Diffuser block and diffuser comprising said diffuser blocks combined with one another

Patent metadata

Field	Value
Publication number	US-9255586-B2
Application number	US-201213667531-A
Country	US
Kind code	B2
Filing date	Nov 2, 2012
Priority date	Nov 3, 2011
Publication date	Feb 9, 2016
Grant date	Feb 9, 2016

Abstract

Provided is a diffuser block used to form a diffuser with a plurality of the diffuser blocks, the diffuser block including: a body having a tube shape including an inner space provided inside the body, an inlet through which a fluid flows into the inner space and an outlet through which the fluid flows out of the inner space; and a first vane portion which protrudes toward the inner space from one side of the body.

First claim

What is claimed is:

1. A diffuser block used to form a diffuser with a plurality of other diffuser blocks, the diffuser block comprising:
a body having a tube shape comprising:
an inner space provided inside the body;
an inlet through which a fluid flows into the inner space; and
an outlet through which the fluid flows out of the inner space; and

a first vane portion which protrudes toward the inner space from one side of the body,
wherein the first vane portion is combined with a second vane portion provided on an adjacent diffuser block of the diffuser block to form an airfoil shape or a wedge shape, and
wherein the first vane portion and the second vane portion comprise a plurality of holes which connects the inner space and an external surface of the body.

2. The diffuser block of claim 1 , wherein the first vane portion protrudes such that a cross-sectional area of the inner space along a circumferential direction of the diffuser block increases in a direction from the inlet to the outlet.

3. The diffuser block of claim 1 , wherein the body comprises a plurality of guide plates, and the first vane portion is provided on a guide plate adjacent to an adjacent diffuser block.

4. The diffuser block of claim 1 , wherein the first vane portion is formed spaced apart from the inlet and the outlet.

5. A diffuser block used to form a diffuser with a plurality of other diffuser blocks, the diffuser block comprising:
a body having a tube shape comprising:
an inner space provided inside the body;
an inlet through which a fluid flows into the inner space; and
an outlet through which the fluid flows out of the inner space; and

a first vane portion which protrudes toward the inner space from one side of the body,
wherein the body comprises a plurality of holes which connects the inner space and the outside of the body, and
wherein a sound-absorbing portion is provided on an external surface of the body, wherein the holes are formed in the external surface.

6. A diffuser formed by combining a plurality of diffuser blocks, wherein each of the diffuser blocks comprises:
a body having a tube shape comprising:
an inner space provided inside the body;
an inlet through which a fluid flows into the inner space; and
an outlet through which the fluid flows out of the inner space; and

a first vane portion which protrudes toward the inner space from one side of the body,
wherein the first vane portion is combined with a second vane portion provided on an adjacent diffuser block of the diffuser block to form an airfoil shape or a wedge shape, and
wherein the first vane portion and the second vane portion comprise a plurality of holes which connects the inner space and an external surface of the body.

7. The diffuser of claim 6 , wherein the first vane portion protrudes such that a cross-sectional area of the inner space along a circumferential direction of the diffuser block increases in a direction from the inlet to the outlet.

8. The diffuser of claim 6 , wherein the body comprises a plurality of guide plates, and the first vane portion is provided on a guide plate adjacent to an adjacent diffuser block.

9. The diffuser of claim 6 , wherein the first vane portion is formed spaced apart from the inlet and the outlet.

10. A diffuser formed by combining a plurality of diffuser blocks, wherein each of the diffuser blocks comprises:
a body having a tube shape comprising:
an inner space provided inside the body;
an inlet through which a fluid flows into the inner space; and
an outlet through which the fluid flows out of the inner space; and

a first vane portion which protrudes toward the inner space from one side of the body,
wherein the body comprises a plurality of holes which connects the inner space and the outside of the body, and
wherein a sound-absorbing portion is provided on an external surface of the body, wherein the holes are formed in the external surface.

11. A diffuser having a ring shape formed by combining a plurality of diffuser blocks, wherein the diffuser comprises:
a plurality of guide plates which forms a body of each of the plurality of diffuser blocks;
a vane portion disposed between first and second guide plates of the plurality of guide plates;
a plurality of holes disposed on the plurality of guide plates and the vane portion; and
a sound-absorbing portion disposed on an external surface of each of the plurality of guide plates and the vane portion.

12. The diffuser of claim 11 , wherein a fluid enters an inner space of the body through an inlet and exits the inner space through an outlet,
wherein the plurality of guide plates forms the inlet and the outlet and a third guide plate of the plurality of guide plates comprises the vane portion.

13. The diffuser of claim 12 , wherein the vane portion comprises:
a first vane portion disposed on a first diffuser block; and
a second vane portion disposed on a second diffuser block,
wherein the first diffuser block is adjacent to the second diffuser block.

14. The diffuser of claim 13 , wherein the first vane portion protrudes toward the inner space such that a cross-sectional area of the inner space along a circumferential direction of the diffuser block increases in a direction from the inlet to the outlet.

Assignees

• Hanwha Techwin Co Ltd
• Hanwha Techwin Co Ltd

Inventors

• Lee Jin-Soo

Classifications

• F04D29/444 Primary

  Bladed diffusers · CPC title

• F04D29/664

  by means of sound absorbing material · CPC title

• F05D2260/96

  Preventing, counteracting or reducing vibration or noise · CPC title

• F01D9/045

  for radial flow machines or engines · CPC title

• F05B2260/96

  Preventing, counteracting or reducing vibration or noise · CPC title