CN211858131U

CN211858131U - Silencing tube orifice plate structure for horizontal small-hole silencer

Info

Publication number: CN211858131U
Application number: CN202020348415.9U
Authority: CN
Inventors: 蒋翠宽; 蒋翠华
Original assignee: Anhui Weiertek Electromechanical Equipment Co Ltd
Current assignee: Anhui Weiertek Electromechanical Equipment Co Ltd
Priority date: 2020-03-18
Filing date: 2020-03-18
Publication date: 2020-11-03
Anticipated expiration: 2030-03-18

Abstract

The utility model relates to a horizontal aperture muffler is with amortization shell orifice plate structure, including setting up the multistage amortization shell orifice plate in horizontal aperture muffler's urceolus, this multistage amortization shell orifice plate constant diameter and coaxial setting, and this multistage amortization shell orifice plate is along urceolus axial end to end, and the amortization pore diameter of this multistage amortization shell orifice plate is by diminishing from air inlet to gas outlet direction, sets up the connection backing ring between the amortization shell orifice plate, the connection backing ring include with the interior pipe fitting of amortization shell orifice plate coaxial arrangement and lie in the ring liner piece of interior pipe fitting coaxial arrangement on the outer wall of pipe fitting, the external diameter of interior pipe fitting equal the internal diameter of amortization shell orifice plate, and the outer wall of interior pipe fitting links firmly with the inner wall of the amortization shell orifice plate of both sides, the external diameter of ring liner piece equals the internal diameter of urceolus, the ring diameter direction of ring. Simple structure, stable and reliable when using.

Description

Silencing tube orifice plate structure for horizontal small-hole silencer

Technical Field

The utility model relates to a muffler, concretely relates to horizontal silencing pot orifice plate structure for aperture muffler.

Background

A silencer is a device that prevents sound from propagating while allowing airflow to pass through, and is an important device for eliminating aerodynamic noise and reducing noise. The small-hole silencer is an effective device for controlling the outward transmission of aerodynamic noise, greatly reduces the generation and transmission of noise, and does not influence the air flow. The silencing principle is that a large nozzle is replaced by a plurality of small holes on the premise of keeping the same air displacement, and the small holes move high-frequency sound to a range insensitive to human ears, so that the aim of reducing noise is fulfilled. Specifically, the small aperture on the orifice plate of the silencing tube improves the sound absorption coefficient, the low porosity increases the width of the sound absorption frequency band, achieves the silencing effect, and is commonly used for exhausting and emptying high-pressure equipment such as boilers, compressors and the like. The structure of an internal silencing tube of the existing horizontal small-hole silencer is complex to set, and the stability of the existing horizontal small-hole silencer is required to be improved.

Disclosure of Invention

The utility model aims at providing a horizontal orifice silencer is with a hole plate structure of silencing pot, simple structure, reliable and stable during the use.

In order to realize the above purpose, the utility model discloses a technical scheme be: the utility model provides a horizontal orifice silencer is with amortization shell orifice plate structure, is including setting up the multistage amortization shell orifice plate in horizontal orifice silencer's the urceolus, and this multistage amortization shell orifice plate isodiametric and coaxial setting, and this multistage amortization shell orifice plate is along urceolus axial end to end, and the amortization pore diameter of this multistage amortization shell orifice plate diminishes by big from air inlet to gas outlet direction, sets up the connection backing ring between the amortization shell orifice plate, the connection backing ring include with the coaxial interior pipe fitting of arranging of amortization shell orifice plate and lie in the ring liner piece of arranging with interior pipe fitting coaxial on the outer wall of interior pipe fitting, the external diameter of interior pipe fitting equal the internal diameter of amortization shell orifice plate, and the outer wall of interior pipe fitting links firmly with the inner wall of the amortization shell orifice plate of both sides, the external diameter of ring liner piece equals the internal diameter of.

Furthermore, a positioning hole is formed in the position, where the slot is avoided, of the ring lining sheet.

Furthermore, a fixed block is arranged on the silencing orifice plate close to the air inlet end.

Still further, the texture material of the silencing orifice plate is Q235-B, and the inner diameter is 311 mm; the silencing barrel orifice plate comprises a first orifice plate and a second orifice plate which are connected end to end along the axial direction of the outer barrel, the length of the first orifice plate is 1370mm, the wall thickness of the first orifice plate is 3mm, the length of the second orifice plate is 536mm, the wall thickness of the second orifice plate is 2mm, the diameter of the silencing orifice of the first orifice plate is 4mm, and the diameter of the silencing orifice of the second orifice plate is 2 mm.

