NC Valve Actuator Servicing Tool Set for Tight-Space Maintenance
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Solution Overview
Problem
Precision fluid control systems, particularly those with Normally Closed (NC) valve assemblies, face challenges in servicing and maintenance due to tight space constraints and the need to maintain actuator activation during servicing, making it difficult to disengage and reengage the actuator from the valve without damaging the components.
Innovation Solution
A servicing tool set comprising a ratchet and sockets that can engage with the actuator body, allowing torque application to disengage the actuator from the valve body, and operational coupling with pressurized fluid to activate the NC valve, facilitating maintenance while maintaining the valve in the correct state, with features like resilient engagement and torque measurement for secure and precise operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the valve assembly is designed with tight space constraints, then the device size is reduced, but the ease of servicing deteriorates
Solution Approach 1:
The valve assembly is segmented into distinct modular components including the valve body, actuator, and service port assembly. This segmentation allows each component to be independently accessed and serviced, resolving the contradiction by enabling maintenance of tightly-packed components without requiring complete disassembly of the compact assembly.
Solution Approach 2:
A service port acts as an intermediary access point that provides a pathway for servicing internal components without requiring disassembly of the compact valve body. This intermediary structure enables technicians to access and maintain components within tight spaces while preserving the overall compact design of the valve assembly.
2Reliability
If the NC valve requires actuator activation to hold fully open position during servicing, then the valve reliability is improved, but the device complexity increases
Solution Approach 1:
The valve assembly incorporates a self-service mechanism where the actuator automatically maintains the valve in the fully open protective position through its own internal logic and design. The actuator's normal operation and control system inherently provide the protective function during servicing, eliminating the need for additional external control mechanisms or complex activation procedures.
3Ease of repair
If the actuator is frequently disengaged and reengaged with the valve body, then the ease of servicing is improved, but the manufacturing precision requirements increase
Solution Approach 1:
Alignment features such as guide pins, keyed interfaces, or pre-positioned mounting surfaces are incorporated into the actuator and valve body design before disassembly occurs. These preliminary alignment provisions ensure that when the actuator is reengaged after servicing, it automatically returns to the correct positional relationship with the valve body, eliminating the need for precise manual realignment and reducing manufacturing tolerances required.
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
Enables efficient and safe maintenance of NC valve assemblies in tight spaces by allowing disengagement and reengagement of the actuator without damaging the components, ensuring proper sealing and preventing leaks, while accommodating various actuator sizes and shapes through adaptable socket designs.
Implementation Method 1
applying torque to an actuator body engaged with a valve body and thereby disengaging the actuator body from the valve body
Implementation Method 2
activating an actuator engaged therewith with pressurized fluid and thereby opening the NC valve
Data Source
AI summary
According to one aspect, a fluid control system is provided comprising a servicing tool set and at least one valve assembly comprising an actuator and a valve operationally engageable therewith; each valve comprising a valve body; each actuator comprising an actuator body having an upper base and side walls; wherein each actuator body is engageable with a valve body, and wherein the system is configured to allow: engaging the servicing tool set with an actuator and subsequently applying torque to an actuator body engaged with a valve body and thereby disengaging the actuator body from the valve body; the at least one valve assembly comprising at least one Normally Closed (NC) valve; wherein the NC valve is configured to allow activating an actuator engaged therewith with pressurized fluid and thereby opening the NC valve, wherein the actuator comprises a nipple and the servicing tool set comprises a ratchet and at least one socket engageable with the actuator body, and wherein the at least one socket is sized and shaped to accommodate the nipple, and wherein the servicing tool set is further configured to allow operationally coupling the pressurized fluid to the actuator.