A device and method for strengthening and rapid cooling of a tube bundle of a formaldehyde oxidizer

Abstract

The application relates to the technical field of heat exchange, in particular to a formaldehyde oxidizer tube bank reinforced rapid cooling device and method. The device comprises a cooling box, the top of the cooling box is provided with an inlet and an outlet, the inside of the cooling box is provided with a condensing pipe which is continuously curved and reciprocally moves along the depth direction of the cooling box, and the inside of the cooling box is further provided with a scraping mechanism which scrapes water drops attached to the inner wall of the condensing pipe. The reciprocally moving of the scraping ring can scrape and treat the water drops condensed and attached to the inner wall of the condensing pipe, the water drops accumulated and fallen to the inside of the lower curved section form water flow, and finally, the water flow is discharged from a drain pipe, so that the water drops are discharged from the condensing pipe in time to avoid the re-dissolution of formaldehyde into the water flow.

Description

Technical Field

[0001] This application relates to the technical field of heat exchange, and in particular to a formaldehyde oxidizer tube-type enhanced rapid cooling device and method. Background Technology

[0002] In the formaldehyde oxidation reaction, a formaldehyde mixture is obtained. To improve reaction efficiency and product purity, an oxidizer is usually required for catalytic reaction. While traditional oxidizer designs can meet basic reaction requirements, they have limitations in improving reaction rate and product separation efficiency. Especially in the tube-and-tube system inside the oxidizer, water vapor and other substances in the formaldehyde mixture need to be separated to facilitate subsequent formaldehyde collection.

[0003] For example, prior art with publication number CN219511334U provides a wastewater discharge cooling device for a pure steam generator. This device is connected to the wastewater drain outlet of the pure steam generator. It is connected to a cooling device via a wastewater drain pipe, utilizing the cooling water within the cooling device to exchange heat with the wastewater, thereby cooling the wastewater. The cooling device is equipped with a temperature sensor, a controller, and a cooling water regulating valve, enabling automatic adjustment of the wastewater discharge temperature.

[0004] The existing technology described above can also be used to cool formaldehyde mixtures, but the following problems still exist: if water vapor and other substances inside the formaldehyde mixture condense inside the pipe and are not removed in time, it may cause blockage inside the pipe. In addition, since formaldehyde is easily soluble in water, if water flow formed by condensation adheres to the inner wall of the pipe, the formaldehyde may dissolve in the water, resulting in a reduction in the amount of formaldehyde gas escaping from the pipe and affecting the subsequent recovery effect of formaldehyde. Summary of the Invention

[0005] To solve the above-mentioned technical problems, this application provides a formaldehyde oxidizer tube-and-tube enhanced rapid cooling device and method, adopting the following technical solution:

[0006] In a first aspect, a formaldehyde oxidizer tube-type enhanced rapid cooling device includes a cooling box, wherein the cooling box is provided with an inlet pipe and an outlet pipe, and further includes:

[0007] A continuously curved condenser tube that can reciprocate is installed inside the cooling box, with its two ends slidably connected to the air inlet pipe and the air outlet pipe, respectively.

[0008] The scraping mechanism installed inside the condenser tube is used to scrape off water droplets that adhere to the tube wall during the condensation process.

[0009] The drainage system, connected to the curved section of the condenser tube, is used to drain the scraped condensate and prevent gas from escaping.

[0010] Preferably, the scraping mechanism includes:

[0011] A scraping ring that can be slidably disposed inside the condenser tube.

[0012] The traction rope is connected to the scraping ring.

[0013] The drive assembly includes a rotating shaft driven by a motor, on which the traction rope is wound.

[0014] Preferably, the scraping ring is also connected to an elastic reset member for driving the scraping ring to reset when the traction rope is released.

[0015] Preferably, a cam disk is provided on the rotating shaft, the condenser tube is connected to the reset spring rod through a connecting plate, and the cam disk cooperates with the guide plate fixed to the connecting plate to drive the condenser tube to reciprocate.

