Self-cleaning device of rectifying tower
By designing a sliding liquid receiving plate and guide rail structure in the distillation column, combined with flushing equipment, the problem of crystal and impurity accumulation in the distillation column was solved, automatic cleaning was achieved, operating efficiency and product quality were improved, and maintenance costs were reduced.
Patent Information
- Application Number
- CN202520156383.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-23
- Publication Date
- 2026-01-20
- Estimated Expiration
- 2035-01-23
AI Technical Summary
During long-term operation, existing distillation columns tend to accumulate crystals and impurities on the inner walls and trays, leading to decreased separation efficiency, equipment blockage, and affecting normal operation and product quality. Furthermore, existing cleaning methods are time-consuming, labor-intensive, and pose safety hazards.
A self-cleaning device was designed, including a sliding liquid receiving plate and a guide rail structure. Automatic cleaning is achieved through the coordinated movement of the bubble cap and the sieve holes. Combined with a rinsing device, internal cleaning is performed to ensure that the sieve holes are not clogged.
It enables automatic cleaning of the distillation column during operation, improving equipment efficiency and product quality, reducing downtime, lowering maintenance costs, and increasing equipment utilization and production efficiency.
Smart Images
Figure CN223810830U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of distillation technology, specifically to a self-cleaning device for a distillation column. Background Technology
[0002] Industrially produced chemical products, synthesized through synthetic methods, often have low purity and contain many impurities. To obtain high-purity chemical products, distillation purification is necessary. However, during distillation, some chemical products exhibit high melting points and are prone to crystallization, leading to easy crystallization within the distillation column. Over long-term operation, crystals and impurities easily accumulate on the column walls and trays. These substances reduce the separation efficiency of the trays, increase pressure drop, and can even cause tray blockage, severely impacting the normal operation of the distillation column and product quality. Currently, cleaning distillation columns typically requires manual operation after shutdown, which is not only time-consuming and labor-intensive but also poses safety hazards, increases equipment downtime, and reduces production efficiency. Utility Model Content
[0003] The purpose of this utility model is to provide a self-cleaning device for a distillation column, which can automatically clean the distillation column during operation, effectively remove impurities inside the column, improve the operating efficiency and product quality of the distillation column, and reduce equipment downtime. To achieve the above objective, this application provides the following technical solution: A self-cleaning device for a distillation column, comprising:
[0004] The distillation column body has multiple horizontally placed trays on its inner wall, and multiple sieve holes are evenly distributed on the trays;
[0005] Liquid receiving plate: Each tray is provided with a liquid receiving plate below it. The liquid receiving plate is provided with a metal tube corresponding to the sieve hole one by one. The metal tube passes through the sieve hole and is connected to a bubble cap.
[0006] A guide rod is provided along the axial direction of the distillation column body, passing through each of the trays and the liquid receiving plate, connecting them in series. The guide rod is connected to the liquid receiving plate by a sliding fit to ensure that the liquid receiving plate can slide smoothly along the guide rod.
[0007] A chute is formed on the side wall of the distillation column body and corresponds to the position of the liquid receiving plate. The length direction of the chute is parallel to the axial direction of the distillation column body.
[0008] A connecting plate is fixedly mounted on the liquid receiving plate and extends outward from the sliding groove. The connecting plate can slide up and down in the sliding groove. When the connecting plate slides up and down, it can drive the liquid receiving plate to slide along the guide rod, so that the bubble can enter and exit the sieve hole, thereby cleaning the sediment in the sieve hole.
[0009] A hinged rod is hinged to the sidewall of the rectifying tower body, and a plurality of U-shaped limiting plates are arranged on the hinged rod in a length direction, each of the U-shaped limiting plates corresponds to a position of the connecting plate, the U-shaped limiting plate can be sleeved on the connecting plate by rotating the hinged rod, the U-shaped limiting plate is fixed in a vertical direction, and the stability of the liquid receiving plate is ensured when the rectifying tower works normally.
