42 results about "Assimilative capacity" patented technology

The invention relates to the technical field of wind power generation, and is a method for improving the success rate of reclosing of tie lines of clustered wind farms; The connection and synchronization between the wind farm and the system. After the phase-to-phase or two-phase grounding transient fault of the cluster wind farm connection line is eliminated, the cluster wind farm can be put into operation again, which shortens the time for the entire system to return to normal operation and avoids phase-to-phase or two-phase ground faults. When a two-phase grounding transient fault occurs, large-scale wind farms disconnected from the grid will affect the stability of the system, ensuring the stable operation of large-scale wind power connected to the grid, improving the benefits of wind farms and the system's ability to absorb wind power, and promoting wind power. develop.

The invention discloses a pre-warning method for assimilative capacity of reservoirs based on a least squares method. The method comprises the following steps: (1) selecting a plurality of water quality monitoring points in a reservoir; (2) monitoring the water quality of high, middle and low water layers of the monitoring points; (3) calculating reservoir water quality parameters; (4) calculatingthe water quality parameters in the next 12 hours by utilizing least squares curve fitting based on historical reservoir water quality parameters; (5) prompting when a pre-warning value in a predicted period of time appears. According to the method provided by the invention, the function fitting is carried out after optimizing the monitoring data, and the reservoir water quality parameters in thenext 12 hours are predicted so as to provide assistant decision for the management staff.

The invention discloses a method and a device for testing assimilability of iron ore powder. The method comprises the steps as follows: the iron ore powder and lime are calcined firstly, and the sintering process is simulated; then the assimilative lime amount is tested; and finally, the assimilation data of the iron ore powder is obtained according to a ratio of the assimilative lime amount to the assimilative area of the iron ore powder, so that the assimilability of the iron ore powder is represented. According to the method and the device for testing the assimilability of the iron ore powder, in consideration of the phenomenon that the assimilative capacity and the assimilative speed can be represented by the thickness change of a product due to uncertainty of the reaction direction in a sintering process, the thickness of the reaction product is adopted as an evaluation basis of the assimilability of the iron ore powder, and the three-dimensional assimilation data is obtained by testing the ratio of the assimilative lime amount to the assimilative surface area, so that the assimilability of different types of iron ore powder is represented and distinguished accurately, data of the assimilative speed and the assimilative temperature sensibility can be obtained accurately, and accordingly, the temperature sensibility of the assimilation reaction of the iron ore powder as well as the assimilation speeds of different types of iron ore powder under the same test condition are reflected accurately.

The invention belongs to the technical field of contamination control of an aviation turbine fuel system, and particularly relates to a combined filter. The combined filter comprises a self-washing oil filtering framework, wherein an oil return opening of the self-washing oil filtering framework is connected with a self-washing oil filtering oil return pipe; an inlet end of the self-washing oil filtering framework is fixedly connected with a turbulence promoter; an inlet end of the turbulence promoter is connected with a self-washing oil filtering inlet pipe; the self-washing oil filtering framework is provided with a self-washing oil filtering screen; a self-washing oil filtering oil outlet connected with a turbulence oil filtering inlet pipe is formed in the turbulence promoter in a position corresponding to the self-washing oil filtering screen. The combined filter is simple and reasonable in structure, can effectively solve the problems of poor assimilative capacity and short maintenance cycle of an existing combed filter in the operation process, can greatly reduce the pollutant deposition on the surface of a filter material, and effectively prolong the maintenance cycle of the combined filter.