Still further, the inner diameter of the inner tube is 303 mm.

Further preferably, the ring liner has a slit formed in a ring diameter direction.

The technical effects of the utility model reside in that: the utility model discloses a multistage sound of inhaling of multistage amortization section of thick bamboo orifice plate from air inlet to gas outlet direction, and the gas sound along admitting air to giving vent to anger the direction by every grade inhale the sound after, the gas noise diminishes gradually, sets up the amortization hole aperture of multistage amortization section of thick bamboo orifice plate from admitting air to giving vent to anger the direction by diminishing more effectual inhaling the sound by big. In order to ensure the connectivity between the multi-section muffling cylinder pore plates, a connecting lining ring is arranged between each section of muffling cylinder pore plate and comprises an inner pipe fitting communicated with and fixedly connected with the muffling cylinder pore plate and a ring lining sheet supporting the muffling cylinder pore plate, and because the gas sound is airflow with noise, the connecting lining ring at the connecting part between the muffling cylinder pore plates can generate impact vibration when passing through the muffling cylinder pore plates. The event the utility model discloses a horizontal orifice silencer is with a section of thick bamboo orifice plate structure of eliminating noise, simple structure is reliable and stable when using.

Drawings

FIG. 1 is a diagram of the actual layout structure of the present invention;

FIG. 2 is a block diagram of the present invention;

FIG. 3 is a cross-sectional view of the connecting bushing of the present invention;

fig. 4 is a front view structural diagram of the connection bushing ring of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to the attached drawings, the muffling orifice plate structure for the horizontal small-hole silencer comprises a multi-section muffling orifice plate B arranged in an outer cylinder A of the horizontal small-hole silencer, the multi-section muffling cylinder pore plate B is arranged coaxially and in the same diameter, and is connected end to end along the axial direction of the outer cylinder A, the diameter of the silencing holes of the multi-section silencing barrel hole plates B is gradually reduced from the air inlet to the air outlet, a connecting lining ring C is arranged between the silencing barrel hole plates B, the connecting lining ring C comprises an inner pipe fitting C1 coaxially arranged with the silencing orifice plate B and a ring lining C2 positioned on the outer wall of the inner pipe fitting C1 and coaxially arranged with the inner pipe fitting C1, the outer diameter of the inner pipe fitting C1 is equal to the inner diameter of the silencing orifice plate B, the outer wall of the inner pipe fitting C1 is fixedly connected with the inner walls of the silencing barrel orifice plates B on the two sides, the outer diameter of the ring gasket C2 is equal to the inner diameter of the outer barrel A, and a slit C21 is formed in the ring radial direction of the ring gasket C2.

The utility model discloses a multistage sound of inhaling of multistage silencing orifice plate B from air inlet to gas outlet direction, and the gas sound is along admitting air to the direction of giving vent to anger by every level inhale the sound back, and the gas noise diminishes gradually, sets up silencing orifice hole diameter of multistage silencing orifice plate B from admitting air to the direction of giving vent to anger by diminishing more effectual sound of inhaling. In order to ensure the connectivity between the multiple sections of the silencing pot orifice plates B, a connecting lining ring C is arranged between each section of the silencing pot orifice plates B and comprises an inner pipe fitting C1 communicated with and fixedly connected with the silencing pot orifice plates B and a ring lining C2 supporting the silencing pot orifice plates B, referring to fig. 1, the support of the ring lining C2 is actually an auxiliary support, and the main support of the silencing pot orifice plates B depends on the lining piece arranged between the outer wall of the silencing pot orifice plates B and the inner wall of the outer cylinder A. Therefore, the outer edge of the ring liner C2 can be welded and fixed on the inner wall of the outer cylinder a at the avoidance point of the slit C21 or can be directly abutted against the inner wall of the outer cylinder a. And because the gas sound is the air current with noise, so can cause the impact vibration of connecting the grommet C of the junction between the orifice plate B of the silencing pot when passing between the orifice plate B of the silencing pot, because connect the grommet C and have inner pipe fittings C1 that UNICOM silencing pot orifice plate B and fixedly connect with orifice plate B of the silencing pot, in order to reduce or even eliminate the impact vibration to connecting the fixed connected adverse effect between grommet C and orifice plate B of the silencing pot, locate at connecting the radial arrangement of the ring liner piece C2 of the grommet C and slit C21 and buffer the release to this impact vibration, guarantee the arrangement and connection effect of connecting the grommet C between orifice plate B of the silencing pot and orifice plate B of the silencing pot. The event the utility model discloses a horizontal orifice silencer is with a section of thick bamboo orifice plate structure of eliminating noise, simple structure is reliable and stable when using.

