CN214579418U

CN214579418U - Silencing pipeline

Info

Publication number: CN214579418U
Application number: CN202120980359.5U
Authority: CN
Inventors: 付红瑞
Original assignee: Beijing Top Sound Insulation Technology Co ltd
Current assignee: Beijing Top Sound Insulation Technology Co ltd
Priority date: 2021-05-08
Filing date: 2021-05-08
Publication date: 2021-11-02
Anticipated expiration: 2031-05-08

Abstract

The application relates to the technical field of sound insulation and noise reduction materials, in particular to a noise reduction pipeline which comprises an inner pipe, an outer pipe, an energy consumption layer and a noise reduction layer, wherein the outer pipe is sleeved on the outer side surface of the inner pipe; a plurality of groups of spiral flow guide convex ribs are arranged on the inner side surface of the inner pipe; a first sound insulation cavity is arranged in the outer pipe along the circumferential direction. Wherein, the energy consumption layer is including establishing the soundproof cotton on the outer tube lateral surface and establishing the damping felt on the soundproof cotton, the noise damping layer is including cladding sound absorption layer on damping felt lateral surface, establish the vibration reduction layer on sound absorption layer lateral surface and establish the isolation layer on the vibration reduction layer lateral surface. This application can improve the amortization of pipeline and fall the performance of making an uproar, makes the syllable-dividing noise reduction effect of pipeline better.

Description

Silencing pipeline

Technical Field

The application relates to the technical field of sound-insulating and noise-reducing materials, in particular to a silencing pipeline.

Background

At present, because people pursue quiet comfortable living and operational environment, often can use the material of making an uproar that gives sound insulation in the building fitment process, drainage pipe is the essential fitment ornamental material of interior decoration in the building, and common drainage pipe is single-layer construction, and when this kind of pipeline was used for high-rise building, because the inner wall is smooth, frictional force is little, and water flow potential energy is big, can produce great noise when rivers flow through from the pipeline to the diffusion is indoor.

Among the correlation technique, can set up the protruding muscle of spiral at the pipeline inner wall of individual layer structure, the bellied water conservancy diversion effect of spiral through the pipeline inner wall makes rivers be the heliciform whereabouts along the inside pipe wall, avoids rivers to flow the confusion to alleviate the frictional impact of rivers to the pipeline inner wall, in order to reach the mesh that the amortization was fallen and made an uproar.

In view of the above-mentioned related art, the inventor found that when the pipe drainage is performed only by providing the spiral ribs on the inner wall, although the water flow can be guided to reduce the impact of the water flow on the inner wall of the pipe, when the flow rate in the pipe is increased, the guiding function of the spiral ribs becomes less significant, and the noise reduction effect of the pipe is deteriorated.

SUMMERY OF THE UTILITY MODEL

In order to improve the amortization noise reduction performance of pipeline, make the sound insulation noise reduction effect of pipeline better, this application provides a amortization pipeline.

The application provides a amortization pipeline adopts following technical scheme:

a silencing pipeline comprises an inner pipe, an outer pipe sleeved on the outer side surface of the inner pipe, an energy consumption layer coated on the outer side surface of the outer pipe and a silencing layer coated on the outer side surface of the energy consumption layer;

a plurality of groups of spiral flow guide convex ribs are arranged on the inner side surface of the inner pipe;

a first sound insulation cavity is arranged in the outer pipe along the circumferential direction.

Through adopting above-mentioned technical scheme, the protruding muscle of spiral water conservancy diversion of inner tube can carry out the water conservancy diversion to rivers, plays preliminary amortization and falls the effect of making an uproar, and first syllable-dividing cavity on the outer tube enables the sound wave and propagates the consumption repeatedly at first syllable-dividing cavity inner wall to play the amortization once more and fall the effect of making an uproar. The energy dissipation layer in the outer pipe enables the sound wave energy to be further consumed and then outwards spread, and finally the noise is reduced by the noise reduction layer, so that the noise reduction effect of the pipeline is better.

Optionally, each group of spiral flow guide convex ribs is formed by integrally forming two tightly attached convex ribs.

Through adopting above-mentioned technical scheme, the surface area of the protruding muscle of bolt water conservancy diversion can be increased to two sand grip integrated into one piece of hugging closely to the area of contact of the protruding muscle of increase spiral water conservancy diversion and rivers, and then improve the water conservancy diversion effect of rivers, the effect of the amortization of making an uproar that falls that makes the water conservancy diversion produce is better.

Optionally, a second sound insulation cavity is arranged in the spiral flow guide convex rib along the length direction.

Through adopting above-mentioned technical scheme, the second gives sound insulation the cavity and enables in some sound wave direct conduction to the second gives sound insulation in the cavity to reciprocal reflection consumption on the second gives sound insulation the cavity inner wall, in order to reach the effect of amortization.

Optionally, the energy consumption layer comprises soundproof cotton arranged on the outer side surface of the outer pipe and a damping felt arranged on the soundproof cotton.

By adopting the technical scheme, the soundproof cotton and the damping felt can attenuate the transmission capacity of incident sound, thereby achieving the purposes of sound insulation and noise reduction.

