KR102154815B1 - Heat exchanger plate and plate heat exchanger including the same - Google Patents

Abstract

An embodiment of the present invention provides a heat exchange plate capable of increasing heat exchange efficiency by inducing an even flow of fluid, and a plate heat exchanger including the same. Here, the front end is connected to the inlet through which the fluid enters, and finally guides the fluid entering the inlet in the first direction, and one side of the outlet and the rear end provided to discharge the fluid in a second direction crossing the first direction. In the connected heat exchange plate, the heat exchange plate has a first flow zone located relatively close to the outlet portion and a second flow zone located relatively far from the outlet portion based on an imaginary longitudinal center line, and the first flow zone One end of the end is arranged to be connected to the outlet and has a plurality of basic patterns protruding away from the first direction, and the second flow zone is formed to protrude away from the first direction at the rear end of the second flow zone. It has a plurality of flow rate increasing patterns that increase the flow rate of the fluid flowing into the unit.

Description

Heat exchanger plate and plate heat exchanger including the same {HEAT EXCHANGER PLATE AND PLATE HEAT EXCHANGER INCLUDING THE SAME}

The present invention relates to a heat exchange plate and a plate heat exchanger including the same, and more particularly, to a heat exchange plate capable of inducing an even flow of fluid to increase heat exchange efficiency, and a plate heat exchanger including the same.

In general, a heat exchanger is used as a condenser or evaporator of an air conditioner and transfers heat from a high-temperature fluid to a low-temperature fluid, thereby performing a heating or cooling action on a fluid required by a system such as an air conditioner. to be.

Typically, the plate-type heat exchanger includes a heat exchange plate that allows heat exchange between a high-temperature fluid and a low-temperature fluid.

A plurality of heat exchange plates are stacked and used so that a high-temperature fluid and a low-temperature fluid can each have an independent flow path, and a heat transfer area is designed to increase heat exchange efficiency between the high-temperature fluid and the low-temperature fluid.

Such a plate heat exchanger has higher heat exchange efficiency than other heat exchangers, and is capable of miniaturization and weight reduction in its structure, and thus its application is increasing in the field of heat exchangers including air conditioners and heat pumps.

In the plate heat exchanger, the inlet portion through which the fluid enters and the outlet portion through which the heat-exchanged fluid is discharged are not located on the same straight line due to the space constraints of the equipment in which the plate heat exchanger is mounted.

1 is an exemplary view showing a flow of a fluid in a conventional heat exchange plate.

When the inlet portion 10 and the outlet portion 20 are connected to the heat exchange plate 30 in the form as shown in FIG. 1, the flow direction FD1 and the outlet portion 20 of the fluid flowing into the inlet portion 10 ), the discharge direction (FD2) of the fluid may be different.

In this case, the fluid flowing in the heat exchange plate 30 has a flow FD3 from the rear end of the heat exchange plate 30 to the outlet 20, and thus, the outlet portion of the rear end of the heat exchange plate 30 A dead zone (DZ), in which no fluid flow occurs, occurs in the part far from (20).

The occurrence of such a dead zone DZ causes a decrease in heat exchange efficiency.

Korean Registered Patent Publication No. 1314906 (2013. 10. 04. Announcement)

In order to solve the above problems, an object of the present invention is to provide a heat exchange plate capable of increasing heat exchange efficiency by inducing an even flow of fluid, and a plate heat exchanger including the same.

The technical problem to be achieved by the present invention is not limited to the technical problems mentioned above, and other technical problems that are not mentioned can be clearly understood by those of ordinary skill in the technical field to which the present invention belongs from the following description. There will be.

In order to achieve the above technical problem, an embodiment of the present invention provides a front end connected to an inlet through which the fluid enters, and finally guides the fluid entering the inlet in a first direction, and crosses the first direction. In a heat exchange plate connected to one side of an outlet portion and a rear end portion provided to discharge fluid in two directions, the heat exchange plate comprises a first flow zone located relatively close to the outlet portion with respect to a virtual longitudinal center line and relatively It has a second flow zone located far from the outlet, and the first flow zone has a plurality of basic patterns arranged such that one side of the rear end is connected to the outlet and protruding apart from the first direction. The second flow zone provides a heat exchange plate, characterized in that the second flow zone has a plurality of flow rate increasing patterns protruding from the rear end to be spaced apart in the first direction to increase the flow rate of the fluid flowing into the rear end of the second flow zone.

