KR101175761B1 - Heat Exchanger - Google Patents

Abstract

The present invention relates to a plate heat exchanger, wherein two types of heat exchange media are heat exchanged, but one heat exchange medium can form a flow path of four passes or more, so that sufficient heat exchange is performed between the two media to further increase the heat exchange efficiency, and each inlet pipe And a plate heat exchanger capable of increasing productivity and miniaturization by forming outlet pipes in the same direction.

The plate heat exchanger of the present invention has a plurality of plates stacked to form a first flow portion and a second flow portion through which the first heat exchange medium and the second heat exchange medium alternately flow, and the first inlet pipe into which the first heat exchange medium flows. And a plate heat exchanger having a first outlet pipe through which the first heat exchange medium is discharged, a second inlet pipe through which the second heat exchange medium is introduced, and a second outlet pipe through which the second heat exchange medium is discharged. The heat exchanger is a first communication hole, a second communication hole, a third communication hole, and the hollow is formed so as to communicate with the first flow portion in the stacking direction of the plate and the circumference protruding upward or downward direction; 4 communicating holes; A fifth communication hole and a sixth communication hole in which the second flow part is hollow so as to communicate with the second flow part in the stacking direction of the plate, and a second junction part protruded in a direction opposite to the protruding direction of the first joint part; And a partition portion which protrudes in an upper or lower direction in a longitudinal direction to form a first flow path and a second flow path by dividing the first flow portion or the second flow portion into left and right directions, respectively. Characterized in that the plate is used.

Plate, Communication Hole, Heat Exchanger

Description

Plate Heat Exchanger {Heat Exchanger}

The present invention relates to a plate heat exchanger, wherein two types of heat exchange media are heat exchanged, but one heat exchange medium can form a flow path of four passes or more, so that sufficient heat exchange is performed between the two media to further increase the heat exchange efficiency, and each inlet pipe And a plate heat exchanger capable of increasing productivity and miniaturization by forming outlet pipes in the same direction.

In recent years, interest in the environment and energy has been increasing worldwide in the automobile industry, and studies for improving fuel efficiency have been made. Research and development for lightening, miniaturization and high performance are continuously carried out in order to satisfy the needs of various consumers.

In particular, in the vehicle air conditioning system, since it is difficult to secure enough space in the engine room, a configuration of a heat exchanger or the like constituting the vehicle air conditioning system is required to have a small size and increase efficiency.

The heat exchanger is configured to exchange heat by using a temperature difference between the first heat exchange medium and the second heat exchange medium. The heat exchanger exchanges heat between the liquid and the gas or the liquid and the liquid, and the plate heat exchanger includes a plurality of plates 10 stacked thereon to form a first heat exchanger. A first inlet pipe 20 through which the heat exchange medium and the second heat exchange medium flow, respectively, is formed, the first inlet pipe 20 through which the first heat exchange medium flows, and the first heat exchange medium. The first outlet pipe 30 through which is discharged, the second inlet pipe 40 through which the second heat exchange medium is introduced, and the second outlet pipe 50 through which the second heat exchange medium is discharged are formed.

1 is a perspective view showing a conventional plate heat exchanger, the plate heat exchanger shown in Figure 1 the first inlet pipe 20, the first outlet pipe 30, the second inlet pipe 40, and in the same direction A second outlet pipe 50 is formed, the first communication hole 11 communicating with the first inlet pipe 20 on the plate 10, and the second communication communicating with the first outlet pipe 30. An example in which a hole 12, a third communication hole 13 communicating with the second inlet pipe 40, and a fourth communication hole 14 communicating with the second outlet pipe 50 are formed is illustrated.

The plate heat exchanger is alternately formed in the stacking direction of the first flow part 60 and the second flow part 70 so that the first heat exchange medium and the second heat exchange medium do not meet and have an independent flow, and the flow is more detailed. In other words, the first heat exchange medium is introduced into the first communication hole 11 through the first inlet pipe 20 formed on the upper left side, and moves downward along the first communication hole 11. The plate 10 is moved in the longitudinal direction and is moved upward along the second communication hole 12 to have a single pass discharged through the first outlet pipe 30.

In addition, the second heat exchange medium introduced into the third communication hole 13 through the second inlet pipe 40 formed on the upper right side is also lower along the third communication hole 13. While moving, the plate 10 is moved in the longitudinal direction (as opposed to the flow direction of the first heat exchange medium), and is moved upward along the fourth communication hole 14 through the second outlet pipe 50. Has a single pass exiting.

As described above, the plate heat exchanger as shown in FIG. 1 has a disadvantage in that sufficient heat exchange between the two heat exchange media is difficult because both the first heat exchange medium and the second heat exchange medium have a single pass.

In order to solve the problems described above, a plate heat exchanger having three passes each has been proposed, which is illustrated in FIG. 2.

The plate heat exchanger illustrated in FIG. 2 has a first inlet pipe 20 through which a first heat exchange medium is introduced and a second outlet pipe 50 through which a second heat exchange medium is discharged, and a first heat exchanger on the other side of the plate heat exchanger. A first outlet pipe 30 through which the heat exchange medium is discharged and a second outlet pipe 40 through which the second heat exchange medium is introduced, and a first communication hole 11 communicating with the first inlet pipe 20; A second communication hole 12 communicating with the first outlet pipe 30, a third communication hole 13 communicating with the second inlet pipe 40, and a communication with the second outlet pipe 50. A fourth communication hole 14 is formed, and the flow of the heat exchange medium is adjusted to the first communication hole 11, the second communication hole 12, the third communication hole 13, or the fourth communication hole (14). An example is shown where a closed area exists.

First, the first heat exchange medium of the plate heat exchanger illustrated in FIG. 2 (a) is introduced through the first inlet pipe 20 formed at one side of the lower surface thereof, and then the second communication hole 11 is disposed in the first communication hole 11. The communication hole 12 is moved along the first flow portion formed by the plate 10, from the second communication hole 12 to the first communication hole 11, and the first communication hole ( In 11) after being moved to the second communication hole 12 is discharged through the first outlet pipe 30 on the other side of the upper surface.

