5results about How to "Achieving Zero Leakage" patented technology

The invention belongs to the cross technical field of deep well mine filling and energy recovery, and particularly relates to a deep well filling pressure reduction and graded pressure energy recovery power generation system, an energy efficiency monitoring method and an operation control method. Comprising an earth surface filling preparation station, a filling vertical pipe, a decompression chamber, a first-stage coupling rotational flow driving device, a second-stage coupling rotational flow driving device, a pressure stabilizing buffer tank and a tail end filling working face. The earth surface filling preparation station conveys slurry into the pressure reduction chamber through the filling vertical pipe, the slurry is conveyed to the first-stage coupling rotational flow driving device through pressure reduction in the pressure reduction chamber, and the first-stage coupling rotational flow driving device drives the first-stage permanent magnet generator to generate electricity. The slurry is conveyed to a secondary coupling rotational flow driving device through a transition pipe after coming out of the primary coupling rotational flow driving device, and the secondary coupling rotational flow driving device drives a secondary permanent magnet generator to generate electricity; the slurry flows out of the secondary coupling rotational flow device and then enters the pressure stabilizing buffer tank, and then is conveyed to a tail end filling working face through the pressure stabilizing buffer tank.

The invention belongs to the technical field of environmental engineering, and particularly relates to a contaminated soil micro-foam leaching device and method based on the ATP forming principle, a supporting table is fixedly provided with a large crossed roller bearing, the large crossed roller bearing is provided with three high-frequency vibration tables, the three high-frequency vibration tables are each provided with a reaction tank, and the reaction tanks are arranged on the supporting table; the three reaction tanks are sequentially arranged in a clockwise mode to be a filling station, a leaching station and a discharging station, a discharging component is arranged on the filling station, a micro-foam generating module is arranged on one side of the leaching station and arranged on a supporting table, an anti-leakage collecting barrel is arranged below the discharging station, and a discharging component is arranged on the discharging station. The technical scheme is innovated from the aspect of mass transfer principle, continuous physical conveying of soil can be achieved, targeted transfer of pollutants from the soil to a leaching medium can be actively driven through an ATP bionic mechanism, and three core challenges of mass transfer efficiency, operation cost and secondary pollution are systematically solved.

The present application belongs to the technical field of power transmission and transformation project environmental ecological monitoring, and discloses a kind of power transmission and transformation project aquatic ecological influence intelligent monitoring system, by detachable connection and cooperative linkage electromagnetic monitoring module, multiple biological closed exposure module, aseptic periodic sampling module, data transmission, intelligent fusion determination and self-adaptive control module and biological safety and outdoor adaptation module composition.The power transmission and transformation project aquatic ecological influence intelligent monitoring system of the present application has multiple biological cooperation, high evaluation accuracy;Electromagnetic monitoring and biological exposure precise linkage;Aseptic rapid sampling, adapt to field demand;Biological safety is controllable, and adapts sensitive area;Field-laboratory linkage, realizes closed loop evaluation;Intelligent control enhancement, result can be reviewed and other advantages.

The application discloses a hydrogen fuel control system for unmanned aerial vehicles, which comprises a hydrogen bottle, a pressure reducing valve, a hydrogen inlet valve, a first pressure sensor, a fuel cell stack, a steam-water separator, a double-variable peristaltic pump, a second pressure sensor, a controller, a drain valve, a temperature sensor and a current sensor. The system constitutes a closed hydrogen circulation loop to recover unreacted hydrogen. The controller monitors the hydrogen circulation pressure, the stack temperature and the load current in real time through a sensing network composed of double pressure sensors, a temperature sensor and a current sensor, analyzes the load change and the water-heat state based on the built-in program, and cooperatively regulates the rotating speed and the extrusion degree of the double-variable peristaltic pump, dynamically optimizes the flow and the flushing intensity of the hydrogen circulation. The system solves the water-heat management problem of the fuel cell of the unmanned aerial vehicle under dynamic working conditions, improves the hydrogen utilization rate, effectively prevents water flooding and membrane dryness, and guarantees the efficient, stable and long-life operation of the system.

The invention discloses a high-pressure magnetic fluid sealing device which comprises a bearing assembly arranged between a shell and a shaft sleeve and used for bearing radial loads generated when the shaft sleeve rotates at a high speed. The magnetic fluid sealing assembly is arranged on the outer side of the shaft sleeve, located below the bearing assembly and used for achieving zero-leakage precise sealing; the second-stage rotating plane friction sealing assembly is arranged on the outer side of the shaft sleeve, located below the magnetic fluid sealing assembly and used for achieving coarse sealing, unloading and impurity blocking under the high-pressure working condition; wherein the shaft sleeve is sleeved on the outer side of a rotating shaft, and the top of the shaft sleeve is connected with the rotating shaft through a locking sleeve, so that the shaft sleeve and the rotating shaft synchronously rotate. The second-stage rotating plane friction sealing assembly comprises a movable ring which is arranged on the outer side of the shaft sleeve in a sleeving mode. The two static rings are arranged on the upper side and the lower side of the movable ring respectively. According to the high-pressure magnetic fluid sealing device, the existing defects are overcome, the sealing pressure is effectively improved, and zero leakage is achieved.