Pressure Tank Protector Bonding on Dome-to-Body Surfaces
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing pressure tank units face issues with protectors detaching from the tank due to unintentional gaps formed at the bonded area between the dome part and the protector, especially when external impact is applied, as the surface roughness of the dome part is higher than the body part.
Innovation Solution
The protectors are aligned along the circumferential direction of the tank, covering both the dome and body parts, with multiple independent bonding areas to ensure firm attachment, and include grooves for flexibility, allowing for secure bonding even on curved surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the protector is bonded to the dome part via bonding material, then the dome part is protected from impact, but the protector may detach due to unintentional gaps formed at the bonded area
Solution Approach 1:
The protector is divided into multiple protectors arranged along the boundary between the body part and dome part in the circumferential direction. Each protector has a first portion covering the dome part and a second portion covering the body part, with bonding areas positioned on the body part where surface roughness is lower, ensuring more reliable bonding.
Solution Approach 2:
The bonding areas are specifically positioned on the body part rather than the dome part, taking advantage of the lower surface roughness of the body part. This local quality difference ensures better bonding reliability at the bonding locations while maintaining impact protection functionality.
2Strength
If the surface roughness of the dome part is higher than the body part, then the dome part has better structural integrity, but gaps are unintentionally formed at the bonded area reducing bonding strength
Solution Approach 1:
The protector is segmented into multiple units arranged circumferentially, with bonding areas positioned on the body part. This segmentation allows the bonding function to be separated from the dome part coverage function, enabling bonding on the smoother body part surface while maintaining dome part protection.
Solution Approach 2:
The bonding areas are positioned in a different location (on the body part) than the dome part coverage area. By utilizing the circumferential arrangement and positioning bonding areas on the cylindrical body part rather than the hemispherical dome part, the invention exploits spatial dimensionality to resolve the surface roughness issue.
3Device complexity
If a single bonding area is used between the protector and tank, then the structure is simpler, but the protector cannot be firmly bonded on curved surfaces with curves and bumps
Solution Approach 1:
Each protector includes multiple bonding areas (first bonding area and second bonding area) that are independent of each other. This segmentation of the bonding function allows the protector to accommodate surface curvature and irregularities by distributing bonding points across different locations on the body part.
Solution Approach 2:
The groove defined between the first bonding area and second bonding area in the inner surface of the second portion provides flexibility to each protector with respect to the circumferential direction, allowing the protector to adapt to the curved surface of the body part while maintaining firm bonding.
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 prevents protector detachment by ensuring firm bonding to the tank, even on surfaces with curves and bumps, enhancing impact resistance and durability.
Implementation Method 1
an inner surface of the second portion facing the body part may comprise at least one bonding area bonded to the body part via a bonding material
Data Source
AI summary
A pressure tank unit may include: a tank including a container space which contains compressed gas; and a plurality of protectors bonded to a surface of the tank, wherein the tank may include: a body part having a cylindrical shape; and a dome part provided at an end of the body part and having a hemispherical shape, the plurality of protectors may be arranged along a boundary between the body part and the dome part in a circumferential direction of the tank, each of the plurality of protectors may have a first portion covering the dome part and a second portion covering the body part, and an inner surface of the second portion facing the body part may include at least one bonding area bonded to the body part via a bonding material.