As shown in FIG. 2 (b), the second heat exchange medium flows through the second inlet pipe 40 formed on the other side of the upper surface, and then the fourth communication hole in the third communication hole 13. 14 moves along the second flow portion formed by the plate 10, moves from the fourth communication hole 14 to the third communication hole 13, and again in the third communication hole 13. After moving to the fourth communication hole 14 is discharged through the second outlet pipe 50 on one side of the lower surface.

(The same configuration as the heat exchanger shown in FIG. 1 is indicated using the same reference numeral.)

Compared to the plate heat exchanger shown in FIG. 1, the plate heat exchanger shown in FIG. 2 has an advantage of increasing efficiency by increasing the residence time of the heat exchange medium by complicating the flow, but the effect is insignificant, and the inlet pipe and the outlet pipe are insignificant. Is not present in the same direction requires a separate space for connecting each inlet pipe and outlet pipe inside the air conditioning apparatus, there is a difficulty in mounting the heat exchanger.

In particular, when the two heat exchange media are cooling water and a refrigerant, the refrigerant is composed of 4 to 6 passes, and the coolant operated at a low pressure compared to the refrigerant should be composed of a single or two passes, whereas a conventional plate heat exchanger Regardless of the characteristics of the medium, it is difficult to achieve sufficient heat exchange between the two heat exchange media because of the same path.

The present invention has been made to solve the problems as described above, the object of the present invention is to adjust the pass according to the characteristics of the respective heat exchange medium to increase the heat exchange efficiency by sufficient heat exchange between the two heat exchange medium, The inlet pipe and the outlet pipe of each of the different heat exchange media are provided on the same side to provide a plate heat exchanger that can further reduce the size and productivity by not requiring a separate component for connection.

In the plate heat exchanger 1000 of the present invention, a plurality of plates 130 are stacked to respectively include a first flow part 100 and a second flow part 200 in which the first heat exchange medium and the second heat exchange medium alternately flow. And a first inlet pipe 110 and a first outlet pipe 120 through which the first heat exchange medium is introduced or discharged, and a second inlet pipe 210 and a second outlet through which the second heat exchange medium is introduced or discharged. In the plate heat exchanger 1000 in which the pipe 220 is formed, the plate 130 is hollowed so that the first flow part 100 communicates with each other in the stacking direction of the plate 130, and the circumference thereof is in the upper or lower direction. A first communication hole 131, a second communication hole 132, a third communication hole 133, and a fourth communication hole 134 in which first joining parts 137 and 137 ′ protruding from the first connection part 137 and 137 ′ are formed; The second joint part 138 is hollow so that the second flow part 200 communicates with each other in the stacking direction of the plate 130, and the periphery thereof protrudes in a direction opposite to the protruding direction of the first joint parts 137 and 137 ′. And a fifth communication hole 135 and a sixth communication hole 136, 138 '; And the first flow part 100 or the second flow part 200 are divided into left and right sides to protrude upward or downward in the longitudinal direction to form the first flow path 102 and the second flow path 103, respectively. Compartment portion 101; Is formed.

In addition, the first inlet pipe 110, the first outlet pipe 120, the second inlet pipe 210, and the second outlet pipe 220 are formed on the same surface, the first inlet pipe 110 And the first outlet pipe 120 is formed at one end, the second inlet pipe 210 and the second outlet pipe 220 are formed at the other end, and the first communication hole 131 is formed in the first inlet pipe ( 110, the fourth communication hole 134 is connected to the first outlet pipe 120, the fifth communication hole 135 is connected to the second inlet pipe 210, the first The six communication holes 136 are connected to the second outlet pipe 220, and the second communication holes 132 and the third communication holes 133 are divided based on the partition part 101, respectively. It is characterized by being formed adjacent to the six communication hole 136 and the fifth communication hole (135).

In addition, the plate heat exchanger 1000 has a first plate 130a having the first junction 137 formed downward and a second junction 138 formed upward, and the first junction 137 '. Is formed in the upper direction, and the second plate 130b having the second bonding portion 138 'formed in the lower direction is alternately stacked, and the first plate 130a and the second plate 130b are joined to adjacent junctions. It is characterized by.

In addition, the plate heat exchanger 1000 is joined to the first plate 130a and the second plate 130b by joining the first and second communication holes 131 and 134. The inner part where the parts 137 and 137 'are joined is formed with a second heat exchange medium communication path 230 through which the second heat exchange medium is moved to a neighboring flow path, and the first joining parts 137 and 137' are joined. The non-part is characterized in that the first heat exchange medium first communication path 240 is moved to the first heat exchange medium is formed.

At this time, the partition portion 101 is formed with a rhombus-shaped flow guide 108 for guiding the flow of the heat exchange medium to the other side flow path at the end of the second heat exchange medium communication path 230 is formed. It features.

In addition, the plate 130 is characterized in that the stepped portion 107 is formed so that the circumferential surface protrudes in the upper or lower direction so that a plurality can be stacked.

In addition, the plate 130 is characterized in that the bead 104 protruding in the upper or lower direction in the first flow path 102 or the second flow path 103 is formed, the bead 104 is the plate The stacking direction of 130 is characterized in that formed in the same direction on all the plates 130, the bead 104 is characterized in that it is formed opposite to the forming direction of the partition portion (101).

In addition, the plate heat exchanger 1000 is characterized in that the hollow leak detection hole 109 is formed in the partition portion 101 of the plate 130 to communicate in the stacking direction of the entire plate (130).

In addition, the plate 130 is the first communication hole 131, the second communication hole 132, the third communication hole 133 or the fourth communication hole 134, the first heat exchange medium is the plate ( 130 is closed to prevent communication in the stacking direction.