[0016] Preferably, the reciprocating oscillation of the condenser tube is configured to shake off water droplets adhering to its inner wall through inertial force, forming a synergistic water removal mechanism with the scraping mechanism.

[0017] Preferably, the drainage system includes:

[0018] The drain pipe connected to the bend in the condenser tube is configured to form a liquid seal.

[0019] A rubber tube connected to the drain pipe.

[0020] And a transition pipe for collecting condensate.

[0021] Preferably, the rotating shaft is also provided with fan blades for stirring the cooling water in the cooling tank.

[0022] Preferably, it also includes a cooling water circulation system, the system comprising:

[0023] Cooling frame containing cooling medium.

[0024] Water pump.

[0025] And the circulation pipes connecting the cooling frame and the cooling box.

[0026] Secondly, a method for enhanced rapid cooling of a formaldehyde oxidizer tube array includes the following steps:

[0027] S1. Inject cooling water into the cooling tank until the condenser tubes are submerged.

[0028] S2. The formaldehyde mixture is passed into the condenser for condensation.

[0029] S3, drives the scraping ring to scrape water droplets from the condenser tube wall back and forth.

[0030] S4. The condensate is discharged and collected through the drainage system.

[0031] S5. Collect the formaldehyde mixture after cooling and dehydration treatment.

[0032] In summary, this application includes at least one of the following beneficial technical effects:

[0033] 1. In the scraping mechanism designed in this invention, the scraping ring moves up and down to scrape off the water droplets condensed and attached to the inner wall of the condenser tube. The water droplets accumulate and fall into the lower curved section to form a water flow, which is finally discharged from the drain pipe, thereby timely removing the water droplets from the condenser tube and preventing formaldehyde from re-dissolving into the water flow.

[0034] 2. The reciprocating condenser tube designed in this invention can also use its inertia to shake off the water droplets attached to its inner wall. This ensures that while the water droplets attached to the curved section fall off, the water droplets inside the condenser tube can also be shaken off simultaneously. In this way, by combining the scraping of the scraping ring with the shaking off of the condenser tube, the possibility of water droplets adhering to the condenser tube can be avoided.

[0035] 3. The cooling frame designed in this invention can condense the condensate inside the cooling box, thereby avoiding the possibility of uneven condensation or even poor condensation due to the rise in condensate temperature, and fundamentally ensuring the condensation effect of the condenser tube. Attached Figure Description

[0036] Figure 1 This is a three-dimensional structural schematic diagram of the present invention.

[0037] Figure 2 This is a schematic diagram of the internal three-dimensional structure of the cooling box of the present invention.

[0038] Figure 3 This is a schematic diagram of the installation structure between the condenser tube and the traction rope of the present invention.

[0039] Figure 4 This is the present invention. Figure 3 Enlarged view of a portion of point A in the middle.

[0040] Figure 5 This is a schematic diagram of the three-dimensional installation structure between the condenser tube, elastic rope, and rubber tube of the present invention.

[0041] Figure 6 This is the present invention. Figure 5 Enlarged view of section B in the middle.

[0042] Figure 7 This is a schematic diagram of the three-dimensional installation structure between the cooling pipe, water pump, and cooling tank of the present invention.

[0043] Explanation of reference numerals in the attached drawings: 1. Cooling box; 11. Inlet / outlet; 12. Air inlet pipe; 13. Air outlet pipe; 14. Support plate; 2. Condenser pipe; 21. Connecting plate; 22. Return spring rod; 23. Guide plate; 24. Cam plate; 25. Drain pipe; 26. Rubber hose; 27. Transition pipe; 28. Fan blade; 3. Scraping mechanism; 31. Scraping ring; 32. Traction rope; 33. Drive assembly; 331. Support frame; 332. Rotating shaft; 333. Elastic rope; 4. Cooling frame; 41. Connecting pipe one; 42. Water pump; 43. Connecting pipe two. Detailed Implementation

[0044] The following is in conjunction with the appendix Figures 1 to 7 This application will be described in further detail.

