Anti-abrasion pipe fittings for high-speed particle-laden flow

• US 6,422,608 B1
• Filed: 05/04/2000
• Issued: 07/23/2002
• Est. Priority Date: 09/21/1998
• Status: Expired due to Fees

• Current Assignee: Dong JUN Industrial Company Limited
• Original Assignee: Dong JUN Industrial Company Limited
• Inventors: Kim, Dong Won, Kim, Jerng Dong, Kim, Youn Je, Na, Byeong Je, Kwon, Dong Goo, Han, Jean Gean, Lee, Heon Koo
• Primary Examiner(s): Browne, Lynne H.
• Assistant Examiner(s): DUNWOODY, AARON M
• Application Number:
  US09/530,705
• Time in Patent Office: 810 Days
• Field of Search: 285/179, 285/131.1, 285/132.1, 285/133.11
• US Class Current: 285/179
• CPC Class Codes: B65G 53/523 Wear protection
• CPC Class Codes: F15D 1/04 Arrangements of guide vanes in pipe elbows or duct bends; Construction of pipe conduit elements for elbows with respect to flow, e.g. for reducing losses of flow
• CPC Class Codes: F16L 43/00 Bends; Siphons with cleaning apertures F16L45/00

Abstract

An anti-abrasion pipe fitting for high speed particle-laden flow is disclosed, which includes a plurality of flow fields such as a vortex flow field formed at a flow direction changing portion during a fluid feed by expanding an outer side curved portion and inner side curved portion of the flow direction changing portion to the outside of a standard flow range in an elbow shaped curved coupling pipe formed of an upper side straight portion, a lower side straight portion perpendicular to the upper side straight portion, and a flow direction changing portion formed between the upper side straight portion and the lower side straight portion, so that it is possible to prevent an abrasion at a portion in which a flow direction is changed without forming a protection film formed of an anti-abrasive material at an inner wall of a pipe for thereby increasing the life span of the system.

Claims

1. An anti-abrasion pipe fitting for high speed particle-laden flow, having a curved T-shape, and comprising:

a first upstream straight portion;

a downstream straight portion extended on the same axis with respect to the first upstream straight portion;

a second upstream straight portion formed at a certain angle with respect to the first upstream straight portion and downstream straight portion;

an upstream flow direction changing portion formed between the first upstream straight portion and the second upstream straight portion;

a downstream flow direction changing portion formed between the second upstream straight portion and the downstream straight portion; and

a connection portion connecting the first upstream straight portion and the downstream straight portion, wherein the upstream flow direction changing portion is formed with a standard flow range, and the downstream flow direction changing portion is enlarged to the outside of the standard flow range so as to form a vortex flow field during a fluid feed.

2. The pipe fitting of claim 1, wherein a curved recess is formed in an inner surface of the connection portion proximate the juncture of the second upstream straight portion for thereby forming a plurality of flow fields through the connection portion during a fluid feed.

3. An anti-abrasion pipe fitting for high speed particle-laden flow, having a curved Y-shape, and comprising:

a first upstream straight portion;

a downstream straight portion extended on the same axis with respect to the upstream straight portion;

a second upstream straight portion formed at a certain angle less than 90°

with respect to the first upstream straight portion and downstream straight portion,

an upstream flow direction changing portion formed between the first upstream straight portion and the second upstream straight portion;

a downstream flow direction changing portion formed between the second upstream straight portion and the downstream straight portion; and

a connection portion connecting the first upstream straight portion and the downstream straight portion, wherein the upstream flow direction changing portion is formed with a standard flow range, and the downstream flow direction changing portion is enlarged to the outside of the standard flow range so as to form a vortex flow field during a fluid feed.

4. The pipe fitting of claim 3, wherein a curved recess is formed in an inner surface of the connection portion proximate the juncture of the second upstream straight portion for thereby forming a vortex field through the connection portion during a fluid feed by expanding the diameter of the pipe.