CN107630749A - A kind of sound attenuated enclosure of diesel generation sets - Google Patents
A kind of sound attenuated enclosure of diesel generation sets Download PDFInfo
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- CN107630749A CN107630749A CN201711018756.9A CN201711018756A CN107630749A CN 107630749 A CN107630749 A CN 107630749A CN 201711018756 A CN201711018756 A CN 201711018756A CN 107630749 A CN107630749 A CN 107630749A
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- 230000002238 attenuated effect Effects 0.000 title claims abstract 7
- 239000011490 mineral wool Substances 0.000 claims abstract description 23
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 19
- 239000010959 steel Substances 0.000 claims abstract description 19
- 238000013016 damping Methods 0.000 claims abstract 9
- 230000003584 silencer Effects 0.000 claims abstract 5
- 239000000203 mixture Substances 0.000 claims abstract 2
- 239000003365 glass fiber Substances 0.000 claims description 14
- 230000009467 reduction Effects 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims 2
- 239000002283 diesel fuel Substances 0.000 claims 1
- 239000005417 food ingredient Substances 0.000 claims 1
- 235000013324 preserved food Nutrition 0.000 claims 1
- 238000009413 insulation Methods 0.000 abstract description 11
- 238000010521 absorption reaction Methods 0.000 abstract description 3
- 230000008030 elimination Effects 0.000 abstract description 2
- 238000003379 elimination reaction Methods 0.000 abstract description 2
- 239000002131 composite material Substances 0.000 description 9
- 150000001875 compounds Chemical class 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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- Exhaust Silencers (AREA)
Abstract
Description
技术领域technical field
本发明属于一种静音箱技术领域，具体涉及一种柴油发电机组静音箱。The invention belongs to the technical field of a silent box, in particular to a silent box of a diesel generator set.
背景技术Background technique
现有的静音型柴油发动机组，由于机组本身对机组噪音指标要求较高，机组在设计和制造过程中，对机组采用箱体密封和吸音棉吸音系列工艺，由于柴油机排气系统安装在箱体内，造成箱体内温度升高和机组的功率下降，对机组效率质量产生了一定影响。For the existing silent diesel engine unit, because the unit itself has high requirements on the noise index of the unit, during the design and manufacturing process of the unit, a series of processes of box sealing and sound-absorbing cotton are used for the unit. Since the exhaust system of the diesel engine is installed in the box , causing the temperature in the box to rise and the power of the unit to decrease, which has a certain impact on the efficiency and quality of the unit.
传统机组框架均为型材焊接底架，四周钣金制作外框架，通过铰链或卡接式连接。The frame of the traditional unit is a profile welded bottom frame, and the outer frame is made of sheet metal around it, which is connected by hinges or clips.
发明内容Contents of the invention
本发明所要解决的技术问题是针对上述现有技术的不足提供一种柴油发电机组静音箱，其针对不同区域内噪声特点分别采用隔声、吸声和消声等控制措施。The technical problem to be solved by the present invention is to provide a silent box for a diesel generator set, which adopts control measures such as sound insulation, sound absorption and noise reduction according to the noise characteristics in different areas.
