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公开(公告)号：US09869168B2
公开(公告)日：2018-01-16
申请号：US15323272
申请日：2015-12-09
发明人： Baiquan Lin , Yidou Hong , Chuanjie Zhu , Hao Yao
摘要： A method for thermal-displacement-type strengthened extraction in a drill hole, suitable for efficient gas extraction in a coal mine, the method comprising the following steps: arranging an extraction drill hole and a thermal displacement drill hole at intervals in a coal seam; continuously heating coal in the drill hole to form a stable temperature field by using a heat pipe; and significantly reducing gas adsorption potential by utilizing a heat effect, prompting gas desorption, and strengthening gas extraction. The method enlarges a range of effective pressure relief influence of a single hole, increases an extraction efficiency of gas in a coal seam by more than 40%, is safe, reliable and low-cost, and is easy to operate, saving both time and labor.
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公开(公告)号：US20170350833A1
公开(公告)日：2017-12-07
申请号：US15539835
申请日：2016-07-05
发明人： Yang JU , Jianqiang WANG , Ruidong PENG , Lingtao MAO , Hongbin LIU
CPC分类号： G01N23/046 , G01N2223/311 , G06T11/005 , G06T2207/10081 , G06T2211/428
摘要： An industrial CT scanning test system. The test system includes a test base, a multi-axis motion swivel table supported on the test base, a ray generator, an image acquisition device, and a fluid pressure loading device, and further includes a control device. The fluid pressure loading device includes at least one loading cylinder, and in case of performing a scanning experiment, the at least one loading cylinder is placed on a sample stage of the multi-axis motion swivel table together with a sample, and real-time loading of loads in different directions on the sample is performed according to test requirements.
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公开(公告)号：US20170350832A1
公开(公告)日：2017-12-07
申请号：US15539811
申请日：2016-07-05
发明人： Yang JU , Jianqiang WANG , Ruidong PENG , Lingtao MAO , Hongbin LIU
IPC分类号： G01N23/04
CPC分类号： G01N23/046 , G01N2223/311 , G01N2223/33 , G01N2223/3306 , G01N2223/40
摘要： A fluid pressure loading device applied to an industrial computed tomography scanning test system includes a body, a sample accommodating chamber and at least one fluid medium chamber being provided in the body. Each of the at least one fluid medium chamber is provided therein with a piston, the corresponding fluid medium chamber is separated into two chambers by the piston, one of the two chambers is in communication with an external hydraulic medium via oil lines provided in the body, the other of the two chambers is in communication with the sample accommodating chamber, and one end, facing towards the sample accommodating chamber, of the piston is extendable into the sample accommodating chamber. With the loading device, real-time loading of a test sample can be realized, thus improving a simulation accuracy of the system, and multi-directional loading of the sample can be realized.
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公开(公告)号：US09823307B2
公开(公告)日：2017-11-21
申请号：US14430381
申请日：2013-04-19
摘要： A node energy diagnosis method for a fault of a switched reluctance motor double-switch power converter. By detecting a transient value of a phase current of a switched reluctance motor double-switch power converter, a node energy standard deviation σ is calculated to be used as a fault characteristic quantity, and a main switch lower-tube short-circuit fault of the switched reluctance motor double-switch power converter is diagnosed by adopting a node energy standard deviation σ curve of the phase current of the switched reluctance motor double-switch power converter in the whole rotation speed range. It also can be applied in fault diagnosis when a main switch lower-tube short-circuit fault occurs in two phases or more than two phases of a switched reluctance motor double-switch power converter. It is applicable to switched reluctance motor power converters with various phase numbers and a double-switch structure, is durable, reliable in fault diagnosis and good in effect, and has good practicability, and wide application prospect.
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公开(公告)号：US09774202B2
公开(公告)日：2017-09-26
申请号：US14917500
申请日：2015-04-28
发明人： Gongbo Zhou , Zhencai Zhu , Houlian Wang , Yang Li , Wei Li , Guohua Cao
CPC分类号： H02J7/0052 , G01R31/3624 , G01R31/3651 , G01R31/3689 , H02J7/0021 , H02J7/0047 , H02J7/0072 , H02J7/345 , H02J2007/0096 , Y02B40/90
摘要： A monitoring system for charging of a super capacitor, comprising three parts, i.e. a power line, monomer super capacitor monitoring subsystems and a master monitoring system, wherein the master monitoring system comprises a charging circuit (2), a power supply unit (7), a master single chip microcomputer (4), a carrier communication module (3), a human-machine interface module (5), a storage unit (6) and an RS-232 module (8); and each of the monomer super capacitor monitoring subsystems comprises a monomer super capacitor (1), a power supply unit (7), a slave single chip microcomputer (11), a carrier communication module (3), a voltage, current and temperature detection unit (9) and a storage unit (6). The master monitoring system charges a super capacitor group through the power line and the charging circuit. The monitoring system can control the charge states of various monomer super capacitors, thereby avoiding the occurrence of an over-charging phenomenon.
