A urea synthesis stripping column

Abstract

The present application provides a kind of urea synthesis stripping tower, including stripping tower, the protective shell is fixed around stripping tower, steam pipe is arranged through in stripping tower, steam pipe input end is connected with the gas source outside, the output end of steam pipe is fixedly connected with gas guide component, the gas guide component includes the first gas pipe and the second gas pipe of multiple roots of fixedly connected on the output end of steam pipe, the first gas pipe and the second gas pipe of multiple roots are all around the steam pipe setting, the first gas pipe and the second gas pipe of multiple roots are opposite to form cross arrangement in inclined direction;The included angle between the first gas pipe and the second gas pipe and the steam pipe is 45°-55°;The output end of first gas pipe and second gas pipe is all opened multiple gas holes;Heating assembly is provided on the outer periphery of protective shell, and heating assembly surrounds protective shell, for heating inside stripping tower.The present application greatly improves the heating efficiency of stripping pipe, and realizes the recycling of steam.

Description

Technical Field

[0001] This invention relates to the field of stripping tower technology, and more specifically, to a urea synthesis stripping tower. Background Technology

[0002] Stripping is a unit operation used to recover absorbed solutes and to separate the absorbent from the solute for regeneration. In some cases, stripping is also used to remove light components from liquids. Stripping columns can be plate columns or packed columns. Regardless of the column type, the feed enters from the top and exits from the bottom; the desorbent enters from the bottom, contacts the liquid feed countercurrently, and exits from the top along with the stripped component. Unlike absorption columns, the concentrated end is at the top and the dilute end is at the bottom. In a stripping column, the equilibrium partial pressure of the solute in the liquid phase is greater than that in the gas phase. Stripping requires the solute molecules to change phase to gas, making it an endothermic process. Therefore, the stripping agent temperature is generally equal to or greater than the feed temperature; otherwise, the stripping efficiency will be reduced.

[0003] In practice, stripping towers can separate substances. During operation, saturated steam needs to be supplied to the stripping tower to meet the reaction conditions. The heating uniformity of the stripping tubes directly affects the stripping efficiency. Existing structures generally use spiral or multi-vertical tube designs, but these methods have low heating efficiency and need to be improved. After the steam is used up, it is directly discharged to the outside, resulting in low steam utilization efficiency. Existing equipment cannot recycle the steam, leading to a large amount of steam consumed by the stripping tower, which increases the production cost of the equipment.

[0004] Therefore, we propose a urea synthesis stripping tower to solve the above problems. Summary of the Invention

[0005] To address the problems existing in the current technical solutions, the purpose of this invention is to provide a urea synthesis stripping tower.

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

[0007] A urea synthesis stripping tower, comprising:

[0008] Stripping tower;

[0009] The stripping tower is surrounded by a protective shell. A steam pipe runs through the stripping tower, with its inlet end connected to an external gas source and its outlet end fixedly connected to a gas guiding assembly. The gas guiding assembly includes multiple first outlet pipes and multiple second outlet pipes fixedly connected to the outlet end of the steam pipe. The multiple first outlet pipes and multiple second outlet pipes are arranged around the steam pipe, with their inclination directions opposite, forming a crisscross arrangement. The angle between the multiple first outlet pipes and the steam pipe is 45°-55°. The outlet ends of the multiple first outlet pipes each have multiple first outlet holes, and the outlet ends of the multiple second outlet pipes each have multiple second outlet holes.

[0010] A heating element is provided on the outer periphery of the protective shell, which surrounds the protective shell and is used to heat the inside of the stripping tower.

[0011] As a further improvement to this solution, the heating assembly includes a heating cover fixedly connected to the protective shell. The heating cover is composed of a heat-conducting shell and a heat-insulating shell, with the sidewall of the heat-conducting shell in contact with the protective shell. The heat-insulating shell is located on the side away from the protective shell and in contact with the outside. The heating cover is provided with multiple electric heating wires. A connecting pipe is fixedly connected to the heating cover, and the output end of the connecting pipe is connected to a steam pipe. A temperature sensor is provided on the connecting pipe, and a one-way valve is provided between the connecting pipe and the steam pipe.

