Graphite heat exchanger with adjustable heat exchange efficiency

Abstract

The utility model discloses a kind of graphite heat exchanger with adjustable heat exchange efficiency, it is related to graphite heat exchanger technical field, including graphite heat exchanger body, graphite heat exchanger body outer wall is detachably coated with two half-cylindrical shape's heat dissipation cover, two heat dissipation covers are formed by splicing with the cylindrical heat conduction cavity compatible with graphite heat exchanger body outer surface, each heat dissipation cover inner wall is provided with helical flow channel, water inlet end of flow channel is communicated with the water inlet pipe being set at the top of heat dissipation cover, water outlet end is communicated with the water outlet pipe being set at the bottom of heat dissipation cover.The utility model is detachably provided with helical flow channel heat dissipation cover on graphite heat exchanger body outer wall, by flow channel inner flow rate control, the heat exchange efficiency regulation ability of equipment is significantly improved.Traditional fixed heat dissipation structure is difficult to adapt to working condition change due to solidification form, and the heat exchange mode of the heat dissipation cover and graphite heat exchanger body one inside one outside of the present device, greatly enhance the heat exchange effect.

Description

Technical Field

[0001] This utility model relates to the field of graphite heat exchangers, and more particularly to a graphite heat exchanger with adjustable heat exchange efficiency. Background Technology

[0002] Graphite heat exchangers, as highly efficient heat transfer devices, are widely used in chemical, pharmaceutical, and food industries, and are particularly suitable for heat exchange scenarios involving highly corrosive media or high-temperature materials. Their core advantage lies in the excellent corrosion resistance and good thermal conductivity of graphite, which effectively facilitates heat transfer between two fluids while avoiding equipment damage or media contamination caused by metal corrosion. In industrial production, graphite heat exchangers are frequently used in processes such as distillation, condensation, cooling, or heating, playing a crucial role in ensuring production continuity and improving energy efficiency.

[0003] Existing graphite heat exchangers mostly employ simple shell-and-tube or perforated designs, lacking effective auxiliary heat exchange methods. This makes it difficult to meet process requirements under conditions demanding rapid heat exchange. Especially when handling high-viscosity media or requiring precise temperature control, relying solely on the heat exchange capacity of the graphite itself often results in excessively large equipment size or unsatisfactory heat exchange performance. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing graphite heat exchangers, which lack effective auxiliary heat exchange methods, and to propose a graphite heat exchanger with adjustable heat exchange efficiency.

[0005] To address the problems existing in the prior art, the present invention adopts the following technical solution: An adjustable heat exchange efficiency graphite heat exchanger includes a graphite heat exchanger body. The outer wall of the graphite heat exchanger body is detachably covered with two semi-cylindrical heat dissipation shrouds. The two heat dissipation shrouds are joined together to form a cylindrical heat-conducting cavity adapted to the outer surface of the graphite heat exchanger body. Each heat dissipation shroud has a spiral flow channel on its inner wall. The inlet end of the flow channel is connected to an inlet pipe located at the top of the heat dissipation shroud, and the outlet end is connected to an outlet pipe located at the bottom of the heat dissipation shroud. Fixing components are provided at both the upper and lower ends of the heat dissipation shroud, and the fixing components are connected to the outer wall of the graphite heat exchanger body.

[0006] Preferably, the fixing component includes a fixing ring, a plurality of connecting rods are symmetrically arranged at the lower end of the fixing ring, a locking block is fixedly arranged at the lower end of the connecting rod, a plurality of connecting blocks are symmetrically arranged at the end of the heat sink, the locking block is locked inside the connecting block, and a fixing bolt connects the connecting rod and the connecting block.

[0007] Preferably, the outer wall of the heat sink is fixedly provided with multiple mounting frames, and heat sink fins are inserted into the grooves of the mounting frames.

[0008] Preferably, the two heat sink end faces are respectively provided with a sealing frame and a corresponding sealing groove, and the sealing frame is inserted into the sealing groove.

[0009] Preferably, the fixing ring includes two semicircular rings, one end of which is rotatably connected by a central shaft, and the other end of which is provided with a fixing block, which is connected by bolts.

