Plunger Pump Head Assembly for Single-Side Valve Maintenance
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Solution Overview
Problem
Existing plunger pumps have inefficient and laborious disassembly and assembly processes due to their unreasonable structure, leading to high maintenance costs and reduced component lifespan due to eccentric wear and unilateral stress on valve cores.
Innovation Solution
A five-plunger emulsion pump design with a pump head assembly that allows for components to be mounted and disassembled from a single side, featuring a stepped transition between valve base mounting portions and integrated sensors for real-time monitoring of valve core performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If liquid suction valve assembly and liquid discharge valve assembly are assembled from both sides of pump head body, then sealing performance is improved, but maintenance time increases and operability deteriorates
Solution Approach 1:
Instead of assembling valve assemblies from both sides of the pump head body as in conventional designs, this patent inverts the approach by providing a through-hole in the pump head body that allows both the liquid suction valve assembly and liquid discharge valve assembly to be assembled from one side. This inversion of the assembly direction resolves the contradiction by enabling easy maintenance access while maintaining sealing performance through the redesigned single-side assembly structure.
2Device complexity
If reset spring mounting seat is designed at lower part of liquid discharge valve core, then structural compactness is improved, but valve core mass increases and inertia force becomes large
Solution Approach 1:
This patent extracts the reset spring mounting seat from the liquid discharge valve core structure and relocates it to the pump head body. By taking out the mounting seat from the moving valve core and fixing it to the stationary pump head body, the valve core mass is reduced, thereby decreasing inertia force while maintaining structural compactness through the integrated design.
3Ease of manufacture
If pump head body and suction box are two independent parts assembled by long screw, then manufacturing flexibility is improved, but assembly cost increases and assembly time increases
Solution Approach 1:
This patent merges the pump head body and suction box into a single integrated component with a unified casting structure. By combining these two previously independent parts, the patent eliminates the need for long screws and complex assembly procedures, thereby reducing assembly cost and assembly time while maintaining manufacturing flexibility through integrated design capabilities.
Data Source
AI summary
A plunger pump includes a pump head assembly, which includes: a pump head body, a chamber in the pump head body; a liquid suction valve assembly, a liquid discharge valve assembly, and a separation sleeve for separating the liquid suction valve assembly from the liquid discharge valve assembly that are located in the chamber. The chamber includes: a liquid suction valve base mounting portion for mounting the liquid suction valve assembly, a separation sleeve mounting portion for mounting the separation sleeve, a liquid discharge valve base mounting portion for mounting the liquid discharge valve assembly, and a liquid suction chamber on a lower side of the liquid suction valve base mounting portion and in communication with an emulsion supply device by a pipeline.