Wet gas sample system

• US 10,436,678 B1
• Filed: 06/06/2017
• Issued: 10/08/2019
• Est. Priority Date: 06/06/2017
• Status: Active Grant

• Current Assignee: Mayeaux Holding, LLC
• Original Assignee: Mayeaux Holding, LLC
• Inventors: St Amant, III, Valmond Joseph
• Primary Examiner(s): Raevis, Robert R
• Application Number:
  US15/615,772
• Time in Patent Office: 854 Days
• Field of Search: 7386311, 7386312, 7386381-86385, 7386401, 7386402, 7386421, 7386434, 7386472-86474
• CPC Class Codes: F24H 1/102 with resistance
• CPC Class Codes: F24H 3/02 with forced circulation
• CPC Class Codes: G01N 1/2035 by deviating part of a fluid stream, e.g. by drawing-off or tapping
• CPC Class Codes: G01N 1/2205 with filters
• CPC Class Codes: G01N 1/2247 Sampling from a flowing stream of gas
• CPC Class Codes: G01N 1/44 Sample treatment involving radiation, e.g. heat
• CPC Class Codes: G01N 2001/205 using a valve
• CPC Class Codes: G01N 30/04 Preparation or injection of sample to be analysed

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, a probe and method of sampling is contemplated to provide linear sample of fluids from a predetermined of said fluid stream. Further taught is the method of preventing compositional disassociation of a gas sample having entrained liquid utilizing a probe having a passage formed to facilitate capillary action in fluid(s) passing therethrough. The present system further contemplates a heated pressure regulator or adapter formed to thermally engage a heat trace via conducting plates and heat pipes, in order to dispense with the need for an external power source for heating. Finally, the present system further contemplates a vaporizer system or adapter therefore utilizing heat trace heating via conductor plates in lieu of a conventional internal electric-powered heat source.

Claims

1. A device for sampling a wet gas having a composition in a fluid stream, comprising:

a probe having a probe passage along its length having an inner diameter;

a probe tip affixed to said probe having a slot formed therein leading to an outlet passage;

said probe passage formed to facilitate capillary action in wet gas flowing therethrough;

whereby, wet gas flows from said fluid stream, through said slotted probe tip, then into and through said probe passage so as to facilitate capillary action and flow therethrough and prevent disassociation of said composition of said wet gas.

2. The device of claim 1, wherein said slot of said probe tip forms an opening having a width of less than 1/32″

, and said outlet passage of said probe tip has an inner diameter less than 1/32″

, said slot and outlet passage of said probe tip formed to facilitate capillary action in wet gas flowing therethrough.

3. The device of claim 1, wherein said probe tip is formed to receive a sample flow from the center third of said fluid stream.

4. The device of claim 1, wherein said fluid stream flows through a pipe having a inner diameter, and said probe tip further comprises:

a body having first and second ends and a length,

said body having said slot having a width and a length situated along the length of said body, said slot having a width of less than 1/32″

, said slot engaging said fluid stream so as to facilitate the flow of fluids therethrough at least at the flow velocity of said fluid stream;

whereby, after laterally positioning said probe tip into said pipe and positioning said slot to face the flow of said fluid stream to collect the center third of said fluid flow, said slot receives a portion of wet gas from said fluid stream through said slot without reduction in flow velocity while preventing disassociation of the entrained liquid from the gas, providing a representative sample of said fluid stream.

5. The device of claim 4, wherein said outlet passage and said probe passage are formed to receive said representative sample therethrough via said slot, respectively, and wherein said outlet passage and said probe passages facilitate capillary action in said representative sample flowing therethrough, so as to prevent disassociation thereof.

6. The device of claim 5, wherein said inner diameter of said outlet passage and said probe passage facilitate capillary action in said wet gas flowing therethrough.

7. The device of claim 6, wherein said outlet passage and said probe passage have an inner diameter of less than 1/32″

.

8. The device of claim 7, wherein said probe comprises an insertion probe with said probe tip mounted thereto.

9. The device of claim 8, wherein said length of said slot corresponds to a targeted collection area associated with said fluid stream flowing through said pipe.

10. The device of claim 9, wherein said slot is formed to facilitate collection of a sample of said fluid stream flowing through a middle third of said inner diameter of said pipe.