Heat exchanger of sulfur dioxide rectification device

Abstract

The utility model belongs to the technical field of chemical engineering, and particularly relates to a heat exchanger of a sulfur dioxide rectification device, which comprises a box body, a water inlet pipe and a water outlet pipe, the heat exchange structure is arranged in the box body; the water collecting structure comprises a water collecting tank and a water collecting pipe, the water collecting tank is arranged below the heat exchange structure, the water collecting pipe is arranged above the water collecting tank, the heat exchange structure is communicated with the water collecting tank, and the water collecting pipe is communicated with the water collecting tank; the effect of cleaning water drops attached to the inner wall of the pipeline is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of chemical engineering, and particularly relates to a heat exchanger for a sulfur dioxide rectification device. Background Art

[0002] A heat exchanger is a device that transfers part of the heat of a hot fluid to a cold fluid, also known as a heat exchanger. Heat exchangers play an important role in many industrial productions such as chemical engineering, petroleum, power, food, etc. When in use, the heat transfer effect and efficiency of the heat exchanger will directly affect the production capacity and energy consumption of production and processing.

[0003] Chinese Utility Model CN116892846A discloses a heat exchanger, including: a box body, heat exchange tubes, and a heater. The box body is divided into an upper space and a lower space. The upper space is divided into a moving layer and a fixed layer. The lower space is provided with a water inlet and a water outlet. The heat exchange tubes include an outer shell and an inner tube. A first annular cavity is formed between the outer shell and the inner tube. The outer shell is provided with an opening. The bottom end of the outer shell extends to the bottom end of the lower space. The inner tube includes a first tube, a second tube, and a third tube. A second annular cavity is formed between the second tube and the first tube. A third annular cavity is formed between the second tube and the third tube. A circular cavity is formed inside the third tube. The output end of the heater is communicated with the inner tube of the heat exchange tube, and its input end is communicated with the fixed layer through a pipeline.

[0004] However, when the gas in the heat exchange tube encounters external water, water droplets will condense and adhere to the inner wall of the pipeline. The water droplets gather at the bottom of the pipeline and are inconvenient to clean, which will affect the heat transfer efficiency of the heat exchanger. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a heat exchanger for a sulfur dioxide rectification device aiming at the above-mentioned existing technical problems, achieving the effect of cleaning the water droplets adhering to the inner wall of the pipeline.

[0006] In view of this, the utility model provides a heat exchanger for a sulfur dioxide rectification device, including:

[0007] A box body, on the outer side of which a water inlet pipe and a water outlet pipe are respectively arranged;

[0008] A heat exchange structure, which is arranged inside the box body;

[0009] A water collection structure, which includes:

[0010] A water collection tank, which is arranged below the heat exchange structure,

[0011] A water collecting pipe, above the water collection tank there is a water collecting pipe,

[0012] Among them, the heat exchange structure is communicated with the water collecting tank, and the water collecting pipe is communicated with the water collecting tank.

[0013] In this technical solution, water enters the space inside the box body through the water inlet pipe, and steam is introduced into the heat exchange structure. When the steam encounters the low-temperature water, water droplets are condensed and attached to the heat exchange structure. The water droplets flow along the heat exchange structure into the water collecting pipe, and then flow into the water collecting tank through the water collecting pipe, completing the collection of water droplets, which is beneficial to improving the heat exchange efficiency of the gas.

[0014] In the above technical solution, further, a butterfly valve is sleeved on the water collecting pipe.

[0015] In this technical solution, when the water droplets flow into the water collecting pipe, the butterfly valve blocks the reverse flow of the water droplets in the water collecting tank.

[0016] In the above technical solution, further, a drain pipe is provided on the outer wall of the water collecting tank, and a manual valve is provided on the drain pipe.

[0017] In this technical solution, the manual valve is opened to allow the water in the water collecting tank to flow to the external device through the drain pipe, which is beneficial to the recycling of water.

[0018] In the above technical solution, further, the heat exchange structure includes:

[0019] A disk-shaped pipe, which is arranged between the air inlet pipe and the water collecting pipe, and there are two disk-shaped pipes;

[0020] Heat exchange pipes, which are arranged on the two disk-shaped pipes, and there are multiple heat exchange pipes;

[0021] An air inlet pipe, which is arranged above the disk-shaped pipe and penetrates through the top of the box body;

[0022] An air outlet pipe, which is arranged on the side of the disk-shaped pipe and penetrates through the side of the box body;

[0023] A support frame, which is arranged below the disk-shaped pipe and is used to support the heat exchange structure;

[0024] Among them, the heat exchange pipes are communicated with the disk-shaped pipes, the disk-shaped pipes are communicated with the water collecting pipe, the air inlet pipe is communicated with the upper disk-shaped pipe, and the air outlet pipe is communicated with the lower disk-shaped pipe.

[0025] In this technical solution, steam enters the disk-shaped pipe through the air inlet pipe, and then enters the heat exchange pipes. The heat of the steam is transferred to the water. At the same time, water droplets are condensed in the heat exchange pipes and attached to the inner wall of the pipes. After that, the steam enters the bottom disk-shaped pipe again and then flows out of the device through the air outlet pipe and enters the external device.

[0026] In the above technical solution, further, a knocking structure is provided inside the box body, and the knocking structure includes:

[0027] A housing that penetrates through the top of the box body, and a cavity is provided inside the housing;

[0028] A fixing block that is provided on the side of the housing, and a pull ring is provided on the side wall of the fixing block;

[0029] A column that is provided between the fixing block and the disc-shaped pipe, and the top of the column is connected to the bottom of the fixing block. The column penetrates through the housing and extends into the cavity;

[0030] A knocking block that is provided at the end of the column for knocking the heat exchange structure;

[0031] Wherein, a first spring is provided between the housing and the knocking block, and the first spring is sleeved on the column. An airbag structure is provided between the air inlet pipe, the water collecting pipe, the air outlet pipe and the box body.

[0032] In this technical solution, the operator pulls the pull ring, the first spring is compressed, the pull ring is released, and the first spring drives the knocking block on the column to pop out outward due to the elastic force, so that the knocking block impacts the disc-shaped pipe, and the disc-shaped pipe drives the heat exchange assembly to vibrate. Among them, the vibration of the heat exchange assembly causes the water droplets attached to the inner wall of the heat exchange pipe to flow along the pipe into the water collecting pipe, which is beneficial to accelerating the collection of water droplets.

[0033] In the above technical solution, further, the airbag structure includes:

[0034] A fixing ring that is provided on the side of the water collecting pipe;

[0035] A groove that is provided on the inner wall of the fixing ring;

[0036] An airbag that is provided in the groove;

[0037] An air charging pipe that penetrates through the fixing ring and is communicated with the box body and the airbag.

[0038] In this technical solution, a gap is left between the bottom of the box body and the water collecting pipe. Air is introduced into the air charging pipe to make the airbag expand in the groove, which is beneficial to sealing between the water collecting pipe and the bottom of the box body.

[0039] In the above technical solution, further, a vibration damping structure is provided at the bottom of the box body, and the vibration damping structure includes:

[0040] A telescopic column that is diagonally arranged at the bottom of the box body and is connected to the bottom of the box body;

[0041] A convex platform that is provided on the bottom surface of the telescopic column;

[0042] The second spring, and the second spring is sleeved on the telescopic column.

[0043] In this technical solution, the boss is fixed, the box vibrates, and the telescopic column cooperates with the second spring to reduce the vibration frequency until it stops, which is beneficial to extending the service life of the device.

[0044] In the above technical solution, further, a winding column is arranged between the disk-shaped tubes, and the heat exchange tube is spiral and wound around the winding column.

[0045] In this technical solution, the heat exchange tube is spirally wound around the winding column, increasing the contact area between water and the heat exchange tube, which is beneficial to improving the heat exchange efficiency.

[0046] In the above technical solution, further, the knocking block is made of rubber.

[0047] In this technical solution, the knocking block is made of rubber, avoiding deformation of the disk-shaped tube when knocking the disk-shaped tube, which is beneficial to extending the service life of the disk-shaped tube.

