CN209430261U - A kind of silencer of diesel-driven generator - Google Patents

A kind of silencer of diesel-driven generator Download PDF

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Publication number
CN209430261U
CN209430261U CN201920056296.7U CN201920056296U CN209430261U CN 209430261 U CN209430261 U CN 209430261U CN 201920056296 U CN201920056296 U CN 201920056296U CN 209430261 U CN209430261 U CN 209430261U
Authority
CN
China
Prior art keywords
mounting plate
level
noise elimination
shell
silencer
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 - Fee Related
Application number
CN201920056296.7U
Other languages
Chinese (zh)
Inventor
王庆丽
魏一凡
杨孟雨
王允皓
杜伟
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.)
Hebi Longsheng Environmental Protection Mine Equipment Co Ltd
Henan University
Original Assignee
Hebi Longsheng Environmental Protection Mine Equipment Co Ltd
Henan University
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 Hebi Longsheng Environmental Protection Mine Equipment Co Ltd, Henan University filed Critical Hebi Longsheng Environmental Protection Mine Equipment Co Ltd
Priority to CN201920056296.7U priority Critical patent/CN209430261U/en
Application granted granted Critical
Publication of CN209430261U publication Critical patent/CN209430261U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a kind of silencer of diesel-driven generator, including level-one noise elimination structure, second level noise elimination structure, aerofoil fan and shell, the both ends of the shell are connected separately with air inlet pipe and exhaust pipe, the first mounting plate being parallel to each other is provided in shell, second mounting plate, third mounting plate and the 4th mounting plate, first mounting plate, second mounting plate, multiple ventholes are offered on third mounting plate and the 4th mounting plate, level-one noise elimination cavity is formed between first mounting plate and the second mounting plate, second level noise elimination cavity is formed between third mounting plate and the 4th mounting plate, level-one noise elimination structure is arranged in level-one noise elimination cavity, second level noise elimination structure is arranged in second level noise elimination cavity, aerofoil fan is arranged between the second mounting plate and third mounting plate.The utility model not only ensure that the noise elimination effect to generator, but also gas in silencer can be made to flow smoothly, and effectively prevent pollution from environmental noise.

