KR101632954B1 - Honeycomb-shaped border of a disc-type heat exchanger - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a disk type heat exchanger having a honeycomb-shaped rim, and more particularly, to a disk type heat exchanger in which a corrugated portion of a heat exchanger plate is multi- It is possible to further improve the durability of the heat exchanger by virtue of the occurrence of deformation and the rigidity of the edges of the weak disk type heat exchanger, and the outer edge of the heat exchanger plates is brazed with a strong four- Pressure, high pressure applied to the inside of the heat exchanger can be increased, and a structure suitable for a high-pressure heat exchanger can be obtained. Thus, the quality of the product is improved, safety and reliability are improved, and the heat exchange plates are stacked in multi- Wherein the outer edge of the heat exchanger is a curved hexagonal Type honeycomb structure to minimize damage due to structural rigidity and external impact force, thereby preventing damage to the heat exchanger itself and prolonging the service life of the device.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a disk type heat exchanger having a honeycomb-

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a disk type heat exchanger having a honeycomb-shaped rim, and more particularly, to a disk type heat exchanger in which a corrugated portion of a heat exchanger plate is multi- It is possible to further improve the durability of the heat exchanger by virtue of the occurrence of deformation and the rigidity of the edges of the weak disk type heat exchanger, and the outer edge of the heat exchanger plates is brazed with a strong four- Pressure, high pressure applied to the inside of the heat exchanger can be increased, and a structure suitable for a high-pressure heat exchanger can be obtained. Thus, the quality of the product is improved, safety and reliability are improved, and the heat exchange plates are stacked in multi- Wherein the outer edge of the heat exchanger is a curved hexagonal Type honeycomb structure to minimize damages due to structural rigidity and external impact to prevent damages to the heat exchanger itself and to prolong the lifetime of the device, Lt; / RTI >

Generally, a disk type heat exchanger has a structure in which a first type A heat transfer plate having a certain pattern of heat transfer channels and a second type heat transfer plate of a B type are laminated in a multi-stage manner, and a heat transfer path layer between the heat transfer plates formed at this time forms a heating fluid The structure is the simplest in structure, and is small and light in weight and has excellent heat exchange efficiency, and is widely used in an evaporator, a preheater, a condenser, and the like of a boiler or a freezing device.

The disk type heat exchanger will be briefly described below.

The heat exchanger according to the related art has a pair of first and second heat transfer plates joined to each other to form a heat exchange plate, and the heat exchange plates are laminated in multiple stages. A plurality of heating or heating heat transfer channels are connected to the flow holes provided on both sides of the heat exchange plate.

(Ar) welding (W) along the outer periphery of the edge portion of the heat exchange plate, and is then closed.

However, in the case of argon welding of the heat exchange plate, when the base material is thin, the edge portion is warped or deformed by heat, and there is a drawback that it melts very badly. The edge joint portion of the heat transfer plate is very fragile, Problems frequently occur.

As a disk type heat exchanger according to the related art, there is a disk type heat exchanger of Korean Patent Application No. 1999-24440. However, since the first heat conductive plate 10a and the second heat conductive plate 10 are welded along the outer edges of the first heat conductive plate 10a and the second heat conductive plate 10a, heat distortion due to welding heat and a springback phenomenon of the heat conductive plate itself, And the first and second heat transfer plates are separated from each other, thereby causing pulsation as well as pulsation in the flow of the fluid. Further, it causes breakage and acts as a main cause of pressure leakage and leakage, There is a problem such as the explosion of the flame.

Particularly, since the edge joints of the heat exchange plates are bonded with a width of 3 mm or less on average, when the test pressure acts on the inside of the heat exchanger during leakage inspection, the heat exchanger expands and the distance between the heat transfer plate and the heat transfer plate becomes distant, For example, in the case of a 700RT class large-scale heat exchanger, even with a test pressure of 2 kg / cm 2, a large explosion corresponding to the internal volume was caused, and the like The risk of safety accidents is serious and urgent improvement is needed.

When the heat exchange plate is joined by welding, only the visible portion, that is, only the outer edge portion of the heat exchanger can be joined, resulting in poor bonding properties, resulting in thermal deformation due to the heating of the base material, Impurities, foreign substances, etc. may enter the heat exchanger and cause serious damage.

Or a 'joining structure and a joining method of a heat exchange plate' of Korean Patent Application No. 2004-16961, and a bending portion bent in a multi-stage press at the rim of the heat transfer plate is formed, and a detailed description thereof will be omitted do.

On the other hand, in the above-described prior art, a bending portion is formed by bending a rim of the heat transfer plate through a plurality of steps.

However, when a high pressure is applied to the inside of the heat exchanger, the outer edge is weak, which is unsuitable for a high-pressure heat exchanger. In addition, the incidence of defects increases and leakage frequently occurs. That is, there is a problem that the rim portion exposed to the outside of the heat exchanger is damaged by the external impact force or the structure, and is crushed or broken to increase the risk of leakage.