为实现上述技术目的，本发明采取的技术方案为：For realizing above-mentioned technical purpose, the technical scheme that the present invention takes is:
一种柴油发电机组静音箱，其中：包括减震底座、隔声板、进气消声器、箱体、阻抗复合消声器、排气消声器和柴油发电机组，所述的箱体固定安装在减震底座的顶面上，所述的柴油发电机组固定安装在减震底座的顶面上且柴油发电机组位于箱体内，所述的箱体的左侧面和右侧面上都安装有隔声板，所述的进气消声器固定安装在减震底座的顶面上且进气消声器位于柴油发电机组的右侧，所述的排气消声器固定安装在减震底座的顶面上且排气消声器位于柴油发电机组的左侧，所述的阻抗复合消声器通过管路与箱体内的柴油发电机组出气口连接，所述的隔声板由防雨百叶窗、第一钢板、第一岩棉和第一穿孔板组成，所述的第一钢板固定安装在防雨百叶窗的右侧面上，所述的第一岩棉固定安装在第一钢板的右侧面上，所述的第一穿孔板固定安装在第一岩棉的右侧面上。A silent box for a diesel generator set, which includes a shock-absorbing base, a sound insulation board, an intake muffler, a box body, an impedance composite muffler, an exhaust muffler and a diesel generator set, and the box body is fixedly installed on the side of the shock-absorbing base On the top surface, the diesel generator set is fixedly installed on the top surface of the shock-absorbing base and the diesel generator set is located in the box, and sound insulation panels are installed on the left side and the right side of the box body, so The above-mentioned intake muffler is fixedly installed on the top surface of the shock-absorbing base and the intake muffler is located on the right side of the diesel generator set, and the described exhaust muffler is fixedly installed on the top surface of the shock-absorbing base and the exhaust muffler is located on the On the left side of the unit, the impedance composite muffler is connected to the gas outlet of the diesel generator set in the box through a pipeline, and the sound insulation board is composed of rain-proof louvers, the first steel plate, the first rock wool and the first perforated plate , the first steel plate is fixedly installed on the right side of the rainproof shutter, the first rock wool is fixedly installed on the right side of the first steel plate, and the first perforated plate is fixedly installed on the first Rock wool on the right side.
为优化上述技术方案，采取的具体措施还包括：In order to optimize the above technical solutions, the specific measures taken also include:
上述的进气消声器由第二穿孔板、第二岩棉和第二钢板组成，所述的第二岩棉固定安装在第二穿孔板的右侧面上，所述的第二钢板固定安装在第二岩棉的右侧面上。The above air intake muffler is composed of a second perforated plate, a second rock wool and a second steel plate, the second rock wool is fixedly installed on the right side of the second perforated plate, and the second steel plate is fixedly installed on the The right side of the second rock wool.
上述的阻抗复合消声器由法兰、外壳、穿孔筒、抗性消声管、玻璃纤维填充筒和阻性消声筒组成，所述的法兰固定焊接安装在外壳的外壁上且法兰轴线与外壳轴线垂直，所述的玻璃纤维填充筒安装在外壳的内孔里，所述的穿孔筒安装在玻璃纤维填充筒的中心孔里，所述的阻性消声筒安装在穿孔筒的中心孔里，所述的抗性消声管安装在玻璃纤维填充筒的中心孔里。The above-mentioned impedance compound muffler is composed of a flange, a casing, a perforated cylinder, a resistant muffler pipe, a glass fiber filled cylinder and a resistive muffler cylinder. The flange is fixedly welded and installed on the outer wall of the housing, and the flange axis is The axis of the shell is vertical, the glass fiber filled cylinder is installed in the inner hole of the shell, the perforated cylinder is installed in the center hole of the glass fiber filled cylinder, and the resistive muffler is installed in the center hole of the perforated cylinder Here, the resistant muffler pipe is installed in the center hole of the glass fiber filled cylinder.
上述的箱体的内壁上安装有吸音板。A sound-absorbing panel is installed on the inner wall of the above-mentioned box body.
上述的第一穿孔板设有多条波浪形凹槽。The above-mentioned first perforated plate is provided with a plurality of wave-shaped grooves.
本发明根据箱体基本结构和噪声的分布及其产生部位，把静音箱内空间主要分为四大噪声区域以方便噪声的控制，分别为进气噪声区、排气噪声区、内燃机排气噪声区和箱体机舱噪声区。根据进、排气通道要求插入损失的不同，进风口消声器设计长为400mm，出风口由于噪声较复杂且噪声级高消声器设计长为2000mm；内燃机排气口由于噪声级较高，为增大插入损失，在原有消声器基础上安装一新阻抗复合消声器形成二级消声器，各控制分区分别采取相应的噪声控制技术，综合控制使箱体外噪声。According to the basic structure of the cabinet and the distribution of the noise and its generating parts, the present invention divides the interior space of the mute box into four major noise areas to facilitate the control of the noise, namely, the intake noise area, the exhaust noise area, and the exhaust noise of the internal combustion engine. area and cabin noise area. According to the different insertion loss requirements of the inlet and exhaust passages, the design length of the muffler at the air inlet is 400mm, and the design length of the muffler at the air outlet is 2000mm due to the complicated noise and high noise level; In order to reduce the loss, a new impedance composite muffler is installed on the basis of the original muffler to form a second-level muffler, and each control area adopts corresponding noise control technology to comprehensively control the noise outside the box.