[0045] This application discloses a formaldehyde oxidizer tube-type enhanced rapid cooling device and method, which removes water droplets in a timely manner during the condensation process to prevent formaldehyde from re-dissolving into the water flow formed by the accumulation of water droplets.

[0046] Example 1:

[0047] Reference Figure 1 as well as Figure 2 A formaldehyde oxidizer tube-type enhanced rapid cooling device includes a cooling box 1, wherein the cooling box 1 is provided with an inlet pipe 12 and an outlet pipe 13, and further includes:

[0048] The continuously curved condenser tube 2, which can reciprocate, is installed inside the cooling box 1, and its two ends are slidably connected to the air inlet pipe 12 and the air outlet pipe 13, respectively.

[0049] The scraping mechanism 3 installed inside the condenser tube 2 is used to scrape off water droplets that adhere to the tube wall during the condensation process.

[0050] The drainage system connected to the curved section of the condenser tube 2 is used to drain the scraped condensate and prevent gas from escaping.

[0051] In actual operation, condensate is poured into the cooling box 1 through inlet and outlet 11, and the condensate covers the condenser pipe 2 and is level with the top of the cooling box 1.

[0052] Reference Figure 2 The intake pipe 12 is installed through the bottom of the cooling box 1, and the exhaust pipe 13 is installed through the top of the cooling box 1. A support plate 14 is installed inside the cooling box 1, and the condenser pipe 2 is slidably installed through the support plate 14. The two ends of the condenser pipe 2 are slidably connected to the intake pipe 12 and the exhaust pipe 13, respectively.

[0053] The formaldehyde mixture is then pumped into the condenser tube 2 through the inlet pipe 12. At this time, the condensate can condense the formaldehyde mixture through the condenser tube 2. During the condensation process, the water vapor in the formaldehyde mixture condenses on the inner wall of the condenser tube 2, forming water droplets. During the reciprocating movement of the condenser tube 2, its two ends slide inside the inlet pipe 12 and the outlet pipe 13, respectively.

[0054] The condenser tube 2 consists of multiple vertical tubes evenly distributed along the length of the cooling box 1. The vertical sections are connected end to end by curved sections. The vertical tubes and curved sections work together to extend the condensation path of the condenser tube 2. In other words, the multiple turns and detours of the condenser tube 2 ensure the condensation effect of the formaldehyde mixture.

[0055] In order to prevent formaldehyde from re-dissolving in the water inside the condenser tube 2, the scraping ring 31 designed in this invention can scrape off the water droplets in the condenser tube 2. Specifically, the scraping mechanism 3 includes: a scraping ring 31, which is slidably disposed inside the condenser tube 2.

[0056] The traction rope 32, with one section running through and inside the condenser tube 2, is mounted on the scraping ring 31.

[0057] The drive assembly 33 includes a rotating shaft 332 driven by a motor, and the traction rope 32 is wound around the rotating shaft 332.

[0058] The scraping ring 31 is also connected to an elastic reset member, which is used to drive the scraping ring 31 to reset when the traction rope 32 is released.

[0059] Reference Figure 3 as well as Figure 4 The drive assembly 33 includes two supports 331 symmetrically arranged along the length of the cooling box 1. The supports 331 are installed at the bottom of the cooling box 1. The two ends of the rotating shaft 332 are respectively mounted on the two supports 331 through bearings. The end of the traction rope 32 away from the scraping ring 31 is wrapped around the rotating shaft 332. The elastic reset component is preferably an elastic rope 333. The end of the elastic rope 333 away from the scraping ring 31 passes through the condenser pipe 2 and is installed at the top of the cooling box 1.

