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公开(公告)号：US12013498B1
公开(公告)日：2024-06-18
申请号：US18402692
申请日：2024-01-02
Inventor： Huiyong Liang , Jiafei Zhao , Xin Lv , Yongchen Song , Jiawei Chu , Shi Shen , Lei Yang , Xingyu Lu , Linan Zhao , Shuangqing Zhang
Abstract: A low-frequency acoustic wave generating device for detecting pipeline blockage related to the technical field of pipeline detection is provided and includes a sealing shell configured to be communicated with a pipeline, a sealed pressure environment is formed inside the sealing shell. A low-frequency electroacoustic transducer is disposed inside the sealing shell, the low-frequency electroacoustic transducer is connected to a signal generator and is configured to transmit an acoustic wave into the pipeline. The device transmits the acoustic wave signals to a high-pressure gas pipeline, combined with a signal generator capable of generating any waveform, thereby emitting any waveform of acoustic wave signal into the pipeline. The use of acoustic waves with special markings and characteristics for pipeline blockage detection can improve the anti-noise interference ability of the acoustic wave detection, and improve the precision of the detection.
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公开(公告)号：US11694338B2
公开(公告)日：2023-07-04
申请号：US17415621
申请日：2020-07-23
Applicant: DALIAN UNIVERSITY OF TECHNOLOGY
Inventor： Yongchen Song , Yanghui Li , Peng Wu , Xiang Sun , Weiguo Liu , Jiafei Zhao , Mingjun Yang , Lei Yang , Zheng Ling
CPC classification number: G06T7/155 , G06T17/10 , G06V10/467 , G06T2207/10081 , G06T2207/20036
Abstract: The present invention belongs to the technical field of petroleum exploitation engineering, and discloses a 3D modeling method for cementing hydrate sediment based on a CT image. Indoor remolding rock cores or in situ site rock cores without hydrate can be scanned by CT; a sediment matrix image stack and a pore image stack are obtained by gray threshold segmentation; then, a series of cementing hydrate image stacks with different saturations are constructed through image morphological processing of the sediment matrix image stack such as dilation, erosion and image subtraction operation; and a series of digital rock core image stacks of the cementing hydrate sediment with different saturations are formed through image subtraction operation and splicing operation to provide a relatively real 3D model for the numerical simulation work of the basic physical properties of a reservoir of natural gas hydrate.
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公开(公告)号：US11911786B2
公开(公告)日：2024-02-27
申请号：US17628104
申请日：2021-06-30
Applicant: DALIAN UNIVERSITY OF TECHNOLOGY
Inventor： Jiafei Zhao , Yongchen Song , Mingzhao Yang , Hongsheng Dong , Lunxiang Zhang , Quan Shi , Lei Yang , Zheng Ling , Xiang Sun , Yanghui Li , Weiguo Liu
Abstract: The present invention discloses a hydrate energy-storage temperature-control material and a preparation method therefor. The material includes a refrigerant hydrate and a cross-linked polymer. The preparation method comprises the following steps: first, preparing a refrigerant hydrate by using a high-pressure reactor, and conducting grinding, crushing and sieving to obtain hydrate particles; then, uniformly spraying polytetrafluoroethylene suspended ultrafine powder onto the surface of the hydrate particles by using an electrostatic spraying device, and putting the hydrate particles into a plasma instrument to modify polytetrafluoroethylene so as to allow free radicals to be formed on the polytetrafluoroethylene powder surface; finally, subjecting monomers to graft polymerization with the free radicals on the polytetrafluoroethylene surface under the irradiation of a high-pressure mercury lamp of UV lighting system to stabilize the structure of the material, preparing a final product. According to the present invention, a hydrate energy-storage temperature-control material with good stability is prepared. A method capable of preparing various types of refrigerant hydrate materials is provided. The product can give full play to the advantages of hydrate energy storage and temperature control, can be periodically used, and can be used in various fields such as building, refrigeration, etc.
