High-efficiency heat exchange acrylamide polymerization kettle and operation method thereof

Abstract

The invention relates to the field of acrylamide polymerization, in particular to an efficient heat exchange acrylamide polymerization kettle and an operation method thereof.The efficient heat exchange acrylamide polymerization kettle comprises a hollow containing barrel, a reaction kettle used for containing acrylamide for polymerization reaction is arranged in the containing barrel, and a heat exchanger is jointly connected between the containing barrel and the reaction kettle; according to the present invention, the placing cylinder, the reaction kettle and the heat exchanger are integrated, such that the heat release in the acrylamide polymerization reaction can be effectively regulated and controlled, the equipment structure is simplified, the problem that the equipment needs to occupy the large site during the use process is substantially reduced, and the equipment cost is saved.

Description

Technical Field

[0001] The invention relates to the field of acrylamide polymerization, and in particular to a high-efficiency heat exchange acrylamide polymerization kettle and an operating method thereof. Background Art

[0002] Acrylamide is an organic compound raw material for producing polyacrylamide. Generally, acrylamide monomer, initiator and other additives are mixed in deionized water to form a reaction medium, and then a polymerization reaction is carried out under suitable temperature and pH conditions to form polyacrylamide. Since the polymerization reaction of acrylamide is an exothermic reaction, it will emit a large amount of heat during the polymerization process. If it is not discharged and regulated in time, the system temperature will rise. The traditional polymerization kettle used for acrylamide polymerization is inefficient during the heating or cooling process, and there are problems such as unstable reaction temperature control, low heat transfer efficiency and high energy consumption.

[0003] With the advancement of science and technology, technicians in related fields have also made a lot of optimizations on the polymerization kettle equipment used for acrylamide polymerization reaction. In order to make a more accurate comparison, for example, the external material cooling system in the polyacrylamide production disclosed in the Chinese patent with publication number CN217663254U includes a batching kettle, a heat exchanger and a polymerization kettle, etc. When in use, the raw materials prepared in the batching kettle are passed through an external multi-stage heat exchanger for cooling, and then driven into the polymerization kettle for polymerization. After the materials are cooled by the heat exchanger, they can continue to be connected to the batching kettle, and the materials in the batching kettle can be directly connected to the last stage of the heat exchanger. The whole system is used in combination, with fast heat exchange rate, high efficiency, high output and low cost.

[0004] However, when the above-mentioned existing equipment is used to polymerize acrylamide, the following problems still exist:

[0005] When the above equipment is in use, it is necessary to cool the raw materials in the batching kettle through an external multi-stage heat exchanger, and then inject them into the polymerization kettle for polymerization. During use, it is necessary to be equipped with at least one batching kettle, one heat exchanger and one polymerization kettle, which are externally connected to each other. When in use, it takes up a large site space. At the same time, multiple devices will increase the investment cost of acrylamide polymerization.

[0006] Therefore, based on the above-stated viewpoint, there is still room for optimization of the existing equipment for acrylamide polymerization. Summary of the invention

[0007] In order to solve the above problems, the present invention provides a high-efficiency heat exchange acrylamide polymerization kettle, including a placement cylinder with a hollow interior, a reactor for accommodating acrylamide polymerization reaction is arranged in the placement cylinder, and a heat exchanger is connected between the placement cylinder and the reactor.

[0008] The heat exchanger comprises:

[0009] The annular frame is connected in the placing cylinder and is connected to the reactor interval through the mounting ring plate, and a cooling cavity is formed between the placing cylinder and the annular frame.

[0010] The heat conducting plates are provided in multiple numbers and are circumferentially limited on the annular frame in a bent shape, and the two ends thereof are respectively penetrated in the reaction kettle and the cooling chamber to complete the heat conduction and heat dissipation treatment in the reaction kettle.

[0011] The storage bin is located at the upper end of the placement cylinder and is used to initially store the refrigerant.

[0012] Preferably, the heat conducting plate is hollow inside, and a connecting conduit is provided between the heat conducting plate and the containing chamber.

