3D heat exchanger heat transfer enhancement device

Patent metadata

Field	Value
Publication number	US-12163541-B2
Application number	US-202318477685-A
Country	US
Kind code	B2
Filing date	Sep 29, 2023
Priority date	Mar 30, 2021
Publication date	Dec 10, 2024
Grant date	Dec 10, 2024

Abstract

Provided is a heat exchanger heat transfer enhancement device, and in particular, to a heat exchanger heat transfer enhancement device by allowing a fluid flowing into a heat exchanger to form a uniform flow field. A flow distribution device is disposed at an inlet of a pipe through which a fluid is introduced, and the flow distribution device includes a plurality of holes formed on a circumferential surface and an end portion to distribute the fluid to the center and the periphery. Also, a flange is formed at one end and coupled between the pipe and a diffusion portion. The distributed fluid passes through a heat exchanger, and here, one or more screens are disposed to make a flow field of the fluid more uniform.

First claim

What is claimed is:

1. A heat exchanger, heat transfer enhancement device comprising:
a flow distribution device disposed in an inlet through which fluid is introduced, the flow distribution device defining a plurality of holes through which the fluid is discharged;
a heat exchanger through which the fluid introduced from the flow distribution device passes to be cooled;
a diffusion portion having a cross-section that increases from the inlet toward the heat exchanger;
a converging portion having a cross-section that decreases from the heat exchanger toward an outlet;
a screen defining multiple holes arranged adjacent to the heat exchanger; and
a plurality of partitions disposed on an inner surface of the diffusion portion,
wherein each of the plurality of partitions extends in a direction parallel to a flow direction of the fluid, and each of the plurality of partitions is radially spaced from the flow distribution device.

2. The heat exchanger, heat transfer enhancement device of claim 1 , wherein the plurality of partitions uniformly separate an internal volume of the diffusion portion along a circumference of the diffusion portion.

3. The heat exchanger, heat transfer enhancement device of claim 1 , wherein the screen is in front of the heat exchanger.

4. The heat exchanger, heat transfer enhancement device of claim 1 , wherein the screen is in rear of the heat exchanger.

5. The heat exchanger, heat transfer enhancement device of claim 1 , wherein:
the screen is a first screen in front of the heat exchanger, and
the heat exchanger, heat transfer enhancement device further comprises a second screen in rear of the heat exchanger.

6. A method for enhancing heat exchange and heat transfer using the heat exchanger, heat transfer enhancement device of claim 1 , the method comprising:
introducing fluid from a pipe;
adjusting a flow field of the fluid introduced from the pipe and through the inlet by installing the partitions of the diffusion portion,
distributing the introduced fluid using the plurality of holes of the flow distribution device;
moving the distributed fluid to the heat exchanger using the diffusion portion such that a flow of a gas uniformly enters an entire front surface of the heat exchanger;
diffusing the flow of fluid entering the heat exchanger using the screen; and
cooling the fluid passing through the heat exchanger.

Assignees

• Korea Aerospace Res Inst

Inventors

• Kim Chun Taek

Classifications

• F28F13/06

  by affecting the pattern of flow of the heat-exchange media {(F28F13/003 takes precedence; static flow control means in header boxes F28F9/026)} · CPC title

• F28F13/08 Primary

  by varying the cross-section of the flow channels · CPC title

• F28F1/28

  the element being built-up from finned sections · CPC title

• F28D1/053

  the conduits being straight · CPC title

• F28F9/028

  by using inserts for modifying the pattern of flow inside the header box, e.g. by using flow restrictors or permeable bodies or blocks with channels · CPC title