Swimming Pool Water Circulation Layout for Low-Energy Filtration

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Solution Overview

Problem

Existing swimming pool water treatment systems face high energy consumption and noise levels due to the need to circulate and clean the entire water volume multiple times a day, exacerbated by complex systems and high pressure differences.

Innovation Solution

A water treatment system utilizing a filter unit connected to the swimming pool via communicating vessels, with circulation pumps installed near the pool wall and flush with the wall surface, and a filter material that separates harmful substances, aided by adjustable pumps and UV disinfection, to optimize water flow and reduce energy use.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a central circulation pump is used to circulate the entire water volume multiple times a day, then hygiene requirements are met, but energy consumption increases

Engineering Contradiction:
Improvehygiene requirementsVSAvoidenergy consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The patent divides the single central circulation pump into multiple smaller circulation pumps distributed at different locations in the swimming pool. Each pump handles a portion of the water circulation task, allowing for more efficient local circulation without the energy penalty of a single high-power pump maintaining high pressure throughout the entire system.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent implements a communicating vessels system where the pool and filter unit are connected such that water levels equalize naturally. This gravitational equilibrium reduces the pressure differential that pumps must overcome, significantly lowering energy consumption while maintaining effective water circulation and filtration.

Inventive Principle:
Principle #12Equipotentiality

2Productivity

If a central circulation pump delivers high output to meet circulation requirements, then water is circulated effectively, but noise level increases

Engineering Contradiction:
Improvewater circulation efficiencyVSAvoidnoise level
Core Design Contradiction:
ProductivityVSObject-generated harmful factors

Solution Approach 1:

By replacing one high-output central pump with multiple lower-output distributed pumps, the patent reduces the noise generated by any single pump unit. The segmented pump configuration achieves the same total circulation productivity while each individual pump operates at a quieter, more acceptable noise level for bathers.

Inventive Principle:
Principle #1Segmentation

3Productivity

If the system uses high pressure differences to drive water circulation, then water flows through the filter effectively, but technical complexity increases

Engineering Contradiction:
Improvefiltration efficiencyVSAvoidsystem complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The communicating vessels design creates a natural pressure equilibrium between the pool and filter unit through equalized water levels. This eliminates the need for complex high-pressure pumping systems, reducing technical complexity while maintaining effective filtration through gravity-assisted flow and simpler pump operations.

Inventive Principle:
Principle #12Equipotentiality

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 system reduces energy consumption and noise by optimizing water circulation and filtration, maintaining high water quality while meeting hygiene standards.

Implementation Method 1

a circulation pump is arranged at the end of each supply pipe closest to the swimming pool

Methodology Applied
Scientific EffectPump: Pump

Implementation Method 2

a filter element made of a filter material for liquid media... the filter material is formed from a plurality of continuous fibers

Methodology Applied
Scientific EffectFiltration: Filter (physical)

Implementation Method 3

the swimming pool and the filter unit are physically arranged according to the concept of communicating vessels

Methodology Applied
Scientific EffectGravitation: Gravitation

Data Source

PatentEP4667681A1Installation for treating water for a swimming pool
Publication Date: 2025.12.24 BINDER SIEGFRIED
  • EP4667681A1 patent drawingFigure 1
  • EP4667681A1 patent drawingFigure 2
  • EP4667681A1 patent drawingFigure 3~4

AI summary

The present invention presents a system (1) and an adapted method for treating swimming pool water (4) of a swimming pool (2), which improves both the energy efficiency of the system (1) and the water quality of the swimming pool water (4). The system (1) consists of a conventional swimming pool (2) and a filter unit (3), which, together with pipes (6, 10), form a type of communicating vessels in a water circuit. The filtered water from the filter unit (3) is supplied to the swimming pool (2) via a plurality of pipes (6) and pumps (7), the pumps (7) being arranged near the bottom in the lower region of a swimming pool wall (8).