-
公开(公告)号：US20250029684A1
公开(公告)日：2025-01-23
申请号：US18757981
申请日：2024-06-28
Inventor： WEN NIE , WENJIN NIU , QIU BAO , QIFAN TIAN , RUOXI LI , HUAJUN LIU , JING YANG , XIAOHAN ZHANG , JIE LIAN , LIDIAN GUO , CHENGYI LIU , CHANGWEI XU
IPC: G16C20/30 , G01N21/3563 , G01N24/08 , G16C20/20
Abstract: Disclosed is a microscopic comparison and experimental verification method for the wettability of similar surfactants on coal dust, comprising: collecting a coal sample on site from a mining area and analyzing the coal sample by infrared spectroscopy and nuclear magnetic resonance spectroscopy to obtain information on functional groups and carbon structure of coal molecules; S2: constructing a surfactant-coal molecule electrostatic interaction model and analyzing an orbital energy difference and an electrostatic potential difference between surfactant molecules and coal molecules, etc. S6. The invention provides a simple and effective idea for the selection of surfactants.
-
2.发明授权公开(公告)号：US12203374B1
公开(公告)日：2025-01-21
申请号：US18818624
申请日：2024-08-29
Inventor： Yanchun Yin , Tongbin Zhao , Xiufeng Zhang , Yang Chen , Xingyin Ma , Xinrong Zhang , Cao Man , Zhenlei Zhu
Abstract: A system and a method for monitoring overlying roof rock and coal pillar in gob-side entry are provided. The system includes top monitoring stations, coal pillar comprehensive monitoring stations, roof stress monitoring stations, and a master computer. Top monitoring stations are arranged in the crossheading to monitor the working face, coal pillar comprehensive monitoring stations are arranged in the upper roadway of the lower coal seam working face to monitor the coal pillars, and roof stress monitoring stations are arranged in the mining area main roadway to monitor the coal pillars. Monitoring the stress and deformation distribution of coal pillars in the goaf and the movement and failure process of overburden strata structure through the master computer control each monitoring station. The monitoring stations ensure that the overburden strata movement monitoring stations are still in working condition after the goaf is formed by mining in the working face.
-
公开(公告)号：US12134966B2
公开(公告)日：2024-11-05
申请号：US17786596
申请日：2020-11-26
Inventor： Zhijie Wen , Jing Huang , Peng Xiao , Jingkai Zhang , Hengzhong Zhu
IPC: E21B43/295
Abstract: An underground gasifier pre-control structure includes a flame retardant injection system. The flame retardant injection system includes a flame retardant injection shaft pipe channel drilled from ground to a coal seam and a flame retardant injection channel located in the coal seam. The flame retardant injection channel includes a first flame retardant injection channel and a second flame retardant injection channel at both sides of each gasifier and a third flame retardant injection channel located in a horizontal direction of an adjacent gasifier. The first flame retardant injection channel includes a horizontal section along a strike of the coal seam and a bypass section offset toward the gasifier. The flame retardant injection system forms a wet coal wall in the coal seam to achieve pre-control for the gasifier. The pre-control structure wets the coal masses at both sides of the gasifier and the gasifier does not spread toward both sides.
-
4.发明公开公开(公告)号：US20240361294A1
公开(公告)日：2024-10-31
申请号：US18571358
申请日：2023-01-09
Inventor： Chenglin TIAN , Qianting HU , Haitao SUN , Xusheng ZHAO
CPC classification number: G01N33/222 , G01N3/00 , G01N2203/0032
Abstract: A method of analyzing influencing factors of a contribution rate of elastic energy of a top plate during catastrophe of a coal body; the specific steps are: obtaining coal seam gas pressure; according to a drilling histogram, obtaining coal seam thickness and top plate thickness; taking a core on site and processing the core into a standard test piece; obtaining, by means of an indoor mechanical test, elastic moduli of the top plate and of gas-containing coal, respectively; substituting the obtained elastic moduli and thicknesses of the top plate and of the gas-containing coal into a calculation formula so as to obtain the contribution rate of the elastic energy of the top plate; and analyzing the influence of the contribution rate of the elastic energy of the top plate in the two situations of configuring the same thickness ratio and a different elastic modulus ratio and the same elastic modulus ratio and a different thickness ratio. In the described method, the role of the elastic energy of the top plate in a coal-gas dynamic disaster is fully considered while the influencing factors of the contribution rate of the elastic energy are analyzed. The method has important theoretical significance and practical engineering value. Moreover, the method has positive significance for the prediction and prevention of mining-induced rock burst-coal and gas outburst and other complex dynamic mining disasters.
