CN203308675U - Vacuum-pump exhaust-port pressure and noise reduction box - Google Patents
Vacuum-pump exhaust-port pressure and noise reduction box Download PDFInfo
- Publication number
- CN203308675U CN203308675U CN2013202894423U CN201320289442U CN203308675U CN 203308675 U CN203308675 U CN 203308675U CN 2013202894423 U CN2013202894423 U CN 2013202894423U CN 201320289442 U CN201320289442 U CN 201320289442U CN 203308675 U CN203308675 U CN 203308675U
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- static pressure
- box
- noise reduction
- vacuum
- reduction box
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Abstract
The utility model discloses a vacuum-pump exhaust-port pressure and noise reduction box. The vacuum-pump exhaust-port pressure and noise reduction box comprises a triangular support and a static pressure box, wherein the triangular support is fixedly connected to a wall, the static pressure box is arranged on the triangular support, the bottom of the static pressure box is communicated with an exhaust pipe of a vacuum pump, an air outlet is arranged on one side, far away from the wall, of the static pressure box, and a flow deflector is arranged at the air outlet. The vacuum-pump exhaust-port pressure and noise reduction box can insulate direct contact between the exhaust pipe of the vacuum pump and the outside world; by means of the box-type static pressure box, wind is exhausted after the wind speed is reduced to a certain range, and therefore high-speed wind currents and air are prevented from making direct contact to produce noise. The vacuum-pump exhaust-port pressure and noise reduction box plays a role in reducing pressure and noise. After the vacuum-pump exhaust-port pressure and noise reduction box is adopted, the speed of the wind currents exhausted to the environment is reduced obviously, and the vacuum-pump exhaust-port pressure and noise reduction box meets the requirement for the wind conveying wind speed standard of a laboratory, and is low manufacturing cost, good in occupational health and environment friendliness effect and very suitable for noise elimination of an exhaust port of the vacuum pump of a tobacco factory.
Description
Technical field
The utility model belongs to airduct wind-force and carries the noise reduction technology field, relates in particular to a kind of vacuum pump exhaust port step-down noise-decreasing device.
Background technique
At Yan Chang, the wind with certain pressure is emptying from the vacuum pump exhaust duct, because wind-force has certain flow velocity, after with air, contacting, produces friction, thereby produces noise.The vacuum pump of my factory of company is arranged on basement, and vacuum pump has 3 groups, every group of vacuum pump power 75KW, and the negative pressure air quantity is 46m
3/ min, ultimate pressure 33HPa, specified negative pressure-0.08MPa(gauge pressure), absolute pressure is 21.3Kpa, the exhaust port exit velocity is 24m/s.Because exhaust directly is connected with atmosphere, thereby can produce and rub and cause noise, not meet the safety and environmental protection standard.
The model utility content
The purpose of this utility model is to provide a kind of vacuum pump exhaust port decompression noise reduction box.
For achieving the above object, vacuum pump exhaust port of the present utility model decompression noise reduction box comprises and is fixedly connected on the A-frame on body of wall and is arranged on the static pressure box on A-frame, the static pressure box bottom is connected with the exhaust duct of vacuum pump, the side that static pressure box deviates from body of wall is provided with exhaust outlet, and the exhaust outlet place is provided with guide plate.
Described static pressure box is cuboid shape, high 1.2 meters, long 1.5 meters, wide 1 meter; The static pressure box side that is provided with exhaust outlet one side is the side of 1.2 meters of 1.5 meters *.
Described static pressure box bottom surface is provided with the gradient, and the lowest part of static pressure box bottom surface is connected with aqueduct, and aqueduct is connected with the underground water-saving case downwards.
Described static pressure box casing is covered with 0.3 meter thick insulation material layer outward.
On the vacuum pump exhaust duct of described static pressure box below, be in series with hose connector.
The utility model is simple in structure, easy to use.The utility model can isolated vacuum pump exhaust duct and extraneous contacting directly, and by a box-type static pressure box, discharges after wind speed is reduced to certain scope again, avoids that high speed is distinguished and admirable directly contacts and produce noise with air.Vacuum pump exhaust port decompression noise reduction box of the present utility model plays the decompression Noise Reduction, adopt the airspeed of the backward environmental emission of present technique to reduce obviously, meet laboratory wind-force conveying air velocity standard-required, the manufacturing cost is low, the occupational health environment protection effect is good, is applicable to very much the processing of eliminating the noise of the relief opening of the true pump of cigarette factory.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is that schematic diagram is looked on the right side of Fig. 1.
Embodiment
In Fig. 2, direction shown in arrow is airflow direction.
The modification scheme that the application be take to three 2BEA303 type Nash hytor exhaust structures of my factory of company is specific embodiment.This factory three vacuum pumps be arranged on basement, three vacuum pump outlet pipes are the body of wall 4 by the basement operating room leading to outside the basement operating room all.
