Motorized Pumpjack for Intermediate-Depth Aquifer Irrigation
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Solution Overview
Problem
Smallholder farmers in developing nations face economic barriers in irrigating crops during the dry season due to the depth of subterranean water being beyond the reach of affordable suction pumps, with existing lift pumps requiring excessive manual effort or being too expensive.
Innovation Solution
A mechanical pumpjack system capable of reciprocating pump rods to raise water from intermediate-depth aquifers (25 to 75 feet) using affordable components, with a mobile design and adaptable power sources, including 4-stroke engines and DC motors, to efficiently supply significant water quantities while reducing manual labor and costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If suction pumps are used to raise water from deep aquifers, then water can be supplied for irrigation, but the pumps become prohibitively expensive and require excessive manual effort
Solution Approach 1:
The patent replaces manual mechanical pumping systems with a motorized pumpjack system. The motorized reciprocating pump uses an electric motor or engine to drive the pump rod, eliminating the need for excessive manual effort while maintaining the capability to raise water from intermediate-depth aquifers (25-75 feet).
Solution Approach 2:
The pumpjack system employs a reciprocating motion mechanism where the pump rod moves up and down in a vertical stroke. This dynamic reciprocating action allows the pump to efficiently raise water from depth by creating pressure differentials during each stroke, improving water supply quantity while reducing the continuous manual effort required compared to static lift pumps.
2Quantity of substance
If lift pumps are used to raise water from intermediate-depth aquifers, then water can be supplied, but the purchase price and operating cost become prohibitively expensive
Solution Approach 1:
The pumpjack system is designed as a modular, segmented structure with separate components including the frame, motor mount, pump rod, and reciprocating mechanism. This segmentation allows for simpler manufacturing and assembly, reducing the purchase price while maintaining the capability to supply significant water quantities from intermediate-depth aquifers.
Solution Approach 2:
The patent employs a simple, affordable reciprocating pump mechanism that can be manufactured at low cost using basic mechanical components. The design prioritizes economic viability with a focus on reducing both purchase price and operating cost, making the system accessible to smallholder farmers while still achieving meaningful water supply quantities.
3Quantity of substance
If manual lift pumps are used, then water can be raised from depth, but the manual effort required becomes excessive
Solution Approach 1:
The patent replaces manual mechanical energy input with motorized power sources. The reciprocating pump is driven by an electric motor or engine that provides the necessary mechanical energy to raise water from intermediate depths, dramatically reducing the manual energy input required while maintaining or increasing water supply quantities.
4Quantity of substance
If conventional pump systems are used for intermediate-depth aquifers, then water can be raised, but the systems become too complex and expensive
Solution Approach 1:
The pumpjack system divides the pumping function into distinct, simple segments: the frame structure, motor mounting platform, reciprocating pump mechanism, and water discharge system. This segmentation simplifies the overall design and reduces system complexity while maintaining the capability to supply water from intermediate-depth aquifers.
Solution Approach 2:
The patent extracts and eliminates unnecessary complex components from conventional pump systems. The design uses a simplified reciprocating mechanism rather than complex multi-stage pumps, removing excess complexity while retaining the essential function of raising water from 25-75 foot depths.
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 pumpjack system increases water yield significantly, reduces operational costs, and can be easily moved and installed, providing an economically viable solution for irrigation and mechanizing water supply from existing well locations, enhancing agricultural productivity.
Implementation Method 1
A pump rod may be connected to a traveling valve assembly and foot valve positioned in the well below the pump cylinder. The pump rod may be reciprocated up and down in a vertical stroke to displace water from the well.
Implementation Method 2
The pump rod may be connected to a traveling valve assembly and foot valve positioned in the well below the pump cylinder.
Implementation Method 3
The pumpjack is capable of reciprocating the pump rod strings of lift-pump cylinders and plunger pumps installed in intermediate-depth aquifers to supply significant amounts of water
Data Source
AI summary
A pump comprises a frame and a docking platform connected to the frame. A motor is mounted to the docking platform and has a rotatable drive shaft extending therefrom. Roller bearings are mounted to cross beams attached to the frame. A vertically reciprocable slide bar driven is reciprocable through the at least one pair of roller bearings. A pump rod connector is attached to the slide bar and connectable to a pump rod extending into a well.