CN211788147U - Novel combined type sound absorption screen muffler - Google Patents

Abstract

The utility model discloses a novel combined type sound-absorbing screen muffler, the novel nipple rectifier comprises a cylindrical shel, be equipped with journal stirrup and lug on the staving, the barrel comprises barrel and last barrel down, barrel and last barrel inner wall are equipped with noise elimination material down, be equipped with sealing connection board, its characterized in that down between barrel and the last barrel: the lower barrel is internally provided with a connecting pipe and an expansion body, the expansion body is sleeved on the periphery of the connecting pipe, the bottom of the connecting pipe extends downwards to the outer side of the bottom of the lower barrel, the bottom of the lower barrel is provided with a sealing bottom plate, and the sealing bottom plate is provided with a connecting pipe flange for fixing the connecting pipe; the silencing device comprises an upper barrel, a silencing screen plate is arranged in the upper barrel, a sealing top plate is arranged at the top of the upper barrel, and two ends of the silencing screen plate are respectively fixed on the sealing top plate and a sealing connecting plate through inserting grooves; the utility model discloses simple structure, it is nimble convenient to dismantle the connection, and greatly reduced input cost satisfies the effect of making an uproar that falls of amortization simultaneously, is worth promoting.

Description

Novel combined type sound absorption screen muffler

Technical Field

The utility model relates to a buggy sampling device, especially a novel combined type acoustic screen muffler.

Background

The composite silencer is one of impedance silencers, combines sound absorption and sound reflection properly, has the characteristics of eliminating middle and high frequency noise by the resistance silencer and eliminating low and middle frequency noise by the resistance silencer, and has a broadband silencing effect. Traditional combined type muffler adopts that the welding mode is fixed, in case crackle or explosion takes place, only can change the damage part again, has increased the cost of maintenance of silencer, and it is complicated to dismantle maintenance procedure process simultaneously, the utility model discloses a novel combined type sound-absorbing screen muffler, through the butt joint pipe, the expansion body utilizes flange joint, when guaranteeing noise cancelling effect, changes traditional welded fastening into flange bolted connection, when needs change the maintenance, only need dismantle the screw, take out the takeover in the barrel or expand the appearance body or accomplish the change of noise cancelling screen through dismantling the slot, improved the convenience of maintenance greatly, reduce the input cost of muffler, be worth promoting.

SUMMERY OF THE UTILITY MODEL

The utility model discloses there is the problem that maintenance difficulty, replacement cost are high to current muffler, provide one kind can convenient to detach maintenance, just trade the convenience, ensure the muffler of noise cancelling effect simultaneously, concrete scheme is as follows:

the utility model provides a novel combined type sound absorption screen muffler, includes the barrel, be equipped with journal stirrup and lug on the staving, the barrel comprises barrel and last barrel down, barrel and last barrel inner wall are equipped with noise elimination material down, be equipped with sealing connection board, its characterized in that down between barrel and the last barrel: the device comprises a lower barrel body, wherein a connecting pipe and an expansion body are arranged in the lower barrel body, the expansion body is sleeved on the periphery of the connecting pipe, the expansion body is single or multiple, the bottom of the connecting pipe extends downwards to the outer side of the bottom of the lower barrel body, a sealing bottom plate is arranged at the bottom of the lower barrel body, and a connecting pipe flange for fixing the connecting pipe is arranged on the sealing bottom plate; the silencing device comprises an upper barrel, wherein a silencing screen plate is arranged in the upper barrel, a sealing top plate is arranged at the top of the upper barrel, and two ends of the silencing screen plate are fixed on the sealing top plate and the sealing connecting plate through inserting grooves respectively.

Furthermore, the silencing screen plate and the cylinder are of a plurality of groups of concentric circular structures or a plurality of groups of vertical plate structures which are arranged in parallel.

Further, the vertical plate structure is perpendicular to the cylinder sealing top plate.

Furthermore, the bottom of the expansion body is fixedly connected to the sealing bottom plate through an expansion flange.