In addition, in the plate heat exchanger 1000, a part of the first plate 130a in which the first junction part 137 is formed in the downward direction is disposed between the first communication hole 131 and the fourth communication hole 134. A protrusion 105 protruding upward in a partition 101 extension line is formed, and a part of the second plate 130b in which the first joint 137 'is upward is formed on an extension line of the partition 101. The concave portion 106 is formed to be concave downward in the bottom direction so that when the first plate 130a and the second plate 130b are stacked, the portion where the protrusion 105 and the concave portion 106 are joined to the partition portion ( In addition, the first passage 102 and the second passage 103 are partitioned together.

In addition, in the plate heat exchanger 1000, the second heat exchange medium introduced into the fifth communication hole 135 through the second inlet pipe 210 is the first flow path 102 of the second flow part 200. A 2-1 region moved along the surface; And a second heat exchange medium moved through the second heat exchange medium communication path 230 to the sixth communication hole 136 along the second flow path 103 of the second flow part 200. 2 zones; Through the second outlet pipe 220 is characterized in that it is discharged through.

In addition, the plate heat exchanger 1000, the first heat exchange medium introduced into the first communication hole 131 through the first inlet pipe 110 is the second flow path 103 of the first flow unit 100 A-1 area to be moved to the second communication hole 132 along; The first heat exchange medium moved to the second communication hole 132 is moved along the second flow path 103 of the first flow part 100 to the first communication hole 131 again. An area A-2 positioned adjacent to one area; The first heat exchange medium moved to the fourth communication hole 134 through the first heat exchange medium first communication path 240 is the third communication along the first flow path 102 of the first flow portion 100. An area A-3 moved to the hole 133; And a first heat exchange medium that is moved to the third communication hole 133 is moved to the fourth communication hole 134 along the first flow path 102 of the first flow part 100, and the A- An area A-4 positioned adjacent to the area 3; It is characterized in that it is discharged through the first outlet pipe 120 through.

On the other hand, when the plate heat exchanger 1000 has a six-pass flow, a portion of the plate 130 is communicated between the second communication hole 132 and the third communication hole 133, the second communication The first heat exchange medium flowing through the hole 132 forms a first heat exchange medium second communication path 250 in communication with the third communication hole 133, wherein the plate heat exchanger ( The first heat exchange medium introduced into the first communication hole 131 through the first inlet pipe 110 is connected to the second communication hole along the second flow path 103 of the first flow part 100. A B-1 region moved to 132; The first heat exchange medium moved to the second communication hole 132 is moved to the first communication hole 131 along the second flow path 103 of the first flow part 100 and the first B-1. An area B-2 positioned adjacent to the area; The first heat exchange medium moved to the first communication hole 131 is moved back to the second communication hole 132 along the first flow path 102 of the first flow part 100, and the B- An area B-3 positioned adjacent to the second area; The first heat exchange medium moved to the third communication hole 133 through the second communication path 250 of the first heat exchange medium is the fourth communication along the first flow path 102 of the first flow part 100. A B-4 region moved to the hole 134; The first heat exchange medium moved to the fourth communication hole 134 is moved to the third communication hole 133 along the first flow path 102 of the first flow part 100, and the B- An area B-5 positioned adjacent to an area 4; And the first heat exchange medium moved to the third communication hole 133 is moved back to the fourth communication hole 134 along the first flow path 102 of the first flow part 100, and the B And discharged through the first outlet pipe 120 through the B-6 region located adjacent to the −5 region.

Accordingly, the plate heat exchanger of the present invention allows the heat exchange of heterogeneous heat exchange media with a simple structure of stacking plates, and one heat exchange medium can control the flow of each medium to have a flow of more than four passes. Sufficient heat exchange between the media can be made and there is an advantage to increase the heat exchange efficiency.

In addition, the plate heat exchanger of the present invention can form the inlet and outlet pipes for the inflow and outflow of the two heat exchange medium in the same direction to increase the mounting performance, the area in which the communication hole is closed or the area in which the communication path is formed It is easy to manufacture a heat exchanger having various flows according to the required conditions by adjusting the light, and there is an advantage of confirming leakage of the heat exchange medium from the outside.

Hereinafter, the plate heat exchanger 1000 of the present invention having the features as described above will be described in detail with reference to the accompanying drawings.

3 is a perspective view of a plate heat exchanger 1000 according to the present invention, FIG. 4 is a partially exploded perspective view of the plate heat exchanger 1000 shown in FIG. 3, and FIG. 5A is a plate heat exchanger shown in FIG. 3. FIG. 5B is a sectional view taken along line BB 'of the plate heat exchanger 1000 shown in FIG. 3, and FIG. 5C is a sectional view taken along line CC' of the plate heat exchanger 1000 shown in FIG. 6 is another partially exploded perspective view of the plate heat exchanger 1000 according to the present invention.

In the plate heat exchanger 1000 of the present invention as shown in FIGS. 3 to 6, a plurality of plates 130 are stacked so that the first flow unit 100 and the second heat exchange medium each have a first heat exchange medium. A second flow part 200 through which the first flow pipe 200 flows, the first inlet pipe 110 through which the first heat exchange medium is introduced, the first outlet pipe 120 through which the first heat exchange medium is discharged, and the second heat exchange medium. The second inlet pipe 210 into which is introduced, and the second outlet pipe 220 through which the second heat exchange medium is discharged are formed.

The plate 130 is formed by stacking a plurality in an upward direction to form a first flow part 100 through which the first heat exchange medium flows and a second flow part 200 through which the second heat exchange medium flows. Partition that protrudes in the upper or lower direction in the longitudinal direction to form the first flow path 102 and the second flow path 103 by dividing the space of the first flow portion 100 or the second flow portion 200 into left and right, respectively The part 101 is formed.

In the drawings, an example in which the partition portion 101 protrudes downward is illustrated, but the present invention is not limited thereto, and the first and second passages 102 and 103 may be freely formed so as to partition the first passage 102 and the second passage 103. Can be.

In addition, the plate 130 may be formed with a plurality of beads 104 to increase the heat exchange efficiency of the first heat exchange medium and the second heat exchange medium flowing in the first flow path 102 and the second flow path (103). have.

