KR20100099805A - A heat exchanger with improved drainage efficiency - Google Patents

Abstract

PURPOSE: A heat exchanger is provided to enable a structure for discharging the condensed water to be mounted without a separate connecting operation. CONSTITUTION: A heat exchanger comprises a plurality of tubes, fins, an upper header tank, a lower header tank, and a condensed-water discharging clip(200). The condensed-water discharging clip comprises a support(210), an extended part(220), a fixed part(230), and a protruded support(250). The support is formed on the lower end of the lower header tank. The extended part is extended from the support along the length of the lower header tank. The fixed part is connected to the extended part and is fixed to the leading end of the tube. The protruded support is protruded inward along the support, the extended part, and the fixed part to make contact with the lower header tank.

Description

Heat exchanger with improved drainage efficiency

The present invention relates to a heat exchanger having a condensate discharge clip, and to a condensate accumulated in the bottom of the heat exchanger to form a drainage space by spaced apart from the header tank by using a protruding support.

1 is a perspective view showing a state in which condensate is accumulated in a lower part of a conventional heat exchanger, FIG. 2 is a perspective view of a condensate discharger installed in a conventional heat exchanger, and FIG. 3 is a perspective view of a state in which a guide plate is installed in a conventional heat exchanger. .

Referring to FIG. 1, a conventional heat exchanger includes a plurality of tubes 11 having flow passages therein and arranged at regular intervals, fins 12 interposed between the tubes 11, and both ends of the tubes 11. The lower header tank 13 and 14 are formed. Hereinafter will be described using an evaporator using a heat exchanger.

The conventional evaporator takes much heat from the surroundings during operation, and the surface of the evaporator is lower in temperature than the surroundings, so that the surrounding water vapor condenses to form condensed water, which is gravity driven downward through the lower header tank 14. Discharged. However, the evaporator configured as described above is a condensate pool which is a space between the bottom of the tube 11 and the fin 12 and the lower header tank 14 without condensate being completely discharged below the lower header tank 14 at the end of operation. In the space 20, the surface tension acting between the condensate holding space 20 and the condensate is greater than the gravity acting on the condensate, so that a part of the condensate remains in the condensate holding space 20. The remaining condensate not only prevents the growth of bacteria and the resulting odor, but also hinders air flow and degrades the heat exchange performance of the evaporator and the outside air.

In order to solve the above problems, the heat exchanger illustrated in FIGS. 2 and 3 has been disclosed.

Referring to FIG. 2, the heat exchanger 10 is adjacent to a plurality of tubes 11 communicating with the upper header tank 13 and the lower header tank 14 and the upper and lower header tanks 13 and 14. The pin 12 provided between the tube 11, the fitting portion 31 is provided to be in close contact with the tip of the tube 11 is provided to form a connection portion 32 for connecting the fitting portion 31 It comprises a condensate discharger (30). Therefore, the condensate can be discharged quickly and quickly to maintain hygiene and durability of the heat exchanger.

Referring to FIG. 3, the heat exchanger 10 includes a plurality of tubes 11 having a flow path therein and arranged at regular intervals, fins 12 interposed between the tubes 11, and the tubes 11. And upper and lower header tanks 13 and 14 coupled to both ends, and between the fin 12 and the lower header tank 14, air directed toward the lower header tank 14 through the front part is connected to the tube ( 11) and the fin 12 side and characterized in that the arc-shaped guide plate 40 is installed to drain the condensate generated in the tube 11 and the fin 12 to the outside through the rear portion. The guide plate 40 is installed in a space spaced between the pin 12 and the lower header tank 14 and is fixed to the tube 11 by a tube insertion groove 41. Therefore, the condensate generated in the tube 11 and the fin 12 can be smoothly drained to the outside, and the condensate can be prevented from accumulating in the lower header tank 14.

However, in the case of the heat exchanger 12 disclosed in FIGS. 2 and 3, one fitting portion 31 of the condensate discharger 30 must be inserted one by one between the tubes 11 or the tube insertion groove of the guide plate 40. Since the tube 11 must be fitted to the 41, it is cumbersome, and the work time and manpower are consumed, and thus there is a disadvantage in that productivity is lowered during mass production.

Therefore, water condensate is formed to prevent condensate from accumulating in the header tank, which facilitates the discharge of condensate, prevents the growth of bacteria, solves the odor problem, improves heat exchange performance, and improves the efficiency of production by simply installing it. There is an urgent need to develop a structure for the construction.

The present invention is devised in order to solve the problems as described above is formed with a rib structure in the condensate discharge clip is simply removable and separated from the header tank by using a protruding support to form a drainage space to be collected at the bottom of the heat exchanger It is an object of the present invention to provide a heat exchanger having improved drainage for smooth discharge of condensate.

