WO2023284388A1

WO2023284388A1 - Eddy current heat exchange apparatus

Info

Publication number: WO2023284388A1
Application number: PCT/CN2022/091903
Authority: WO
Inventors: 张宏森; 张宇婕
Original assignee: 张宏森; 张宇婕
Priority date: 2021-07-13
Filing date: 2022-05-10
Publication date: 2023-01-19
Also published as: CN115615217A; AU2022309902A1

Abstract

The present invention relates to an eddy current heat exchange apparatus, which comprises a composite pipe component and an eddy current guide structure provided in the composite pipe component; the composite pipe component comprises an outer pipe and an inner pipe provided in the outer pipe, wherein an eddy current channel extending along the axial direction of the inner pipe is formed between the outer pipe and the inner pipe, a fluid outlet is formed in the outer pipe at the end of the eddy current channel, the eddy current guide structure is located at the other end of the eddy current channel relative to the fluid outlet, and a fluid inlet that communicates with the eddy current channel is provided; a high-pressure fluid can be introduced from the fluid inlet, and the high-pressure fluid can generate eddy currents surrounding the periphery of the inner pipe when passing through the eddy current guide structure, thereby increasing flow paths of the high-pressure fluid in the eddy current channel. Thus, not only can the structure be effectively simplified, fabrication and maintenance costs can be reduced, but the heat transfer area between the high-pressure fluid and the outer pipe or the inner pipe can also be effectively increased, and heat exchange efficiency can be effectively improved.

Description

Vortex Heat Exchanger

technical field

The invention relates to a vortex heat exchange device, in particular to a vortex heat exchange device which performs fluid heat exchange in a vortex manner.

Background technique

A heat exchanger is mainly a device that transfers heat through the flow of fluid, thereby achieving the effect of cooling and heating. Today's heat exchangers are mainly provided with a heat flow channel and a cooling channel in a detour in a housing. The hot flow channel and the cooling channel are mutually interlaced and not communicated with each other, the hot flow channel of the heat exchanger can allow a hot fluid to pass through, and the cooling channel can pass a cold fluid to pass through.

When performing heat exchange, the hot fluid and the cold fluid can exchange heat through the tube walls of the hot flow channel and the cooling channel during the process of passing through the hot flow channel and the cooling channel respectively, and pass through The hot flow channel and cooling channel are designed in a roundabout way to increase the heat transfer area when the hot fluid and the cold fluid pass through, thereby achieving the effect of improving the heat exchange efficiency.

However, today's heat exchangers must be designed with complex circuitous channels to improve the efficiency of heat conduction. Not only is the structure complex, but also the cost of manufacturing and maintenance is high, so there is still a need for improvement.

Contents of the invention

The technical problem to be solved by the present invention is to provide a vortex heat exchange device, so as to improve the problems of complex structures and high manufacturing and maintenance costs of current heat exchangers.

The technical solution proposed by the present invention is to provide a vortex heat exchange device, which includes:

A composite tube assembly, which includes an outer tube and an inner tube arranged in the outer tube, a vortex channel extending axially along the inner tube is formed between the outer tube and the inner tube, the outer tube the tube forms a fluid outlet at one end of the vortex channel; and

A vortex guiding structure, which is arranged on the composite pipe assembly and is located at the other end of the vortex channel opposite to the fluid outlet, the vortex guiding structure has a fluid inlet connected to the vortex channel, and the fluid inlet A high-pressure fluid can be introduced, and the high-pressure fluid can form a vortex after passing through the vortex guide structure and enter the vortex channel, and the high-pressure fluid can exchange heat from the inner tube or the outer tube to the export export.

The vortex heat exchange device of the present invention can be connected to an external high-pressure fluid supply source at the fluid inlet, wherein the vortex heat exchange device has the following advantages:

1. Simplify the structure and reduce the cost: the vortex heat exchange device of the present invention is mainly through the flow path design of the composite tube assembly and the eddy current guiding structure, so that when the high-pressure fluid passes through the vortex guiding structure, the high-pressure fluid can The vortex around the periphery of the inner tube is generated and passes through the vortex channel, which can increase the flow path of the high-pressure fluid in the vortex channel, thereby eliminating the need to design complicated circuitous channels, effectively simplifying the structure, and reducing manufacturing and maintenance costs.

