Itaconic acid-based multifunctional surfactant and preparation method therefor

    公开(公告)号:US12104140B2

    公开(公告)日:2024-10-01

    申请号:US18333514

    申请日:2023-06-12

    IPC分类号: C11D3/30 C11D1/00

    CPC分类号: C11D1/008

    摘要: The present disclosure relates to a polymerizable surfactant with reducibility and a preparation method thereof. The acid anhydride is reacted with a long-chain fatty alcohol to obtain an intermediate of an anhydride monoester, and then the obtained intermediate is reacted with the hydrochloride of dimethylaminohalogenated alkane, and a polymerizable surfactant with reducibility is obtained by post-processing. The polymerizable surfactant can not only play a role as a reactive emulsifier and copolymerize with monomers to obtain a soap-free emulsion, but also form a redox initiation system with peroxide, and conduct redox emulsion polymerization at room temperature. The soap-free emulsion synthesized by the polymerizable surfactant synthesized can greatly reduce the energy consumption in production, and can carry out one-step emulsion polymerization at normal temperature or low temperature to obtain an environment-friendly emulsion with a branched structure, thereby obtaining coatings with excellent water resistance, weather resistance, and impact resistance.

    GRAPHENE/COPPER COMPOSITE DEFORMED COPPER-CHROMIUM-ZIRCONIUM ALLOY LAYERED STRIP AND PREPARATION METHOD THEREOF

    公开(公告)号:US20240254593A1

    公开(公告)日:2024-08-01

    申请号:US18628786

    申请日:2024-04-07

    摘要: A method for preparing a graphene/copper composite deformed copper-chromium-zirconium alloy layered strip is provided. The method includes: obtaining a deformed copper-chromium-zirconium alloy strip by performing a solid solution treatment on a bulk copper-chromium-zirconium alloy, and performing a room temperature equal channel extrusion and a low temperature rolling on the bulk copper-chromium-zirconium alloy after the solid solution; obtaining a graphene/copper composite deformed copper-chromium-zirconium alloy strip by preparing a graphene/copper composite deposition liquid and performing a surface electrodeposition treatment on the deformed copper-chromium-zirconium alloy strip; obtaining the graphene/copper composite deformed copper-chromium-zirconium alloy layered strip with a rolling deformation of 65%-95% by stacking the graphene/copper composite deformed copper-chromium-zirconium alloy strips for 3-7 layers, and then performing a cold rolling, a single rolling deformation being 5%-10%; and performing a vacuum aging on the graphene/copper composite deformed copper-chromium-zirconium alloy layered strip.

    Devices and methods for pipeline leakage detection

    公开(公告)号:US12007304B2

    公开(公告)日:2024-06-11

    申请号:US18331131

    申请日:2023-06-07

    IPC分类号: G01M3/04

    CPC分类号: G01M3/04

    摘要: The present disclosure relates to a device and a method for pipeline leakage detection. The device for pipeline leakage detection includes a metal powder storage box, a plurality of ribs, and a signal collection and processing device. The metal powder storage box is ring-shaped and made of insulating material, which is configured to be sleeved on a pipeline. Metal powder is stored inside of the metal powder storage box, and inner and outer peripheral walls of the metal powder storage box are of mesh structure, which allows the metal powder to be ejected from the metal powder storage box under the push of leakage fluid of the pipeline. The plurality of ribs are made of insulating material, which are distributed evenly along an outer peripheral wall of the metal powder storage box, and fixed on the metal powder storage box respectively, and a plurality of coils arranged in a layer are configured inside the plurality of ribs. The signal collection and processing device is connected to each coil for collecting and monitoring electromagnetic signal of each coil and obtaining leakage parameters based on the abnormal signal when an abnormal signal occurs. The present disclosure can well detect whether the pipeline leaks and obtain the leakage parameters efficiently, portably, and accurately in the case of leakage.

