KR20180136257A - Plate heat exchanger - Google Patents

Abstract

According to the present invention, a plate heat exchanger comprises: a plurality of plates stacked to form a plurality of channels on which a fluid flows; and a plurality of frames individually and hermetically coupled between edges of the plates adjacent to each other along a stacked direction. Moreover, each of the frames can extend along an edge of each of the plates.

Description

Plate heat exchanger {PLATE HEAT EXCHANGER}

The present invention relates to a plate heat exchanger that improves the degree of freedom in designing an internal flow path to improve the component yield and improves the heat dissipation performance by improving the flow rate distribution.

The heat exchanger is a device that transfers heat from a high-temperature fluid to a low-temperature fluid through a heat transfer wall between a high-temperature fluid and a low-temperature fluid. Among these heat exchangers, it is applicable to air conditioning systems in vehicles, oil coolers in transmission, fuel cells The heat exchanger needs to be implemented in a more compact size due to the narrowing of the installation space. A plate heat exchanger for realizing a compact size is widely used.

The plate heat exchanger includes a plurality of laminated plates, and two adjacent plates are coupled face to face, and the two plates are joined via their brazes or the like. Thus, a plurality of channels are formed between the plurality of plates, and the plurality of channels can be alternately arranged so that different fluids pass therethrough. For example, the first channel through which the first fluid passes and the second channel through which the second fluid passes may be alternately arranged along the direction in which the plurality of plates are stacked. So that heat can be transferred through the plate disposed between the first channel and the second channel.

On the other hand, in the fuel cell stack, stack cooling water for keeping the fuel cell stack at an optimal operating temperature circulates, and the fuel cell system may have a heat exchanger for fuel cells for cooling or raising the stack cooling water by the engine cooling water.

The fuel cell heat exchanger is composed of a plate heat exchanger having a heat exchange core in which a plurality of plates are laminated. A plurality of first channels and a plurality of second channels are alternately arranged in a heat exchange core of a heat exchanger for a fuel cell, a stack coolant flows in a plurality of first channels, and a plurality of engine cooling water engine coolant can flow. So that heat can be transferred between the stack cooling water and the engine cooling water.

The fuel cell heat exchanger may have a pair of first tanks for distributing the stack cooling water to the first channel side and a pair of second tanks for distributing the engine cooling water to the plurality of second channel sides. Each tank may be welded to the heat exchange core side.

As described above, the conventional heat exchanger for a fuel cell has a problem in that, when a plurality of tanks are coupled to a heat exchange core through welding, a defect rate due to welding can be increased, and rework is almost impossible when welding failure occurs.

In addition, since the conventional heat exchanger for a fuel cell is formed in a structure in which the flow path of each channel is limited, the degree of freedom in designing the flow path is low, and the component yield may not be smooth.

In addition, the conventional heat exchanger for a fuel cell may have a low flow-distributability in each channel, thereby lowering the heat exchange performance.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and it is an object of the present invention to provide a plate heat exchanger which improves the degree of freedom in designing an internal flow path, thereby improving the component yield and improving the heat dissipation performance, .

According to an aspect of the present invention, there is provided a plate heat exchanger including: a plurality of plates stacked to form a plurality of channels through which fluid flows; And a plurality of frames individually and sealingly coupled between the edges of adjacent plates along the stacking direction, each frame extending along an edge of each plate.

Wherein the plurality of channels are at least one first channel and at least one second channel arranged alternately along the lamination direction of the plates, a first fluid flows in the first channel, and a second fluid flows in the second channel .

Wherein the plurality of frames comprises at least one first frame interposed between two adjacent plates to form the first channel and at least one second frame interposed between two adjacent plates to form the second channel, . ≪ / RTI >

Each plate includes a first fluid inlet through which the first fluid is introduced, a first fluid outlet through which the first fluid is discharged, a second fluid inlet through which the second fluid flows, and a second fluid outlet through which the second fluid is discharged Wherein the first channel is in communication with the first fluid inlet and the first fluid outlet and the second channel is in communication with the second fluid inlet and the second fluid outlet.

Wherein the first frame comprises a second fluid inlet side blocking baffle for blocking communication between the first channel and the second fluid inlet and a second fluid inlet side blocking baffle for blocking communication between the first channel and the second fluid outlet, Side blocking baffle.

The second fluid inlet-side shut-off baffle may be formed in a structure surrounding the second fluid inlet, and the second fluid outlet-side shutoff baffle may have an opening communicating with the second fluid outlet.

Wherein the second frame comprises a first fluid inlet side blocking baffle for blocking communication between the second channel and the first fluid inlet and a second fluid inlet side blocking baffle for blocking communication between the first channel and the first fluid outlet, Side blocking baffle.

The first fluid inlet-side shut-off baffle is formed in a structure surrounding the first fluid inlet, and the first fluid outlet-side shut-off baffle may have an opening communicating with the first fluid outlet.

And a plurality of pin plates individually provided inside the plurality of frames.

