JP2019219090A - Heat exchanger - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress an increase in pressure loss of a fluid as compared with a case where a fluid flowing in one direction flows into a heat exchange path extending long in one direction from one direction and flows out from the heat exchange path in one direction. Then, a heat exchanger capable of increasing the amount of heat transfer from the fluid to the heat exchange member is obtained. SOLUTION: A plurality of heat exchange paths 32 formed of heat exchange members are arranged side by side in one direction between an inflow path 12 extending in one direction and an outflow path 22 extending in one direction. The inflow path 12 and the outflow path 22 are connected in the crossing direction. [Selection diagram] Fig. 1

Description

  The present invention relates to a heat exchanger.

  The heat exchanger described in Patent Literature 1 is formed in a flat shape, a flow pipe through which a heat medium that exchanges heat with a heat exchange object flows, and an inside of the flow pipe, and a heat exchange object is disposed. And a plate-shaped inner fin for increasing a heat transfer area between the heat transfer medium and the heat medium.

JP 2016-152302 A

  Conventionally, in a heat exchanger, a fluid (heat medium) flowing in one direction flows into a heat exchange path extending in one direction from one direction, and flows out of the heat exchange path in one direction. As described above, since the heat exchange path extends in one direction, the pressure loss of the fluid increases. On the other hand, if the flow path cross-sectional area of the heat exchange path is increased to reduce the pressure loss of the fluid, the contact area where the fluid per unit flow rate contacts the heat exchange member (inner fin) decreases. As a result, the amount of heat transfer from the fluid to the heat exchange member decreases.

  An object of the present invention is to increase a pressure loss of a fluid as compared with a case where a fluid flowing in one direction flows into a heat exchange path extending in one direction from one direction and flows out of the heat exchange path in one direction. And increasing the amount of heat transfer from the fluid to the heat exchange member.

The heat exchanger according to claim 1 of the present invention intersects with the inflow path, which extends in one direction and into which the fluid flowing in one direction flows from an end and flows in the one direction. A plurality of the inflow paths are arranged in the one direction, between the inflow path and the outflow path, which extends in the one direction while being separated from the inflow path in the cross direction and in which the fluid flowing in the one direction flows out from an end. And the outflow path in the cross direction, a heat exchange path formed by a heat exchange member for heat exchange between the heat exchange target member and the fluid, the length in the cross direction Where L is the flow path width and W1 is the heat exchanger having the heat exchange path satisfying the following expression (1), wherein the flow of the fluid flowing through the inflow path in the one direction is stopped. Having a guide member for guiding the heat to the heat exchange path.
W1 / 2 ≦ L ≦ 5W1 (1)

  According to the above configuration, the fluid flows into the inflow channel from the end of the inflow channel extending in one direction, and flows in one direction. Further, the flow of the fluid flowing in the inflow path is stopped in one direction by the guide member, the flow direction is changed, and the fluid flows (guides) through the plurality of heat exchange paths arranged in one direction. Further, heat exchange is performed between the fluid flowing in the heat exchange path and the heat exchange target component via the heat exchange member forming the heat exchange path. Further, the fluid flowing through each of the plurality of heat exchange paths changes the flow direction, flows into the outflow path extending in one direction, and flows out of the outflow path.

  As described above, a plurality of heat exchange paths are provided. Further, the fluid flowing from the inflow path to the heat exchange path changes its flow direction and flows into the heat exchange path. Further, the fluid flowing from the heat exchange path to the outflow path changes the flow direction and flows into the outflow path. Further, when the length of the heat exchange path in the cross direction is L and the flow path width of the heat exchange path is W1, the following expression (1) is satisfied.

                    W1 / 2 ≦ L ≦ 5W1 (1)

  For this reason, compared to the case where the fluid flowing in one direction flows into the heat exchange path extending in one direction from one direction and flows out from the heat exchange path in one direction, the pressure loss of the fluid is suppressed from increasing. Then, the amount of heat transfer from the fluid to the heat exchange member can be increased.

  The heat exchanger according to claim 2 of the present invention is the heat exchanger according to claim 1, wherein the fluid that flows in one direction is suppressed from flowing into the outflow path from an end of the outflow path. It is characterized by having.

  According to the above configuration, the suppression member suppresses the fluid flowing in one direction from flowing into the outflow channel from the end of the outflow channel. That is, the fluid that blocks the fluid flowing from the heat exchange path to the outflow path is suppressed from flowing into the outflow path. Therefore, the flow rate of the fluid passing through the heat exchange path can be increased as compared with the case where the fluid flowing in one direction flows into the outflow path from the end of the outflow path.

  In the heat exchanger according to claim 3 of the present invention, in the heat exchanger according to claim 1 or 2, the heat exchange path and the outflow path are respectively formed on both sides of the inflow path. It is characterized.

  According to the above configuration, the heat exchange path and the outflow path are respectively formed on both sides of the inflow path. Therefore, the amount of heat transferred from the fluid to the heat exchange member can be increased as compared with the case where the heat exchange path and the outflow path are formed only on one side of the inflow path.

  The heat exchanger according to claim 4 of the present invention is the heat exchanger according to any one of claims 1 to 3, wherein a plurality of the inflow paths are formed, a plurality of the outflow paths are formed, and the inflow path is provided. And the outflow channel are alternately arranged.

  According to the above configuration, a plurality of inflow paths are formed, and a plurality of outflow paths are formed, and the inflow paths and the outflow paths are alternately arranged. For this reason, the amount of heat transfer from the fluid to the heat exchange member can be increased as compared with the case where at least one of the outflow path and the outflow path is one.

