CN211906948U

CN211906948U - Emptying silencer

Info

Publication number: CN211906948U
Application number: CN202020440758.8U
Authority: CN
Inventors: 尹水天; 杜会龙; 谢飞龙
Original assignee: Jiangsu Tianyu Petrochemical Metallurgy Equipment Co ltd
Current assignee: Jiangsu Tianyu Petrochemical Metallurgy Equipment Co ltd
Priority date: 2020-03-30
Filing date: 2020-03-30
Publication date: 2020-11-10
Anticipated expiration: 2030-03-30

Abstract

The utility model relates to an unloading muffler, it includes the barrel, the bottom of barrel be equipped with outside communicating intake pipe, be provided with in the barrel and go up the voice coil loudspeaker voice coil and with go up the communicating voice coil loudspeaker voice coil that disappears down of voice coil loudspeaker voice coil, down the voice coil loudspeaker voice coil includes along the barrel circumference direction sets up the first amortization cotton on the barrel inner wall, it includes a plurality of coaxial and along the radial evenly distributed's of barrel a plurality of annular second amortization cotton and a plurality of annular board of punching a hole to go up the voice coil loudspeaker voice coil, the cotton interval distribution of second amortization is between two adjacent boards of punching a hole, and it has the cotton two of second amortization not filled it forms the sound channel of inhaling that is used for gas. The utility model has the advantages of the area of contact of the increased gas and the sound absorption material is in order to improve the noise elimination effect.

Description

Emptying silencer

Technical Field

The utility model belongs to the technical field of the technique of muffler and specifically relates to a unloading muffler is related to.

Background

A silencer is a device that prevents sound from propagating while allowing airflow to pass through, and is an important measure for eliminating air borne noise; the device is generally arranged on an air flow channel of air power equipment (such as a blower, an air compressor, a boiler exhaust port, a generator, a water pump and other equipment with high noise at an exhaust port) for reducing noise.

The existing Chinese patent with the granted publication number of CN102235207A provides a silencer, which comprises a shell, an inner core, air inlet holes and air outlet holes, wherein the air inlet holes and the air outlet holes are arranged on the shell, the inner core is provided with uniformly arranged silencing tubes, sound absorption glass wool is filled between the silencing tubes, the silencing tubes are provided with heat dissipation holes, and the wall of the inner core is provided with a shock pad.

The above prior art solutions have the following drawbacks: gas enters from the air inlet and is discharged from the air outlet after noise is absorbed by the silencing tubes and the sound absorption glass wool, however, in the technical scheme, the glass wool is filled between the silencing tubes, and the sound absorption glass wool has small contact area, so that the silencing effect is poor, and improvement is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a not enough to prior art exists, the utility model aims at providing an unloading muffler, its area of contact that has the increase gas and sound absorbing material is with the advantage that improves noise cancelling effect.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides an unloading muffler, includes the barrel, the bottom of barrel be equipped with outside communicating intake pipe, be provided with in the barrel and go up the voice coil loudspeaker voice coil and with go up the communicating voice coil loudspeaker voice coil that disappears down of voice coil loudspeaker voice coil, down the voice coil loudspeaker voice coil includes along the barrel circumference direction sets up the first amortization cotton on the barrel inner wall, it includes a plurality of coaxial and along the radial evenly distributed's of barrel a plurality of annular second amortization cotton and a plurality of annular board of punching a hole to go up the voice coil loudspeaker voice coil, the cotton interval distribution of second amortization is between two adjacent punching a hole boards, does not fill there are two of second amortization cotton cavity formation between the punching a hole board is used for.

Through adopting above-mentioned technical scheme, get into the intake pipe after the air compressor equipment is discharged, get into from the intake pipe and disappear the voice coil loudspeaker voice coil down, at first after the cotton amortization of first amortization, then get into and disappear the voice coil loudspeaker voice coil, gaseous from inhaling in the sound passageway, through the cotton amortization once more of second amortization that the multilayer set up, the cotton multilayer setting of second amortization has improved gaseous and sound absorbing material's area of contact greatly, and is better to the absorption effect of noise, further noise reduction.

The utility model discloses further set up to: a plurality of first reinforcing ribs which are uniformly distributed along the circumferential direction of the cylinder body are arranged in the sound absorption channel, and the two ends of the first reinforcing ribs in the width direction are connected to the two adjacent punching plates respectively.

Through adopting above-mentioned technical scheme, gaseous have from air compressor equipment discharge back and have certain velocity of flow, to punching the orifice plate and cause pressure, link together a plurality of boards of punching a hole through first strengthening rib, form overall structure, the stability of upper and lower stove voice coil loudspeaker voice coil improves, the deformation that the orifice plate caused is to punching to the gas pressure that significantly reduces.

