Yixin Liu

Title: Yixin Liu: Innovator in Gas Drainage Technologies

Introduction

Yixin Liu is a prominent inventor based in Qingdao, China, known for his contributions to gas drainage technologies. With a total of 2 patents, Liu has developed innovative solutions that address challenges in deep low-permeability gassy coal seams.

Latest Patents

Liu's latest patents include a "Drilling-slitting-sealing-fracturing device and method for a deep low-permeability gassy coal seam." This device features a drilling control system, a high-pressure water power system, a water pressure grading control system, and a fracturing and sealing control system. The drilling control system adjusts the drilling direction and water supply pressure of the drill rod. The high-pressure water power system supplies high-pressure water at varying pressures, while the water pressure grading control system ensures optimal flushing and sealing pressures.

Another significant patent is the "Full-length screen pipe hole protection device and method with pressurized hole packing in soft coal seam." This device includes a grouting system, a drainage system, and a hole fixing system. The grouting system injects pressurized sealing material into a borehole to enhance sealing effectiveness. The drainage system facilitates gas flow, while the hole fixing system stabilizes the structure within the borehole.

Career Highlights

Yixin Liu is affiliated with Shandong University, where he continues to advance research in gas drainage technologies. His work has significantly impacted the efficiency and safety of gas extraction processes in coal seams.

Collaborations

Liu collaborates with esteemed colleagues, including Guanhua Ni and Weimin Cheng, who contribute to his research endeavors.

Conclusion

Yixin Liu's innovative patents and research at Shandong University highlight his commitment to improving gas drainage technologies. His contributions are vital for enhancing the efficiency of coal seam gas extraction processes.