Korean Patent Publication No. 10-0334061 Korean Patent Registration No. 10-0560165

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art,

The corrugated portion of the edge of the heat exchange plate is constituted by a disk type heat exchanger which is reinforced by a quadruple in which the heat exchange plate is overlapped in multiple layers so that the edge portion of the disk type heat exchanger can be firmly reinforced, The durability can be further improved and the outer edge portion of the heat exchanging plates can be brazed by four layers so that the airtightness is excellent and the high pressure applied to the inside of the heat exchanger can be increased. And it is an object of the present invention to provide a disk-type heat exchanger having a honeycomb-shaped rim with excellent quality, safety and reliability of products.

In addition, the present invention has a hexagonal honeycomb structure in which the outer edge of the brazed heat exchanger is curved so as to be laminated in multiple stages by stacking the heat exchange plates in a multi-stage structure, thereby minimizing damage due to structural rigidity and external impact force, Type heat exchanger having a honeycomb-shaped rim capable of preventing damage to the apparatus itself and significantly prolonging the lifetime of the apparatus.

In addition, the present invention is characterized in that the brazing filler for brazing is composed of copper or copper alloy whose main material is copper, and titanium or nickel alloy for preventing corrosion, so that the corrosion resistance is excellent, the life can be prolonged, Another object of the present invention is to provide a disc-type heat exchanger having an excellent honeycomb-shaped rim that can greatly enhance the performance of a heat exchanger and greatly improve the performance of the heat exchanger.

In order to achieve the above object, the present invention provides a heat exchanger comprising a first heat transfer plate and a second heat transfer plate, which are formed of a disc or a rudder plate and have at least one fluid hole formed therein, A disc type heat exchanger in which a fluid transfer space is formed inside each of the heat exchangers,

Wherein the heat exchange plate has a corrugated portion formed along an outer edge portion thereof, and the corrugated portion is formed in a honeycomb shape so as to provide an area of mutual contact, thereby facilitating brazing and joining. The disk type heat exchanger having a honeycomb- .

As described above, in the disk type heat exchanger having the honeycomb-shaped rim of the present invention, the corrugated portion of the edge of the heat exchange plate is constituted by a quadruple-reinforced disk type heat exchanger in which a plurality of heat exchange plates are overlapped, It is possible to further improve the durability of the heat exchanger by virtue of the occurrence of deformation and the rigidity of the edges of the weak disk type heat exchanger, and the outer edge of the heat exchanger plates is brazed with a strong four- It is possible to increase the pressure of the high pressure acting on the inside and to have a structure suitable for the high-pressure heat exchanger. Thus, there is an effect of improving the product quality, safety and reliability.

In addition, the present invention has a hexagonal honeycomb structure in which the outer edge of the brazed heat exchanger is curved so as to be laminated in multiple stages by stacking the heat exchange plates in a multi-stage structure, thereby minimizing damage due to structural rigidity and external impact force, It is possible to prevent damage to itself and significantly extend the service life of the device.

In addition, the present invention is characterized in that the brazing filler for brazing is composed of copper or copper alloy whose main material is copper, and titanium or nickel alloy for preventing corrosion, so that the corrosion resistance is excellent, the life can be prolonged, The performance of the heat exchanger is remarkably improved, and the performance of the heat exchanger is remarkably improved.

1 is a plan view of a disk type heat exchanger having a honeycomb-shaped rim according to a preferred embodiment of the present invention,
FIG. 2 is a cross-sectional view showing the AA portion of FIG. 1,
3 is a side sectional view showing the BB portion of FIG.

The present invention has the following features in order to achieve the above object.

The present invention relates to a method of manufacturing a heat exchanger in which a first heat transfer plate and a second heat transfer plate, which are formed of a disc or a rudder plate and in which one or more fluid holes are formed, In the heat exchanger of the disc type,

The laminated heat exchange plate has a corrugated portion formed along the outer edge portion, and the corrugated portion is formed in a honeycomb shape so as to provide an area of mutual contact, thereby facilitating brazing.

The present invention having such characteristics can be more clearly described by the preferred embodiments thereof.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Before describing in detail several embodiments of the present invention with reference to the accompanying drawings, it is to be understood that the present invention is not limited to the details of construction and the arrangement of components shown in the following detailed description or illustrated in the drawings will be. The invention may be embodied and carried out in other embodiments and carried out in various ways. It should also be noted that the device or element orientation (e.g., "front," "back," "up," "down," "top," "bottom, Expressions and predicates used herein for terms such as "left," " right, "" lateral," and the like are used merely to simplify the description of the present invention, Or that the element has to have a particular orientation. Also, terms such as " first "and" second "are used herein for the purpose of the description and the appended claims, and are not intended to indicate or imply their relative importance or purpose.

Therefore, the embodiments described in this specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and do not represent all the technical ideas of the present invention. Therefore, It is to be understood that equivalents and modifications are possible.

