Dalian University of Technology

Kede Numerical Control Co., Ltd.

Yu Liu

Yongchen Song

Mingjun Yang

Lei Yang

Zheng Ling

Yanghui Li

Jiafei Zhao

Weiguo Liu

Lunxiang Zhang

Lanlan Jiang

Yi Zhang

Peng Wu

Cong Chen

Dayong Wang

Yuechao Zhao

Bingbing Chen

Yan Qin

Man Li

Chuanxiao Cheng

Fan Wang

Feng Wang

Zhongxuan Luo

Xin Fan

Risheng Liu

Hu Chen

Di Wu

Yinghua Li

Xin Wang

Xiang Sun

Huiyong Liang

Jie Wang

Shengfeng Yu

Yang Wang

Jiawei Chu

Lingjie Sun

Kangjie Liu

Yugang Yin

Jian Wang

Guanghan Yan

Mingrui Sun

Yiqiang Liang

Zhaoda Zhang

Yubai Li

Yunlong Chai

Han Yan

Xiaokai Zhang

Peng Wang

Fuyu Hua

Shuai Li

Yunsheng Yang

Jun Zhang

Jiafel Zhao

Yuan Lv

Yingying Cui

Huilian Sun

Xianwei Guo

Zheyuan Liu

Qi Jia

Qian Wang

Yi Wang

Xiujuan Xu

Zhongwang Sun

Zherui Chen

Xi Wang

Jingyue Sun

Shihang Qu

Jiazhu Bao

Xiaodong Wu

Sijia Wang

Tao Yu

Dawei Guan

Renwei Liu

Jiming Wang

Jiayi Yu

Tingting Wang

A distributed low energy dynamic thermal management system for solid matter prevention and control in oil and gas transportation pipeline includes a pipeline data monitoring terminal, a current and an electric pulse control terminal, a land console, an electric heating terminal, a wiring flange, an oil and gas transportation pipeline, a valve structure. The system monitors the state of the pipeline in real time by the pipeline data monitoring terminal, and transmits the monitoring data to the current and electric pulse control terminal in real time, the current and electric pulse control terminal produces different thermal responses to the electric heating terminal according to the state in the tube, raises the temperature inside the tube by generating a continuous current, unblocks pipeline by generating high power electric pulse, so as to realize real-time monitoring and local temperature dynamic control of oil and gas transportation pipeline.

Distributed low energy dynamic thermal management system for solid matter prevention and control in oil and gas transportation pipeline

A cold storage system and method are provided. The cold storage system includes a chiller, a hydrate-based cold storage tank, a gas disturbance generator, a concentration detector, a heat exchanger, a direct-current power supply and circuit controller, and a system monitor. Chiller provides a secondary refrigerant at a low temperature. The secondary refrigerant flows through a coil in the hydrate-based cold storage tank for a heat exchange. The gas disturbance generator induces hydrate nucleation. The concentration detector monitors a concentration of a hydrate solution in real time. The heat exchanger is equipped with a finned tube heat exchanger with a fan, to improve the cold supply efficiency of the cold storage system. The system monitor monitors a state change of the system in real time through a set of temperature-pressure sensor modules. Several cold energy supply modes can be realized in the present disclosure by adjusting opening/dosing of valves.

Internal circulation type clathrate hydrate-based cold storage system and method

The present disclosure relates to the field of COgeological sequestration, and provides a whole-process multi-parameter monitoring device and method for simulating COgeological 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.

Whole-process multi-parameter monitoring device and method for simulating COgeological sequestration and use thereof

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.

Heat exchanger based on gyroid/diamond hybrid minimal surface-based disturbance structure

An automatic loading and unloading processing system includes a material storage assembly to store workpieces; a positioning device on a worktable; and a transport mechanism to transport the workpiece from the material storage assembly to the positioning device and transport the processed workpiece into the material storage assembly. The material storage assembly includes a material tray; fixing bases; a motion mechanism; and holders on the fixing base for fixing the workpiece, and the motion mechanism controls the movement of the material tray. The transport mechanism includes an auxiliary loading and unloading system arranged at a worktable to grab the holders and move horizontally; and a main loading and unloading system arranged on a main spindle to grab the holders and move vertically.