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公开(公告)号：US11561158B2
公开(公告)日：2023-01-24
申请号：US17764476
申请日：2021-05-28
Applicant: DALIAN UNIVERSITY OF TECHNOLOGY
Inventor： Yongchen Song , Jiafei Zhao , Lunxiang Zhang , Tian Wang , Lingjie Sun , Yi Zhang , Xiang Sun , Lei Yang , Zheng Ling , Yanghui Li , Weiguo Liu
Abstract: The present invention belongs to the field of gas solubility measurement, and provides a measuring device and method for gas solubility in a natural gas hydrate solution system. The measuring device mainly comprises a reaction system, a sampling system and a data analysis system. The present invention can be used for measuring gas solubility in a natural gas hydrate solution system at different temperature, pressure and salt ion conditions, and exploring influence of different environmental conditions on the gas solubility when hydrate-liquid water biphase equilibrium is achieved. The present invention in characterized in that the structure is simple, the operation is easy, sampling is carried out at a constant pressure to avoid damage to phase equilibrium and dissolution equilibrium of the systems, and a microfilter is used to ensure that a liquid sample taken does not contain hydrate crystals, so that experimental data has a relatively high accuracy.
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公开(公告)号：US11215569B2
公开(公告)日：2022-01-04
申请号：US16968818
申请日：2019-11-18
Applicant: DALIAN UNIVERSITY OF TECHNOLOGY
Inventor： Yongchen Song , Yanghui Li , Peng Wu , Weiguo Liu , Jiafei Zhao , Mingjun Yang , Yu Liu , Lei Yang
IPC: G01N23/046 , G01N3/12
Abstract: The present invention provides a CT triaxial test apparatus for hydrate-bearing sediment, and belongs to the technical field of fundamental physical property measurement of geotechnical engineering. In the apparatus, aiming at the defects of the invention “a visual test apparatus for mechanical characteristics of natural gas hydrate-bearing sediment”, the CT triaxial test apparatus for hydrate-bearing sediment is redesigned and optimized, on the premise of obtaining static and dynamic mechanical characteristics and creep characteristics of a hydrate reservoir, the stability of the triaxial apparatus during rotation due to scanning, the temperature control accuracy of a hydrate-bearing sample, and the X-ray penetration performance of the pressure chamber of the triaxial apparatus are improved, an optimal CT imaging effect is obtained, and powerful hardware support is provided to ascertain the reservoir deformation mechanism during hydrate decomposition.
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Patent Agency Ranking
公开(公告)号：US11939238B2
公开(公告)日：2024-03-26
申请号：US18317098
申请日：2023-05-15
Applicant: DALIAN UNIVERSITY OF TECHNOLOGY
Inventor： Lunxiang Zhang , Yongchen Song , Xiaodong Wu , Jiazhu Bao , Chuanxiao Cheng , Zheng Ling , Jie Wang , Fan Wang , Yu Liu , Lei Yang , Mingjun Yang , Yanghui Li , Peng Wu
Abstract: The present disclosure provides an apparatus and a method for hydrate-based wastewater treatment and cold storage. The apparatus for hydrate-based wastewater treatment and cold storage includes a water chilling unit, a hydrate-based cold storage tank, an airflow disturbance device, a water layer positioning system, a spraying system, a suction filtration system, a heat exchange system, and a system monitoring device. The water chilling unit provides a secondary refrigerant at a low temperature. The secondary refrigerant flows through an evaporator coil in the hydrate-based cold storage tank for heat exchange. The airflow disturbance device induces hydrate nucleation. The water layer positioning system positions a contact surface between a water layer and a hydrate former after hydrate decomposition to facilitate drawing and separation of the treated upper water layer. The spraying system and the suction filtration system enhance the solid-liquid separation efficiency to improve the removal rate of pollutants.
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公开(公告)号：US11926538B2
公开(公告)日：2024-03-12
申请号：US18315484
申请日：2023-05-10
Applicant: DALIAN UNIVERSITY OF TECHNOLOGY
Inventor： Yongchen Song , Lunxiang Zhang , Huilian Sun , Zheng Ling , Jiafei Zhao , Lingjie Sun , Lei Yang , Mingjun Yang , Yu Liu , Weiguo Liu , Yanghui Li , Xiang Sun , Lanlan Jiang
IPC: C02F1/04 , B01D1/30 , B01D5/00 , B01D9/00 , C02F101/20 , C02F103/16
CPC classification number: C02F1/048 , B01D1/30 , B01D5/0006 , B01D5/0051 , B01D5/006 , B01D9/0013 , B01D9/0031 , C02F2101/20 , C02F2103/16 , C02F2209/02 , C02F2209/03
Abstract: The present disclosure relates to the technical field of wastewater treatment, and provides a wastewater treatment method and apparatus based on hydrate-based water vapor adsorption. The apparatus includes a wastewater evaporation zone, a hydrate formation zone, a hydrate decomposition zone, and a data acquisition and control system. Rising water vapor and condensed water formed during evaporation of wastewater at normal temperature react with a hydrate former on a cooling wall surface to form a hydrate, continuous evaporation of the wastewater is promoted, the hydrate is scraped off to a collecting zone below by a scraper after being formed, and the hydrate is decomposed into fresh water, thereby realizing wastewater treatment. The present disclosure provides a method for treating complex wastewater containing a plurality of pollutants, where water vapor is consumed to form the hydrate to promote wastewater evaporation, and water obtained from the decomposition does not contain pollutants theoretically.