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公开(公告)号：US09715479B2
公开(公告)日：2017-07-25
申请号：US14378629
申请日：2013-01-24
发明人： Hao Chen , Yan Liang , Dongsheng Yu
摘要： A memristor linear modeling method for a switched reluctance motor. A non-inverting operational amplifier circuit and an inverting operational amplifier circuit are employed to construct a switched reluctance motor linear phase inductance characteristic element.
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公开(公告)号：US09689258B2
公开(公告)日：2017-06-27
申请号：US15108727
申请日：2014-11-19
发明人： Liqiang Ma , Zhiyuan Jin , Xiaomin Yu , Fei Wang , Hai Sun
IPC分类号： E21F15/00
CPC分类号： E21F15/00
摘要： A water-preserved-mining roof-contacted filling method for controlling fissure of overlying strata and surface subsidence. The method is suitable for controlling fissure of overlying strata and surface subsidence in water-preserved-mining of a mine. A sensor is mounted at the top of a goaf of a filling working face where water-preserved-mining is carried out, and a filling body that is filled is monitored through a stress display device so as to determine whether the goaf is roof-contacted or separated. When the filling body is separated after roof-contacted, the goaf is filled for the second time so as to be roof-contacted fully, so that the purpose of controlling fissure of overlying strata and surface subsidence can be achieved, and protective mining of water resources of the mine can be realized at last. The method is simple and targeted, and has strong operability and high efficiency.
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68.发明授权公开(公告)号：US09689257B2
公开(公告)日：2017-06-27
申请号：US14418642
申请日：2014-01-22
发明人： Guohua Cao , Jinjie Wang , Zhencai Zhu , Weihong Peng , Yandong Wang , Lei Zhang , Gang Shen , Shanzeng Liu
摘要： A guide rail rope deflection inhibition mechanism and method for a parallel soft cable suspension system in ultradeep vertical shaft construction. The guide rail rope deflection inhibition mechanism comprises a T-shaped installation support base, a rotating frame, a hydraulic support rod, and a chuck. The T-shaped installation support base comprises a vertical support rod and a horizontal support rod. The hydraulic support rod comprises an upper hydraulic support rod and a lower hydraulic support rod. The rotating frame comprises an upper Y-shaped frame and a lower Y-shaped frame. The chuck comprises an upper chuck and a lower chuck. The guide rail rope deflection inhibition method treats two guide rail rope deflection inhibition mechanisms as one group, and arranges at least two groups along the vertical direction on the shaft wall. While guaranteeing the smooth sliding of a direction guiding frame, the freedom of the guide rail rope part is restrained by the chuck, thereby enhancing the stability and safety of hoisting containers.
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公开(公告)号：US09543872B2
公开(公告)日：2017-01-10
申请号：US14344887
申请日：2013-01-24
发明人： Hao Chen
CPC分类号： H02P9/009 , H02P9/02 , H02P25/0925
摘要： A control method for a switched reluctance generator employing dual switched-mode power converters does not require a position sensor. In the excitation stage, the upper tube and lower tube of the main switch of a phase in the power converter are switched on, and the phase current is detected. When the phase current rises to a preset threshold, the upper tube or lower tube of the main switch of the phase is switched off, changing the phase of the switched reluctance generator into a zero voltage natural freewheeling state. When the phase current drops to the valley value, the rotor position is the end position of maximum phase inductance of the phase. This rotor position is used as the switch-off position of the main switch of the phase of the switched reluctance generator, and the upper tube and lower tube for the main switch of the phase are switched off.
摘要翻译： 采用双开关电源转换器的开关磁阻发电机的控制方法不需要位置传感器。 在励磁阶段，电源转换器中相的主开关的上管和下管接通，检测相电流。 当相电流上升到预设阈值时，该相的主开关的上管或下管被切断，将开关磁阻发生器的相位改变为零电压自然续流状态。 当相电流下降到谷值时，转子位置是相位最大相电感的最终位置。 该转子位置用作开关磁阻发生器相位主开关的断开位置，并且该相的主开关的上管和下管被切断。
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公开(公告)号：US09494037B2
公开(公告)日：2016-11-15
申请号：US14891288
申请日：2014-01-22
发明人： Jixiong Zhang , Nan Zhou , Qiang Zhang , Jiwei Guo , Xiaoming Shen , Feng Ju , Haiqiang Jiang
CPC分类号： E21F15/02 , E21C41/04 , E21C41/16 , E21D23/0481
摘要： In an inclined layered solid-filling mining method in an ultrathick coal layer, tunnels and equipment are arranged according to a solid-filling mining method. An artificial roof for a lower layer is formed by metal meshes and bamboo fences of a first layer a solid-filling mining method. The method is repeated, until the entire ultrathick coal layer is finished. The method is repeated forming additional roofs for subsequent layers.
摘要翻译： 在超薄煤层倾斜层状固体填充开采方法中，根据固体填充开采方法布置隧道和设备。 用于下层的人造屋顶由第一层的金属网和竹栅栏形成为固体填充开采方法。 重复该方法，直到整个超薄煤层完成。 该方法重复形成后续层的附加屋顶。
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