Coriolis mass flow meter

The utility model discloses a Coriolis mass flow meter and belongs to the LNG (Liquefied Natural Gas) technical field. The Coriolis mass flow meter comprises a sensor portion and a transmitter portion; the sensor portion comprises double rows of measuring pipes which are arranged in a housing; the middle of the housing is in wire connection with the transmitter portion through a connecting sleeve; the connecting sleeve is connected with the transmitter portion; a sealing assembly is arranged in the connecting sleeve; two ends of the double rows of measuring pipes are close to each other and are connected onto a flow dividing main body to enable the double rows of measuring pipes to form a triangle structure; the middle of the double rows of measuring pipes is provided with a driving coil; the positions of triangle corners which are formed on the double rows of measuring pipes are provided with detection coils; an inlet end of the double rows of measuring pipes is provided with a temperature sensor; leads of the driving coil, the detection coils and the temperature sensor penetrate the sealing assembly from the connecting sleeve to be connected onto the transmitter portion. According to the Coriolis mass flow meter, a double pipe structure is adopted and accordingly the sensitivity of the external vibration can be reduced, the phase difference measurement is easy to implement, and accordingly the measurement accuracy is high and the application range is wide.