In an embodiment of the present invention, the basic pattern may be spaced apart at a first pitch interval, and the flow rate increase pattern may be spaced apart at a second pitch interval greater than the first pitch.

In an embodiment of the present invention, the basic pattern has a first wing pattern symmetrically formed with a central portion protruding in the first direction and forming a first wing angle with respect to the central portion, and the flow rate increasing pattern has the central portion It may have a second wing pattern protruding in the first direction and formed with a second wing angle smaller than the first wing angle based on the central portion.

In an embodiment of the present invention, the second wing angle has a second upper wing angle on the upper side and a second lower wing angle on the lower side with respect to the center portion of the flow rate increasing pattern, and the second upper wing angle and the second wing angle. 2 Since the lower wing angles are the same, the second wing pattern may be formed symmetrically with respect to the central portion.

In an embodiment of the present invention, the second wing angle has a second upper wing angle on the upper side and a second lower wing angle on the lower side with respect to the central portion of the flow rate increasing pattern, and the second upper wing angle is the first 2 It is smaller than the lower wing angle, and the second wing pattern may be formed asymmetrically with respect to the central portion.

In an embodiment of the present invention, the flow rate increasing pattern extends in the first direction and is provided to be spaced apart in the second direction, the plurality of first patterns formed to have a shorter length toward the outlet, respectively, It may have a second pattern positioned to correspond to the rear end of the first pattern and extending in the second direction.

In an embodiment of the present invention, the flow rate increase pattern may be further provided to the front end of the second flow zone.

In an embodiment of the present invention, the heat exchange plate may further have a hydrophilic coating layer provided at least at the rear end of the second flow zone.

On the other hand, in order to achieve the above technical problem, an embodiment of the present invention is a heat exchange plate provided by stacking a plurality in the vertical direction; And it provides a plate-type heat exchanger including a housing for receiving and fixing the heat exchanger plate provided by being stacked inside.

In an exemplary embodiment of the present invention, the heat exchange plate may be stacked so that the basic pattern and the flow rate increasing pattern face each other in opposite directions.

According to an embodiment of the present invention, the flow rate increase pattern is formed on the heat exchange plate by being divided with respect to the imaginary center line in the longitudinal direction, and the flow rate increase pattern is formed at the rear end of the second flow zone including the dead zone. It is possible to increase the flow, and through this, it is possible to increase the heat exchange efficiency by inducing an even flow of the fluid throughout the heat exchange plate.

In addition, according to an embodiment of the present invention, the formation pitch of the flow rate increase pattern is made larger than the basic pattern formed in the first flow zone connected to the outlet, or the wing angle of the flow rate increase pattern is greater than the wing angle of the basic pattern. By forming in a form that becomes smaller, it is possible to increase the pressure drop in the second flow zone to increase the flow of fluid in the direction of the rear end of the second flow zone, thereby inducing an even flow of fluid throughout the heat exchange plate to heat exchange. You can increase the efficiency.

The effects of the present invention are not limited to the above effects, and should be understood to include all effects that can be deduced from the configuration of the invention described in the detailed description or claims of the present invention.

1 is an exemplary view showing a flow of a fluid in a conventional heat exchange plate.
2 is an exemplary view schematically showing a plate heat exchanger including a heat exchanger plate according to a first embodiment of the present invention.
3 is a plan view showing a heat exchange plate according to the first embodiment of the present invention.
4 and 5 are plan view showing a heat exchange plate according to a second embodiment of the present invention.
6 is a graph showing the change of the friction coefficient according to the pattern shape.
7 is a plan view showing a heat exchange plate according to a third embodiment of the present invention.
8 is a plan view showing a heat exchange plate according to a fourth embodiment of the present invention.

Hereinafter, the present invention will be described with reference to the accompanying drawings. However, the present invention may be implemented in various different forms, and therefore is not limited to the embodiments described herein. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and similar reference numerals are assigned to similar parts throughout the specification.