The present invention includes a plurality of tubes (110) having a flow path therein and arranged at regular intervals; A fin 120 interposed between the tubes 110; Upper and lower header tanks 130 and 140 coupled to both ends of the tube 110; In the heat exchanger 100 comprising a, the support portion 210 formed on the lower end of the lower header tank 140; An extension part 220 extending from both sides of the support part 210 along both sides in a height direction of the lower header tank 140; The fixing part 230 is formed to be connected to the extension portion 220 and the separation distance (n) between the two ends is shorter than the distance (m) between both ends of the support portion 210 to be fixed in close contact with the front end of the tube (110) ; A protruding support part 250 protruding inwardly along the support part 210, the extension part 220, and the fixing part 230 so as to contact the lower header tank 140; It characterized in that it comprises a condensate discharge clip 200 is configured to include.

The present invention is characterized in that the insertion guide portion 240 is formed extending from the fixing portion 230 to the upper end and extending in a direction opposite to the fixing portion 230 in close contact with the tip of the tube 110. .

On the other hand, the present invention is characterized in that the thickness (x) of the condensate discharge clip 200 is smaller than the separation pitch (y) of the tube (110).

The present invention is characterized in that the connecting portion 260 extending in the longitudinal direction of the heat exchanger 100 in the support portion 210 is formed to connect the adjacent condensate discharge clip 200.

In addition, according to the present invention, a drainage hole 261 is formed at the center of the connection part 260, and a groove 262 is formed to connect between the drainage hole 261 and the protruding support part 250 at both ends adjacent to the drainage hole 261. ) Is formed, and the groove 262 is formed to be inclined downward toward the drainage hole 261.

The present invention eliminates the need for a separate joining operation when installing a structure for smoothly discharging condensate formed on the surface and the inside of the evaporator, and reduces the production time and manpower by allowing the structure to be seated on the heat exchanger by the restoring force of the material itself. There is an advantage to increase the efficiency of.

A heat exchanger is a device that transfers heat from a high temperature fluid to a low temperature fluid through heat transfer walls and is used in heaters, coolers, evaporators and condensers.

The evaporator is operated as part of a cooling system together with a compressor, a condenser, and an expansion valve. When the refrigerant gas of low temperature and low pressure is compressed by the compressor, the evaporator becomes a compressed gas of high temperature and high pressure. Is cooled to form a low-temperature high-pressure refrigerant liquid, the refrigerant liquid is sent to the expansion valve, when passing through the small hole of the expansion valve, both the pressure and temperature is lowered to become a low-temperature low-pressure refrigerant liquid, the low-temperature low-pressure refrigerant liquid Moves along the tube of the evaporator, absorbs heat from the surroundings and evaporates to a low temperature low pressure refrigerant gas. At this time, if the hot air of the room is blown by the blower between the tubes of the cold evaporator, the air becomes cold air, and the air is cooled by supplying the air to the room.

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

4 is a front view of the condensate discharger of Embodiment 1 according to the present invention, FIG. 5 is a perspective view of the condensate discharger of Embodiment 1 according to the present invention, and FIG. 6 is a condensate discharger of Embodiment 1 according to the present invention. Fig. 7 is a perspective view of a state in which the condensate discharger of the first embodiment according to the present invention is mounted on a heat exchanger, and Fig. 8 is a front view of the condensate discharger of the second embodiment according to the present invention. 9 is a perspective view of a condensate discharger of Embodiment 2 according to the present invention, FIG. 10 is an enlarged side view of a state in which the condensate discharger of Embodiment 2 is mounted on a heat exchanger, and FIG. 11 is an embodiment according to the present invention. Fig. 12 is a perspective view of the condensate discharger of the third embodiment according to the present invention, and Fig. 13 is a heat exchanger of the condensate discharger of the third embodiment according to the present invention. 14 is a front view of a state in which the condensate discharger of the third embodiment according to the present invention is mounted on a heat exchanger, and FIG. 15 is a perspective view and a major part of the condensate discharger of the fourth embodiment according to the present invention. 16 is a front view of a state in which the condensate discharger of the fifth embodiment according to the present invention is mounted on a heat exchanger, and FIG. 17 is a view of a state in which the condensate discharger of the fifth embodiment according to the present invention is mounted on a heat exchanger. The front view is shown.

Example 1

4 to 7, Embodiment 1 includes a heat exchanger 100 and a condensate discharge clip 200. The heat exchanger 100 is composed of upper and lower header tanks 130 and 140, a tube 110, and a fin 120, and the condensate discharge clip 200 includes a support part 210 and an extension part 220. , The fixing part 230 and the protruding support part 250 may be formed.

