CN203114751U - Integrated noise reduction device for vacuum pump - Google Patents

Integrated noise reduction device for vacuum pump Download PDF

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Publication number
CN203114751U
CN203114751U CN 201320061352 CN201320061352U CN203114751U CN 203114751 U CN203114751 U CN 203114751U CN 201320061352 CN201320061352 CN 201320061352 CN 201320061352 U CN201320061352 U CN 201320061352U CN 203114751 U CN203114751 U CN 203114751U
Authority
CN
China
Prior art keywords
vacuum pump
silencer
silencing apparatus
sound
outlet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN 201320061352
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Chinese (zh)
Inventor
党晓民
景嘉繁
王磊
陈志东
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xian Aircraft Design and Research Institute of AVIC
Original Assignee
Xian Aircraft Design and Research Institute of AVIC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Xian Aircraft Design and Research Institute of AVIC filed Critical Xian Aircraft Design and Research Institute of AVIC
Priority to CN 201320061352 priority Critical patent/CN203114751U/en
Application granted granted Critical
Publication of CN203114751U publication Critical patent/CN203114751U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model provides an integrated noise reduction device for a vacuum pump and relates to plane auxiliary equipment. The integrated noise reduction device solves the problem of controlling noise of the plane vacuum pump. The integrated noise reduction device comprises a sound insulation cover, an inlet silencer and an outer silencer, wherein the sound insulation cover covers the outer surface of the vacuum pump, a gap between 15mm and 25mm is reversed between the sound insulation cover and the vacuum pump, a layer of damping materials are laid on the inner side of the sound insulation cover, the tubular inlet silencer is sleeved out a punched area of an air inlet pipeline, the sleeve connection portion between the inlet silencer and the air inlet pipeline is sealed, a gap is reversed between the inlet silencer and the punched area of the air inlet pipeline, the tubular outlet silencer is sleeved out the punched area of an air outlet pipeline, the sleeve connection portion between the outlet silencer and the air outlet pipe is sealed, and a gap is reversed between the outlet silencer and the punched area of the air outlet pipe. The integrated noise reduction device is simple in structure, obvious in effect, good in environmental adaptability, high in reliability, low in cost and suitable for various planes.

Description

The integrated denoising device of vacuum pump
Technical field
The utility model relates to the noise reduction in gas pump noise like source.
Background technique
At present the vacuum pump on the aircraft because the space is narrow and small etc. environmental conditions limit, be difficult to implement effective noise reduction measure, generally can only rely on the influence of the sound insulation function reduction noise of floor or wallboard etc.
Existing denoising device or adopt single sound-insulating cover that noise source is completely cut off; Or adopt single sound-absorbing material, sound absorption structure etc. to absorb noise, fail to form whole noise reduction.
The model utility content
The purpose of this utility model is: a kind of integrated denoising device of vacuum pump is provided, under the prerequisite that does not influence systematic function, from the noise of source control aircraft vacuum pump, takes into account the compactedness of structure simultaneously, property easy for installation.
The technical solution of the utility model is: a kind of integrated denoising device of vacuum pump comprises: sound-insulating cover, import silencing apparatus, outlet silencing apparatus,
Described sound-insulating cover wraps the vacuum pump outer surface, stays the gap of 15-25mm between described sound-insulating cover and the vacuum pump, the inboard paving one deck of sound-insulating cover damping material;
The import silencing apparatus of tubulose is socketed in outside the air inlet pipeline perforated area, and import silencing apparatus and the sealing of air inlet pipeline belled position leave the gap between import silencing apparatus and the air inlet pipeline perforated area;
The outlet silencing apparatus of tubulose is socketed in outside the outlet pipe perforated area, and outlet silencing apparatus and the sealing of outlet pipe belled position leave the gap between outlet silencing apparatus and the outlet pipe perforated area.
The beneficial effects of the utility model are: the utility model is simple in structure, and effect is obvious, good environmental adaptability, and the reliability height, cost is lower.
Description of drawings
Fig. 1 is not for installing the vacuum system schematic representation of silencer additional.
Fig. 2 is vacuum pump and the pipeline schematic representation that installs additional behind the utility model denoising device.
Fig. 3 is the vacuum pump installed on the aircraft and the actual conditions schematic representation of pipeline.
Fig. 4 is vacuum pump and the pipeline actual conditions schematic representation that installs additional behind the utility model denoising device.
Fig. 5 is import muffler structure schematic representation of the present utility model.
Fig. 6 is exit silencer structural representation of the present utility model.
Fig. 7 is sound-insulating cover practical structures schematic representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail:
Figure 1 shows that the vacuum system that does not install silencer additional, comprise vacuum pump 3, air inlet pipeline 1 and outlet pipe 6.Gas enters vacuum pump from air inlet pipeline during vacuum pump work, discharges from outlet pipe.The vacuum pump and the pipeline that install additional behind the denoising device are seen schematic representation 2, and denoising device comprises import silencing apparatus 2, sound-insulating cover 4, exit silencer 7.
Described sound-insulating cover 4 wraps vacuum pump 3 outer surfaces, stays the gap of 15-25mm between described sound-insulating cover 4 and the vacuum pump 3, sound-insulating cover 4 inboard paving one deck damping materials 5;
The import silencing apparatus 2 of tubulose is socketed in outside air inlet pipeline 1 perforated area, and import silencing apparatus 2 and the sealing of air inlet pipeline 1 belled position leave the gap between import silencing apparatus 2 and air inlet pipeline 1 perforated area;
The outlet silencing apparatus 7 of tubulose is socketed in outside outlet pipe 6 perforated area, and outlet silencing apparatus 7 and the sealing of outlet pipe 6 belled positions leave the gap between outlet silencing apparatus 7 and outlet pipe 6 perforated area.
Baffler adopts micropunch sound absorption principle, and structure as shown in Figure 2.On one section tube wall importing and exporting pipeline, beat some holes equably.The outside sound absorption cavity that forms sealing of the pipeline section of punching.Processing aperture, pitch-row, pipe thickness and reflecting wall calculate according to microperforated panel structure Design principle to the distance (chamber is dark) of hole wall.
The shape of sound-insulating cover is according to the configuration design of vacuum pump, as shown in Figure 2.Stay the gap of 15-25mm between sound-insulating cover and the vacuum pump, and at the inboard paving one deck damping material of sound-insulating cover (Sound-proof material, felt etc.) to improve sound insulation capabilities.
Figure 3 shows that the vacuum pump installed on the aircraft and the actual conditions of pipeline, comprise vacuum pump, suction port pipeline and air outlet pipeline.The vacuum pump and the pipeline that install additional behind the denoising device are seen schematic representation 4, comprise the sound-insulating cover of the import silencing apparatus that is positioned on the suction port pipeline, wrapped vacuum pump and are positioned at exit silencer on the pipeline of air outlet.
Muffler structure such as Fig. 5, shown in Figure 6.On one section tube wall of former import and export pipeline, beat some holes equably.The pipeline section outside of punching forms the sound absorption cavity that seals with the plate welding, comprises sidewall and reflecting wall.Processing aperture, pitch-row, pipe thickness and reflecting wall calculate according to microperforated panel structure Design principle to the distance (chamber is dark) of hole wall.
The shape of sound-insulating cover is according to the configuration design of vacuum pump, as shown in Figure 7.Stay the gap of 15-25mm between sound-insulating cover and the vacuum pump, and between sound-insulating cover and vacuum pump even sound insulation by filling cotton.Install for convenient, sound-insulating cover is separated into some parts, and the place is screwed at parting surface, supports with rubber ring between sound-insulating cover and the vacuum pump.
The utility model combines the integrated noise reduction form of formation with the deadening of sound-insulating cover and the sound absorption of micropunch, has realized bigger erasure effect in wide band.Sound-insulating cover adhered shape vacuum pump profile, compact structure, it is little to take up room.The paving damping material improves soundproof effect between sound-insulating cover and the vacuum pump.Baffler profile applying pipeline shape, it is little to take up room, easy for installation.Adopt Double layer pipeline to form perforated microstructure, simple in structure, good environmental adaptability.

