HEAT EXCHANGER AND PRODUCTION METHOD FOR HEAT EXCHANGER

• US 20160290733A1
• Filed: 12/03/2014
• Published: 10/06/2016
• Est. Priority Date: 12/05/2013
• Status: Active Grant

• Current Assignee: Klaus Schmidt
• Original Assignee: Klaus Schmidt
• Inventors: KUBO, Yohei, YAMADA, Sayaka, NOISHIKI, Koji
• Granted Patent: US 10,215,497 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: F28D 9/0037 the conduits for the other heat-exchange medium also being formed by paired plates touching each other F28D9/0043 takes precedence
• CPC Class Codes: F28D 9/0062 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 Class Codes: F28D 9/0068 with means for changing flow direction of one heat exchange medium, e.g. using deflecting zones
• CPC Class Codes: F28D 9/0075 the plates having openings therein for circulation of the heat-exchange medium from one conduit to another
• CPC Class Codes: F28F 13/06 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 Class Codes: F28F 13/12 by creating turbulence, e.g. by stirring, by increasing the force of circulation F28F13/08 takes precedence
• CPC Class Codes: F28F 3/08 Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning
• CPC Class Codes: F28F 3/086 having one or more openings therein forming tubular heat-exchange passages
• CPC Class Codes: F28F 9/0204 for elongated header box, e.g. with transversal and longitudinal partitions
• CPC Class Codes: F28F 9/0214 having only longitudinal partitions

Abstract

A heat exchanger including a stacking block, including: a first plate surface; a second plate surface opposite to the first plate surface; and first and second flow path plates including respective plural first and second through holes that have a standard shape. The first through holes are arranged to line up in a standard array pattern in a first direction in which a first flow path causes a first fluid to flow. The second through holes are arranged in the first direction in the same standard array pattern as the first through holes. Each of the first through holes have an area with a same overlap with the second through holes positioned on both sides of the first through holes, in the first direction. The first flow path is formed by the first and second through holes being mutually joined in the first direction, in the areas of overlap.

Claims

1. :

A heat exchanger that allows at least a first fluid and a second fluid to exchange heat therebetween while allowing those fluids to circulate,

the heat exchanger comprising a stacking block having therein a first flow path that allows the first fluid to circulate and a second flow path that allows the second fluid to circulate,

wherein the stacking block has;

a first plate surface being a plate surface on one side;

a second plate surface being a plate surface on the opposite side to the first plate surface;

a first flow path plate formed with a plurality of first through holes having a constant shape;

a second flow path plate formed with a plurality of second through holes having the same constant shape as the first through holes;

a first seal plate stacked on the second plate surface; and

a second seal plate stacked on a plate surface of the second flow path plate on the opposite side to the first flow path plate,

wherein in the first flow path plate, the first through holes are arranged so as to line up in a constant arrangement pattern in a first direction in which the first flow path allows the first fluid to flow,

wherein in the second flow path plate, the second through holes are arranged so as to line up in the first direction in the same constant arrangement pattern as the first through holes, and

wherein each of the first through holes has regions overlapping with the second through holes located on both sides of the first through hole in the first direction, and the first flow path is formed by the first through holes and the second through holes being alternately connected in the first direction in the regions where those through holes overlap.

2. :

The heat exchanger according to claim 1,

wherein the respective first through holes and the respective second through holes are circular through holes.

3. :

The heat exchanger according to claim 1,

wherein viewed from the stacking direction of the first flow path plate and the second flow path plate, the respective first through holes and the respective second through holes connected to the first through holes overlap with a deviation to each other the direction orthogonal to the first direction.

4. :

The heat exchanger according to claim 3,

wherein the plurality of first through holes formed in the first flow path plate line up along a plurality of first lines extending in the first direction,

wherein the plurality of second through holes formed in the second flow path plate line up along a plurality of second lines extending in the first direction and corresponding to the plurality of first lines,

wherein the first through holes of each of the first lines and the second through holes of the corresponding second line overlap with a deviation to each other n both the first direction and the direction orthogonal to the first direction, and

wherein the first through holes of each of the first lilies overlap with the second through holes of the adjacent second line in the direction orthogonal to the first direction with a deviation to each other.