Referring to FIG. 7, the heat exchanger 100 includes a header (not shown) having a tube insertion hole (not shown) at one side thereof; An upper header tank 130 and a lower header tank 140 formed by a combination of a tank (not shown) coupled to the header (not shown) to form a heat exchange medium flow path; An inlet pipe (not shown) and an outlet pipe (not shown) provided in the upper header tank 130 or the lower header tank 140, respectively; A tube 110 having both ends fixed to the tube insertion hole (not shown) of the header (not shown) to form a heat exchange medium flow path; And a pin 120 interposed between the tubes 110. Since the heat exchanger 100 is the same as a conventional heat exchanger, a detailed description thereof will be omitted, and hereinafter, an evaporator using a heat exchanger will be described as an example.

4 and 5, the condensate discharge clip 200 includes a support part 210 positioned at a lower end of the lower header tank 140 and the lower header tank 140 upward from the support part 210. Extension portion 220 extending along the side of the formed, connected to the extension 220 is formed and the concave fixed portion 230 formed to be fixed in close contact with the tip of the tube 110, the lower header tank ( 140 includes a protruding support part 250 protruding inwardly along the support part 210, the extension part 220, and the fixing part 230 so as to be in contact with the support part 140. Can be formed. The condensate discharge clip 200 is preferably formed of an elastic member to be detachable to the lower header tank 140 by the restoring force of the material itself.

4 and 5, the support part 210 supports the heat exchanger 100 while supporting the lower end of the lower header tank 140. When the distance between both ends of the support portion 210 is 'm', the distance m between both ends of the support portion 210 may be equal to or greater than the length of the lower end of the lower header tank 140.

4 and 5, the extension part 220 extends along both sides of the support part 210 in the height direction of the lower header tank 140, and the fixing part 230 and the support part ( 210 serves to connect. At the same time, when the fixing part 230 to be described later is attached to and detached from the lower header tank 140, elasticity may be provided by the extension part 220.

4 and 5, the fixing part 230 extends from the extension part 220 and is in close contact with the tip portion of the tube 110 positioned on the lower header tank 140 side. The condensate discharge clip 200 is fixed to the lower header tank 140 by the fixing part 230. When the separation distance between both ends inside the fixing part 230 is 'n', the separation distance n is formed to be smaller than the distance m between both ends of the supporting part (2), so that the lower header tank () It is desirable that the bond is not easily released.

4 to 6, the protruding support part 250 may protrude into the condensate discharge clip 200 along the support part 210, the extension part 220, and the fixing part 230. have. The protruding support part 250 is in close contact with the lower header tank 140 to support the lower header tank 140 and space the gap between the support part 210 and the extension part 220 and the lower header tank 140. It is possible to create a space for the discharge of condensate. A portion of the protruding support part 250 contacting the lower header tank 140 is preferably rounded as shown in FIG. 5.

Example 2

8 to 11, Embodiment 2 includes a heat exchanger 100 and a condensate discharge clip 200. The heat exchanger 100 is composed of upper and lower header tanks 130 and 140, a tube 110, and a fin 120, and the condensate discharge clip 200 includes a support part 210 and an extension part 220. , The fixing part 230, the insertion guide part 240, and the protruding support part 250 may be formed. The heat exchanger 100 and the condensate discharge clip 200 are the same as in the above-described embodiment 1 and will be described below with a focus on the difference between the insertion guide 240 and the protrusion support 250 different from the first embodiment.

8 to 10, the insertion guide part 240 extends from an upper end of the fixing part 230 and faces the direction in which the fixing part 230 is bent so as to be in close contact with the tip portion of the tube 110. It may be formed to be bent in the direction. Accordingly, the extension part 220, the fixing part 230, and the insertion guide part 240 may be formed in an 'S' shape as a whole. The fixing part 230 has a problem that it is difficult to be coupled to the lower header tank 140 because it must be detached to the tip portion of the tube 110 by the elastic force. When the insertion guide portion 240 is formed in a direction opposite to the fixing portion 230 on the top of the fixing portion 230, the separation distance between the insertion guide portion 240, which is a portion that is fitted when combined with the lower header tank 140 Is greater than the separation distance (n) between both ends of the fixing portion can be easily coupled to the lower header tank (140).

