Tubular heat exchanger

Abstract

The utility model discloses a tubular heat exchanger which comprises a regular polygonal rear support frame, a regular polygonal front support frame, a central support frame arranged between the rear support frame and the front support frame, and a plurality of snakelike heat exchange assemblies arranged on the outer side edges of the rear support frame and the front support frame in an annular array mode. The first transition connecting assemblies are connected between every two adjacent S-shaped heat exchange assemblies and used for connecting the multiple S-shaped heat exchange assemblies end to end, the heat exchange outer pipe liquid inlet connectors are arranged at the head ends of the multiple S-shaped heat exchange assemblies, and the heat exchange outer pipe liquid outlet connectors are arranged at the tail ends of the multiple S-shaped heat exchange assemblies. Each S-shaped heat exchange assembly comprises a first outer pipe, a second outer pipe, a first inner pipe, a second inner pipe and a second transition connecting assembly, wherein the first outer pipe and the second outer pipe are arranged in parallel, the first inner pipe penetrates through the first outer pipe, the second inner pipe penetrates through the second outer pipe, and the second transition connecting assemblies are connected between the first inner pipe and the second inner pipe and between the first outer pipe and the second outer pipe. By means of the scheme, the device has the advantages of being simple in structure, small in occupied size and the like.

Description

Technical Field

[0001] This utility model relates to the field of heat exchanger manufacturing technology, and in particular to a tubular heat exchanger. Background Technology

[0002] A heat exchanger is a device used to transfer heat between fluids at different temperatures, and it is widely used in industry and daily life. Based on its structure and heat transfer method, it can be classified into: tubular heat exchangers, plate heat exchangers, and finned heat exchangers. Tubular heat exchangers consist of a series of parallel pipes, with one fluid flowing inside the pipes and another flowing outside. These include serpentine, shell-and-tube, and tubular types. Plate heat exchangers consist of multiple parallel metal plates, with fluid flowing between the plates, transferring heat through heat conduction. Finned heat exchangers increase the heat transfer area by machining fins onto the metal surface. Currently, existing serpentine tubular heat exchangers occupy a large volume, making them inconvenient to install and use.

[0003] Therefore, there is an urgent need to develop a tubular heat exchanger with advantages such as simple structure and small size. Utility Model Content

[0004] To address the above problems, the purpose of this utility model is to provide a tubular heat exchanger. The technical solution adopted by this utility model is as follows:

[0005] A tubular heat exchanger includes a rear support frame and a front support frame in the shape of regular polygons, a central support frame disposed between the rear support frame and the front support frame, a plurality of serpentine heat exchange components arranged in a ring array on the outer edges of the rear support frame and the front support frame, a first transition connection component connecting two adjacent sets of serpentine heat exchange components and connecting the heads and tails of the plurality of serpentine heat exchange components, a heat exchange outer tube liquid inlet joint disposed at the head end of the plurality of serpentine heat exchange components, and a heat exchange outer tube liquid outlet joint disposed at the tail end of the plurality of serpentine heat exchange components.

[0006] Any of the serpentine heat exchange components includes a first outer tube and a second outer tube arranged in parallel, a first inner tube that passes through the first outer tube, a second inner tube that passes through the second outer tube, and a second transition connection component connecting the first inner tube and the second inner tube, and the first outer tube and the second outer tube.

[0007] The first transition connection assembly and the second transition connection assembly have the same structure. The second transition connection assembly includes a first L-bend, a first straight pipe and a second L-bend connected sequentially between the first inner pipe and the second inner pipe, a first tee pipe disposed at the end of the first outer pipe, a second tee pipe disposed at the end of the second outer pipe, an outer pipe connecting pipe connecting the first tee pipe and the second tee pipe and connecting the first outer pipe and the second outer pipe, a first plug body disposed on the first tee pipe and sealed to the first inner pipe, and a second plug body disposed on the second tee pipe and sealed to the second inner pipe. The first inner pipe passes through the first tee pipe and the second inner pipe passes through the second tee pipe.

[0008] Preferably, the rear support frame and the front support frame are in the shape of a regular hexagon or a regular octagon.

