Swirl flow tube, swirl flow heat exchanger, swirl flow heater, and uses thereof

Abstract

The invention relates to a swirl flow tube, a swirl flow heat exchanger, a swirl flow heating tube, and uses thereof. The swirl flow tube comprises a first tube member forming a first passage with its two ends in communication. A first partition assembly is provided in the first passage and divides the first passage into at least two independent flow channels, the first partition assembly is helically distributed in the axial direction of the first tube member, the first partition assembly is fixed in close contact with an inner wall of the first tube member by means of diameter-reduction extrusion, and a gap between the inner wall of the first tube member and the first partition assembly is also eliminated by means of diameter-reduction extrusion. In the present invention, the first partition assembly divides the first tube member into a plurality of independent flow channels to increase the heat transfer path length. In addition, the first partition assembly and a second partition assembly are helically distributed in the axial direction to generate turbulence in a fluid, such that the fluid advances helically around an axis, thereby enhancing a heat transfer coefficient between the fluid and a tube wall and improving the heat exchange efficiency. In addition, the first partition assembly and the second partition assembly can increase the structural strength of the heat exchanger.

Description

Flow-through tubes, flow-through heat exchangers, flow-through heaters and their applications Technical Field

[0001] This invention relates to the field of thermal management system development and design, specifically to flow-through tubes, flow-through heat exchangers, flow-through heaters, and their applications. Background Technology

[0002] Traditional heat exchange components are mostly straight tubes, and heat exchange occurs only through the tube wall. To increase heat exchange time, bent tubes or threaded inner tubes are used, which improves efficiency but doesn't achieve high-efficiency heat conversion. For better heat exchange, the size of the heat exchange component needs to be increased, and the rising prices of metal products in recent years have led to continuously increasing production costs. To reduce the overall size and production cost of the heating element, flow-through tubes, flow-through heat exchangers, flow-through heaters, and their applications have been designed and developed. Summary of the Invention

[0003] To address the aforementioned technical problems, this invention proposes a flow-around tube, a flow-around heat exchanger, a flow-around heating tube, and their applications. The technical problem to be solved by this invention is achieved through the following technical solution:

[0004] A flow-around tube includes a first pipe fitting connected end-to-end to form a first channel. The first channel is provided with a first partition assembly, which divides the first channel into at least two independent flow channels. The first partition assembly is spirally distributed along the axis of the first pipe fitting. The first partition assembly is fixed to the inner wall of the first pipe fitting by reducing the diameter of the first pipe fitting, thereby eliminating the gap between the inner wall of the first pipe fitting and the first partition assembly. Eliminating the gap allows the first partition assembly to transfer heat to the inner wall of the first pipe fitting through its contact surface with the first pipe fitting, increasing the heat exchange area and causing the fluid to advance in a spiral shape around the axis to improve heat exchange efficiency.

[0005] A flow-around heat exchanger includes a second tube forming a second channel, with a first tube distributed within the second channel. A second partition assembly is distributed between the second and first tubes, spirally distributed along the axis of the second tube. By reducing the diameter of the second tube and extruding it, the second partition assembly is made to fit against the outer wall of the first tube and the inner wall of the second tube, respectively, while eliminating the gaps between the second partition assembly and the outer and inner walls of the first and second tubes. Eliminating the gaps allows the second partition assembly to transfer heat through the outer wall of the first tube to the inner wall of the second tube, increasing the heat exchange area and causing the fluid to move spirally around the axis to improve heat exchange efficiency.

[0006] The area between the outer wall of the first pipe fitting and the inner wall of the second pipe fitting is sealed at both ends. The outer wall of the second pipe fitting is provided with an external interface and an external interface for fluid to enter and exit.

[0007] The No. 1 external interface and the No. 2 external interface are located near the beginning and end of the No. 2 pipe fitting.

[0008] The fluid inflow and outflow directions of external interfaces No. 1 and No. 2 are opposite to those of pipe No. 1.

