Inlet device for a vertical pump and an arrangement comprising such an inlet device

Patent metadata

Field	Value
Publication number	US-10844874-B2
Application number	US-201715653798-A
Country	US
Kind code	B2
Filing date	Jul 19, 2017
Priority date	Aug 15, 2016
Publication date	Nov 24, 2020
Grant date	Nov 24, 2020

Abstract

An intake device for a pump includes an inlet section extending in a first direction for guiding a fluid, an outlet section for delivering the fluid to an inlet of the pump, the outlet section extending in a second direction perpendicular to the first direction, and a diverting section for diverting the fluid from the first to the second direction, the diverting section connecting the inlet and outlet sections, and having a bottom wall opposing the an outlet opening and a back wall opposing an inlet opening, the inlet section tapering towards the diverting section to decrease a cross sectional area of the inlet section, the diverting section includes a splitter member arranged on the bottom wall that tapers in the second direction towards the outlet opening, and the outlet section includes an essentially bell shaped reducing part for decreasing a cross sectional area of the outlet section.

First claim

The invention claimed is:

1. An intake device for being mounted to a vertical pump, the intake device comprising:
an inlet section with an inlet opening for a fluid to be pumped by the vertical pump, the inlet section extending in a first direction for horizontally guiding a flow of the fluid;
an outlet section with an outlet opening for delivering the fluid to an inlet of the vertical pump, the outlet section connectable to an inlet of the vertical pump, the outlet section extending in a second direction perpendicular to the first direction; and
a diverting section configured to divert the flow of fluid from the first direction to the second direction, the diverting section connecting the inlet section with the outlet section, and having a bottom wall opposing the outlet opening and a back wall opposing the inlet opening, the inlet section tapering towards the diverting section decreasing a cross section area of the inlet section,
the diverting section comprising a splitter member arranged on the bottom wall and tapering in the second direction towards the outlet opening,
the outlet section comprising a reducing part decreasing a cross section area of the outlet section, the reducing part being essentially bell shaped, and
the inlet section comprising a bottom, a cover, and two side walls each connecting the bottom with the cover, the inlet section comprising a continuous partition wall extending in the first direction from the inlet opening into the diverting section, and extending in the second direction from the bottom to the cover, the continuous partition wall including an end disposed in direct contact with the splitter member.

2. The intake device in accordance with claim 1 , wherein the partition wall extends at the bottom wall of the diverting section and ending at or adjacent to the splitter member.

3. The intake device in accordance with claim 1 , wherein the partition wall divides the inlet opening into two orifices having the same cross sectional area perpendicular to the first direction.

4. The intake device in accordance with claim 1 , wherein the partition wall has an ending edge adjacent to the splitter member, the ending edge starting at the bottom wall and being inclined both with respect to the first and the second direction.

5. The intake device in accordance with claim 1 , wherein the bottom wall of the diverting section extends with respect to the first direction beyond the outlet opening such that there is a displacement in the first direction between the back wall of the diverting section and the wall delimiting the outlet opening.

6. The intake device in accordance with claim 1 , further comprising a stopper wall arranged between the back wall of the diverting section and the splitter member.

7. The intake device in accordance with claim 6 , wherein the stopper wall extends in the first direction and the stopper and the partition wall are aligned along an axis.

8. The intake device in accordance with claim 6 , wherein the stopper wall has a beginning edge adjacent to the splitter member, the beginning edge starting at the bottom wall and being inclined both with respect to the first and the second direction.

9. The intake device in accordance with claim 1 , wherein the splitter member is arranged to be centered with respect to the outlet opening.

10. The intake device in accordance with claim 1 , wherein the splitter member is rotationally symmetrical with respect to a longitudinal axis extending in the second direction.

11. The intake device in accordance with claim 1 , wherein the splitter member is cone-shaped or frustoconical.

12. The intake device in accordance with claim 1 , wherein the intake device is formed from a plurality of metallic parts which are joined.

13. The intake device in accordance with claim 12 , wherein the plurality of metallic parts comprises metallic sheets or metallic plates or metallic bands.

14. An arrangement comprising:
a vertical pump; and
an intake device for the vertical pump, the intake device being designed according to claim 1 .

15. The arrangement in accordance with claim 14 , wherein the outlet section of the intake device is connected to the inlet of the vertical pump.

16. The intake device in accordance with claim 12 , wherein the metallic parts are joined by welding.

17. The intake device in accordance with claim 1 , wherein the the intake device is configured to be retrofitted onto the vertical pump.

18. The intake device in accordance with claim 1 , wherein an end of the bottom and an end of the cover define the inlet opening, and the end of the continuous partition wall is a first end and the continuous partition wall includes a second end, the second end being disposed at the inlet opening and the first end being disposed in direct contact with the splitter member.

Assignees

• Sulzer Management Ag

Inventors

• Rodrigues Arnaldo

Classifications

• F04D29/669

  especially adapted for liquid pumps (F04D29/18 takes precedence) · CPC title

• F04D29/628

  especially adapted for liquid pumps · CPC title

• F04D29/445 Primary

  especially adapted for liquid pumps · CPC title

• F04D29/708

  specially for liquid pumps · CPC title

• F04D29/4273

  suction eyes · CPC title