阅读说明：本技术 一种加装于空气净化器筒式滤芯的u型3d滤套 (Install U type 3D who strains cover in air purifier cylinder filter core additional ) 是由 刘俊杰 李寒羽 于 2019-10-04 设计创作，主要内容包括：本发明公开了一种加装于空气净化器筒式滤芯的U型3D滤套,利用现有三维复合滤料制作成U型滤套应用于现有空气净化器筒式过滤器滤芯外部或内部(根据气流来流方向而定)。携带颗粒物的气流以一定倾斜角度进入U型3D滤套,颗粒物受力可分解成与滤料垂直和水平两方向的分力,三维复合滤料中疏孔支撑层过滤了部分大颗粒,竖直纤维层允许气流夹带颗粒物可以同时进行竖直和水平运动,有效降低了阻力并延长了颗粒在滤套中的运动时长,大颗粒更易被纤维拦截,使得小颗粒物至密孔支撑层时运动速度降低,扩散作用增强,从而增大了容尘几率。(The invention discloses a U-shaped 3D filter sleeve additionally arranged on a cylindrical filter element of an air purifier, which is applied to the outside or the inside (determined according to the airflow direction) of the cylindrical filter element of the air purifier by utilizing a U-shaped filter sleeve manufactured by utilizing the conventional three-dimensional composite filter material. The air current that carries the particulate matter gets into U type 3D filter sleeve with certain inclination, the particulate matter atress resolvable becomes with the perpendicular and horizontal two-directional component of filter material, dredge the hole supporting layer in the three-dimensional composite filter material and filtered partial large granule, vertical fibrous layer allows the air current to smuggle the particulate matter and can carry out vertical and horizontal motion simultaneously secretly, it is long when effectively having reduced the resistance and having prolonged the motion of granule in the filter sleeve, the large granule is changeed by the fibre interception, make the small granules reduce to the speed of movement when dense hole supporting layer, the diffusion action reinforcing, thereby dust holding probability has been increased.)

1. A U-shaped 3D filter sleeve additionally installed on a cylindrical filter element of an air purifier is characterized by comprising a three-dimensional filter material and a sealing layer; the three-dimensional filter material can effectively filter large particles, and the sealing layer is used for supporting the three-dimensional filter material to form a U-shaped 3D filter sleeve which can be simply and conveniently sleeved on a cylindrical filter element of the air purifier.

2. The U-shaped 3D filter sleeve additionally arranged on a cylindrical filter element of an air purifier as claimed in claim 1, wherein the three-dimensional filter material is preferably a washable three-dimensional composite filter material comprising a sparse pore filter support layer, a vertical fiber layer and a dense pore filter support layer.

Technical Field

The invention relates to the field of improvement of filtering performance of air purifiers and filters, in particular to a U-shaped 3D filtering sleeve additionally arranged on a cylindrical filter element of an air purifier.

Background

People move indoors for more than 80% of the time, the problem that whether indoor air is clean enters the visual field of people is solved, the air purifier is gradually pursued by people, and the important factor for determining the effect of the air purifier is the filtering performance of a filter arranged in the air purifier. The filters used in conventional air purifiers are basically high efficiency filters (HEPA), and a HEPA filter is evaluated for three main aspects: low resistance, high efficiency and high dust holding capacity. HEPA filters generally have plate, cartridge, and close-pleated structures, in which the cartridge filter is made of glass fiber, chemical fiber, or other materials, folded into a pleated structure with a certain angle, and then bent and sealed into a ring. Aiming at a cylindrical HEPA filter, a thickening filter and a middle-effect filter are adopted by some manufacturers as pre-filtering to protect the cylindrical HEPA filter, but when airflow obliquely enters the added thickening filter and the middle-effect filter at a certain angle, only a vertical component can pass through a filter material, kinetic energy of a horizontal component is close to zero due to the fact that the filter material blocks rapid attenuation, dynamic pressure is converted into static pressure, inlet resistance is increased, and meanwhile cost and installation volume are increased. Because the filter that air purifier collocation was generally comparatively fixed, can not change easily, how to improve on air purifier has HEPA filter so, make it under the condition that increases less resistance, promote its dust holding capacity greatly, prolong former filter core life, reduce the replacement cost is the problem that needs to solve at present urgently.

Disclosure of Invention

The invention aims to solve the problem of dust holding capacity of a cylindrical HEPA filter of an air purifier, and provides a U-shaped 3D filter sleeve.

