JP2008232497A - Fin and guide for heat exchanger and its usage - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To heighten heat exchange efficiency by efficiently stirring air flowing into a heat exchanger. <P>SOLUTION: This fin 1 for a heat exchanger is fitted to a heat transfer pipe, and provided with a fin body 11 and a plurality of collars 13 and an erected part 14. The fin body 11 is extended in a predetermined direction 91 and provided with a plurality of holes disposed in a predetermined direction 91 for inserting a heat transfer pipe. The collars 13 are erected to surround the holes one by one on the same side of the fin body 11. The collars 13 are all disposed between two straight lines 101, 102 along a predetermined direction 91 on the surface 111 of the fin body 11 when the fin 1 for the heat exchanger is seen from the collar 13 side, and each outer periphery 131 is in contact with the two straight lines 101, 102. The erected part 14 is erected on the fin body 11 on the same side as the collars 13, and located outside the two straight lines 101, 103. The tip 141 of the erected part is located higher than the tip 132 of the collar 13 seen from the surface 111. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a heat exchanger fin and a guide used therefor.

  Conventionally, in order to increase the heat exchange efficiency of the heat exchanger fins, a heat exchanger fin is provided with a standing part by raising a part of the fin around the hole into which the heat transfer tube is inserted, or a slit. And louvers. An annular collar surrounding the hole is provided upright on the heat exchanger fin.

  In the conventional heat exchanger fin, the tip of the standing portion is located lower than the tip of the collar. This is because when a plurality of heat exchanger fins are stacked, the fins stacked above are supported by a collar.

In addition, the technique relevant to this invention is shown below.
JP-A-61-110889 Japanese Patent Laid-Open No. 11-166696 JP 2001-227890 A

  However, even if the standing portions are provided on the heat exchanger fins, the heat exchanging efficiency cannot be increased so much as long as only the standing portions having a short height can be provided in relation to the collar.

  This invention is made | formed in view of the situation mentioned above, and aims at improving heat exchange efficiency.

  A fin for a heat exchanger according to a first invention is a fin that is installed in a heat transfer tube, and includes a fin body, a plurality of collars, and a standing portion. The fin main body extends in a predetermined direction, and a plurality of holes into which the heat transfer tubes are inserted are arranged along the predetermined direction. The collar is erected on the same side of the fin body, one for each of the holes, surrounding the holes. When the fin is viewed from the collar side, each of the collars is disposed between two straight lines extending along a predetermined direction on the surface of the fin body, and the outer periphery is in contact with the two straight lines. The standing portion is erected on the fin body on the same side as the collar, and is located outside the two straight lines. The tip of the standing portion is higher than the tip of the collar when viewed from the surface.

  A heat exchanger according to a second aspect includes the heat exchanger fin according to the first aspect and a heat transfer tube inserted into a hole provided in the heat exchanger fin.

  A guide according to a third invention is a guide used for the heat exchanger fin according to the first invention, and is provided with first and second grooves extending in a certain direction. The first and second grooves are alternately provided in a direction perpendicular to the direction. The second groove is deeper than the first groove.

  A guide according to a fourth aspect is the guide according to the third aspect, wherein the depth of the first groove is substantially equal to the height of the collar when viewed from the surface of the fin body.

  The guide according to the fifth invention is the guide according to the third or fourth invention, and the depth of the second groove is larger than the height of the standing portion when viewed from the surface of the fin body.

  A guide usage method according to a sixth aspect of the invention is a method of using the guide according to any one of the third to fifth aspects. A plurality of collars belonging to the same heat exchanger fin are slidably fitted into one of the first grooves of the guide. In the second groove adjacent to the first groove, the standing portion belonging to the same heat exchanger fin as the collar fitted in the first groove is accommodated.

  A guide usage method according to a seventh invention is a guide usage method according to the sixth invention, which belongs to the same heat exchanger fin and is adjacent to each other in a predetermined direction, and the inner wall of the first groove. Exhaust the air in the space surrounded by

  According to the heat exchanger fin according to the first aspect of the present invention, since the tip of the standing portion is located higher than the tip of the collar, in the heat exchanger obtained by installing the heat exchanger fin on the heat transfer tube The air flowing into the heat exchanger can be efficiently stirred. Therefore, the heat exchange efficiency is increased.

  Moreover, the heat exchanger fins can be moved to a predetermined position by slidably sandwiching the plurality of collars with the guides extending on the two straight lines. Furthermore, since the standing portion is located outside the two straight lines, the space between the collars adjacent to each other in a predetermined direction can be easily sealed with two guides sandwiching the collar.

