High-viscosity polymer online viscosity detection device and detection method thereof

The invention relates to a high-viscosity polymer online viscosity detection device and a detection method thereof. The device comprises a detection mechanism. The detection mechanism is connected with a polymerization kettle through a circulation detection pipeline, the liquid outlet end of the circulation detection pipeline is connected with the bottom of the polymerization kettle, and the liquid inlet end of the circulation detection pipeline is connected with the upper portion of the polymerization kettle and the bottom of the detection mechanism. A viscosity detector is arranged on the outer detection cylinder, the viscosity detector comprises a rotor shaft extending into the detection cavity, and a liquid level height detector is arranged on the outer detection cylinder. A flow direction executing mechanism is arranged at the liquid inlet end of the circulation detection pipeline, the top of the flow direction executing mechanism is connected with the detection cavity, and one end of the flow direction