Pitless Well Adaptor Flow Divider for Pressure Loss Reduction
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Solution Overview
Problem
Pitless well construction faces challenges with leakage and pressure moment-induced deterioration at the joint between coupling members due to non-threaded connections, leading to inefficiencies and accelerated seal deterioration, especially under pressure changes during pump operation.
Innovation Solution
A spool with a high-efficiency flow divider having a generally arched profile at the top, which reduces pressure head loss by effectively diverting water flow from vertical to horizontal, ensuring a sealed and durable connection between the well casing and the delivery pipe.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If non-threaded coupling members are used to simplify the connection structure, then device complexity is reduced, but leakage occurs and seal deterioration accelerates under pressure
Solution Approach 1:
The coupling device is divided into separate components: a first coupling member with external threads that inserts into the well casing, and a second coupling member with internal threads that attaches to the drop pipe. These segmented components with complementary threading provide threaded connections at each interface, eliminating leakage while maintaining structural simplicity.
2Ease of repair
If releasable fitting is used to allow easy removal for servicing, then ease of repair is improved, but play in the joint occurs under pressure moment causing leakage
Solution Approach 1:
The coupling members are designed with threaded connections that provide dynamic adaptability. The threads engage flexibly to accommodate pressure moments while maintaining seal integrity, and the overall assembly can be easily disassembled for servicing. This dynamic design resolves the contradiction between ease of repair and joint stability under pressure.
3Device complexity
If traditional flow divider is used in spool, then device complexity is low, but pressure head loss is high reducing pump efficiency
Solution Approach 1:
The flow divider incorporates a curved or arched profile in its structure, which smoothly directs water flow from vertical to horizontal movement. This curved geometry reduces turbulence and pressure head loss compared to traditional angular or flat flow dividers, while the overall design remains relatively simple and integrated into the spool assembly.
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 significantly reduces pressure head loss, decreases power consumption of the submersible pump, and minimizes the need for additional booster stations, resulting in lower electrical power consumption and emissions.
Implementation Method 1
a flow divider comprising a generally arched profile at the top of the spool... effectively diverting water flow from vertical to horizontal
Data Source
AI summary
In various exemplary embodiments, the present disclosure relates to a flow divider in a spool for a pitless adaptor included in a booster station and/or well construction. The flow divider has a generally triangular shaped cross-section that efficiently helps direct water flow from a vertical to a horizontal direction reducing pressure head lost in the spool and thereby increasing the energy efficiency of the system. In various exemplary embodiments, the flow divider may have a variety of cross-sectionals shapes and sizes depending on the size and requirements of the well or booster station.