CN214305873U - Noise reduction device for exhaust pipe - Google Patents

Abstract

The utility model discloses a device of making an uproar falls in blast pipe relates to environmental protection equipment technical field, include exhaust duct and fall the equipment of making an uproar, exhaust duct's outer wall and the inner wall fixed connection who falls the equipment of making an uproar, the inner wall that falls the equipment of making an uproar is provided with the sound-proof housing, the outer wall of sound-proof housing and the inner wall fixed connection who falls the equipment of making an uproar, the inside wall that falls the equipment of making an uproar is provided with connects corner fittings, elastic component, shock attenuation acoustic celotex board and contact and takes the piece. The utility model discloses an adopt the combination of shock attenuation acoustic celotex board and elastic component, when making an uproar falls to exhaust duct conveniently, can reduce its vibrations that produce in exhaust process again to through the cooperation of contact piece and sound-proof housing, when exhaust duct's noise or vibration range are too big, the shock attenuation acoustic celotex board just can receive the elastic potential energy of elastic component and contact the piece and contact, and with the noise through touching the piece transmission for the sound-proof housing of taking, the noise that has avoided exhaust duct to produce spreads outward.

Description

Noise reduction device for exhaust pipe

Technical Field

The utility model relates to an environmental protection equipment technical field, concretely relates to device of making an uproar falls in blast pipe.

Background

In industrial production, the exhaust emptying noise is generally generated by instability of high-speed airflow flow, the flowing airflow has the characteristics of high temperature, high pressure and high speed, the flowing airflow is a main source of noise in the industries of chemical engineering, petroleum, electric power, pharmacy and the like, the intensity of the emitted noise is high, the frequency spectrum is wide, the spread range is wide, and the health of operators and the production and life of residents in peripheral areas of enterprises are seriously influenced.

At present, in the process of making an uproar is falling to the blast pipe, because the air current atmospheric pressure in the blast pipe is too big, make the blast pipe produce rocking of certain range easily, lead to falling the device of making an uproar and take place to damage easily to the spreading nature of noise is wide, can not fall the noise to the blast pipe many times, and the suitability variation of this device of making an uproar is fallen to the blast pipe, consequently needs carry out the structure innovation and solves specific problem.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is to provide an exhaust pipe noise reduction device, wherein one purpose is to achieve the effect of reducing noise and absorbing shock, and solve the problem that the noise reduction effect is not good due to the overlarge vibration amplitude of the exhaust pipe; the other purpose is to solve the problem of preventing noise diffusion in the noise reduction process so as to achieve the effect of reducing noise for multiple times.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:

the utility model provides a device of making an uproar falls in blast pipe, includes exhaust duct and the equipment of making an uproar falls, exhaust duct's the outer wall and the inner wall fixed connection who falls the equipment of making an uproar, the inner wall that falls the equipment of making an uproar is provided with the sound-proof housing, the outer wall of sound-proof housing and the inner wall fixed connection who falls the equipment of making an uproar, the inside wall that falls the equipment of making an uproar is provided with and connects corner fittings, elastic component, shock attenuation acoustic celotex board and contact overlap block, the outer wall of connecting the corner fittings and the outer wall welding of the equipment of making an uproar falls, it is located the both sides setting of the equipment of making an uproar to connect the corner fittings.

The utility model discloses technical scheme's further improvement lies in: one side of elastic component and the inside wall fixed connection of the equipment of making an uproar that falls, the outer wall of shock attenuation acoustic celotex board and one side fixed connection of elastic component, the shock attenuation acoustic celotex board through the elastic component that sets up with fall the equipment elastic connection of making an uproar, the outer wall that the piece was taken in the contact is connected with the inner wall of the equipment of making an uproar that falls embeddedly.

The utility model discloses technical scheme's further improvement lies in: one side of the contact block is fixedly connected with the outer wall of the sound-proof housing, and the outer wall of the contact block is in lap joint with the outer wall of the shock-absorbing sound-proof plate.

