CN2918755Y - Generating set mute box apparatus - Google Patents

Generating set mute box apparatus Download PDF

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Publication number
CN2918755Y
CN2918755Y CN 200620023093 CN200620023093U CN2918755Y CN 2918755 Y CN2918755 Y CN 2918755Y CN 200620023093 CN200620023093 CN 200620023093 CN 200620023093 U CN200620023093 U CN 200620023093U CN 2918755 Y CN2918755 Y CN 2918755Y
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CN
China
Prior art keywords
casing
silencing apparatus
generator set
air intake
box
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
CN 200620023093
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Chinese (zh)
Inventor
张乃龙
杨文通
田红莉
刘志峰
孙明朗
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.)
Beijing University of Technology
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Beijing University of Technology
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Publication date
Application filed by Beijing University of Technology filed Critical Beijing University of Technology
Priority to CN 200620023093 priority Critical patent/CN2918755Y/en
Application granted granted Critical
Publication of CN2918755Y publication Critical patent/CN2918755Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a mute box device for a generating set, belonging to the generating noise control field. The device mainly comprises a box (1), a plurality of air inlet mufflers (3), an exhaust muffler (4) of an internal combustion engine and an air exhaust port muffler (7), wherein the whole generating set is arranged in the box (1); two air inlet mufflers (3) are positioned at the front part of the box (1), which are positioned at the two sides of a generator and a control cabinet, supported by a base, with the upper edge closely next to the top of the box (1); the air exhaust port muffler (7) can be closely filled in the tail part of the box (1), with the width and the height equal to the width and the height of the inner wall section of the box, and is a cuboid structure; the exhaust muffler (4) of an internal combustion engine is arranged on a smoke exhaust pipe of the generating set and is positioned at the exterior of the box (1). The utility model has the advantages that the structure is compact; the box volume is made as small as possible; the cost is low; the heat dissipation performance is good and the noise can be reduced more effectively and the noise in the short distance range can be reduced under 75dB.