The plurality of fin plates may include at least one first fin plate individually mounted to each first frame and at least one second fin plate individually mounted to each second frame.

The first fin plate includes a communication opening communicating with the first fluid inlet, a communication opening communicating with the first fluid outlet, a fitting opening that is fitted in the second fluid inlet side blocking baffle of the first frame, And an insertion opening that fits into the second fluid inlet-side blocking baffle.

The second fin plate having a communication opening communicating with the second fluid inlet, a communication opening communicating with the second fluid outlet, a fitting opening to be fitted in the second fluid inlet side blocking baffle of the second frame, And an insertion opening that fits into the second fluid inlet-side blocking baffle.

The first fin plate may be formed on the inner side of the first frame.

A plurality of guide channels may be formed in the first fin plate along the flow direction of the first fluid.

Two or more manifold openings may be formed on both sides of the first fin plate.

And the second fin plate may be formed of the same body on the inner side of the second frame.

A plurality of second guide channels may be formed in the second fin plate along the flow direction of the second fluid.

At least two manifold openings may be formed on both sides of the second fin plate.

According to the present invention, it is possible to improve the component yield by improving the degree of design freedom of the internal flow path, and to improve the heat exchange performance by improving the flow rate distribution.

1 is a perspective view illustrating a plate heat exchanger according to an embodiment of the present invention.
2 is an exploded perspective view illustrating a plate heat exchanger according to an embodiment of the present invention.
FIG. 3 is an exploded perspective view showing the coupling relationship of the plate, frame, and pin plate of FIG. 2;
4 is a plan view of a plate heat exchanger according to an embodiment of the present invention.
5 is a cross-sectional view taken along line AA of FIG.
6 is a cross-sectional view taken along the line BB in Fig.
7 is a plan view showing a state where a first fin plate is coupled to a first frame of a plate heat exchanger according to an embodiment of the present invention.
8 is a plan view showing a state in which the second fin plate is coupled to the second frame of the plate heat exchanger according to the embodiment of the present invention.
9 is a plan view showing a state in which a first fin plate is integrally connected to a first frame of a plate heat exchanger according to another embodiment of the present invention.
10 is a plan view showing a state in which a second fin plate is integrally connected to a second frame of a plate heat exchanger according to another embodiment of the present invention.
11 is a plan view showing a state in which a first fin plate is integrally connected to a first frame of a plate heat exchanger according to another embodiment of the present invention.
12 is a plan view showing a state in which a second fin plate is integrally connected to a second frame of a plate heat exchanger according to another embodiment of the present invention.
13 is a plan view showing a state in which a first fin plate is integrally connected to a first frame of a plate heat exchanger according to another embodiment of the present invention.
14 is a plan view showing a state in which a second fin plate is integrally connected to a second frame of a plate heat exchanger according to another embodiment of the present invention.
15 is a cross-sectional view along the CC line in Fig. 13 and the DD line in Fig.
16 is a cross-sectional view showing another embodiment of Fig.
17 is a sectional view showing still another embodiment of Fig.

Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. It should be noted that, in adding reference numerals to the constituent elements of the drawings, the same constituent elements are denoted by the same reference symbols as possible even if they are shown in different drawings. In the following description of the embodiments of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the difference that the embodiments of the present invention are not conclusive.

In describing the components of the embodiment of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements. Also, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the relevant art and are to be interpreted in an ideal or overly formal sense unless explicitly defined in the present application Do not.

1 to 3, the plate heat exchanger 10 according to the embodiment of the present invention includes a plurality of plates 11 and a plurality of frames 31 and 32 interposed between the plates 11 .

A plurality of plates 11 are stacked, and a plurality of channels 21 and 22 through which fluids flow may be formed between the stacked plates 11. Each of the plates 11 may be a plate having various shapes such as a rectangular shape, an oval shape, etc., and the upper surface and the bottom surface of each plate 11 may be formed flat.

Each frame 31,32 may be configured to extend along all the edges of each plate 11 so that the edges of the plates 11 are sealingly engaged by a plurality of frames 31,32 .

Each of the frames 31 and 32 is sealingly engaged between the edges of two adjacent plates 11 along the lamination direction of the plates 11 so that the fluid flowing through the channels 21, 22 can be formed. Each of the frames 31 and 32 has a predetermined thickness and the thickness of the channels 21 and 22 can be determined by the thickness of each of the frames 31 and 32. [ In other words, each of the frames 31 and 32 can be interposed between two adjacent plates 11 to serve as a spacer for forming the channels 21 and 22. [ Each frame 12 can be joined by welding, brazing, various other sealing techniques or the like between the edges 11a of two adjacent plates 11 along the stacking direction.

