KR20160025737A - heat exchanger for tube - Google Patents

heat exchanger for tube Download PDF

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Publication number
KR20160025737A
KR20160025737A KR1020140112936A KR20140112936A KR20160025737A KR 20160025737 A KR20160025737 A KR 20160025737A KR 1020140112936 A KR1020140112936 A KR 1020140112936A KR 20140112936 A KR20140112936 A KR 20140112936A KR 20160025737 A KR20160025737 A KR 20160025737A
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KR
South Korea
Prior art keywords
tube
heat exchanger
fin
fixed
fixing
Prior art date
Application number
KR1020140112936A
Other languages
Korean (ko)
Inventor
박제홍
Original Assignee
박제홍
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 박제홍 filed Critical 박제홍
Priority to KR1020140112936A priority Critical patent/KR20160025737A/en
Publication of KR20160025737A publication Critical patent/KR20160025737A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00—Making other particular articles
    • B21D53/02—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
    • B21D53/08—Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of both metal tubes and sheet metal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
    • F28F1/32—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely the means having portions engaging further tubular elements

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Geometry (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

The present invention provides a fin-tube type heat exchanger in which a fin is formed by pressing a pin and a tube into copper, which is made of the same kind of metal, by pressing and fixing the fin to the outer diameter of the tube, and by forming both ends of the tube in an elliptical shape .
In order to achieve the above object, the present invention provides a finned tubular heat exchanger including a tube having an elliptical cross-sectional shape and a fin portion fitted to an outer diameter of the tube, wherein the tube and the fin portion are made of copper, And the pin is pressed and fixed to the outer diameter of the tube in the process of expanding the tube.

Description

[0001] Heat exchanger for tube [0002]

The present invention relates to a finned tube heat exchanger, and more particularly to a finned tube heat exchanger in which a fin is formed by pressing and fixing a fin to a tube at a state where the fin and the tube are formed of copper of the same kind of metal, To a finned tubular heat exchanger.

BACKGROUND ART [0002] Generally, a heat exchanger is included in a cooling device or a heating device used for indoor and outdoor temperature control such as an air conditioner, a boiler, and the like, thereby increasing the cooling and heating efficiency. The basic principle of the heat exchanger is to exchange the temperature between the fluid passing through the inside and the outside of the tube of the heat exchanger so as to reduce energy loss and maximize the efficiency.

Particularly, among these heat exchangers, the fin tube type heat exchanger is one of representative heat exchanger products which is mainly used for an air conditioner, a refrigerator, etc. because of a simple manufacturing method and a large heat transfer performance with a small volume.

A conventional fin-tube type heat exchanger comprises a tube 1 and a plurality of fins 2 inserted into the tube 1 and guiding the flow of air to expand the heat exchange area, So as to be integrally formed through the brazing joint.

However, in the conventional tube as described above, since the tube constituting the heat exchanger and the radiating fin are made of separate members, the radiating fin is wound around the outer circumferential surface of the tube in a spiral shape and brazed, And the price is increased.

On the other hand, Korean Patent Application Publication No. 10-1998-066230 (entitled "Finned Tube Heat Exchanger") (hereafter referred to as "Prior Art") includes a tube through which refrigerant flows and a heat exchanger A fin-tube heat exchanger comprising a fin for guiding outside air while widening a heat exchange area, characterized in that the cross-section of the tube is formed in an elliptical shape so as to increase heat exchange capacity and reduce pressure loss have.

The prior art tube is made of stainless steel or steel in consideration of durability, while the pin inserted in the outer diameter of the tube is made of a brass material, so that the prior art is also capable of fixing tubes and fins by brazed joints Otherwise, there is no way to fix them, which leads to a loss of productivity and is not practical.

Document 1: Korean Patent Application Publication No. 10-1998-066230

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide a method of expanding a tube in a state in which a fin and a tube are formed of copper, To thereby fix the tube-type heat exchanger.

It is another object of the present invention to provide a finned tubular heat exchanger in which both ends of a tube having an elliptical sectional shape are formed in a circular cross sectional shape.

According to another aspect of the present invention, there is provided a fin tube heat exchanger including a tube having an elliptical cross-sectional shape and a fin portion fitted to an outer diameter of the tube, wherein the tube and the fin portion are made of copper, The pin is pressed and fixed to the outer diameter of the tube in the process of expanding the outer diameter of the tube.

Preferably, the distal end and the distal end of the tube are expanded in a circular cross-sectional shape through an expanding means.

The expansion unit includes a base, a first fixing clamp installed at the upper front of the base for pressing and fixing the tip of the tube, a second fixing clamp disposed at the rear of the first fixing clamp for pressing and fixing the end of the tube, And a dilatation pipe which is disposed in front of the first fixed clamp and enters into a tip end of the tube which is pressurized and fixed to the first fixed clamp by the power of the cylinder and expands the tip end of the tube into a circular sectional form .

The first fixed clamp may include a horizontal movable block that is threadedly coupled to a lead screw that is rotated forward and backward by the operation of the handle so as to reciprocate in the left and right direction, A first and a second semicircular grooves formed on one surface of the movable block and the other surface of the fixed block, the first and second semicircular grooves being opposed to each other on opposite sides of the fixed block, .

The second fixing clamp is fixed on the upper surface of the base, and is formed at the center of the upper surface with a second semi-elliptical groove recessed to lift the end of the tube. The fixing block is vertically movable upward and downward And a first semi-elliptical groove is formed in the center of the lower half of the fixed block so as to be fitted on the second semi-elliptical groove of the fixed block, thereby vertically moving the tube, Block.

In the present invention, the pin and the tube are formed of copper, which is made of the same metal, and the tube is expanded so that the pin inserted in the outer diameter of the tube is fixed to the outer diameter of the tube. It is possible to increase the productivity by simplifying the product and realize the effect of increasing the product economical efficiency by lowering the product unit price.

Further, the present invention has a synergistic effect of easily performing a coupling operation with a refrigerant pipe by making both ends of a tube having an elliptical sectional shape in a circular sectional shape.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a three-dimensional view showing the configuration of a finned tube heat exchanger according to a preferred embodiment of the present invention. Fig.
Fig. 2 is a view showing a tube-type heat exchanger according to the present invention in which both ends of a tube are expanded in a circular shape; Fig.
Fig. 3 is a sectional view of Fig. 2; Fig.
4 is a three-dimensional view showing the configuration of the fin tube-type heat exchanger expanding means according to the preferred embodiment of the present invention.
Fig. 5 shows the plane of Fig. 4; Fig.
Fig. 6 is a drawing showing a configuration of a first fixing clamp in the present invention. Fig.
Fig. 7 is a drawing showing a configuration of a second fixing clamp in the present invention. Fig.
8 is a view showing an operation state of the expanding means according to the present invention.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In the following detailed description, exemplary embodiments of the present invention will be described in order to accomplish the above-mentioned technical problems. And other embodiments which may be presented by the present invention are replaced by descriptions in the constitution of the present invention.

FIG. 1 is a three-dimensional view showing the construction of a finned tube heat exchanger according to a preferred embodiment of the present invention. FIG. 2 is a view showing that both ends of a tube of the finned tube heat exchanger according to the present invention are expanded in a circular shape Fig. 3 is a view showing a cross section of Fig. 2. Fig.

1 to 3, the fin tube type heat exchanger 10 according to the present invention includes a tube 20, a fin portion (not shown) inserted into the tube 20 and guiding the flow of air to expand the heat exchange area 30).

The tube 20 is formed to have an elliptical cross-sectional shape using copper to increase heat exchange capability and reduce pressure loss.

The fin portion 30 is inserted into the outer diameter of the tube 20 and includes a frame 32 fitted to the outer diameter of the tube 20 and at least one or more (34).

When the fin 30 is made of copper of the same kind of metal as the tube 20, the fin 30 and the tube 30 are made of the same material as the tube 20, It is not possible to brazed the tube 20 to the outer surface of the tube 20 in the manner that the outer diameter of the tube 20 is extended so that the fin 30 is pressed against the outer diameter of the tube 20. [ Respectively.

That is, the frame 32 of the fin 30 is inserted into the outer diameter of the tube 20, and then a deep-opening pipe having a diameter larger than the inner diameter of the tube 20 is inserted into the tube 20 The outer diameter of the tube 20 of the copper material is expanded to the outside, and the fin 30 can be pressed and fixed to the outer diameter of the tube 20.

When the fin portion 30 is pressed and fixed to the outer diameter of the tube 20 as described above, both ends of the tube 20 are formed into a circular cross-sectional shape using the expanding means 50 as shown in FIG. This is to facilitate coupling coupling with a refrigerant tube having a circular cross-sectional shape. In the following, the structure of the expanding means of the above-mentioned fin tube heat exchanger will be described concretely do.

FIG. 4 is a three-dimensional view showing the construction of the fin tube-type heat exchanger expanding means according to a preferred embodiment of the present invention, and FIG. 5 is a view showing the plane of FIG.

4 and 5, the fin tube type heat exchanger expanding means of the present invention includes a base 52, first and second fixing clamps 60 and 80 installed at the front and rear of the upper end of the base 52, And a dehumidifying pipe 94. [

The first fixing clamp 60 fixes the tip 20a of the tube 20 constituting the fin tube heat exchanger 100. The first fixing clamp 60 fixes the tip 20a of the tube 20 constituting the fin tube heat exchanger 100, The lead screw 64 is screwed on the outer diameter of the lead screw 64 and is formed in the outer diameter of the lead screw 64 in accordance with the forward and reverse rotation of the lead screw 64. [ A horizontal movable block 66 reciprocating left and right horizontally on the screw 64a, a first semicircular groove 68 recessed on one surface of the horizontal movable block 66, A fixed block 70 fixed to the upper end of the base 10 in a state of being disposed at one side of the fixed block 70 and a second semi-circular groove 68 formed at one side of the fixed block 70, And a second semicircular groove (72) formed at a corresponding position.

The first and second semicircular grooves 68 and 72 formed in the fixed and horizontal movable blocks 66 and 70 are formed in a state in which the tip 20a of the tube 20 of the fin tube heat exchanger 10 described above is inserted, In the process of moving the horizontal semi-circular groove 72 toward the second semi-circular groove 72 in accordance with the movement of the horizontal movable block 70 in the left direction in the drawing, the tip 20a of the tube 20 is pressed Respectively.

The second fixing clamp 80 is disposed behind the first fixing clamp 60 and fixes the end 20b of the tube 20 constituting the fin tube heat exchanger 10. [

7, the second fixing clamp 90 is fixed to the upper surface of the base 62, and a fixing block 82 having a second semi-elliptical groove 84 formed therein is formed at the center of the upper surface thereof, A bolt 90 is fastened vertically up and down on the upper surface of the fixed block 82 and a bolt 90 is fastened to the lower end of the fixed block 82 at a position corresponding to the second semi-elliptical groove 84 of the fixed block 82. [ A vertical movable block 86 having a first semi-elliptical groove 88 formed therein and a guide post 92 for guiding vertical movement of the vertical movable block 86 upward and downward.

The second fixing clamp 90 is mounted on the second semi-elliptical groove 84 formed on the upper surface of the fixing block 82 with the end 20a of the tube 20 of the fin tube heat exchanger 10 placed on the second fixing clamp 90, The vertical movable block 86 is lowered to fit the first and second semi-elliptical grooves 84 and 86 of the vertical movable block 86 and the fixed block 82 to the second semi-elliptical groove 86, So that the end 20b of the tube 20 of the fin-tube heat exchanger 10 is pressed and fixed.

The pipe 94 is reciprocated forward and backward by the power of the cylinder 96 in a state of being disposed in front of the first fixed clamp 60 and is fixed to the fixed block and the movable block of the first fixed clamp 60 Which are clamped in the first and second semicircular grooves 68 and 72 of the tube-type heat exchanger 10 and the tube 20, Is a means for expanding the distal end (20a) of the body (20) into a circular cross-sectional shape.

And a guide block 98 for guiding the reciprocating movement of the pipe 94 is further provided between the pipe 94 and the first fixing clamp 60.

When the both ends of the tube 20 of the fin tube heat exchanger 10 are to be expanded in the shape of a circular cross section by using the fin tube heat exchanger expanding means 50 of the present invention constructed as described above, And then the end 20b of the tube 20 of the fin tube type heat exchanger is connected to the end of the second fixing clamp 80 The vertical movable block 86 is lowered on the fixed block 82 so that the vertical movable block 86 and the fixed block 82 And the end 20b of the tube 20 of the fin tube heat exchanger 10 positioned in the second semi-elliptic groove 84 is fitted and fixed to the first and second semi-elliptic grooves 84, .

Next, the tip 20a of the tube 20 of the fin tube heat exchanger 10 is inserted into the second semicircular groove 72 of the fixing block 70 of the first fixing clamp 60, The lead screw 64 is rotated by the operation of the handle 62 so that the horizontal movable block 66 inserted in the outer diameter of the lead screw 64 is moved to the outer diameter of the lead screw 64 Which is inserted into the second semicircular groove 72 of the fixed block 70 using the first semi-circular groove 68 of the horizontal movable block 66, (20a) of the tube (20) of the tube (10).

When the cylinder 96 disposed in front of the first stationary clamp 60 is driven to advance the cylinder rods 94, the cylinder rods 94 are moved to the fixed and horizontal movable blocks 66 and 70, Of the tube 20 of the fin tube heat exchanger 10 which is pressed and fixed in a state of being fitted in the first and second semicircular grooves 68 and 72 of the first and second semicircular grooves 68 and 72. Accordingly, The distal end 20a of the tube 20 is expanded to have a circular cross-sectional shape.

When the tube 20 of the fin tube type heat exchanger 10 is completely expanded as described above, the tube 20 of the fin tube type heat exchanger 10 is rotated to open the tube 20 of the fin tube type heat exchanger 10 The distal end 20b of the tube 20 is clamped to the first fixed clamp 60 and then the distal end 20b of the tube 20 is expanded to have a circular cross sectional shape by using the expanding rod 94, The finished finned tube heat exchanger 10 is produced as shown in FIG.

