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公开(公告)号：US11041344B1
公开(公告)日：2021-06-22
申请号：US16988702
申请日：2020-08-09
Applicant: Hunan University of Science and Technology
Inventor： Buyan Wan , Yongping Jin , Xiaojun Huang
Abstract: There is provided a wireline coring recovery system of a seafloor drilling rig, including: a winch, a rope, a submersible tension sensor, a cover, a main shaft and a catcher. One end of the rope is wound on the winch, and the other end of the rope is connected to an upper end of the catcher after the rope passes over a first pulley provided below the submersible tension sensor and then through a tapered hole on the cover. The catcher is provided in a center hole of the main shaft. The present application further provides a method of using the wireline coring recovery system. By the cooperation of the compression rod skewed teeth, the first rotating core skewed teeth, the second rotating core skewed teeth and the compression spring, the inner core barrel is readily recovered or released.
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公开(公告)号：US20210164300A1
公开(公告)日：2021-06-03
申请号：US16988702
申请日：2020-08-09
Applicant: Hunan University of Science and Technology
Inventor： Buyan WAN , Yongping JIN , Xiaojun HUANG
Abstract: There is provided a wireline coring recovery system of a seafloor drilling rig, including: a winch, a rope, a submersible tension sensor, a cover, a main shaft and a catcher. One end of the rope is wound on the winch, and the other end of the rope is connected to an upper end of the catcher after the rope passes over a first pulley provided below the submersible tension sensor and then through a tapered hole on the cover. The catcher is provided in a center hole of the main shaft. The present application further provides a method of using the wireline coring recovery system. By the cooperation of the compression rod skewed teeth, the first rotating core skewed teeth, the second rotating core skewed teeth and the compression spring, the inner core barrel is readily recovered or released.
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公开(公告)号：US11015294B2
公开(公告)日：2021-05-25
申请号：US16009176
申请日：2018-06-14
Applicant: HUNAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
Inventor： Hu Zhou , Dongdong Wang , Zhiling Qi , Xuan Liu , Zhihua Zhou , Qingquan Liu , Xiaofang Li
IPC: D21H17/67 , D21H17/57 , D21H17/07 , D21H19/72 , D21H19/62 , D21H25/02 , D21H25/06 , D21H19/38 , D21H27/00 , C01G23/047 , C08L75/06 , C08L75/08 , D21H13/20 , C09D175/08 , C09D175/06 , C08K3/22
Abstract: A method for preparing titanium dioxide-based synthetic paper capable of degrading organic pollutants, including: adding thermoplastic polyurethane particles and N,N-dimethylformamide or N,N-dimethylacetamide in a reactor, heating, and stirring to fully dissolve the thermoplastic polyurethane particles in a solvent to obtain a polyurethane solution; adding titanium dioxide powder having photocatalytic degradation property in the polyurethane solution, stirring uniformly to obtain a solid-liquid mixture, and standing for defoaming; uniformly coating the solid-liquid mixture onto a piece of release paper, soaking the release paper coated with the solid-liquid mixture into an aqueous solution of sliver nitrate having photocatalytic degradation property, completely curing the solid-liquid mixture to form a film, and soaking the release paper and the film into an aqueous solution of sodium chloride; drying, cooling, removing the release paper, and cutting the film to a proper size to obtain the titanium dioxide-based synthetic paper.
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公开(公告)号：US10947800B2
公开(公告)日：2021-03-16
申请号：US16833584
申请日：2020-03-28
Applicant: Hunan University of Science and Technology
Inventor： Buyan Wan , Xiaojun Huang , Yongping Jin
Abstract: The present disclosure discloses a pressure-retaining cap screwing and unscrewing device for a marine natural gas hydrate pressure-retaining rock-core barrel, wherein it comprises a cap-unscrewing chuck, a support cylinder, a pressure-retaining cap screwing and unscrewing head, a spring, a screwing and unscrewing shaft, and a pressure-retaining cap screwing and unscrewing sleeve, a reducer and a motor; an input shaft of the reducer is connected to the motor, an output shaft of the reducer is the screwing and unscrewing shaft which is a tubular structure with a plurality of guide holes provided on a side wall thereof. The device is simple in structure, compact, light in weight, and convenient to control, and the pressure-retaining cap can be discarded.
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公开(公告)号：US20250067896A1
公开(公告)日：2025-02-27
申请号：US18945450
申请日：2024-11-12
Applicant: HUNAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
Inventor： Guohong FU , Lijuan YANG , Shijie WANG , Hui CHENG , Songyuan FU , Tianchun YANG
Abstract: A transmission device for multi-frequency equal-amplitude non-harmonic electrical prospecting signal includes a single-chip microcontroller, a field programmable gate array (FPGA), a digital to analog conversion (DAC) module, an isolation amplifier circuit, a differential amplifier module, a digital power amplifier circuit, and a sensor module connected successively. A plurality of output ends of the digital power amplifier circuit is in cascade connection with a grounding electrode A and a grounding electrode B to form a loop with ground. An input end of the sensor module is connected with the digital power amplifier circuit. An output end of the sensor module is connected with the single-chip microcontroller.