5. :

The heat exchanger according to claim 1,

wherein each of the first through holes consists of a first through hole one end part formed in the first plate surface, a first through hole other end part formed in the second plate surface, and a first through hole intermediate part which is a portion between the first through hole one end part and the first through hole other end part of the first through hole,

wherein the first through hole other end part has a diameter smaller than the diameter of the first through hole one end part,

wherein the first through hole intermediate part is formed so that the diameter thereof is not less than the diameter of the first through hole other end part and not more than the diameter of the first through hole one end part,

wherein each of the second through holes consists of a second through hole one end part formed in a plate surface of the second flow path plate on the first flow path plate side, a second through hole other end part formed in a plate surface of the second flow path plate on the second seal plate side, and a second through hole intermediate part which is a portion between the second through hole one end part and the second through hole other end part of the second through hole,

wherein the second through hole other end part has a diameter smaller than the diameter of the second through hole one end part, and

wherein the second through hole intermediate part is formed so that the diameter thereof is not less than the diameter of the second through hole other end part and not more than the diameter of the second through hole one end part.

6. :

The heat exchanger according to claim 1,

wherein the inner peripheral surface of the first flow path plate surrounding each of the first through holes has a first tapered surface part formed in a tapered shape toward the inside of the first through hole as it approaches to the first seal plate side from the first plate surface of the first flow path plate, and

wherein the inner peripheral surface of the second flow path plate surrounding each of the second through holes has a second tapered surface part formed in a tapered shape toward the inside of the second through hole as it approaches to the second seal plate side from the plate surface of the second flow path plate on the first flow path plate side.

7. :

The heat exchanger according to claim 1,

wherein the stacking block has a third flow path plate which is stacked on a plate surface of the second seal plate on the opposite side to the second flow path plate and in which a plurality of third through holes having a constant shape are formed, a fourth flow path plate which is stacked on a plate surface of the third flow path plate on the opposite side to the second seal plate and in which a plurality of fourth through holes having the same constant shape as the third through holes are formed, and a third seal plate stacked on a plate surface of the fourth flow path plate on the opposite side to the third flow path plate,

wherein in the third flow path plate, the third through holes are arranged so as to line up in a constant arrangement pattern in a second direction in which the second flow path allows the second fluid to flow,

wherein in the fourth flow path plate, the fourth through holes are arranged so as to line up in the same constant arrangement pattern as the third through holes in the second direction, and

wherein each of the third through holes has regions overlapping with the fourth through holes located on both sides of the third through hole in the second direction, and the second flow path is formed by the third through holes and the fourth through holes being alternately connected in the second direction in the regions where those through holes overlap.

8. :

The heat exchanger according to claim 7,

wherein the respective third through holes and the respective fourth through holes are circular through holes.

9. :

The heat exchanger according to claim 7,

wherein viewed from the stacking direction of the third flow path plate and the fourth flow path plate, the respective third through holes and the respective fourth through holes connected to the third through holes overlap with a deviation to each other in the direction orthogonal to the second direction.

10. :

The heat exchanger according to claim 9,

wherein the plurality of third through holes formed in the third flow path plate line up along a plurality of third lines extending in the second direction,

wherein the plurality of fourth through holes formed in the fourth flow path plate line up along a plurality of fourth lines extending in the second direction and corresponding to the plurality of third lines,

wherein the third through holes of each of the third lines and the fourth through holes of the corresponding fourth line overlap with a deviation to each other in both the second direction and the direction orthogonal to the second direction, and

wherein the third through holes of each of the third lines overlap with the fourth through holes of the adjacent fourth line in the direction orthogonal to the second direction with a deviation to each other.

11. :

The heat exchanger according to claim 7,

wherein each of the third through holes consists of a third through hole one end part formed in a plate surface of the third flow path plate on the opposite side to the second seal plate, a third through hole other end part formed in a plate surface of the third flow path plate on the second seal plate side, and a third through hole intermediate part which is a portion between the third through hole one end part and the third through hole other end part of the third through hole,

wherein the third through hole other end part has a diameter smaller than the diameter of the third through hole one end part,

wherein the third through hole intermediate part is formed so that the diameter thereof is not less than the diameter of the third through hole other end part and not more than the diameter of the third through hole one end part,

wherein each of the fourth through holes consists of a fourth through hole one end part formed in a plate surface of the fourth flow path plate on the third flow path plate side, a fourth through hole other end part formed in a plate surface of the fourth flow path plate on the third seal plate side, and a fourth through hole intermediate part which is a portion between the fourth through hole one end part and the fourth through hole other end part of the fourth through hole,

wherein the fourth through hole other end part has a diameter smaller than the diameter of the fourth through hole one end part, and

wherein the fourth through hole intermediate part is formed so that the diameter thereof is not less than the diameter of the fourth through hole other end part and not more than the diameter of the fourth through hole one end part.