Furthermore, a positioning hole C22 is formed in the position, where the slit C21 is avoided, of the ring lining C2.

The positioning hole C22 is used for positioning the connecting bushing ring C during installation, and the accurate assembly of the connecting bushing ring C is guaranteed.

Further, a fixed block D is arranged on the silencing orifice plate B close to the air inlet end.

The fixed block D that sets up carries out pressure buffering to the impact force of admitting air towards the one end of the near air inlet of silencing orifice plate B, effectual protection muffler.

Still further, the texture material of the silencing orifice plate B is Q235-B, and the inner diameter is 311 mm; the silencing pot orifice plate B comprises a first orifice plate B1 and a second orifice plate B2 which are axially connected end to end along an outer pot A, wherein the length of the first orifice plate B1 is 1370mm, the wall thickness of the first orifice plate B is 3mm, the length of the second orifice plate B2 is 536mm, the wall thickness of the second orifice plate B2 is 2mm, the diameter of the silencing orifice of the first orifice plate B1 is 4mm, and the diameter of the silencing orifice of the second orifice plate B2 is 2 mm.

Referring to fig. 1 and 2, the sound absorption barrel orifice plate B is designed to absorb sound in two stages from a first orifice plate B1 to a second orifice plate B2 from an air inlet end to an air outlet end, the aperture on the first orifice plate B1 is larger than that on the second orifice plate B2, the sound absorption effect is better, and the sound absorption barrel orifice plate B is suitable for exhaust and emptying of compressor equipment.

Still further, the inner diameter of the inner tubular member C1 was 303 mm.

More preferably, the ring liner C2 is provided with a slit C21 in the ring radial direction.

Thus, the impact vibration of the air flow with noise is transmitted from the inner pipe C1 to the ring patch C2, and is released from the slit C21 formed in the ring patch C2.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a horizontal orifice silencer is with a hole board structure of silencing pot, includes multistage silencing pot orifice board (B) that sets up in urceolus (A) of horizontal orifice silencer, its characterized in that: the multi-section muffling cylinder pore plate (B) is equal in diameter and coaxially arranged, the multi-section muffling cylinder pore plate (B) is connected end to end along the axial direction of the outer cylinder (A), the muffling pore diameter of the multi-section muffling cylinder pore plate (B) is reduced from the air inlet to the air outlet, a connecting lining ring (C) is arranged between the muffling cylinder pore plates (B), the connecting lining ring (C) comprises an inner pipe (C1) coaxially arranged with the muffling cylinder pore plate (B) and a ring lining (C2) which is positioned on the outer wall of the inner pipe (C1) and coaxially arranged with the inner pipe (C1), the outer diameter of the inner pipe (C1) is equal to the inner diameter of the muffling cylinder pore plate (B), the outer wall of the inner pipe (C1) is fixedly connected with the inner walls of the muffling cylinder pore plates (B) on two sides, the outer diameter of the ring lining (C2) is equal to the inner diameter of the outer cylinder lining (A), and the ring diameter of the ring (C2) is opened in.

2. The orifice plate structure of an muffling cylinder for a horizontal small-orifice muffler according to claim 1, wherein: and a positioning hole (C22) is formed in the position, located at the avoiding position of the slit (C21), of the ring lining (C2).

3. The orifice plate structure of an muffling cylinder for a horizontal small-orifice muffler according to claim 1, wherein: a fixed block (D) is arranged on the silencing barrel orifice plate (B) close to the air inlet end.

4. The structure of the muffling orifice plate for the horizontal type small-hole muffler according to claim 2, wherein: the texture material of the silencing orifice plate (B) is Q235-B, and the inner diameter is 311 mm; silencing pot orifice plate (B) including along urceolus (A) axial end to end first orifice plate (B1), second orifice plate (B2), the length of first orifice plate (B1) is 1370mm, the wall thickness is 3mm, the length of second orifice plate (B2) is 536mm, the wall thickness is 2mm, the silencing orifice aperture of first orifice plate (B1) is 4mm, the silencing orifice aperture of second orifice plate (B2) is 2 mm.

5. The structure of the muffling orifice plate for the horizontal type small-hole muffler according to claim 4, wherein: the inner diameter of the inner tube (C1) is 303 mm.

6. The orifice plate structure of an muffling cylinder for a horizontal small-orifice muffler according to claim 1, wherein: a slit (C21) is arranged in the ring radial direction of the ring liner (C2).