Description

A kind of silencer of diesel-driven generator
Technical field
The utility model relates to motor noise elimination technique field more particularly to a kind of silencer of diesel-driven generator.
Background technique
Diesel generating set inevitably generates noise in the process of running, if not taking necessary noise reduction measure, The noise that unit generates can cause serious harm to ambient enviroment.Therefore, the exhaust end of generator usually will be installed muffler, with Reduce the exhaust noise of generator.The silencer of existing diesel-driven generator uses single hop straight chip type anechoic sheet, and internal structure does not conform to Reason, sound deadening capacity is in 10-25dB(A), it not can solve noise qualified discharge problem.
Utility model content
The purpose of this utility model is to provide a kind of silencer of diesel-driven generator, can enhance noise elimination effect, realize hair Noise of motor qualified discharge.
In order to achieve the above purposes, the technical solution adopted by the utility model is:
A kind of silencer of diesel-driven generator, including level-one noise elimination structure, second level noise elimination structure, aerofoil fan and shell, institute The both ends for the shell stated are connected separately with air inlet pipe and exhaust pipe, and the first mounting plate being parallel to each other, second are provided in shell Mounting plate, third mounting plate and the 4th mounting plate, on the first mounting plate, the second mounting plate, third mounting plate and the 4th mounting plate Multiple ventholes are offered, form level-one noise elimination cavity, third mounting plate and the 4th between the first mounting plate and the second mounting plate Second level noise elimination cavity is formed between mounting plate, level-one noise elimination structure is arranged in level-one noise elimination cavity, and second level noise elimination structure is arranged two In grade noise elimination cavity, aerofoil fan is arranged between the second mounting plate and third mounting plate.
The level-one noise elimination structure and second level noise elimination structure includes multiple fold-line-shaped anechoic sheets, level-one noise elimination structure Multiple fold-line-shaped anechoic sheets are arranged in parallel between the first mounting plate and the second mounting plate, multiple fold-line-shapeds of second level noise elimination structure Anechoic sheet is arranged in parallel between third mounting plate and the 4th mounting plate.
The shell includes horizontal and vertical shell, is provided with horizontal baffle in vertical shell, on horizontal baffle Multiple ventholes are offered, vertical enclosure interior is divided into inlet chamber and adapter cavity, horizontal and vertical shell by horizontal baffle Adapter cavity connection, the inlet chamber of vertical shell is connected with air inlet pipe, and horizontal is connected with row far from the side of vertical shell Tracheae, the level-one noise elimination structure, second level noise elimination structure and aerofoil fan are arranged in horizontal.
Sound-absorbing material filled layer is provided on the inner wall of the inlet chamber of the vertical shell.
The sound-absorbing material filled layer is glass fibre cotton filled layer.
The utility model increases sound deadening capacity by two sections of noise elimination structures of setting, while using between two sections of noise elimination structures Aerofoil fan, optimize the aerodynamic characteristics inside silencer, reduce resistance, particularly suitable generator is close from factory circle, makes an uproar The occasion that sound disaster is administered.
The noise elimination structure of the utility model use fold-line-shaped anechoic sheet, avoid the direct projection of noise, using the incidence of sound wave, Refraction, reflection, interference and speed change, shift frequency, acoustic energy absorption is decayed, effectively proposes 63 ~ 8000HZ band noise noise reduction Height is to 40 ~ 50dB(A).
The shell of the utility model passes through generator tail gas first by the interconnected vertical shell of setting and horizontal The inlet chamber noise reduction of vertical shell, using level-one noise elimination cavity and the second level noise elimination cavity noise reduction for crossing chamber and entering horizontal, into one Step improves erasure effect.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Specific embodiment
As shown in Figure 1, a kind of silencer of diesel-driven generator described in the utility model, including level-one noise elimination structure, second level Noise elimination structure, aerofoil fan 6 and shell, the both ends of shell are connected separately with air inlet pipe 1 and exhaust pipe 10, are provided with phase in shell Mutually parallel the first mounting plate 2, the second mounting plate 5, third mounting plate 7 and the 4th mounting plate 8, the installation of the first mounting plate 2, second Multiple ventholes are offered on plate 5, third mounting plate 7 and the 4th mounting plate 8, between the first mounting plate 2 and the second mounting plate 5 Level-one noise elimination cavity 3 is formed, forms second level noise elimination cavity 9, the setting of level-one noise elimination structure between third mounting plate 7 and the 4th mounting plate 8 In level-one noise elimination cavity 3, second level noise elimination structure is arranged in second level noise elimination cavity 9, and aerofoil fan 6 is arranged in 5 He of the second mounting plate Between third mounting plate 7.
Venthole on first mounting plate 2, the second mounting plate 5, third mounting plate 7 and the 4th mounting plate 8 makes structure in shell At continuous airflow channel, the tail gas of generator enters silencer from air inlet pipe 1, first eliminates the noise through the level-one in level-one noise elimination cavity 3 Structure noise reduction, then gas circulation power is provided by aerofoil fan 6, so that gas is rapidly entered second level noise elimination cavity 9, is eliminated the noise using second level Structure noise reduction is discharged finally by exhaust pipe 10, not only ensure that noise elimination effect, but also gas can be made to flow smoothly.
Level-one noise elimination structure and second level noise elimination structure include multiple fold-line-shaped anechoic sheets 4 in the present embodiment, and level-one is eliminated the noise Multiple fold-line-shaped anechoic sheets 4 of structure are arranged in parallel between the first mounting plate 2 and the second mounting plate 5, second level noise elimination structure Multiple fold-line-shaped anechoic sheets 4 are arranged in parallel between third mounting plate 7 and the 4th mounting plate 8.After tail gas enters noise elimination cavity, folding Linear anechoic sheet 4 can make sound wave generate refraction, reflection, interference and speed change, shift frequency, so that acoustic energy attenuation, reduces noise.
The shell of the present embodiment includes horizontal 11 and vertical shell 12, is provided with horizontal baffle in vertical shell 12 14, multiple ventholes are offered on horizontal baffle 14, and horizontal baffle 14 will be divided into inlet chamber 15 and transition inside vertical shell 12 Chamber 16, sound-absorbing material filled layer 13 is provided on the inner wall of inlet chamber 15, and sound-absorbing material filled layer 13 can fill for glass fibre Layer, polyester fiber filled layer or glass fibre cotton filled layer etc..Horizontal 11 is connected to the adapter cavity 16 of vertical shell 12, Air inlet pipe 1 connects the inlet chamber 15 of vertical shell 12, and exhaust pipe 10 connects side of the horizontal 11 far from vertical shell 12, and one Grade noise elimination structure, second level noise elimination structure and aerofoil fan 6 are arranged in horizontal 11.
The tail gas of generator enters vertical shell 12, first carries out preliminary noise reduction by the filled layer in inlet chamber 15, then through water Flat partition board 14 enters adapter cavity 16, changes flow direction in adapter cavity 16, sequentially enters the level-one noise elimination cavity 3 of horizontal 11 With second level noise elimination cavity 9, depth noise reduction is carried out.
The working principle of the utility model is: the tail gas of generator enters in silencer from air inlet pipe 1, first by vertical shell The inlet chamber 15 on 12 tops absorbs partial noise, then changes flow direction by adapter cavity 16, into the level-one of horizontal 11 Noise elimination cavity 3 makes sound wave generate reflection and interference effect etc., makes an uproar to reduce to a certain extent by multiple fold-line-shaped anechoic sheets 4 Sound;Under the action of aerofoil fan 6, tail gas in level-one noise elimination cavity 3 keep certain flow rate pass through the venthole on mounting plate into Enter second level noise elimination cavity 9, denoised by the further noise reduction of multiple fold-line-shaped anechoic sheets 4, is discharged eventually by exhaust pipe 10.
The utility model not only ensure that the noise elimination effect to generator, but also gas in silencer can be made to flow smoothly, effectively Pollution from environmental noise is prevented and treated.

