Erosion-resistant fluid pressure reduction device

Patent metadata

Field	Value
Publication number	US-9856893-B2
Application number	US-201514591396-A
Country	US
Kind code	B2
Filing date	Jan 7, 2015
Priority date	Jan 16, 2014
Publication date	Jan 2, 2018
Grant date	Jan 2, 2018

Abstract

A fluid pressure reduction device is provided. The fluid pressure reduction device includes a body and a diffuser. The body defines an inlet, an outlet, and a fluid passageway extending between the inlet and the outlet. The body is made of a first material having a first hardness. A seating area is defined within the body. The diffuser is removably coupled to the seating area and disposed within the fluid passageway of the body. The diffuser defines at least one flowpath for reducing a pressure of a fluid flowing through the fluid passageway. The diffuser includes a second material having a second hardness greater than the first hardness of the first material.

First claim

The invention claimed is:

1. A fluid pressure reduction device adapted to be disposed between a first pipe and a second pipe, the fluid pressure reduction device comprising:
a body defining an inlet, an outlet, and a fluid passageway extending between the inlet and the outlet;
a seating area defined within the body;
a diffuser disposed within the fluid passageway of the body and coupled to the seating area, the diffuser defining a plurality of flowpaths arranged for reducing a pressure of a fluid flowing through the fluid passageway; and
wherein the diffuser comprises an erosion-resistant, orifice plate or disk defining the plurality of flowpaths and, made of Alloy 6 or 440c.

2. The fluid pressure reduction device of claim 1 , wherein the diffuser is removably coupled to the seating area.

3. The fluid pressure reduction device of claim 2 , wherein the diffuser includes a threaded outer surface and is removably coupled to a threaded portion of the seating area.

4. The fluid pressure reduction device of claim 1 , wherein the diffuser is coupled to the seating area by welds.

5. The fluid pressure reduction device of claim 2 , wherein the seating area of the body includes an inwardly extending rib portion configured to retain the diffuser.

6. The fluid pressure reduction device of claim 5 , wherein the rib portion is downstream of the diffuser.

7. The fluid pressure reduction device of claim 1 , wherein an exterior surface of the diffuser is formed of a hardened material.

8. The fluid pressure reduction device of claim 1 , wherein the body is made of a same material as the first and second pipes.

9. The fluid pressure reduction device of claim 1 ,
wherein the body is made of a first material having a first hardness,
wherein the diffuser is a one-piece diffuser, wherein the erosion-resistant, metallic material has a second hardness; and
wherein the second hardness is greater than the first hardness.

10. The fluid pressure reduction device of claim 9 , wherein the one-piece diffuser can be removed from the fluid passageway and replaced with another one-piece diffuser.

11. A fluid pressure reduction device adapted to be disposed between a first pipe and a second pipe, the fluid pressure reduction device comprising:
a body defining an inlet, an outlet, and a fluid passageway extending between the inlet and the outlet;
a seating area defined within the body;
a diffuser disposed within the fluid passageway of the body and coupled to the seating area, the diffuser defining a plurality of flowpaths arranged for reducing a pressure of a fluid flowing through the fluid passageway; and
wherein the diffuser comprises an erosion-resistant, metallic material, and
wherein the diffuser is coupled to the seating area by welds.

12. The fluid pressure reduction device of claim 11 , wherein the diffuser comprises an orifice plate defining the plurality of flowpaths.

13. The fluid pressure reduction device of claim 11 , wherein the diffuser comprises a disk.

14. A fluid pressure reduction device adapted to be disposed between a first pipe and a second pipe, the fluid pressure reduction device comprising:
a body defining an inlet, an outlet, and a fluid passageway extending between the inlet and the outlet;
a seating area defined within the body;
a diffuser disposed within the fluid passageway of the body and coupled to the seating area, the diffuser defining a plurality of flowpaths arranged for reducing a pressure of a fluid flowing through the fluid passageway; and
wherein the diffuser comprises an orifice plate or disk defining the plurality of flowpaths and formed of an erosion-resistant, metallic material,
wherein the diffuser is removably coupled to the seating area, and
wherein the seating area of the body includes an inwardly extending rib portion configured to retain the diffuser.

15. The fluid pressure reduction device of claim 14 , wherein the rib portion is downstream of the diffuser.

16. The fluid pressure reduction device of claim 14 , wherein the diffuser includes a threaded outer surface and is removably coupled to a threaded portion of the seating area.

Assignees

• Fisher Controls Int Llc

Inventors

• Goodwin Justin Paul
• Johnson Shane M
• Richardson Jonathan W
• Geelhart Theodore Paul
• Hamblin Nathan John

Classifications

• F16L55/02709

  in the form of perforated plates · CPC title

• F15D1/025 Primary

  by means of orifice or throttle elements · CPC title

• F17D1/20

  Arrangements or systems of devices for influencing or altering dynamic characteristics of the systems, e.g. for damping pulsations caused by opening or closing of valves (fluid dynamics F15D; damping pulsations in fluids in pipes in general F16L55/04) · CPC title