  The heat exchanger according to claim 5 of the present invention is the heat exchanger according to any one of claims 1 to 4, wherein a flow passage width of a portion of the inflow passage facing the heat exchange passage is: It is characterized in that it becomes narrower from the upstream side to the downstream side in the flow direction in which the fluid flows.

  According to the above configuration, the flow path width of the portion where the heat exchange path faces the inflow path decreases from the upstream side to the downstream side in the flow direction of the fluid. For this reason, the difference between the flow rate of the fluid flowing from the inflow path to one heat exchange path and the flow rate to the other heat exchange path is reduced as compared with the case where the flow path width of the inflow path is constant. be able to.

  The heat exchanger according to claim 6 of the present invention is the heat exchanger according to any one of claims 1 to 5, wherein a flow path width of a portion of the outflow path facing the heat exchange path is: It is characterized in that the fluid becomes wider from the upstream side to the downstream side in the flow direction in which the fluid flows.

  According to the above configuration, the flow path width of the portion where the heat exchange path faces the outflow path increases from the upstream side to the downstream side in the flow direction of the fluid. For this reason, compared with the case where the flow path width of the outflow path is constant, the flow rate of the fluid flowing from one heat exchange path to the outflow path and the flow rate of the fluid flowing from another heat exchange path to the outflow path are different. The difference can be reduced.

  The heat exchanger according to claim 7 of the present invention is the heat exchanger according to any one of claims 1 to 6, wherein the inflow path, the outflow path, and the heat exchange path are two parallel sheets. Characterized by being formed between the flat surfaces.

  According to the above configuration, the inflow path, the outflow path, and the heat exchange path are formed between two parallel planes. For this reason, the inflow path, the outflow path, and the heat exchange path can be formed with a simple configuration as compared with the case where the inflow path, the outflow path, and the heat exchange path are formed using the pipe material.

  ADVANTAGE OF THE INVENTION According to this invention, the pressure loss of a fluid becomes high compared with the case where the fluid which flows in one direction flows into the heat exchange path extended in one direction from one direction, and flows out from the heat exchange path in one direction. And the amount of heat transfer from the fluid to the heat exchange member can be increased.

It is a top view showing the heat exchanger concerning a 1st embodiment of the present invention. (A) (B) (C) It is sectional drawing which showed the heat exchanger which concerns on 1st Embodiment of this invention. FIG. 4 is an explanatory diagram used to explain characteristics of the heat exchanger according to the first embodiment of the present invention. (A) (B) It is the top view and sectional drawing which showed the heat exchanger which concerns on the comparative form of this invention. It is a top view showing the heat exchanger concerning a 2nd embodiment of the present invention. It is a top view showing the heat exchanger concerning a 3rd embodiment of the present invention. It is a top view showing the heat exchanger concerning a 4th embodiment of the present invention. It is an enlarged plan view showing a heat exchanger concerning a fourth embodiment of the present invention. It is a top view showing the heat exchanger concerning a modification to an embodiment of the present invention.

<First embodiment>
An example of the heat exchanger according to the first embodiment of the present invention will be described with reference to FIGS. In addition, the arrow H shown in the figure shows the vertical direction (vertical direction) of the apparatus, the arrow W shows the width direction (horizontal direction) of the apparatus, and the arrow D shows the depth direction (horizontal direction) of the apparatus. .

(overall structure)
The heat exchanger 10 according to the first embodiment is, for example, an apparatus for exchanging heat between a water supply G1 as a fluid (heat medium) and an electronic component E which is a heat exchange target member (cooling target member). It is. Specifically, it is a device that cools the electronic component E using the feedwater G1 as a fluid.

  As shown in FIG. 1, the heat exchanger 10 has an inflow path 12 through which feed water G1 flowing into the heat exchanger 10 flows, and an outflow path 22 through which drainage G2 after heat exchange has finished. Further, the heat exchanger 10 has a plurality of heat exchange paths 32 formed by heat exchange fins 34 and 36 for exchanging heat between the electronic component E (see FIG. 2B) and the water supply G1. ing. The heat exchange fins 34 and 36 are plate-like members formed by laminating metal plates having high thermal conductivity such as aluminum and copper and joining these plates. That is, the heat exchange fins 34 and 36 are, for example, a metal or a metal laminate having a thermal conductivity of 70 [W / m · K] or more. The heat exchange fins 34 and 36 are examples of a heat exchange member.

  As shown in FIGS. 2A, 2B, and 2C, the inflow path 12, the outflow path 22, and the heat exchange path 32 are separated from each other in the vertical direction of the apparatus and are two parallel flat surfaces 40A and 42A. Is formed between. Specifically, the heat exchanger 10 includes two plate members 40 and 42 that are separated from each other in the vertical direction of the device and are formed using a metal material. The inflow path 12, the outflow path 22, and the heat exchange path 32 side of the plate 40 are a plane 40A, and the inflow path 12, the outflow path 22, and the heat exchange path 32 of the plate 42 are a plane 42A.

  Further, as shown in FIG. 2B, the electronic component E is in contact with a plane 42B opposite to the plane 42A in the plate 42 on the opposite side of the heat exchange path 32 across the plate 42. .

  In the present embodiment, the distance between the planes (H1 in the figure) is longer than the flow path width W1 of the heat exchange path 32 (details will be described later).

[Inflow channel 12]
The inflow path 12 extends in the apparatus depth direction as shown in FIGS. Furthermore, the shape of the inflow channel 12 cut in a direction orthogonal to the longitudinal direction is a rectangular shape, and has a similar shape in the device depth direction. The apparatus depth direction is an example of one direction.

