Infiltration Intake Backwash Mechanism Wastewater Discharge Control

Solution Overview

Problem

Existing infiltration intake systems require additional components and a complex structure to prevent wastewater from reaching the filter of another structural body during backwash, increasing the number of components and structural complexity.

Innovation Solution

An infiltration intake system with a structural body that includes a filter storage portion, a water guide portion, and a backwash mechanism with a wastewater discharge direction control portion, which directs wastewater away from other filters during backwash, eliminating the need for a separate discharge pipe and driving source.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a separate discharge pipe and driving source are provided to prevent wastewater from reaching another filter during backwash, then the reliability of preventing wastewater contamination is improved, but the device complexity and number of components increase

Engineering Contradiction:

Improveprevention of wastewater contaminationVSAvoidstructure complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The discharge function is merged with the backwash mechanism by integrating the discharge direction control portion into the backwash mechanism portion. The backwash mechanism portion simultaneously performs backwash water injection and wastewater discharge direction control, eliminating the need for separate discharge pipes and driving sources while maintaining contamination prevention reliability

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The backwash mechanism portion is designed to perform multiple functions: injecting backwash water into the filter and controlling the discharge direction of wastewater. This multi-functional design allows a single component to replace what would traditionally require separate specialized components, reducing overall system complexity

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Reliability

If a separate discharge pipe and driving source are provided to control wastewater discharge direction, then the reliability of preventing wastewater contamination is improved, but the number of components increases

Engineering Contradiction:

Improveprevention of wastewater contaminationVSAvoidnumber of components

Core Design Contradiction:

ReliabilityVSQuantity of substance

Solution Approach 1:

The discharge function is merged with the backwash mechanism by integrating the discharge direction control portion into the backwash mechanism portion. The backwash mechanism portion simultaneously performs backwash water injection and wastewater discharge direction control, eliminating the need for separate discharge pipes and driving sources while maintaining contamination prevention reliability

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The backwash mechanism portion is designed to perform multiple functions: injecting backwash water into the filter and controlling the discharge direction of wastewater. This multi-functional design allows a single component to replace what would traditionally require separate specialized components, reducing overall system complexity

Inventive Principle:

Principle #6Universality (Multi-functionality)

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 effectively inhibits wastewater from reaching other filters during backwash while reducing the number of components and structural complexity, ensuring efficient wastewater discharge and preventing foreign matter from re-entering the filtration process.

Implementation Method 1

a backwash mechanism portion washing the filter by refluxing water or air from a treated water side of the filter toward a raw water side

Methodology Applied

Scientific EffectReflux:

Implementation Method 2

a wastewater discharge direction control portion controlling a discharge direction for wastewater discharged from the filter toward the raw water side to a prescribed wastewater discharge direction

Methodology Applied

Scientific EffectFluid flow direction control:

Data Source

PatentUS10272366B2Infiltration intake system

Publication Date: 2019.04.30 HITACHI ZOSEN CORP

AI summary

In this infiltration intake system, a structural body integrally includes a waster discharge direction control portion controlling a discharge direction for wastewater discharged from a filter toward a raw water side at a backwash time with a backwash mechanism portion in a prescribed wastewater discharge direction.