CN202228438U - Compact sound absorption and noise reduction device of engine room ventilator of fishing boat - Google Patents
Compact sound absorption and noise reduction device of engine room ventilator of fishing boat Download PDFInfo
- Publication number
- CN202228438U CN202228438U CN201120337895XU CN201120337895U CN202228438U CN 202228438 U CN202228438 U CN 202228438U CN 201120337895X U CN201120337895X U CN 201120337895XU CN 201120337895 U CN201120337895 U CN 201120337895U CN 202228438 U CN202228438 U CN 202228438U
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- China
- Prior art keywords
- fishing boat
- engine room
- ventilator
- compact type
- room fan
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- Expired - Fee Related
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Abstract
The utility model relates to a fishing boat ventilating device, in particular to a fishing boat ventilating device capable of reducing noise. A compact sound absorption and noise reduction device of an engine room ventilator of a fishing boat comprises a ventilator (5) connected with the outer side of an engine room wall (6) of the fishing boat, an outer frame (1) arranged on the inner side of the engine room wall (6) and tightly close to the ventilator (5), a muffler device arranged in the outer frame (1), a support beam (3) fixedly connected with the outer frame (1) and a connecting piece fixedly connected with the engine room wall (6) of the fishing boat and the support beam (3). The muffler device comprises a metal grid (8) and muffler materials glass cotton (7) arranged in the metal grid.
Description
Technical field
The utility model relates to a kind of fishing boat ventilation equipment, especially relates to a kind of fishing boat ventilation equipment that can noise reduction.
Background technique
For improving bad working environment in the fishing boat cabin; Improve the working life of fishing boat main frame; Ventilation plant is equipped by domestic a lot of fishery in affiliated fishing boat cabin, the centrifugal or shaft type ventilator of equipment does not all have sound-insulation noise reducer in a lot of fishing boats cabin but have at present.The noise that ventilator produces in the fishing boat cabin is unfavorable for people's physical and mental health, sometimes even can influence the safe navigation of fishing boat.Therefore, the effective denoising device of design one cover has very strong use value.
The model utility content
The purpose of the utility model provides a kind of compact type fishing boat engine room fan sqouynd absorption lowering noise device; Adopt metal grill and be arranged on muffler material glass silk flosssilk wadding wherein, can improve acoustic enviroment in the fishing boat cabin, reduced noise level; And it is simple in structure, easily manufactured.
In order to achieve the above object, the technological scheme of the utility model employing is:
Compact type fishing boat engine room fan sqouynd absorption lowering noise device; Be connected the ventilator 5 in machinery space bulkhead 6 outsides of fishing boat; Also comprise the external frame 1 that machinery space bulkhead 6 inboards are set; And said external frame 1 is arranged at the silencer 2 in the said external frame 1, the supporting traverse 3 and the link 4 that are fixedly connected with said external frame 1 closely near said ventilator 5;
Said link 4 is fixedly connected the machinery space bulkhead 6 and said supporting traverse 3 of fishing boat;
Said silencer 2 comprises metal grill 8 and is arranged on muffler material glass silk flosssilk wadding 7 wherein.
The arranged outside of the blade 10 of described ventilator 5 has wire netting 9, and said wire netting 9 is fixedly connected with machinery space bulkhead 6, and described wire netting 9 is the 10-15 millimeter with said blade 10 distances.
The wire diameter of described wire netting 9 is the 1-1.5 millimeter, the effective cross section coefficient of wire netting 9, and promptly the effective ventilation area of net is 0.5-0.6 with the ratio of web area.
Said metal grill 8 is isosceles triangle near said ventilator 5 one sides, and vertex angle theta is 50-60 °.
The length of said metal grill 8 is 0.4-1 rice.
Spacing between per two grids of said metal grill 8 is 45-58mm.
The beneficial effect of the utility model is:
Before the tail gas in the cabin is getting into ventilator; Elder generation's process wire netting, thus the turbulent boundary layer of blade suction surface is weakened, make the part energy of Ye Daonei main air flow transfer to the boundary layer like this; Impel the boundary layer stable not easily separated, thereby turbulence noise obtain corresponding control.When the tail gas that ventilator is got rid of outwards discharges; Lead to the external world again through silencer earlier, tail gas is through silencer the time, and the glass silk flosssilk wadding of silencer is puffy; Can absorb the noise that the running of exhaust gas flow and blower fan is produced, thereby reach the purpose that reduces noise in the cabin.
The utility model compact type sqouynd absorption lowering noise device has characteristics such as size is little, simple in structure, easy for installation, excellent noise reduction effect, has huge market prospects in coastal fishing boat market, has also protected numerous fishermen's physical and mental health simultaneously.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
Fig. 1 is the structural representation of the utility model compact type fishing boat engine room fan sqouynd absorption lowering noise device;
Fig. 2 is the metal grill schematic representation of the utility model;
Fig. 3 is the wire netting schematic representation of the utility model;
Fig. 4 is the metal grill side schematic view;
Among the figure: 1 external frame, 2 silencer, 3 supporting traverses, 4 links, 5 ventilators, 6 machinery space bulkheads, 7 glass silk flosssilk waddings, 8 metal grills, 9 wire nettings, 10 blades.
Embodiment
In conjunction with Fig. 1; Compact type fishing boat engine room fan sqouynd absorption lowering noise device comprises the ventilator 5 in machinery space bulkhead 6 outsides that are connected fishing boat, and external frame 1 is closely near said ventilator 5 and machinery space bulkhead 6 inboards are set; Be provided with silencer 2 in the external frame 1, supporting traverse 3 is fixedly connected with external frame 1.
Link 4 (link can be an angle steel) is fixedly connected the machinery space bulkhead 6 and supporting traverse 3 of fishing boat.
