CN104832249A - Novel buffer impedance type silencer - Google Patents
Novel buffer impedance type silencer Download PDFInfo
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- CN104832249A CN104832249A CN201510206101.9A CN201510206101A CN104832249A CN 104832249 A CN104832249 A CN 104832249A CN 201510206101 A CN201510206101 A CN 201510206101A CN 104832249 A CN104832249 A CN 104832249A
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- dividing plate
- inserting tube
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Abstract
The invention relates to the field of mechanical equipment, can be used for absorbing and reducing noise quite well according to high frequency and low frequency in the noise respectively, and particularly relates to a novel buffer impedance type silencer, which comprises an expanded silencing chamber, wherein one end of the expanded silencing chamber is provided with an air inlet pipe; the other end of the expanded silencing chamber is provided with an air outlet pipe; baffle plates are arranged on a surface, which is perpendicular to the centerline of the air inlet pipe, in the expanded silencing chamber; a V-shaped buffer plate is arranged between the baffle plates and an air inlet opening; the baffle plates are provided with insert pipes; the insert pipes are provided with shock damping holes and flow decreasing holes; the insert pipes are also provided with sound absorbing layers; the centerlines of the insert pipes and the air inlet pipe as well as the expanded silencing chamber are the same; four groups of baffle plates are arranged in the expanded silencing chamber; each group of baffle plates comprises four baffle plates; all the four baffle plates are provided with the insert pipes; the four baffle plates equally separate the expanded silencing chamber into four same sector chambers by using the centerline of the expanded silencing chamber as a center; a stiffening ring is arranged between the baffle plates and the inner wall of the expanded silencing chamber. The novel buffer impedance type silencer which is provided by the invention is simple in structure and wide in application, and the noise can be absorbed and reduced according to the high frequency and the low frequency in the noise respectively.
Description
Technical field
The present invention relates to a kind of machinery, particularly New Buffering impedance type baffler.
Background technique
Along with advancing by leaps and bounds of farm machinery development, the large-scale promotion of producing along with mechanized agriculture, environmental pollution is also following, and noise pollution is exactly one of them.Farm machinery can send very large noise in the process of operation, general, except the noise that chain transmission and motor or motor produce, the toxic emission of motor also can produce very large noise, and large more than the noise of chain transmission and motor generation, become the main source of noise in farm mechanization production.Often weather is drier season in harvesting, and the layout of silencing apparatus is generally in machine chassis bottom, easily makes dry thing catch fire initiation fire, such as harvesting machinery.Therefore, the noise how reducing toxic emission generation suffers from fire a great problem becoming agriculture equipment.The waste gas that traditional diesel engine is discharged in its working procedure all can produce very noisy, most diesel engine is all provided with baffler, and silencing apparatus is a kind of device stoping sound transmission and allow air-flow to pass through, eliminate the important measures of air power noise, the device of the reduction noise on the air-flow path that silencing apparatus is mounted in air powered equipment (equipment as larger in relief opening noises such as blower, air compressor, boiler exhaust mouth, generator, water pumps) or in inlet and exhaust system; The effect of baffler is the very noisy absorbing waste gas generation, to eliminate, to reduce the impact of Noise upon Environment, the kind of the baffler on market is a lot, but these bafflers are only in shape and install and there is difference, and the not change of the structure of baffler itself and working principle.Existing baffler all well can not absorb noise reduction according to the high and low frequency in noise respectively.
Summary of the invention
Goal of the invention of the present invention is: for prior art Problems existing, provides New Buffering impedance type baffler.
To achieve these goals, the technical solution used in the present invention is: New Buffering impedance type baffler, comprise expansion anechoic chamber, described expansion anechoic chamber is cylindrical shape, one end of described expansion anechoic chamber is provided with suction tude, its the other end is provided with steam outlet pipe, dividing plate is provided with in described expansion anechoic chamber with on the face of the central axis of described suction tude, V-arrangement cushion plate is provided with between dividing plate and suction port, dividing plate is provided with Inserting Tube, described Inserting Tube is cylindrical shape, described Inserting Tube is provided with shock absorbing hole and subtracts discharge orifice, described Inserting Tube is also provided with sound-absorption layer, described Inserting Tube is identical with the center line expanding anechoic chamber with suction tude, four groups of dividing plates are provided with in described expansion anechoic chamber, described dividing plate of often organizing has four pieces, four pieces of dividing plates are equipped with Inserting Tube, expansion anechoic chamber is divided into four identical sector shaped chambers by four pieces of dividing plates centered by the center line expanding anechoic chamber, stiffening ring is provided with between described dividing plate and expansion anechoic chamber inwall.
