CN220303859U - Muffler device for heating ventilation air conditioning ventilation system - Google Patents
Muffler device for heating ventilation air conditioning ventilation system Download PDFInfo
- Publication number
- CN220303859U CN220303859U CN202321722010.7U CN202321722010U CN220303859U CN 220303859 U CN220303859 U CN 220303859U CN 202321722010 U CN202321722010 U CN 202321722010U CN 220303859 U CN220303859 U CN 220303859U
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- China
- Prior art keywords
- pipeline
- silencing
- inner shell
- filter screen
- ventilation system
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- 238000009423 ventilation Methods 0.000 title claims abstract description 54
- 238000010438 heat treatment Methods 0.000 title abstract description 13
- 238000004378 air conditioning Methods 0.000 title abstract description 8
- 230000030279 gene silencing Effects 0.000 claims abstract description 27
- 230000007246 mechanism Effects 0.000 claims abstract description 26
- 230000008030 elimination Effects 0.000 claims abstract description 12
- 238000003379 elimination reaction Methods 0.000 claims abstract description 12
- 238000005192 partition Methods 0.000 claims abstract description 11
- 238000010521 absorption reaction Methods 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 9
- 230000008878 coupling Effects 0.000 claims description 8
- 238000010168 coupling process Methods 0.000 claims description 8
- 238000005859 coupling reaction Methods 0.000 claims description 8
- 238000010030 laminating Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 230000003584 silencer Effects 0.000 description 6
- 229920000742 Cotton Polymers 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 230000001743 silencing effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
Abstract
A silencing device for heating ventilation air conditioning ventilation system, includes the ventilation pipe, and the ventilation pipe includes first pipeline, second pipeline and third pipeline, and first pipeline can dismantle and be connected with the filter screen, and second pipeline internal frame has a plurality of resistive noise elimination mechanism, transversely inserts a plurality of acoustical panels in the third pipeline, and acoustical panel front end can dismantle equally and be connected with the filter screen. The second pipeline is divided into four chambers by the two partition boards, and each chamber is internally provided with a resistive silencing mechanism which separates and silences sound energy, so that the silencing efficiency is higher compared with that of a single silencing mechanism; the muffler plate is located resistive noise elimination mechanism export front end, and the muffler plate is located the position of perforation inner shell midpoint, and the muffler plate separates the sound energy that sends from the perforation inner shell once more, and the muffler plate will directly pass through the sound energy absorption of perforation inner shell middle part, has further improved the noise elimination effect of whole device.
Description
Technical Field
The utility model relates to the technical field of noise elimination equipment, in particular to a noise elimination device for a heating ventilation air conditioning ventilation system.
Background
The ventilation system of the heating ventilation air conditioner is an important component part of the heating ventilation air conditioner, and because the heating ventilation air conditioner is equipment responsible for heating, ventilation and air conditioning in a room or a car, the indoor temperature is controlled, the indoor comfort level is improved, the ventilation system is an important ring in medium-large industrial buildings or office buildings, when the heating ventilation air conditioner starts ventilation, stronger air flow is generated inside to ventilate, and excessive noise is easy to occur due to the fact that the air flow speed is too fast to impact the inner wall of a pipeline.
The patent with the publication number of CN215490142U discloses a silencing device for a heating ventilation air conditioning ventilation system, which comprises a ventilation pipe, the mounting groove has been seted up to the ventilation pipe right-hand member, the air-supply line is installed to the mounting groove internal thread, the spacing groove has been seted up to the air-supply line right-hand member, two draw-in grooves have been seted up to the air-supply line right-hand member, all be provided with the couple in two draw-in grooves, the same filter screen frame has been welded to the left end of two couples, the riveting has the filter screen in the middle of the filter screen frame, the inside damping sound-proof felt that has paste of ventilation pipe, the outside cover of ventilation pipe is equipped with the cotton pipe of amortization, the outside screw thread of ventilation pipe installs the outer tube, the outer tube is located the outside of amortization cotton pipe, the play tuber pipe is installed to the left end screw thread of ventilation pipe. However, the sound energy in the device directly passes through the ventilation pipe, the sound-proof felt and the noise-reducing cotton can only absorb the sound energy near the pipe wall of the ventilation pipe, the absorption of the middle sound energy is less, and the noise-reducing effect is not obvious.
