautical receiving set 6 is preferably arranged in channel closure 1 outside upstream, and supporting component also comprises: nautical receiving set base 14, interlude 15, sealing rubber ring 17, shore pad 18, top layer lid 16.
Outer channel closure 1 inside surface of bottom upstream relative of nautical receiving set base 14 has identical radian, welds with pipe segment inner surface flush seal.
Integrating control unit 10 mainly comprises: active controller 20, picking up signal and low-pass filtering system 19, power amplifying system 21.
Before tubulose sensing/start integrating device 7 is arranged in perforation pipeline section 8, is convenient to impedance complex formula noise elimination structure and eliminates high-frequency noises derivative when tubulose sensing/start integrating device 7 works.The cable that start layer 11, sensing layer 13 are drawn is fixing through needing removable rubber seal 5 to seal during housing.
Claims (3)
1. liquid-filling pipe active-passive integratedization composite sound damping device, it is characterized in that: comprise housing, channel closure outside upstream, channel closure outside downstream, housing is the hollow-core construction of tubular, be provided with through hole, outside upstream, outside channel closure and downstream, channel closure is separately fixed at the two ends of through hole, channel closure connecting tubular sensing/start integrating device outside upstream, outside downstream, channel closure connects perforation pipeline section, tubulose sensing/start integrating device is connected with perforation pipeline section and the two is all positioned in housing, described tubulose sensing/start integrating device comprises basic unit, sensing layer, start layer, start layer to be encapsulated in epoxy resin and to be fixed on base layer exterior surface, sensing layer is fixed on base layer interior surface, channel closure is installed nautical receiving set device outside upstream, described nautical receiving set device comprises nautical receiving set, the signal that nautical receiving set and sensing layer produce enters active controller by cable through picking up signal and filtering system of bowing, active controller drives start layer by power amplifying system after calculating control signal.
2. liquid-filling pipe active-passive integratedization composite sound damping device according to claim 1, is characterized in that: shell inner surface arranges Advances in Sound Absorption Polymers.
3. liquid-filling pipe active-passive integratedization composite sound damping device according to claim 1 and 2, it is characterized in that: described nautical receiving set device also comprises nautical receiving set base, interlude, shores pad, top layer lid, nautical receiving set base is the tubular construction of hollow, interlude is arranged on nautical receiving set base and the bottom of interlude and stretches in nautical receiving set base, nautical receiving set to be arranged on interlude and to stretch in nautical receiving set base, top layer lid is installed above interlude, installs between top layer lid and nautical receiving set and shore pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510657878.7A CN105244014B (en) | 2015-10-13 | 2015-10-13 | Active and passive integrated composite muffler device for liquid charging pipeline |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510657878.7A CN105244014B (en) | 2015-10-13 | 2015-10-13 | Active and passive integrated composite muffler device for liquid charging pipeline |
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| CN105244014A true CN105244014A (en) | 2016-01-13 |
| CN105244014B CN105244014B (en) | 2020-09-11 |
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| CN201510657878.7A Active CN105244014B (en) | 2015-10-13 | 2015-10-13 | Active and passive integrated composite muffler device for liquid charging pipeline |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106090521A (en) * | 2016-05-26 | 2016-11-09 | 哈尔滨工程大学 | Liquid-filling pipe low frequency drum-type active-passive composite sound-attenuating system |
| CN107244397A (en) * | 2017-05-12 | 2017-10-13 | 哈尔滨工程大学 | A kind of heat dissipation type acoustic hood of gravity flow under water with noise elimination structure |
| CN108150753A (en) * | 2018-02-07 | 2018-06-12 | 北京市劳动保护科学研究所 | A kind of active-passive composite silencer |
| CN108974305A (en) * | 2018-06-27 | 2018-12-11 | 中国船舶重工集团公司第七〇九研究所 | Runner between a kind of side of a ship of resonant silencing |
| CN109324119A (en) * | 2018-09-13 | 2019-02-12 | 哈尔滨工程大学 | Muffler Performance test experiments pipeline section |
| CN109405262A (en) * | 2018-12-14 | 2019-03-01 | 中国船舶重工集团公司第七〇四研究所 | Pipeline Active noise control system, active-passive composite pipeline silencer |
| CN110435817A (en) * | 2019-07-19 | 2019-11-12 | 中国船舶重工集团公司第七一九研究所 | A kind of sharp oise damping means of underwater bossy body stream |
| CN111119402A (en) * | 2019-12-30 | 2020-05-08 | 哈尔滨工程大学 | Periodic piezoelectric beam structure with active vibration and noise reduction function |
| CN114382981A (en) * | 2022-01-05 | 2022-04-22 | 中国人民解放军海军工程大学 | Active and passive muffler device for liquid filling pipeline |
| CN114396523A (en) * | 2022-02-24 | 2022-04-26 | 中国人民解放军海军工程大学 | Silencer for liquid filling pipeline |
| CN114396523B (en) * | 2022-02-24 | 2024-05-03 | 中国人民解放军海军工程大学 | Active and passive composite muffler for liquid filling pipeline |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106090521A (en) * | 2016-05-26 | 2016-11-09 | 哈尔滨工程大学 | Liquid-filling pipe low frequency drum-type active-passive composite sound-attenuating system |
| CN107244397A (en) * | 2017-05-12 | 2017-10-13 | 哈尔滨工程大学 | A kind of heat dissipation type acoustic hood of gravity flow under water with noise elimination structure |
| CN107244397B (en) * | 2017-05-12 | 2019-01-15 | 哈尔滨工程大学 | A kind of underwater gravity flow heat dissipation type acoustic hood with noise elimination structure |
| CN108150753A (en) * | 2018-02-07 | 2018-06-12 | 北京市劳动保护科学研究所 | A kind of active-passive composite silencer |
| CN108974305A (en) * | 2018-06-27 | 2018-12-11 | 中国船舶重工集团公司第七〇九研究所 | Runner between a kind of side of a ship of resonant silencing |
| CN109324119A (en) * | 2018-09-13 | 2019-02-12 | 哈尔滨工程大学 | Muffler Performance test experiments pipeline section |
| CN109405262A (en) * | 2018-12-14 | 2019-03-01 | 中国船舶重工集团公司第七〇四研究所 | Pipeline Active noise control system, active-passive composite pipeline silencer |
| CN110435817A (en) * | 2019-07-19 | 2019-11-12 | 中国船舶重工集团公司第七一九研究所 | A kind of sharp oise damping means of underwater bossy body stream |
| CN111119402A (en) * | 2019-12-30 | 2020-05-08 | 哈尔滨工程大学 | Periodic piezoelectric beam structure with active vibration and noise reduction function |
| CN114382981A (en) * | 2022-01-05 | 2022-04-22 | 中国人民解放军海军工程大学 | Active and passive muffler device for liquid filling pipeline |
| CN114396523A (en) * | 2022-02-24 | 2022-04-26 | 中国人民解放军海军工程大学 | Silencer for liquid filling pipeline |
| CN114396523B (en) * | 2022-02-24 | 2024-05-03 | 中国人民解放军海军工程大学 | Active and passive composite muffler for liquid filling pipeline |
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| CN105244014B (en) | 2020-09-11 |
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