KR200459178Y1 - Double tube type heat exchange pipe - Google Patents

Double tube type heat exchange pipe Download PDF

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Publication number
KR200459178Y1
KR200459178Y1 KR2020110006795U KR20110006795U KR200459178Y1 KR 200459178 Y1 KR200459178 Y1 KR 200459178Y1 KR 2020110006795 U KR2020110006795 U KR 2020110006795U KR 20110006795 U KR20110006795 U KR 20110006795U KR 200459178 Y1 KR200459178 Y1 KR 200459178Y1
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KR
South Korea
Prior art keywords
liquid refrigerant
gas
tube
inner tube
heat exchange
Prior art date
Application number
KR2020110006795U
Other languages
Korean (ko)
Inventor
최건식
Original Assignee
최건식
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Priority to KR2020110006795U priority Critical patent/KR200459178Y1/en
Application granted granted Critical
Publication of KR200459178Y1 publication Critical patent/KR200459178Y1/en

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00Tubular elements; Assemblies of tubular elements
    • F28F1/10Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/42Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being both outside and inside the tubular element
    • F28F1/424Means comprising outside portions integral with inside portions
    • F28F1/426Means comprising outside portions integral with inside portions the outside portions and the inside portions forming parts of complementary shape, e.g. concave and convex
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D53/00Making other particular articles
    • B21D53/02Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers
    • B21D53/06Making other particular articles heat exchangers or parts thereof, e.g. radiators, condensers fins, headers of metal tubes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28DHEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/10Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically
    • F28D7/106Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically consisting of two coaxial conduits or modules of two coaxial conduits
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00Tubular elements; Assemblies of tubular elements
    • F28F1/08Tubular elements crimped or corrugated in longitudinal section
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00Tubular elements; Assemblies of tubular elements
    • F28F1/10Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/40Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only inside the tubular element
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/08Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
    • F28F21/081Heat exchange elements made from metals or metal alloys
    • F28F21/084Heat exchange elements made from metals or metal alloys from aluminium or aluminium alloys
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/08Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
    • F28F21/081Heat exchange elements made from metals or metal alloys
    • F28F21/085Heat exchange elements made from metals or metal alloys from copper or copper alloys
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D28/00Shaping by press-cutting; Perforating
    • B21D28/24Perforating, i.e. punching holes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2250/00Arrangements for modifying the flow of the heat exchange media, e.g. flow guiding means; Particular flow patterns
    • F28F2250/10Particular pattern of flow of the heat exchange media
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28HEAT EXCHANGE IN GENERAL
    • F28FDETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2255/00Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes
    • F28F2255/08Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes pressed; stamped; deep-drawn

Abstract

The present invention relates to a double-tube type heat exchange pipe, the gas or liquid refrigerant is passed through the passage hole to cool the inner tube, the gas or liquid refrigerant supplied through the through-hole of the outer pipe is collected in the first collecting groove formed in the inner tube Gas and liquid refrigerant pass through the spiral groove of the inner tube, and continuously collide with a plurality of protrusions to cool the gas and liquid refrigerant by heat exchange, and the cooled gas and liquid refrigerant collect in the second collecting groove of the inner tube. It is discharged to the outside through the through hole of the outer tube.
In the double tube heat exchange pipe according to the present invention, gas or liquid refrigerant is collected into the first and second collecting grooves of the inner tube to facilitate continuous supply and discharge, and through hole punching through which the gas or liquid refrigerant passes through the outer tube outer surface. It is easy to manufacture by (punching) operation, there is no need for additional processing on the outer tube, so the volume area is minimized, manufacturing cost is reduced, and rapid production is possible.

Description

Double tube type heat exchange pipe

The present invention relates to a double-tube heat exchange pipe, and more particularly, gas and liquid are passed through spiral grooves of an inner tube, and are continuously collided with a plurality of protrusions to be cooled by heat exchange, and the cooled gas and liquid are collected in a second manner. The present invention relates to a double tube heat exchange pipe that is collected in a groove and discharged through a through hole.

In general, the air conditioner used in the vehicle is to cool the front and rear of the car in the summer or winter, or remove the frost that is put on the wind shield during the rain or winter, the driver can secure the front and rear view.