Disclosure of Invention
The utility model aims to overcome the defects of the situations, and aims to provide the silencing device for the heating ventilation air conditioning ventilation system, which can absorb more sound energy and has obvious silencing effect.
A silencing device for heating ventilation air conditioning ventilation system, includes the ventilation pipe, the ventilation pipe includes first pipeline, second pipeline and third pipeline, first pipeline can dismantle and be connected with the filter screen, erect a plurality of resistive noise elimination mechanism in the second pipeline, transversely insert a plurality of acoustical panels in the third pipeline, acoustical panel front end can dismantle equally and be connected with the filter screen.
Further, a side wall of the first pipeline and a side wall of the third pipeline are provided with openings, sliding grooves are formed in the inner walls of the top and the bottom of the first pipeline and the inner walls of the third pipeline, the filter screen slides in the sliding grooves, rubber strips are fixedly connected to the inner walls of two sides of the openings in close proximity, sealing strips are fixedly connected to the end portions of the filter screen, and the rubber strips and the sealing strips are mutually attached after the filter screen is inserted.
Further, the side wall of the filter screen is fixedly connected with a sealing plate, the top and the bottom of the first pipeline and the third pipeline are fixedly connected with first connecting pieces, and the first connecting pieces are connected with the sealing plate through bolts and nuts.
Further, a plurality of partition boards are fixedly connected in the second pipeline, the partition boards divide the second pipeline into a plurality of chambers, the resistive noise elimination mechanisms are placed in the chambers, and the resistive noise elimination mechanisms comprise perforated inner shells and sound absorption media.
Further, the front end of the perforated inner shell is a hollow cuboid, the rear end of the perforated inner shell is a hollow trapezoid, the rear end opening of the perforated inner shell is larger than the front end opening, and a plurality of through holes are formed in the side wall of the perforated inner shell.
Further, the sound absorbing medium fills up the clearance between the perforation inner shell and the baffle, the sound absorbing medium is hugged closely with the outer wall of perforation inner shell.
Further, the inner wall of the third pipeline is provided with a plurality of connecting grooves, the silencing plate is inserted into the connecting grooves and positioned at the front end of the outlet of the resistive silencing mechanism, and the silencing plate separates acoustic energy from the resistive silencing mechanism.
Further, the splice of first pipeline, second pipeline and third pipeline all rigid coupling has the second connection piece, and is adjacent the mutual laminating of second connection piece, the second connection piece is equipped with a plurality of connecting holes, and bolt and nut pass the connecting hole will be adjacent the second connection piece is connected.
Compared with the prior art, the utility model has the beneficial effects that:
(1) the second pipeline is divided into four chambers by the two partition boards, and each chamber is internally provided with a resistive silencing mechanism which separates and silences sound energy, so that the silencing efficiency is higher compared with that of a single silencing mechanism.
(2) The muffler plate is located resistive noise elimination mechanism export front end, and the muffler plate is located the position of perforation inner shell midpoint, and the muffler plate separates the sound energy that sends from the perforation inner shell once more, and the muffler plate will directly pass through the sound energy absorption of perforation inner shell middle part, has further improved the noise elimination effect of whole device.
Drawings
The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:
fig. 1 is a schematic view of a first pipe structure of a muffler device for a hvac ventilation system.
Fig. 2 is a schematic view of a third pipe structure of a muffler device for a hvac ventilation system.
Fig. 3 is a schematic view of a second pipe structure of a muffler device for a hvac ventilation system.
Fig. 4 is a cross-sectional view of a resistive muffler mechanism in a muffler device for a hvac ventilation system.
In the figure: 1. a ventilation pipe; 11. a first pipe; 12. a second pipe; 121. a partition plate; 13. a third conduit; 131. a connecting groove; 2. a filter screen; 21. a chute; 22. a rubber strip; 23. a sealing strip; 24. a closing plate; 25. a first connecting piece; 3. a resistive muffler mechanism; 31. perforating the inner shell; 32. a sound absorbing medium; 4. a muffler plate; 5. and a second connecting piece.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
As shown in fig. 1-4, a muffler device for a ventilation system of a heating ventilation air conditioner comprises a ventilation pipe 1, wherein the ventilation pipe 1 comprises a first pipeline 11, a second pipeline 12 and a third pipeline 13, air flow moves from the direction of the first pipeline 11 to the direction of the third pipeline 13, a filter screen 2 is detachably connected to the first pipeline 11, a plurality of resistive muffler mechanisms 3 are erected in the second pipeline 12, a plurality of muffler plates 4 are transversely inserted in the third pipeline 13, and the front ends of the muffler plates 4 are also detachably connected with the filter screen 2.
