Integrated pipe for heat exchange

Abstract

The present invention relates to an integrated pipe for heat exchange, the integrated pipe comprising: a first pipe unit through which a first fluid flows; a first expanded pipe unit that is expanded so that a first connection unit is connected to both ends of the inside of the first pipe unit; a second pipe unit which is integrated with one side surface of the first pipe unit and through which a second fluid flows; and a second expanded pipe unit that is expanded so that a second connection unit is connected to both ends of the inside of the second pipe unit. Therefore, the first pipe unit and the second pipe unit of the integrated pipe for heat exchange are compressed into a single body, and the expanded pipe units are formed at both ends. Accordingly, the present invention provides the effects of simplifying the manufacturing process for the integrated pipe for heat exchange, reducing the weight of the pipe, and improving the productivity and marketability of the pipe.

Description

Integrated piping for heat exchange

[0001] The present invention relates to an integrated pipe for heat exchange, and more specifically, to an integrated pipe for heat exchange used in heat exchange equipment such as a refrigerator or air conditioner, in which a capillary tube for refrigerant circulation and a suction tube for heat dissipation are respectively connected at both ends.

[0002] Typically, in a refrigeration cycle, refrigerant circulates through a compressor, condenser, expansion valve, and evaporator. Heat exchange occurs between the subcooled, low-pressure, cold refrigerant exiting the evaporator and the high-pressure, warm refrigerant entering the expansion valve from the condenser. This lowers the temperature of the refrigerant entering the evaporator, thereby improving cooling performance. To achieve this refrigerant heat exchange, double-pipe systems are used in refrigeration piping systems.

[0003] In addition, among heat exchangers, the fin pipe type heat exchanger and the cooling and heating heat exchanger using the radiating fin cause a cooling effect when the heat of the fluid passing through the inside of the fin pipe type heat exchanger is radiated into the air or liquid through the external radiating fin, and when the heat exchange is increased through the radiating fin to the guide hole and the heat is absorbed, the fluid is rapidly heated to perform heat exchange, and is a device widely used in effective condensers or evaporators of air conditioners such as refrigerators or air conditioners, radiators of automobiles, rapid heaters, and heat sinks for cooling electronic components.

[0004] Among these, heat exchangers that are formed by pre-processing and drawing a fin pipe type heat exchanger to form a heat dissipation fin as an integral part have high heat transfer efficiency and are mainly used in evaporation units for air conditioners, radiators, and dehumidifiers.

[0005] However, the heat exchanger in which the heat dissipation fins are integrally formed is such that when the fluid passes through the inside of the fin pipe type heat exchanger, the liquid or gaseous fluid does not evenly contact the inner surface of the fin pipe type heat exchanger by 100% or more to exchange heat, and instead, some of the fluid passes quickly to the center of the tube as is, which reduces heat transfer with the external heat dissipation fins. This can be seen as the biggest problem in the heat exchange of existing fluids and heat exchangers for fin pipes.

[0006] That is, in general, when there is no device inside the fluid heat exchanger that causes the fluid to vortex periodically, some of the heat remaining on the surface of the fluid is well transferred to the fin pipe type heat exchanger, but the heat in the inner center of the oil is not well transferred, which has limitations in increasing the heat transfer efficiency.

[0007] In addition, the capillary tube of this heat exchanger is widely used in small-capacity electric refrigerators, room air conditioners, car air conditioners, showcases, etc. When considering the efficiency of the refrigeration device, it is better to constantly adjust the manual expansion valve or use a thermostatic automatic expansion valve, but in small-capacity refrigeration devices, the capillary tube is widely used in terms of cost, and it is also the simplest in structure, so there are few parts to fail, and during compressor stop, the high-pressure and low-pressure parts are pressure balanced through the capillary tube, making it easy to start the compressor.

[0008] Recently, attempts have been made to replace copper in terms of material diversification, and aluminum is the metal that is the most abundant among the elements that make up the Earth's crust, and not only does it have excellent properties such as processability, lightness, and conductivity, but it is also easy to alloy with other metals and can have various material properties depending on the composition of the alloying elements, so it is attracting attention as a material to replace copper capillaries.

[0009] However, when aluminum alloy is used to manufacture capillaries through an extrusion process using a hot working method, the characteristics and corrosion resistance of the aluminum alloy can be maintained, but the diameter of the capillary is small, so the extrusion rate decreases due to a low extrusion ratio, making it impossible to manufacture capillaries or requiring additional processes, which increases manufacturing costs.

