Heated Whip Hose Layout for Flexibility and Bend Durability
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Solution Overview
Problem
Conventional heated whip hoses are less durable, less flexible, and heavier due to the full-length extension of electrical heating elements, which often fail at the bend near the hand-held sprayer and require electrical connections that are prone to wear and failure.
Innovation Solution
A multi-layered heated whip hose design with a heating element extended only partially along the hose, featuring a hose core, a heating element, a protective layer, an insulating layer, and an abrasion protection layer, where the heating element is helically wound around the hose core and folds back to eliminate the need for electrical connections at the discharge end, reducing wear and enhancing flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If heating elements extend full length of whip hose, then fluid temperature is maintained, but durability decreases and failure risk increases at bent sections
Solution Approach 1:
The heating element is segmented into multiple sections along the whip hose, with different heating zones and insulation levels. This allows the heating element to be present only where thermally critical, reducing exposure to mechanical stress at bend-prone areas while maintaining fluid temperature where needed.
Solution Approach 2:
Different sections of the whip hose receive different levels of heating and insulation based on local thermal requirements. The heating element density and insulation thickness vary along the length of the hose, providing targeted thermal management that reduces overall heating element exposure to mechanical stress.
2Temperature
If heating elements extend full length of whip hose, then fluid temperature is maintained, but weight increases
Solution Approach 1:
The heating system is divided into discrete heated zones rather than continuous full-length heating. This segmentation allows weight reduction in non-critical sections while maintaining thermal performance where required.
Solution Approach 2:
Thermal management resources (heating elements and insulation) are concentrated in specific locations along the whip hose where temperature maintenance is critical, rather than uniformly distributed. This local quality approach reduces overall weight while maintaining fluid temperature where needed.
3Temperature
If heating elements extend full length of whip hose, then fluid temperature is maintained, but flexibility decreases
Solution Approach 1:
The whip hose is divided into heated and unheated sections, with the heating element present only in thermally critical zones. This segmentation removes rigid heating elements from flexible sections, improving overall hose flexibility while maintaining temperature where required.
Solution Approach 2:
The heating element and insulation are applied locally only where thermal maintenance is critical, leaving other sections with full flexibility. This creates a gradient of properties along the hose length, optimizing both thermal performance and mechanical flexibility in different zones.
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 improves durability and flexibility while reducing weight, minimizing the likelihood of heating element failure and wear, and maintains thermal performance by directing radiant heat towards the hose core, thus maintaining fluid temperature effectively.
Implementation Method 1
Electrical heating elements typically extend a full length of the whip hose
Implementation Method 2
an insulating layer disposed around the protective layer
Data Source
AI summary
A heated whip hose (10) includes a hose core (12) configured to deliver a fluid, a heating element (16) disposed around the hose core, a protective layer (20) disposed around the heating element and hose core, an insulating layer (22, 24) disposed around the protective layer, and an abrasion protection layer (26) disposed around insulating layer and forming an outer sheath.