CN201650452U - Silencing device of diesel generating set - Google Patents

Silencing device of diesel generating set Download PDF

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Publication number
CN201650452U
CN201650452U CN2010201667113U CN201020166711U CN201650452U CN 201650452 U CN201650452 U CN 201650452U CN 2010201667113 U CN2010201667113 U CN 2010201667113U CN 201020166711 U CN201020166711 U CN 201020166711U CN 201650452 U CN201650452 U CN 201650452U
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CN
China
Prior art keywords
air
generating set
diesel generating
wall
silencing apparatus
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Expired - Fee Related
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CN2010201667113U
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Chinese (zh)
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任小平
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任小平
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Priority to CN2010201667113U priority Critical patent/CN201650452U/en
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Publication of CN201650452U publication Critical patent/CN201650452U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a silencing device of a diesel generating set, wherein the diesel generating set is arranged in a chamber formed by a wall, a damper is arranged on lower side of a subbase of the diesel generating set, the chamber is provided with an air duct inside, the air duct is divided into an air inlet duct and an air outlet duct, an air inlet and an air outlet of the air duct are respectively arranged on two sides of the wall, the wall is also provided with a composite soundproof door, the air duct is of a S shape, the air inlet duct is provided with an air inlet silencer composed of air inlet silencing members, the air outlet duct is provided with an air outlet silencer composed of air outlet silencing members, and the pipeline of the air discharge pipe near the mouth of the air discharge pipe of the diesel generating set is connected with an air discharge silencer. By means of several silencing measures simultaneously, it is possible to reduce noises, especially middle/low-frequency noises mostly, and to ensure an aeration heat radiation effect on the chamber simultaneously such that there is no noise outside a machinery room by three meters.

