TW202303066A - Vortex heat exchange device which can effectively increase the heat transfer area between the high-pressure fluid and the outer tube or inner tube - Google Patents

Abstract

The present invention relates to a vortex heat exchange device, which includes a composite tube assembly and a vortex guiding structure disposed on the composite tube assembly. The composite tube assembly includes an outer tube and an inner tube disposed 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 forms a fluid outlet and a closed end at the two ends of the vortex channel respectively. The inner tube has a fluid inlet formed at the same end as the fluid outlet. The fluid channel and the vortex channel are communicated with each other at the closed end. The vortex guiding structure is located at the closed end of the vortex channel adjacent to the outer tube. The high-pressure fluid can be introduced from the fluid inlet. When the high-pressure fluid passes through the vortex guiding structure, it can generate a vortex around the periphery of the inner tube, thereby increasing the flow path of the high-pressure fluid in the vortex channel, which not only effectively simplifies the structure and reduces the manufacturing and maintenance costs, but also effectively increases the heat transfer area between the high-pressure fluid and the outer tube or inner tube and effectively improve the heat exchange efficiency.

Description

Vortex Heat Exchanger

The invention relates to a vortex heat exchange device, especially a vortex heat exchange device that utilizes eddy currents for fluid heat exchange.

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 mainly use a heat flow channel and a cooling channel in a casing. The hot flow channel and the cooling channel are interlaced and not connected with each other, the hot flow channel of the heat exchanger can pass a hot fluid, and the cooling channel can pass a cold fluid.

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 by The heat flow channel and cooling channel are designed in a circuitous manner to increase the heat transfer area when the hot fluid and cold fluid pass through, thereby achieving the effect of improving heat exchange efficiency.

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

The main purpose of this creation is to provide a vortex heat exchange device, hoping to improve the problems of complex structures and high manufacturing and maintenance costs of current heat exchangers.

In order to achieve the purpose of the previous disclosure, the eddy current heat exchange device of this creation 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, and the The outer tube forms a fluid outlet and a closed end at opposite ends of the vortex channel, a fluid channel is formed in the inner tube, and the fluid channel communicates with the vortex channel adjacent to the closed end of the outer tube, and the inner tube forms a fluid inlet in the fluid channel adjacent to the fluid outlet; and At least one vortex guiding structure is arranged on the composite tube assembly and is located at the closed end of the vortex channel, the fluid inlet of the inner tube can introduce a high-pressure fluid into the fluid channel, and the high-pressure fluid It can flow back into the vortex channel after flowing to the closed end of the vortex channel, and form a vortex after passing through the vortex guiding structure, and the high-pressure fluid can exchange heat from the outer tube export export.

The vortex heat exchange device of the 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 this invention is mainly based on the flow channel design of the composite tube assembly and the vortex guide structure, so that the high-pressure fluid can pass through the contact after entering the fluid channel. The closed end of the vortex channel flows back through the vortex guide structure, so that the high-pressure fluid can generate a vortex around the periphery of the inner tube and pass through the vortex channel, thereby not only increasing the pressure of the high-pressure fluid in the vortex channel The flow path does not need to design complicated circuitous channels, which can effectively simplify the structure and reduce manufacturing and maintenance costs. 2. Improve heat exchange efficiency: As mentioned above, the vortex heat exchange device of this 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. The flow path of the fluid inside the vortex channel can effectively increase the heat transfer area between the high-pressure fluid and the outer tube, and effectively improve the heat exchange efficiency.

Please refer to FIG. 1 to FIG. 4 , which are several preferred embodiments of the vortex heat exchange device of the present invention, which include a composite tube assembly 10 and at least one vortex guiding structure 20 .

As shown in FIGS. 1 to 3 , the composite pipe assembly 10 includes an outer pipe 11 and an inner pipe 12 disposed inside the outer pipe 11 . The inner tube 12 has a vortex channel 111 extending axially, and the outer tube 11 forms a fluid outlet 112 and a closed end 113 at opposite ends of the vortex channel 111, and a fluid outlet 113 is formed in the inner tube 12. A channel 121, the fluid channel 121 communicates with the vortex channel 111 adjacent to the closed end 113 of the outer tube 11, and the inner tube 12 forms a fluid inlet 122 adjacent to the fluid outlet 112 at the fluid channel 121; wherein , the periphery of the inner tube 12 can be further coated or coated with a heat insulating layer (not shown).

As shown in Figures 1 to 4, the vortex guide structure 20 is arranged on the composite tube assembly 10, and is located at the closed end 113 of the vortex channel 111, and the fluid inlet 122 of the inner tube 12 can introduce a high pressure Fluid enters the fluid channel 121, and the high-pressure fluid can flow back into the vortex channel 111 after flowing to the closed end 113 of the vortex channel 111, and form a vortex after passing through the vortex guiding structure 20, so The high-pressure fluid can be exported from the fluid outlet 112 after exchanging heat with the outer tube 11 .

