Pressurized Actuator Compartments With Shared Power Switching
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Solution Overview
Problem
Existing industrial actuators require excessive cabling and complex switch management for purging and pressurizing compartments to prevent explosive gas ingress, complicating safety measures.
Innovation Solution
An industrial system with a primary and secondary compartment, a power line, and switches, where a secondary switch in the primary compartment controls all secondary devices, reducing cabling and simplifying safety by allowing independent purging and pressurizing of compartments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a dedicated power line and switch are used for each chamber, then electrical safety is ensured, but cabling complexity and switch management become excessive
Solution Approach 1:
The patent merges the power supply control for multiple chambers into a single power line that passes through multiple chambers sequentially. Instead of having separate power lines for each chamber, one power line serves all chambers with switches positioned within each chamber to control power distribution to devices in that specific chamber.
Solution Approach 2:
The patent segments the power control function by placing individual switches within each chamber rather than having external control for each chamber. This allows each chamber to independently control its own power consumption while sharing the common power line infrastructure.
2Reliability
If multiple switches are operated to disconnect power supply to multiple motors, then electrical safety is maintained, but the number of operations increases reducing safety
Solution Approach 1:
Each chamber is equipped with its own switch that can independently control power to devices in that chamber. The chamber itself serves its own power control needs without requiring external intervention for each device, simplifying the overall operation while maintaining safety.
3Reliability
If excessive cabling is used to supply power to each chamber independently, then electrical isolation is ensured, but installation complexity and cost increase
Solution Approach 1:
The patent combines multiple power lines into a single common power line that serves all chambers. This merging reduces the total amount of cabling required while maintaining electrical isolation through the use of switches within each chamber that can open or close the circuit as needed.
Data Source
AI summary
An industrial system includes an industrial actuator including a primary compartment containing a primary electric device and a secondary compartment containing a secondary electric device; a pressure system generating an overpressure in the primary compartment and in the secondary compartment with respect to the exterior region; a power line for supplying electric power to each primary electric device and each secondary electric device; a primary switch provided on the power line arranged to selectively connect and disconnect power supply to each primary electric device and each secondary electric device; and a secondary switch provided on the power line arranged to selectively connect and disconnect power supply to each secondary electric device, the secondary switch being positioned inside the primary compartment.