Primary tower for producing naphtha
By designing a primary distillation column structure with a rotating rod and a cleaning brush, and using a variable speed motor to drive the rotating rod to rotate and move up and down, the problem of inconvenient cleaning of the inner wall of the primary distillation column is solved, and the efficiency and lifespan of the primary distillation column are improved.
Patent Information
- Application Number
- CN202422306215.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-23
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2034-09-23
AI Technical Summary
In the existing technology, when naphtha feedstock is on the inner wall surface of the primary distillation tower, impurities will be adsorbed on the inner wall surface of the primary distillation tower. The existing technology is difficult to efficiently clean the naphtha feedstock adsorbed on the inner wall surface, which affects the performance of the primary distillation tower.
Design a primary distillation column structure including a rotating rod, a stirring rod, a cleaning rack, and a cleaning brush. The rotating rod is driven to rotate and move up and down by a variable speed motor, which drives the cleaning brush to clean the inner wall of the primary distillation column, and the cleaning is automated by using centrifugal force.
This improves the efficiency of the primary distillation column, reduces the frequency of cleaning the inner wall, and extends the service life of the primary distillation column.
Smart Images
Figure CN223646507U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of the primary distillation column of producing naphtha, especially relates to a primary distillation column of producing naphtha. BACKGROUND
[0002] Naphtha is one of petroleum products, also called chemical light oil or crude gasoline, is the light oil for chemical raw materials processed and produced from crude oil or other raw materials, and is mainly used as chemical raw materials. Naphtha is produced by distillation through a distillation column.
[0003] When the naphtha raw material is subjected to primary distillation through the primary distillation column, the naphtha raw material and the impurities inside can be adsorbed on the inner wall surface of the primary distillation column, and the primary distillation column needs to be cleaned frequently, so that the use effect of the primary distillation column is weakened.
[0004] Therefore, it is necessary to invent a primary distillation column for producing naphtha to solve the above problems. UTILITY MODEL CONTENT
[0005] In view of the above problems, the utility model provides a primary distillation column for producing naphtha to solve the problems in the above background technology.
[0006] To achieve the above purpose, the utility model provides the following technical scheme: a primary distillation column for producing naphtha, comprising a column body, a base is arranged at the bottom of the column body, a variable speed motor is arranged at the top of the column body, a feeding port and a slag outlet are arranged on one side of the column body respectively, a steam inlet and a discharge port are arranged on the other side of the column body respectively, a rotating rod is arranged inside the column body, and a rotating device is arranged between the rotating rod and the column body.
[0007] Stirring rods are arranged on both sides of the rotating rod, cleaning frames are arranged at both ends of the rotating rod, and extension devices are arranged between the cleaning frames and the rotating rod.
[0008] Further, the rotating device comprises a fixed screw rod, threads are formed on the surface of the fixed screw rod, a rotating sliding block is sleeved on one surface of the fixed screw rod, the threads on the surface of the rotating sliding block and the fixed screw rod are threadedly sleeved, the rotating sliding block is fixedly connected with the rotating rod, and a moving device is arranged inside the fixed screw rod.
[0009] Further, the moving device comprises a moving groove, a reciprocating screw rod is rotatably inserted into the moving groove, one end of the reciprocating screw rod extends to the outside through the moving groove, and the end of the reciprocating screw rod is fixedly connected with the output end of the variable speed motor, threads are formed on the surface of the reciprocating screw rod, and a moving sliding block is threadedly sleeved on one surface of the reciprocating screw rod.
[0010] Furthermore, the extension device includes an extension groove, an extension rod is movably inserted into the extension groove, one end of the extension rod is fixedly connected to the cleaning rack, and the other end of the extension rod is fixedly connected to a spring, one end of the spring being fixedly connected to the inner wall of the extension groove.
[0011] Furthermore, a cleaning brush is provided on one side of the cleaning rack, and one side of the cleaning brush is arc-shaped.
[0012] Furthermore, a groove is provided on one side of the movable slider, and the side of the rotating slider is located within the groove of the movable slider.
[0013] Furthermore, the two extension devices are symmetrically arranged at the center of the relative rotating rod.
[0014] The technical effects and advantages of this utility model are as follows:
[0015] 1. This utility model is equipped with a rotating rod. The variable speed motor drives the rotating rod to rotate and move up and down simultaneously through the rotating device. After the variable speed motor changes speed, it can change the rotation speed of the rotating rod. The device can clean the inner wall of the tower while stirring inside the tower, which helps to accelerate the initial distillation process of naphtha feedstock, reduce the number of times the inner wall of the tower needs to be cleaned, and improve the use effect of the tower.
[0016] 2. This utility model, by providing a rotating device, facilitates the rotation of the rotating rod while simultaneously satisfying its up-and-down movement. It is applicable to different operating speeds of variable speed motors, increases the rotational and up-and-down movement speeds of the rotating rod, and provides the necessary conditions for the operation of the rotating rod.
