Pressure Regulator Valve Assembly for Multi-Pressure Sealing
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Solution Overview
Problem
Existing regulators face complexity in manufacturing and management due to varying pressure requirements, particularly when handling high-pressure fluids like CNG, which also necessitate materials capable of withstanding extreme low temperatures.
Innovation Solution
A regulator design featuring a pressure regulation valve with a cylindrical valve body that reciprocates axially, using an electric motor for control, and a structure that allows for easy assembly by joining two components of the valve body, facilitating commonization of components across different pressure specifications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If pressure regulation valves are designed with different specifications for different pressure requirements (20 MPa high pressure and 5 MPa low pressure), then each valve can meet its specific pressure requirement, but manufacturing and management become complicated
Solution Approach 1:
The valve body is designed with a standardized structure that can function across different pressure specifications (5 MPa and 20 MPa). The common valve body structure allows the same base component to be used for both low-pressure and high-pressure applications, reducing the number of unique parts and simplifying manufacturing and management while maintaining reliability for each specific pressure requirement
Solution Approach 2:
The valve body is divided into two main segments: a common valve body structure and a replaceable valve seat component. This segmentation allows the majority of the valve body to be standardized and reused across different specifications, while only the valve seat needs to be changed to accommodate different pressure requirements, thereby reducing overall complexity
2Strength
If the valve body is made as a single integrated component, then structural integrity is improved, but manufacturing difficulty and cost increase
Solution Approach 1:
The valve body is segmented into a main body structure and a separate valve seat component. The main body can be manufactured using standard processes with consistent geometry, while the valve seat is a separate component that can be optimized for its specific function. This segmentation maintains structural integrity through proper joining methods while significantly easing manufacturing complexity and reducing costs
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 design simplifies manufacturing and management by enabling component commonality and ensures effective sealing performance across varying pressure ranges, including extreme temperature conditions.
Implementation Method 1
a pressure regulation valve 20 provided on the passage 11 and partitioning a primary pressure chamber 1 on a side of the fluid introduction port 12 and a secondary pressure chamber 2 on a side of the fluid discharge port 13
Implementation Method 2
a regulator that reduces and adjusts a fluid pressure... a pressure regulation valve 20... adjusting the pressure of the fluid to be discharged
Implementation Method 3
When gas fuel stored in a cylinder at a relatively high pressure (20 MPa) such as CNG is introduced at the high pressure and depressurized, a temperature becomes an extremely low temperature of around -200°C due to a temperature decrease during adiabatic expansion
Data Source
AI summary
A regulator includes a body that has a fluid introduction port and a fluid discharge port, and a pressure regulation valve that partitions a primary pressure chamber on the fluid introduction port side and a secondary pressure chamber on the fluid discharge port side, and is capable of extracting a fluid whose pressure is adjusted to a predetermined pressure from the fluid discharge port. The pressure regulation valve includes a cylindrical valve body that causes the primary pressure chamber and the secondary pressure chamber to communicate with each other, a valve seat on which the valve body is seated when the valve is closed, and a valve body actuator that causes the valve body to reciprocate in the axial direction. The valve body is formed by joining a head portion that is seated on the valve seat and a body portion that reciprocates in the axial direction.