Hydrant Operating Rod Pressure Sensor
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Solution Overview
Problem
Existing water distribution system pressure monitoring systems for fire hydrants are limited by requiring interruption of service for monitoring, especially in dry barrel hydrants, and are not effective in both hot and cold climates.
Innovation Solution
A non-interrupting on-line water distribution pressure monitoring system for both dry and wet barrel fire hydrants, utilizing a water flow control mechanism and a submersible pressure transducer with a communication mechanism for continuous data collection and transmission, allowing operation while the hydrant is in use and functioning in various climates.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional monitoring systems are used in dry barrel fire hydrants, then pressure monitoring can be conducted, but service interruption is required which reduces productivity
Solution Approach 1:
A pressure sensor is installed as an intermediary component within the operating rod of the fire hydrant, allowing pressure monitoring without requiring service interruption. The sensor communicates with a data logger that can be read remotely, enabling continuous monitoring while the hydrant remains in service.
Solution Approach 2:
The patent replaces traditional mechanical monitoring methods that require disassembly and service interruption with an electronic sensing system. The pressure sensor and data logger provide automated electronic monitoring, eliminating the need for manual intervention and service interruption.
2Reliability
If monitoring systems are installed in fire hydrants, then continuous data collection is enabled, but device complexity increases
Solution Approach 1:
The data logger serves multiple functions: it stores pressure data, timestamps measurements, and can be remotely read by utility vehicles. This multi-functionality reduces the need for separate systems for data collection, storage, and retrieval, thereby limiting the increase in device complexity.
Solution Approach 2:
The monitoring system is designed to be self-contained within the fire hydrant structure. The pressure sensor automatically records data without requiring external power or control systems, and the data logger stores information locally, eliminating the need for complex external monitoring infrastructure.
3Reliability
If pressure monitoring is implemented, then water quality and structural issues can be detected, but installation and retrofitting costs increase
Solution Approach 1:
The monitoring system is segmented into modular components: a pressure sensor integrated into the operating rod, a data logger, and a remote reading capability. This segmentation allows for phased installation and retrofitting without requiring complete system replacement, reducing overall installation complexity and cost.
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 continuous, real-time monitoring of water pressure, reducing the risk of structural damage and water quality issues, providing year-round data access without the need for extensive retrofitting or refurbishing, and alerting operators to potential issues like water main breaks.
Implementation Method 1
a submersible pressure transducer with a communication mechanism for continuous data collection and transmission
Data Source
AI summary
A non interrupting on-line water distribution pressure monitoring system for a dry barrel fire hydrant includes an upper portion or the head and a lower portion or the barrel having an opening. A water flow control mechanism mounted at the opening of the lower portion of the barrel for controlling the water flowing through the barrel. An operating rod for activating the water flow control mechanism having an upper operating rod and a lower operating rod extends through the barrel between the upper and lower portions. The upper operating rod is secured to the head and the bottom of the lower operating rod is secured through the water flow control mechanism to extend beyond the lower portion of the barrel. A water pressure measuring device is housed within the bottom of the lower operating rod and extending beyond the bottom of the lower operating rod. A communication mechanism is positioned remotely from the dry barrel fire hydrant for receipt, collection and distribution of information collected from the water pressure measuring device.