Patent ID: 11931691
Assignee: nan
Field: Chemical engineering (Chemistry)
Classification: CPC B  A | IPC A  B

Claim 0:
1. A positive pressure and negative pressure maintenance system having a bacteria sterilizing function and a harmful material and radioactive material removing function and installed inside a building including a special-purpose vehicle, the system comprising:
a preprocessing unit configured to select and use at least one of a first preprocessing member installed in one branch pipe of three branch pipes connected to a main pipe so as to purify polluted air, a second preprocessing member installed in another branch pipe so as to sterilize bacteria and variant viruses in air, and a third preprocessing member installed in still another branch pipe so as to remove radioactive materials;
an air supply member installed at a distance from the preprocessing unit so as to supply air into a positive pressure chamber and a negative pressure chamber; a postprocessing unit installed at one side of an upper part of or one side of an upper part of a side surface of the negative pressure chamber so as to sterilize bacteria and floating viruses in polluted air and discharge a resulting air to an outside; and
a control panel configured to perform a control by supplying power to or cutting off power from the preprocessing unit, the air supply member, and the postprocessing unit by a control program, which is programmed and inputted in advance according to data on a pressure and a concentration of harmful materials measured in real time by a detection sensor installed in a space in which a positive pressure and a negative pressure are to be maintained.