CN210978955U

CN210978955U - Static pressure case of tuber pipe silencer

Info

Publication number: CN210978955U
Application number: CN201921768330.XU
Authority: CN
Inventors: 董尔凯; 奉利
Original assignee: Chongqing Dongqing Ventilation Equipment Co ltd
Current assignee: Chongqing Dongqing Ventilation Equipment Co ltd
Priority date: 2019-10-21
Filing date: 2019-10-21
Publication date: 2020-07-10
Anticipated expiration: 2029-10-21

Abstract

The utility model discloses a static pressure case of tuber pipe silencer, including the shell and arrange the upper cover of shell up end in, the upper cover keeps sliding connection with the shell, and an air outlet is established to the shell side, and an air intake is established to relative opposite side with it, be close to air outlet department in the shell and establish a pair of micropore board, the micropore board keeps fixed connection with the shell, and the nearly air intake department of shell establishes the inner wall and establishes sound absorbing sponge, is equipped with the amortization tile between sound absorbing sponge and the micropore board. Reasonable in design, simple structure can effectually fall the noise elimination of making an uproar, and noise reduction effect is good, is convenient for change internal micropore board, sound insulation tile and inhale sound sponge etc. and it is convenient to dismantle.

Description

Static pressure case of tuber pipe silencer

Technical Field

The utility model relates to a noise elimination technical field specifically says a static pressure case of tuber pipe silencer.

Background

With the development of society and the continuous progress of science and technology, the living standard of people is continuously improved, at present, seats are widely used in various occasions such as concert halls, gymnasiums, report halls, meeting rooms or theaters, and some seats are provided with air supply devices and can be used for supplying air, so that the ambient temperature around the seats is adjusted, and the comfort level of users is improved. However, most of the existing air supply devices directly supply air through an air supply pipeline and send out the air through an air outlet below the seat, and the existing air supply structure generates certain noise, so that the comfort level of a user is influenced.

The static pressure box is a necessary accessory for reducing dynamic pressure, increasing static pressure, stabilizing air flow and reducing air flow vibration of the air supply system, and can make the air supply effect more ideal. Air creates noise as it passes through the plenum box, which must be reduced for equipment with higher noise requirements. The prior static pressure box has various types, and the adopted silencing measures are various, but all the measures are not ideal and the noise reduction is limited.

SUMMERY OF THE UTILITY MODEL

Therefore, in order to solve the above insufficiency, the utility model provides a reasonable in design herein, simple structure can effectively eliminate noise and fall the noise, is applicable to the static pressure case of a tuber pipe silencer of the higher equipment of silence requirement.

The utility model discloses a realize like this, construct a static pressure case of tuber pipe silencer, include the shell and arrange the upper cover of shell up end in, the upper cover keeps sliding connection with the shell, and an air outlet is established to the shell side, and an air intake is established to relative opposite side with it, be close to air outlet department in the shell and establish a pair of micropore board, the micropore board keeps fixed connection with the shell, and the nearly air inlet department of shell establishes the inner wall and establishes sound absorbing sponge, is equipped with the amortization tile between sound absorbing sponge and the micropore board.

Furthermore, through holes are distributed on the surface of the microporous plate, and the diameter of each hole is 0.3-0.8 mm.

Further, the micro plate and the housing member form a cavity.

Furthermore, a ventilation pipe is arranged between the silencing tiles.

Furthermore, the far shell side of the sound-absorbing sponge is covered with a layer of amino polyvinyl alcohol waterproof coating.

Furthermore, a wind shield is arranged on the far shell side of the sound-absorbing sponge.

Further, the wind deflector is internally made of porous rubber materials.

Furthermore, dovetail grooves are formed in the joints of the front side and the rear side of the upper cover and the shell, dovetail blocks are processed at the joints of the upper end face of the shell and the dovetail grooves, and the dovetail blocks are in clearance fit with the dovetail grooves.

Furthermore, the left side and the right side of the shell are provided with a step A and a step B, the direction of the step A faces the outer side of the shell, the direction of the step B is consistent with that of the step A, and the lowest position of the step B is equal to the highest position of the step A in height.

Furthermore, a bulge is arranged at the joint of the upper cover and the step A, the bulge is matched with the step A, and the height of the step B is equal to the thickness of the upper cover.

