A reaction kettle solvent vapor recovery device

Abstract

The utility model belongs to solvent steam recovery device technical field, especially a kind of solvent steam recovery device of reaction kettle, in the process of reaction in prior art, it is prone to cause filter screen to remain a large amount of particulate matter, and the surface of sight glass cannot be cleaned, to affect the problem of use effect, present and propose the following scheme, it includes workbench and the reaction kettle main part and four support legs of bottom respectively fixed installation in workbench top;Hydraulic cylinder one, setting in reaction kettle main part inside;Sealing cover, setting on hydraulic cylinder one output shaft;Feed inlet, fixed installation in reaction kettle main part one side;Recovery pool, fixed installation in reaction kettle main part other side;Condenser, fixed installation in sealing cover top;Recovery mechanism, setting in reaction kettle main part inside, the utility model, in the process of reaction, the surface of filter screen can be cleaned, and the surface of sight glass can be cleaned, improve use effect.

Description

Technical Field

[0001] This application relates to the field of solvent vapor recovery equipment, and in particular to a solvent vapor recovery equipment for a reaction vessel. Background Technology

[0002] In chemical reactions, especially in atmospheric pressure solvent production, reflux condensers are commonly used. When the reaction temperature exceeds the solvent boiling point, the solvent evaporates and flows back into the reactor through the condenser, while the generated gas is carried away by venting.

[0003] CN205516594U discloses a solvent vapor recovery device for a reaction vessel, comprising a solvent vapor inlet pipe, a solvent vapor return pipe, a vent pipe, a condenser, a cooling pipe, and a sight glass. The solvent vapor inlet pipe connects the reaction vessel and the top of the condenser, and the bottom and top of the condenser are both connected to the cooling pipe. The solvent vapor return pipe connects the bottom of the condenser and the reaction vessel. A sight glass is connected in series on the solvent vapor return pipe. The vent pipe is connected in parallel to the solvent vapor return pipe. The vent pipe is inclined at 25-35 degrees to the horizontal. The middle position of the solvent vapor return pipe is U-shaped. This invention can solve the technical problem of how to improve the condensation and reflux effect of the reaction vessel.

[0004] In existing technologies, the reaction process can easily lead to a large amount of particulate matter remaining on the filter screen, and the surface of the sight glass cannot be cleaned, thus affecting the performance. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies, such as the easy retention of a large amount of particulate matter on the filter screen during the reaction process and the inability to clean the surface of the sight glass, which affects the performance of the device. Therefore, this invention proposes a solvent vapor recovery device for a reaction vessel.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A solvent vapor recovery device for a reaction vessel, comprising:

[0008] The workbench and the reactor body, which is fixedly installed on the top of the workbench, and the four support legs at the bottom;

[0009] Hydraulic cylinder one is located inside the main body of the reactor;

[0010] A sealing cover is installed on the output shaft of the hydraulic cylinder;

[0011] The feed inlet is fixedly installed on one side of the reactor body;

[0012] The recovery tank is fixedly installed on the other side of the main body of the reactor;

[0013] The condenser is fixedly installed on top of the sealing cover;

[0014] The recovery mechanism, located inside the main body of the reactor, is used to recover steam;

[0015] The stirring mechanism is located inside the main body of the reactor.

[0016] The heating mechanism is located inside the main body of the reactor.

[0017] The recycling and cleaning mechanism, located inside the sealed cover, is used for cleaning the recycling mechanism;

[0018] Sight glass, fixedly installed on top of the recycling pool;

[0019] The cleaning mechanism, located on the outside of the reactor body, is used to clean the surface of the sight glass.

[0020] Preferably, the stirring mechanism includes a drive motor disposed on one side of the reactor body, the output shaft of the drive motor being fixedly mounted with a stirring shaft, the outer surface of the stirring shaft being rotatably connected to the inner wall of the reactor body, and a plurality of stirring blades being fixed on the outer surface of the stirring shaft.

[0021] Preferably, the heating mechanism includes grooves disposed on the front and rear sides of the reactor body, heat-conducting plates are fixedly installed on the inner walls of the two grooves, and heating rods are fixedly installed on one end of the two heat-conducting plates.

[0022] Preferably, the recycling mechanism includes a steam box fixedly installed on the inner wall of the sealing cover, a filter screen fixedly installed inside the steam box, a cooling pipe fixedly installed on the top of the steam box, and the right side of the cooling pipe fixedly connected to the left side of the condenser.

[0023] Preferably, a solvent vapor inlet pipe one is fixedly installed on the right side of the condenser, a flexible hose is fixedly installed on the right side of the solvent vapor inlet pipe one, a solvent vapor inlet pipe two is fixedly installed at the bottom end of the flexible hose, the bottom side of the solvent vapor inlet pipe two is fixedly connected to the top side of the recovery tank, a solvent vapor inlet pipe three is fixedly installed at the bottom of the recovery tank, the right side of the solvent vapor inlet pipe three is fixedly connected to the left side of the reactor body, and a vent pipe is fixedly installed on the solvent vapor inlet pipe three.

[0024] Preferably, the recycling and cleaning mechanism includes two mounting slots disposed inside the steam box. A hydraulic cylinder is disposed on the inner wall of each of the two mounting slots. A cleaning brush is fixedly mounted on the output shaft of each of the two hydraulic cylinders. A sealing block is slidably mounted on one side of each of the two cleaning brushes. The two sealing blocks are slidably connected to the two mounting slots.

[0025] Preferably, each of the two sealing blocks is equipped with a second drive motor, the output shafts of the two second drive motors are fixedly mounted with screws, the outer surfaces of the two screws are rotatably connected to the interior of the two sealing blocks, the outer surfaces of the two screws are threadedly connected with connecting blocks, and the two connecting blocks are fixedly connected to the two cleaning brushes.

[0026] Preferably, the cleaning mechanism includes a connecting plate rotatably mounted on the top side of the recycling tank. An arc-shaped cleaning brush is fixedly mounted on the top of the connecting plate, and a cavity rotating shaft is fixedly mounted on the bottom of the connecting plate. The cavity rotating shaft is located outside the solvent vapor inlet pipe two. A spring plate is fixedly mounted on the outer surface of the cavity rotating shaft. A half gear one is fixedly mounted on the top of the spring plate. The half gear one meshes with a half gear two. A rotating rod is fixedly mounted on the half gear two. The outer surface of the rotating rod is rotatably connected to the inside of the recycling tank. A drive motor three is provided inside the recycling tank, and the outer surface of the rotating rod is fixedly connected to the output shaft of the drive motor three.

[0027] The beneficial effects of the solvent vapor recovery device for a reaction vessel described in this utility model are as follows:

[0028] Because of the recovery mechanism, steam enters the steam box, is heated, and then passes through a filter to remove impurities, ensuring the cleanliness of the steam. The filtered steam enters the cooling pipe, where it is initially cooled by heat dissipation through the pipe wall, avoiding direct impact on the condenser and causing thermal stress damage. After entering the condenser, the steam exchanges heat with the cooling water in a counter-current manner through a shell-and-tube or plate heat exchange structure, condensing into a liquid solvent. The condensate enters the recovery tank through solvent vapor inlet pipe one, a flexible hose, and solvent vapor inlet pipe two. After the steam recovery is completed, the steam enters the solvent vapor inlet pipe three through the recovery tank and returns to the main body of the reactor.

[0029] Because of the stirring mechanism, multiple stirring blades are driven by the stirring shaft to stir, which can react and mix the solvent.

[0030] Because a heating mechanism is installed, the heat generated by the heating rod is conducted outward through a heat-conducting plate, which can quickly heat the inside of the reactor body and carry out the reaction under high temperature.

[0031] Because of the recycling and cleaning mechanism, the contact pressure can be automatically adjusted according to the curvature of the filter screen surface to avoid excessive local wear. When the cleaning brush moves, the sealing block fills the gap between the filter screen and the equipment wall to prevent solvent or particulate matter from leaking.

[0032] Because of the cleaning mechanism, the spring plate is driven to rotate by the half gear, the spring plate drives the cavity shaft to rotate, the cavity shaft drives the connecting plate to rotate, and the connecting plate drives the arc-shaped cleaning brush to rotate. When it rotates to a certain extent, the cavity shaft is reset by elastic potential energy when the gear disengages, ensuring that the cleaning brush returns to its initial position accurately. The cavity shaft has a pre-reserved guide groove to avoid the accumulation of steam condensate that could cause transmission jamming.

[0033] This invention can clean the surface of the filter screen and the surface of the sight glass during the reaction process, thus improving the performance. Attached Figure Description

[0034] Figure 1 This is a schematic diagram of the structure of a solvent vapor recovery device for a reaction vessel proposed in this utility model;

[0035] Figure 2 This is a schematic diagram of the internal structure of the reactor body of the solvent vapor recovery device proposed in this utility model;

[0036] Figure 3 This is a schematic diagram of the arc-shaped cleaning brush of a solvent vapor recovery device for a reaction vessel proposed in this utility model;

[0037] Figure 4 This utility model proposes a solvent vapor recovery device for a reaction vessel. Figure 2 Enlarged structural diagram of section A;

[0038] Figure 5 This is a schematic diagram of the heating mechanism of a solvent vapor recovery device for a reaction vessel proposed in this utility model;

[0039] Figure 6 This is a schematic diagram of the stirring mechanism of a solvent vapor recovery device for a reaction vessel proposed in this utility model.

[0040] Reference numerals: 1. Workbench; 2. Support leg; 3. Reactor body; 4. Feed inlet; 5. Condenser; 6. Cooling pipe; 7. Solvent vapor inlet pipe one; 8. Hoses; 9. Sight glass; 10. Recovery tank; 11. Vent pipe; 12. Steam box; 13. Filter screen; 14. Hydraulic cylinder two; 15. Cleaning brush one; 16. Sealing block; 17. Drive motor two; 18. Screw; 19. Connecting block; 20. Hydraulic cylinder one; 21. Arc-shaped cleaning brush; 22. Connecting plate; 23. Cavity rotating shaft; 24. Spring plate; 25. Half gear one; 26. Half gear two; 27. Drive motor three; 28. Drive motor one; 29. ​​Stirring blade; 30. Stirring shaft; 31. Heat-conducting plate; 32. Heating rod. Detailed Implementation

[0041] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0042] Example 1

[0043] Reference Figures 1-6 A solvent vapor recovery device for a reaction vessel, comprising:

[0044] The workbench 1 and the reactor body 3, which is fixedly installed on the top of the workbench 3, and the four support legs 2 at the bottom;

[0045] Hydraulic cylinder 20 is installed inside the main body 3 of the reactor.

[0046] A sealing cover is installed on the output shaft of hydraulic cylinder 20.

[0047] Feed inlet 4 is fixedly installed on one side of the reactor body 3;

[0048] The recovery tank 10 is fixedly installed on the other side of the reactor body 3;

[0049] Condenser 5 is fixedly installed on the top of the sealing cover;

[0050] The recovery mechanism, located inside the main body 3 of the reactor, is used to recover steam;

[0051] The stirring mechanism is located inside the main body 3 of the reactor.

[0052] The heating mechanism is located inside the main body 3 of the reactor.

[0053] The recycling and cleaning mechanism, located inside the sealed cover, is used for cleaning the recycling mechanism;

[0054] Sight glass 9 is fixedly installed on the top of recycling tank 10;

[0055] The cleaning mechanism, located outside the reactor body 3, is used to clean the surface of the sight glass 9.

[0056] In this embodiment, the stirring mechanism includes a drive motor 28 disposed on one side of the reactor body 3. The output shaft of the drive motor 28 is fixedly mounted with a stirring shaft 30. The outer surface of the stirring shaft 30 is rotatably connected to the inner wall of the reactor body 3. A plurality of stirring blades 29 are fixed on the outer surface of the stirring shaft 30.

[0057] In this embodiment, the heating mechanism includes grooves on the front and rear sides of the reactor body 3. Heat-conducting plates 31 are fixedly installed on the inner walls of the two grooves, and heating rods 32 are fixedly installed on one end of each of the two heat-conducting plates 31.

[0058] In this embodiment, the recycling mechanism includes a steam box 12 fixedly installed on the inner wall of the sealing cover. A filter screen 13 is fixedly installed inside the steam box 12. A cooling pipe 6 is fixedly installed on the top of the steam box 12. The right side of the cooling pipe 6 is fixedly connected to the left side of the condenser 5.

[0059] In this embodiment, a solvent vapor inlet pipe 1 7 is fixedly installed on the right side of the condenser 5, a flexible hose 8 is fixedly installed on the right side of the solvent vapor inlet pipe 1 7, a solvent vapor inlet pipe 2 is fixedly installed at the bottom end of the flexible hose 8, the bottom side of the solvent vapor inlet pipe 2 is fixedly connected to the top side of the recovery tank 10, a solvent vapor inlet pipe 3 is fixedly installed at the bottom of the recovery tank 10, the right side of the solvent vapor inlet pipe 3 is fixedly connected to the left side of the reactor body 3, and a vent pipe 11 is fixedly installed on the solvent vapor inlet pipe 3.

[0060] In this embodiment, the recycling and cleaning mechanism includes two mounting slots located inside the steam box 12. A hydraulic cylinder 14 is installed on the inner wall of each of the two mounting slots. A cleaning brush 15 is fixedly installed on the output shaft of each of the two hydraulic cylinders 14. A sealing block 16 is slidably installed on one side of each of the two cleaning brushes 15. The two sealing blocks 16 are slidably connected to the two mounting slots.

[0061] In this embodiment, each of the two sealing blocks 16 is equipped with a second drive motor 17. The output shafts of the two second drive motors 17 are fixedly mounted with screws 18. The outer surfaces of the two screws 18 are rotatably connected to the interior of the two sealing blocks 16. The outer surfaces of the two screws 18 are threadedly connected with connecting blocks 19. The two connecting blocks 19 are fixedly connected to the two cleaning brushes 15.

[0062] In this embodiment, the cleaning mechanism includes a connecting plate 22 rotatably mounted on the top side of the recycling tank 10. An arc-shaped cleaning brush 21 is fixedly mounted on the top of the connecting plate 22, and a cavity rotating shaft 23 is fixedly mounted on the bottom of the connecting plate 22. The cavity rotating shaft 23 is located outside the solvent vapor inlet pipe 2. A spring plate 24 is fixedly mounted on the outer surface of the cavity rotating shaft 23. A half gear 1 25 is fixedly mounted on the top of the spring plate 24. Half gear 1 25 meshes with half gear 26. A rotating rod is fixedly mounted on half gear 26. The outer surface of the rotating rod is rotatably connected to the inside of the recycling tank 10. A drive motor 3 27 is provided inside the recycling tank 10. The outer surface of the rotating rod is fixedly connected to the output shaft of the drive motor 3 27.

[0063] In this invention, during use, the solvent enters the reactor body 3 through the feed inlet 4. When heating of the solvent is required, the heating rod 32 is activated, and the heat generated by the heating rod 32 is dissipated outward through the heat conduction plate 31, thereby quickly heating the interior of the reactor body 3 and allowing the reaction to proceed at high temperature. When stirring of the solvent is required, the drive motor 28 is activated, and the output shaft of the drive motor 28 drives the stirring shaft 30 to rotate. The stirring shaft 30 drives multiple stirring blades 29 to stir, enabling the solvent to react and mix. During the high-temperature heating process, steam enters the steam box 12, and after heating, it passes through the filter screen 13 to remove impurities, ensuring the cleanliness of the steam. The filtered steam enters the cooling pipe 6 and dissipates heat through the pipe wall. Initial cooling is performed to avoid thermal stress damage caused by direct impact on condenser 5. After entering condenser 5, steam exchanges heat with cooling water counter-currently through a shell-and-tube or plate heat exchange structure, condensing into a liquid solvent. The condensate enters the recovery tank 10 via solvent vapor inlet pipe 7, hose 8, and solvent vapor inlet pipe 2. After steam recovery, the steam enters the solvent vapor inlet pipe 3 through the recovery tank 10 and returns to the reactor body 3. When it is necessary to clean the surface of filter screen 13, two hydraulic cylinders 14 are activated. The output shafts of the two hydraulic cylinders 14 push two cleaning brushes 15 closer together, ensuring that the brush bristles completely cover the surface of filter screen 13. The two cleaning brushes 15 simultaneously drive two sealing blocks 16, two drive motors 17, and two screws 18. The two connecting blocks 19 are close to each other, and the contact pressure can be automatically adjusted according to the curvature of the filter screen 13 surface to avoid excessive local wear. When the cleaning brush moves, the sealing block 16 fills the gap between the filter screen 13 and the equipment wall to prevent solvent or particulate matter leakage. At the same time, the cleaning brush 15 can be adjusted according to the position of the filter screen 13. The two drive motors 17 are started, and the output shafts of the two drive motors 17 drive the two screws 18 to rotate. During the rotation of the two screws 18, the two connecting blocks 19 will move forward. The two connecting blocks 19 will simultaneously drive the two cleaning brushes 15 to move forward, which can clean the surface of the filter screen 13. When it is necessary to observe the steam, the sight glass 9 can observe the liquefaction. The sight glass 9 is made of high light transmittance heat-resistant glass and can withstand the liquefaction process. The system monitors the steam liquefaction status in real time based on steam temperature and pressure. When cleaning the surface of the sight glass 9 is required, the drive motor 27 is activated. The output shaft of the drive motor 27 drives the rotating rod to rotate, which in turn drives the half gear 26 to rotate. The half gear 26 then drives the half gear 1 to rotate, achieving a single 180° rotation to avoid continuous rotation obstructing the field of vision. The half gear 1 drives the spring plate 24 to rotate, which in turn drives the cavity shaft 23 to rotate. The cavity shaft 23 drives the connecting plate 22 to rotate, which in turn drives the arc-shaped cleaning brush 21 to rotate. When the rotation reaches a certain extent, the cavity shaft 23 is reset through elastic potential energy when the gears disengage, ensuring that the arc-shaped cleaning brush 21 accurately returns to its initial position. The cavity shaft 23 has a pre-reserved guide groove inside.To prevent steam condensation from accumulating and causing transmission jamming.

[0064] Example 2

[0065] The difference between this embodiment and Embodiment 1 is that a sensor is installed at the top of the recycling pool 10. When the haze on the surface of the sight glass exceeds the threshold, the sensor automatically starts the cleaning program.

[0066] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A solvent vapor recovery device for a reaction vessel, characterized in that: include: The workbench (1) and the reactor body (3) fixedly installed on the top of the workbench (1) and the four support legs (2) at the bottom; Hydraulic cylinder 1 (20) is located inside the main body (3) of the reactor; A sealing cover is installed on the output shaft of hydraulic cylinder one (20); The feed inlet (4) is fixedly installed on one side of the reactor body (3); The recovery tank (10) is fixedly installed on the other side of the reactor body (3); The condenser (5) is fixedly installed on the top of the sealing cover; The recovery mechanism is located inside the reactor body (3) and is used to recover steam; The stirring mechanism is located inside the main body (3) of the reactor. The heating mechanism is located inside the main body (3) of the reactor; The recycling and cleaning mechanism, located inside the sealed cover, is used for cleaning the recycling mechanism; Sight glass (9) is fixedly installed on top of recycling tank (10); The cleaning mechanism is located outside the reactor body (3) and is used to clean the surface of the sight glass (9).

2. The solvent vapor recovery device for a reaction vessel according to claim 1, characterized in that: The stirring mechanism includes a drive motor (28) disposed on one side of the reactor body (3). The output shaft of the drive motor (28) is fixedly mounted with a stirring shaft (30). The outer surface of the stirring shaft (30) is rotatably connected to the inner wall of the reactor body (3). Multiple stirring blades (29) are fixed on the outer surface of the stirring shaft (30).

3. The solvent vapor recovery device for a reaction vessel according to claim 1, characterized in that: The heating mechanism includes grooves on the front and rear sides of the reactor body (3), and heat-conducting plates (31) are fixedly installed on the inner walls of the two grooves. A heating rod (32) is fixedly installed on one end of each of the two heat-conducting plates (31).

4. The solvent vapor recovery device for a reaction vessel according to claim 1, characterized in that: The recycling mechanism includes a steam box (12) fixedly installed on the inner wall of the sealing cover. A filter screen (13) is fixedly installed inside the steam box (12). A cooling pipe (6) is fixedly installed on the top of the steam box (12). The right side of the cooling pipe (6) is fixedly connected to the left side of the condenser (5).

5. The solvent vapor recovery device for a reaction vessel according to claim 4, characterized in that: A solvent vapor inlet pipe 1 (7) is fixedly installed on the right side of the condenser (5). A hose (8) is fixedly installed on the right side of the solvent vapor inlet pipe 1 (7). A solvent vapor inlet pipe 2 is fixedly installed at the bottom end of the hose (8). The bottom side of the solvent vapor inlet pipe 2 is fixedly connected to the top side of the recovery tank (10). A solvent vapor inlet pipe 3 is fixedly installed at the bottom of the recovery tank (10). The right side of the solvent vapor inlet pipe 3 is fixedly connected to the left side of the reactor body (3). A vent pipe (11) is fixedly installed on the solvent vapor inlet pipe 3.

6. The solvent vapor recovery device for a reaction vessel according to claim 1, characterized in that: The recycling and cleaning mechanism includes two mounting slots located inside the steam box (12). Each of the two mounting slots has a hydraulic cylinder (14) installed on its inner wall. Each of the two hydraulic cylinders (14) has a cleaning brush (15) fixedly installed on its output shaft. Each of the two cleaning brushes (15) has a sealing block (16) slidably installed on one side. Each of the two sealing blocks (16) is slidably connected to the two mounting slots.

7. A solvent vapor recovery device for a reaction vessel according to claim 6, characterized in that: Both of the sealing blocks (16) are equipped with a second drive motor (17), and the output shafts of the two second drive motors (17) are fixedly mounted with screws (18). The outer surfaces of the two screws (18) are rotatably connected to the interior of the two sealing blocks (16). The outer surfaces of the two screws (18) are threadedly connected with connecting blocks (19), and the two connecting blocks (19) are fixedly connected to the two cleaning brushes (15).

8. The solvent vapor recovery device for a reaction vessel according to claim 7, characterized in that: The cleaning mechanism includes a connecting plate (22) rotatably mounted on the top side of the recycling tank (10). An arc-shaped cleaning brush (21) is fixedly mounted on the top of the connecting plate (22). A cavity rotating shaft (23) is fixedly mounted on the bottom of the connecting plate (22). The cavity rotating shaft (23) is located outside the solvent vapor inlet pipe 2. A spring plate (24) is fixedly mounted on the outer surface of the cavity rotating shaft (23). A half gear 1 (25) is fixedly mounted on the top of the spring plate (24). The half gear 1 (25) meshes with a half gear 2 (26). A rotating rod is fixedly mounted on the half gear 2 (26). The outer surface of the rotating rod is rotatably connected to the inside of the recycling tank (10). A drive motor 3 (27) is provided inside the recycling tank (10). The outer surface of the rotating rod is fixedly connected to the output shaft of the drive motor 3 (27).

Images