[0010] In particular, for aluminum capillaries to replace copper, the aluminum alloy must maintain properties such as corrosion resistance even after being processed into aluminum capillaries. Therefore, optimization of the process is required to manufacture capillaries that meet the design diameter specifications while maintaining the raw material properties and corrosion resistance of the aluminum alloy.

[0011] As a prior art for solving this problem, there is Patent Publication No. 10-2021-0016847, but the prior art does not solve the problem of joining because it uses aluminum capillaries with different inner diameters by simultaneously extruding them and independently compressing them to join multiple aluminum capillaries with different inner diameters.

[0012] The present invention has been devised to solve the above-mentioned conventional problems, and its purpose is to provide an integrated heat exchange pipe that simplifies the manufacturing process of the integrated heat exchange pipe and reduces the weight of the pipe, thereby improving the productivity and marketability of the pipe, by integrally compressing the first pipe section and the second pipe section of the integrated heat exchange pipe and forming an expansion section at both ends.

[0013] In addition, another object of the present invention is to provide an integrated heat exchange pipe that can be applied to multiple heat exchange facilities to improve heat exchange performance while reducing manufacturing costs and manufacturing time by integrally compressing the first pipe section, the second pipe section, and the third pipe section of the integrated heat exchange pipe and forming expansion sections at both ends, thereby improving the manufacturing performance of the heat exchange facility.

[0014] In addition, the present invention provides an integrated pipe for heat exchange that can improve the workability of the expanded pipe by forming the expanded pipe with a predetermined size ratio so that the connecting portions are respectively connected to both ends of the pipe, and at the same time, can improve the sealing performance and connection performance between the expanded pipe and the connecting portion by facilitating the joining between the expanded pipe and the connecting portion.

[0015] In order to achieve the above object, the present invention is characterized by comprising an integrated pipe for heat exchange, comprising: a first pipe section (10) through which a first fluid flows; a first expansion section (20) formed to be expanded so that a first connection section (30) is connected to both ends inside the first pipe section (10); a second pipe section (40) formed integrally on one side of the first pipe section (10) and through which a second fluid flows; and a second expansion section (50) formed to be expanded so that a second connection section (60) is connected to both ends inside the second pipe section (40).

[0016] In addition, the present invention is characterized in that it further includes a third pipe section (70) integrally formed on the other side of the first pipe section (10) and through which a third fluid flows; and a third expansion section (80) formed to be expanded so that a third connection section (90) is connected to both ends of the inside of the third pipe section (70).

[0017] The third expansion pipe part (80) of the present invention is characterized in that its inner diameter is formed to be 1.2 to 3.0 times larger than the inner diameter size of the third pipe part (70).

[0018] The first expansion pipe part (20) of the present invention is characterized in that its inner diameter is formed to be 1.05 to 1.50 times larger than the inner diameter size of the first pipe part (10).

[0019] The second expansion member (50) of the present invention is characterized in that its inner diameter is formed to be 1.2 to 3.0 times larger than the inner diameter size of the second pipe member (40).

[0020] As described above, the present invention simplifies the manufacturing process of an integrated heat exchange pipe and reduces the weight of the pipe by compressing the first pipe section and the second pipe section of the integrated heat exchange pipe as one piece and forming an expansion section at both ends, thereby providing an effect of improving the productivity and marketability of the pipe.

[0021] In addition, by compressing the first, second, and third pipe sections of the integrated heat exchange pipe integrally and forming expansion sections at both ends, it is possible to apply it to multiple heat exchange facilities to improve heat exchange performance while reducing manufacturing costs and manufacturing time, thereby providing the effect of improving the manufacturing performance of heat exchange facilities.

[0022] In addition, by forming the expansion pipe part with a predetermined size ratio so that the connection parts are connected to each end of the pipe part, the processing performance of the expansion pipe part is improved, and the connection between the expansion pipe part and the connection part is facilitated, thereby providing the effect of improving the sealing performance and connection performance between the expansion pipe part and the connection part.

[0023] Fig. 1 is a schematic diagram showing an integrated piping for heat exchange according to the first embodiment of the present invention.

[0024] Fig. 2 is a cross-sectional view showing an integrated piping for heat exchange according to the first embodiment of the present invention.

[0025] Figure 3 is a configuration diagram showing the connection state of an integrated pipe for heat exchange according to the first embodiment of the present invention.

[0026] Fig. 4 is an exploded view showing the connection state of an integrated pipe for heat exchange according to the first embodiment of the present invention.

[0027] Fig. 5 is a perspective view showing an integrated piping for heat exchange according to the first embodiment of the present invention.

[0028] Fig. 6 is a side view showing a piping section of an integrated piping for heat exchange according to the first embodiment of the present invention.

