Detection and protection system for limited space and using method thereof

Abstract

The invention belongs to the field of limited space operation, and mainly relates to a construction protection device for an underground closed space, in particular to a detection and exhaust system for a limited space and a using method thereof. The system comprises that a working well and an exhaust well are arranged at the top of a closed construction space, and a tripod is installed at the wellhead position of the working well; An electric tractor is suspended in the tripod, a wellhead of the exhaust shaft is connected with an exhaust fan through an exhaust pipe, a self-propelled vehicle is mounted in the closed construction space; the self-propelled vehicle, the electric tractor and the exhaust fan form an ad-hoc network through a network protocol, and the ad-hoc network is communicated with a remote platform. An infrared camera, a four-in-one gas detector and a wireless communication unit are installed in the self-propelled vehicle, the signal output end of the infrared camera and the signal output end of the four-in-one gas detector are in signal communication with a remote platform through the wireless communication unit, and the remote platform is connected with the motorcontrol end of the electric tractor and the control end of the exhaust fan.

Description

technical field [0001] The invention belongs to the field of limited space operations, and mainly relates to a construction protection device for an underground closed space, in particular to a detection and exhaust system for a limited space and a use method thereof. Background technique [0002] Confined space refers to a space that is closed or partially closed, with narrow and limited entrances and exits, not designed as a fixed workplace, poor natural ventilation, and prone to accumulation of toxic and harmful, flammable and explosive substances, or insufficient oxygen content. Including airtight equipment, limited underground space, and limited space above ground. There are poisoning risks, hypoxia risks, and explosion risks in limited space operations. Therefore, ventilation is generally carried out before operation, and a four-in-one composite gas detector (including: oxygen, combustible gas, hydrogen sulfide, carbon monoxide) is used to detect the gas in a limited ...

AI Technical Summary

Problems solved by technology

The traditional method has the following problems: (1) Before operation, only the gas concentration at the entrance of the limited space can be measured, and the gas concentration in all the limited space cannot be detected, and the detection space is limited

(2) During operation, gas detection and recording are performed every 1 hour, and real-time detection and recording cannot be realized

(3) When exhausting, the exhaust device performs exhaust acc

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