The utility model has the advantages of as follows: reasonable in design, simple structure can effectually fall the noise elimination of making an uproar, and noise reduction effect is good, is convenient for change internal micropore board, amortization tile and inhale sound sponge etc. and it is convenient to dismantle. Through reasonable design micropore board, be close to air inlet department in the shell and establish a pair of micropore board, the micropore board surface spreads all over the through-hole, and the diameter 0.3mm ~0.8mm in hole, micropore board and shell spare form a cavity. The sound absorption structure is a micro-perforated plate sound absorption structure, which can eliminate noise in a wider frequency band, and can change the audio frequency of the original airflow step by controlling the flow for many times to enter the cavity. The resistance loss is small, the silencing frequency band is wide, and dust is not generated during working.

The sound attenuation tile is reasonably designed, the sound attenuation tile is arranged between the sound absorption sponge and the microporous plate, the ventilation pipe is arranged between the sound attenuation tiles, and the sound attenuation tile can absorb noise generated by gas in the static pressure box.

Sound sponge is inhaled in reasonable design, and the near air inlet department of shell establishes the inner wall and establishes sound sponge, inhales the far away shell side of sound sponge and covers one deck amino polyvinyl alcohol waterproof coating, inhales the sound that sound sponge can absorb gaseous striking deep bead, and the waterproof layer can prevent the erosion of water, oil etc. to sound sponge, improves its life.

The wind shield is reasonably designed, the far shell side of the sound-absorbing sponge is provided with the wind shield, and the wind shield is internally provided with a porous rubber material, so that the gas flow speed is reduced, and the noise generated by gas is absorbed.

Through a plurality of noise elimination structures, the noise elimination effect of the air flow is improved, and a good noise elimination effect can be achieved.

The upper cover is reasonably designed, dovetail grooves are formed in the joints of the front side and the rear side of the upper cover and the shell, dovetail blocks are processed at the joints of the upper end face of the shell and the dovetail grooves, the dovetail blocks are in clearance fit with the dovetail grooves, the upper cover is in sliding connection with the upper end face of the shell, and the upper cover can be detached and is convenient for replacing components inside the static pressure box.

The steps are reasonably designed, the left side and the right side of the shell are provided with the step A and the step B, a protrusion is arranged at the joint of the upper cover and the step A and matched with the step A, the height of the step B is equal to the thickness of the upper cover, the upper cover slides into the shell, namely, when the static pressure box is sealed, the protrusion is matched with the step A, and the other side is matched with the step B, so that the airtightness of the whole static pressure box is improved, and the static pressure box is convenient to disassemble.

Drawings

Fig. 1 is a front view of the present invention;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

FIG. 3 is a cross-sectional view B-B of FIG. 1;

FIG. 4 is an enlarged view of a portion C-C of FIG. 2;

FIG. 5 is an enlarged view of a portion of D-D of FIG. 2;

FIG. 6 is an enlarged view of E-E in FIG. 3;

in the figure: 1. a housing; 1.1, dovetail; 1.2, a step A; 1.3, step B; 2. an upper cover; 2.1, dovetail grooves; 2.2, convex; 3. a microporous plate; 4. a cavity; 5. a silencing tile; 6. a vent pipe; 7. sound-absorbing sponge; 8. a wind deflector; 9. an air outlet; 10. and an air inlet.

Detailed Description

The present invention will be described in detail with reference to fig. 1 to 6, and the technical solutions in the embodiments of the present invention will be clearly and completely described, 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.

The utility model discloses an improve and provide a static pressure case of tuber pipe silencer here, include shell 1 and arrange the upper cover 2 of shell up end in, upper cover 2 keeps sliding connection with shell 1, and an air outlet 9 is established to shell 1 side, and an air intake 10 is established to relative opposite side with it, be close to air outlet 9 department in the shell 1 and establish a pair of micropore board 3, micropore board 3 keeps fixed connection with shell 1, and shell 1 nearly air intake 10 department establishes the inner wall and establishes sound absorbing sponge 7, is equipped with amortization tile 5 between sound absorbing sponge 7 and the micropore board 3.

In the embodiment, the through holes are distributed on the surface of the microporous plate 3, and the diameter of each hole is 0.3-0.8 mm.

In this embodiment, the microplate 3 and the housing 1 form a cavity 4.

In this embodiment, ventilation pipes 6 are arranged between the silencing tiles 5.

In this embodiment, the sound-absorbing sponge 7 is covered with a waterproof coating of amino polyvinyl alcohol on the side of the outer shell 1.

In the present embodiment, a wind deflector 8 is provided on the far-shell side of the sound-absorbing sponge 7.