阻抗复合消声器采用双层穿孔板加玻璃纤维内衬材料阻抗复合型消声器。Impedance composite muffler adopts double-layer perforated plate and glass fiber lining material impedance composite muffler.
本发明的优点在于以下几点：针对不同区域内噪声特点分别采用隔声、吸声和消声等控制措施；箱体尺寸受限制的条件下，利用有限的空间实现了较大的降噪量，取得了良好效果；采用的阻抗复合式消声器兼有阻性消声器和抗性消声器特点，静音效果好。The advantages of the present invention lie in the following points: control measures such as sound insulation, sound absorption and noise elimination are adopted respectively according to the noise characteristics in different areas; under the condition of limited box size, a large amount of noise reduction is realized by using limited space , and achieved good results; the impedance composite muffler adopted has the characteristics of both resistive muffler and resistive muffler, and the mute effect is good.
附图说明Description of drawings
图1是本发明的结构示意图；Fig. 1 is a structural representation of the present invention;
图2是本发明隔声板的结构示意图；Fig. 2 is the structural representation of sound insulation board of the present invention;
图3是本发明第一穿孔板的结构示意图；Fig. 3 is a schematic structural view of the first perforated plate of the present invention;
图4是本发明进气消声器的结构示意图；Fig. 4 is the structural representation of intake muffler of the present invention;
图5是本发明阻抗复合消声器的结构示意图。Fig. 5 is a structural schematic diagram of the impedance compound muffler of the present invention.
其中的附图标记为：减震底座1、隔声板2、防雨百叶窗21、第一钢板22、第一岩棉23、第一穿孔板24、进气消声器3、第二穿孔板31、第二岩棉32、第二钢板33、箱体4、阻抗复合消声器5、法兰51、外壳52、穿孔筒53、抗性消声管54、玻璃纤维填充筒55、阻性消声筒56、排气消声器6、柴油发电机组7。Wherein the reference numerals are: shock absorbing base 1, sound insulation board 2, rainproof louver 21, first steel plate 22, first rock wool 23, first perforated plate 24, air intake muffler 3, second perforated plate 31, Second rock wool 32, second steel plate 33, box body 4, impedance composite muffler 5, flange 51, shell 52, perforated cylinder 53, resistant muffler tube 54, glass fiber filled cylinder 55, resistive muffler cylinder 56 , Exhaust muffler 6, diesel generator set 7.
具体实施方式detailed description
下面结合附图对本发明的具体实施方式作出进一步说明：The specific embodiment of the present invention is further described below in conjunction with accompanying drawing:
一种柴油发电机组静音箱，其中：包括减震底座1、隔声板2、进气消声器3、箱体4、阻抗复合消声器5、排气消声器6和柴油发电机组7，所述的箱体4固定安装在减震底座1的顶面上，所述的柴油发电机组7固定安装在减震底座1的顶面上且柴油发电机组7位于箱体4内，所述的箱体4的左侧面和右侧面上都安装有隔声板2，所述的进气消声器3固定安装在减震底座1的顶面上且进气消声器3位于柴油发电机组7的右侧，所述的排气消声器6固定安装在减震底座1的顶面上且排气消声器6位于柴油发电机组7的左侧，所述的阻抗复合消声器5通过管路与箱体4内的柴油发电机组7出气口连接，所述的隔声板2由防雨百叶窗21、第一钢板22、第一岩棉23和第一穿孔板24组成，所述的第一钢板22固定安装在防雨百叶窗21的右侧面上，所述的第一岩棉23固定安装在第一钢板22的右侧面上，所述的第一穿孔板24固定安装在第一岩棉23的右侧面上。A silent box for a diesel generator set, including: a shock absorbing base 1, a sound insulation board 2, an intake muffler 3, a box body 4, an impedance composite muffler 5, an exhaust muffler 6 and a diesel generator set 7, the box body 4 is fixedly installed on the top surface of the shock-absorbing base 1, the diesel generator set 7 is fixedly installed on the top surface of the shock-absorbing base 1 and the diesel generator set 7 is located in the box body 4, and the left side of the box body 4 The sound insulation board 2 is installed on the side and the right side, and the intake muffler 3 is fixedly installed on the top surface of the shock-absorbing base 1 and the intake muffler 3 is located on the right side of the diesel generator set 7. The exhaust muffler 6 is fixedly installed on the top surface of the shock-absorbing base 1 and the exhaust muffler 6 is located on the left side of the diesel generator set 7. The air port is connected, and the sound insulation board 2 is composed of a rainproof louver 21, a first steel plate 22, a first rock wool 23 and a first perforated plate 24, and the first steel plate 22 is fixedly installed on the right side of the rainproof louver 21. On the side, the first rock wool 23 is fixedly installed on the right side of the first steel plate 22 , and the first perforated plate 24 is fixedly installed on the right side of the first rock wool 23 .
