Patent RU-2746875-C1 (RU)
Title: Barrier disinfection system and method of barrier disinfection of objects contaminated with pathogens by creating downward or upward flow of gas-air mixture
Inventor: Bogatishchev Aleksandr Ivanovich
IPC: F24F9/00
Filed: 2021-01-19
Granted: 2021-04-21
Abstract: FIELD: medical technology. 
     SUBSTANCE: group of inventions relates to medical technology, namely to a system for barrier disinfection of objects contaminated with pathogens by creating a downward or upward flow of a gas-air mixture and a method for barrier disinfection of objects contaminated with pathogens by creating a downward or upward flow of a gas-air mixture. The system includes a barrier disinfection device containing a case with a diffuser designed to form a vortex-free flow of a gas-air mixture, and a control unit connected to a plasma emitter designed to generate ozone or cold plasma from a plasma-forming agent, and an air fan designed to form an air flow of the required power located in the specified case. The system has at least one door position sensor and/or a volumetric presence sensor connected to the barrier disinfection device, which can be activated by a signal sent to the control unit of the barrier disinfection device, and a subsystem for notifying about the process of ozone generation and ozone presence in the supplied gas-air mixture. The system is made with the possibility of its installation in the buffer zone of buildings, which is an input group with at least double sheets of sliding or swing doors, or rotary doors to form the specified device for barrier disinfection of the gas-air mixture flow to objects moving through the created flow. The system contains a sensor of output monitoring of the ozone concentration in the gas-air mixture, installed in the diffuser of the barrier disinfection device, and a sensor of the ozone concentration in the buffer zone, located within the boundaries of the input group of the buffer zone. The sensors are connected to the control unit of the barrier disinfection device. The sensors are designed to continuously measure the ozone concentration and generate information signals for the control unit of the barrier disinfection device, which is designed to compare the received signals with the threshold value. If the ozone concentration level is exceeded, the control unit sends a control signal to the plasma emitter about the temporary termination of ozone generation or cold plasma. The method includes the stages at which the system is provided: when the object opens the door of the buffer zone, a signal is sent to the control unit of the device from the door position sensor or volume sensor to turn on; the control unit of the disinfection device sends a signal to the notification subsystem about the ozone generation process. The method includes steps in which the plasma emitter generates ozone or cold plasma. The method includes steps in which the control unit of the disinfection device sends a signal to the notification subsystem about the presence of ozone in the supplied gas-air mixture. The method includes steps in which a downward or upward flow of a gas-air mixture is formed, which affects objects moving through the created flow. The method includes steps in which continuous measurement of the ozone concentration is carried out using a sensor of output monitoring of the ozone concentration in the gas-air mixture, installed in the diffuser of the device for barrier disinfection and the ozone concentration in the buffer zone, and using a sensor of the ozone concentration in the buffer zone located within the boundaries of the input group of the buffer zone. The signals from the sensors are transmitted to the control unit of the barrier disinfection device. The method includes steps in which, when the ozone concentration level is exceeded, the generation of ozone or cold plasma is temporarily stopped. 
     EFFECT: expansion of functionality while simplifying the design. 
     10 cl, 4 dwg