At this time, the bead 104 is protruded in the upper or lower direction in the first flow path 102 or the second flow path 103 of the plate 130, all the plates in the stacking direction of the plate 130 ( 130 is formed in the same direction.

In the plate heat exchanger 130 of the present invention, since the plurality of plates 130 are laminated and bonded in a specific direction, the first flow part 100 and the second flow part 200 are alternately formed, so that one heat exchange medium is provided. While the beads are projected to be joined to each other so that the flowable heat exchangers face each other (protrude in opposite directions) to the plates to be joined, the plate heat exchangers 130 of the present invention are all the same in the stacking direction of the plates 130. Bead 104 is formed in the direction to turbulent flow of the first heat exchange medium and the second heat exchange medium by the bead 104 to increase both heat exchange efficiency.

In the drawing, although the bead 104 is formed in an upper direction of the plate 130 and is formed in an opposite direction to the formation direction (lower direction) of the partition portion 101, this may be variously formed.

The first flow part 100 and the second flow part 200 may not mix the first heat exchange medium and the second heat exchange medium flowing therein, and each of the flow parts 100 and 200 may have the inlet. In communication with the pipes 110 and 210 and the outlet pipes 120 and 220 and forming their respective flows therein, the plate 130 has a first heat exchange medium or a second heat exchange between the respective flow units 100 and 200. Multiple holes 131, 132, 133, 134, 135, 136 are formed to allow the medium to flow.

First, the configuration of communicating the first heat exchange medium, the plate 130 is hollow so as to communicate the space in the first flow section 100 through which the first heat exchange medium flows in the stacking direction of the plate 130 A first communication hole 131, a second communication hole 132, a third communication hole 133, and a fourth communication hole, each having a first junction 137 and 137 ′ having a circumference protruding upward or downward; 134 is formed.

In addition, in order to communicate with the second heat exchange medium, the plate 130 is hollowed so that the space of the second flow part 200 communicates with each other in the stacking direction of the plate 130 such that the second heat exchange medium flows. The communication hole 135 and the sixth communication hole 136 are formed.

At this time, the fifth communication hole 135 and the sixth communication hole 136 and the protruding direction of the first joint portion 137, 137 'of the first communication hole 131 to the fourth communication hole 134 and The second junctions 138 and 138 ′ which are formed to be opposite to each other are formed to allow each heat exchange medium to flow in a space formed by stacking the plates 130.

The first junctions 137 and 137 'may include the first communication holes 131 to the fourth communication hole 134, and the second junctions 138 and 138' may include the fifth communication holes 135 and the sixth. The periphery of the communication hole 136 protrudes in the upper or lower direction so that the first heat exchange medium or the second heat exchange medium moving along the communication holes 131, 132, 133, 134, 135 and 136 is not mixed with each other. To be moved to each of the first flow portion 100 or the second flow portion 200.

Referring to the two types of first plate 130a and the second plate 130b forming the basic structure of the plate heat exchanger 1000 according to the present invention (see FIG. 4), the plate 130 is largely the first The first plate 130a having the first junction 137 formed downward and the second junction 138 formed upward, the first junction 137 'formed upward and the second junction 138' ) May be divided into a second plate 130b formed in a downward direction, and the plate heat exchanger 1000 of the present invention alternately stacks the first plate 130a and the second plate 130b, and the first plate 130b. The plate 130a and the second plate 130b are joined to neighboring joining portions.

In more detail, the first junction 137 (lower direction) of the first plate 130a and the first junction 137 ′ (upper direction) of the second plate 130b are bonded to each other, and the first When the second bonding portion 138 (upper direction) of the plate 130a and the second bonding portion 138 '(lower direction) of the second plate 130b are bonded to each other, the upper surface of the first plate 130a is formed. One heat exchange medium may flow to flow the upper surface portion of another first plate 130a provided below the second plate 130b along the bonded portions of the first bonding portions 137 and 137 '. The second heat exchange medium flows on the upper surface of the second plate 130b and the bonded portion of the second bonding parts 138 and 138 '(the second bonding part 138' of the second plate 130b) ( Downward) and the second joint part 138 (upper part) of the first plate 130a to move to another second flow part 200.

That is, the space where the first junction 137 of the first plate 130a and the first junction 137 'of the second plate 130b are bonded is a space in which the first heat exchange medium is moved upward or downward. In an embodiment, an outer portion of the hole formed by the first joining parts 137 and 137 ′ forms a second flow part 200 through which a second heat exchange medium flows, and a second joining part 138 of the first plate 130a. ) And the space where the second bonding portion 138 of the second plate 130b is bonded form the first flow portion 100 through which the first heat exchange medium flows.

At this time, the first inlet pipe 110, the first outlet pipe 120, the second inlet pipe 210, and the second outlet pipe 220 are formed to face in the same direction on the same surface, thereby providing a mounting component. It is desirable to be able to simplify.

In addition, the first inlet pipe 110 and the first outlet pipe 120 are formed at one end of the second inlet pipe 210 and the second outlet pipe 220 at the other end, the first communication hole 131 is connected to the first inlet pipe 110, the fourth communication hole 134 is connected to the first outlet pipe 120, and the fifth communication hole 135 is the second inlet. It is connected to the pipe 210, the sixth communication hole 136 is connected to the second outlet pipe 220, the second communication hole 132 and the third communication hole 133 is the partition ( It is partitioned on the basis of 101 and characterized in that formed adjacent to the sixth communication hole 136 and the fifth communication hole 135, respectively.

In the plate heat exchanger 1000 of the present invention, the second communication hole 132 is the first communication hole in the space of the first passage 102 or the second passage 103 partitioned by the partition 101. The third communication hole 133 is formed in the space where the 131 is formed, and the third communication hole 133 is formed in the space in which the fourth communication hole 134 is formed in the space of the first passage 102 or the second passage 103. Means.

