Air shower and control method

Abstract

The invention discloses an air shower fan and a control method thereof. According to the technical scheme, an air shower chamber comprises an air inlet, an air outlet, the air shower fan, an efficient filter and a programmable logic controller (PLC) control circuit. The air shower fan and the efficient filter are connected to an air channel between the air inlet and the air outlet in series. The PLC control circuit is electrically connected with the air shower fan. The air shower chamber further comprises a first pressure sensor, a second pressure sensor, an analog quantity input and output module and an alarm module. The first pressure sensor and the second pressure sensor are installed in front of and behind filter paper of the efficient filter respectively and electrically connected with the input end of the analog quantity input and output module. The output end of the analog quantity input and output module is electrically connected with the PLC control circuit and the alarm module.

Description

technical field [0001] The invention relates to the technical field of dust removal in workshops, in particular to an air shower and a control method. Background technique [0002] At present, in the processing and manufacturing industries of electronics, experimental instruments, food processing, beverages, medicine, and precision instruments, the air cleanliness in production or test sites is generally required to be relatively high. For example, precision instrument manufacturing companies have high technical requirements for product accuracy and quality, so the process needs to be carried out in a highly dust-free production workshop. In the process of production or research and development, due to the high mobility of personnel, personnel entering the clean room from the outside will carry dust. If the dust is not removed, it will easily have a negative impact on the production process and research and development experiments. In food processing enterprises, bacteria T...

AI Technical Summary

Problems solved by technology

However, since the flow of people in the production workshop is not quantitative, when the flow of people is small, the method of regular replacement can ensure the dust removal effect of the air shower; but when the flow of people is large, the method of regular replacement of filter paper cannot meet the needs of the process workshop. Or the dust removal requirements of the laboratory; it can be seen from the above situation; the dust removal effect of the existing air shower room lacks monitoring

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