The invention discloses an old bridge floor drainage emergency transformation
system and a bridge, and relates to the technical field of municipal
bridge engineering. The
system comprises a vertical drainage
pipe, a longitudinal drainage
pipe, a hazardous
chemical substance identification sensor and an emergency pipeline, an inlet of the longitudinal drainage
pipe is connected with an outlet of the vertical drainage pipe, the hazardous
chemical substance identification sensor is arranged at an outlet of the longitudinal drainage pipe and is used for making a hazardous
chemical substance alarm when recognizing that hazardous chemical substances exists in the passing rainwater, and the emergency pipeline comprises an emergency pipeline body and a first
control switch; when the first
control switch receives the hazardous chemical substance alarm, the first
control switch is in an open state, otherwise, the first control switch is in a
closed state, and a non-emergency pipeline comprises a non-emergency pipeline body and a second control switch; and when the second control switch receives the hazardous chemical substance alarm, the second control switch is in a
closed state, and otherwise the second control switch is in an open state. According to the old bridge floor drainage emergency transformation
system and the bridge, the rainwater containing pollutants and the rainwater containing the hazardous chemical substance can be separated, and the rainwater containing the pollutants or hazardous chemical substances can be prevented from directly flowing into a river body.