[0060] The traction rope 32 and the elastic rope 333 are designed to be sealed at their contact points with the condenser pipe 2, for example, by designing a telescopic sealing sleeve (such as a bellows structure). One end of the sleeve is fixed to the outer wall of the condenser pipe 2, and the other end is fixed to the rope (such as the traction rope 32 and the elastic rope 333) to prevent seal failure during movement. The end of the rotating shaft 332 away from the exhaust pipe 13 is rotatably mounted on the side wall of the cooling box 1. A drive motor is mounted on the side wall of the cooling box 1 via a motor mount, and the output shaft of the drive motor is connected to the end of the rotating shaft 332 away from the exhaust pipe 13. The scraping ring 31 is set on the inner wall of the vertical pipe. In actual operation, at the beginning... When positioned, the scraping ring 31 is at the top of the vertical section. After the condenser tube 2 condenses the formaldehyde mixture for a period of time, the drive motor is started. The output shaft of the drive motor drives the rotating shaft 332 to rotate. During the rotation of the rotating shaft 332, the traction rope 32 can drive the scraping ring 31 to move down. During the downward movement of the scraping ring 31, the water droplets attached to the inner wall of the condenser tube 2 can be scraped off. At this time, the elastic rope 333 is pulled up. After the rotating shaft 332 rotates a certain number of times, the length of the traction rope 32 is exactly the length of the vertical tube. The traction rope 32 drives the scraping ring 31 to move to the bottom of the vertical tube without entering the inside of the curved section.

[0061] At this time, the output shaft of the drive motor reverses to release the traction rope 32, the elastic rope 333 resets and drives the scraping ring 31 to reset, and at the same time, the traction rope 32 resets. Repeating the above actions can drive the scraping ring 31 to slide back and forth inside the vertical pipe to scrape off the attached water droplets, and then the scraped water droplets form a water flow in the lower curved section.

[0062] A cam disk 24 is provided on the rotating shaft 332. The condenser tube 2 is connected to the reset spring rod 22 through the connecting plate 21. The cam disk 24 cooperates with the guide plate 23 fixed to the connecting plate 21 to drive the condenser tube 2 to reciprocate.

[0063] Among them, a connecting plate 21 is installed on the part of the condenser tube 2 located at the bottom of the support plate 14, a reset spring rod 22 is installed on the support plate 14, the telescopic end of the reset spring rod 22 is installed on the connecting plate 21, a guide plate 23 is installed at the bottom of the connecting plate 21, and a cam disk 24 that cooperates with the guide plate 23 is installed on the rotating shaft 332, and the guide plate 23 abuts against the cam disk 24.

[0064] The reciprocating oscillation of the condenser tube 2 is configured to shake off water droplets adhering to its inner wall through inertial force, forming a synergistic water removal mechanism with the scraping mechanism 3.

[0065] The cam disk 24 includes a fixed disk mounted on the rotating shaft 332. Multiple arc-shaped protrusions are evenly arranged on the fixed disk along its circumference. In operation, the rotating shaft 332 rotates, driving the cam disk 24 to rotate. The cam disk 24 rotates, driving the arc-shaped protrusions to move the guide plate 23. As the arc-shaped protrusions rotate around the circumference, they drive the guide plate 23 to move upward. As the guide plate 23 moves upward, it drives the condenser tube 2 to move upward through the connecting plate 21. At this time, the reset spring rod 22 is compressed. When the arc-shaped protrusions move out of the guide plate 23, the guide plate 23 has a tendency to move downward. Under the influence of the gravity of the condenser tube 2 and the reset force of the telescopic end of the reset spring rod 22, the condenser tube 2 moves downward. The above actions are repeated, so the condenser tube 2 can swing up and down in the vertical direction.

[0066] Therefore, by utilizing the inertial force generated during the reciprocating motion of the condenser tube 2, an active shaking effect is formed on the water droplets attached to the inner wall of the tube. This inertial shaking mechanism has full coverage of the entire pipe section, which means that it can not only ensure that the water droplets attached to the curved section of the condenser tube 2 fall off efficiently, but also act simultaneously on the tiny water droplets on the inner wall of the straight section, avoiding the accumulation of local water droplet residue.