5 and 6, the plurality of channels 21 and 22 includes one or more first channels 21 and one or more second channels 22 ). The first fluid may flow through the at least one first channel 21 and the second fluid may flow through the at least one second channel 22. [

The plurality of frames 31 and 32 include at least one first frame 31 interposed between two adjacent plates 11 to form at least one first channel 21 and at least one second channel 22 interposed between the adjacent two plates 11. [ And at least one second frame 32 interposed between two adjacent plates 11 so as to form the first and second plates 11 and 12, respectively. Each first frame 31 is interposed between the edges of two adjacent plates 11 so that the first channel 31 is defined by the two adjacent plates 11, . Each second frame 32 is interposed between the edges of two adjacent plates 11 so that the second channel 32 is defined by the two adjacent plates 11, .

Each plate 11 can have a plurality of openings 12,13,14,15 and each opening 12,13,14,15 is adjacent to the corners of each plate 11 . The plurality of openings (12, 13, 14, 15) includes a first fluid inlet (12) through which the first fluid flows, a first fluid outlet (13) through which the first fluid is discharged, An inlet 14, and a second fluid outlet 15 through which the second fluid is discharged.

The first channel 21 can communicate with the first fluid inlet 12 and the first fluid outlet 13 of the adjacent plate 11 along the stacking direction of the plates 11. The second channel 22 can communicate with the second fluid inlet 14 and the second fluid outlet 15 of the adjacent plate 11 along the stacking direction of the plates 11.

Two end plates (50, 51) may be disposed on both sides of the stacked plates (11). The plates 11 stacked by the two end plates 50, 51 can be supported. The two end plates 50, 51 may be a top plate 50 and a base plate 51.

The upper plate 50 may be coupled to the uppermost plate 11 among the stacked plates 11 and one or more brackets 60 may be attached to the upper plate 50 via welding or the like. The base plate 51 may be coupled to the lowest plate 11 of the stacked plates 11 and one or more brackets 61 may be welded to the base plate 51.

The upper plate 50 has a first fluid inlet 12, a first fluid outlet 13, a second fluid inlet 14 and a second fluid outlet 15 in the same manner as the plate 11. A first fluid inlet fitting 52 is coupled to the first fluid inlet 12 of the upper plate 50 and a first fluid outlet fitting 53 is coupled to the first fluid outlet 13 of the upper plate 50. [ A second fluid inlet fitting 54 is coupled to the second fluid inlet 14 of the top plate 50 and a second fluid outlet fitting 55 is connected to the second fluid outlet 15 of the top plate 50. [ Can be combined.

2 through 6, the first frame 31 may have two blocking baffles 44 and 45 and the two blocking baffles 44 and 45 may have two blocking baffles 44 and 45, 2 fluid inlet 14 and the second fluid outlet 15, respectively. The first channel 21 communicates with the first fluid inlet 12 and the first fluid outlet 13 of each plate 11 and the first channel 21 communicates with the first fluid outlet 12 of the first frame 31 Can be blocked by the baffles (44, 45) with the second fluid inlet (14) and the second fluid outlet (15) of each plate (11).

The two blocking baffles 44 and 45 include a second fluid inlet side block baffle 44 for blocking the second fluid inlet 14 from communicating with the first channel 21, And a second fluid outlet side block baffle 45 that blocks fluid outlet 15 from communicating with first channel 21. [

The second fluid inlet side isolation baffle 44 may be formed in a structure surrounding the second fluid inlet 14 such as annular and the second fluid inlet side isolation baffle 44 may be formed in a structure surrounding the second fluid inlet 14 (Not shown).

The second fluid inlet side isolation baffle 45 may be formed in a structure surrounding the second fluid outlet 15 such as an annular shape and the second fluid inlet side isolation baffle 45 may be formed in a structure surrounding the second fluid outlet 15 (Not shown).

The thickness of each blocking baffle 44 and 45 is equal to the thickness of the first frame 31 and each blocking baffle 44 and 45 is airtightly coupled to two adjacent plates 11 by welding or the like, The blocking baffles 44 and 45 can reliably block the second fluid inlet 14 and the second fluid outlet 15 from communicating with the first channel 21. [

With this arrangement, the first channel 21 is blocked from communicating with the second fluid inlet 14 and the second fluid outlet 15, and thereby flows into the first channel 21 through the first fluid inlet 12 The first fluid 81 may flow to the first fluid outlet 13 side of the first channel 21 and be discharged through the first fluid outlet 13.

The second frame 32 may have two blocking baffles 42 and 43 and the two blocking baffles 42 and 43 may have two blocking baffles 42 and 43 as shown in Figures 2-6, 1 fluid inlet (12) and the first fluid outlet (13). The second channel 22 communicates with the second fluid inlet 14 and the second fluid outlet 15 of each plate 11 and the second channel 22 communicates with the second fluid outlet 14 of the second frame 32 Can be blocked by the baffles 42 and 43 from the first fluid inlet 12 and the first fluid outlet 13 of each plate 11.

The two blocking baffles 42 and 43 include a first fluid inlet block baffle 42 blocking the first fluid inlet 12 from communicating with the second channel 22, May be a first fluid outlet block baffle (43) that blocks the outlet (13) from communicating with the second channel (22).

