KR101087152B1 - Apparatus for manufacturing inner fin of heat exchanger - Google Patents

Abstract

An object of the present invention is to provide a laminated heat exchanger and an inner fin manufacturing apparatus for improving the inner fin to promote turbulence to maximize heat transfer and to facilitate the assembly of the inner fin in the tube. ,

In order to achieve the above object, the present invention includes at least two or more partition beads for dividing and partitioning a fluid flow path into at least two or more, and also having a tank part which flows in and out of a heat exchange medium at an upper portion or a lower portion thereof. A tube formed by jointly joining a pair of plates of the same shape; Inner pins are respectively accommodated in the plurality of fluid passages, bent in a zigzag, and have a plurality of pin members having turbulence generating portions on the sidewalls, and a connecting member positioned between the partition beads and connecting the plurality of pin members. Characterized in that provided.

Inner pin manufacturing apparatus of the present invention for achieving the above object, the first screw portion and the first flat portion having a constant pitch alternately formed on the outer circumferential surface along the axial direction, and the first installed rotatably via a rotating shaft The second roller and the second screw portion which is engaged with the first screw portion and in contact with the first flat portion, and alternately formed on the outer circumferential surface along the axial direction and rotatably installed through the rotating shaft, A pair of inner pin forming means is formed between the first flat portion and the second screw portion while the pin member is bent in a zigzag shape while the inner pin material passes, and a connection member is formed between the first flat portion and the second flat portion. and; And a turbulence generating portion forming means formed on an inclined surface between the peaks and valleys of the first and second threaded portions so that the inner pin material passes between the first and second rollers to form a turbulent flow generating portion. .

Tube, inner pin, manufacturing

Description

Inner fin manufacturing apparatus of laminated heat exchanger {Apparatus for manufacturing inner fin of heat exchanger}

1 is a perspective view of a typical laminated heat exchanger.

Figure 2 is a cross-sectional view of the tube configuration of a conventional heat exchanger built-in inner fins.

Figure 3 is an exploded perspective view of the tube showing a state in which the inner fin of the present invention is built out of the laminated heat exchanger according to the present invention.

Figure 4 and Figure 5 is a cross-sectional view of the tube showing a state in which the inner pin of the present invention is embedded.

6 and 7 are enlarged views of the leader line “A” portion shown in FIG. 3, and partially enlarged views showing the shape of the turbulence generating portion.

8 is an external perspective view of an inner pin manufacturing apparatus according to the present invention.

9 is a plan view of FIG. 8.

10 is a side view of FIG. 8;

11 is a view schematically showing the configuration of a turbulence generating portion forming means for forming a turbulence generating portion of the present invention.

(Description of the code for the main part of the drawing)

100: tube

110,120: Plate                 

111,121: Fluid passage

113,123: Compartment Bead

112,122: tank section

200: inner pin

210: pin member

211: sidewall

220: connecting member

213,215: Louver

400: a set of inner pin forming means

410: first roller

411: first screw portion

412: first flat part

420: second roller

421: second screw portion

422: second flat portion

600: turbulence generating unit forming means

500: another set of inner pin forming means

510: third roller

520 fourth roller

The present invention relates to a laminated heat exchanger and an inner fin manufacturing apparatus thereof, and more particularly, to improve the inner fin to promote turbulence to maximize heat transfer and to facilitate the assembly of inner fins in a tube. It relates to a laminated heat exchanger and an inner fin manufacturing apparatus thereof.

The heat exchanger is installed on the flow path of the cooling and heating system so as to heat the working fluid flowing in the flow path with the external air to cool down a predetermined space.

As an example of such a heat exchanger 40, a pair of plates 41 and 42 are brazed to each other to form a fluid passageway with a gap between the inner surfaces of the plates 41 and 42. In addition, a plurality of tubes (45) formed at a predetermined interval and provided with a supply side tank portion 43 and a discharge side tank portion 44 of the heat exchange medium on the upper or lower portion of the plate (41, 42), A supply / discharge manifold installed between the 45 to supply and discharge the heat dissipation fin 50 to increase the heat dissipation area and the heat exchange medium provided in the supply side tank portion 43 and the discharge side tank portion 44, respectively. (46) (47).