-
公开(公告)号：US12091147B1
公开(公告)日：2024-09-17
申请号：US18739229
申请日：2024-06-10
Inventor： Ziliang Zhao , Bin Guo , Yuhang Zhang , Zhangu Wang , Jitai Yu , Jun Zhao , Qinglin Zhu
IPC: B63H21/20 , B63B17/00 , B63H21/14 , B63H21/17 , B63H21/21 , B63H23/30 , B63H23/34 , F01N3/02 , F02M31/20 , H01M8/04014 , H01M8/04082 , H01M8/04111 , H01M8/04119 , H01M8/0662 , H01M10/44 , H01M16/00 , H02K11/33
CPC classification number: B63H21/20 , B63B17/0027 , B63H21/14 , B63H21/17 , B63H21/21 , B63H23/30 , B63H23/34 , F01N3/0205 , F02M31/20 , H01M8/04014 , H01M8/04111 , H01M8/04126 , H01M8/04201 , H01M8/0662 , H01M10/44 , H01M16/006 , H02K11/33 , B63H2021/205 , H01M2220/20 , H01M2250/20
Abstract: A ship hydrogen hybrid power propulsion system and a method thereof are provided. The ship hydrogen hybrid power propulsion system includes a motor, a propeller, a power battery, an external motor controller, an internal motor controller, a hydrogen fuel cell, a hydrogen internal combustion engine, and a hydrogen storage tank. It combine the hydrogen fuel cell with the hydrogen internal combustion engine, and the hydrogen fuel cell is combined with the power battery and dynamically coupled with the internal motor and the external motor. Only a single hydrogen energy is needed, which is conducive to the layout and integration of the power system and achieves zero carbon emissions. Compared to the current dual motor power system, it has high integration, simpler power coupling, and a wider range of power output, making it particularly suitable for the high load and high-power output requirements of heavy-duty ships.
-
Patent Agency Ranking
6.发明公开公开(公告)号：US20240280451A1
公开(公告)日：2024-08-22
申请号：US18409775
申请日：2024-01-10
Applicant: FUJIAN UNIVERSITY OF TECHNOLOGY , SHANDONG UNIVERSITY OF SCIENCE AND TECHNOLOGY , FUZHOU UNIVERSITY
Inventor： GANG WANG , PENGJU WANG , PENG HE , XUEZHEN WU , KERUI FAN , CHANGSHENG WANG , ZHIJIA YOU , NING YANG , MINGRUI CHEN , LIANG ZHANG , FAN LV
CPC classification number: G01N3/24 , G01N1/44 , G01N33/24 , G01N2203/0048
Abstract: Disclosed are an underground engineering rock mass shear simulation test device, a test method and a test machine. The test method includes: setting different test conditions by a controller to perform cyclic shear test at high temperature, fracture shear seepage test, granite uniaxial compression test at high temperature and granite fracture shear test under constant normal stiffness boundary conditions at room temperature. The electric heating wire assembly, the fan assembly and the environmental box are combined to flexibly and uniformly heat the samples placed in the upper shear box and the lower shear box. In terms of shear-seepage test, this scheme proposes a second sample placing mechanism that realizes sealing through sealing capsule and sealing capsule pressing plate. It realizes stable sealing and facilitates monitoring and debugging of seepage parameters.
