Nozzle for dissolved air flotation system

Patent metadata

Field	Value
Publication number	US-9808810-B2
Application number	US-201414538226-A
Country	US
Kind code	B2
Filing date	Nov 11, 2014
Priority date	Dec 31, 2013
Publication date	Nov 7, 2017
Grant date	Nov 7, 2017

Abstract

A nozzle for a dissolved air flotation system includes a housing, a nozzle connector, and a nozzle body. The housing has an inlet formed at one side and an outlet formed at another side. The nozzle connector couples to the inlet and has an inflow path formed in a longitudinal direction. The nozzle body is disposed in the housing, and includes: a collision portion formed at a first end portion of the nozzle body such that a fluid introduced along the inflow path of the nozzle connector 10 changes its flow direction and collides with an inner wall of a side portion of the housing, a plurality of faces formed at sides of the nozzle body, a plurality of side paths defined between the faces and the inner wall of the housing, and a spurt hole defined at a second end portion of the nozzle body.

First claim

What is claimed is:

1. A nozzle for a dissolved air flotation system, comprising:
a housing of a tube type which has an inlet formed at one side and an outlet formed at another side;
a nozzle connector that couples to the inlet and has an inflow path formed in a longitudinal direction; and
a nozzle body disposed in the housing, the nozzle body including:
a collision portion formed at a first end portion of the nozzle body such that a fluid introduced along the inflow path of the nozzle connector changes its flow direction and collides with an inner wall of a side portion of the housing,
a plurality of faces formed at sides of the nozzle body,
a plurality of side paths defined between the faces and the inner wall of the housing,
a spurt hole defined at a second end portion of the nozzle body, the second end portion being defined as an opposite to the first end portion,
a collision plate disposed at the spurt hole, and
at least two orifices respectively defined between the faces and the spurt hole such that the fluid sprayed through the orifices collides with the collision plate.

2. The nozzle according to claim 1 , wherein the collision portion is a partially dented surface of the first end portion.

3. The nozzle according to claim 2 , wherein the surface includes an inclined surface having a middle portion that is higher than an outskirt portion.

4. The nozzle according to claim 1 , wherein the faces are a pair of parallel surfaces of the nozzle body.

5. The nozzle according to claim 1 , wherein the side paths have different cross-sectional areas.

6. The nozzle according to claim 1 , wherein the at least two orifices are formed at right angles to the faces.

7. The nozzle according to claim 6 , wherein the at least two orifices are formed on different axes.

8. The nozzle according to claim 1 , wherein the collision plate is formed at a right angle to a central axis of one of the offices.

9. A nozzle for a dissolved air flotation system comprising:
a housing having an inlet and an outlet, the inlet being wider than the outlet;
a nozzle connector that includes a cylindrical tube partially disposed in the housing; and
a nozzle body disposed in the housing, the nozzle body including
a plurality of faces formed at sides of the nozzle body that define a plurality of side paths between the faces and an inner wall of the housing,
a collision portion formed at a first end portion of the nozzle body such that a fluid introduced along an inflow path of the nozzle connector collides with the collision portion so as to be diffused into the plurality of side paths, and
a spurt hole defined at a second end portion of the nozzle body that collects flows of the fluids passing through the plurality of side paths, the second end portion being defined as an opposite to the first end portion.

10. The nozzle according to claim 9 , wherein the fluid collides at right angles to the inner wall of the housing.

11. The nozzle according to claim 9 , wherein a collision
surface of the collision portion is at an obtuse angle with respect to a direction in which the fluid is introduced along the inflow path of the nozzle connector.

12. The nozzle according to claim 9 , wherein the side paths have different cross-sectional areas.

13. A nozzle for a dissolved air flotation system comprising:
a housing having an inlet and an outlet, the inlet being wider than the outlet;
a nozzle connector that includes a cylindrical tube partially disposed in the housing; and
a nozzle body disposed in the housing, the nozzle body including
a plurality of faces formed at sides of the nozzle body to define a plurality of side paths between the faces and an inner wall of the housing,
a collision portion formed at a first end portion of the nozzle body such that a fluid introduced along an inflow path of the nozzle connector collides with the collision portion so as to be diffused into the plurality of side paths,
a spurt hole defined at a second end portion of the nozzle body that collects flows of the fluids passing through the plurality of side paths, the second end portion being defined as an opposite to the first end portion, and
at least two orifices are defined in the second end portion of the nozzle body and respectively connect the side paths with the spurt hole.

14. The nozzle according to claim 13 , wherein a collision plate is disposed inside the spurt hole.

15. The nozzle according to claim 14 , wherein the orifices and the collision plate are disposed at right angles to each other.

Assignees

• Doosan Heavy Ind & Construction Co Ltd

Inventors

• Park Sung Won
• Park Yong Hae
• You Seon Jae
• Park Byung Sung

Classifications

• B05B1/34 Primary

  designed to influence the nature of flow of the liquid or other fluent material, e.g. to produce swirl (designed to control volume of flow B05B1/30) · CPC title

• B01F2003/04312

  Operations & Transport · mapped topic

• C02F1/24

  by flotation (C02F1/465 takes precedence) · CPC title

• B03D1/1431 Primary

  Dissolved air flotation machines · CPC title

• B01F3/04503

  Operations & Transport · mapped topic