Methane detecting system based on combined manhole cover and detection alarming method

Abstract

The invention relates to a methane detecting system based on a combined manhole cover and a detection alarming method. The methane detecting system comprises a manhole cover seat ring, wherein an outer cover for closing the manhole cover seat ring is arranged at the upper part of the manhole cover seat ring; an inner cover is also arranged in the manhole cover seat ring; a trepanning is formed in the inner cover; a waterproof mounting box is embedded in the trepanning; a circuit board is arranged in the waterproof mounting box; an MCU (Micro Controller Unit), a methane detection sensor, a power supply and a communication circuit are arranged in the circuit board; the methane detection sensor is connected with the MCU and is used for detecting the concentration of methane in a well; the power supply is used for providing a power supply for the circuit board; the communication circuit comprises an antenna pedestal which is arranged at the upper part of the waterproof mounting box and is used for fixing an antenna; an opening is formed in a position, opposite to the antenna, of the outer cover, and brings convenience to the communication of the antenna. According to the methane detecting method disclosed by the invention, the concentration of underground methane is acquired by a methane detecting system in a real time, so the construction safety of underground constructors is greatly guaranteed.

Description

technical field [0001] The invention relates to a biogas detection system and a detection and alarm method based on a combined manhole cover. Background technique [0002] The well cover is the closure on the top of the entrance and exit leading to the underground facilities. It is necessary to install the well cover in all places where public facilities such as running water, telecommunications, electricity, gas, heating, fire protection, and sanitation are installed. With the rapid development of my country's economy, my country's infrastructure construction has ushered in a new cycle, and the market demand for manhole covers in urban planning and road construction is huge. However, manhole covers are rolled and damaged from time to time, resulting in a decrease in the safety of roads and facilities. [0003] Manhole covers in the road are mainly used to cover the deep wells on the road. According to the different underground pipelines, some deep wells are used as water p...

AI Technical Summary

Problems solved by technology

However, manhole covers are often crushed and damaged, which reduces the safety of roads and facilities

[0003] Manhole covers in the road are mainly used to cover the deep wells on the road. According to the different underground pipelines, some deep wells are used as water pipelines, line pipelines or gas pipelines. The setting of deep wells is conducive to the maintenance of pipelines. However, in some special cases Under heavy rain or human factors, the manhole cover is removed and people or objects fall into the deep well, or are jacked up by the impact of the internal pressure of the deep well. These phenomena will bring huge safety hazards to people's travel.

At the same time, when the manhole cover is used as a cable and line pipeline, criminals often steal the cable by removing the manhole cover, which brings losses to national property.

[0004] The traditional manhole cover is a single-layer structure, which is easy to be damaged by rolling, and does not have the function of collecting the biogas concentration installed in the well, and cannot monitor the biogas concentration in the well in real time. Once the biogas concentration in the well is too high or too low, it will not Discharging may easily lead to biogas poisoning or biogas explosion for personnel performing underground maintenance work, while traditional biogas discharge is time-consuming, which is time-consuming and labor-intensive

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