Remote Reset Selector Valve for Fire Suppression Systems
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Solution Overview
Problem
Existing fire suppression systems require manual resetting of the selector valve due to back pressure issues, making remote reset functionality unavailable.
Innovation Solution
A remotely controllable selector valve system is introduced, utilizing a network of pneumatic control valves including pressure solenoids and vent solenoids, which can be controlled remotely to reverse pressure imbalances and reset the system automatically.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single pneumatic solenoid is used to control the fire suppression valve, then the system structure is simple, but the valve cannot be remotely reset due to back pressure
Solution Approach 1:
The single solenoid is divided into two separate solenoids: a first solenoid for opening the valve and a second solenoid for closing the valve. This segmentation allows independent control of valve opening and closing operations, enabling remote reset functionality while maintaining structural simplicity.
Solution Approach 2:
A pneumatic intermediary system is introduced between the control system and the valve, consisting of a first pneumatic conduit connected to the first solenoid and a second pneumatic conduit connected to the second solenoid. This intermediary pneumatic system transmits control signals remotely, allowing the valve to be reset from a remote location without direct mechanical intervention.
2Ease of manufacture
If a single pneumatic solenoid configuration is used, then the system is easier to manufacture, but manual recharging and resetting is required after activation
Solution Approach 1:
The control system is segmented into two independent solenoid circuits, each capable of being activated remotely. The first solenoid circuit handles valve opening while the second solenoid circuit handles valve closing, enabling automatic reset operations without requiring manual recharging or intervention.
Solution Approach 2:
The system incorporates feedback mechanisms that detect the valve state and automatically activate the appropriate solenoid for resetting. After the fire suppression event, the system can automatically detect when the valve is closed and trigger the first solenoid to reopen it, providing automatic reset capability while maintaining simple manufacturing.
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 remote activation and deactivation of the fire suppression system, allowing for automatic and remote resetting of the inert gas dispersion system, thereby eliminating the need for manual intervention.
Implementation Method 1
a first pressure solenoid and a second pressure solenoid, each having an inlet and an outlet
Implementation Method 2
pressurized pneumatic fluid is provided to an input of a fire suppression system valve. The pressurized pneumatic fluid causes the fire suppression system valve to open
Implementation Method 3
a first vent solenoid connected to the outlet of the first pressure solenoid, and a second vent solenoid connected to the outlet of the second pressure solenoid
Data Source
AI summary
A selector valve for a fire suppression system includes a pneumatic fluid inlet connecting to an inlet of a first pressure solenoid and an inlet of a second pressure solenoid. An inlet of a first vent solenoid in the selector valve is connected to an outlet of the first pressure solenoid, and an inlet of a second vent solenoid in the selector valve is connected to an outlet of the second pressure solenoid. A first selector valve outlet is connected to the outlet of the first pressure solenoid and a second selector valve outlet connected to the outlet of the second pressure solenoid.