MODULAR LARGE SPHERICAL TANK INTERNAL DETECTION DEVICE WITH SELF-LOCKING FUNCTION

    公开(公告)号:US20220349514A1

    公开(公告)日:2022-11-03

    申请号:US17629480

    申请日:2021-04-02

    摘要: The present disclosure discloses a modular large spherical tank internal detection device with a self-locking function, and belongs to the technical field of safety detection of large spherical tanks. The detection device includes a transmission group and a detection group. A movable pin is matched with the rotation of a second motor in an unconnected state, so that inner central shafts rotate to realize up-down movement of a detecting instrument in a vertical plane. The movable pin is matched with the rotation of a first motor in a connected state, so that the whole detection device rotates round a central axis of a large spherical tank to realize horizontal circumferential movement of the detecting instrument. All detection of a spherical surface inside the large spherical tank can be completed by combining two types of movement of the detecting instrument.

    Preparation Method of Zaleplon
    7.
    发明申请

    公开(公告)号:US20220259206A1

    公开(公告)日:2022-08-18

    申请号:US17568851

    申请日:2022-01-05

    IPC分类号: C07D487/04

    摘要: A preparation method of zaleplon is provided and belongs to the technical field of pharmaceutical chemistry. The preparation method adopts simple and cheap m-nitrobenzaldehyde and triethylamine as raw materials, and constructs a core structure of zaleplon with high efficiency and high selectivity through a one-pot series reaction without transition metal catalysis, thereby avoiding the formation of isomers, reducing the generation of by-products, increasing the yield of target products and reducing the synthesis cost; and after simple nitro reduction modification, zaleplon is prepared. The method has the advantages of short preparation route, mild reaction conditions and simple operation, so the method is suitable for industrial production.

    Method of constructing solid slippery surface

    公开(公告)号:US11952507B2

    公开(公告)日:2024-04-09

    申请号:US18454858

    申请日:2023-08-24

    摘要: The present invention discloses a method of constructing a solid slippery surface, belonging to the technical field of preparation of lubricating materials. The method of constructing a solid slippery surface comprises (1) constructing a metal oxide coating on the surface of a metal substrate by anodic oxidation, and then modifying the metal oxide coating using a low surface energy material to afford a superhydrophobic coating; and (2) fulling mixing photothermal nanoparticles and solid paraffin, followed by infusing the mixture onto the surface of the superhydrophobic coating to afford the solid slippery surface. The preparation method of the present invention is performed in a simple process and is environmentally friendly. The solid slippery surface constructed in the present invention has excellent photothermal and anti-icing performance, making some improvements in the field of copper metal anti-icing.