  The inflow passage 12 includes a side plate 14A on one side (left side in the drawing) of the inflow passage 12 in the device width direction, a side plate 14B on the other side (right side in the drawing) of the inflow passage 12 in the device width direction, and an inflow passage 12. And the bottom plate 16 on the back side in the device depth direction. Further, the side plates 14A and 14B and the bottom plate 16 are formed using a metal material. The bottom plate 16 is an example of a guide member.

  One end of the heat exchange passage 32 faces the other side of the inflow passage 12 in the device width direction. Specifically, on the other side in the apparatus width direction in the inflow path 12, the side plates 14B and the heat exchange paths 32 are arranged in this order from the near side to the far side in the apparatus depth direction. In the present embodiment, the length of the side plate 14B in the device depth direction and the flow path width of the inflow path 12 (B1 in FIG. 2A) are the flow path width W1 of the heat exchange path 32 (details will be described later). Is within ± 30%.

  In this configuration, the water supply G1 flows in the inflow path 12 from the end on the near side in the apparatus depth direction, and flows through the inflow path 12 from the near side in the apparatus depth direction to the back side.

[Outflow channel 22]
As shown in FIGS. 1 and 2C, the outflow channel 22 is separated from the inflow channel 12 in the device width direction and extends in the device depth direction. Furthermore, the shape of the outflow channel cut in a direction perpendicular to the longitudinal direction is rectangular, and has the same shape in the device depth direction.

  The outflow channel 22 includes a side plate 24A on the other side of the outflow channel 22 in the device width direction (the opposite side to the inflow channel 12) and a side plate 24B on one side of the outflow channel 22 in the device width direction (the inflow channel 12 side). And a bottom plate 26 on the near side of the outflow channel 22 in the apparatus depth direction. Further, the side plates 24A and 24B and the bottom plate 26 are formed using a metal material. The bottom plate 26 is an example of a suppressing member.

  The other end of the heat exchange path 32 faces one side of the outflow path 22 in the apparatus width direction. Specifically, on one side of the outflow channel 22 in the device width direction, the side plate 24B and the heat exchange channel 32 are arranged in this order from the depth side to the front side in the device depth direction. In the present embodiment, the length of the side plate 24B in the apparatus depth direction and the flow path width of the outflow path 22 (B2 in FIG. 2C) are the flow path width W1 of the heat exchange path 32 (details will be described later). It has the same dimensions as.

  In this configuration, the drainage G <b> 2 flows from the near side in the apparatus depth direction to the back side in the outflow path 22, and flows out of the outflow path 22 from an end on the back side in the apparatus depth direction. Further, the bottom plate 26 suppresses the fluid flowing in the device depth direction from flowing into the outflow channel 22 from the end of the outflow channel 22.

[Heat exchange path 32]
As shown in FIGS. 1 and 2B, three heat exchange paths 32 are arranged side by side in the apparatus depth direction, and connect the inflow path 12 and the outflow path 22 in the apparatus width direction. The device width direction is an example of the cross direction.

  Further, the shape of the heat exchange path 32 cut in a direction perpendicular to the longitudinal direction is rectangular, and has the same shape in the apparatus width direction. One end of the heat exchange path 32 faces the inflow path 12, and the other end of the heat exchange path 32 faces the outflow path 22.

  The heat exchange path 32 is formed by heat exchange fins 34 and 36 on both sides of the heat exchange path 32 in the apparatus depth direction. Two heat exchange fins 34 are arranged to partition adjacent heat exchange paths 32. Further, two heat exchange fins 36 are arranged so as to sandwich the two heat exchange fins 34 from the apparatus depth direction. In the following description, for convenience, the three heat exchange paths 32 may be referred to as a heat exchange path 32A, a heat exchange path 32B, and a heat exchange path 32C in order from the near side in the apparatus depth direction.

  In the present embodiment, the thickness of the heat exchange fins 36 is, for example, not less than 2 [mm] and not more than 4 [mm], and the thickness of the heat exchange fins 34 is 2 mm of the thickness of the heat exchange fins 36. It is doubled. In addition, the flow path width (W1 in FIG. 2B) of the heat exchange path 32 is not less than 4 [mm] and not more than 8 [mm].

  Further, the length (L in FIG. 1) of the heat exchange path 32 and the flow path width W1 of the heat exchange path 32 satisfy the following expression (1).

                            W1 / 2 ≦ L ≦ 5W1 (1)

  The length L of the heat exchange path 32 is determined by the intersection of the center line of the heat exchange path 32 and a line connecting one end of the heat exchange fins 34 and 36 forming the heat exchange path 32. Of the heat exchange fins 34, 36 forming the heat exchange path 32 and the line connecting the other ends of the heat exchange fins 34, 36.

(Action)
Next, the operation of the heat exchanger 10 will be described in comparison with the heat exchanger 500 according to the comparative embodiment. First, the configuration of the heat exchanger 500 according to the comparative embodiment will be described.

[Configuration of heat exchanger 500]
As shown in FIG. 4A, the heat exchanger 500 includes a heat exchange path 532 extending in the apparatus depth direction. As shown in FIG. 4B, the heat exchange path 532 is formed between two parallel flat surfaces 40A and 42A that are separated in the vertical direction of the apparatus. The heat exchange path 532 includes heat exchange fins 534 on both sides of the heat exchange path 532 in the device width direction.

  The heat exchange fins 534 are plate-like members formed by laminating metal plates having high thermal conductivity such as aluminum or copper and joining these plates. Is the same as the thickness of the heat exchange fins 36 of the heat exchanger 10. Further, the flow path width of the heat exchange path 532 (B4 in FIG. 4B) is the same as the flow path width W1 of the heat exchange path 32 in the heat exchanger 10 (see FIG. 2B). Further, the length (L10 in FIG. 4) of the heat exchange path 532 is set to be three times the length L (see FIG. 1) of the heat exchange path 32 in the heat exchanger 10.

