Wet gas lateral sampling system and method
First Claim
1. A device for sampling fluid comprising gas with entrained liquid in a fluid stream in a pipe having an inner wall forming an inner diameter, comprising:
- a body having first and second ends and a length,a fluid passage provided at said first end of said body;
said body having a slot having a cross sectional area, said slot in longitudinal alignment with said body, said slot forming a conduit to facilitate the flow of fluid from said fluid stream to said fluid passage at least at the velocity of said fluid stream;
said fluid passage having a cross sectional area sized in relation to the cross sectional area of said slot so as to facilitate the flow of fluids therethrough at least at the flow velocity of fluid flowing through said slot;
whereby, after laterally positioning said device into a pipe so as to engage the flow of the fluid stream substantially transversally, a portion of said fluid stream flows into said slot formed in said body, through said slot then through said fluid passage at least at the velocity of said fluid stream, so as to prevent disassociation of the entrained liquid from the gas, and provide a representative sample of said fluid stream.
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Accused Products
Abstract
A system for on-stream sampling of pressurized process gas such as natural gas or the like, said system optimized for use with pressurized process gas having liquid entrained therein, or otherwise referenced as “wet”. In the preferred embodiment, the probe tip is situated laterally from one side of the inner pipe wall to the other so as to span the entire inner diameter (ID) of the pipe, the probe tip having formed along its outer surface sample collection slot along the length of said outer surface, providing a “linear sample” of the fluid flow of the entire breadth of the flow, providing an accurate sample of even disassociated flow with entrained liquid particles and flow. Embodiments for continuous sampling, batch mode, spot sampling are provided, as well as an anti-vibration feature.
24 Citations
24 Claims
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1. A device for sampling fluid comprising gas with entrained liquid in a fluid stream in a pipe having an inner wall forming an inner diameter, comprising:
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a body having first and second ends and a length, a fluid passage provided at said first end of said body; said body having a slot having a cross sectional area, said slot in longitudinal alignment with said body, said slot forming a conduit to facilitate the flow of fluid from said fluid stream to said fluid passage at least at the velocity of said fluid stream; said fluid passage having a cross sectional area sized in relation to the cross sectional area of said slot so as to facilitate the flow of fluids therethrough at least at the flow velocity of fluid flowing through said slot; whereby, after laterally positioning said device into a pipe so as to engage the flow of the fluid stream substantially transversally, a portion of said fluid stream flows into said slot formed in said body, through said slot then through said fluid passage at least at the velocity of said fluid stream, so as to prevent disassociation of the entrained liquid from the gas, and provide a representative sample of said fluid stream. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification