WO2011021820A2

WO2011021820A2 - Heat exchanger and turbulator for a heat exchanger

Info

Publication number: WO2011021820A2
Application number: PCT/KR2010/005394
Authority: WO
Inventors: 최성오
Original assignee: 삼성공조 주식회사
Priority date: 2009-08-20
Filing date: 2010-08-16
Publication date: 2011-02-24
Also published as: US20120193077A1; WO2011021820A3; KR101103003B1; KR20110019548A

Abstract

The present invention relates to a turbulator for use in a heat exchanger and to a heat exchanger using same, wherein the turbulator has a novel shape and optimum performance and resistance, and thus can be manufactured into a unitary body having a desired size, thereby improving productivity and minimizing fluid flow resistance. For this purpose, the present invention relates to a turbulator for use in a heat exchanger, in which a plurality of crests and valleys are arranged in a staggered manner, and a front sidewall and a rear sidewall formed from respective ends of each crest have repeatedly alternating downwardly bent ends when viewed in the direction of staggered crests and valleys. Each of the bent ends is partially inclined such that a perforation for the passage of fluid is formed along the direction of the staggered crests and valleys.

Description

Heat dissipation fins for heat exchangers and heat exchangers

The present invention relates to a heat dissipation fin for a heat exchanger and a heat exchanger using the same, which enables an integrated manufacturing to a desired size to improve productivity and minimize fluid flow resistance.

In general, the heat exchanger is a device that serves to cool the heat generated from the combustion heat and the compression or rotation of the fluid or air.

That is, the heat exchanger is applied to all fields that need to cool heat or raise a low temperature.

In particular, in the case of a conventional heat exchanger, a heat radiating fin (turbulator) manufactured separately is installed between each heat exchanger plate through which air and cooling water or oil are crossed, so that air or cooling water or oil passing through each heat exchanger plate is In order to generate turbulence, the heat exchange performance between air and cooling water or oil is further improved.

In the case of the intercooler among the heat exchangers, the air charged by the impeller can be supplied to the engine after being cooled by the intercooler, so that the occurrence and charging of knocking due to the decrease in the increase in the air density due to the rise of the temperature of the charged air is increased. It plays a role of preventing deterioration of efficiency.

In addition, in the case of the oil cooler of the heat exchanger, the heat generated from the engine or the transmission, hydraulic operation, etc. is cooled to an appropriate temperature by the heat exchanger and then serves to maintain performance while being circulated to each functional part.

In addition, the heat exchanger is widely used in the field of a heat exchanger using a fluid, and in particular, in the manufacture of a large heat exchanger, an integrated heat dissipation fin having a reduced fluid resistance is required.

The heat dissipation fins are introduced in US Pat. No. 6,675,878 and Korean Utility Model Publication No. 2008-6506, and the like.

As can be seen through this, the conventional heat radiation fin 20 is formed so that the plurality of peaks 21 and the valleys 22 are repeated, and each of the peaks 21 is formed with a plurality of bent ends 23.

At this time, each of the bent end 23 is formed to protrude from side to side while sequentially alternating along the formation direction of the mountain 21 and a direction perpendicular to the formation direction of the mountain 21 (each mountain and valley is repeated Direction) is formed to protrude forward and backward while being sequentially alternating, thereby turbulent fluid passing through the bent end (23).

However, the above-described conventional heat dissipation fins 20 cannot be installed so that the flow direction of the fluid is directed in the direction in which the peaks 21 and the valleys 22 are repeated, and the direction in which the peaks are directed (or the valleys are directed). Direction), the fluid was to be installed to flow.

That is, due to structural limitations of the molding apparatus (width of the molding apparatus, etc.), the heat dissipation fin 20 may be formed long along the direction in which the peaks 21 and the valleys 22 are repeated, but the peaks 21 and the valleys ( 22 and the valleys 22 were repeated in the flow direction of the fluid with respect to the heat dissipation fin 20 of the above-described structure. When installed in the direction of the direction, the resistance of the fluid is so large that it was not practical use in the oil cooler for large hydraulics.

Therefore, the fluid was forced to flow along a direction perpendicular to the direction in which the peaks 21 and the valleys 22 are repeated, but in this case, the turbulence performance of the fluid is relatively poor.

In addition, as described above, since the heat dissipation fins 20 could not be formed long in a direction perpendicular to the direction in which the peaks 21 and the valleys 22 were repeated, the heat dissipation fins 20 were not integrally formed, but a plurality of the heat dissipation fins 20 were not formed integrally. There is no choice but to configure the assembly type to be sequentially connected along the flow direction of the fluid by dividing into, and this causes a decrease in workability and a decrease in heat exchange performance due to an increase in the number of work for the installation of the respective heat radiation fins 20. I have a problem.

