Integrated Steam Nozzle Layout for Fast, Low-Condensation Drying

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Conventional steam spraying apparatuses are inefficient in generating steam quickly and maintaining sufficient pressure, leading to condensation issues and inadequate steam distribution in clothing drying machines, which results in prolonged drying times and potential clothing damage.

Innovation Solution

A steam spraying apparatus with a flow passage forming unit that heats water as it flows, using a nozzle integrated with the flow passage unit to generate steam at a higher pressure, reducing condensation and ensuring steam reaches clothing effectively.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of time

If water is heated in a container to generate steam, then steam is produced, but steam generation time is prolonged and power consumption increases

Engineering Contradiction:
Improvesteam generation timeVSAvoidpower consumption
Core Design Contradiction:
Loss of timeVSUse of energy by moving object

Solution Approach 1:

The invention extracts the steam generation process from a separate container and integrates it directly into the flow passage where water flows. The heating element is positioned within the flow passage to heat water as it moves, eliminating the need for a separate container and reducing steam generation time and energy consumption.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The invention performs preliminary heating of water as it flows through the flow passage before the water reaches the end of the passage. This preliminary action ensures that water is already heated and ready for rapid steam generation when needed, reducing overall steam generation time and energy requirements.

Inventive Principle:
Principle #10Preliminary action

2Reliability

If steam is generated in a container and transported through a hose to the nozzle, then steam can be sprayed, but heat loss occurs causing condensation and reducing spray pressure

Engineering Contradiction:
Improvesteam spray pressureVSAvoidheat loss
Core Design Contradiction:
ReliabilityVSLoss of energy

Solution Approach 1:

The invention merges the steam generation process with the flow passage structure. The heating element, flow passage, and nozzle are integrated into a single unit, eliminating the separate hose connection. This integration prevents heat loss during transport and maintains steam pressure and temperature from generation to spray.

Inventive Principle:
Principle #5Merging (Combining)

3Ease of operation

If the nozzle is disposed outside the drum in washing machines, then the drum can rotate freely, but steam cannot reach the clothing effectively

Engineering Contradiction:
Improvedrum rotationVSAvoidsteam reachability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The invention makes the nozzle dynamic by integrating it with the rotating drum structure. The nozzle rotates together with the drum, ensuring that steam is continuously directed toward the clothing throughout the drum's rotation cycle. This dynamic positioning maintains both drum rotation freedom and effective steam delivery.

Inventive Principle:
Principle #15Dynamics

4Productivity

If high-temperature steam is sprayed onto clothing, then drying efficiency is improved, but clothing may be damaged

Engineering Contradiction:
Improvedrying efficiencyVSAvoidclothing damage
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The invention changes the temperature parameter of the steam by controlling the heating process and water flow rate. The system generates steam at optimized temperatures that balance drying efficiency with clothing safety, preventing excessive heat damage while maintaining effective drying performance.

Inventive Principle:
Principle #35Parameter changes

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 apparatus significantly reduces steam generation time, minimizes power consumption, and prevents clothing damage by maintaining a lower steam temperature and higher spray pressure, ensuring efficient and effective steam distribution within the clothing drying machine.

Implementation Method 1

water is heated until steam is generated through the phase change of water

Methodology Applied
Scientific EffectPhase change: Phase Change

Implementation Method 2

a steam generating heater applying heat to water flowing along the flow passage

Methodology Applied
Scientific EffectHeating: Heating

Implementation Method 3

the spray pressure of the nozzle is completely dependent on the volume expansion induced by the generation of steam in the container

Methodology Applied
Scientific EffectVolume expansion:

Data Source

PatentEP2703542B1Steam spraying apparatus and clothing drying machine including the same
Publication Date: 2018.03.21 LG ELECTRONICS INC
  • EP2703542B1 patent drawingFigure 1
  • EP2703542B1 patent drawingFigure 2
  • EP2703542B1 patent drawingFigure 3

AI summary

Provided are a steam spraying apparatus and a clothing drying machine including the same. The steam spraying apparatus include a flow passage forming unit (160, 660), a steam generating heater (130, 630), and a nozzle (170, 670). The flow passage forming unit (160, 660) has a flow passage for guiding water introduced through an inlet to an outlet. The steam generating heater (130, 630) applies heat to water flowing along the flow passage. A nozzle (170, 670) sprays steam generated by the heating of the steam generating heater (130, 630) at a certain pressure.