Claims (1)

1. the integrated denoising device of a vacuum pump is characterized in that, comprising: sound-insulating cover, import silencing apparatus, outlet silencing apparatus,
Described sound-insulating cover wraps the vacuum pump outer surface, stays the gap of 15-25mm between described sound-insulating cover and the vacuum pump, the inboard paving one deck of sound-insulating cover damping material;
The import silencing apparatus of tubulose is socketed in outside the air inlet pipeline perforated area, and import silencing apparatus and the sealing of air inlet pipeline belled position leave the gap between import silencing apparatus and the air inlet pipeline perforated area;
The outlet silencing apparatus of tubulose is socketed in outside the outlet pipe perforated area, and outlet silencing apparatus and the sealing of outlet pipe belled position leave the gap between outlet silencing apparatus and the outlet pipe perforated area.
CN 201320061352 2013-02-01 2013-02-01 Integrated noise reduction device for vacuum pump Expired - Lifetime CN203114751U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320061352 CN203114751U (en) 2013-02-01 2013-02-01 Integrated noise reduction device for vacuum pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320061352 CN203114751U (en) 2013-02-01 2013-02-01 Integrated noise reduction device for vacuum pump

Publications (1)

Publication Number Publication Date
CN203114751U true CN203114751U (en) 2013-08-07

Family

ID=48895101

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201320061352 Expired - Lifetime CN203114751U (en) 2013-02-01 2013-02-01 Integrated noise reduction device for vacuum pump

Country Status (1)

Country Link
CN (1) CN203114751U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113565800A (en) * 2021-06-11 2021-10-29 蓬莱中柏京鲁船业有限公司 Intelligent remote control device for marine pump set and use method thereof
CN113738706A (en) * 2021-09-18 2021-12-03 南京磁谷科技股份有限公司 Anti-surge muffler device for vacuum pump system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113565800A (en) * 2021-06-11 2021-10-29 蓬莱中柏京鲁船业有限公司 Intelligent remote control device for marine pump set and use method thereof
CN113565800B (en) * 2021-06-11 2023-08-25 蓬莱中柏京鲁船业有限公司 Intelligent remote control device for ship pump set and application method thereof
CN113738706A (en) * 2021-09-18 2021-12-03 南京磁谷科技股份有限公司 Anti-surge muffler device for vacuum pump system
CN113738706B (en) * 2021-09-18 2024-02-13 南京磁谷科技股份有限公司 Anti-surge muffler device for vacuum pump system

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Granted publication date: 20130807