[0048] The beneficial effects of the present utility model are:

[0049] 1. Open the manual valve to make the water in the water collecting tank flow through the drain pipe to the external device, which is beneficial to water recovery.

[0050] 2. The operator pulls the pull ring, the first spring is compressed, and the pull ring is released. The first spring drives the knocking block on the column to pop out outward due to the elastic force, causing the knocking block to hit the disk-shaped tube, and the disk-shaped tube drives the entire device to vibrate. Among them, the vibration of the heat exchange tube makes the water droplets attached to the inner wall of the pipe flow along the pipe into the water collecting pipe, which is beneficial to accelerating the collection of water droplets.

[0051] 3. The heat exchange tube is spirally wound around the winding column, increasing the contact area between water and the heat exchange tube, which is beneficial to improving the heat exchange efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 is a perspective view of the present utility model;

[0053] Figure 2 is a cross-sectional view of the present utility model;

[0054] Figure 3 is a perspective view of the heat exchange tube in the present utility model;

[0055] Figure 4 is a perspective view of the knocking structure in the present utility model;

[0056] Figure 5 is a cross-sectional view of the knocking structure in the present utility model;

[0057] Figure 6is the present utility model Figure 2 is an enlarged view of area A in it;

[0058] The markings in the figure are shown as:

[0059] 1. Box body; 2. Water inlet pipe; 3. Water outlet pipe; 4. Air inlet pipe; 5. Water collecting tank; 6. Water collecting pipe; 7. Butterfly valve; 8. Drain pipe; 9. Disk-shaped pipe; 10. Winding column; 11. Heat exchange pipe; 12. Air outlet pipe; 13. Shell; 14. Cavity; 15. Fixed block; 16. Pull ring; 17. Column; 18. Knocking block; 19. First spring; 20. Telescopic column; 21. Boss; 22. Second spring; 23. Groove; 24. Inflatable pipe; 25. Airbag; 26. Support frame; 27. Manual valve; 28. Fixed ring. Specific embodiments

[0060] Next, the technical solutions in the embodiments of the present application will be clearly described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0061] In the description of the present application, it should be noted that the terms used here are only for describing specific embodiments, rather than intending to limit the exemplary embodiments according to the present application. For the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. Technologies, methods, and devices known to those of ordinary skill in the relevant fields may not be discussed in detail, but in appropriate cases, the technologies, methods, and devices should be regarded as part of the authorization specification. In all the examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0062] It should be noted that the terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. generally belong to the same category, and do not limit the number of objects. For example, the first object can be one or multiple. In addition, "and / or" in the description and claims means at least one of the connected objects, and the character " / " generally means that the related objects before and after are in an "or" relationship.

[0063] It should be noted that in the description of the present application, the orientation or positional relationships indicated by the orientation terms such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationships shown in the drawings. It is only for the convenience of describing the present application and simplifying the description. Without contrary explanations, these orientation terms do not indicate and imply that the devices or elements referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the protection scope of the present application; the orientation terms "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0064] It should be noted that in the present application, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising one..." does not exclude the presence of additional identical elements in the process, method, article or device comprising such element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in a reverse order according to the functions involved. For example, the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0065] Embodiment 1:

[0066] As Figures 1 - 3 shown, this embodiment provides a heat exchanger for a sulfur dioxide rectification device, comprising:

[0067] a box body 1, an inlet water pipe 2 and an outlet water pipe 3 are respectively arranged on the outer side of the box body 1; a heat exchange structure, which is arranged inside the box body 1; a water collection structure, the water collection structure includes: a water collection tank 5, the water collection tank 5 is arranged below the heat exchange structure, a water collecting pipe 6, the water collecting pipe 6 is arranged above the water collection tank 5, wherein, the heat exchange structure is communicated with the water collection tank 5, and the water collecting pipe 6 is communicated with the water collection tank 5.

