Dissolving Solid Substances in Water Using Recirculation Jets

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Solution Overview

Problem

Existing devices for dissolving solid chemical substances in water, such as calcium hypochlorite, often result in deposit formation due to incomplete dissolution, requiring frequent manual intervention and energy-intensive agitation, which increases operational costs and risks damage from corrosion and salt deposits.

Innovation Solution

A device with a cylindrical container, a charging chamber for solid substances, and a liquid-dispersing unit that directs water jets to dissolve the substances gradually, combined with a recirculation system that maintains continuous flow and agitation, reducing deposit formation by controlling water flow based on concentration levels and using a differential float valve to regulate water levels.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-generated harmful factors

If mechanical agitators or nozzle agitators are used to keep chlorinated water in agitation, then deposit formation is reduced, but device complexity increases and energy consumption increases

Engineering Contradiction:
Improvedeposit formationVSAvoiddevice complexity
Core Design Contradiction:
Object-generated harmful factorsVSDevice complexity

Solution Approach 1:

The system uses the chlorinated water itself to agitate and dissolve solid substances through recirculation and jet injection, eliminating the need for external mechanical agitators or blowers. The water flow performs the agitation function that would otherwise require separate mechanical devices.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The invention employs hydraulic principles by using pressurized water jets to create agitation and promote dissolution. The recirculation system uses pump-driven water flow to maintain movement and prevent deposits, replacing mechanical agitation with hydraulic action.

Inventive Principle:
Principle #29Pneumatics and hydraulics

2Object-generated harmful factors

If mechanical agitators or nozzle agitators are used to keep chlorinated water in agitation, then deposit formation is reduced, but energy consumption increases

Engineering Contradiction:
Improvedeposit formationVSAvoidenergy consumption
Core Design Contradiction:
Object-generated harmful factorsVSUse of energy by moving object

Solution Approach 1:

The chlorinated water performs the agitation function itself through recirculation, eliminating the need for energy-intensive mechanical agitators. The system uses the water's own flow to prevent deposits and maintain dissolution.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The recirculation system maintains continuous water flow and agitation, ensuring constant dissolution and preventing deposits without the need for periodic high-energy mechanical intervention. The continuous low-energy pump operation replaces intermittent high-energy mechanical agitation.

Inventive Principle:
Principle #20Continuity of useful action

3Ease of operation

If floats with immersed mechanisms are used to regulate water levels, then water level control is achieved, but reliability decreases due to corrosion and salt deposits

Engineering Contradiction:
Improvewater level controlVSAvoidreliability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The float mechanism is extracted from the corrosive environment by positioning it above the liquid level. The float operates in air rather than being immersed in chlorinated water, eliminating exposure to corrosion and salt deposits while maintaining water level control functionality.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

A rod or linkage acts as an intermediary between the float and the valve mechanism. The float moves in air and transmits motion through the intermediary to control the valve, isolating the float from direct contact with corrosive water while maintaining control function.

Inventive Principle:
Principle #24Intermediary (Mediator)

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 effectively minimizes deposit formation, reduces the need for manual intervention, and lowers energy consumption by maintaining continuous operation and preventing corrosive contact with concentrated solutions, thus enhancing the efficiency and reliability of water treatment systems.

Implementation Method 1

a liquid-dispersing unit set above the bottom wall and designed to direct at least one jet of water towards the solid chemical substance

Methodology Applied
Scientific EffectDispersion: Dispersion (of waves)

Implementation Method 2

direct at least one jet of water towards the solid chemical substance

Methodology Applied
Scientific EffectFluid jet impingement: Jet

Implementation Method 3

a recirculation system set inside the container and designed to maintain the aqueous solution contained in the collection portion in a state of constant agitation

Methodology Applied
Scientific EffectConvection: Convection

Implementation Method 4

differential float valve, the mechanism of which is arranged above the maximum level and which is designed to regulate the feed of water into the container as a function of the height of the aqueous solution

Methodology Applied
Scientific EffectBuoyancy: Archimedes' Principle (Buoyancy)

Data Source

PatentEP2406188B1Method and device for dissolving solid substances in water
Publication Date: 2014.06.18 MARCHI & BREVETTI INTERPRISE
  • EP2406188B1 patent drawingFigure 1~3
  • EP2406188B1 patent drawingFigure 4~9
  • EP2406188B1 patent drawingFigure 10~16

AI summary

A device (1) for dissolving a solid chemical substance (2) in water to obtain an aqueous solution, said device (1) comprising: a container (3) having a collection portion (8) for containing the solution and a charging chamber (10) designed to contain the substance (2); and a liquid-dispersing unit (14) for directing a jet of water onto the substance (2); the device (1) further comprises a feeding unit (17) for feeding water to the collection portion (8) from a hydraulic circuit (6) and a discharging unit (5) for conveying the solution from the container (3) to the hydraulic circuit (6); the discharging unit (5) being designed to feed the solution to the hydraulic circuit (6) in a substantially continuous way.