The utility model discloses further set up to: the protective layer has all been wrapped up to the cotton lateral wall of first amortization and second amortization.

Through adopting above-mentioned technical scheme, the protective layer parcel is at the cotton lateral wall of amortization, protects the amortization cotton, has strengthened simultaneously to the cotton fixed of amortization, prevents in the use that the amortization cotton exposes, the departure.

The utility model discloses further set up to: a throttle pipe is arranged in the cylinder body and is communicated with the air inlet pipe, and a pipe cap is connected to one end of the throttle pipe, which is far away from the air inlet pipe; and throttling air holes for gas circulation are uniformly distributed on the pipe wall of the throttling pipe.

Through adopting above-mentioned technical scheme, gaseous from the air compressing equipment certain velocity of flow that has after discharging, with gaseous from intake pipe discharge throttle pipe, then from the blowout of the throttle gas pocket that sets up on the throttle pipe wall, the setting of throttle pipe and throttle gas pocket reduces gaseous velocity of flow to reduce gaseous pressure, make gaseous voice coil loudspeaker voice coil on steadily getting into, reduce the damage that gas pressure caused equipment, improve the security that equipment used simultaneously.

The utility model discloses further set up to: the jet pipe is arranged in the barrel body and is sleeved outside the throttle pipe, one end of the jet pipe in the length direction is connected to the bottom wall of the barrel body, and the other end of the jet pipe is provided with a sealing cover; and the wall of the injection pipe is uniformly distributed with injection air holes for air circulation.

By adopting the technical scheme, the gas is sprayed out from the throttle pipe through the throttle air hole and then enters the injection pipe, then is sprayed out from the injection air hole and then enters the barrel, the noise is reduced through the first noise reduction cotton, the flow speed of the gas is further reduced through the arrangement of the injection pipe and the injection air hole, and the gas pressure is further reduced.

The utility model discloses further set up to: and second reinforcing ribs are arranged between the inner wall of the barrel and the outer wall of the injection pipe and between the inner wall of the injection pipe and the outer wall of the throttle pipe.

By adopting the technical scheme, the barrel, the injection pipe and the throttle pipe are connected together by the second reinforcing rib, so that the injection pipe and the throttle pipe are fixed, and the stability of the equipment in the using process is improved.

The utility model discloses further set up to: the first silencing cotton and the second silencing cotton are both superfine glass cotton.

By adopting the technical scheme, the sound absorption effect of the superfine glass wool is excellent, and the superfine glass wool has the advantages of corrosion resistance, heat resistance, frost resistance, good earthquake resistance and convenience in construction.

The utility model discloses further set up to: the cylinder body is connected with an air duct communicated with the interior of the cylinder body, and an anti-vortex baffle is arranged in the air duct.

Through adopting above-mentioned technical scheme, the setting of preventing the vortex baffle plays the effect that prevents the vortex, prevents that the fluid from to section of thick bamboo wall direct impact.

The utility model discloses further set up to: the exit end of barrel is provided with the support frame, be connected with the weather enclosure that is used for sheltering from the exit end of barrel on the support frame.

Through adopting above-mentioned technical scheme, the weather enclosure is located the top of the exit end of barrel, shelters from the exit end, plays the effect of sheltering from the rainwater, reduces the rainwater and drips to the barrel inside from the exit end.

The utility model discloses further set up to: and an anti-bird net is arranged at the outlet end of the cylinder body.

Through adopting above-mentioned technical scheme, the setting of bird net plays the effect of sheltering from the exit end of barrel, prevents that the flying bird from getting into from the exit end and causing the flying bird damage and equipment to damage.

To sum up, the utility model discloses a beneficial technological effect does:

1. the gas is silenced again by the second silencing cotton arranged in multiple layers from the sound absorption channel, so that the contact area of the gas and a sound absorption material is greatly increased, the noise absorption effect is better, and the noise is further reduced;

2. the setting of throttle pipe, ejector sleeve reduces gaseous velocity of flow to reduce gaseous pressure, make gaseous sound circle on steadily getting into, reduce the damage that gas pressure caused equipment, improve the security that equipment used simultaneously.

Drawings

FIG. 1 is a schematic view of the structure of a flare muffler in the example.

Fig. 2 is a disassembled schematic diagram for embodying the protective layer structure in the embodiment.

