CN210374015U

CN210374015U - Muffler assembly suitable for ventilation system

Info

Publication number: CN210374015U
Application number: CN201921228209.8U
Authority: CN
Inventors: 王瑞
Original assignee: Nanjing Insulation Bodry Stone Technology Co ltd
Current assignee: Nanjing Insulation Bodry Stone Technology Co ltd
Priority date: 2019-07-31
Filing date: 2019-07-31
Publication date: 2020-04-21
Anticipated expiration: 2029-07-31

Abstract

The utility model belongs to the technical field of the muffler subassembly, especially, be a muffler subassembly suitable for among ventilation system, including amortization frame, first flange and second flange, first flange is fixed in one side of amortization frame and is linked together rather than inside, the second flange is fixed at the top of amortization frame and is linked together rather than inside, the inside fixed mounting of amortization frame has first baffle and second baffle. The utility model discloses compare with traditional adoption amortization material carries out the amortization, increase the design of amortization structure in the inside of static pressure case, divide into first amortization chamber, second amortization chamber and third amortization chamber with amortization frame inside through first baffle and second baffle, carrying out the amortization to the air current utilizing first amortization subassembly, second amortization subassembly and third amortization subassembly and handling, can reach comprehensive effectual noise cancelling action, reduced the influence of hot-air to static pressure case simultaneously, guaranteed the amortization performance of static pressure case.

Description

Muffler assembly suitable for ventilation system

Technical Field

The utility model relates to a muffler subassembly technical field specifically is a muffler subassembly suitable for among ventilation system.

Background

In the indoor pipeline ventilation system, wind is produced in the course of circulating in the pipeline, therefore in order to avoid noise pollution and influence to the people of indoor building, so will design various muffler assemblies in the ventilation system, among them there are silencing elbow used for connecting the pipeline, there are muffler installed in ventilating pipeline directly, install in pipeline exit silencing mechanism and static pressure case used for air supply ring joint, etc., wherein the static pressure case mainly reduces the dynamic pressure, increases the static pressure, stabilizes the airstream and necessary fittings to reduce the airstream vibration, it can make the air supply effect more ideal, have silencing effects at the same time, but the static pressure case in the present ventilation system still has the following disadvantages:

the simple dependence of current static pressure case lays the sound absorbing material at the pipeline inner wall, converts acoustic energy into heat energy and reaches the effect of amortization, but single dependence sound absorbing material still can't satisfy and reach good noise cancelling effect to can circulate hot air in ventilation system's the pipeline, when noise cancelling material receives hot gas impact, can reduce noise cancelling capacity, because the wavelength or the frequency of sound wave can change along with the change of temperature, because the influence of temperature, can lead to the noise cancelling performance reduction of static pressure case.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a muffler subassembly suitable for among ventilation system has solved current static pressure case noise cancelling effect generally, and the amortization performance is influenced by the hot wind easily problem.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: a silencer component applicable to a ventilation system comprises a silencing outer frame, a first flange and a second flange, wherein the first flange is fixed on one side of the silencing outer frame and communicated with the inside of the silencing outer frame, the second flange is fixed on the top of the silencing outer frame and communicated with the inside of the silencing outer frame, a first partition plate and a second partition plate are fixedly installed inside the silencing outer frame, the top of the second partition plate is fixedly connected with the bottom of the first partition plate, the inside of the silencing outer frame is divided into a first silencing cavity, a second silencing cavity and a third silencing cavity through the first partition plate and the second partition plate, the first silencing component is arranged inside the first silencing cavity and used for silencing air flow entering the first silencing cavity, the second silencing component is arranged inside the second silencing cavity and used for silencing air flow entering the second silencing cavity, and the third silencing component is arranged inside the third silencing cavity, the first partition plate and the second partition plate are respectively provided with a first ventilation hole and a second ventilation hole, the first silencing cavity is communicated with the second silencing cavity through the first ventilation hole, and the second silencing cavity is communicated with the third silencing cavity through the second ventilation hole.

