Emergency Showerhead Flow Rotation for Uniform Spray and Blockage Resistance
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Solution Overview
Problem
Existing emergency showerheads often suffer from non-uniform spray patterns and are prone to blockages due to dirt or deposits, which can reduce their effectiveness in emergency situations.
Innovation Solution
A showerhead design featuring a flow rotation control element that separates the fluid flow into axial and rotating portions, using a single large outlet to create a uniform spray pattern and minimize blockages, with a flow volume control element to regulate water flow and a diverter to redirect the flow, ensuring consistent water distribution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a traditional showerhead design with multiple outlets is used, then the spray coverage area is increased, but the likelihood of blockage from dirt or deposits increases
Solution Approach 1:
The invention segments the water flow path into multiple controlled outlets (first outlet portion and second outlet portion) that direct flow in different patterns, while maintaining a single large inlet opening. This allows the system to achieve wide spray coverage through controlled flow division without having multiple small inlet openings that are prone to blockage.
2Reliability
If a single outlet design is used, then blockage resistance is improved, but the spray pattern uniformity deteriorates
Solution Approach 1:
The invention uses a flow rotation control element that dynamically divides the water flow into two portions: one that exits axially and another that exits with rotation. This dynamic flow control creates a uniform spray pattern from a single outlet by varying the flow direction and velocity distribution, while maintaining blockage resistance through the single large inlet opening.
3Stability of the object's composition
If multiple outlets are provided for uniform spray, then spray pattern uniformity is improved, but the complexity of the device increases
Solution Approach 1:
The invention merges the functions of multiple outlets into a single outlet structure that incorporates both axial and rotating flow paths. The flow rotation control element integrates the spray pattern control functionality within the single outlet, reducing structural complexity while achieving uniform spray distribution through controlled flow division.
4Stability of the object's composition
If a flow rotation control element is added, then spray pattern uniformity is improved, but the device complexity increases
Solution Approach 1:
The flow rotation control element is designed to automatically divide and direct water flow based on its internal geometry, without requiring external control mechanisms or additional energy input. The element passively creates the uniform spray pattern through its structure, reducing overall system complexity while achieving the desired spray uniformity.
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 design provides a more uniform and reliable spray pattern, reducing the likelihood of blockages and ensuring effective water distribution, meeting international safety standards and improving washdown efficiency in emergency situations.
Implementation Method 1
The outlet comprises a first outlet portion and a second outlet portion. The first outlet portion guides the first portion of the flow out of the first control element as an axial flow. The second outlet portion provides rotation to the second portion of the flow relative to the axial flow.
Implementation Method 2
At least one member extends across the annular opening and has a deflection surface angled relative to the direction of the first portion of the flow so that liquid deflects off the deflection surface during use.
Data Source
AI summary
An apparatus for controlling a flow of fluid in an emergency fixture is disclosed. The apparatus includes a body and a control element at least partially located in the body and configured to impart rotation into the fluid flow. The control element includes an inlet that receives the fluid flow. The control element also includes a first outlet portion configured to guide a first portion of the fluid flow out of the control element as an axial flow and a second outlet portion configured to provide rotation to a second portion of the fluid flow relative to the axial flow. The first portion of the fluid flow exits the control element at a position downstream from the position that the second portion of the fluid flow exits the control element.