CN212219504U

CN212219504U - Prevent haze screen window based on multi-layer and multi-scale plant fiber

Info

Publication number: CN212219504U
Application number: CN202020530934.7U
Authority: CN
Inventors: 俞书宏; 管庆方; 凌张弛; 韩子盟; 杨怀斌; 杨昆鹏; 尹崇翰
Original assignee: University of Science and Technology of China USTC
Current assignee: University of Science and Technology of China USTC
Priority date: 2020-04-10
Filing date: 2020-04-10
Publication date: 2020-12-25
Anticipated expiration: 2030-04-10

Abstract

The utility model relates to a screen window field to a prevent haze screen window based on multilayer multiscale plant fiber is disclosed, it includes screen window metal supporting layer and air filter layer two parts and constitutes, and air filter layer comprises three-layer plant fiber filter layer, including 4-100 nanometer plant nanofiber layer, 1-10 micron plant micron fibrous layer and 10-100 micron plant micron fibrous layer. The utility model provides a filter layer is because realized reducing gradually from inside to outside layer aperture, and filter fineness increases gradually, realizes filtering layer upon layer from large granule to tiny particle, has improved filtering quality, and the nanoscale granule in consequently can effective filtered air has the excellent haze performance of preventing, has the air permeability height simultaneously, and the light transmissivity is good, characteristics such as long service life.

Description

Prevent haze screen window based on multi-layer and multi-scale plant fiber

Technical Field

The utility model relates to a screen window field especially relates to a prevent haze screen window based on multi-layer multi-scale plant fiber

Background

With the increasingly high industrialization level of cities in China, more and more cities are affected by haze. The emission of industrial waste gas and automobile exhaust causes a large amount of particles such as dust, sulfuric acid, nitric acid, organic hydrocarbon and the like to be suspended in the air, and the visual path barrier caused by an aerosol system consisting of non-aqueous components is called haze. The haze contains hundreds of atmospheric chemical particulate matters which can invade the respiratory tract and the lung and the lobe of the human body along with air when people take no precautions, thereby causing diseases such as respiratory system diseases, cardiovascular system diseases and the like and causing great harm to the health of the human body.

In view of the great harm of haze to the human body, the problem of haze treatment is not easy to solve. Urban people are in indoor environment for a long time, and indoor air quality is closely related to human health. The window is used as a main way for indoor and outdoor air exchange, and the screen window becomes a main method for isolating indoor and outdoor pollutants. At present, the screen window on the market obtains better ventilation performance due to larger aperture, but can not effectively isolate substances such as dust and other harmful particles in outdoor air, so that the indoor air quality can be worried about.

SUMMERY OF THE UTILITY MODEL

The utility model discloses mainly filter to present screen window and prevent not enough on the haze performance, provide a novel screen window cloth, it can be when having higher air permeability, can effectively completely cut off various harmful particles in the outdoor air, is showing and promotes the indoor air quality.

In order to solve the technical problem, the utility model discloses the scheme of taking is: a haze-proof screen window based on multilayer multi-scale plant fibers comprises an air filtering layer and a base metal layer. The air filter layer consists of a 4-100nm plant nano fiber layer, a 1-10 mu m plant micro fiber layer and a 10-100 mu m plant micro fiber layer, and is adhered to the substrate metal layer. Wherein the filter layer has excellent filtering and haze-preventing properties due to the multi-layer multi-scale plant fibers.

Preferably, the plant micro-fiber layer with the diameter of 1-10 μm is composed of micro-cellulose with the diameter of 1-10 μm, the pore size is distributed in the range of 0.5-20 μm, the thickness is 1-2mm, and particles with medium diameter in the air can be effectively hindered and adsorbed.

Preferably, the plant micro-fiber layer with the diameter of 10-100 μm is composed of micro-cellulose with the diameter of 10-100 μm, the pore size is distributed in the range of 50-500 μm, the thickness is 1-5mm, and the plant micro-fiber layer can effectively block and adsorb large-size particles in air and has good air permeability.

Preferably, the nano-cellulose layer is composed of nano-cellulose with the diameter of 4-100nm, the pore size of a nano-cellulose network formed by interlacing the nano-cellulose layer is distributed in the range of 50-300nm, the thickness of the nano-cellulose network is 1-2mm, and harmful particles with smaller particle sizes in the air can be further isolated.

Preferably, the base metal layer is a conventional screen metal substrate, such as stainless steel, which has excellent physical properties and can be used for a long time.