  That is, the length L10 of the heat exchange path 532 is the same as the sum of the lengths L of the three heat exchange paths 32, and the flow volume of the heat exchange path 532 of the heat exchanger 500 is It is the same as the sum of the flow path volumes in the ten heat exchange paths 32. The contact area between the feed water G1 flowing through the heat exchange path 532 of the heat exchanger 500 and the heat exchange fins 534 is the contact area between the feed water G1 flowing through the heat exchange path 32 of the heat exchanger 10 and the heat exchange fins 34 and 36. Is the same as the sum of

  The electronic component E is disposed on the opposite side of the heat exchange path 532 across the plate 42 so as to be in contact with the plane 42B of the plate 42 opposite to the plane 42A.

[Operation of heat exchanger 500]
The water supply G1 flows into the heat exchange path 532 from the end of the heat exchange path 532 shown in FIG. In the present embodiment, as an example, the feedwater G1 at 25 ° C. flows into the heat exchange path 532 at a space velocity of 300 [h ⁻¹ ].

  The feed water G1 that has flowed into the heat exchange path 532 flows through the heat exchange path 532 to the depth side in the apparatus depth direction (arrow K1 in the figure). Further, heat exchange is performed between the water supply G1 flowing through the heat exchange path 532 and the electronic component E via the plate member 42 and the heat exchange fins 534. Thereby, the electronic component E is cooled. In addition, the drainage G2 after the completion of the heat exchange flows out from the end of the heat exchange path 532 on the far side in the apparatus depth direction.

[Operation of heat exchanger 10]
The water supply G1 flows into the inflow path 12 from the front end in the apparatus depth direction in the inflow path 12 shown in FIG. In the present embodiment, as an example, the feedwater G1 at 25 [° C.] flows into the inflow path 12 at a space velocity of 300 [h ⁻¹ ]. The feedwater G1 that has flowed into the inflow path 12 flows through the inflow path 12 to the depth side in the apparatus depth direction (arrow M1 in the figure).

  A part of the feed water G1 flowing through the inflow path 12 flows into the heat exchange path 32A by changing the flow direction to the apparatus width direction (arrow M2 in the figure). The feedwater G1 that has flowed into the heat exchange path 32A flows through the heat exchange path 32A in the width direction of the device (arrow M3 in the figure). Further, heat exchange is performed between the water supply G1 flowing through the heat exchange path 32A and the electronic component E via the plate member 42 and the heat exchange fins 34 and 36.

  Further, the drainage G2 after the completion of the heat exchange flows from the heat exchange path 32A into the outflow path 22 with the flow direction changed to the apparatus depth direction (arrow M4 in the figure). The drainage G2 that has flowed into the outflow channel 22 flows through the outflow channel 22 in the depth direction of the device, and flows out of the outflow channel 22 in the depth direction of the device (arrow M5 in the figure).

  Another part of the feed water G1 flowing through the inflow path 12 changes the flow direction to the apparatus width direction and flows into the heat exchange path 32B (arrow M6 in the figure). The feedwater G1 that has flowed into the heat exchange path 32B flows through the heat exchange path 32A in the device width direction (arrow M7 in the figure). Further, heat exchange is performed between the water supply G1 flowing through the heat exchange path 32B and the electronic component E via the plate member 42 and the pair of heat exchange fins 34.

  Further, the waste water G2 after the completion of the heat exchange flows from the heat exchange path 32B into the outflow path 22 with the flow direction changed to the apparatus depth direction (arrow M8 in the figure). The drainage G2 that has flowed into the outflow channel 22 flows through the outflow channel 22 in the depth direction of the device, and flows out of the outflow channel 22 in the depth direction of the device (arrow M5 in the figure).

  Further, the remaining portion of the feedwater G1 flowing through the inflow path 12 is stopped by the bottom plate 16 from flowing in the apparatus depth direction, and is guided toward the heat exchange path 32C. Then, the feedwater G1 changes the flow direction to the apparatus width direction and flows into the heat exchange path 32C (arrow M9 in the figure). The feedwater G1 that has flowed into the heat exchange path 32C flows through the heat exchange path 32C in the device width direction (arrow M10 in the figure). Further, heat exchange is performed between the water supply G1 flowing through the heat exchange path 32C and the electronic component E (see FIG. 2B) via the plate member 42 and the heat exchange fins 34 and 36.

  Further, the waste water G2 after the completion of the heat exchange flows from the heat exchange path 32C into the outflow path 22 with the flow direction changed to the apparatus depth direction (arrow M11 in the figure). The drainage G2 that has flowed into the outflow channel 22 flows through the outflow channel 22 in the depth direction of the device, and flows out of the outflow channel 22 in the depth direction of the device (arrow M5 in the figure).

  Thereby, the flow rate of the feedwater G1 flowing through the heat exchange path 32A per unit time and the flow rate of the feedwater G1 flowing through the heat exchange path 32B per unit time flow through the heat exchange path 532 of the heat exchanger 500 per unit time. It is smaller than the flow rate of the feedwater G1. Further, the flow rate of the feedwater G1 flowing through the heat exchange path 32C per unit time is smaller than the flow rate of the feedwater G1 flowing through the heat exchange path 532 of the heat exchanger 500 per unit time.

  The length L of each of the heat exchange paths 32A, 32B, and 32C is set to 1/3 of the length L10 of the heat exchange path 532 of the heat exchanger 500. For this reason, in the heat exchanger 10, the increase in the pressure loss of the feedwater G1 flowing through the heat exchange path 32 is suppressed as compared with the heat exchanger 500.

