The utility model relates to the technical field of preparation of
diethylene glycol monoethylene diether, and particularly discloses a dissolving device for preparation of
diethylene glycol monoethylene diether, which comprises a tank body, a
discharge pipe arranged at the bottom of the tank body and provided with a
discharge valve, and a top cover arranged at the top of the tank body, a
pressure release valve, a
pressure sensor, a dropper, a
PH probe and an
oxygen concentration analyzer are integrated at the top of the top cover, a liquid outlet of the dropper, the
pressure sensor, the
PH probe and a detection probe of the
oxygen concentration analyzer all extend into the tank body, and a stirring mechanism is combined with a crushing cutter, so that uniform mixing of a high-
viscosity material and low-boiling-point
vinyl ether is realized, the reaction is accelerated, and the reaction efficiency is improved. Microbubble groups generated by the annular
nitrogen distribution
pipe are combined to enhance liquid turbulence, improve the reaction conversion rate and reduce by-products, and a
pressure release valve, a
pressure sensor and
oxygen concentration real-time monitoring are combined, so that the oxygen concentration in the tank is kept stable, and the risk of burning explosion is completely eradicated.