Ultrasonic gas meter runner

The utility model provides an ultrasonic gas meter flow channel, and aims to solve the technical problem that a measured result has a large error due to the influence of disordered airflow in the channel. The flow channel comprises a pipeline, the size of two ends of the pipeline is larger than that of the middle of the pipeline, one end of the pipeline is provided with a first-stage rectification area, the first-stage rectification area is of a horn-shaped structure, and the inner wall between the first-stage rectification area and the middle of the pipeline is of a curved surface transition structure; the rectification pieces are arranged in the pipeline in parallel, the rectification pieces are close to the first-stage rectification area, all the rectification pieces form three channels in the pipeline, and a second-stage rectification area is formed by all the rectification pieces and the middle of the pipeline; and the two ultrasonic transducers are arranged in the middle of the pipeline and are arranged