  According to the heat exchanger concerning the 2nd invention, since the air which flows into a heat exchanger can be stirred efficiently, heat exchange efficiency is high.

  According to the guide according to the third aspect of the present invention, the guide can be used also for the fin for the heat exchanger having the standing portion whose tip position is higher than the position of the tip end of the collar.

  According to the guide according to the fourth invention, when a plurality of collars belonging to the same heat exchanger fin are fitted into one first groove, a space between the collars adjacent to each other in a predetermined direction is obtained. The collar and the inner wall of the first groove can be substantially sealed. By reducing the air pressure in the space, the heat exchanger fins can be attracted to the guide without being held from the opposite side of the guide. Therefore, the heat exchanger fins are easy to handle in the manufacturing process.

  According to the guide according to the fifth aspect of the present invention, it is possible to prevent the standing portion from coming into contact with the guide when the standing portion is placed in the second groove.

  According to the method of using the guide according to the sixth aspect of the present invention, the plurality of collars belonging to the same heat exchanger fin are fitted and slid into one of the first grooves, whereby the heat exchanger fin is It can be moved to a position. Since the guide is provided with a plurality of first grooves, a plurality of heat exchanger fins can be moved in parallel to a predetermined position. In addition, since the standing portion is housed in the second groove, the movement of the heat exchanger fins is not easily inhibited by the standing portion.

  According to the method for using the guide according to the seventh aspect of the invention, the air pressure in the space can be reduced by exhausting the air in the space. Therefore, the heat exchanger fins are attracted to the guide.

First embodiment.
FIG. 1 is a diagram conceptually showing a heat exchanger fin 1 according to the present embodiment. FIG. 2 is a view of the cross-section at the position II-II shown in FIG.

  The heat exchanger fin 1 is a fin for a heat exchanger that is installed in a heat transfer tube, and includes a fin body 11, a plurality of collars 13, and standing portions 14 and 15.

  The heat exchanger fin 1 can be obtained, for example, by processing a single plate-shaped heat transfer material. Specifically, the collar 13 is obtained by, for example, pressing the plate-shaped heat transfer material. The standing portions 14 and 15 are obtained by cutting and raising the plate-like heat transfer material.

  The fin main body 11 extends in a predetermined direction 91 and is provided with a plurality of holes 12 into which the heat transfer tubes are inserted. The plurality of holes 12 are arranged along a predetermined direction 91.

  The plurality of collars 13 are all annular and are provided on the same side with respect to the fin body 11. One collar 13 is erected around each hole 12, one for each hole 12.

  All the collars 13 when the heat exchanger fins 1 are viewed from the collar 13 side are arranged in the following manner. That is, the collar 13 is disposed between the two straight lines 101 and 102 extending in the predetermined direction 91 on the surface 111 of the fin body 11. The outer periphery 131 of the collar 13 is in contact with the straight lines 101 and 102.

  The standing portion 14 is erected on the fin body 11 on the same side as the collar 13, and is positioned outside the two straight lines 101 and 102. The standing portion 14 is not located on the straight lines 101 and 102. The front end 141 (position r1) of the standing portion 14 is located higher than the front ends 132 (position r2) of the plurality of collars 13 when viewed from the surface 111 (FIG. 2).

  The standing portion 15 is erected on the fin body 11 on the same side as the collar 13, and is positioned between the two straight lines 101 and 102. The standing portion 15 is not located on the straight lines 101 and 102. The tip 151 of the standing portion 15 is at a position lower than the tip 132 of the collar 13 when viewed from the surface 111 (FIG. 2).

  The guide 20 used for the heat exchanger fin 1 will be described with reference to FIGS. 3 and 4. FIG. 4 is a view of the cross section at the position IV-IV shown in FIG. 3 as viewed in a predetermined direction 91, and shows the guide 20 in a state where it is used for the heat exchanger fin 1.

  The guide 20 includes guide portions 201 and 202 and a connecting portion 203. In FIG. 3, the positions where the guide portions 201 and 202 are arranged are indicated by hatching. Specifically, the guide portions 201 and 202 extend along the straight lines 101 and 102, respectively, and sandwich the plurality of collars 13 slidably. By sliding the collar 13 between the guides 201 and 202, the heat exchanger fin 1 can be moved to a predetermined position.

  In addition, since the standing parts 14 and 15 are not located on the straight lines 101 and 102 as described above, the guide parts 201 and 202 are easily arranged on the straight lines 101 and 102, respectively.

  The connecting portion 203 connects the guide portions 201 and 202 to each other on the side opposite to the fin body 11. The collar 13 sandwiched between the guides 201 and 202 is closed by the connecting portion 203 on the side opposite to the fin body 11.

