CN103485891A - Rapid-assembly type silencing sound insulation cover for mobile diesel generator - Google Patents
Rapid-assembly type silencing sound insulation cover for mobile diesel generator Download PDFInfo
- Publication number
- CN103485891A CN103485891A CN201310466446.9A CN201310466446A CN103485891A CN 103485891 A CN103485891 A CN 103485891A CN 201310466446 A CN201310466446 A CN 201310466446A CN 103485891 A CN103485891 A CN 103485891A
- Authority
- CN
- China
- Prior art keywords
- sound
- sound absorption
- diesel generator
- sound insulation
- mobile diesel
- 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.)
- Granted
Links
Images
Landscapes
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The invention relates to a rapid-assembly type silencing sound insulation cover for a mobile diesel generator. The rapid-assembly type silencing sound insulation cover comprises a cover body structure formed by a sound absorption and insulation top cap, a sound absorption and insulation enclosure bulkhead and a sound absorption and insulation pedestal; a silencer is further installed outside the cover body structure, wherein the silencer is connected with the mobile diesel generator through a high-temperature exhaust passage, and the mobile diesel generator is installed inside the cover body structure. The rapid-assembly type silencing sound insulation cover for the mobile diesel generator is simple in structure and convenient to transport and install, enables the noise in a field electricity generation working environment to be low, reduces noise pollution to operators, and effectively meets the requirement for electricity generation on rainy days.
Description
Technical field
The present invention relates to the noise reduction sound insulation device, relate in particular to a kind of noise elimination of the quickly-assembling type for mobile diesel generator sound-insulating cover.
Background technique
Mobile diesel generator is one of capital equipment of field, emergency power generation, but mobile diesel generator in generating is used because the vibration equipment noise is high, distance work and rest area are near, the human settlement is produced to stronger noise pollution, not only disturb staff's conversation, also personnel's night's rest around the impact.Directly outwards heat radiation of the housing of mobile diesel generator and electric equipment simultaneously, and have out of use restriction of rainy day.
At present, form and the structure of domestic acoustic hood are varied, in order to realize noise insulation factor preferably, have by mass law and design acoustic hood, but this acoustic enclosure structure total quality is larger, and Heavy Weight, cause installations, transportation difficulty, is unfavorable for the field use.Simultaneously in order to solve the problem of generator exhaust heat radiation in sound-insulating cover, existing acoustic hood all adopts the structural type of noise reduction shutter, but this structure very easily causes leakage sound, thereby affect the defening effect of acoustic hood, design in addition in addition the intake and exhaust channel of protrusion outside acoustic hood cover wall, and the structure that blower fan is installed, larger but this structure takes up room, be unfavorable for the field transportation and use.
Summary of the invention
The applicant, for above-mentioned existing issue, is studied improvement, and a kind of delicate structure is provided, and the noise elimination of the quickly-assembling type for mobile diesel generator sound-insulating cover quick for installation, have convenient transportation, sound-deadening and noise-reducing and rainproof effective advantage.
The technical solution adopted in the present invention is as follows:
A kind of noise elimination of the quickly-assembling type for mobile diesel generator sound-insulating cover, comprise the cover body structure formed by sound absorption top cover, sound absorption leg and sound absorption pedestal, at the outside returning apparatus silencing apparatus of cover body structure, described silencing apparatus is connected with the mobile diesel generator of device in described cover body inside configuration by the high-temperature exhaust air passage.