[0017] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention can be realized and obtained through the structures pointed out in the description and the accompanying drawings. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 A schematic diagram of the overall structure of an embodiment of this utility model is shown;
[0020] Figure 2 A front sectional view of an embodiment of the present invention is shown;
[0021] Figure 3 An embodiment of the present invention is shown. Figure 2 Enlarged view of part A;
[0022] Figure 4 A right sectional view of an embodiment of the present invention is shown;
[0023] In the diagram: 1. Tower body; 2. Base; 3. Variable speed motor; 4. Feed inlet; 5. Slag outlet; 6. Steam inlet; 7. Discharge outlet; 8. Rotating rod; 9. Stirring rod; 10. Cleaning rack; 11. Cleaning brush; 12. Fixed lead screw; 13. Rotating slider; 14. Moving groove; 15. Reciprocating lead screw; 16. Moving slider; 17. Extension groove; 18. Extension rod; 19. Spring. Detailed Implementation
[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0025] This invention provides a primary distillation column for producing naphtha, such as... Figures 1-4 As shown, the tower body includes a tower body 1, a base 2 at the bottom of the tower body 1, a variable speed motor 3 at the top of the tower body 1, a feed inlet 4 and a slag outlet 5 on one side of the tower body 1, a steam inlet 6 and a discharge outlet 7 on the other side of the tower body 1, a rotating rod 8 inside the tower body 1, and a rotating device between the rotating rod 8 and the tower body 1.
[0026] Stirring rods 9 are provided on both sides of the rotating rod 8, and cleaning racks 10 are provided at both ends of the rotating rod 8. An extension device is provided between the cleaning rack 10 and the rotating rod 8. The two extension devices are symmetrically arranged relative to the middle of the rotating rod 8. A cleaning brush 11 is provided on one side of the cleaning rack 10. One side of the cleaning brush 11 is arc-shaped.
[0027] In the naphtha production process, naphtha feedstock enters the tower body 1 through the feed inlet 4. After initial distillation in the tower body 1, the naphtha feedstock flows out through the discharge outlet 7. The variable speed motor 3 is in operation and drives the rotating rod 8 to rotate and move up and down through the rotating device. The rotation of the rotating rod 8 drives the stirring rod 9 and the cleaning rack 10 to rotate. The stirring rod 9 and the cleaning rack 10 stir the contents of the tower body 1, accelerating the initial distillation process of the naphtha feedstock in the tower body 1. After working for a period of time, the speed of the variable speed motor 3 is adjusted, the rotation speed of the rotating rod 8 increases, and the centrifugal force on the cleaning rack 10 increases. Since there is an extension device between the cleaning rack 10 and the rotating rod 8, the cleaning rack 10 moves outward, driving the cleaning brush 11 to move. The cleaning brush 11 can then clean the deposits on the inner wall of the tower body 1.
[0028] This utility model is equipped with a rotating rod 8. The variable speed motor 3 drives the rotating rod 8 to rotate and move up and down simultaneously through the rotating device. After the variable speed motor 3 changes speed, it can change the rotation speed of the rotating rod 8. The device can stir inside the tower body 1 while cleaning the inner wall of the tower body 1, which helps to accelerate the initial distillation process of naphtha feedstock, reduce the number of times the inner wall of the tower body 1 needs to be cleaned, and improve the use effect of the tower body 1.
[0029] like Figures 2-4 As shown, the rotating device includes a fixed lead screw 12 with threads on its surface. A rotating slider 13 is sleeved on one section of the fixed lead screw 12. The rotating slider 13 is threadedly sleeved on the threaded surface of the fixed lead screw 12. The rotating slider 13 is fixedly connected to the rotating rod 8. A moving device is provided inside the fixed lead screw 12. The moving device includes a moving groove 14. A reciprocating lead screw 15 is rotatably inserted into the moving groove 14. One end of the reciprocating lead screw 15 extends through the moving groove 14 to the outside, and the end of the reciprocating lead screw 15 is fixedly connected to the output end of the variable speed motor 3. The surface of the reciprocating lead screw 15 is threaded. A moving slider 16 is threadedly sleeved on one section of the reciprocating lead screw 15. A groove is provided on one side of the moving slider 16, and one side of the rotating slider 13 is located in the groove of the moving slider 16.
[0030] When the naphtha feedstock passes through the initial distillation of tower body 1, the variable speed motor 3 drives the reciprocating screw 15 to rotate in the moving groove 14. The rotation of the reciprocating screw 15 drives the moving slider 16 to move back and forth in the groove. Since one side of the rotating slider 13 is located in the groove of the moving slider 16, the movement of the moving slider 16 can drive the rotating slider 13 to move up and down. And because the rotating slider 13 is threadedly engaged with the threaded surface of the fixed screw 12, the rotating slider 13 rotates during the up and down movement. The rotation of the rotating slider 13 drives the rotating rod 8 to rotate, and the rotation of the rotating rod 8 drives the stirring rod 9 and the cleaning rack 10 to rotate.