Meanwhile, as shown in FIG. 2, the tube 45 has the same shape as the plate 41 having partition beads 41a for dividing the fluid passages 42a and 42b into which the working fluid flows. (42) A pair is matched together and is comprised.

Inner fluid passages 42a and 42b of the tube 45 have inner pins 49 for allowing a working fluid to flow in a turbulent shape when passing through the tube 45.                         

According to the conventional heat exchanger configured as described above has the following problems.

First, the partition beads 41a are formed in the center of the plates 41 and 42 constituting the tube 45. In addition, two inner pins 49 also correspond to the two fluid passages 42a and 42b. There is a problem in that the inner pin 49 itself flows in the fluid passages 42a and 42b after the built-in installation is completed, which hinders the flow of the working fluid.

Second, since the two inner pins 49 are separately embedded in the fluid passages 42a and 42b, there is also a problem that the inner pins are not accurately positioned in the fluid passage.

Third, the inner pin 49 of the prior art has a problem that can not maximize the heat transfer because it does not promote turbulence because it is formed only in a waveform without a louver.

The present invention has been made to solve the above problems, laminated heat exchange to improve the inner pin to promote turbulence to maximize heat transfer and to facilitate the assembly of the inner pin in the tube The purpose is to provide a group.

The present invention was created to solve the above problems, to facilitate the turbulence to maximize heat transfer and to facilitate the assembly of the inner heat exchanger of the laminated heat exchanger produced to facilitate the assembly in the tube It aims to provide.

In order to achieve the above object, the present invention includes at least two or more partition beads for dividing and partitioning a fluid flow path into at least two or more, and also having a tank part which flows in and out of a heat exchange medium at an upper portion or a lower portion thereof. A tube formed by jointly joining a pair of identically shaped plates; a plurality of fin members each housed in the plurality of fluid passages, bent in a zigzag and having turbulence generating portions on the sidewalls, and located between the partition beads. And an inner pin as a connection member for connecting the plurality of pin members.

Inner pin manufacturing apparatus of the present invention for achieving the above object, the first screw portion and the first flat portion having a constant pitch alternately formed on the outer circumferential surface along the axial direction, and the first installed rotatably via a rotating shaft The second roller and the second screw portion which is engaged with the first screw portion and in contact with the first flat portion, and alternately formed on the outer circumferential surface along the axial direction and rotatably installed through the rotating shaft, A pair of inner pin forming means is formed between the first flat portion and the second screw portion while the pin member is bent in a zigzag shape while the inner pin material passes, and a connection member is formed between the first flat portion and the second flat portion. and; And a turbulence generating portion forming means formed on an inclined surface between the peaks and valleys of the first and second threaded portions so that the inner pin material passes between the first and second rollers to form a turbulent flow generating portion. .

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

Figure 3 is an exploded perspective view of a tube showing a state in which the inner fin of the present invention is built in the configuration of the laminated heat exchanger according to the present invention, Figures 4 and 5 of the tube showing a state in which the inner fin of the present invention is embedded 6 and 7 are enlarged views of the leader line “A” portion shown in FIG. 3, which is a partially enlarged view showing the shape of the turbulence generating portion, and FIG. 8 is an external perspective view of the manufacturing apparatus of the inner pin according to the present invention. 9 is a plan view of FIG. 8, FIG. 10 is a side view of FIG. 8, and FIG. 11 is a view schematically showing the configuration of the turbulence generating unit forming means for forming the turbulence generating unit of the present invention.

The heat exchanger according to the present invention is the same as the laminated heat exchanger described in the prior art, but the difference is a change in the structure of the tube including the inner fin.

More specifically, at least two compartment beads 113 and 123 for dividing the fluid passages 111 and 121 into which the fluid flows are divided into at least two, and the inflow and outflow of the heat exchange medium at the top or the bottom thereof. It is applied to a stacked heat exchanger formed by stacking a plurality of tubes 100 formed by joining a pair of identically shaped plates 110 and 120 having tank portions 112 and 122.

