2results about How to "Guaranteed temperature gradient" patented technology

The application provides a combined bottom plate structure of a laser, which is a multi-layer plate integrated structure fixedly connected to the bottom of the inner cavity of the laser, comprising a support plate, a semiconductor refrigerator, a heat insulation pad, a base plate and a mounting plate; the bottom surface of the support plate is fixedly connected to the bottom of the inner cavity of the laser shell; the semiconductor refrigerator and the heat insulation pad form a first square body structure, the bottom surface of the first square body structure is connected to the top surface of the support plate; the mounting plate and the base plate form a second square body structure; the bottom surface of the second square body structure is connected to the top surface of the first square body structure, and the top surface of the second square body structure is an optical platform for bearing a plurality of optical components and absorbing heat. The application also provides a heat dissipation method for the combined bottom plate structure of the laser. The application solves the technical problem that the bottom plate structure of the existing laser cannot simultaneously meet the requirements of high-efficiency heat dissipation, accurate temperature control and stable structure due to the single material.

The application discloses a new energy battery coating post-drying multivariable model predictive control system APC The control system performs real-time optimization control and rolling update according to the calling period. Specifically, the control system performs prediction and optimization calculation based on a model according to the set values of the return air valve opening, the exhaust fan frequency and the external circulating fan frequency of the last calling period, the NMP concentration measurement value at the current time, the oven pressure measurement value, the target value of the NMP concentration and the measurable external disturbance change data, and outputs the optimal sequence of the set values of the return air valve opening, the exhaust fan frequency and the external circulating fan frequency of the next period. Finally, the output values of the first time of all input variables in the optimal sequence are written back to the related actuators of the drying system, and the closed-loop control is completed. The application realizes real-time online optimization of the post-coating drying process based on the predicted dynamic optimization control under the premise of guaranteeing the stability of the system and the non-exceeding of the toxic solvent NMP concentration, and realizes energy consumption reduction while guaranteeing the collaborative and stable operation of the multiple ovens.