In FIG. 3 and FIG. 4, the first inlet pipe 110 is on one side of the second flow path 103, and the first outlet pipe 120 is on one side of the first flow path 102. The second inlet pipe 210 is formed on the other side of the first flow path 102 and the second outlet pipe is formed on the other side of the second flow path 103 so that the first heat exchange medium and the second heat exchange medium are formed. Although an example having a cross-flow type flow is illustrated, the plate heat exchanger 1000 of the present invention includes the first inlet pipe 110, the first outlet pipe 120, and the second inlet pipe 210. ), And the position at which the second outlet pipe 220 is formed may be changed, and the forming positions of the holes 131 to 136 may also be formed according to the forming positions of the pipes 110, 120, 210, and 220. Can be different.

Referring to FIG. 4 in detail, the first communication hole 131 is formed to be connected to one end of the second flow path 103 in which the first inlet pipe 110 is formed, and the second communication hole is formed. 132 is formed between the sixth communication hole 136 and the partition 101 at the other end of the second flow path 103, and the third communication hole 133 is on the other side of the first flow path 102. The fourth communication hole 134 is formed between the fifth communication hole 135 and the partition 101 of the end, the fourth communication hole 134 is one end of the first passage 102, the first outlet pipe 120 is formed It is formed to connect with.

In addition, the fifth communication hole 135 is formed to be connected to the other end of the first flow path 102 in which the second inlet pipe 210 is formed, and the sixth communication hole 136 is the second outlet. The pipe 220 is formed to be connected to the other end of the second flow path 103 is formed.

That is, at one end, the first communication hole 131 and the fourth communication hole 134 are formed in the rear direction in the front of the drawing (from the second flow path 103 to the first flow path formation direction 102), and the other end. The sixth communication hole 136, the second communication hole 132, the partition 101, the third communication hole 133, and the fifth communication hole 135 are sequentially formed.

In the plate heat exchanger 1000 of the present invention, the first heat exchange medium and the second heat exchange medium flow alternately with each other, and the plates 130 are stacked so as not to affect each other, and the first heat exchange medium is the first communication hole. 131 to the fourth communication hole 134 and the second heat exchange medium have various flows through the fifth communication hole 135 and the sixth communication hole 136.

First, when the first plate 130a and the second plate 130b of the basic type are joined, the plate heat exchanger 1000 of the present invention has the other side (the second inlet pipe 210 and the second outlet pipe 220). On the side formed), as shown in FIG. 5A, the partition portion 101 is formed to close between the first flow path 102 and the second flow path 103 so that the second communication hole 132 and the second flow path are formed. There is no communication between the three communication holes 133.

(Some sections between the second communication hole 132 and the third communication hole 133 may be in communication in order to change the flow of the first heat exchange medium, but a deformable configuration will be described later.)

In addition, the plate heat exchanger 1000 of the present invention has one side portion (the side on which the first inlet pipe 110 and the first outlet pipe 120 are formed) as shown in FIG. 5C, the first plate 130a. And a second heat exchange medium communication path 230 in which the second heat exchange medium is moved to a neighboring flow path are formed in the inner portion where the first joining parts 137 and 137 'are joined by the bonding of the second plate 130b. The first heat exchange medium first communication path 240 through which the first heat exchange medium is moved is formed in a portion where the first junctions 137 and 137 'are not bonded.

In this case, in FIG. 5C, the first heat exchange medium first communication path 240 is not formed in the entire region, and the protrusion 105 or the recess 106 is formed in some plates so that the protrusion 105 and the recess are formed. As an example, the plate heat exchanger 1000 of the present invention has the protrusion 105 and the recess 106 formed by partitioning the first flow path 102 and the second flow path 103 by the bonding of the 106. By adjusting the number of the plate 130 to be adjusted it is possible to adjust the region in which the first heat exchange medium first communication path 240 is formed.

The configuration of the protruding portion 105 and the concave portion 106 will be described in more detail, with the first communication hole 131 and the fourth communication hole 134 extending along the line of the partition 101, the first A protrusion 105 protruding upward is formed in the first plate 130a in which the first junction 137 is formed in the lower direction, and in the second plate 130b in which the first junction 137 'is formed in the upper direction. The concave concave portion 106 is formed so that the protrusion portion 105 and the concave portion 106 are joined to each other by laminating the first plate 130a and the second plate 130b. The first flow path 102 and the second flow path 103 are also partitioned so that the first heat exchange medium first communication path 240 is not formed.

In addition, the plate heat exchanger 1000 of the present invention, the first communication hole 131, the second communication hole 132, the third communication hole 133, or the fourth communication hole to further diversify the flow. Some of the plates 130 may be closed to prevent the first heat exchange medium from communicating with each other in the stacking direction of the plate 130.

In the plate heat exchanger 1000 illustrated in FIG. 6, the basic plate 130 is configured as described above, but the plate 130 in which the first communication hole 131 and the fourth communication hole 134 are closed is used. An example is shown.

In the plate heat exchanger 1000 of the present invention, the first flow part 100 and the second flow part 200 are divided into left and right sides by the partition part 101 so that the first flow path 102 (after ) And the second flow path 103 (the former), so that a communication path must be formed so that the heat exchange medium can communicate with the first flow path 102 or the second flow path 103, and the formation and hole of the communication path It may have various flows depending on whether the (131, 132, 133, 134) is closed, the embodiments will be described below with reference to the accompanying drawings.

The formation of the second heat exchange medium communication path 230 will be described.

Since the second heat exchange medium is introduced by the second inlet pipe 210 and discharged by the second outlet pipe 220, the second heat exchange medium is the second inlet pipe 210 and the second outlet pipe ( In the first flow path 102 through the second heat exchange medium communication path 230 of one side end (the side on which the first inlet pipe 110 and the first outlet pipe 120 are formed), which is not provided at the side of 220, is provided. It is moved to the second flow path 103.

