Patents Assigned to Xi'an Jiaotong University
  • Patent number: 11443909
    Abstract: The present disclosure discloses a liquid arc extinguish chamber for direct current breaking. The liquid arc extinguish chamber for direct current breaking includes a cavity, a fixed contact and a moving contact. A liquid medium is sealed in the cavity. The fixed contact is hermetically fixed in the cavity. One end of the fixed contact is fixed in the cavity, and the other end of the fixed contact is connected with an outlet terminal A1. The moving contact is movably sealed in the cavity. One end of the moving contact may adjacently abut against or be in contact with the fixed contact, and the other end of the moving contact is connected with an outlet terminal A2.
    Type: Grant
    Filed: December 12, 2019
    Date of Patent: September 13, 2022
    Assignee: XI'AN JIAOTONG UNIVERSITY
    Inventors: Mingzhe Rong, Yifei Wu, Fei Yang, Yi Wu, Chunping Niu
  • Patent number: 11396683
    Abstract: A control system and method for dry centrifugal granulation of liquid slag are provided. The control system includes a granulator cold-air control unit and a feeding unit. The granulator cold-air control unit includes a granulator, a rotating shaft, a motor, and a cold-air supply unit. The granulator is fixed to the motor; the cold-air supply unit includes a shaft cooling air channel and an annular cooling air channel; the shaft cooling air channel consists of an inner duct sleeve and a shaft sleeve; the annular cooling air channel consists of the inner duct sleeve and an outer duct sleeve arranged at periphery of the inner duct sleeve, which have different external diameters; the feeding unit includes a slag dropping pipe arranged above the granulator; a sliding gate is arranged at a lower section of the slag dropping pipe, and an accident diversion spout is equipped.
    Type: Grant
    Filed: April 13, 2017
    Date of Patent: July 26, 2022
    Assignee: XI'AN JIAOTONG UNIVERSITY
    Inventors: Shuzhong Wang, Xi Zhang, Liwei Ma, Pengfei Yu, Jianjun Cai, Zhongqing Zhang, Lin Chen, Haiyu Meng, Zefeng Jing
  • Patent number: 11396827
    Abstract: A control method for optimizing a solar-to-power efficiency of a solar-aided coal-fired power system under off-design working conditions is provided. Through reading the relevant information of the solar collecting system, the coal-fired power generation system, the environmental conditions, and the working conditions of the solar-aided coal-fired power system, the water flow rate range able to be heated by the solar collecting unit and the solar-coal feedwater flow distribution ratio range are determined; through establishing the relationship between the solar-to-power efficiency and the solar-coal feedwater flow distribution ratio, the solar-coal feedwater flow distribution ratio is regulated, so that a flow rate of water entering the solar collecting system to be heated is controlled, thereby maximizing the solar-to-power efficiency and improving the economy of the solar-aided coal-fired power system.
    Type: Grant
    Filed: January 25, 2021
    Date of Patent: July 26, 2022
    Assignee: XI'AN JIAOTONG UNIVERSITY
    Inventors: Hui Yan, Ming Liu, Xin Li, Daotong Chong, Junjie Yan
  • Patent number: 11392634
    Abstract: An image preprocessing module is provided by the present invention to pre-process pathological images through superpixel segmentation in the cloud infrastructure, and meanwhile stores the boundary thereof by using the binary image; and performing multi-user data recording by the data recording module, so that the user can collaborate on image annotation; through the front-end interaction module, the capturing action of the user and displaying the pathological image; through the back-end processing module, the responding to the request sent by the front-end interaction module and completing the annotation of the data and the suggesting possible annotation sub-regions to the users. Through the effects achieved by the above modules, the present invention accomplishes the purpose of multi-user collaborative and convenient pixel-level annotation on pathological images via a webpage.