[0013] Preferably, a partition plate with a bent structure is also provided in the heat conduction plate, and the heat conduction plate is separated by the partition plate on both sides to form a refrigerant channel. The connecting duct is provided in a bent structure and its bent section extends into the refrigerant channel. The refrigerant channel on the heat conduction plate is connected to the cooling chamber.

[0014] Preferably, the upper limit sleeve on the connecting conduit is provided with a limiting sleeve located in the accommodating chamber, and the connecting conduit is also connected to a sealing block abutting against the limiting sleeve, and the bottom of the limiting sleeve is symmetrically provided with through holes.

[0015] Preferably, a plurality of guide tubes are circumferentially arranged between the reactor and the containing chamber, a driven sliding rod slidably connected to the containing chamber is passed through the guide tubes, a limit block and an adjusting cylinder are sleeved on the outer side of the driven sliding rod from top to bottom, and a driven connecting rod is commonly connected between the adjusting cylinder and the limit sleeve.

[0016] Preferably, the connecting conduit is connected to a connecting guide block which is attached to the inner wall of the connected limiting sleeve, a telescopic connecting tube is passed through the connecting guide block and the sealing block, and the telescopic connecting tube is staggered with the through hole.

[0017] Preferably, a guide slot is formed on the limiting sleeve, and the connecting guide block is connected to a guide sliding block inserted in the guide slot.

[0018] Preferably, an active rotating shaft is provided between the placing cylinder and the reaction kettle to limit the position of the placing cylinder and the reaction kettle, and the active rotating shaft is connected to a rotating frame limitedly located in the reaction kettle.

[0019] Preferably, a circulation pipe connected to the cooling chamber is passed through the placement tube.

[0020] In addition, the present invention also provides an operating method of a high-efficiency heat exchange acrylamide polymerization kettle, comprising the following steps:

[0021] S1: The acrylamide aqueous solution, initiator and other additives are mixed to form a reaction medium, and then injected into a reactor. The reaction medium itself undergoes an exothermic reaction, causing the temperature in the reactor to gradually increase, so as to quickly and completely start the polymerization reaction.

[0022] S2: After the polymerization reaction starts, a large amount of heat is released, indicating that the temperature in the reactor rises, and then it is transmitted to the heat transfer plate. At the same time, when the temperature in the reactor rises to a predetermined temperature range, the pressure in the reactor also rises. Through the different pressure differences inside and outside the reactor after the polymerization reaction, the refrigerant in the containing chamber is driven through the connecting pipe to the heat transfer plate and the cooling chamber, so as to form a treatment effect of heat conduction and heat dissipation on the heat transfer plate.

[0023] S3: After the refrigerant is introduced into the heat transfer plate, it flows along the refrigerant channel in the heat transfer plate to improve the effect of heat exchange rate through the heat transfer plate. At the same time, after passing through the heat transfer plate, the refrigerant remains in the cooling cavity to further conduct heat and dissipate heat for the heat transfer plate.

[0024] In summary, the present application includes at least one of the following beneficial technical effects:

[0025] 1. The present invention integrates the placement cylinder, the reactor and the heat exchanger together, which can effectively regulate the heat release in the acrylamide polymerization reaction, simplify the equipment structure, greatly reduce the problem of occupying a large area during the use of the equipment, and save equipment costs.

[0026] 2. The present invention drives the refrigerant into the serpentine refrigerant channel in the heat transfer plate, flows along the refrigerant channel and then falls into the cooling chamber to be temporarily stored. As the refrigerant is continuously input and accumulated in the cooling chamber, a section of the heat transfer plate away from the reactor is soaked, thereby improving the heat exchange rate and effectively increasing the utilization rate of the refrigerant. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0028] Figure 1 It is a structural schematic diagram of the present invention.

[0029] Figure 2 It is a schematic diagram of the cross-sectional structure of the placement tube of the present invention.

[0030] Figure 3 It is a schematic structural diagram of the heat exchanger of the present invention.

[0031] Figure 4 It is a structural schematic diagram of the heat conducting plate of the present invention.

[0032] Figure 5 The present invention Figure 4 A is an enlarged view of the middle image.