[0067] Furthermore, the synergistic design of the scraping ring 31 and inertial vibration further eliminates the risk of water droplet adhesion. The scraping ring 31 is fitted inside the condenser tube 2 and slides back and forth inside the condenser tube 2, which can directly scrape off the water droplets attached to the outer surface of the tube wall, while inertial vibration can remove water droplets from the inner wall of the condenser tube 2. The dual action of internal and external means forms a synergistic mechanism of scraping and vibration. This synergistic method can not only greatly improve the efficiency of water droplet removal, but also avoid the limitations of a single removal method, such as the difficulty of removing water droplets in the curved section of the tube by scraping alone, and the difficulty of completely removing stubborn water droplets attached to the inner wall of the condenser tube 2 by vibration alone, thus fundamentally reducing the probability of water droplets adhering to the surface of the condenser tube 2.

[0068] In addition, the reciprocating swaying of the condenser tube 2 can change its position in the condensate water. On the one hand, it can prevent the condenser tube 2 from being in a stagnant water area with slow condensate water flow for a long time, thus preventing the condensation capacity from decreasing due to local water temperature rise. On the other hand, this dynamic adjustment can ensure that the outer wall of the condenser tube 2 is always in full contact with the fresh condensate water at a lower temperature, forming a continuous and stable temperature gradient to ensure the condensation effect of the condenser tube 2.

[0069] Continue to refer to Figure 5 as well as Figure 6 The drainage system includes:

[0070] The drain pipe 25, which is connected to the bend of the condenser tube 2, is configured to form a liquid seal.

[0071] A rubber tube 26 connected to the drain pipe 25.

[0072] And a transition tube 27 for collecting condensate.

[0073] The drain pipe 25 has a U-shaped structure and is located on the curved section of the condenser pipe 2 near the bottom of the cooling box 1. Multiple rubber tubes 26 are provided and correspond one-to-one with the drain pipe 25, and are installed through the bottom of the cooling box 1. The end of the drain pipe 25 away from the condenser pipe 2 is connected to the corresponding rubber tube 26. The ends of the rubber tubes 26 away from the drain pipe 25 are connected to a transition pipe 27.

[0074] The rubber tube 26 can be stretched a certain distance, thus ensuring that the drain pipe 25 will not be rigidly broken during the reciprocating swing of the condenser tube 2. The drain pipe 25 is designed as a communicating vessel structure. In actual operation, after the water flow is formed in the curved section, it flows into the U-shaped section of the drain pipe 25. The height of the end of the U-shaped section near the condenser tube 2 is higher than the height of the end of the U-shaped section away from the condenser tube 2. When the water flow in the curved section accumulates to a certain depth, the water flows out from the end of the U-shaped section near the condenser tube 2 to the end of the U-shaped section away from the condenser tube 2. The outflowing water flows into the transition pipe 27 after being discharged into the rubber tube 26, and is finally collected and treated uniformly.

[0075] The U-shaped section of the drain pipe 25 always contains water, which, in conjunction with the drain pipe 25, can perform liquid sealing treatment on the inside of the condenser 2, preventing formaldehyde mixed gas from escaping from the drain pipe 25.

[0076] Furthermore, the above steps can promptly drain the water droplets and water flow inside the condenser tube 2, preventing the water droplets adhering to the inner wall of the condenser tube 2 from continuously contacting the incompletely condensed formaldehyde inside the condenser tube 2, which could lead to the formaldehyde redissolving in the water and improve the subsequent formaldehyde recovery efficiency.

[0077] Looking back Figure 5 If the condensate remains stagnant for a long time, the heat exchange will only occur in the contact area between the condensate and the condenser tube 2. This will cause the condensate near the condenser tube 2 to have a lower temperature due to continuous absorption of cold energy, while the condensate far from the condenser tube 2 will have a higher temperature because it cannot contact the condenser tube 2 in time and the heat is difficult to transfer. This will eventually result in a significant temperature stratification. The fan blades 28 provided by this invention can stir the condensate. Specifically, two sets of fan blades 28 are symmetrically arranged along the length of the rotating shaft 332. Multiple fan blades 28 are evenly arranged around the circumference of the rotating shaft 332 and installed on the rotating shaft 332.