As preferred version of the present invention, the described central axis direction of four groups of dividing plates successively from suction tude 1 to steam outlet pipe is arranged in parallel, on the Inserting Tube of shock absorbing hole between first group and second group of dividing plate, outer wall near the Inserting Tube between second group of dividing plate and the 3rd group of dividing plate is provided with sound-absorption layer, the Inserting Tube of second group of dividing plate and the 3rd group of dividing plate centre is provided with opening, and the outer wall of the Inserting Tube between the 3rd group of dividing plate and the 4th group of dividing plate is provided with sound-absorption layer.
As preferred version of the present invention, described first group and second group of dividing plate and Inserting Tube and expand between anechoic chamber's inwall and form shock absorbing room.Shock absorbing room can reduce the resonance efficiency of noise, absorbs the volume of the HFS in noise decrease.
As preferred version of the present invention, described second group and the 3rd group of dividing plate and Inserting Tube and expand to be formed to subtract between anechoic chamber's inwall and flow room.Subtract stream room and can reduce the resonance efficiency of noise, absorb in noise decrease, the volume of low frequency part.
As preferred version of the present invention, described shock absorbing hole and subtract discharge orifice and be provided with several, and be distributed on the outer wall of Inserting Tube.Uniform multiple shock absorbing hole and subtract discharge orifice noise can be allowed more to discharge.
As preferred version of the present invention, all through between described Inserting Tube and four groups of dividing plates.
As preferred version of the present invention, the part that described Inserting Tube outer wall is provided with sound-absorption layer is evenly provided with several through hole, is provided with stainless steel filter screen outside through hole, is provided with cellophane or glass wool outside stainless steel filter screen.Through hole can allow noise pass insertion tube wall, is then absorbed by cellophane or glass wool.
As preferred version of the present invention, between described stiffening ring dividing plate, be provided with stiffening rib, outside described expansion anechoic chamber, be also provided with resistive plug.
In sum, owing to have employed technique scheme, the beneficial effect of New Buffering impedance type baffler of the present invention is: its structure is simple, is widely used, can absorbs noise reduction respectively according to the high and low frequency in noise.
Accompanying drawing explanation
Fig. 1 is the structural representation of New Buffering impedance type baffler of the present invention;
Fig. 2 is the sectional drawing of A-A in Fig. 1;
Fig. 3 is the sectional drawing of B-B in Fig. 1;
Fig. 4 is the partial enlarged drawing of C in Fig. 1;
Fig. 5 is the partial enlarged drawing of D in Fig. 1.
Mark in figure: 1-suction tude, 2-expands anechoic chamber, 3-dividing plate, 4-shock absorbing hole, 5-stiffening ring, 6-sound-absorption layer, 7-subtracts discharge orifice, 8-Inserting Tube, 9-steam outlet pipe, 10-stainless steel filter screen, 11-cellophane or glass wool, 12-through hole, 13-stiffening rib, the resistive plug of 14-, 15-V shape cushion plate.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in detail.
In order to make object of the present invention, technological scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
embodiment 1
New Buffering impedance type baffler, comprise expansion anechoic chamber 2, described expansion anechoic chamber 2 is cylindrical shape, one end of described expansion anechoic chamber 2 is provided with suction tude 1, its the other end is provided with steam outlet pipe 9, dividing plate 3 is provided with in described expansion anechoic chamber 2 with on the face of the central axis of described suction tude 1, V-arrangement cushion plate 15 is provided with between dividing plate 3 and suction port 1, dividing plate 3 is provided with Inserting Tube 8, described Inserting Tube 8 is cylindrical shape, described Inserting Tube 8 is provided with shock absorbing hole 4 and subtracts discharge orifice 7, described Inserting Tube 8 is also provided with sound-absorption layer 6, described Inserting Tube 8 is identical with the center line expanding anechoic chamber 2 with suction tude 1, four groups of dividing plates are provided with in described expansion anechoic chamber 2, described dividing plate of often organizing has four pieces, four pieces of dividing plates 3 are equipped with Inserting Tube 8, expansion anechoic chamber 2 is divided into four identical sector shaped chambers by four pieces of dividing plates 3 centered by the center line expanding anechoic chamber 2, stiffening ring 5 is provided with between described dividing plate 3 and expansion anechoic chamber 2 inwall.
