Reaction kettle cleaning equipment

Abstract

The utility model relates to reaction kettle cleaning equipment. Comprising a top plate and a bottom plate, a left side longitudinal beam and a right side longitudinal beam are installed between the top plate and the bottom plate, an adapter frame is fixedly installed at the bottom of the bottom plate, a sealed cabin with a cabin door is installed below the adapter frame, a ball valve is installed at the bottom of the sealed cabin, and a lifting sliding frame is arranged between the two side longitudinal beams. A driving device used for driving the lifting sliding frame to do lifting movement is installed between the top plate and the transfer frame. Safety air cylinders used for stopping the lifting sliding frame lifted to the high position are installed on the upper portions of the two side longitudinal beams. A cleaning nozzle is mounted at the lower end of the cleaning pipe, a water inlet joint is mounted at the upper end of the cleaning pipe, and the lower part of the cleaning pipe penetrates through the adapter frame, the sealed cabin and the ball valve; and the inflatable protection assembly is used for inflating protective gas into the sealed cabin in a non-working state. The utility model provides reaction kettle cleaning equipment which is applied to cleaning of a vertical reaction kettle and is efficient and stable in operation.

Description

A reactor cleaning device Technical Field

[0001] This utility model belongs to the technical field of industrial cleaning equipment, and in particular relates to a reactor cleaning device for cleaning vertical reactors. Background Technology

[0002] After the reaction is completed and the products are discharged from reaction vessels such as polymerization reactors, residues remain on the inner walls and stirring components. If these residues are not cleaned, they will affect the reaction process of the next batch of materials and impact product quality. This is especially critical when the reactor is continuously producing different products. Equipping the reactor with cleaning equipment will help improve product quality. The cleaning equipment should be highly efficient and stable in operation. In scenarios where reactor operation and cleaning are interspersed, the cleaning equipment should minimize its impact on the normal operation of the reactor.

[0003] Existing cleaning equipment is insufficient to meet the aforementioned requirements, therefore new types of cleaning equipment need to be developed. Summary of the Invention

[0004] The purpose of this invention is to provide a reactor cleaning device that is highly efficient and stable in operation and is applicable to the cleaning of vertical reactors.

[0005] The technical solution adopted by this utility model is as follows: a reactor cleaning device, including a top plate and a bottom plate, with two left and right side longitudinal beams installed between them. A transfer frame is installed and fixed at the bottom of the bottom plate, and a sealed chamber with a door is installed below the transfer frame. A ball valve is installed at the bottom of the sealed chamber. A lifting slide is provided between the two side longitudinal beams. A drive device for driving the lifting slide to move up and down is installed between the top plate and the transfer frame. A safety cylinder is installed on the upper part of the two side longitudinal beams to stop the lifting slide when it is raised to a high position. It also includes a cleaning pipe with a cleaning nozzle installed at the lower end, a water inlet connector installed at the upper end of the cleaning pipe, and the lower part of the cleaning pipe passes through the transfer frame, the sealed chamber, and the ball valve. It also includes a gas filling protection component for filling the sealed chamber with protective gas when not in operation.

[0006] Preferably, the adapter includes an upper end plate, a lower end plate, and a plurality of columns located between the two. The upper end plate is fixedly connected to the bottom plate, and the lower end plate is fixedly connected to the top of the sealed chamber. A central window is provided in the middle of the lower end plate, and a sealing assembly is installed in the middle of the top wall of the sealed chamber and is located inside the central window. The lower part of the cleaning pipe passes through the sealing assembly.

[0007] Preferably, the driving device includes a lifting drive assembly mounted on the top plate. The lifting drive assembly includes a pneumatic motor and a top rotating shaft with two sprockets on the left and right sides. The output shaft of the pneumatic motor is connected to the top rotating shaft. Two bases are installed in the adapter frame, and sprockets are installed on the bases. The upper and lower sprockets on the left side and the upper and lower sprockets on the right side are respectively connected by chain drive. The lifting slide is fixedly connected to the chain. Two sets of chain holes are provided on the bottom plate and the upper plate.

[0008] Preferably, two sets of rollers are installed on the left side and the right side of the lifting carriage, and the side longitudinal beam is located between the two sets of rollers on this side, serving as the track for the lifting carriage to move up and down.