In this case, the second heat exchange medium communication path 230 is formed to be narrower than the width of the existing first passage 102 as the first inlet pipe 110 and the second outlet pipe 120 should be formed. The partition unit 101 guides the flow of the heat exchange medium to the flow path on the other side at the end where the second heat exchange medium communication path 230 is formed so that the second heat exchange medium can be smoothly moved to the second flow path 103. It is characterized in that the rhombus-shaped flow guide portion 108 is formed. (See Fig. 4)

The rhombus shape includes all shapes similar to the lozenge including the rhombus, and the plate heat exchanger 1000 of the present invention is formed by the recess 106 and the protrusion 105 along the flow guide 108. The flow of the second heat exchange medium flowing through the second heat exchange medium communication path 230 can be smoothly moved from one flow path to the other flow path.

The second heat exchange medium flow of the plate heat exchanger 1000 having the features as described above is shown in FIGS. 7A and 7B.

As shown in Figure 7a and 7b, the plate heat exchanger 1000 of the present invention may have a flow of two passes through the 2-1 region, and the 2-2 region, as seen in more detail In the plate heat exchanger 1000 of the present invention, a second heat exchange medium introduced into the fifth communication hole 135 through the second inlet pipe 210 has a first flow path 102 of the second flow part 200. A 2-1 region moved along the surface; And a second heat exchange medium moved through the second heat exchange medium communication path 230 to the sixth communication hole 136 along the second flow path 103 of the second flow part 200. -2 region; It is discharged through the second outlet pipe 220 through.

In addition, since the first heat exchange medium and the second heat exchange medium have different temperatures and different characteristics, the plate type is configured to allow sufficient heat exchange by reflecting the characteristics of each heat exchange medium (difference in flow characteristics due to pressure and the like). The heat exchanger needs to have a more complicated flow of the first heat exchange medium than the second heat exchange medium, and the structure of the plate heat exchanger 1000 in which the first heat exchange medium has a 4-pass flow will be described below. do.

As shown in FIG. 8A and FIG. 8B, the four-pass flow of the first heat exchange medium, the plate heat exchanger 1000 of the present invention through the first inlet pipe 110, the first communication hole ( An area A-1 in which the first heat exchange medium flowing into the second heat exchange medium 131 is moved to the second communication hole 132 along the second flow path 103 of the first flow part 100; The first heat exchange medium moved to the second communication hole 132 is moved along the second flow path 103 of the first flow part 100 to the first communication hole 131 again. An area A-2 positioned adjacent to one area; The first heat exchange medium moved to the fourth communication hole 134 through the first heat exchange medium first communication path 240 is the third communication along the first flow path 102 of the first flow portion 100. An area A-3 moved to the hole 133; And a first heat exchange medium that is moved to the third communication hole 133 is moved to the fourth communication hole 134 along the first flow path 102 of the first flow part 100, and the A- An area A-4 positioned adjacent to the area 3; It is characterized in that it is discharged through the first outlet pipe 120 through.

On the other hand, the plate heat exchanger 1000 of the present invention is the same as the basic configuration, the first communication hole 131 to the fourth communication hole 134 of the specific plate 130 is in communication with each hole The configuration of the communication path (which communicates the first flow path 102 and the second flow path 103) may be changed to have the six-pass flow of the first heat exchange medium.

9 and 10 are cross-sectional views of the plate heat exchanger 1000 in which the first heat exchange medium has a six-pass, and the plate heat exchanger 1000 as shown in FIG. 9 has the second inlet. A part of the second communication hole 132 and the second communication hole 132 on the side where the pipe 210 and the second outlet pipe 220 are provided to communicate with each other to flow the second communication hole 132. The first heat exchange medium forms a second communication path 250 for communicating with the third communication hole 133.

At this time, the side in which the first inlet pipe 110 and the first outlet pipe 120 are provided (see FIG. 10) has a protrusion 105 formed on the first plate 130a over the entire region of the plate 130. The recess 106 is formed in the second plate 130b so that the first heat exchange medium first communication path 240 is not formed.

11A and 11B illustrate the flow of the first heat exchange medium. The first heat exchange medium having a six-pass flow is introduced into the first communication hole 131 through the first inlet pipe 110. A B-1 region moved along the second flow path 103 of the first flow part 100 to the second communication hole 132; The first heat exchange medium moved to the second communication hole 132 is moved to the first communication hole 131 along the second flow path 103 of the first flow part 100 and the first B-1. An area B-2 positioned adjacent to the area; The first heat exchange medium moved to the first communication hole 131 is moved to the second communication hole 132 along the second flow path 103 of the first flow part 100, and the second B-2. An area B-3 positioned adjacent to the area; The first heat exchange medium moved to the third communication hole 133 through the second communication path 250 of the first heat exchange medium is along the first flow path 102 of the first flow part 100. A B-4 region moved to the communication hole 134; The first heat exchange medium moved to the fourth communication hole 134 is moved to the third communication hole 133 along the first flow path 102 of the first flow part 100, and the B-4 An area B-5 located adjacent to the area; And the first heat exchange medium moved to the third communication hole 133 is moved back to the fourth communication hole 134 along the first flow path 102 of the first flow part 100, and the B It is discharged through the first outlet pipe 120 through the B-6 region located adjacent to the -5 region.

That is, the plate heat exchanger 1000 of the present invention has a simple structure in which the plates 130 are stacked, and the first heat exchange medium has various flows including 4-pass and 6-pass, and the second heat exchange medium is The first inlet pipe 110 and the first inlet pipe 110 may further improve heat exchange performance by providing a two-pass flow independent of the first heat exchange medium to allow sufficient heat exchange between the first heat exchange medium and the second heat exchange medium. The first outlet pipe 120, the second inlet pipe 210, and the second outlet pipe 220 are provided on the same surface, thereby improving the mountability.

12 is another perspective view of the plate heat exchanger 1000 according to the present invention, and FIG. 13 is a plan view of the plate 130 forming the FIG. 12, and the plate heat exchanger of the present invention shown in FIGS. 12 and 13 is shown. When the first heat exchange medium or the second heat exchange medium that flows inside is leaked, 1000 may be entirely provided in the compartment 101 so that the leakage of the first heat exchange medium or the second heat exchange medium may be confirmed from the outside. An example of the hollow leak detection hole 109 is formed to communicate with each other in the stacking direction of the plates 130.

