Ventilating and filtering device for civil air defense project

Abstract

The invention relates to the technical field of civil air defense projects, and discloses a ventilating and filtering device for a civil air defense project. The ventilating and filtering device comprises a ventilation opening, wherein the right side of the ventilation opening is fixedly connected with an air outlet pipe, a detection box is fixedly installed at the middle position of the air outlet pipe, and the tail end of the right side of the air outlet pipe is fixedly connected with dispersion pipes; and the tail ends of the right sides of the dispersion pipes are fixedly connected with a mounting block, the middle position of the right side surface of the mounting block is fixedly connected with an air inlet pipe, and filtering pipes are fixedly connected to the positions, located on the outer sides of the air inlet pipe, of the right side surface of the mounting block. The mounting block is installed on a wall body of the civil air defense project, one side face of the ventilation opening faces the interior of the civil air defense project, in a normal state, illuminating lamps directly irradiate photoresistors, the resistance value of the photoresistors is increased, a driving wheel is powered off, meanwhile, smog does not exist in an optical maze, rays of infrared emitters are not refracted, and the air is exchanged with outside air through the ventilation opening, the air outlet pipe, a connecting pipe, the filtering pipes and the air inlet pipe at the moment.

Description

technical field [0001] The invention relates to the technical field of civil air defense engineering, in particular to a ventilation filtering device for civil air defense engineering. Background technique [0002] Civil air defense projects refer to the underground protective buildings built separately to ensure the shelter of personnel and materials in wartime, civil air defense command, and medical rescue, as well as the basements built in combination with ground buildings that can be used for air defense in wartime. According to the wartime use, they can be divided into Command communication, personnel shelter, etc., can be divided into shopping malls, playgrounds, etc. according to their usual uses. The civil air defense project is mainly a closed underground environment. In order to ensure its normal use, it is necessary to maintain its internal air circulation through various ventilation and fresh air devices. However, although the commonly used ventilation pipes and ...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies of the prior art, the present invention provides a ventilation and filter device for civil air defense projects, which has the effect of increasing the circulation of air in the event of a fire or other special circumstances, and maintains the air health inside the civil air defense project and protects the environment in the event of a fire or other special circumstances. In other special cases, the alarm signal is sent by detecting the increase of smoke, which reduces safety hazards and other advantages, and solves the problem that the normal circulation of air cannot be maintained in different environments

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