Described four groups of dividing plates are arranged in parallel to the central axis direction of steam outlet pipe 9 from suction tude 1 successively, on the Inserting Tube 8 of shock absorbing hole 4 between first group and second group of dividing plate, outer wall near the Inserting Tube 8 between second group of dividing plate and the 3rd group of dividing plate is provided with sound-absorption layer 6, the Inserting Tube 8 of second group of dividing plate and the 3rd group of dividing plate centre is provided with opening 7, and the outer wall of the Inserting Tube 8 between the 3rd group of dividing plate and the 4th group of dividing plate is provided with sound-absorption layer 6.
Described first group and second group of dividing plate and Inserting Tube 8 and expand between anechoic chamber 2 inwall and form shock absorbing room.
Described second group and the 3rd group of dividing plate and Inserting Tube 8 and expand to be formed to subtract between anechoic chamber 2 inwall and flow room.
Described shock absorbing hole 4 and subtract discharge orifice 7 and be provided with several, and be distributed on the outer wall of Inserting Tube 8.
embodiment 2
New Buffering impedance type baffler, comprise expansion anechoic chamber 2, described expansion anechoic chamber 2 is cylindrical shape, one end of described expansion anechoic chamber 2 is provided with suction tude 1, its the other end is provided with steam outlet pipe 9, dividing plate 3 is provided with in described expansion anechoic chamber 2 with on the face of the central axis of described suction tude 1, V-arrangement cushion plate 15 is provided with between dividing plate 3 and suction port 1, dividing plate 3 is provided with Inserting Tube 8, described Inserting Tube 8 is cylindrical shape, described Inserting Tube 8 is provided with shock absorbing hole 4 and subtracts discharge orifice 7, described Inserting Tube 8 is also provided with sound-absorption layer 6, described Inserting Tube 8 is identical with the center line expanding anechoic chamber 2 with suction tude 1, four groups of dividing plates are provided with in described expansion anechoic chamber 2, described dividing plate of often organizing has four pieces, four pieces of dividing plates 3 are equipped with Inserting Tube 8, expansion anechoic chamber 2 is divided into four identical sector shaped chambers by four pieces of dividing plates 3 centered by the center line expanding anechoic chamber 2, stiffening ring 5 is provided with between described dividing plate 3 and expansion anechoic chamber 2 inwall.
Described four groups of dividing plates are arranged in parallel to the central axis direction of steam outlet pipe 9 from suction tude 1 successively, on the Inserting Tube 8 of shock absorbing hole 4 between first group and second group of dividing plate, outer wall near the Inserting Tube 8 between second group of dividing plate and the 3rd group of dividing plate is provided with sound-absorption layer 6, the Inserting Tube 8 of second group of dividing plate and the 3rd group of dividing plate centre is provided with opening 7, and the outer wall of the Inserting Tube 8 between the 3rd group of dividing plate and the 4th group of dividing plate is provided with sound-absorption layer 6.
Described first group and second group of dividing plate and Inserting Tube 8 and expand between anechoic chamber 2 inwall and form shock absorbing room.
Described second group and the 3rd group of dividing plate and Inserting Tube 8 and expand to be formed to subtract between anechoic chamber 2 inwall and flow room.
Described shock absorbing hole 4 and subtract discharge orifice 7 and be provided with several, and be distributed on the outer wall of Inserting Tube 8.
All through between described Inserting Tube 8 and four groups of dividing plates.
embodiment 3
New Buffering impedance type baffler, comprise expansion anechoic chamber 2, described expansion anechoic chamber 2 is cylindrical shape, one end of described expansion anechoic chamber 2 is provided with suction tude 1, its the other end is provided with steam outlet pipe 9, dividing plate 3 is provided with in described expansion anechoic chamber 2 with on the face of the central axis of described suction tude 1, V-arrangement cushion plate 15 is provided with between dividing plate 3 and suction port 1, dividing plate 3 is provided with Inserting Tube 8, described Inserting Tube 8 is cylindrical shape, described Inserting Tube 8 is provided with shock absorbing hole 4 and subtracts discharge orifice 7, described Inserting Tube 8 is also provided with sound-absorption layer 6, described Inserting Tube 8 is identical with the center line expanding anechoic chamber 2 with suction tude 1, four groups of dividing plates are provided with in described expansion anechoic chamber 2, described dividing plate of often organizing has four pieces, four pieces of dividing plates 3 are equipped with Inserting Tube 8, expansion anechoic chamber 2 is divided into four identical sector shaped chambers by four pieces of dividing plates 3 centered by the center line expanding anechoic chamber 2, stiffening ring 5 is provided with between described dividing plate 3 and expansion anechoic chamber 2 inwall.
