Plate type heat exchanger

Patent metadata

Field	Value
Publication number	US-11353268-B2
Application number	US-202016927028-A
Country	US
Kind code	B2
Filing date	Jul 13, 2020
Priority date	Jul 29, 2019
Publication date	Jun 7, 2022
Grant date	Jun 7, 2022

Abstract

A plate type heat exchanger includes a plate package in which a plurality of heat exchange plates is stacked to form a flow path, through which fluid flows, an end plate coupled to an outside of the plate package, and a socket connected to the plate package by passing through the end plate. The end plate includes a base which is in contact with the outside of the plate package, a socket hole which is formed through the base and into which the socket is inserted, and a ridge that protrudes outward from an edge of the socket hole of the base.

First claim

What is claimed is:

1. A plate type heat exchanger, comprising:
a plate package in which a plurality of heat exchange plates is stacked to form a flow path, through which fluid flows;
an end plate coupled to an outside of the plate package; and
a socket connected to the plate package by passing through the end plate, wherein the end plate includes:
a base which is in contact with the outside of the plate package;
a socket hole which is formed through the base and into which the socket is inserted; and
a ridge that protrudes outward from an edge of the socket hole of the base, wherein the socket includes:
a socket body formed in a pipe shape;
a socket flange that extends from an end portion of the socket body in a radial direction of the socket body to have a diameter larger than a diameter of the socket body and is in contact with the ridge; and
a sealing portion that extends from an end portion of the socket flange in an axial direction of the socket body to have a diameter smaller than the diameter of the socket body and is inserted into the socket hole, wherein the base includes a depression space between the ridge and the plate package, and wherein the sealing portion is bent outward in the radial direction and is disposed in the depression space.

2. The plate type heat exchanger of claim 1 , wherein a portion of the sealing portion is in contact with an inner surface of the depression space of the ridge.

3. The plate type heat exchanger of claim 1 , wherein the socket is fixed in a sealing manner inside of the ridge.

4. The plate type heat exchanger of claim 1 , wherein the sealing portion is bent in a direction perpendicular to a central axis of the socket to be in close contact with an inner surface of the ridge.

5. The plate type heat exchanger of claim 4 , wherein, in a state in which the sealing portion is in close contact with the inner surface of the ridge, the end portion of the sealing portion and the inner surface of the base are located on a same plane perpendicular to the central axis of the socket.

6. The plate type heat exchanger of claim 1 , wherein a depression depth of the depression space is formed to be the same as a thickness of the sealing portion.

7. The plate type heat exchanger of claim 1 , wherein a heat exchange plate of the plurality of heat exchange plates that is disposed at an outermost side of the plurality of heat exchange plates and the sealing portion are in contact with each other.

8. The plate type heat exchanger of claim 1 , wherein the plurality of heat exchange plates includes:
a first plate formed at a position corresponding to the socket and having a first port communicating with the socket hole; and
a second plate formed at a position corresponding to the socket and having a second port communicating with the first port.

9. The plate type heat exchanger of claim 1 , wherein a first flow path through which a first fluid flows and a second flow path through which a second fluid flows are formed inside of the plate package, and wherein either the first fluid or the second fluid flows inside of the socket.

10. The plate type heat exchanger of claim 9 , wherein the socket includes at least one of:
a first inlet through which the first fluid flows into the plate package;
a first outlet through which the first fluid is discharged from the plate package;
a second inlet through which the second fluid flows into the plate package; and
a second outlet through which the second fluid is discharged from the plate package.

11. A plate type heat exchanger, comprising:
a plate package in which a plurality of heat exchange plates is stacked to form a flow path, through which fluid flows;
an end plate coupled to an outside of the plate package; and
a socket connected to the plate package by passing through the end plate, wherein the end plate includes:
a base which is in contact with the outside of the plate package;
a socket hole which is formed through the base and into which the socket is inserted; and
a ridge that protrudes outward from an edge of the socket hole of the base, wherein the socket includes:
a socket body formed in a pipe shape;
a socket flange that extends from an end portion of the socket body in a radial direction of the socket body to have a diameter larger than a diameter of the socket body and is in contact with the ridge; and
a sealing portion that extends from an end portion of the socket flange in an axial direction of the socket body to have a diameter smaller than the diameter of the socket body and is inserted into the socket hole, wherein the base includes a depression space between the ridge and the plate package, wherein the sealing portion is bent outward in the radial direction and extends into the depression space, and wherein a lower surface of the socket flange contacts an upper surface of the ridge and an upper surface of the sealing portion contacts a lower surface of the ridge.

12. The plate type heat exchanger of claim 11 , wherein a depression depth of the depression space is the same as a thickness of the sealing portion.

13. The plate type heat exchanger of claim 11 , wherein a heat exchange plate of the plurality of heat exchange plates disposed at an outermost side of the plurality of heat exchange plates and the sealing portion are in contact with each other.

14. The plate type heat exchanger of claim 11 , wherein the plurality of heat exchange plates includes:
a first plate formed at a position corresponding to the socket and having a first port communicating with the socket hole; and
a second plate formed at a position corresponding to the socket and having a second port communicating with the first port.

15. The plate type heat exchanger of claim 11 , wherein a first flow path through which a first fluid flows and a second flow path through which a second fluid flows are formed inside of the plate package, and wherein either the first fluid or the second fluid flows inside of the socket.

16. A plate type heat exchanger, comprising:
a plate package in which a plurality of heat exchange plates is stacked to form a flow path, through which fluid flows;
an end plate coupled to an outside of the plate package; and
a socket connected to the plate package by passing through the end plate, wherein the end plate includes:
a base which is in contact with the outside of the plate package;
a socket hole which is formed through the base and into which the socket is inserted; and
a ridge that protrudes outward from an edge of the socket hole of the base, wherein the socket includes:
a socket body formed in a pipe shape;
a socket flange that extends from an end portion of the socket body in a radial direction of the socket body to have a diameter larger than a diameter of the socket body and is in contact with the ridge; and
a sealing portion that extends from an end portion of the socket flange in an axial direction of the socket body to have a diameter smaller than the diameter of the socket body and is inserted into the socket hole, wherein the base includes a depression space between the ridge and the plate package, wherein an end of the sealing portion is bent outward in the radial direction and extends into the depression space, and wherein the ridge is disposed between the socket flange and the end of the sealing portion.

17. The plate type heat exchanger of claim 16 , wherein a depression depth of the depression space is the same as a thickness of the sealing portion.

18. The plate type heat exchanger of claim 16 , wherein a heat exchan

Assignees

• Lg Electronics Inc

Inventors

• Choi Jiwon
• Lee Eungyul
• Lee Hanchoon

Classifications

• F28F2275/045

  with particular processing steps, e.g. by allowing displacement of parts during brazing or by using a reservoir for storing brazing material · CPC title

• F28F3/046

  the deformations being linear, e.g. corrugations · CPC title

• F28F3/025

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

• F28F21/085

  from copper or copper alloys · CPC title

• F28D9/0062 Primary

  the conduits for one heat-exchange medium being formed by spaced plates with inserted elements (F28D9/0012, F28D9/0025, F28D9/0081, F28D9/04 take precedence) · CPC title