Intelligent ventilation radon discharge system applied to workplace

Abstract

The invention discloses an intelligent ventilation radon discharge system applied to a workplace, and particularly relates to radon concentration detection, an air demand algorithm and ventilation system control. The intelligent ventilation radon discharge system comprises a PLC control cabinet, a touch display screen, a frequency converter and an air demand calculation model, the input end of thefrequency converter is connected with the output end of the PLC control cabinet, the PLC control cabinet is further connected with a first control air valve, a second control air valve, a continuousemanometer and an alarm, the output end of the continuous emanometer is connected with the input end of the PLC control cabinet, and the input end of the alarm is connected with the output end of thePLC control cabinet. According to the intelligent ventilation radon discharge system, radon concentration change condition of the workplace can be monitored in real time, the needed ventilation amountis given through the air demand amount algorithm on the premise that energy conservation and radon concentration standard reaching are achieved, then the working states of an air feeder, an exhaust fan, a ventilation cabinet and a side suction type exhaust hood are regulated and controlled, continuous 24-hour ventilation of the workplace is achieved, high radon concentration gathering in the space is avoided, and meanwhile the normal ventilation requirement after personnel enter the space is guaranteed.

Description

technical field [0001] The invention belongs to the technical field of radon concentration detection and ventilation, and in particular relates to an intelligent ventilation radon exhaust system applied to workplaces. Background technique [0002] In buildings and underground engineering, especially in practice activities where there are natural radon release sources, the natural radiation level will increase to a higher level, which is higher than GB18871-2002 "Basic Standards for Electric Radiation Protection and Radiation Source Safety" and GBZ116-2002 " Limit requirements of Radon and its Progeny Control Standards for Underground Buildings. [0003] Due to the existence of natural radon release sources, natural ventilation cannot meet the needs of radiation protection. It is necessary to monitor the amount of radon release and calculate the ventilation rate, so as to control the additional exposure of radon and radon progeny to the lowest reasonable level in an economica...

AI Technical Summary

Problems solved by technology

[0005] According to the latest national standards and regulations (the radon concentration of existing underground buildings is lower than 200Bq / m3, and the radon concentration of underground buildings to be built is lower than 200Bq / m3), but because the radon concentration of underground buildings is not constant, in the daily work process , is in a changing state, and it is impossible to control the ventilation system of the workplace according to the change of the radon concentration, so as to achieve the balance between the radon concentration and the ventilation system of the workplace under the premise of energy saving

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