Its further technological scheme is:
The structure of described sound absorption top cover is as follows: comprise by the polylith sheet metal and enclose and connect the rectangular configuration formed, the sound absorption wallboard is arranged in the bottom surface of described rectangular configuration, the first exhaust silencing channel and the first intake noise reduction passage are set respectively on described sound absorption wallboard, all install high-temperature resistant fan in described the first exhaust silencing channel and the first intake noise reduction passage, be positioned at the relief opening of described the first exhaust silencing channel and the intake grill of the first intake noise reduction passage and all arrange the venetian blind that keeps off the rain; On any side sheet metal, returning apparatus is for starting the fan power supply joint of high-temperature resistant fan;
The structure of described sound absorption leg is as follows: comprise by polylith sound absorption wallboard and enclose and connect the rectangular configuration formed, have the second intake noise reduction passage and the second exhaust silencing channel in the sound absorption wallboard of two of parallel each other left and right, returning apparatus draught fan in described the second intake noise reduction passage and the second exhaust silencing channel; Have the perforate be connected with suction port and the second exhaust silencing channel air outlet of described the second intake noise reduction passage on parallel front and back sound absorption wallboard each other at any one; At least device double layer glass soundproof door, power output plug and power switch on a sound absorption wallboard, returning apparatus temperature display on described double glazing soundproof door;
The structure of described sound absorption pedestal is as follows: comprise support underframe, on the top of described support underframe, the sound insulation framework is set, organize damper means more between described support underframe and sound insulation framework;
The structure of described sound absorption wallboard is as follows: comprise the first thin aluminum sheet, a side in described the first thin aluminum sheet arranges the second thin aluminum sheet, paste damping material between described the first thin aluminum sheet and the second thin aluminum sheet, a side at described the second thin aluminum sheet also arranges sheet metal, described steel-sheet one side arranges perforated plate, between described the second thin aluminum sheet and sheet metal, and fill respectively waterproof type sound absorption cotton in the confined space formed between sheet metal and perforated plate;
Described the first exhaust silencing channel, the first intake noise reduction passage, the second intake noise reduction passage and the second exhaust silencing channel are " U " shape or two " U " shape;
Vibration damper is 2 groups, each quantity of organizing vibration damper is 4, described first group of vibration damper installs respectively four bights at described support underframe, described second group of damper means is in the middle part of described support underframe, and described second group of vibration damper all runs through described sound insulation framework affixed with the quick clip that is positioned at the sound insulation framework upper by connecting screw rod;
On described sound insulation framework, boss also is set, described sound insulation framework forms by polylith sheet metal crimping, inwall at described sound insulation framework arranges respectively damping rubber and sound absorption cotton, affixed perforated plate also on described sound insulation framework, also have the circular hole run through for the high-temperature exhaust air passage on described perforated plate, the thickness of described sound insulation framework is not less than 50mm.
Beneficial effect of the present invention is as follows:
The present invention is simple in structure, easy transportation and installation, by arrange the compound sound insulationg board of the low vibration of high loss formed by thin aluminum sheet, sheet metal and damping material in the sound absorption wallboard, and make the sound absorption wallboard innerly form the elasticity resonance sound-absorbing, reduce low-frequency noise by the absorb sound combination of cotton, thin aluminum sheet, perforated plate of waterproof type, reduce the exhaust noise of the diesel generator mouth of pipe by the silencing apparatus of device, guaranteed noise reduction preferably.By " U " shape or two " U " shape silencing channel are set in sound absorption leg and sound absorption top cover, take full advantage of space, not only increased Acoustic Wave Propagation, stopped that internal noise is to external radiation simultaneously, simultaneously by adopting draught fan can effectively meet the ventilation and heat requirement of diesel generator, the inside temperature of reading by the temperature indicator intuitive and convenient, not only realized the low noise of field generating working environment, also reduce the noise pollution of noise to operator, and effectively solved the requirement of rainy day generating.
The accompanying drawing explanation
Fig. 1 is the perspective view of the present invention in positive apparent time.
Fig. 2 is the perspective view of the present invention when backsight.
The perspective view that Fig. 3 is sound absorption top cover in the present invention.
The partial schematic sectional view that Fig. 4 is sound absorption leg in the present invention.
The perspective view that Fig. 5 is noise elimination air channel in the present invention.
The perspective view that Fig. 6 is sound absorption pedestal in the present invention.
The sectional structure schematic diagram that Fig. 7 is sound absorption pedestal in the present invention.
The structural representation that Fig. 8 is sound absorption wallboard in the present invention.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described.
As shown in Figure 1, the present invention includes the cover body structure formed by sound absorption top cover 4, sound absorption leg 2 and sound absorption pedestal 1.
