Well Pump System With Dual Rod Backup and Bleeder Valve
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Solution Overview
Problem
Existing well pump systems face challenges in efficiently and reliably accessing groundwater, particularly in maintaining continuous water supply during power outages and in ensuring effective water management between the surface and underground aquifers.
Innovation Solution
A well pump system comprising piping with a connector forming a longitudinal passage, adjustable valves for controlling water flow, and a dual rod mechanism for operating the pump, which includes a backup mechanism for emergency operation and a bleeder valve to manage water levels, ensuring continuous operation and efficient water management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a pump system is installed in a borehole to access groundwater, then water supply reliability is improved, but the system becomes vulnerable to power outages and operational interruptions
Solution Approach 1:
The system performs preliminary actions by establishing a backup rod mechanism that can be deployed when power fails. The connector with ports and the second rod are pre-positioned to enable immediate manual operation without requiring system reconfiguration during emergencies.
Solution Approach 2:
The system changes operational parameters from automated electric pump operation to manual rod operation. The valve mechanism allows switching between powered and manual modes, changing the operational state from automatic to manual control.
2Reliability
If piping is installed between surface and borehole to transport water, then water access is improved, but water level management and overflow control become problematic
Solution Approach 1:
The bleeder valve provides feedback-based water level management by allowing operators to monitor and adjust water levels in the connector. When water accumulates to problematic levels, the valve enables controlled release back into the borehole, creating a feedback loop for level management.
Solution Approach 2:
The system uses self-service through the bleeder valve mechanism that allows the system to regulate its own water levels without external intervention. The valve enables the system to bleed excess water automatically or manually based on observed conditions.
3Device complexity
If a single rod mechanism is used to operate the pump, then device complexity is reduced, but operational reliability during emergencies is compromised
Solution Approach 1:
The rod mechanism is segmented into two separate rods: a first rod for normal operation and a second rod for emergency operation. This segmentation allows each rod to be optimized for its specific function while maintaining overall system reliability through redundancy.
Solution Approach 2:
The system provides beforehand cushioning by having a pre-positioned second rod and connector that can immediately take over if the primary rod fails. The backup components are ready in advance to cushion against operational failures.
4Adaptability or versatility
If valves are added to control water flow in the piping, then water management capability is improved, but device complexity increases
Solution Approach 1:
The valve mechanism serves multiple functions: it controls water flow direction, enables the bleeder function for level management, and works with both the first and second rods for operation. This multi-functionality reduces the need for separate components for each function.
Solution Approach 2:
The valve acts as an intermediary between the pump, piping, and borehole, mediating water flow control. The actuator serves as an intermediary that translates rod movement into valve position changes, providing controlled water management without direct mechanical connection throughout the system.
Data Source
AI summary
A well pump system can include piping having an end positioned proximate to an entrance end of a borehole (e.g., a water well), and piping having an end positioned proximate to an opposing end of the borehole. A connector can couple the piping together, where the connector has ports for aligning the piping to form a longitudinal passage. The well pump system may further include a valve in the piping that can open and close the longitudinal passage with an actuator to be actuated from the entrance end of the borehole. A pump may be coupled to the piping, and a rod can be used to operate the pump. An end of the rod can be positioned between the opposing end of the borehole and the valve and connected to a second rod inserted through the longitudinal passage when the valve is open to operate the pump.