The present invention has been made to solve the above-described problems according to the prior art, the object of the present invention is to enable the integral manufacturing to the desired size to improve productivity and to minimize the flow resistance of the fluid It is to provide a new type of heat exchanger and a heat radiation fin for the heat exchanger applied thereto.

According to the heat exchanger of the present invention for achieving the above object a plurality of heat exchanger plates stacked while being spaced apart from each other; In addition, a plurality of peaks and valleys are provided between the heat exchange plates, and a plurality of peaks and valleys are repeatedly formed along the flow direction of the fluid, and a plurality of bending ends are repeatedly formed in each of the peaks. It characterized in that it comprises a heat dissipation fin: formed by a through hole through which the fluid is passed along the direction in which each of the peaks and valleys are repeated by each bending end.

Here, the bent ends formed on each acid of the heat dissipation fin are formed to be bent inwardly in an inclined state based on the flow direction of the fluid, and a through hole through which the fluid passes by the inclined bent ends is formed. do.

In addition, the inclination angle of each bent end is characterized in that it is determined within the range of 20 ~ 45 °.

In addition, according to the heat dissipation fin for heat exchanger of the present invention for achieving the above object, a plurality of hills and valleys are formed repeatedly, and the front and rear of each mountain alternately repeatedly when the hills and valleys are viewed as a reference. While being bent inwardly a plurality of bent ends are formed, wherein each of the bent ends is formed to be inclined to the left and right partly so that the passage through which the fluid passes through the plurality of mountains and valleys is characterized in that it is configured to penetrate.

Here, the inclination angle of each bending end is characterized in that it is determined within the range of 20 ~ 45 °.

In addition, the bent end formed in each of the mountains is characterized in that the inclined direction is sequentially formed symmetrically along the direction in which each mountain in the direction of the fluid flow is repeated.

In addition, the bent ends are formed such that the bent ends of the left side and the bent ends of the right side are inclined in a symmetrical direction with respect to the center side of the direction in which the respective hills and valleys repeat the fluid flow direction. do.

In addition, the plurality of hills and valleys is characterized in that the inclined formed in the fluid inflow direction, or the flow direction relative to the reference, wherein the inclination angle formed by the plurality of hills and valleys is determined in the range of 10 to 30 ° and the angle The inclination angle of the bend end is characterized in that it is determined within the range of 20 ~ 45 °.

As described above, since the heat dissipation fin for heat exchanger according to the present invention can be arranged in a shape in which the acid and the valley are repeated along the flow direction of the fluid, the heat dissipation fin can be manufactured in one piece regardless of the desired length. It is possible to shorten the assembly process to install has an effect that can achieve an improvement in workability.

In particular, the heat dissipation fin for heat exchanger according to the present invention has the effect that turbulence of the fluid by the bent end of the inclined form can be further improved compared to the installation structure of the conventional heat dissipation.

1 is a perspective view for explaining a conventional heat radiation fin for a conventional heat exchanger

2 is an exploded perspective view illustrating the structure of a heat exchanger according to a preferred embodiment of the present invention.

3 is a plan view illustrating the structure of a heat exchanger according to a preferred embodiment of the present invention.

Figure 4 is a side cross-sectional view showing for explaining the structure of a heat exchanger according to a preferred embodiment of the present invention

5 is a plan view showing for explaining another example of the structure of the heat exchanger according to a preferred embodiment of the present invention

Figure 6 is a side cross-sectional view shown for explaining another example of the structure of the heat exchanger according to a preferred embodiment of the present invention

Figure 7 is an enlarged perspective view of the main portion shown to explain the structure of the heat radiation fins for heat exchangers according to a preferred embodiment of the present invention

8 is a plan view showing for explaining a heat radiation fin for a heat exchanger according to another embodiment of the present invention

9 is a plan view showing for explaining a heat radiation fin for a heat exchanger according to another embodiment of the present invention

10 is a plan view showing for explaining a heat radiation fin for a heat exchanger according to another embodiment of the present invention

11 to 14 is a state diagram for explaining the method of forming a heat radiation fin according to the present invention.

Hereinafter, a preferred embodiment of a heat exchanger of the present invention and a heat dissipation fin for a heat exchanger applied thereto will be described with reference to FIGS. 2 to 14.

First, the heat exchanger according to the preferred embodiment of the present invention includes a heat exchange plate 100 and a heat dissipation fin 200 as shown in FIG. 2.

Here, the heat exchange plate 100 is a series of configurations for guiding the flow of the fluid as well as heat exchange with the fluid, provided with a plurality, and each of them is configured to be stacked spaced apart from each other up and down.

In addition, the partition bar 110 for interposing the flow of the fluid while maintaining the separation distance between each other in terms of the flow direction of the fluid between each of the heat exchange plates 100 as a reference to the interposition is interposed. .

