ROUTING OPTIMIZATION METHOD FOR TRUCK-DRONE INTEGRATED RESCUE VEHICLES IN FOREST FIREFIGHTING

    公开(公告)号:US20240320572A1

    公开(公告)日:2024-09-26

    申请号:US18209608

    申请日:2023-06-14

    IPC分类号: G06Q10/047 G01C21/34

    CPC分类号: G06Q10/047 G01C21/3446

    摘要: A routing optimization method for truck-drone integrated rescue vehicles in forest firefighting includes the following steps: collecting the data of the disaster sites caused by forest fires, calculating transportation time on road and flight time according to the data of the disaster sites, and getting the transportation time data of post-disaster relief; based on the disaster site data, transportation time data, and an amount of relief supplies that can be allocated to disaster relief sites, constructing a mathematical model of the truck-drone based vehicle routing problem; solving the mathematical model of the truck-drone based vehicle routing problem by the optimization algorithm, and specifying a post-disaster rescue route of the truck-drone integrated rescue vehicle according to the solution results. The model based on the truck-drone based vehicle routing problem method can reduce the impact of sudden natural disasters, and give full play to the advantages of truck-drone integrated rescue vehicles.

    HOLLOW SPHERICAL CATALYST FOR FIXED BED WITH INTERNAL FLUIDIZATION OF PARTICLES, AND METHOD FOR PREPARING SAME

    公开(公告)号:US20230390753A1

    公开(公告)日:2023-12-07

    申请号:US18316455

    申请日:2023-05-12

    摘要: The present invention discloses a hollow spherical catalyst for a fixed bed with internal fluidization of particles and a method for preparing the same. The preparation method used in the present invention is characterized in: fully mixing precious metal nanopowder with an organic oil phase to form an internal oil phase; preparing a gel ball of an oil-in-water structure by taking an aluminum oxide molding solution as an outer aqueous phase using an independently researched and developed coaxial dual-dropper forming apparatus; and then preparing a hollow aluminum oxide catalyst containing precious metal powder from the gel ball through processes of aging, calcination, and reduction. The resulting catalyst is expressed as X@Al2O3, where the precious metal nanopowder X is wrapped inside hollow Al2O3, and the catalyst has an outer diameter of 1.5-5.0 mm, a shell pore diameter (aluminum oxide) of 10-50 nm, and the precious metal nanopowder sized 200-500 nm. When the catalyst is used in a fixed bed, the reactant and product molecules diffuse into and out of the catalyst smoothly and fully contact with precious metal components, forming a micro-fluidization reaction system, thus realizing complementary advantages of an existing fixed-bed catalyst and a fluidized-bed catalyst, and reducing losses of active components of the precious metal.

    ENERGY SAVING AND EMISSION REDUCTION SYSTEM FOR CHEMICAL SEPARATION AND PURIFICATION PROCESS

    公开(公告)号:US20230191277A1

    公开(公告)日:2023-06-22

    申请号:US18113067

    申请日:2023-02-23

    发明人: Qunsheng Li

    摘要: An energy saving and emission reduction system for chemical separation and purification process is disclosed. The chemical separation and purification process includes a synthesis section and/or a distillation section and/or a recovery section. The energy saving and emission reduction system includes an energy comprehensive utilization maximizing energy saving module. The energy comprehensive utilization maximizing energy saving module comprehensively evaluates the chemical separation and purification process, and acquires a lowest energy consumption value according to initial and final material flow parameters. Then energy integration optimization and energy saving technical modification are performed on the synthesis section and/or distillation section and/or recovery section according to the lowest energy consumption value. The disclosure involves a comprehensive and extensive energy saving and emission reduction system for chemical separation and purification process, and has achieved good environmental benefits.