公开(公告)号：US20250067526A1

公开(公告)日：2025-02-27

申请号：US18700712

申请日：2022-12-26

Applicant: DALIAN UNIVERSITY OF TECHNOLOGY

Inventor： Yu LIU ,  Guanghan YAN ,  Jiafei ZHAO ,  Yongchen SONG ,  Mingrui SUN ,  Yiqiang LIANG ,  Lei YANG ,  Lunxiang ZHANG ,  Yunsheng YANG ,  Shuai LI ,  Zhaoda ZHANG ,  Xiaokai ZHANG ,  Han YAN ,  Fuyu HUA ,  Yunlong CHAI ,  Jun ZHANG ,  Di WU ,  Kangjie LIU ,  Peng WANG

IPC: F28F21/08 ,  B33Y80/00 ,  F28F9/24

Abstract: The present disclosure belongs to the technical field of heat exchangers, and provides a heat exchanger based on a Gyroid/Diamond (GD-type) hybrid minimal surface-based disturbance structure. The heat exchanger includes a core, headers, and flanges. The core includes a cold fluid channel and a hot fluid channel, the cold fluid channel and the hot fluid channel are separated by a parting sheet. An inlet and an outlet of the cold fluid channel are separated from an inlet and an outlet of the hot fluid channel by sealing bars. A GD-type hybrid minimal surface-based disturbance structure is inserted into the hot fluid channel. A cold fluid and a hot fluid are distributed in a cross-flow manner.

公开(公告)号：US20230365430A1

公开(公告)日：2023-11-16

申请号：US18315484

申请日：2023-05-10

Applicant: DALIAN UNIVERSITY OF TECHNOLOGY

Inventor： Yongchen SONG ,  Huilian SUN ,  Lunxiang ZHANG ,  Jiafei ZHAO ,  Lingjie SUN ,  Zheng LING ,  Lei YANG ,  Yu LIU ,  Weiguo LIU ,  Yanghui LI ,  Xiang SUN ,  Lanlan JIANG

IPC: C02F1/04 ,  B01D5/00 ,  B01D1/30 ,  B01D9/00 ,  C02F101/20 ,  C02F103/16

CPC classification number: C02F1/048 ,  B01D5/006 ,  B01D1/30 ,  B01D9/0031 ,  B01D5/0006 ,  B01D9/0013 ,  B01D5/0051 ,  C02F2101/20 ,  C02F2209/02 ,  C02F2103/16 ,  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.

公开(公告)号：US20220230326A1

公开(公告)日：2022-07-21

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

IPC: G06T7/155 ,  G06V10/46 ,  G06T17/10

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.

公开(公告)号：US20210072216A1

公开(公告)日：2021-03-11

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

IPC: G01N33/22 ,  G01N21/65 ,  G01N1/42 ,  G01N21/01

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.

公开(公告)号：US20250034995A1

公开(公告)日：2025-01-30

申请号：US18784963

申请日：2024-07-26

Applicant: DALIAN UNIVERSITY OF TECHNOLOGY

Inventor： Yongchen SONG ,  Lei YANG ,  Mingjun YANG ,  Yu LIU ,  Lanlan JIANG ,  Dawei GUAN ,  Lunxiang ZHANG ,  Yi ZHANG ,  Yanghui LI ,  Zheng LING ,  Tao YU ,  Bingbing CHEN ,  Peng WU

IPC: E21B49/00 ,  E21B43/16 ,  E21B47/07

Abstract: The present disclosure relates to the field of CO2 geological sequestration, and provides a whole-process multi-parameter monitoring device and method for simulating CO2 geological sequestration and use thereof. A large-scale reactor body is developed, and a geological reservoir at a depth of 800 to 3000 meters is simulated. A modular built-in model device is researched and developed, a multi-type and variable-structure reservoir remodeling technology is developed, and mutual coupling of modules can be achieved. The design idea of separating the pressure reactor from the built-in sample model is adopted in the device. The confining pressure, the pore pressure, the temperature gradient, and the axial load of the device can be independently controlled through a temperature control mechanism and a loading mechanism respectively, so that the restoration of the state of in-situ stresses in the reservoir is realized.

公开(公告)号：US20220395848A1

公开(公告)日：2022-12-15

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

IPC: B05B5/08 ,  B05D1/06 ,  C09K5/06

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.