The first fluid inlet side isolation baffle 42 may be formed in a structure that surrounds the first fluid inlet 12 such as an annular shape and the first fluid inlet side isolation baffle 42 may be formed in a structure surrounding the first fluid inlet 12 (Not shown).

The first fluid inlet side isolation baffle 43 may be formed in a structure surrounding the first fluid outlet 13 such as an annular shape and the first fluid inlet side isolation baffle 43 may be formed in a structure surrounding the first fluid outlet 13 (Not shown).

The thickness of each blocking baffle 42 and 43 is equal to the thickness of the second frame 32 and each blocking baffle 42 and 43 is hermetically coupled to two adjacent plates 11 through welding or the like, The blocking baffle 42 and 43 can reliably block the first fluid inlet 12 and the first fluid outlet 13 from communicating with the second channel 22.

With this arrangement, the first channel 22 is blocked from communicating with the first fluid inlet 12 and the first fluid outlet 13, thereby being introduced into the second channel 22 through the second fluid inlet 14 The second fluid 82 may flow to the second fluid outlet 15 side of the second channel 22 and be discharged through the second fluid outlet 15.

The second fluid 82 flows through the second fluid inlet 14 such that the second fluid 82 enters the second channel 22 and the second fluid 82 within the second channel 22 flows into the second channel 22, Can be discharged through the fluid outlet (15).

A plurality of fin plates 33 and 34 can be individually mounted inside the frames 31 and 32 and the fin plates 33 and 34 can smoothly flow the fluid in the channels 21 and 22. [ And may have various shapes of fin structures or guide flow paths to improve the heat exchange performance. The pin plates 33, 34 may also be referred to as turbulators.

The plurality of pin plates 33 and 34 includes at least one first pin plate 33 individually mounted to each first frame 31 and at least one second pin plate 33 individually mounted to each second frame 32. [ (34).

The first pin plate 33 may have an outer edge corresponding to the inner edge of the first frame 31 so that the outer edge of the first pin plate 33 is fitted to the inner edge of the first frame 31 Can be.

The thickness of the first fin plate 33 is made thinner than the thickness of the first frame 31 so that the first fluid flows into the first fluid inlet 12 in the first channel 21 formed by the first frame 31, Can flow smoothly from the first fluid outlet 13 side to the first fluid outlet 13 side.

The first pin plate 33 has a communication opening 12a communicating with the first fluid inlet 12, a communication opening 13a communicating with the first fluid outlet 13, A fitting opening 74 that fits into the two fluid inlet side blocking baffle 44 and a fitting opening 75 that fits into the second fluid inlet side blocking baffle 45 of the first frame 31.

Each of the fitting openings 74 and 75 may be formed in a shape corresponding to the outer edges of the respective blocking baffles 44 and 45 of the first frame 31, 74, 75 may be fitted to the outer edges of the respective blocking baffles 44, 45.

The second pin plate 34 may have an outer edge corresponding to the inner edge of the second frame 32 so that the outer edge of the second pin plate 34 is sandwiched by the inner edge of the second frame 32 Can be.

The thickness of the second fin plate 34 is made thinner than the thickness of the second frame 32 so that the second fluid flows into the second fluid inlet 14 in the second channel 22 formed by the second frame 32, Can flow smoothly from the second fluid outlet 15 side to the second fluid outlet 15 side.

The second fin plate 34 has a communication opening 14a communicating with the second fluid inlet 14, a communication opening 15a communicating with the second fluid outlet 15, A fitting opening 72 that fits into the two fluid inlet side blocking baffle 42 and a fitting opening 73 that fits into the second fluid inlet side blocking baffle 43 of the second frame 32.

Each of the fitting openings 72 and 73 may be formed in a shape corresponding to the outer edges of the respective blocking baffles 42 and 43 of the second frame 32, 72, 73 may be fitted to the outer edges of the respective blocking baffles 42, 43.

4, the flow of the first fluid 81 in the first channel 21 and the flow of the second fluid 82 in the second channel 22 are substantially perpendicular to the diagonal line of the plate 11, Direction. ≪ / RTI >

The first fluid inlet 12 and the first fluid outlet 13 of each plate 11 may be positioned diagonally away from each plate 11 as shown in Figure 7, As shown, a first fluid inlet side blocking baffle 42 in communication with the first fluid inlet 12 and a first fluid inlet side blocking baffle 43 in communication with the first fluid outlet 13 are disposed in the second And may be positioned diagonally away from the frame 32. Thereby, the first fluid 81 can flow in the diagonal direction in the first channel 21.

The first fin plate 33 may have a plurality of guide channels (not shown) for smoothly guiding the diagonal flow of the first fluid 81, and in particular, the plurality of guide channels may be formed along the flow direction of the first fluid 81 Can be extended.

As shown in FIG. 8, the second fluid inlet 14 and the second fluid outlet 15 of each plate 11 may be spaced apart diagonally so that, as shown in FIG. 7, A second fluid inlet side shutoff baffle 44 in communication with the two fluid inlets 14 and a second fluid inlet side shutoff baffle 45 in communication with the second fluid outlets 15 are disposed on the diagonal In the direction of the arrow. Thereby, the second fluid 82 can flow in the diagonal direction within the second channel 22.

