The invention discloses a sewer detection and danger
elimination system. The sewer detection and danger
elimination system comprises a well lid
assembly, an exhaust device, a guide device, a detection device, a drainage device, a connecting device and a control device, wherein the well lid
assembly comprises an outer frame and a well lid main body arranged on the inner side of the outer frame; the exhaust device comprises a first gas guide cylinder, a second gas guide cylinder, a first bracket, a motor, fan blades, a
combustion bin and an absorption
assembly; the guide device comprises a guide
pipe fitting and a guide cylinder; the detection device comprises a second bracket, an ultrasonic
ranging piece and a gas sensor; the drainage device comprises a
water storage tank, a bracket assembly and a
grating plate; the connecting device comprises a
pulley arranged on the first bracket and a pull
rope wound on the
pulley; and the control device is arranged on the first gas guide cylinder or the second gas guide cylinder and is electrically connected with the motor, an igniter, the ultrasonic
ranging piece and the gas sensor. Through the structure, the concentration of
combustible gas can be detected, when the concentration exceeds the standard, gas in a sewer and a well can be pumped out, the
combustible gas is combusted, toxic and harmful substances in
waste gas are absorbed, and the safety is improved.