As a preferred technical scheme of the utility model, first amortization subassembly includes the amortization frame, the amortization frame is both ends and is opening and inside hollow rectangle frame, the one end of amortization frame and the top fixed connection of amortization frame inner wall, the other end of amortization frame and the top fixed connection of first baffle, the amortization hole that runs through the amortization frame is all seted up at the four sides of amortization frame.

As a preferred technical scheme of the utility model, first amortization subassembly is still including inhaling the sound frame, inhale the outer wall of sound frame and the inner wall fixed connection who is located the amortization frame of first baffle top.

As an optimized technical scheme of the utility model, the sound attenuation frame is made by galvanized steel sheet, inhale the sound frame and make by the inorganic glass fiber board that the surface covered has glass fiber thermal-insulated membrane.

As a preferred technical scheme of the utility model, the second amortization subassembly includes three acoustic baffle parallel with first baffle, and is three one side of acoustic baffle all with one side fixed connection of second baffle, it is three the opposite side of acoustic baffle all with the inner wall fixed connection of amortization frame, it is three the water conservancy diversion hole has all been seted up on the acoustic baffle.

As an optimal technical scheme of the utility model, it is three the aperture of the water conservancy diversion hole on the acoustic baffle is from the top down the equidifference and is steadilyd decrease.

As an optimized technical scheme of the utility model, the acoustic baffle is the polyester fiber board.

As a preferred technical scheme of the utility model, the third amortization subassembly includes two amortization perforation baffles and amortization piece, two the both ends of amortization perforation baffle respectively with the bottom of first baffle and the bottom fixed connection of amortization frame inner wall, every the amortization piece is located the airtight space that corresponding amortization perforation baffle and first baffle and amortization frame formed respectively.

As an optimized technical scheme of the utility model, the perforated baffle of amortization is high strength thistle board, the amortization piece is made by the polyester fiber cotton.

(III) advantageous effects

Compared with the prior art, the utility model provides a muffler subassembly suitable for among ventilation system possesses following beneficial effect:

this muffler subassembly suitable for among ventilation system, adopt amortization material to carry out the amortization with the tradition and compare, increase the design of amortization structure in the inside of static pressure case, divide into first amortization chamber through first baffle and second baffle with amortization frame inside, second amortization chamber and third amortization chamber, utilize first amortization subassembly, second amortization subassembly and third amortization subassembly carry out the amortization to the air current and handle, can reach comprehensive effectual amortization effect, the influence of hot-air to static pressure case has been reduced simultaneously, the amortization performance of static pressure case has been guaranteed.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a perspective view of the inside of the silencing outer frame of the present invention;

FIG. 3 is a bottom perspective view of the silencing outer frame of the present invention;

FIG. 4 is a vertical sectional perspective view of the present invention;

FIG. 5 is a horizontal sectional perspective view of the present invention;

fig. 6 is a perspective view of a third silencing assembly of the present invention.

In the figure: 1. a silencing outer frame; 2. a first flange; 3. a second flange; 4. a first separator; 5. a second separator; 6. a first muffling chamber; 7. a second muffling chamber; 8. a third sound-deadening chamber; 9. a first noise reduction assembly; 901. a sound deadening frame; 902. a silencing hole; 903. a sound absorbing frame; 10. a second muffler assembly; 1001. a sound absorbing panel; 1002. a flow guide hole; 11. a third noise reduction assembly; 1101. a sound-deadening perforated partition plate; 1102. a sound-deadening block; 12. a first vent hole; 13. and a second vent hole.

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.

Examples

Referring to fig. 1-6, the present invention provides the following technical solutions: a silencer component suitable for a ventilation system comprises a silencing outer frame 1, a first flange 2 and a second flange 3, wherein the first flange 2 is fixed on one side of the silencing outer frame 1 and communicated with the inside of the silencing outer frame, the second flange 3 is fixed on the top of the silencing outer frame 1 and communicated with the inside of the silencing outer frame, a first partition plate 4 and a second partition plate 5 are fixedly installed inside the silencing outer frame 1, the top of the second partition plate 5 is fixedly connected with the bottom of the first partition plate 4, the inside of the silencing outer frame 1 is divided into a first silencing cavity 6, a second silencing cavity 7 and a third silencing cavity 8 through the first partition plate 4 and the second partition plate 5, a first silencing component 9 is arranged inside the first silencing cavity 6 and used for silencing air flow entering the first silencing cavity 6, a second silencing component 10 is arranged inside the second silencing cavity 7 and used for silencing air flow entering the second silencing cavity 7, the inside of third amortization chamber 8 is provided with third amortization subassembly 11 to be used for carrying out the amortization to the air current that enters into third amortization chamber 8, seted up first ventilation hole 12 and second ventilation hole 13 on first baffle 4 and the second baffle 5 respectively, be linked together through first ventilation hole 12 between first amortization chamber 6 and the second amortization chamber 7, be linked together through second ventilation hole 13 between second amortization chamber 7 and the third amortization chamber 8.

