Overpressure and negative-pressure protecting device monitoring and alarm system

Abstract

The invention discloses an excessive pressure and negative pressure protective device monitoring and alarming system used on a van-type vehicle for monitoring and alarming the running state of an excessive pressure and negative pressure protective device. The system of the excessive pressure and negative pressure protective device monitoring and alarming system of the invention comprises a monitoring and controlling unit, a signal detection unit and an audible and visual alarm unit, and the monitoring and controlling unit transmits signals to the audible and visual alarm unit. The system implements the real-time monitoring to the running state of the excessive pressure and negative pressure protective device, and can immediately distinguish and send out alarm signals and prompt related personnel to take corresponding measures when invalidation takes place. The system can effectively avoid dangers caused by absence of protective measures resulting from lack of prompt and alarm when bodies and pipelines or joints of the excessive pressure protective device or the negative pressure protective device leak.

Description

technical field [0001] The invention relates to the technical field of biological and chemical protection engineering, in particular to a monitoring and alarm system for overpressure and negative pressure protection devices used in van vehicles. Background technique [0002] Usually, the overpressure and negative pressure protection devices equipped on van vehicles do not have the function of running status monitoring and alarming. Due to vehicle vibration, impact, etc., it may cause leakage of the overpressure protection device or negative pressure protection device itself and its pipeline or interface, causing the overpressure protection device and negative pressure protection device to lose their protective effect due to failure; in addition, for the use of The overpressure protection device of the filter absorber, after a long time of use, the activated carbon in the filter absorber has reached a saturated state, and continued use will not be able to achieve the adsorpti...

AI Technical Summary

Problems solved by technology

Due to vehicle vibration, impact, etc., it may cause leakage of the overpressure protection device or negative pressure protection device itself and its pipeline or interface, causing the overpressure protection device and negative pressure protection device to lose their protective effect due to failure; in addition, for the use of The overpressure protection device of the filter absorber, after a long time of use, the activated carbon in the filter absorber has reached a saturated state, and continued use will not be able to achieve the adsorption of chemical agents; for the high-efficiency filter layer or high-efficiency filter inside the filter absorber After long-term use, due to the dust in the air clogging the surface of the filter paper, the ventilation of the filter absorber or high-efficiency filter will be insufficient, and the protective effect will be reduced; when the filter absorber or high-efficiency filter is accidentally damaged due to external force When it is used, it will lose the filtering effect on fine particles such as biological aerosols, thus losing the protective function

When a van vehicle with overpressure protection function passes through a biological or chemical pollution area, the polluted air will enter the compartment through the overpressure protection device that has lost its protective function, causing harm to the personnel and equipment in the compartment; similarly, when using When the van vehicle with negative pressure protection function transports the sick and wounded or biological pollutants, the polluted air in the compartment will be discharged out of the vehicle through the negative pressure protection device that has lost the protective function, causing pollution to the environment outside the vehicle along the way

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