[0029] Fig. 7 is a side view showing an expansion portion of an integrated pipe for heat exchange according to the first embodiment of the present invention.

[0030] Fig. 8 is a cross-sectional view showing an expansion portion of an integrated pipe for heat exchange according to the first embodiment of the present invention.

[0031] Fig. 9 is a schematic diagram showing an integrated piping for heat exchange according to a second embodiment of the present invention.

[0032] Fig. 10 is a cross-sectional view showing an integrated piping for heat exchange according to a second embodiment of the present invention.

[0033] Fig. 11 is a schematic diagram showing the connection state of an integrated pipe for heat exchange according to the second embodiment of the present invention.

[0034] Fig. 12 is an exploded view showing the connection state of an integrated pipe for heat exchange according to the second embodiment of the present invention.

[0035] Fig. 13 is a perspective view showing an integrated piping for heat exchange according to a second embodiment of the present invention.

[0036] Fig. 14 is a side view showing a piping section of an integrated piping for heat exchange according to a second embodiment of the present invention.

[0037] Fig. 15 is a side view showing an expansion portion of an integrated pipe for heat exchange according to a second embodiment of the present invention.

[0038] Fig. 16 is a cross-sectional view showing an expansion portion of an integrated pipe for heat exchange according to a second embodiment of the present invention.

[0039] <Description of the main components of the drawing>

[0040] 10: 1st pipe section 20: 1st expansion pipe section

[0041] 30: First connection part 40: Second pipe part

[0042] 50: Second expansion section 60: Second connecting section

[0043] 70: Third pipe section 80: Third expansion pipe section

[0044] 90: Third connection

[0045] Hereinafter, a preferred embodiment of the present invention will be described in more detail with reference to the attached drawings.

[0046] FIG. 1 is a schematic diagram showing an integrated heat exchange pipe according to a first embodiment of the present invention, FIG. 2 is a cross-sectional view showing an integrated heat exchange pipe according to a first embodiment of the present invention, FIG. 3 is a schematic diagram showing a connection state of an integrated heat exchange pipe according to a first embodiment of the present invention, FIG. 4 is an exploded view showing a connection state of an integrated heat exchange pipe according to a first embodiment of the present invention, FIG. 5 is a perspective view showing an integrated heat exchange pipe according to a first embodiment of the present invention, FIG. 6 is a side view showing a pipe section of an integrated heat exchange pipe according to a first embodiment of the present invention, FIG. 7 is a side view showing an expansion section of an integrated heat exchange pipe according to a first embodiment of the present invention, and FIG. 8 is a cross-sectional view showing an expansion section of an integrated heat exchange pipe according to a first embodiment of the present invention.

[0047] FIG. 9 is a schematic diagram showing an integrated heat exchange pipe according to a second embodiment of the present invention, FIG. 10 is a cross-sectional view showing an integrated heat exchange pipe according to a second embodiment of the present invention, FIG. 11 is a schematic diagram showing a connection state of an integrated heat exchange pipe according to a second embodiment of the present invention, FIG. 12 is an exploded view showing a connection state of an integrated heat exchange pipe according to a second embodiment of the present invention, FIG. 13 is a perspective view showing an integrated heat exchange pipe according to a second embodiment of the present invention, FIG. 14 is a side view showing a piping section of an integrated heat exchange pipe according to a second embodiment of the present invention, FIG. 15 is a side view showing an expansion section of an integrated heat exchange pipe according to a second embodiment of the present invention, and FIG. 16 is a cross-sectional view showing an expansion section of an integrated heat exchange pipe according to a second embodiment of the present invention.

[0048] As shown in FIGS. 1 to 5, the integrated heat exchange pipe according to the first embodiment comprises a first pipe section (10), a first expansion pipe section (20), a second pipe section (40), and a second expansion pipe section (50), and is an integrated heat exchange pipe installed in refrigeration equipment, freezing equipment, cooling equipment, etc.

[0049] The first pipe section (10) is a pipe member through which the first fluid flows, and is made of a heat dissipation suction pipe made of aluminum material that is extruded and formed integrally with the second pipe section (40) to be used in a heat exchanger such as a refrigerator or air conditioner.

[0050] This first pipe section (10), as shown in Fig. 6, is made of a first pipe (11) that is extruded with a predetermined size of outer diameter (D11) and inner diameter (d11) to allow a heat exchange fluid to flow through it, which is installed in a refrigeration facility, a freezing facility, an air conditioning facility, etc.

[0051] The first expansion pipe (20) is a pipe member formed by expansion so that the first connection portion (30) is connected to each of the two ends inside the first pipe portion (10), and is expanded to have an outer diameter (D12) and an inner diameter (d12) of a predetermined size by the press-fitting of the expansion pipe equipment so that the first connection portion (30) made of copper is fitted and connected by welding.

