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公开(公告)号：US11821874B1
公开(公告)日：2023-11-21
申请号：US18308753
申请日：2023-04-28
Inventor： Xufei Gong , Lexin Chen , Yueying Zhang , Weiyao Guo , Chengguo Zhang , Yulong Zhang
CPC classification number: G01N3/04 , G01N3/24 , G01N2203/0025 , G01N2203/0098 , G01N2203/0226
Abstract: A dynamic load shearing test device and method based on a hopkinson bar system are provided in this disclosure, which relates to the technical field of rock detection tests. The device according to the disclosure includes a bearing frame, a carriage, a sample holding unit, a pressure environment generating unit, a sample switching unit, an incident bar and a transmission bar, and the test method includes following steps: test device assembly, device leveling, pre-test preparation, test conducting, sample angle switching and test device resetting. The disclosure has advantages that the cylindrical sample can be quickly fixed, a required temperature environment can be well maintained, the cylindrical sample can be better fixed in a high-pressure environment, rotation of the cylindrical sample is not hindered in a low-pressure environment, switching of test positions is facilitated, and test efficiency can be accelerated.
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62.发明公开公开(公告)号：US20230280251A1
公开(公告)日：2023-09-07
申请号：US18317198
申请日：2023-05-15
Inventor： Weiyao GUO , Yueying ZHANG , Lexin CHEN , Dongxiao ZHANG , Yunliang TAN , Tongbin ZHAO
Abstract: A three-dimensional dynamic and static load test system for simulating deep roadway excavation and a method thereof are provided, which relates to the technical field of indoor simulation testing in underground engineering. The system includes a mobile platform, a box body, a support frame, a roadway excavation device, and a data monitoring unit. The system and method of the disclosure can reproduce the whole process of roadway excavation, simulate the multi-directional loading of deep roadway, and restore the real stress state of deep roadway under the influence of dynamic and static load superimposed disturbance. The problem of insufficient research under the condition of unidirectional static loading and lack of multi-directional dynamic and static loading in current large-scale experimental devices has been solved, and the stress and deformation of the surrounding rock of the roadway are reflected in real-time through the data monitoring unit.
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63.发明授权公开(公告)号：US11745562B1
公开(公告)日：2023-09-05
申请号：US18179697
申请日：2023-03-07
Inventor： Shurong Lei , Song Xin , Ziliang Zhao , Xiaoting Zhang , Fangzi Hao , Xu Li , Junlong Liu , Yu Wang
IPC: B60H1/00
CPC classification number: B60H1/00899 , B60H1/00278 , B60H1/00392 , B60H1/00485
Abstract: A coupling thermal management system of a pure electric vehicle based on phase change heat storage. The system includes a refrigerant circuit and a coolant circuit, where heat exchange can be achieved between the refrigerant circuit and the coolant circuit through a plate type heat exchanger. The refrigerant circuit includes an electric compressor, an inside-vehicle heat exchanger, an outside-vehicle heat exchanger, a bidirectional electronic expansion valve, a four-way directional valve, a gas-liquid separator, first three-way valve, a first gate valve, a second gate valve, a plate type heat exchanger and a refrigerant tube. The coolant circuit includes a battery pack, a phase change material, a heat storage heat exchanger, a water pump, a second three-way valve, a third three-way valve, a fourth three-way valve and a coolant tube. The plate type heat exchanger is also included in the coolant circuit.
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64.发明公开公开(公告)号：US20230272696A1
公开(公告)日：2023-08-31
申请号：US18114300
申请日：2023-02-27
Inventor： Bin GONG , Yujing JIANG
CPC classification number: E21B41/0099 , E21B7/046 , E21B33/13 , E21B49/00 , E21B33/12
Abstract: Disclosed is a method for deep-sea extraction of natural gas hydrates with reservoir top control and sand prevention, belonging to the technical field of natural gas hydrates mining. A grouting layer is constructed between a natural gas hydrates reservoir layer and an upper overburden layer by adopting a multi-branch horizontal well process, a vertical shaft is drilled further into the natural gas hydrates reservoir layer after the grouting layer is stabilized, and a mining device and a bottom plugging device are installed in the vertical shaft according to a thickness of the reservoir.
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公开(公告)号：US20230138777A1
公开(公告)日：2023-05-04
申请号：US17517825
申请日：2021-11-03
Inventor： Hongzhi CUI , Na WEI , Xiaojie SONG , Ruiqi XU , Zhenkui LI , Minggang ZHAO , Kunyu SUN , Qi LI
IPC: C02F1/14 , C23C16/26 , C23C16/513 , C01G41/02 , C01G53/00
Abstract: A photothermal seawater desalination material with a multi-stage structure and a preparation method and application thereof. The photothermal seawater desalination material includes a light-absorbing material having a C/WO3-x heterogeneous junction, which is obtained by depositing a nano-C material on a porous metal foam material using plasma enhanced chemical vapor deposition (PECVD), and then synthesizing WO3-x with plasma resonance effect by a solvothermal reaction.