    METHODS, SYSTEMS AND STORAGE MEDIA FOR PREDICTING OIL SPILL AREAS ON SEA SURFACES

    公开(公告)号:US20240160815A1

    公开(公告)日:2024-05-16

    申请号:US18510587

    申请日:2023-11-15

    IPC分类号: E21B43/01

    CPC分类号: E21B43/0122

    摘要: Embodiments of the present disclosure provide a method, system, and storage medium for predicting an area of oil spill on sea surface, the method for predicting the area of oil spill on sea surface includes: S1, obtaining a training dataset; S2, constructing an oil spill numerical model, and determining a predictive model by performing a predetermined processing on an initial predictive model based on simulation result data and the training dataset; S3, initializing the predictive model, determining a count of nodes of an input layer, an output layer, and a hidden layer; and S4, obtaining input data and inputting the input data into the predictive model in S2 to obtain an oil spill area on sea surface to be measured. The method, when used, has a small error and high accuracy, can save a lot of material and financial resources, and can be more widely used in real life.

    DEVICES AND METHODS FOR PIPELINE LEAKAGE DETECTION

    公开(公告)号:US20240085261A1

    公开(公告)日:2024-03-14

    申请号:US18331131

    申请日:2023-06-07

    IPC分类号: G01M3/04

    CPC分类号: G01M3/04

    摘要: The present disclosure relates to a device and a method for pipeline leakage detection. The device for pipeline leakage detection includes a metal powder storage box, a plurality of ribs, and a signal collection and processing device. The metal powder storage box is ring-shaped and made of insulating material, which is configured to be sleeved on a pipeline. Metal powder is stored inside of the metal powder storage box, and inner and outer peripheral walls of the metal powder storage box are of mesh structure, which allows the metal powder to be ejected from the metal powder storage box under the push of leakage fluid of the pipeline. The plurality of ribs are made of insulating material, which are distributed evenly along an outer peripheral wall of the metal powder storage box, and fixed on the metal powder storage box respectively, and a plurality of coils arranged in a layer are configured inside the plurality of ribs. The signal collection and processing device is connected to each coil for collecting and monitoring electromagnetic signal of each coil and obtaining leakage parameters based on the abnormal signal when an abnormal signal occurs. The present disclosure can well detect whether the pipeline leaks and obtain the leakage parameters efficiently, portably, and accurately in the case of leakage.

    METHODS AND SYSTEMS FOR LEAKAGE ANALYSIS OF URBAN PIPELINES AND STORAGE MEDIA

    公开(公告)号:US20230417622A1

    公开(公告)日:2023-12-28

    申请号:US18317053

    申请日:2023-05-12

    IPC分类号: G01M3/24 G06N3/08

    CPC分类号: G01M3/243 G06N3/08

    摘要: The embodiments of the present disclosure provide a method and a system for leakage analysis of an urban pipeline, and a storage medium. The method includes: obtaining sample signal data of an original signal and a corresponding first waveform diagram; obtaining at least two first components and a second component by processing the sample signal data based on preset iteration operations; determining a mutual information entropy of two adjacent first components in the at least two first components; determining high-frequency signal data of the original signal based on the mutual information entropy; determining an effective characteristic signal and a corresponding second waveform diagram based on the high-frequency signal data and the sample signal data; determining whether the urban pipeline leaks based on the second waveform diagram; and in response to that the urban pipeline leaks, determining a leakage aperture of the urban pipeline based on the effective characteristic signal.

    Double point-focusing solar energy collection apparatus

    公开(公告)号:US11692740B2

    公开(公告)日:2023-07-04

    申请号:US16614375

    申请日:2018-05-18

    发明人: Cheng Wang Ye Zhu

    摘要: A double point focusing solar energy collection apparatus of the present invention includes a heat collector, a secondary concentrator, and a bracket. The heat collector includes a primary concentrator and a heat collection tube, in which the primary concentrator has a focus point. The secondary concentrator has a focus point. The bracket supports the primary concentrator, the heat collection tube, and the secondary concentrator. The heat collection tube is located between the primary concentrator and the secondary concentrator and located on the focus points of the secondary concentrator and the primary concentrator. By adding the secondary concentrator, which is a rotating paraboloid reflector or circular Fresnel reflector, it can achieve low light loss and high heat collection efficiency, and erosion of the heat collection tube by sand, rain, and snow can be effectively prevented, thereby extending the lifetime of the heat collection tube effectively.