As shown in Figure 2 and Figure 3, the structure of sound absorption top cover is as follows: comprise by four blocks of sheet metals 21 and enclose and connect the rectangular configuration formed, sound absorption wallboard 22 is arranged in bottom surface and the side of rectangular configuration, the first exhaust silencing channel 42 and the first intake noise reduction passage 44 are set respectively on sound absorption wallboard 22, at the first exhaust silencing channel 42 and the interior high-temperature resistant fan 43 that all installs of the first intake noise reduction passage 44, be positioned at the relief opening of the first exhaust silencing channel 42 and the intake grill of the first intake noise reduction passage 44 and all arrange the venetian blind 41 that keeps off the rain; On any side sheet metal 21, returning apparatus is for starting the fan power supply joint 45 of high-temperature resistant fan.
As shown in Fig. 2, Fig. 4 and Fig. 5, the structure of sound absorption leg is as follows: comprise by 4 sound absorption wallboards 22 and enclose and connect the rectangular configuration formed, have the second intake noise reduction passage 23 and the second exhaust silencing channel (because of view relation in the sound absorption wallboard 22 of two of parallel each other left and right, not shown), returning apparatus draught fan 24 in the second intake noise reduction passage 23 and the second exhaust silencing channel; Have the perforate 25 be connected with suction port and the second exhaust silencing channel air outlet of described the second intake noise reduction passage 23 on parallel front and back sound absorption wallboard 22 each other at any one; At least device double layer glass soundproof door 26, power output plug 28 and power switch 29 on a sound absorption wallboard 22, returning apparatus temperature display 27 on double glazing soundproof door 26, arrange the temperature transducer (not shown) on the inwall of above-mentioned each sound absorption wallboard 22, this temperature transducer is connected with said temperature reality screen 27.
Above-mentioned the first exhaust silencing channel 42, the first intake noise reduction passage 44, the second intake noise reduction passage 23 and the second exhaust silencing channel are " U " shape or two " U " shape.
As shown in Figure 8, the structure of above-mentioned sound absorption wallboard is as follows: comprise the first thin aluminum sheet 91, a side in described the first thin aluminum sheet 91 arranges the second thin aluminum sheet 92, between described the first thin aluminum sheet 91 and the second thin aluminum sheet 92, pastes damping material, forms the compound sound insulationg board of the low vibration of high loss; A side at the second thin aluminum sheet 92 also arranges sheet metal 21, one side of described sheet metal 21 arranges perforated plate 8, between described the second thin aluminum sheet 92 and sheet metal 21, and fill respectively waterproof type sound absorption cotton 7 in the confined space formed between sheet metal 21 and perforated plate 8, thereby the inside that makes the sound absorption wallboard has the sqouynd absorption lowering noise effect of elasticity resonance sound-absorbing and the wideband of low frequency, there is the broadband noise of reduction.
As shown in Figure 6, Figure 7, the structure of sound absorption pedestal is as follows: comprise support underframe 11, sound insulation framework 12 is set on the top of support underframe 11, organize vibration damper 13 more and be installed between support underframe 11 and sound insulation framework 12.Vibration damper 13 is 2 groups, each quantity of organizing vibration damper 13 is 4 (or according to weight and effectiveness in vibration suppression configurations), first group of vibration damper installs respectively four bights at described support underframe 11, second group of damper means is in the middle part of support underframe 11, second group of vibration damper 13 all runs through sound insulation framework 12 affixed with the quick clip 15 that is positioned at sound insulation framework 12 tops by connecting screw rod 18, on sound insulation framework 12, boss 14 also is set, play the effect that sound blocks, also paste Stamping Steel Ribbon on boss 14, reduce the slit source sound of attachment face simultaneously.Sound insulation framework 12 forms by polylith sheet metal 21 crimpings, inwall at sound insulation framework 12 arranges respectively damping rubber and sound absorption cotton 7, affixed perforated plate 8 also on sound insulation framework 12, also have the circular hole 17 run through for high-temperature exhaust air passage 5 on perforated plate 8, the thickness suggestion of sound insulation framework 12 is not less than 50mm.
At the outside returning apparatus silencing apparatus 6 of above-mentioned cover body structure, silencing apparatus 6 is connected with the mobile diesel generator 3 installed in the cover body inside configuration by high-temperature exhaust air passage 5 and circular hole 17, in the periphery of high-temperature exhaust air passage 5, also coats thermal-protective material.
