Mechanically controlled plunger pump valve
By designing mechanically controlled plunger pump valves and piston pumps, the problems of gas resistance and mixing blockage in chemical dosing devices during oil extraction were solved, thereby improving the stability and efficiency of liquid output.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HANZHONG KAIRUI ELECTROMECHANICAL
- Filing Date
- 2025-08-26
- Publication Date
- 2026-06-09
AI Technical Summary
Existing automatic chemical dosing devices in oil extraction suffer from problems such as frequent air blockage, unstable liquid output, sediment blockage caused by reagent mixing, and cumbersome manual operation, which affect the practicality and efficiency of the equipment.
An innovative pump structure was designed, employing a novel plunger pump for efficient oilfield extraction with either dual or single components. By controlling the valve and piston movement through a mechanical structure, it achieves micro-volume, continuous, and reliable liquid output, avoiding vapor lock. Furthermore, the problem of reagent mixing is solved through the design of isolation plates and independent components.
It achieves stability and accuracy in liquid output, eliminates air resistance, reduces production costs and maintenance difficulty, and improves the efficiency and continuity of dosing operations.
Smart Images

Figure CN224339125U_ABST