CN115615217A

CN115615217A - Vortex heat exchanger

Info

Publication number: CN115615217A
Application number: CN202110787604.5A
Authority: CN
Inventors: 张宏森; 张宇婕
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-07-13
Filing date: 2021-07-13
Publication date: 2023-01-17
Also published as: AU2022309902A1; WO2023284388A1

Abstract

The invention relates to a vortex heat exchange device, which comprises a composite pipe assembly and a vortex guide structure arranged on the composite pipe assembly, wherein the composite pipe assembly comprises an outer pipe and an inner pipe arranged in the outer pipe, a vortex 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 at one end of the vortex channel by the outer pipe, the vortex guide structure is positioned at the other end of the vortex channel opposite to the fluid outlet and is provided with a fluid inlet communicated with the vortex channel, high-pressure fluid can be introduced from the fluid inlet, and the high-pressure fluid can generate a vortex surrounding the periphery of the inner pipe when passing through the vortex guide structure, so that the flow path of the high-pressure fluid in the vortex channel can be increased, the structure can be effectively simplified, the manufacturing and maintenance costs can be reduced, in addition, the heat transfer area between the high-pressure fluid and the outer pipe or the inner pipe can be effectively increased, and the heat exchange efficiency can be effectively improved.

Description

Vortex heat exchanger

Technical Field

The present invention relates to a vortex heat exchange device, and more particularly, to a vortex heat exchange device for exchanging heat between fluids by using a vortex flow.

Background

The heat exchanger is mainly a device for transferring heat through the flow of fluid, thereby achieving the effects of cooling and warming, and the current heat exchanger is mainly provided with a heat flow channel and a cooling channel in a winding way in a shell, wherein the heat flow channel and the cooling channel are mutually staggered and are not communicated, the heat flow channel of the heat exchanger can be used for a hot fluid to pass through, and the cooling channel can be used for a cold fluid to pass through.

When heat exchange is carried out, the hot fluid and the cold fluid can respectively carry out heat exchange through the pipe walls of the hot flow channel and the cooling channel in the process of passing through the hot flow channel and the cooling channel, and the heat transfer area when the hot fluid and the cold fluid pass through is increased by means of the heat flow channel and the cooling channel which are designed in a circuitous manner, so that the effect of improving the heat exchange efficiency is achieved.

However, the heat exchanger of the present invention must have a complicated circuitous flow path to improve the heat transfer efficiency, which is not only complicated in structure but also costly in manufacturing and maintenance, and thus needs to be improved.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: a vortex heat exchange device is provided, thereby solving the problems of complex structure and high manufacturing and maintenance cost of the prior heat exchanger.

The technical scheme provided by the invention is as follows: there is provided a vortex heat exchange device comprising:

a composite pipe assembly comprising an outer pipe and an inner pipe disposed within the outer pipe, a vortex channel extending axially along the inner pipe being formed between the outer pipe and the inner pipe, the outer pipe forming a fluid outlet at one end of the vortex channel; and

and the vortex guide structure is arranged on the composite pipe assembly and is positioned at the other end of the vortex channel opposite to the fluid outlet, the vortex guide structure is provided with a fluid inlet communicated with the vortex channel, the fluid inlet can introduce a high-pressure fluid, 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 with the inner pipe or the outer pipe and then is led out from the fluid outlet.

The vortex heat exchange device of the present invention can be connected with 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 invention mainly utilizes the flow channel design of the composite pipe assembly and the vortex guide structure to ensure that when the high-pressure fluid passes through the vortex guide structure, the high-pressure fluid can generate a vortex around the periphery of the inner pipe, and the flow path of the high-pressure fluid in the vortex channel can be increased through the vortex channel, so that a complex circuitous flow channel is not required to be designed, the structure can be effectively simplified, and the manufacturing and maintenance cost can be reduced.

2. The heat exchange efficiency is improved: as described above, the vortex heat exchange device of the present invention mainly passes the high-pressure fluid through the vortex channel in a vortex flow manner through the vortex guide structure, so that the flow path of the high-pressure fluid inside the vortex channel can be effectively increased, the heat transfer area between the high-pressure fluid and the outer tube or the inner tube can be effectively increased, and the heat exchange efficiency can be effectively improved.

Drawings

FIG. 1: a perspective view of a first preferred embodiment of the vortex heat exchange device of the present invention is shown.

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

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

FIG. 4: isbase:Sub>A schematic cross-sectional view taken along linebase:Sub>A-base:Sub>A of fig. 3.

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

FIG. 6: a schematic cross-sectional side view of a second preferred embodiment of the vortex heat exchange device of the present invention.

FIG. 7 is a schematic view of: is a schematic cross-sectional view B-B of fig. 6.