Described four groups of dividing plates are arranged in parallel to the central axis direction of steam outlet pipe 9 from suction tude 1 successively, on the Inserting Tube 8 of shock absorbing hole 4 between first group and second group of dividing plate, outer wall near the Inserting Tube 8 between second group of dividing plate and the 3rd group of dividing plate is provided with sound-absorption layer 6, the Inserting Tube 8 of second group of dividing plate and the 3rd group of dividing plate centre is provided with opening 7, and the outer wall of the Inserting Tube 8 between the 3rd group of dividing plate and the 4th group of dividing plate is provided with sound-absorption layer 6.
Described first group and second group of dividing plate and Inserting Tube 8 and expand between anechoic chamber 2 inwall and form shock absorbing room.
Described second group and the 3rd group of dividing plate and Inserting Tube 8 and expand to be formed to subtract between anechoic chamber 2 inwall and flow room.
Described shock absorbing hole 4 and subtract discharge orifice 7 and be provided with several, and be distributed on the outer wall of Inserting Tube 8.
All through between described Inserting Tube 8 and four groups of dividing plates.
The part that described Inserting Tube 8 outer wall is provided with sound-absorption layer 6 is evenly provided with several through hole 12, is provided with stainless steel filter screen 10 outside through hole 12, is provided with cellophane or glass wool 11 outside stainless steel filter screen 10.
embodiment 4
New Buffering impedance type baffler, comprise expansion anechoic chamber 2, described expansion anechoic chamber 2 is cylindrical shape, one end of described expansion anechoic chamber 2 is provided with suction tude 1, its the other end is provided with steam outlet pipe 9, dividing plate 3 is provided with in described expansion anechoic chamber 2 with on the face of the central axis of described suction tude 1, V-arrangement cushion plate 15 is provided with between dividing plate 3 and suction port 1, dividing plate 3 is provided with Inserting Tube 8, described Inserting Tube 8 is cylindrical shape, described Inserting Tube 8 is provided with shock absorbing hole 4 and subtracts discharge orifice 7, described Inserting Tube 8 is also provided with sound-absorption layer 6, described Inserting Tube 8 is identical with the center line expanding anechoic chamber 2 with suction tude 1, four groups of dividing plates are provided with in described expansion anechoic chamber 2, described dividing plate of often organizing has four pieces, four pieces of dividing plates 3 are equipped with Inserting Tube 8, expansion anechoic chamber 2 is divided into four identical sector shaped chambers by four pieces of dividing plates 3 centered by the center line expanding anechoic chamber 2, stiffening ring 5 is provided with between described dividing plate 3 and expansion anechoic chamber 2 inwall.
Described four groups of dividing plates are arranged in parallel to the central axis direction of steam outlet pipe 9 from suction tude 1 successively, on the Inserting Tube 8 of shock absorbing hole 4 between first group and second group of dividing plate, outer wall near the Inserting Tube 8 between second group of dividing plate and the 3rd group of dividing plate is provided with sound-absorption layer 6, the Inserting Tube 8 of second group of dividing plate and the 3rd group of dividing plate centre is provided with opening 7, and the outer wall of the Inserting Tube 8 between the 3rd group of dividing plate and the 4th group of dividing plate is provided with sound-absorption layer 6.
Described first group and second group of dividing plate and Inserting Tube 8 and expand between anechoic chamber 2 inwall and form shock absorbing room.
Described second group and the 3rd group of dividing plate and Inserting Tube 8 and expand to be formed to subtract between anechoic chamber 2 inwall and flow room.
Described shock absorbing hole 4 and subtract discharge orifice 7 and be provided with several, and be distributed on the outer wall of Inserting Tube 8.
All through between described Inserting Tube 8 and four groups of dividing plates.
The part that described Inserting Tube 8 outer wall is provided with sound-absorption layer 6 is evenly provided with several through hole 12, is provided with stainless steel filter screen 10 outside through hole 12, is provided with cellophane or glass wool 11 outside stainless steel filter screen 10.