  Here, the manner in which heat is transferred from the feed water G1 flowing through the heat exchange path 632 extending in one direction (the left-right direction in the figure) to the heat exchange fins 634 will be described with reference to FIG.

  As shown in FIG. 3, when the feedwater G1 flows into the heat exchange path 632 from one end (the left end in the figure) of the heat exchange path 632, the heat of the part of the feedwater G1 flowing on the heat exchange fin 634 side (heat having a low temperature). Is transmitted to the heat exchange fins 634. That is, the temperature of the feedwater G1 in the portion flowing on the heat exchange fin 634 side increases. Specifically, the portion of the feedwater G1 having a higher temperature increases from the upstream side to the downstream side in the flow direction of the feedwater G1.

  Therefore, a boundary layer S1 is generated between the feedwater G1-1 with the temperature kept low and the feedwater G1-2 with the temperature raised. The boundary layer S1 and the heat exchange fins 634 are separated from each other in the flow channel width direction from the upstream side to the downstream side in the flow direction of the feedwater G1, and eventually the distance between the boundary layer S1 and the heat exchange fins 634 becomes constant. (Saturates). Here, CFD (Computational Fluid Dynamics) analysis is performed, and based on the knowledge obtained from the analysis results, the distance from the inlet of the heat exchange path 632 to the position where the distance between the boundary layer S1 and the heat exchange fins 634 becomes constant. (L50 in the figure) is about five times the flow path width (W50 in the figure) of the heat exchange path 632.

  Here, in the heat exchange path 632, a region that is five times or less the length of the flow path width W50 from the inflow port is defined as a region R1, and an area that is longer than the length of five times the flow path width W50 from the inflow port in the heat exchange path 632 is defined. It is set as a region R2. Then, in region R1, as compared with region R2, the distance between supply water G1-1 and the heat exchange fins 634 with a lower temperature is shorter, and the lower heat of supply water G1 is effectively transmitted to heat exchange fins 634. (Heat is dissipated).

  In addition, from the viewpoint of ensuring a contact area where the feedwater G1 per unit flow rate contacts the heat exchange fins 634, the length of the heat exchange path 632 is half the length of the flow path width W50 from the inlet of the heat exchange path 632. It is preferable that it is above.

  As described above, the length of the heat exchange path 632 is equal to or more than half the length of the flow path width W50 and from the viewpoint of effectively transmitting the low-temperature heat of the feedwater G1 to the heat exchange fins 634. It is preferable that the length is not more than five times W50.

  Here, in the present embodiment, the length L of the heat exchange path 32 of the heat exchanger 10 satisfies the above-described expression (1). That is, the length L of the heat exchange path 32 is equal to or more than half the length of the flow path width W1 and equal to or less than five times the length of the flow path width W1.

  Further, in the heat exchanger 10, as shown in FIG. 1, the feedwater G1 flowing through the inflow path 12 changes its flow direction to the apparatus width direction and flows into the heat exchange path 32 (arrows M2, M6, M9). For this reason, in the heat exchanger 10, the position where the formation of the boundary layer S1 described above is started, as compared with the case where the feedwater G1 flows into the heat exchange path without changing the flow direction, in the flow direction of the feedwater G1. Move downstream. Thereby, in the heat exchanger 10, the amount of heat transfer from the feedwater G1 to the heat exchange fins 34, 36 is increased.

  Further, in the heat exchanger 10, as shown in FIG. 1, the wastewater G2 flowing through the heat exchange path 32 changes its flow direction to the apparatus width direction and flows into the outflow path 22 (arrows M4, M8, M11). For this reason, in the heat exchanger 10, the boundary layer S <b> 1 of the portion of the heat exchange path 32 on the downstream side in the flow direction of the wastewater G <b> 2 is compared with the case where the wastewater G <b> 2 flows out of the heat exchange path without changing the flow direction. Disturbed. Thereby, in the heat exchanger 10, the amount of heat transfer from the feedwater G1 to the heat exchange fins 34, 36 is increased.

  In the heat exchanger 10, the flow path length of the feed water G1 flowing through the heat exchange path 32A, the flow path length of the feed water G1 flowing through the heat exchange path 32B, and the flow path length of the feed water G1 flowing through the heat exchange path 32C are different. It becomes the same. Therefore, the heat is uniformly transmitted from the water supply G1 to the heat exchange fins 34 and 36 as compared with the case where the flow path lengths are different.

  In the heat exchanger 10, the inflow path 12 and the outflow path 22 extend in the apparatus depth direction. Thereby, the feedwater G1 flowing in the apparatus depth direction flows into the inflow path 12, and the wastewater G2 after the heat exchange ends flows out of the outflow path 22 in the apparatus depth direction. That is, the heat exchanger 10 causes the supply water G1 that has flowed in from the device depth direction to flow out as drainage G2 in the device depth direction.

(Summary)
As described above, in the heat exchanger 10, after suppressing the pressure loss of the feedwater G1 flowing through the heat exchange path 32 from increasing compared to the heat exchanger 500, the heat exchange fins 34, The amount of heat transfer to the heat exchanger 36 can be increased.

  Further, in the heat exchanger 10, as described above, the water supply G1 that has flowed in from the device depth direction can flow out as drainage G2 in the device depth direction. That is, in the heat exchanger 10, the flow direction of the feedwater G1 flowing into the heat exchanger 10 and the flow direction of the drainage G2 flowing out of the heat exchanger 10 can be made the same.