The second fin plate 34 may have a plurality of guide channels (not shown) for smoothly guiding the diagonal flow of the second fluid 82, and in particular, the plurality of guide channels may extend along the flow direction of the second fluid Can be extended.

According to another embodiment of the present invention, as shown in Figs. 9 and 10, each of the fin plates 133 and 134 may be formed in the same frame in each of the frames 31 and 32. Fig.

A first pin plate 133 may be formed on the inner side of the first frame 31 and the first pin plate 133 may be connected to the first frame 31 across parallel mutually long sides thereof. have.

Two manifold openings 135a and 135b may be formed on both sides of the first fin plate 133 and the blocking baffles 45 and 44 of the first frame 31 in the manifold openings 135a and 135b, A first fluid inlet (12) and a first fluid outlet (13) may be located.

9, the second fluid inlet side blocking baffle 44 and the second fluid inlet side blocking baffle 45 of the first frame 31 are positioned diagonally apart from the first frame 31 can do. 10) of the second fluid inlet 14 and the second fluid inlet-side shut-off baffle 45 in communication with the opening 44a of the second fluid inlet-side shut-off baffle 44 as shown in Fig. 10 The second fluid outlet 15 communicating with the second fluid outlet 15 may be positioned diagonally away from the plate 11. [ Thereby, the second fluid 82 can flow in the diagonal direction within the second channel 22.

A plurality of first guide channels 137 for guiding the flow of the first fluid 81 may be formed on the first pin plate 133. The first guide channel 137 extends along the flow direction of the first fluid 81 (that is, along the diagonal direction of the first pin plate 133) so that the first fluid 81 flows into the first fluid inlet 12 ) To the first fluid outlet (13). With this configuration, the first fluid introduced through the first fluid inlet 12 can be distributed to the plurality of first guide channels 137 at one manifold opening 135a, May be joined to the manifold opening 135b on the other side and discharged through the first fluid outlet 113 after being guided toward the first fluid outlet 13 through the plurality of first guide channels 137. [

A pair of first auxiliary guide paths 137a may be provided on both sides of the first pin plate 133 and each first auxiliary guide path 137a may communicate with the adjacent first guide paths 137 . The first fluid 81 flowing toward the edge of the first pin plate 133 can be guided along the first auxiliary guide path 137a.

The second pin plate 134 may be formed as an identical body on the inside of the second frame 32 and the second pin plate 134 may be connected across the mutually parallel long sides of the second frame 32 have.

Two manifold openings 136a and 136b may be symmetrically formed on both sides of the second fin plate 134 and the blocking baffles 42 and 44 of the second frame 32 may be symmetrically formed in the manifold openings 136a and 136b. 43, a second fluid inlet 14, and a second fluid outlet 15 may be located.

10, the first fluid inlet side blocking baffle 42 and the first fluid inlet side blocking baffle 43 of the second frame 32 are positioned diagonally apart from the second frame 32 can do. Accordingly, the first fluid inlet 12 communicating with the opening 42a of the first fluid inlet-side shutoff baffle 42 and the first fluid inlet 12 communicating with the opening of the first fluid inlet- The first fluid outlet 13 communicating with the first fluid outlet 43a may be positioned diagonally away from the plate 11. [ Thereby, the first fluid can flow in the diagonal direction within the first channel (21).

A plurality of second guide channels 138 for guiding the flow of the second fluid 82 may be formed on the second pin plate 134. The second guide channel 138 extends along the flow direction of the second fluid 82 (i.e., along the diagonal direction of the second pin plate 34), so that the second fluid 82 flows into the second fluid inlet 14 ) To the second fluid outlet (15). With this configuration, the second fluid 82 introduced through the second fluid inlet 14 can be distributed to the plurality of second guide channels 138 at one manifold opening 136b, The first fluid guide 82 is guided to the second fluid outlet 15 through the plurality of second guide channels 138 and then joined to the other manifold opening 136a and discharged through the second fluid outlet 15 have.

A pair of second auxiliary guide channels 138a may be provided on both sides of the second pin plate 134 and each of the second auxiliary guide channels 138a may communicate with the adjacent second guide channels 138 . The second fluid 82 flowing toward the edge of the second pin plate 134 can be guided along the second auxiliary guide path 138a.

According to another embodiment of the present invention, the flow of the first fluid 81 and the flow of the second fluid 82 cross each other along the longitudinal direction of the plate 11 as shown in Figs. 11 and 12 .

11, the second fluid inlet-side blocking baffle 44 and the second fluid inlet-side blocking baffle 45 of the first frame 31 are spaced apart from each other in the longitudinal direction of the first frame 31 can do. The second fluid inlet 14 communicating with the opening 44a of the second fluid inlet side blocking baffle 44 and the opening of the second fluid outlet blocking baffle 45 as shown in Fig. The second fluid outlet 15 communicating with the first fluid outlet 45a may be spaced apart in the longitudinal direction of the plate 11. Thereby, the second fluid 82 can flow in the second channel 22 in the longitudinal direction.