[0052] This first expansion pipe (20) is made of a first expansion pipe (21) formed by expansion with a predetermined size of inner diameter (d12) into which a first connecting part (30) made of copper is fitted so that a heat exchange fluid for use in refrigeration equipment, freezing equipment, air conditioning equipment, etc. flows, as shown in Fig. 7.

[0053] As shown in Fig. 8, it is preferable that the inner diameter (d12) of the first expansion pipe (21) of the first expansion pipe (20) be formed to be 1.05 to 1.50 times larger than the inner diameter (d11) of the first pipe (11) of the first pipe section (10).

[0054] The second pipe section (40) is formed integrally on one side of the first pipe section (10) and is a pipe member through which the second fluid flows. It is made of a capillary tube for refrigerant circulation made of aluminum material that is extruded integrally with the first pipe section (10) to be used in a heat exchanger such as a refrigerator or air conditioner.

[0055] This second pipe section (40) is made of a second pipe (41) that is extruded with a predetermined size of outer diameter (D21) and inner diameter (d21) to allow a heat exchange fluid to flow through it, which is installed in a refrigeration facility, a freezing facility, an air conditioning facility, etc., as shown in FIG. 6.

[0056] In addition, it is preferable that the second pipe (41) be spaced apart from the center of the first pipe (11) by a predetermined distance (W1) that is 1.5 to 2.0 times larger than the size of the inner diameter (d21) of the second pipe (41) than half of the sum of the size of the inner diameter (d11) of the first pipe (11) and the size of the inner diameter (d21) of the second pipe (41), so as to minimize deformation or extrusion defects when the first pipe part (10) and the second pipe part (40) are extruded as one piece.

[0057] The second expansion member (50) is a pipe member that is expanded so that a second connection member (60) is fitted into both ends of the inside of the second pipe member (40) and connected by welding. The second connection member (60) made of copper is expanded by the press-fitting of the expansion device to have an outer diameter (D22) and an inner diameter (d22) of a predetermined size so that the second connection member (60) is fitted into both ends of the inside of the second pipe member (40) and connected by welding.

[0058] This second expansion pipe (50) is made of a second expansion pipe (51) formed by expansion with a predetermined inner diameter (d22) into which a second connecting part (60) made of copper is fitted so that a heat-exchange radiant fluid installed in a refrigeration facility, a freezing facility, an air conditioning facility, etc. flows, as shown in Fig. 7.

[0059] As shown in Fig. 8, it is preferable that the inner diameter (d22) of the second expansion pipe (51) of the second expansion pipe (50) be formed 1.2 to 3.0 times larger than the inner diameter (d21) of the second pipe (41) of the second pipe section (40).

[0060] As shown in FIGS. 9 to 13, the integrated heat exchange pipe according to the second embodiment is an integrated heat exchange pipe that includes a first pipe section (10), a first expansion section (20), a second pipe section (40), a second expansion section (50), a third pipe section (70), and a third expansion section (80), and is installed in a refrigeration facility, a freezing facility, an air conditioning facility, etc.

[0061] The first pipe section (10) is a pipe member through which the first fluid flows, and is made of an aluminum heat dissipation suction pipe that is integrally formed with the second pipe section (40) and the third pipe section (70) and is extruded to be used in a heat exchanger such as a refrigerator or air conditioner.

[0062] The second pipe section (40) is formed integrally on one side of the first pipe section (10) and is a pipe member through which the second fluid flows. It is made of a capillary tube for refrigerant circulation made of aluminum material that is extruded integrally with the first pipe section (10) and the third pipe section (70) to be used in a heat exchanger such as a refrigerator or air conditioner.

[0063] The configurations of the first pipe section (10), the first expansion section (20), the second pipe section (40), and the second expansion section (50) of the second embodiment are the same as those of the first embodiment, so a detailed description is omitted, and the configurations of the different third pipe section (70) and the third expansion section (80) are specifically described.

[0064] The third pipe section (70) is formed integrally on the other side of the first pipe section (10) and is a pipe member through which the second fluid flows. It is made of a capillary tube for refrigerant circulation made of aluminum that is extruded integrally with the first pipe section (10) and the second pipe section (40) to be used in a heat exchanger such as a refrigerator or air conditioner.

[0065] This third pipe section (70), as shown in Fig. 14, is made of a third pipe (71) that is extruded with a predetermined size of outer diameter (D31) and inner diameter (d31) to allow a heat exchanger fluid to flow through it, which is installed in a refrigeration facility, a freezing facility, an air conditioning facility, etc.

