Submersible Pump Buoyancy Control and Retrieval System

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Solution Overview

Problem

Submersible pumps installed at the bottom of bodies of water face challenges such as difficult installation, susceptibility to being turned over, limited accessibility for cleaning, and difficulty in reorientation or removal, especially when silt depth is unknown, leading to potential sinking or absorption.

Innovation Solution

A submersible pump apparatus with a housing, floats providing positive buoyancy, and a sled for support at the bottom, along with a finder float system that allows for controlled submersion and retrieval by adjusting buoyancy with weights, ensuring stable orientation and preventing sinking into silt.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If submersible pumps are installed at the bottom of bodies of water, then water circulation and aeration functions are achieved, but installation becomes difficult and the pumps are susceptible to being turned over or sinking into silt

Engineering Contradiction:
Improvefunctional performanceVSAvoidinstallation ease
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent employs floats providing positive buoyancy as counterweights to prevent the pump from sinking into silt. The buoyant force generated by the floats counteracts the downward force of gravity on the pump assembly, maintaining the pump at the desired depth without embedding into the substrate.

Inventive Principle:
Principle #8Anti-weight (Counterweight)

Solution Approach 2:

The finder float system is pre-configured with ropes and weights to enable controlled submersion and retrieval. The weights are pre-attached to the finder float, allowing operators to easily control the pump's position during installation and maintenance without complex equipment.

Inventive Principle:
Principle #10Preliminary action

2Reliability

If submersible pumps are installed at the bottom of bodies of water, then water circulation is achieved, but accessibility for cleaning and maintenance becomes limited

Engineering Contradiction:
Improvefunctional performanceVSAvoidmaintenance accessibility
Core Design Contradiction:
ReliabilityVSEase of repair

Solution Approach 1:

The finder float acts as an intermediary device that extends the operator's reach to the submerged pump. By attaching ropes to the pump and securing them to the finder float at the surface, operators can control, retrieve, and maintain the pump without directly entering the water or using complex underwater equipment.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Reliability

If submersible pumps are installed at the bottom of bodies of water, then aeration function is achieved, but the pumps are difficult to reorient or remove

Engineering Contradiction:
Improvefunctional performanceVSAvoidrepositioning flexibility
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent creates a dynamic system where the pump's position and orientation can be easily adjusted. The combination of floats providing stable buoyancy and weights providing controlled sinking allows the pump to be repositioned by simply adding or removing weights from the finder float, enabling quick adaptation to different operational requirements.

Inventive Principle:
Principle #15Dynamics

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

Enables easy and stable installation, operation, and retrieval of the submersible pump, maintaining orientation and preventing sinking into silt, thereby addressing the installation and accessibility issues of existing submersible pumps.

Implementation Method 1

A float or a plurality of floats are attached to the top side of the housing for providing a positive buoyancy to the submersible pump apparatus

Methodology Applied
Scientific EffectBuoyancy: Archimedes' Principle (Buoyancy)

Implementation Method 2

The weight is used to overcome the positive buoyancy of the float and achieve a negative buoyancy for submerging the submersible pump apparatus to the bottom of the body of water

Methodology Applied
Scientific EffectGravity: Gravitation

Data Source

PatentUS7713031B2Submersible pump apparatus and method for using same
Publication Date: 2010.05.11 AQUA CONTROL INC
  • US7713031B2 patent drawing
  • US7713031B2 patent drawing
  • US7713031B2 patent drawing

AI summary

A submersible pump apparatus comprising a housing containing all the components of the pump assembly for using the submersible pump apparatus in a body of water. A float or a plurality of floats are attached to the top side of the housing for providing a positive buoyancy to the submersible pump apparatus. The float is provided with a channel for slidably receiving a single weight or a plurality of weights. The weight is used to overcome the positive buoyancy of the float and achieve a negative buoyancy for submerging the submersible pump apparatus to the bottom of the body of water. A sled is attached to the bottom side of the housing and comprises the combination of both legs and feet for supporting the submersible pump apparatus at the bottom of a body of water. A finder float floating at the water surface level is attached using a rope to both the weight and the housing. By removing the weight or weights from the float, a positive buoyancy is restored to raise the submersible pump apparatus.