In the plate heat exchanger 1000, the first heat exchange medium and the second heat exchange medium having different characteristics flow therein. Even though a poor contact occurs inside, the plate heat exchanger 1000 cannot confirm that the internal heat exchange medium has leaked from the outside. There is a problem that is difficult to find the cause of.

When the heat exchange medium leaks, a change occurs in each flow so that the heat exchange performance is lowered and the heat exchange system itself is not maintained. The plate heat exchanger 1000 of the present invention protrudes in a specific direction so that the first flow path 102 is prevented. And a leak detection hole 109 is formed in the partition 101 that partitions between the second flow path 103 and the plate 130 of the entire plate heat exchanger 1000. In this case, through the leak detection hole 109, there is an advantage of confirming the leakage of the heat exchange medium from the outside.

12 and 13, the leak detection hole 109 is an example in which a plurality of circular leak detection holes 109 are formed in the longitudinal direction in which the partition portion 101 is formed, but the leak detection hole 109 is shown. One leak detection hole 109 may be formed long in the longitudinal direction within the range of), and at this time, the leak detection hole 109 should be formed within a range that does not impair the durability of the plate heat exchanger (1000). do.

The present invention is not limited to the above-described embodiments, and the scope of application is not limited, and various modifications can be made without departing from the gist of the present invention as claimed in the claims.

1 is a schematic view according to a conventional plate heat exchanger.

2 is a flow chart according to another conventional plate heat exchanger.

3 is a perspective view of a plate heat exchanger according to the present invention.

4 is a partially exploded perspective view of the plate heat exchanger shown in FIG.

5A is a cross-sectional view taken along line AA ′ of the plate heat exchanger illustrated in FIG. 3.

5B is a sectional view taken along line BB ′ of the plate heat exchanger illustrated in FIG. 3.

5C is a cross-sectional view taken along line CC ′ of the plate heat exchanger illustrated in FIG. 3.

6 is another partially exploded perspective view of the plate heat exchanger according to the present invention.

Figure 7a is a schematic diagram showing a second heat exchange medium flow of the plate heat exchanger according to the present invention.

FIG. 7B is another schematic view showing a second heat exchange medium flow of the plate heat exchanger shown in FIG. 7A; FIG.

Figure 8a is a schematic diagram showing a first heat exchange medium flow of the plate heat exchanger according to the present invention.

FIG. 8B is another schematic view showing the flow of a first heat exchange medium of the plate heat exchanger shown in FIG. 8A;

9 is a cross-sectional view of another plate heat exchanger according to the present invention.

10 is another sectional view of the plate heat exchanger shown in FIG. 9;

11A is a schematic view showing a first heat exchange medium flow of the plate heat exchanger shown in FIGS. 9 and 10.

FIG. 11B is another schematic view showing a first heat exchange medium flow of the plate heat exchanger shown in FIG. 11A; FIG.

12 is another perspective view of a plate heat exchanger according to the present invention.

FIG. 13 is a plan view of a plate forming FIG.

DESCRIPTION OF REFERENCE NUMERALS

1000: plate heat exchanger according to the present invention

100: first flow part

101: compartment 102: the first euro

103: second euro 104: bead

105: protrusion 106: recess

107: step portion 108: flow guide

109: leak detection hole

110: first inlet pipe 120: first outlet pipe

130: plate

130a: first plate

130b: second plate

131: first communication hole 132: second communication hole

133: third communication hole 134: fourth communication hole

135: fifth communication hole 136: sixth communication hole

137, 137 ': first joint 138, 138': second joint

200: second flow part

210: second inlet pipe 220: second inlet pipe

230: second heat exchange medium communication path

240: first heat exchange medium first communication path 250: first heat exchange medium second communication path

A-1, A-2, A-3, A-4: each region (4-pass) of the first heat exchange medium flow

B-1, B-2, B-3, B-4, B-5, B-6: each region (6-pass) of the first heat exchange medium flow

2-1, 2-2: each region of the second heat exchange medium flow

Claims (17)