Concrete installation of the present invention and working procedure are as follows:
At first sound absorption pedestal 1 is placed in to bottom surface, fix the supporting frame of diesel generator 3 by second group of vibration damper, 13 fixing quick clips 15, diesel generator 3 is fixed on sound absorption pedestal 1, then will be connected with diesel generator 3, and an end that coats the high-temperature exhaust air passage 5 of thermal-protective material connects the relief opening of diesel generator 3, the other end is connected with silencing apparatus 6 by circular hole 17, guarantee that relief opening is under the prerequisite of normal exhaust, reduce the impact of high-temperature gas on temperature in structure of the present invention, and the exhaust sound of the mouth of pipe while effectively reducing exhaust
Then sound absorption leg 2 is installed on sound absorption pedestal 1, the power line connected on sound absorption leg 2 is connected on the power output of diesel generator 3, make the power stage of diesel generator 3 on power output plug 28 and power switch 29, start diesel generator 3, make the generator normal operation, check whether power supply is connected, after whether voltage is exported, sound absorption top cover 4 is installed on sound absorption leg 2, connect the power connection 45 of sound absorption top cover 4 to power output plug 28 by power line, can realize the keying of the high-temperature resistant fan 43 of draught fan 24 in sound absorption leg 2 and sound absorption top cover 4 by power switch 29.
Above-mentioned silencing apparatus 6 adopts the impedance composite noise elimination structure, and its principles and structure belongs to existing known technology.
Above description is explanation of the invention, is not limitation of the invention, and limited range of the present invention is referring to claim, in the situation that, without prejudice to basic structure of the present invention, the present invention can do any type of modification.
Claims (8)
1. the noise elimination of the quickly-assembling type for a mobile diesel generator sound-insulating cover, it is characterized in that: comprise the cover body structure formed by sound absorption top cover (4), sound absorption leg (2) and sound absorption pedestal (1), at the outside returning apparatus silencing apparatus (6) of described cover body structure, described silencing apparatus (6) is connected with the mobile diesel generator (3) of device in described cover body inside configuration by high-temperature exhaust air passage (5).
2. a kind of noise elimination of the quickly-assembling type for mobile diesel generator sound-insulating cover as claimed in claim 1, it is characterized in that: the structure of described sound absorption top cover is as follows: comprise by polylith sheet metal (21) and enclose and connect the rectangular configuration formed, sound absorption wallboard (22) is arranged in the bottom surface of described rectangular configuration, the first exhaust silencing channel (42) and the first intake noise reduction passage (44) are set respectively on described sound absorption wallboard (22), all install high-temperature resistant fan (43) in described the first exhaust silencing channel (42) and the first intake noise reduction passage (44), be positioned at the relief opening of described the first exhaust silencing channel (42) and the intake grill of the first intake noise reduction passage (44) and all arrange the venetian blind that keeps off the rain (41), the fan power supply joint (45) that is used for starting high-temperature resistant fan at the upper returning apparatus of any side sheet metal (21).
3. a kind of noise elimination of the quickly-assembling type for mobile diesel generator sound-insulating cover as claimed in claim 1 or 2, it is characterized in that: the structure of described sound absorption leg is as follows: comprise by polylith sound absorption wallboard (22) and enclose and connect the rectangular configuration formed, have the second intake noise reduction passage (23) and the second exhaust silencing channel in the two sound absorption wallboards in parallel each other left and right (22), returning apparatus draught fan (24) in described the second intake noise reduction passage (23) and the second exhaust silencing channel; Have the perforate (25) be connected with suction port and the second exhaust silencing channel air outlet of described the second intake noise reduction passage (23) on parallel front and back sound absorption wallboards (22) each other at any one; At least at a sound absorption wallboard (22) upper device double layer glass soundproof door (26), power output plug (28) and power switch (29), at the upper returning apparatus temperature display (27) of described double glazing soundproof door (26).
4. a kind of noise elimination of the quickly-assembling type for mobile diesel generator sound-insulating cover as claimed in claim 1, it is characterized in that: the structure of described sound absorption pedestal is as follows: comprise support underframe (11), sound insulation framework (12) is set on the top of described support underframe (11), organizes vibration damper (13) more and be installed between described support underframe (11) and sound insulation framework (12).