[0009] Preferably, the inflation protection assembly includes an inflation connection valve installed on the hatch, a throttle valve and a pressure relief valve installed on the inflation connection valve, and the air source pipeline is connected to the throttle valve through a pressure regulating valve.

[0010] Preferably, a front longitudinal beam is installed between the front of the top plate and the bottom plate, and a portal-shaped reinforcing connecting frame is installed between the upper and lower parts of the two side longitudinal beams, with the front longitudinal beam located inside the reinforcing connecting frame.

[0011] Preferably, limit buffers are installed at both the top and bottom of the lifting carriage. When the lifting carriage rises to the high position, the limit buffer at the top contacts the top plate, and when the lifting carriage descends to the low position, the limit buffer at the bottom contacts the bottom plate.

[0012] Preferably, three sets of limit switches (high, medium, and low) for detecting the height position of the lifting carriage are installed on the side of the side longitudinal beam. The limit switches are mechanical contact switches, and a trigger rod that cooperates with the limit switches is provided on the side of the lifting carriage.

[0013] Preferably, it also includes an interface assembly, which includes an intermediate pipe and flanges located at the upper and lower ends of the intermediate pipe. The upper flange is fixedly connected to the lower flange of the ball valve, and the lower flange is connected to the cleaning interface flange on the reactor.

[0014] The advantages and positive effects of this utility model are:

[0015] This invention provides a reactor cleaning device for cleaning vertical reactors. Compared to existing cleaning devices, this vertical cleaning device is installed on the cleaning interface at the top of the vertical reactor. During cleaning, the ball valve assembly opens, and the cleaning pipe and nozzle descend into the interior of the vertical reactor. After cleaning, the cleaning nozzle is raised into the sealed chamber, and the ball valve assembly is closed to isolate the cleaning device from the vertical reactor. Therefore, this cleaning device can quickly switch between cleaning and non-cleaning states, rapidly performing internal cleaning operations on the vertical reactor, and operating efficiently and stably. After cleaning, the cleaning device can be completely isolated from the vertical reactor, thus not affecting the operation of the vertical reactor.

[0016] This reactor cleaning equipment is equipped with a gas filling protection component. When not in operation, a protective gas (such as nitrogen) is injected into the sealed chamber through the gas filling protection component. This prevents oxygen-containing air from entering the reactor during cleaning operations, achieving a gas isolation effect and further avoiding adverse effects on the operation of the reactor. Attached Figure Description

[0017] Figure 1 is a three-dimensional structural diagram of this utility model;

[0018] Figure 2 is a three-dimensional structural diagram of the upper part of this utility model;

[0019] Figure 3 is a schematic diagram of the internal structure of the lower part of this utility model.

[0020] In the picture:

[0021] 1. Water inlet connector; 2. Reinforced connecting frame; 3. Top plate; 4. Lifting slide; 5. Rollers; 6. Lifting drive assembly; 7. Safety cylinder; 8. Cleaning pipe; 9. Limit switch; 10. Side longitudinal beam; 11. Chain hole; 12. Base plate; 13. Base; 14. Sealed chamber; 15. Door; 16. Adapter frame; 16-1. Upper end plate; 16-2. Support column; 16-3. Lower end plate; 16-4. Center window; 17. Pressure regulating valve; 18. Inflation connection valve; 19. Ball valve; 20. Interface assembly; 21. Limit buffer; 22. Front longitudinal beam; 23. Throttling valve; 24. Pressure relief valve; 25. Cleaning nozzle. Detailed Implementation

[0022] To further understand the invention content, features and effects of this utility model, the following embodiments are provided in detail.

[0023] Please refer to Figures 1, 2, and 3. The reactor cleaning equipment of this utility model includes a top plate 3 and a bottom plate 12. Two side longitudinal beams 10 are installed between the two. The upper end of the side longitudinal beams 10 is welded and fixed to the top plate 3, and the lower end is welded and fixed to the bottom plate 12. In this embodiment, a front longitudinal beam 22 is also installed between the front parts of the top plate 3 and the bottom plate 12. The upper end of the front longitudinal beam 22 is welded and fixed to the top plate 3, and the lower end is welded and fixed to the bottom plate 12. A portal-shaped reinforcing connecting frame 2 is installed between the upper middle and lower middle parts of the two side longitudinal beams 10 to improve the overall structural strength. The front longitudinal beam 22 is located inside the reinforcing connecting frame 2.

