Pump valve structure of plunger pump suitable for high-impurity water quality

The utility model relates to the technical field of oil field edge water reinjection plunger pumps, in particular to a pump valve structure of a plunger pump suitable for high-impurity water. Comprising a combined valve seat arranged in a pump cavity of a plunger pump body, and a liquid outlet passage and a liquid inlet passage are arranged in the combined valve seat; an outlet of the liquid outlet passage is provided with a liquid outlet valve, and an inlet of the liquid inlet passage is provided with a liquid inlet valve. Plane sealing is changed into conical surface sealing, and the service life of the combination valve is prolonged by 2-3 times. The plunger pump is suitable for the working condition occasion of reinjection of unfiltered high-impurity-content water, and can effectively solve the problems of short service life, large maintenance workload, low pump efficiency and high energy consumption of a pump valve at the horizontal fluid end of the plunger pump. 本实用新型涉及油田边水回注柱塞泵技术领域，具体涉及一种适用高杂质水质柱塞泵泵阀结构