Bamboo-Sand Composite Pressure Pipe Structure for Low-Cost Rigidity
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Solution Overview
Problem
Traditional pipes used in agricultural irrigation, water supply, and petrochemical industries face issues such as high energy consumption, resource depletion, and environmental pollution, with existing bamboo composite pipes being too expensive for low-pressure high-rigidity applications.
Innovation Solution
A thermosetting bamboo-sand composite pressure pipe is developed, featuring an inner liner layer, an inner reinforcement layer formed by winding bamboo strips with amino resin, a sand-adhesive thickening layer, and an outer reinforcement layer also formed by winding bamboo strips, which are integrated and cured to provide enhanced strength and reduced material usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If bamboo fiber winding composite pipe is used, then renewable resources and energy saving are achieved, but production cost is high for low-pressure applications
Solution Approach 1:
The patent uses composite materials by combining bamboo strips with amino resin in the reinforcement layers and sand with adhesive resin in the thickening layer. This composite structure achieves both environmental benefits and cost reduction by replacing expensive pure bamboo composite structures with a hybrid material system that maintains performance while lowering material costs.
Solution Approach 2:
The patent applies different material compositions to different functional zones: the inner and outer reinforcement layers use bamboo strips with amino resin for structural strength, while the middle sand-adhesive thickening layer uses sand with adhesive resin for rigidity and cost reduction. This localized material differentiation optimizes both performance and cost.
2Reliability
If traditional pipes (cement, metal, plastic) are used, then various performance requirements are met, but resource depletion and environmental pollution occur
Solution Approach 1:
The patent changes the material parameters from traditional petrochemical-based or metal materials to renewable bamboo and sand materials. By adjusting the composition ratios and layer structures, the pipe achieves required mechanical properties while being environmentally friendly and resource-sustainable.
Solution Approach 2:
The patent uses inexpensive materials (bamboo strips, sand, adhesive resin) that are readily available and low-cost, replacing expensive traditional materials like metal pipes and high-performance plastics, while maintaining adequate service life for the application.
3Strength
If sand-adhesive thickening layer is added, then rigidity is improved and material usage is reduced, but manufacturing complexity increases
Solution Approach 1:
The patent segments the pipe wall into distinct functional layers: inner reinforcement layer, sand-adhesive thickening layer, and outer reinforcement layer. Each layer has specific thickness and material composition, allowing independent optimization of manufacturing processes for each layer while achieving overall performance goals.
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 pipe achieves energy savings, environmental protection, and a lower cost while offering high strength, rigidity, and corrosion resistance, making it suitable for applications like agricultural irrigation with improved loading performance and competitive pricing.
Implementation Method 1
an inner reinforcement layer formed by winding bamboo strips with amino resin, a sand-adhesive thickening layer formed by an evenly blended mixture of ore sand and adhesive resin
Implementation Method 2
The inner liner layer, the inner reinforcement layer, the sand-adhesive thickening layer, and the outer reinforcement layer are adhered and cured in an integrated manner by heating
Data Source
Figure 1
AI summary
A thermosetting bamboo sand composite pressure pipe comprises a inner liner layer (1), an inner reinforcement layer (2), a sand adhesive layer (3), an outer reinforcement layer (4) and an outer protection layer (5) arranged respectively from an inside to an outside in a radial direction thereof. The inner reinforcement layer (2) formed by winding bamboo, a thickening layer (3) formed by stirred ore and adhesive, and the outer reinforcement layer (4) formed by winding bamboo are arranged sequentially from an inside to an outside between the inner liner layer (1) and the outer protection layer (5). The composite pressure pipe is energy-saving and environmental-friendly, raw production materials are recyclable, and a price is low.