The air conditioner is equipped with a heating system and a cooling system at the same time, by selectively introducing the outside air or bet to heat or cool the air and then blow into the interior of the vehicle to cool, heat or ventilate the interior of the vehicle.

At this time, the air conditioner is provided with a double tube internal heat exchanger for cooling the air supplied to the vehicle interior, Figure 1 is a cross-sectional view showing a double tube internal heat exchanger.

A low pressure passage 11 is formed therein, and an inner tube 10 having a spiral portion 12 formed on the outer surface of the inner tube 10 and a double tube structure on the outer circumferential surface of the inner tube 10 and at the same time It consists of an outer tube 20 which forms a flow path 21 and is coupled to the inlet and outlet pipes 22 and 23 through which gas is supplied and discharged to the outer circumferential surfaces of both ends.

At this time, the refrigerant passes through the low pressure passage 11 of the inner tube 10, and the inner tube 11 is cooled, and the high pressure passage 21 formed by the spiral portion 12 of the inner tube 10. As the gas passes through the inner tube 10, the gas is exchanged with the inner tube 10, and the gas is cooled and supplied into the vehicle.

In addition, the outer circumferential surface of the outer tube 20 is formed with the same diameter as the diameter of the inner tube 10, both ends of the outer circumferential surface of the outer tube 20 to which the inlet and outlet pipes 22 and 23 are coupled An expansion tube 24 is formed which is widened in width.

In addition, any one of the expansion tube 24 of the outer tube 20 collects a predetermined amount so that the gas supplied through the inlet pipe 22 is continuously supplied to the high pressure passage 21, the other is a heat exchange The gas cooled by the action is collected in a predetermined amount so as to be continuously discharged through the discharge pipe 23.

However, in order to continuously supply and discharge the gas into the inlet and outlet pipes 22 and 23 as described above, the structure for collecting the gas by forming the expansion tube 24 in the outer tube 20 is the outer tube 20. There is a difficulty in forming the expansion tube 24 in a specific section of, the volume area of the outer tube 20 is increased by the formation of the expansion tube 24, the manufacturing cost of manufacturing the outer tube 20 is increased There is a problem that the production period takes a long time.

The present invention is to solve the above problems, an object of the present invention, the inner tube is cooled by passing the gas or liquid refrigerant to the passage hole, the gas or liquid refrigerant supplied through the through-hole of the outer pipe is the inner tube Gathered in the first collecting groove formed in the gas pipe, the gas and liquid refrigerant via the spiral groove of the inner tube, the continuous collision with a plurality of projections to cool the gas and liquid refrigerant by heat exchange action, the cooled gas and liquid refrigerant inside It is to provide a double tube heat exchange pipe that is collected in the second collecting groove of the tube and discharged to the outside through the through-hole of the outer tube.

In addition, the through-hole diameter of the outer tube is formed to be smaller than the width of the first and second collecting grooves of the inner pipe, thereby providing a double tube heat exchange pipe through which the gas or liquid refrigerant is continuously supplied or discharged through the through-hole of the outer tube. will be.

In order to achieve the object of the present invention as described above, the double tube heat exchange pipe according to the present invention, a flow path hole through which gas or liquid refrigerant is passed in a hollow shape is formed, spaced apart at predetermined intervals along the longitudinal direction on the outer surface An inner tube having an annular spiral groove, a plurality of protrusions protruding from the spiral groove, and formed with first and second collecting grooves for collecting gas or liquid refrigerant at both ends of the spiral groove. And an outer tube closely coupled to the inner tube outer surface in a hollow shape, and through holes communicating with the first and second collecting grooves of the inner tube at both ends of the outer circumferential surface thereof.

In the double-tube heat exchange pipe according to the present invention, the through-hole diameter of the outer tube is formed smaller than the width of the first and second collecting grooves of the inner tube.

In the double tube heat exchange pipe according to the present invention, a plurality of protrusions protrude from the outer surface of the first and second collecting grooves.

In the double tube heat exchange pipe according to the present invention, the inner tube is characterized in that formed of any one material of aluminum, copper or copper alloy.

In the double tube heat exchange pipe according to the present invention, the first and second collecting grooves are formed in any one of hemispherical, elliptical or polygonal shape.

In the double tube heat exchange pipe according to the present invention, the protrusion is characterized in that formed in any one of a circular, hemispherical, elliptical or polygonal shape.