The first frame 31 has guide baffles 91 and 92 formed at portions corresponding to the first fluid inlet 12 and the first fluid outlet 13 of the plate 11, . The first frame 31 may have a pair of guide baffles 91 formed in a portion of the plate 11 corresponding to the first fluid inlet 12 and the pair of guide baffles 91 may have a first fluid May be extended to guide the flow of the first fluid (81) around the inlet (12). The first frame 31 may have a pair of guide baffles 92 formed in a portion corresponding to the first fluid outlet 13 of the plate 11 and the pair of guide baffles 92 may have a first fluid Can be extended to guide the flow of the first fluid (81) around the outlet (13).

12, the first fluid inlet side isolation baffle 42 and the first fluid inlet side isolation baffle 43 of the second frame 32 are arranged so as to be spaced apart in the longitudinal direction of the first frame 31 . Thereby, the first fluid inlet 12 communicating with the opening 42a of the first fluid inlet-side shutoff baffle 42 and the first fluid inlet 12 communicating with the opening of the first fluid inlet-side shutoff baffle 43 And the first fluid outlet 13 communicating with the first fluid outlet 43a may be spaced apart in the longitudinal direction of the plate 11. Thereby, the first fluid 81 can flow in the first channel 21 along the longitudinal direction.

The second frame 32 has guide baffles 93 and 94 formed at portions corresponding to the second fluid inlet 14 and the second fluid outlet 15 of the plate 11 . The second frame 32 may have a pair of guide baffles 93 formed in a portion of the plate 11 corresponding to the second fluid inlet 14 and the pair of guide baffles 93 may have a second fluid And may extend to guide the flow of the second fluid 82 around the inlet 14. The second frame 32 may have a pair of guide baffles 94 formed in a portion of the plate 11 corresponding to the second fluid outlet 15 and the pair of guide baffles 94 may have a second fluid To guide the flow of the second fluid 82 around the outlet 15.

As shown in Figs. 11 and 12, the pin plates 233 and 234 may be formed of the same body in each of the frames 31 and 32.

The first pin plate 233 may be formed of the same body as the first frame 31 and the first pin plate 233 may be connected across the mutually parallel long sides of the first frame 31 have.

Two manifold openings 235a and 235b may be symmetrically formed on both sides of the first pin plate 233 and the blocking baffle 45 of the first frame 31 And 44 may be positioned individually and the first fluid inlet 12 and the first fluid outlet 13 of the plate 11 may communicate with the manifold openings 235a and 235b.

A plurality of first guide channels 237 for guiding the flow of the first fluid 81 may be formed in the first fin plate 233. The first guide channel 237 extends along the flow direction of the first fluid 81 (that is, the longitudinal direction of the first pin plate 33), so that the first fluid 81 flows from the first fluid inlet 12 It is possible to smoothly guide the flow to the first fluid outlet (13).

With this configuration, the first fluid introduced through the first fluid inlet 12 can be distributed to the plurality of first guide channels 237 from the one manifold opening 235a, and the first fluid 81, May be guided toward the first fluid outlet 13 through the plurality of first guide channels 237 and then may be merged into the manifold opening 235b at the other side and discharged through the first fluid outlet 13.

A second pin plate 234 may be formed on the inside of the second frame 32 and the second pin plate 234 may be connected across the mutually parallel long sides of the second frame 32 have.

Two manifold openings 236a and 236b may be formed on both sides of the second fin plate 234 and the blocking baffles 42 and 43 of the second frame 32 may be formed in the manifold openings 236a and 236b, The second fluid inlet 14 and the second fluid outlet 15 may be located.

A plurality of second guide channels 238 for guiding the flow of the second fluid 82 may be formed in the second fin plate 234. The second guide passage 238 extends along the longitudinal direction of the second pin plate 234 along the flow direction of the second fluid 82 so that the second fluid 82 flows from the second fluid inlet 14 to the second It is possible to smoothly guide the flow to the fluid outlet 15. With this configuration, the second fluid 82 introduced through the second fluid inlet 14 can be distributed to the plurality of second guide channels 238 from the one manifold opening 236b, The first fluid guide 82 is guided toward the second fluid outlet 15 through the plurality of second guide channels 238 and then merged into the other manifold opening 236a and discharged through the second fluid outlet 15 have.

According to another embodiment of the present invention, the flow of the first fluid 81 and the flow of the second fluid 82 may be configured to cross each other in a "U " shape as shown in FIGS. 13 and 14 .

13, the second fluid inlet side blocking baffle 44 and the second fluid outlet side blocking baffle 45 of the first frame 31 are spaced apart from each other at one end of the first frame 31 in the width direction . Accordingly, the second fluid inlet 14 communicating with the opening 44a of the second fluid inlet-side shutoff baffle 44 and the second fluid inlet 14 communicating with the opening of the second fluid outlet- The second fluid outlet 15 communicating with the first and second fluid passages 45a and 45a may be spaced apart from one end of the plate 11 in the width direction.