Furthermore, the silencing materials arranged on the walls of the upper barrel body and the lower barrel body are respectively fixedly connected with the sealing top plate, the sealing connecting plate and the sealing bottom plate through bolts.

Furthermore, the slots are respectively oppositely arranged on the sealing top plate and the sealing connecting plate, and the cross sections of the slots are U-shaped structures.

The utility model discloses following beneficial effect has:

the utility model discloses simple structure, lower barrel bottom has set up sealing plate, be located on sealing plate through the flange of takeover and dilatation flange respectively with the takeover, dilatation body fixed connection, be located the noise reduction screen that sets up in the barrel simultaneously, be fixed in barrel top and bottom respectively with its both ends through the slot, it is nimble convenient to dismantle the connection, in case take place the barrel inner structure to damage, only need dismantle flange or slot when needing to be changed, carry out its inner structure's maintenance or change, it is simple and convenient, greatly reduced input cost, satisfy the effect of noise reduction simultaneously, be worth promoting.

Drawings

Fig. 1 is a schematic structural view of a novel composite sound absorbing screen silencer.

Fig. 2 is a partially enlarged schematic view of a in fig. 1.

Fig. 3 is a partially enlarged schematic view of B in fig. 1.

Fig. 4 is a schematic top view of the structure of fig. 1, wherein the sound attenuating panel is a structural plumbing panel.

FIG. 5 is a schematic top view of the structure of FIG. 1, wherein the muffler screen is shown in a concentric configuration.

Detailed Description

The invention will be further explained with reference to the drawings:

as shown in fig. 1 and 2:

a novel combined type sound absorption screen silencer comprises a barrel body, wherein support lugs 10 and lifting lugs 11 are arranged on the barrel body, the barrel body is composed of a lower barrel body 1 and an upper barrel body 2, silencing materials 15 are arranged on the inner walls of the lower barrel body 1 and the upper barrel body 2, a sealing connecting plate 4 is arranged between the lower barrel body 1 and the upper barrel body 2, the lower barrel body 1 is internally provided with a connecting pipe 7 and an expansion body 6, the expansion body 6 is sleeved on the periphery of the connecting pipe 7, the expansion body 6 is provided with one or more than one, the bottom of the connecting pipe 7 extends downwards to the outer side of the bottom of the lower barrel body 1, a sealing bottom plate 5 is arranged at the bottom of the lower barrel body 1, and a connecting pipe flange 8 is arranged on the sealing bottom plate 5 and used for fixing the; go up barrel 2, be equipped with amortization screen panel 12 in going up barrel 2, go up barrel 2 top and be equipped with sealed roof 3, amortization screen panel 12 both ends are fixed in on sealed roof 3 and the sealing connection board 4 through slot 13 respectively.

Preferably, the noise reduction screen plate 12 and the cylinder are a plurality of groups of concentric circular structures or a plurality of groups of vertical plate structures arranged in parallel.

Preferably, the vertical plate structure is arranged perpendicular to the cylinder sealing top plate 3.

Preferably, the bottom of the expansion body 6 is fixedly connected to the sealing bottom plate 5 through an expansion flange 9.

Preferably, the silencing material 15 arranged on the cylinder walls of the upper cylinder 2 and the lower cylinder 1 is fixedly connected with the sealing top plate 3, the sealing connecting plate 4 and the sealing bottom plate 5 through bolts 14.

Preferably, the insertion grooves 13 are respectively oppositely arranged on the sealing top plate 3 and the sealing connecting plate 4, and the cross sections of the insertion grooves are of U-shaped structures.