In this embodiment, the wind deflector 8 is made of a porous rubber material.

In the embodiment, dovetail grooves 2.1 are formed in the joints of the front side and the rear side of the upper cover 2 and the shell 1, dovetail blocks 1.1 are processed at the joints of the upper end surface of the shell 1 and the dovetail grooves 2.1, and the dovetail blocks 1.1 are in clearance fit with the dovetail grooves 2.1.

In this embodiment, the left and right sides of the housing 1 are provided with a step a1.2 and a step B1.3, the direction of the step a1.2 faces the outside of the housing 1, the directions of the step B1.3 and the step a1.2 are the same, and the lowest part of the step B1.3 is as high as the highest part of the step a 1.2.

In this embodiment, a protrusion 2.2 is disposed at a connection position of the upper cover 2 and the step a1.2, the protrusion 2.2 is matched with the step a1.2, and a height of the step B1.3 is equal to a thickness of the upper cover 2.

The utility model discloses when implementing, wind blows in from air intake 10, through 8 retards of deep bead, absorbs the partial noise, inhales sound sponge 7 and strikes the sound absorption of deep bead 8 with wind, through ventilation pipe 6, and the further noise elimination of amortization tile 5, through micropore board 3 again, the accuse is flowed and is got into cavity 4 many times, changes the audio of former air current step by step, reaches the effect of good noise elimination.

The micropore plate is reasonably designed, a pair of micropore plates are arranged at positions, close to air inlets, in the shell, the surfaces of the micropore plates are distributed with through holes, the diameter of each hole is 0.3 mm-0.8 mm, and the micropore plates and the shell piece form a cavity. The sound absorption structure is a micro-perforated plate sound absorption structure, which can eliminate noise in a wider frequency band, and can change the audio frequency of the original airflow step by controlling the flow for many times to enter the cavity. The resistance loss is small, the silencing frequency band is wide, and dust is not generated during working.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The utility model provides a static pressure case of tuber pipe silencer which characterized in that: including shell (1) and arrange upper cover (2) of shell up end in, upper cover (2) keep sliding connection with shell (1), and an air outlet (9) is established to shell (1) side, and an air intake (10) are established to the opposite side relative to it, locate to establish a pair of micropore board (3) near air outlet (9) in shell (1), micropore board (3) keep fixed connection with shell (1), and shell (1) is close to air intake (10) and locates to establish the inner wall and establish sound sponge (7), inhales and is equipped with amortization tile (5) between sound sponge (7) and micropore board (3).

2. A plenum box for a duct muffler according to claim 1, wherein: the surface of the microporous plate (3) is provided with through holes, and the diameter of each hole is 0.3-0.8 mm.

3. A plenum box for a duct muffler according to claim 2, wherein: the micropore plate (3) and the shell (1) form a cavity (4).

4. A plenum box for a duct muffler according to claim 1, wherein: and ventilation pipes (6) are arranged between the silencing tiles (5).

5. A plenum box for a duct muffler according to claim 1, wherein: and the far shell (1) side of the sound-absorbing sponge (7) is covered with a layer of amino polyvinyl alcohol waterproof coating.

6. A plenum box for a duct muffler according to claim 5, wherein: and a wind shield (8) is arranged on the far side of the sound-absorbing sponge (7) from the shell.

7. A plenum box for a duct muffler according to claim 6, wherein: the wind shield (8) is internally made of porous rubber material.

8. A plenum box for a duct muffler according to claim 1, wherein: dovetail grooves (2.1) are arranged at the joints of the front side and the rear side of the upper cover (2) and the shell (1), dovetail blocks (1.1) are processed at the joints of the upper end surface of the shell (1) and the dovetail grooves (2.1), and the dovetail blocks (1.1) are in clearance fit with the dovetail grooves (2.1).

9. A plenum box for a duct muffler according to claim 1, wherein: the left side and the right side of the shell (1) are provided with a step A (1.2) and a step B (1.3), the direction of the step A (1.2) faces the outer side of the shell (1), the directions of the step B (1.3) and the step A (1.2) are consistent, and the lowest part of the step B (1.3) is as high as the highest part of the step A (1.2).

10. A plenum box for a duct muffler according to claim 9, wherein: a bulge (2.2) is arranged at the joint of the upper cover (2) and the step A (1.2), the bulge (2.2) is matched with the step A (1.2), and the height of the step B (1.3) is equal to the thickness of the upper cover (2).