The first pipeline 11 and the third pipeline 13 are provided with openings on one side wall, the inner walls of the tops and the bottoms of the first pipeline 11 and the third pipeline 13 are respectively provided with a chute 21, the size of each chute 21 corresponds to that of the filter screen 2, the filter screen 2 slides in each chute 21 and has no gap, rubber strips 22 are fixedly connected to the inner walls adjacent to the two sides of the openings, sealing strips 23 are fixedly connected to the end parts of the filter screens 2, the rubber strips 22 and the sealing strips 23 are mutually attached to the openings after the filter screens 2 are inserted, the openings are tightly plugged after the openings are attached, the ventilation system is prevented from being influenced by air leakage at the openings when in use, impurities in air flow can be effectively prevented from entering the second pipeline 12 and the third pipeline 13 which are positioned behind the first pipeline 11 by the filter screen 2 in the first pipeline 11, the resistive silencing mechanism 3 can work normally and permanently without being damaged by the impurities, the silencing effect and efficiency are ensured, and the filter screen 2 in the third pipeline 13 filters the impurities falling off due to the air flow passing through the second pipeline 12 and the third pipeline 13.
The filter screen 2 lateral wall rigid coupling has the closing plate 24, and the closing plate 24 covers the opening completely, further seals the opening, and first pipeline 11 and third pipeline 13 top and bottom all rigid coupling have first connecting piece 25, and first connecting piece 25 passes through the bolt and the nut is connected with closing plate 24, and long-term filtration work can make filter screen 2 jam or damage, therefore filter screen 2 need frequently change or clear up, only need dismantle bolt and the nut on the first connecting piece 25 during the clearance, later can take out filter screen 2 light from first pipeline 11 through spout 21 and clear up or change, need not the pipeline to demolish and overhaul, has improved maintenance efficiency.
Two horizontal and vertical partition plates 121 are fixedly connected in the second pipeline 12, the second pipeline 12 is divided into four chambers by the two partition plates 121, a resistive silencing mechanism 3 is placed in each chamber, the four resistive silencing mechanisms 3 separate and silence sound energy, and compared with a single silencing mechanism, the damping efficiency is higher, and the resistive silencing mechanism 3 comprises a perforated inner shell 31 and a sound absorbing medium 32.
The front end of the perforated inner shell 31 is a hollow cuboid, the rear end of the perforated inner shell 31 is a hollow trapezoid, the rear end opening of the perforated inner shell 31 is larger than the front end opening, and a plurality of through holes are formed in the side wall of the perforated inner shell 31; the sound absorbing medium 32 fills the gap between the perforated inner shell 31 and the partition plate 121, the sound absorbing medium 32 is tightly attached to the outer wall of the perforated inner shell 31, the sound absorbing medium 32 can be made of glass fibers or felts, when sound energy enters the second pipeline 12 from the first pipeline 11, the four chambers firstly separate the sound energy, part of the sound energy directly impacts the sound absorbing medium 32 positioned at the orifice of the second pipeline 12, other sound energy is compressed into each perforated inner shell 31, the compressed sound energy rubs with the perforated inner shell 31, the sound energy is converted into heat energy by friction and is dispersed, part of the sound energy enters the sound absorbing medium 32 through the perforations, the sound absorbing medium 32 absorbs the sound energy, then the rest of the sound energy enters the second half section of the trapezoid of the perforated inner shell 31, and the second half section of the sound absorbing medium 32 can absorb part of the sound energy when the sound energy is diffused to the periphery, the caliber of the second half section of the perforated inner shell 31 is gradually increased, the sound energy is dispersed to the periphery, the noise is smaller, and the influence on airflow circulation is reduced.
The inner wall of the third pipeline 13 is provided with two connecting grooves 131, the silencer plate 4 is inserted into the connecting grooves 131, the silencer plate 4 is positioned at the front end of the outlet of the resistive silencer mechanism 3, the silencer plate 4 is positioned at the midpoint of the perforated inner shell 31, the silencer plate 4 separates the sound energy emitted from the perforated inner shell 31 again, and the silencer plate 4 absorbs the sound energy directly passing through the middle part of the perforated inner shell 31, so that the silencing effect of the whole device is further improved.