[0012] As a further improvement to this solution, the urea synthesis stripping tower also includes a gas extraction assembly, which is used to extract the gas inside the stripping tower. The gas extraction assembly includes a support column fixedly connected to the heating hood, a circulation pump fixedly connected to one end of the support column, an input pipe fixedly connected to the input end of the circulation pump, and one end of the input pipe extending into the interior of the stripping tower. An output pipe is fixedly connected to the output end of the circulation pump.

[0013] As a further improvement to this solution, the urea synthesis stripping tower also includes a storage component; the storage component is connected to an external water source, and the output end of the extraction component extends into the storage component; the storage component includes multiple support rods fixedly connected to the side wall of the heating hood, one end of each support rod is fixedly connected to a water tank, the input end of the water tank is fixedly connected to a water inlet pipe, the output end of the water tank is fixedly connected to a water outlet pipe, the bottom of the water tank is fixedly connected to a discharge pipe, and one end of the discharge pipe extends into the water tank.

[0014] As a further improvement to this solution, the storage component includes a rotating component, on which a cleaning component is connected, and the cleaning component contacts the inner wall of the storage component. The rotating component includes multiple first connecting rods fixedly connected to the inner wall of the water tank, one end of each of the multiple first connecting rods being fixedly connected to the same bearing, and a rotating rod passing through the bearing. The cleaning component includes a fan blade fixedly connected to the rotating rod, and two limiting rings are coaxially fixedly connected to the rotating rod, with the two limiting rings located on the upper and lower sides of the fan blade, respectively. A cleaning plate is fixedly connected to the rotating rod, and a cleaning brush is provided on the cleaning plate, with the cleaning brush contacting the inner wall of the water tank.

[0015] As a further improvement to this solution, a pressurizing component is connected to the storage component, and one end of the pressurizing component is connected to the heating component. A conveying component is connected to the storage component. The pressurizing component includes two bent rods fixedly connected to the water tank. One end of the two bent rods is connected to the same booster pump. An air inlet pipe is fixedly connected to the air inlet end of the booster pump, and one end of the air inlet pipe is connected to the top of the water tank. The fan blade is located in the air inlet pipe. An air outlet pipe is fixedly connected to the output end of the booster pump, and one end of the air outlet pipe is connected to the heating cover.

[0016] As a further improvement to this solution, a blocking component is connected to the conveying assembly; the conveying assembly includes an inlet pipe fixedly connected to the output end of the water tank, an inlet pipe equipped with a solenoid valve, a nozzle fixedly connected to the output end of the inlet pipe, a processing cylinder fixedly connected to the output end of the air inlet pipe, a filter cylinder fixedly connected to the inner side wall of the processing cylinder, one end of the inlet pipe passing through the side wall of the processing cylinder and extending into the filter cylinder, and the processing cylinder having two symmetrical openings.

[0017] As a further improvement to this solution, the blocking assembly includes an electric slide rail fixedly connected to the side wall of the processing cylinder, an electric slider slidably connected to the electric slide rail, two second connecting rods fixedly connected to the electric slider, and a baffle fixedly connected to one end of each of the two second connecting rods, with the two baffles respectively located on one side of the opening.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. By arranging multiple first and second gas outlet pipes around the steam pipe, with the multiple first and second gas outlet pipes inclined in opposite directions to form a cross arrangement; the angle between the multiple first and second gas outlet pipes and the steam pipe is 45°-55°. In this cross-dense arrangement, each of the first and second gas outlet pipes has multiple gas outlet holes, and the output ends of the multiple gas outlet holes are all inclined downwards. The stripping pipes in the stripping tower can be evenly placed between the multiple first and second gas outlet pipes. This makes the heating of the stripping pipes more uniform. At the same time, the downward orientation of the output ends of the multiple gas outlet holes increases the contact time between the gas and the stripping pipes, greatly increasing the heating efficiency of the device.