实施例中，进气消声器3由第二穿孔板31、第二岩棉32和第二钢板33组成，所述的第二岩棉32固定安装在第二穿孔板31的右侧面上，所述的第二钢板33固定安装在第二岩棉32的右侧面上。In the embodiment, the intake muffler 3 is composed of a second perforated plate 31, a second rock wool 32 and a second steel plate 33, and the second rock wool 32 is fixedly installed on the right side of the second perforated plate 31, so The second steel plate 33 described above is fixedly installed on the right side of the second rock wool 32 .
实施例中，阻抗复合消声器5由法兰51、外壳52、穿孔筒53、抗性消声管54、玻璃纤维填充筒55和阻性消声筒56组成，所述的法兰51固定焊接安装在外壳52的外壁上且法兰51轴线与外壳52轴线垂直，所述的玻璃纤维填充筒55安装在外壳52的内孔里，所述的穿孔筒53安装在玻璃纤维填充筒55的中心孔里，所述的阻性消声筒56安装在穿孔筒53的中心孔里，所述的抗性消声管54安装在玻璃纤维填充筒55的中心孔里。In the embodiment, the impedance composite muffler 5 is composed of a flange 51, a shell 52, a perforated cylinder 53, a resistant muffler pipe 54, a glass fiber filled cylinder 55 and a resistive muffler cylinder 56, and the flange 51 is fixedly welded and installed On the outer wall of the shell 52 and the axis of the flange 51 is perpendicular to the axis of the shell 52, the glass fiber filling cylinder 55 is installed in the inner hole of the shell 52, and the perforated cylinder 53 is installed in the central hole of the glass fiber filling cylinder 55 Here, the resistive muffler tube 56 is installed in the central hole of the perforated tube 53, and the resistive muffler tube 54 is installed in the central hole of the glass fiber filled tube 55.
实施例中，箱体4的内壁上安装有吸音板。In the embodiment, a sound-absorbing panel is installed on the inner wall of the box body 4 .
实施例中，第一穿孔板24设有多条波浪形凹槽。In an embodiment, the first perforated plate 24 is provided with a plurality of wave-shaped grooves.
以上仅是本发明的优选实施方式，本发明的保护范围并不仅局限于上述实施例，凡属于本发明思路下的技术方案均属于本发明的保护范围。应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理前提下的若干改进和润饰，应视为本发明的保护范围。The above are only preferred implementations of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions under the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principle of the present invention should be regarded as the protection scope of the present invention.
