Integrated apparatus for mixing and separating fluid phases and method therefor

Patent metadata

Field	Value
Publication number	US-11173458-B2
Application number	US-201916351306-A
Country	US
Kind code	B2
Filing date	Mar 12, 2019
Priority date	Mar 14, 2018
Publication date	Nov 16, 2021
Grant date	Nov 16, 2021

Abstract

This disclosure relates generally to mixing and separating phases of a mixture, and, more particularly, to an integrated apparatus for mixing and separating immiscible fluid phases and method therefor. The apparatus includes an inlet section, a mixing section, a separating section, and an outlet section. The mixing section includes multiple spiral turns for separately introducing the fluid phases of different specific gravity into the mixing section. Each of the spiral turns includes a helical channel followed by a counter-helical channel for enabling mixing of fluid phases. The counter-helical channel changes the direction of flow of fluid phases upon flow of said fluid phases from the helical channel to the counter-helical channel. The separating section extends from the mixing section separates the fluid phases based on specific gravity difference of fluid phases. The outlet section facilitates in separate withdrawal of fluid phases based on the specific gravity of said fluid phases.

First claim

What is claimed is:

1. An apparatus for mixing and separating fluid phases by introducing a mixture comprising a plurality of fluid phases of distinct specific gravity, comprising:
an inlet section comprising an inner inlet and an outer inlet for separately introducing the plurality of fluid phases of distinct specific gravity into the mixing section;
a mixing section extending from the inlet section for mixing the plurality of fluid phases based on the difference of specific gravity and immiscibility associated the plurality of fluid phases, the mixing section comprising a first spiral section comprising a first plurality of spiral turns, each spiral turn of the first plurality of spiral turns having a helical channel followed by a counter-helical channel for enabling mixing of the plurality of fluid phases, the counter-helical channel changes the direction of flow of the plurality of fluid phases upon flow of the plurality of fluid phases from the helical channel to the counter-helical channel;
a separating section extending from the mixing section and capable of separating the plurality of fluid phases based on the specific gravity difference between said fluid phases, the separating section comprising a second spiral section extending from the mixing section and configured to receive a mixture of the plurality of fluid phases from the mixing section, the second spiral section comprising a second plurality of spiral turns for enabling separation of the plurality of fluid phases; and
an outlet section configured at an end portion of the separating section, the outlet portion comprising an outer outlet and an inner outlet to facilitate separate withdrawal of the plurality of fluid phases of the mixture.

2. The apparatus of claim 1 , wherein an inner wall of the helical channel extends to form an outer wall of the counter-helical channel, and an outer wall of the helical channel extends to form an inner wall of the counter-helical channel.

3. The apparatus of claim 1 , wherein the mixing section comprises a plurality of baffles configured within one or more of the helical channel and the counter-helical channel of the first plurality of spiral turns for enhanced mixing of the plurality of fluid phases.

4. The apparatus of claim 1 , wherein the mixing section comprises a plurality of baffles configured at a core of the one or more of the helical channels and the counter-helical channels.

5. The apparatus of claim 1 , wherein the inner inlet facilitates in introducing a fluid phase associated with relatively higher specific gravity from amongst the plurality of fluid phases in the inlet section, and the outer inlet facilitates in introducing a fluid phase associated with relatively lower specific gravity from amongst the plurality of fluid phases in the inlet section.

6. The apparatus of claim 1 , wherein the inlet section further comprises an inlet connector for coupling the inner inlet and the outer inlet to the mixing section.

7. The apparatus of claim 1 , wherein each helical channel is coupled to the corresponding counter-helical channel by a first coupling.

8. The apparatus of claim 1 , wherein each spiral turn of the second plurality of second turns is coupled to a subsequent spiral turn by a second coupling.

9. The apparatus of claim 1 , wherein the outlet section further comprises an outlet connector for coupling the separating section to the outer outlet and the inner outlet inlet.

10. The apparatus of claim 1 , wherein the inner outlet facilitates in withdrawal of a fluid phase associated with relatively higher specific gravity from amongst the plurality of fluid phases, and the outer outlet facilitates in withdrawal of a fluid phase associated with relatively lower specific gravity from amongst the plurality of fluid phases.

11. A method for mixing and separating fluid phases, the method comprising:
introducing, in an apparatus for mixing and separating the fluid phases, a mixture comprising a plurality of fluid phases of distinct specific gravity, the apparatus comprising:
an inlet section comprising an inner inlet and an outer inlet for separately introducing the plurality of fluid phases of distinct specific gravity into a mixing section,
the mixing section extending from the inlet section for mixing the plurality of fluid phases based on the difference of specific gravity and immiscibility associated the plurality of fluid phases, the mixing section comprising a first spiral section comprising a first plurality of spiral turns, each spiral turn of the first plurality of spiral turns having a helical channel followed by a counter-helical channel for enabling mixing of the plurality of fluid phases, the counter-helical channel changes the direction of flow of the plurality of fluid phases upon flow of the plurality of fluid phases from the helical channel to the counter-helical channel,
a separating section extending from the mixing section and capable of separating the plurality of fluid phases based on the specific gravity difference between said fluid phases, the separating section comprising a second spiral section extending from the mixing section and configured to receive a mixture of the plurality of fluid phases from the mixing section, the second spiral section comprising a second plurality of spiral turns for enabling separation of the plurality of fluid phases, and
an outlet section configured at an end portion of the separating section, the outlet section comprising an outer outlet and an inner outlet to facilitate separate withdrawal of the plurality of fluid phases of the mixture; and

withdrawing separately, from the outlet section, the plurality of fluid phases based on the specific gravity of the plurality of fluid phases.

12. The method of claim 11 , wherein introducing the plurality of fluid phases comprises introducing a fluid phase associated with relatively higher specific gravity from amongst the plurality of fluid phases in the inner inlet, and introducing a fluid phase associated with relatively lower specific gravity from amongst the plurality of fluid phases in the outer inlet.

13. The method of claim 11 , wherein withdrawing separately the plurality of fluid phases comprises withdrawing a fluid phase associated with a relatively lower specific gravity from the outer outlet of the outlet section.

14. The method of claim 11 , wherein withdrawing separately the plurality of fluid phases comprises withdrawing a fluid phase associated with a relatively higher specific gravity from the inner outlet of the outlet section.

Assignees

• Tata Consultancy Services Ltd

Inventors

• Pukkella Arjun Kumar
• Subramanian Sivakumar
• Vysyaraju Raviraju

Classifications

• B01F25/4331 Primary

  Mixers with bended, curved, coiled, wounded mixing tubes or comprising elements for bending the flow · CPC title

• B01F25/4323

  using elements provided with a plurality of channels or using a plurality of tubes which can either be placed between common spaces or collectors · CPC title

• B01D53/24

  by centrifugal force (centrifuges B04B; cyclones B04C) · CPC title

• B01D17/0217 Primary

  by centrifugal force · CPC title

• B01D45/16

  generated by the winding course of the gas stream {, the centrifugal forces being generated solely or partly by mechanical means, e.g. fixed swirl vanes} · CPC title