10: fin tube type heat exchanger 20: tube
20a: leading end 20b:
30: fin portion 50: fin tube type heat exchanger expansion means
52: base 60: first fixing clamp
64: lead screw 66: horizontal movable block
70: fixed block 80: second fixed clamp
82: fixed block 86: vertical movable block
94: Deployment

Claims (5)

A fin tube heat exchanger comprising a tube (20) having an elliptical cross sectional shape and a fin portion (30) fitted to an outer diameter of the tube (20)
The tube 20 and the fin 30 are made of copper of the same kind of metal so that the fin 30 is compressed and fixed to the outer diameter of the tube 20 in the process of expanding the outer diameter of the tube 20. Wherein the heat exchanger is a tubular heat exchanger.
The method according to claim 1,
Wherein the distal end (20a) and the distal end (20b) of the tube (20) are expanded through the expanding means (50) into a circular cross sectional shape.
3. The method of claim 2,
The expanding means (50) comprises:
A base 52;
A first fixing clamp 60 installed at the upper end of the base 52 for pressing and fixing the tip 20a of the tube 20;
A second fixing clamp 80 disposed behind the first fixing clamp 60 for pressing and fixing the end 20b of the tube 20;
And is located in front of the first fixed clamp 60 and enters the tip end of the tube 20 which is pressed and fixed to the first fixed clamp 60 by the power of the cylinder 96, (94) for expanding the tip in a circular cross-sectional shape. ≪ RTI ID = 0.0 > 11. < / RTI >
The method of claim 3,
The first stationary clamp (60) comprises:
A horizontal movable block 66 which is threadedly engaged with the lead screw 64 which is rotated in the forward and reverse directions by the operation of the handle 62 to reciprocate left and right;
A fixed block 70 fixedly mounted on the upper end of the base 52 in a state where the fixed block 70 is disposed on one side of the horizontal movable block 66;
And the other end of the fixed block 70 is inserted into the horizontal movement block 66 and the other end of the fixed block 70 is inserted into the other end of the fixed block 70, And a first and a second semicircular grooves (68, 72) for pressing and fixing the first and second semicircular grooves (20a).
The method of claim 3,
The second stationary clamp 80 comprises:
A fixing block 82 fixed to the upper surface of the base 52 and formed with a second semi-elliptical groove 84 for receiving the end 20b of the tube 20;
A bolt 90 is fastened vertically upward and downward on the upper surface of the fixed block 82 and a bolt 90 is fastened on the second semi-elliptical groove 84 of the fixed block 82, And a vertical movable block (86) for forming a semi-elliptical groove (88) and pressing and fixing an end (20b) of the tube (20) mounted on the second semi-elliptical groove (86) Tubular heat exchanger.




KR1020140112936A 2014-08-28 2014-08-28 heat exchanger for tube KR20160025737A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106090878A (en) * 2016-06-22 2016-11-09 上海和衡能源科技发展有限公司 Two-tube fin-type heat exchanger and assembling thereof
CN109579367A (en) * 2019-01-08 2019-04-05 江苏通盛换热器有限公司 A kind of energy-saving column heat exchanger for vehicle
KR102013645B1 (en) 2018-05-16 2019-10-21 주식회사 덴코 Device for heat exchager
CN111561834A (en) * 2020-06-02 2020-08-21 江阴博圣热能科技有限公司 Laser welding finned tube and production process thereof
CN112880463A (en) * 2021-03-02 2021-06-01 上海兴全电力技术有限公司 Elliptical heat exchange tube processing technology, anti-scaling high-efficiency heat exchange tube bundle and preparation method thereof

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980066230A (en) 1997-01-21 1998-10-15 구자홍 Fin-tube heat exchanger

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR19980066230A (en) 1997-01-21 1998-10-15 구자홍 Fin-tube heat exchanger

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106090878A (en) * 2016-06-22 2016-11-09 上海和衡能源科技发展有限公司 Two-tube fin-type heat exchanger and assembling thereof
KR102013645B1 (en) 2018-05-16 2019-10-21 주식회사 덴코 Device for heat exchager
CN109579367A (en) * 2019-01-08 2019-04-05 江苏通盛换热器有限公司 A kind of energy-saving column heat exchanger for vehicle
CN111561834A (en) * 2020-06-02 2020-08-21 江阴博圣热能科技有限公司 Laser welding finned tube and production process thereof
CN112880463A (en) * 2021-03-02 2021-06-01 上海兴全电力技术有限公司 Elliptical heat exchange tube processing technology, anti-scaling high-efficiency heat exchange tube bundle and preparation method thereof

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