The first frame 31 may have a guide baffle 95 formed between the first fluid inlet 12 and the first fluid outlet 13 of the plate 11 as shown in FIG. The guide baffle 95 may extend along the longitudinal direction of the first frame 31 so that the first fluid 81 is directed from the first fluid inlet 12 to the first fluid outlet 13 side in a ≪ / RTI >

14, the first fluid inlet-side blocking baffle 42 and the first fluid outlet-side blocking baffle 43 of the second frame 32 are spaced from each other at one end of the second frame 32 in the width direction . Thereby, the first fluid inlet 12 communicating with the opening 42a of the first fluid inlet-side shutoff baffle 42 and the first fluid inlet 12 communicating with the opening of the first fluid outlet- The first fluid outlet 13 communicating with the first fluid outlet 43a may be spaced from the one end of the plate 11 in the width direction.

The second frame 32 may have a guide baffle 96 formed between the second fluid inlet 14 and the second fluid outlet 15 of the plate 11 as shown in Fig. The guide baffle 96 may extend along the longitudinal direction of the second frame 32 so that the second fluid 82 is directed from the second fluid inlet 14 to the second fluid outlet 15 side in a ≪ / RTI >

As shown in Figs. 13 and 14, the pin plates 333 and 334 may be formed of the same body in each of the frames 31 and 32.

The first pin plate 333 may be formed as an identical body on the inside of the first frame 31 and the first pin plate 333 may be connected across the mutually parallel long sides of the first frame 31 have.

Three manifold openings 335a, 335b and 335c are formed on both sides of the first pin plate 333 and the blocking baffles 44 and 45 of the first frame 31 are provided in the manifold openings 335a and 335b and 335c. ), A first fluid inlet (12) and a first fluid outlet (13).

One manifold opening 335a may be formed between one side of the first fin plate 33 and one inside side of the first frame 31. The other side of the first fin plate 33 and the other side of the first frame 31 31, two manifold openings 335b, 335c can be formed by the guide baffle 95 so as to be partitioned.

A plurality of first guide channels 337 for guiding the flow of the first fluid 81 may be formed in the first fin plate 333. The first guide passage 337 extends along the flow direction of the first fluid 81 (that is, the longitudinal direction of the first pin plate 333) so that the first fluid 81 flows into the first fluid inlet 12 ) To the first fluid outlet (13). With this configuration, the first fluid introduced through the first fluid inlet 12 is distributed to the plurality of first guide channels 337 at the manifold opening 335b, and is guided to the guide baffle U "shaped flow through the plurality of first guide flow paths 337 toward the first fluid outlet 13, merged at the manifold opening 335c, and then flows into the first fluid outlet 13). ≪ / RTI >

A second pin plate 334 may be formed on the inside of the second frame 32 and the second pin plate 334 may be connected across the mutually parallel long sides of the second frame 32 have.

Three manifold openings 336a, 336b and 336c may be formed on both sides of the second pin plate 334 and the blocking baffle 42 of the second frame 32 in the manifold openings 336a, 336b and 336c , 43, a second fluid inlet 14 and a second fluid outlet 15 may be located.

Two manifold openings 336a and 336b can be formed between the one side of the second pin plate 334 and one inner side face of the second frame 32 by the guide baffle 96, One manifold opening 336c may be formed between the other side of the plate 334 and the other inner side of the second frame 32.

A plurality of second guide channels 338 for guiding the flow of the second fluid 82 may be formed on the second pin plate 334. The second guide passage 338 extends along the flow direction of the second fluid 82 (i.e., the longitudinal direction of the second pin plate 334), so that the second fluid 82 flows into the second fluid inlet 14 ) To the second fluid outlet (15). The second fluid 82 flowing through the second fluid inlet 14 is distributed to the plurality of second guide flow paths 338 at the manifold opening 336a and flows through the manifold opening 336c U-shaped flow by the guide baffle 96 and flows toward the second fluid outlet 15 through the plurality of second guide flow paths 338. After merging at the manifold opening 336b, Can be discharged through the fluid outlet (15).

According to the embodiment of the present invention, the blocking baffles 42, 43, 44, and 45, the fin plates 333 and 334, and the like are integrally formed in the frames 31 and 32 from the raw material through punching, injection molding, The guide channels 337 and 338 of the pin plates 333 and 334 can be formed by surface laser processing.

15, the guide channels 337 and 338 of the pin plates 333 and 334 are formed in a zigzag structure along the width direction of the fin plates 333 and 334 through surface laser processing or the like, Lt; / RTI >

According to another embodiment, as shown in Fig. 16, a plurality of grooves 337a, 337b; 338a, 338b are symmetrically formed on the two pin plates 333a, 333b, 334a, And each of the grooves 337a, 337b (338a, 338b) can be formed to have a rectangular cross section. Each of the pin plates 333a and 333b (334a and 334b) can have the same thickness (X / 2). The plurality of guide flow paths 337 and 338 are formed by joining the two fin plates 333a and 333b with the plurality of grooves 337a and 337b with one another by brazing and welding in a state in which the plurality of grooves 337a and 337b and 338a and 338b are aligned with each other .