2. Improve heat exchange efficiency: As mentioned above, the vortex heat exchange device of the present invention mainly uses the vortex guide structure to make the high-pressure fluid flow through the vortex channel in a vortex flow, thereby effectively increasing the high-pressure fluid flow. The flow path inside the vortex channel can effectively increase the heat transfer area between the high-pressure fluid and the outer tube or inner tube, and can effectively improve the heat exchange efficiency.

Description of drawings

Fig. 1: is the three-dimensional schematic view of the first preferred embodiment of the vortex heat exchange device of the present invention.

FIG. 2 : is a perspective view from another angle of FIG. 1 .

Fig. 3: is a side view cross-sectional schematic view of the first preferred embodiment of the vortex heat exchange device of the present invention.

Fig. 4: is a schematic cross-sectional view of A-A in Fig. 3 .

FIG. 5 : is a schematic perspective view of the second preferred embodiment of the vortex heat exchange device of the present invention.

Fig. 6: It is a side sectional schematic view of the second preferred embodiment of the vortex heat exchange device of the present invention.

Fig. 7: is a schematic cross-sectional view of B-B in Fig. 6 .

Fig. 8: It is a three-dimensional schematic view of the third preferred embodiment of the vortex heat exchange device of the present invention.

FIG. 9 : is a schematic perspective view of another angle of FIG. 8 .

Fig. 10 is a three-dimensional schematic view of the eddy current guide structure, the inner tube and the eddy current guide structure of the third preferred embodiment of the eddy current heat exchange device of the present invention.

Fig. 11: is a schematic side sectional view of the third preferred embodiment of the vortex heat exchange device of the present invention.

Fig. 12: is a schematic cross-sectional view of C-C in Fig. 11 .

Fig. 13 is a perspective schematic diagram of a fourth preferred embodiment of the vortex heat exchange device of the present invention.

Fig. 14: It is a schematic side sectional view of the fourth preferred embodiment of the vortex heat exchange device of the present invention.

Fig. 15 is a schematic diagram of the D-D section in Fig. 14 .

Fig. 16 is a schematic diagram of the application of the eddy current heat exchange device of the present invention in a solar heat collector.

Figure 17: Schematic diagram of the heat collection method of the solar collector.

FIG. 18 : is a three-dimensional schematic view of various embodiments of the eddy current heat exchange device of the present invention.

Figure 19: is a schematic diagram of the internal structure of Figure 18.

FIG. 20 : is a schematic side sectional view of FIG. 18 .

Fig. 21: is a schematic cross-sectional view of E-E in Fig. 20 .

Explanation of reference signs:

10a, 10b: Composite pipe assembly 11: Outer pipe

12a, 12b: inner tube 121: fluid channel

122: import port 123: export port

13: Vortex channel 14: Fluid outlet

15:

Heat insulation layer

20a, 20b: Vortex guide structure

21a, 21b: Fluid inlet 22: Guide channel

30a, 30b:

vortex diversion structure

31a, 31b: diversion channel

311: Entry port 312: Exit port

40: deflector 41: spiral flow channel

50: Solar collector 51: Base

52: Sun-tracking drive mechanism 53: Photocollector cover

detailed description

In the following, the technical means adopted by the present invention to achieve the intended purpose of the invention will be further described in conjunction with the accompanying drawings and preferred embodiments of the present invention.

Please refer to FIG. 1 , FIG. 5 , FIG. 8 , and FIG. 13 , which are several preferred embodiments of the vortex heat exchange device of the present invention, which include a

composite tube assembly

10a, 10b and a

vortex guiding structure

20a, 20b.