Silencer 2 comprises metal grill 8 and is arranged on muffler material glass silk flosssilk wadding 7 wherein that glass silk flosssilk wadding 7 is fluffy eyelet-like.
The arranged outside of the blade 10 of ventilator 5 has wire netting 9, and said wire netting 9 is fixedly connected with machinery space bulkhead 6.Wire netting 9 is the 10-15 millimeter with blade 10 distances.
Like Fig. 3, the wire diameter of wire netting 9 is the 1-1.5 millimeter, the effective cross section coefficient of wire netting 9, and promptly the effective ventilation area of net is 0.5-0.6 with the ratio of web area.
Like Fig. 4, metal grill 8 is isosceles triangle near said ventilator 5 one sides, and vertex angle theta is 50-60 °.
Like Fig. 2, metal grill 8 length are 500mm, and wide is 100mm, and the spacing between per two metal grills is 50mm; External frame 1 is square; Be of a size of 1250
1250mm
After this device installs; Before the tail gas in the cabin is getting into ventilator; Elder generation's process wire netting, thus the turbulent boundary layer of blade suction surface is weakened, make the part energy of Ye Daonei main air flow transfer to the boundary layer like this; Impel the boundary layer stable not easily separated, thereby turbulence noise obtain corresponding control.When ventilator 5 outwards discharges the tail gas in the cabin; Tail gas leads to extraneous through silencer 2 again; Tail gas is through silencer 2 time, because the glass silk flosssilk wadding 7 in the silencer 2 is puffy, is the glass silk flosssilk wadding 7 absorption exhaust gas flow of fluffy eyelet-like and the noise that ventilator 5 runnings are produced; Thereby but noise reduction is arrived in black gang's tolerance range, the actual measurement noise is about 50dB (A).
Claims (6)
1. compact type fishing boat engine room fan sqouynd absorption lowering noise device; Comprise the ventilator (5) in machinery space bulkhead (6) outside that is connected fishing boat, it is characterized in that, also comprise the inboard external frame (1) of machinery space bulkhead (6) is set; And said external frame (1) is closely near said ventilator (5); Be arranged at the silencer (2) in the said external frame (1), supporting traverse (3) that is fixedly connected with said external frame (1) and link (4)
Said link (4) is fixedly connected the machinery space bulkhead (6) and the said supporting traverse (3) of fishing boat;
Said silencer (2) comprises metal grill (8) and is arranged on muffler material glass silk flosssilk wadding (7) wherein.
2. compact type fishing boat engine room fan sqouynd absorption lowering noise device according to claim 1, it is characterized in that: the arranged outside of the blade (10) of described ventilator (5) has wire netting (9), and said wire netting (9) is fixedly connected with machinery space bulkhead (6),
3. compact type fishing boat engine room fan sqouynd absorption lowering noise device according to claim 2 is characterized in that: described wire netting (9) is the 10-15 millimeter with said blade (10) distance.
4. according to claim 2 or 3 described compact type fishing boat engine room fan sqouynd absorption lowering noise devices; It is characterized in that: the wire diameter of described wire netting (9) is the 1-1.5 millimeter; The effective cross section coefficient of wire netting (9), promptly the effective ventilation area of net is 0.5-0.6 with the ratio of web area.
5. compact type fishing boat engine room fan sqouynd absorption lowering noise device according to claim 1 is characterized in that: said metal grill (8) is isosceles triangle near said ventilator (5) one sides, and vertex angle theta is 50-60 °.
6. compact type fishing boat engine room fan sqouynd absorption lowering noise device according to claim 5, it is characterized in that: the length of said metal grill (8) is 0.4-1 rice.
7. compact type fishing boat engine room fan sqouynd absorption lowering noise device according to claim 5 is characterized in that: the spacing between per two grids of said metal grill (8) is 45-58mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120337895XU CN202228438U (en) | 2011-09-09 | 2011-09-09 | Compact sound absorption and noise reduction device of engine room ventilator of fishing boat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120337895XU CN202228438U (en) | 2011-09-09 | 2011-09-09 | Compact sound absorption and noise reduction device of engine room ventilator of fishing boat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202228438U true CN202228438U (en) | 2012-05-23 |
Family
ID=46079025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120337895XU Expired - Fee Related CN202228438U (en) | 2011-09-09 | 2011-09-09 | Compact sound absorption and noise reduction device of engine room ventilator of fishing boat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202228438U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104595251A (en) * | 2014-11-27 | 2015-05-06 | 深圳市科德声学技术有限公司 | Silencer for lampblack fan |
-
2011
- 2011-09-09 CN CN201120337895XU patent/CN202228438U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104595251A (en) * | 2014-11-27 | 2015-05-06 | 深圳市科德声学技术有限公司 | Silencer for lampblack fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHANGHAI ZHONGCHI GROUP CO., LTD. Free format text: FORMER NAME: SHANGHAI ZHONGCHI CONSTRUCTION ENGINEERING CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 201424 Shanghai Cang Road, No. fourth, the 1 workshop of the 528 floor, two Patentee after: SHAZC GROUP CO., LTD. Address before: 201424, No. 12, No. 2, No. 1288, Cang Gong Road, Shanghai, Fengxian District Patentee before: Shanghai Zhongchi Building Engineering Co., Ltd. |
|
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 201424 Shanghai Cang Road, No. fourth, the 1 workshop of the 528 floor, two Patentee after: SHANGHAI ZHONGCHI GROUP CO., LTD. Address before: 201424 Shanghai Cang Road, No. fourth, the 1 workshop of the 528 floor, two Patentee before: SHAZC GROUP CO., LTD. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120523 Termination date: 20170909 |