[0010] Preferably, the flushing device comprises a water tank, a spray pipe, a valve and a spray head, the water tank is arranged on the sidewall of the rectifying tower body, the spray pipe is connected to the water tank and extends into the rectifying tower body, a plurality of spray heads are arranged on the spray pipe which extends into the rectifying tower body, and the valve is arranged on the spray pipe to control the water flow of the flushing device, so that the flushing function of the rectifying tower is realized.
[0011] Preferably, the diameter of the bubble cap is matched with the diameter of the sieve hole.
[0012] Preferably, a guide rod is arranged at each of the four vertexes of the rectangular structure of the liquid receiving plate, each of the guide rods extends along the axial direction of the rectifying tower body and penetrates through the corresponding tower tray and the liquid receiving plate, so that the liquid receiving plate can smoothly slide along the guide rods.
[0013] Preferably, the axis of the guide rod is perpendicular to the diagonal line of the liquid receiving plate, so that the sliding of the liquid receiving plate is stably guided.
[0014] Preferably, the blocking plate is arranged on the connecting plate and located in the rectifying tower body, and the blocking plate moves synchronously with the connecting plate when the connecting plate slides in the sliding groove, so that the sliding groove is closed to prevent the material or gas in the rectifying tower from leaking through the sliding groove.
[0015] Preferably, the blocking plate is arranged on the upper part and the lower part of the connecting plate, and the size and shape of the blocking plate are matched with the opening of the sliding groove, so that the blocking plate tightly fits the sliding groove and realizes good sealing effect.
[0016] Compared with the prior art, the present application has the following advantages:
[0017] By setting the slidable liquid receiving plate and the guide rail structure matched with the liquid receiving plate, the automatic cleaning function of the liquid receiving plate in the operation process of the rectifying tower is realized. The one-to-one correspondence of the bubble cap and the sieve plate and the relative motion of the bubble cap and the sieve hole effectively remove the deposits in the sieve hole, prevent the sieve hole from being blocked, and improve the operation efficiency and service life of the rectifying tower. Meanwhile, this design avoids the production loss caused by frequent shutdown and cleaning, and improves the production efficiency. The self-cleaning device has the advantages of simple structure, convenient operation, no need of additional power equipment, realization of self-cleaning by mechanical force generated by the medium flow and the movement of the liquid receiving plate, energy saving and environmental protection. In addition, since the cleaning process is synchronized with the production process, the normal rectifying operation is not affected, and the equipment utilization and the production efficiency are greatly improved. In summary, the automatic cleaning of the chemical product rectifying tower in the operation process is realized through the ingenious structure design and function integration of the self-cleaning device, the stability of the equipment operation and the quality of the product are improved, the maintenance cost is reduced, and the economic benefit and the social benefit are remarkable. It is an effective improvement and innovation of the existing rectifying equipment technology. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 A perspective view of a self-cleaning device of a rectifying tower according to an embodiment of the present application is shown in the figure.
[0019] Figure 2 A perspective view of a self-cleaning device of a rectifying tower according to an embodiment of the present application is shown in the figure.
[0020] In the figure: 1, rectifying tower body; 2, tower tray; 3, sieve hole; 4, liquid receiving plate; 5, metal pipe; 6, bubble cap; 7, guide rod; 8, sliding groove; 9, connecting plate; 10, hinged rod; 11, U-shaped limiting plate; 12, flushing equipment; 13, water tank; 14, spray pipe; 15, valve; 16, spray head; 17, baffle. DETAILED DESCRIPTION
[0021] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.
[0022] It should be noted that, in the description of the present application, the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.
[0023] In addition, it should be understood that, for the convenience of description, the sizes of various components shown in the drawings are not drawn in accordance with the actual proportional relationship, for example: the thickness or width of certain layers can be exaggerated relative to other layers.
[0024] It should be noted that similar reference numbers and letters represent similar items in the following drawings, and therefore, once an item is defined or described in one drawing, it will not need to be further specifically discussed and described in the description of subsequent drawings.