As shown in Fig. 1, Fig. 2, Fig. 5, Fig. 8, Fig. 9, and Fig. 13, the

composite pipe assembly

10a, 10b comprises an outer pipe 11 and an

inner pipe

12a, 12b arranged in the outer pipe 11, so A vortex channel 13 extending axially along the

inner tubes

12a, 12b is formed between the outer tube 11 and the

inner tubes

12a, 12b, and a fluid outlet 14 is formed at one end of the vortex channel 13 by the outer tube 11; Wherein, as shown in Figure 3 and Figure 6, the opposite ends of the

inner tube

12a, 12b can be closed ends; or, as shown in Figure 11 and Figure 14, the outer side of the outer tube 11 can be coated with a partition In the thermal layer 15, a fluid channel 121 is formed inside the

inner tubes

12a, 12b, and the fluid channel 121 has an inlet 122 and an outlet 123, and the inlet 122 of the fluid channel 121 can introduce a working fluid, so The working fluid can exchange heat with the high-pressure fluid after passing through the fluid channel 121 , and is exported from the outlet 123 .

As shown in Fig. 1, Fig. 4, Fig. 7, Fig. 8, Fig. 10, and Fig. 15, the eddy

current guide structure

20a, 20b is arranged on the

composite pipe assembly

10a, 10b, and is located in the vortex channel 13 opposite to the The other end of the fluid outlet 14, the

vortex guide structure

20a, 20b has a

fluid inlet

21a, 21b connected to the vortex channel 13, the

fluid inlet

21a, 21b can introduce a high-pressure fluid, and the high-pressure fluid can pass through The

vortex guide structures

20a, 20b then form vortexes and enter the vortex channel 13, and the high-pressure fluid can conduct heat exchange on the

inner tubes

12a, 12b or the outer tube 11 and then be exported from the fluid outlet 14.

The eddy current guiding

structure

20a, 20b can have various embodiments, wherein, as shown in Fig. 1, Fig. 4, Fig. 8, and Fig. 10, the vortex guiding structure 20a can have a plurality of helical guiding structures Flow channel 22, the opposite ends of the plurality of guide channels 22 are respectively connected to the vortex channel 13 and the fluid inlet 21a, and the high-pressure fluid can generate vortex when passing through the plurality of guide channels 22; or, As shown in Fig. 7 and Fig. 15, the fluid inlet 21b of the vortex guide structure 20b extends along the tangential direction of the vortex channel 13, so that high-pressure fluid can enter the vortex channel 13 from the fluid inlet 21b in a tangential direction. , so that the high-pressure fluid flows along the tube wall of the outer tube 11 to form a vortex.

In addition, as shown in Fig. 2, Fig. 3, Fig. 6, Fig. 10, Fig. 11, and Fig. 14, the eddy current heat exchange device can further include at least one eddy current guiding

structure

30a, 30b according to requirements, and the

vortex guiding structure

30a, 30b are arranged in the vortex channels 13 of the

composite pipe assembly

10a, 10b, the

vortex guide structures

30a, 30b are spaced apart from the

vortex guide structures

20a, 20b, and the

vortex guide structures

30a, 30b It includes a plurality of

guide channels

31a, 31b arranged in a ring and spiral shape, and the opposite ends of the plurality of

guide channels

31a, 31b are formed with an inlet end 311 and an outlet end respectively communicating with the vortex channel 13 312, and the calibers of the plurality of

guide channels

31a, 31b are tapered from the inlet end 311 to the outlet end 312, and the high-pressure fluid can be formed when passing through the plurality of

guide channels

31a, 31b vortex.

Furthermore, as shown in Fig. 2 and Fig. 3, the vortex heat exchange device includes a deflector 40, the deflector 40 can be arranged in the vortex channel 13 of the composite tube assembly 10a, and the deflector The plate 40 is adjacent to the fluid outlet 14 of the outer tube 11, and a spiral flow channel 41 communicating with the vortex channel 13 is formed in the deflector plate 40, and the spiral flow channel 41 can guide the high-pressure fluid from the Fluid outlet 14 flows out.