[0068] Water enters the space inside the box body 1 through the inlet water pipe 2, steam is introduced into the heat exchange structure, the steam condenses into water droplets when it encounters the low-temperature water and adheres to the heat exchange structure, the water droplets flow along the heat exchange structure into the water collecting pipe 6, and then flow into the water collection tank 5 through the water collecting pipe 6, completing the collection of water droplets, which is beneficial to improving the heat exchange efficiency of the gas.

[0069] A butterfly valve 7 is sleeved on the water collecting pipe 6. When water droplets flow into the water collecting pipe 6, the butterfly valve 7 blocks the reverse flow of water droplets in the water collecting tank 5. A drain pipe 8 is arranged on the outer wall of the water collecting tank 5, and a manual valve 27 is arranged on the drain pipe 8. By opening the manual valve 27, the water in the water collecting tank 5 can flow through the drain pipe 8 into an external device, which is beneficial to the recycling of water.

[0070] The heat exchange structure includes: a disk-shaped pipe 9, which is arranged between the intake pipe 4 and the water collecting pipe 6, and there are two disk-shaped pipes 9; heat exchange pipes 11, which are arranged on the two disk-shaped pipes 9, and a plurality of heat exchange pipes 11 are provided; an intake pipe 4, which is arranged above the disk-shaped pipe 9 and penetrates through the top of the box body 1; an exhaust pipe 12, which is arranged on the side of the disk-shaped pipe 9 and penetrates through the side of the box body 1; a support frame 26, which is arranged below the disk-shaped pipe 9 and is used to support the heat exchange structure; wherein, the heat exchange pipes 11 are communicated with the disk-shaped pipe 9, the disk-shaped pipe 9 is communicated with the water collecting pipe 6, the intake pipe 4 is communicated with the upper disk-shaped pipe 9, and the exhaust pipe 12 is communicated with the lower disk-shaped pipe 9.

[0071] Steam enters the disk-shaped pipe 9 through the intake pipe 4, and then enters the heat exchange pipes 11. The heat of the steam is transferred to the water. At the same time, water droplets condense in the heat exchange pipes 11 and adhere to the inner wall of the pipes. After that, the steam enters the bottom disk-shaped pipe 9 again and then flows out of the device through the exhaust pipe 12 and enters an external device.

[0072] Embodiment 2:

[0073] As Figures 4 - 6 shown, this embodiment provides a heat exchanger for a sulfur dioxide rectification device. In addition to including the technical solutions of the above embodiment, it also has the following technical features. A knocking structure is arranged in the box body 1, and the knocking structure includes: a shell 13, which penetrates through the top of the box body 1, and a cavity 14 is arranged in the shell 13; a fixing block 15, which is arranged on the side of the shell 13, and a pull ring 16 is arranged on the side wall of the fixing block 15; a column 17, which is arranged between the fixing block 15 and the disk-shaped pipe 9, and the top of the column 17 is connected to the bottom of the fixing block 15, and the column 17 penetrates through the shell 13 and extends into the cavity 14; a knocking block 18, which is arranged at the end of the column 17 and is used to knock the heat exchange structure; wherein, a first spring 19 is arranged between the shell 13 and the knocking block 18, and the first spring 19 is sleeved on the column 17, and an air bag 25 structure is arranged between the intake pipe 4, the water collecting pipe 6, the exhaust pipe 12 and the box body 1.

[0074] The operator pulls the pull ring 16, the first spring 19 is compressed. When the pull ring 16 is released, the first spring 19 drives the striking block 18 on the column 17 to pop outwards due to its elastic force, causing the striking block 18 to impact the disk-shaped pipe 9. The disk-shaped pipe 9 drives the heat exchange assembly to vibrate. Among them, the vibration of the heat exchange assembly causes the water droplets adhering to the inner wall of the heat exchange pipe 11 to flow along the pipe into the water collecting pipe 6, which is beneficial to accelerating the collection of water droplets.