[0009] A flow-around heater includes a heating tube and a third pipe fitting forming a third channel. The heating tube is distributed within the third channel, and a third partition assembly is distributed between the heating tube and the third pipe fitting. The third partition assembly is spirally distributed along the axis of the third pipe fitting. By reducing the diameter of the third pipe fitting, the third partition assembly is made to fit against the outer wall of the heating tube and the inner wall of the third pipe fitting, respectively, thereby eliminating the gap between the third partition assembly and the outer wall of the heating tube and the inner wall of the third pipe fitting. The heat from the heating tube can be exchanged with the fluid simultaneously through the third partition assembly, the outer wall of the heating tube, and the inner wall of the third pipe fitting, increasing the heat exchange area and causing the fluid to advance spirally around the axis, thus improving the heat exchange efficiency. The area enclosed by the inner wall of the third pipe fitting and the outer wall of the heating tube is sealed at both ends.

[0010] The outer wall of the No. 3 pipe fitting is provided with No. 3 external interface and No. 4 external interface for fluid inlet and outlet.

[0011] This invention provides the application of flow bypass tubes in automotive thermal management systems, air conditioners, heaters, water heaters, water dispensers, coffee machines, chillers, and HVAC systems.

[0012] This invention provides applications of flow-through heat exchangers in automotive thermal management systems, air conditioners, heaters, water heaters, water dispensers, chillers, and HVAC systems.

[0013] This invention provides the application of a flow-through heater in automotive thermal management systems, air conditioners, heaters, water heaters, water dispensers, and coffee machines.

[0014] The beneficial effects of the present invention are as follows: In the present invention, the first partition component divides the first pipe into multiple independent passages, which can increase the heat exchange stroke. At the same time, the first partition component and the second partition component are spirally distributed along the axial direction, which can generate turbulence in the fluid, causing the fluid to move forward in a spiral shape around the axis, thereby enhancing the heat transfer coefficient between the fluid and the pipe wall and improving the heat exchange efficiency. Meanwhile, the first partition component and the second partition component can improve the strength of the heat exchanger.

[0015] In this invention, the gaps between the No. 1 partition assembly, the No. 2 partition group, and the No. 3 partition assembly and the No. 1 pipe fitting, the No. 2 pipe fitting, and the No. 3 pipe fitting are eliminated by the diameter reduction extrusion method. Heat can be conducted between the No. 1 partition assembly, the No. 2 partition group, and the No. 3 partition assembly and the pipe wall, which significantly increases the heat exchange area and improves the heat exchange efficiency. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 is a schematic diagram of the three-dimensional structure of the flow tube of the present invention;

[0018] Figure 2 is a three-dimensional structural schematic diagram of the first separator component of the present invention;

[0019] Figure 3 is a schematic diagram of the three-dimensional structure of the first separator component of the present invention.

[0020] Figure 4 is a three-dimensional structural diagram of the flow-through heat exchanger of the present invention.

[0021] Figure 5 is a schematic cross-sectional view of the flow-through heat exchanger of the present invention.

[0022] Figure 6 is a second schematic cross-sectional view of the flow-through heat exchanger of the present invention;

[0023] Figure 7 is a partial three-dimensional structural schematic diagram of the flow-through heat exchanger of the present invention;

[0024] Figure 8 is a schematic diagram of the three-dimensional structure of the flow heater of the present invention;

[0025] Figure 9 is a schematic cross-sectional view of the flow heater of the present invention;

[0026] Figure 10 is a partial three-dimensional structural diagram of the flow heater of the present invention.