The utility model discloses an in preventing haze screen window based on multilayer multiscale plant fiber, the air filter layer includes by last 10-100 mu m plant micron fibrous layer, 1-10 mu m plant micron fibrous layer and 4-100nm plant nanofiber layer in proper order down, and layer aperture reduces gradually, and filter fineness increases gradually, realizes filtering layer upon layer from large granule to tiny granule, has improved filtering quality.

Compare in the tradition and prevent haze screen window, the utility model discloses beneficial effect who has: the combination of the plant nanofiber layer and the plant microfiber layers with two scales can realize the maximum adsorption and filtration of dust and harmful particles in the air, and simultaneously ensure better air permeability. Simultaneously the utility model discloses a nano cellulose and micron cellulose have natural green, nontoxic harmless nature, can apply to the house life safely extensively.

Drawings

FIG. 1 is a schematic cross-sectional structure diagram of an anti-haze screen window based on multilayer multi-scale plant fibers, wherein 1, a screen window base layer; 2. an air filtration layer; 3. 4-100nm plant nanofiber layer; 4. 1-10 μm plant micrometer fiber layer; 5. 10-100 μm plant micrometer fiber layer.

Detailed Description

The invention will be further described with reference to the accompanying drawings and specific embodiments:

as shown in figure 1, the haze-proof screen window based on the multilayer multi-scale plant fibers comprises an air filter layer 2 and a screen window substrate layer 1, wherein the air filter layer 2 comprises a 4-100nm plant nanofiber layer 3, a 1-10 μm plant microfiber layer 4 and a 10-100 μm plant microfiber layer 5. The screen window substrate layer is made of stainless steel. The thickness of the plant nano-fiber layer formed by interlacing nano-cellulose with the diameter of 4-100nm is 1-2mm, the plant nano-fiber layer is adhered to the base metal, and the plant nano-fiber layer is tightly combined with the plant micro-fiber layer with the diameter of 1-10 mu m and the plant micro-fiber layer with the diameter of 10-100 mu m in sequence. The plant micron fiber layer with the diameter of 1-10 mu m is distributed at about 0.5-20 mu m and the thickness of 1-2mm, and the plant micron fiber layer with the diameter of 10-100 mu m is distributed at 50-500 mu m and the thickness of 1-5 mm. Furthermore, it is worth pointing out that the plant microfiber of the present invention is not particularly limited to a specific plant.

The utility model relates to a screen window has excellent filtration performance, and through the filter layer of the multiple yardstick of multilayer, can effective filtration adsorb most harmful particulate matter in the air, when guaranteeing good ventilative, effectively improve the air quality.

The above is only described with respect to the embodiments of the present invention, which is not right, the present invention is limited, and any right, the present invention discloses the scheme after simple transformation all belongs to the protection scope of the present invention.

Claims

1. The utility model provides a prevent haze screen window based on multi-layer multi-scale plant fiber, includes screen window stratum basale (1) and air filter layer (2), its characterized in that: the air filter layer (2) comprises a 4-100nm plant nano fiber layer (3), a 1-10 mu m plant micro fiber layer (4) and a 10-100 mu m plant micro fiber layer (5) which are sequentially stacked on the screen window substrate layer (1), wherein the 4-100nm plant nano-fiber layer (3) has a network structure formed by interlacing plant nano-celluloses with the diameters of 4-100nm and the pore diameters of which are distributed in the range of 50-300nm, the 1-10 mu m plant micron fiber layer (4) has a network structure formed by interlacing micron cellulose with the diameter of 1-10 mu m and the pore size distribution of which is 0.5-20 mu m, and the plant micro-fiber layer (5) with the diameter of 10-100 mu m has a network structure formed by interlacing micro-cellulose with the diameter of 10-100 mu m and the pore size of which is distributed in 50-500 mu m.

2. The haze-proof screen window based on the multilayer multi-scale plant fibers as claimed in claim 1, wherein: the thickness of the 4-100nm plant nanofiber layer (3) is 1-2 mm.

3. The haze-proof screen window based on the multilayer multi-scale plant fibers as claimed in claim 1, wherein: the thickness of the plant micron fiber layer (4) with the thickness of 1-10 mu m is 1-2 mm.

4. The haze-proof screen window based on the multilayer multi-scale plant fibers as claimed in claim 1, wherein: the thickness of the plant micron fiber layer (5) with the thickness of 10-100 mu m is 1-5 mm.