CN215979805U - Air noise elimination filter assembly - Google Patents
Air noise elimination filter assembly Download PDFInfo
- Publication number
- CN215979805U CN215979805U CN202122543035.8U CN202122543035U CN215979805U CN 215979805 U CN215979805 U CN 215979805U CN 202122543035 U CN202122543035 U CN 202122543035U CN 215979805 U CN215979805 U CN 215979805U
- Authority
- CN
- China
- Prior art keywords
- silencing pipe
- air
- filter element
- silencing
- cylinder shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Compressor (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The utility model discloses an air silencing filter assembly, which belongs to the field of compressors and comprises a cylinder shell, a first silencing pipe, a second silencing pipe, a filter element and a plug; the circumferential side wall of the cylinder shell is provided with an air outlet, and the outer side of the air outlet is provided with a flange; the first silencing pipe is fixedly arranged in the cylinder shell, and a first clearance cavity is formed between the first silencing pipe and the cylinder shell; the second silencing pipe is fixedly arranged in the first silencing pipe, and a second clearance cavity is formed between the second silencing pipe and the first silencing pipe; the filter element is detachably and fixedly connected to the upper end of the cylinder shell, the upper end of the air inlet flow channel in the filter element is closed, and the lower end of the air inlet flow channel in the filter element is connected with the upper end of the second silencing pipe; the sealing plug is arranged at the lower end of the shell of the cylinder body in a sealing way, and simultaneously seals the lower ends of the first silencing pipe and the second silencing pipe; a plurality of air holes are formed in the circumferential side wall of the upper end of the first silencing pipe and the circumferential side wall of the lower end of the second silencing pipe. The utility model can effectively reduce noise and prolong the service life of equipment.
Description
Technical Field
The utility model relates to the field of compressors, in particular to an air silencing filter assembly.
Background
At present, most air noise elimination filter assemblies in the market are matched on a screw compressor, however, the working modes of the screw compressor and a piston compressor are different, so that the existing air noise elimination filter assemblies have the defects of insufficient structural strength, high noise, poor shock resistance and the like when being directly applied to the piston compressor.
SUMMERY OF THE UTILITY MODEL
Aiming at the problem that the air noise elimination filter assembly in the prior art has large air inlet noise, the utility model aims to provide the air noise elimination filter assembly.
In order to achieve the purpose, the technical scheme of the utility model is as follows:
an air acoustic filter assembly comprising:
the gas outlet is formed in the circumferential side wall of the cylinder shell, and a flange is mounted on the outer side of the gas outlet;
the first silencing pipe is fixedly arranged in the cylinder shell, and a first clearance cavity is formed between the first silencing pipe and the cylinder shell;
the second silencing pipe is fixedly arranged in the first silencing pipe, and a second gap cavity is formed between the second silencing pipe and the first silencing pipe;
the filter element is detachably and fixedly connected to the upper end of the cylinder shell, the upper end of an air inlet flow channel in the filter element is closed, and the lower end of the air inlet flow channel in the filter element is connected with the upper end of the second silencing pipe;
the sealing plug is arranged at the lower end of the cylinder shell in a sealing mode and simultaneously seals the lower ends of the first silencing pipe and the second silencing pipe;
and a plurality of air holes are formed in the circumferential side wall at the upper end of the first silencing pipe and the circumferential side wall at the lower end of the second silencing pipe.
Preferably, a cylinder cover plate is fixed to the upper end of the cylinder shell, a screw is fixedly mounted on one side of the top surface of the cylinder cover plate, the screw penetrates through an air inlet flow channel of the filter element, the upper end of the air inlet flow channel is sealed through the filter element cover plate, a screw through hole for the screw to pass through is formed in the filter element cover plate, a nut is screwed at one end of the screw penetrating through the filter element cover plate, and a through hole for communicating the air inlet flow channel with the second silencing pipe is formed in the cylinder cover plate.
Preferably, the nut is a hand-screwed nut or a claw nut.
Preferably, the first silencing pipe, the second silencing pipe and the cylinder shell are coaxially arranged.
Preferably, the air holes of the first silencer duct and the air holes of the second silencer duct are offset from each other in the axial direction.
Preferably, the plurality of air holes on the first silencing pipe and/or the second silencing pipe are distributed at equal intervals along the axial direction and the circumferential direction.
Preferably, the radial width of the first clearance cavity is greater than the radial width of the second clearance cavity.
Preferably, the sealing plug is in a frustum shape, the diameter of the small end of the sealing plug is matched with the outer diameter of the first silencing pipe, and the diameter of the large end of the sealing plug is matched with the inner diameter of the cylinder shell.
By adopting the technical scheme, due to the arrangement of the first silencing pipe, the second silencing pipe and the air holes on the first silencing pipe, after being filtered by the filter element, air firstly enters the second silencing pipe with smaller diameter, then flows into the first silencing pipe from the air hole at the lower end of the second silencing pipe, then flows into the shell of the cylinder body from the air hole at the upper end of the first silencing pipe, and finally is exhausted from the air outlet, so that the air is effectively diffused in the process of flowing through the air holes, and the flowing path of the air forms multiple baffling, thereby effectively reducing the noise; in addition, due to the arrangement of the sealing plug, the air flow is always controlled in the shell of the cylinder body, sound is further prevented from being spread outwards in a physical isolation mode, and the purpose of noise reduction is effectively achieved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a cross-sectional view of the present invention.
In the figure, 1-cylinder shell, 2-first silencing pipe, 3-second silencing pipe, 4-cylinder cover plate, 5-filter element, 6-screw, 7-filter element cover plate, 8-nut, 9-sealing plug, 10-flange, diagonal draw bar and 12-through hole.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on structures shown in the drawings, and are only used for convenience in describing the present invention, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the technical scheme, the terms "first" and "second" are only used for referring to the same or similar structures or corresponding structures with similar functions, and are not used for ranking the importance of the structures, or comparing the sizes or other meanings.
In addition, unless expressly stated or limited otherwise, the terms "mounted" and "connected" are to be construed broadly, e.g., the connection may be a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two structures can be directly connected or indirectly connected through an intermediate medium, and the two structures can be communicated with each other. To those skilled in the art, the specific meanings of the above terms in the present invention can be understood in light of the present general concepts, in connection with the specific context of the scheme.
An air noise elimination filter assembly is shown in figures 1 and 2 and comprises a cylinder shell 1, a first noise elimination pipe 2, a second noise elimination pipe 3, a cylinder cover plate 4, a filter element 5 and a filter element cover plate 7.
The cylinder shell 1, the first silencing tube 2 and the second silencing tube 3 are all of hollow cylindrical structures and are coaxially arranged from outside to inside, a first clearance cavity is formed between the first silencing tube 2 and the cylinder shell 1, and a second clearance cavity is formed between the second silencing tube 3 and the first silencing tube 2. In this embodiment, a lower port of the cartridge housing 1 is mounted with a plug 9, such as a rubber plug, for closing the lower port of the cartridge housing 1, and the plug 9 simultaneously closes the lower ports of the first and second muffling tubes 2 and 3. In this embodiment, the upper port of the cylinder housing 1 is also closed by the cylinder cover plate 4, for example, both are fixed by welding or screwing, and the upper ends of the first silencing tube 2 and the second silencing tube 3 are both fixed to one side of the bottom surface of the cylinder cover plate 4, for example, both are fixed by welding or screwing.
The filter element 5 can be detachably and fixedly installed on one side of the top surface of the cylinder cover plate 4, in the embodiment, a screw rod 6 is fixedly installed on one side of the top surface of the cylinder cover plate 4, the lower end of the filter element 5 abuts against the top surface of the cylinder cover plate 4, the screw rod 6 is arranged in an air inlet channel of the filter element 5 in a penetrating mode, a filter element cover plate 7 used for sealing the air inlet channel of the filter element 5 covers one side of the upper end of the filter element 5, meanwhile, a screw rod through hole for the screw rod 6 to penetrate is formed in the filter element cover plate 7, a nut 8 is screwed on one end, penetrating through the filter element cover plate 7, of the screw rod 6, for example, the nut can be screwed by hand or a claw nut, after the nut 8 is screwed in use, the filter element 5 can be pressed on one side of the top surface of the cylinder cover plate 4 through the filter element cover plate 7, and the filter element 5 can be conveniently detached so as to be replaced or maintained. In addition, the cylinder cover plate 4 is provided with a through hole 12 for communicating the air inlet flow passage of the filter element 5 with the second silencing pipe 3, so that the air filtered by the filter element 5 can directly enter the second silencing pipe 3 through the through hole 12. In addition, in consideration of the fact that it is not suitable to fix the screw 6 directly to the through hole 12, in the present embodiment, the screw 6 is welded to the cylinder cover 4 by the diagonal members 11, and in order to improve the stability of the screw 6, three diagonal members 11 are arranged, and the three diagonal members 11 are evenly distributed around the side wall circumference of the screw 6 at intervals of 120 °.
