Internal Curing Pressure Control for IV Hydrogen Container Liners
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Solution Overview
Problem
The liner of IV-type hydrogen storage containers collapses due to fiber tension during winding, leading to irreparable defects and affecting the service life, as traditional external curing processes are inadequate.
Innovation Solution
An inflation control apparatus and internal curing method that includes a rack, rotary inflation connector, temperature and pressure sensor, air compressor, and electrically controlled flow regulating valve, allowing for real-time adjustment of air flow and pressure to maintain optimal curing conditions within the container liner, preventing liner collapse during fiber winding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional external curing process is used, then curing can be performed, but the liner collapses due to fiber tension during winding
Solution Approach 1:
The patent inverts the traditional external curing approach by implementing internal curing. Instead of curing the container from the outside, the invention places a heating device inside the container liner to apply heat directly to the composite materials during winding, preventing liner collapse while achieving proper curing.
Solution Approach 2:
The patent introduces a heating device as an intermediary element placed inside the container liner. This heating device acts as a mediator between the fiber winding process and the curing process, enabling simultaneous heating and winding without direct contact between the heating source and the composite materials.
2Productivity
If fiber winding is performed under tension, then composite materials can be wound, but the liner collapses due to the tension
Solution Approach 1:
The patent applies preliminary anti-action by pre-heating the composite materials before winding. The heating device is activated before fiber winding begins, preparing the materials in advance to prevent liner collapse during the high-tension winding process, thereby maintaining both productivity and shape stability.
Solution Approach 2:
The heating device performs preliminary action by heating the composite materials and liner before the fiber winding process starts. This preliminary heating ensures the liner maintains its shape during subsequent winding operations, allowing efficient winding without collapse.
3Manufacturing precision
If heating is applied to cure composite materials, then curing is achieved, but the liner may deform or collapse
Solution Approach 1:
The heating device serves as an intermediary that enables curing while protecting the liner from direct thermal damage. By positioning the heating device inside the liner and controlling its temperature, the system achieves effective curing of composite materials without causing liner deformation or collapse.
Solution Approach 2:
The patent controls the heating parameters (temperature, heating rate) to achieve proper curing of composite materials while maintaining liner structural stability. By carefully adjusting these parameters, the system cures the materials without exceeding the thermal tolerance of the liner material.
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 system dynamically controls air flow and pressure to maintain a moving balance, ensuring the sealing effect and improving the molding quality of the hydrogen storage container by compensating for fiber tension and reducing porosity in the composite materials.
Implementation Method 1
the air heater passes the air heated to a set temperature into an air inlet of the inflation core tube
Implementation Method 2
an air compressor supplies air to the air heater via the valve I... controlling the size of a valve port of the electrically controlled flow regulating valve according to a value detected by the temperature and pressure sensor, thus adjusting an air flow
Data Source
AI summary
An inflation control apparatus includes seal heads at ends of a container liner on a rack; a rotary inflation connector includes a static component and a rotating component. The rotating component is connected with the seal head; an inflation core tube is in the container liner, air holes are in the inflation core tube, and the two ends of the inflation core tube are connected with the static component of the rotary inflation connector respectively. A temperature and pressure sensor is in the container liner; an air compressor provides air for an air heater, the air heater introduces the heated air into an air inlet of the inflation core tube, an air outlet of the inflation core tube is connected with an air inlet of a flow regulating valve, and an air outlet of flow regulating valve is connected with an air inlet of the air compressor.