Wherein, as shown in Fig. 1 to Fig. 4, the vortex guide structure 20 has a plurality of helical guide flow channels 21, and the plurality of guide flow channels 21 are connected to the vortex channel 111, and the high-pressure fluid can pass through The plurality of guiding channels 21 generate vortices; in addition, the opposite ends of the plurality of guiding channels 21 of the vortex guiding structure 20 are formed with an inlet port 22 and an outlet port 23 respectively communicating with the vortex channel 111, and The calibers of the plurality of guiding flow channels 21 are tapered from the inlet end 22 to the outlet end 23; moreover, the outlet ends 23 of the plurality of guiding flow channels 21 of the vortex guiding structure 20 are close to all The inner side wall of the outer tube 11 is described.

As shown in Figures 1 to 4, in a preferred embodiment of the vortex heat exchange device of the present invention, the vortex heat exchange device can further include a plurality of the eddy current guide structures 20, and the plurality of the guide structures are The vortex passages 111 of the outer tube 11 are arranged at intervals, and the high-pressure fluid can maintain the vortex state and flow velocity by passing through the plurality of vortex guiding structures 20 .

In addition, as shown in Figure 3, the vortex heat exchange device can further include a deflector 30, the deflector 30 is arranged in the vortex channel 111 of the composite tube assembly 10, and the deflector 30 It is adjacent to the fluid outlet 112 of the outer tube 11, and a spiral channel 31 communicating with the vortex channel 111 is formed in the deflector 30, and the spiral channel 31 can guide the high-pressure fluid from the fluid outlet 112 outflow.

As shown in Figure 3, the fluid inlet 122 of the inner tube 12 of the vortex heat exchange device of the present invention can be connected to a high-pressure fluid supply source. When the high-pressure fluid flows into the vortex heat exchange device and performs heat exchange, the high-pressure Fluid can enter from the fluid channel 121, and when the high-pressure fluid flows to the closed end 113 of the vortex channel 111, backflow is generated due to contact with the closed end 113 of the vortex channel 111, and is guided by the vortex The structure 20 enables the high-pressure fluid to generate a vortex around the periphery of the inner tube 12 and pass through the vortex channel 111, thereby increasing the flow path of the high-pressure fluid in the vortex channel 111, so that the high-pressure fluid is in the vortex channel 111 and The outer tube 11 performs heat exchange. Therefore, the vortex heat exchange device of the present invention can be designed through the flow channel design of the composite tube assembly 10 and the vortex guide structure 20. Not only does it not need to design complicated circuitous flow channels, but the structure can be effectively simplified , reduce manufacturing and maintenance costs, and in addition, can effectively increase the heat transfer area between the high-pressure fluid and the outer tube 11, and can effectively improve heat exchange efficiency.

In addition, as shown in FIG. 3 , since the calibers of the plurality of guide channels 21 are tapered from the inlet end 22 to the outlet end 23, when the high-pressure fluid passes through the vortex guide structure 20, The flow velocity when the high-pressure fluid passes through can be increased; moreover, the outlet ends 23 of the plurality of guiding channels 21 of the vortex guiding structure 20 are close to the inner sidewall of the outer tube 11, so that the high-pressure fluid can pass through The eddy current guiding structure 20 can flow along the plurality of guiding channels 21 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 .

The inventive vortex heat exchange device can utilize the high-pressure fluid to perform heat exchange with the fluid outside the outer tube 11, and can be applied in various fields; for example, as shown in Figures 5 to 8, the inventive vortex heat exchanger The exchanging device can be applied in the heat exchange compartment 41 of a heat exchange device 40, the heat exchange compartment 41 of the heat exchange device 40 has a heat exchange channel 42, and the heat exchange channel 42 of the heat exchange compartment 41 A plurality of vortex heat exchange devices arranged in parallel with each other can be provided inside, wherein, as shown in Figure 7, Figure 11, and Figure 12, the fluid inlets 122 of the plurality of vortex heat exchange devices can be communicated through the plurality of inlets The tubes 50 communicate with each other and connect to a high-pressure fluid input tube 51 , while the fluid outlets 112 of the plurality of vortex heat exchange devices can communicate with each other through an outlet communication tube 52 and connect to a high-pressure fluid output tube 53 .

As shown in Figures 8 to 12, the heat exchange channel 42 of the heat exchange chamber 41 can allow a working fluid to pass through, and the high-pressure fluid input pipe 51 can be connected to a high-pressure fluid supply source during heat exchange. The high-pressure fluid can pass through the inlet connecting pipe 50 from the high-pressure fluid input pipe 51, and split into the fluid channel 121 of the plurality of vortex heat exchange devices, thereby allowing the high-pressure fluid to pass through the plurality of vortex heat exchange devices respectively. The vortex guide structure 20 generates vortex in the vortex channel 111, and conducts heat exchange with the working fluid in the heat exchange channel 42 through the outer tube 11, and finally the high-pressure fluid can enter the outlet from the fluid outlet 112 After communicating with the pipe 52 , it flows out from the high-pressure fluid output pipe 53 .