    Type: Grant
    Filed: March 26, 2020
    Date of Patent: July 19, 2022
    Assignee: XI'AN JIAOTONG UNIVERSITY
    Inventors: Chen Li, Pargorn Puttapirat, Haichuan Zhang
  • Patent number: 11384408
    Abstract: A surface treatment method of metallic materials provided by the present invention includes steps of: (S1) cleaning a surface of an initial metallic material to be treated, and then drying; and (S2) placing the dried metallic material in a heating furnace, adjusting a vacuum degree inside the heating furnace to a preset value under the protection of a mixed flowing gas of oxygen and an inert gas, heating and preserving, cooling to room temperature by furnace cooling, and completing the surface treatment of the metallic material to be treated, wherein the heating temperature is larger than the destruction temperature of the native oxide at the surface of the initial metallic material. The present invention is able to increase the surface hardness of the metallic material within a large depth, and has the advantages of low processing cost, high efficiency, good controllability, convenient operation and low surface contamination for the workpiece.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: July 12, 2022
    Assignee: XI'AN JIAOTONG UNIVERSITY
    Inventors: Weizhong Han, Pingjiong Yang
  • Patent number: 11371532
    Abstract: An inlet collector for a centrifugal fan and a centrifugal fan are provided. By arranging a tragus-shaped section in a guiding section, reverse flow caused by intersection of inlet leakage flow at a volute tongue side and inlet airflow is blocked by the tragus-shaped structure in movement process, and the leakage flow no longer collide with the inlet airflow. An inner curved surface of the tragus-shaped section controls backflow to change smoothly along an inner wall surface of the tragus-shaped section and re-enter a volute for circulation. A tragus profile is adopted to guide the airflow to change more smoothly in the velocity direction near the wall of the guiding section, so as to effectively reduce the impact of the inlet airflow on the guiding section. By using the inlet collector, energy loss of airflow is reduced, vortex formation is suppressed, and aerodynamic performance and fan noise are improved.
    Type: Grant
    Filed: January 18, 2022
    Date of Patent: June 28, 2022
    Assignee: XI'AN JIAOTONG UNIVERSITY
    Inventors: Xiaomin Liu, Chenye Tian, Jiahao Wang, Guang Xi
  • Patent number: 11365653
    Abstract: A power generation device and method using organic working fluid for circulation without pump and valve are invented, the principle is able to be called flash jet natural cycle. The flash injection tube, the magnetic sphere motion tube and the storage tank are connected to form the main loop. The finned tube and the storage tank are connected to form the cooling loop. The working fluid is heated in the flash injection tube by low-temperature heat source, and is cooled in the finned tube by air or water. The gravity and flash force jointly drive the flash jet natural cycle. The lower magnetic ball acts as a one-way valve for supplying liquid to the flash injection tube. The upper magnetic ball acts as a valve and a rotor driven by the flash force and gravity to move linearly and produce electricity.
    Type: Grant
    Filed: February 10, 2021
    Date of Patent: June 21, 2022
    Assignee: XI' AN JIAOTONG UNIVERSITY
    Inventors: Qincheng Bi, Jinle Zhao, Fuqiang Huo, Tao Zhang
  • Patent number: 11363996
    Abstract: The present application discloses an early warning method, device and system of sudden death. The method includes: 1. extracting 6 indicators of 4 types of physiological information 2. performing abnormality detection on the physiological information and calculating an early warning level, proceeding to step 3 when a result of the abnormality detection indicates abnormal, and continuing the abnormality detection when the result of the abnormality detection indicates normal; and 3. producing sound, light and vibration alarms, in which an alarm device is driven to produce sound, light and vibration and provide a corresponding early warning level. A higher early warning level indicates a higher risk of sudden death.