[0033] Figure 6 It is a structural schematic diagram of the partition plate of the present invention.

[0034] Figure 7 It is a structural schematic diagram of the guide tube of the present invention.

[0035] Figure 8 The present invention Figure 7 Enlarged view of B.

[0036] Fig. 9 It is a structural schematic diagram of the limiting sleeve of the present invention.

[0037] In the figure, 1. placement cylinder; 10. reaction kettle; 2. heat exchanger; 20. annular frame; 21. mounting ring plate; 210. cooling chamber; 22. heat conducting plate; 220. partition plate; 23. containing chamber; 24. connecting duct; 25. limiting sleeve; 250. sealing block; 251. through hole; 26. guide pipe; 260. driven slide rod; 261. limiting block; 262. adjusting cylinder; 263. driven connecting rod; 264. adjusting spring; 27. connecting guide block; 270. telescopic connecting pipe; 271. guide slide groove; 272. guide slide block; 28. driving shaft; 280. rotating frame; 3. circulation pipe. DETAILED DESCRIPTION

[0038] The following is combined with Figure 1 To Attachment Fig. 9 Embodiments of the present invention are described in detail.

[0039] The embodiment of the present application discloses a high-efficiency heat exchange acrylamide polymerization kettle and method, which explains that the present application is mainly used in the process of acrylamide polymerization reaction, and realizes timely regulation of the heat released in the acrylamide polymerization reaction in terms of technical effect, so as to avoid the continuous increase in temperature affecting the normal reaction; in particular, during the heat exchange treatment process, the efficiency of heat conduction and heat dissipation in the reactor during the polymerization reaction is effectively improved through the mutual cooperation between the active rotating shaft, the rotating frame and a plurality of heat conducting plates; and the present application also effectively increases the utilization rate of the refrigerant while improving the heat exchange rate through the cooperation between the set heat conducting plate and the cooling chamber.

[0040] Reference Figure 1 and Figure 2As shown, it includes a placement cylinder 1 with a hollow interior, a reactor 10 for accommodating acrylamide polymerization reaction is arranged in the placement cylinder 1, and a heat exchanger 2 is connected between the placement cylinder 1 and the reactor 10. When in use, the acrylamide raw material is accommodated by the integrated placement cylinder 1 and the reactor 10 for polymerization reaction, and then the heat released during the acrylamide polymerization reaction is conducted and dissipated by the heat exchanger 2 in the placement cylinder 1, which effectively saves equipment costs and timely conducts and regulates a large amount of heat emitted during the polymerization process, thereby avoiding the temperature increase of the overall system and affecting the normal polymerization reaction.

[0041] It should be noted that, usually during the acrylamide polymerization reaction, it is necessary to inject a certain amount of relatively stable gas such as nitrogen into the reactor 10 for impurity removal. Therefore, an end cover is detachably installed on the reactor 10, and a feeding pipe and a gas injection pipe are connected to the end cover so as to feed materials into the reactor 10 and inject gas to remove impurities and avoid affecting the polymerization reaction.

[0042] Reference Figure 2 and Figure 3 As shown, a heat exchanger 2 is used for conducting and dissipating heat emitted from the reactor 10; specifically, the heat exchanger 2 includes:

[0043] The annular frame 20 is connected in the placing cylinder 1 and is spaced apart from the reaction kettle 10 through the mounting ring plate 21 , and a cooling chamber 210 is formed between the placing cylinder 1 and the annular frame 20 .

[0044] The heat conducting plates 22 are provided in multiple numbers and are circumferentially limited on the annular frame 20 in a bent shape, and their two ends are respectively penetrated into the reactor 10 and the cooling chamber 210 to complete the heat conduction and heat dissipation treatment in the reactor 10. The heat conducting plates 22 are preferably made of materials with high thermal conductivity efficiency, such as copper, aluminum, etc.

[0045] The containing chamber 23 is limited to the upper end of the placing cylinder 1 and is used for initially containing the refrigerant.

