Filter screen, preparation method of the filter screen and filtering device applying the filter screen

A filter device and filter screen technology, which is applied in the field of air purification, can solve the problems that the air cannot carry atomized water, the volume of the humidification component is large, and the thickness is not easy to control, so as to improve the filtration efficiency, high specific surface area, and high porosity. Effect

Active Publication Date: 2021-06-11
NINGBO FOTILE KITCHEN WARE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, the filter screen of this patent includes a PET support body, a PP melt-blown layer, and a conductive coating formed by spraying conductive materials on the PET support body. The coating is sprayed on the PET support body, the thickness of the spraying is not easy to control, and the pore size of this kind of filter is relatively large, and the filtering effect needs to be further improved
[0005] The humidification component of this patent is equipped with multiple nozzles to increase the probability of atomized water on the air passing through the inner frame as much as possible, but if there are too many nozzles, the structure will be complicated, and the outer frame and inner frame will be surrounded by The settings in the area, ultrasonic atomization mechanism, atomization mixing chamber, fan, etc., cause the overall volume of the humidification component to be large; and the atomized water is guided by the fan, there may be dead angles, resulting in the air in some corners cannot be carried Atomized water

Method used

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  • Filter screen, preparation method of the filter screen and filtering device applying the filter screen
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  • Filter screen, preparation method of the filter screen and filtering device applying the filter screen

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Embodiment 1

[0054] Such as Figure 1-10 As shown, the filter device of this preferred embodiment includes a humidifying component 1 , an anion generating component 2 , a dehumidifying component 3 and a filter screen 4 arranged in sequence along the air flow direction.

[0055] Such as figure 1 As shown, there is a distance of 5 cm between the humidifying component 1 and the negative ion generating component 2, such as Figure 5-9 As shown, the humidifying assembly 1 includes a frame body 11, a central shaft 12, an atomizing mechanism 13, and an extension arm 14. The frame body 11 is annular, and the frame body 11 allows airflow to pass through the area surrounded by it. The inside of the frame body 11 is hollow. A circle of chambers 111 is formed inside the frame body 11 .

[0056] The axis of the central shaft 12 extends vertically. The central shaft 12 is located in the area surrounded by the frame body 11 . The interior of the central shaft 12 is hollow to form an accommodating cavit...

Embodiment 2

[0073] The difference between embodiment 2 and embodiment 1 is that the preparation method of filter screen (4) is different:

[0074] In the present embodiment, the preparation method of filter screen (4) comprises the following steps:

[0075](1) 15g chitosan is added in 83g organic solvent dimethylacetamide (DMAC), then add 2g lithium chloride, stir evenly at 60 ℃, be mixed with the spinning solution of solid content 17wt% concentration, spinning The viscosity of the liquid is 1360mPa·s;

[0076] (2) After cooling the spinning solution for 12 hours, put it into the needle tube, carry out electrospinning on the spinning solution, use the non-woven fabric as the collection base fabric, and obtain the nanofiber layer accumulated on the non-woven fabric, the non-woven fabric and the nanofiber The fiber layers jointly constitute the filter screen (4); the electrospinning method is as follows: adjusting the spinning parameters to 14KV, the distance between the electrode wire and...

Embodiment 3

[0079] The difference between embodiment 3 and embodiment 1 is that the preparation method of filter screen (4) is different:

[0080] In the present embodiment, the preparation method of filter screen (4) comprises the following steps:

[0081] (1) Add 9g of chitin, 11g of chitosan and 2g of polyvinyl alcohol into 76mL of trifluoroacetic acid (TFA), then add 2g of lithium chloride, stir evenly at 60°C, and prepare a spinning solution with a solid content of 24%. Silk solution, the viscosity of spinning solution is 1890mPa·s;

[0082] (2) After cooling the spinning solution for 12 hours, put it into the needle tube, carry out electrospinning on the spinning solution, use the non-woven fabric as the collection base fabric, and obtain the nanofiber layer accumulated on the non-woven fabric, the non-woven fabric and the nanofiber The fiber layers jointly constitute the filter screen (4); the electrospinning method is as follows: the spinning parameter is 21KV, the distance betwe...

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Abstract

The invention relates to a filter screen, a preparation method of the filter screen and a filtering device applying the filter screen. The filter screen comprises a collection base cloth and a nanofiber layer taking the collection base cloth as a substrate, and the nanofiber layer is a nanofiber structure which is prepared by an electrostatic spinning method and has positive charges. The filter screen provided by the invention adopts a nanofiber structure, has the advantages of high specific surface area and high porosity, and can obviously enhance the interception effect on tiny particles.

Description

technical field [0001] The invention belongs to the technical field of air purification, and in particular relates to a filter screen, a preparation method of the filter screen and a filter device using the filter screen. Background technique [0002] In recent years, with the rapid economic development, the problem of smog has become increasingly prominent and has become the focus of people's attention. The fine particles suspended in the smog can enter the lungs and cardiovascular of the human body through the respiratory system, leading to problems such as reduced immunity and lung cancer. Therefore, air purifiers are used more and more. [0003] Such as the patent No. CN201811365806.5 (publication number is CN111197823A) Chinese invention patent application disclosed "anion generating component and filter device with the application of the anion generating device", including anion generator, also includes for the air passing through A humidifying component for humidifyi...

Claims

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Application Information

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IPC IPC(8): B01D39/14B01D46/00B01D46/12B01D46/10B01D53/32B01D50/00B01D53/26B32B9/00B32B9/04B32B5/02
CPCB01D39/14B01D46/12B01D46/10B01D53/32B01D53/323B01D50/00B01D53/26B32B5/02B32B5/022B32B5/26B01D2239/10B01D46/62
Inventor 俞辉高婷婷焦顺郑军妹
Owner NINGBO FOTILE KITCHEN WARE CO LTD
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