  The guide parts 201 and 202 are in contact with the surface 111 of the fin body 11 (FIG. 4). The connecting portion 203 is in contact with the collar 13 (FIG. 4). Thereby, there are no gaps between the guide portions 201 and 202 and the fin body 11 and between the collar 13 and the connecting portion 203.

  Therefore, the space 301 (shown by hatching in FIG. 3) between the collars 13 adjacent to each other in the predetermined direction 91 can be substantially sealed by the guide portions 201 and 202 and the connecting portion 203. . In addition, since the standing part 14 is located outside the two straight lines 101 and 102, it does not hinder the connecting part 203 from contacting the collar 13.

  By making the space 301 substantially sealed by the guide 20, the air in the space 301 can be exhausted and the air pressure in the space 301 can be reduced. Accordingly, the heat exchanger fins 1 can be attracted to the guide 20 without being held from the side opposite to the guide 20. Therefore, the heat exchanger fins 1 are easy to handle in the manufacturing process.

  A heat exchanger can be obtained by inserting a heat transfer tube into the plurality of holes 12 provided in the heat exchanger fin 1 described above.

  According to the heat exchanger fin 1 described above, since the tip 141 of the standing portion 14 is located higher than the tip 132 of the collar 13, the air flowing into the heat exchanger can be efficiently stirred. Therefore, the heat exchange efficiency is increased.

Second embodiment.
In the present embodiment, the guide 2 used for the heat exchanger fin 1 described in the first embodiment will be described with reference to FIGS. 5 and 6. FIG. 6 is a view of the cross-section at a position VI-VI shown in FIG. 5 as viewed in a predetermined direction 91, and shows the guide 2 in a state where it is used for a plurality of heat exchanger fins 1.

  All the heat exchanger fins 1 extend along a predetermined direction 91, and are arranged in the direction 93. The guide 2 is used for the plurality of heat exchanger fins 1. Here, the direction 93 is perpendicular to the predetermined direction 91 and is along the surface 111 of the fin body 11.

  The guide 2 includes a plurality of guides 20 (hereinafter referred to as “guide member 20”) described in the first embodiment and a connecting portion 204 as its members. In FIG. 5, the positions where the guide portions 201 and 202 of the guide 2 are arranged are indicated by hatching, as in FIG. 3.

  A plurality of guide members 20 are arranged along the direction 93 and correspond to each of the plurality of heat exchanger fins 1. Specifically, the plurality of collars 13 belonging to the same heat exchanger fin 1 are sandwiched between guide portions 201 and 202 belonging to the same guide member 20.

  Therefore, the collar 13 of one heat exchanger fin 1 slides between the guide portions 201 and 202 of one guide member 20 (FIG. 5). Since the guide 2 includes a plurality of guide members 20, the plurality of heat exchanger fins 1 can be moved to a predetermined position in parallel by the guide 2.

  A space surrounded by the guide portions 201 and 202 belonging to the same guide member 20 and the connecting portion 203 can be grasped as the first groove 21 (FIG. 6) provided in the guide 2. Since the guides 201 and 202 extend along the predetermined direction 91, it can be understood that the first groove 21 extends in the predetermined direction 91.

  In view of sliding between the plurality of collars 13 belonging to the same heat exchanger fin 1 between the guide parts 201 and 202 belonging to the same guide member 20, one of the first grooves 21 is obtained. It can be grasped that a plurality of collars 13 belonging to the same heat exchanger fin 1 are slidably fitted.

  The depth D1 of the first groove 21 is substantially equal to the height h1 of the collar 13 when viewed from the surface 111 of the fin body 11 (FIG. 6). Thereby, when a plurality of collars 13 belonging to the same heat exchanger fin 1 are fitted into one first groove 21, a gap is formed between the tip 132 of the collar 13 and the inner wall 21 a of the first groove 21. It is difficult to do.

  Therefore, the space 301 (shown by hatching in FIG. 5) between the collars adjacent to each other in the predetermined direction 91 is substantially sealed by the collar 13 and the inner wall 21a of the first groove 21. be able to.

  By making the space 301 substantially sealed, for example, the air in the space 301 can be exhausted to reduce the pressure in the space 301. Thereby, even if it does not hold | maintain from the opposite side to the guide 2, the fin 1 for heat exchangers can be attracted to the guide 2. FIG. Therefore, the heat exchanger fins 1 are easy to handle in the manufacturing process.

  The connecting portion 204 connects the guides 20 adjacent to each other in the direction 93. Specifically, the connecting portion 204 connects the connecting portions 203 of the guide member 20 to each other. The standing portion 14 is accommodated in a space surrounded by the guide members 20 adjacent to each other in the direction 93 and the connecting portion 204.