The splice of first pipeline 11, second pipeline 12 and third pipeline 13 all rigid coupling has second connection piece 5, and adjacent second connection piece 5 laminating each other, and second connection piece 5 is equipped with a plurality of connecting holes, and bolt and nut pass the connecting hole and connect adjacent second connection piece 5, and laminating through second connection piece 5 is connected and is complete ventilation pipe 1, and convenient operation installation is swift.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (8)
1. A muffler device for a hvac ventilation system, comprising a ventilation pipe (1), characterized in that: the ventilating pipe (1) comprises a first pipeline (11), a second pipeline (12) and a third pipeline (13), the first pipeline (11) is detachably connected with a filter screen (2), a plurality of resistive silencing mechanisms (3) are erected in the second pipeline (12), a plurality of silencing plates (4) are transversely inserted in the third pipeline (13), and the front ends of the silencing plates (4) are detachably connected with the filter screen (2) as well.
2. A muffler device for a hvac ventilation system as claimed in claim 1, wherein: the utility model discloses a filter, including first pipeline (11) and third pipeline (13), first pipeline (11) and third pipeline (13) a lateral wall are equipped with the opening, first pipeline (11) and third pipeline (13) top inner wall and bottom inner wall all are equipped with spout (21), filter screen (2) are in slide in spout (21), next-door neighbour inner wall rigid coupling in opening both sides has rubber strip (22), filter screen (2) tip rigid coupling has sealing strip (23), insert behind filter screen (2) rubber strip (22) and sealing strip (23) laminating each other.
3. A muffler device for a hvac ventilation system as claimed in claim 1, wherein: the filter screen (2) lateral wall rigid coupling has closure plate (24), first pipeline (11) and third pipeline (13) top and bottom all rigid coupling have first connecting piece (25), first connecting piece (25) pass through bolt and nut with closure plate (24) are connected.
4. A muffler device for a hvac ventilation system as set forth in claim 3, wherein: a plurality of partition boards (121) are fixedly connected in the second pipeline (12), the partition boards (121) divide the second pipeline (12) into a plurality of chambers, the resistive noise elimination mechanisms (3) are placed in the chambers, and the resistive noise elimination mechanisms (3) comprise perforated inner shells (31) and sound absorption media (32).
5. A muffler device for a hvac ventilation system as set forth in claim 4, wherein: the front end of the perforated inner shell (31) is a hollow cuboid, the rear end of the perforated inner shell (31) is a hollow trapezoid, the rear end opening of the perforated inner shell (31) is larger than the front end opening, and a plurality of through holes are formed in the side wall of the perforated inner shell (31).
6. A muffler device for a hvac ventilation system as set forth in claim 4, wherein: the sound absorbing medium (32) fills the gap between the perforated inner shell (31) and the partition plate (121), and the sound absorbing medium (32) is tightly attached to the outer wall of the perforated inner shell (31).
7. A muffler device for a hvac ventilation system as set forth in claim 4, wherein: the inner wall of the third pipeline (13) is provided with a plurality of connecting grooves (131), the silencing plate (4) is inserted into the connecting grooves (131), the silencing plate (4) is positioned at the front end of the outlet of the resistive silencing mechanism (3), and the silencing plate (4) separates acoustic energy from the resistive silencing mechanism (3).
8. A muffler device for a hvac ventilation system as claimed in claim 1, wherein: the splicing parts of the first pipeline (11), the second pipeline (12) and the third pipeline (13) are fixedly connected with second connecting pieces (5), the second connecting pieces (5) are mutually attached, the second connecting pieces (5) are provided with a plurality of connecting holes, and bolts and nuts penetrate through the connecting holes to connect the adjacent second connecting pieces (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321722010.7U CN220303859U (en) | 2023-07-04 | 2023-07-04 | Muffler device for heating ventilation air conditioning ventilation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321722010.7U CN220303859U (en) | 2023-07-04 | 2023-07-04 | Muffler device for heating ventilation air conditioning ventilation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220303859U true CN220303859U (en) | 2024-01-05 |
Family
ID=89349307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321722010.7U Active CN220303859U (en) | 2023-07-04 | 2023-07-04 | Muffler device for heating ventilation air conditioning ventilation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220303859U (en) |
-
2023
- 2023-07-04 CN CN202321722010.7U patent/CN220303859U/en active Active
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