Example (b): when pressure and sound enter from the connecting pipe 7, the pressure and the sound are dispersed to the side surface by a plurality of small holes arranged on the connecting pipe 7 to achieve the effect of partial pressure and flow distribution, then enter the expansion body 6, are distributed by a plurality of small holes arranged on the expansion body 6, impact into a silencing material 15 arranged on the inner wall of the lower cylinder body 1, then one part is absorbed, the other part is upwards reflected into the expansion body, the expansion body 6 can be provided with a single or a plurality of silencing screens which form different grades to carry out silencing and noise reduction according to requirements, a plurality of silencing screens with concentric circle structures or a plurality of silencing screens with mutually parallel vertical plate structures are arranged in the upper cylinder body, the sound is further reflected and reduced, the reflection of the sound at the silencing screens 12 is complicated, the sound is continuously reflected and absorbed by the silencing screens, and the silencing effect of the silencer is realized; the utility model discloses the takeover 7 and the dilatation body 6 that set up adopt takeover flange 8 and dilatation flange 9 to connect respectively, replace traditional welded fastening mode, conveniently change the accessory and increase the noise elimination effect of takeover 7 and dilatation body 6, the fixed knot who sets up the amortization screen panel 12 in upper barrel 2 simultaneously changes to be fixed with slot 13 and conveniently maintains and changes, only need to change the amortization screen panel 12 of corresponding model and just can take on the initiative and reach the noise elimination effect; in addition, the silencing materials 15 arranged on the inner walls of the lower barrel 1 and the upper barrel 2 are fixedly connected by bolts 14 instead of the traditional welding and fixing mode, so that when the silencing materials 15 need to be replaced, the replacement is not needed destructively, and the screws are directly removed to draw out the fixed barrel to achieve the purpose of replacement; the utility model discloses simple structure when guaranteeing splendid noise cancelling effect, in maintenance or change in-process, its degree of difficulty of greatly reduced and cost are worth promoting.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered within the protection scope of the present invention.

Claims (6)

1. The utility model provides a novel combined type sound absorption screen muffler, includes the barrel, be equipped with journal stirrup (10) and lug (11) on the barrel, the barrel comprises barrel (1) and last barrel (2) down, barrel (1) and last barrel (2) inner wall are equipped with noise elimination material (15) down, be equipped with sealing connection board (4), its characterized in that between barrel (1) and the last barrel (2) down:

the device comprises a lower barrel body (1), wherein a connecting pipe (7) and an expansion body (6) are arranged in the lower barrel body (1), the expansion body (6) is sleeved on the periphery of the connecting pipe (7), a single or a plurality of expansion bodies (6) are arranged, the bottom of the connecting pipe (7) extends downwards to the outer side of the bottom of the lower barrel body (1), a sealing bottom plate (5) is arranged at the bottom of the lower barrel body (1), and a connecting pipe flange (8) is arranged on the sealing bottom plate (5) and used for fixing the connecting pipe (7);

go up barrel (2), be equipped with amortization screen panel (12) in going up barrel (2), it is equipped with sealed roof (3) to go up barrel (2) top, amortization screen panel (12) both ends are fixed in on sealed roof (3) and sealing connection board (4) through slot (13) respectively.

2. The new composite acoustic screen muffler of claim 1, wherein: the silencing screen plate (12) and the cylinder body are of a plurality of groups of concentric circular structures or a plurality of groups of vertical plate structures which are arranged in parallel.

3. The new composite acoustic screen muffler of claim 2, wherein: the vertical plate structure is perpendicular to the cylinder sealing top plate (3).

4. The new composite acoustic screen muffler of claim 1, wherein: the bottom of the expansion body (6) is fixedly connected to the sealing bottom plate (5) through an expansion flange (9).

5. The new composite acoustic screen muffler of claim 1, wherein: the silencing material (15) arranged on the walls of the upper barrel (2) and the lower barrel (1) is respectively fixedly connected with the sealing top plate (3), the sealing connecting plate (4) and the sealing bottom plate (5) through bolts (14).

6. The new composite acoustic screen muffler of claim 1, wherein: the slots (13) are respectively arranged on the sealing top plate (3) and the sealing connecting plate (4) in an opposite mode, and the cross sections of the slots are U-shaped structures.

Images