[0020] 2. The steam from the stripping tower is circulated into a water tank by a circulating pump and then discharged, further increasing the moisture content of the steam and ensuring it retains a certain level of moisture. A booster pump draws the steam from the water tank, allowing it to enter the heating hood under pressure, thus achieving a certain pressure. After being heated, the steam enters the steam pipe through the connecting pipe, enabling the steam to be recycled.

[0021] 3. When the booster pump is working, the fan blades rotate, and the cleaning plate rotates accordingly, which cleans the inner wall of the water tank, preventing scale from adhering to the water tank and thus protecting the water tank and indirectly extending its service life. Attached Figure Description

[0022] The invention will be further described below with reference to the accompanying drawings.

[0023] Figure 1 This is a schematic diagram of the structure of the present invention;

[0024] Figure 2 This is a first-view structural diagram of the present invention;

[0025] Figure 3 This is a schematic diagram of the second perspective structure of the present invention;

[0026] Figure 4 This is a schematic diagram of the steam pipe connection structure in this invention;

[0027] Figure 5 for Figure 4 A schematic diagram of the connection structure viewed from below;

[0028] Figure 6 This is a schematic diagram of the first partial connection structure of the present invention;

[0029] Figure 7 This is a schematic diagram of the second partial connection structure of the present invention;

[0030] Figure 8for Figure 7 A partially enlarged schematic diagram of the connection structure at point A in the middle;

[0031] Figure 9 This is a schematic diagram of the connection structure between the conveying component and the blocking component of the present invention.

[0032] The diagram shows the following components: 1-Stripping tower, 2-Protective shell, 3-Steam pipe, 4-Heating cover, 40-Temperature sensor, 41-Heat-conducting shell, 42-Insulation shell, 43-One-way valve, 5-Electric heating wire, 6-First outlet pipe, 7-First outlet hole, 8-Second outlet pipe, 9-Second outlet hole, 10-Support column, 11-Circulating pump, 12-Input pipe, 13-Output pipe, 14-Support rod, 15-Water tank, 16-Inlet pipe, 17-Outlet pipe, 18-Water outlet pipe. 8-Discharge pipe, 19-First connecting rod, 20-Bearing, 21-Rotating rod, 22-Fan blade, 23-Cleaning plate, 24-Limiting ring, 25-Bending rod, 26-Booster pump, 27-Inlet pipe, 28-Outlet pipe, 29-Inlet pipe, 30-Solenoid valve, 31-Nozzle, 32-Processing cylinder, 33-Filter cylinder, 34-Opening, 35-Electric slide rail, 36-Electric slider, 37-Second connecting rod, 38-Baffle, 39-Connecting pipe. Detailed Implementation

[0033] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments and accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0034] Reference Figure 1-9 This embodiment of a urea synthesis stripping tower includes a stripping tower 1, which is a vertical fixed tube sheet falling film shell-and-tube heat exchanger, consisting of a high-pressure section and a low-pressure section. The high-pressure section of the stripping tower consists of a tube box short section spherical end cap, a manhole cover, a liquid distributor, stripping pipes, riser pipes, tube sheets, etc. The low-pressure section consists of a low-pressure shell, expansion joints, explosion-proof plates, etc.

[0035] A protective shell 2 is fixedly connected to the outer wall of the stripping tower 1. The protective shell 2 is made of a heat-conducting material, which can improve the heat conduction effect of the heating cover 4. A steam pipe 3 is installed through the stripping tower 1 and is connected to an external high-pressure saturated steam source, so that steam can enter the stripping tower 1. This allows the reactants inside the stripping tower 1 to have a high-temperature environment, which enables the reactants to react with each other.

