Wastewater Float Valve Filtration to Prevent Flotsam Clogging

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Solution Overview

Problem

Wastewater systems face issues with flotsam buildup and float valve implosion, leading to ARV inefficiency and operational problems in sewage pipelines.

Innovation Solution

A wastewater valve arrangement with a filtration receptacle, filter, and float valve that prevents flotsam clogging and implosion, featuring a mesh wall, inlet tube, and a float with an underside recess to manage air and wastewater flow.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a traditional float valve is used in an air release valve, then air can be released and ingress relative to the receptacle, but flotsam builds up within the receptacle and clogs the float valve, rendering the ARV ineffectual

Engineering Contradiction:

ImproveARV operation reliabilityVSAvoidflotsam clogging

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The ARV is divided into two separate receptacles: a first receptacle that receives raw wastewater and a second receptacle that receives filtered wastewater. This segmentation allows flotsam to be trapped in the first receptacle while the second receptacle remains clean, preventing clogging of the float valve and maintaining reliable operation.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

A filter is introduced as an intermediary component between the first and second receptacles. The filter captures flotsam from the wastewater flow, preventing it from reaching the float valve mechanism. This intermediary element resolves the contradiction by allowing air release functionality while blocking harmful flotsam.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If a sealed ball float is used, then the float can rise with wastewater level to close the valve, but the float can implode or burst in the event of excess pressure in the receptacle

Engineering Contradiction:

Improvefloat valve performanceVSAvoidfloat pressure resistance

Core Design Contradiction:

ReliabilityVSStrength

Solution Approach 1:

Instead of using a sealed float that resists pressure from the outside, the invention uses an open float design where the float chamber is vented to atmosphere. This inverts the pressure differential problem: rather than external pressure crushing the float, the float is designed to handle atmospheric pressure on both sides, eliminating the implosion risk while maintaining the ability to rise and close the valve.

Inventive Principle:

Principle #13The other way round (Inversion)

3Reliability

If the receptacle interior is cleaned periodically to remove flotsam, then flotsam buildup is prevented, but maintenance effort and time increase significantly

Engineering Contradiction:

ImproveARV operation reliabilityVSAvoidmaintenance time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The filter automatically performs the function of flotsam removal from the wastewater stream, eliminating the need for manual cleaning intervention. The system self-maintains by separating flotsam through the filter mechanism, significantly reducing maintenance time and effort while ensuring continuous reliable operation.

Inventive Principle:

Principle #25Self-service

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

Prevents clogging and float implosion, ensuring reliable operation by filtering out flotsam and maintaining float stability, thus reducing maintenance and enhancing system performance.

Implementation Method 1

A wastewater valve arrangement with a filtration receptacle, filter, and float valve that prevents flotsam clogging

Methodology Applied

Scientific EffectFiltration: Filter (physical)

Implementation Method 2

The float valve further includes a float which rises with the wastewater level in the receptacle, to close the valve and thereby prevent wastewater from exiting the ARV

Methodology Applied

Scientific EffectBuoyancy: Archimedes' Principle (Buoyancy)

Data Source

PatentEP2297497B1A wastewater valve arrangement

Publication Date: 2025.07.16 ODOUR TECHNOLOGIES PTY LTD

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AI summary

The present invention relates to a wastewater valve arrangement. The valve arrangement includes a first receptacle for receiving a filter to filter wastewater. A second receptacle receives the filtered wastewater. A valve is provided for impeding the egress of filtered wastewater from the second receptacle. In one embodiment, the valve is configured to be normally open, and is configured to permit the release and ingress of air relative to the second receptacle. The valve may include a float that defines a recess.