Throughout the specification, when a part is said to be “connected (connected, contacted, bonded)” to another part, it is not only “directly connected”, but also “indirectly connected” with another member in the middle. This includes cases where there is "". In addition, when a part "includes" a certain component, it means that other components may be further provided, rather than excluding other components unless specifically stated to the contrary.

The terms used in the present specification are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In the present specification, terms such as “comprise” or “have” are intended to designate the presence of features, numbers, steps, actions, components, parts, or a combination thereof described in the specification, but one or more other features It is to be understood that the presence or addition of elements or numbers, steps, actions, components, parts, or combinations thereof, does not preclude in advance.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is an exemplary view schematically showing a plate heat exchanger including a heat exchanger plate according to a first embodiment of the present invention.

As shown in FIG. 2, the plate heat exchanger 100 may include a heat exchange plate 200 and a housing 300.

A plurality of heat exchange plates 200 may be stacked and provided, and the housing 300 may accommodate and fix the heat exchange plates 200 that are stacked and provided inside.

The housing 300 may have an inlet portion 310 and an outlet portion 320, and the fluid flows into the inlet portion 310 to be heat-exchanged while passing through the heat exchange plate 200 and then discharged to the outlet portion 320. I can.

Hereinafter, for convenience of description, a front end/front end/forward direction and a rear end/rear end/rear direction are described based on the flow direction of the fluid. That is, when the fluid moves from the first point to the second point, the first point will be described as the front end/front end/forward direction and the second point as the rear end/rear end/rear direction.

3 is a plan view showing a heat exchange plate according to the first embodiment of the present invention.

As shown in FIG. 3, the front end of the heat exchange plate 200 may be connected to the inlet 310 through which the fluid enters, and the fluid entering the inlet 310 is finally guided in the first direction A1. can do.

That is, the flow direction FD1 of the fluid entering the inlet 310 becomes the first direction A1, and since the heat exchange plate 200 extends in the first direction A1, the heat exchange plate 200 Also, the fluid may flow in the first direction A1.

In the drawings, the heat exchange plate 200 is shown in a form extending only in the first direction A1, but this is for convenience of explanation, so that the heat exchange plate 200 finally guides the fluid in the first direction A1. If formed, the front end may be formed in various shapes to extend in the first direction A1 or the second direction A2.

In addition, the rear end of the heat exchange plate 200 may be connected to the outlet portion 320, and the outlet portion 320 may be provided to discharge fluid in a second direction crossing the first direction A1. To this end, the outlet part 320 may be connected to one side of the rear end of the heat exchange plate 200, and the discharge flow FD2 of the fluid discharged from the outlet part 320 may be in the second direction A2.

Therefore, if only the contents described so far, even in the heat exchange plate 200 according to the present embodiment, a dead zone DZ, which is a region in which less fluid flows or no fluid flows, may be formed at the rear end of the heat exchange plate 200. .

However, according to the present invention, the flow of fluid to the dead zone DZ can be enhanced through the following description.

The heat exchange plate 200 includes a first flow zone 210 positioned relatively close to the outlet 320 with respect to the virtual longitudinal center line SL and a second flow zone 210 positioned relatively far from the outlet 320 250).

The flow path zone may be defined as a region through which a fluid flows, and thus, the flow path zone through which the fluid flows may be defined by being divided into one or more along the width direction of the heat exchange plate 200.

On the other hand, in general, the dead zone may be formed wider as the flow zone is relatively far from the outlet, and the present invention is for explaining the content of promoting flow to the dead zone. For effective explanation, the flow zone including the dead zone It would be sufficient to take an example of a eurozone that does not include a dead zone and a eurozone that contains a relatively large amount of dead zones and a eurozone that contains a relatively small amount of dead zones. Accordingly, in the present invention, for convenience, a flow path zone provided relatively close to the exit part 320 with respect to the exit part 320 and a flow path zone relatively far from the exit part 320 will be described.

