2results about How to "Change performance" patented technology

The application discloses a kind of reward methods based on pipeline transportation particle deposition rate and energy consumption constraint.The method combines and constructs into reward function with key parameters such as particle deposition rate in pipeline, inlet flow rate and pipeline pressure drop, and trains neural network based on the reward function to obtain suitable control strategy, so as to achieve the purpose of reducing deposition and optimizing flow state.The application solves the problem that deposition inhibition effect and system energy consumption optimization cannot be considered simultaneously in the existing particle deposition control method in pipeline.Through the continuous interaction of artificial deep neural network and flow field numerical simulation environment, network parameters are dynamically updated, and the optimal control strategy is gradually obtained.And accordingly adjust inlet fluid velocity, change the flow state in pipe, realize the effective inhibition of particle deposition.Through the reward mechanism based on particle deposition rate and energy consumption, deposition can be effectively reduced and eliminated, flow stability is improved, and the effect of reducing deposition is better than that of traditional method.

This invention discloses a low-frequency ventilation and noise reduction structure for a prefabricated substation, comprising a shell, multi-stage side-supported resonant sound absorbers, a main ventilation duct, a composite sound-absorbing layer, and a constrained damping layer. The shell has an air inlet and an air outlet. The main ventilation duct is formed inside the shell and runs through the airflow direction from the air inlet to the air outlet. The multi-stage side-supported resonant sound absorbers are located circumferentially or axially outside the main ventilation duct and are connected to the main ventilation duct through a neck channel. The composite sound-absorbing layer is located on the inner wall of the main ventilation duct, and the constrained damping layer is located on the inner side of the shell. Each stage of the side-supported resonant sound absorber has a different cavity volume, neck cross-sectional area, and equivalent neck length to absorb noise in different low-frequency bands. This invention, while maintaining the unobstructed ventilation and heat dissipation channels of the prefabricated substation, can achieve multi-peak coupling noise reduction for low-frequency noise in the 50~200Hz range, while also considering low voltage loss, compact structure, convenient installation, and adaptability to outdoor operation.