[0075] The structure of the airbag 25 includes: a fixed ring 28, the fixed ring 28 is arranged on the side of the water collecting pipe 6; a groove 23, the groove 23 is arranged on the inner wall of the fixed ring 28; an airbag 25, the airbag 25 is arranged in the groove 23; an air charging pipe 24, the air charging pipe 24 penetrates through the fixed ring 28 and is communicated with the airbag 25 in the box body 1. There is a gap between the bottom of the box body 1 and the water collecting pipe 6. Air is introduced into the air charging pipe 24 to make the airbag 25 expand in the groove 23, which is beneficial to sealing between the water collecting pipe 6 and the bottom of the box body 1.

[0076] A damping structure is arranged at the bottom of the box body 1. The damping structure includes: a telescopic column 20, the telescopic column 20 is arranged diagonally at the bottom of the box body 1 and is connected with the bottom of the box body 1; a boss 21, the boss 21 is arranged on the bottom surface of the telescopic column 20; a second spring 22, the second spring 22 is sleeved on the telescopic column 20. When the boss 21 is fixed and the box body 1 vibrates, the telescopic column 20 and the second spring 22 cooperate to reduce the vibration frequency until it stops, which is beneficial to extending the service life of the device.

[0077] There is a winding column 10 arranged between the disc-shaped pipes 9. The heat exchange pipes 11 are spiral and wound around the winding column 10. The spiral winding of the heat exchange pipes 11 on the winding column 10 increases the contact area between water and the heat exchange pipes 11, which is beneficial to improving the heat exchange efficiency. The knocking block 18 is made of rubber. The knocking block 18 being made of rubber avoids the deformation of the disc-shaped pipe 9 when knocking on it, which is beneficial to extending the service life of the disc-shaped pipe 9. Working principle: Water enters the space inside the box body 1 through the water inlet pipe 2, and steam enters the disc-shaped pipe 9 through the steam inlet pipe 4 and then enters the heat exchange pipes 11. The heat exchange pipes 11 are spiral and wound around the winding column 10, increasing the contact area between water and the heat exchange pipes 11. The water in the box body 1 cools the steam, and at the same time, water droplets condense in the heat exchange pipes 11 and adhere to the inner wall of the pipeline. Then, the steam enters the disc-shaped pipe 9 at the bottom again and flows out of the device through the air outlet pipe 12 and enters an external device. The operator pulls the pull ring 16, and the first spring 19 is compressed. When the pull ring 16 is released, the first spring 19 drives the knocking block 18 on the upright column 17 to pop out outward due to the elastic force, causing the knocking block 18 to impact the disc-shaped pipe 9. The knocking block 18 is made of rubber, avoiding damaging the disc-shaped pipe 9 when knocking on it and affecting the steam flow. The disc-shaped pipe 9 drives the entire device to vibrate. Among them, the vibration of the heat exchange pipes 11 causes the water droplets adhering to the inner wall of the pipeline to flow along the pipeline into the water collecting pipe 6. The boss 21 is fixed, and the box body 1 vibrates. The telescopic column 20 cooperates with the second spring 22 to reduce the vibration frequency until it stops. There is a gap between the bottom of the box body 1 and the water collecting pipe 6. Air is introduced into the air charging pipe 24 to make the airbag 25 expand in the groove 23, sealing the water collecting pipe 6 and the bottom of the box body 1. The butterfly valve 7 controls the water droplet flow rate and flows into the water collecting tank 5. The manual valve 27 is opened to make the water in the water collecting tank 5 flow out to an external device through the drain pipe 8.

[0078] The embodiments of the present application have been described above in conjunction with the accompanying drawings. Without conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application is not limited to the above specific implementation manners. The above specific implementation manners are merely illustrative and not restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims, and all belong to the protection scope of the present application.

Claims

1. A heat exchanger for a sulfur dioxide distillation device, characterized in that ,include: A box body (1), wherein a water inlet pipe (2) and a water outlet pipe (3) are respectively arranged on the outer side of the box body (1); A heat exchange structure, wherein the heat exchange structure is arranged inside the box (1); A water collection structure, the water collection structure comprising: A water collecting tank (5), wherein the water collecting tank (5) is arranged below the heat exchange structure, A water collecting pipe (6), wherein a water collecting pipe (6) is disposed above the water collecting tank (5); The heat exchange structure is in communication with the water collecting tank (5), and the water collecting pipe (6) is in communication with the water collecting tank (5).

