Coal seam self-propelled water jet coal rock breaking drilling and pore-forming dynamic test system and coal seam self-propelled water jet coal rock breaking drilling and pore-forming dynamic test method

• Main Authors: ZHANG LIANG, CHEN BIN, REN QINGYANG, XIAO SONGQIANG, SONG CHENPENG, MENG XIN, QIN HAOXIN, CHENG YUGANG, WANG HAIYANG
• Format: Patent
• Language: Chinese; English
• Published: 31.05.2022
• Subjects: ADVERTISING; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND,DEAF OR MUTE; CRYPTOGRAPHY; DIAGRAMS; DISPLAY; EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; EDUCATION; EDUCATIONAL OR DEMONSTRATION APPLIANCES; FIXED CONSTRUCTIONS; GLOBES; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS; PHYSICS; PLANETARIA; SEALS

The invention provides a coal seam self-propelled water jet coal rock breaking drilling and pore-forming dynamic test system and a coal seam self-propelled water jet coal rock breaking drilling and pore-forming dynamic test method. The test system comprises a high-pressure water jet generation system, a test piece three-dimensional stress loading system and a self-propelled water jet drilling test system. The high-pressure water jet generation system comprises a water tank and a high-pressure pump. And the high-pressure pump is communicated with the jet flow nozzle or the self-propelled water jet flow drilling pipeline through a high-pressure pipeline. And an electromagnetic valve, a pressure sensor and a flow sensor are arranged on the high-pressure pipeline. The device solves the problem that an existing method and an existing test system cannot carry out coal rock breaking under the water jet erosion three-dimensional stress environment, and the water jet coal rock breaking environment under the real three