    Type: Grant
    Filed: December 26, 2018
    Date of Patent: June 21, 2022
    Assignee: XI'AN JIAOTONG UNIVERSITY
    Inventors: Xiang Chen, Jin Li, Zhongbo Bai, Xu Zhang, Huakui Yang, Peiyuan Huang
  • Patent number: 11359807
    Abstract: A control method for optimizing generated power of a solar-aided coal-fired power system under off-design working conditions sets maximizing generated power without changing main steam flow rate as a control goal. A solar-coal feedwater flow distribution ratio is adjusted to adjust water flow rate heated by a solar heat collection system, so as to achieve the control goal. Control steps include reading relevant information; calculating the water flow rate range heated by the solar heat collection system, and an applicable solar-coal feedwater flow distribution ratio range; establishing a correspondence between the generated power and the solar-coal feedwater flow distribution ratio within this range; selecting a solar-coal feedwater flow distribution ratio corresponding to the maximum generated power; and adjusting the water flow rate entering the solar heat collection system to an optimized value. The present invention can flexibly control the solar-coal coupling and improve the economy.
    Type: Grant
    Filed: January 25, 2021
    Date of Patent: June 14, 2022
    Assignee: XI'AN JIAOTONG UNIVERSITY
    Inventors: Hui Yan, Daotong Chong, Xin Li, Ming Liu, Junjie Yan
  • Patent number: 11346781
    Abstract: An optical fiber laser induced breakdown spectroscopy detection device and a detection method are provided. The device comprises an optical fiber LIBS detector and a master control detection system. The master control detection system is installed in the master control room of a nuclear power plant, and the optical fiber LIBS detector is configured to perform detection in a pipeline. The master control detection system and the optical fiber LIBS detector are connected to each other via the transmission optical fiber and the control signal line. The remote on-line detection of the positioning and fixed point of the designated area of the inner wall of the main pipeline of the nuclear power plant can be detected on line in the master control room of the nuclear power plant.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: May 31, 2022
    Assignees: XI'AN JIAOTONG UNIVERSITY, SUZHOU NUCLEAR POWERRESEARCH INSTITUTE CO., LTD
    Inventors: Jian Wu, Zhi Zhang, Yan Qiu, Xingwen Li, Yuhua Hang, Tao Liu, Fei Xue
  • Patent number: 11319864
    Abstract: A thermal management system for a hybrid vehicle includes an expander, a heat exchanger, a condenser, a water tank, a pump, a heat exchanger for a battery pack, a heat exchanger for a motor, a water cooling jacket for an engine, an exhaust gas heat exchanger for an engine, a valve, and so on. According to the present disclosure, in thermal management loops, different operating modes of the system can be switched by controlling the open-close and opening of the valve. In this way, a series/parallel connection of thermal management branches of an electrical system and an engine system is fulfilled to meet the requirements for heat dissipation and preheating, and flux in each branch is regulated to fulfill thermal management according to different driving conditions of a hybrid vehicle.
    Type: Grant
    Filed: November 24, 2020
    Date of Patent: May 3, 2022
    Assignee: Xi'an Jiaotong University
    Inventors: Huan Xi, Yiwei Hao, Mingjia Li, Jinhua Wang, Zhuo Ma
  • Publication number: 20220119285
    Abstract: The present disclosure discloses a system and a method for solar-driven photothermal seawater desalination and ion electroosmosis power generation. In the system, a first reservoir is provided with a first electrode immersed in seawater; a second reservoir is connected to the first reservoir via a cation selective nanofilm; a third reservoir is provided with a second electrode immersed in seawater, and the third reservoir is connected to the second reservoir via an anion selective nanofilm; and an adjustable sun-visor shields the cation selective nanofilm to form a first preset part of solar illumination and shields the anion selective nanofilm to form a second preset part of the solar illumination. Therefore, the cation selective nanofilm and the anion selective nanofilm are each under an asymmetric illumination to generate a temperature gradient.