As depicted in figs. 1 and 2, the vacuum pump exhaust port decompression noise reduction box of the present embodiment comprises the A-frame 1 be fixedly connected on body of wall and is arranged on the static pressure box 2 on A-frame 1, static pressure box 2 bottoms are connected with the exhaust duct 3 of existing 3 vacuum pumps, the side that static pressure box 2 deviates from body of wall 4 is provided with exhaust outlet 5, and exhaust outlet 5 places are provided with guide plate 6.
Described static pressure box 2 is cuboid shape, high 1.2 meters, long 1.5 meters, wide 1 meter; The static pressure box side that is provided with exhaust outlet 5 one sides is the side of 1.2 meters of 1.5 meters *.
Described static pressure box 2 bottom surfaces are provided with the gradient (figure is not shown in detail the gradient), the lowest part of static pressure box 2 bottom surfaces is connected with aqueduct 7, aqueduct 7 is connected with underground water-saving case 8 downwards, in order in time the water in static pressure box (while especially starting shooting, air draft easily makes in static pressure box to occur water) is drawn.
Described static pressure box 2 casings are covered with 0.3 meter thick insulation material layer (insulation material layer is routine techniques, and figure does not show) outward, in order to strengthen noise reduction.Soundproof material preferably adopts the insulation rubber-plastics material.
On the vacuum pump exhaust duct 3 of described static pressure box 2 belows, be in series with hose connector 9, thereby avoid pipeline vibration to pass to static pressure box 2, reduce the noise that pipeline vibration produces.
Through test, after using the utility model, the gas flow rate that vacuum pump is discharged in environment is reduced to 0.43m/s by 24 original m/s, carries and is no more than 0.3 m/s standard-required near laboratory wind-force, has greatly reduced exhaust sound.Within this type of conversion all drops on protection domain of the present utility model.
Claims (5)
1. vacuum pump exhaust port decompression noise reduction box, it is characterized in that: comprise and be fixedly connected on the A-frame on body of wall and be arranged on the static pressure box on A-frame, the static pressure box bottom is connected with the exhaust duct of vacuum pump, the side that static pressure box deviates from body of wall is provided with exhaust outlet, and the exhaust outlet place is provided with guide plate.
2. vacuum pump exhaust port according to claim 1 decompression noise reduction box, it is characterized in that: described static pressure box is cuboid shape, high 1.2 meters, long 1.5 meters, wide 1 meter; The static pressure box side that is provided with exhaust outlet one side is the side of 1.2 meters of 1.5 meters *.
3. vacuum pump exhaust port according to claim 1 and 2 decompression noise reduction box, it is characterized in that: described static pressure box bottom surface is provided with the gradient, and the lowest part of static pressure box bottom surface is connected with aqueduct, and aqueduct is connected with the underground water-saving case downwards.
4. vacuum pump exhaust port according to claim 3 decompression noise reduction box, it is characterized in that: described static pressure box casing is covered with 0.3 meter thick insulation material layer outward.
5. vacuum pump exhaust port decompression noise reduction box according to claim 4, is characterized in that: be in series with hose connector on the vacuum pump exhaust duct of described static pressure box below.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202894423U CN203308675U (en) | 2013-05-24 | 2013-05-24 | Vacuum-pump exhaust-port pressure and noise reduction box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202894423U CN203308675U (en) | 2013-05-24 | 2013-05-24 | Vacuum-pump exhaust-port pressure and noise reduction box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203308675U true CN203308675U (en) | 2013-11-27 |
Family
ID=49614889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202894423U Expired - Lifetime CN203308675U (en) | 2013-05-24 | 2013-05-24 | Vacuum-pump exhaust-port pressure and noise reduction box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203308675U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108335882A (en) * | 2017-11-29 | 2018-07-27 | 无锡澳蓝特环保科技有限公司 | Substation's exhaust outlet static pressure mechanism |
| CN114414449A (en) * | 2022-01-25 | 2022-04-29 | 四川大学 | Novel intelligent occupational health real-time detection device |
-
2013
- 2013-05-24 CN CN2013202894423U patent/CN203308675U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108335882A (en) * | 2017-11-29 | 2018-07-27 | 无锡澳蓝特环保科技有限公司 | Substation's exhaust outlet static pressure mechanism |
| CN114414449A (en) * | 2022-01-25 | 2022-04-29 | 四川大学 | Novel intelligent occupational health real-time detection device |
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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 | ||
| CP02 | Change in the address of a patent holder |
Address after: 450000 Yulin South Road, Henan, Zheng Dong, No. 16 South Road, Zhengzhou Patentee after: CHINA TOBACCO HENAN INDUSTRIAL Co.,Ltd. Address before: 450000 Henan province Zhengzhou guanchengou Longhai Road No. 72 Patentee before: CHINA TOBACCO HENAN INDUSTRIAL Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20131127 |
|
| CX01 | Expiry of patent term |