[0027] The diagram shows: 1. Channel 1; 2. Fitting 1; 3. Independent flow channel; 4. Separator 1; 5. Channel 2; 6. Fitting 2; 7. Separator 2; 8. Separator 3; 9. Heating tube; 10. Fitting 3; 11. Channel 3; 61. External interface 1; 62. External interface 2; 101. External interface 3; 102. External interface 4. Detailed Implementation

[0028] To enable those skilled in the art to better understand the technical solutions of the present invention, the present invention will be described more clearly and completely below with reference to the accompanying drawings in the embodiments. Of course, the described embodiments are only a part of the present invention and not all of it. Based on this embodiment, other embodiments obtained by those skilled in the art without creative effort are all within the protection scope of the present invention.

[0029] As shown in Figures 1 to 3, a flow-around tube includes a first pipe fitting 2 connected end-to-end to form a first channel 1. A first partition component 4 is provided within the first channel 1, dividing the first channel 1 into at least two independent flow channels 3. The first partition component 4 is spirally distributed along the axis of the first pipe fitting 2. By reducing the diameter of the first pipe fitting 2, the first partition component 4 is made to fit and fix itself to the inner wall of the first pipe fitting 2, simultaneously eliminating the gap between the inner wall of the first pipe fitting 2 and the first partition component 4, increasing the heat exchange area and causing the fluid to advance spirally around the axis to improve heat exchange efficiency. Eliminating the gap allows the first partition component 4 to transfer heat to the inner wall of the first pipe fitting 2 through its contact surface, increasing the heat exchange area. The first pipe fitting 2 is open at both ends, and the fluid is connected to the ports of the first pipe fitting 2 via pipes to achieve fluid inflow and outflow. As shown in Figures 2 and 3, the cross-section of the first partition component 4 is I-shaped, cross-shaped, star-shaped, or similar.

[0030] As shown in Figures 4 to 7, the flow-around heat exchanger includes a second pipe 6 forming a second channel 5. A first pipe 2 is distributed within the second channel 5. A second partition assembly 7 is distributed between the second pipe 6 and the first pipe 2. The second partition assembly 7 is spirally distributed along the axial direction of the second pipe 6. By reducing the diameter of the second pipe 6, the second partition assembly 7 is made to fit against the outer wall of the first pipe 2 and the inner wall of the second pipe 6, respectively. At the same time, the gaps between the second partition assembly 7 and the outer wall of the first pipe 2 and the inner wall of the second pipe 6 are eliminated. Eliminating the gaps allows the second partition assembly 7 to transfer heat from the outer wall of the first pipe 2 to the inner wall of the second pipe 6, increasing the heat exchange area and causing the fluid to move in a spiral shape around the axis to improve the heat exchange efficiency. As shown in Figure 5, the fluid in pipe fitting 6 enters and exits through external ports 61 and 62, and exchanges heat with the fluid in pipe fitting 2. Separating components 7 and 4 are spirally distributed along the axis, increasing the heat exchange stroke and area, and causing the fluid to spiral around the axis, further promoting heat exchange. This also increases fluid turbulence, forming vortices that facilitate scale removal. Separating components 7 and 4 are fitted with pipe fitting 6 and 2 through a diameter reduction and extrusion method. This simple and efficient method effectively fixes separating components 7 and 4 without creating gaps, and allows pipe fitting 6 and 2 to form independent channels, enabling the two fluids to spiral around the axis in opposite directions, preventing turbulence and improving heat exchange efficiency.

[0031] The area between the outer wall of pipe fitting 2 and the inner wall of pipe fitting 6 is sealed at both ends. The outer wall of pipe fitting 6 is provided with external interface 61 and external interface 62 for fluid to enter and exit. The area between the outer wall of pipe fitting 2 and the inner wall of pipe fitting 6 can be sealed by adding a sealing ring or by welding. Alternatively, as shown in Figure 5, the area between the outer wall of pipe fitting 2 and the inner wall of pipe fitting 6 can be sealed at both ends by extending the length of pipe fitting 6 and welding it to the end of pipe fitting 2.

[0032] The first external interface 61 and the second external interface 62 are located near the beginning and end of the second pipe fitting 6.