In the present invention, the flow zone provided relatively close to the exit part 320 is referred to as the first flow zone 210. That is, the first flow zone 210 may be arranged such that one side of the rear end is connected to the outlet 320. In addition, the second flow zone 250 is a flow zone provided relatively far from the outlet part 320, and for convenience, the first flow zone 210 and the second flow zone 250 are a virtual longitudinal center line of the heat exchange plate 200 It is supposed to be bisected based on (SL). However, this is only a definition for convenience of explanation, and the first euro zone 210 and the second euro zone 250 may have different widths, or the first euro zone 210 and the second euro zone 250 are The concept of a small flow zone divided into two in a large flow zone may be used, or the first euro zone 210 and the second euro zone 250 may further include a plurality of flow zones, respectively.

Similarly, the dead zone DZ may be formed in both the first and second euro zones 210 and 250, and is not formed in the first euro zone 210, and is negligible in the second euro zone 250. Although it may be formed only in a very small area, hereinafter, for convenience, the dead zone DZ will be described as being formed in the rear end area of the second flow zone 250.

in detail. The first euro zone 210 may have a plurality of basic patterns 220 protruding to be spaced apart along the first direction A1. The basic pattern 220 may be formed to be spaced apart from the first pitch P1.

The second flow zone 250 may have a plurality of flow rate increasing patterns 260 protruding to be spaced apart along the first direction A1. In this embodiment, the flow rate increase pattern 260 may be formed in the same shape as the basic pattern 220.

The flow rate increase pattern 260 may be formed at the rear end of the second flow zone 250. Here, the rear end of the second flow zone 250 may include the dead zone DZ, and thus, the flow rate increase pattern 260 may be formed in a region including the dead zone DZ.

The flow rate increasing pattern 260 may be spaced apart from the second pitch P2 that is larger than the first pitch P1 that is the spacing of the basic pattern 220.

When the pattern is formed protruding on the heat exchange plate 200, the coefficient of friction between the fluid and the pattern increases, and the basic pattern 220 formed in the first flow zone 210 is spaced apart at the first pitch P1. On the other hand, since the flow rate increasing pattern 260 formed in the dead zone DZ is spaced apart from the second pitch P2, which is larger than the first pitch P1, the pressure drop of the second flow zone 250 As the drop) increases, the fluid can relatively flow to the dead zone (DZ). That is, according to the present embodiment, it is possible to increase the flow of fluid to the dead zone DZ, and induce an even flow of fluid throughout the heat exchange plate 200 as described above, thereby increasing heat exchange efficiency.

The flow rate increase pattern 260 is not limited only to the dead zone DZ, but may be formed over the entire second flow zone 250. That is, even if the flow rate increase pattern 260 is formed limited only to the dead zone DZ, and the basic pattern 220 is formed in the second flow zone 250 except for the dead zone DZ, it is converted to the dead zone DZ. The flow of fluid can be enhanced.

In addition, the heat exchange plate 200 may further have a hydrophilic coating layer provided on at least the rear end of the second flow zone 250. That is, the hydrophilic coating layer may be further provided in the region including the dead zone DZ, and further may be formed entirely in the second euro zone 250.

Since a hydrophilic coating layer is provided on at least the rear end of the second flow zone 250, the fluid flowing in the first flow zone 210 may be induced to flow further into the rear end of the second flow zone 250. When the fluid is used as water, the hydrophilic coating layer may allow water from outside the dead zone (DZ) to further flow into the dead zone (DZ). As a result, as the boundary line between water and air is pushed toward the inside of the dead zone DZ, the dead zone can be reduced.

The hydrophilic coating layer can prevent the formation of bubbles during a phase change of the fluid, and thus heat exchange efficiency can be further increased.

4 and 5 are plan view showing a heat exchange plate according to a second embodiment of the present invention. In this embodiment, the shape of the basic pattern and the flow rate increase pattern may be different, and the other configurations are the same as those of the first embodiment described above, so the repeated content is omitted as much as possible.

First, as shown in FIG. 4, the heat exchange plate 1200 according to the present embodiment has a first flow zone 1210 and a second flow zone 1250 formed by being bisected with respect to a virtual longitudinal center line SL. I can.

In addition, the basic pattern 1220 formed in the first flow zone 1210 has a center portion protruding in the first direction A1 and a first wing pattern formed symmetrically while forming a first wing angle α1 with respect to the center portion ( 1221).

