Plunger piston and hydraulic end of fracturing pump

• Main Authors: ZHANG JIAN, TIAN YE, CHEN LIAOWANG, CHEN YUE, XIU SHIJIN, KONG FANNAN, WU SHUANG, HU YAN, ZHANG CHENGYU, CUI XIAOYU, SUI YIBING, MA PEIJING, BU CONG, JI CHENG, GAO YIRAN, HAN HANPEI, GE TING, LIU CHUNQUAN
• Format: Patent
• Language: Chinese; English
• Published: 24.12.2014
• Subjects: BLASTING; EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIXED CONSTRUCTIONS; HEATING; LIGHTING; MECHANICAL ENGINEERING; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; WEAPONS

The utility model discloses a plunger piston and a hydraulic end of a fracturing pump, and aims at solving the problem of inconvenient replacing of a valve box in the prior art. The plunger piston comprises a plunger piston body. The plunger piston is characterized by comprising a plunger piston pip and a suction valve, wherein the plunger piston pipe extends along a straight line or an arc line; a channel which passes through along the direction to which the plunger piston pipe extends is arranged in the plunger piston; the plunger piston comprises a first end with a first channel opening, and a second end with a second channel opening, wherein the first end and the second end are oppositely arranged; the first end is used for extending the valve box at the hydraulic end of the fracturing pump; the second end is connected to a force applying part which can push and pull the plunger piston; the first channel opening can be blocked by the suction valve while a force is applied to enable the suction valve to mo