Modular Solenoid Valve Kits for Supercritical Fluid Chromatography
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Solution Overview
Problem
Conventional chromatography systems, particularly those using CO2-based supercritical fluid chromatography, face challenges in efficiently controlling and stabilizing pressure, leading to increased costs and design/selection time due to the need for multiple differently configured valves for various system pressures.
Innovation Solution
Modular solenoid valve kits that allow components to be interchanged to create pull-through normally open, pull-through normally closed, push-in normally open, and push-in normally closed valve configurations, enabling cost and time-efficient modification of valves for various CO2-based chromatography system conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple differently configured valves are used for various system pressures, then pressure control stability is improved, but device complexity and cost increase
Solution Approach 1:
The solenoid valve is designed with interchangeable components including actuator sections and head sections that can be configured in multiple ways (pull-through normally open, pull-through normally closed, push-in normally open, push-in normally closed) to serve different pressure control needs with a single base valve design, eliminating the need for multiple differently configured valves
2Reliability
If multiple differently configured valves are used for various system pressures, then pressure control stability is improved, but design and selection time increase
Solution Approach 1:
The valve is divided into interchangeable actuator sections and head sections that can be independently selected and combined based on specific pressure control requirements, allowing rapid configuration and selection without extensive design time for multiple complete valve designs
3Adaptability or versatility
If multiple differently configured valves are used for various system pressures, then adaptability to different pressure conditions is improved, but cost increase
Solution Approach 1:
A single solenoid valve base can be adapted to different pressure conditions by interchanging actuator and head sections, providing the adaptability of multiple specialized valves while incurring the cost of only one base valve plus interchangeable components
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 modular solenoid valve kits facilitate efficient modification and configuration of valves within CO2-based chromatography systems, reducing design and selection time, and lowering costs by allowing multiple valve configurations from a common set of components, thus improving system efficiency and adaptability.
Implementation Method 1
The plurality of actuator head section components include a drive solenoid
Implementation Method 2
The plurality of actuator head section components include a solenoid return spring
Data Source
AI summary
Exemplary embodiments are directed to modular solenoid valve kits and associated methods, generally involving a valve body that includes a plurality of actuator section components and a plurality of head section components. The plurality of actuator section components includes a drive solenoid, a solenoid return spring, a stroke calibration collar and an actuator-to-head calibration collar. The plurality of head section components includes a needle, a stem return spring, a seal and a seat. The plurality of actuator section components and head section components are adapted to be interchanged to create a pull-through normally open valve, a pull-through normally closed valve, a push-in normally open valve and a push-in normally closed valve. That is, the kits and methods allow for modification of one valve type (e.g., a pull-through normally open valve, a pull-through normally closed valve, a push-in normally open valve and a push-in normally closed valve) into a different type.