Description

A kind of silencing apparatus of diesel generating set
Technical field
The utility model relates to a kind of silencing apparatus of diesel generating set.
Background technique
The noise of diesel generating set is the complicated sound source that is made of multiple sound source.Its main sound source is from diesel generating set itself.According to the noise radiation mode, it can be divided into aerodynamic noise, body surface radiated noise and electromagnetic noise, and according to the reason that produces, the diesel generating set Surface Radiation Noise can be divided into combustion noise and mechanical noise again.Wherein aerodynamic noise is the main noise source of noise of diesel motor set.Aerodynamic noise is because the unstable process of gas, promptly by the interaction of the disturbance of gas and gas and object and the noise of diesel motor set that produces, directly, comprise induction noise, exhaust sound and cooling fan noise to the aerodynamic noise of atmospheric radiation.Electromagnetic noise is the Diesel Generator Noise that is produced in the rotation of electromagnetic field high speed by generator amature.Combustion noise be since the pressure surge that the diesel generating set combustor inner cylinder forms by cylinder cap, piston, Lian Xuan, bent axle, body noise to extraradial diesel generating set, the mechanical noise noise of diesel motor set that to be piston produce the mechanical impact vibration of the bump of cylinder sleeve and movement parts.
During the diesel generator operation, can produce the noise of 95-110 decibel usually.As everyone knows, noise level is the quiet normal environment of comparison at 30~40 decibels; Surpass 50 decibels and will influence sleep and rest; Disturb more than 70 decibels and talk, cause and upset, distraction; Long-term work or live in noisy environment more than 90 decibels can have a strong impact on hearing and cause the generation of other diseases such as cardiovascular.Therefore, the noise that produces during the diesel generating set operation will cause serious harm to surrounding environment.Under the situation that noise source can't reduce, the noise transmission that must take certain quiet measure to lower diesel generating set, thus reduction is to the sound pollution of surrounding environment.
The model utility content
At above-mentioned the deficiencies in the prior art part, under the situation that noise source can't reduce, the utility model provides a kind of can effectively lower the silencing apparatus that noise of diesel motor set is propagated, when making the diesel generating set operation, the outer three meters no running noises of machine room are heard, and can effectively solve the problem that above-mentioned prior art exists.
To achieve these goals, the technical solution adopted in the utility model is: the silencing apparatus that discloses a kind of diesel generating set, diesel generating set is placed in indoor that body of wall surrounds, the base of diesel generating set has vibration damper, in the indoor air channel that also is provided with, the air channel is divided into air inlet duct and air exhaust channel, the intake grill in air channel and exhaust port are separately positioned on the both sides of body of wall, on body of wall, also be provided with compound soundproof door, described air channel is a S shape, in air inlet duct, be provided with the air intake silencing apparatus that the air intake silencer element combines, be provided with the air draft silencing apparatus that the air draft silencer element combines in air exhaust channel, pipeline connects an exhaust silencer at diesel generating set exhaust pipe mouth place.
As preferably, the inwall of body of wall is provided with sound absorbent.
As preferably, described body of wall mainly is made of the metal perforated plate and the inner fiber sound-absorbing material body of outside.
As preferably, diesel generating set places the side away from intake grill, and its unit blower fan cooler is near exhaust port.
Compared with prior art, the beneficial effect that this model utility is brought is: the utility model is in the noise processed of diesel generating set, adopt the outlet pipe silencing apparatus of multiple noise elimination noise reduction measure and installation can effectively reduce the noise at diesel generating set outlet pipe place simultaneously, the noise elimination air channel reduces noise in maximum magnitude, medium and low frequency noise particularly, simultaneously can guarantee indoor result of ventilating heat dissipation, realize the outer three meters no running noises hearsays of machine room.
Description of drawings
Fig. 1 is the utility model embodiment 1 a structural representation;
Fig. 2 is the utility model embodiment 2 a structural representation.
Embodiment
The utility model is described in further detail below in conjunction with drawings and the specific embodiments.
Diesel generating set 10 is placed in indoor that body of wall 1 surrounds, and the base of diesel generating set 10 has vibration damper 11.In the indoor air channel 9 that also is provided with, air channel 9 is divided into air inlet duct 4 and air exhaust channel 5, the intake grill in air channel 9 and exhaust port are separately positioned on the both sides of body of wall 1, described air channel 9 is a S shape, in air inlet duct 4, be provided with the air intake silencing apparatus 6 that the air intake silencer element combines, in air exhaust channel 5, be provided with the air draft silencing apparatus 8 that the air draft silencer element combines, connect an exhaust silencer 7, on body of wall 1, also be provided with compound soundproof door 3 at diesel generating set 10 exhaust pipe mouth place pipelines.
As shown in Figure 1, as embodiment 1 of the present utility model:
Described body of wall 1 is the common brick wall construction, at the inwall and the end face of machine room body of wall 1 sound absorbent 2 is installed all, and the inside of described sound absorbent 2 is the fiber sound-absorbing material, and surfacing is done with the orifice plate of metal perforated plate or other material in the outside, and the thickness that makes is 80-140mm.Diesel generating set 10 is placed in indoor that body of wall 1 surrounds, and its base is divided into a vibration damper 11 in order to reduce noise face sound over the ground.In indoor two air channels 9 that positive and negative S shape is set, it is respectively the air inlet duct 4 of positive S shape and the air exhaust channel 5 of anti-S shape.The air intake silencing apparatus 6 that in air inlet duct 4, is provided with, the air draft silencing apparatus 8 that air exhaust channel 5 in, is provided with and realize noise reduction, quiet with the exhaust silencer 7 of diesel generating set 10 exhaust pipe mouth places pipelines connection.Exhaust silencer 7 can be arranged on and indoorly also can be arranged on the outdoor roof or other places far away, according to actual user's needs, places the place of being convenient to install to get final product.In the present embodiment, diesel generating set 10 places the side away from intake grill, its unit blower fan cooler is near exhaust port, exhaust silencer 7 places on the outdoor roof, in addition, on body of wall 1, also be provided with one or two compound soundproof doors 3 and a glass sound proof window that is used to observe also can be set, for strengthening soundproof effect, what the glass sound proof window generally adopted is the double glazing sound proof window, and compound soundproof door 3 adopts inner for making for the steel of thin metal perforated plate in fiber sound-absorbing material, outside.
As shown in Figure 2, embodiment 2:, can adopt the mode of composite assembly acoustic board to surround the interior space of sealing in the open air, specifically, described body of wall 1 mainly is made of the metal perforated plate and the inner fiber sound-absorbing material body of outside.Body of wall 1 surrounds indoor environment, and diesel generating set 10 is placed wherein, and its base is divided into a vibration damper 11.In indoor two air channels 9 that positive and negative S shape is set, it is divided into the air inlet duct 4 that is positive S shape and the air exhaust channel 5 of anti-S shape, the air draft silencing apparatus 8 of the air intake silencing apparatus 6 that is provided with air inlet duct 4 in, setting air exhaust channel 5 in and realize noise reduction, quiet with the exhaust silencer 7 of diesel generating set 10 exhaust pipe mouth places pipelines connection.Diesel generating set 10 places the side away from intake grill, and its unit blower fan cooler is near exhaust port.On body of wall 1, also establish a compound soundproof door 3 and be convenient to personnel's turnover.
Its action principle is, described intake grill and exhaust port are open design, installing silencer element in air channel 9, shape in conjunction with its S shape can guarantee indoor efficiently radiates heat, ventilation, diesel generating set 10 carries blower fan and enter outside air from intake grill, discharges hot blast after heating up through indoor environment from exhaust port.Described body of wall 1 adopts the absorbing wall body or add sound absorbent 2 on the metope body of common brick wall structure, can effectively eliminate resonance, thereby the reduction noise, exhaust silencer 7 can effectively reduce the noise of discharging from diesel generating set 10 outlet pipes, thereby realizes multi-faceted noise reduction.
This silencing apparatus is applicable to the machinery that other large-scale noises are bigger too.
More than the silencing apparatus of diesel generating set provided by the utility model has been carried out detailed introduction, used specific case herein principle of the present utility model and mode of execution are set forth, above embodiment's explanation just is used for helping to understand method of the present utility model and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present utility model, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model.To change of the present utility model and improvement will be possible, and can not exceed design and the scope that accessory claim can be stipulated.

