Particle separation device

Patent metadata

Field	Value
Publication number	US-9302276-B2
Application number	US-201213550927-A
Country	US
Kind code	B2
Filing date	Jul 17, 2012
Priority date	May 31, 2012
Publication date	Apr 5, 2016
Grant date	Apr 5, 2016

Abstract

A particle separation device includes a particle separation member having a plurality of conical cavities each having a narrow open end and a wide open end for separating particles from unclean liquid; a fluid distribution member for distributing the liquid to the cavities; a particle collection member for collecting particles; and a fluid guiding member for guiding cleaned liquid from the particle separation member to an outlet of the device. The particle collection member includes a chamber and a magnet for holding particles inside the chamber. A vortex finder is disposed in each of the cavities. The vortex finder has a skirt portion and a distal end having a reduced wall thickness.

First claim

The invention claimed is:

1. A particle separation device comprising:
an inlet pipe receiving liquid from a source;
a particle separation member configured for separating particles from liquid, the particle separation member comprising a plurality of cavities each having a narrow open end, a wide open end and a conical part between the narrow and wide ends;
a fluid distribution member configured for distributing the liquid to the cavities and connected to the inlet pipe;
a particle collection member in communication with the narrow open ends of the cavities of the particle separation member and configured for collecting particles;
a fluid guiding member in communication with the wide open ends of the cavities of the particle separation member configured for guiding the liquid from the particle separation member to an outlet at a top end of the device; and
a drain connected to the particle collection member,
wherein the particle collection member comprises a chamber and a ring magnet fixed with respect to the chamber, wherein the drain is centered with respect to the ring magnet and drains parallel to the outlet through a bottom end of the device, and wherein the inlet pipe enters the particle separation member perpendicular to a direction of flow at the drain and the outlet.

2. The device of claim 1 , wherein the ring magnet is detachably fixed at an inner or outer surface of the chamber.

3. The device of claim 1 , wherein the drain is closed by a valve.

4. The device of claim 1 , wherein a vortex finder is disposed between the wide open end of each of the cavities of the particle separation member and the fluid guiding member, the vortex finder comprising a cylindrical body, a skirt portion, a distal end with a reduced wall thickness adjacent the skirt portion remote from the fluid guiding member and a central passage forming a path for the liquid to pass from the cavity to the fluid guiding member.

5. The device of claim 4 , wherein the distal end of the vortex finder has an inclined inner surface.

6. The device of claim 4 , wherein the wide open end of each cavity further comprises a cylindrical extension portion, the skirt portion of the vortex finder being disposed in the cylindrical extension portion of a corresponding cavity.

7. The device of claim 6 , wherein the fluid distribution member comprises a plurality of distribution passages each having a start section, a cylindrical distal section connected to the cylindrical extension portion of a corresponding cavity, and a transition section connected between the start section and the distal section, the transition section joining to the cylindrical distal section in a tangential.

8. The device of claim 7 , wherein the bottom surface of transition section facing the particle separation member is curved.

9. The device of claim 7 , further comprising an entry channel that is completely located outside of the chamber of the particle collection member.

10. The device of claim 9 , wherein the entry channel is connected to the inlet pipe, the inlet pipe extending in a radial direction of the particle separation member, an outlet section extending in an axial direction of the particle separation member, the outlet section having a conical distal end the diameter of which gradually increases in a direction away from the inlet section, and the start sections of the distribution passages are connected to the conical distal end.

11. The device of claim 10 , wherein the fluid distribution member further comprises a protrusion located between the start sections of the distribute passages, the protrusion having a curved surface facing the conical distal end of the entry channel.

12. The device of claim 1 , wherein pressure sensors are respectively disposed in the particles separation member and fluid guiding member, and a pH sensor is disposed in the fluid guiding member.

13. The device of claim 1 , wherein the particle separation member, fluid guiding member, and particle collection member are made from transparent or translucent materials.

14. The device of claim 13 , wherein the materials are thermally stable plastics materials.

15. The device of claim 14 , wherein surfaces of the materials for guiding liquid are modified with polymers selected from the group of fluorodecyl polyhedral oligomeric silsesquioxanes.

16. The device of claim 14 , wherein the plastics materials are reinforced with mica particles, glass fibers or carbon micro and nano-fibers.

Assignees

• Pesetsky Serge
• Caparros Chad J
• Fang Chuan Hui
• Johnson Electric Sa

Inventors

• Pesetsky Serge
• Caparros Chad J
• Fang Chuan Hui

Classifications

• B01D21/267

  by using a cyclone · CPC title

• B03C1/0332

  using permanent magnets · CPC title

• B04C5/28 Primary

  for parallel flow · CPC title

• B03C2201/28

  Parts being designed to be removed for cleaning purposes · CPC title

• B01D2221/02

  Small separation devices for domestic application, e.g. for canteens, industrial kitchen, washing machines · CPC title