CN215138039U

CN215138039U - Composite filter and air purification device

Info

Publication number: CN215138039U
Application number: CN202120571264.8U
Authority: CN
Inventors: 李崇朝
Original assignee: Shenzhen Keermu Environmental Protection Material Co ltd
Current assignee: Shenzhen Keermu Environmental Protection Material Co ltd
Priority date: 2021-03-19
Filing date: 2021-03-19
Publication date: 2021-12-14
Anticipated expiration: 2031-03-19

Abstract

The utility model provides a cylindrical composite filter, which comprises a filter element body, a first end cover and a second end cover; the first end cover and the second end cover are arranged oppositely, the filter element body is a cylinder with openings at two ends, and the filter element body is limited between the first end cover and the second end cover; the filter element body comprises a first filter screen, a second filter screen, a supporting screen and a third filter screen which are coated from inside to outside. The first filter screen is used for filtering dust and inhalable particles which are transmitted in the air; the third filter screen can adsorb harmful gas; the third filter screen can intercept and filter larger suspended matters such as dust, hair, fine scraps, floccules and the like at 360 degrees. Therefore, the cylindrical composite filter can greatly improve the purification efficiency of the filter.

Description

Composite filter and air purification device

Technical Field

The utility model relates to a filter especially indicates a combined filter and air purification device.

Background

The filter is a purification device required for purifying the original ecological resources and reusing the resources. The filter element is an important component of a filter, and is generally mainly used in the filtration industries of oil filtration, water filtration, air filtration and the like. The filter medium is removed of a small amount of impurities, so that the normal operation of equipment or the cleanness of air can be protected, when fluid passes through a filter element with certain precision in the filter, the impurities are blocked, and clean fluid flows out through the filter element.

Air purifiers are generally used for dust prevention, gas defense, purification, etc. of indoor spaces, and filters are important components of air purifiers. The traditional filter is square in appearance, along with the market demand is higher and higher, the traditional square filter is limited by the shape, the contact area of the traditional square filter and the ambient air is smaller, the filtering function cannot be fully exerted, and the problem of low filtering efficiency exists.

Therefore, a cylindrical composite filter is urgently needed to improve the filtering efficiency of the filter.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: the composite filter solves the problem that the existing square filter has low filtering efficiency.

In order to solve the technical problem, the utility model discloses a technical scheme be: a first aspect provides a composite filter, comprising a filter element body, a first end cap and a second end cap;

the first end cover and the second end cover are arranged oppositely, the filter element body is a cylinder with openings at two ends, and the filter element body is limited between the first end cover and the second end cover;

the filter element body comprises a first filter screen, a second filter screen, a supporting screen and a third filter screen which are coated from inside to outside.

Further, the first filter screen is a HEPA filter screen.

Further, the second filter screen is an activated carbon filter screen.

Further, the support net is a PET framework.

Furthermore, the third filter screen is a coarse filter screen, and the coarse filter screen is made of a nylon net.

Further, the first end cap is circular, and the second end cap is disc-shaped.

Further, the first end cover is provided with a first groove, and the upper part of the filter element body is arranged in the first groove through a glue layer; the second end cover is provided with a second groove, and the lower part of the filter element body is arranged in the second groove through a glue layer.

Furthermore, the glue layer is hot melt adhesive or AB glue.

The utility model discloses the second aspect provides an air purifier device, including foretell cylinder composite filter.

The beneficial effects of the utility model reside in that: form cylinder composite filter through spacing cylindric filter core body between first end cover and first end cover, wherein, the filter core body includes by interior first filter screen, second filter screen, supporting network and the third filter screen of outer cladding. The first filter screen is used for effectively filtering dust and inhalable particles which are spread in the air; the second filter screen can adsorb harmful chemical gases which cannot be filtered by the HEPA filter screen, such as formaldehyde, benzene and the like; the third filter screen can intercept and filter larger suspended matters such as dust, hair, fine scraps, floccules and the like at 360 degrees. Therefore, the cylindrical composite filter can greatly improve the purification efficiency of the filter.

Drawings

The following detailed description of the specific structure of the present invention with reference to the accompanying drawings

Fig. 1 is a schematic structural diagram of the composite filter of the present invention.

Fig. 2 is a schematic cross-sectional view of the filter element body of the present invention.

The reference numbers are as follows:

1-a first end cap; 2-a second end cap; 3-a filter element body; 31-a first filter; 32-a second filter screen; 33-a support net; 34-a third filter.

Detailed Description

In order to explain technical contents, structural features, and objects and effects of the present invention in detail, the following description is given in conjunction with the embodiments and the accompanying drawings.

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

Current filter is mainly square, and square filter is smaller with the area of contact of surrounding air, can not the filterable function of full play, consequently has the not good problem of filter effect, the utility model discloses improve to the not good problem of filter effect.

Referring to fig. 1 and 2, fig. 1 is a schematic structural diagram of a composite filter according to the present invention.