8 to 11, the protruding support part 250 is formed to protrude into the condensate discharge clip 200 and passes through the support part 210, the extension part 220, and the fixing part 230. It may also be formed inside the insertion guide unit 240. The same as the protrusion support 250 in the above-described embodiment 1, but when formed in the interior of the insertion guide portion 240, the protrusion support portion 250 formed at the upper end of the insertion guide portion 240 is gradually from the non-projection portion The protrusion may be formed to lead to the protruding support part 250. Therefore, as the protruding support portion 250 gradually protrudes from the fitting portion when the lower header tank 140 is coupled, the coupling between the lower header tank 140 and the condensate discharge clip 200 may be facilitated. .

Example 3

12 to 14, Embodiment 3 includes a heat exchanger 100 and a condensate discharge clip 200. The heat exchanger 100 and the condensate discharge clip 200 are the same as in the above-described embodiment 1 and will be described below with respect to the connecting portion 260 which is different.

12 and 13, the condensate discharge clip 200 may be coupled to surround a lower end of the lower header tank 140. A direction parallel to the longitudinal direction of the lower header tank 140 in the condensate discharge clip 200 may be defined as a thickness 'x' of the condensate discharge clip 200. In addition, the separation pitch which is the distance between adjacent tubes 110 of the heat exchanger 100 may be defined as 'y'. Since the fixing part 230 of the condensate discharge clip 200 is fixed in close contact with the tip of the tube 110, the thickness (x) of the condensate discharge clip 200 is preferably smaller than the separation pitch (y) between the tubes. Do. That is, the thickness (x) of the condensate discharge clip 200 is preferably equal to or smaller than the spacing pitch (y) between the tubes and the range may vary within the range of 10 to 100%.

12 to 14, the connection part 260 may be formed in the longitudinal direction of the heat exchanger 100 at the support part 210. The connection part 260 may connect a plurality of condensate discharge clips 200, and the connection part 260 may be formed to connect the adjacent support parts 210 between each adjacent condensate discharge clip 200. It is preferable.

Example 4

Referring to FIG. 15, Example 4 includes a heat exchanger 100 and a condensate discharge clip 200. The heat exchanger 100 and the condensed water discharge clip 200 are the same as in the first to third embodiments, and will be described below with reference to the drainage hole 261 and the groove 262 which are different from each other.

Referring to FIG. 15, the drain hole 261 may be formed at the center of the connection part 260, and the condensed water discharged through a space spaced between the lower header tank 140 and the condensate discharge clip 200 may be provided. Make the discharge more smooth. The drainage hole 261 may have various shapes such as a rectangle as well as a circular shape. The drainage hole 261 may be formed to penetrate the bottom of the connection part 260.

Referring to FIG. 15, the groove 262 may be formed to be long in the connecting direction by connecting between the protruding support part 250 of the condensate discharge clip 200 adjacent to both ends and the drain hole 261. The groove 262 is preferably an intaglio groove having a hollow semi-cylindrical shape, but may be formed as an intaglio groove of various shapes. In addition, the groove 262 is to discharge the condensed water discharged through the space spaced between the lower header tank 140 and the condensate discharge clip 200 to the drainage hole 261 to improve drainage. In order to gradually increase in depth from the groove 262 connected to the protruding support part 250 side to the groove 262 connected to the drainage hole 261 side, it is preferably formed to be inclined downward.

Example 5

16 and 17, Example 5 includes a heat exchanger 100 and a condensate discharge clip 200. The heat exchanger 100 and the condensate discharge clip 200 are the same as in the first to fourth embodiments described above, and will be described below based on differences.

Referring to FIGS. 16 and 17, the separation pitch between each condensate discharge clip 200 in a state where the condensate discharge clip 200 is mounted on the heat exchanger 100 may be defined as 'z'. The spacing pitch y between the tubes 110 has been described above. The fixing part 230 of the condensate discharge clip 200 is preferably fixed in close contact with the tip of the tube 110, so that the condensate discharge clip 200 is coupled to each tube 110, the tube 110 The relationship between the separation pitch (y) and the separation pitch (z) between the condensate discharge clip 200 is y = z. As shown, when the fixing part 230 of the condensate discharge clip 200 is not coupled to each tube 110 but alternately coupled to the odd-numbered or even-numbered tube 110 from one side end, the separation between the tubes 110 is performed. The relationship between the pitch y and the spaced pitch z between the condensate discharge clip 200 is 2 * y = z. Similarly, as shown, when the fixing portion 230 of the condensate discharge clip 200 is coupled to each other, including between the adjacent tube 110, instead of the tube 110 (y) ) And the separation pitch z between the condensate discharge clip 200 is 0.5 * y = z. Therefore, the separation pitch (z) between the condensate discharge clip 200 may be a multiple of the separation pitch (y) of the tube (110), the range may be variously formed within the range of the free water.

