PIPELINES AND CONVEYING METHODS

• US 20120111418A1
• Filed: 10/05/2011
• Published: 05/10/2012
• Est. Priority Date: 11/08/2010
• Status: Active Grant

• Current Assignee: Air Products and Chemicals Incorporated (Linde Plc)
• Original Assignee: General Electric Company
• Inventors: Hu, Lishun, Chen, Wei, Lv, Jing
• Granted Patent: US 9,387,997 B2
• Time in Patent Office: Days
• US Class Current: 137/14
• CPC Class Codes: B65G 53/523 Wear protection
• CPC Class Codes: F16L 41/021 T- or cross-pieces F16L41/025, F16L41/026, F16L41/028 take precedence
• CPC Class Codes: Y10T 137/0396 Involving pressure control
• CPC Class Codes: Y10T 137/8593 Systems

Abstract

A pipeline for conveyance of a multiphase fluid is provided. The pipeline comprises a containment element and a tubular element. The containment element defines a cavity and an inlet in fluid communication with the cavity. The tubular element passes through the containment element and with a portion thereof disposed within the cavity to be in fluid communication with the inlet of the containment element. A gasification system for gasification a solid powder and a method for conveyance of a multiphase fluid are also presented.

Claims

1. A pipeline for conveyance of a multiphase fluid, comprising:

a containment element defining a cavity and an inlet in fluid communication with the cavity; and

a tubular element passing through the containment element and with a portion thereof disposed within the cavity so that the inlet of the containment element is in fluid communication with an interior of the tubular element through the portion of the tubular element disposed within the cavity.

2. The pipeline of claim 1, wherein the tubular element comprises an inlet and an outlet both extending outside of the containment element.

3. The pipeline of claim 1, wherein the tubular element is coaxial with the containment element.

4. The pipeline of claim 1, wherein the portion of the tubular element disposed within the cavity is porous so that the inlet is in fluid communication with the tubular element.

5. The pipeline of claim 1, wherein the tubular element comprises a bended portion disposed within the cavity of the containment element, and wherein a portion of the bended portion are porous.

6. The pipeline of claim 1, wherein the tubular element and the containment element comprise a cylindrical cross section.

7. The pipeline of claim 1, wherein the tubular element of the pipeline is configured to convey a multiphase fluid, and wherein the inlet of the containment element is configured to introduce a gas into the cavity to increase a pressure in the containment element so that the gas from the inlet is pressurized into the tubular element.

8. The pipeline of claim 7, wherein the multiphase fluid comprises a gas-solid mixture.

9. A gasification system for gasification of a solid powder, comprising:

a storage tank;

a gasifier; and

a pipeline comprising;

a tubular element in fluid communication with the storage tank and the gasifier, and

a containment element defining a cavity to accommodate a portion of the tubular element and an inlet in fluid communication with the cavity and an interior of the tubular element through the portion of the tubular element accommodated within the cavity.

10. The gasification system of claim 9, wherein the tubular element passes through the containment element, and wherein an inlet and an outlet of the tubular element extend outside of the containment element.

11. The gasification system of claim 9, wherein the tubular element is coaxial with the containment element.

12. The gasification system of claim 9, wherein the portion of the tubular element accommodated within the cavity is porous so that the inlet is in fluid communication with the tubular element.

13. The gasification system of claim 9, wherein the tubular element comprises a bended portion accommodated within the cavity of the containment element, and wherein a portion of the bended portion is porous.

14. The gasification system of claim 9, wherein the pipeline comprises an adapter with additional tubular elements in fluid communication with the adapter and the respective storage tank and the gasifier.

15. The gasification system of claim 9, wherein the storage tank is configured to receive a solid powder and a first gas to form a gas-solid mixture in the storage tank, wherein the tubular element of the pipeline is configured to convey the gas-solid mixture from the storage tank into the gasifier for gasification, and wherein the inlet is configured to introduce a second gas to increase a pressure in the containment element so as to pressurize the second gas into the tubular element.

16. A method for conveyance of a multiphase fluid, comprising:

conveying a multiphase fluid through a tubular element of a pipeline, wherein the pipeline comprises a containment element defining a cavity and an inlet in fluid communication with the cavity, and the tubular element passes through the containment element and a portion thereof is disposed within the cavity so that the inlet of the containment element is in fluid communication with the tubular element through the portion of the tubular element disposed within the cavity; and

introducing a gas into the containment element through the inlet thereof to increase a pressure in the containment element to pressurize the gas into the tubular element so as to form a gas film between the multiphase fluid and the portion of the tubular element disposed within the cavity.

17. The method of claim 16, wherein the portion of the tubular element accommodated within the cavity is porous so that the inlet is in fluid communication with the tubular element.

18. The method of claim 16, wherein the tubular element comprises a bended portion accommodated within the cavity of the containment element, and wherein a portion of the bended portion is porous.

19. The method of claim 16, wherein the multiphase fluid comprise a gas-solid mixture mixed by a gas and a solid powder, and wherein the pressure in the containment element is higher than a pressure in the tubular element.

20. The method of claim 16, wherein the gas introduced into the containment element is co-current with a flow of the gas-solid mixture in the tubular element.