FIG. 1 is a plan view showing a disk type heat exchanger having a honeycomb-shaped rim according to a preferred embodiment of the present invention, FIG. 2 is a cross-sectional view showing the AA portion of FIG. 1, Sectional view.

As shown in FIGS. 1 to 3, a disk type heat exchanger having a honeycomb-shaped rim of the present invention is made up of at least one or more heat exchange plates 10. The heat exchanger 10 includes a plurality of serpentine curved tubes 13 , A first heat transfer plate (10a) having a transfer space (12) through which fluid is transported in a staggered manner,
The second heat transfer plates 10b having the transfer spaces 12a through which the fluid is conveyed in a zigzag manner by the serpentine curved pipe 13a in which a plurality of sheets are stacked are alternately laminated in multiple stages and brazed, A transfer space is alternately formed between the first heat transfer plate 10a and the second heat transfer plate 10b. Brazing is performed between the first and second heat conductive plates 10a and 10b. The transfer spaces 12 and 12a are connected to both fluid holes 11.

Here, the laminated heat exchange plate 10 has a corrugated portion 20 formed along the outer edge portion thereof, and the corrugated portion 20 is formed in a honeycomb shape so that mutual contact areas are formed, thereby facilitating brazing.

In the disk type heat exchanger according to the present invention, the corrugated portion 20, which is the outer circumferential surface of the heat exchange plate 10 bonded in the multi-stage as described above, has a lattice-shaped honeycomb structure and is extremely durable and durable.

More specifically, the corrugated portion 20 of the heat exchange plate 10 has a honeycomb structure in which the first heat transfer plate 10a and the second heat transfer plate 10b are bonded in a quadruple manner. This is because the second heat transfer plates 10b formed in the same shape as the first heat transfer plates 10a are overlaid and brazed on the upper and lower outer surfaces of the first heat transfer plates 10a joined by brazing, The portion 20 is further strengthened and the durability is greatly improved.

As described above, the first and second heat transfer plates 10a and 10b are laminated and brazed in multiple stages, and the corrugation 20 of the heat exchange plates 10 is joined together by brazing to join the heat exchange plates 10 It is possible to omit a separate process for simplifying the manufacturing process, as well as to significantly improve productivity.

In the heat exchanger, the first and second heat transfer plates 10a and 10b are formed by laminating the first and second heat transfer plates 10a and 10b to have a honeycomb structure. The corrugation 20 is bent in a smooth curved line and joined to form a rhombic lattice structure having curved corners And the corrugated portion 20 expands the contact area with a gentle curve, thereby enhancing the bonding property of the brazing, thereby making it firm. In this case, the outer circumferential surface of the heat exchange plate 10 becomes a hexagonal honeycomb structure having curved corners, so that the durability can be further improved.

As described above, the disk type heat exchanger of the present invention is more rigid and durable through the lattice-shaped honeycomb structure of the corrugation 20, so that the pressure acting inside the heat exchanger can be increased, And the life of the device can be remarkably prolonged.

In addition, it is preferable that the corrugation 20 of the present invention is formed by a general mold and press working, and this is a processing method suitable for improving productivity in processing into a disk type heat exchange plate. Also, the brazing filler (BF) is also pressed by the same method as the heat transfer plate to form the corrugated portion.

The corrugated portion 20 may be formed by a separate forming process. For example, the corrugated portion 20 may be formed by passing through a forming roller having a shape corresponding to the corrugated portion 20, You may. At this time, it is preferable that the first and second heat transfer plates 10a and 10b are superimposed and simultaneously formed.

2, the refrigerant flows through the corrugated portion 20, the central portion of the refrigerant flows through the corrugated portion 20, and the refrigerant is discharged through the corrugated portion 20 on the opposite side. There is no separate technology because it is equipped.

10: Heat exchange plate 10a: First heat transfer plate
10b: second heat transfer plate 11: fluid hole
12: transfer space 20:

Claims (3)

A first heat transfer plate 10a and a second heat transfer plate 10b which are formed of a disc or a rudder plate and in which one or more fluid holes 11 are formed are laminated in multiple stages to form a heat exchange plate 10 by brazing, A disk type heat exchanger in which a fluid transfer space (12) is formed inside each layer of a plate (10)
The laminated heat exchange plate 10 has a corrugation 20 formed along an outer edge thereof,
The corrugated part 20 includes a first heat transfer plate 10a having a conveyance space 12 through which a fluid is conveyed in zigzag by a serpentine curved pipe 13 having a plurality of corrugated sheets 13 stacked thereon, The second heat transfer plate 10b having the transfer space 12a in which the fluid is zigzag transferred by the first and second heat transfer plates 13a and 13a is formed in the same shape so as to overlap the upper and lower sides. Is formed in a hexagonal shape so as to be joined to the corrugated portion (20) of the heat transfer plates (10a, 10b) so as to have a bonding structure of four and increase the contact area with each other to facilitate brazing bonding. Of the heat exchanger.
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