[0025] In order to solve the technical problems in the background art, as shown in Figure 1 The present application provides a technical solution: a self-cleaning device for a rectifying tower, characterized by:
[0026] The rectifying tower body 1 is a vertically placed cylindrical structure, and the inner wall is provided with a plurality of horizontally placed trays 2. A plurality of screen holes 3 are uniformly distributed on each tray 2 to ensure that the liquid and gas can flow smoothly. A liquid receiving plate 4 is arranged below each tray 2, and the shape of the liquid receiving plate 4 matches the tray 2, which is rectangular. The liquid receiving plate 4 is provided with a metal pipe 5 corresponding to the screen hole 3 on the tray 2, and the diameter of the metal pipe 5 is smaller than that of the screen hole 3, so that the metal pipe 5 can smoothly pass through the screen hole 3. The other end of the metal pipe 5 is connected with a bubble cap 6, and the shape of the bubble cap 6 is circular, and the material is stainless steel with high temperature resistance and corrosion resistance. The guide rod 7 is arranged along the axial direction of the rectifying tower body 1 and penetrates through each tray 2 and the liquid receiving plate 4, thereby connecting them in series. The connection mode of the guide rod 7 and the liquid receiving plate 4 is sliding fit, which ensures that the liquid receiving plate 4 can slide smoothly along the guide rod 7. The material of the guide rod 7 is high-strength stainless steel. The sliding groove 8 is opened in the side wall of the rectifying tower body 1 and corresponds to the position of the liquid receiving plate 4. The length direction of the sliding groove 8 is parallel to the axial direction of the rectifying tower body 1, which ensures that the connecting plate 9 can slide freely in the sliding groove 8. The connecting plate 9 is fixedly arranged on the liquid receiving plate 4 and extends out of the sliding groove 8. The shape of the connecting plate 9 is rectangular, and the width is slightly smaller than the width of the sliding groove 8. The connecting plate 9 can slide up and down in the sliding groove 8, and when the connecting plate 9 slides up and down, it can drive the liquid receiving plate 4 to slide along the guide rod 7, so that the bubble cap 6 can enter and exit the screen hole 3, thereby cleaning the deposits in the screen hole 3. The hinge rod 10 is hinged to the side wall of the rectifying tower body 1, and a plurality of U-shaped limiting plates 11 are arranged on the hinge rod 10 along the length direction. The number of U-shaped limiting plates 11 corresponds to the number of connecting plates 9, and the size of each U-shaped limiting plate 11 is matched with the size of the connecting plate 9, which can be sleeved on the connecting plate 9. By rotating the hinge rod 10, the U-shaped limiting plate 11 can be sleeved on the connecting plate 9, and the liquid receiving plate 4 is fixed in the vertical direction to ensure the stability of the liquid receiving plate 4 when the rectifying tower is working normally.
[0027] When cleaning is needed, the hinge rod 10 is rotated to loosen the U-shaped limiting plate 11 from the connecting plate 9. By pushing the connecting plate 9 to slide downward along the sliding groove 8, the liquid receiving plate 4 is driven to slide downward along the guide rod 7, and the bubble cap 6 falls out of the screen hole 3. After repeatedly pushing the connecting plate 9 to slide along the sliding groove 8, the bubble cap 6 reenters the screen hole 3 and returns to the initial position. The hinge rod 10 is rotated again to make the U-shaped limiting plate 11 sleeved on the connecting plate 9, and the liquid receiving plate 4 is fixed in the vertical direction to restore the normal operating state of the rectifying tower.
[0028] It should be noted that the device also includes a flushing device 12, which includes a water tank 13, a spray pipe 14, a valve 15 and a spray head 16. The water tank 13 is arranged on the side wall of the rectifying tower body 1, and the specific position is shown in the figure. The water tank 13 is made of stainless steel, which has good corrosion resistance and durability. The volume of the water tank 13 is designed according to the size of the rectifying tower body 1 and the flushing demand to ensure sufficient flushing water. The upper part of the water tank 13 is provided with a water inlet for supplementing the water source; the lower part is provided with a water outlet for discharging the remaining water. One end of the spray pipe 14 is connected to the water tank 13, and the other end is arranged in the rectifying tower body 1. The other end is provided with a plurality of spray heads 16. The number and position of the spray heads 16 are reasonably arranged according to the distribution of the tray 2 and the liquid receiving plate 4 to ensure that the tray 2 and the screen hole 3 can be fully covered. The valve 15 is installed on the spray pipe 14 to control the water flow of the flushing device 12. The opening of the valve 15 can be adjusted to control the flow and pressure of the spray water to ensure the flushing effect.