The plurality of plates 130 are stacked to form a first flow part 100 and a second flow part 200 through which the first heat exchange medium and the second heat exchange medium alternately flow, and the first heat exchange medium flows in or out. A plate heat exchanger having a first inlet pipe (110) and a first outlet pipe (120) discharged, and a second inlet pipe (210) and a second outlet pipe (220) through which the second heat exchange medium is introduced or discharged. 1000), The plate 130 is A first communication hole 131 which is hollow so that the first flow part 100 communicates with each other in the stacking direction of the plate 130, and a first joining part 137 protrudes in an upper or lower direction thereof; A second communication hole 132, a third communication hole 133, and a fourth communication hole 134; The second joint part 138 is hollow so that the second flow part 200 communicates with each other in the stacking direction of the plate 130, and the periphery thereof protrudes in a direction opposite to the protrusion direction of the first joint parts 137 and 137 ′. A fifth communication hole 135 and a sixth communication hole 136 in which 138 'is formed; And the first flow part 100 or the second flow part 200 are divided into left and right sides to protrude upward or downward in the longitudinal direction to form the first flow path 102 and the second flow path 103, respectively. Compartment portion 101; Plate heat exchanger, characterized in that is formed. The method of claim 1, The first inlet pipe 110, the first outlet pipe 120, the second inlet pipe 210, and the second outlet pipe 220 are formed on the same surface, the first inlet pipe 110 and the first The first outlet pipe 120 is formed at one end, the second inlet pipe 210 and the second outlet pipe 220 are formed at the other end, The first communication hole 131 is connected to the first inlet pipe 110, the fourth communication hole 134 is connected to the first outlet pipe 120, and the fifth communication hole 135. Is connected to the second inlet pipe 210, the sixth communication hole 136 is connected to the second outlet pipe 220, and the second communication hole 132 and the third communication hole 133. The plate heat exchanger is partitioned on the basis of the partition portion 101 is formed adjacent to the sixth communication hole (136) and the fifth communication hole (135), respectively. 3. The method of claim 2, The plate heat exchanger 1000 is The first plate 130a having the first junction 137 formed downward and the second junction 138 formed upward, the first junction 137 ′ formed upward and the second junction portion 137 138 ') is formed by alternately stacking the second plate (130b) formed in the lower direction, wherein the first plate (130a) and the second plate (130b) are joined to adjacent joints. The method of claim 3, The plate heat exchanger 1000 is the first junction 137 by bonding the first plate 130a and the second plate 130b between the first communication hole 131 and the fourth communication hole 134. , 137 ') is a plate heat exchanger, characterized in that the second heat exchange medium communication path 230 is formed to move the second heat exchange medium to the adjacent flow path. 5. The method of claim 4, The plate heat exchanger 1000 is the first junction 137 by bonding the first plate 130a and the second plate 130b between the first communication hole 131 and the fourth communication hole 134. , 137 ') is not bonded to the plate heat exchanger, characterized in that the first heat exchange medium first communication path 240 is moved to the first heat exchange medium is formed. 5. The method of claim 4, The partition portion 101 is formed at the end where the second heat exchange medium communication path 230 is formed, the flow guide portion 108 of the rhombus shape for guiding the flow of the heat exchange medium to the flow path of the other side is formed Plate heat exchanger. 5. The method of claim 4, The plate 130 is a plate-type heat exchanger, characterized in that the stepped portion 107 is formed so that the circumferential surface protrudes in the upper or lower direction so that a plurality can be stacked. The method of claim 7, wherein The plate 130 is a plate heat exchanger, characterized in that the bead (104) protruding in the upper or lower direction in the first passage (102) or the second passage (103). 9. The method of claim 8, The bead 104 is a plate heat exchanger, characterized in that formed in the same direction on all the plates (130) in the stacking direction of the plate (130). 10. The method of claim 9, The bead (104) is a plate heat exchanger, characterized in that formed in the opposite direction of the forming portion (101). 5. The method of claim 4, The plate heat exchanger (1000) is a plate heat exchanger, characterized in that the hollow leakage detection hole (109) is formed in the partition portion 101 of the plate (130) to communicate in the stacking direction of the entire plate (130). 5. The method of claim 4, The plate 130 may include the first communication hole 131, the second communication hole 132, the third communication hole 133, or the fourth communication hole 134. Plate heat exchanger, characterized in that closed so as not to communicate in the stacking direction. The method according to any one of claims 1 to 12, The first plate 130a having the first joining portion 137 in a downward direction protrudes in an upward direction on an extension line of the partition portion 101 between the first communication hole 131 and the fourth communication hole 134. The protrusion 105 is formed, and the second plate 130b having the first junction 137 ′ in the upper direction is formed with a recess 106 recessed downward in an extension line of the partition 101. When the first plate 130a and the second plate 130b are stacked, the portion where the protrusion 105 and the concave portion 106 are joined together with the partition portion 101 includes the first flow path 102 and the second portion. A plate heat exchanger characterized by partitioning the flow path (103). 14. The method of claim 13, The plate heat exchanger 1000 is A second-first region in which the second heat exchange medium flowing into the fifth communication hole 135 through the second inlet pipe 210 moves along the first flow path 102 of the second flow part 200; And a second heat exchange medium moved through the second heat exchange medium communication path 230 to the sixth communication hole 136 along the second flow path 103 of the second flow part 200. 2 zones; Plate heat exchanger, characterized in that discharged through the second outlet pipe 220 through. 14. The method of claim 13, The plate heat exchanger 1000 is The first heat exchange medium introduced into the first communication hole 131 through the first inlet pipe 110 is along the second flow path 103 of the first flow part 100 and the second communication hole 132. A-1 region moved to; The first heat exchange medium moved to the second communication hole 132 is moved along the second flow path 103 of the first flow part 100 to the first communication hole 131 again. An area A-2 positioned adjacent to one area; The first heat exchange medium moved to the fourth communication hole 134 through the first heat exchange medium first communication path 240 is the third communication along the first flow path 102 of the first flow portion 100. An area A-3 moved to the hole 133; And a first heat exchange medium that is moved to the third communication hole 133 is moved to the fourth communication hole 134 along the first flow path 102 of the first flow part 100, and the A- An area A-4 positioned adjacent to the area 3; Plate heat exchanger, characterized in that discharged through the first outlet pipe 120 through. 14. The method of claim 13, The plate heat exchanger 1000 is A portion of the plate 130 communicates between the second communication hole 132 and the third communication hole 133 so that the first heat exchange medium flowing through the second communication hole 132 is the third communication hole ( 133) a plate heat exchanger, characterized in that to form a second communication path (250) of the first heat exchange medium. 17. The method of claim 16, The plate heat exchanger 1000 is The first heat exchange medium introduced into the first communication hole 131 through the first inlet pipe 110 is along the second flow path 103 of the first flow part 100 and the second communication hole 132. A B-1 region moved to; The first heat exchange medium moved to the second communication hole 132 is moved to the first communication hole 131 along the second flow path 103 of the first flow part 100, and the first B-1. An area B-2 positioned adjacent to the area; The first heat exchange medium moved to the first communication hole 131 is moved back to the second communication hole 132 along the first flow path 102 of the first flow part 100, and the B- An area B-3 positioned adjacent to the second area; The first heat exchange medium moved to the third communication hole 133 through the second communication path 250 of the first heat exchange medium is the fourth communication along the first flow path 102 of the first flow part 100. A B-4 region moved to the hole 134; The first heat exchange medium moved to the fourth communication hole 134 is moved to the third communication hole 133 along the first flow path 102 of the first flow part 100, and the B-4 An area B-5 located adjacent to the area; And the first heat exchange medium moved to the third communication hole 133 is moved back to the fourth communication hole 134 along the first flow path 102 of the first flow part 100, and the B The plate heat exchanger, characterized in that discharged through the first outlet pipe 120 through the B-6 region located adjacent to the -5 region.

Images