LAMINAR FLOW CABINET Russian patent published in 2022 - IPC B08B15/02 B01L1/04 

FIELD: laboratory equipment.

SUBSTANCE: invention relates to means for protecting the product under study, for example, for use in the fields of science and technology requiring high purity and sterile conditions, for example, for microelectronics, transport, healthcare, in particular for the arrangement of a sterile box or air purification at infectious diseases departments, veterinary medicine, aspiration systems of buildings and structures, agriculture or microbiology, in particular when microcloning plants. The essence of the invention lies in the fact that a laminar flow cabinet, the body of which is made in the form of a closed volumetric figure with the formation of an internal working chamber (2) and containing a table top (3), a front translucent panel (4) and side covers (5, 6), has an air duct (8) inside the housing with filters located in it, air disinfection devices, adjustable with flaps, as well as a suction fan (17) installed at the outlet of the air duct (8), moreover, the air duct is connected to the environment by means of an output channel (24) and at least one input channel (9), and the front panel (4) is equipped with a hinged lid (7) for the possibility of carrying out work inside the working chamber (2). An inlet adjustable flap (10) is installed in the inlet channel (9) of the duct (8), the duct (8) is connected to the working chamber (2) by means of a suction channel (11) with an additional adjustable flap (12) installed in it, an ozone generator (14) is installed at the outlet of the suction channel (11), the duct (8) is connected to the working chamber (2) by means of an additional suction channel (15) with a grid (16) installed in it, having a coating reflecting ultraviolet radiation on its surface from the side of the working chamber (2). radiation. An ultraviolet bactericidal emitter (18), a coarse filter (19), an ultraviolet bactericidal emitter (20) are installed sequentially in the air duct (8) in front of the fan (17), a sterilizer filter (21) is installed at the fan outlet (17). At the outlet of the sterilizer filter (21), a receiver (22) of sterile air is formed, communicated with the working chamber (2) by means of a pressure equalizing filter (23), as well as with the environment by means of an output channel (24) with an output adjustable flap (25) installed in it. An ultraviolet bactericidal emitter (26) is installed in the working chamber (2) with the possibility of periodic sterilization of its internal volume with the hinged lid closed (7), an ultraviolet bactericidal emitter (28) is installed in the confuser (27) at the outlet of the fan (17) with the possibility of continuous irradiation of the input surface of the sterilizer filter (21), and an ultraviolet bactericidal emitter (29) is installed in the receiver (22) with the possibility of continuous irradiation of the output surface of the sterilizer filter (21).

EFFECT: increase in the degree of protection of both the internal working chamber of the cabinet from the penetration of undesirable products into it, and the external environment.

10 cl, 2 dwg