Non-welded type branch piping reinforcement apparatus

• US 11,199,277 B2
• Filed: 10/23/2019
• Issued: 12/14/2021
• Est. Priority Date: 10/24/2018
• Status: Active Grant

• Current Assignee: Kepco Engineering & Construction Company Incorporated (Government of South Korea)
• Original Assignee: Kepco Engineering & Construction Company Incorporated (Government of South Korea)
• Inventors: Won, Youn Ho, Kim, Soo Kyum, Jeong, Chang Bin, Lee, Dong Geon
• Primary Examiner(s): Hook, James F
• Application Number:
  US16/661,137
• Publication Number:
  US 20200132226A1
• Time in Patent Office: 783 Days
• Field of Search: 138 99, 138 92, 138 94
• CPC Class Codes: F16L 21/04 in which sealing rings are compressed by axially-movable members for joints using a threaded member F16L19/07; quick acting couplings F16L37/00; devices for covering leaks from inside a pipe F16L55/162
• CPC Class Codes: F16L 3/085 for pipes being in an angled relationship to each other
• CPC Class Codes: F16L 3/1066 with three or more members surrounding the pipe
• CPC Class Codes: F16L 41/02 Branch units, e.g. made in one piece, welded, riveted
• CPC Class Codes: F16L 55/035 in the form of specially adapted hangers or supports
• CPC Class Codes: F16L 55/07 Arrangement or mounting of devices, e.g. valves, for venting or aerating or draining apparatus for draining F16T
• CPC Class Codes: F16L 55/168 from outside the pipe
• CPC Class Codes: F16L 55/17 by means of rings, bands or sleeves pressed against the outside surface of the pipe or hose
• CPC Class Codes: F16L 57/005 specially adapted for the ends of pipes
• CPC Class Codes: F16L 57/02 against cracking or buckling

Abstract

A non-welded type branch piping reinforcement apparatus capable of preventing damage to a branch pipe system by increasing the strength of the branch pipe system by covering and protecting the branch pipe system connected to a header pipe, by a joint clamp, a connection pipe clamp, and a valve clamp includes: a joint clamp arranged to cover the branch pipe joint and the connection pipe and having an arc-shaped cross section; a connection pipe clamp arranged to cover the connection pipe and having an arc-shaped cross section; and a valve clamp arranged to cover the connection pipe and the valve and having an arc-shaped cross section, wherein one end of the connection pipe clamp is connected to the joint clamp and the other end of the connection pipe clamp is connected to the valve clamp.

Claims

1. A non-welded type branch piping reinforcement apparatus for reinforcing a branch pipe system including a branch pipe joint connected to a header pipe, a connection pipe connected to the branch pipe joint, and a valve connected to the connection pipe,

the non-welded type branch piping reinforcement apparatus comprising:

a joint clamp arranged to cover the branch pipe joint and the connection pipe and having an arc-shaped cross section;

a connection pipe clamp arranged to cover the connection pipe and having an arc-shaped cross section; and

a valve clamp arranged to cover the connection pipe and the valve and having an arc-shaped cross section,

wherein one end of the connection pipe clamp is connected to the joint clamp and the other end of the connection pipe clamp is connected to the valve clamp,

wherein the joint clamp is provided in plurality to cover the branch pipe joint and the connection pipe, the connection pipe clamp is provided in plurality to cover the connection pipe, and the valve clamp is provided in plurality to cover the connection pipe and the valve,

wherein a first fastening portion extending in a plate shape along the joint clamp while protruding from both side ends of an arc-shape of the joint clamp and provided with a first fastening hole into which a first fastening bolt is to be fitted,

wherein a second fastening portion extending in a plate shape along the connection pipe clamp while protruding from both side ends of an arc-shape of the connection pipe clamp and provided with a second fastening hole into which a second fastening bolt is to be fitted; and

a third fastening portion extending in a plate shape along the valve clamp while protruding from both side ends of an arc-shape of the valve clamp and provided with a third fastening hole into which a third fastening bolt is to be fitted,

wherein a first spacer formed to have a larger diameter than the first fastening hole and fitted between a plurality of first fastening portions,

wherein a second spacer formed to have a larger diameter than the second fastening hole and fitted between a plurality of second fastening portions; and

a third spacer formed to have a larger diameter than the third fastening hole and fitted between a plurality of third fastening portions.

2. The non-welded type branch piping reinforcement apparatus of claim 1, wherein

one end and the other end of the connection pipe clamp are provided with a plate-shaped second connection plate having a second connection hole formed therein while extending in a direction across an extension direction of the connection pipe,

the other end of the joint clamp is provided with a plate-shaped first connection plate having a first connection hole formed therein while extending in a direction across an extension direction of the connection pipe, and

one end of the valve clamp is provided with a plate-shaped third connection plate having a third connection hole formed therein while extending in a direction across an extension direction of the connection pipe.

3. The non-welded type branch piping reinforcement apparatus of claim 1, further comprising:

a plate-shaped first stress reinforcement plate protruding from a side surface of the joint clamp and extending along the joint clamp;

a plate-shaped second stress reinforcement plate protruding from a side surface of the connection pipe clamp and extending along the connection pipe clamp; and

a plate-shaped third stress reinforcement plate protruding from a side surface of the valve clamp and extending along the valve clamp.

4. The non-welded type branch piping reinforcement apparatus of claim 3, further comprising:

a stiffener formed in a plate shape, coupled to the first stress reinforcement plate, and provided with an insertion hole into which an adjustment bolt is to be inserted,

wherein the first stress reinforcement plate is provided with a groove that is larger than a diameter of the adjustment bolt and extends in a transverse direction and one end of the stiffener contacts the header pipe while having a curved surface formed corresponding to the curvature of the header pipe.

5. The non-welded type branch piping reinforcement apparatus of claim 1, wherein

the joint clamp and the connection pipe clamp are integrally manufactured or the connection pipe clamp and the valve clamp are integrally manufactured.

6. The non-welded type branch piping reinforcement apparatus of claim 1, wherein

one end of the first stress reinforcement plate contacts the header pipe while having a curved surface formed corresponding to the curvature of the header pipe, and

one end of the first fastening portion contacts the header pipe while having a curved surface formed corresponding to the curvature of the header pipe.

7. The non-welded type branch piping reinforcement apparatus of claim 1, wherein

a plurality of bolt holes into which a fixing bolt is to be fastened are formed at a side surface of the valve clamp along a circumference of the valve clamp, and

the fixing bolt is fastened into the bolt hole to contact a surface of the valve, wherein a friction filler is fitted between the fixing bolt and the surface of the valve.