3, 4, and 5, each of the plurality of fluid passages 111 and 121 is accommodated in each other and bent in a zigzag form and turbulent in one / both walls 211 and 211a. An inner pin 200 is provided between a plurality of pin members 210 having a generator and a connection member 220 positioned between the partition beads 113 and 123 to connect the plurality of pin members 210. It is.

Here, the turbulence generating unit, as shown in Figure 6 and 7, consists of a plurality of louvers (213, 215) formed to change the turbulent flow by increasing the frictional resistance of the fluid.

The louvers 213 and 215 are formed on at least one sidewall of the sidewalls 211 and 211a, as shown in FIGS. 4 and 5.

In more detail, the louver 213 is formed to be inclined with respect to the side walls 211 and 211a while being cut to open the opening 212 through which the fluid can enter / exit into the side walls 211 and 211a. (See FIG. 6)

Meanwhile, as shown in FIG. 7, the louver 215 is bored to form an opening 214 through which the fluid can flow in and out, and is formed to be offset by a predetermined distance from the side walls 211 and 211a. Can be.

Since the inner pin 200 configured as described above is integrally formed through the connecting member 220, the assembly bead 113 of the plate 110 and 120 when the connecting member 220 is assembled into the tube. When it is seated on the 123, the remaining pin members 210 are naturally seated in the fluid passages 111 and 121 of the plate 110, 120 can be assembled very easily.

Next, a device for manufacturing the inner pin 200 of the present invention will be described.

8 to 11, the inner pin manufacturing apparatus of the present invention comprises a pair of inner pin forming means 400 and turbulence generating unit forming means 600 largely.

The pair of inner pin forming means 400 may be formed on the outer circumferential surface of the first screw portion 411 and the first flat portion 412 having a constant pitch alternately along the axial direction, and may also be rotated through the rotation shaft 413. The first roller 410, and the second screw part 421 and the second flat part 422, which are engaged with the first screw part 411 and are interviewed with the first flat part 412, are alternately shafted. The second roller 420 is formed on the outer circumferential surface along the direction and is rotatably installed through the rotation shaft 423.

In addition, an inner pin material 200 passes between the first and second rollers 410 and 420, and the pin member 210 is bent in a zigzag shape between the first and second threaded portions 411 and 421. ) Is formed and a connecting member 220 is formed between the first flat portion 412 and the second flat portion 413.

On the other hand, the turbulence generating portion forming means 600 is the first and second screw portion 411 so that the turbulence generating portion is formed while the inner pin material 200 passes between the first and second rollers 410 and 420. 421 is formed on the inclined surfaces 411a and 421a between the peaks and valleys.

As shown in FIG. 11, the turbulence generating unit forming unit 600 protrudes in a predetermined shape on the inclined surface 411a between the peak and the valley of any one of the first and second threaded portions 411 and 421. On the inclined surface 421a between the hill and the valley of the other one of the first and second threaded portions 411 and 421 to which the intaglio portion 411b and the inclined surface 411a on which the intaglio portion 411b are formed are in contact. Consists of a relief portion 421b formed to be inserted into the intaglio portion 411b.

Here, it is noted that the turbulence generating unit forming unit 600 can be variously changed according to the shape of the turbulent generating unit.

Meanwhile, another set of inner pin forming means 500 is further provided at a position spaced a predetermined distance from the set of inner pin forming means 400.

The other pair of inner pin forming means 500, as shown in Figure 9, the third screw portion 511 and a third pitch having a constant pitch on the outer peripheral surface except the portion corresponding to the turbulence generating portion forming means 600 The third flat part 512 is alternately formed on the outer circumferential surface along the axial direction, and is engaged with the third roller 510 and the third threaded part 511 that are rotatably installed via the rotation shaft 513, and the third Fourth roller part 521 and the fourth flat part 522 which are interviewed with the three flat parts 512 are alternately formed on the outer circumferential surface along the axial direction, and are provided to be rotatable via the rotation shaft 523. 520).

