Wet gas sample probe, vaporizing regulator, and methods associated therewith

• US 10,641,687 B1
• Filed: 12/26/2017
• Issued: 05/05/2020
• Est. Priority Date: 03/15/2013
• 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:
  US15/854,663
• Time in Patent Office: 861 Days
• Field of Search: 73863-86491, 73 232- 3107, 7333501-33514, 422 1- 42, 422 50- 98, 422527-546, 422109, 422199, 422244, 422298, 422299
• 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 2001/2261 preventing condensation (heating lines)
• CPC Class Codes: G01N 2001/2267 separating gas from liquid, e.g. bubbles
• CPC Class Codes: G01N 33/225 Gaseous fuels, e.g. natural gas

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 a linear sample of fluids from a predetermined area 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 unique modular vaporizing pressure regulator formed to electrically engage a tube bundle via a tube bundle boot mounted on the bracket of a modular sample system in order to dispense with the need for conduit normally required for a separate power cord.

Claims

1. A tube bundle interface for a modular conditioning system, comprising:

a heated conditioning component affixed to a mounting bracket;

a tube bundle boot affixed to said mounting bracket;

a tube bundle comprising an sample tube formed to facilitate a flow of conditioned fluid from said modular conditioning system, said sample tube being insulated, said tube bundle further comprising a power cord;

wherein said tube bundle boot is formed to receive and engage an end of said tube bundle so as to provide power to a heater for said heated conditioning component, via said power cord.

2. The device of claim 1, wherein said heater comprises a heater block associated with said heated conditioning component.

3. The device of claim 2, where said heated conditioning component comprises a vaporizer.

4. The device of claim 3, wherein said vaporizer comprises a modular vaporizing pressure regulator, having a first pressure reducing stage.

5. The device of claim 4, wherein said modular vaporizing pressure regulator has a second pressure reducing stage.

6. The device of claim 5 where said modular vaporizing pressure regulator further comprises a radiant heat sink formed to thermally engage said heater block, said radiant heat sink situated in a vaporization chamber, and a heat pipe, said heat pipe formed to transfer heat from said heater block to a component engaging said vaporization chamber.

7. The device of claim 6, wherein said modular vaporizing pressure regulator has an inlet, said modular vaporizing pressure regulator further comprising:

a plastic tube formed to thermally isolate said inlet;

a length of capillary tubing sized for the fluid and flow rate using the Poiseuille Equation, said capillary tubing mounted to transfer fluid from a probe to said inlet,

said heater block being formed to conduct heat to said vaporizing chamber;

a heat sink formed to provide selective transfer heat within said vaporizer;

a internal heat pipe to transfer heat to the outlet pressure drop area of the vaporizer

a post-heat internal heat exchanger formed to transfer heat to the outlet of the vaporizer.

8. The device of claim 7, wherein said modular vaporizing pressure regulator has a bottom cap having a raised portion forming an engagement surface to receive heat from said heater block, said raised portion corresponding to the size of said heater block and said vaporizer chamber formed so as to maximize heat transfer efficiency.

9. The device of claim 8, wherein said inlet comprises a liquid bypass port.

10. The device of claim 5, wherein said tube bundle further comprises a heat trace having a length thermally engaging said sample tube, said power cord being isolated from said heat trace and said power cord via said insulation.

11. The device of claim 10, wherein said tube bundle has a length, and a cover along said length enveloping said sample tube, said heat trace and said insulation, as well as said power cord.

12. The device of claim 5, wherein said sample tube is configured to facilitate said flow of conditioned fluid from said modular conditioning system to an analyzer.