CN109764005B - Silencing air filter - Google Patents
Silencing air filter Download PDFInfo
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- CN109764005B CN109764005B CN201910107392.4A CN201910107392A CN109764005B CN 109764005 B CN109764005 B CN 109764005B CN 201910107392 A CN201910107392 A CN 201910107392A CN 109764005 B CN109764005 B CN 109764005B
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- 230000030279 gene silencing Effects 0.000 title claims abstract description 67
- 239000011148 porous material Substances 0.000 claims abstract description 38
- 229920000742 Cotton Polymers 0.000 claims abstract description 17
- 238000007789 sealing Methods 0.000 claims abstract description 16
- 230000001681 protective effect Effects 0.000 claims abstract description 3
- 238000003466 welding Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 230000008030 elimination Effects 0.000 description 3
- 238000003379 elimination reaction Methods 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The whole silencing air filter is rectangular and comprises an outer shell and an inner filter element inner frame, wherein a plurality of groups of rainproof grids are arranged on the periphery of the outer shell, a plate-frame type air filter silencing shield is fixed on the wall of a clean air chamber at an air outlet, the plate-frame type air filter silencing shield comprises frames with two through ends of the shield, a protective net is fixed in the frames at the upper end, and a silencing module is fixed in the frames at the lower end; the inner side of the frame at the lower end is welded with a baffle plate parallel to the frame, the inner side of the baffle plate is welded with a pore plate parallel to the baffle plate, a cavity with only an opening at the lower part is arranged between the baffle plate and the pore plate, noise-reducing cotton is filled in the cavity, and a sealing plate is fixed at the opening. Compared with the prior art, the filter has the technical effects that the silencing device is arranged at the rainproof grid, so that noise is eliminated in advance, and the silencing pressure of follow-up equipment is reduced.
Description
Technical Field
The invention relates to a plate and frame type air filter.
Background
The main function of the plate and frame air filter is to provide a sufficient, clean air source for the compressor. The plate-frame air filter is of a four-side air inlet structure, the air filter element is arranged in a frame of a closed rectangular structure, filtered air flows into a clean air chamber with four sides and a closed top, and the bottom is an outlet of the filtered air.
The axial flow air compressor is operated with a large noise, and the noise is transmitted in two modes, one is transmitted outwards through the compressor shell, and the other is transmitted along the air flow pipeline. When the noise is transmitted along the shell, the transmission resistance of the thicker casting shell to the noise is larger, and more noise is transmitted along the pipeline.
The plate-frame air filter has a two-layer structure: the outer shell of the outer side, the filter core inner frame of the inner layer, the filter core inner frame is the air purifying chamber, the air outlet is arranged on the air purifying chamber, and a clean air source is provided for downstream equipment. Wherein the air inlet channel arranged on the shell is a rain-proof grid, and the air inlet channel arranged on the inner frame of the filter element is a filter element. Outside air enters the air purifying chamber from the rain-proof grid.
Disclosure of Invention
The invention aims to solve the technical problems: the rainproof grid is not provided with a silencing device.
The technical scheme of the invention is as follows:
a silencing air filter is integrally rectangular and comprises an outer shell and an inner filter element inner frame, wherein multiple groups of rainproof grids are arranged on the periphery of the outer shell, filter elements are fixed on the periphery of the inner filter element inner frame, a closed space in the inner filter element inner frame is a clean air chamber, an air outlet communicated with downstream equipment is formed in the clean air chamber, outside air can enter the clean air chamber from the rainproof grids and the filter elements, each group of rainproof grids comprises a plurality of rainproof sheets inside the rainproof grids, a circle of pore plates matched with the rainproof grids in shape are fixed on the inner side of the outer shell, a space between the outer shell and the pore plates is an annular space, sealing plates are fixed on the end portions of each side of the rainproof grids in the space, the space surrounded by the outer shell, the sealing plates and the pore plates is a first space, the space surrounded by the rainproof grids, the sealing plates and the pore plates is a second space, silencing cotton is filled in the first space, a plurality of silencing blocks A in the vertical directions are fixed in the second space, the whole silencing block A is columnar, the side faces are formed by folding and the pore plates are fixed on the upper end face and the lower end faces.
A plate-frame type air filter silencing shield is fixed on the wall of the clean air chamber at the air outlet, and comprises frames with two through ends, a protective net is fixed in the frame at the upper end, and a silencing module is fixed in the frame at the lower end; a baffle plate parallel to the frame is welded on the inner side of the frame at the lower end, a pore plate parallel to the baffle plate is welded on the inner side of the baffle plate, a cavity with only an opening at the lower part is arranged between the baffle plate and the pore plate, noise-reducing cotton is filled in the cavity, and a sealing plate is fixed at the opening; the silencing module comprises a plurality of silencing blocks B which are arranged in parallel, wherein two ends of each silencing block B are formed by welding pore plates in a penetrating and hollow column-shaped channel, silencing cotton is filled in the channel, two ends of each silencing block B are distributed and fixed on blind plates on two sides, and the blind plates are fixed on a frame; the pore plate is provided with a plurality of pores with different pore sizes.
The filter element external fixation plate frame type silencing coarse filter screen for the air filter comprises a coarse filter screen shell, wherein the filter screens are fixed on two side surfaces of the coarse filter screen shell, a plurality of parallel silencing devices are fixed in a surrounding space between the two filter screens and the coarse filter screen shell, and two side surfaces of the silencing devices are fixed on the filter screens on one side respectively; each silencing device comprises an inner layer of pore plates and an outer layer of pore plates, the pore plates are folded into square waves, and silencing cotton is filled in the space between the two pore plates; a plurality of holes with different pore sizes are distributed on the pore plate; the end of the silencing device extends into the coarse screen housing.
The pore plate is provided with a plurality of pores with different pore sizes.
The silencing block A is welded on the inner side of the rainproof grid.
The sealing plate is welded with the shell and the pore plate.
The distance between the housing and the orifice plate was 30mm.
Compared with the prior art, the filter has the technical effects that the silencing device is arranged at the rainproof grid, so that noise is eliminated in advance, and the silencing pressure of follow-up equipment is reduced.
Drawings
Fig. 1 is a schematic diagram of the present invention.
Fig. 2 is a left-hand schematic view of fig. 1.
Fig. 3 is an enlarged schematic view of the region a in fig. 2.
Fig. 4 is a schematic top view of fig. 1.
Fig. 5 is an expanded schematic view of the orifice plate.
Fig. 6 is a schematic view of a sound deadening block.
Fig. 7 is an enlarged schematic view of region b of fig. 4.
Fig. 8 is a schematic view of a plate and frame air filter muffler shroud.
Fig. 9 is a schematic top view of fig. 8.
Fig. 10 is an enlarged schematic view at A-A in fig. 9.
Fig. 11 is a view of a silencing coarse screen for a plate and frame air filter.
Fig. 12 is a schematic cross-sectional view of the muffler device of fig. 11 in a horizontal direction.
Fig. 13 is an enlarged schematic view of the region a in fig. 12.
Detailed Description
1-7, a silencing air filter is rectangular overall and comprises an outer shell 50 and an inner filter element inner frame 60, wherein a plurality of groups of rainproof grids 51 are arranged on the periphery of the outer shell 50, filter elements 61 are fixed on the periphery of the inner filter element frame 60, a closed space 54 in the inner filter element frame 60 is a gas purifying chamber, an air outlet 55 communicated with downstream equipment is arranged in the gas purifying chamber, and external air can enter the gas purifying chamber from the rainproof grids 51 and the filter elements 61. Each set of flashing 51 includes a plurality of flashing inner flashing 82.
Referring to fig. 4 and 7, a circle of orifice plate 80 matching the shape of the orifice plate 80 is fixed on the inner side of the casing 50, so that a space between the casing 50 and the orifice plate 80 is an annular space, in the space, a sealing plate 92 is fixed at the end part of each side of the rain-proof grid 51, so that a space surrounded by the casing 50, the sealing plate 92 and the orifice plate 80 is a first space 99, a space surrounded by the rain-proof grid 51, the sealing plate 92 and the orifice plate 80 is a second space 98, the first space 99 is filled with noise-reducing cotton 83, and a plurality of noise-reducing blocks a81 in the vertical direction are fixed in the second space 98.
Referring to fig. 6 and 7, the silencing block a81 is integrally columnar, the side surface is formed by folding the orifice plate 80, the blind plates 86 are fixed on the upper end surface and the lower end surface, and the silencing cotton 83 is arranged in the silencing block a81.
Referring to fig. 5, the orifice plate 80 is provided with a plurality of holes of different pore sizes in order to eliminate sound waves of different frequencies.
For fixation, a sound-deadening block a81 is welded inside the rain-proof grille 51.
For fixation, the seal plate 92 is welded to the housing 50 and the orifice plate 80.
For convenience, the distance between the housing 50 and the orifice plate 80 is 30mm.
Referring to fig. 8-10, to further reduce noise, a plate and frame type air filter noise elimination shield is fixed on the wall of the clean air chamber at the air outlet 55, the plate and frame type air filter noise elimination shield comprises a frame 1 with two through ends of the shield, a protection net 2 is fixed in the frame at the upper end (see reference sign b of fig. 8), and a noise elimination module 3 is fixed in the frame at the lower end (see reference sign a of fig. 8). The inner side of the frame 1 at the lower end is welded with a baffle plate 8 parallel to the frame, the inner side of the baffle plate 8 is welded with a pore plate 80 parallel to the baffle plate, a cavity (see fig. 9 and 10) with only an opening below is arranged between the baffle plate 8 and the pore plate 80, noise-reducing cotton 83 is filled in the cavity, and a sealing plate 21 is fixed at the opening. During processing, the silencing cotton is filled first, and then the sealing plate is fixed. The silencing module 3 comprises a plurality of parallel silencing blocks B4, two ends of each silencing block B4 are formed by welding pore plates 80 in a penetrating and hollow column-shaped channel, silencing cotton 83 is filled in the channel, two end parts of each silencing block B4 are distributed and fixed on blind plates 7 on two sides, and the blind plates 7 are fixed on the frame 1. During processing, the silencing cotton is filled first, and then the blind plate is fixed. The orifice plate 80 is provided with a plurality of holes of different pore sizes in order to eliminate sound waves of different frequencies.
As shown in fig. 11-13, in order to further reduce noise, the filter core 61 is externally fixed with a silencing coarse screen for a plate-frame type air filter, the silencing coarse screen for a plate-frame type air filter comprises a coarse screen housing 31, the filter screens 33 are fixed on both sides of the coarse screen housing 31, a plurality of parallel silencing devices 35 are fixed in a space surrounding a city between the two filter screens 33 and the coarse screen housing 31, and both sides of the silencing devices 35 are fixed on the filter screens 33 on the respective sides. Each muffler device 35 includes an inner and outer perforated plates 80, the perforated plates 80 are folded in a square wave shape, and a space between the perforated plates 80 is filled with muffler cotton 83. The orifice plate 80 is provided with a plurality of holes of different pore sizes in order to eliminate sound waves of different frequencies. The end of the silencing device 35 extends into the coarse screen housing 31, which is more secure.
Other content is part of the prior art.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that several changes and modifications can be made without departing from the general inventive concept, and these should also be regarded as the scope of the invention.
Claims (7)
1. The utility model provides a amortization air cleaner, wholly be the rectangle, shell (50) including the outside, filter core inner frame (60) of inlayer, all be equipped with multiunit rain-proof bars (51) around shell (50), filter core inner frame (60) all fix filter core (61) around, enclosure space (54) in filter core inner frame (60) are the air-purifying room, be equipped with air outlet (55) of intercommunication downstream equipment in the air-purifying room, external air can get into the air-purifying room from rain-proof bars (51), filter core (61), every group rain-proof bars (51) include inside rain-proof piece (82) of a plurality of rain-proof bars, its characterized in that:
a circle of orifice plate (80) matched with the shape of the orifice plate is fixed on the inner side of the shell (50), a space between the shell (50) and the orifice plate (80) is an annular space, in the space, sealing plates (92) are fixed at the end parts of each side of the rain-proof grid (51), the space surrounded by the shell (50), the sealing plates (92) and the orifice plate (80) is a first space (99), the space surrounded by the rain-proof grid (51), the sealing plates (92) and the orifice plate (80) is a second space (98), silencing cotton (83) is filled in the first space (99), a plurality of silencing blocks A (81) in the vertical direction are fixed in the second space (98), the silencing blocks A (81) are integrally columnar, the side surfaces are formed by folding the orifice plate (80), blind plates (86) are fixed on the upper end surface and the lower end surfaces of the silencing blocks A (81) are internally silencing cotton (83).
2. The sound deadening air filter according to claim 1, wherein: a plate frame type air filter silencing shield is fixed on the wall of the clean air chamber at the air outlet (55), the plate frame type air filter silencing shield comprises frames (1) with two through ends of the shield, a protective net (2) is fixed in the frames at the upper end, and a silencing module (3) is fixed in the frames at the lower end; a baffle (8) parallel to the frame is welded on the inner side of the frame (1) at the lower end, a pore plate (80) parallel to the baffle (8) is welded on the inner side of the baffle (8), a cavity with only an opening at the lower part is arranged between the baffle (8) and the pore plate (80), noise-reducing cotton (83) is filled in the cavity, and a sealing plate (21) is fixed at the opening; the silencing module (3) comprises a plurality of silencing blocks B (4) which are arranged in parallel, wherein the silencing blocks B (4) are formed by welding pore plates (80) into a column-shaped channel with two transparent and hollow ends, silencing cotton (83) is filled in the channel, two ends of the silencing blocks B (4) are distributed and fixed on blind plates (7) on two sides, and the blind plates (7) are fixed on the frame (1); a plurality of holes with different pore sizes are distributed on the pore plate (80).
3. The sound deadening air filter according to claim 1, wherein: the filter element (61) is externally fixed with a silencing coarse filter screen for the plate-frame air filter, the silencing coarse filter screen for the plate-frame air filter comprises a coarse filter screen shell (31), filter screens (33) are fixed on two side surfaces of the coarse filter screen shell (31), a plurality of parallel silencing devices (35) are fixed in a space surrounding a city between the two filter screens (33) and the coarse filter screen shell (31), and two side surfaces of the silencing devices (35) are fixed on the filter screens (33) on one side respectively; each silencing device (35) comprises an inner layer orifice plate (80) and an outer layer orifice plate (80), the orifice plates (80) are folded into square waves, and silencing cotton (83) is filled in a space between the two orifice plates (80); a plurality of holes with different pore sizes are distributed on the pore plate (80); the end of the silencing device (35) extends into the coarse screen housing (31).
4. The sound deadening air filter according to claim 1, wherein: a plurality of holes with different pore sizes are distributed on the pore plate (80).
5. The sound deadening air filter according to claim 1, wherein: the silencing block A (81) is welded on the inner side of the rain-proof grid (51).
6. The sound deadening air filter according to claim 1, wherein: the sealing plate (92) is welded with the shell (50) and the orifice plate (80).
7. The sound deadening air filter according to claim 1, wherein: the distance between the housing (50) and the orifice plate (80) is 30mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910107392.4A CN109764005B (en) | 2019-02-02 | 2019-02-02 | Silencing air filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910107392.4A CN109764005B (en) | 2019-02-02 | 2019-02-02 | Silencing air filter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109764005A CN109764005A (en) | 2019-05-17 |
| CN109764005B true CN109764005B (en) | 2024-03-12 |
Family
ID=66456094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910107392.4A Active CN109764005B (en) | 2019-02-02 | 2019-02-02 | Silencing air filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109764005B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113137666A (en) * | 2021-03-01 | 2021-07-20 | 青岛海尔空调电子有限公司 | Filter assembly and air processor with same |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5791314A (en) * | 1981-02-04 | 1982-06-07 | Caterpillar Mitsubishi Ltd | Device for reducing engine noise |
| WO1992014023A2 (en) * | 1991-01-23 | 1992-08-20 | Cox Marcus C | Sound deadening window ventilation apparatus |
| US6174342B1 (en) * | 1999-07-02 | 2001-01-16 | Hepa Corporation | High filter efficiency, low energy consumption, and low noise fan filter unit |
| CN203329519U (en) * | 2013-06-13 | 2013-12-11 | 洛阳毅兴石化电器仪表设备有限公司 | Plate frame type air filter with front pre-filter device |
| CN203335487U (en) * | 2013-06-13 | 2013-12-11 | 洛阳毅兴石化电器仪表设备有限公司 | Sheet frame type air filter with variable structure |
| CN103850987A (en) * | 2014-02-19 | 2014-06-11 | 江苏常净环保科技有限公司 | Fan muffler for dust remover |
| CN203743083U (en) * | 2014-02-19 | 2014-07-30 | 江苏常净环保科技有限公司 | Fan silencer used for dust remover |
| CN108252960A (en) * | 2017-12-28 | 2018-07-06 | 南京磁谷科技有限公司 | A kind of noise elimination cabinet of high-speed centrifugal fan |
| CN208380992U (en) * | 2018-06-26 | 2019-01-15 | 山东海福德机械有限公司 | A kind of dustproof construction of air blower |
| CN209586805U (en) * | 2019-02-02 | 2019-11-05 | 洛阳毅兴石化电器仪表设备有限公司 | A kind of silencing air filter |
-
2019
- 2019-02-02 CN CN201910107392.4A patent/CN109764005B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5791314A (en) * | 1981-02-04 | 1982-06-07 | Caterpillar Mitsubishi Ltd | Device for reducing engine noise |
| WO1992014023A2 (en) * | 1991-01-23 | 1992-08-20 | Cox Marcus C | Sound deadening window ventilation apparatus |
| US6174342B1 (en) * | 1999-07-02 | 2001-01-16 | Hepa Corporation | High filter efficiency, low energy consumption, and low noise fan filter unit |
| CN203329519U (en) * | 2013-06-13 | 2013-12-11 | 洛阳毅兴石化电器仪表设备有限公司 | Plate frame type air filter with front pre-filter device |
| CN203335487U (en) * | 2013-06-13 | 2013-12-11 | 洛阳毅兴石化电器仪表设备有限公司 | Sheet frame type air filter with variable structure |
| CN103850987A (en) * | 2014-02-19 | 2014-06-11 | 江苏常净环保科技有限公司 | Fan muffler for dust remover |
| CN203743083U (en) * | 2014-02-19 | 2014-07-30 | 江苏常净环保科技有限公司 | Fan silencer used for dust remover |
| CN108252960A (en) * | 2017-12-28 | 2018-07-06 | 南京磁谷科技有限公司 | A kind of noise elimination cabinet of high-speed centrifugal fan |
| CN208380992U (en) * | 2018-06-26 | 2019-01-15 | 山东海福德机械有限公司 | A kind of dustproof construction of air blower |
| CN209586805U (en) * | 2019-02-02 | 2019-11-05 | 洛阳毅兴石化电器仪表设备有限公司 | A kind of silencing air filter |
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| Publication number | Publication date |
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| CN109764005A (en) | 2019-05-17 |
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