The utility model discloses technical scheme's further improvement lies in: the inner wall of shock attenuation acoustic celotex board is provided with conduction pipe, noise transmission pipe and noise diffusion tube, the outer wall of conduction pipe is connected with the inner wall of shock attenuation acoustic celotex board is inlayed admittedly, the bottom of conduction pipe and the inner wall through connection of noise transmission pipe, the outer wall of noise transmission pipe and the inner wall through connection of noise diffusion tube, the outer wall fixed mounting of shock attenuation acoustic celotex board has the laminating to fill up, the bottom that the laminating filled up and the top fixed connection of conduction pipe.

The utility model discloses technical scheme's further improvement lies in: the inner wall of the noise diffusion pipe is provided with a circulating pipe, a flow dividing pipe, a flow collecting pipe and sound insulation medium cotton, the inner wall of the circulating pipe is in through connection with the outer wall of the flow dividing pipe, the outer wall of the circulating pipe is in through connection with the inner wall of the flow collecting pipe, the outer wall of the sound insulation medium cotton is fixedly connected with the inner wall of the noise diffusion pipe, the inner wall of the sound insulation medium cotton is fixedly connected with the outer wall of the flow dividing pipe, and the sound insulation medium cotton is located on two sides of the flow collecting pipe and symmetrically arranged.

The utility model discloses technical scheme's further improvement lies in: elastic component and shock attenuation acoustic celotex board homodisperse set up the inside wall at the equipment of making an uproar that falls, the both sides setting that the piece is located shock attenuation acoustic celotex board is taken in the contact.

Owing to adopted above-mentioned technical scheme, the utility model discloses relative prior art, the technological progress who gains is:

1. the utility model provides a device of making an uproar falls in blast pipe, it is exquisite through the design, adopt the combination of shock attenuation acoustic celotex board and elastic component, when making an uproar falls to exhaust duct conveniently, can reduce its vibrations that produce in exhaust process again, and take the cooperation of piece and sound-proof housing through the contact, when exhaust duct's noise or vibration range are too big, the shock attenuation acoustic celotex board just can receive the elastic potential energy of elastic component and contact and take the piece to contact, and take the piece transmission for the sound-proof housing through the contact with the noise, the noise outdiffusion that exhaust duct produced has been avoided, and through setting up the cooperation of connecting the corner fitting, the setting of making an uproar is installed on exhaust duct conveniently will fall.

2. The utility model provides a blast pipe noise reduction device sets up through the combination that adopts laminating pad, conduction pipe, noise transmission pipe and noise diffusion tube, and the laminating pad contacts with exhaust duct's surface, has absorbed certain noise to the at utmost to transmit the noise to the inside of noise diffusion tube, through the diffusion of the continuous noise abatement of sound-proof medium in the noise diffusion tube, the noise that produces exhaust duct is fallen to the at utmost.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a sectional view of the noise reduction device of the present invention;

FIG. 3 is a schematic view of the structure of the damping and sound-insulating board of the present invention;

fig. 4 is a schematic view of the structure of the noise diffuser according to the present invention.

In the figure: 1. an exhaust duct; 2. a noise reduction device; 3. a sound-proof housing; 4. connecting corner fittings; 5. an elastic member; 6. a shock absorbing and sound insulating plate; 7. a contact block; 8. attaching a pad; 9. a conducting tube; 10. a noise transfer tube; 11. a noise diffuser tube; 12. a flow-through tube; 13. a shunt tube; 14. a header pipe; 15. the sound insulation medium cotton.

Detailed Description

The present invention will be described in further detail with reference to the following examples:

example 1

As shown in fig. 1-4, the utility model provides a device of making an uproar falls in blast pipe, including exhaust duct 1 and the equipment of making an uproar 2 falls, exhaust duct 1's outer wall and the inner wall fixed connection who falls the equipment of making an uproar 2, the inner wall of the equipment of making an uproar 2 that falls is provided with sound-proof housing 3, the outer wall of sound-proof housing 3 and the inner wall fixed connection who falls the equipment of making an uproar 2, the inside wall of the equipment of making an uproar 2 that falls is provided with connects corner fittings 4, elastic component 5, shock attenuation acoustic celotex board 6 and contact take piece 7, connect the outer wall of corner fittings 4 and the outer wall welding of the equipment of making an uproar 2 that falls, connect the corner fittings 4 and be located the both sides setting of the equipment of making an uproar 2 that falls.