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Patent Agency Ranking
公开(公告)号：US20250060502A1
公开(公告)日：2025-02-20
申请号：US18937177
申请日：2024-11-05
Applicant: HUNAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
Inventor： Hui CHENG , Guohong FU , Yan LIU , Xiuying LIAO
IPC: G01V3/08
Abstract: A device and method for measuring spectrum parameters of a formation outcrop and a rock mass are provided. An excitation signal is generated by a direct digital synthesis (DDS) module of a signal transmission portion. A constant voltage mode or a constant current mode is adopted for observation. After the signal passes through a constant voltage/constant current module, a constant high-voltage signal source or a current source signal with constant current output is formed and output to ground through grounding electrodes A and B to establish a stable observation signal field source. Geoelectric response information under the excitation of each frequency signal is acquired by a signal receiving portion through grounding electrodes M and N, processed and send out to a microcontroller unit (MCU) for display and storage. The spectrum parameters at different depths are observed by adjusting geometric dimensions of AB and MN.
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公开(公告)号：US20240360034A1
公开(公告)日：2024-10-31
申请号：US18769533
申请日：2024-07-11
Applicant: HUNAN UNIVERSITY OF SCIENCE AND TECHNOLOGY , HUNAN XIANGCHU XIANLU ENVIRONMENTAL PROTECTION TECHNOLOGY CO., LTD.
Inventor： Meixun PENG , Yuanpeng ZHANG , Qiming ZHAO , Wenwei LIU , Meilin CHEN
IPC: C04B7/42 , C04B7/43 , C04B7/47 , C04B7/52 , C04B111/00
CPC classification number: C04B7/424 , C04B7/434 , C04B7/47 , C04B7/527 , C04B2111/00017
Abstract: A method for preparing a general-purpose cement is provided. Raw materials containing all of SiO2, Al2O3, CaO, MgO and Na2O (or K2O) are mixed to obtain a raw meal, which is dried and ground into a raw meal powder. The raw meal powder is oxidatively calcined at no less than 1210° C. to reach a stable phase state, and rapidly cooled to obtain a clinker predominated by glass phase. The clinker is mixed with NaOH, KOH or a combination thereof and ground to obtain the general-purpose cement. Alternatively, the clinker is ground to obtain a clinker powder, which is mixed with an aqueous NaOH solution, an aqueous KOH solution or a combination thereof for use. The NaOH and/or KOH is/are added such that a weight ratio of NaOH+0.713KOH to the clinker powder is 0-0.03:1.
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公开(公告)号：US12130401B1
公开(公告)日：2024-10-29
申请号：US18531737
申请日：2023-12-07
Applicant: Hunan University of Science and Technology
Inventor： Jun Fang , Runlin Zhang , Wei Liang , Yongshun Han , Baiyan Wu , Wentao Yang
Abstract: A landslide risk monitoring and early warning method based on real 3D includes the following steps: S1, multi-source data fusion processing: collecting landslide-related data for an integrated fusion processing; S2, large-scale scene modeling, and analysis; S3, mesoscale scene modeling and analysis; S4, small-scale scene modeling and analysis; S5, landslide knowledge association and entity database construction; S6, landslide risk multi-scale dynamic assessment; S7, landslide multi-indicator monitoring and early warning. A landslide hazard monitoring and early warning system based on real 3D is also disclosed. The above-mentioned landslide risk monitoring and early warning method and system based on real 3D can realize different scale data acquisition and real 3D modeling of landslide geological disasters, establishment of full-factor real 3D landslide scene database, multi-scale spatial-temporal dynamic monitoring and analysis of landslide risk, and timely and intelligent multi-indicator early warning.
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19.发明授权公开(公告)号：US11644388B2
公开(公告)日：2023-05-09
申请号：US17677017
申请日：2022-02-22
Applicant: HUNAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
Inventor： Shuyi Yang , Lili Liao , Lingyun Qin , Shixiong Tang , Dong Ao , Juchuan Dai , Qihui Ling , Yong Guo , Zhewu Chen , Hongzhou Li
IPC: G01M17/04
CPC classification number: G01M17/04
Abstract: A system for integratedly testing damping performance of a hydro-pneumatic suspension vehicle, including a testing platform and a testing device. The testing device includes a sensor module, a data acquiring and processing module and a testing software. A method for integratedly testing damping performance of a hydro-pneumatic suspension vehicle is also provided. A calculation is performed by a testing software to optimize a sensor configuration. A signal is acquired and transmitted by the sensor module. The signal is acquired and processed by a data acquiring and processing module, and displayed and analyzed by the testing software.
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公开(公告)号：US20230003619A1
公开(公告)日：2023-01-05
申请号：US17941235
申请日：2022-09-09
Applicant: HUNAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
Inventor： Yongping JIN , Xiaobin HE , Youduo PENG , Ping LIU
Abstract: A micro core-drilling testing system for high-pressure environment, including: a pressure chamber, a micro core-drilling testing platform and a control device. The micro core-drilling testing platform includes a lower tray, a middle tray, a hydraulic system, a stroke cylinder, a rock sample plate, a rock sample block, a pressure compensation device and a drilling rig. The drilling rig is configured to carry out core-drilling operation. The hydraulic system is configured to provide power for the drilling rig. The pressure compensation device is configured to balance the pressure inside the pressure chamber and the hydraulic system.
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