In addition, the flow rate increasing pattern 1260 formed in the second flow zone 1250 may be formed at a rear end of the second flow zone 1250, that is, in a region including the dead zone DZ.

The flow rate increase pattern 1260 has a second wing pattern 1261 formed with a central portion protruding in the first direction A1 and forming a second wing angle α2 smaller than the first wing angle α1 based on the central portion. Can have. Accordingly, the flow rate increase pattern 1260 may be formed in a sharper shape than the basic pattern 1220.

6 is a graph showing the change of the friction coefficient according to the pattern shape, the horizontal axis of the graph shows the wing angle of the pattern having the wing pattern of the same shape as the basic pattern 1220 and the flow rate increase pattern 1260, and the vertical axis is friction Represents the coefficient.

Referring to FIG. 6, it can be seen that the smaller the blade angle, the smaller the friction coefficient. The coefficient of friction is proportional to the pressure drop, and thus, as the coefficient of friction decreases, the pressure drop decreases rapidly. Therefore, as the blade angle of the pattern is decreased, the flow rate of the fluid may be increased.

Accordingly, in this embodiment, even if the basic pattern 1220 and the flow rate increasing pattern 1260 are formed with the same pitch, the flow rate of the fluid in the flow rate increasing pattern 1260 may be increased compared to that of the basic pattern 1220. That is, the fluid flowing from the front end of the second flow zone 1250 in the first direction A1 decreases as the fluid flows toward the rear end, but the flow rate is increased by the flow rate increase pattern 1260 provided in the dead zone DZ. Can be promoted. Here, the meaning that the flow rate of the fluid is increased does not mean that the flow rate greater than the flow rate in the other area of the heat exchange plate 1200 is moved to the dead zone DZ, but when the flow rate increase pattern 1260 is not formed, the dead zone When compared with the flow rate of the fluid flowing into the (DZ), it can be interpreted as meaning that a relatively large flow rate flows into the dead zone (DZ) and moves.

The second wing angle (α2) may have a second upper wing angle (α2-1) on the upper side and a second lower wing angle (α2-2) on the lower side based on the central portion of the flow rate increase pattern 1260. In an embodiment, the second upper wing angle α2-1 and the second lower wing angle α2-2 may be the same. That is, in this embodiment, the second wing pattern 1261 may be formed to be symmetrical with respect to the central portion.

Meanwhile, as shown in FIG. 5, the flow rate increase pattern 1260 is not limited to the dead zone DZ and may be further provided to the front end of the second flow zone 1250. In this way, when the flow rate increase pattern 1260 is entirely formed in the second flow zone 1250, the fluid entering through the inlet 310 is less than the first flow zone 1210 from the front end of the heat exchange plate 1200. A relatively good flow is exhibited in the 2 euro zone 1250, and the flow rate is also large. Accordingly, even if the second flow zone 1250 goes from the front end to the rear end, the flow rate loss of the fluid is small, so that the flow rate of the fluid moving to the dead zone DZ can be increased.

In this embodiment, the basic pattern 1220 and the flow rate increasing pattern 1260 have been described as being formed to be spaced apart at the same pitch interval, respectively, but as described in the first embodiment, the flow rate increasing pattern 1260 is a basic pattern ( It goes without saying that it may be formed to be spaced apart by a larger pitch interval than 1220).

7 is a plan view showing a heat exchange plate according to a third embodiment of the present invention. In this embodiment, the shape of the flow rate increase pattern may be different, and other configurations are the same as those of the second embodiment described above, so the repeated content will be omitted as much as possible.

As shown in FIG. 7, the heat exchange plate 2200 according to the present embodiment may have a first flow zone 2210 and a second flow zone 2250 formed by being bisected with respect to an imaginary longitudinal center line SL. .

In addition, the basic pattern 2220 formed in the first flow zone 2210 may have a first wing pattern having a central portion protruding in the first direction A1.

In addition, the flow rate increasing pattern 2260 formed in the second flow zone 2250 may be formed at a rear end of the second flow zone 2250, that is, in a region including the dead zone DZ.