[0046] It should be noted that, generally, in the early stage of acrylamide polymerization, it may be necessary to increase the temperature to quickly start the polymerization reaction, while in the middle and late stages of the reaction, it is necessary to cool down to control the reaction rate and heat release. Therefore, when the temperature needs to be increased in the early stage of the reaction, the refrigerant is first introduced into the containing bin 23 for preliminary storage. At this time, an aqueous solution of acrylamide, an initiator and other additives are added into the reactor 10 and mixed in deionized water to form a reaction medium, and a preliminary reaction is carried out. The overall temperature in the reactor 10 is gradually increased through the exothermic reaction of the reaction medium itself in the early stage of the polymerization reaction, so as to quickly start the overall reaction.

[0047] After the temperature in the reactor 10 rises to a relatively high temperature, the refrigerant in the containing chamber 23 is guided into the cooling chamber 210 to quickly conduct heat and dissipate heat to the heat conducting plate 22. After one section of the heat conducting plate 22 in the reactor 10 is heated, the heat is evenly transferred to the entire heat conducting plate 22, so that the temperature of the other section of the heat conducting plate 22 in the cooling chamber 210 gradually rises. At this time, the section of the heat conducting plate 22 in the cooling chamber 210 is affected by the temperature transfer of the refrigerant in the cooling chamber 210, and the entire heat conducting plate 22 is cooled, so that a large amount of heat generated by the polymerization reaction in the reactor 10 is transferred to the cooling chamber 210 for cooling, thereby achieving the effect of regulating the heat in the reactor 10.

[0048] Further, refer to Figures 2 to 6 As shown, in order to improve the efficiency of heat transfer between the reactor 10, the heat conducting plate 22 and the cooling chamber 210, the heat conducting plate 22 is hollow inside and a section thereof located in the cooling chamber 210 is connected to the cooling chamber 210, and a connecting conduit 24 is connected between the heat conducting plate 22 and the containing chamber 23. When in use, the refrigerant stored in the containing chamber 23 is driven to be first injected into the heat conducting plate 22 through the connecting conduit 24, and after the heat conducting plate 22 is filled with the refrigerant of lower temperature, the refrigerant overflows into the cooling chamber 210 through the heat conducting plate 22, and then fills the cooling chamber 210 to immerse one section of the heat conducting plate 22 located in the cooling chamber 210 therein, so as to improve the effect of heat dissipation and heat conduction treatment of the heat conducting plate 22, and at the same time, the utilization efficiency of the refrigerant is effectively improved through the accumulation of the refrigerant in the cooling chamber 210.

[0049] Furthermore, refer to Figures 4 to 6 As shown, a partition plate 220 with a bent structure is also provided in the heat conducting plate 22, and the bent section of the partition plate 220 is bent toward the direction close to the reactor 10, so that the interior of the heat conducting plate 22 is divided by the partition plate 220 to form a serpentine connected refrigerant channel, which guides the direction of the refrigerant introduced into the heat conducting plate 22. The serpentine connected refrigerant channel in the heat conducting plate 22 is located at a section of the heat conducting plate 22 limited in the reactor 10, which effectively increases the retention time of the refrigerant injected into the heat conducting plate 22, thereby improving the heat conduction and heat dissipation efficiency of the heat dissipation plate. The connecting conduit 24 is arranged in a bent structure and its bent section extends into the refrigerant channel. The refrigerant channel on the heat conducting plate 22 is connected to the cooling chamber 210.

[0050] Reference Figures 4 to 8 As shown, the limiting sleeve 25 located in the receiving bin 23 is provided on the connecting conduit 24, and a sealing block 250 abutting against the limiting sleeve 25 is also connected to the connecting conduit 24, and through holes 251 are symmetrically opened at the bottom of the limiting sleeve 25. When in use, the limiting sleeve 25 is sealed by the sealing block 250 to prevent the refrigerant in the receiving bin 23 from entering the connecting conduit 24 through the through hole 251.

