Online tail gas ozone concentration monitor

The utility model discloses an online tail gas ozone concentration monitor, which relates to the technical field of tail gas and comprises a bottom plate, the inner bottom wall of a box body is fixedly connected with a detection box, the left side surface of the detection box is fixedly communicated with a gas pipe, and the inner side wall of the detection box is fixedly connected with a low-pressure mercury vapor lamp. The inner side wall of the detection box is fixedly connected with a light receiver, and the inner bottom wall of the detection box is fixedly connected with a pressure sensor. According to the online tail gas ozone concentration monitor, ozone is generated through reaction of the silent discharge tube, then gas is conveyed into the drying box through the first air pump, and then the gas is dried through the hot air fan; gas conveying can be achieved through mutual cooperation of a gas pipe, a second gas pump, a second sliding groove, a forward and reverse rotation motor, a gear, a rack, a baf