Be provided with stiffening rib 13 between described stiffening ring 5 dividing plate 3, described expansion anechoic chamber 2 is outer is also provided with resistive plug 14.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. New Buffering impedance type baffler, it is characterized in that: comprise expansion anechoic chamber (2), described expansion anechoic chamber (2) is cylindrical shape, one end of described expansion anechoic chamber (2) is provided with suction tude (1), its the other end is provided with steam outlet pipe (9), dividing plate (3) is provided with in described expansion anechoic chamber (2) with on the face of the central axis of described suction tude (1), V-arrangement cushion plate (15) is provided with between dividing plate (3) and suction port (1), dividing plate (3) is provided with Inserting Tube (8), described Inserting Tube (8) is cylindrical shape, described Inserting Tube (8) is provided with shock absorbing hole (4) and subtracts discharge orifice (7), described Inserting Tube (8) is also provided with sound-absorption layer (6), described Inserting Tube (8) is identical with the center line expanding anechoic chamber (2) with suction tude (1), four groups of dividing plates are provided with in described expansion anechoic chamber (2), described dividing plate of often organizing has four pieces, four pieces of dividing plates (3) are equipped with Inserting Tube (8), four pieces of dividing plates (3) will be expanded anechoic chamber (2) and be divided into four identical sector shaped chambers centered by the center line expanding anechoic chamber (2), stiffening ring (5) is provided with between described dividing plate (3) and expansion anechoic chamber (2) inwall.
2. New Buffering impedance type baffler according to claim 1, it is characterized in that: described four groups of dividing plates are arranged in parallel to the central axis direction of steam outlet pipe (9) from suction tude (1) successively, on the Inserting Tube (8) of shock absorbing hole (4) between first group and second group of dividing plate, outer wall near the Inserting Tube (8) between second group of dividing plate and the 3rd group of dividing plate is provided with sound-absorption layer (6), the Inserting Tube (8) of second group of dividing plate and the 3rd group of dividing plate centre is provided with opening (7), the outer wall of the Inserting Tube (8) between the 3rd group of dividing plate and the 4th group of dividing plate is provided with sound-absorption layer (6).
3. New Buffering impedance type baffler according to claim 1, is characterized in that: described first group and second group of dividing plate and Inserting Tube (8) and expand between anechoic chamber (2) inwall and form shock absorbing room.
4. New Buffering impedance type baffler according to claim 1, is characterized in that: described second group and the 3rd group of dividing plate and Inserting Tube (8) and expand to be formed to subtract between anechoic chamber (2) inwall and flow room.
5. New Buffering impedance type baffler according to claim 1, is characterized in that: described shock absorbing hole (4) and subtract discharge orifice (7) and be provided with several, and is distributed on the outer wall of Inserting Tube (8).
6. New Buffering impedance type baffler according to claim 1, is characterized in that: all through between described Inserting Tube (8) and four groups of dividing plates.
7. New Buffering impedance type baffler according to claim 1, it is characterized in that: the part that described Inserting Tube (8) outer wall is provided with sound-absorption layer (6) is evenly provided with several through hole (12), be provided with stainless steel filter screen (10) outside through hole (12), outside stainless steel filter screen (10), be provided with cellophane or glass wool (11).
8. New Buffering impedance type baffler according to claim 1, is characterized in that: be provided with stiffening rib (13) between described stiffening ring (5) dividing plate (3), described expansion anechoic chamber (2) is also provided with resistive plug (14) outward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510206101.9A CN104832249A (en) | 2015-04-28 | 2015-04-28 | Novel buffer impedance type silencer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510206101.9A CN104832249A (en) | 2015-04-28 | 2015-04-28 | Novel buffer impedance type silencer |
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| CN104832249A true CN104832249A (en) | 2015-08-12 |
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| CN201510206101.9A Pending CN104832249A (en) | 2015-04-28 | 2015-04-28 | Novel buffer impedance type silencer |
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| CN107503822A (en) * | 2017-09-21 | 2017-12-22 | 永嘉县荣信科技有限公司 | A kind of automobile exhaust muffler |
| CN111145710A (en) * | 2019-12-26 | 2020-05-12 | 连云港江海机械设备制造有限公司 | Impedance composite muffler |
| CN111335995A (en) * | 2020-03-06 | 2020-06-26 | 贵州工程应用技术学院 | Diesel vehicle tail gas oil smoke filter equipment |
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