Water phase solution quality on-line detection system and detection method

The invention discloses a water phase solution quality on-line detection system which is arranged at a water phase solution tank of an explosive production line and comprises an inlet ball valve, a solution circulating pump, a density temperature sensor measurement tee joint, a tee joint A, a tee joint B, a glass sight glass and an outlet ball valve which are sequentially connected through a pipeline, the system further comprises a density temperature sensor, a PH value sensor, a temperature sensor, an infrared correlation sensor and an environment temperature sensor. The invention further discloses an online crystallization point detection method for the water-phase solution, the method is divided into a preparation stage, a measurement stage and an ending stage, and a mode of combining correlation measurement and video recognition is adopted when the crystallization state of the solution is judged. A video mode recognition technology, a sensor technology and the like are adopted for devitrification detectio