[0009] Furthermore, two clamps are provided on each side of the rear support frame and the front support frame; the ends of the first outer tube and the second outer tube are fixed inside the clamps.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] (1) This utility model provides installation support by setting up a regular polygonal rear support frame and a front support frame, and connects them with a central support frame. Two clamps are set on either side of the rear support frame and the front support frame to ensure reliable installation of the serpentine heat exchange component.

[0012] (2) By setting a first transition connection component and a second transition connection component, the present invention connects adjacent serpentine heat exchange components using the second transition connection component, thereby shortening the connection length and reducing equipment investment costs.

[0013] In summary, this utility model has the advantages of simple structure and small size, and has high practical and promotional value in the field of heat exchanger manufacturing technology. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope of protection. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the serpentine heat exchange component and the first transition connection component in this utility model.

[0017] Figure 3 This is a structural diagram of the central support frame, rear support frame, and front support frame in this utility model.

[0018] In the above figures, the component names corresponding to the reference numerals are as follows:

[0019] 1. Central support frame; 2. Rear support frame; 3. Front support frame; 4. Serpentine heat exchanger assembly; 5. First transition connection assembly; 6. Heat exchanger outer tube inlet connector; 7. Heat exchanger outer tube outlet connector; 21. Clamp; 41. First outer tube; 42. First inner tube; 43. Second outer tube; 44. Second inner tube; 45. Second transition connection assembly; 451. First L-bend; 452. First straight tube; 453. Second L-bend; 454. First tee pipe; 455. Second tee pipe; 456. First plug; 457. Second plug; 458. Outer tube connecting pipe. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this application clearer, the present invention will be further described below with reference to the accompanying drawings and embodiments. The embodiments of this utility model include, but are not limited to, the following embodiments. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0021] In this embodiment, the term "and / or" is merely a description of the relationship between related objects, indicating that there can be three relationships. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone.

[0022] The terms "first" and "second," etc., used in the specification and claims of this embodiment are used to distinguish different objects, not to describe a specific order of objects. For example, "first target object" and "second target object," etc., are used to distinguish different target objects, not to describe a specific order of target objects.

[0023] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0024] In the description of the embodiments in this application, unless otherwise stated, "multiple" means two or more. For example, multiple processing units means two or more processing units; multiple systems means two or more systems.

[0025] like Figures 1 to 3 As shown, this embodiment provides a tubular heat exchanger. Taking six sets of serpentine heat exchange components 4 as an example, it includes a hexagonal rear support frame 2 and a front support frame 3, a central support frame 1 positioned between the rear support frame 2 and the front support frame 3, several serpentine heat exchange components 4 arranged in a ring array on the outer edges of the rear support frame 2 and the front support frame 3, a first transition connection component 5 connecting adjacent sets of serpentine heat exchange components 4 and connecting the ends of the serpentine heat exchange components 4, a heat exchange outer tube liquid inlet connector 6 located at the beginning of the serpentine heat exchange components 4, and a heat exchange outer tube liquid outlet connector 7 located at the end of the serpentine heat exchange components 4. The first liquid enters through the heat exchange outer tube liquid inlet connector 6, and the second liquid enters through the inner tube of the serpentine heat exchange component 4 at the location of the heat exchange outer tube liquid inlet connector 6. The outer tube liquid (first liquid) exits through the heat exchange outer tube liquid outlet connector 7, and the second liquid exits through the inner tube at the end of the serpentine heat exchange component 4. To ensure the reliability of the serpentine heat exchanger assembly 4, two clamps 21 are provided on either side of the rear support frame 2 and the front support frame 3 to fix the ends of the first outer tube 41 and the second outer tube 43 inside the clamps 21.