[0024] A transition frame 16 is fixedly installed at the bottom of the base plate 3. A sealed compartment 14 with a hatch 15 is installed below the transition frame 16. A ball valve 19, which is an electrically controlled ball valve, is installed at the bottom of the sealed compartment 14. A lifting slide 4 is provided between the two side longitudinal beams 10. A drive device for driving the lifting slide 4 to move up and down is installed between the top plate 3 and the transition frame 16. A safety cylinder 7 is installed on the upper part of the two side longitudinal beams 10 to stop the lifting slide 4 when it is raised to the high position.

[0025] In this embodiment, two sets of rollers 5 are installed on the left side and the right side of the lifting slide 4. The side longitudinal beam 10 is located between the two sets of rollers 5 on this side, and the side longitudinal beam 10 also serves as the track for the lifting slide 4 to move up and down.

[0026] It also includes a cleaning pipe 8 with a cleaning nozzle 25 installed at its lower end, a water inlet connector 1 installed at the upper end of the cleaning pipe 8, and a top of the cleaning pipe 8 fixedly connected to the lifting slide 4. The lower part of the cleaning pipe 8 passes through the adapter frame 16, the sealed chamber 14, and the ball valve 19. Initially, the cleaning nozzle 25 is located inside the sealed chamber 14. When the ball valve 19 is closed, the bottom of the sealed chamber 14 is sealed, thus the cleaning nozzle 25 is sealed inside the sealed chamber 14. When cleaning the reactor, the ball valve 19 is opened, and the drive device drives the lifting slide 4 to move downward along the side longitudinal beam 10. At this time, the cleaning pipe 8 and its cleaning nozzle 25 move downward, and the cleaning nozzle 25 moves downward and moves into the interior of the reactor. By controlling the vertical movement of the cleaning nozzle 25, spray cleaning is achieved at different heights on the inner wall of the reactor.

[0027] As shown in Figure 3, the adapter frame 16 includes an upper end plate 16-1, a lower end plate 16-3, and multiple columns 16-2 located between them, forming a cage-like structure. The upper ends of the columns 16-2 are welded to the upper end plate 16-1, and the lower ends of the columns 16-2 are welded to the lower end plate 16-3. The upper end plate 16-1 is bolted to the base plate 12, and the lower end plate 16-3 is bolted to the top of the sealed chamber 14. A central window 16-4 is provided in the middle of the lower end plate 16-3. A sealing assembly is installed in the middle of the top wall of the sealed chamber 14, and the sealing assembly is located inside the central window 16-4. The lower part of the cleaning pipe 8 passes through the sealing assembly. The sealing assembly consists of a sealing sleeve with a flange at the bottom and multiple sealing rings located inside the sealing sleeve. The flange of the sealing sleeve is bolted to the top wall of the sealing chamber 14. The cleaning pipe 8 moves up and down within the sealing assembly, and the sealing rings are squeezed and deformed, thus closing the gap between the cleaning pipe 8 and the sealing sleeve to achieve a sealing effect.

[0028] In this embodiment, the driving device includes a lifting drive assembly 6 mounted on the top plate 3. The lifting drive assembly 6 includes a pneumatic motor and a top rotating shaft with two left and right sprockets. The output shaft of the pneumatic motor is connected to the top rotating shaft (as shown in the figure, a protective cover is installed on the top plate 3, and the top rotating shaft and its two left and right sprockets are located inside the protective cover). Two bases 13 (the bases 13 are fixedly mounted on the column 16-2) are installed in the adapter frame 16, and sprockets are installed on the bases 13. The upper and lower sprockets on the left and the upper and lower sprockets on the right are connected by chain drive. The lifting slide 4 is fixedly connected to the chain. Two sets of chain holes 11 are provided on the bottom plate 12 and the upper end plate 16-1.