As shown in Fig. 2, Fig. 3, Fig. 6, Fig. 10, Fig. 11, and Fig. 14, the

fluid inlets

21a, 21b of the eddy current guiding

structures

20a, 20b of the vortex heat exchange device of the present invention are connected to a high-pressure fluid supply source, and the vortex The heat exchange device is mainly designed through the channel design of the

composite tube assembly

10a, 10b and the

vortex guide structure

20a, 20b, so that when the high-pressure fluid passes through the

vortex guide structure

20a, 20b, the high-pressure fluid can generate a surrounding The vortex on the periphery of the

inner tubes

12a, 12b, and through the vortex channel 13, can increase the flow path of the high-pressure fluid in the vortex channel 13, thus not only does not need to design a complicated circuitous flow channel, but also can effectively simplify the structure and reduce the manufacturing cost. and maintenance costs, in addition, it can effectively increase the heat transfer area between the high-pressure fluid and the outer tube 11 or the inner tube 12b, and can effectively improve the heat exchange efficiency.

Wherein, the eddy current heat exchange device can be configured into various preferred embodiments according to the adjustment of the structure according to the usage requirements, and each embodiment will be described below.

As shown in Figures 1 to 4, in the first preferred embodiment of the vortex heat exchange device of the present invention, the opposite ends of the inner tube 12a of the composite tube assembly 10a are closed ends, and the vortex guiding structure 20a can have a plurality of helical guide channels 22, the high-pressure fluid can generate a vortex when passing through the plurality of guide channels 22, and when it passes through the vortex channel 13, it is connected to the outside of the outer tube 11 fluid for heat exchange.

As shown in Figures 5 to 7, in the second preferred embodiment of the vortex heat exchange device of the present invention, the opposite ends of the inner tube 12a of the composite tube assembly 10a are closed ends, and the vortex guide The fluid inlet 21b of the structure 20b extends along the tangential direction of the vortex channel 13, so that the high-pressure fluid can enter the vortex channel 13 from the fluid inlet 21b in the tangential direction, thereby making the high-pressure fluid flow along the outer tube 11 The tube wall flows to form a vortex, and exchanges heat with the fluid outside the outer tube 11 when passing through the vortex channel 13 .

Wherein, as shown in Fig. 2, Fig. 3 and Fig. 6, in the first preferred embodiment and the second preferred embodiment of the vortex heat exchange device of the present invention, the vortex heat exchange device can include at least one The vortex flow guiding structure 30a, and the outlet ends 312 of the plurality of flow guiding channels 31a of the vortex flow guiding structure 30a are close to the inner side wall of the outer tube 11, so that the high-pressure fluid can pass through the vortex When the flow guide structure 30a is used, it can flow along the plurality of flow guide channels 31a and flow close to the inner wall of the outer tube 11 , thereby improving the heat transfer efficiency of the high-pressure fluid to the outer tube 11 .

As shown in Figures 8 to 12, in the third preferred embodiment of the vortex heat exchange device of the present invention, the inner tube 12b of the composite tube assembly 10b forms the fluid channel 121 inside, and the outer tube 11 The outer side can be coated or coated with heat insulating material, the working fluid can exchange heat with the high-pressure fluid after passing through the fluid passage 121, and then lead out from the outlet 123, the eddy current guiding structure 20a There are multiple spiral guide channels 22, the high-pressure fluid can generate vortex when passing through the multiple guide channels 22, and when passing through the vortex channel 13, it can communicate with the fluid channel of the inner tube 12b The working fluid in 121 performs heat exchange.

As shown in Figures 13 to 15, in the fourth preferred embodiment of the vortex heat exchange device of the present invention, the fluid channel 121 is formed inside the inner tube 12b of the composite tube assembly 10b, and the working fluid can pass through After the fluid channel 121 performs heat exchange with the high-pressure fluid, and leads out from the outlet 123, the fluid inlet 21b of the vortex guiding structure 20b extends along the tangential direction of the vortex channel 13, so that the high-pressure Fluid can enter the vortex channel 13 from the fluid inlet 21b in a tangential direction, thereby causing the high-pressure fluid to flow along the wall of the outer tube 11 to form a vortex, and when passing through the vortex channel 13, it will communicate with the vortex channel 13. The working fluid in the fluid passage 121 of the inner tube 12b performs heat exchange.

