Spraying Vessel Valve Assembly for Overpressure Flow Path Blocking
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Solution Overview
Problem
Injection containers can reach an overpressure state due to thermal, mechanical, or chemical reasons, leading to potential malfunctions such as explosion or safety hazards, as existing relief mechanisms often result in instantaneous discharge of massive gas, posing additional safety risks.
Innovation Solution
An injection container with a valve assembly featuring a flow path blocking valve that includes a cantilever portion and a ring member, where the ring member is made of a shape memory alloy or thermally deformable material, which blocks the communication flow path when the internal temperature exceeds a preset level, preventing gas discharge and ensuring safe operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional valve assembly is used to maintain closed state or discharge limited contents, then the injection container can be sealed and controlled during normal use, but the container reaches overpressure state and malfunctions (expansion, deformation, explosion) when overpressure occurs
Solution Approach 1:
The patent extracts the overpressure relief function from the conventional valve assembly by introducing a separate flow path blocking valve that blocks the communication flow path between the accommodating space and valve assembly. This blocking valve is actuated by a thermal element that responds to overtemperature conditions, thereby preventing overpressure formation by stopping gas flow before pressure can build up to dangerous levels.
Solution Approach 2:
The patent introduces a thermal element as an intermediary between the overtemperature condition and the flow path blocking mechanism. The thermal element expands or changes state in response to temperature increase, which then actuates the flow path blocking valve to close the communication path, providing a mediated response that prevents direct overpressure malfunction.
2Reliability
If structures are added to discharge overpressure gas to the outside, then overpressure relief is achieved, but instantaneous discharge of massive gas causes additional safety accidents
Solution Approach 1:
The patent applies preliminary anti-action by blocking the flow path before overpressure can develop. The flow path blocking valve prevents gas from entering the valve assembly and communication path in the first place when overtemperature is detected, thereby preventing both overpressure formation and the need for gas discharge, eliminating the hazard of instantaneous gas release.
Solution Approach 2:
The patent converts the harmful effect of overtemperature into a beneficial protective action. The thermal element detects the harmful overtemperature condition and automatically actuates the flow path blocking valve to close the communication path, transforming the thermal hazard into a protective mechanism that prevents overpressure and eliminates the need for dangerous gas discharge.
3Object-generated harmful factors
If the valve assembly maintains closed state during overpressure, then gas discharge is prevented, but the container experiences expansion and deformation due to pressure buildup
Solution Approach 1:
The patent performs preliminary action by blocking the flow path before overpressure can build up to levels that would cause container deformation. The flow path blocking valve closes the communication path in advance when overtemperature is detected, preventing gas accumulation and pressure buildup, thereby protecting the container structure while still preventing gas leakage to the outside.
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 prevents overpressure malfunctions by blocking the flow path, stabilizing the internal structure, and enhancing safety by preventing gas leakage, thus avoiding explosions and fires.
Implementation Method 1
the ring member is made of a shape memory alloy or thermally deformable material
Implementation Method 2
which blocks the communication flow path when the internal temperature exceeds a preset level
Data Source
AI summary
The present invention relates to a spraying vessel and a valve assembly comprising the same, the spraying vessel comprising: a housing provided with an upper sealing cap for sealing an upper portion and a receiving space for receiving contents; a mount cup, mounted on the upper sealing cap, having a through hole formed in a central portion thereof; a stem housing provided with a mounting portion, mounted to the mount cup, having a hollow portion formed therein, and a communication flow path for making the hollow portion be in communication with the receiving space; a valve stem which is installed to pass through the through hole and slide in the hollow portion, and is provided with an orifice being configured to selectively communicate with the hollow portion by a sliding motion; and a flow path blocking valve formed to block an inlet of the communication flow path.