[0036] See you later Figure 4 . Figure 5In this embodiment, the steam pipe 3 is bent, and multiple first exhaust pipes 6 are fixedly connected to the output end of the steam pipe 3. All first exhaust pipes 6 are inclined upwards. Simultaneously, multiple second exhaust pipes 8 are fixedly connected to the output end of the steam pipe 3. All second exhaust pipes 8 are inclined downwards. It is particularly noteworthy that the arrangement of the first exhaust pipes 6 and the second exhaust pipes 8 increases the number of exhaust pipes and allows for more even gas discharge. Furthermore, the first exhaust pipes 6 and the second exhaust pipes 8 are respectively provided with multiple first exhaust holes 7 and multiple second exhaust holes 9. Specifically, the input end of the steam pipe 3 is connected to an external gas source, and the multiple first exhaust pipes 6 and multiple second exhaust holes... All pipes 8 are arranged around the steam pipe 3, and multiple first outlet pipes 6 and multiple second outlet pipes 8 are arranged in opposite directions to form a cross arrangement; the angle between the multiple first outlet pipes 6 and multiple second outlet pipes 8 and the steam pipe 3 is 45°-55°; it is particularly noteworthy that the output ends of multiple first outlet holes 7 and multiple second outlet holes 9 are all inclined downwards, and the stripping pipes in the stripping tower 1 can be evenly placed between the multiple first outlet pipes 6 and multiple second outlet pipes 8, so that the heating of the stripping pipes can be more uniform. At the same time, the downward orientation of the output ends of multiple first outlet holes 7 and multiple second outlet holes 9 can increase the contact time between the gas and the stripping pipes, further increasing the heating efficiency of the device.

[0037] Meanwhile, a heating cover 4 is fixedly connected to the protective shell 2. The heating cover 4 is composed of a heat-conducting shell 41 and a heat-insulating shell 42. The heating cover 4 is equipped with an electric heating wire 5, which is existing technology and will not be described in detail here. When the electric heating wire 5 is working, the heat in the heating cover 4 can be transferred to the protective shell 2, and then the heat can be transferred to the stripping tower 1. At the same time, the heat-insulating shell 42 can prevent the heat from dissipating, thereby improving the resource utilization rate.

[0038] Meanwhile, a support column 10 is fixedly connected to the heating cover 4, and a circulation pump 11 is fixedly connected to one end of the support column 10. At the same time, an input pipe 12 is fixedly connected to the input end of the circulation pump 11, and one end of the input pipe 12 extends into the interior of the stripping tower 1. An output pipe 13 is fixedly connected to the output end of the circulation pump 11. When the circulation pump 11 is working, the steam in the stripping tower 1 can be drawn in by the circulation pump 11, and the steam can be discharged through the output pipe 13.

[0039] Meanwhile, multiple support rods 14 are fixedly connected to the side wall of the heating cover 4. One end of each support rod 14 is fixedly connected to the same water tank 15. The input end of the water tank 15 is fixedly connected to a water inlet pipe 16, and the output end of the water tank 15 is fixedly connected to a water outlet pipe 17. The water tank 15 can be filled with water, and the water inlet pipe 16 is connected to an external water pump, so that water with a certain temperature can enter the water inlet pipe 15. One end of the output pipe 13 extends into the water tank 15, so that steam can enter the water tank 15 and then be discharged, further increasing the moisture content of the steam, thereby enabling the steam to retain a certain amount of moisture.

[0040] Meanwhile, two bent rods 25 are fixedly connected to the water tank 15, and one end of the two bent rods 25 is connected to the same booster pump 26. The booster pump 26 can increase the pressure of steam. The air inlet end of the booster pump 26 is fixedly connected to the air inlet pipe 27, and one end of the air inlet pipe 27 is connected to the output end of the water tank 15. The output end of the booster pump 26 is fixedly connected to the air outlet pipe 28, and one end of the air outlet pipe 28 is connected to the heating cover 4.