    Type: Application
    Filed: September 27, 2021
    Publication date: April 21, 2022
    Applicant: Xi'an Jiaotong University
    Inventors: Zhiguo QU, Qian LIU, Jianfei ZHANG, Qinlong REN
  • Patent number: 11307126
    Abstract: The present invention discloses an experimental device for cavitation corrosion of liquid metal, comprising a stand, and a vibration device and a lifting and rotating device separately arranged on the stand, wherein a heating device for experimental use is arranged on the vibration device; a furnace lid with a sealing ring is arranged above the heating device; a stirring mechanism is arranged on the furnace lid; the stirring mechanism is connected to a chunk below the furnace lid; a clamp is connected below the chuck, and the clamp is connected to a sample; the furnace lid is connected to the lifting and rotating device; the lifting and rotating device can control the movement of the furnace lid so that the sample is placed in the heating device; the lifting and rotating device, the stirring mechanism, the heating device and the vibration device are connected to a control system.
    Type: Grant
    Filed: January 14, 2020
    Date of Patent: April 19, 2022
    Assignees: XI'AN JIAOTONG UNIVERSITY, JIANGSU FEILU HEAVY INDUSTRY MACHINERY MANUFACTURING, Beijing University of Technology
    Inventors: Shengqiang Ma, Jiaqi Wang, Ping Lv, Zongliang Zhang, Jiandong Xing, Hanguang Fu, Yimin Gao
  • Patent number: 11306799
    Abstract: An inner roller feeding device for a baseplate of a counter-roller driving power spinning equipment includes an inner roller column, an inner roller top plate, an inner roller upper plate, an inner roller lower plate, a cam, a cam mounting cylinder, inner rollers, inner roller shafts, a feed screw, a servo motor and a baseplate. According to the inner roller feeding device, a brake motor serves as a power source, the inner roller is driven by the cam through a worm gear drive to feed along a radial direction of a workpiece, such that an inner roller mechanism is small in size, large in adjustment range and high in positioning precision.
    Type: Grant
    Filed: July 15, 2020
    Date of Patent: April 19, 2022
    Assignee: Xi'an Jiaotong University
    Inventors: Shengdun Zhao, Fan Li, Chengcheng Zhu, Shuqin Fan, Hong Jiang
  • Patent number: 11298777
    Abstract: A powder-enhanced friction stir rivet welding device includes a friction stir rivet welding spindle, a C-shaped frame and a tooling platform. The friction stir rivet welding spindle includes a rotating mechanism, a feed mechanism, a vibration-rotation mixing mechanism and a powder feeding mechanism. The friction stir rivet welding spindle is configured to realize rotation and feed movements of a rivet and feeding and mixing of a powder. The C-shaped frame is configured to fix the friction stir rivet welding spindle and the tooling platform. The tooling platform includes a force sensor, a sensor indenter, a tooling mould and a tooling platen. The tooling platform is configured to clamp a workpiece to be riveted and welded, and measure a rivet welding force of the friction stir rivet welding spindle in real time.
    Type: Grant
    Filed: June 30, 2021
    Date of Patent: April 12, 2022
    Assignee: XI'AN JIAOTONG UNIVERSITY
    Inventors: Shengdun Zhao, Peng Zhang, Yongfei Wang, Jingxiang Li, Shuqin Fan
  • Patent number: 11292045
    Abstract: A full-electric servo vertical three-counter driving power spinning device includes a rack, and the rack includes a baseplate. A workpiece active rotating mechanism and an inner roller feeding mechanism are provided on the baseplate, an outer roller feeding mechanism is provided on the rack; the outer roller feeding mechanism is provided with an outer roller active rotating mechanism; the outer roller active rotating mechanism includes an outer roller active rotating motor and an outer roller, and the inner roller feeding mechanism includes an inner roller. A stress state of a cylinder material by adopting a combined method of an active rotation of a roller and an active rotation of a workpiece turntable is significantly different from that by a passive spinning of a counter-roller, thus improving a thinning rate of a wall thickness of a cylindrical member and a hardening properties of materials.
    Type: Grant
    Filed: July 15, 2020
    Date of Patent: April 5, 2022
    Assignee: Xi'an Jiaotong University
    Inventors: Shengdun Zhao, Fan Li, Chengcheng Zhu, Shuqin Fan, Hong Jiang
  • Patent number: 11289280
    Abstract: A high voltage relay resistant to instantaneous high-current impact is disclosed. The high voltage relay includes an electromagnet system, a control system, a contact system, and a base support. In various embodiments, an electromagnetic force generated by the contact system is used to resolve a problem of contact separation caused by an electric repulsion force generated by an instantaneous high-current.
    Type: Grant
    Filed: April 24, 2020
    Date of Patent: March 29, 2022
    Assignees: Xi'an Jiaotong University, Huawei Technologies Co., Ltd.
    Inventors: Chunping Niu, Yi Wu, Xufeng Kang, Fei Yang, Mingzhe Rong, Guangchao Yan, Qingyin Fang
  • Patent number: 11287194
    Abstract: The present discloses a gas-gas high-temperature heat exchanger, including a shell (12), a tube sheet (5), a low-temperature gas inlet pipeline (6) and an outlet pipeline (7), and a high temperature gas outlet (8), the tube is divided into a first heat transfer zone (1) and a second heat transfer zone (2), a low temperature gas (4) flows in the tube, the tube includes a insert component (9) and an outer fin (10); a heat transfer tube in the second heat transfer zone (2) has a sleeve structure, a high-temperature gas (3) flows in the core tube (13), the low temperature gas (4) flows in an annular region between the core tube (13) and an outer tube (14), the high-temperature gas (3) flows out of the core tube (13) and flows into the shell-side area of the second heat transfer zone (2) again.
    Type: Grant
    Filed: August 2, 2017
    Date of Patent: March 29, 2022
    Assignee: XI'AN JIAOTONG UNIVERSITY
    Inventors: Qiuwang Wang, Pan Zhang, Ting Ma
  • Patent number: 11262124
    Abstract: A system for preparing subcooled liquid oxygen based on mixing of liquid oxygen and liquid nitrogen and then vacuum-pumping, including atmospheric-pressure saturated liquid nitrogen and oxygen tanks. An inlet of the liquid nitrogen tank communicates with pressurized gas, and an outlet is connected to an inlet a of a secondary subcooler. An inlet of the liquid oxygen tank communicates with the pressurized gas, and a first outlet is connected to an inlet b of the secondary subcooler. An outlet c of the secondary subcooler is connected to an inlet d of a primary subcooler. An outlet e of the primary subcooler is connected to a pumping-out device through a rewarming device. A second outlet of the liquid oxygen tank is connected to an inlet n of the primary subcooler. An outlet o of the primary subcooler is connected to an inlet r of the secondary subcooler.
    Type: Grant
    Filed: March 25, 2021
    Date of Patent: March 1, 2022
    Assignee: Xi'an Jiaotong University
    Inventors: Fushou Xie, Yanzhong Li, Jianhua Ren, Hongwei Mao
  • Patent number: 11264782
    Abstract: Provided is a gas switch triggered by an optical pulse introduced by an optical fiber, which solves the problem of the existing electrically-triggered gas switch and laser-triggered gas having a complicated trigger system, being insufficiently reliable and having a higher cost due to the pulse amplitude/laser beam energy having higher requirements. The gas switch triggered by an optical pulse introduced by an optical fiber includes at least one trigger gap and one self-breakdown gap; each trigger gap is connected in parallel to a photoconductive switch, and an optical fiber is correspondingly provided for introducing an optical pulse for triggering.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: March 1, 2022
    Assignees: XI'AN JIAOTONG UNIVERSITY, NORTHWEST INSTITUTE OF NUCLEAR TECHNOLOGY
    Inventors: Zhiguo Wang, Fengju Sun, Jiahui Yin, Xiaofeng Jiang, Aici Qiu, Jian Wu, Hongyu Jiang, Xingwen Li, Li Chen, Penghui Li