Flushing water quantity control system and method applied to drill jumbo

• Main Authors: HOU ZHIQIANG, WANG YANMENG, ZHOU ZHONGSHANG, LIU HAO
• Format: Patent
• Language: Chinese; English
• Published: 26.03.2024
• Subjects: EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIXED CONSTRUCTIONS; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS

The invention discloses a flushing water quantity control system and method applied to a drill jumbo. The system comprises various sensors, a controller, a displayer, an electromagnetic valve and a flushing water pump which are installed on the drill jumbo and flushing equipment. The method comprises the following steps: acquiring a drilling state, a drilling displacement value, an included angle value between a drill hole and a horizontal plane, flushing water volume data, flushing water pressure data and a display setting data to control the opening or closing of an electromagnetic valve and a flushing water pump, acquiring the real-time drilling speed of the rock drill and pre-judging the blockage of a drill bit; after the electromagnetic valve is controlled to be opened, the flushing water amount needed by the flushing equipment is accurately calculated according to the set data and the data obtained in real time, and a control instruction for adjusting the rotating speed of the flushing water pump is gen