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
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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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