Piezoelectric control double-acting check valve

• Main Authors: LI ZHENGTIAN, HU GAIXING, YANG LINGZHI, HE RUXIAN, YU JIUZHENG, BI FUWEI, SHEN XIAOLI, LIU YANQING, WANG ERZHEN, JI ZHENNING, WANG JUNTAO
• Format: Patent
• Language: Chinese; English
• Published: 21.06.2024
• 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 piezoelectric control double-acting check valve which comprises a valve body, the valve body comprises an upper connector, a sealing ring, a communicating pipe, a valve body, a pressure bearing sleeve and a lower connector which are sequentially connected, and a ball valve part, a sliding valve, a hydraulic oil cavity part, a control circuit, a battery pack and a switch assembly are sequentially arranged in the valve body from the upper connector to the lower connector. The ball valve component is fixedly connected with the sliding valve and arranged in a cavity C formed between the upper connector and the sealing ring, the hydraulic oil cavity component is arranged in a cavity A formed among the communicating pipe, the valve body and the pressure bearing sleeve, and the control circuit, the battery pack and the switch assembly are arranged in a cavity B formed in the pressure bearing sleeve. According to the piezoelectric control double-acting check valve, the piezoelectric control