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Filter screen, preparation method of filter screen and filter device using the filter screen

A filter device and filter screen technology, applied in the field of air purification, can solve the problems that the air cannot carry atomized water, the humidification component is bulky, and the thickness is not easy to grasp, etc., and achieves improved filtration efficiency, high specific surface area, and high porosity. Effect

Active Publication Date: 2022-06-24
NINGBO FOTILE KITCHEN WARE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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 filter screen and filter device using the filter screen
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  • Filter screen, preparation method of filter screen and filter device using the filter screen

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Experimental program
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Effect test

Embodiment 1

[0054] like Figures 1 to 10 As shown, the filter device of this preferred embodiment includes a humidification component 1 , a negative ion generating component 2 , a dehumidification component 3 and a filter screen 4 arranged in sequence along the airflow direction.

[0055] like figure 1 As shown, there is a distance of 5cm between the humidifying component 1 and the negative ion generating component 2, such as Figures 5 to 9 As shown, the humidifying assembly 1 includes a frame body 11, a central axis 12, an atomizing mechanism 13 and an extension arm 14. The frame body 11 is annular, and the frame body 11 supplies airflow to pass through the area enclosed by it, and the interior 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 enclosed by the frame body 11 , and the interior of the central shaft 12 is hollow to form a ac...

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 the filter screen (4) comprises the following steps:

[0075](1) Add 15g of chitosan to 83g of organic solvent dimethylacetamide (DMAC), then add 2g of lithium chloride, stir evenly at 60°C, prepare a spinning solution with a solid content of 17wt%, spin The viscosity of the liquid is 1360mPa s;

[0076] (2) After cooling the spinning solution for 12 hours, put it into a needle tube, perform electrospinning on the spinning solution, and use the non-woven fabric as the collection base to obtain the nanofiber layer stacked on the non-woven fabric, the non-woven fabric and the nano-fiber layer. The fiber layers together form the filter screen (4); the electrospinning method is as follows: adjusting the spinning parameter to be 14KV, the distance between the electrode wire and the collecting bas...

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 the 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 dope, the viscosity of the spinning dope is 1890mPa·s;

[0082] (2) After cooling the spinning solution for 12 hours, put it into a needle tube, perform electrospinning on the spinning solution, and use the non-woven fabric as the collection base to obtain the nanofiber layer stacked on the non-woven fabric, the non-woven fabric and the nano-fiber layer. The fiber layers together form the filter screen (4); the electrospinning method is as follows: the spinning parameter is 21KV, the distance between the ele...

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Abstract

The invention relates to a filter screen, a preparation method of the filter screen and a filter device using the filter screen, wherein the filter screen includes a collection base cloth and a nanofiber layer using the collection base cloth as a base, and the nanofiber layer is obtained by electrospinning Positively charged nanofibrous structures prepared by the silk method. The filter screen of the present invention adopts a nanofiber structure, has the advantages of high specific surface area and high porosity, and can significantly 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 applying 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 attention. The fine particles suspended in the smog can enter the lungs and cardiovascular of the human body through the respiratory system, resulting in the reduction of human immunity and lung cancer and other problems. Therefore, air purifiers are used more and more. [0003] For example, the Chinese invention patent application with the patent number CN201811365806.5 (publication number CN111197823A) discloses the "negative ion generating assembly and the filtering device using the negative ion generating device", which includes the negative ion generator, and also includes a negative io...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D39/14B01D46/121B01D46/10B01D53/32B03C3/017B01D53/26B32B9/00B32B9/04B32B5/02
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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