Flue gas flow detection device for thermal power plant

The utility model relates to the technical field of flue gas flow detection equipment, and discloses a thermal power plant flue gas flow detection device which comprises a flue gas flow meter, the gas inlet end of the flue gas flow meter is fixedly communicated with a communicating pipe, and the top end of the communicating pipe is fixedly communicated with an electromagnetic valve and a one-way valve. The top ends of the electromagnetic valve and the one-way valve are jointly and fixedly communicated with a detection hollow block, a threaded hole is formed in the upper surface of the detection hollow block, the hole wall of the threaded hole is in threaded connection with a connecting threaded ring, and the inner wall of the connecting threaded ring is fixedly connected with a smoke component detection probe. According to the utility model, the flue gas flow detection device for the thermal power plant has the capability of static flue gas component detection, the accuracy of flue gas component detection is