Description

The quiet case apparatus of generator set
Technical field
The utility model relates to the quiet case apparatus of a kind of generator set, belongs to the generator set field of noise control.
Background technique
In today that up-to-dateness improves day by day, generator set is as the back-up power of industry equipment, for guaranteeing that professional normal operation has played important effect, flourish along with computer network and communication career particularly, this equipment also strengthens day by day for the requirement of power supply reliability, because there is the problem of power supply duration in ups power, so just make generator set that wide development space has been arranged in people's productive life.Not only indispensable in mine and factory, but also appear near densely populated telecommunications, the telephone office.But generator set is when facilitating for people, and also because problems affect such as the noise that unit self exists, discharging our living environment, especially the noise of unit directly affects people's work and life.
Currently marketed quiet case kind is more, but generally adopts traditional noise elimination, sound absorption structure at the product of large-scale unit, can not effectively eliminate equipment acoustic noise.And it is little for increasing its vent area of noise reduction, the equipment back pressure causes power loss bigger greatly, and the level of unit overall noise control is not high, can not satisfy the requirement of current environment standard, need carry out complicated secondary noise elimination design well in the demanding place of noise standard, increase whole input cost.
The model utility content
The purpose of this utility model has been to overcome the defective of existing generator set noise control aspect, provides a kind of generator set quiet case apparatus, this apparatus structure compactness, and perfect heat-dissipating can effectively be controlled in closely and reduce noise.
For achieving the above object, the technical solution adopted in the utility model is as Fig. 1~shown in Figure 3.This device mainly includes casing 1, air intake silencing apparatus 3, exhaust silencer for internal-combustion engine 4, exhaust port silencing apparatus 7; Wherein, the whole generating unit is arranged on the inside of casing 1, and air intake silencing apparatus 3 is positioned at the front portion of casing 1, has two, lays respectively at the both sides of generator 12 and control cabinet 11, by base support, and the top of the adjacent casing 1 in upper edge; Exhaust port silencing apparatus 7 can closely be filled in the afterbody of casing 1, and its sectional shape and cabinet wall sectional shape adapt; Be provided with suspended absorber 5 between exhaust port silencing apparatus 7 and cooling water tank 16, this sound absorbent is made by sound-absorbing material; Exhaust silencer for internal-combustion engine 4 is installed on the smoke-ejecting pipe of generator set, is positioned at the outside of casing 1, is provided with maintenance operation door 6 in the both sides of casing 1, the air intake venetian blind 2 of these adjacent both sides of operation door; Be provided with controlled observation window 9 in the position of the forefront of casing 1, corresponding control cabinet.
Outer installment at exhaust port silencing apparatus 7 has air draft venetian blind 8, and the outer installment of air intake silencing apparatus 3 has air intake venetian blind 2.
Described air intake silencing apparatus 3, exhaust port silencing apparatus 7, suspended absorber 5 all are to be made of anechoic sheet 10, anechoic sheet 10 is made of the threepayer structure, biside plate is nonmetal perforated plate, the centre is a metal foil, be filled with sound-absorbing material between plate, sound-absorbing material is non-metallic fiber porous material or goods.
The employing of described casing 1 be the structure of plate-air-plate, in air layer, fill out and be placed with sound-absorbing porous material.
Described air intake venetian blind 2, air draft venetian blind 8 are the stormproof louvre window.
The anechoic sheet 10 of described composition exhaust port silencing apparatus 7 is shaped as folded plate type, is in order to increase the length of sound absorption, can to avoid sound directly to spread out of on the other hand on the one hand.
Described exhaust port silencing apparatus 7 is a rectangular structure, wide and high wide and high in the cabinet wall cross section.
Described controlled observation window 9 is to have a double glazing on the little control gate, is used to the runnability of operating control cabinet and watching unit.
The utility model for effectively controlling various noises, adopts control techniques such as sound insulation, sound absorption and noise elimination respectively the noise of diverse location to be controlled, handled at the distribution of generator set main noise source and the characteristic of noise:
1) air intake noise-reduction control system: form by the air intake venetian blind 2 and the air intake silencing apparatus 3 that are provided with near generator set front end two side.Air intake is successively by entering in the quiet case behind air intake venetian blind 2 and the air intake silencing apparatus 3.Can suppress the outside propagation of equipment acoustic noise like this, make unit reach the outer noise of quiet case and reduce.
2) smoke evacuation noise-reduction control system: exhaust silencer for internal-combustion engine 4 is installed on internal-combustion engine vent-pipe, can be effectively reduced exhaust sound.Native system is actual to be to adopt the two-stage exhaust silencer, and first order exhaust silencer is the silencing apparatus of generator configuration itself, and second level exhaust silencer is newly-installed exhaust silencer for internal-combustion engine 4, and behind the two-stage silencing apparatus, exhaust sound can reduce about 30dB.
3) air draft noise-reduction control system: because exhaust outlet noise complexity and noise level height, and for forcing air draft, noise is easy to external radiation, so adopt length to form greater than the exhaust port silencing apparatus 7 and the suspended absorber 5 of air intake silencing apparatus 3.Sound wave is impinged perpendicularly on the suspended absorber 4, help the absorption of energy, and make that space forms reactive muffler before and after it, more effective like this suppressed noise to external radiation.
4) sound insulation and sound absorption control system: because casing 1 employing is plate-air-plate structure, and in air layer, fill out and put sound-absorbing porous material, so this design can absorb effectively, barrier noise to external radiation, spread out of from door, window and space in order to reduce noise, special encapsulation process is carried out at these positions.
The beneficial effects of the utility model: compact structure, perfect heat-dissipating can effectively be controlled in closely and reduce noise, noise is reduced to below the 75db, reach the National Environmental required standard, little to the influence of surrounding environment, can be widely used in the demanding place of environmental protection condition.
Description of drawings
Fig. 1: the quiet case apparatus schematic side view of generator set
Fig. 2: the quiet case apparatus schematic top plan view of generator set
Fig. 3: schematic representation is looked on the quiet case apparatus of a generator set left side
Among the figure: 1, casing, 2, the air intake venetian blind, 3, the air intake silencing apparatus, 4, exhaust silencer for internal-combustion engine, 5, suspended absorber, 6, the maintenance operation door, 7, exhaust port silencing apparatus, 8, the air draft venetian blind, 9, the controlled observation window, 10, anechoic sheet, 11, cabinet base, 12, control cabinet, 13, generator set, 14, internal-combustion engine, 15, cooling fan, 16, cooling water tank.
Embodiment
As shown in Figure 1, 2, 3, on medium-sized diesel generating set, use the quiet case apparatus of the utility model generator set.The quiet case apparatus of this generator set comprises: casing 1, air intake venetian blind 2, air intake silencing apparatus 3, exhaust silencer for internal-combustion engine 4, suspended absorber 5, maintenance operation door 6, exhaust port silencing apparatus 7, air draft venetian blind 8, controlled observation window 9.
The casing 1 of this device is a container type, and casing 1 adopts compound sound insulationg board, and outer surface is a steel plate, and internal surface is nonmetal perforated plate, and inner filling rock wool is as sound-absorbing material.The length and width height of casing is respectively 5760mm, 2620mm, 2200mm.Exhaust port silencing apparatus 7 is positioned at the afterbody of casing, and has filled the afterbody of whole box body, and the length and width height is respectively 2000mm, 2620mm, 2200mm.Air draft venetian blind 2 is positioned at the afterbody of casing 1, seals the tail end mouth of casing, and wide is 2620mm, the high 2200mm of being.Suspended absorber 5 is parallel to air draft silencing apparatus 7 between cooling water tank and exhaust port silencing apparatus 7, be embedded in base 11 grooves, and both sides are 300mm apart from cabinet wall, and the top is 300mm apart from the casing ceiling board.Two intake grill silencing apparatuss 3 lay respectively at the both sides of the front portion of casing, and symmetry is placed, and length is 400mm, the air intake venetian blind 2 of the adjacent casing of a side, and opposite side is 100mm apart from control cabinet.Exhaust silencer for internal-combustion engine 4 is installed on the silencing apparatus that the generator set outlet pipe carries.Two maintenance operation doors 6 lay respectively at the both sides at casing middle part, adjacent air intake venetian blind 2.Controlled observation window 9 is positioned at casing foremost, described controlled observation window 9 is to have a double glazing on the little control gate, the effect of control gate is for convenience control cabinet to be operated, and double glazing is the operation conditions of watching unit at any time for convenience of the staff.
Air intake silencing apparatus 3 all adopts multichannel folded plate type dissipative muffler with exhaust port silencing apparatus 7, wherein the thickness of anechoic sheet 10 is got 80-100mm, channel width is got 120-150mm, each anechoic sheet is made up of three layers of dividing plate, both sides are nonmetal perforated plate, the centre is a sheet metal, filling porous property sound-absorbing material in the air layer, and acoustic absorptivity is 0.68;
The surfacing of suspended absorber 5 is a perforated metal panel, and the sound-absorbing material that the porous material of nonmetal sound absorption fiber is made is equipped with in inside, and acoustic absorptivity is 0.68.
Exhaust silencer for internal-combustion engine 4 is to add a reactive muffler again to form two-stage expanssion type (resistance) silencing apparatus, expansion coefficient m=9 on the basis of the silencing apparatus that generator set carries.
Maintenance operation door 6 is a dual-door, has so not only guaranteed defening effect but also has made things convenient for device maintenance;
Install with being convenient to for the air output that guarantees generator set, adopt two air intake silencing apparatuss 3, symmetry is positioned over the both sides of control cabinet and generator set.In order to reduce the air intake resistance, the air intake silencing apparatus adopts piece insertion type to arrange.What air intake silencing apparatus 3 adopted is the folded plate type dissipative muffler, when utilizing sound wave to propagate in sound-absorbing material, it dissipates because of being subjected to friction that acoustic energy is converted into heat energy, and because the existence at turning makes the noise can not be directly by the noise elimination passage, thereby effectively improve the noise elimination effect, reach the purpose of noise elimination.Install air intake venetian blind 2 additional in the outlet port of air intake silencing apparatus 3 in addition and avoid rainwater to enter, it is carried out effectively protection.
This example has been made finished product, and by finished product test, its noise can be reduced to below the 75dB.
The utility model adopts different control measure respectively at the noise behavior of diverse location, has reached the standard that requires of National Environmental.Influence to surrounding environment is little, can be widely used in the place high to environmental protection condition.

