Micro constant-speed constant-pressure pump device and nuclear magnetic resonance imaging system

The invention discloses a micro constant-speed constant-pressure pump device and a nuclear magnetic resonance imaging system, and belongs to the technical field of experimental devices, the micro constant-speed constant-pressure pump device comprises a base, a control box, a pneumatic electromagnetic valve assembly, a double-pump body and a transmission mechanism, the control box and the pneumatic electromagnetic valve assembly are installed at the top end of the base, and the transmission mechanism is installed in the control box; the first pump body and the second pump body are the same in structure and installed on the two sides of the pneumatic electromagnetic valve assembly, one end of the screw is connected with a piston in the cylinder barrel, the output end of the transmission mechanism is provided with a screw sleeve, the other end of the screw is in threaded connection with the screw sleeve, and the transmission mechanism and the pneumatic electromagnetic valve assembly are both electrically connect