To sum up, the vortex heat exchange device is mainly designed through the flow channel design of the composite tube assembly 10 and the vortex guide structure 20, so that the high-pressure fluid can enter through the fluid channel 121 by contacting The closed end 113 of the vortex channel 111 flows back through the vortex guide structure 20, so that the high-pressure fluid can generate a vortex around the periphery of the inner tube 12 and pass through the vortex channel 111, thereby not only increasing the pressure of the high-pressure fluid The flow path in the vortex channel 111 does not need to design a complicated circuitous flow channel, which can effectively simplify the structure, reduce manufacturing and maintenance costs, and at the same time effectively increase the heat transfer area between the high-pressure fluid and the outer tube 11. Effectively improve heat exchange efficiency.

10: Composite pipe assembly 11: Outer tube 111: Vortex channel 112: fluid outlet 113: closed end 12: inner tube 121: Fluid channel 122: Fluid inlet 20: Vortex guiding structure 21: guide runner 22: Entry port 23: Export port 30: deflector 31: Spiral channel 40:Heat exchange equipment 41: heat exchange cabin 42: heat exchange channel 50: Inlet connecting pipe 51: High-pressure fluid input pipe 52: Outlet connecting pipe 53: High-pressure fluid output pipe

Fig. 1: is the three-dimensional schematic view of a preferred embodiment of the eddy current heat exchange device of the present invention. Fig. 2: It is a three-dimensional schematic view from another angle of Fig. 1 . Fig. 3: It is a schematic side view sectional view of a preferred embodiment of the eddy current heat exchange device of the present invention. Fig. 4: is a schematic cross-sectional view of A-A in Fig. 3 . Figure 5: A schematic diagram of the three-dimensional appearance of the vortex heat exchange device of the present invention applied to heat exchange equipment. Fig. 6: It is a three-dimensional appearance schematic diagram of another angle of Fig. 5 . Fig. 7 is a schematic diagram of the parallel connection mode of the eddy current heat exchange device in Fig. 5 . Fig. 8: is a side view cross-sectional schematic diagram of Fig. 5 . Fig. 9 is a partially enlarged schematic diagram of the water outlet of the heat exchange device in Fig. 8 . Fig. 10: is a partially enlarged schematic diagram of the water inlet end of the heat exchange device in Fig. 8 . Fig. 11 is a schematic cross-sectional view of B-B in Fig. 8 . Fig. 12: is a schematic cross-sectional view of C-C in Fig. 8 .

10: Composite pipe assembly

11: Outer tube

111: Vortex channel

112: fluid outlet

113: closed end

12: inner tube

121: Fluid channel

122: Fluid inlet

20: Vortex guiding structure

21: guide runner

22: Entry port

23: Export port

30: deflector

31: Spiral channel

Claims (7)

A vortex heat exchange device comprising: 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, and the The outer tube forms a fluid outlet and a closed end at opposite ends of the vortex channel, a fluid channel is formed in the inner tube, and the fluid channel communicates with the vortex channel adjacent to the closed end of the outer tube, and the inner tube forms a fluid inlet in the fluid channel adjacent to the fluid outlet; and At least one vortex guiding structure is arranged on the composite tube assembly and is located at the closed end of the vortex channel, the fluid inlet of the inner tube can introduce a high-pressure fluid into the fluid channel, and the high-pressure fluid It can flow back into the vortex channel after flowing to the closed end of the vortex channel, and form a vortex after passing through the vortex guiding structure, and the high-pressure fluid can exchange heat from the outer tube export export. The vortex heat exchange device according to claim 1, wherein the vortex guide structure has a plurality of spiral guide channels, and the plurality of guide channels are connected to the vortex channel, and the high-pressure fluid can pass through the plurality of guide channels. The guide runner generates eddy currents. The vortex heat exchange device as described in Claim 2, wherein the opposite ends of the plurality of guiding flow channels of the vortex guiding structure are formed to communicate with an inlet end and an outlet end of the vortex channel respectively, and the plurality of guiding channels The caliber of the flow channel is tapered from the inlet end to the outlet end. The vortex heat exchange device according to claim 3, wherein the outlet ends of the plurality of guiding channels of the vortex guiding structure are close to the inner wall of the outer tube. The vortex heat exchange device according to any one of claims 1 to 4, wherein the vortex heat exchange device comprises a plurality of the eddy current guide structures, and the plurality of the guide structures are arranged on the outer tube at intervals in the vortex channel. The vortex heat exchange device according to any one of claims 1 to 4, wherein the vortex heat exchange device comprises a deflector, and the deflector is arranged in the vortex channel of the composite tube assembly, and the The deflector is adjacent to the fluid outlet of the outer tube, and a spiral flow channel is formed in the deflector to communicate with the vortex channel, 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 5, wherein the vortex heat exchange device comprises a deflector, the deflector is arranged in the vortex channel of the composite tube assembly, and the deflector is adjacent to For the fluid outlet of the outer tube, a helical flow channel communicating with the vortex channel is formed in the deflector, and the helical flow channel can guide the high-pressure fluid to flow out from the fluid outlet.

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