HEAT EXCHANGER, A FOOD HANDLER INCLUDING THE HEAT EXCHANGER, AND A MANUFACTURING METHOD OF THE HEAT EXCHANGER

• US 20120285659A1
• Filed: 09/29/2010
• Published: 11/15/2012
• Est. Priority Date: 01/14/2010
• Status: Abandoned Application

• Current Assignee: Woongjin Coway Company Limited
• Original Assignee: Woongjin Coway Company Limited
• Inventors: Sim, Sang Gu, Park, Chan Jung, Kim, Sung Jin
• Application Number:
  US13/522,298
• Publication Number:
  US 20120285659A1
• Time in Patent Office: Days
• US Class Current: 165/96
• CPC Class Codes: F28D 2021/0042 for foodstuffs
• CPC Class Codes: F28D 21/0003 the heat being recuperated from exhaust gases F28D21/0014 takes precedence
• CPC Class Codes: F28D 21/0012 the heat being recuperated from waste water or from condensates
• CPC Class Codes: F28D 7/1684 the conduits having a non-circular cross-section
• CPC Class Codes: F28F 1/405 and being formed of wires
• CPC Class Codes: F28F 2255/16 extruded
• CPC Class Codes: F28F 3/048 in the form of ribs integral with the element or local variations in thickness of the element, e.g. grooves, microchannels
• CPC Class Codes: F28F 7/02 Blocks traversed by passages for heat-exchange media F28D7/0008 takes precedence
• CPC Class Codes: Y02B 30/56 Heat recovery units
• CPC Class Codes: Y10T 29/4935 Heat exchanger or boiler making

Abstract

Provided are a heat exchanger, a food handler including the heat exchanger, and a manufacturing method of the heat exchanger. The heat exchanger comprises a main body wherein the plurality of flow channels passes through the inside of the heat exchanger in a first direction and a pair of cover members which is fastened to both ends of the main body in the first direction. The plurality of flow channels is composed of a first flow channel which functions as the path for a first flowing fluid which goes in and out through the cover members and a second flow channel which is connected to the side of the main body. Thermal exchange is performed between the first flowing fluid and the second flowing fluid in the direction wherein the first and second flowing fluids cross each other inside of the main body.

Claims

1. A heat exchanger, in which heat transfer between a plurality of flowing fluids occurs, comprising:

a body in which a plurality of flow channels are formed; and

a cover member coupled to both ends of front and rear surfaces of the body;

wherein the plurality of flow channels comprise a first flow channel serving as a passage for a first flowing fluid passing through the cover member in a first direction and a second flow channel serving as a passage for a second flowing fluid in a second direction passing through upper and lower ends of the body,

and the cover member closes the portion of the second flow channel which communicates with the front and rear surfaces of the body.

2. The heat exchanger of claim 1, wherein the

heat transfer occurs between the first flowing fluid and the second flowing fluid in the cross direction in the heat exchanger.

3. The heat exchanger of claim 2, wherein the first flow channel and the second flow channel are alternatively disposed in a body.

6. The heat exchanger of claim 2, wherein the first or second flow channel is provided with a heat exchange fin with a predetermined shape protruding from the flow channel.

7. The heat exchanger of claim 6, wherein the heat exchange fin is oppositely disposed in a staggered manner on an inner surface of either the first or second flow channel which is provided with the heat exchange fin.

11. The heat exchanger of claim 1, wherein heat transfer occurs between exhaust gas generated from a food handler and cold air supplied from an exterior flow in the heat exchanger.

4-5. -5. (canceled)

8-9. -9. (canceled)

10. A method of manufacturing a heat exchanger in which heat transfer between a plurality of flowing fluids occurs, comprising:

(a) forming a body constituting the heat exchanger through extruding process in a first direction, so that a plurality of flow channels, in which the plurality of flowing fluids flow, are formed to have a different height;

(b) cutting a lateral surface of the body in a second direction different from the first direction of the flow channel by a depth until a distal end of the flow channel having the different height is exposed outward; and

(c) attaching a cover member which closes the portion of the flow channel which communicates with the front and rear surfaces of the bodyin the first direction.

12. A food handler comprising heat exchanger manufactured by the method of claim 10.

13. A method of manufacturing a heat exchanger of claim 10, wherein the step (a) comprises:

manufacturing the plurality of flow channels into a first flow channel and a second flow channel which is formed rather longer than the first flow channel in the second direction.

14. A method of manufacturing a heat exchanger of claim 13, wherein the first flow channel and the second flow channel are alternatively disposed in the body.

15. A method of manufacturing a heat exchanger of claim 13, wherein the step (b) comprises:

exposing only the second flow channel outwardly in the second direction by cutting the lateral surface of the body.

16. A method of manufacturing a heat exchanger of claim 10, wherein the step (a) comprises:

disposing a heat exchange fin oppositely in a staggered manner on an inner surface of either the first or second flow channel.

17. A method of manufacturing a heat exchanger of claim 10, wherein the step (c) comprises:

attaching the cover member to the body so as to prevent the second flowing fluid inside the second flow channel from being discharged from the body in the first direction.