In the embodiment, the second partition plate 5 is perpendicular to the first partition plate 4, the first silencing cavity 6 is directly communicated with the second silencing cavity 7, the third silencing cavity 8 is directly communicated with the second silencing cavity 7, and the first silencing cavity 6 and the third silencing cavity 8 can be communicated through the second silencing cavity 7, so that the reasonability of the design of a silencing structure is ensured; the first flange 2 and the second flange 3 are used for being connected with an air pipe in a ventilation system, and the air direction and the layout of the air pipe can be changed; compare with traditional adoption amortization material amortization, increase the design of amortization structure in the inside of static pressure case, divide into first amortization chamber 6, second amortization chamber 7 and third amortization chamber 8 with amortization frame 1 inside through first baffle 4 and second baffle 5, utilize first amortization subassembly 9, second amortization subassembly 10 and third amortization subassembly 11 to carry out the amortization processing to the air current, can reach comprehensive effectual amortization effect, the influence of hot-air to static pressure case has been reduced simultaneously, the amortization performance of static pressure case has been guaranteed.

Specifically, first amortization subassembly 9 includes amortization frame 901, and amortization frame 901 is both ends for opening and inside hollow rectangle frame, the top fixed connection of the one end of amortization frame 901 and amortization frame 1 inner wall, the other end of amortization frame 901 and the top fixed connection of first baffle 4, and the amortization hole 902 that runs through amortization frame 901 is all seted up on the four sides of amortization frame 901.

In this embodiment, the airflow wind enters the inside of the silencing frame 901 through the second flange 3, and then the airflow wind passes through the silencing holes 902 densely distributed on four sides of the silencing frame 901 from the inside of the silencing frame 901 to the outside of the silencing frame 901, when the airflow wind passes through the silencing holes 902, the frequency spectrum of the airflow wind noise will move to a high frequency or an ultrahigh frequency, so that the audible sound component in the frequency spectrum is obviously reduced, the interference and damage to people can be reduced, and a certain silencing effect is achieved.

Specifically, the first silencing assembly 9 further includes a sound absorbing frame 903, and an outer wall of the sound absorbing frame 903 is fixedly connected to an inner wall of the silencing outer frame 1 located above the first partition plate 4.

In this embodiment, when the airflow enters the upper portion of the first partition plate 4 and is located outside the sound-deadening frame 901, the sound-deadening holes 902 are formed on four sides of the sound-deadening frame 901, and the sound-deadening frame 903 is disposed on four sides of the inner wall of the sound-deadening outer frame 1, so that the airflow wind is directly jetted onto the sound-deadening frame 903, and the sound-deadening frame 903 can absorb the airflow wind, convert the sound energy into heat energy, and play a role in sound deadening.

Specifically, the sound-deadening frame 901 is made of a galvanized steel sheet, and the sound-deadening frame 903 is made of an inorganic glass fiber sheet having a surface coated with a glass fiber heat insulating film.

In this embodiment, the silencing frame 901 made of galvanized steel sheet has the advantages of corrosion resistance, good heat insulation performance and long service life; the inorganic glass fiber board coated with the glass fiber heat insulation film has the advantages of heat insulation, heat preservation and flame retardance, and therefore, is suitable for being used as the material of the sound absorption frame 903.