公开(公告)号：US20210146301A1

公开(公告)日：2021-05-20

申请号：US16968817

申请日：2019-04-09

Applicant: DALIAN UNIVERSITY OF TECHNOLOGY

Inventor： Yongchen SONG ,  Jiafei ZHAO ,  Xianwei GUO ,  Lei YANG ,  Weiguo LIU ,  Mingjun YANG ,  Yanghui LI ,  Zheng LING ,  Yu LIU ,  Yi ZHANG ,  Dayong WANG ,  Lanlan JIANG ,  Yuechao ZHAO

IPC: B01D53/46 ,  C01B23/00 ,  B01D53/34 ,  B01D53/22

Abstract: The invention provides a method and system for separating xenon-krypton mixed gas by hydrate formation process. The system is mainly composed of a gas hydrate generating unit, a heat exchanging unit and a gas-water separating unit: pre-cooled xenon-krypton mixed gas is injected from a bottom of a reaction tower, xenon gas in the mixed gas and water attached to a porous tray generate a xenon gas hydrate; and water is injected from a top of the tower to wet the porous tray, a generated hydrate particle is washed and collected to the bottom of the tower simultaneously to form a hydrate slurry, after passing through the heat exchanging unit, the xenon gas hydrate in the slurry is decomposed to form a gas phase flow and a water phase flow, and then enters the gas-water separating unit, and the xenon gas is separated from decomposed water.

公开(公告)号：US20230272264A1

公开(公告)日：2023-08-31

申请号：US17919077

申请日：2021-12-28

Applicant: DALIAN UNIVERSITY OF TECHNOLOGY

Inventor： Jiafei ZHAO ,  Yuxin JIA ,  Lei YANG ,  Yanzhen LIU ,  Lunxiang ZHANG ,  Yongchen SONG ,  Weiguo LIU ,  Yanghui LI ,  Yu LIU ,  Mingjun YANG ,  Zheng LING ,  Dayong WANG ,  Xiang SUN ,  Tao YU

IPC: C09K8/524

CPC classification number: C09K8/524 ,  C09K2208/22

Abstract: The present invention belongs to the technical field of natural gas hydrates (NGHs), and provides an environmentally friendly NGH inhibitor and application. The hydrate inhibitor has a component of nisin, and further comprises chitooligosaccharide and an alcohol thermodynamic hydrate inhibitor, that can enhance the thermostability of the inhibitor and the inhibitory effect for NGHs. The optimal application conditions of the NGH inhibitor of the present invention are: temperatures of −10 to 100° C., pressures of 0.1 to 25 MPa, and a maximum subcooling degree of 12° C. The inhibitor of the present invention has good NGH inhibitory performance and certain antibacterial effects, which is a low-dose, degradable, high temperature resistant, green, environmental protective, safe and efficient NGH inhibitor, that can be used for the fields of oil-gas transportation and NGHs, and provides a new solution for field application of green natural hydrate inhibitors.

公开(公告)号：US20220156901A1

公开(公告)日：2022-05-19

申请号：US17416028

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

IPC: G06T5/30 ,  G06T17/00 ,  G01N23/046 ,  G06T7/11 ,  G06T7/136

Abstract: The present invention belongs to the technical field of petroleum exploitation engineering, and discloses a 3D modeling method for pore-filling 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 pore-filling hydrate image stacks with different saturations are constructed through image morphological processing of the pore image stack such as erosion, dilation and image subtraction operation; and a series of digital rock core image stacks of the pore-filling 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.

公开(公告)号：US20250146731A1

公开(公告)日：2025-05-08

申请号：US18833379

申请日：2022-12-09

Applicant: DALIAN UNIVERSITY OF TECHNOLOGY

Inventor： Yongchen SONG ,  Yuan LV ,  Lunxiang ZHANG ,  Chuanxiao CHENG ,  Mingjun YANG ,  Yu LIU ,  Fan WANG ,  Lei YANG ,  Yi ZHANG ,  Zheng LING ,  Yanghui LI ,  Cong CHEN ,  Peng WU ,  Bingbing CHEN

IPC: F24F5/00

Abstract: An internal circulation type clathrate hydrate-based cold storage system and method are provided in the field of industrial refrigeration. The internal circulation type clathrate hydrate-based cold storage system includes a water chilling unit, a hydrate-based cold storage tank, a gas disturbance device, a concentration measurement system, a heat exchange system, a direct-current power supply and circuit control 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 a heat exchange. The gas disturbance device induces hydrate nucleation. The concentration measurement system monitors a concentration of a hydrate solution in real time. The heat exchange system is equipped with a finned tube heat exchanger with a fan. The system monitoring device monitors a state change of the system in real time through a plurality of temperature-pressure sensor modules.