[0029] The pneumatic motor drives the top rotating shaft and its sprocket to rotate in either the forward or reverse direction. When rotating forward, the chain drives the lifting slide 4 to move upward; when rotating in the reverse direction, the chain drives the lifting slide 4 to move downward. Of course, it is conceivable that the pneumatic motor could also be replaced by a servo motor, changing the pneumatic control method to an electronic control method.

[0030] In this embodiment, limit buffers 21 are installed at both the top and bottom of the lifting slide 4. When the lifting slide 4 rises to the high position, the top limit buffer 21 contacts the top plate 3; when the lifting slide 4 descends to the low position, the bottom limit buffer 21 contacts the bottom plate 12. The purpose of setting the top and bottom limit buffers 21 is to provide a limiting and buffering effect, preventing the lifting slide 4 from moving beyond its limits and colliding with other components.

[0031] In this embodiment, three sets of limit switches 9 (high, medium, and low) are installed on the side of the side longitudinal beam 10 to detect the height position of the lifting carriage 4. The limit switches 9 are mechanical contact switches, and a trigger rod that cooperates with the limit switches 9 is provided on the side of the lifting carriage 4. During the lifting and lowering movement of the lifting carriage 4, different limit switches 9 are triggered at different positions, thus determining the position of the lifting carriage 4. As shown in Figure 1, the limit switches 9 are provided in three sets (high, medium, and low). When the high-position limit switch 9 is triggered, it indicates that the lifting carriage 4 has moved to the high position, and when the low-position limit switch 9 is triggered, it indicates that the lifting carriage 4 has moved to the low position. By setting the positions of the lower limit switches 9, multiple cleaning points at different heights can be set.

[0032] It also includes an inflation protection assembly for filling the sealed chamber 14 with a protective gas (e.g., nitrogen) when not in operation. In this embodiment, the inflation protection assembly includes an inflation connection valve 18 with a pressure gauge installed on the door 15. A throttle valve 23 and a pressure relief valve 24 are installed on the inflation connection valve 18. The gas source pipeline is connected to the throttle valve 23 through a pressure regulating valve 17 with a pressure gauge. The pressure regulating valve 17 is used to adjust the maximum pressure reached when the protective gas is filled into the sealed chamber 14. The throttle valve 23 is used to adjust the flow rate when the protective gas is injected into the sealed chamber 14. The pressure relief valve 24 is a manual pressure relief valve with a knob. When the pressure gauge on the inflation connection valve 18 shows that the pressure inside the chamber is too high, the pressure relief valve 24 can be manually operated to release gas appropriately to reduce the pressure inside the chamber.

[0033] In this embodiment, an interface component 20 is also included. The interface component 20 includes an intermediate pipe and flanges located at the upper and lower ends of the intermediate pipe. The upper flange is fixedly connected to the lower flange of the ball valve 19, and the lower flange is connected to the cleaning interface flange on the reactor. Therefore, the purpose of setting the interface component 20 is to improve the convenience of connection between the main body of this cleaning equipment and the cleaning interface on the reactor.

[0034] Operating method:

[0035] Install this cleaning equipment onto the cleaning port on the top of the reactor via the bottom interface component 20, and connect the cleaning water source pipe to the water inlet connector 1; when performing the cleaning operation, open the ball valve 19, and the drive device lowers the lifting slide 4 to a certain height position, for example, the lifting slide 4 triggers the limit switch 9 in the middle position. At this time, the cleaning nozzle 25 moves into the interior of the reactor and sprays cleaning onto the inner wall of the reactor at the set height position.

[0036] After the cleaning operation is completed, the drive unit raises the lifting slide 4 to the high position. At this time, the cleaning nozzle 25 is lifted into the sealed chamber 14, and the piston rod of the safety cylinder 7 extends. The end of the piston rod is located below the lifting slide 4, preventing the lifting slide 4 from falling uncontrollably. Then, the gas charging protection component is activated, and the protective gas (e.g., nitrogen) is injected into the sealed chamber 14 through the pressure regulating valve 17, the throttle valve 23 and the gas charging connection valve 18. The protective gas occupies the internal space of the sealed chamber 14. Then, the ball valve 19 is closed, and the cleaning equipment is isolated from the inside of the reactor.