5. a kind of noise elimination of the quickly-assembling type for mobile diesel generator sound-insulating cover as claimed in claim 2, it is characterized in that: the structure of described sound absorption wallboard is as follows: comprise the first thin aluminum sheet (91), a side in described the first thin aluminum sheet (91) arranges the second thin aluminum sheet (92), be positioned between described the first thin aluminum sheet (91) and the second thin aluminum sheet (92) and paste damping material, a side at described the second thin aluminum sheet (92) also arranges sheet metal (21), one side of described sheet metal (21) arranges perforated plate (8), between described the second thin aluminum sheet (92) and sheet metal (21), and fill respectively waterproof type sound absorption cotton (7) in the confined space formed between sheet metal (21) and perforated plate (8).
6. a kind of noise elimination of the quickly-assembling type for mobile diesel generator sound-insulating cover as claimed in claim 3 is characterized in that: described the first exhaust silencing channel (42), the first intake noise reduction passage (44), the second intake noise reduction passage (23) and the second exhaust silencing channel are " U " shape or two " U " shape.
7. a kind of noise elimination of the quickly-assembling type for mobile diesel generator sound-insulating cover as claimed in claim 4, it is characterized in that: described vibration damper (13) is 2 groups, each quantity of organizing vibration damper (13) is 4, described first group of vibration damper installs respectively four bights at described support underframe (11), described second group of damper means is in the middle part of described support underframe (11), and described second group of vibration damper (13) all runs through described sound insulation framework (12) affixed with the quick clip (15) that is positioned at sound insulation framework (12) top by connecting screw rod (18).
8. a kind of noise elimination of the quickly-assembling type for mobile diesel generator sound-insulating cover as described as claim 1 or 4, it is characterized in that: boss (14) also is set on described sound insulation framework (12), described sound insulation framework (12) forms by polylith sheet metal (21) crimping, inwall at described sound insulation framework (12) arranges respectively damping rubber and sound absorption cotton (7), the upper also affixed perforated plate (8) of described sound insulation framework (12), also have the circular hole (17) run through for high-temperature exhaust air passage (5) on described perforated plate (8), the thickness of described sound insulation framework (12) is not less than 50mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310466446.9A CN103485891B (en) | 2013-10-09 | 2013-10-09 | A kind of quickly-assembling type noise elimination sound-insulating cover for mobile diesel generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310466446.9A CN103485891B (en) | 2013-10-09 | 2013-10-09 | A kind of quickly-assembling type noise elimination sound-insulating cover for mobile diesel generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103485891A true CN103485891A (en) | 2014-01-01 |
| CN103485891B CN103485891B (en) | 2015-09-09 |
Family
ID=49826417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310466446.9A Active CN103485891B (en) | 2013-10-09 | 2013-10-09 | A kind of quickly-assembling type noise elimination sound-insulating cover for mobile diesel generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103485891B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104240694A (en) * | 2014-09-03 | 2014-12-24 | 江苏海事职业技术学院 | Noise enclosure capable of being lifted away |
| CN105743659A (en) * | 2014-12-12 | 2016-07-06 | 中国科学院声学研究所 | Network switch cover |
| CN113852240A (en) * | 2021-08-24 | 2021-12-28 | 江苏英思达科技有限公司 | Motor shaft end sound insulation cover with high sound absorption capacity |
| CN114776442A (en) * | 2022-04-24 | 2022-07-22 | 合肥康尔信电力***有限公司 | Air intake and exhaust silencing device for diesel generator |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000213369A (en) * | 1999-01-21 | 2000-08-02 | Meidensha Corp | Generating apparatus |