In this embodiment, a plurality of air holes are formed in the circumferential side wall of the upper end of the first muffling pipe 2 and the circumferential side wall of the lower end of the second muffling pipe 3, and meanwhile, the plurality of air holes in the first muffling pipe 2 and the second muffling pipe 3 are distributed at equal intervals in the axial direction and the circumferential direction, that is, a plurality of rows of air holes are uniformly distributed in the circumferential direction, and each row is provided with a plurality of air holes at uniform intervals. And the air holes on the first silencer duct 2 and the air holes on the second silencer duct 3 are staggered in the axial direction. Correspondingly, the circumferential side wall of the cylinder shell 1 is provided with an air outlet, and the outer side of the air outlet is provided with a flange 10.
When the air filter is used, after being filtered by the filter element 5, air firstly enters the second silencing pipe 3 with smaller diameter from the upper end, flows to the lower end of the second silencing pipe 3 along the axial direction of the second silencing pipe, then flows into the first silencing pipe 2 (the second clearance cavity) from the air hole at the lower end of the second silencing pipe 3, continues to flow to the upper end of the first silencing pipe 2 along the axial direction of the first silencing pipe, then flows into the cylinder shell 1 (the first clearance cavity) from the air hole at the upper end of the first silencing pipe 2, and finally is exhausted from the flange 10 at the air outlet. In the air inlet process, when the gas flows through the air holes, the gas can be effectively diffused, and the flow path of the gas forms multiple baffling, so that the noise is effectively reduced; in addition, due to the arrangement of the sealing plug 9, the air flow is always controlled in the cylinder shell 1, sound is further prevented from being spread outwards in a physical isolation mode, and the purpose of noise reduction is effectively achieved.
In another preferred embodiment, the radial width of the first clearance cavity is configured to be larger than that of the second clearance cavity, and by increasing the volume of the first clearance cavity, the gas can be fully buffered, so that the impact of the gas on wearing parts such as the gas valve and the like is effectively reduced, and the service life of the gas valve is prolonged.
In another preferred embodiment, the plug 9 is configured to have a frustum shape, the small end diameter of the plug 9 is adapted to the outer diameter of the first silencing tube 2, and the large end diameter of the plug 9 is adapted to the inner diameter of the cylinder housing 1. So set up for the dismouting of closing plug 9 is more convenient.
In another preferred embodiment, the joint of the flange 10 and the cylinder shell 1 is subjected to strengthening treatment, such as surfacing welding, so that the structural strength of the air filter assembly is effectively improved, and the service life of the air filter assembly is prolonged.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, and the scope of protection is still within the scope of the utility model.
Claims (8)
1. An air noise elimination filter assembly which characterized in that: the method comprises the following steps:
the gas outlet is formed in the circumferential side wall of the cylinder shell, and a flange is mounted on the outer side of the gas outlet;
the first silencing pipe is fixedly arranged in the cylinder shell, and a first clearance cavity is formed between the first silencing pipe and the cylinder shell;
the second silencing pipe is fixedly arranged in the first silencing pipe, and a second gap cavity is formed between the second silencing pipe and the first silencing pipe;
the filter element is detachably and fixedly connected to the upper end of the cylinder shell, the upper end of an air inlet flow channel in the filter element is closed, and the lower end of the air inlet flow channel in the filter element is connected with the upper end of the second silencing pipe;
the sealing plug is arranged at the lower end of the cylinder shell in a sealing mode and simultaneously seals the lower ends of the first silencing pipe and the second silencing pipe;
and a plurality of air holes are formed in the circumferential side wall at the upper end of the first silencing pipe and the circumferential side wall at the lower end of the second silencing pipe.
