Apparatus for removing thermal stratification generated by turbulent penetration by using rotation of pipe wall

Patent metadata

Field	Value
Publication number	US-12364959-B2
Application number	US-202217573507-A
Country	US
Kind code	B2
Filing date	Jan 11, 2022
Priority date	Jan 18, 2021
Publication date	Jul 22, 2025
Grant date	Jul 22, 2025

Abstract

Provided is an apparatus for removing thermal stratification generated by turbulent penetration by using a rotation of a pipe wall. The apparatus removes thermal stratification formed in a branch pipe branching from a main pipe through which a high-temperature fluid flows, the apparatus including: a connection body portion including a hollow first body and a hollow second body, the first body being coupled to one side of the branch pipe, and the second body being spaced apart from the first body and connected to other side of the branch pipe; and a hollow rotating part between the first body and the second body, the rotating part rotating around a center of the branch pipe.

First claim

What is claimed is:

1. An apparatus for removing thermal stratification generated by turbulent penetration by using a rotation of a pipe wall, which is provided for removing thermal stratification formed in a branch pipe branching from a main pipe through which a high-temperature fluid flows, wherein, the branch pipe includes a first branch pipe branching from the main pipe, an elbow pipe connected to the first branch pipe to change a flow direction of the high-temperature fluid, and a second branch pipe connected to the elbow pipe, wherein the apparatus is between the elbow pipe and the second branch pipe, the apparatus comprising:
a connection body portion including a hollow first body and a hollow second body, the first body being coupled to the elbow pipe, and the second body being spaced apart from the first body and connected to the second branch pipe;
a hollow rotating part accommodated between the first body and the second body, the rotating part rotating around a center of the branch pipe, and
a driving part configured to rotate the rotating part,
wherein the rotating part has a circular shape having a certain outer diameter, and
the first body and the second body each have a square shape, and each of the first body and the second body has a side length equal to the outer diameter of the rotating part,
wherein edges of the first body and second body protrude outward than the rotating part, preventing the rotating part from being separated from the first body and the second body, and
the rotating part is between the first body and the second body that face each other,
wherein protrusions are formed to protrude and to be spaced apart from each other at certain intervals on an inner circumferential surface of the rotating part,
wherein the protrusions are arranged at intervals of 90° on the inner circumferential surface of the rotating part,
wherein the driving part includes:
a pulley spaced apart from the rotating part;
a power transmission member coupled to the pulley to surround the hollow rotating' part; and
a power supply source configured to rotate the pulley.

2. The apparatus of claim 1 , wherein an inner diameter of the connection body portion and an inner diameter of the rotating part are equal to an inner diameter of the branch pipe.

3. The apparatus of claim 1 , wherein the rotating part includes a ring portion, and a first connection portion and a second connection portion, the ring portion having a ring shape, and the first connection portion and the second connection portion protruding from the ring portion in opposite directions and being inserted into the first body and the second body, respectively, and
a first insertion portion and a second insertion portion into which the first connection portion and the second connection portion are respectively inserted are formed in the first body and the second body, respectively.

4. The apparatus of claim 3 , wherein a first protrusion and a second protrusion protruding in a direction perpendicular to a direction passing through a center of the rotating part are provided in the first connection portion and the second connection portion, respectively, and
a first insertion groove and a second insertion groove into which the first protrusion and the second protrusion are respectively inserted are formed in the first insertion portion and the second insertion portion, respectively.

5. The apparatus of claim 1 , wherein the first body includes:
a first sub-body including a first coupling hole;
a second sub-body including a second coupling hole facing the first coupling hole; and
a first fastening member inserted into the first coupling hole and the second coupling hole to fasten the first sub-body to the second sub-body, and
the second body includes:
a third sub-body including a third coupling hole;
a fourth sub-body including a fourth coupling hole facing the third coupling hole; and
a second fastening member inserted into the third coupling hole and the fourth coupling hole to fasten the third sub-body to the fourth sub-body.

Assignees

• Kepco Eng & Constr Co Inc

Inventors

• Kim Kwang Chu

Classifications

• F15D1/0065

  using active means, e.g. supplying external energy or injecting fluid · CPC title

• F15D1/007

  comprising surfaces being moved by external supplied energy · CPC title

• H02K7/1004

  with pulleys · CPC title

• F15D1/04 Primary

  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 title

• F16L51/00

  Expansion-compensation arrangements for pipe-lines (telescopic pipes F16L27/12) · CPC title