High pressure counterflow heat exchanger

Patent metadata

Field	Value
Publication number	US-11598583-B2
Application number	US-202016796579-A
Country	US
Kind code	B2
Filing date	Feb 20, 2020
Priority date	Jan 27, 2016
Publication date	Mar 7, 2023
Grant date	Mar 7, 2023

Abstract

A heat exchanger including a plurality of heat exchanger plates in a stacked arrangement. At least two counterflow sections are positioned adjacent each other. The counterflow sections comprise an intermediate section of each heat exchanger plate. The heat exchanger plates configured to transfer heat between a first fluid and a second fluid flowing in an opposite directions from the first fluid through a respective heat exchanger plate. At least one tent section is positioned on each end of each counterflow section. The tent sections are configured to angle the flow direction of the first and second fluids in the tent sections relative to the flow direction in the counterflow sections. A wall is positioned between each tent section and each counterflow section configured to provide a load path at opposite ends of the heat exchanger to oppose forces due to pressure on the tent sections.

First claim

What is claimed is:

1. A heat exchanger, comprising:
a plurality of heat exchanger plates in a stacked arrangement;
at least two counterflow sections positioned laterally adjacent one another, the at least two counterflow sections comprising an intermediate section of each of the plurality of heat exchanger plates, the heat exchanger plates configured to transfer heat between a first fluid flowing in a first fluid path and a second fluid flowing in a second fluid path in opposite directions from one another through respective heat exchanger plates;
a first tent section provided on and in fluid communication with a first end of each of the at least two counterflow sections, and a second tent section provided on and in fluid communication with a second end of each of the at least two counterflow sections, each of the first and second tent sections configured to angle the flow direction of the first and second fluids relative to the flow direction in the at least two counterflow sections;
a first header section connected to each first tent section, adapted and configured to distribute fluid to the first fluid path;
a second header section connected to each second tent section, adapted and configured to distribute fluid from the first fluid path; and
a reinforcing wall disposed between the at least two counterflow sections, extending longitudinally into and connecting to one of the first header section and the second header section, thereby reinforcing the respective header section, by providing a load path to oppose forces due to pressure on the respective header section.

2. The heat exchanger of claim 1 , further comprising at least two primary inlet ports configured to allow the first fluid to enter the first fluid path of the heat exchanger and at least two primary outlet ports configured to allow the first fluid to exit the first fluid path of heat exchanger, each primary inlet port and primary outlet port positioned through a respective tent.

3. The heat exchanger of claim 2 , wherein the inlet ports of the first fluid are separated by the reinforcing wall and wherein the outlet ports of the first fluid are separated by the reinforcing wall.

4. The heat exchanger of claim 2 , further comprising at least two secondary inlet ports configured to allow the second fluid to enter the heat exchanger and at least two secondary outlet ports configured to allow the second fluid to exit the heat exchanger, each secondary inlet port and secondary outlet port positioned through a respective tent.

5. The heat exchanger of claim 4 , wherein the secondary inlet ports of the second fluid are separated by the reinforcing wall and wherein the secondary outlet ports of the second fluid are separated by the reinforcing wall.

6. The heat exchanger of claim 5 , wherein the primary inlet ports for the first fluid are on an opposing end of the secondary inlet ports for the second fluid and wherein the primary outlet ports for the first fluid are on an opposing end of the secondary outlet ports for the second fluid.

7. The heat exchanger of claim 6 , wherein the first fluid includes a cooling fluid and the second fluid is configured to transfer heat to the first fluid within the at least two counterflow sections.

8. The heat exchanger of claim 7 , wherein each of the plurality of heat exchanger plates is comprised of a first layer for the first fluid and a second layer for the second fluid to flow therethrough, the first and second layers being positioned adjacent within the stacked arrangement of heat exchanger.

9. The heat exchanger of claim 1 , wherein each of the plurality of heat exchanger plates includes a cold layer with the first fluid flowing therethrough, the first fluid including a cooling fluid, the cold layer having primary inlet ports through the first tent section and primary outlet ports through the second tent section.

10. The heat exchanger of claim 9 , wherein the primary inlet ports of adjacent first tent sections are aligned leading away from one another, such that the first fluid entering the primary inlet ports is separated through the counterflow section.

11. The heat exchanger of claim 9 , wherein each of the plurality of heat exchanger plates includes a hot layer with the second fluid flowing therethrough, the second fluid configured to transfer heat from the cooling fluid, the hot layer having secondary inlet ports through the second tent section and secondary outlet ports through the first tent section.

12. The heat exchanger of claim 11 , wherein the secondary inlet ports of adjacent second tent sections are aligned leading away from one another, such that the second fluid entering the secondary inlet ports is separated through the counterflow section.

13. The heat exchanger of claim 1 , wherein at one of the first and second ends of the at least two counterflow sections, each tent includes its own header and wherein at an opposing end of the counterflow sections, two tents share a single header separated by the reinforcing wall.

14. The heat exchanger of claim 1 , comprising four counterflow sections and a reinforcing wall separating each counterflow section.

15. The heat exchanger of claim 1 , wherein the reinforcing wall extends continuously from at least one header section on each of the plurality of heat exchanger plates along the entire length of the at least two counterflow sections.

Assignees

• Hamilton Sundstrand Corp

Inventors

• Schwalm Gregory K

Classifications

• F28F3/025 Primary

  the means being corrugated, plate-like elements · CPC title

• F28F3/06

  the means being attachable to the element · CPC title

• F28D9/0068

  with means for changing flow direction of one heat exchange medium, e.g. using deflecting zones · CPC title

• F28F2250/104

  with parallel flow · CPC title

• F28F3/08

  Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning · CPC title