  Further, the bottom plate 16 stops the flow of the feedwater G1 flowing in the inflow path 12 in the apparatus depth direction, and guides the feedwater G1 to the heat exchange path 32. Thereby, the flow direction of all the feedwater G1 flowing through the inflow path 12 can be changed, and the feedwater G1 can flow into the heat exchange path 32.

  The bottom plate 26 suppresses the flow of the fluid such as the feed water G1 flowing in the depth direction of the device from flowing into the outflow channel 22 from the end of the outflow channel 22. That is, the flow of the fluid that blocks the drainage G2 flowing from the heat exchange path 32 into the outflow path 22 is suppressed from flowing into the outflow path 22. Therefore, the flow rate of the drainage G2 passing through the heat exchange path 32 can be increased as compared with the case where the fluid flowing in the apparatus depth direction flows into the outflow path from the end of the outflow path.

  The inflow channel 12, the outflow channel 22, and the heat exchange channel 32 are formed between two parallel flat surfaces 40A and 42A. For this reason, the inflow path 12, the outflow path 22, and the heat exchange path 32 can be formed with a simple configuration as compared with the case where the inflow path, the outflow path, and the heat exchange path are formed using the pipe material. .

<Second embodiment>
An example of the heat exchanger according to the second embodiment of the present invention will be described with reference to FIG. In addition, about 2nd Embodiment, the part different from 1st Embodiment is mainly demonstrated.

  As shown in FIG. 5, the heat exchanger 110 according to the second embodiment is symmetric with respect to the center line C1 of the inflow path 12 extending in the apparatus depth direction. Specifically, the heat exchanger 110 includes heat exchange fins 134 and 136 corresponding to the heat exchange fins 34 and 36, heat exchange paths 132A, 132B and 132C corresponding to the heat exchange paths 32A, 32B and 32C, and outflow. An outflow path 122 corresponding to the path 22 is provided. Further, the heat exchanger 110 has side plates 124A and 124B corresponding to the side plates 24A and 24B, a bottom plate 126 corresponding to the bottom plate 26, and a side plate 114B corresponding to the side plate 14B. Thus, the heat exchange paths 32 and 132 and the outflow paths 22 and 122 are formed on both sides of the inflow path 12, respectively.

  In this configuration, the feedwater G1 flows into the inflow path 12 from the end of the inflow path 12 of the heat exchanger 110 on the near side in the device depth direction (arrow M1 in the figure).

  Part of the feedwater G1 flowing through the inflow path 12 flows into the heat exchange paths 32A and 132A with the flow direction changed to the apparatus width direction (arrows M2-1 and M2-2 in the figure). The feedwater G1 that has flowed into the heat exchange paths 32A and 132A flows in the apparatus width direction through the heat exchange paths 32A and 132A (arrows M3-1 and M3-2 in the figure). Further, heat exchange is performed between the water supply G1 flowing through the heat exchange paths 32A and 132A and the electronic component E via the plate member 42, the heat exchange fins 34 and 36, and the heat exchange fins 134 and 136.

  Further, the waste water G2 after the completion of the heat exchange flows from the heat exchange paths 32A and 132A into the outflow paths 22 and 122 with the flow direction changed to the apparatus depth direction (arrows M4-1 and M4-2 in the figure). The drainage G2 flowing into the outflow channels 22 and 122 flows through the outflow channels 22 and 122 to the depth side in the apparatus depth direction, and flows out of the end portions of the outflow channels 22 and 122 in the depth direction of the device (arrow M5 in the figure). -1, M5-2).

  Another part of the feedwater G1 flowing through the inflow path 12 flows into the heat exchange paths 32B and 132B (arrows M6-1 and M6-2 in the figure). The feedwater G1 flowing into the heat exchange paths 32B and 132B flows through the heat exchange paths 32B and 132B (arrows M7-1 and M7-2 in the figure). Further, heat exchange is performed between the water supply G1 flowing through the heat exchange paths 32B and 132B and the electronic component E via the plate member 42, the heat exchange fins 34, and the heat exchange fins 134.

  Further, the wastewater G2 after the completion of the heat exchange flows from the heat exchange paths 32B and 132B to the outflow paths 22 and 122 (arrows M8-1 and M8-2 in the figure). The drainage G2 that has flowed into the outflow channels 22 and 122 flows out from the end of the outflow channels 22 and 122 in the depth direction of the device (arrows M5-1 and M5-2 in the figure).

  Further, the remaining portion of the feedwater G1 flowing through the inflow passage 12 is guided by the bottom plate 16 toward the heat exchange passages 32C and 132C after the flow in the device depth direction is stopped. Then, the feedwater G1 changes the flow direction to the apparatus width direction and flows into the heat exchange paths 32C and 132C (arrows M9-1 and M9-2 in the figure). The feedwater G1 that has flowed into the heat exchange paths 32C and 132C flows through the heat exchange paths 32C and 132C (arrows M10-1 and M10-2 in the figure). Further, heat exchange is performed between the water supply G1 flowing through the heat exchange paths 32C and 132C and the electronic component E via the plate member 42, the heat exchange fins 34 and 36, and the heat exchange fins 134 and 136.

  Further, the wastewater G2 after the completion of the heat exchange flows from the heat exchange paths 32C and 132C into the outflow paths 22 and 122 (arrows M11-1 and M11-2 in the figure). The drainage G2 that has flowed into the outflow channels 22 and 122 flows out from the end of the outflow channels 22 and 122 in the depth direction of the device (arrows M5-1 and M5-2 in the figure).