[0029] It should be noted that the diameter of the bubble cap 6 is slightly smaller than the diameter of the screen hole 3 to ensure that the bubble cap 6 can smoothly enter and exit the screen hole 3. Specifically, the diameter of the bubble cap 6 is 1-2 mm smaller than the diameter of the screen hole 3. For example, if the diameter of the screen hole 3 is 30 mm, the diameter of the bubble cap 6 can be designed as 28-29 mm.
[0030] It should be noted that at the four vertex positions of the rectangular structure of the liquid receiving plate 4, a guide rod 7 is arranged. Specifically, the liquid receiving plate 4 is in a rectangular structure, and a guide rod 7 is arranged at each of the four corners to ensure that the liquid receiving plate 4 remains stable during sliding. Each guide rod 7 extends along the axial direction of the rectifying tower body 1, i.e. the guide rod 7 extends from the top to the bottom of the rectifying tower body 1, penetrating through each layer of tray 2 and liquid receiving plate 4. The guide rod 7 penetrates through the corresponding tray 2 and liquid receiving plate 4, connecting them in series. The connection between the guide rod 7 and the liquid receiving plate 4 is a sliding fit, ensuring that the liquid receiving plate 4 can slide smoothly along the guide rod 7. The liquid receiving plate 4 is matched with the sliding groove 8 through the connecting plate 9, and the connecting plate 9 can slide up and down in the sliding groove 8. When the connecting plate 9 slides up and down, it drives the liquid receiving plate 4 to slide along the guide rod 7, so that the bubble cap 6 can enter and exit the screen hole 3, thereby cleaning the deposits in the screen hole 3.
[0031] It should be noted that the axis of the guide rod 7 is perpendicular to the diagonal of the liquid receiving plate 4. This design ensures that the liquid receiving plate 4 remains stable during sliding and does not tilt or deviate. Specifically, the diagonal of the liquid receiving plate 4 forms a 90-degree angle with the axis of the guide rod 7, thereby providing a stable guide for the sliding of the liquid receiving plate 4.
[0032] It is worth pointing out that the baffle 17 is fixedly arranged on the connecting plate 9 and located inside the rectifying tower body 1 corresponding to the position of the sliding groove 8. The shape and size of the baffle 17 are designed to ensure that it can closely fit the sliding groove 8 and form a good sealing effect. The material of the baffle 17 is stainless steel that is resistant to high temperature and corrosion, so as to ensure its stability and durability in high temperature and corrosive environment. When the connecting plate 9 slides in the sliding groove 8, the baffle 17 can move synchronously with the connecting plate 9, thereby forming a closure at the sliding groove 8. This design prevents the leakage of materials or gases inside the rectifying tower through the sliding groove 8, ensuring the sealing and safety of the rectifying tower. The edges of the baffle 17 can be designed as slightly convex sealing strips to further enhance the sealing effect. The material of the sealing strips can be high-temperature-resistant rubber or silicone.
[0033] It should be noted that the baffles 17 are arranged on the upper and lower parts of the connecting plate 9, respectively. Specifically, one baffle 17 is arranged on each of the upper and lower parts of the connecting plate 9, ensuring that the upper and lower openings of the sliding groove 8 are always sealed during the entire sliding process of the connecting plate 9. The size and shape of the baffle 17 are adapted to the opening of the sliding groove 8. Specifically, the width and height of the baffle 17 should be slightly larger than those of the sliding groove 8, so as to ensure that the baffle 17 can seal the sliding groove 8. When the connecting plate 9 slides in the sliding groove 8, the baffle 17 can move synchronously with the connecting plate 9, thereby forming a closure at the upper and lower openings of the sliding groove 8. This design prevents the leakage of materials or gases inside the rectifying tower through the sliding groove 8, ensuring the sealing and safety of the rectifying tower.