| JP2008115807A (en) * | 2006-11-07 | 2008-05-22 | Unix Co Ltd | Soundproof box for portable apparatus |
| CN202251652U (en) * | 2011-09-01 | 2012-05-30 | 厦门嘉达环保建造工程有限公司 | Vibration isolation structure |
| CN102606294A (en) * | 2012-02-06 | 2012-07-25 | 哈尔滨城林科技有限公司 | Low-noise oil-electricity hybrid power source and implementation method thereof |
| CN202882153U (en) * | 2012-11-12 | 2013-04-17 | 肖太民 | Free-style sound-absorbing screen |
| CN202883120U (en) * | 2012-09-22 | 2013-04-17 | 泰州市凯华柴油发电机组有限公司 | Noiseless diesel generator set |
-
2013
- 2013-10-09 CN CN201310466446.9A patent/CN103485891B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000213369A (en) * | 1999-01-21 | 2000-08-02 | Meidensha Corp | Generating apparatus |
| JP2008115807A (en) * | 2006-11-07 | 2008-05-22 | Unix Co Ltd | Soundproof box for portable apparatus |
| CN202251652U (en) * | 2011-09-01 | 2012-05-30 | 厦门嘉达环保建造工程有限公司 | Vibration isolation structure |
| CN102606294A (en) * | 2012-02-06 | 2012-07-25 | 哈尔滨城林科技有限公司 | Low-noise oil-electricity hybrid power source and implementation method thereof |
| CN202883120U (en) * | 2012-09-22 | 2013-04-17 | 泰州市凯华柴油发电机组有限公司 | Noiseless diesel generator set |
| CN202882153U (en) * | 2012-11-12 | 2013-04-17 | 肖太民 | Free-style sound-absorbing screen |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104240694A (en) * | 2014-09-03 | 2014-12-24 | 江苏海事职业技术学院 | Noise enclosure capable of being lifted away |
| CN104240694B (en) * | 2014-09-03 | 2017-06-16 | 江苏海事职业技术学院 | Lift-away blimp |
| CN105743659A (en) * | 2014-12-12 | 2016-07-06 | 中国科学院声学研究所 | Network switch cover |
| CN113852240A (en) * | 2021-08-24 | 2021-12-28 | 江苏英思达科技有限公司 | Motor shaft end sound insulation cover with high sound absorption capacity |
| CN114776442A (en) * | 2022-04-24 | 2022-07-22 | 合肥康尔信电力***有限公司 | Air intake and exhaust silencing device for diesel generator |
| CN114776442B (en) * | 2022-04-24 | 2024-04-23 | 合肥康尔信电力***有限公司 | Air inlet and outlet muffler device for diesel generator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103485891B (en) | 2015-09-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202578056U (en) | Purification sound-proof chamber | |
| CN203160760U (en) | Noise abatement machine room | |
| CN201893227U (en) | Ventilation and denoising device used in ultra-high voltage converter transformer | |
| CN103485891B (en) | A kind of quickly-assembling type noise elimination sound-insulating cover for mobile diesel generator | |
| CN204511651U (en) | The sound-deadening and noise-reducing device of heavy duty generator set | |
| CN203742713U (en) | Double-layer ventilating and noise insulating cover | |
| CN105386617B (en) | A kind of removable mute power generator room | |
| CN209908611U (en) | Silence case for diesel power generation system | |
| CN203068747U (en) | Sound attenuation air duct | |
| CN203035349U (en) | Noise enclosure for internal combustion engine | |
| CN206707858U (en) | Quiet aircraft starts source of the gas unit | |
| CN205348870U (en) | Portable silence generators | |
| CN104110306B (en) | Mute power station shell | |
| CN204418741U (en) | A kind of sound insulation enclosure being applicable to gas station compressor blower fan | |
| CN203420768U (en) | Noise abatement device of electric generator | |
| CN203547841U (en) | Hiding cover for lowering noise and infrared target feature of movable diesel generator | |
| CN204139358U (en) | A kind of detachable one sound insulating house | |
| CN201018210Y (en) | Denoise system of square-cabinet power station | |
| CN209129742U (en) | A kind of container-type low-noise generator group | |
| CN203835534U (en) | Shell of silencing power station | |
| CN110821545A (en) | Self-silencing axial flow fan ventilation system for tunnel | |
| CN103557044B (en) | Reduce the stealthy cover of mobile Diesel Generator Noise and infrared target feature | |
| CN205334956U (en) | Impedance compound acoustical panel in hole that declines | |
| CN213981281U (en) | Induced draft fan with spray tower and built-in silencer | |
| CN218542409U (en) | Silencer for silencing box of diesel generator set |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |