2.3-dibromopropionic acid corrosion-resistant reaction kettle

Abstract

The utility model relates to the technical field of reaction kettles, in particular to a 2.3-dibromopropionic acid corrosion-resistant reaction kettle, which can quickly lift 2.3-dibromopropionic acid at the bottom of the reaction kettle to the top of the reaction kettle to realize a complicated stirring effect and improve the reaction efficiency. Comprising a kettle body, a liquid inlet pipe and a liquid outlet pipe, the reaction kettle further comprises an inner pipe, a plurality of lower pipes, a plurality of upper pipes, an outer pipe, a plurality of stirring rods and a driving assembly, the inner pipe is vertically and rotatably installed in the reaction cavity of the kettle body, the lower pipes are installed at the lower end of the inner pipe, the upper pipes are installed at the upper end of the inner pipe, the interiors of the inner pipe, the lower pipes and the upper pipes are communicated, liquid inlet holes are formed in the liquid facing faces of the side walls of the lower pipes, and liquid outlet holes are formed in the liquid facing faces of the side walls of the outer pipes. Liquid outlet holes are formed in the multiple upper pipes, the length of the multiple upper pipes is larger than that of the multiple lower pipes, the outer pipe rotationally sleeves the outer wall of the inner pipe, multiple stirring rods are installed on the outer walls of the multiple outer pipes, and the driving assembly is installed in the reaction cavity of the kettle body and drives the inner pipe and the outer pipes to rotate reversely.

Description

Technical Field

[0001] The utility model relates to the technical field of reactors, in particular to a 2.3-dibromopropionic acid corrosion-resistant reactor. Background Art

[0002] 2.3-Dibromopropionic acid is mixed and prepared in a reactor. Various corrosion-resistant reactors are disclosed in the prior art. For example, a Chinese utility model patent with publication number CN218250247U proposes an enamel reactor for synthesizing 2-bromopropionic acid. The reactor first places the 2-bromopropionic acid to be synthesized and processed into an interior of a tank through a feed pipe, and then drives a steel pipe to rotate through a water supply device. After the steel pipe rotates, it drives multiple groups of first stirring blades to rotate, so that the multiple groups of first stirring blades synthesize and stir the 2-bromopropionic acid in the tank. When the 2-bromopropionic acid in the tank is heated, the 2-bromopropionic acid in the tank is heated and ... After the propionic acid synthesis process is completed, the discharge valve is opened to discharge the 2-bromopropionic acid in the tank body. Then, water is transported to the inside of the steel pipe through the water supply device. The water entering the steel pipe is sprayed outward through multiple groups of first nozzles. At the same time, the multiple groups of first nozzles are driven to rotate through the steel pipe, so that the multiple groups of first nozzles rotate and spray water to flush the inner wall of the tank body, reducing the flushing dead angle in the tank body. At the same time, the water supply device transports water to multiple groups of straight pipes, so that multiple groups of second nozzles flush the steel pipe, multiple groups of first stirring blades and the inner wall of the tank body, thereby improving the cleaning effect of flushing inside the tank body.

[0003] However, the stirring blade mechanism of the above-mentioned reactor has a relatively simple stirring effect on 2,3-dibromopropionic acid, and cannot quickly lift the 2,3-dibromopropionic acid at the bottom of the reactor to the top of the reactor, and cannot achieve a more complex mixing and stirring effect, resulting in a low reaction efficiency of 2,3-dibromopropionic acid. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a 2.3-dibromopropionic acid corrosion-resistant reactor that can quickly lift 2.3-dibromopropionic acid at the bottom of the reactor to the top of the reactor, achieve a complex stirring effect, and improve reaction efficiency.

[0005] The liquid discharging opening that stirs cage connects with the said quenching of the boiling hot water of boiling hot water, and the liquid discharging opening that stirs cage connects with the said quenching of the boiling hot water of boiling hot water. In the reaction chamber, the drive assembly drives the inner tube and the outer tube to rotate in opposite directions, so that the outer tube drives the multiple stirring rods to stir the 2,3-dibromopropionic acid raw material clockwise, and at the same time, the inner tube drives the multiple lower tubes and the multiple upper tubes to rotate counterclockwise. Since the length of the multiple upper tubes is greater than that of the multiple lower tubes, the pressure at the multiple liquid outlets of the multiple upper tubes is lower than the pressure at the multiple liquid inlet holes of the multiple lower tubes, so that the 2,3-dibromopropionic acid raw material located at the bottom of the reaction chamber of the kettle body enters the multiple lower tubes and the inner tube through the multiple liquid inlet holes and is discharged to the upper part of the reaction chamber of the kettle body through the liquid outlet holes of the multiple upper tubes. In addition, the multiple lower tubes and the 2.3-dibromopropionic acid raw material rotate in opposite directions, so that the 2.3-dibromopropionic acid raw material enters the multiple lower tubes more efficiently, thereby achieving rapid lifting of the 2.3-dibromopropionic acid at the bottom of the reactor to the top of the reactor. Combined with the stirring action of the multiple stirring rods, a more complex stirring effect is achieved, thereby improving the reaction efficiency of 2.3-dibromopropionic acid.

[0006] Preferably, the driving assembly includes a motor, bevel gear one, bevel gear two and bevel gear three. The motor is installed in the reaction chamber of the kettle body, the output shaft of the motor is concentrically installed with bevel gear one, bevel gear two is concentrically installed on the outer wall of the inner tube, and bevel gear three is concentrically installed on the outer wall of the outer tube. Bevel gear one is located between bevel gear two and bevel gear three, and bevel gear one is meshed with bevel gear two and bevel gear three; the motor drives bevel gear one to rotate, and bevel gear one simultaneously meshes with bevel gear two and bevel gear three, so that bevel gear two drives the inner tube to rotate, and bevel gear three drives the outer tube to rotate, and the rotation directions of the inner tube and the outer tube are opposite. The technology is mature and practical.

[0007] Preferably, it also includes a stainless steel shell and an end cover. The stainless steel shell is installed in the reaction chamber of the kettle body, the motor is installed inside the stainless steel shell, the outer end of the stainless steel shell extends out of the outside of the kettle body, and the end cover is installed on the outer port of the stainless steel shell; the stainless steel shell covers the motor to reduce corrosion of the motor, and the end cover can be opened to inspect and repair the motor, thereby improving the reliability of the device.

[0008] Preferably, it also includes a rotary joint and a water pipe joint, the upper end of the inner tube extends out of the top of the kettle body, the rotary joint is installed on the upper end of the inner tube, the output end of the rotary joint is connected to the inner tube, and the input end of the rotary joint is installed with the water pipe joint; when the reaction of 2,3-dibromopropionic acid is completed and discharged through the liquid outlet pipe, the water pipe joint is connected to the external cleaning water pipe, and the cleaning water is input into the inner tube through the water pipe joint and the rotary joint, and is sprayed toward the inner wall of the kettle body through the liquid outlet holes of the multiple upper tubes and the liquid inlet holes of the multiple lower tubes, thereby flushing the inner wall of the kettle body, the outer tube, and the multiple stirring rods, thereby improving the cleanliness of the inside of the kettle body.

[0009] Preferably, it also includes multiple scrapers and multiple guide plates, multiple scrapers are installed on the outer ends of the multiple stirring rods, the multiple scrapers scrape the inner wall of the kettle body, and the multiple guide plates are obliquely installed on the multiple stirring rods located below, and the multiple guide plates guide the 2.3-dibromopropionic acid inward; when the outer tube and the multiple stirring rods rotate, the multiple stirring rods drive the multiple scrapers to scrape the inner wall of the kettle body to prevent the 2.3-dibromopropionic acid raw material from adhering to the inner wall of the kettle body. At the same time, the multiple stirring rods drive the multiple guide plates to rotate, so that the multiple guide plates guide the 2.3-dibromopropionic acid raw material to the multiple lower tubes, so that the 2.3-dibromopropionic acid raw material enters the multiple lower tubes more efficiently, and the cleaning water also cleans the bottom wall of the kettle body, thereby improving practicality.

[0010] Preferably, the method further comprises a sampling tube, a reflux tube, an upper valve and a lower valve, wherein the sampling tube is mounted on the side wall of the kettle body, the sampling tube is connected to the reaction chamber of the kettle body, the sampling tube is mounted with a valve, the lower portion of the reflux tube is connected to the upper portion of the side wall of the kettle body, a funnel is arranged at the upper end of the reflux tube, the upper valve is mounted at the lower portion of the reflux tube, and the lower valve is mounted at the upper portion of the reflux tube; the valve is opened to allow the 2.3-dibromopropionic acid in the reaction chamber of the kettle body to be discharged through the sampling tube for sampling, a sufficient amount of sample is sent for testing, and excess 2.3-dibromopropionic acid is poured into the funnel of the reflux tube, the lower valve is opened to allow the 2.3-dibromopropionic acid to enter the middle portion of the reflux tube, the lower valve is closed, and the upper valve is opened to allow the 2.3-dibromopropionic acid to reflux into the reaction chamber of the kettle body through the lower portion of the reflux tube, thereby reducing sampling waste.

[0011] Compared with the prior art, the beneficial effects of the present invention are: the 2,3-dibromopropionic acid at the bottom of the reactor is quickly lifted to the top of the reactor, and the stirring effect of multiple stirring rods is combined to achieve a more complex stirring effect, thereby improving the reaction efficiency of 2,3-dibromopropionic acid. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural diagram of the utility model;

[0013] Figure 2 This is a front sectional structural diagram of the present utility model;

[0014] Figure 3 This is an axonometric structural diagram of the present utility model;

[0015] Figure 4 It is a structural diagram of the inner tube, lower tube, upper tube, outer tube, stirring rod and drive assembly.

[0016] Markings in the accompanying drawings: 1. kettle body; 2. liquid inlet pipe; 3. liquid outlet pipe; 4. inner pipe; 5. lower pipe; 6. upper pipe; 7. outer pipe; 8. stirring rod; 9. motor; 10. bevel gear one; 11. bevel gear two; 12. bevel gear three; 13. stainless steel shell; 14. end cover; 15. rotary joint; 16. water pipe joint; 17. scraper; 18. guide plate; 19. sampling tube; 20. reflux pipe; 21. upper valve; 22. lower valve. DETAILED DESCRIPTION

[0017] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be provided below with reference to the accompanying drawings. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present invention.

[0018] Example 1

[0019] like Figures 1 to 4As shown, a 2.3-dibromopropionic acid corrosion-resistant reactor comprises a reactor body 1, a liquid inlet pipe 2 and a liquid outlet pipe 3. A reaction chamber is arranged inside the reactor body 1, the liquid inlet pipe 2 is installed at the upper end of the reactor body 1, and the liquid outlet pipe 3 is installed at the lower end of the reactor body 1, and the liquid inlet pipe 2 and the liquid outlet pipe 3 are connected with the reaction chamber; it also includes an inner tube 4, multiple lower tubes 5, multiple upper tubes 6, an outer tube 7, multiple stirring rods 8 and a driving assembly. The inner tube 4 is vertically rotatably installed in the reaction chamber of the reactor body 1, multiple lower tubes 5 are installed at the lower end of the inner tube 4, and multiple upper tubes 6 are installed at the upper end of the inner tube 4. The inner tube 4, multiple lower tubes 5 and multiple upper tubes 6 are internally connected, liquid inlet holes are provided on the liquid-facing surfaces of the side walls of the multiple lower tubes 5, and liquid outlet holes are provided on the multiple upper tubes 6. The length of the multiple upper tubes 6 is greater than that of the multiple lower tubes 5. The outer tube 7 is rotatably sleeved on the outer wall of the inner tube 4, and multiple stirring rods are installed on the outer wall of the multiple outer tubes 7. A stirring rod 8 and a driving assembly are installed in the reaction chamber of the kettle body 1, and the driving assembly drives the inner tube 4 and the outer tube 7 to rotate in opposite directions; the driving assembly includes a motor 9, a bevel gear 10, a bevel gear 2 11 and a bevel gear 3 12, the motor 9 is installed in the reaction chamber of the kettle body 1, the output shaft of the motor 9 is concentrically mounted with the bevel gear 10, the bevel gear 2 11 is concentrically mounted on the outer wall of the inner tube 4, the bevel gear 3 12 is concentrically mounted on the outer wall of the outer tube 7, the bevel gear 10 is located between the bevel gear 2 11 and the bevel gear 3 12, and the bevel gear 10 is meshed with the bevel gear 2 11 and the bevel gear 3 12; it also includes a stainless steel shell 13 and an end cover 14, the stainless steel shell 13 is installed in the reaction chamber of the kettle body 1, the motor 9 is installed inside the stainless steel shell 13, the outer end of the stainless steel shell 13 extends out of the outside of the kettle body 1, and the end cover 14 is installed on the outer port of the stainless steel shell 13.

[0020] During operation, the 2.3-dibromopropionic acid raw material is added to the reaction chamber of the kettle body 1 through the liquid inlet pipe 2. The stainless steel shell 13 covers the motor 9 to reduce the corrosion of the motor 9. The end cover 14 can be opened to repair the motor 9. The motor 9 drives the bevel gear 1 10 to rotate. The bevel gear 1 10 simultaneously engages the bevel gear 2 11 and the bevel gear 3 12, so that the bevel gear 2 11 drives the inner tube 4 to rotate, and the bevel gear 3 12 drives the outer tube 7 to rotate. The inner tube 4 and the outer tube 7 rotate in opposite directions, so that the outer tube 7 drives the multiple stirring rods 8 to stir the 2.3-dibromopropionic acid raw material clockwise. At the same time, the inner tube 4 drives the multiple lower tubes 5 and the multiple upper tubes 6 to rotate counterclockwise. Since the length of the multiple upper tubes 6 is greater than that of the multiple lower tubes 5 , so that the pressure at the multiple liquid outlet holes of the multiple upper tubes 6 is lower than the pressure at the multiple liquid inlet holes of the multiple lower tubes 5, so that the 2.3-dibromopropionic acid raw material located at the bottom of the reaction chamber of the kettle body 1 enters the multiple lower tubes 5 and the inner tube 4 through the multiple liquid inlet holes and is discharged to the upper part of the reaction chamber of the kettle body 1 through the liquid outlet holes of the multiple upper tubes 6. In addition, the rotation directions of the multiple lower tubes 5 and the 2.3-dibromopropionic acid raw material are opposite, so that the efficiency of the 2.3-dibromopropionic acid raw material entering the multiple lower tubes 5 is higher, thereby achieving rapid lifting of the 2.3-dibromopropionic acid at the bottom of the reactor to the top of the reactor. Combined with the stirring action of the multiple stirring rods 8, a more complex stirring effect is achieved, thereby improving the reaction efficiency of 2.3-dibromopropionic acid.

[0021] Example 2

[0022] like Figure 1 、 Figure 2 and Figure 4 As shown, on the basis of Example 1, it further includes a rotary joint 15 and a water pipe joint 16, the upper end of the inner tube 4 extends out of the top of the kettle body 1, the rotary joint 15 is installed on the upper end of the inner tube 4, the output end of the rotary joint 15 is connected to the inner tube 4, and the input end of the rotary joint 15 is installed with the water pipe joint 16; it also includes a plurality of scrapers 17 and a plurality of guide plates 18, the outer ends of the plurality of stirring rods 8 are installed with a plurality of scrapers 17, the plurality of scrapers 17 scrape the inner wall of the kettle body 1, and the plurality of guide plates 18 are obliquely installed on the plurality of stirring rods 8 located below, and the plurality of guide plates 18 guide 2.3-dibromopropionic acid to the inside.

[0023] After the reaction of 2,3-dibromopropionic acid is completed and discharged through the liquid outlet pipe 3, the water pipe joint 16 is connected to the external cleaning water pipe, and the cleaning water is input into the inner tube 4 through the water pipe joint 16 and the rotary joint 15, and is sprayed toward the inner wall of the kettle body 1 through the liquid outlet holes of the multiple upper tubes 6 and the liquid inlet holes of the multiple lower tubes 5, thereby flushing the inner wall of the kettle body 1 as well as the outer tube 7 and the multiple stirring rods 8, thereby improving the cleanliness of the interior of the kettle body 1. When the outer tube 7 and the multiple stirring rods 8 rotate, the multiple stirring rods 8 drive the multiple scrapers 17 to scrape the inner wall of the kettle body 1 to prevent the 2,3-dibromopropionic acid raw material from adhering to the inner wall of the kettle body 1. At the same time, the multiple stirring rods 8 drive the multiple guide plates 18 to rotate, so that the multiple guide plates 18 guide the 2.3-dibromopropionic acid raw material and the cleaning water to the multiple lower tubes 5, so that the cleaning water cleans the bottom wall of the kettle body 1.

[0024] Example 3

[0025] like Figures 1 to 4 As shown, on the basis of Example 1, it also includes a sampling tube 19, a reflux pipe 20, an upper valve 21 and a lower valve 22. The sampling tube 19 is installed on the side wall of the kettle body 1, and the sampling tube 19 is connected to the reaction chamber of the kettle body 1. The sampling tube 19 is installed with a valve. The lower part of the reflux pipe 20 is connected to the upper part of the side wall of the kettle body 1. A funnel is set at the upper end of the reflux pipe 20. The upper valve 21 is installed at the lower part of the reflux pipe 20, and the lower valve 22 is installed at the upper part of the reflux pipe 20.

[0026] Open the valve to allow the 2.3-dibromopropionic acid in the reaction chamber of the kettle body 1 to be discharged through the sampling tube 19 for sampling, and send a sufficient amount of sample for testing. Pour the excess 2.3-dibromopropionic acid into the funnel of the reflux pipe 20, open the lower valve 22, allow the 2.3-dibromopropionic acid to enter the middle part of the reflux pipe 20, close the lower valve 22, and open the upper valve 21, so that the 2.3-dibromopropionic acid can flow back to the reaction chamber of the kettle body 1 through the lower part of the reflux pipe 20, thereby reducing sampling waste.

[0027] like Figures 1 to 4As shown, a corrosion-resistant reactor for 2.3-dibromopropionic acid of the utility model is provided. When it is working, the 2.3-dibromopropionic acid raw material is first added into the reaction chamber of the reactor body 1 through the liquid inlet pipe 2, and the motor 9 drives the inner tube 4 and the outer tube 7 to rotate in opposite directions, so that the outer tube 7 drives the multiple stirring rods 8 to stir the 2.3-dibromopropionic acid raw material clockwise, and at the same time, the inner tube 4 drives the multiple lower tubes 5 and the multiple upper tubes 6 to rotate counterclockwise, and then the 2.3-dibromopropionic acid raw material located at the bottom of the reaction chamber of the reactor body 1 enters the multiple lower tubes 5 and the inner tube 4 through the multiple liquid inlet holes and is discharged to the upper part of the reaction chamber of the reactor body 1 through the liquid outlet holes of the multiple upper tubes 6, so that the 2.3-dibromopropionic acid at the bottom of the reactor is quickly lifted to the top of the reactor, and the stirring effect of the multiple stirring rods 8 is combined to achieve a more complex stirring effect, thereby improving the reaction efficiency of 2.3-dibromopropionic acid. , then open the valve to allow the 2.3-dibromopropionic acid in the reaction chamber of the kettle body 1 to be discharged through the sampling tube 19 for sampling, and send a sufficient amount of sample for testing. The excess 2.3-dibromopropionic acid is poured into the funnel of the reflux pipe 20, and the lower valve 22 is opened to allow the 2.3-dibromopropionic acid to enter the middle part of the reflux pipe 20. The lower valve 22 is closed, and the upper valve 21 is opened to allow the 2.3-dibromopropionic acid to reflux into the reaction chamber of the kettle body 1 through the lower part of the reflux pipe 20. Finally, when the reaction of the 2.3-dibromopropionic acid is completed and discharged through the liquid outlet pipe 3, the water pipe joint 16 is connected to the external cleaning water pipe, and the cleaning water is input into the inner tube 4 through the water pipe joint 16 and the rotary joint 15, and is sprayed toward the inner wall of the kettle body 1 through the liquid outlet holes of the multiple upper tubes 6 and the liquid inlet holes of the multiple lower tubes 5, thereby washing the inner wall of the kettle body 1, the outer tube 7, and the multiple stirring rods 8.

[0028] The main functions achieved by this utility model are:

[0029] 1. It can quickly lift the 2,3-dibromopropionic acid at the bottom of the reactor to the top of the reactor, achieving a complex stirring effect and improving the reaction efficiency;

[0030] 2. It can clean the kettle body 1 and improve the cleanliness of the inside of the kettle body 1;

[0031] 3. Able to take samples and reduce sampling waste.

[0032] The utility model is a 2.3-dibromopropionic acid corrosion-resistant reactor, and its installation method, connection method or setting method are all common mechanical methods, and can be implemented as long as they can achieve its beneficial effects; the utility model is a 2.3-dibromopropionic acid corrosion-resistant reactor, and the reactor body 1, liquid inlet pipe 2, liquid outlet pipe 3, inner pipe 4, outer pipe 7, motor 9, bevel gear 10, bevel gear 2 11, bevel gear 3 12, stainless steel shell 13, rotary joint 15, scraper 17, sampling tube 19, reflux pipe 20, upper valve 21, and lower valve 22 are purchased on the market. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, and technical personnel in this field do not need to pay creative labor.

[0033] All technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are intended solely for the purpose of describing specific embodiments and are not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0034] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A 2,3-dibromopropionic acid corrosion-resistant reactor, comprising a reactor body (1), a liquid inlet pipe (2) and a liquid outlet pipe (3), wherein a reaction chamber is arranged inside the reactor body (1), the liquid inlet pipe (2) is installed at the upper end of the reactor body (1), and the liquid outlet pipe (3) is installed at the lower end of the reactor body (1), and the liquid inlet pipe (2) and the liquid outlet pipe (3) are connected to the reaction chamber; characterized in that The invention also comprises an inner tube (4), a plurality of lower tubes (5), a plurality of upper tubes (6), an outer tube (7), a plurality of stirring rods (8) and a driving assembly. The inner tube (4) is vertically rotatably mounted in the reaction chamber of the kettle body (1). The lower end of the inner tube (4) is mounted with the plurality of lower tubes (5), and the upper end of the inner tube (4) is mounted with the plurality of upper tubes (6). The inner tube (4), the plurality of lower tubes (5) and the plurality of upper tubes (6) are internally connected. Liquid inlet holes are provided on the liquid-facing surfaces of the side walls of the plurality of lower tubes (5), and liquid outlet holes are provided on the plurality of upper tubes (6). The length of the plurality of upper tubes (6) is greater than that of the plurality of lower tubes (5). The outer tube (7) is rotatably sleeved on the outer wall of the inner tube (4), and the outer walls of the plurality of outer tubes (7) are mounted with the plurality of stirring rods (8). The driving assembly is mounted in the reaction chamber of the kettle body (1), and the driving assembly drives the inner tube (4) and the outer tube (7) to rotate in opposite directions.

2. A 2,3-dibromopropionic acid corrosion-resistant reactor as claimed in claim 1, characterized in that: The driving assembly comprises a motor (9), a bevel gear 1 (10), a bevel gear 2 (11) and a bevel gear 3 (12). The motor (9) is installed in a reaction chamber of a kettle body (1). The output shaft of the motor (9) is coaxially installed with the bevel gear 1 (10). The bevel gear 2 (11) is coaxially installed on the outer wall of an inner tube (4). The bevel gear 3 (12) is coaxially installed on the outer wall of an outer tube (7). The bevel gear 1 (10) is located between the bevel gear 2 (11) and the bevel gear 3 (12). The bevel gear 1 (10) is meshed with the bevel gear 2 (11) and the bevel gear 3 (12).

3. A 2,3-dibromopropionic acid corrosion-resistant reactor as claimed in claim 2, characterized in that: The invention also comprises a stainless steel shell (13) and an end cover (14). The stainless steel shell (13) is installed in the reaction chamber of the kettle body (1). The motor (9) is installed inside the stainless steel shell (13). The outer end of the stainless steel shell (13) extends outside the kettle body (1). The end cover (14) is installed on the outer end of the stainless steel shell (13).

4. A 2,3-dibromopropionic acid corrosion-resistant reactor according to claim 1, characterized in that: The invention also includes a rotary joint (15) and a water pipe joint (16). The upper end of the inner tube (4) extends out of the top of the kettle body (1). The rotary joint (15) is installed on the upper end of the inner tube (4). The output end of the rotary joint (15) is connected to the inner tube (4). The input end of the rotary joint (15) is installed with the water pipe joint (16).

5. A 2,3-dibromopropionic acid corrosion-resistant reactor according to claim 1, characterized in that: The invention also includes a plurality of scrapers (17) and a plurality of guide plates (18). The plurality of scrapers (17) are installed at the outer ends of the plurality of stirring rods (8), and the plurality of scrapers (17) scrape the inner wall of the kettle body (1). The plurality of guide plates (18) are installed obliquely on the plurality of stirring rods (8) located below, and the plurality of guide plates (18) guide the 2.3-dibromopropionic acid inward.

6. A 2,3-dibromopropionic acid corrosion-resistant reactor according to claim 1, characterized in that: The invention also includes a sampling tube (19), a reflux tube (20), an upper valve (21) and a lower valve (22). The sampling tube (19) is installed on the side wall of the kettle body (1). The sampling tube (19) is communicated with the reaction chamber of the kettle body (1). The sampling tube (19) is installed with a valve. The lower part of the reflux tube (20) is communicated with the upper part of the side wall of the kettle body (1). A funnel is provided at the upper end of the reflux tube (20). The upper valve (21) is installed at the lower part of the reflux tube (20). The lower valve (22) is installed at the upper part of the reflux tube (20).

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