Remote Gas Regulator Shutoff Using Sensor-Triggered CO2 Actuation
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Solution Overview
Problem
Conventional gas shutoff devices require significant piping modifications or replacement of existing regulators, making them costly and inefficient for remote gas flow control, especially for utilities that need to manage safety and non-payment issues.
Innovation Solution
A gas regulating and control system that includes a gas control module with sensors and a communications circuit, allowing for remote control of gas flow by sensing parameters like pressure and temperature, and using stored CO2 pressure to actuate a piston or bladder to shut off the gas without modifying existing piping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional shutoff devices are installed, then gas flow can be shut off remotely, but significant piping modifications or regulator replacement is required
Solution Approach 1:
The gas shutoff mechanism is nested within the existing regulator body, utilizing the regulator's internal structure and valve stem. The shutoff assembly integrates with the regulator components rather than requiring external piping modifications, effectively placing one functional system inside another.
Solution Approach 2:
The regulator assembly is designed to perform multiple functions: both pressure regulation and remote shutoff control. By integrating the shutoff mechanism with the existing regulator, a single device accomplishes what previously required separate components and piping modifications.
2Ease of operation
If conventional shutoff devices are installed, then gas flow can be shut off remotely, but existing regulator or meter must be changed
Solution Approach 1:
The shutoff assembly is nested within the existing regulator structure, allowing installation without replacing the entire regulator or meter. This approach reuses existing components and minimizes the need for new equipment procurement.
Solution Approach 2:
The shutoff function is segmented as a separate modular assembly that can be installed independently within the regulator. This segmentation allows the existing regulator to remain in service while adding shutoff capability through a distinct, installable component.
3Adaptability or versatility
If gas shutoff system is added, then remote control capability is provided, but regulator performance may be interfered with
Solution Approach 1:
The shutoff mechanism operates locally within the regulator structure, using the existing valve stem and internal passages. By confining the shutoff action to the local valve area rather than affecting the entire gas flow path, the regulator's pressure and flow control performance is preserved.
Solution Approach 2:
The regulator functionality is segmented into independent control zones: the pressure regulation mechanism continues to operate independently while the shutoff assembly provides separate on/off control. This segmentation ensures that adding shutoff capability does not compromise the existing pressure control function.
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 and automatic gas shutoff or startup without interfering with the pressure and flow performance of the regulator, providing enhanced safety and cost-effective solution for utilities by integrating with existing gas regulators without substantial piping changes.
Implementation Method 1
use pressure stored in a carbon dioxide cylinder to fill a bladder and actuate a lever assembly of the regulator closing the valve against the orifice to turn off the gas within the gas regulator
Data Source
AI summary
A gas regulating and control system is provided that is configured to be received at a gas regulator installed at a remote location for remotely controlling the gas flow, the system including a gas control module including a plurality of sensors associated with the gas regulator, the plurality of sensors configured to sense a corresponding plurality of parameters associated with the gas regulator. The gas control module is configured to automatically turn off the gas to the gas regulator when one or more of the corresponding plurality sensed parameters is determined to be outside an acceptable range for the sensed parameter.