In the double tube heat exchange pipe according to the present invention as described above, the gas or liquid refrigerant is collected into the first and second collecting grooves of the inner tube to facilitate continuous supply and discharge, and the gas or liquid refrigerant passes through the outer tube outer surface. It is easy to manufacture through the punching (punching) through the work, and does not require a separate processing on the outer tube, the volume area is minimized, the manufacturing cost is reduced, and there is an advantage that can be produced quickly.

1 is a cross-sectional view showing a double tube internal heat exchanger according to the prior art.
Figure 2 is a schematic diagram showing a state in which the double tube heat exchange pipe according to the present invention is installed in the vehicle cooling apparatus.
Figure 3 is a perspective view of a double tube heat exchange pipe according to the present invention.
Figure 4 is an exploded perspective view of a double tube heat exchange pipe according to the present invention.
Figure 5 is a side cross-sectional view showing a state in which a double tube heat exchange pipe according to the present invention is used.

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

Figure 2 is a schematic diagram showing a state in which the double tube heat exchange pipe according to the present invention is installed in a vehicle cooling apparatus, Figure 3 is a perspective view showing a double tube heat exchange pipe according to the present invention, Figure 4 is a double tube heat exchanger according to the present invention 5 is an exploded perspective view of a pipe, and FIG. 5 is a side cross-sectional view showing a state in which a double tube heat exchange pipe according to the present invention is used.

The inner tube 100 has a hollow hole formed in the passage hole 101 through which gas or liquid refrigerant passes, and has an annular spiral groove 102 spaced apart at regular intervals along the longitudinal direction on the outer surface thereof. A plurality of protrusions 103 protrude along the spiral groove 102, and first and second collecting grooves 104a and 104b are formed at both ends of the spiral groove 102 to collect gas or liquid refrigerant. do.

The inner tube 100 is cooled by passing a gas or liquid refrigerant into the flow path hole 101.

The inner tube 100 collects the gas or liquid refrigerant supplied from the outside into the first collecting groove 104a, so that the gas or the liquid refrigerant is continuously supplied to the spiral groove 102, and the second collecting groove ( The gas or liquid refrigerant cooled by 104b) is collected to continuously discharge the gas or liquid refrigerant to the outside.

The width of the first and second collecting grooves 104a and 104b may be wider than the diameter of the through hole 201 of the outer tube 200.

The first and second collecting grooves 104a and 104b are formed in any one of a hemispherical shape, an oval shape, and a polygonal shape.

A plurality of protrusions 103 'protrude from the outer surfaces of the first and second collecting grooves 104a and 104b, so that the gas or liquid refrigerant collected into the first collecting grooves 104a is the protrusion 103'. ) Is continuously collided and supplied to the spiral groove 102 after heat exchange to increase the cooling efficiency, and the cooled gas or liquid refrigerant collected into the second collecting groove 104b is discharged from the second collecting groove 104b. By colliding with the protrusion 103 ′, it is continuously cooled and discharged to the outside.

The inner tube 100 passes through a gas or liquid refrigerant to the spiral groove 102, whereby a gas or liquid refrigerant collides with a plurality of protrusions 103 formed along the spiral groove 102, thereby enabling rapid cooling.

As the interval between the spiral grooves 102 becomes narrow, the inner tube 100 increases the temperature change rate of the gas or liquid refrigerant that is cooled by the spiral grooves 102, As the spacing increases, the rate of change of the gas or liquid refrigerant to be cooled decreases.

An interval and an angle of the spiral groove 102 may be adjusted and manufactured according to a user's selection.

The inner tube 100 is a temperature reduction rate of the gas or liquid refrigerant is changed according to the number of the projections (103, 103 ') heat-exchanging with the gas, the number of the projections (103, 103') is adjusted to the user's selection produced Can be.

The protrusions 103 and 103 'of the inner tube 100 are formed of any one of a circular, hemispherical, elliptical or polygonal shape.

The inner tube 100 is formed of any one material of aluminum, copper or copper alloy.

The inner tube 100 is preferably made of a copper material excellent in thermal conductivity, it may be made of a non-ferrous metal material according to the user's selection.

The outer tube 200 is in a hollow shape and tightly coupled to the outer surface of the inner tube 100, and through holes communicating with the first and second collecting grooves 104a and 104b of the inner tube 100 at both ends of the outer circumferential surface thereof. 201) is formed.

The outer tube 200 is tightly coupled to the outer surface of the inner tube 100 to guide the spiral groove 102 to the gas or liquid refrigerant via.

The outer tube 200 receives gas or liquid refrigerant through one of the through holes 201, and discharges gas or liquid refrigerant through another one of the through holes 201.

The outer pipe 200 is provided with an inlet pipe 301 and an outlet pipe 302 in the through hole 201, respectively.

The outer tube 200 is preferably formed in a cylindrical shape having an outer surface.

The outer tube 200 has a diameter of the through hole 201 is smaller than the width of the first and second collecting grooves 104a and 104b of the inner tube 100.

The double pipe heat exchange pipe according to the present invention configured as described above is used as follows, and in the present invention, the double pipe heat exchange pipe is installed as an example in a vehicle cooling apparatus.

First, a compressor 400 for compressing gas is provided, and a condenser 500 is connected to the compressor 400 to condense the gas discharged from the compressor 400, and the condenser 500 The outer tube 200 is connected to receive the liquid refrigerant of the high temperature and high pressure discharged from the condenser 500, the liquid refrigerant is provided in the outer tube 200 and supplied to the outer tube 200 An inner tube 100 is provided to pass through the spiral groove 102 formed on the outer surface, and is connected to the outer tube 200 to pass through the spiral groove 102 of the inner tube 100 to discharge the liquid refrigerant. An expansion valve 600 is installed to reduce the pressure / expansion to a low temperature low pressure gas refrigerant. An evaporator 700 is connected to the expansion valve 600 to change the low temperature low pressure gas refrigerant into a low temperature low pressure liquid refrigerant. Is installed, the evaporator 700 is Be in communication with rogong 101 doedoe connected to one end of the inner tube 100, a structure in which the other end is connected to the compressor 400. At this time, when the cooling device is operated, the high temperature and high pressure gas discharged from the compressor 400 is supplied to the condenser 500, and the high temperature and high pressure liquid refrigerant condensed through the condenser 500 is supplied to the outer tube ( 200 is supplied to the outer tube 200, the high-temperature, high-pressure liquid refrigerant is passed through the spiral groove 102 of the inner tube 100, it is continuously crashed into a plurality of protrusions 103 to cool rapidly And, the cooled liquid refrigerant is converted into a low temperature low pressure gas refrigerant through the expansion valve 600 is supplied to the evaporator 700, the low temperature low pressure liquid refrigerant discharged from the evaporator 700 is the inner tube ( Passed through the passage hole 101 of 100 and re-transmitted to the compressor 400, the inner tube 100 is cooled, and the liquid refrigerant passing through the spiral groove 102 of the cooled inner tube 100 is Cooled by heat exchange.

At this time, the above-described process is repeated to cool the air blown to the indoor side of the vehicle.

In addition, the low-temperature low-pressure gas refrigerant introduced into the evaporator 700, the heat exchanged with the air blown to the vehicle interior side to evaporate, and at the same time to cool the air blown into the vehicle interior by the endothermic action by the latent heat of evaporation of the refrigerant, It is changed into a low pressure refrigerant.

In addition, the liquid refrigerant supplied through the outer tube 200 is collected in the first collecting groove 104a of the inner tube 100, and the liquid refrigerant collected in the first collecting groove 104a is the spiral groove. The liquid refrigerant supplied to (102) and cooled by a heat exchange action and cooled by the spiral groove (102) is collected in the second collecting groove (104b) and the liquid collected in the second collecting groove (104b). The refrigerant is supplied to the expansion valve 600 through the through hole 201 of the outer tube 200.

At this time, the flow of the liquid refrigerant supplied to the spiral groove 102 and the expansion valve 600 is continuous by the liquid refrigerant collected in the first and second collecting grooves 104a and 104b.

In addition, the first and second collecting grooves 104a and 104b may be formed in one of a hemispherical shape, an oval shape, or a polygonal shape according to a user's selection.

On the other hand, the inner tube 100 is the width of the first and second collecting grooves (104a, 104b) is formed wider than the diameter of the through-hole 201 of the outer tube 200, the amount of liquid refrigerant is increased Thus, the supply amount of the liquid refrigerant supplied to the spiral groove 102 and the expansion valve 600 is prevented from being lowered.

In this case, a plurality of protrusions 103 ′ protrude from the outer surfaces of the first and second collecting grooves 104a and 104b so that the gas or liquid refrigerant collected into the first collecting grooves 104a may be formed in the protrusions. 103 ') is continuously collided and supplied to the spiral groove 102 after the heat exchange action to increase the cooling efficiency, and the cooled gas or liquid refrigerant collected into the second collecting groove 104b is the second collecting groove 104b. ) By being impinged on the protrusion 103 'is continuously cooled and discharged to the outside.

In addition, as the interval between the spiral grooves 102 of the inner tube 100 is narrowed, the temperature change rate of the gas or liquid refrigerant that is cooled by the spiral grooves 102 is increased, and the spiral grooves 102 As the spacing increases, the rate of change of the gas or liquid refrigerant to be cooled decreases.

At this time, the spacing and angle of the spiral groove 102 may be adjusted and manufactured according to the user's selection.

In addition, the inner tube 100 is a temperature reduction rate of the gas or liquid refrigerant is changed in accordance with the number of the projections (103, 103 ') heat exchange with the gas, the number of the projections (103, 103') is adjusted according to the user's selection The protrusions 103 and 103 'may be formed in any one of a circular, hemispherical, elliptical or polygonal shape.

In this case, the temperature drop rate of the gas or liquid refrigerant may be changed according to the shape of the protrusions 103 and 103 ′.

In addition, the inner tube 100 may be formed of any one material of aluminum, copper or copper alloy, preferably made of a copper material having excellent thermal conductivity, and may be made of a nonferrous metal material according to a user's selection. .

Subsequently, the outer tube 200 is tightly coupled to the outer surface of the inner tube 100 to guide the gas or liquid refrigerant to the spiral groove 102 via the one or more through holes 201. The liquid coolant is supplied, but the gas or liquid coolant is discharged through another through hole 201.

At this time, it is preferable that the inlet pipe 301 and the outlet pipe 302 are installed in each of the through holes 201 to guide the supply and discharge of the liquid refrigerant.

In addition, the outer tube 200 is preferably formed in a cylindrical shape with an outer surface flat.

In addition, the outer tube 200 has a diameter of the through hole 201 is smaller than the width of the first and second collecting grooves 104a and 104b of the inner tube 100.

In the present invention, a state in which the double tube heat exchanger pipe is installed and used in a vehicle cooling apparatus has been described as an example. Accordingly, the low-temperature low-pressure liquid refrigerant passes through the flow path 101 of the inner tube 100, and the inner tube ( Although it has been described that the liquid refrigerant of high temperature and high pressure passes through the spiral groove 102 of 100, and the liquid refrigerant is cooled, a gaseous refrigerant may be supplied and used instead of the liquid refrigerant according to the cooling device.

As described above, the gas or liquid refrigerant supplied through the through hole 201 of the outer tube 200 is collected in the first collecting groove 104a of the inner tube 100 and supplied to the spiral groove 102. The structure in which the gas or liquid refrigerant cooled via the 102 is collected in the second collecting groove 104b and discharged through the through-hole 201 of the outer tube 200 is provided in the first tube of the inner tube 100. Gas or liquid refrigerant is collected into the second collecting grooves 104a and 104b to facilitate continuous supply and discharge, and a through-hole 201 punching operation through which gas or liquid refrigerant passes through an outer surface of the outer tube 200. It is easy to manufacture and the volume area is minimized because no separate processing is required for the outer tube (200).

The cooling tube according to the present invention described above is not limited to the above embodiments, and those skilled in the art to which the present invention pertains without departing from the gist of the present invention claimed in the utility model registration claims below. It will be said that there is a technical spirit of the present invention to the extent that anyone can make various changes.

100: inner tube 101: euro ball
102: spiral groove 103,103 ': protrusion
104a: first gathering groove 104b: second gathering groove
200: outer tube 201: through hole
301: inlet pipe 302: outlet pipe
400: compressor 500: condenser
600: expansion valve 700: evaporator

Claims (6)

  1. A flow path hole 101 through which a gas or liquid refrigerant passes is formed in a hollow shape, and an annular spiral groove 102 spaced apart at regular intervals along a longitudinal direction is formed on an outer surface thereof, and the spiral groove 102 is formed. Accordingly, a plurality of protrusions 103 are formed to protrude, and first and second collecting grooves 104a and 104b are formed at both ends of the spiral groove 102 to collect gas or liquid refrigerant. , An inner tube 100 having a plurality of protrusions 103 ′ protruding from the outer surfaces of the second collecting grooves 104a and 104b; and
    The through-hole 201 is formed in a hollow shape in close contact with the outer surface of the inner tube 100, and communicates with the first and second collecting grooves 104a and 104b of the inner tube 100 at both ends of the outer circumferential surface thereof. An outer tube 200;
    Double tube heat exchange pipe, characterized in that consisting of.
  2. The method of claim 1,
    Double tube heat exchange pipe, characterized in that the through-hole 201 of the outer tube 200 is smaller than the width of the first and second collecting grooves (104a, 104b) of the inner tube (100).
  3. delete
  4. The method of claim 1,
    The inner tube 100 is a double-tube heat exchange pipe, characterized in that formed of any one material of aluminum, copper or copper alloy.
  5. The method of claim 1,
    The first and second collecting grooves (104a, 104b) is a double tube heat exchange pipe, characterized in that formed in any one of hemispherical, oval or polygonal shape.
  6. The method of claim 1,
    The projection (103, 103 ') is a double tube heat exchange pipe, characterized in that formed in any one of a circular, hemispherical, oval or polygonal phase.
KR2020110006795U 2011-07-26 2011-07-26 Double tube type heat exchange pipe KR200459178Y1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR2020110006795U KR200459178Y1 (en) 2011-07-26 2011-07-26 Double tube type heat exchange pipe

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
KR2020110006795U KR200459178Y1 (en) 2011-07-26 2011-07-26 Double tube type heat exchange pipe
RU2012129344/06A RU2012129344A (en) 2011-07-26 2012-07-11 Two-tubed heat exchanger
US13/547,442 US20130025834A1 (en) 2011-07-26 2012-07-12 Double tube type heat exchange pipe
JP2012160258A JP2013029303A (en) 2011-07-26 2012-07-19 Double pipe-type heat exchanging pipe
CN2012102527941A CN102901382A (en) 2011-07-26 2012-07-20 Double tube type heat exchange pipe
EP12177930.0A EP2551622A3 (en) 2011-07-26 2012-07-26 Double tube type heat exchange pipe

Publications (1)

Publication Number Publication Date
KR200459178Y1 true KR200459178Y1 (en) 2012-03-22

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KR2020110006795U KR200459178Y1 (en) 2011-07-26 2011-07-26 Double tube type heat exchange pipe

Country Status (6)

Country Link
US (1) US20130025834A1 (en)
EP (1) EP2551622A3 (en)
JP (1) JP2013029303A (en)
KR (1) KR200459178Y1 (en)
CN (1) CN102901382A (en)
RU (1) RU2012129344A (en)

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KR101797177B1 (en) * 2016-03-21 2017-12-01 주식회사 평산 Double pipe heat exchanger method of maufacturing and the double pipe
CN107726893A (en) * 2016-08-10 2018-02-23 和承R&A有限公司 Double pipe heat exchanger and its manufacture method
WO2019004681A1 (en) * 2017-06-26 2019-01-03 엘지전자 주식회사 Heat exchange apparatus

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KR101600296B1 (en) * 2010-08-18 2016-03-07 한온시스템 주식회사 Double pipe heat exchanger and manufacturing method the same
SE1400002A1 (en) * 2013-01-02 2014-07-03 Swerea Mefos Ab Pressure vessels and ways to heat a gas in a pressurized line
GB2523107A (en) * 2014-02-12 2015-08-19 Eaton Ind Ip Gmbh & Co Kg Heat exchanger
WO2016011090A1 (en) * 2014-07-14 2016-01-21 Toma Hani Evaporator with heat exchange
EP3290854A4 (en) * 2015-04-28 2018-05-02 Panasonic Intellectual Property Management Co., Ltd. Heat exchanger and refrigeration cycle device using same
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