12. :

The heat exchanger according to claim 7,

wherein the inner peripheral surface of the third flow path plate surrounding each of the third through holes has a third tapered surface part formed in a tapered shape toward the inside of the third through hole as it approaches to the second seal plate side from the plate surface of the third flow path plate on the opposite side to the second seal plate, and

wherein the inner peripheral surface of the fourth flow path plate surrounding each of the fourth through holes has a fourth tapered surface part formed in a tapered shape toward the inside of the fourth through hole as it approaches to the third seal plate side from the plate surface of the fourth flow path plate on the third flow path plate side.

13. :

The heat exchanger according to claim 7,

wherein within the stacking block, a plurality of the second flow paths through which the second fluid flows in turn are arranged in parallel in the direction orthogonal to the second direction, and

wherein on both side surfaces of the stacking block in the second direction, the corresponding respective end parts of the respective second flow paths are formed respectively so as to be opened, and circulation headers that communicate the end part corresponding to an outlet of the second flow path on the upstream side and the end part corresponding to an inlet of the second flow path on the downstream side and direct the second fluid discharged from the outlet of the second flow path on the upstream side to the inlet of the second flow path on the downstream side are attached respectively.

14. :

A method for producing a heat exchanger that allows at least a first fluid and a second fluid to exchange heat therebetween while allowing those fluids to circulate, the method being provided with a stacking block forming step for forming a stacking block having therein a first flow path that allows the first fluid to circulate and a second flow path that allows the second fluid to circulate,

wherein the stacking block forming step includes a first flow path forming step for forming the first flow path in the stacking block, and a second flow path forming step for forming the second flow path in the stacking block,

wherein the first flow path forming step has;

a first through hole forming step for forming a plurality of first through holes having a constant shape in a first flow path plate so as to line up in a constant arrangement pattern in a first direction in which the first flow path allows the first fluid to flow;

a second through hole forming step for forming a plurality of second through holes having the same constant shape as the first through holes in a second flow path plate so as to line up in the same constant arrangement pattern as the arrangement pattern of the first through holes; and

a first stacking step for stacking the second flow path plate to the first flow path plate, and for stacking a first seal plate to a plate surface of the first flow path plate on the opposite side to the second flow path plate so as to seal the openings of the plurality of first through holes formed in the plate surface, and stacking a second seal plate to a plate surface of the second flow path plate on the opposite side to the first flow path plate so as to seal the openings of the plurality of second through holes formed in the plate surface, and

wherein in the first stacking step, the second flow path plate is stacked to the first flow path plate so that each of the first through holes partially overlaps with the second through holes located on both sides of the first through holes in the first direction, and the first flow path is formed by the first through holes and the second through holes being alternately connected in the first direction in the regions where those through holes overlap.

15. :

The production method of the heat exchanger according to claim 14,

wherein at the first through hole forming step, the respective first through holes are formed in the first flow path plate by a punching process with blanking pins, and

wherein at the second through hole forming step, the respective second through holes are formed in the second flow path plate by a punching process with blanking pins.

16. :

The production method of the heat exchanger according to claim 14,

wherein the second flow path forming step has;

a third through hole forming step for for wing a plurality of third through holes having a constant shape in a third flow path plate so as to line up in a constant arrangement pattern in a second direction in which the second flow path allows the second fluid to flow;

a fourth through hole forming step for forming a plurality of fourth through holes having the same constant shape as the third through holes in a fourth flow path plate so as to line up in the same constant arrangement pattern as the arrangement pattern of the third through holes; and

a second stacking step for stacking the fourth flow path plate to the third flow path plate, and for stacking the third flow path plate to the second seal plate so as to seal the openings of the plurality of third through holes formed in the plate surface of the third flow path plate on the opposite side to the fourth flow path plate by the plate surface of the second seal plate on the opposite side to the second flow path plate, and stacking a third seal plate to a plate surface of the fourth flow path plate on the opposite side to the third flow path plate so as to seal the openings of the plurality of fourth through holes formed in the plate surface, and

wherein in the second stacking step, the third flow path plate is stacked to the third flow path plate 50 that each of the third through holes partially overlaps with the fourth through holes located on both sides of the third through holes in the second direction, and the second flow path is formed by the third through holes and the fourth through holes being alternately connected in the second direction in the regions where those through holes overlap.

17. :

The production method of the heat exchanger according to claim 16,

wherein at the third through hole forming step, the respective third through holes are formed in the third flow path plate by a punching process with blanking pins, and

wherein at the fourth through hole forming step, the respective fourth through holes are formed in the fourth flow path plate by a punching process with blanking pins.