Optionally, the surface of the soundproof cotton, which is attached to the outer pipe, is in the shape of an egg tray.

Through adopting above-mentioned technical scheme, make the sound wave circle around between the crest and the trough of egg support shape to weaken or even disappear, make the amortization noise reduction effect of pipeline better.

Optionally, the sound absorption layer comprises a sound absorption layer coated on the outer side surface of the damping felt, a vibration absorption layer arranged on the outer side surface of the sound absorption layer, and an isolation layer arranged on the outer side surface of the vibration absorption layer.

Through adopting above-mentioned technical scheme, the sound absorbing layer can absorb some volume, makes the noise that rivers produced partly consumed, and the vibration damping layer can reduce the pipeline and receive the vibration that rivers assaulted the production, and the isolation layer can play sealed effect of keeping apart, reduces the outside propagation of sound.

Optionally, the inner side surface of the sound absorption layer is uniformly distributed with sound deadening holes.

Through adopting above-mentioned technical scheme, when the noise that rivers impact pipeline inner wall produced penetrated the sound absorbing layer surface, the noise passed behind the noise damping hole by the dispersion, consumed the absorption with the inner wall reflection in the transmission of noise.

Optionally, the silencer further comprises a sealing layer coated on the outer side surface of the silencing layer.

Through adopting above-mentioned technical scheme, the leakproofness that the sealing layer enabled the gap between the sealing layer is better, can also the noise abatement outwards spread.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the protruding muscle of spiral water conservancy diversion of inner tube in this application can carry out the water conservancy diversion to rivers, plays preliminary amortization and falls the effect of making an uproar, and the first syllable-dividing cavity on the outer tube enables the sound wave and propagates the consumption repeatedly at first syllable-dividing cavity inner wall to play the amortization once more and fall the effect of making an uproar. The energy dissipation layer in the outer pipe can further dissipate the sound wave energy and then spread the sound wave energy outwards, and finally, the noise reduction layer is used for noise reduction, so that the noise reduction effect of the pipeline is better;

2. the sound absorption layer can absorb part of volume, so that part of noise generated by water flow is consumed, the vibration reduction layer can reduce vibration generated by impact of the water flow on the pipeline, and the isolation layer can play a role in sealing and isolating and reduce outward transmission of sound;

3. the second sound insulation cavity in this application enables in some sound wave direct conduction to the second sound insulation cavity to reciprocal reflection consumption on second sound insulation cavity inner wall, in order to reach the effect of amortization.

Drawings

Fig. 1 is a schematic overall structure diagram of a sound-deadening duct disclosed in an embodiment of the present application.

Fig. 2 is a schematic structural diagram of the energy consumption layer after being unfolded in the embodiment of the application.

Fig. 3 is a schematic structural view of the sound deadening layer after being unfolded in the embodiment of the present application.

Description of reference numerals: 11. an inner tube; 111. spiral flow guiding convex ribs; 112. a second sound-insulating cavity; 21. an outer tube; 211. a first sound-insulating cavity; 31. an energy consuming layer; 311. sound insulation cotton; 312. a damping felt; 41. a sound-deadening layer; 411. a sound absorbing layer; 412. a vibration damping layer; 413. an isolation layer; 4111. a silencing hole; 51. and (7) sealing the layer.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

In the correlation technique, a pipeline inner wall adds the protruding muscle of spiral in addition, and has seted up the bloop along the axis direction on the pipeline, this kind of amortization pipeline is better than the pipeline noise cancelling effect of individual layer structure, but the noise of amortization downthehole wall consumption is limited, consequently when discharge is big, the effect of making an uproar falls in the amortization of pipeline is still relatively poor, consequently, the disclosed bloop pipeline of this application embodiment has better amortization noise cancelling effect, can be used for some interior decoration projects that require the noise to be higher, in order to reduce the indoor noise.

The embodiment of the application discloses amortization pipeline. Referring to fig. 1, the pipe includes an inner pipe 11, an outer pipe 21, a dissipative layer 31 and a sound damping layer 41. Wherein, the inner pipe 11 supplies water flow to pass through, the outer pipe 21 is sleeved on the outer side surface of the inner pipe 11, the energy consumption layer 31 is coated on the outer side surface of the outer pipe 21, and the sound attenuation layer 41 is coated on the outer side surface of the energy consumption layer 31.

Specifically, referring to fig. 1, inner tube 11 is PVC material extrusion molding, has set up the protruding muscle 111 of multiunit spiral water conservancy diversion on the medial surface of inner tube 11, and the protruding muscle 111 of spiral water conservancy diversion is the heliciform setting along the axis direction of inner tube 11, and the protruding muscle 111 of spiral water conservancy diversion and inner tube 11 integrated into one piece, and the interval between the protruding muscle 111 of same every group spiral water conservancy diversion equals.

Referring to fig. 1, in order to increase the contact area between the spiral flow guiding ribs 111 and the water flow, two tightly adhered protruding strips of each group of spiral flow guiding ribs 111 are integrally formed. In addition, in order to improve the noise reduction performance of the pipeline, a second sound insulation cavity 112 is arranged in the spiral flow guide convex rib 111 along the length direction.

