3results about How to "Achieve fine control" patented technology

This invention discloses a method for monitoring the state trends of hydropower units based on two-stage signal decomposition and the IBiLSTM model. The method involves collecting vibration signals from the hydropower units for preprocessing; constructing the ITGCOA optimization algorithm and designing a fitness function; using the ITGCOA optimization algorithm to adaptively optimize the SVMD and BAACMD models, achieving initial decomposition of the preprocessed signal and secondary decomposition of the sub-mode component with the highest center frequency obtained from the initial decomposition; calculating the fuzzy entropy values ​​of the remaining sub-mode components for reconstruction; and fusing the high-frequency feature sub-sequences obtained from the secondary decomposition with the reconstructed feature sub-sequences to construct the input sequence of the prediction model. This input sequence is then used to construct the IBiLSTM prediction model for monitoring the state trends of hydropower units, achieving high-precision prediction. Compared with existing technologies, this invention improves the efficiency and accuracy of hydropower unit state trend prediction, accurately warns of abnormal unit operating conditions, ensures the safe and stable operation of the units, and improves the overall efficiency of the power plant.

This utility model discloses a temperature control valve for air compressors, specifically relating to the field of temperature control valve technology. It includes a valve body with a valve cover at the bottom. Multiple bolts are threaded onto the outer side of the valve cover, and spring washers are placed on the outer sides of the bolts. An inlet is located inside the valve cover, a first outlet is located at the top of the valve body, and a second outlet is located on one side of the valve body. A valve core support is installed inside the valve body, along with an adjustment mechanism and a sealing assembly. Compared to existing technologies, this utility model, through its adjustment mechanism, allows the valve core cover to move according to the different temperatures of the temperature bulb. This enables the liquid to automatically adjust its flow direction under different temperature conditions, rationally distributing fluid according to actual temperature requirements, preventing overheating or overcooling of the system, thereby improving the stability and reliability of the entire system.

The utility model discloses a cement strength anti -break testing machine relates to cement performance test field, including equipment main part, equipment main part top one side is provided with the pressure -bending detection mechanism, is provided with the pressurizing mechanism in equipment main part, and the pressurizing mechanism includes elevating support, and the elevating support is rotationally connected with worm wheel, and the elevating support front side is fixed with second motor, and second motor output is fixed with worm, and worm is engaged with worm wheel, and the middle screw thread of worm wheel is connected with elevating stud, and the bottom hinged of equipment main part has pressurizing lever, and two connecting sliding blocks are slidably connected on pressurizing lever, and connecting sliding block is hinged with elevating stud, and another connecting sliding block is connected with pressure -bending detection mechanism. Advantageous effects lie in: second motor drives elevating stud to go up and down through worm and worm wheel, and elevating stud drives force transmission vertical pole to go up through pressurizing lever, and can pressurize cement test block like this, utilizes the big transmission ratio and self -locking characteristic of worm and worm wheel, can fine control pressure and the stability of pressure.