Corrosion-resistant shell-and-tube graphite heat exchanger capable of efficiently exchanging heat

Abstract

The utility model relates to the field of graphite heat exchangers, and discloses an efficient heat exchange corrosion-resistant shell-and-tube graphite heat exchanger which comprises a graphite heat exchanger body provided with a protection mechanism. The protection mechanism comprises a connecting disc, a first corrosion-resistant inner shell, a second corrosion-resistant inner shell, a first corrosion-resistant outer shell, a second corrosion-resistant outer shell, a connecting pipe, an abutting block, a filter plate and an arc-shaped limiting block. The connecting disc is fixedly arranged on the outer side of the graphite heat exchanger in a sleeving mode, the connecting pipe is in threaded connection with the graphite heat exchanger, the abutting block is fixedly installed on the outer side of the connecting pipe, and the abutting block abuts against the first corrosion-resistant shell. The graphite heat exchanger has the advantages that the graphite heat exchanger is fast and convenient to replace when needing to be replaced, corrosion resistance is guaranteed, in addition, after the connecting pipe is connected in a threaded mode, the filter plate arranged in the connecting pipe can filter external media, impurities are prevented from entering the graphite heat exchanger, and efficient heat exchange of the graphite heat exchanger is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of graphite heat exchanger technology, and in particular to a high-efficiency, corrosion-resistant shell-and-tube graphite heat exchanger. Background Technology

[0002] A graphite heat exchanger is a heat exchanger whose heat transfer components are made of graphite. The working principle of a graphite heat exchanger is as follows: based on the acid corrosion resistance and good thermal conductivity of graphite, a flow guiding device is made of graphite. When two media pass through each other, the high-temperature medium continuously transfers heat to the graphite heat exchanger, and the low-temperature medium continuously receives heat from the heat exchanger, thereby realizing heat exchange.

[0003] While existing technologies, such as the corrosion-resistant shell-and-tube graphite heat exchanger disclosed in patent announcement number CN213021122U, offer some corrosion resistance, the corrosion resistance of the shell-and-tube design deteriorates over time during normal operation. Furthermore, the inconvenience of disassembling and replacing the shell in existing graphite heat exchangers affects their corrosion resistance. Additionally, the heat exchanger requires the inflow of an external medium, which may contain impurities. These impurities can clog the internal pores, leading to a decrease in heat exchange efficiency. Therefore, a high-efficiency, corrosion-resistant shell-and-tube graphite heat exchanger is needed to address these issues.

[0004] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0005] The purpose of this invention is to provide a high-efficiency, corrosion-resistant shell-and-tube graphite heat exchanger to solve the above-mentioned problems.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a high-efficiency heat exchange corrosion-resistant shell-and-tube graphite heat exchanger, comprising:

[0007] A graphite heat exchanger, wherein a protective mechanism is provided on the graphite heat exchanger;

[0008] The protective mechanism includes a connecting plate, a corrosion-resistant inner shell I, a corrosion-resistant inner shell II, a corrosion-resistant outer shell I, a corrosion-resistant outer shell II, a connecting pipe, an abutment block, a filter plate, and an arc-shaped limiting block;

[0009] The connecting plate is fixedly sleeved on the outside of the graphite heat exchanger, the connecting pipe is threadedly connected to the graphite heat exchanger, the abutting block is fixedly installed on the outside of the connecting pipe, the abutting block abuts against the first corrosion-resistant shell, the filter plate is fixedly installed inside the connecting pipe, the arc-shaped limiting block is fixedly installed between the two connecting plates, and the outer side of the second corrosion-resistant shell contacts the inner side of the arc-shaped limiting block.

[0010] A further feature of this invention is that the protective mechanism includes a splicing block, a splicing groove, a plug rod, and a slot. The splicing block is fixedly installed on the side of the first corrosion-resistant inner shell, the splicing groove is opened on the side of the second corrosion-resistant inner shell, and the splicing block is engaged with the splicing groove. The plug rod is fixedly installed on the inner side of the first corrosion-resistant outer shell and the second corrosion-resistant outer shell. Slots are opened on the outer sides of both the first corrosion-resistant inner shell and the second corrosion-resistant inner shell, and the plug rod is engaged with the slot.

[0011] A further feature of this invention is that the graphite heat exchanger has an upper water inlet and a lower water inlet, and two connecting pipes are respectively threaded into the upper water inlet and the lower water inlet.

[0012] By adopting the above technical solution, it is convenient to connect with the connecting pipe.

[0013] A further feature of this invention is that: a through hole 1 is provided on the corrosion-resistant inner shell 1, and a through hole 2 is provided on the corrosion-resistant outer shell 1, with the connecting pipe in contact with the inner walls of the through hole 1 and the through hole 2.

[0014] A further feature of this invention is that a sealing gasket is embedded on the outside of the connecting pipe, and the sealing gasket is in sealing contact with the through hole.

[0015] By adopting the above technical solution, the sealing of the connection is guaranteed.

[0016] A further feature of this invention is that both the first corrosion-resistant inner shell and the second corrosion-resistant inner shell are in contact with the outer side of the graphite heat exchanger, and the first corrosion-resistant outer shell and the second corrosion-resistant outer shell are in contact with the outer sides of the first corrosion-resistant inner shell and the second corrosion-resistant inner shell, respectively.

[0017] By adopting the above technical solution, it is convenient to assemble and combine the components.

[0018] A further feature of this invention is that the first corrosion-resistant inner shell, the second corrosion-resistant inner shell, the first corrosion-resistant outer shell, and the second corrosion-resistant outer shell are all in contact with the connecting disc.

[0019] A further feature of this invention is that both the first corrosion-resistant inner shell and the second corrosion-resistant inner shell are made of silicon carbide ceramic, and both the first corrosion-resistant outer shell and the second corrosion-resistant outer shell are made of fiberglass.

[0020] The beneficial effects of this utility model are:

[0021] This utility model utilizes a protective mechanism. Rotating the first corrosion-resistant inner shell and the first corrosion-resistant outer shell allows them to move into the inner side of the arc-shaped limiting block. Then, the assembled second corrosion-resistant inner shell and the second corrosion-resistant outer shell are fitted onto the outside of the graphite heat exchanger, and a connecting pipe is screwed on. The cooperation of the abutment block and the arc-shaped limiting block limits the corrosion-resistant shell, making replacement quick and convenient while maintaining corrosion resistance. Furthermore, after screwing on the connecting pipe, a filter plate inside the connecting pipe filters the external medium, preventing impurities from entering the graphite heat exchanger and ensuring efficient heat exchange. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a three-dimensional structural diagram of a corrosion-resistant shell-and-tube graphite heat exchanger with high efficiency heat exchange proposed in this utility model.

[0024] Figure 2 This is a cross-sectional structural diagram of a corrosion-resistant shell-and-tube graphite heat exchanger with high efficiency heat exchange proposed in this utility model.

[0025] Figure 3 yes Figure 2 A schematic diagram of part A in the diagram.

[0026] Figure 4 yes Figure 2 A schematic diagram of part B in the diagram.

[0027] Figure 5 This is a schematic diagram of the structure of corrosion-resistant inner shell one and corrosion-resistant inner shell two in a high-efficiency heat exchange corrosion-resistant shell-and-tube graphite heat exchanger proposed in this utility model.

[0028] In the diagram, 1. Graphite heat exchanger; 2. Connecting plate; 3. Corrosion-resistant inner shell one; 4. Corrosion-resistant inner shell two; 5. Splicing block; 6. Splicing groove; 7. Corrosion-resistant outer shell one; 8. Corrosion-resistant outer shell two; 9. Insert rod; 10. Slot; 11. Upper water inlet; 12. Connecting pipe; 13. Abutment block; 14. Filter plate; 15. Arc-shaped limiting block; 16. Through hole one; 17. Through hole two. Detailed Implementation

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation", "connection" and "linking" 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 mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through the specific circumstances.