The technical idea should not be construed as being limited to the above-described embodiment of the present invention. Various modifications may be made at the level of those skilled in the art without departing from the spirit of the invention as claimed in the claims. Therefore, such improvements and modifications fall within the protection scope of the present invention as long as it is obvious to those skilled in the art.

1 is a perspective view showing a state in which condensed water is accumulated in a lower part of a conventional heat exchanger.

2 is a perspective view of a state in which a condensate discharger is installed in a conventional heat exchanger.

3 is a perspective view of a state in which a guide plate is installed in a conventional heat exchanger.

4 is a front view of the condensate discharger of Embodiment 1 according to the present invention;

5 is a perspective view of a condensate discharger of Embodiment 1 according to the present invention;

6 is an enlarged side view of a state in which the condensate discharger of Embodiment 1 is mounted on a heat exchanger;

7 is a perspective view of a state in which the condensate discharger of Embodiment 1 is mounted on a heat exchanger;

8 is a front view of the condensate discharger of Example 2 according to the present invention;

9 is a perspective view of a condensate discharger of Embodiment 2 according to the present invention;

10 is an enlarged side view of a state in which the condensate discharger of Embodiment 2 according to the present invention is mounted on a heat exchanger;

11 is a perspective view of a state in which the condensate discharger of Embodiment 2 according to the present invention is mounted on a heat exchanger.

12 is a perspective view of a condensate discharger of Embodiment 3 according to the present invention;

Fig. 13 is a perspective view of a state in which the condensate discharger of Embodiment 3 of the present invention is mounted on a heat exchanger.

14 is a front view of a state in which the condensate discharger of Example 3 according to the present invention is mounted on a heat exchanger.

15 is a perspective view and an enlarged view of a main part of the condensate discharger of Embodiment 4 according to the present invention;

Fig. 16 is a front view of a state in which the condensate discharger of Embodiment 5 of the present invention is mounted on a heat exchanger.

Fig. 17 is a front view of the condensate discharger of the fifth embodiment according to the present invention with a heat exchanger mounted thereon;

<Description of the symbols for the main parts of the drawings>

10: heat exchanger

11 tube 12 pin

13: upper header tank 14: lower header tank

20: condensate pool

30: condensate discharger

31: fitting part 32: connecting part

40: guide plate 41: tube insertion groove

100: heat exchanger

110: tube 120: pin

130: upper header tank 140: lower header tank

200: condensate discharge clip

210: support portion 220: extension portion

230: fixing part 240: insertion guide

250: projecting support 260: connection

261: drain hole 262: groove

m: Distance between both ends of supporting part n: Distance between both ends of fixing part

x: Thickness of the condensate discharge clip y: Spacing pitch between tubes

z: pitch of separation between condensate drain clips

Claims (5)

A plurality of tubes 110 having a flow path therein and arranged at regular intervals; A fin 120 interposed between the tubes 110; Upper and lower header tanks 130 and 140 coupled to both ends of the tube 110; In the heat exchanger 100 comprising a, Supporting portion 210 formed at the lower end of the lower header tank 140; An extension part 220 extending from both sides of the support part 210 along both sides in a height direction of the lower header tank 140; The fixing part 230 is formed to be connected to the extension portion 220 and the separation distance (n) between the two ends is shorter than the distance (m) between both ends of the support portion 210 to be fixed in close contact with the front end of the tube (110) ; A protruding support part 250 protruding inwardly along the support part 210, the extension part 220, and the fixing part 230 so as to contact the lower header tank 140; Heat exchanger with improved drainage, characterized in that it comprises a condensate discharge clip 200 is configured to include. The method of claim 1, Improved drainage, characterized in that the insertion guide portion 240 is formed extending from the fixing portion 230 to the upper end and extending in a direction opposite to the fixing portion 230 in close contact with the front end of the tube 110 heat transmitter. The method according to claim 1 or 2, Thickness (x) of the condensate discharge clip 200 is smaller than the separation pitch (y) of the tube 110, heat exchanger with improved drainage. The method of claim 3, wherein Heat exchanger with improved drainage, characterized in that the connecting portion 260 extending in the longitudinal direction of the heat exchanger 100 is formed in the support portion 210 to connect the adjacent condensate discharge clip (200). The method of claim 4, wherein A drainage hole 261 is formed at the center of the connection part 260, and a groove 262 is formed to connect between the drainage hole 261 and the protruding support part 250 at both ends adjacent to the drainage hole 261. The groove (262) is heat exchanger with improved drainage, characterized in that formed to be inclined downward toward the drain hole (261).

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