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公开(公告)号：US11819794B2
公开(公告)日：2023-11-21
申请号：US17056296
申请日：2020-02-28
Applicant: DALIAN UNIVERSITY OF TECHNOLOGY
Inventor： Yongchen Song , Man Li , Jiafei Zhao , Lei Yang , Zhongwang Sun , Lunxiang Zhang , Weiguo Liu , Yanghui Li , Yu Liu , Mingjun Yang , Yi Zhang , Dayong Wang , Zheng Ling , Lanlan Jiang , Cong Chen , Yuechao Zhao
CPC classification number: B01D47/02 , B01D53/005 , B01D53/62 , B01D53/75 , B01D53/78 , B01D53/96 , B01D2258/0283
Abstract: The present invention discloses a gas hydrate-based particulate/waste gas simultaneous removal system and method. R134a can be used to synthesize particulates/coking waste gases into gas hydrate, which can realize the simultaneous removal of particulates/coking waste gases with no pollution and low energy consumption. The system comprises a waste heat recovery device, a gas hydrate primary dust removal tower, a solid-liquid separation primary tower, a gas hydrate secondary dust removal tower, a solid-liquid separation secondary tower, a gas hydrate decomposition pool, a gas-solid separation tower and a low temperature fractionation device. The present invention can achieve the removal of harmful substances such as heavy metals and coking waste gases while removing particulates. Compared with the current particulate control and waste gas treatment device, the gas hydrate method-based device is greatly simplified and can effectively remove multiple pollutants and realize energy saving and environmental protection.
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9.发明授权公开(公告)号：US11796526B2
公开(公告)日：2023-10-24
申请号：US16968491
申请日：2019-08-31
Applicant: DALIAN UNIVERSITY OF TECHNOLOGY
Inventor： Yongchen Song , Jiafei Zhao , Man Li , Lei Yang , Weiguo Liu , Mingjun Yang , Yanghui Li , Zheng Ling , Yu Liu , Yi Zhang , Dayong Wang
CPC classification number: G01N33/225 , G01N1/42 , G01N21/01 , G01N21/65
Abstract: The invention discloses a gas hydrate pressure maintaining replacement device and method for in-situ Raman analysis. Comprehensive experiments such as the formation/decomposition/displacement of high-pressure gas hydrates can be realized, and in-situ Raman characterization can be performed. Including reaction kettle system with temperature control unit, pressure control gas supply system, pressure holding system, replacement gas system, sample pre-cooling system, vacuum system and data acquisition and processing system. The device can solve the problem that the Raman peak position of the 512 cage is covered by the Raman peak position of the gas when the high-pressure gas hydrate is characterized in situ in the reaction kettle, at the same time, it solves the problems of sampling difficulties in ex-situ Raman characterization and experimental errors caused by sample transfer.
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公开(公告)号：US12188913B1
公开(公告)日：2025-01-07
申请号：US18806721
申请日：2024-08-16
Inventor： Huiyong Liang , Xin Lv , Shi Shen , Lei Yang , Xingyu Lu , Linan Zhao , Shuangqing Zhang
IPC: G01N33/00
Abstract: An in-situ observation device for gas hydrates includes a reactor, which includes a visual tube, a pulling rod, a temperature-controlled seed crystal rod and a spiral adjuster. An upper end and a lower end of the visual tube are respectively equipped with an upper end cap and a lower end cap. The upper end cap defines an air inlet, and the lower end cap defines a liquid inlet. An upper end of the temperature-controlled seed crystal rod is connected to an adjusting flange. The adjusting flange is connected to the spiral adjuster. A lower end of the temperature-controlled seed crystal rod hermetically passes through the upper end cap and is located in the visual tube. The temperature-controlled seed crystal rod defines a cooling liquid channel, and a cooling liquid inlet and a cooling liquid outlet, a seed crystal rod liquid inlet and a seed crystal rod outlet.
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