In this embodiment, the quantity of connecting corner fittings 4 supplies to be four, and two are a set of, will fall the equipment of making an uproar 2 respectively and link together, it installs on exhaust duct 1's surface to be convenient for fall the equipment of making an uproar 2, and the cooperation of the elastic component 5 and the shock attenuation acoustic celotex board 6 that set up, make the equipment of making an uproar 2 possess certain elasticity, can laminate inseparabler with exhaust duct 1, and the contact of setting is taken piece 7 and is in order to further transmit the noise in the inside of shock attenuation acoustic celotex board 6 to the inside of acoustic celotex cover 3, soundproof effect has been increased.

Example 2

As shown in fig. 2-3, on the basis of embodiment 1, the utility model provides a technical solution: one side of an elastic part 5 is fixedly connected with the inner side wall of a noise reduction device 2, the outer wall of a shock absorption sound insulation board 6 is fixedly connected with one side of the elastic part 5, the shock absorption sound insulation board 6 is elastically connected with the noise reduction device 2 through the arranged elastic part 5, the outer wall of a contact block 7 is fixedly connected with the inner wall of the noise reduction device 2, one side of the contact block 7 is fixedly connected with the outer wall of a sound insulation cover 3, the outer wall of the contact block 7 is lapped with the outer wall of the shock absorption sound insulation board 6, the inner wall of the shock absorption sound insulation board 6 is provided with a conduction pipe 9, a noise transmission pipe 10 and a noise diffusion pipe 11, the outer wall of the conduction pipe 9 is fixedly connected with the inner wall of the shock absorption sound insulation board 6, the bottom of the conduction pipe 9 is communicated with the inner wall of the noise transmission pipe 10, the outer wall of the noise transmission pipe 10 is communicated with the inner wall of the noise diffusion pipe 11, the outer wall of the shock absorption sound insulation board 6 is fixedly provided with a joint pad 8, the joint pad 8 is contacted with the surface of an exhaust pipeline 1, certain noise has been absorbed to the at utmost, and the laminating pad 8 passes through the inside that conduction pipe 9 transmits to noise transmission pipe 10 with absorptive noise, transmit the noise to the inside of noise diffusion tube 11 by noise transmission pipe 10, the noise that produces exhaust duct 1 to the at utmost is fallen and is made an uproar, the laminating pad 8 the bottom and the top fixed connection of conduction pipe 9, elastic component 5 and the inside wall of shock attenuation acoustic celotex board 6 homodisperse setting at the equipment of making an uproar 2 falls, the both sides setting that piece 7 is located shock attenuation acoustic celotex board 6 is taken in the contact.

Example 3

As shown in fig. 4, on the basis of the embodiments 1 and 2, the utility model provides a technical solution: preferably, the inner wall of the noise diffusion pipe 11 is provided with a flow pipe 12, a shunt pipe 13, a collecting pipe 14 and a sound insulation medium cotton 15, the inner wall of the flow pipe 12 is communicated with the outer wall of the shunt pipe 13, the outer wall of the flow pipe 12 is communicated with the inner wall of the collecting pipe 14, the outer wall of the sound insulation medium cotton 15 is fixedly connected with the inner wall of the noise diffusion pipe 11, the flow pipe 12 transmits the noise transmitted from the inside of the noise transmission pipe 10 to the inside of the noise diffusion pipe 11, and, in the course of transmission, diffused from the shunt pipe 13 into the interior of the sound-insulating medium sponge 15, and the noise in the interior of the flow pipe 12 is finally transmitted to the interior of the collecting main 14, therefore, the sound insulation medium cotton 15 is uniformly diffused into the sound insulation medium cotton 15, the noise reduction effect is further improved, the inner wall of the sound insulation medium cotton 15 is fixedly connected with the outer wall of the shunt pipe 13 in an embedded mode, and the sound insulation medium cotton 15 is symmetrically arranged on two sides of the collecting pipe 14.