[0051] Further, refer to Figure 7 As shown, in order to regulate the time of introducing the refrigerant in the containing chamber 23 into the heat conducting plate 22 and the cooling chamber 210, a plurality of guide tubes 26 are circumferentially arranged between the reactor 10 and the containing chamber 23, and a driven slide rod 260 slidably connected to the containing chamber 23 is passed through the guide tube 26, and a limit block 261 and an adjusting cylinder 262 are sleeved on the outer side of the driven slide rod 260 from top to bottom, and the adjusting cylinder 262 is slidably connected to the driven slide rod 260, and the adjusting cylinder 262 is hollow inside and has an open end, and a driven connecting rod 263 is commonly connected between the adjusting cylinder 262 and the limit sleeve 25, and an adjusting spring 264 is also connected between the driven slide rod 260 and the containing chamber 23 to drive the driven slide rod 260 to reset after sliding.

[0052] In the initial state, the limit block 261 on the same driven slide rod 260 abuts against the upper end of the adjusting cylinder 262, so that the adjusting cylinder 262 is located at the lower side of the containing chamber 23. After the containing chamber 23 is filled with liquid refrigerant, the adjusting cylinder 262 will continuously float to the upper layer of the refrigerant as the refrigerant is injected. At this time, due to the limitation of the corresponding limit block 261, the adjusting cylinder 262 is limited to the lower side of the containing chamber 23, and the adjusting cylinder 262 has a tendency to always float upward to the upper layer of the refrigerant.

[0053] During use, after the polymerization reaction in the reactor 10 is carried out for a period of time and the liquid refrigerant is injected into the containing chamber 23, the heat released by the reaction in the reactor 10 is large, causing the reactor 10 to heat up beyond the predetermined temperature range. As the temperature in the reactor 10 rises, the overall pressure inside the reactor 10 will also rise with the temperature rise, making the air pressure in the reactor 10 higher than the external air pressure. At this time, due to the pressure difference between the upper and lower sides of the guide tube 26, the driven slide rod 260 and the limit block 261 at the guide tube 26 are pushed upward as a whole by the higher pressure in the reactor 10, and the connected adjustment spring 26 is driven. 4 is compressed by force, and the limit block 261 moves up to release the limit on the conflicting adjustment cylinder 262. At this time, the adjustment cylinder 262 moves up driven by the buoyancy of the refrigerant in the accommodating chamber 23. The upward movement of the adjustment cylinder 262 drives the connected driven connecting rod 263 and the limit sleeve 25, so that the refrigerant in the accommodating chamber 23 enters the connecting conduit 24, completing the effect of heat conduction and heat dissipation treatment of the heat conducting plate 22; after the heat dissipation adjustment in the reactor 10 is completed, that is, when the pressure difference between the reactor 10 and the outside is the same, at this time, under the reset drive of the adjustment, the driven sliding rod 260 connected thereto is driven to move down and reset.

[0054] Reference Figures 7 to 9As shown, the connecting conduit 24 is connected with a connecting guide block 27 which is attached to the inner wall of the connected limiting sleeve 25, and a telescopic connecting pipe 270 is provided between the connecting guide block 27 and the sealing block 250, and the telescopic connecting pipe 270 is staggered with the through hole 251. After the limiting sleeve 25 is driven to move upward, a relative position slip is formed between the limiting sleeve 25 and the corresponding connecting conduit 24, the connecting guide block 27 and the telescopic connecting pipe 270, and the moving upward of the limiting sleeve 25 drives the through hole 251 thereon to move upward synchronously, until the telescopic connecting pipe 270 passes through the through hole 251, at which time, under the action of the external atmospheric pressure, the liquid refrigerant in the containing chamber 23 is driven to enter the connecting conduit 24 and the heat conducting plate 22 through the telescopic connecting pipe 270.

[0055] Further, refer to Figures 7 to 9 As shown, in order to drive the telescopic connecting tube 270 to correspond to the position of the through hole 251, a guide slot 271 is formed on the limiting sleeve 25, and a guide slider 272 inserted in the guide slot 271 is connected to the connecting guide block 27. When in use, after the limiting sleeve 25 and the guide slot 271 are driven to move upward, the guide slider 272 drives the connected connecting guide block 27, the telescopic connecting tube 270 and the sealing block 250 to deflect along the guide slot 271, so that the telescopic connecting tube 270 rotates to correspond to the through hole 251 on the limiting sleeve 25, and then passes through the limiting sleeve 25 as the limiting sleeve 25 moves upward, so that the connecting conduit 24 is connected to the containing chamber 23, and then the refrigerant in the containing chamber 23 is introduced into the heat conducting plate 22.

