Diaphragm Pump Head Module for Easy Valve Maintenance
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Solution Overview
Problem
Conventional reciprocating pumps face difficulties in attaching and detaching suction and discharge valves due to the need for fastening screws, complicating maintenance and replacement processes.
Innovation Solution
A pump device design featuring a detachable pump head with integrated suction and discharge valves, utilizing a module guide that holds both valves vertically, and a coupling mechanism for easy attachment and detachment, along with horizontal and vertical flow paths for fluid communication, allowing for phase-shifted diaphragm operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If suction valve and discharge valve are attached to pump head via fastening screws, then valves are securely fixed, but attachment and detachment become difficult during maintenance
Solution Approach 1:
The pump head is divided into an upper pump head and a lower pump head that can be separated from each other. The suction valve is attached to the lower pump head and the discharge valve is attached to the upper pump head. This segmentation allows the valves to remain securely fixed during operation while enabling easy access and replacement by simply separating the pump head sections, eliminating the need to work with fastening screws during maintenance.
Solution Approach 2:
The valves are extracted from a fixed permanent installation and made movable between different pump head sections. The suction valve can be transferred from the lower pump head to the upper pump head, and the discharge valve can be transferred from the upper pump head to the lower pump head, allowing flexible maintenance and replacement without permanent fastening.
2Productivity
If suction valve and discharge valve are arranged on multiple stages along vertical direction, then fluid flow path is optimized, but structural complexity increases
Solution Approach 1:
The suction valve and discharge valve are merged into a coordinated system where both valves can be attached to either the upper or lower pump head. This combining of valve functions across two detachable pump head sections achieves the benefits of multi-stage vertical arrangement for fluid transport while reducing complexity through standardized attachment interfaces and modular design.
Data Source
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Figure 3
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AI summary
A pump device includes a pump head and a device main body part. The pump head includes: a valve module having a module guide that integrally holds a suction valve and a discharge valve and that has a side flow path allowing an inter-valve flow path to communicate with an outer lateral surface; a first block including a first accommodation chamber accommodating a lower part of the valve module, a suction port, a suction-side flow path that connects the suction port to the suction valve, a pump chamber of which an upper part is positioned below the side flow path, and a pump chamber communication flow path that connects the pump chamber to the side flow path; a second block including a second accommodation chamber accommodating an upper part of the valve module, a discharge port, and a discharge-side flow path that connects the discharge port to an upper part of the discharge valve; and coupling means for coupling the blocks together. The device main body part includes a diaphragm accommodated in the pump chamber of the first block and an actuator that drives the diaphragm to reciprocate.