Claims

1. A reactor cleaning device, characterized in that: The system includes a top plate (3) and a bottom plate (12), with two side longitudinal beams (10) installed between them. A transfer frame (16) is fixed at the bottom of the bottom plate (12), and a sealed compartment (14) with a hatch (15) is installed below the transfer frame (16). A ball valve (19) is installed at the bottom of the sealed compartment (14). A lifting slide (4) is provided between the two side longitudinal beams (10), and a mechanism for driving the lifting slide (4) is installed between the top plate (3) and the transfer frame (16). The drive unit for lowering and moving includes a safety cylinder (7) installed on the upper part of the two side longitudinal beams (10) to stop the lifting slide (4) when it is raised to the high position; it also includes a cleaning pipe (8) with a cleaning nozzle (25) installed at the lower end, a water inlet connector (1) installed at the upper end of the cleaning pipe (8), and the lower part of the cleaning pipe (8) passes through the adapter (16), the sealed chamber (14) and the ball valve (19); it also includes an inflation protection component that fills the sealed chamber (14) with protective gas when not in operation.

2. The reactor cleaning equipment as described in claim 1, characterized in that: a transfer... The frame (16) includes an upper end plate (16-1), a lower end plate (16-3), and a plurality of columns (16-2) located between the two. The upper end plate (16-1) is fixedly connected to the bottom plate (12), and the lower end plate (16-3) is fixedly connected to the top of the sealed chamber (14). A central window (16-4) is provided in the middle of the lower end plate (16-3). A sealing assembly is installed in the middle of the top wall of the sealed chamber (14) and the sealing assembly is located inside the central window (16-4). The lower part of the cleaning pipe (8) passes through the sealing assembly.

3. The reactor cleaning equipment as described in claim 2, characterized in that: The drive unit includes a lifting drive assembly (6) mounted on the top plate (3). The lifting drive assembly (6) includes a pneumatic motor and a top rotating shaft with two left and right sprockets. The output shaft of the pneumatic motor is connected to the top rotating shaft. Two bases (13) are installed in the adapter frame (16) and sprockets are installed on the bases (13). The upper and lower sprockets on the left and the upper and lower sprockets on the right are connected by chain drive. The lifting slide (4) is fixedly connected to the chain. Two sets of chain holes (11) are provided on the bottom plate (12) and the upper end plate (16-1).

4. The reactor cleaning equipment as described in claim 3, characterized in that: Two sets of rollers (5) are installed on the left side and the right side of the lifting slide (4). The side longitudinal beam (10) is located between the two sets of rollers (5) on this side, serving as the track for the lifting slide (4) to move up and down.

5. The reactor cleaning equipment as described in claim 4, characterized in that: The inflation protection assembly includes an inflation connection valve (18) installed on the hatch (15), a throttle valve (23) and a pressure relief valve (24) installed on the inflation connection valve (18), and the air source pipeline is connected to the throttle valve (23) through a pressure regulating valve (17).

6. The reactor cleaning equipment as described in claim 5, characterized in that: in A front longitudinal beam (22) is installed between the front of the top plate (3) and the bottom plate (12). A portal-shaped reinforcing connecting frame (2) is installed between the upper and lower parts of the two side longitudinal beams (10). The front longitudinal beam (22) is located inside the reinforcing connecting frame (2).

7. The reactor cleaning equipment as described in claim 6, characterized in that: Limiting buffers (21) are installed at the top and bottom of the lifting carriage (4). When the lifting carriage (4) rises to the high position, the limiting buffer (21) at the top contacts the top plate (3). When the lifting carriage (4) falls to the low position, the limiting buffer (21) at the bottom contacts the bottom plate (12).

8. The reactor cleaning equipment as described in claim 7, characterized in that: in The side of the side longitudinal beam (10) is equipped with three sets of limit switches (9) for detecting the height position of the lifting slide (4), with high, medium and low. The limit switches (9) are mechanical contact switches. A trigger rod that cooperates with the limit switches (9) is provided on the side of the lifting slide (4).

9. The reactor cleaning equipment as described in claim 8, characterized in that: It also includes an interface assembly (20), which includes an intermediate pipe and flanges located at the upper and lower ends of the intermediate pipe. The upper flange is fixedly connected to the lower flange of the ball valve (19), and the lower flange is connected to the cleaning interface flange on the reactor.

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