[0056] Reference Figure 1 and Figure 2 As shown, a driving shaft 28 is provided between the placing cylinder 1 and the reactor 10, and a rotating frame 280 limitedly located in the reactor 10 is connected to the driving shaft 28. The driving shaft 28 is driven to rotate by the existing motor technology, and the rotating frame 280 is driven to rotate in the reactor 10 by the rotation of the driving shaft 28. The aqueous solution in the reactor 10 is shifted by the rotation of the rotating frame 280, so as to achieve the effect of accelerating the polymerization efficiency of acrylamide. At the same time, the temperature in the reactor 10 is made more uniform by the displacement of the aqueous solution, so as to achieve the effect of promoting its thermal conductivity efficiency.

[0057] Reference Figure 1 and Figure 2 As shown, the placement tube 1 is provided with a circulation pipe 3 connected to the cooling chamber 210. The circulation pipe 3 is connected to an external device so as to extract the excessive refrigerant in the cooling chamber 210 for recycling, thereby improving the utilization rate of the refrigerant.

[0058] In addition, the present invention also provides an operating method of a high-efficiency heat exchange acrylamide polymerization kettle, comprising the following steps:

[0059] S1: The acrylamide aqueous solution, initiator and other additives are mixed to form a reaction medium, and injected into the reactor 10. The reaction medium itself undergoes an exothermic reaction, causing the temperature in the reactor 10 to gradually increase, so as to quickly and completely start the polymerization reaction.

[0060] S2: After the polymerization reaction starts, a large amount of heat is released by itself, indicating that the temperature in the reactor 10 rises, and then is transmitted to the heat transfer plate 22. At the same time, when the temperature in the reactor 10 rises to a predetermined temperature range, the pressure in the reactor 10 also rises. Through the different pressure differences inside and outside the reactor 10 after the polymerization reaction, the refrigerant in the containing chamber 23 is driven to be guided to the heat transfer plate 22 and the cooling chamber 210 through the connecting conduit 24, so as to form a treatment effect of heat conduction and heat dissipation of the heat transfer plate 22.

[0061] S3: After the refrigerant is introduced into the heat conducting plate 22, it flows along the refrigerant channel in the heat conducting plate 22 to improve the heat exchange rate through the heat conducting plate 22. At the same time, after the refrigerant passes through the heat conducting plate 22, it remains in the cooling cavity 210 to further conduct heat and dissipate heat for the heat conducting plate 22.

[0062] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered as exemplary and non-restrictive in all respects.

[0063] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A high-efficiency heat exchange acrylamide polymerization kettle, comprising a placement cylinder (1) with a hollow interior, characterized in that: The placement cylinder (1) is provided with a reaction kettle (10) for accommodating acrylamide polymerization reaction, and a heat exchanger (2) is connected between the placement cylinder (1) and the reaction kettle (10), wherein: The heat exchanger (2) comprises: An annular frame (20) is connected inside the placement cylinder (1) and is spaced apart from the reaction kettle (10) by means of a mounting ring plate (21), and a cooling chamber (210) is formed between the placement cylinder (1) and the annular frame (20); The heat conducting plates (22) are provided in plurality and are circumferentially limited on the annular frame (20) in a bent shape, and the two ends of the heat conducting plates (22) are respectively inserted into the reaction kettle (10) and the cooling chamber (210) to complete heat conduction and heat dissipation treatment in the reaction kettle (10); The containing chamber (23) is located at the upper end of the placing cylinder (1) and is used for initially containing the refrigerant.

2. A high-efficiency heat exchange acrylamide polymerization kettle according to claim 1, characterized in that: The heat conducting plate (22) is hollow inside, and a connecting conduit (24) is provided between the heat conducting plate (22) and the containing chamber (23).