[0041] Therefore, when the booster pump 26 is working, steam can be drawn from the water tank 15 into the booster pump 26, so that the steam with a certain pressure can enter the heating hood 4, thereby giving the steam a certain pressure. At the same time, the electric heating wire 5 in the heating hood 4 can work, further heating the steam.

[0042] The output end of the heating cover 4 is fixedly connected to a connecting pipe 39, and a temperature sensor 40 is provided on the connecting pipe 39. At the same time, a one-way valve 43 is provided on the connecting pipe 39, and one end of the connecting pipe 39 is connected to the steam pipe 3. Therefore, when the steam is heated, it can enter the steam pipe 3 from the connecting pipe 39, thereby enabling the steam to be recycled and further improving the resource utilization rate of the device.

[0043] Meanwhile, multiple first connecting rods 19 are fixedly connected to the inner wall of the water tank 15. One end of each of the multiple first connecting rods 19 is fixedly connected to the same bearing 20. A rotating rod 21 is provided through the bearing, and a fan blade 22 is fixedly connected to the rotating rod 21. The fan blade 22 is located in the air intake pipe 27.

[0044] It is particularly noteworthy that when the booster pump 26 is working, steam can be drawn out by the booster pump 26, which can cause the fan blade 22 to rotate, thereby causing the rotating rod 21 to rotate, and further causing the cleaning plate 23 to rotate.

[0045] Meanwhile, two limiting rings 24 are coaxially fixedly connected to the rotating rod 21, and the two limiting rings 24 are respectively located on the upper and lower sides of the fan blade 22. A cleaning plate 23 is fixedly connected to the rotating rod 21, and a cleaning brush is provided on the cleaning plate 23. The cleaning brush is in contact with the inner wall of the water tank 15. Therefore, when the rotating rod 21 rotates, the cleaning plate 23 can rotate, so that the inner wall of the water tank 15 can be cleaned. It is particularly noteworthy that the cleaning plate 23 is provided with a cleaning brush on its side wall, and the cleaning brush is a hard brush, which can improve the cleaning efficiency of the cleaning plate 23.

[0046] Meanwhile, a horizontal pipe is fixedly connected to the output end of the intake pipe 27, and a solenoid valve is provided on the horizontal pipe. At the same time, a processing cylinder 32 is fixedly connected to one end of the horizontal pipe, and a filter cylinder 33 is fixedly connected to the inner wall of the processing cylinder 32.

[0047] When the steam temperature is relatively high, the solenoid valve on the horizontal pipe can be activated, allowing external cold air to enter the intake pipe 27, thereby lowering the steam temperature and enabling the recovered steam to be used.

[0048] Furthermore, the output end of the water tank 15 is fixedly connected to the inlet pipe 29, and the inlet pipe 29 is equipped with a solenoid valve 30. The output end of the inlet pipe 29 is fixedly connected to the nozzle 31. One end of the inlet pipe 29 passes through the side wall of the treatment cylinder 32 and extends into the filter cylinder 33. The treatment cylinder 32 is provided with two symmetrical openings 34. The blocking assembly includes an electric slide rail 35 fixedly connected to the side wall of the treatment cylinder 32. A matching electric slider 36 is slidably connected to the electric slide rail 35. Two second connecting rods 37 are fixedly connected to the electric slider 36. One end of each of the two second connecting rods 37 is fixedly connected to a baffle 38. The two baffles 38 are respectively located on one side of the opening 34.

[0049] When the filter cartridge 33 needs cleaning, the operator can activate the solenoid valve on the inlet pipe 29 through the controller and simultaneously close the solenoid valve on the horizontal pipe. This allows steam from the water tank 15 to enter the filter cartridge 33, and the nozzle 31 can clean the impurities on the filter cartridge 33. At the same time, the operator can activate the electric slide rail 35 through the controller, which will move the electric slider 36 accordingly, thereby moving the baffle 38 and exposing the opening 34, allowing impurities to be discharged and enabling the filter cartridge 33 to be used normally.