[0010] Compared with the prior art, the beneficial effects of this utility model are: In this invention, a detachable spiral-shaped heat dissipation shroud is installed on the outer wall of the graphite heat exchanger body. By controlling the flow velocity within the flow channel, the heat exchange efficiency of the equipment is significantly improved. Traditional fixed heat dissipation structures are difficult to adapt to changes in operating conditions due to their fixed shape. However, the heat exchange method of the heat dissipation shroud and the graphite heat exchanger body, one inside and one outside, greatly enhances the heat exchange effect. Attached Figure Description

[0011] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the exploded structure of the heat sink of this utility model; Figure 3 This is a schematic diagram of the fixing component structure of this utility model; Figure 4 This is a schematic diagram of the flow channel structure of this utility model; Figure 5 For the present utility model Figure 4 Enlarged structural diagram at point A in the middle.

[0012] The numbers in the diagram are as follows: 1. Graphite heat exchanger body; 11. Heat sink cover; 12. Flow channel; 13. Inlet pipe; 14. Outlet pipe; 2. Fixing assembly; 21. Fixing ring; 211. Semi-circular ring; 22. Connecting rod; 23. Clamping block; 24. Connecting block; 25. Fixing bolt; 3. Mounting frame; 31. Heat sink fins; 4. Sealing groove; 41. Sealing frame; 5. Fixing block; 51. Bolt; 52. Central shaft. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0014] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0015] In the description of this specification, the references to terms such as "embodiment," "one embodiment," "some implementations," "exemplary," and "one implementation," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or implementation is included in at least one embodiment or implementation of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or implementation. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or implementations.

[0016] Example: This example provides a graphite heat exchanger with adjustable heat exchange efficiency. See [link to example]. Figure 1-5 Specifically, it includes a graphite heat exchanger body 1, the outer wall of which is detachably covered with two semi-cylindrical heat dissipation shrouds 11. The two heat dissipation shrouds 11 are joined together to form a cylindrical heat-conducting cavity that fits the outer surface of the graphite heat exchanger body 1. Each heat dissipation shroud 11 has a spiral flow channel 12 on its inner wall. The water inlet end of the flow channel 12 is connected to the water inlet pipe 13 located at the top of the heat dissipation shroud 11, and the water outlet end is connected to the water outlet pipe 14 located at the bottom of the heat dissipation shroud 11. The upper and lower ends of the heat dissipation shroud 11 are provided with fixing components 2, which are connected to the outer wall of the graphite heat exchanger body 1.

[0017] In this embodiment, since the two heat dissipation shrouds 11 are semi-cylindrical in shape and the middle part of the graphite heat exchanger body 1 is cylindrical, the two heat dissipation shrouds 11 are spliced ​​together and fit against the outer wall of the graphite heat exchanger body 1 to adapt to the graphite heat exchanger body 1. The heat dissipation shrouds 11 serve as flow channels for the cooling medium (such as water). The spiral-shaped flow channel 12 extends the residence time of the cooling medium in the shroud and increases the contact area with the graphite heat exchanger body 1, thereby enhancing the heat exchange efficiency. The inlet pipe 13 and the outlet pipe 14 form a circulation path for the cooling medium. Cold water enters the flow channel 12 from the top, absorbs the heat transferred by the graphite heat exchanger body 1, and is discharged from the bottom. The flow rate of the water entering the flow channel 12 is controlled by an external water pump to control the time the cooling medium spends in the flow channel 12, thereby adjusting the heat exchange efficiency. When the flow rate is faster, more heat is carried away, and when the flow rate is slower, the heat carried away is slower. The heat-conducting cavity efficiently conducts the heat generated by the body to the cooling medium inside the heat dissipation shroud 11 by wrapping the outer wall of the body, thus achieving active heat dissipation.

[0018] In the specific implementation process, such as Figure 2 and Figure 3 As shown, the fixing component 2 includes a fixing ring 21. Multiple connecting rods 22 are symmetrically arranged at the lower end of the fixing ring 21. A locking block 23 is fixedly arranged at the lower end of the connecting rod 22. Multiple connecting blocks 24 are symmetrically arranged at the end of the heat sink 11. The locking block 23 is locked inside the connecting block 24. A fixing bolt 25 connects the connecting rod 22 and the connecting block 24.