[0033] The fluid inlet and outlet directions of external interfaces 61 and 62 are opposite to those of pipe fitting 2, which can further increase the temperature difference between the inlet and outlet of pipe fitting 6 and pipe fitting 2, thereby improving heat exchange efficiency.

[0034] The gap between the inner wall of the first partition component 4 and the inner wall of the first pipe fitting 2 is eliminated by diameter reduction extrusion. At the same time, the gap between the second partition component 7 and the outer wall of the first pipe fitting 2 and the inner wall of the second pipe fitting 6 is also eliminated by diameter reduction extrusion. The first medium enters and exits from the first and second ends of the first pipe fitting 2, and exchanges heat with the first partition component 4 and the inner wall of the first pipe fitting 2. Meanwhile, the first partition component 4 exchanges heat with the inner wall of the first pipe fitting 2 through the contact surface, thus expanding the heat exchange area. The second medium enters and exits the second pipe fitting 6 through the first external interface 61 and the second external interface 62, and exchanges heat. The second partition component 7 absorbs heat from the first pipe fitting 2 through the contact surface with the inner wall of the first pipe fitting 2 and transfers heat through the contact point between the second partition component 7 and the inner wall of the second pipe fitting 6. This allows the second medium to exchange heat not only with the outer wall of the first pipe fitting 2, but also with the second partition component 7 and the second pipe fitting 6, thus increasing the heat exchange area.

[0035] As shown in Figures 8 to 10, a flow-around heater includes a heating tube 9 and a third pipe fitting 10 forming a third channel 11. The heating tube 9 is distributed within the third channel 11, and a third partition assembly 8 is distributed between the heating tube 9 and the third pipe fitting 10. The third partition assembly 8 is spirally distributed along the axial direction of the third pipe fitting 10. By reducing the diameter of the third pipe fitting 10, the third partition assembly 8 is made to fit against the outer wall of the heating tube 9 and the inner wall of the third pipe fitting 10, respectively. At the same time, the gap between the third partition assembly 8 and the outer wall of the heating tube 9 and the inner wall of the third pipe fitting 10 is eliminated. The heat of the heating tube 9 can exchange heat with the fluid simultaneously through the third partition assembly 8, the outer wall of the heating tube 9, and the inner wall of the third pipe fitting 10, thereby increasing the heat exchange area and causing the fluid to advance spirally around the axis, thus improving the heat exchange efficiency. The area enclosed by the inner wall of the third pipe fitting 10 and the outer wall of the heating pipe 9 is sealed at both ends. Water flows through the third external interface 101 and the fourth external interface 102 to enter and exit the area between the third pipe fitting 10 and the heating pipe 9. Through the contact surface between the third partition component 8 and the third pipe fitting 10, the third partition component 8 transfers heat from the heating pipe 9 to the third pipe fitting 10, increasing the heat exchange area. The heating pipe 9 generates heat, and the fluid enters the area between the third pipe fitting 10 and the heating pipe 9 for heat exchange. At the same time, through the third partition component 8 and the third pipe fitting 10, the heat exchange stroke and area are increased, and the fluid moves forward in a spiral around the axis, significantly improving the heat exchange efficiency.

[0036] The outer wall of the No. 3 pipe fitting 10 is provided with a No. 3 external interface 101 and a No. 4 external interface 102 for fluid to enter and exit.

[0037] This invention provides the application of flow bypass tubes in automotive thermal management systems, air conditioners, heaters, water heaters, water dispensers, coffee machines, chillers, and HVAC systems.

[0038] This invention provides applications of flow-through heat exchangers in automotive thermal management systems, air conditioners, heaters, water heaters, water dispensers, chillers, and HVAC systems.

[0039] This invention provides the application of a flow-through heater in automotive thermal management systems, air conditioners, heaters, water heaters, water dispensers, and coffee machines.