Specifically, second amortization subassembly 10 includes three acoustic baffle 1001 parallel with first baffle 4, and one side of three acoustic baffle 1001 all with one side fixed connection of second baffle 5, the opposite side of three acoustic baffle 1001 all with the inner wall fixed connection of amortization frame 1, all seted up water conservancy diversion hole 1002 on the three acoustic baffle 1001.

In this embodiment, when the inside air current wind of first amortization chamber 6 enters into second amortization chamber 7, the direct from the top down of air current wind circulates, and air current wind circulates between three acoustic baffle 1001 through water conservancy diversion hole 1002, utilizes three acoustic baffle 1001 in order to carry out multistage buffering to some air current wind, relies on acoustic baffle 1001 to absorb the noise, has played the effect of eliminating the noise and falling the noise.

Specifically, the diameters of the flow guide holes 1002 on the three sound absorbing panels 1001 decrease from top to bottom.

In this embodiment, the airflow wind needs to be ensured to have normal circulation while being buffered in multiple stages through the diversion holes 1002, the aperture of the diversion holes 1002 is sequentially decreased in an equal difference manner from top to bottom, and the circulation of the airflow wind from top to bottom is ensured.

Specifically, the sound absorbing panel 1001 is a polyester fiber panel.

In this embodiment, polyester fiber board has environmental protection, fire-retardant, heat preservation, workable, shock resistance and inhales the advantage of sound, is fit for as the utility model discloses an acoustic baffle 1001.

Specifically, the third silencing component 11 includes two silencing perforated partition plates 1101 and silencing blocks 1102, two ends of the two silencing perforated partition plates 1101 are respectively and fixedly connected with the bottom of the first partition plate 4 and the bottom of the inner wall of the silencing outer frame 1, and each silencing block 1102 is respectively located in a closed space formed by the corresponding silencing perforated partition plate 1101, the first partition plate 4 and the silencing outer frame 1.

In this embodiment, only a part of the airflow entering the second muffling chamber 7 enters the lowest sound-absorbing plate 1001 and then enters the third muffling chamber 8 through the second vent 13, and most of the airflow does not pass through the uppermost sound-absorbing plate 1001 and the middle sound-absorbing plate 1001 and then directly enters the third muffling chamber 8 through the second vent 13, so that the design of the muffling perforated partition 1101 and the muffling block 1102 is added, and the airflow is absorbed by the muffling block 1102 through the muffling perforated partition 1101, thereby achieving the muffling effect.

Specifically, the sound-deadening perforated partition 1101 is a high-strength paper-surface gypsum board, and the sound-deadening block 1102 is made of polyester fiber cotton.

In this embodiment, the high-strength paper-surface gypsum board has the advantages of light weight, moisture resistance, no deformation, fire resistance, flame retardance and the like, and is suitable for being used as the silencing perforated partition 1101; polyester fiber cotton has the advantage that has environmental protection, fire-retardant, heat preservation, workable, shock resistance and inhale the sound, is fit for as the utility model discloses a amortization piece 1102.