[0030] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0031] See Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 This utility model provides a high-efficiency, corrosion-resistant shell-and-tube graphite heat exchanger, comprising:

[0032] The graphite heat exchanger 1 is equipped with a protective mechanism. It should be noted that the graphite heat exchanger 1 is protected against corrosion by a corrosion-resistant shell. The corrosion-resistant shell can be replaced after a certain period of use to ensure the corrosion resistance effect. The replacement is relatively convenient and also facilitates the filtration of external media to prevent impurities from entering the interior of the graphite heat exchanger 1, thus ensuring the high efficiency of heat exchange in the graphite heat exchanger 1.

[0033] The protective mechanism includes a connecting plate 2, a corrosion-resistant inner shell 1 3, a corrosion-resistant inner shell 2 4, a corrosion-resistant outer shell 1 7, a corrosion-resistant outer shell 2 8, a connecting pipe 12, an abutment block 13, a filter plate 14, and an arc-shaped limiting block 15;

[0034] The connecting plate 2 is fixedly sleeved on the outside of the graphite heat exchanger 1. The connecting pipe 12 is threadedly connected to the graphite heat exchanger 1. The abutting block 13 is fixedly installed on the outside of the connecting pipe 12. The abutting block 13 abuts against the corrosion-resistant shell 7. It should be noted that this can limit the abutment of the corrosion-resistant shell 7.

[0035] The filter plate 14 is fixedly installed inside the connecting pipe 12, and the arc-shaped limiting block 15 is fixedly installed between the two connecting discs 2. The outer side of the corrosion-resistant outer shell 2 8 is in contact with the inner side of the arc-shaped limiting block 15.

[0036] Using the aforementioned protective mechanism, the corrosion-resistant inner shell 3 and the corrosion-resistant outer shell 7 are assembled, and the corrosion-resistant inner shell 4 and the corrosion-resistant outer shell 8 are assembled. The assembled corrosion-resistant inner shell 3 and the corrosion-resistant outer shell 7 are then fitted onto the outside of the graphite heat exchanger 1. Next, the corrosion-resistant inner shell 3 and the corrosion-resistant outer shell 7 are rotated, causing them to move into the inner side of the arc-shaped limiting block 15. Finally, the assembled corrosion-resistant inner shell 4 and the corrosion-resistant outer shell 8 are fitted onto the outside of the graphite heat exchanger 1. The splicing block 5 on the corrosion-resistant inner shell 3 is inserted into the splicing groove 6 on the corrosion-resistant inner shell 4, and then the connecting pipe 12 is screwed onto the graphite heat exchanger 1. The abutment block 13 on the connecting pipe 12 abuts against the corrosion-resistant outer shell 7. This allows for quick assembly of the corrosion-resistant shell and convenient and quick replacement when needed. In addition, the filter plate 14 installed inside the connecting pipe 12 can filter the external medium and prevent impurities from entering the interior of the graphite heat exchanger 1, ensuring efficient heat exchange of the graphite heat exchanger 1.

[0037] Specifically, refer to Figure 3 and Figure 5 The protective mechanism also includes splicing block 5, splicing groove 6, insert rod 9 and slot 10. The splicing block 5 is fixedly installed on the side of the corrosion-resistant inner shell 3. The splicing groove 6 is opened on the side of the corrosion-resistant inner shell 4. The splicing block 5 and the splicing groove 6 are engaged. The insert rod 9 is fixedly installed on the inside of the corrosion-resistant outer shell 7 and the corrosion-resistant outer shell 8. The outside of the corrosion-resistant inner shell 3 and the corrosion-resistant inner shell 4 are both provided with slot 10. The insert rod 9 is engaged with the slot 10.

[0038] The aforementioned protective mechanisms facilitate the assembly of corrosion-resistant inner shell 3 and corrosion-resistant inner shell 4, facilitate the assembly of corrosion-resistant inner shell 3 with corrosion-resistant outer shell 7, and facilitate the assembly of corrosion-resistant inner shell 4 with corrosion-resistant outer shell 8.