-
7.发明公开公开(公告)号：US20240264059A1
公开(公告)日：2024-08-08
申请号：US18691990
申请日：2023-04-10
Inventor： Weitao LIU , Haifeng WU , Xiangxi MENG , Jiyuan ZHAO , Yanhui DU , Lifu PANG , Mengke HAN , Yaohua LI , Weiguo SONG , Hao LI
IPC: G01N3/56
CPC classification number: G01N3/565 , G01N2203/0226 , G01N2203/0242 , G01N2203/0284 , G01N2203/0676 , G01N2203/0694
Abstract: The disclosure provides a rock stratum grouting water blocking test device and method under a mining coupling condition, and relates to the technical field of permeability testing. The device includes a solution box, a test box, a pressing plate replacement box, a grouting pump, a recovery pool and a water pump, the solution box is connected with the test box through a liquid injection pipe, the bottom of the test box is connected with the pressing plate replacement box, the pressing plate replacement box is connected with a bottom plate, and the bottom plate is connected with a control panel. The device can be used for testing the influence of the single-factor or multi-factor coupling action of temperature, water quality, water pressure, water flow and grouting pressure on the grouting effect.
-
公开(公告)号：US20240263711A1
公开(公告)日：2024-08-08
申请号：US18566716
申请日：2021-12-28
Inventor： Ziliang ZHAO , Zhenguo LU , Hongbin WANG , Qingliang ZENG , Changjiang LI , Long GAO , Hong SONG
CPC classification number: F16K11/22 , F16K31/041 , F16K31/535
Abstract: A volume liquid fixed-ratio multi-batch mixing valve includes a valve body, including a first inlet liquid chamber, a second inlet liquid chamber and a mixing chamber; a first valve core, controlling liquid inflow into the first inlet liquid chamber; a second valve core, controlling liquid inflow into the second inlet liquid chamber; a liquid drainage valve core, controlling liquid drainage; a rotary shaft includes a first impeller and a second impeller. The first impeller and the second impeller alternately control flow to the first inlet liquid chamber and the second inlet liquid chamber and to the second inlet liquid chamber and the mixing chamber. The first impeller and the second impeller are symmetrically about the rotary shaft; when the first inlet liquid chamber and the second inlet liquid chamber are communicated, the second valve core closes the second inlet liquid chamber and the mixing chamber.
-
公开(公告)号：US12055022B2
公开(公告)日：2024-08-06
申请号：US17219132
申请日：2021-03-31
Applicant: China University of Petroleum (East China) , Shandong University of Science and Technology
Inventor： Jian Hou , Kang Zhou , Qingjun Du , Yongge Liu , Yueliang Liu , Bei Wei , Dong Zhao , Zhibin An , Dejun Wu
Abstract: A method for realizing balanced displacement of crude oil by injection and production optimization coordinated chemical flooding which comprises the following steps: determining the median size and elastic modulus of viscoelastic particles according to the average permeability of the reservoir; optimizing the concentration ratio of the total concentration of the chemical agent; the physical parameters of each layer are counted, and the hierarchical system is combined according to the entropy weight algorithm and the cluster analysis method based on the gravity center method; the optimal section slug volume ratio of the single well injected with two slugs under the heterogeneity of the permeability of the strata is calculated; and the objective function is established by combining the coefficient of variation of remaining oil saturation, the effect of chemical flooding and the cost, and the numerical simulator is used to optimize the objective function.
-
公开(公告)号：US20240240646A1
公开(公告)日：2024-07-18
申请号：US18410173
申请日：2024-01-11
Inventor： Weiwei CUI , Fei YAO , Xiaonan WANG , Changlong RUAN , Haobo CAO , Laishun YANG , Guozhang CHANG , Cuiping WANG , Guangxi YUE
CPC classification number: F04D29/284 , F04D17/10
Abstract: A subsonic compressor, a rotor blade and a method for flow stability enhancement are provided. The subsonic compressor includes a hub and a casing, a tip clearance is formed between a tip of the rotor blade and an inner wall of the casing. The tip clearance is formed as a circumferential diverging leakage passage expanding from a pressure surface side of the rotor blade of the subsonic compressor at the tip to a suction surface side of the rotor blade at the tip.
-
-
-
-
-
-
-
-
-
Search Results
209
records
(took 0.134 seconds)
