CN209997322U

CN209997322U - sound-damping coarse strainer for plate-and-frame air filter

Info

Publication number: CN209997322U
Application number: CN201920186208.5U
Authority: CN
Inventors: 吴兴滨
Original assignee: Luoyang Yixing Petrochemical Electrical Appliance & Instrumentation Co Ltd
Current assignee: Luoyang Yixing Petrochemical Electrical Appliance & Instrumentation Co Ltd
Priority date: 2019-02-02
Filing date: 2019-02-02
Publication date: 2020-01-31
Anticipated expiration: 2029-02-02

Abstract

board frame is noise elimination coarse strainer for air cleaner, including the shell, the filter screen is all fixed to two sides of shell, the silencing equipment of a plurality of parallels of space internal fixation in the wall between two filter screens and the shell, silencing equipment's both sides face is fixed on the filter screen of side separately, every silencing equipment includes inside and outside two-layer orifice plate, and the orifice plate is folding to square wave shape, packs the filter pulp in the space between two orifice plates.

Description

sound-damping coarse strainer for plate-and-frame air filter

Technical Field

The utility model relates to an board frame air cleaner's accessory.

Background

The plate-and-frame air filter is of a four-side air inlet structure, an air filter element is installed in a frame of a closed rectangular structure, filtered air flows into clean air chambers with four sides and the top closed, and the bottom is an outlet of the filtered air.

Axial flow air compressors have greater noise generation during operation, with two main modes of noise transmission, being transmitted outward through the compressor casing and being transmitted along the air flow line.

The filter element is an important part for ensuring the cleanness of the air source, the price is high, the work period after period is replaced due to blockage, etc., in order to prolong the service life, is added with a coarse filter screen ( is called coarse filter), which filters larger air foreign matters and reduces the pressure of the filter element.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem who solves: the existing rough filtration can only carry out filtration and can not carry out noise elimination.

The technical scheme of the utility model specifically does:

board frame is noise elimination coarse strainer for air cleaner, including the shell, the filter screen is all fixed to two sides of shell, the interior fixed silencing equipment of a plurality of parallels of space of besieged city between two filter screens and the shell, silencing equipment's both sides face is fixed on the filter screen of side separately, every silencing equipment includes inside and outside two-layer orifice plate, and the orifice plate is folded to square wave shape, packs the filter pulp in the space between two orifice plates.

The pore plate is distributed with a plurality of pores with pore sizes of not .

The ends of the muffling apparatus extend into the housing.

The shell is made of metal materials, and the filter screen is made of stainless steel materials.

Compared with the prior art, the technical effect of the utility model is that, this colating sets up noise elimination part, not only can be used for the filtered air foreign matter, can also carry out noise elimination, has alleviateed the pressure of follow-up noise elimination part.

Drawings

Fig. 1 is a schematic diagram of the present invention.

FIG. 2 is an expanded schematic view of the orifice plate.

Fig. 3 is a schematic cross-sectional view of the horizontal direction of the sound attenuating device of fig. 1.

Fig. 4 is an enlarged view of the area a in fig. 3.

Detailed Description

Referring to fig. 1-4, a silencing coarse screen for a plate and frame air filter, comprising a housing 1, wherein two sides of the housing 1 are fixed with screens 3, a plurality of parallel silencing devices 5 are fixed in the space between the two screens 3 and the housing 1, and two sides of the silencing devices 5 are fixed on the screens 3 at the sides respectively.

Each silencing device 5 comprises an inner layer of pore plate 4 and an outer layer of pore plate 4, the pore plates 4 are folded into square wave shapes, and filter cotton 2 is filled in the space between the two pore plates 4.

The orifice plate 4 is distributed with a plurality of orifices with the pore size of not , and aims to eliminate sound waves with different frequencies.

The end of the silencing device 5 extends into the housing 1 and is thus more secure.

The shell 1 is made of metal material, and the filter screen 3 is made of stainless steel material.

The working principle is as follows:

as shown in fig. 1-4, the screen 3 is capable of filtering large pieces of foreign matter in the air when the apparatus is installed, as in prior art .

The filter cotton 2 can filter air and reduce partial noise.

The square-wave-shaped pore plate 5 increases dust holding capacity under the condition of the same filtering area, and meanwhile, the vertical (air movement direction) pore plate 5 is vertical supporting ribs, so that the strength of the pore plate is increased, and the service life of the pore plate is prolonged.

Other content participates in the prior art.

While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the general inventive concept, and it is intended to cover all such changes and modifications as fall within the true spirit and scope of the invention.

Claims

The utility model provides a board frame is noise elimination coarse strainer for air cleaner, including shell (1), characterized by that, both sides of shell (1) are all fixed filter screen (3), the space of enclosing between two filter screen (3) and shell (1) is fixed with a plurality of parallel silencing equipment (5), the both sides face of silencing equipment (5) is fixed on filter screen (3) of side respectively, every silencing equipment (5) include inside and outside two-layer orifice plate (4), orifice plate (4) are folded into the square wave shape, pack filter pulp (2) in the space between two orifice plate (4).
2. The noise elimination coarse screen for the plate-and-frame air filter as claimed in claim 1, wherein the orifice plate (4) is distributed with a plurality of orifices having a pore size of not .
3. The sound-damping coarse screen for a plate-and-frame air filter according to claim 1, wherein: the ends of the sound-damping device (5) extend into the housing (1).
4. The sound-damping coarse screen for a plate-and-frame air filter according to claim 1, wherein: the shell (1) is made of metal materials, and the filter screen (3) is made of stainless steel materials.