Extrusion-Fixed Heat Tracing Hose for Freeze-Proof Water Flow
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Solution Overview
Problem
Existing heating hoses for outdoor water transportation face issues with reduced water transportation efficiency due to heat tracing bands inside the pipe, poor heat transfer efficiency from adhesive-based fixation, and difficulty in ensuring consistent attachment, leading to potential freezing and reliability problems in cold weather.
Innovation Solution
A heating anti-freezing hose with a heat tracing band fixed by extrusion molding, featuring a heating and fixing layer that integrates with the heat tracing band and anti-explosion reinforced layer, enhancing heat transfer and attachment, and incorporating a temperature control switch for efficient power management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the heat tracing band is arranged inside the water pipe, then the heating function is achieved, but the through-flow cross section is reduced and water transportation efficiency decreases
Solution Approach 1:
The heat tracing band is extracted from the interior of the water pipe and relocated to the exterior surface. This extraction resolves the contradiction by eliminating the occupation of internal space that reduced water flow cross-section, while maintaining the heating function through external attachment to the pipe surface.
2Reliability
If the heat tracing band is adhered to the outer side of the water pipe using glue, then the heat tracing band is fixed, but the glue reduces heat transfer efficiency and has poor heat stability
Solution Approach 1:
A fixing layer made of heat-resistant material serves as an intermediary between the heat tracing band and the water pipe. This intermediary layer replaces the inadequate glue with a material that can withstand high temperatures while maintaining strong adhesion, thus resolving both the attachment reliability and heat transfer efficiency issues.
3Reliability
If adhesive tape or binding tape is used to fix the heat tracing band, then the heat tracing band is secured, but it is difficult to ensure close attachment at all positions affecting heat transfer efficiency
Solution Approach 1:
The fixing layer is integrated with the water pipe and heat tracing band to form a unified structure. This merging eliminates the gaps and loose attachments caused by separate adhesive tapes or binding tapes, ensuring continuous close contact between the heat tracing band and the pipe surface, thereby improving both attachment reliability and heat transfer efficiency.
4Reliability
If adhesive tape or binding tape is used to fix the heat tracing band, then the heat tracing band is secured, but the extrusion force applied locally causes damage to the heat tracing band
Solution Approach 1:
The fixing function is segmented into a distributed fixing layer structure that spreads the attachment force across the entire surface area between the heat tracing band and the water pipe. This segmentation replaces the concentrated local extrusion force of adhesive tapes with a distributed force system, preventing damage to the heat tracing band while maintaining reliable attachment.
5Reliability
If multiple layers are sheathed in spiral winding mode, then protection and insulation are provided, but the preparation process becomes cumbersome and layer connection is insufficient
Solution Approach 1:
Multiple protective and insulating layers are merged into a single integrated extrusion molding process. This combining of layers into one manufacturing step eliminates the cumbersome sequential spiral winding operations, ensures sufficient connection between layers through simultaneous formation, and reduces overall process complexity while maintaining protective and insulating functions.
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 ensures stable water passage at -40°C with reduced power consumption and improved heat exchange efficiency, preventing freezing and ensuring reliable water supply, while simplifying production and reducing costs.
Implementation Method 1
a heating and fixing layer... wrapped on an outer side of the heat tracing band and the anti-explosion reinforced layer by pipe fitting extrusion molding
Implementation Method 2
The heating and fixing layer is wrapped on an outer side of the heat tracing band and the anti-explosion reinforced layer by pipe fitting extrusion molding
Data Source
AI summary
A heating anti-freezing hose with a heat tracing band fixed by extrusion molding comprises a heating hose body. The heating hose body comprises the heat tracing band, an inner water supply pipe, and a heating and fixing layer. One side of the heat tracing band is attached to an outer side of an anti-explosion reinforced layer. The heating and fixing layer is wrapped on an outer side of the heat tracing band and the anti-explosion reinforced layer by pipe fitting extrusion molding. According to the heating anti-freezing hose, the heating and fixing layer is formed on an outer side of the inner water supply pipe and the heat tracing band through a water pipe extruder, so that the inner water supply pipe is tightly combined with the heat tracing band. The heating and fixing layer has multiple functions of all-round protection of the heat tracing band.