[0039] Specifically, refer to Figure 3 The graphite heat exchanger 1 has an upper water inlet 11 and a lower water inlet. Two connecting pipes 12 are threaded into the upper water inlet 11 and the lower water inlet, respectively. It should be noted that this is to facilitate the connection of the connecting pipes 12.

[0040] Specifically, refer to Figure 3 The corrosion-resistant inner shell 3 has a through hole 16, and the corrosion-resistant outer shell 7 has a through hole 17. The connecting pipe 12 is in contact with the inner wall of the through hole 16 and the through hole 17. A sealing gasket is embedded on the outside of the connecting pipe 12, and the sealing gasket is in sealing contact with the through hole 17. It should be noted that this facilitates the connection of the connecting pipe 12 to the upper water inlet 11 and the lower water inlet. In addition, the connecting pipe 12 is connected to the external pipe.

[0041] Specifically, refer to Figure 2 and Figure 4The corrosion-resistant inner shell 3 and the corrosion-resistant inner shell 4 are in contact with the outer side of the graphite heat exchanger 1. The corrosion-resistant outer shell 7 and the corrosion-resistant outer shell 8 are in contact with the outer sides of the corrosion-resistant inner shell 3 and the corrosion-resistant inner shell 4, respectively. The corrosion-resistant inner shell 3, the corrosion-resistant inner shell 4, the corrosion-resistant outer shell 7 and the corrosion-resistant outer shell 8 are all in contact with the connecting plate 2. It should be noted that the corrosion-resistant inner shell 3, the corrosion-resistant inner shell 4, the corrosion-resistant outer shell 7 and the corrosion-resistant outer shell 8 can be limited.

[0042] Specifically, the corrosion-resistant inner shell 1 (3) and corrosion-resistant inner shell 2 (4) are both made of silicon carbide ceramic, while the corrosion-resistant outer shell 1 (7) and corrosion-resistant outer shell 2 (8) are both made of fiberglass. It should be noted that the corrosion-resistant inner shell and the corrosion-resistant outer shell together constitute a corrosion-resistant shell to ensure corrosion resistance.

[0043] Working principle:

[0044] S1: As Figures 1-5 As shown, this is a diagram of the assembled corrosion-resistant shell. When it is necessary to replace the corrosion-resistant shell, first rotate the connecting pipe 12 to remove it. Then, remove the corrosion-resistant outer shell 7 and the corrosion-resistant inner shell 3. Next, rotate the corrosion-resistant inner shell 4 and the corrosion-resistant outer shell 8 to separate the corrosion-resistant outer shell 8 from the arc-shaped limiting block 15. This allows the corrosion-resistant shell to be quickly removed. Then, the corrosion condition of the corrosion-resistant inner shell can be judged. If the corrosion-resistant inner shell can still be used, only the corrosion-resistant outer shell needs to be replaced. The replacement is relatively convenient and can ensure the corrosion resistance of the graphite heat exchanger 1.

[0045] S2: The filter plate 14 installed inside the connecting pipe 12 can filter the external medium and prevent impurities from entering the interior of the graphite heat exchanger 1, ensuring efficient heat exchange of the graphite heat exchanger 1. After the connecting pipe 12 is removed, the filter plate 14 inside the connecting pipe 12 can be cleaned to ensure the subsequent filtration effect.

[0046] The above provides a detailed description of a high-efficiency, corrosion-resistant shell-and-tube graphite heat exchanger with excellent heat exchange capabilities. Specific embodiments have been used to illustrate the principles and implementation methods of this invention. These embodiments are merely illustrative and are intended to aid in understanding the method and core concepts of this invention. It should be noted that those skilled in the art can make various improvements and modifications to this invention without departing from its principles, and these improvements and modifications also fall within the scope of protection of the claims of this invention.