[0050] In this invention, when the operator needs to use this device, the operator can first start the electric heating wire 5, the circulation pump 11 and the booster pump 26 through the controller. With the assistance of the circulation pump 11, the steam in the stripping tower 1 can be drawn into the water tank 15, which can be filled with water. The water inlet pipe 16 is connected to an external water pump, so that water with a certain temperature can enter the water pipe 15. One end of the outlet pipe 13 extends into the water tank 15, so that steam can enter the water tank 15 and then be discharged, further increasing the moisture content of the steam, thereby enabling the steam to maintain a certain moisture content.

[0051] Then, with the assistance of the booster pump 26, the steam is input into the heating hood 4 with a certain pressure. At the same time, the electric heating wire 5 in the heating hood 4 can work, which can further heat the steam. Therefore, after the steam is heated, it can enter the steam pipe 3 through the connecting pipe 39, so that the steam can be recycled and the resource utilization rate of the device can be further improved. At the same time, when the steam temperature is relatively high, the solenoid valve on the horizontal pipe can be activated, which can allow the external cold air source to enter the air inlet pipe 27, thereby reducing the temperature of the steam.

[0052] When the booster pump 26 is working, steam can be drawn out by the booster pump 26, which will cause the fan blade 22 to rotate, thereby causing the rotating rod 21 to rotate, and further causing the cleaning plate 23 to rotate. This will clean the inner wall of the water tank 15 and further prevent scale from adhering to the water tank 15.

[0053] The operator can activate the solenoid valve on the inlet pipe 29 via the controller, while simultaneously closing the solenoid valve on the horizontal pipe. This allows steam from the water tank 15 to enter the filter cartridge 33, and the nozzle 31 can clean the impurities on the filter cartridge 33. At the same time, the operator can activate the electric slide rail 35 via the controller, which will move the electric slider 36 accordingly, thereby moving the baffle 38 and exposing the opening 34, allowing impurities to be discharged to the outside, and further enabling the filter cartridge 33 to be used normally.

[0054] In this embodiment, the electrical connections involved, such as the heating wire, circulation pump and booster pump, as well as the solenoid valve, are all controlled and operated by an external controller and control buttons.

[0055] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0056] Secondly: The accompanying drawings of the embodiments disclosed in this invention only involve the structures involved in the embodiments disclosed in this invention. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this invention can be combined with each other.