In this case, the partition bar 110 is provided two or three or more depending on the number of flow paths of the fluid formed between each of the heat exchange plates (100). That is, when there is one fluid flow path between each heat exchange plate 100 as shown in FIG. 3 and FIG. 4, one is provided on each side of each heat exchange plate 100 (upper and lower side in the drawing), and 5 and 6, when there are two fluid flow paths between the heat exchange plates 100, one is additionally provided between the respective fluid flow paths, and a heat dissipation fin ( 200) is provided respectively.

Next, the heat dissipation fin 200 is a series of components provided between the heat exchange plates 100 to impart turbulence to the fluid passing between the heat exchange plates 100 to improve the heat exchange effect.

The structure of the heat dissipation fin 200 will be described in more detail as follows.

First, the heat dissipation fins 200 are formed in a shape in which a plurality of mountains 210 and valleys 220 are repeated, and each of the mountains 210 has a plurality of bent ends 230 and through holes 240 formed therein. Is done.

In this case, the bent end 230 is a portion formed by bending down a portion of the mountain 210 by a lancing process or the like, and is viewed based on the direction in which the mountain 210 and the valley 220 are repeated. When bent inward while repeatedly alternating with the front and rear of each mountain 210 is formed to be partly inclined to the left and right.

Accordingly, each of the mountains 210 is formed with a through hole 240 through which fluid can pass by the bent ends 230 of the inclined shape, and the through holes 240 are each mountain 210. ) And the valleys 220 are formed to penetrate toward the repeating direction. This is as shown in FIG. 7 attached.

In particular, the embodiment of the present invention suggests that the inclination angle α of each of the bent ends 230 is determined to form an angle range of 20 to 45 °. That is, the bending direction of each bending end 230 is molded so as to be inclined by 20 to 45 ° based on the formation direction of the peak 210. This is as shown in the enlarged view of FIG. 3 attached.

The limitation on the range of the inclination angle is to enable smooth molding while also improving turbulence while minimizing the flow resistance of the fluid.

If the inclination angle of each of the bends 230 is in the range of 20 ° or less, a problem that the resistance due to the fluid flow increases as a portion blocking the flow of the fluid by the front and rear surfaces of the corresponding peak 210 increases. This is caused, even when the inclination angle of each of the bent end 230 is in the range of 45 ° or more the resistance according to the fluid flow is equally large, there is a difficulty in its molding.

On the other hand, the embodiment of the present invention suggests that the heat dissipation fins 200 are provided separately from each other between the heat exchange plates 100, but are integrally formed along the fluid flow direction between each heat exchange plate 100. .

This, as shown in Figures 3 and 5 attached to each of the heat radiation fins 200 according to the embodiment of the present invention based on the flow direction of the fluid between each heat exchange plate 100, each mountain 210 and the valley 220 This is possible by being arranged to be repeated.

That is, in the case of roll processing or other mold processing, when the molding proceeds along the direction in which the peak 210 and the valley 220 are repeated, the flow direction of the fluid is the peak 210 and the valley 220. It is possible to manufacture in one piece by allowing the direction to be repeated.

In particular, since the heat dissipation fins 200 may be integrally manufactured as described above, the work of installing the heat dissipation fins 200 between the heat exchange plates 100 may be completed once, thereby reducing work time. You can get it.

In the following, it will be described the heat exchange process by the heat radiation fin for the heat exchanger according to the preferred embodiment of the present invention described above.

First, the fluid introduced from the outside through the fluid inlet side of the heat exchanger passes between the respective heat exchange plates 100.

At this time, the fluid passes through the heat dissipation fins 200 interposed between the heat exchange plates 100, and in the passage of the heat dissipation fins 200, the fluid is turbulent to make the heat exchanger plate 100 more smoothly. You lose.

That is, the fluid is guided by the bent end 230 formed on each mountain 210 of the heat dissipation fin 200 and passes through the through hole 240 formed as the bent ends 230 are inclinedly formed. As it flows along the ball 240, it becomes turbulent and heat exchange with the heat exchange plate is performed.

Then, the fluid passing through the heat dissipation fins 200 between the heat exchange plates 100 through a series of processes is discharged to the outside through the fluid outlet side of the heat exchanger.

On the other hand, the shape of the heat dissipation fin 200 according to the present invention is not limited to the inclination direction of each bent end 230 is formed only in the same direction as in the above-described embodiment.

For example, as illustrated in FIG. 8, the bent ends 230 formed in each of the mountains 210 may be formed to have symmetrical inclination directions sequentially along the direction in which the respective mountains 210 are repeated. will be.

That is, if the inclination direction of the bent ends 230 formed on the first mountain 210 is formed to be inclined to the left toward the rear, the inclination direction of the bent ends 230 formed on the mountain 210 in the next row is toward the rear. It is to be formed to be inclined to the right.