Claims

1. A high-efficiency, corrosion-resistant shell-and-tube graphite heat exchanger, characterized in that, include: A graphite heat exchanger (1) is provided with a protective mechanism; The protective mechanism includes a connecting plate (2), a corrosion-resistant inner shell one (3), a corrosion-resistant inner shell two (4), a corrosion-resistant outer shell one (7), a corrosion-resistant outer shell two (8), a connecting pipe (12), an abutment block (13), a filter plate (14), and an arc-shaped limiting block (15); The connecting plate (2) is fixedly sleeved on the outside of the graphite heat exchanger (1). The connecting pipe (12) is threadedly connected to the graphite heat exchanger (1). The abutting block (13) is fixedly installed on the outside of the connecting pipe (12). The abutting block (13) abuts against the first corrosion-resistant shell (7). The filter plate (14) is fixedly installed inside the connecting pipe (12). The arc-shaped limiting block (15) is fixedly installed between the two connecting plates (2). The outside of the second corrosion-resistant shell (8) contacts the inside of the arc-shaped limiting block (15).

2. The high-efficiency heat exchange corrosion-resistant shell-and-tube graphite heat exchanger according to claim 1, characterized in that, The protective mechanism also includes a splicing block (5), a splicing groove (6), a plug (9), and a slot (10). The splicing block (5) is fixedly installed on the side of the corrosion-resistant inner shell one (3). The splicing groove (6) is opened on the side of the corrosion-resistant inner shell two (4). The splicing block (5) is engaged with the splicing groove (6). The plug (9) is fixedly installed on the inner side of the corrosion-resistant outer shell one (7) and the corrosion-resistant outer shell two (8). The outer side of the corrosion-resistant inner shell one (3) and the corrosion-resistant inner shell two (4) are both provided with slots (10). The plug (9) is engaged with the slots (10).

3. The high-efficiency heat exchange corrosion-resistant shell-and-tube graphite heat exchanger according to claim 1, characterized in that, The graphite heat exchanger (1) is provided with an upper inlet (11) and a lower inlet, and two connecting pipes (12) are threaded into the upper inlet (11) and the lower inlet, respectively.

4. The high-efficiency heat exchange corrosion-resistant shell-and-tube graphite heat exchanger according to claim 1, characterized in that, The corrosion-resistant inner shell (3) has a through hole (16) and the corrosion-resistant outer shell (7) has a through hole (17). The connecting pipe (12) is in contact with the inner wall of the through hole (16) and the through hole (17).

5. A high-efficiency heat exchange corrosion-resistant shell-and-tube graphite heat exchanger according to claim 4, characterized in that, A sealing gasket is embedded on the outside of the connecting pipe (12), and the sealing gasket is in sealing contact with the through hole (17).

6. A high-efficiency heat exchange corrosion-resistant shell-and-tube graphite heat exchanger according to claim 1, characterized in that, The corrosion-resistant inner shell 1 (3) and corrosion-resistant inner shell 2 (4) are in contact with the outer side of the graphite heat exchanger (1), and the corrosion-resistant outer shell 1 (7) and corrosion-resistant outer shell 2 (8) are in contact with the outer side of the corrosion-resistant inner shell 1 (3) and corrosion-resistant inner shell 2 (4), respectively.

7. A high-efficiency heat exchange corrosion-resistant shell-and-tube graphite heat exchanger according to claim 1, characterized in that, The corrosion-resistant inner shell one (3), corrosion-resistant inner shell two (4), corrosion-resistant outer shell one (7) and corrosion-resistant outer shell two (8) are all in contact with the connecting plate (2).

8. A high-efficiency heat exchange corrosion-resistant shell-and-tube graphite heat exchanger according to claim 1, characterized in that, The corrosion-resistant inner shell 1 (3) and corrosion-resistant inner shell 2 (4) are both made of silicon carbide ceramic, while the corrosion-resistant outer shell 1 (7) and corrosion-resistant outer shell 2 (8) are both made of fiberglass.

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