Wherein, as shown in Fig. 8, Fig. 10 and Fig. 15, in the third preferred embodiment and the fourth preferred embodiment of the vortex heat exchange device of the present invention, the vortex heat exchange device can include at least one The vortex guide structure 30b, the outlet end 312 of the plurality of guide channels 31b of the vortex guide structure 30b is close to the outer wall of the inner tube 12b, so that the high-pressure fluid can pass through the vortex guide When the flow structure 30b is used, it can flow along the plurality of guide channels 31b and flow close to the outer wall of the inner tube 12b, thereby improving the heat transfer efficiency of the high-pressure fluid to the inner tube 12b.

The eddy current heat exchange device of the present invention has multiple application modes, as shown in Figure 16 and Figure 17, taking the first preferred embodiment of the eddy current heat exchange device of the present invention as an example, the eddy current heat exchange device can be applied in solar collectors Heater 50, wherein, the solar heat collector 50 includes a base 51, a sun tracking drive mechanism 52 and a light collecting cover 53, the sun tracking drive mechanism 52 is arranged on the base 51, and the The light collecting cover 53 is pivotally arranged on the base 51, and is connected and controlled by the sun tracking drive mechanism 52, and the eddy current heat exchange device is arranged on the base 51 of the solar heat collector 50, and is positioned At the pivotal axis between the light collecting cover 53 and the base 51, the solar tracking drive mechanism 52 can drive the light collecting cover 53 to pivot relative to the base 51, so that the light collecting cover 53 can Keep facing the sun as the sun moves, and irradiate the sunlight concentratedly on the outer tube 11 of the vortex heat exchange device.

Wherein, the solar heat collector 50 can heat the high-pressure fluid inside the vortex heat exchange device through the radiant heat of sunlight, so that the high-pressure fluid can exchange heat with the outer tube 11 when passing through the vortex passage 13, Furthermore, the high-pressure fluid flows out from the fluid outlet 14 in a state of high temperature and high pressure after heat exchange. Therefore, the vortex heat exchange device can be matched with the solar heat collector 50 and connected with a vortex generator to achieve power generation.

In addition, the eddy current heat exchange device can also be used in conjunction with each other through various preferred embodiments, as shown in Figure 18 to Figure 21, when the first preferred embodiment of the eddy current heat exchange device is matched with the third preferred embodiment In a preferred embodiment, the user can arrange multiple vortex heat exchange devices of the first preferred embodiment in parallel in the fluid channel 121 of the vortex heat exchange device of the third preferred embodiment, and pass The high-pressure fluid in the vortex heat exchange device of the first preferred embodiment and the high-pressure fluid in the vortex heat exchange device of the third preferred embodiment perform heat exchange on the working fluid in the fluid channel 121 , thereby improving the heat exchange efficiency.

In summary, the vortex heat exchange device is mainly designed through the

composite tube assembly

10a, 10b and the flow channel design of the

vortex guide structure

20a, 20b, so that the high-pressure fluid passes through the

vortex guide structure

20a, 20b can generate a vortex around the periphery of the

inner tubes

12a, 12b, thereby increasing the flow path of the high-pressure fluid in the vortex channel 13, not only does not need to design a complicated circuitous flow channel, but also can effectively simplify the structure and reduce manufacturing and maintenance costs , In addition, the heat transfer area between the high-pressure fluid and the outer tube 11 or the

inner tubes

12a, 12b can be effectively increased, and the heat exchange efficiency can be effectively improved.

The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art, Within the scope of not departing from the technical solution of the present invention, when the technical content disclosed above can be used to make some changes or be modified into equivalent embodiments with equivalent changes, but all the content that does not depart from the technical solution of the present invention, according to the technical content of the present invention In essence, any simple modifications, equivalent changes and modifications made to the above embodiments still fall within the scope of the technical solution of the present invention.