Claims (8)

1, the quiet case apparatus of generator set is characterized in that: this device mainly includes casing (1), air intake silencing apparatus (3), exhaust silencer for internal-combustion engine (4), exhaust port silencing apparatus (7); Wherein, the whole generating unit is arranged on the inside of casing (1), and air intake silencing apparatus (3) is positioned at the front portion of casing (1), has two, lays respectively at the both sides of generator (12) and control cabinet (11), by base support, and the top of the adjacent casing in upper edge (1); Exhaust port silencing apparatus (7) can closely be filled in the afterbody of casing (1), and its sectional shape and cabinet wall sectional shape adapt; Be provided with suspended absorber (5) between exhaust port silencing apparatus (7) and cooling water tank (16), this sound absorbent is made by sound-absorbing material; Exhaust silencer for internal-combustion engine (4) is installed on the smoke-ejecting pipe of generator set, is positioned at the outside of casing (1), is provided with maintenance operation door (6) in the both sides of casing (1), the air intake venetian blind (2) of these adjacent both sides of operation door; Be provided with controlled observation window (9) in the position of the forefront of casing (1), corresponding control cabinet.
2, the quiet case apparatus of generator set according to claim 1 is characterized in that: the outer installment at exhaust port silencing apparatus (7) has air draft venetian blind (8), and the outer installment of air intake silencing apparatus (3) has air intake venetian blind (2).
3, according to claim 1 or the quiet case apparatus of the described generator set of claim 4, it is characterized in that: described air intake silencing apparatus (3), exhaust port silencing apparatus (7), suspended absorber (5) all are to be made of anechoic sheet (10), anechoic sheet (10) is made of the threepayer structure, biside plate is nonmetal perforated plate, the centre is a metal foil, be filled with sound-absorbing material between plate, sound-absorbing material is non-metallic fiber porous material or goods.
4, the quiet case apparatus of generator set according to claim 1 is characterized in that: what described casing (1) adopted is the structure of plate-air-plate, fills out in air layer and is placed with sound-absorbing porous material.
5, the quiet case apparatus of generator set according to claim 1 is characterized in that: described air intake venetian blind (2), air draft venetian blind (8) are the stormproof louvre window.
6, according to claim 1 or the quiet case apparatus of the described generator set of claim 6, it is characterized in that: the anechoic sheet (10) of described composition exhaust port silencing apparatus (7) is shaped as folded plate type, be in order to increase the length of sound absorption, can to avoid sound directly to spread out of on the other hand on the one hand.
7, the quiet case apparatus of generator set according to claim 1 is characterized in that: described exhaust port silencing apparatus (7) is a rectangular structure, wide and high wide and high in the cabinet wall cross section.
8, the quiet case apparatus of generator set according to claim 1 is characterized in that: described controlled observation window (9) is to have a double glazing on the little control gate, is used to the runnability of operating control cabinet and watching unit.
CN 200620023093 2006-06-16 2006-06-16 Generating set mute box apparatus Expired - Fee Related CN2918755Y (en)

