Nuclear magnetic flowmeter

A nuclear magnetic flowmeter, comprising:

• a straight measuring tube through which a multiphase medium can flow;
• a magnetization device around the measuring tube that provides a magnetic field in the medium;
• at least one gradient coil that produces a gradient in the magnetic field and/or at least one signal coil, for exciting the medium and/or detecting the result of the excitation;
• and
• a first coil insulating frame and a housing,
• wherein:
• the housing has a first face side and a second face side along a longitudinal axis of the measuring tube;
• the first face side includes a first housing opening and the second face side includes a second housing opening for routing the measuring tube through;
• the magnetization device is provided in the interior of the housing;
• the housing is tightly sealed aside from the two housing openings;
• the at least one gradient coil and/or the at least one signal coil are located in a space penetrated by the magnetic field between the measuring tube and the magnetization device;
• the at least one gradient coil and/or the at least one signal coil are located on the first coil insulating frame;
• a first coil suspension is between the first coil insulating frame and the first face side of the housing;
• a second coil suspension is between the first coil insulating frame and the second face side of the housing;
• a top of the first coil insulating frame, at least in a first section between the first coil suspension and the second coil suspension, is a closed surface;
• the first coil suspension seals the first coil insulating frame with the first face side of the housing;
• the second coil suspension seals the first coil insulating frame with the second face side of the housing;
• and
• the housing together with the first coil insulating frame and the coil suspensions is tightly sealed.