Claims

A vortex heat exchange device, characterized in that it comprises:

A composite tube assembly, which includes an outer tube and an inner tube arranged in the outer tube, a vortex channel extending axially along the inner tube is formed between the outer tube and the inner tube, the outer tube the tube forms a fluid outlet at one end of the vortex channel; and

A vortex guiding structure, which is arranged on the composite pipe assembly and is located at the other end of the vortex channel opposite to the fluid outlet, the vortex guiding structure has a fluid inlet connected to the vortex channel, and the fluid inlet A high-pressure fluid can be introduced, and the high-pressure fluid can form a vortex after passing through the vortex guide structure and enter the vortex channel, and the high-pressure fluid can exchange heat from the inner tube or the outer tube to the export export.
The vortex heat exchange device according to claim 1, wherein the vortex guiding structure has a plurality of spiral guide channels, and the opposite ends of the plurality of guide channels are respectively connected to the vortex channels As well as the fluid inlet, the high-pressure fluid can generate a vortex when passing through the plurality of guiding channels.
The vortex heat exchange device according to claim 1, wherein the fluid inlet of the vortex guiding structure extends along the tangential direction of the vortex channel.
The vortex heat exchange device according to any one of claims 1 to 3, characterized in that, the outside of the outer tube can be covered with a heat insulating layer, and a fluid channel is formed inside the inner tube, and the fluid channel has An inlet and an outlet. The inlet of the fluid channel can introduce a working fluid, and the working fluid can exchange heat with the high-pressure fluid after passing through the fluid channel, and then be exported from the outlet.
The vortex heat exchange device according to any one of claims 1 to 3, characterized in that, the vortex heat exchange device comprises at least one vortex flow guide structure, and the vortex flow guide structure is arranged on the composite tube assembly In the vortex channel, the vortex guide structure is spaced apart from the vortex guide structure, and the vortex guide structure includes a plurality of circularly arranged and spiral guide channels, and the plurality of guide channels An inlet port and an outlet port respectively connected to the vortex channel are formed at the opposite two ends, and the diameters of the plurality of diversion channels are tapered from the inlet port to the outlet port, and the high-pressure fluid can pass through A vortex is formed when the plurality of diversion channels are formed.
The vortex heat exchange device according to claim 4, characterized in that, the vortex heat exchange device comprises at least one vortex flow guide structure, and the vortex flow guide structure is arranged in the vortex channel of the composite tube assembly, said The eddy current guide structure is arranged at intervals with the vortex guide structure, and the vortex guide structure includes a plurality of circularly arranged and spiral guide channels, and the opposite ends of the plurality of guide channels are respectively formed with An inlet end and an outlet end of the vortex channel are connected, and the calibers of the plurality of guide flow channels are tapered from the inlet end to the outlet end, and the high-pressure fluid can pass through the plurality of guide flow channels. A vortex is formed during the passage.
The vortex heat exchange device according to claim 5, characterized in that, the outlet ends of the plurality of guide channels of the vortex guide structure are close to the inner wall of the outer tube.
The vortex heat exchange device according to claim 6, characterized in that, the outlet ends of the plurality of guide channels of the vortex guide structure are close to the outer wall of the inner tube.
The vortex heat exchange device according to claim 7, characterized in that, the vortex heat exchange device comprises a deflector, and the deflector is arranged in the vortex channel of the composite tube assembly, and the deflector The plate is adjacent to the fluid outlet of the outer tube, and a spiral flow channel communicating with the vortex channel is formed in the guide plate, and the spiral flow channel can guide the high-pressure fluid to flow out from the fluid outlet.
The vortex heat exchange device according to claim 8, characterized in that, the vortex heat exchange device comprises a deflector, and the deflector is arranged in the vortex channel of the composite tube assembly, and the deflector The plate is adjacent to the fluid outlet of the outer tube, and a spiral flow channel communicating with the vortex channel is formed in the guide plate, and the spiral flow channel can guide the high-pressure fluid to flow out from the fluid outlet.