17, a plurality of grooves 337c, 337d, 338c and 338d are formed symmetrically on the two pin plates 333a, 333b, 334a and 334b through surface laser machining or the like, And the grooves 337c, 337d, 338c, and 338d may be formed to have an arcuate cross section. Each of the pin plates 333a and 333b (334a and 334b) can have the same thickness (X / 2). The plurality of guide flow paths 337 and 338 are formed by joining the two fin plates 333a and 333b and 334a and 334b through brazing and welding in a state where the plurality of grooves 337c and 337d and 338c and 338d are aligned with each other .

Although the configurations of Figs. 15 to 17 are illustrated as applied to the embodiments of Figs. 13 and 14, the configurations of Figs. 15 to 17 are the same as those of Figs. 9 and 10 and the embodiment of Figs. The same can be applied.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention.

Therefore, the embodiments disclosed in the present invention are intended to illustrate rather than limit the scope of the present invention, and the scope of the technical idea of the present invention is not limited by these embodiments. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

10: plate heat exchanger 11: plate
12: first fluid inlet 13: first fluid outlet
14: second fluid inlet 15: second fluid outlet
21: first channel 22: second channel
31: first frame 32: second frame
42: first fluid inlet side shutoff baffle 43: first fluid exit side shutoff baffle
44: second fluid inlet side shutoff baffle 45: second fluid inlet side shutoff baffle

Claims (18)

A plurality of plates stacked to form a plurality of channels through which fluid flows; And
And a plurality of frames individually and sealingly coupled between edges of adjacent plates along the stacking direction,
Each frame extending along an edge of each plate. The method according to claim 1,
Wherein the plurality of channels are at least one first channel and at least one second channel alternately disposed along the lamination direction of the plates, a first fluid flows through the first channel, and a second fluid flows through the second channel Plate heat exchanger. The method of claim 2,
Wherein the plurality of frames include:
At least one first frame interposed between two adjacent plates to form the first channel,
And at least one second frame interposed between two adjacent plates to form the second channel. The method of claim 3,
Each plate includes a first fluid inlet through which the first fluid is introduced, a first fluid outlet through which the first fluid is discharged, a second fluid inlet through which the second fluid flows, and a second fluid outlet through which the second fluid is discharged have,
The first channel communicating with the first fluid inlet and the first fluid outlet,
And the second channel communicates with the second fluid inlet and the second fluid outlet. The method of claim 4,
Wherein the first frame comprises a second fluid inlet side blocking baffle for blocking communication between the first channel and the second fluid inlet and a second fluid inlet side blocking baffle for blocking communication between the first channel and the second fluid outlet, A plate heat exchanger having a side blocking baffle. Claim 5
The second fluid inlet side blocking baffle is formed in a structure surrounding the second fluid inlet and the second fluid outlet side blocking baffle has an opening in communication with the second fluid outlet. The method of claim 4,
Wherein the second frame comprises a first fluid inlet side blocking baffle for blocking communication between the second channel and the first fluid inlet and a second fluid inlet side blocking baffle for blocking communication between the first channel and the first fluid outlet, A plate heat exchanger having a side blocking baffle. The method of claim 7,
Wherein the first fluid inlet side blocking baffle is formed in a structure surrounding the first fluid inlet and the first fluid outlet side blocking baffle has an opening in communication with the first fluid outlet. The method according to claim 5 or 7,
Further comprising a plurality of fin plates individually provided inside the plurality of frames. The method of claim 9,
Wherein the plurality of fin plates include at least one first fin plate individually mounted to each first frame and at least one second fin plate individually mounted to each second frame. The method of claim 10,
The first fin plate includes a communication opening communicating with the first fluid inlet, a communication opening communicating with the first fluid outlet, a fitting opening that is fitted in the second fluid inlet side blocking baffle of the first frame, And a fitting opening that fits into the second fluid inlet-side blocking baffle. The method of claim 10,
The second fin plate having a communication opening communicating with the second fluid inlet, a communication opening communicating with the second fluid outlet, a fitting opening to be fitted in the second fluid inlet side blocking baffle of the second frame, And a fitting opening that fits into the second fluid inlet-side blocking baffle. The method of claim 10,
And the first fin plate is formed as an identical body inside the first frame. 14. The method of claim 13,
And a plurality of guide channels are formed in the first fin plate along the flow direction of the first fluid. 14. The method of claim 13,
And two or more manifold openings are formed on both sides of the first fin plate. The method of claim 10,
And the second fin plate is formed as an identical body inside the second frame. 18. The method of claim 16,
And a plurality of second guide channels are formed in the second fin plate along the flow direction of the second fluid. 18. The method of claim 16,
And two or more manifold openings are formed on both sides of the second fin plate.

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