3results about How to "Guaranteed energy-saving operation" patented technology

The invention discloses a hot blast stove valve hydraulic control system and method and a blast furnace air supply system. The technical problems that in the prior art, a blast furnace hydraulic control system is short in service life, and energy waste is likely to be caused are solved. The hot blast stove valve hydraulic control system comprises a main oil supply device, a high-pressure energy accumulator set device, a low-pressure energy accumulator set device and a hydraulic cylinder. The working pressure of the high-pressure energy accumulator set device is larger than that of the low-pressure energy accumulator set device. The number of the hydraulic cylinders is the same as that of valves of the hot blast stove, the telescopic end of each hydraulic cylinder is connected to the corresponding valve so that the corresponding valve can be opened or closed, and rodless cavities of the hydraulic cylinders can be communicated with at least one of the main oil supply device, the high-pressure energy accumulator set device and the low-pressure energy accumulator set device in a switchable mode. And a rod cavity of the hydraulic cylinder is communicated with the main oil supply device. And a relatively energy-saving mode can be selected according to the characteristics of the valves in the blast furnace to control the opening and closing of the related valves through the hydraulic system, so that the aim of saving energy is fulfilled.

The utility model provides an emergency energy storage power supply system for coal mine key equipment. The emergency energy storage power supply system comprises a four-quadrant high-voltage frequency converter, a low-voltage PCS device and an auxiliary power supply system, the four-quadrant high-voltage frequency converter and the low-voltage PCS device share one phase-shifting transformer, high integration of the emergency energy storage power supply system is guaranteed, the four-quadrant frequency converter controls a load motor through cascade H bridge output, the alternating current side of the low-voltage PCS device is connected with a power grid through the transformer, and the direct current side of the low-voltage PCS device is a super capacitor module. After the main power grid loses power, the low-voltage PCS device provides energy for the four-quadrant high-voltage frequency converter, and continuous operation of the load motor is guaranteed. The four-quadrant frequency converter cabinet and the low-voltage PCS cabinet cooperate with each other to jointly complete energy conversion when the main power grid loses power or recovers power utilization. According to the utility model, a stable emergency energy storage power supply scheme can be provided for coal mine key equipment, and continuous and uninterrupted operation of a load motor is ensured.

The present application relates to the technical field of battery cooling, and discloses an adaptive dual-mode immersed liquid cooling system based on acoustic-heat flow collaborative sensing. The system comprises an acoustic sensor, a temperature sensor, a fuzzy controller, a multi-channel controller, a pump, a cooling coil, a radiator and a water tank. The system can perform single phase change cooling operation in a low rate mode and flow phase change collaborative cooling operation in a high rate mode, and mode switching decisions are made based on frequency domain changes of acoustic characteristics and calculated values of heat flow density. The acoustic sensor collects boiling acoustic wave signals of the cooling liquid, the temperature sensor monitors the battery temperature gradient, the fuzzy controller generates control instructions based on the above signals, and the multi-channel controller controls the pump power, the cooling coil flow and the radiator power. Through collaborative sensing and dual-mode adaptive adjustment, the system improves the cooling efficiency and response speed, adapts to different battery load states, and ensures the safe and stable operation of the battery.