2. The air acoustic filter assembly of claim 1, wherein: the upper end of the barrel shell is fixed with a barrel cover plate, one side of the top surface of the barrel cover plate is fixedly provided with a screw rod, the screw rod penetrates through an air inlet flow channel of the filter element, the upper end of the air inlet flow channel is sealed through the filter element cover plate, a screw rod through hole for the screw rod to penetrate through is formed in the filter element cover plate, a nut is screwed at one end of the screw rod penetrating through the filter element cover plate, and a through hole for communicating the air inlet flow channel with the second silencing pipe is formed in the barrel cover plate.
3. The air acoustic filter assembly of claim 2, wherein: the nut is a hand-screwed nut or a claw nut.
4. The air acoustic filter assembly of claim 1, wherein: the first silencing pipe, the second silencing pipe and the cylinder shell are coaxially arranged.
5. The air acoustic filter assembly of claim 1, wherein: the air holes on the first silencing pipe and the air holes on the second silencing pipe are staggered in the axial direction.
6. The air acoustic filter assembly of claim 1, wherein: the plurality of air holes on the first silencing pipe and/or the second silencing pipe are distributed at equal intervals along the axial direction and the circumferential direction.
7. The air acoustic filter assembly of claim 1, wherein: the radial width of the first clearance cavity is greater than the radial width of the second clearance cavity.
8. The air acoustic filter assembly of claim 1, wherein: the sealing plug is in a frustum shape, the diameter of the small end of the sealing plug is matched with the outer diameter of the first silencing pipe, and the diameter of the large end of the sealing plug is matched with the inner diameter of the cylinder shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122543035.8U CN215979805U (en) | 2021-10-21 | 2021-10-21 | Air noise elimination filter assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122543035.8U CN215979805U (en) | 2021-10-21 | 2021-10-21 | Air noise elimination filter assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215979805U true CN215979805U (en) | 2022-03-08 |
Family
ID=80512573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122543035.8U Active CN215979805U (en) | 2021-10-21 | 2021-10-21 | Air noise elimination filter assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215979805U (en) |
-
2021
- 2021-10-21 CN CN202122543035.8U patent/CN215979805U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN215979805U (en) | Air noise elimination filter assembly | |
| WO2009135025A2 (en) | Dual-directional cooler | |
| CN108561289A (en) | A kind of exhaust silencer | |
| CN207906033U (en) | Exhaust silencer | |
| CN210484492U (en) | Suspension cylinder, damping system and vehicle | |
| CN103321716B (en) | The reactive muffler structure that a kind of perforated pipe and narrow slit resonant cavity combine | |
| CN209990533U (en) | Adjustable exhaust silencer for internal combustion engine | |
| CN208396777U (en) | Diesel generating set low-frequency noise silencer | |
| CN212070868U (en) | Welding protection device for silencer | |
| US7464768B2 (en) | Intake and exhaust guide device for pneumatic tool | |
| CN111706739A (en) | Frequency-division combined pressure pulsation attenuation device and method | |
| CN207715213U (en) | A kind of engine exhaust muffler | |
| CN206176834U (en) | gas-liquid separator | |
| CN114593038A (en) | Novel silencer for multistage dry vacuum pump | |
| CN211889556U (en) | Welding and gas sealing tool for silencer | |
| CN219866596U (en) | Silencer of electromagnetic valve | |
| CN220185212U (en) | Muffler of excavator | |
| CN110657000A (en) | Exhaust pipe silencer | |
| CN210463275U (en) | Air conditioner | |
| CN218624562U (en) | Silencer and compressor | |
| CN217029316U (en) | Novel silencer for screw vacuum pump | |
| CN204327324U (en) | A kind of cooler for recycled exhaust gas | |
| CN217270687U (en) | Integral type secondary vacuum pump muffler of making an uproar that falls | |
| CN217785453U (en) | Noise elimination device for heating ventilation system of air conditioner | |
| CN221260278U (en) | Cylinder head water cavity pressure testing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |