CN209586805U - A kind of silencing air filter - Google Patents

Abstract

A kind of silencing air filter, generally rectangle, the air outlet of connection upstream device is equipped in air-purifying chamber, extraneous air can be from rain-proof grid, filter core enters air-purifying chamber, every group of rain-proof grid include rain-proof piece inside multiple rain-proof grid, a circle and the matched orifice plate of its shape are fixed on the inside of shell, make the space annulus between shell and orifice plate, in the space, end all fixing closing plates of every side rain-proof grid, make shell, the space that sealing plate and orifice plate surround is the first space, rain-proof grid, the space that sealing plate and orifice plate surround is second space, silencing cotton is filled in first space, the silencing block of multiple vertical directions is fixed in second space.Compared with the existing technology, the technical effect of the utility model is this filter, and silencing means is equipped at rain-proof grid, noise elimination has been carried out in advance, has alleviated the noise reduction pressure of follow-up equipment.

Description

A kind of silencing air filter

Technical field

The utility model relates to a kind of plate-frame air filters.

Background technique

Plate-frame air filter main function is that enough, clean air-source is provided for compressor.Plate and frame air Filter is four sides air inlet structure, and air filtering core is mounted in the frame of closed rectangular configuration, and filtered air flows into one In a four sides and air-purifying chamber with a closed top, bottom is the outlet of filtered air.

Axis stream air compressor has biggish noise to generate when working, there are two the transfer mode of this noise is main, one A transmitted outward by compressor case, the other is transmitting along air flowline.When along casing transmitting, thicker casting Part casing hinders the transmitting of noise larger, more noises or suitable pipeline transmitting.

Plate-frame air filter is double-layer structure: the filter core inner frame of the shell in outside, internal layer, filter core inner frame is net Gas chamber is equipped with air outlet above air-purifying chamber, provides clean air-source for upstream device.The air intake passage being wherein arranged on shell For rain-proof grid, the air intake passage being arranged on filter core inner frame is filter core.Extraneous air enters net gas from rain-proof grid, rain-proof grid Room.

Utility model content

The technical problems to be solved in the utility model: silencing means is not provided at rain-proof grid.

The technical solution of the utility model specifically:

A kind of silencing air filter, generally rectangle, the filter core inner frame of shell, internal layer including outside, shell Surrounding is designed with multiple groups rain-proof grid, and the surrounding of filter core inner frame fixes filter core, and the enclosure space in filter core inner frame is net gas Room, is equipped with the air outlet of connection upstream device in air-purifying chamber, and extraneous air can enter air-purifying chamber from rain-proof grid, filter core, and every group Rain-proof grid include rain-proof piece inside multiple rain-proof grid, fix a circle and the matched orifice plate of its shape on the inside of shell, make shell and hole Space between plate is annulus, and in the space, end all fixing closing plates of every side rain-proof grid make shell, sealing plate and hole The space that plate surrounds is the first space, and the space that rain-proof grid, sealing plate and orifice plate surround is second space, fills and disappears in the first space Sound cotton fixes the silencing block of multiple vertical directions, silencing block generally column in second space, and side is orifice plate folding forming, The fixed blind plate in upper and lower two end faces, silencing block inside silencing cotton.

The different hole of multiple pore sizes is distributed on orifice plate.

Silencing block is welded on the inside of rain-proof grid.

Sealing plate and shell, orifice plate weld.

The distance between shell and orifice plate are 30mm.

Compared with the existing technology, the technical effect of the utility model is this filter, and noise reduction is equipped at rain-proof grid and is filled It sets, has carried out noise elimination in advance, alleviate the noise reduction pressure of follow-up equipment.

Detailed description of the invention

Fig. 1 is the schematic diagram of the utility model.

Fig. 2 is the left view schematic diagram of Fig. 1.

Fig. 3 is the enlarged diagram in the area Tu2Zhong a.

Fig. 4 is the schematic top plan view of Fig. 1.

Fig. 5 is the expanded schematic diagram of orifice plate.

Fig. 6 is the schematic diagram of muffling device.

Fig. 7 is the enlarged diagram in the area Tu4Zhong b.

Specific embodiment

Such as Fig. 1-7, a kind of silencing air filter, generally rectangle, the filter core inside casing of shell 50, internal layer including outside Frame 60, the surrounding of shell 50 are designed with multiple groups rain-proof grid 51, and the surrounding of filter core inner frame 60 fixes filter core 61, filter core inside casing Enclosure space 54 in frame 60 is air-purifying chamber, is equipped with the air outlet 55 of connection upstream device in air-purifying chamber, and extraneous air can be from Rain-proof grid 51, filter core 61 enter air-purifying chamber.Every group of rain-proof grid 51 include rain-proof piece 82 inside multiple rain-proof grid.

Referring to fig. 4, Fig. 7 fixes a circle and the matched orifice plate 80 of its shape on the inside of shell 50, make shell 50 and orifice plate 80 it Between space be annulus, in the space, end all fixing closing plates 92 of every side rain-proof grid 51 make shell 50, sealing plate 92 It is the first space 99 with the space that orifice plate 80 surrounds, the space that rain-proof grid 51, sealing plate 92 and orifice plate 80 surround is second space 98, Silencing cotton 83 is filled in first space 99, and the silencing block 81 of multiple vertical directions is fixed in second space 98.

Referring to Fig. 6,7, the generally column of silencing block 81, side is 80 folding forming of orifice plate, and upper and lower two end faces fixation is blind Plate 86,81 inside silencing cotton 83 of silencing block.

Referring to Fig. 5, the different hole of multiple pore sizes is distributed on orifice plate 5, it is therefore an objective to eliminate the sound wave of different frequency.

For fixation, silencing block 81 is welded on 51 inside of rain-proof grid.

For fixation, sealing plate 92 and shell 50, orifice plate 80 are welded.

For convenience, the distance between shell 50 and orifice plate 80 are 30mm.

Its working principle is that:

Such as Fig. 1-7, after this equipment installs, filter pulp can reduce partial noise.

Other content participates in the prior art.

Above-described is only preferred embodiments of the present invention, it is noted that for those skilled in the art For, under the premise of not departing from the utility model general idea, several changes and improvements can also be made, these also should be considered as The protection scope of the utility model.

Claims (5)

1. a kind of silencing air filter, generally rectangle, the filter core inner frame (60) of shell (50), internal layer including outside, The surrounding of shell (50) is designed with multiple groups rain-proof grid (51), and the surrounding of filter core inner frame (60) fixes filter core (61), in filter core Enclosure space (54) in frame (60) is air-purifying chamber, and the air outlet (55) of connection upstream device is equipped in air-purifying chamber, extraneous Air can enter air-purifying chamber from rain-proof grid (51), filter core (61), and every group of rain-proof grid (51) includes rain-proof piece inside multiple rain-proof grid (82), it is characterised in that:

A circle and the matched orifice plate of its shape (80) are fixed on the inside of shell (50), makes the space between shell (50) and orifice plate (80) For annulus, in the space, end all fixing closing plates (92) of every side rain-proof grid (51) make shell (50), sealing plate (92) The space surrounded with orifice plate (80) is the first space (99), and the space that rain-proof grid (51), sealing plate (92) are surrounded with orifice plate (80) is Second space (98), fills silencing cotton (83) in the first space (99), and second space fixes disappearing for multiple vertical directions in (98) Sound block (81), silencing block (81) generally column, side are orifice plate (80) folding forming, the fixed blind plate in upper and lower two end faces (86), the internal silencing cotton (83) of silencing block (81).

2. silencing air filter as described in claim 1, it is characterised in that: orifice plate is distributed multiple pore sizes not on (80) One hole.

3. silencing air filter as described in claim 1, it is characterised in that: silencing block (81) is welded in rain-proof grid (51) Side.

4. silencing air filter as described in claim 1, it is characterised in that: sealing plate (92) and shell (50), orifice plate (80) Welding.

5. silencing air filter as described in claim 1, it is characterised in that: the distance between shell (50) and orifice plate (80) For 30mm.