The flow rate increasing pattern 2260 has a second wing pattern formed with a central portion protruding in the first direction A1 and forming a second wing angle α2 smaller than the first wing angle of the basic pattern 2220 based on the center portion ( 2261). Accordingly, the flow rate increasing pattern 2260 may be formed in a sharper shape than the basic pattern 2220.

And, the second wing angle (α2) may have a second upper wing angle (α2-1) on the upper side and a second lower wing angle (α2-2) on the lower side based on the center of the flow rate increase pattern (2260). , In this embodiment, the second upper wing angle α2-1 may be smaller than the second lower wing angle α2-2.

That is, in this embodiment, the second wing pattern 2261 may be formed to be asymmetrical with respect to the central portion. In this case, since the pressure drop in the upper region with respect to the center of the second wing pattern 2261 becomes smaller than the pressure drop in the lower region with respect to the center of the second wing pattern 2261, more flow rate is reduced. The two wing patterns 2261 may flow to the upper region based on the central portion.

Therefore, in this embodiment, even if the basic pattern 2220 and the flow rate increasing pattern 2260 are formed with the same pitch, the flow rate of the fluid can be increased in the flow rate increasing pattern 2260 than in the basic pattern 2220, and in particular, Since the flow rate of the fluid may be further increased in the upper region based on the central portion of the flow rate increase pattern 2260, the flow rate of the fluid moving to the dead zone DZ may be increased.

In this embodiment, the basic pattern 2220 and the flow rate increasing pattern 2260 have been described as being formed to be spaced apart at the same pitch interval, respectively, but as described above, the flow rate increasing pattern 2260 is more than the basic pattern 2220. It goes without saying that it can be formed to be spaced apart at a large pitch interval.

In addition, it goes without saying that the flow rate increase pattern 2260 may also be formed entirely in the second flow zone 2250 so that the front end of the second flow zone 2250 is included.

In addition, in the wing angle of the basic pattern 2220 in the first flow zone 2210, the wing angle of the upper side may be made smaller than the wing angle of the lower side based on the center of the basic pattern 2220. By doing this, not only can a relatively larger flow rate be supplied from the upper side of the first flow zone 2210, but also it is possible to help increase the flow rate of the second flow zone 2250.

8 is a plan view showing a heat exchange plate according to a fourth embodiment of the present invention. In this embodiment, the shape of the flow rate increase pattern may be different, and other configurations are the same as those of the third embodiment described above, so the repeated content is omitted as much as possible.

As shown in FIG. 8, the heat exchange plate 3200 according to the present embodiment may have a first flow zone 3210 and a second flow zone 3250 formed by being bisected with respect to an imaginary longitudinal center line SL. .

In addition, the basic pattern 3220 formed in the first flow zone 3210 may have a first wing pattern having a central portion protruding in the first direction A1.

In addition, the flow rate increasing pattern 3260 formed in the second flow zone 3250 may be formed at a rear end of the second flow zone 3250, that is, in a region including the dead zone DZ.

In this embodiment, the flow rate increase pattern 3260 may have a first pattern 3261 and a second pattern 3262.

The first pattern 3261 may be provided in plurality to extend in the first direction A1, and may be provided to be spaced apart in the second direction A2. In addition, the first pattern 3261 may be formed to have a shorter length toward the exit part 320.

The second pattern 3262 may be positioned to correspond to the rear end of each of the first patterns 3261, and may extend in the second direction A2.

When the flow rate increase pattern 3260 according to the present embodiment is described in the manner described in the flow rate increase pattern 2260 (see FIG. 4) in the third embodiment, the second upper wing of the flow rate increase pattern 3260 according to the present embodiment The angle may be 0 degrees, and the second lower wing angle may be 90 degrees.

Since the first pattern 3261 of the flow rate increase pattern 3260 is formed to extend in the first direction A1, the pressure drop can be further increased in the region where the first pattern 3261 is formed, and thus the second flow zone At the rear end of the 3250, the flow of the fluid can be further enhanced.

The upper end of each second pattern 3262 may be formed to be spaced apart from the rear end of the corresponding first pattern 3261, but is not limited thereto, and the upper end of each second pattern 3262 The rear ends of the first pattern 3261 may be formed to be connected to each other.

