The present invention belongs to the technical field of testing equipment, and discloses a flow field characteristic testing device for a twin-screw extruder, comprising a testing assembly and a driving assembly. The driving assembly is mounted on the top of the testing assembly, and a plurality of detecting assemblies are mounted at the bottom of the driving assembly. The driving assembly is used for driving the detecting assemblies to move telescopically, and the detecting assemblies are used for detecting fluid in the testing assembly. The testing assembly comprises a barrel, and a plurality of detecting channels are arranged at equal intervals on the top of the outer wall of the barrel. Each detecting channel comprises a first mounting hole, and a second mounting hole is formed at the bottom of the inner wall of the first mounting hole. A sealing injection assembly is correspondingly mounted on each detecting assembly, and the sealing injection assembly is adapted to inject a sealing isolation medium into at least the second mounting hole of the corresponding detecting channel after the detecting end of a detecting device is inserted into the through hole, so as to improve the sealing performance between the detecting device and the barrel and enhance the accuracy of fluid detection inside the barrel by the detecting device.
Country Code: CN
Application Number: CN202410112520.5