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Patent Agency Ranking
公开(公告)号：US11530958B2
公开(公告)日：2022-12-20
申请号：US17633083
申请日：2021-08-11
Inventor： Lijun Li , Tianzong Xu , Qian Ma , Zhaochuan Zhang , Jiajun Shen
Abstract: An intelligent optical fiber tactile sounding system and a method thereof, and belongs to the field of intelligent optical fiber sensing. The system includes a flexible optical fiber tactile sensing array, a photoelectric detection system, an intelligent pressure analysis software and an acoustic emission system; a small-scale distributed tactile sensing array is constructed by embedding a fiber-core mismatched optical fiber interferometric sensor into a flexible substrate material and performing sensing region division for an asymmetrical structure with an optical fiber structure as a delimiting line; a tactile sensor transmits tactile signals to the photoelectric detection system in the form of optical signals, the photoelectric detection system inputs these pressure signals into the intelligent pressure analysis software to determine a region and a size of a tactile source, and then sends an instruction to the acoustic emission system to enable the acoustic emission system to emit different sounds.
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公开(公告)号：US11499897B2
公开(公告)日：2022-11-15
申请号：US17715752
申请日：2022-04-07
Inventor： Yanchun Yin , Tongbin Zhao , Yunliang Tan , Minglu Xing , Yubao Zhang , Kai Fang , Chen Yan
Abstract: The present invention discloses a deformation controllable compression ring-based mechanical test system for rocks with variable stiffness and a test method thereof, which comprises a loading device, a variable stiffness regulating device, a data monitoring system and a controlling system; the energy storing spring in the loading device allows the rebounding direction of the loading device to be contrary to the strain direction of the test-piece, which eliminates the energy supplement of the loading device to the test-piece and realizes the loading of an oversized stiffness on the test system; the variable stiffness regulating device precisely regulates the loaded stiffness by regulating the loaded stiffness of the test system according to test requirements, which realizes the test of loading different stiffness on the same test system and avoids the influences of differences to loading parameters between different test systems on the test results.
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公开(公告)号：US11441982B2
公开(公告)日：2022-09-13
申请号：US17575150
申请日：2022-01-13
Inventor： Weiyao Guo , Yan Tan , Tongbin Zhao , Yunliang Tan , Dongxiao Zhang
Abstract: The disclosure provides a variable dip fault slip simulation test method, which relates to the technical field of indoor simulation test of underground engineering. The variable dip fault slip simulation test method of the disclosure adopts a sample device and a loading device, which includes the following steps: Step 1. sample preparation; Step 2. sample assembly; Step 3. loading preparation; Step 4. sample loading. The variable dip fault slip simulation test method of the disclosure can prepare rock like samples with different dip interfaces, simulate the slip failure process of faults with different dip angles, as well as the normal dip slip and reverse dip slip of faults, facilitate the operation of slip simulation test, and collect test data automatically and accurately.
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69.发明申请公开(公告)号：US20220221384A1
公开(公告)日：2022-07-14
申请号：US17580358
申请日：2022-01-20
Inventor： Shanchao HU , Jing ZUO , Jianguo NING , Jun WANG , Yong GUO , Wenkai RU
IPC: G01N3/08
Abstract: The disclosure discloses an automatic simulation test bench and a test method for similar materials of top-coal caving mining. Wherein, the test bench includes a test bench base, a coal seam and strata simulation module, a coal releasing simulation module, a material recovery module, automatic mixing system and a central control system. The disclosure adopts modular construction to meet the requirements of similar material simulation test of top-coal caving mining under different geological conditions and mining technology to the greatest extent. The disclosure adopts automatic control, reduces the working intensity and operation difficulty of the test personnel, and reduces the influence of human factors on the test results. The disclosure adopts a lifting structural design, so as to meet the requirements of similar simulation test of top-coal caving mining under different mining and caving ratios.
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70.发明申请公开(公告)号：US20220213773A1
公开(公告)日：2022-07-07
申请号：US17627117
申请日：2020-07-23
Inventor： Gang WANG , Zhiyuan LIU , Weimin CHENG , Xiangjie QIN , Jiuyuan FAN , Lulu SUN , Zhen LIU , Guanhua NI , Yanbin YU , Yixin LIU , Qiming HUANG
Abstract: A deep low-permeability high gassy seam drilling-slitting-sealing-fracturing drilling device includes a drilling control system, a high-pressure water power system, a water pressure grading control system and a fracturing and sealing control system. The drilling control system adjusts a drilling direction a water supply pressure of the drill rod, the high-pressure water power system supplies high-pressure water with different pressures to the device, and the water pressure grading control system ensures that a water pressure for flushing drill cuttings is less than 5 MPa, a water pressure for slitting in a direction perpendicular to a length of the drill rod is 25-35 MPa, a water pressure for sealing with a borehole sealing capsule is 35-40 MPa, and a water pressure for further pressure relief and permeability increasing of a coal seam is 40-50 MPa. The fracturing and sealing control system controls borehole sealing and hydrofracturing operations.
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