[0040] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely prisms of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A flow-around tube, characterized in that: The system includes a first pipe fitting (2) that is connected end to end to form a first channel (1). A first partition component (4) is provided in the first channel (1). The first partition component (4) divides the first channel (1) into at least two independent flow channels (3). The first partition component (4) is fixed to the inner wall of the first pipe fitting (2) by reducing the diameter of the first pipe fitting (2). At the same time, the gap between the inner wall of the first pipe fitting (2) and the first partition component (4) is eliminated. Eliminating the gap allows the first partition component (4) to transfer heat to the inner wall of the first pipe fitting (2) through the contact surface with the first pipe fitting (2), thereby increasing the heat exchange area and making the fluid move forward in a spiral shape around the axis to improve the heat exchange efficiency.

2. The flow-through heat exchanger using the flow-through tube as described in claim 1, characterized in that: The system includes a second pipe fitting (6) forming a second channel (5), a first pipe fitting (2) distributed within the second channel (5), and a second partition assembly (7) distributed between the second pipe fitting (6) and the first pipe fitting (2). The second partition assembly (7) is spirally distributed along the axis of the second pipe fitting (6). By reducing the diameter of the second pipe fitting (6), the second partition assembly (7) is made to fit against the outer wall of the first pipe fitting (2) and the inner wall of the second pipe fitting (6) respectively. At the same time, the gap between the second partition assembly (7) and the outer wall of the first pipe fitting (2) and the inner wall of the second pipe fitting (6) is eliminated. Eliminating the gap allows the second partition assembly (7) to transfer heat to the inner wall of the second pipe fitting (6) through the outer wall of the first pipe fitting (2), increasing the heat exchange area and making the fluid spiral around the axis to improve the heat exchange efficiency. The area between the outer wall of the first pipe fitting (2) and the inner wall of the second pipe fitting (6) is sealed at both ends. The outer wall of the second pipe fitting (6) is provided with an external interface (61) and an external interface (62) for fluid to enter and exit. The first external interface (61) and the second external interface (62) are located near the beginning and end of the second pipe fitting (6); The fluid inflow and outflow directions of external interfaces No. 1 (61) and No. 2 (62) are opposite to those of pipe fitting No. 1 (2).

3. A flow-through heater, characterized in that: The system includes a heating tube (9) and a third pipe fitting (10) forming a third channel (11). The heating tube (9) is distributed within the third channel (11). A third partition assembly (8) is distributed between the heating tube (9) and the third pipe fitting (10). The third partition assembly (8) is spirally distributed along the axial direction of the third pipe fitting (10). By reducing the diameter of the third pipe fitting (10), the third partition assembly (8) is respectively connected to the outer wall of the heating tube (9) and the third pipe fitting (10). The inner wall of component (10) is fitted together, which eliminates the gap between the third partition component (8) and the outer wall of the heating tube (9) and the inner wall of the third pipe component (10). The heat of the heating tube (9) can be exchanged with the fluid simultaneously through the third partition component (8), the outer wall of the heating tube (9) and the inner wall of the third pipe component (10), increasing the heat exchange area and making the fluid move forward in a spiral around the axis to improve the heat exchange efficiency. The area enclosed by the inner wall of the third pipe component (10) and the outer wall of the heating tube (9) is sealed at both ends. The outer wall of the No. 3 pipe fitting (10) is provided with a No. 3 external interface (101) and a No. 4 external interface (102) for fluid to enter and exit.

4. The application of the bypass tube according to claim 1 in automotive thermal management systems, air conditioners, heaters, water heaters, water dispensers, coffee machines, chillers, and HVAC systems.

5. The application of the flow-through heat exchanger according to claim 2 in automotive thermal management systems, air conditioners, heaters, water heaters, water dispensers, chillers, and HVAC systems.

6. The application of the flow-through heater according to claim 3 in automotive thermal management systems, air conditioners, heaters, water heaters, water dispensers, and coffee machines.

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