FIG. 8: is a perspective view of a 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: a third preferred embodiment of the vortex flow heat exchange device of the present invention is a schematic perspective view of the vortex flow guiding structure, the inner tube and the vortex flow guiding structure.

FIG. 11: a schematic cross-sectional side view of a vortex heat exchange device according to a third preferred embodiment of the present invention.

FIG. 12: is a schematic cross-sectional view of fig. 11C-C.

FIG. 13 is a schematic view of: is a perspective view of a fourth preferred embodiment of the vortex heat exchange device of the present invention.

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

FIG. 15: is a schematic cross-sectional view taken along line D-D of fig. 14.

FIG. 16: the schematic diagram of the vortex heat exchange device applied to the solar heat collector is shown.

FIG. 17: is a schematic diagram of a heat collection mode of a solar heat collector.

FIG. 18: is a schematic perspective view of various embodiments of the vortex heat exchange device of the present invention.

FIG. 19 is a schematic view of: is a schematic view of the internal structure of fig. 18.

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

FIG. 21: is a schematic cross-sectional view E-E of fig. 20.

The reference numerals are briefly described:

10 0a,10b composite tube assembly 11 outer tube

12a,12b inner tube 121 fluid passage

122, an inlet port 123, an outlet 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

flow guide structure

31a,31b flow guide channel

311 inlet end 312 outlet end

40 guide plate 41 spiral flow channel

50 solar heat collector 51 base

52 sun tracking driving mechanism 53 light collecting cover

Detailed Description

The technical means adopted by the invention to achieve the predetermined object of the invention are further described below with reference to the drawings and the preferred embodiments of the invention.

Referring to fig. 1, 5, 8 and 13, several preferred embodiments of the vortex heat exchange device of the present invention include a

composite tube assembly

10a,10b and a

vortex guide structure

20a,20b.

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

composite pipe assembly

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

inner pipe

12a,12b provided in the outer pipe 11, a vortex passage 13 extending axially along the

inner pipe

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

inner pipe

12a,12b, and the outer pipe 11 forms a fluid outlet 14 at one end of the vortex passage 13; as shown in fig. 3 and 6, the opposite ends of the

inner pipes

12a and 12b may be closed ends; alternatively, as shown in fig. 11 and 14, the outer tube 11 may be covered with a heat insulating layer 15, a fluid channel 121 is formed inside the

inner tubes

12a and 12b, the fluid channel 121 has an inlet 122 and an outlet 123, the inlet 122 of the fluid channel 121 can introduce a working fluid, and the working fluid can pass through the fluid channel 121, exchange heat with the high-pressure fluid, and be led out from the outlet 123.

As shown in fig. 1, 4, 7, 8, 10, and 15, the vortex

flow guide structures

20a,20b are provided at the

composite pipe assemblies

10a,10b and are located at the other ends of the vortex flow channels 13 opposite to the fluid outlets 14, the vortex

flow guide structures

20a,20b have

fluid inlets

21a,21b communicating with the vortex flow channels 13, the

fluid inlets

21a,21b can introduce a high-pressure fluid, the high-pressure fluid can form a vortex flow after passing through the vortex flow guide structures 20a, 210b and enter the vortex flow channels 13, and the high-pressure fluid can exchange heat with the inner pipes 12a, 212b or the outer pipe 11 and then be led out from the fluid outlets 14.

The vortex

flow guiding structures

20a,20b may have various embodiments, wherein, as shown in fig. 1, 4, 8, and 10, the vortex flow guiding structure 20a may have a plurality of spiral guiding channels 22, opposite ends of the plurality of guiding channels 22 are respectively communicated with the vortex flow channel 13 and the fluid inlet 21a, and the high-pressure fluid may generate a vortex flow through the plurality of guiding channels 22; alternatively, as shown in fig. 4 and 15, the fluid inlet 21b of the vortex guiding structure 20b extends along a 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 causing the high-pressure fluid to flow along the wall of the outer tube 11 to form a vortex.

In addition, as shown in fig. 2, 3, 6, 10, 11, 14, the vortex heat exchange device includes at least one vortex

flow guiding structure

30a,30b, the vortex

flow guiding structure

30a,30b is disposed in the vortex channel 13 of the

composite tube assembly

10a,10b, the vortex

flow guiding structure

30a,30b is disposed at a distance from the vortex

flow guiding structure

20a,20b, the vortex

flow guiding structure

30a,30b includes a plurality of annularly arranged and spiral

flow guiding channels

31a,31b, opposite ends of the plurality of

flow guiding channels

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

flow guiding channels

31a,31b are tapered from the inlet end 311 to the outlet end 312, so that the high pressure fluid can form a vortex flow when passing through the plurality of

flow guiding channels

31a, 31b.