  A space that belongs to the different guide members 20 and is surrounded by the guide portions 201 and 202 adjacent to each other in the direction 93 and the connecting portion 204 is grasped as a second groove 22 (FIG. 6) provided in the guide 2. be able to. Since a plurality of guide members 20 are arranged along the direction 93 and the guides 201 and 202 extend along the predetermined direction 91, the second groove 22 extends in the predetermined direction 91. It can be understood that the first grooves 21 are alternately provided.

  In view of the fact that the standing portion 14 is housed in the space surrounded by the guide members 20 adjacent to each other in the direction 93 and the connecting portion 204, the second groove 22 adjacent to the first groove 21 includes It can be grasped that the standing portion 14 belonging to the same heat exchanger fin 1 as the collar 13 fitted in the first groove 21 is accommodated.

  The surface 204a on the fin body 11 side of the connecting portion 204 is recessed to the opposite side of the fin body 11 from the surface 203a on the fin body 11 side of the connecting portion 203 (FIG. 6). If described using the first and second grooves 21 and 22, the second groove 22 is deeper than the first groove 21. According to this aspect, the tip 141 of the standing portion 14 is unlikely to contact the surface 204 a of the connecting portion 204.

  In FIG. 6, the case where the depth D2 of the 2nd groove | channel 22 is larger than the height h2 of the standing part 14 when it sees from the surface 111 of the fin main body 11 is shown. According to this aspect, the standing portion 14 does not contact the guide 2.

  When the guide 2 is removed from the heat exchanger fin 1 and viewed, the guide 2 can be grasped as follows. That is, in the guide 2, the first and second grooves 21 and 22 extending in a certain direction are alternately provided in a direction perpendicular to the direction.

It is a figure which shows notionally the fin for heat exchangers concerning 1st Embodiment. It is the figure which looked at the cross section in the position II-II shown by FIG. FIG. 4 is a diagram used for explaining a guide 20. FIG. 4 is a view of a cross-section at a position IV-IV shown in FIG. It is a figure used for description of the guide 2 concerning 2nd Embodiment. It is the figure which looked at the cross section in the position VI-VI shown by FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Heat exchanger fin 2 Guide 11 Fin main body 12 Hole 13 Collar 14 Standing part 21 1st groove | channel 21a Inner wall 22 2nd groove | channel 91 Predetermined direction 101,102 Straight line 111 Surface 131 Outer periphery 132,141 Tip 301 Space D1, D2 depth h1, h2 height

Claims (7)

A fin for a heat exchanger installed in the heat transfer tube,
A fin body (11) extending in a predetermined direction (91) and having a plurality of holes (12) into which the heat transfer tubes are inserted, arranged along the predetermined direction;
A plurality of annular collars (13) standing on the same side of the fin body, one for each of the holes, surrounding the hole;
On the same side as the collar, a standing portion (14) standing on the fin body,
When the fin is viewed from the collar side, the collar is arranged between two straight lines (101, 102) extending along the predetermined direction on the surface (111) of the fin body, (131) touches the two straight lines,
The standing portion is located outside the two straight lines,
The heat exchanger fin (1), wherein the tip (141) of the standing portion is located higher than the tip (132) of the collar as viewed from the surface. A heat exchanger fin (1) according to claim 1;
A heat exchanger comprising: a heat transfer tube inserted into the hole (12) provided in the heat exchanger fin. It is a guide used for the fin (1) for heat exchangers of Claim 1, Comprising:
First and second grooves (21, 22) extending in a certain direction are alternately provided in a direction perpendicular to the direction,
The second groove (22) is a guide (2) deeper than the first groove (21).   The depth (D1) of the first groove (21) is substantially equal to the height (h1) of the collar (13) when viewed from the surface (111) of the fin body (11). 3. Guide according to 3.   The depth (D2) of the second groove (22) is larger than the height (h2) of the standing portion (14) when viewed from the surface (111) of the fin body (11). The guide according to claim 3 or claim 4. A method of using a guide (2) according to any one of claims 3 to 5,
A plurality of the collars (13) belonging to the same heat exchanger fin (1) are slidably fitted into one of the first grooves (21) of the guide,
Use of a guide in which the second groove (22) adjacent to the first groove accommodates the standing portion (14) belonging to the same heat exchanger fin as the collar to be fitted into the first groove. Method.   A space (301) enclosed by the collar (13) adjacent to each other in the predetermined direction (91) and the inner wall (21a) of the first groove (21) belonging to the same heat exchanger fin (1). The method of using the guide according to claim 6, wherein the air is exhausted.

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