[0078] In actual operation, the rotating shaft 332 can drive the fan blades 28 to rotate synchronously. The fan blades 28 can agitate the condensate during rotation, preventing the condensate from being in a stagnant state, which could lead to uneven condensation due to the condensate temperature being high near the condenser tube 2 and low far from the condenser tube 2.

[0079] Thus, through the synchronous stirring of the fan blades 28, the condensate is always in a dynamic circulation state, the temperature difference stratification is completely broken, and the temperature of the condensate in all areas inside the device can be kept uniform, thereby ensuring that the heat exchange between the condensate and the condenser tube 2 is carried out efficiently and stably throughout the entire area.

[0080] Example 2: Refer to Figure 7 Based on Embodiment 1, a cooling water circulation system is provided, the system comprising:

[0081] Cooling frame 4 containing cooling medium.

[0082] Water pump 42.

[0083] And the circulation pipe connecting the cooling frame 4 and the cooling box 1.

[0084] A cooling frame 4 is provided on the top of the cooling box 1. A connecting pipe 41 is provided between the cooling frame 4 and the top of the cooling box 1. Both ends of the connecting pipe 41 are respectively connected to the cooling frame 4 and the top of the cooling box 1. A water pump 42 that works with the cooling frame 4 is also installed on the cooling frame 4. A connecting pipe 43 is installed on the water pump 42. The end of the connecting pipe 43 away from the water pump 42 is connected to the bottom side of the cooling box 1.

[0085] At this point, the inlet and outlet 11 are blocked. In specific operation, after the condenser tube 2 has been condensing for a period of time, industrial ice is put into the cooling frame 4, and then water is poured into the cooling frame 4. After the water is cooled down by the industrial ice inside the cooling frame 4, the water pump 42 is started. The water pump 42 discharges the condensate inside the cooling frame 4 into the cooling box 1 through the second connecting pipe 43. At this time, the condensate inside the cooling box 1 that has been heated is squeezed by the newly introduced condensate with a lower temperature and flows into the cooling frame 4 through the first connecting pipe 41. Thus, the condensate inside the cooling box 1 that has been heated can be circulated and cooled down in the above way.

[0086] The above steps ultimately achieve continuous and efficient circulating cooling of the condensate inside the cooling box 1, thereby ensuring the uniformity of the condensate in condensing the formaldehyde mixture from the source.

[0087] Furthermore, by breaking the heat transfer boundary layer through the surging of condensate water, accelerating the heat exchange efficiency, expanding the contact range between condensate tube 2 and low-temperature condensate water through the reciprocating shaking of condensate tube 2, and providing a stable low-temperature foundation through condensate water circulation and cooling, the three factors work together to improve the condensation effect of formaldehyde mixed gas.

[0088] Finally, the present invention also provides a method for enhanced rapid cooling of a formaldehyde oxidizer tube-and-shell reactor, comprising the following steps:

[0089] S1. Pour cooling water into the cooling tank 1 from the inlet / outlet 11, so that the condensate water covers the condenser pipe 2 and is level with the top of the cooling tank 1.

[0090] S2. Pour cooling water into the cooling tank 1 from the inlet / outlet 11, so that the condensate water covers the condenser pipe 2 and is level with the top of the cooling tank 1.