Meanwhile, as described with reference to FIG. 2, a plurality of heat transfer plates may be stacked in the vertical direction. In this case, the heat exchange plate includes the basic pattern and the flow rate increasing pattern described in the second to fourth embodiments. It can be stacked to face opposite directions.

In this way, the high-temperature fluid and the low-temperature fluid flowing alternately for each layer flow in opposite directions, thereby improving heat exchange efficiency.

The above description of the present invention is for illustrative purposes only, and those of ordinary skill in the art to which the present invention pertains can understand that it is possible to easily transform it into other specific forms without changing the technical spirit or essential features of the present invention. will be. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not limiting. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as being distributed may also be implemented in a combined form.

The scope of the present invention is indicated by the claims to be described later, and all changes or modified forms derived from the meaning and scope of the claims and the concept of equivalents thereof should be interpreted as being included in the scope of the present invention.

100: plate heat exchanger
200,1200,2200,3200: heat exchanger plate
210,1210,2210,3210: Eurozone 1
220,1220,2220,3220: basic pattern
250,1250,2250,3250: 2nd euro zone
260,1260,2260,3260: flow rate increase pattern
300: housing
310: inlet
320: exit
1221: first wing pattern
1261,2261: second wing pattern
3261: first pattern
3262: second pattern
α1: first wing angle
α2: second wing angle
α2-1: 2nd upper wing angle
α2-2: second lower wing angle

Claims (10)

The front end is connected to the inlet through which the fluid enters, and finally guides the fluid entering the inlet in the first direction, and one side of the outlet and the rear end provided to discharge the fluid in a second direction crossing the first direction In this connected heat exchanger plate,
The heat exchange plate
It has a first flow zone located relatively close to the exit part with respect to a virtual longitudinal center line and a second flow zone located relatively far from the exit part,
The first flow zone has a plurality of basic patterns disposed such that one side of the rear end thereof is connected to the outlet, and protruding to be spaced apart in the first direction,
The second flow zone has a plurality of flow rate increasing patterns protruding to be spaced apart along the first direction at a rear end thereof,
The basic pattern is formed spaced apart at a first pitch interval,
The flow rate increasing pattern is a heat exchange plate, characterized in that the spaced apart formed at a second pitch interval greater than the first pitch. delete The method of claim 1,
The basic pattern has a first wing pattern symmetrically formed with a central portion protruding in the first direction and forming a first wing angle with respect to the central portion,
The flow rate increasing pattern has a second wing pattern formed with a central portion protruding in the first direction and forming a second wing angle smaller than the first wing angle with respect to the center portion. According to claim 3
The second wing angle has a second upper wing angle disposed on the upper side and a second lower wing angle disposed on the lower side with respect to the central portion of the flow rate increasing pattern,
The second upper wing angle and the second lower wing angle are the same, and the second wing pattern is formed symmetrically with respect to a central portion. According to claim 3
The second wing angle has a second upper wing angle disposed on the upper side and a second lower wing angle disposed on the lower side with respect to the central portion of the flow rate increasing pattern,
The second upper wing angle is smaller than the second lower wing angle, and the second wing pattern is formed asymmetrically with respect to a central portion. The method of claim 1,
The flow rate increase pattern is
A plurality of first patterns extending in the first direction, provided to be spaced apart in the second direction, and formed to have a shorter length toward the outlet,
And a second pattern positioned to correspond to a rear end of each of the first patterns and extending in the second direction. The method of claim 1,
The flow rate increase pattern is a heat exchange plate, characterized in that further provided to the front end of the second flow zone. The method of claim 1,
The heat exchange plate
A heat exchange plate further comprising a hydrophilic coating layer provided on at least a rear end of the second flow zone. The heat exchanger plate described in any one of claims 1, 3 to 8, and provided by stacking a plurality of them in an up-down direction; And
A plate heat exchanger including a housing for receiving and fixing the heat exchange plates stacked therein. The method of claim 9,
The heat exchanger plate is a plate type heat exchanger, characterized in that the base pattern and the flow rate increase pattern are stacked to face each other in opposite directions for each layer.

Images