Claims (4)

1. the silencing apparatus of a diesel generating set, diesel generating set (10) is placed in indoor that body of wall (1) surrounds, the base of diesel generating set (10) has vibration damper (11), in the indoor air channel (9) that also is provided with, air channel (9) is divided into air inlet duct (4) and air exhaust channel (5), the intake grill in air channel (9) and exhaust port are separately positioned on the both sides of body of wall (1), on body of wall (1), also be provided with compound soundproof door (3), it is characterized in that: described air channel (9) are S shape, in air inlet duct (4), be provided with the air intake silencing apparatus (6) that the air intake silencer element combines, be provided with the air draft silencing apparatus (8) that the air draft silencer element combines in air exhaust channel (5), pipeline connects an exhaust silencer (7) at diesel generating set (10) exhaust pipe mouth place.
2. the silencing apparatus of a kind of diesel generating set according to claim 1, it is characterized in that: the inwall of body of wall (1) is provided with sound absorbent (2).
3. the silencing apparatus of a kind of diesel generating set according to claim 1 is characterized in that: described body of wall (1) mainly is made of the metal perforated plate and the inner fiber sound-absorbing material body of outside.
4. the silencing apparatus of a kind of diesel generating set according to claim 1, it is characterized in that: diesel generating set (10) places the side away from intake grill, and its unit blower fan cooler is near exhaust port.
CN2010201667113U 2010-04-22 2010-04-22 Silencing device of diesel generating set Expired - Fee Related CN201650452U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010201667113U CN201650452U (en) 2010-04-22 2010-04-22 Silencing device of diesel generating set

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010201667113U CN201650452U (en) 2010-04-22 2010-04-22 Silencing device of diesel generating set

Publications (1)

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CN201650452U true CN201650452U (en) 2010-11-24

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102709823A (en) * 2012-06-12 2012-10-03 上海电力修造总厂有限公司 Sound-insulation ventilation system for transformer substation
CN103021399A (en) * 2012-11-21 2013-04-03 华为技术有限公司 Sound-proof device and electronic equipment
CN103711338A (en) * 2013-12-21 2014-04-09 洛阳星光发电设备有限公司 Ultra-silent diesel generating set machine room and noise control method
CN105298930A (en) * 2014-06-12 2016-02-03 厦门嘉达声学技术有限公司 Silencing structure for draught fan air outlet
CN105459808A (en) * 2014-09-25 2016-04-06 徐工集团工程机械股份有限公司 Power compartment air duct structure and engineering vehicle
CN105737358A (en) * 2014-12-10 2016-07-06 宋继萍 Ventilating and sound attenuating system for sound attenuating chamber
CN107084044A (en) * 2017-06-19 2017-08-22 沈阳航天新光集团有限公司 A kind of high power density noise-reduced diesel generator
CN107339155A (en) * 2017-06-19 2017-11-10 沈阳航天新光集团有限公司 A kind of high power density noise-reduced diesel generator
CN108194195A (en) * 2017-12-21 2018-06-22 谢萍萍 A kind of generator protection system with alarm feedback function for water generating

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102709823A (en) * 2012-06-12 2012-10-03 上海电力修造总厂有限公司 Sound-insulation ventilation system for transformer substation
CN102709823B (en) * 2012-06-12 2015-03-04 上海电力修造总厂有限公司 Sound-insulation ventilation system for transformer substation
CN103021399A (en) * 2012-11-21 2013-04-03 华为技术有限公司 Sound-proof device and electronic equipment
CN103021399B (en) * 2012-11-21 2015-11-25 华为技术有限公司 A kind of sound arrester and electronic equipment
CN103711338A (en) * 2013-12-21 2014-04-09 洛阳星光发电设备有限公司 Ultra-silent diesel generating set machine room and noise control method
CN103711338B (en) * 2013-12-21 2016-01-13 洛阳星光发电设备有限公司 A kind of super-silent diesel generating set machine room noise control method
CN105298930A (en) * 2014-06-12 2016-02-03 厦门嘉达声学技术有限公司 Silencing structure for draught fan air outlet
CN105459808A (en) * 2014-09-25 2016-04-06 徐工集团工程机械股份有限公司 Power compartment air duct structure and engineering vehicle
CN105737358A (en) * 2014-12-10 2016-07-06 宋继萍 Ventilating and sound attenuating system for sound attenuating chamber
CN107084044A (en) * 2017-06-19 2017-08-22 沈阳航天新光集团有限公司 A kind of high power density noise-reduced diesel generator
CN107339155A (en) * 2017-06-19 2017-11-10 沈阳航天新光集团有限公司 A kind of high power density noise-reduced diesel generator
CN108194195A (en) * 2017-12-21 2018-06-22 谢萍萍 A kind of generator protection system with alarm feedback function for water generating

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Granted publication date: 20101124

Termination date: 20130422