Piston Pump Segmentation for Groundwater Circulation
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Solution Overview
Problem
Existing piston pumps for groundwater circulation systems face challenges in efficiently pumping fluids with varying viscosities and pressures, often generating large pressure differences that can lead to precipitation issues.
Innovation Solution
A piston pump design featuring a hollow cylinder with a piston that can be axially displaced, equipped with mechanical locking elements and a pneumatic or hydraulic drive, allowing for controlled fluid introduction and discharge without large pressure differences, and capable of pumping various fluids including gases and liquids with different viscosities.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If conventional piston pumps are used for groundwater circulation, then pumping function is achieved, but large pressure differences are generated causing precipitation issues
Solution Approach 1:
The pump system is divided into multiple chambers (first chamber, second chamber, third chamber) with separate piston arrangements. This segmentation allows independent control of pressure zones, enabling fluid transport while maintaining smaller pressure differences in each segment, thereby reducing precipitation risk in groundwater circulation systems.
Solution Approach 2:
Different chambers are designed with different functional characteristics - the first chamber handles suction with one piston arrangement, while the second and third chambers handle pressure and discharge with different piston arrangements. This local differentiation optimizes pressure distribution across the system, minimizing harmful pressure differences that cause precipitation.
2Adaptability or versatility
If piston pumps pump fluids with varying viscosities and pressures, then versatility is improved, but device complexity increases
Solution Approach 1:
The pump system uses a universal piston mechanism that can handle different fluid types (water, groundwater, fluids with varying viscosities) through the same basic chamber and piston structure. The mechanical blocking elements and valve arrangements are designed to work across different operating conditions, providing versatility without requiring multiple specialized pump designs.
Solution Approach 2:
The system employs dynamically controllable mechanical blocking elements that can open or close based on pressure differential and fluid properties. This dynamic adaptation allows the same pump structure to efficiently handle various fluid viscosities and pressure conditions, maintaining versatility while avoiding the complexity of fixed specialized designs for each fluid type.
3Reliability
If mechanical blocking elements are used for fluid control, then reliability is improved, but device complexity increases
Solution Approach 1:
The mechanical blocking elements are designed to automatically open or close based on pressure differential across the chambers, without requiring external actuation systems. The blocking elements respond to the natural pressure conditions during piston movement, providing reliable mechanical control while minimizing additional complex actuation mechanisms.
Solution Approach 2:
The mechanical blocking elements are integrated directly into the piston and chamber structure, combining the sealing, blocking, and valve functions into the existing mechanical components. This merging reduces the need for separate complex valve mechanisms while maintaining reliable mechanical control over fluid flow.
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
The solution enables flexible and efficient pumping of fluids, particularly water, with reduced pressure differences, a simple and robust construction, and reversible operation, suitable for both groundwater extraction and return, minimizing precipitation in groundwater circulation systems.
Implementation Method 1
A pneumatic or hydraulic drive is provided, by means of which opening and closing movements can be specified in order to convey the transport fluid through the hollow piston cylinder
Data Source
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AI summary
The invention relates to a piston pump (1) with a hollow cylinder (5) forming a piston housing and a piston axially displaceable within the hollow cylinder (5). The piston has a hollow cylinder (8) which has an outlet opening at its upper end and a first mechanical locking element at its lower end. The hollow cylinder (5) has a base (6) with a second mechanical locking element integrated therein, through which a transport fluid can be introduced into or discharged from a pressure chamber (19) of the hollow cylinder (5). The first mechanical locking element adjoins the pressure chamber (19). A pneumatic or hydraulic drive is provided, by means of which opening and closing movements can be controlled to pump the transport fluid (B) through the hollow cylinder (8).