High-temperature BTB flow sensor

The utility model relates to a high-temperature BTB flow sensor, which is provided with a straight pipe-shaped connecting pipe, wherein a pressure taking head is connected to a lower end of the connecting pipe; a total pressure interface and a static pressure interface are arranged on an upper end of the connecting pipe; a jacketed pipe is sleeved on an outer side of the connecting pipe; a connecting flange is arranged outside the jacketed pipe; an inlet and an outlet are arranged on an upper side of the jacketed pipe; a fluid medium distribution pipe with an axis being parallel to an axis of the jacketed pipe is arranged in the jacketed pipe; an upper end of the fluid medium distribution pipe is connected with the inlet of the jacketed pipe; and small holes uniformly distributed along a pipe wall are arranged on the pipe wall of the fluid medium distribution pipe. According to the high-temperature BTB flow sensor, the jacketed pipe is arranged on the outer side of the connecting pipe, the fluid medium distri