3results about How to "Solve the shock" patented technology

The invention relates to the technical field of digital twinning simulation, in particular to a digital twinning-based temperature and humidity verification box multi-physics field real-time monitoring method, which comprises the following steps of: constructing a digital twinning grid index system, and solving a no-load flow field by using CFD (Computational Fluid Dynamics) simulation to obtain reference turbulent energy; obtaining geometric data of a to-be-detected device, mapping the to-be-detected device to the digital twin grid index system by using a voxelization algorithm, and calculating a thermal inertia correction coefficient; the flow field is iteratively solved based on the thermal inertia correction coefficient, a source item is generated by applying the virtual resistance density and the turbulent energy, and real-time corrected turbulent energy is obtained through calculation; calculating a reliability weight according to the ratio of the real-time corrected turbulent energy of the grid unit where the sensor is located to the reference turbulent energy, wherein the reliability weight is in negative correlation with the ratio; and weighting the monitoring data by using the reliability weight to realize closed-loop control. According to the method, the problem of monitoring misalignment caused by flow field topology change is effectively solved, and the monitoring accuracy is improved.

The invention relates to the technical field of water treatment, discloses an intelligent flocculant adding method and system based on water quality dynamic data, and aims to solve the technical problems that an existing adding mode is extensive, lagged in control and difficult to adapt to dynamic water quality fluctuation. The method comprises the following steps: collecting turbidity and flow data of a water inlet end; carrying out feedforward prediction by utilizing a long-short-term memory network model, calculating a theoretical dosage and driving a metering pump to execute; and the effluent turbidity is monitored in real time, and feedback correction is performed by using a PID algorithm. The system comprises an online monitoring unit, an intelligent control unit, a precise adding execution unit and an effect feedback unit. Through composite control of feedforward prediction and feedback correction, advanced and accurate addition of the flocculant is realized, the drug consumption cost is reduced, the impact load is effectively dealt with, and the stability of the effluent quality and the intelligentization of system operation and maintenance are ensured.

This utility model relates to a protective device for a float level gauge in a hot water tank, belonging to the technical field of level measurement equipment. It includes a float level gauge body, a protective sleeve, a positioning component, and a hot water tank body. The protective sleeve is fitted onto the float level gauge body and has a flange connection groove. The float level gauge body and the flange connection groove are detachably connected. The positioning component is located at the lower end of the protective sleeve and positions the float level gauge body. The protective sleeve and the hot water tank body are detachably connected. This utility model, a protective device for a float level gauge in a hot water tank, systematically solves the accuracy and reliability problems of float level gauges under steam or high-speed water flow conditions through a modular design of the protective sleeve, positioning component, and flange groove; dynamic fluid control of the protective sleeve, water permeable hole, and baffle; and precision mechanical constraint of the positioning ring and connecting rod.