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Application Number Priority Date Filing Date Title
CN 200620023093 CN2918755Y (en) 2006-06-16 2006-06-16 Generating set mute box apparatus

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Application Number Priority Date Filing Date Title
CN 200620023093 CN2918755Y (en) 2006-06-16 2006-06-16 Generating set mute box apparatus

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CN2918755Y true CN2918755Y (en) 2007-07-04

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102611236A (en) * 2012-03-08 2012-07-25 雅柯斯电力科技(中国)有限公司 Air intake cover
CN104882137A (en) * 2015-04-16 2015-09-02 北京市燃气集团有限责任公司 Skid-mounted emission noise reduction device and manufacturing method thereof
CN104912657A (en) * 2015-05-20 2015-09-16 四川省辛普森动力设备有限公司 Container power station
CN106499508A (en) * 2016-12-28 2017-03-15 雷天动力设备(苏州)有限公司 A kind of container type silent box structure
CN107630749A (en) * 2017-10-26 2018-01-26 江苏东方康弛机电科技有限公司 A kind of sound attenuated enclosure of diesel generation sets
CN110500182A (en) * 2019-08-29 2019-11-26 重庆隆鑫通航发动机制造有限公司 Generating set
US10557402B2 (en) * 2013-03-15 2020-02-11 Kohler Co. Noise suppression systems
CN110893838A (en) * 2019-12-12 2020-03-20 中国铁道科学研究院集团有限公司 Integrated noise reduction valve box suitable for hump vehicle speed reducer
CN111425296A (en) * 2020-04-21 2020-07-17 河南柴油机重工有限责任公司 Symmetrically-arranged double-generator-set container power station
CN112034943A (en) * 2020-08-27 2020-12-04 徐美霞 Low-noise case for computer server
CN112360628A (en) * 2020-11-10 2021-02-12 广州威能机电有限公司 Mute generator set

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102611236A (en) * 2012-03-08 2012-07-25 雅柯斯电力科技(中国)有限公司 Air intake cover
CN102611236B (en) * 2012-03-08 2014-04-23 雅柯斯电力科技(中国)有限公司 Air intake cover
US10557402B2 (en) * 2013-03-15 2020-02-11 Kohler Co. Noise suppression systems
CN104882137A (en) * 2015-04-16 2015-09-02 北京市燃气集团有限责任公司 Skid-mounted emission noise reduction device and manufacturing method thereof
CN104912657A (en) * 2015-05-20 2015-09-16 四川省辛普森动力设备有限公司 Container power station
CN106499508A (en) * 2016-12-28 2017-03-15 雷天动力设备(苏州)有限公司 A kind of container type silent box structure
CN107630749A (en) * 2017-10-26 2018-01-26 江苏东方康弛机电科技有限公司 A kind of sound attenuated enclosure of diesel generation sets
CN110500182A (en) * 2019-08-29 2019-11-26 重庆隆鑫通航发动机制造有限公司 Generating set
CN110893838A (en) * 2019-12-12 2020-03-20 中国铁道科学研究院集团有限公司 Integrated noise reduction valve box suitable for hump vehicle speed reducer
CN111425296A (en) * 2020-04-21 2020-07-17 河南柴油机重工有限责任公司 Symmetrically-arranged double-generator-set container power station
CN112034943A (en) * 2020-08-27 2020-12-04 徐美霞 Low-noise case for computer server
CN112360628A (en) * 2020-11-10 2021-02-12 广州威能机电有限公司 Mute generator set

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C19 Lapse of patent right due to non-payment of the annual fee
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