Heat exchanger with a frame plate having a lining

Patent metadata

Field	Value
Publication number	US-11841196-B2
Application number	US-202017078213-A
Country	US
Kind code	B2
Filing date	Oct 23, 2020
Priority date	Oct 25, 2019
Publication date	Dec 12, 2023
Grant date	Dec 12, 2023

Abstract

Lining to be positioned in a frame plate of heat exchanger comprising a stack of heat transfer plates, where the lining comprises a tubular part with a first end formed with a first flange and second flange positioned at a distance to the second end, where the second flange is adapted to form a platform to accommodate a sealing element is positioned on the platform of the second flange and this confined between the edge of the recess, the second flange and the outer section and the neighbouring heat transfer plate in the stack of heat transfer plates.

First claim

What is claimed is:

1. A heat exchanger with a frame plate having a lining, said heat exchanger comprising a stack of heat transfer plates each positioned in parallel to the frame plate, said lining comprising a tubular part with a first end formed with a first flange, wherein a second flange is positioned at a distance to a second end, thus dividing the tubular part into a middle section and an outer section, where the middle section is formed between the first flange and second flange, wherein the second flange and outer section together forms a platform to accommodate a sealing element to be positioned between the second flange and the neighbouring heat transfer plate in the stack of heat transfer plates to the frame plate, wherein the sealing element has a thickness that is larger than a depth of a recess, and wherein the heat transfer plate directly contacts and squeezes the sealing element.

2. The heat exchanger according to claim 1 , wherein the lining is adapted to be positioned in connection to the frame plate, such that an inner surface of the frame plate is formed with the recess encircling and bordering an opening, where the first flange is positioned with an inner surface of the first flange forming a first flange contact section to an outer surface of the frame plate, and where the recess is adapted to accommodate the second flange, such that an inner surface of the second flange forms a contact to a surface of the recess.

3. The heat exchanger according to claim 2 , where the sealing element is adapted to be positioned on the second flange being confined between an edge of the recess and the outer section, and between the second flange and the neighbouring heat transfer plate in the stack of heat transfer plates.

4. The heat exchanger according to claim 2 , wherein the neighbouring heat transfer plate is formed with a projection forming the contact to the sealing element.

5. The heat exchanger according to claim 4 , where the projection only contacts part of the surface of the sealing element that faces the neighbouring heat transfer plate.

6. The heat exchanger according to claim 1 , where the tubular part is formed of two individual sections, one including the second flange and one including the first flange, and where these are adapted to be introduced into the frame plate opening from each side of the frame plate.

7. The heat exchanger according to claim 6 , where said two sections of the tubular part is adapted to overlap when positioned within the frame plate opening being connected simply by pressing against each other and an inner frame plate opening wall.

8. The heat exchanger according to claim 2 , where the tubular part is formed of two individual sections, one including the second flange and one including the first flange, and where these are adapted to be introduced into the frame plate opening from each side of the frame plate.

9. The heat exchanger according to claim 3 , where the tubular part is formed of two individual sections, one including the second flange and one including the first flange, and where these are adapted to be introduced into the frame plate opening from each side of the frame plate.

10. The heat exchanger according to claim 4 , where the tubular part is formed of two individual sections, one including the second flange and one including the first flange, and where these are adapted to be introduced into the frame plate opening from each side of the frame plate.

Assignees

• Danfoss As

Inventors

• Nielsen Helge

Classifications

• F28F3/083 Primary

  capable of being taken apart · CPC title

• F28D9/005 Primary

  the plates having openings therein for both heat-exchange media · CPC title

• F28F3/10

  Arrangements for sealing the margins · CPC title

• F28F2280/04

  Means for preventing wrong assembling of parts · CPC title

• F28D9/0037 Primary

  the conduits for the other heat-exchange medium also being formed by paired plates touching each other (F28D9/0043 takes precedence) · CPC title