As a result, turbulence of the fluid can be further improved.

In addition, as shown in FIG. 9, each of the bent ends 230 has a bent end on the left side when viewed from the center side of the direction in which the peaks 210 and the valleys 220 are repeated. 230 and the bent end 230 of the right side may be formed to be inclined in a direction symmetrical with each other.

That is, when the inclination direction of the bent ends 230 formed on the left side is inclined to the left side toward the rear when viewed from the center portion of the heat dissipation fin 200, the inclined direction of the bent ends 230 formed on the right side Is to be inclined to the right toward the rear.

As a result, turbulence of the fluid can be further improved.

In addition, the heat dissipation fins 200 according to the present invention as shown in FIG. 10 may be configured such that the plurality of mountains 210 and the valleys 220 are inclined when viewed based on the inflow direction or the flow direction of the fluid.

That is, due to the additional inclination of the mountain 210 and the valley 220, the through hole 240 has a double inclination structure such as the inclination of the inclination and the bent end 230, thereby turbulence of the fluid Can be further improved.

In this case, the inclination angle formed by the plurality of peaks 210 and the valleys 220 may be determined within a range of 10 to 30 degrees, and the inclination angle of each of the bent ends 230 may be determined within a range of 20 to 45 degrees.

If the inclination angle formed by the peaks 210 and the valleys 230 is smaller than 10 °, the effect of improving turbulence due to the double inclination structure is extremely small, and the inclination angle is greater than 30 °. Since the slope of the mountain 210 and the valley 220 and the bent end 230 may be determined according to the aforementioned range, the excessive slope of the through hole 240 may cause a problem that the fluid may not flow smoothly. It is most desirable.

On the other hand, Figures 11 and 12 attached shows an example for forming the heat radiation fin according to the present invention.

That is, as shown in FIG. 11, the heat dissipation fin 200 may be molded by a general method of installing a tool 300 for forming the bent end 230 perpendicular to a direction in which the raw material is inserted.

If, as shown in Figure 10 attached to the plurality of mountains 210 and the valleys 220 forming the heat radiation fins 200 to be inclined when viewed in the inflow direction, or the flow direction of the fluid attached to Figure 12 and As described above, the tool 300 for forming the bending end 230 may be inclined to be molded.

In addition, if the traveling direction of the heat radiation fin passing through the tool 300 is inclined, it may be molded through the arrangement structure as shown in FIGS. 13 and 14.

As such, the heat dissipation fin 200 according to the present invention can be molded in various ways.

Claims

A plurality of heat exchange plates stacked while being spaced apart from each other; And,

It is provided between each of the heat exchange plates, and a plurality of mountains and valleys are formed to be repeated along the flow direction of the fluid while forming an integrated body, and each of the bent is formed with a plurality of bent ends alternately alternately bent inwardly Heat dissipation fin comprising: a heat dissipation fin formed by a through hole through which fluid passes through the acid and the valley in a repeating direction.
The method of claim 1,

The bent ends formed on each acid of the heat dissipation fins are formed to be bent inwardly in an inclined state based on the flow direction of the fluid, and a through hole through which the fluid passes by the inclined bent ends is formed. group.
The method of claim 2,

Heat exchanger, characterized in that the inclination angle of the bent end is determined within the range of 20 ~ 45 °.
A plurality of mountains and valleys are formed repeatedly,

The front and rear of each mountain is formed with a plurality of bent ends bent inward while repeatedly alternating with respect to the direction in which the mountain and the valley is repeated,

Each of the bent ends is formed to be inclined to the left and right in part so that the through-holes through which the fluid passes are configured to penetrate along the repeating direction of the plurality of mountains and valleys.
The method of claim 4, wherein

Heat radiation fins for heat exchangers, characterized in that the inclination angle of the bent end is determined within the range of 20 ~ 45 °.
The method of claim 4, wherein

The bent end formed on each acid is a heat radiation fin for the heat exchanger, characterized in that the inclined direction is formed symmetrically sequentially in the direction in which each acid is a direction in which the fluid flows.
The method of claim 4, wherein

The bent ends are formed such that the bent ends of the left side and the bent ends of the right side are inclined in a symmetrical direction with respect to the center side of the direction in which the peaks and valleys repeat the fluid flow direction. Heat sink fins.
The method of claim 4, wherein

The heat dissipation fin for heat exchangers, characterized in that the plurality of mountains and valleys are formed to be inclined in the fluid inflow direction or the flow direction.
The method of claim 8,

The inclination angle formed by the plurality of peaks and valleys is determined in the range of 10 to 30 ° and the inclination angle of each bent end is determined in the range of 20 to 45 ° range.