[0066] In addition, it is preferable that the third pipe (71) be spaced apart from the center of the first pipe (11) by a predetermined distance (W3) that is 1.5 to 2.0 times larger than the size of the inner diameter (d31) of the third pipe (71) than half of the sum of the size of the inner diameter (d11) of the first pipe (11) and the size of the inner diameter (d31) of the third pipe (71), so as to minimize deformation or extrusion defects when the first pipe section (10), the second pipe section (40), and the third pipe section (70) are extruded as one piece.

[0067] Accordingly, the separation distance (W2) between the second pipe (41) and the third pipe (71) is formed by the sum of the separation distance (W1) between the first pipe (11) and the second pipe (41) and the separation distance (W3) between the first pipe (11) and the third pipe (71).

[0068] The third expansion pipe (80) is a pipe member that is expanded so that a third connection part (90) is fitted into both ends of the inside of the third pipe part (70) and connected by welding. The third connection part (90) made of copper is expanded by the press-fitting of the expansion pipe equipment to have an outer diameter (D32) and an inner diameter (d32) of a predetermined size so that the third connection part (90) is fitted into both ends of the inside of the third pipe part (70) and connected by welding.

[0069] This third expansion pipe (80) is made of a third expansion pipe (81) formed by expansion with a predetermined size of inner diameter (d32) into which a third connecting part (90) made of copper is fitted so that a heat exchange fluid for use in refrigeration equipment, freezing equipment, air conditioning equipment, etc. flows, as shown in Fig. 15.

[0070] As shown in Fig. 16, it is preferable that the inner diameter (d32) of the third expansion pipe (81) of the third expansion pipe (80) be formed to be 1.2 to 3.0 times larger than the inner diameter (d31) of the third pipe (71) of the third pipe section (70).

[0071] As described above, according to the present invention, by compressing the first and second pipe sections of the integrated heat exchange pipe as one piece and forming expansion sections at both ends, the manufacturing process of the integrated heat exchange pipe is simplified, the pipe is made lighter, and the productivity and marketability of the pipe are improved.

[0072] In addition, by compressing the first, second, and third pipe sections of the integrated heat exchange pipe integrally and forming expansion sections at both ends, it is possible to apply it to multiple heat exchange facilities to improve heat exchange performance while reducing manufacturing costs and manufacturing time, thereby providing the effect of improving the manufacturing performance of heat exchange facilities.

[0073] In addition, by forming the expansion pipe part with a predetermined size ratio so that the connection parts are connected to each end of the pipe part, the processing performance of the expansion pipe part is improved, and the connection between the expansion pipe part and the connection part is facilitated, thereby providing the effect of improving the sealing performance and connection performance between the expansion pipe part and the connection part.

[0074] The present invention described above can be implemented in various other forms without departing from its technical spirit or essential characteristics. Therefore, the above embodiments are merely illustrative in all respects and should not be construed as limiting.

[0075] The present invention provides an integrated heat exchange pipe used in heat exchange equipment such as refrigerators and air conditioners, in which a capillary tube for refrigerant circulation and a suction tube for heat dissipation are respectively connected at both ends.

Claims

1. As an integrated pipe for heat exchange, A first pipe section (10) through which a first fluid flows; A first expansion pipe part (20) formed to be expanded so that a first connection part (30) is connected to both ends of the inside of the first pipe part (10); A second pipe section (40) integrally formed on one side of the first pipe section (10) and through which a second fluid flows; and An integrated pipe for heat exchange, characterized in that it includes a second expansion pipe (50) formed to be expanded so that a second connection portion (60) is connected to both ends of the inside of the second pipe portion (40).

2. In paragraph 1, A third pipe section (70) integrally formed on the other side of the first pipe section (10) and through which a third fluid flows; and An integrated pipe for heat exchange, characterized in that it further includes a third expansion pipe (80) formed to be expanded so that a third connection part (90) is connected to both ends of the inside of the third pipe part (70).

3. In paragraph 2, The third expansion pipe (80) is an integrated pipe for heat exchange, characterized in that the inner diameter is formed to be 1.2 to 3.0 times larger than the inner diameter size of the third pipe (70).

4. In paragraph 1, The first expansion pipe (20) is an integrated pipe for heat exchange, characterized in that the inner diameter is formed to be 1.05 to 1.50 times larger than the inner diameter size of the first pipe (10).

5. In paragraph 1, The above second expansion pipe (50) is an integrated pipe for heat exchange, characterized in that the inner diameter is formed to be 1.2 to 3.0 times larger than the inner diameter size of the above second pipe (40).

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