[0091] S3. The output shaft of the drive motor drives the rotating shaft 332 to rotate. During the rotation of the rotating shaft 332, the traction rope 32 drives the scraping ring 31 to move downward. During the downward movement of the scraping ring 31, the water droplets attached to the inner wall of the condenser tube 2 can be scraped off. At this time, the elastic rope 333 is pulled up. After the rotating shaft 332 rotates a certain number of times, the traction rope 32 drives the scraping ring 31 to move to the bottom of the vertical tube without entering the inside of the curved section. At this time, the output shaft of the drive motor reverses to release the traction rope 32. The elastic rope 333 resets and drives the scraping ring 31 to reset, and at the same time, the traction rope 32 resets. Repeating the above actions can drive the scraping ring 31 to slide back and forth inside the vertical tube to scrape off the attached water droplets and form a water flow in the curved section.

[0092] S4. Water flows from the end of the U-shaped section near the condenser pipe 2 to the end of the U-shaped section away from the condenser pipe 2. The outflowing water flows into the transition pipe 27 after being discharged to the rubber pipe 26, and is finally collected and treated uniformly.

[0093] S5. Collect the formaldehyde mixture after cooling and dehydration treatment.

[0094] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A formaldehyde oxidizer tube-type enhanced rapid cooling device, comprising a cooling box (1), wherein the cooling box (1) is provided with an inlet pipe (12) and an outlet pipe (13), characterized in that, Also includes: A continuously curved condenser tube (2) that can reciprocate is installed inside the cooling box (1), and its two ends are slidably connected to the air inlet pipe (12) and the air outlet pipe (13), respectively. The scraping mechanism (3) installed inside the condenser tube (2) is used to scrape off water droplets adhering to the tube wall during the condensation process; The drainage system connected to the bent section of the condenser tube (2) is used to drain the scraped condensate and prevent gas from escaping; The scraping mechanism (3) includes: A scraping ring (31) is slidably disposed inside the condenser tube (2); The traction rope (32) is connected to the scraping ring (31); The drive assembly (33) includes a rotating shaft (332) driven by a motor, and the traction rope (32) is wound around the rotating shaft (332); The scraping ring (31) is also connected to an elastic reset member, which is used to drive the scraping ring (31) to reset when the traction rope (32) is released; A cam disk (24) is provided on the rotating shaft (332). The condenser tube (2) is connected to the reset spring rod (22) through the connecting plate (21). The cam disk (24) cooperates with the guide plate (23) fixed on the connecting plate (21) to drive the condenser tube (2) to reciprocate.

2. The formaldehyde oxidizer tube-type enhanced rapid cooling device according to claim 1, characterized in that, The reciprocating swaying of the condenser tube (2) is configured to shake off the water droplets attached to its inner wall by inertial force, forming a synergistic water removal mechanism with the scraping mechanism (3).

3. The formaldehyde oxidizer tube-type enhanced rapid cooling device according to claim 1, characterized in that, The drainage system includes: a drainage pipe (25) connected to the bend of the condenser (2) and configured to form a liquid seal; a rubber tube (26) connected to the drainage pipe (25); and a transition pipe (27) for collecting condensate.

4. The formaldehyde oxidizer tube-type enhanced rapid cooling device according to claim 1, characterized in that, The rotating shaft (332) is also equipped with fan blades (28) for stirring the cooling water in the cooling tank (1).

5. The formaldehyde oxidizer tube-type enhanced rapid cooling device according to claim 1, characterized in that, It also includes a cooling water circulation system, which includes: a cooling frame (4) containing a cooling medium; a water pump (42); and a circulation pipe connecting the cooling frame (4) and the cooling tank (1).

6. A method for rapid cooling of a formaldehyde oxidizer tube-and-shell assembly, employing a rapid cooling device for a formaldehyde oxidizer tube-and-shell assembly as described in any one of claims 1-5, characterized in that, Includes the following steps: S1. Pour cooling water into the cooling tank (1) until it submerges the condenser tube (2); S2. The formaldehyde mixture is passed into the condenser (2) for condensation treatment; S3, drive the scraping ring (31) to scrape the water droplets on the tube wall of the condenser tube (2) back and forth; S4. Drain and collect the condensate through the drainage system; S5. Collect the formaldehyde mixture after cooling and dehydration treatment.

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