  As described above, in the heat exchanger 110 of the second embodiment, the heat exchange paths 32A and 132A, the heat exchange paths 32B and 132B, and the heat exchange paths 32C and 132C are arranged in the inflow path 12 in the apparatus width direction. Formed on both sides. For this reason, the amount of heat transfer from the feedwater G1 to the heat exchange fins 34, 36 and the heat exchange fins 134, 136 can be increased as compared with the heat exchanger 10. Specifically, compared with the case where the feedwater G1 changes the flow direction to only one side and flows into the heat exchange path 32, the feedwater G1 changes the flow direction to one side and the other side, and the heat exchange paths 32 and 132 Flows into. For this reason, the water supply G1 can be effectively brought into contact with the heat exchange fins 34, 36 and the heat exchange fins 134, 136, and the amount of heat transfer described above can be increased. Other operations are the same as those of the first embodiment.

<Third embodiment>
An example of the heat exchanger according to the third embodiment of the present invention will be described with reference to FIG. In addition, about 3rd Embodiment, a different part from 2nd Embodiment is mainly demonstrated.

  As shown in FIG. 6, the heat exchanger 210 according to the third embodiment is symmetric with respect to the center line C2 of the outflow passage 122 extending in the device depth direction. Specifically, the heat exchanger 210 includes an inflow path 212 corresponding to the inflow path 12, heat exchange fins 234 and 236 corresponding to the heat exchange fins 34 and 36, and heat exchange fins 134 and 136 corresponding to the heat exchange fins 134 and 136. Fins 284 and 286 are provided. Further, the heat exchanger 210 includes heat exchange paths 232A, 232B, 232C corresponding to the heat exchange paths 32A, 32B, 32C, and heat exchange paths 282A, 282B, 282C corresponding to the heat exchange paths 132A, 132B, 132C. Have. Further, the heat exchanger 210 has an outflow channel 222 corresponding to the outflow channel 22, side plates 224A and 224B corresponding to the side plates 24A and 24B, and a bottom plate 226 corresponding to the bottom plate 26. Further, the heat exchanger 210 has side plates 214B and 264B corresponding to the side plates 14B and 114B, a side plate 274B corresponding to the side plate 124B, and a bottom plate 216 corresponding to the bottom plate 16. The bottom plate 216 is an example of a guide member.

  In this configuration, the drainage G2 flowing from the heat exchange paths 132A and 282A, the drainage G2 flowing from the heat exchange paths 132B and 282A, and the drainage G2 flowing from the heat exchange paths 132C and 282C flow into the outflow path 122. Then, the drainage G2 that has flowed into the outflow channel 122 flows out from the end of the outflow channel 122 on the far side in the device depth direction.

  As described above, in the heat exchanger 210, two (plural) inflow paths 12, 122 are formed, and three (plural) outflow paths 22, 122, 222 are formed. The outflow channels 22, 122, 222 are alternately arranged. Thereby, compared with the case where at least one of the inflow path and the outflow path is one, the heat exchange fins 34, 36, the heat exchange fins 134, 136, the heat exchange fins 234, 236, the heat exchange fins 284, 286 can be increased. Other operations are the same as those of the second embodiment.

<Fourth embodiment>
An example of the heat exchanger according to the fourth embodiment of the present invention will be described with reference to FIGS. In addition, about 4th Embodiment, the part different from 3rd Embodiment is mainly demonstrated.

  In the heat exchanger 310 according to the fourth embodiment, the flow passage width of the portion where the heat exchange passages 32 and 132 face in the inflow passage 12 becomes narrower from the upstream side to the downstream side in the flow direction of the feedwater G1. I have. Further, in the heat exchanger 310, the flow passage width of the portion where the heat exchange passages 232 and 282 face in the inflow passage 212 decreases from the upstream side to the downstream side in the flow direction of the feedwater G1.

  Further, in the heat exchanger 310, the flow passage width of the portion of the outflow passage 22 where the heat exchange passage 32 faces increases from the upstream side to the downstream side in the flow direction of the drainage G2. In the heat exchanger 310, the flow passage width of the portion where the heat exchange passages 132 and 282 face in the outflow passage 122 increases from the upstream side to the downstream side in the flow direction of the drainage G2. Further, in the heat exchanger 310, the flow passage width of the portion of the outflow passage 222 facing the heat exchange passage 232 increases from the upstream side to the downstream side in the flow direction of the drainage G2.

  Specifically, the positions of the heat exchange fins 34 and 36 in the apparatus width direction, the positions of the heat exchange fins 134 and 136 in the apparatus width direction, the positions of the heat exchange fins 234 and 236 in the apparatus width direction, and the heat exchange fins 284 The position 286 in the device width direction is shifted in the device width direction with respect to the adjacent heat exchange fin. Furthermore, the flow path width of the outlet of the outflow path 22, 122, 222 of the heat exchanger 310 is wider than the flow path width of the outflow path of the outflow path of the heat exchanger 210. Thereby, the widths of the inflow paths 12, 212 and the outflow paths 22, 122, 222 are changed.

  In the above configuration, in the heat exchanger 310, the flow rate of the feedwater G1 flowing into the heat exchange path 32A from the inflow path 12 and the flow rate of the feed water G1 flowing into the heat exchange path 32B are different from the case where the flow path width of the inflow path is constant. The difference between the flow rate of the supplied water G1 to be supplied and the flow rate of the supplied water G1 flowing into the heat exchange path 32C can be reduced.

  In the heat exchanger 310, the flow rate of the feed water G1 flowing from the inflow path 12 to the heat exchange path 132A and the flow rate of the feed water G1 flowing into the heat exchange path 132B are lower than when the flow path width of the inflow path is constant. And the flow rate of the feedwater G1 flowing into the heat exchange path 132C can be reduced.