In the figure, 1, a cylinder; 11. an air inlet pipe; 2. an upper voice coil; 21. punching a plate; 22. second silencing cotton; 23. a sound absorbing channel; 231. a first reinforcing rib; 3. a lower eliminating voice coil; 31. first noise reduction cotton; 32. a throttle pipe; 321. a pipe cap; 322. throttling the air hole; 33. an injector tube; 331. sealing the cover; 332. injecting air holes; 34. a second reinforcing rib; 4. a protective layer; 5. an air duct; 51. an anti-vortex baffle; 6. a support frame; 61. a rain-proof shed; 8. bird prevention net.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, the emptying silencer disclosed by the utility model comprises a cylinder 1, wherein the bottom wall of the cylinder 1 is connected with an air inlet pipe 11 communicated with the outside, an upper eliminating voice coil 2 and a lower eliminating voice coil 3 are arranged in the cylinder 1, the upper eliminating voice coil 2 is positioned at the upper half end of the cylinder 1, and the lower eliminating voice coil 3 is positioned at the lower half end of the cylinder 1; the lower silencing voice coil 3 comprises first silencing cotton 31 adhered to the inner side wall of the cylinder 1, and the first silencing cotton 31 is annularly distributed along the circumferential direction of the cylinder 1; a throttle pipe 32 welded with the air inlet pipe 11 is arranged in the cylinder 1, the throttle pipe 32 is positioned in the inner ring of the first silencing cotton 31, a pipe cap 321 for plugging a pipe orifice is welded at one end of the throttle pipe 32 far away from the direction of the air inlet pipe 11, and a plurality of throttle air holes 322 for gas to pass through are uniformly formed in the pipe wall of the throttle pipe 32; the injection pipe 33 is further arranged in the barrel body 1, the injection pipe 33 is sleeved outside the throttle pipe 32, a gap is formed between the inner side wall of the injection pipe 33 and the outer side wall of the throttle pipe 32, one end of the injection pipe 33 in the length direction is welded to the bottom wall of the barrel body 1, and the other end of the injection pipe 33 is welded with a sealing cover 331 so as to seal the throttle pipe 32 in the injection pipe 33; the upper voice coil 2 comprises a plurality of coaxial annular punching plates 21 which are uniformly distributed along the radial direction of the cylinder 1, and the punching plates 21 are supported by square steel welded on the inner wall of the cylinder 1; the upper voice coil 2 further comprises a plurality of annular second silencing cotton 22, the second silencing cotton 22 is distributed between two adjacent punching plates 21 at intervals, and a cavity between the two punching plates 21 which are not filled with the second silencing cotton 22 forms a sound absorption channel 23 for air to pass through; the gas is input from the gas inlet pipe 11, firstly enters the throttle pipe 32, passes through the throttle air hole 322 and is input between the inner wall of the injection pipe 33 and the outer wall of the throttle pipe 32, then passes through the injection air hole 332 and enters between the inner wall of the barrel 1 and the outer wall of the injection pipe 33, after being silenced by the first silencing cotton 31, the gas flows upwards, enters the upper silencing coil 2, flows from the sound absorption channel 23, and further absorbs the noise by the second silencing cotton 22.

Referring to fig. 1 and 2, the sound-absorbing duct 23 is provided with a plurality of first ribs 231, the first ribs 231 in each sound-absorbing duct 23 are uniformly distributed along the circumferential direction of the throttle pipe 32, and both ends of the first ribs 231 in the width direction are welded to the adjacent two perforated plates 21, respectively. First amortization cotton 31 and second amortization cotton 22 are superfine glass cotton, and have protective layer 4 at the outside parcel of first amortization cotton 31 and second amortization cotton 22, and protective layer 4 comprises stainless steel net and amortization cloth, wraps up first amortization cotton 31 and second amortization cotton 22 through stainless steel net and amortization cloth, prevents that first amortization cotton 31 and second amortization cotton 22 expose, fly out in the use.

Referring to fig. 1, second reinforcing ribs 34 are respectively arranged between the inner side wall of the cylinder 1 and the outer side wall of the injection pipe 33 and between the inner wall of the injection pipe 33 and the outer side wall of the throttle pipe 32, and the second reinforcing ribs 34 are welded on the pipe walls, so that the connection among the cylinder 1, the injection pipe 33 and the throttle pipe 32 is enhanced, and the overall stability of the embodiment is improved.