Automatic feeding and discharging machining system

A method for enhancing geological storage by injecting nanoparticles to stabilize COmicrobubbles, which belongs to the technical field of multiphase flow. The method first improves the physical properties of the fluid by pre-mixing COand nanoparticles, and then the fluid is transported to the underground through high-pressure pipelines, and then COmicrobubbles containing nanoparticles are generated through a dense perforated plate arranged by an injection well to improve the dissolution rate and sweep efficiency of the gas in the saline aquifer, so as to enhance the later mixing of the fluid. The combined injection can improve COstorage capacity and storage safety, and further reduce the risk of gas leakage in the reservoir.

Method for stabilizing COmicrobubble by injecting nanoparticles to enhance geological storage

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.

Apparatus and method for hydrate-based wastewater treatment and cold storage

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.

Wastewater treatment method and apparatus based on hydrate-based water vapor adsorption

The present invention discloses an electric heating thermal management system for an oil and gas transportation pipeline based on renewable energy and COenergy storage. It transmits the feedback data value through a data collection device arranged in the pipeline to the early warning device by the control device. After analysis and processing, the early warning device can feed back the data value to the control device and the remote operation device in two modes. Different degrees of heating amount can be generated for the oil and gas transportation pipelines at different positions in different modes. Hierarchical and distributed management control for the oil and gas transportation pipelines can be targetedly conducted in unblocked, easily blocked and blocked positions of the oil and gas transportation pipeline. The present invention couples the renewable energy electricity supply device and the COenergy storage device.

Electric heating thermal management system for oil and gas transportation pipeline based on renewable energy and CO2 energy storage

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.

Gas hydrate-based particulate/waste gas simultaneous removal system and method

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.

Device and method of gas hydrate pressure maintaining replacement for in-situ Raman analysis

The present invention relates to the technical field of digital image processing, and provides an ellipse detection acceleration method based on generalized Pascal mapping. The method comprises: step, extracting accurate edge points from a real image by means an edge detection method of an ellipse detection method, connecting edge points into arcs, and taking a de-noised arc set as input of an ellipse detection acceleration method; step, screening out a valid candidate arc combinations probably belonging to the same ellipse from the arc set input in step; step, calculating five parameters of a candidate ellipse; repeating stepto stepuntil all valid candidate arc combinations in the arc set and corresponding candidate ellipses are found; and step, clustering and verifying candidate ellipse sets, obtaining a final detected ellipse set.

Ellipse detection acceleration method based on generalized Pascal mapping

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.

System and method for separating xenon-krypton mixed gas by hydrate formation process

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.

CT triaxial test apparatus for hydrate-bearing sediment

The present invention discloses a fully visual flow loop system for studying hydrate blockage. The fully visual flow loop system includes a first pipeline, a second pipeline, a third pipeline and a fourth pipeline connected successively in an end-to-end way; a single screw pump is connected between the first pipeline and the fourth pipeline from the four pipelines; the first pipeline, the second pipeline, the third pipeline and the fourth pipeline are all transparent to light; a plurality of CCD cameras are arranged between the first pipeline, the second pipeline, the third pipeline and the fourth pipeline; and, the fully visual flow loop system is arranged in a stepping low-temperature thermostatic chamber; a solution injection system can inject a solution into the fully visual flow loop system; a separation and collection system can separate and recover the solution; and a data acquisition system can integrate sensor information in all the other systems and give real-time feedback to ensure reasonable and coordinated operation of all systems. The fully visual flow loop system for studying hydrate blockage in the present invention can realize full visualization and real-time monitoring of the flow loop system.

Fully visual flow loop system for studying hydrate blockage

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Liaoning, China

Yu Liu