3. The high-efficiency heat exchange acrylamide polymerization kettle according to claim 1, characterized in that: A partition plate (220) with a bent structure is also provided in the heat conducting plate (22), and the heat conducting plate (22) is divided by the partition plate (220) on both sides to form a refrigerant channel. The connecting pipe (24) is provided in a bent structure and its bent section extends into the refrigerant channel. The refrigerant channel on the heat conducting plate (22) is connected to the cooling chamber (210).

4. The high-efficiency heat exchange acrylamide polymerization kettle according to claim 2, characterized in that: The upper limit sleeve of the connecting conduit (24) is provided with a limit sleeve (25) located in the accommodating chamber (23), and the connecting conduit (24) is also connected to a sealing block (250) abutting against the limit sleeve (25), and the bottom of the limit sleeve (25) is symmetrically provided with through holes (251).

5. A high-efficiency heat exchange acrylamide polymerization kettle according to claim 4, characterized in that: A plurality of guide tubes (26) are circumferentially arranged between the reactor (10) and the containing chamber (23), a driven slide rod (260) is inserted into the guide tube (26) and is slidably connected to the containing chamber (23), a limit block (261) and an adjustment cylinder (262) are sleeved on the outer side of the driven slide rod (260) from top to bottom, and a driven connecting rod (263) is connected between the adjustment cylinder (262) and the limit sleeve (25).

6. The high-efficiency heat exchange acrylamide polymerization kettle according to claim 4, characterized in that: The connecting conduit (24) is connected to a connecting guide block (27) which is attached to the inner wall of the connected limiting sleeve (25); a telescopic connecting tube (270) is provided between the connecting guide block (27) and the sealing block (250); and the telescopic connecting tube (270) is staggered with the through hole (251).

7. A high-efficiency heat exchange acrylamide polymerization kettle according to claim 6, characterized in that: The limiting sleeve (25) is formed with a guide slot (271), and the connecting guide block (27) is connected with a guide sliding block (272) inserted into the guide slot (271).

8. The high-efficiency heat exchange acrylamide polymerization kettle according to claim 1, characterized in that: An active rotating shaft (28) is provided between the placing cylinder (1) and the reaction kettle (10) to limit the position of the placing cylinder (1) and the reaction kettle (10). The active rotating shaft (28) is connected to a rotating frame (280) limitedly located in the reaction kettle (10).

9. The high-efficiency heat exchange acrylamide polymerization kettle according to claim 1, characterized in that: The placement tube (1) is provided with a circulation pipe (3) connected to the cooling chamber (210).

10. An operating method of a high-efficiency heat exchange acrylamide polymerization kettle, using a high-efficiency heat exchange acrylamide polymerization kettle as claimed in any one of claims 1 to 9, characterized in that: The operation method includes the following steps: S1: mixing an aqueous solution of acrylamide, an initiator and other additives to form a reaction medium, and injecting the mixture into a reactor (10); the reaction medium undergoes an exothermic reaction, causing the temperature in the reactor (10) to gradually increase, thereby quickly and completely starting the polymerization reaction; S2: After the polymerization reaction starts, a large amount of heat is released, indicating that the temperature in the reactor (10) rises, and then is transmitted to the heat transfer plate (22). At the same time, when the temperature in the reactor (10) rises to a predetermined temperature range, the pressure in the reactor (10) also rises. Through the different pressure differences inside and outside the reactor (10) after the polymerization reaction, the refrigerant in the containing chamber (23) is driven to be guided to the heat transfer plate (22) and the cooling chamber (210) through the connecting conduit (24), so as to form a treatment effect of heat conduction and heat dissipation of the heat transfer plate (22); S3: After the refrigerant is introduced into the heat conducting plate (22), it flows along the refrigerant channel in the heat conducting plate (22) to improve the effect of the heat exchange rate through the heat conducting plate (22). At the same time, after the refrigerant passes through the heat conducting plate (22), it remains in the cooling cavity (210) to further conduct heat and dissipate heat for the heat conducting plate (22).

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