Referring to fig. 1, the bottom of the cylinder 1 is connected with an air duct 5 communicated with the inside of the cylinder, and an anti-vortex baffle 51 is arranged in the air duct 5. The supporting frame 6 is welded at the outlet end of the barrel body 1, the rain-proof shed 61 is fixed on the supporting frame 6 through screws, and the rain-proof shed 61 is positioned above the outlet end of the barrel body 1, so that the outlet end of the barrel body 1 is shielded, and rainwater is reduced from dropping into the barrel body 1; the anti-bird net 8 is fixed at the outlet end of the barrel body 1 through screws, the anti-bird net 8 is formed by weaving thin steel wires, the outlet end of the barrel body 1 is shielded, and flying birds are prevented from entering the barrel body 1.

The implementation principle of the embodiment is as follows: the present embodiment is generally installed on an airflow channel of an aerodynamic device (e.g., a blower, an air compressor, a boiler exhaust port, a generator, a water pump, etc.) where noise is relatively large at an exhaust port, the air inlet pipe 11 is fixed to the airflow channel through a flange, and the air is discharged from the device, enters the air inlet pipe 11, then enters the throttle pipe 32, passes through the throttle air hole 322, is input between the inner wall of the injector pipe 33 and the outer wall of the throttle pipe 32, then passes through the injector air hole 332, enters between the inner wall of the cylinder 1 and the outer wall of the injector pipe 33, is silenced by the first silencing cotton 31, then flows upward, enters the upper silencing coil 2, flows through the sound absorbing channel 23, further absorbs the noise by the second silencing cotton 22, and then is discharged from the outlet end of the cylinder 1.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides an unloading muffler, includes barrel (1), the bottom of barrel (1) be equipped with outside communicating intake pipe (11), its characterized in that: be provided with in barrel (1) and go up voice coil loudspeaker voice coil (2) and with last voice coil loudspeaker voice coil (3) that disappears down that the voice coil loudspeaker voice coil (2) communicate with each other, down eliminate voice coil loudspeaker voice coil (3) including set up first amortization cotton (31) on barrel (1) inner wall along barrel (1) girth direction, it includes a plurality of coaxial and along barrel (1) radial evenly distributed's a plurality of annular second amortization cotton (22) and a plurality of annular board (21) of punching a hole to go up voice coil loudspeaker voice coil (2), second amortization cotton (22) interval distribution is between two adjacent punching a hole boards (21), does not fill two that have second amortization cotton (22) cavity between punching a hole board (21) forms and is used for gaseous sound absorbing passageway (23) that pass through.

2. The emptying muffler as set forth in claim 1, wherein: a plurality of first reinforcing ribs (231) which are uniformly distributed along the circumferential direction of the barrel (1) are arranged in the sound absorption channel (23), and two ends of the width direction of the first reinforcing ribs (231) are respectively connected to two adjacent punching plates (21).

3. The emptying muffler as set forth in claim 1, wherein: the outer side walls of the first silencing cotton (31) and the second silencing cotton (22) are wrapped with protective layers (4).

4. The emptying muffler as set forth in claim 1, wherein: a throttle pipe (32) is arranged in the barrel body (1), the throttle pipe (32) is communicated with the air inlet pipe, and one end of the throttle pipe (32) far away from the air inlet pipe (11) is connected with a pipe cap (321); and throttling air holes (322) for gas to flow are uniformly distributed on the pipe wall of the throttling pipe (32).

5. The emptying muffler according to claim 4, wherein: an injection pipe (33) is arranged in the barrel body (1), the injection pipe (33) is sleeved outside the throttle pipe (32), one end of the injection pipe in the length direction is connected to the bottom wall of the barrel body (1), and a sealing cover (331) is arranged at the other end of the injection pipe; and injection air holes (332) for gas to flow are uniformly distributed on the wall of the injection pipe (33).

6. The emptying muffler according to claim 5, wherein: and second reinforcing ribs (34) are arranged between the inner wall of the barrel body (1) and the outer wall of the injection pipe (33) and between the inner wall of the injection pipe (33) and the outer wall of the throttle pipe (32).

7. The emptying muffler as set forth in claim 1, wherein: the first silencing cotton (31) and the second silencing cotton (22) are both superfine glass cotton.

8. The emptying muffler as set forth in claim 1, wherein: the barrel (1) is connected with an air duct (5) communicated with the interior of the barrel, and an anti-vortex baffle (51) is arranged in the air duct (5).

9. The emptying muffler as set forth in claim 1, wherein: the exit end of barrel (1) is provided with support frame (6), be connected with weather enclosure (61) that are used for sheltering from the exit end of barrel (1) on support frame (6).

10. The emptying muffler as set forth in claim 1, wherein: an anti-bird net (8) is arranged at the outlet end of the cylinder body (1).