A system is shown for injecting a chemical, such as an odorant, from a chemical supply into a fluid containing system such as a natural gas pipeline. A tank of odorant is maintained under a positive pressure which exceeds that of the pipeline. An injection conduit communicates the odorant tank with the pipeline. A precise control flow valve, located within the injection conduit, meters odorant to be injected into the pipeline. The odorant is metered on a dropwise basis with individual drops of chemical being counted as they pass through the flow valve into the injection conduit and into the natural gas pipeline.
A system is shown for injecting a chemical, such as an odorant, from a chemical supply into a fluid containing system such as a natural gas pipeline or an LPG pipeline. A tank of odorant is maintained under a positive pressure which exceeds that of the pipeline. An injection conduit communicates the odorant tank with the pipeline. A precise control flow valve, located within the injection conduit, meters odorant to be injected into the pipeline. An ultrasonic measuring unit allows the odorant to be metered on a drop wise basis with drops of chemical being counted as they pass through the flow valve into the injection conduit and into the natural gas pipeline. The ultrasonic measuring unit also allows steady state flow conditions to be measured accurately. A sonic measuring unit can also be utilized in low flow situations.
Stephen Marshall - Conroe TX, US Mark Zeck - Midland TX, US
International Classification:
G05B021/00
US Classification:
700/266000
Abstract:
A system for injecting chemicals, e.g., odorants, from a chemical supply into a conduit or container includes three primary components, a pump for injecting the odorant, a metering device, and a programmable controller. The controller is preferably powered by a solar panel to facilitate use of the system in remote areas for long periods of time. A removable data carrier, such as a memory module, is connected to the controller to collect odorant system event data. The data carrier is removable from the controller and the data therein may be downloaded into an auxiliary audit computer for generation of summary audit reports. The system precisely monitors how much odorant is used per pump stroke and insures that the odorant injection rate remains constant irrespective of environmental or equipment variations which might otherwise cause inaccuracies in the measurement of odorant usage data and/or the fluctuation of the odorant injection rate.
Tallgrass Energy 2013 - 2017
Senior Measurement Engineer
Zeck Systems Management 2003 - 2012
Production Manager and Partner
Material Resource Recovery 2000 - 2003
Services Manager
Northstar Industries 1998 - 2000
Design Engineer and Regional Product Manager
Reef Chemical Corporation 1997 - 1998
Subject Matter Expert - Gas Services
Skills:
Gas Natural Gas Engineering Energy Energy Industry Petroleum Pipelines Instrumentation Oil and Gas Upstream Project Engineering Onshore Oil/Gas Petrochemical Project Management Commissioning Process Control Lng Piping Scada Factory Project Planning Oil and Gas Industry Inspection Refinery Manufacturing Pressure P&Id Valves Microsoft Office Measurement Systems Product Development Flow Meters Oil