Claims (5)

1. a kind of silencer of diesel-driven generator, it is characterised in that: including level-one noise elimination structure, second level noise elimination structure, aerofoil fan And shell, the both ends of the shell are connected separately with air inlet pipe and exhaust pipe, and the first peace being parallel to each other is provided in shell Loading board, the second mounting plate, third mounting plate and the 4th mounting plate, the first mounting plate, the second mounting plate, third mounting plate and the 4th Multiple ventholes are offered on mounting plate, and level-one noise elimination cavity, third installation are formed between the first mounting plate and the second mounting plate Second level noise elimination cavity is formed between plate and the 4th mounting plate, level-one noise elimination structure is arranged in level-one noise elimination cavity, second level noise elimination structure It is arranged in second level noise elimination cavity, aerofoil fan is arranged between the second mounting plate and third mounting plate.
2. a kind of silencer of diesel-driven generator according to claim 1, it is characterised in that: the level-one noise elimination structure and Second level noise elimination structure includes multiple fold-line-shaped anechoic sheets, and multiple fold-line-shaped anechoic sheets of level-one noise elimination structure are arranged in parallel in Between one mounting plate and the second mounting plate, multiple fold-line-shaped anechoic sheets of second level noise elimination structure be arranged in parallel in third mounting plate and Between 4th mounting plate.
3. a kind of silencer of diesel-driven generator according to claim 2, it is characterised in that: the shell includes horizontal shell Body and vertical shell are provided with horizontal baffle in vertical shell, multiple ventholes are offered on horizontal baffle, horizontal baffle will erect Straight enclosure interior is divided into inlet chamber and adapter cavity, and horizontal is connected to the adapter cavity of vertical shell, the inlet chamber of vertical shell It is connected with air inlet pipe, horizontal is connected with exhaust pipe far from the side of vertical shell, and the level-one noise elimination structure, second level disappear Acoustic form and aerofoil fan are arranged in horizontal.
4. a kind of silencer of diesel-driven generator according to claim 3, it is characterised in that: the air inlet of the vertical shell Sound-absorbing material filled layer is provided on the inner wall of chamber.
5. a kind of silencer of diesel-driven generator according to claim 4, it is characterised in that: the sound-absorbing material filled layer For glass fibre cotton filled layer.
CN201920056296.7U 2019-01-14 2019-01-14 A kind of silencer of diesel-driven generator Expired - Fee Related CN209430261U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201920056296.7U CN209430261U (en) 2019-01-14 2019-01-14 A kind of silencer of diesel-driven generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201920056296.7U CN209430261U (en) 2019-01-14 2019-01-14 A kind of silencer of diesel-driven generator

Publications (1)

Publication Number Publication Date
CN209430261U true CN209430261U (en) 2019-09-24

Family

ID=67976383

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201920056296.7U Expired - Fee Related CN209430261U (en) 2019-01-14 2019-01-14 A kind of silencer of diesel-driven generator

Country Status (1)

Country Link
CN (1) CN209430261U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112377289A (en) * 2020-11-16 2021-02-19 上海电器科学研究所(集团)有限公司 Reduce supply vehicle noise cancelling structure of infrared characteristic

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112377289A (en) * 2020-11-16 2021-02-19 上海电器科学研究所(集团)有限公司 Reduce supply vehicle noise cancelling structure of infrared characteristic
CN112377289B (en) * 2020-11-16 2022-06-24 上海电器科学研究所(集团)有限公司 Reduce supply vehicle noise cancelling structure of infrared characteristic

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GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20190924

Termination date: 20210114

CF01 Termination of patent right due to non-payment of annual fee