[0034] Although the embodiments of the present application have been shown and described, it is understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A self-cleaning device for a rectification column, characterized in that, Include: Rectifying tower body (1), the inner wall is equipped with multiple horizontal tower tray (2), the tower tray (2) is uniformly distributed with multiple screen holes (3); Liquid receiving plate (4), each layer of the tower tray (2) is provided with the liquid receiving plate (4), the liquid receiving plate (4) is provided with a metal pipe (5) corresponding to the screen hole (3), the metal pipe (5) is connected with the bubble cap (6) after passing through the screen hole (3); Guide rod (7), the guide rod (7) is arranged along the axis of the rectifying tower body (1), and penetrates each tower tray (2) and the liquid receiving plate (4), which are connected in series, the connection mode of the guide rod (7) and the liquid receiving plate (4) is sliding fit, which ensures that the liquid receiving plate (4) can slide smoothly along the guide rod (7); Chute (8), the chute (8) is opened in the side wall of the rectifying tower body (1), and corresponds to the position of the liquid receiving plate (4), the length direction of the chute (8) is parallel to the axial direction of the rectifying tower body (1);The connecting plate (9) is fixedly arranged on the liquid receiving plate (4) and extends outwardly from the chute (8), the connecting plate (9) can slide up and down in the chute (8), when the connecting plate (9) slides up and down, the liquid receiving plate (4) can be driven to slide along the guide rod (7), so that the bubble cap (6) can enter and exit the screen hole (3), thereby cleaning the deposits in the screen hole (3); Hinged rod (10), the hinged rod (10) is hinged to the side wall of the rectifying tower body (1), and a plurality of U-shaped limiting plates (11) are arranged on the hinged rod (10) along the length direction, each U-shaped limiting plate (11) corresponds to the position of the connecting plate (9), by rotating the hinged rod (10), the U-shaped limiting plate (11) can be sleeved on the connecting plate (9), the liquid receiving plate (4) is fixed in the vertical direction, so as to ensure the stability of the liquid receiving plate (4) during normal operation of the rectifying tower.
2. The self-cleaning device of a rectification column according to claim 1, characterized in that, It also includes a flushing device (12), the flushing device (12) includes a water tank (13), a spray pipe (14), a valve (15) and a spray head (16), the water tank (13) is arranged on the side wall of the rectifying tower body (1), the spray pipe (14) is connected from the water tank (13), and penetrates into the rectifying tower body (1), a plurality of spray heads (16) are uniformly arranged on the part of the spray pipe (14) penetrating into the rectifying tower body (1), the valve (15) is installed on the spray pipe (14), which is used for controlling the water flow of the flushing device (12), so as to realize the flushing function of the rectifying tower.
3. The self-cleaning device of a rectification column according to claim 2, characterized in that, The diameter of the bubble cap (6) is matched with that of the screen hole (3).
4. The self-cleaning device of a rectification column according to claim 1, characterized in that, In the four vertex positions of the rectangular structure of the liquid receiving plate (4), each of the guide rods (7) extends along the axial direction of the rectifying tower body (1) and penetrates through the corresponding tower tray (2) and the liquid receiving plate (4), which are connected in series, to ensure that the liquid receiving plate (4) can slide smoothly along the guide rod (7).
5. The self-cleaning device of a rectification column according to claim 4, characterized in that The axis of the guide rod (7) is perpendicular to the diagonal of the liquid receiving plate (4), thereby providing stable guiding for the sliding of the liquid receiving plate (4).
6. The self-cleaning device of a rectification column according to claim 1, characterized by Further comprising a baffle (17) fixedly arranged on the connecting plate (9) and located inside the rectifying tower body (1) and corresponding to the position of the sliding groove (8), when the connecting plate (9) slides in the sliding groove (8), the baffle (17) can move synchronously with the connecting plate (9), thereby forming a closure at the sliding groove (8) to prevent the material or gas inside the rectifying tower from leaking through the sliding groove (8).
7. The self-cleaning device of a rectification column according to claim 6, characterized in that The baffle (17) is arranged on the upper part and the lower part of the connecting plate (9) respectively, and the size and shape of the baffle (17) are matched with the opening of the sliding groove (8), thereby ensuring that the baffle (17) can tightly fit the sliding groove (8) and achieve a good sealing effect.