The working principle of the exhaust pipe noise reduction device is as follows:

as shown in fig. 1-4, the utility model discloses at first will fall equipment of making an uproar 2 covers on exhaust duct 1, and will connect corner fittings 4 interconnect, when exhaust duct 1 is at the in-process that produces the noise, just can be through laminating pad 8 and conduction pipe 9, the cooperation of noise transmission pipe 10, transmit the noise to the inside of noise diffusion pipe 11, it makes an uproar to fall for the first time, if exhaust duct 1's noise and vibration amplitude are too big, just can make the production of shock attenuation acoustic celotex board 6 rock, and shock attenuation acoustic celotex board 6 can take piece 6 with the contact to contact and contact, take piece 6 transmission to sound-proof housing 3 through the contact with the noise, reach the process of making an uproar of falling for the second time.

The present invention has been described in detail with reference to the above general description, but it will be apparent to one of ordinary skill in the art that modifications and improvements can be made to the invention. Therefore, modifications or improvements without departing from the spirit of the invention are within the scope of the invention.

Claims (6)

1. The utility model provides a device of making an uproar falls in blast pipe, includes exhaust duct (1) and equipment of making an uproar (2) fall, the outer wall of exhaust duct (1) and the inner wall fixed connection of equipment of making an uproar (2) fall, its characterized in that: the inner wall of equipment of making an uproar (2) falls is provided with sound-proof housing (3), the outer wall of sound-proof housing (3) and the inner wall fixed connection of equipment of making an uproar (2) fall, the inside wall of equipment of making an uproar (2) of falling is provided with connects corner fittings (4), elastic component (5), shock attenuation acoustic celotex board (6) and contact and takes piece (7), the outer wall of connecting corner fittings (4) and the outer wall welding of the equipment of making an uproar (2) of falling, connect the both sides setting that corner fittings (4) are located the equipment of making an uproar (2) of falling.

2. The exhaust pipe noise reduction device according to claim 1, wherein: one side of elastic component (5) and the inside wall fixed connection of equipment of making an uproar (2) fall, the outer wall of shock attenuation acoustic celotex board (6) and one side fixed connection of elastic component (5), shock attenuation acoustic celotex board (6) are through elastic component (5) and the equipment of making an uproar (2) elastic connection that fall that set up, the outer wall that the contact was taken piece (7) is connected with the inner wall of the equipment of making an uproar (2) inlays admittedly.

3. The exhaust pipe noise reduction device according to claim 1, wherein: one side of the contact block (7) is fixedly connected with the outer wall of the sound-proof cover (3), and the outer wall of the contact block (7) is in lap joint with the outer wall of the shock-absorbing sound-proof plate (6).

4. The exhaust pipe noise reduction device according to claim 1, wherein: the inner wall of shock attenuation acoustic celotex board (6) is provided with conduction pipe (9), noise transmission pipe (10) and noise diffusion tube (11), the outer wall of conduction pipe (9) is connected with the inner wall of shock attenuation acoustic celotex board (6) is inlayed admittedly, the bottom of conduction pipe (9) and the inner wall through connection of noise transmission pipe (10), the outer wall of noise transmission pipe (10) and the inner wall through connection of noise diffusion tube (11), the outer wall fixed mounting of shock attenuation acoustic celotex board (6) has laminating pad (8), the laminating pad (8) the bottom and the top fixed connection of conduction pipe (9).

5. The exhaust pipe noise reduction device according to claim 4, wherein: the inner wall of noise diffusion pipe (11) is provided with runner pipe (12), shunt tubes (13), pressure manifold (14) and sound insulation medium silk floss (15), the inner wall of runner pipe (12) and the outer wall through connection of shunt tubes (13), the outer wall of runner pipe (12) and the inner wall through connection of pressure manifold (14), the outer wall of sound insulation medium silk floss (15) and the inner wall fixed connection of noise diffusion pipe (11), the inner wall of sound insulation medium silk floss (15) is connected with the outer wall of shunt tubes (13) in an embedded manner, and sound insulation medium silk floss (15) are located the bilateral symmetry setting of pressure manifold (14).

6. The exhaust pipe noise reduction device according to claim 1, wherein: elastic component (5) and shock attenuation acoustic celotex board (6) homodisperse set up the inside wall at equipment of making an uproar (2) falls, the both sides setting that contact piece (7) are located shock attenuation acoustic celotex board (6) is taken.

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