Furthermore, as shown in fig. 2 and 3, the vortex heat exchanging device includes a baffle 40, the baffle 40 can be disposed in the vortex channel 13 of the composite pipe assembly 10a, and the baffle 40 is adjacent to the fluid outlet 14 of the outer pipe 11, a spiral flow channel 41 communicating with the vortex channel 13 is formed in the baffle 40, and the spiral flow channel 41 can guide the high-pressure fluid to flow out from the fluid outlet 14.

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

fluid inlets

21a,21b of the vortex

flow guiding structures

20a,20b of the vortex flow heat exchanging device of the present invention are connected to a high pressure fluid supply source, and the vortex flow heat exchanging device mainly uses the channel design of the

composite tube assemblies

10a,10b and the vortex

flow guiding structures

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

flow guiding structures

20a,20b, the high pressure fluid can generate vortex flows around the peripheries of the

inner tubes

12a,12b, and the flow path of the high pressure fluid in the vortex flow channel 13 can be increased through the vortex flow channel 13, thereby not only needing to design a complicated circuitous flow channel, effectively simplifying the structure, reducing the manufacturing and maintenance costs, but also effectively increasing the heat transfer area between the high pressure fluid and the outer tube 11 or the inner tube 12b, and effectively improving the heat exchange efficiency.

The vortex heat exchange device can be set into various preferred embodiments according to the adjustment structure of the use requirement, and the embodiments are described below.

As shown in fig. 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 guide structure 20a can have a plurality of spiral guide flow channels 22, and the high-pressure fluid can generate a vortex flow through the plurality of guide flow channels 22 and exchange heat with the fluid outside the outer tube 11 while passing through the vortex flow channels 13.

As shown in fig. 5 to 7, in another 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 fluid inlet 21b of the vortex guide structure 20b extends along a 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 flowing along the wall of the outer tube 11 to form a vortex, and exchanging heat with the fluid outside the outer tube 11 while passing through the vortex channel 13.

As shown in fig. 2, 3 and 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 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 sidewall of the outer tube 11, so that high-pressure fluid can flow along the plurality of flow guiding channels 31a and close to the inner sidewall of the outer tube 11 when passing through the vortex flow guiding structure 30a, thereby improving the heat transfer efficiency of the high-pressure fluid to the outer tube 11.

As shown in fig. 8 to 12, in the third preferred embodiment of the vortex heat exchanging device of the present invention, the fluid channel 121 is formed inside the inner tube 12b of the composite tube assembly 10b, and the outer side of the outer tube 11 can be coated or coated with a heat insulating material, the working fluid can exchange heat with the high-pressure fluid after passing through the fluid channel 121 and is discharged from the discharge port 123, and the vortex flow guiding structure 20a has a plurality of spiral guiding flow channels 22, and the high-pressure fluid can generate a vortex flow when passing through the plurality of guiding flow channels 22 and exchange heat with the working fluid in the fluid channel 121 of the inner tube 12b when passing through the vortex flow channel 13.

As shown in fig. 13 to 15, in the fourth preferred embodiment of the vortex heat exchanging apparatus of the present invention, the fluid channel 121 is formed inside the inner tube 12b of the composite tube assembly 10b, the working fluid can exchange heat with the high pressure fluid after passing through the fluid channel 121 and is led out from the outlet 123, the fluid inlet 21b of the vortex guiding structure 20b extends along a 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 causing the high pressure fluid to flow along the wall of the outer tube 11 to form a vortex and exchange heat with the working fluid in the fluid channel 121 of the inner tube 12b when passing through the vortex channel 13.

As shown in fig. 8, 10 and 15, in the third and fourth preferred embodiments of the vortex heat exchange device of the present invention, the vortex heat exchange device can include at least one vortex flow guiding structure 30b, and the outlet ends 312 of the plurality of flow guiding channels 31b of the vortex flow guiding structure 30b are close to the outer sidewall of the inner tube 12b, so that high-pressure fluid can flow along the plurality of flow guiding channels 31b and close to the outer sidewall of the inner tube 12b when passing through the vortex flow guiding structure 30b, thereby improving the heat transfer efficiency of the high-pressure fluid to the inner tube 12 b.

The vortex heat exchange device of the present invention has various application manners, as shown in fig. 16 and 17, taking a first preferred embodiment of the vortex heat exchange device of the present invention as an example, the vortex heat exchange device can be applied to a solar heat collector 50, wherein the solar heat collector 50 includes a base 51, a sun-tracking driving mechanism 52 and a light-collecting cover 53, the sun-tracking driving mechanism 52 is disposed on the base 51, the light-collecting cover 53 is pivotally disposed on the base 51 and is connected and controlled by the sun-tracking driving mechanism 52, the vortex heat exchange device is disposed on the base 51 of the solar heat collector 50 and is located at a pivotal axis of the light-collecting cover 53 and the base 51, the sun-tracking driving 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 with the movement of the sun, and the sun light can be intensively irradiated on the outer tube 11 of the vortex heat exchange device.