[0031] This utility model, by providing a rotating device, facilitates the rotation of the rotating rod 8 while simultaneously satisfying its up-and-down movement. It is applicable to different operating speeds of the variable speed motor 3, increases the rotational and up-and-down movement speeds of the rotating rod 8, and provides the necessary conditions for the operation of the rotating rod 8.
[0032] like Figures 2-3 As shown, the extension device includes an extension groove 17, an extension rod 18 is movably inserted into the extension groove 17, one end of the extension rod 18 is fixedly connected to the cleaning rack 10, and the other end of the extension rod 18 is fixedly connected to a spring 19, one end of the spring 19 is fixedly connected to the inner wall of the extension groove 17.
[0033] When it is necessary to clean the inner wall of the tower body 1, the rotation speed of the variable speed motor 3 is adjusted. The variable speed motor 3 drives the rotating rod 8 to rotate faster through the rotating device. The centrifugal force on the cleaning frame 10 increases and it begins to move outward. The movement of the cleaning frame 10 causes the extension rod 18 to extend out of the extension groove 17. The spring 19 is stretched accordingly. The cleaning frame 10 drives the cleaning brush 11 to fit against the inner wall of the tower body 1. The cleaning brush 11 can clean the inner wall of the tower body 1. After the inner wall of the tower body 1 is cleaned, the speed of the variable speed motor 3 returns to its original state, the rotating rod 8 returns to its original rotation speed, the centrifugal force on the cleaning frame 10 is restored, the spring 19 resets and drives the extension rod 18 back into the extension groove 17. The reset of the extension rod 18 causes the cleaning frame 10 to reset, and the cleaning brush 11 returns to its original position.
[0034] This utility model, by providing an extension device, facilitates the movement of the cleaning rack 10 in both outward and retraction, providing the necessary conditions for the cleaning rack 10 to drive the cleaning brush 11 to clean the inner wall of the tower body 1. The device has a simple structure and movement principle, making it more practical.
[0035] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims
1. A primary distillation column for producing naphtha, comprising a column body (1), characterized in that: The tower body (1) is provided with a base (2) at the bottom and a variable speed motor (3) at the top. The tower body (1) is provided with a feed inlet (4) and a slag outlet (5) on one side and a steam inlet (6) and a discharge outlet (7) on the other side. The tower body (1) is provided with a rotating rod (8) inside and a rotating device is provided between the rotating rod (8) and the tower body (1). Stirring rods (9) are provided on both sides of the rotating rod (8), and cleaning racks (10) are provided at both ends of the rotating rod (8). An extension device is provided between the cleaning rack (10) and the rotating rod (8).
2. The primary distillation column for producing naphtha according to claim 1, characterized in that: The rotating device includes a fixed lead screw (12), the surface of which is threaded, and a rotating slider (13) is sleeved on one end of the fixed lead screw (12). The rotating slider (13) is threadedly sleeved on the threaded surface of the fixed lead screw (12). The rotating slider (13) is fixedly connected to the rotating rod (8). A moving device is provided inside the fixed lead screw (12).
3. The primary distillation column for producing naphtha according to claim 2, characterized in that: The moving device includes a moving groove (14), in which a reciprocating screw (15) is rotatably inserted. One end of the reciprocating screw (15) extends through the moving groove (14) to the outside, and the end of the reciprocating screw (15) is fixedly connected to the output end of the variable speed motor (3). The surface of the reciprocating screw (15) is threaded, and a moving slider (16) is threaded onto one section of the surface of the reciprocating screw (15).
4. The primary distillation column for producing naphtha according to claim 1, characterized in that: The extension device includes an extension groove (17), an extension rod (18) is movably inserted into the extension groove (17), one end of the extension rod (18) is fixedly connected to the cleaning rack (10), and the other end of the extension rod (18) is fixedly connected to a spring (19), one end of the spring (19) is fixedly connected to the inner wall of the extension groove (17).
5. The primary distillation column for producing naphtha according to claim 1, characterized in that: A cleaning brush (11) is provided on one side of the cleaning rack (10), and one side of the cleaning brush (11) is arc-shaped.
6. The primary distillation column for producing naphtha according to claim 3, characterized in that: The movable slider (16) has a groove on one side, and the rotating slider (13) is located in the groove of the movable slider (16) on one side.
7. The primary distillation column for producing naphtha according to claim 1, characterized in that: The two extension devices are symmetrically arranged at the middle of the relative rotating rod (8).