37results about How to "Solve the problem that easily causes secondary pollution" patented technology

The invention discloses a medical high-efficiency filter that can be sterilized twice, which includes an air intake assembly, a sterilizing assembly and a cooling assembly. In the cavity, the air inlet pipe is connected to the support shell, and the motor is connected to the blades. Turn on the motor to rotate the blades to inhale the air, which is pre-filtered by the filter; the sterilization component includes a connecting pipe, a sterilization chamber, a nozzle and a steam generating device. The sterilization chamber communicates with the support shell through the connecting pipe, the steam generating device communicates with the nozzle, the nozzle is located in the sterilization chamber, the steam generating device generates high-temperature steam, and the air passing through the connecting pipe is sterilized by high temperature; the cooling assembly includes a spiral pipe 1. The air outlet pipe and the cooling box, the spiral pipe is connected with the sterilization chamber, and there is a cooling box on the outside, in which there is coolant to cool the air, and finally the clean and sterile air is discharged from the air outlet pipe to avoid secondary pollution.

A electromagnetic shielding light window of a graphene mesh and double-layer metal mesh composite laminating structure belongs to the optical transparent-component electromagnetic shielding technology field. By using the electromagnetic shielding light window, a characteristic that a graphene mesh film expresses different light transmission and microwave shielding characteristics when possessing different mesh unit trepanning area ratios is used to organically combine a low reflection and partial absorbed microwave characteristic of a graphene mesh film and a high electromagnetic reflection characteristic of a high-light-transmission double-layer metal mesh so as to form a multilayer structure. The double-layer metal mesh is taken as a transparent reflecting layer and N graphene mesh films which are separated by a transparent medium are taken as transparent absorption layers. By using the structure, a radio frequency can radiate several times, pass through an absorption layer and is highly absorbed so that high shielding and low reflection characteristics are realized. Visible light penetrates the laminating structure for one time and high light transmittance is possessed. The graphene mesh films have periodical trepanning structures so that light transmittance performance is increased. In an existing transparent electromagnetic shielding method, high light transmission, low electromagnetic reflection and high electromagnetic shielding can not be realized simultaneously. By using the electromagnetic shielding light window, the above problem is solved.