Claims (5)
- A kind of 1. sound attenuated enclosure of diesel generation sets, it is characterised in that：Including damping base (1), sound insulationg board (2), intake muffler (3), casing (4), impedance muffler (5), exhaust silencer (6) and diesel generating set (7), described casing (4) are solid On the top surface of damping base (1), described diesel generating set (7) is fixedly mounted on the top surface of damping base (1) for Dingan County Upper and diesel generating set (7) is located in casing (4), is fitted with insulating against sound on the left surface and right flank of described casing (4) Plate (2), described intake muffler (3) is fixedly mounted on the top surface of damping base (1) and intake muffler (3) is located at diesel oil The right side of generating set (7), described exhaust silencer (6) is fixedly mounted on the top surface of damping base (1) and exhausting silencer Device (6) is located at the left side of diesel generating set (7), and described impedance muffler (5) passes through the bavin in pipeline and casing (4) Fry dried food ingredients group of motors (7) gas outlet connects, and described sound insulationg board (2) is by Rainproof louver window (21), the first steel plate (22), the first rock wool (23) and the first perforated plate (24) composition, described the first steel plate (22) are fixedly mounted on the right flank of Rainproof louver window (21) On, described the first rock wool (23) is fixedly mounted on the right flank of the first steel plate (22), and described the first perforated plate (24) is solid Dingan County is on the right flank of the first rock wool (23).
- A kind of 2. sound attenuated enclosure of diesel generation sets according to claim 1, it is characterised in that：Described intake muffler (3) it is made up of the second perforated plate (31), the second rock wool (32) and the second steel plate (33), described the second rock wool (32) is fixedly mounted On the right flank of the second perforated plate (31), described the second steel plate (33) is fixedly mounted on the right flank of the second rock wool (32) On.
- A kind of 3. sound attenuated enclosure of diesel generation sets according to claim 1, it is characterised in that：Described impedance complex is eliminated the noise Device (5) is by flange (51), shell (52), perforated drum (53), reactive muffling pipe (54), glass fibre filling tube (55) and resistive disappears Cylinder record (56) forms, and the fixed welded and installed of described flange (51) is on the outer wall of shell (52) and flange (51) axis and shell (52) axis is vertical, and described glass fibre filling tube (55) is arranged in the endoporus of shell (52), described perforated drum (53) In the centre bore of glass fibre filling tube (55), described resistance noise reduction cylinder (56) is arranged on the center of perforated drum (53) Kong Li, described reactive muffling pipe (54) are arranged in the centre bore of glass fibre filling tube (55).
- A kind of 4. sound attenuated enclosure of diesel generation sets according to claim 1, it is characterised in that：Described casing (4) it is interior Abatvoix is installed on wall.
- A kind of 5. sound attenuated enclosure of diesel generation sets according to claim 1, it is characterised in that：The first described perforated plate (24) it is provided with a plurality of wave shape groove.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108843434A (en) * | 2018-06-08 | 2018-11-20 | 蒙城县傲尊电子科技有限公司 | A kind of automobile exhaust pipe sound-deadening and noise-reducing device |
| CN112922723A (en) * | 2021-03-22 | 2021-06-08 | 广西玉林卓越动力发电设备有限公司 | Novel high-efficient generator room air intake amortization device |
| CN118094089A (en) * | 2024-04-22 | 2024-05-28 | 泰豪科技股份有限公司 | Noise calculation method and system for container type diesel generator set |
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| CN203420783U (en) * | 2013-06-28 | 2014-02-05 | 佛山市奥力博动力工程有限公司 | Silent generator set |
| CN204984543U (en) * | 2015-10-10 | 2016-01-20 | 龙岩市海德馨汽车有限公司 | Compound silencer of impedance for supply vehicle |
| CN205677491U (en) * | 2016-06-24 | 2016-11-09 | 湖州晶晶环保科技有限公司 | A kind of sand-proof type ventilating noise-elimination shutter |
| CN207647610U (en) * | 2017-10-26 | 2018-07-24 | 江苏东方康弛机电科技有限公司 | A kind of sound attenuated enclosure of diesel generation sets |
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| CN108843434A (en) * | 2018-06-08 | 2018-11-20 | 蒙城县傲尊电子科技有限公司 | A kind of automobile exhaust pipe sound-deadening and noise-reducing device |
| CN112922723A (en) * | 2021-03-22 | 2021-06-08 | 广西玉林卓越动力发电设备有限公司 | Novel high-efficient generator room air intake amortization device |
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