Biological safety cabinet for monitoring filter leakage in real time

Abstract

The invention discloses a biological safety cabinet for monitoring filter leakage in real time. The biological safety cabinet comprises a cabinet body, an air blower, a negative pressure channel and a detecting structure, wherein an air outlet is formed in the top of the cabinet body; the air blower is arranged on the inner upper part of the cabinet body; the negative pressure channel is arranged at the outer side of the rear part of the cabinet body; one end of the negative pressure channel is arranged below the cabinet body, and the other end of the negative pressure channel extends to the top end of the cabinet body along the rear part of the cabinet body; the detecting structure is arranged on a position, positioned on the upper part of a cabinet body working region, in the cabinet body. According to the biological safety cabinet for monitoring filter leakage in real time disclosed by the invention, the detecting structure is arranged in the working region, and a probe for detecting cleanness is fixed on a movable track in the detecting structure and can move in the track, so that in the practical use of a workbench, the cleanness detecting probe scans along the track row by row to realize leakage detection; when leakage exists, a signal is output in real time, so that the equipment can timely emit a sound-light alarm signal to prompt an operator to timely check and maintain a filter.

Description

technical field [0001] The invention mainly relates to the field of biological safety purification, in particular to a biological safety cabinet for real-time monitoring of filter leakage. Background technique [0002] Aerosols may be generated when liquids or semifluids are manipulated in the laboratory, such as by shaking, pouring, stirring, or dripping a liquid onto a solid surface or into another liquid. Aerosols can be generated by streaking agar plates, pipetting cell culture flasks, centrifuging infected fluids, and performing animal manipulations. For these aerosols with a diameter of less than 5 microns and tiny liquids with a diameter of 5 μm to 100 μm that cannot be seen by the naked eye, laboratory workers are usually unaware of their existence and may inhale or cross-contaminate other materials on the work surface. [0003] Biological safety cabinets are used to protect the operator, the laboratory environment and experimental materials from exposure to the abo...

AI Technical Summary

Problems solved by technology

Traditional biosafety cabinets can only be tested at the initial installation, and the integrity of the filter cannot be guaranteed in the subsequent use process

If a leak occurs, a safe and clean environment cannot be provided and continued use presents a safety risk

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