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

In addition, the vortex heat exchange device can be applied by matching various preferred embodiments, as shown in fig. 18 to fig. 21, when the first preferred embodiment of the vortex heat exchange device matches the third preferred embodiment, a user can arrange a plurality of vortex heat exchange devices of the first preferred embodiment in parallel inside the fluid channel 121 of the vortex heat exchange device of the third preferred embodiment, and exchange heat with the working fluid inside the fluid channel 121 by using the high-pressure fluid inside the vortex heat exchange devices of the first preferred embodiment and the high-pressure fluid of the vortex heat exchange devices of the third preferred embodiment, thereby improving the heat exchange efficiency.

In summary, the vortex heat exchange device mainly utilizes the flow channel design of the

composite pipe assemblies

10a and 10b and the

vortex guide structures

20a and 20b to enable the high-pressure fluid to generate the vortex surrounding the peripheries of the

inner pipes

12a and 12b when passing through the

vortex guide structures

20a and 20b, so that the flow path of the high-pressure fluid in the vortex channel 13 can be increased, a complicated circuitous flow channel does not need to be designed, the structure can be effectively simplified, the manufacturing and maintenance cost can be reduced, in addition, the heat transfer area between the high-pressure fluid and the outer pipe 11 or the

inner pipes

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

Although the present invention has been described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the present invention.

Claims

1. A vortex heat exchange device, comprising:

2. The vortex heat exchange device of claim 1, wherein the vortex flow guiding structure has a plurality of spiral guiding channels, opposite ends of the plurality of guiding channels are respectively connected to the vortex channel and the fluid inlet, and the high pressure fluid can generate vortex flow through the plurality of guiding channels.

3. Vortex heat exchange device according to claim 1, wherein the fluid inlet of the vortex guiding structure extends tangentially to the vortex channel.

4. The vortex heat exchange device according to any one of claims 1 to 3, wherein the outer tube is covered by a heat insulation layer, a fluid channel is formed inside the inner tube, 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 pass through the fluid channel, exchange heat with the high-pressure fluid, and be led out from the outlet.

5. The vortex heat exchange device according to any one of claims 1 to 3, wherein the vortex heat exchange device comprises at least one vortex flow guiding structure, the vortex flow guiding structure is disposed in the vortex channel of the composite pipe assembly, the vortex flow guiding structure is spaced from the vortex flow guiding structure, the vortex flow guiding structure comprises a plurality of annularly arranged and spirally shaped flow guiding channels, opposite ends of the plurality of flow guiding channels are formed with an inlet end and an outlet end respectively communicating with the vortex channel, and the apertures of the plurality of flow guiding channels are tapered from the inlet end to the outlet end, so that the high-pressure fluid can form a vortex flow when passing through the plurality of flow guiding channels.

6. The vortex heat exchange device of claim 4, wherein the vortex heat exchange device comprises at least one vortex flow guiding structure, the vortex flow guiding structure is disposed in the vortex channel of the composite pipe assembly, the vortex flow guiding structure is spaced apart from the vortex flow guiding structure, the vortex flow guiding structure comprises a plurality of annularly arranged and spiral flow guiding channels, opposite ends of the plurality of flow guiding channels are formed with an inlet end and an outlet end respectively communicating with the vortex channel, and the apertures of the plurality of flow guiding channels are gradually reduced in size from the inlet end to the outlet end, so that the high-pressure fluid can form a vortex flow when passing through the plurality of flow guiding channels.

7. The vortex heat exchange device of claim 5, wherein the outlet ends of the plurality of baffle flow channels of the vortex flow directing structure are proximate to the inner sidewall of the outer tube.

8. The vortex heat exchange device of claim 6, wherein the outlet ends of the plurality of flow channels of the vortex flow guiding structure are proximate to the outer sidewall of the inner tube.

9. The vortex heat exchanging apparatus according to claim 7, wherein the vortex heat exchanging apparatus comprises a baffle plate, the baffle plate is disposed in the vortex channel of the composite tube assembly, and the baffle plate is adjacent to the fluid outlet of the outer tube, the baffle plate has a spiral flow channel formed therein and connected to the vortex channel, the spiral flow channel is capable of guiding the high pressure fluid to flow out of the fluid outlet.

10. The vortex heat exchange device of claim 8, wherein the vortex heat exchange device comprises a baffle plate, the baffle plate is disposed in the vortex channel of the composite tube assembly, and the baffle plate is adjacent to the fluid outlet of the outer tube, and a spiral flow channel is formed in the baffle plate and communicates with the vortex channel, and the spiral flow channel can guide the high-pressure fluid to flow out of the fluid outlet.