[0019] In this embodiment, the fixing ring 21 is attached to the outer wall of the graphite heat exchanger body 1 and fixed to the graphite heat exchanger body 1 by bolts 51. The locking block 23 is embedded in the inner side of the connecting block 24 to form a limit and prevent the heat dissipation cover 11 from shifting due to vibration or thermal expansion and contraction. The fixing bolt 25 is further tightened to ensure structural stability. The fixing component 2 is used to fix the heat dissipation cover 11 to the outer wall of the graphite heat exchanger body 1.

[0020] In the specific implementation process, such as Figure 1 and Figure 2 As shown, multiple mounting frames 3 are fixedly provided on the outer wall of the heat sink 11, and heat sink fins 31 are inserted into the grooves of the mounting frames 3.

[0021] In this embodiment, the heat dissipation fins 31 are made of a high thermal conductivity material (such as aluminum or copper). By inserting them into the mounting frame 3, the surface area of ​​the heat sink 11 is expanded, accelerating the dissipation of heat into the air. When the heat exchange capacity of the cooling medium (such as water) is insufficient, the heat dissipation fins 31 can assist in dissipating residual heat through air convection, further improving the overall heat exchange efficiency.

[0022] In the specific implementation process, such as Figure 4 and Figure 5 As shown, the two heat sinks 11 are respectively provided with sealing frames 41 and corresponding sealing grooves 4 on their end faces, and the sealing frames 41 are inserted into the sealing grooves 4.

[0023] In this embodiment, the sealing frame 41 and the sealing groove 4 form a sealing barrier through an interference fit to prevent the cooling medium from leaking from the splicing gap of the heat sink 11 and ensure that the medium in the spiral flow channel 12 fully participates in heat exchange.

[0024] In the specific implementation process, such as Figure 2 and Figure 3 As shown, the fixing ring 21 includes two semicircular rings 211. One end of the two semicircular rings 211 is rotatably connected by a central shaft 52, and the other end of the two semicircular rings 211 is provided with a fixing block 5. The fixing block 5 is connected by a bolt 51.

[0025] In this embodiment, the semi-circular ring 211 structure can be opened and closed around the central axis 52, and the other end is fixed by bolts 51 to achieve quick installation and disassembly.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A graphite heat exchanger with adjustable heat exchange efficiency, comprising a graphite heat exchanger body (1), characterized in that: The outer wall of the graphite heat exchanger body (1) is detachably covered with two semi-cylindrical heat dissipation shrouds (11). The two heat dissipation shrouds (11) are joined together to form a cylindrical heat conduction cavity that is adapted to the outer surface of the graphite heat exchanger body (1). The inner wall of each heat dissipation shroud (11) is provided with a spiral flow channel (12). The water inlet end of the flow channel (12) is connected to the water inlet pipe (13) provided at the top of the heat dissipation shroud (11), and the water outlet end is connected to the water outlet pipe (14) provided at the bottom of the heat dissipation shroud (11). The upper and lower ends of the heat dissipation shroud (11) are provided with fixing components (2), and the fixing components (2) are connected to the outer wall of the graphite heat exchanger body (1).

2. The graphite heat exchanger with adjustable heat exchange efficiency according to claim 1, characterized in that: The fixing component (2) includes a fixing ring (21), and a plurality of connecting rods (22) are symmetrically arranged at the lower end of the fixing ring (21). A locking block (23) is fixedly arranged at the lower end of the connecting rod (22). A plurality of connecting blocks (24) are symmetrically arranged at the end of the heat sink (11). The locking block (23) is locked inside the connecting block (24). A fixing bolt (25) connects the connecting rod (22) and the connecting block (24).

3. The graphite heat exchanger with adjustable heat exchange efficiency according to claim 1, characterized in that: The outer wall of the heat sink (11) is fixed with multiple mounting frames (3), and heat sink fins (31) are inserted into the grooves of the mounting frames (3).

4. A graphite heat exchanger with adjustable heat exchange efficiency according to claim 1, characterized in that: The two heat sinks (11) are respectively provided with sealing frames (41) and corresponding sealing grooves (4) on their end faces, and the sealing frames (41) are inserted into the sealing grooves (4).

5. A graphite heat exchanger with adjustable heat exchange efficiency according to claim 2, characterized in that: The fixing ring (21) includes two semicircular rings (211), one end of the two semicircular rings (211) is rotatably connected by a central shaft (52), and the other end of the two semicircular rings (211) is provided with a fixing block (5), which is connected by bolts (51).

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