Plunger pump fluid end and plunger pump
By installing a wear-resistant sleeve and seals at the hydraulic end suction port, the wear problem at the hydraulic end suction port seal is solved, thereby improving sealing performance and extending service life under high pressure conditions.
CN224352082UActive Publication Date: 2026-06-12YANTAI JEREH PETROLEUM EQUIP & TECH CO LTD
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YANTAI JEREH PETROLEUM EQUIP & TECH CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-06-12
AI Technical Summary
Technical Problem
The existing hydraulic end suction end seals fail due to wear caused by alternating loads and medium impurities, affecting operating efficiency and service life.
Method used
A wear-resistant sleeve is installed at the suction port. The wear-resistant sleeve, made of high-hardness material, reduces wear. Combined with the seal and threaded connection, it ensures sealing performance and is securely installed under high-pressure conditions.
Benefits of technology
It effectively reduces wear on the suction end sealing surface, extends the service life of the hydraulic end, reduces maintenance costs, and improves sealing performance and operating efficiency.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN224352082U_ABST
Abstract
The application relates to a plunger pump fluid end and a plunger pump, the plunger pump fluid end comprising: a valve box comprising a suction port and a packing cavity in communication, the suction port comprising a large-diameter part and a small-diameter part, the packing cavity being in communication with the small-diameter part, and the inner diameter of the packing cavity being greater than or equal to the inner diameter of the small-diameter part; a suction end wear-resistant sleeve installed in the small-diameter part; a plunger movably arranged in the packing cavity; and a suction end gland detachably arranged in the suction port and in sealing contact with the suction end wear-resistant sleeve. By setting the diameters of the suction port, the packing cavity and the suction end wear-resistant sleeve, the suction end wear-resistant sleeve is effectively compressed by being put into the small-diameter part of the suction port from one side of the packing cavity, wear problems are reduced, sealing failure is avoided, the sealing effect is enhanced, the hole diameter of the suction port is reduced, wear is reduced, and the service life is prolonged.
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