[0057] In conclusion, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A urea synthesis stripping tower, comprising: Stripping tower (1); Its features The stripping tower (1) is surrounded by a protective shell (2). A steam pipe (3) runs through the stripping tower (1). The input end of the steam pipe (3) is connected to an external gas source. The output end of the steam pipe (3) is fixedly connected to a gas guiding assembly. The gas guiding assembly includes multiple first gas outlet pipes (6) and multiple second gas outlet pipes (8) fixedly connected to the output end of the steam pipe (3). The multiple first gas outlet pipes (6) and multiple second gas outlet pipes (8) are arranged around the steam pipe (3). The multiple first gas outlet pipes (6) and multiple second gas outlet pipes (8) are arranged in opposite directions to form a cross arrangement. The angle between the multiple first gas outlet pipes (6) and multiple second gas outlet pipes (8) and the steam pipe (3) is 45°-55°. Multiple first gas outlet holes (7) are opened at the output end of the multiple first gas outlet pipes (6), and multiple second gas outlet holes (9) are opened at the output end of the multiple second gas outlet pipes (8). The protective shell (2) is provided with a heating component around its outer periphery, which is used to heat the inside of the stripping tower (1); The urea synthesis stripping tower also includes an extraction assembly, which is used to extract the gas inside the stripping tower (1); the extraction assembly includes a support column (10) fixedly connected to the heating cover (4), one end of the support column (10) is fixedly connected to a circulation pump (11), the input end of the circulation pump (11) is fixedly connected to an input pipe (12), and one end of the input pipe (12) extends into the stripping tower (1), and the output end of the circulation pump (11) is fixedly connected to an output pipe (13). The urea synthesis stripping tower also includes a storage component; the storage component is connected to an external water source, and the output end of the extraction component extends into the storage component; the storage component includes multiple support rods (14) fixedly connected to the side wall of the heating cover (4), one end of the multiple support rods (14) is fixedly connected to a water tank (15), the input end of the water tank (15) is fixedly connected to a water inlet pipe (16), the output end of the water tank (15) is fixedly connected to a water outlet pipe (17), the bottom of the water tank (15) is fixedly connected to a discharge pipe (18), and one end of the output pipe (13) extends into the water tank (15); The storage component includes a rotating component, on which a cleaning component is connected, and the cleaning component is in contact with the inner wall of the storage component; the rotating component includes multiple first connecting rods (19) fixedly connected to the inner wall of the water tank (15), one end of each of the multiple first connecting rods (19) is fixedly connected to the same bearing (20), and a rotating rod (21) is provided through the bearing; the cleaning component includes a fan blade (22) fixedly connected to the rotating rod (21), two limiting rings (24) are coaxially fixedly connected to the rotating rod (21), and the two limiting rings (24) are respectively located on the upper and lower sides of the fan blade (22), a cleaning plate (23) is fixedly connected to the rotating rod (21), and a cleaning brush is provided on the cleaning plate (23), and the cleaning brush is in contact with the inner wall of the water tank (15); The storage component is connected to a pressurizing component, and one end of the pressurizing component is connected to the heating component. The storage component is connected to a conveying component. The pressurizing component includes two bent rods (25) fixedly connected to the water tank (15). One end of the two bent rods (25) is connected to the same booster pump (26). The air inlet end of the booster pump (26) is fixedly connected to an air inlet pipe (27), and one end of the air inlet pipe (27) is connected to the top of the water tank (15). The fan blade (22) is located in the air inlet pipe (27). The output end of the booster pump (26) is fixedly connected to an air outlet pipe (28), and one end of the air outlet pipe (28) is connected to the heating cover (4).

2. The urea synthesis stripping tower according to claim 1, characterized in that, The heating assembly includes a heating cover (4) fixedly connected to the protective shell (2). The heating cover (4) is composed of a heat-conducting shell (41) and a heat-insulating shell (42). The side wall of the heat-conducting shell (41) is in contact with the protective shell (2). The heat-insulating shell (42) is located on the side away from the protective shell (2) and in contact with the outside. The heating cover (4) is provided with multiple electric heating wires (5). A connecting pipe (39) is fixedly connected to the heating cover (4). The output end of the connecting pipe (39) is connected to the steam pipe (3). A temperature sensor (40) is provided on the connecting pipe (39). A one-way valve (43) is provided between the connecting pipe (39) and the steam pipe (3).

3. The urea synthesis stripping tower according to claim 2, characterized in that, The conveying assembly is connected to a blocking assembly; the conveying assembly includes an inlet pipe (29) fixedly connected to the output end of the water tank (15), the inlet pipe (29) is provided with a solenoid valve (30), the output end of the inlet pipe (29) is fixedly connected to a nozzle (31), the output end of the air inlet pipe (27) is fixedly connected to a processing cylinder (32), the inner side wall of the processing cylinder (32) is fixedly connected to a filter cylinder (33), one end of the inlet pipe (29) passes through the side wall of the processing cylinder (32) and extends into the filter cylinder (33), the processing cylinder (32) is provided with two symmetrical openings (34).

4. The urea synthesis stripping tower according to claim 3, characterized in that, The blocking assembly includes an electric slide rail (35) fixedly connected to the side wall of the processing cylinder (32), an electric slider (36) slidably connected to the electric slide rail (35), two second connecting rods (37) fixedly connected to the electric slider (36), and a baffle (38) fixedly connected to one end of each of the two second connecting rods (37), with the two baffles (38) respectively located on one side of the opening (34).

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