In order to solve the technical problems in the prior art, the invention provides the following technical scheme: a U-shaped 3D filter sleeve additionally installed on a cylindrical filter element of an air purifier comprises a three-dimensional filter material and a sealing layer; the three-dimensional filter material can effectively filter large particles, and the dust holding capacity of the three-dimensional filter material is increased under the condition of less increase of the volume and the resistance of the original filter element; the sealing layer is used for supporting the three-dimensional filter material to form a U-shaped 3D filter sleeve, and can be simply and conveniently applied to the outside or the inside (according to the incoming flow direction of airflow) of the cylindrical filter element of the existing air purifier.

The three-dimensional filter material preferably adopts Chinese utility model patent CN 206688373U and the washable three-dimensional composite filter material described in the invention patent CN 107008057A applied at the same time, and comprises a sparse pore filter support layer, a vertical fiber layer and a dense pore filter support layer.

The air current of technical principle for carrying the particulate matter gets into U type 3D filter sleeve with certain inclination, the particulate matter atress resolvable becomes the component perpendicular with the filter material and two directions of level, dredge the hole supporting layer in the three-dimensional composite filter material and filtered partial large granule, vertical fibrous layer allows the air current to smuggle the particulate matter and can carry out vertical and horizontal motion simultaneously secretly, it is long when effectively having reduced the resistance and having prolonged the motion of granule in the filter sleeve, the large granule is changeed and is intercepted by the fibre, make the small granules reduce to the motion speed when dense hole supporting layer, the diffusion is strengthened, thereby dust holding probability has been increased.

Compared with the prior art, the invention has the beneficial effects that:

(1) the invention allows the particles to move horizontally and vertically in the U-shaped 3D filter sleeve, reduces the local resistance of the inlet, prolongs the movement time of the particles, enhances the interception function and the diffusion function, greatly improves the dust holding capacity, prolongs the service life of the original filter element and the air purifier, and reduces the replacement frequency and the replacement cost.

(2) The invention can be simply and lightly sleeved outside or inside the cylindrical filter (specifically according to the incoming flow direction of the airflow), increases the dust holding capacity, simultaneously improves the filtering efficiency by a small degree, and has small influence on the installation and cost investment of the original product.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a cartridge HEPA filter configuration;

FIG. 3 is a schematic diagram of the outward flow and the inward flow and the outward flow of the dust containing air flow with a composite structure: a-U type 3D filter sleeve and cylindrical HEPA composite structure, b-section dust holding schematic diagram;

FIG. 4 is a schematic diagram of the air flow inside and outside of the composite structure for containing dust: a-U type 3D filter sleeve + cylinder HEPA composite structure, b-section dust holding schematic diagram.

Reference numerals:

the filter material comprises 1-a three-dimensional filter material, 2-a sparse hole filter support layer, 3-a vertical fiber layer, 4-a dense hole filter support layer, 5-a sealing layer, 6-pleat-structured high-efficiency filter paper and 7-a HEPA layer.

Detailed Description

The technical solutions of the present invention are further described in detail with reference to the accompanying drawings and specific embodiments, which are only illustrative of the present invention and are not intended to limit the present invention.

FIG. 1 is a schematic view of the structure of the U-shaped 3D filter sleeve installed on a cylindrical filter element of an air purifier, which comprises a three-dimensional filter material and a sealing layer; the three-dimensional filter material can effectively filter large particles, and the dust holding capacity of the three-dimensional filter material is increased under the condition of less increase of the volume and the resistance of the original filter element; the sealing layer is used for supporting a three-dimensional filter material, so that the three-dimensional filter material becomes a U-shaped 3D filter sleeve, can be simply and conveniently applied to the outside or the inside of a filter element of a cylindrical filter of the existing air purifier, and is specifically determined according to the incoming flow direction of air flow: if the polluted air flow enters and exits from the outside of the cylindrical filter element, the U-shaped 3D filter sleeve is required to cover the outside of the filter element; if the polluted air flow enters or exits from the cylindrical filter element.

The three-dimensional filter material preferably adopts Chinese utility model patent CN 206688373U and the washable three-dimensional composite filter material described in the invention patent CN 107008057A applied at the same time, and comprises a sparse pore filter support layer, a vertical fiber layer and a dense pore filter support layer.

The air current that carries the particulate matter gets into U type 3D filter sleeve with certain inclination, the particulate matter atress resolvable becomes with the perpendicular and horizontal two-directional component of filter material, dredge the hole supporting layer in the three-dimensional composite filter material and filtered partial large granule, vertical fibrous layer allows the air current to smuggle the particulate matter and can carry out vertical and horizontal motion simultaneously secretly, it is long when effectively having reduced the resistance and having prolonged the motion of granule in the filter sleeve, the large granule is changeed by the fibre interception, make the small granules reduce to the speed of movement when dense hole supporting layer, the diffusion action reinforcing, thereby dust holding probability has been increased.

It should be understood that the embodiments and examples discussed herein are illustrative only and that modifications or changes in the air cleaner filter cartridge may be made by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.