Clamp for pipe

Patent metadata

Field	Value
Publication number	US-11268647-B2
Application number	US-201615762793-A
Country	US
Kind code	B2
Filing date	Sep 23, 2016
Priority date	Sep 25, 2015
Publication date	Mar 8, 2022
Grant date	Mar 8, 2022

Abstract

A clamp for a pipe includes: a crevice corrosion-resistant member surrounding the outer surface of the pipe; and a body that is assembled to allow the crevice corrosion-resistant member to be disposed inside thereof and has opening walls formed at both ends thereof, each of the opening walls having an opening hole through which the pipe passes, wherein the crevice corrosion-resistant member is provided to have the same length as a distance between the opening walls, and thus ends of the crevice corrosion-resistant member can be supported by the opening walls, respectively.

First claim

What is claimed is:

1. A clamp for a pipe, comprising:
a crevice corrosion prevention member configured to surround an outer surface of a pipe; and
a body that is assembled to allow the crevice corrosion prevention member to be disposed therein and has opening walls formed at opposite ends thereof, the pipe passing through the opening walls,
wherein the crevice corrosion prevention member has a length that is the same as a distance between the opening walls, and ends of the crevice corrosion prevention member are supported by the opening walls, and
wherein the crevice corrosion prevention member contains an aluminum alloy having an oxide film on a surface of the aluminum alloy so that the crevice corrosion prevention member is corroded earlier than the pipe after the oxide film is damaged under an environment in which crevice corrosion occurs,
wherein the ends of the crevice corrosion prevention member are bent toward the body and inserted into the body,
the body includes a first body and a second body having corresponding shapes and assembled to surround the circumferential surface of the pipe, and the first body and the second body have supporting portions that are depressed so that the crevice corrosion prevention member is mounted,
wherein the crevice corrosion prevention member includes:
a first prevention member mounted on the supporting portion of the first body and configured to be in contact with a part of an outer circumferential surface of the pipe; and
a second prevention member mounted on the supporting portion of the second body and configured to be in contact with a part of the outer circumferential surface of the pipe which is not in contact with the first prevention member,

wherein each of the first prevention member and the second prevention member includes:
a corrosion portion having a shape corresponding to the outer circumferential surface of the pipe and having an inner surface to be in contact with the outer circumferential surface of the pipe;
connection portions extended outward in a radial direction from the corrosion portions; and
flange portions bent from end portions of the connection portions toward the body and disposed radially outward of the connection portions.

2. The clamp for a pipe of claim 1 , wherein an inner diameter of the crevice corrosion prevention member is smaller than an inner diameter of the opening hole.

3. The clamp for a pipe of claim 1 , wherein the opening hole has an inclined surface inclined such that an outside inner diameter thereof is greater than an inside inner diameter thereof.

Assignees

• Samsung Heavy Ind

Inventors

• Yoon Byoung Young
• Lee Min Jung
• Choi Ryeon Ha
• Lim Chae Seon
• Kim Hyun Soo
• Ha Jun Ho

Classifications

• C23F2213/31

  Immersed structures, e.g. submarine structures · CPC title

• C23F13/14

  Material for sacrificial anodes · CPC title

• C23F13/18

  Means for supporting electrodes · CPC title

• C23F2213/32

  Pipes · CPC title

• F16L58/1054

  the coating being placed outside the pipe · CPC title