  The same applies to the flow rate of the feedwater G1 flowing from the inflow path 212 to each heat exchange path.

  In the heat exchanger 310, the flow rate of the drainage G2 flowing from the heat exchange path 32A to the outflow path 22 and the flow rate of the wastewater G2 flowing from the heat exchange path 32B to the outflow path 22 are different from the case where the flow path width of the outflow path is constant. The difference between the flow rate of the discharged wastewater G2 and the flow rate of the discharged water G2 flowing from the heat exchange path 32C to the outflow path 22 can be reduced.

  The same applies to the flow rate of the wastewater G2 flowing from each heat exchange path to the outflow path 122 and the flow rate of the wastewater G2 flowing from each heat exchange path to the outflow path 222.

  Other functions are the same as those of the third embodiment.

  Although the present invention has been described in detail with respect to a specific embodiment, the present invention is not limited to such an embodiment, and various other embodiments can be taken within the scope of the present invention. This will be clear to those skilled in the art. For example, in the above embodiment, the water supply G1 flows through the inflow paths 12, 212 from the near side to the back side in the apparatus depth direction, and the drainage G2 flows through the outflow paths 22, 122, 222 from the near side to the back side in the apparatus depth direction. Flowed to. As described above, the feedwater G1 and the drainage G2 flow in the same direction, but the drainage G2 may flow in the opposite direction to the feedwater G1. That is, the drainage G2 may flow from the back side in the apparatus depth direction to the front side.

  In the third and fourth embodiments, two inflow paths 12, 122 are formed and three outflow paths 22, 122, 222 are formed. However, three or more inflow paths may be formed. Four or more outflow channels may be formed.

  Further, in the above embodiment, when viewed from the vertical direction of the apparatus, the heat exchange path extends in a direction orthogonal to the apparatus depth direction in which the inflow path and the outflow path extend, and connects the inflow path and the outflow path. I was However, it is only necessary that the heat exchange path extends in a direction intersecting the direction in which the inflow path and the outflow path extend, and connects the inflow path and the outflow path.

  In the above embodiment, the inflow path and the outflow path extend in the same direction. However, the direction in which the inflow path extends and the direction in which the heat exchange path extends intersect, and the outflow path extends. It is sufficient that the extending direction and the direction in which the heat exchange path extends intersect.

  Further, in the above embodiment, water is used as the fluid of the heat medium, but another fluid may be used. For example, oil, steam, carbon dioxide and the like may be used.

  Further, in the above embodiment, the electronic component (the heat exchange target) is cooled, but the heat exchange target may be heated or kept warm.

  Although not specifically described in the above embodiment, the heat exchange fins may be arranged in a V shape as shown in FIG.

Reference Signs List 10 heat exchanger 12 inflow path 16 bottom plate (one example of guide member)
22 Outflow channel 26 Bottom plate (an example of a suppression member)
32 heat exchange path 32A heat exchange path 32B heat exchange path 32C heat exchange path 34 heat exchange fins (an example of a heat exchange member)
36 Heat exchange fins (an example of heat exchange members)
40A Plane 42A Plane 110 Heat exchanger 122 Outflow channel 126 Bottom plate (an example of a suppressing member)
132 heat exchange path 132A heat exchange path 132B heat exchange path 132C heat exchange path 134 heat exchange fins (an example of a heat exchange member)
136 heat exchange fins (example of heat exchange member)
210 Heat exchanger 212 Inflow path 216 Bottom plate (one example of guide member)
222 Outflow channel 226 Bottom plate (an example of a suppression member)
232 heat exchange path 232A heat exchange path 232B heat exchange path 232C heat exchange path 234 heat exchange fins (an example of a heat exchange member)
236 Heat exchange fins (an example of heat exchange members)
282 heat exchange path 282A heat exchange path 282B heat exchange path 282C heat exchange path 284 heat exchange fins (an example of a heat exchange member)
286 heat exchange fins (example of heat exchange member)
310 heat exchanger

Claims (7)

An inflow channel that extends in one direction and flows in the one direction from the end and flows in the one direction, and the one direction that is separated from the inflow channel in an intersecting direction that intersects the one direction. A plurality of fluids extending in the one direction are arranged in the one direction between an outflow channel and a fluid flowing out from an end thereof, and connect the inflow channel and the outflow channel in the cross direction. A heat exchange path formed of a heat exchange member for exchanging heat between the heat exchange target member and the fluid, wherein the length in the cross direction is L, and the flow path width is W1, A heat exchanger having the heat exchange path satisfying (1),
A heat exchanger having a guide member for stopping the flow of the fluid flowing in the one direction in the inflow path and guiding the fluid to the heat exchange path.
W1 / 2 ≦ L ≦ 5W1 (1)   The heat exchanger according to claim 1, further comprising a suppression member that suppresses the fluid flowing in one direction from flowing into the outflow channel from an end of the outflow channel.   The heat exchanger according to claim 1, wherein the heat exchange path and the outflow path are respectively formed on both sides of the inflow path. A plurality of inflow paths are formed,
A plurality of the outflow channels are formed,
The heat exchanger according to any one of claims 1 to 3, wherein the inflow path and the outflow path are alternately arranged.   The flow passage width of a portion where the heat exchange passage faces in the inflow passage is narrowed from an upstream side to a downstream side in a flow direction of the fluid. Heat exchanger.   The flow path width of a portion where the heat exchange path faces in the outflow path is increased from an upstream side to a downstream side in a flow direction of the fluid, according to any one of claims 1 to 5. Heat exchanger.   The heat exchanger according to any one of claims 1 to 6, wherein the inflow path, the outflow path, and the heat exchange path are formed between two parallel planes.