The pair of inner pin forming means 500 passes through the set of inner pin forming means 400 and serves to reprocess the inner pin material 200 that is primarily processed.

The pitch of the third and fourth threaded portions 511 and 521 of the other pair of inner pin forming means 500 is formed to be smaller than the pitch of the first and second threaded portions 411 and 421. This is to ensure that the pin pitch of the pin 200 is less than the state of the primary processing in a set of inner pin forming means 400.

That is, to make the pin density more dense.

Referring to the operation of the present invention configured as described above are as follows.

First, when the inner pin material 200 is introduced between the first roller 410 and the second roller 420 constituting a set of inner pin forming means 400, the first and second rollers are engaged with each other and rotated. The inner pins of the primary processing state folded in the zigzag shape while passing through the 410 and 420 are manufactured.                     

At this time, the inner pin 200 by the turbulence generating unit forming means is to form a louver constituting the turbulence generating unit.

As described above, the inner pins which are primarily processed may be stopped midway depending on the application of the product.

However, in order to produce inner pins having a more dense pin density, the inner pin material 200 passing through a set of inner pin forming means 400 is replaced with another set of inner pin forming means 500. Pass it through.

Here, the louver constituting the turbulence generating portion of the inner pin is processed only when passing through the set of inner pin forming means 400.

Therefore, when passing through the third and fourth rollers constituting the other pair of inner pin forming means 500, the rework of the louvers constituting the turbulence generating portion is not made.

As described above, according to the present invention, by improving the inner pin to promote turbulence to maximize heat transfer, and to facilitate the assembly of the inner pin in the tube, to promote heat transfer by promoting turbulence In addition to being able to maximize the assembly can be conveniently carried out in the tube.

Claims (8)

delete delete delete delete delete A first roller 410 having a predetermined pitch and a first roller 410 alternately formed on the outer circumferential surface along the axial direction and rotatably installed through the rotation shaft 413; The second screw part 421 and the second flat part 422, which are engaged with the first thread part 411 and are interviewed with the first flat part 412, are alternately formed on the outer circumferential surface along the axial direction, and the rotation shaft 423 A pin member 210 that is bent in a zigzag shape between the first and second threaded portions 411 and 421 while the inner pin material 200 passes through the second roller 420 installed to be rotatable through a). And a pair of inner pin forming means 400 in which a connection member 220 is formed between the first flat portion 412 and the second flat portion 413; An inclined surface between the peaks and valleys of the first and second threaded portions 411 and 421 such that the inner pin material 200 passes between the first and second rollers 410 and 420 to form a turbulence generating portion. 411 and 421a are provided with a turbulence generating unit forming means 600, The third screw portion 511 and the third flat portion 512 having a constant pitch on the outer circumferential surface except for the portion corresponding to the turbulence generating portion forming means are alternately formed on the outer circumferential surface along the axial direction and mediated through the rotation shaft 513. The third roller 510 and the fourth screw part 521 and the fourth flat part 522 which are engaged with the third screw part 511 and are interviewed with the third flat part 512 are rotatably installed. Inner pin material alternately formed on the outer circumferential surface along the axial direction and made of a fourth roller 520 rotatably installed through the rotation shaft 523 to pass through the set of inner pin forming means 400 to be primarily processed. Further provided with another set of inner pin forming means 500 for reprocessing (200), The pitch of the third and fourth threaded portions 511 and 521 of the pair of inner pin forming means 500 is smaller than the pitch of the first and second threaded portions 411 and 421. Inner fin manufacturing apparatus of the laminated heat exchanger made of. delete The method of claim 6, The turbulence generating unit forming means 600, An intaglio portion 411b protruded in a predetermined shape on the inclined surface 411a between any one of the first and second threaded portions 411 and 421, and The inclined portion 411b is inserted into the inclined portion 411b on the inclined surface 421 between the other hill and the valley among the first and second screw portions 411 and 421 to which the inclined surface 411a on which the intaglio portion 411b is formed is in contact. Inner fin manufacturing apparatus of the laminated heat exchanger, characterized in that the formed embossed portion (421b).

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