Fig. 2 is a schematic cross-sectional view of the filter element body of the present invention. The utility model provides a composite filter, which comprises a filter element body 3, a first end cover 1 and a second end cover 2; the first end cover 1 and the second end cover 2 are arranged oppositely, the filter element body 3 is a cylinder with openings at two ends, and the filter element body 3 is limited between the first end cover 1 and the second end cover 2; the filter element body 3 comprises a first filter screen 31, a second filter screen 32, a support screen 33 and a third filter screen 34 which are coated from inside to outside.

Specifically, a cylindrical composite filter is formed by limiting a cylindrical filter element body 3 between a first end cover 1 and a second end cover 2, wherein the filter element body 3 comprises a first filter screen 31, a second filter screen 32, a support screen 33 and a third filter screen 34 which are coated from inside to outside. The first filter screen 31 is used for effectively filtering dust and inhalable particles which are spread in the air; the second filter 32 can absorb harmful chemical gases which cannot be filtered by the HEPA filter, such as formaldehyde, benzene and the like; the third filter 34 can intercept and filter larger suspended matters such as dust, hair, fine crumbs, floccules and the like at 360 degrees. Therefore, the cylindrical composite filter can greatly improve the purification efficiency of the filter.

Example 1

Further, the first filter 31 is a HEPA filter. The second filter 32 is an activated carbon filter. The support net 33 is a PET framework, and the PET framework is a cylindrical sheet with two open ends. The third filter screen 34 is a coarse filter screen, and the coarse filter screen is made of a nylon net. The first end cover 1 is circular, and the second end cover 2 is disc-shaped. The first end cover 1 is provided with a first groove, and the upper part of the filter element body 3 is arranged in the first groove through a glue layer; second end cover 2 is equipped with the second recess, 3 lower parts of filter core body pass through the glue film set up in the second recess. The glue layer is hot melt adhesive or AB glue. The first end cover 1 is an upper end cover, and the second end cover 2 is a lower end cover.

Specifically, the manufacturing process of the cylindrical composite filter of the present invention mainly comprises the following five steps:

firstly, cutting the coarse filter screen according to a specified size by a laser machine, and bonding two ends of the coarse filter screen into a circle with a specified radius by using a hot pressing method.

And secondly, cutting the PET framework according to a specified size, and bonding the end of the PET framework into a circle with a specified radius by using hot melt adhesive. And sleeving the coarse filter screen into the outer layer of the PET framework.

And thirdly, manufacturing an activated carbon filter screen, cutting the bonded activated carbon carrier (PE plastic net piece) with a specified size, coating the surface of the PE plastic net piece with glue, uniformly spraying the activated carbon on the PE plastic net piece on the surface coated with the glue, and flatly pressing by using a soft pressing plate to firmly bond the activated carbon on the PE plastic net piece. And putting the activated carbon filter screen into the inner layer of the PET framework.

And fourthly, folding and cutting the HEPA filter screen according to the specified folding height, folding number and width, and bonding two ends into a circle with the specified radius by using hot melt adhesive. And putting the HEPA filter screen into the inner layer of the active carbon screen.

And fifthly, injecting hot melt adhesive or AB adhesive into the upper end cover of the cylindrical filter, assembling the sleeved combined filter screen into the upper end cover of the cylindrical filter in which the hot melt adhesive or AB adhesive is injected together, so that the combined filter screen is firmly bonded and sealed, and the purification efficiency of the filter is ensured.

In summary, the cylindrical filter element body 3 is limited between the first end cap 1 and the second end cap 2 to form the cylindrical composite filter, wherein the filter element body 3 includes a first filter screen 31, a second filter screen 32, a support screen 33 and a third filter screen 34 which are covered from inside to outside. The first filter screen 31 is used for effectively filtering dust and inhalable particles which are spread in the air; the second filter 32 can absorb harmful chemical gases which cannot be filtered by the HEPA filter, such as formaldehyde, benzene and the like; the third filter 34 can intercept and filter larger suspended matters such as dust, hair, fine crumbs, floccules and the like at 360 degrees. Therefore, the cylindrical composite filter can greatly improve the purification efficiency of the filter.

Example 2

The utility model discloses the second aspect provides an air purification device, including foretell composite filter.

The above only is the embodiment of the present invention, not limiting the patent scope of the present invention, all the equivalent structures or equivalent processes that are used in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A composite filter, characterized by: the filter element comprises a filter element body, a first end cover and a second end cover;

2. The composite filter of claim 1, wherein: the first filter screen is a HEPA filter screen.

3. The composite filter of claim 2, wherein: the second filter screen is an active carbon filter screen.

4. A composite filter as defined in claim 3, wherein: the support net is a PET framework.

5. The composite filter of claim 4, wherein: the third filter screen is a coarse filter screen, and the coarse filter screen is made of a nylon net.

6. The composite filter of claim 5, wherein: the first end cover is circular ring-shaped, and the second end cover is disc-shaped.

7. The composite filter of claim 6, wherein: the first end cover is provided with a first groove, and the upper part of the filter element body is arranged in the first groove through a glue layer; the second end cover is provided with a second groove, and the lower part of the filter element body is arranged in the second groove through a glue layer.

8. The composite filter of claim 7, wherein: the glue layer is hot melt adhesive or AB glue.

9. An air purification device, characterized in that: comprising a composite filter according to any one of claims 1-8.