The utility model discloses a theory of operation and use flow: airflow wind enters the interior of the silencing frame 901 through the second flange 3, then the airflow wind passes through the silencing holes 902 densely distributed on four sides of the silencing frame 901 and then goes from the interior of the silencing frame 901 to the exterior of the silencing frame 901, when the airflow wind passes through the silencing holes 902, the frequency spectrum of the noise of the airflow wind moves to high frequency or ultrahigh frequency, so that the audible sound component in the frequency spectrum is obviously reduced, when the airflow wind enters the upper part of the first partition plate 4 and is located on the exterior of the silencing frame 901, the sound absorption frame 903 can absorb the noise and convert the sound energy into heat energy, so as to play a silencing role, then the airflow wind enters the second silencing cavity 7 through the first vent hole 12, the airflow wind directly circulates from top to bottom, the airflow wind circulates among the three sound absorption plates 1001 through the diversion holes 1002, the three sound absorption plates 1001 are utilized to carry out multi-stage buffering on a part of the airflow wind, and the airflow wind is divided into a plurality of strands in the second silencing cavity 7, the airflow wind enters the third silencing cavity 8 through the second vent hole 13, then is absorbed by the silencing block 1102 through the silencing perforated partition 1101, and finally is discharged through the first flange 2.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A muffler subassembly suitable for in ventilation system, includes amortization frame (1), first flange (2) and second flange (3), its characterized in that: the first flange (2) is fixed on one side of the silencing outer frame (1) and communicated with the inside of the silencing outer frame, the second flange (3) is fixed on the top of the silencing outer frame (1) and communicated with the inside of the silencing outer frame, a first partition plate (4) and a second partition plate (5) are fixedly installed inside the silencing outer frame (1), the top of the second partition plate (5) is fixedly connected with the bottom of the first partition plate (4), the inside of the silencing outer frame (1) is divided into a first silencing cavity (6), a second silencing cavity (7) and a third silencing cavity (8) through the first partition plate (4) and the second partition plate (5), a first silencing assembly (9) is arranged inside the first silencing cavity (6) and used for silencing air flow entering the first silencing cavity (6), and a second silencing assembly (10) is arranged inside the second silencing cavity (7) and used for silencing air flow entering the second silencing cavity (7), the inside in third amortization chamber (8) is provided with third amortization subassembly (11) to be used for carrying out the amortization to the air current that enters into third amortization chamber (8), first ventilation hole (12) and second ventilation hole (13) have been seted up on first baffle (4) and second baffle (5) respectively, be linked together through first ventilation hole (12) between first amortization chamber (6) and second amortization chamber (7), be linked together through second ventilation hole (13) between second amortization chamber (7) and third amortization chamber (8).

2. A muffler assembly as defined in claim 1 adapted for use in a ventilation system wherein: the first silencing assembly (9) comprises a silencing frame (901), the silencing frame (901) is a rectangular frame with two open ends and a hollow interior, one end of the silencing frame (901) is fixedly connected with the top of the inner wall of the silencing outer frame (1), the other end of the silencing frame (901) is fixedly connected with the top of the first partition plate (4), and silencing holes (902) penetrating through the silencing frame (901) are formed in four sides of the silencing frame (901).

3. A muffler assembly adapted for use in a ventilation system as claimed in claim 2, wherein: the first silencing assembly (9) further comprises a sound absorption frame (903), and the outer wall of the sound absorption frame (903) is fixedly connected with the inner wall of the silencing outer frame (1) above the first partition plate (4).

4. A muffler assembly as defined in claim 3 adapted for use in a ventilation system wherein: the noise reduction frame (901) is made of galvanized steel plates, and the sound absorption frame (903) is made of inorganic glass fiber plates with glass fiber heat insulation films covering the surfaces.

5. A muffler assembly as defined in claim 1 adapted for use in a ventilation system wherein: the second silencing assembly (10) comprises three sound-absorbing plates (1001) parallel to the first partition plate (4), one sides of the sound-absorbing plates (1001) are fixedly connected with one sides of the second partition plate (5), the other sides of the sound-absorbing plates (1001) are fixedly connected with the inner wall of the silencing outer frame (1), and the sound-absorbing plates (1001) are provided with flow guide holes (1002).

6. A muffler assembly, suitable for use in a ventilation system, as claimed in claim 5, wherein: the aperture of the flow guide holes (1002) on the three sound absorption plates (1001) decreases from top to bottom in an equal difference mode.

7. A muffler assembly, suitable for use in a ventilation system, as claimed in claim 5, wherein: the sound absorption plate (1001) is a polyester fiber plate.

8. A muffler assembly as defined in claim 1 adapted for use in a ventilation system wherein: the third silencing assembly (11) comprises two silencing perforated partition plates (1101) and silencing blocks (1102), two ends of each silencing perforated partition plate (1101) are fixedly connected with the bottom of the first partition plate (4) and the bottom of the inner wall of the silencing outer frame (1) respectively, and each silencing block (1102) is located in a closed space formed by the corresponding silencing perforated partition plate (1101), the first partition plate (4) and the silencing outer frame (1) respectively.

9. A muffler assembly as defined in claim 8 adapted for use in a ventilation system wherein: the sound-deadening perforated partition plate (1101) is a high-strength paper-surface gypsum board, and the sound-deadening block (1102) is made of polyester fiber cotton.