Segmented Pipe Heater Structure for Lower Heat Loss
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Solution Overview
Problem
Existing pipe heaters experience increased heat loss due to small contact areas between longitudinal cutting planes, leading to reduced temperature uniformity and difficulties in installing heating wires, which can result in by-products being fixed to the inner wall of the pipe.
Innovation Solution
A pipe heater design featuring a heater body with increased contact areas between longitudinal cutting planes, formed by longitudinal and circumferential cutting lines, and a restraint mechanism using Velcro tapes to maintain these planes close together, along with heating wires installed on bidirectional segments to reduce heat loss and enhance temperature uniformity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If longitudinal cutting planes are formed in the heater body part, then the heater can be installed on pipes of various diameters, but heat loss increases due to small contact areas between the cutting planes
Solution Approach 1:
The heater body part is divided into multiple longitudinal segments by forming longitudinal cutting lines, allowing the heater to be expanded or contracted to fit pipes of various diameters. The cutting planes are designed with increased contact areas including longitudinal outer cutting areas, longitudinal intermediate cutting areas, and longitudinal inner cutting areas that extend from the outer surface to the inner surface of the heater body part.
Solution Approach 2:
The cutting planes are designed with curved surfaces rather than flat surfaces, allowing better contact between adjacent segments when wrapped around the pipe. The curved contact areas conform to the cylindrical shape of the pipe, maximizing the contact area between segments and reducing heat loss at the joints.
2Device complexity
If the contact area between longitudinal cutting planes is small, then the heater structure remains simple, but temperature uniformity on the pipe surface deteriorates
Solution Approach 1:
The heater is segmented into longitudinal sections with cutting planes designed to have increased contact areas. Each cutting plane includes outer, intermediate, and inner cutting areas that collectively provide extensive thermal contact between segments, reducing temperature variations on the pipe surface while maintaining a relatively simple overall structure.
Solution Approach 2:
The cutting planes are designed with three-dimensional curved surfaces that extend from the outer to inner surfaces of the heater body part. This multi-dimensional contact area design increases the effective contact area between segments without significantly increasing structural complexity, thereby improving temperature uniformity.
3Speed
If longitudinal cutting planes are formed without bent portions, then heat movement between planes is facilitated, but heat loss increases and by-products may be fixed to the inner wall
Solution Approach 1:
The cutting planes are designed with curved surfaces that naturally facilitate heat movement between planes while maintaining adequate contact areas. The curved geometry allows thermal conduction along the pipe axis without creating large flat surfaces that would cause excessive heat loss and by-product accumulation.
Solution Approach 2:
Different regions of the cutting planes have different properties: the longitudinal outer cutting areas and longitudinal inner cutting areas provide thermal contact, while the longitudinal intermediate cutting areas extend in the circumferential direction to prevent excessive heat loss. This local differentiation of cutting plane regions optimizes both heat movement and prevents by-product fixation.
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 reduces heat loss and improves temperature uniformity on the pipe's outer surface, allowing for better heating wire installation and preventing by-product fixation, while being adaptable to various pipe diameters.
Implementation Method 1
three heating wires 121 installed in the heater body part 110
Implementation Method 2
a heat insulation layer portion 115, a support layer portion 116 installed on an inner side of the heat insulation layer portion 115
Data Source
AI summary
A heater for a pipe, includes a heater body part having a longitudinal cutting line formed in the entire thickness section to form a pair of longitudinal cutting planes in the entire length section, a heating wire installed in the heater body part, and a restraint operating part installed at the heater body part and restraining the pair of longitudinal cutting planes not to be spaced apart from each other. Each of the longitudinal cutting planes includes: a longitudinal outer cutting area disposed in a thickness direction from an outer surface of the heater body part, a longitudinal intermediate cutting area extending from the longitudinal outer cutting area in a circumferential direction of the heater body part, and a longitudinal inner cutting area extending from the longitudinal intermediate cutting area to reach the inner surface of the heater body part in the thickness direction of the heater body part.