[0026] In this embodiment, the serpentine heat exchange assembly 4 includes a first outer tube 41 and a second outer tube 43 arranged in parallel, a first inner tube 42 that passes through the first outer tube 41, a second inner tube 44 that passes through the second outer tube 43, and a second transition connection assembly 45 that connects the first inner tube 42 and the second inner tube 44, and the first outer tube 41 and the second outer tube 43. The first transition connection component 5 and the second transition connection component 45 have the same structure. Taking the second transition connection component 45 as an example, it includes a first L-bend 451, a first straight pipe 452, and a second L-bend 453 connected sequentially between the first inner pipe 42 and the second inner pipe 44; a first tee pipe 454 disposed at the end of the first outer pipe 41; a second tee pipe 455 disposed at the end of the second outer pipe 43; an outer pipe connecting pipe 458 connecting the first tee pipe 454 and the second tee pipe 455 and connecting the first outer pipe 41 and the second outer pipe 43; a first plug 456 disposed on the first tee pipe 454 and sealed to the first inner pipe 42; and a second plug 457 disposed on the second tee pipe 455 and sealed to the second inner pipe 44. The first inner pipe 42 passes through the first tee pipe 454, and the second inner pipe 44 passes through the second tee pipe 455.

[0027] In this embodiment, the first liquid is connected to the inlet connector 6 of the heat exchanger outer tube and enters the first outer tube 41. It then enters the second outer tube 43 through the outer tube connecting pipe 458, and so on, until it is discharged from the outlet connector 7 of the heat exchanger outer tube. In addition, the second liquid being heat-exchanged enters from the first inner tube 42 at the beginning, passes through the first L-bend 451, the first straight pipe 452 and the second L-bend 453 to enter the second inner tube 44, and so on, until it is discharged from the second inner tube 44 of the serpentine heat exchanger assembly 4 at the end.

[0028] The above embodiments are merely preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Any changes made based on the design principles of this utility model, or any non-creative changes made on this basis, shall fall within the scope of protection of this utility model.

Claims

1. A tube heat exchanger, characterized by, The application relates to a heat exchange device, which comprises a rear support frame (2) and a front support frame (3) in the shape of a regular polygon, a central support frame (1) arranged between the rear support frame (2) and the front support frame (3), a plurality of serpentine heat exchange assemblies (4) arranged in a ring array on the outer side edges of the rear support frame (2) and the front support frame (3), a first transition connecting assembly (5) connected between two adjacent groups of the serpentine heat exchange assemblies (4) and connecting the serpentine heat exchange assemblies (4) in a head-to-tail mode, a heat exchange outer pipe liquid inlet joint (6) arranged at the head end of the serpentine heat exchange assemblies (4), and a heat exchange outer pipe liquid outlet joint (7) arranged at the tail end of the serpentine heat exchange assemblies (4). Any one of the serpentine heat exchange assemblies (4) comprises first outer pipes (41) and second outer pipes (43) arranged in parallel, a first inner pipe (42) penetrating the first outer pipes (41), a second inner pipe (44) penetrating the second outer pipes (43), and a second transition connecting assembly (45) connected between the first inner pipe (42) and the second inner pipe (44) and between the first outer pipes (41) and the second outer pipes (43). The first transition connecting assembly (5) and the second transition connecting assembly (45) are of the same structure, and the second transition connecting assembly (45) comprises a first L-shaped elbow (451) connected between the first inner pipe (42) and the second inner pipe (44) in sequence, a first straight pipe (452) and a second L-shaped elbow (453), a first three-way pipe (454) arranged at the end of the first outer pipe (41), a second three-way pipe (455) arranged at the end of the second outer pipe (43), an outer pipe communication pipe (458) connected between the first three-way pipe (454) and the second three-way pipe (455) and communicating the first outer pipe (41) and the second outer pipe (43), a first plug body (456) arranged on the first three-way pipe (454) and sealingly connected with the first inner pipe (42), and a second plug body (457) arranged on the second three-way pipe (455) and sealingly connected with the second inner pipe (44); the first inner pipe (42) penetrates the first three-way pipe (454), and the second inner pipe (44) penetrates the second three-way pipe (455).

2. A tube heat exchanger according to claim 1, wherein The rear support frame (2) and the front support frame (3) are in the shape of a regular hexagon or a regular octagon.

3. A tubular heat exchanger according to claim 1 or 2, characterised in that Two clamps (21) are arranged on any one side of the rear support frame (2) and the front support frame (3); and the ends of the first outer pipes (41) and the second outer pipes (43) are fixed in the clamps (21).

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