The outer tube 21 is integrally formed with the inner tube 11, a plurality of first soundproof cavities 211 are circumferentially arranged in the outer tube 21, and an inner wall of each first soundproof cavity 211 extends in a direction parallel to a longitudinal direction of the outer tube 21. When the noise generated by the water flow impacting the inner side of the inner pipe 11 is propagated outward, the sound is reflected in the first soundproof cavities 211 and the sound wave energy is consumed to reduce the noise diffused outward.

Referring to fig. 1 and 2, the energy consumption layer 31 includes soundproof cotton 311 and a damping felt 312, the soundproof cotton 311 and the damping felt 312 are bonded and fixed in a compound manner and bound to the outer tube by iron wires, and of course, the soundproof cotton 311 and the damping felt 312 may also be coated on the outer side surface of the outer tube 21 in a bonding manner.

In a possible embodiment of the present application, in order to improve the soundproof effect of the soundproof cotton 311, referring to fig. 2, the surface of the soundproof cotton 311, which is attached to the outer tube 21, is set in an egg tray shape, and when the sound wave contacts the soundproof cotton 311, the sound wave is reflected between the peak and valley surfaces of the egg tray shape and consumed, so that the noise reduction effect of the pipe is better.

Referring to fig. 1 and 3, the sound-deadening layer 41 includes a sound-absorbing layer 411, a vibration-damping layer 412, and an insulating layer 413. Wherein, the sound absorption layer 411 is coated on the outer side surface of the damping felt 312 to serve as a first sound-deadening barrier of the sound-deadening layer 41, and the sound absorption layer 411 may be a metal sound-insulating sheet, which may be an aluminum foil sound-insulating sheet. The damping layer 412 may be made of butyl rubber, and the damping layer 412 and the sound absorption layer 411 may be connected by fixing and hot press molding. The isolation layer 413 may be adhered to the surface of the vibration damping layer 412 using kraft paper, and adhered to the outer side surface of the damping felt 312 with the vibration damping layer 412 and the sound absorbing layer 411 wrapped.

In addition, in order to make the sound absorption layer 411 have better sound absorption and noise reduction effects, sound insulation holes 4111 are uniformly and equally spaced on the inner side surface of the sound absorption layer 411, and the sound insulation holes 4111 may be circular holes, hexagonal holes, or honeycomb-shaped holes. When the sound wave is transmitted to the sound absorption layer 411, the sound wave is dispersed by the sound deadening hole 4111 and enters the sound deadening hole 4111, and a resonance phenomenon occurs, so that the sound wave capability is consumed, thereby achieving the purpose of improving the sound absorption and noise reduction performance of the sound absorption layer 411.

Further, referring to fig. 1, still cladding has sealing layer 51 on the lateral surface of amortization layer 41, and sealing layer 51 can be aluminium foil paper, and including sealing layer 51 can seal amortization layer 41, improve the leakproofness, also can reflect the sound wave simultaneously, make the amortization noise reduction effect of pipeline better. In the present embodiment, in order to improve the sealing property when the sealing layer 51 is coated, the sealing layer 51 may be spirally wound on the sound-deadening layer 41.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A muffling conduit, comprising: comprises an inner pipe (11), an outer pipe (21) sleeved on the outer side surface of the inner pipe (11), an energy consumption layer (31) coated on the outer side surface of the outer pipe (21) and a silencing layer (41) coated on the outer side surface of the energy consumption layer (31);

a plurality of groups of spiral flow guide convex ribs (111) are arranged on the inner side surface of the inner pipe (11);

a first sound insulation cavity (211) is formed in the outer pipe (21) along the circumferential direction.

2. A sound-damping duct as claimed in claim 1, characterized in that: each group of spiral flow guide convex ribs (111) is formed by integrally forming two tightly attached convex strips.

3. A sound-damping duct as claimed in claim 2, characterized in that: and a second sound insulation cavity (112) is arranged in the spiral flow guide convex rib (111) along the length direction.

4. A sound-damping duct as claimed in claim 1, characterized in that: the energy consumption layer (31) comprises soundproof cotton (311) arranged on the outer side surface of the outer pipe (21) and damping felt (312) arranged on the soundproof cotton (311).

5. A sound-damping duct according to claim 4, characterised in that: the surface of the soundproof cotton (311) attached to the outer pipe (21) is egg tray-shaped.

6. A sound-damping duct according to claim 4, characterised in that: the noise reduction layer (41) comprises a sound absorption layer (411) coated on the outer side surface of the damping felt (312), a vibration reduction layer (412) arranged on the outer side surface of the sound absorption layer (411) and an isolation layer (413) arranged on the outer side surface of the vibration reduction layer (412).

7. A sound-damping duct as claimed in claim 6, wherein: silencing holes (4111) are uniformly distributed on the inner side surface of the sound absorption layer (411).

8. A sound-damping duct according to any one of claims 1 to 7, characterised in that: and the outer side surface of the silencing layer (41) is coated with a sealing layer (51).