Plunger Pump Head Assembly for One-Side Valve Maintenance
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Solution Overview
Problem
The existing plunger pumps have inefficient and laborious disassembly and assembly processes due to their unreasonable structure, leading to high maintenance costs and reduced operational reliability, and lack effective monitoring of critical components within the pump station.
Innovation Solution
The plunger pump design includes a chambered pump head assembly with integrated liquid suction and discharge valve assemblies, allowing for assembly and disassembly from one side, and incorporates pressure, magnetostrictive, and vibration sensors for real-time monitoring, along with a lubrication and cooling system for improved efficiency and maintenance.
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 and operational complexity increase significantly
Solution Approach 1:
The pump head body is segmented into functional zones with a through-hole design that allows access to both valve assemblies from one side. The liquid suction valve assembly and liquid discharge valve assembly are positioned such that their mounting locations are accessible through the through-hole, enabling maintenance personnel to service both assemblies without disassembling the entire pump head from multiple sides.
Solution Approach 2:
The through-hole structure serves multiple functions: it provides access for maintaining both liquid suction and liquid discharge valve assemblies, acts as a passage for internal fluid flow paths, and maintains structural integrity of the pump head body. This multi-functional design eliminates the need for separate access points for each valve assembly.
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 and inertia force increase
Solution Approach 1:
The reset spring mounting seat is repositioned from a vertical arrangement (at the lower part of the valve core) to a horizontal arrangement (at the side of the valve core). This dimensional change allows the mounting seat to be located in the radial direction of the valve core rather than the axial direction, reducing the valve core's length and mass while maintaining the reset spring's functionality.
3Ease of manufacture
If pump head body and suction box are designed as two independent parts, then manufacturing flexibility is improved, but assembly complexity and manufacturing cost increase
Solution Approach 1:
The pump head body and suction box are merged into a single integrated component. The through-hole structure is designed to accommodate both the pump head body and suction box functions within one piece, eliminating the need for separate manufacturing and assembly of these two parts. This integration reduces the number of components, simplifies assembly procedures, and lowers manufacturing costs while maintaining the functional benefits of having distinct pump head and suction box regions.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Facilitates easy assembly and disassembly, reduces maintenance time and costs, and provides comprehensive monitoring of pump performance, enhancing reliability and operational efficiency.
Implementation Method 1
a magnetostrictive sensor arranged in the pump head body and configured to detect a position of the liquid discharge valve core
Implementation Method 2
a pressure sensor arranged in the pump head assembly
Implementation Method 3
a vibration sensor arranged in the pump head assembly and configured to detect a vibration of the pump head body
Implementation Method 4
a lubrication and cooling system for improved efficiency and maintenance
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
A plunger pump, comprising a pump head assembly (100), which comprises: a pump head body (101), a chamber being provided in the pump head body (101); a liquid suction valve assembly (102), a liquid discharge valve assembly (103), and a separation sleeve (104) for separating the liquid suction valve assembly (102) from the liquid discharge valve assembly (103) that are located in the chamber; the chamber comprises: a liquid suction valve base mounting portion (1012) for mounting the liquid suction valve assembly (102), a separation sleeve mounting portion (1013) for mounting the separation sleeve (104), a liquid discharge valve base mounting portion (1014) for mounting the liquid discharge valve assembly (103), and a liquid suction chamber (1011) located on a lower side of the liquid suction valve base mounting portion (1012); the liquid suction chamber (1011) is in communication with an emulsion supply device by means of a pipeline, the transition between the liquid discharge valve base mounting portion (1014) and the separation sleeve mounting portion (1013) is achieved by means of a stepped surface, the pore diameter of the liquid discharge valve base mounting portion (1014) is larger than that of the separation sleeve mounting portion (1013), and the pore diameter of the separation sleeve mounting portion (1013) is larger than or equal to that of the liquid suction valve base mounting portion (1012). Moreover, a pump station using such a plunger pump, the plunger pump is easy to disassemble and assemble and maintain.