Purification device scanning leak detection system

Abstract

The invention discloses a purification device scanning leak detection system, and relates to the field of gas purification. The system comprises a bent frame, a transmission assembly installed on a back surface of the bent frame, a scanning sampling piece connected to the transmission assembly, and a scanning display device connected with the scanning sampling piece through a test tube. The scanning sampling piece is a cavity structure with a triangular clamping cavity formed by sealing two side ends of two same triangular plates which are arranged in parallel; the triangular plates obliquelyintersect with a plane where a bent frame outlet is located; and vertical partition plates arranged in a parallelogram shape are arranged in the triangular clamping cavity, a side surface of an open end of the triangular clamping cavity serves as a sampling piece collecting opening, the sampling piece collecting opening is parallel to the plane where the bent frame outlet is located, and a sampling piece outlet is arranged in an intersection of the side surfaces of the two closed ends of the triangular clamping cavity. A gas purified by a filtering device can be uniformly, continuously and comprehensively collected and sampled, sampling accuracy is greatly improved, environment quality is accurately monitored in real time, universality is high, and an application range is wide.

Description

Technical field [0001] The invention relates to the technical field of biological safety exhaust air purification, and is an online scanning leak detection system used in conjunction with a biological safety exhaust air purification device. It is mainly used to test the aerosol filtration efficiency of the biological safety exhaust air purification device and determine the leakage point of the filter position. Background technique [0002] Due to the special environmental requirements of the pharmaceutical industry and biological virus laboratories, biological safety purification devices need to be installed to protect the surrounding environment. It is usually necessary to install a purification device scanning sampling system for scanning and sampling the purified gas at the back end of the purification device to monitor the environmental quality in real time. Some existing patents use multiple trapezoidal sampling plates connected end to end, and each sampling plate is provid...

AI Technical Summary

Problems solved by technology

Some existing patents use multiple trapezoidal sampling plates connected end to end, and each sampling plate has a horn-shaped sampling cavity, which has discontinuous and uneven sampling problems, which leads to certain errors in the test results

The traditional scanning sampling system also uses chain transmission for scanning and sampling, but the use of chain transmission for scanning and sampling has the disadvantages of complex mechanism, large space requirement and high cost

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