2. A heat exchanger for a sulfur dioxide distillation device according to claim 1, characterized in that: The water collecting pipe (6) is sleeved with a butterfly valve (7).

3. The heat exchanger for a sulfur dioxide distillation device according to claim 1, characterized in that: A drainage pipe (8) is provided on the outer wall of the water collecting box (5), and a manual valve (27) is provided on the drainage pipe (8).

4. The heat exchanger for a sulfur dioxide distillation device according to claim 1, characterized in that: The heat exchange structure comprises: A coil-shaped pipe (9), wherein the coil-shaped pipe (9) is arranged between the air intake pipe (4) and the water collecting pipe (6), and there are two coil-shaped pipes (9); A heat exchange tube (11), wherein the heat exchange tube (11) is arranged on two coil-shaped tubes (9), and a plurality of heat exchange tubes (11) are arranged; An air intake pipe (4), the air intake pipe (4) being arranged above the coil-shaped pipe (9), and the air intake pipe (4) passing through the top of the box body (1); An air outlet pipe (12), wherein the air outlet pipe (12) is arranged on the side of the coil-shaped pipe (9), and the air outlet pipe (12) penetrates the side of the box body (1); A support frame (26), the support frame (26) being arranged below the coiled tube (9) and used for supporting the heat exchange structure; The heat exchange tube (11) is connected to the coil tube (9), the coil tube (9) is connected to the water collecting tube (6), the air inlet pipe (4) is connected to the coil tube (9) at the upper end, and the air outlet pipe (12) is connected to the coil tube (9) at the lower end.

5. The heat exchanger for a sulfur dioxide distillation device according to claim 4, characterized in that: A knocking structure is arranged in the box body (1), and the knocking structure comprises: A shell (13), wherein the shell (13) passes through the top of the box body (1), and a cavity (14) is provided in the shell (13); A fixing block (15), wherein the fixing block (15) is arranged on a side of the housing (13), and a pull ring (16) is arranged on a side wall of the fixing block (15); A column (17), wherein the column (17) is arranged between the fixing block (15) and the coil-shaped tube (9), and the top of the column (17) is connected to the bottom of the fixing block (15), and the column (17) penetrates the shell (13) and extends into the cavity (14); A knocking block (18), wherein the knocking block (18) is arranged at the end of the column (17) and is used to knock the heat exchange structure; A first spring (19) is arranged between the shell (13) and the knocking block (18), and the first spring (19) is sleeved on the column (17). An air bag structure is arranged between the air inlet pipe (4), the water collecting pipe (6), the air outlet pipe (12) and the box body (1).

6. The heat exchanger for a sulfur dioxide distillation device according to claim 5, characterized in that: The airbag (25) structure comprises: A fixing ring (28), wherein the fixing ring (28) is arranged on a side of the water collecting pipe (6); A groove (23), wherein the groove (23) is arranged on the inner wall of the fixing ring (28); An airbag (25), wherein the airbag (25) is disposed in the groove (23); An inflation tube (24), wherein the inflation tube (24) passes through the fixing ring (28) and the box body (1) and is communicated with the air bag (25).

7. The heat exchanger for a sulfur dioxide distillation device according to claim 5, characterized in that: A vibration reduction structure is provided at the bottom of the box body (1), and the vibration reduction structure comprises: A telescopic column (20), wherein the telescopic column (20) is diagonally arranged at the bottom of the box body (1), and the telescopic column (20) is connected to the bottom of the box body (1); A boss (21), wherein the boss (21) is arranged on the bottom surface of the telescopic column (20); A second spring (22), wherein the second spring (22) is sleeved on the telescopic column (20).

8. The heat exchanger for a sulfur dioxide distillation device according to claim 4, characterized in that: A winding column (10) is arranged between the coiled tubes (9); the heat exchange tube (11) is spirally shaped, and the heat exchange tube (11) is wound around the winding column (10).

9. The heat exchanger for a sulfur dioxide distillation device according to claim 6, characterized in that: The knocking block (18) is made of rubber.

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