Bladed drum for rotary separator system

Patent metadata

Field	Value
Publication number	US-9919251-B2
Application number	US-201715646121-A
Country	US
Kind code	B2
Filing date	Jul 11, 2017
Priority date	Mar 9, 2010
Publication date	Mar 20, 2018
Grant date	Mar 20, 2018

Abstract

A separator method and apparatus that includes a rotatable drum defining an annular passageway therein, a plurality of blades coupled to the rotatable drum and located in the annular passageway, each of the plurality of blades including a leading section, a trailing section, a concave surface, and a convex surface, the concave and convex surfaces extending from the leading section to the trailing section, each of the plurality of blades disposed circumferentially adjacent to at least another one of the plurality of blades so as to define blade flowpaths therebetween, and a housing at least partially surrounding the rotatable drum and defining a fluid collection chamber fluidly communicating with the annular passageway.

First claim

What is claimed is:

1. A rotary separator, comprising:
a rotatable drum comprising an inner wall and an outer wall radially offset from the inner wall, the inner wall and the outer wall defining an annular passageway therebetween, the annular passageway extending axially from an inlet at a front surface of the rotatable drum to an outlet at a rear surface of the rotatable drum, wherein the rotatable drum is configured to separate a higher-density component of a fluid from a lower-density component of the fluid;
a plurality of blades disposed in the annular passageway and extending from the inner wall to the outer wall such that adjacent blades of the plurality of blades define respective blade flowpaths therebetween; and
a housing at least partially surrounding the rotatable drum and defining a collection chamber fluidly coupled to the outlet of the rotatable drum, wherein substantially all of the higher-density component of the fluid is directed into the collection chamber, and substantially all of the lower-density component of the fluid is directed through the outlet of the rotatable drum and wherein the housing further defines a housing inlet and a housing outlet, and the annular passageway is in fluid communication with the housing outlet and the collection chamber via the outlet of the rotatable drum.

2. The rotary separator of claim 1 , wherein the plurality of blades comprises a first row of blades disposed in the annular passageway and a second row of blades disposed axially adjacent the first row of blades.

3. The rotary separator of claim 1 , wherein each blade of the plurality of blades extends at least about 60% of an axial length of the rotatable drum.

4. The rotary separator of claim 1 , wherein the inner wall and the outer wall of the rotatable drum are substantially parallel with one another.

5. The rotary separator of claim 1 , wherein the annular passageway is frustoconical.

6. The rotary separator of claim 5 , wherein the rotatable drum is frustoconical.

7. The rotary separator of claim 1 , wherein each blade of the plurality of blades comprises a concave surface and a convex surface extending between a leading section and a trailing section thereof.

8. The rotary separator of claim 7 , wherein each blade of the plurality of blades is substantially identical to the other blades of the plurality of blades.

9. The rotary separator of claim 8 , wherein the trailing section of each blade of the plurality of blades extends a length that is at least about twice as long as a length of the leading section.

10. A rotary separator, comprising:
a housing defining a collection chamber, a housing inlet, and a housing outlet;
a rotatable drum disposed adjacent the housing and comprising an inner wall and an outer wall radially offset from the inner wall, the inner wall and the outer wall defining an inlet at a front surface of the rotatable drum, an outlet at a rear surface of the rotatable drum, and a fluid passageway extending from the inlet of the rotatable drum to the outlet of the rotatable drum, the fluid passageway in fluid communication with the housing inlet via the inlet of the rotatable drum and with the collection chamber via the outlet of the rotatable drum; and
a plurality of blades disposed in the fluid passageway and at least partially extending between the inner wall and the outer wall of the rotatable drum,
wherein substantially all of a higher-density component of a process fluid is directed into the collection chamber, and substantially all of a lower-density component of the process fluid is directed through the outlet of the rotatable drum.

11. The rotary separator of claim 10 , wherein each blade of the plurality of blades comprises a concave surface and a convex surface extending between a leading section and a trailing section thereof.

12. The rotary separator of claim 11 , wherein each blade of the plurality of blades is substantially identical to the other blades of the plurality of blades.

13. The rotary separator of claim 10 , wherein the plurality of blades comprises a first row of blades disposed in the fluid passageway and a second row of blades disposed axially adjacent the first row of blades.

14. The rotary separator of claim 10 , wherein the inner wall and the outer wall define a radial length of the fluid passageway, and the radial length is substantially constant between the inlet of the rotatable drum and the outlet of the rotatable drum.

15. A rotary separator, comprising:
a rotatable drum having an inner wall and an outer wall radially offset from the inner wall, the inner wall and the outer wall defining an annular passageway extending from an inlet at a front surface of the rotatable drum to an outlet at a rear surface of the rotatable drum, the rotatable drum being configured to separate a higher-density component of a fluid from a lower-density component of the fluid;
at least one row of blades circumferentially disposed in the annular passageway, each blade of the at least one row of blades extending from the inner wall to the outer wall such that circumferentially adjacent blades of the at least one row of blades define respective blade flowpaths therebetween; and
a housing disposed adjacent the rotatable drum and defining a collection chamber fluidly coupled to the outlet of the rotatable drum, wherein substantially all of the higher-density component of the fluid is directed into the collection chamber, and substantially all of the lower-density component of the fluid is directed through the outlet of the rotatable drum and wherein the housing further defines a housing inlet and a housing outlet, and the annular passageway is in fluid communication with the housing outlet and the collection chamber via the outlet of the rotatable drum.

16. The rotary separator of claim 15 , wherein each blade of the at least one row of blades comprises a concave surface and a convex surface extending between a leading section and a trailing section thereof.

17. The rotary separator of claim 15 , wherein the at least one row of blades comprises a first row of blades and a second row of blades disposed axially adjacently to one another.

18. The rotary separator of claim 17 , wherein each blade of the at least one row of blades is substantially identical to the other blades of the at least one row of blades.

Assignees

• Dresser Rand Co

Inventors

• Maier William C
• Chochua Gocha

Classifications

• B04B1/04

  with inserted separating walls · CPC title

• B01D17/0217

  by centrifugal force · CPC title

• B01D46/0056

  with rotational movement · CPC title

• F22B37/32

  using centrifugal force · CPC title

• B01D45/14 Primary

  generated by rotating vanes, discs, drums or brushes · CPC title