Rectifying tower for chemical production

Abstract

The utility model belongs to the technical field of rectifying towers, and particularly relates to a rectifying tower for chemical production, which comprises a tower body, a tower plate is fixedly connected to the inner wall of the tower body, capillary through holes are formed in the outer wall of the tower plate, and an overflow plate is fixedly connected to the edge of the top end of the tower plate. An overflow plate is fixedly connected to the top end of the tower body, a flow guide plate is fixedly connected to the position, located below the overflow plate, of the bottom end of the tower plate, a working motor is fixedly connected to the top end of the tower body, and a rotating shaft is fixedly connected to the output end of the working motor. The rotary main plate rotates to drive the telescopic auxiliary plate to overcome the elastic force of the working spring to slide along the inner wall of the rotary main plate, and meanwhile, the rotary main plate drives the cleaning brush at the bottom end of the telescopic auxiliary plate to slide along the outer wall of the tower plate to clean scale on the outer wall of the capillary through hole, so that the situation that the contact area of steam and saturated liquid is reduced due to blockage of the capillary through hole is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of distillation towers, in particular to a distillation tower for chemical production. Background Art

[0002] A distillation tower is a tower-type gas-liquid contact device for distillation. By utilizing the different volatilities of the components in the mixture, that is, the different vapor pressures of the components at the same temperature, the light components (low-boiling substances) in the liquid phase are transferred to the gas phase, and the heavy components (high-boiling substances) in the gas phase are transferred to the liquid phase, thereby achieving the purpose of separation. The distillation tower is also a mass transfer and heat transfer device that is widely used in petrochemical production.

[0003] For example, a Chinese patent with publication number CN210521819U discloses a plate-type distillation tower for chemical production, including a tower body, a condensing mechanism and a reboiling mechanism. By installing an insulation plate, the lower end of the insulation plate is higher than the upper end of the heating plate. The insulation plate can not only better maintain the internal temperature stability, but also ensure that the interior of the distillation tower is not affected by the external high temperature, greatly improving the flexibility and practicality of the device; a heating plate is installed at the bottom of the tower shell, combined with the insulation plate, so that the utilization rate of the heating plate is greatly improved, thereby reducing production costs; through the installation of a liquid head, a liquid spraying auxiliary pipe, a first nozzle and a second nozzle, during distillation, the gas and liquid can be evenly contacted through the tower plate, thereby improving the distillation effect; the first sealing thread groove matches the first sealing thread, and the second sealing thread groove matches the second sealing thread, which is not only convenient for disassembly and cleaning, but also for compounds that do not require spraying of feed liquid, only the feed main pipe can be used directly, greatly improving the practicality of the distillation tower.

[0004] When the existing chemical production distillation tower is used, scale will appear at the contact part between the gas phase and the liquid phase after long-term use, and the capillary pores will be blocked, resulting in a decrease in the contact area between the steam and the saturated liquid. In view of this, we propose a chemical production distillation tower. Utility Model Content

[0005] The utility model aims to provide a distillation tower for chemical production to solve the problem of capillary pore blockage in the above-mentioned background technology, which leads to a decrease in the contact area between steam and saturated liquid.

[0006] In view of this, the utility model provides a distillation tower for chemical production, comprising a tower body, the inner wall of the tower body is fixedly connected to a tower plate, the outer wall of the tower plate is provided with capillary through holes, the top edge of the tower plate is fixedly connected to an overflow plate, the bottom end of the tower plate is located below the overflow plate and is fixedly connected to a guide plate, the top of the tower body is fixedly connected to a working motor, the output end of the working motor is fixedly connected to a rotating shaft, the outer wall of the rotating shaft is fixedly connected to a rotating main board screwed to the top of the tower plate, the inner wall of the rotating main board is fixedly connected to a working spring, one end of the working spring is fixedly connected to a telescopic sub-plate slidably connected to the inner wall of the rotating main board, and the bottom ends of the rotating main board and the telescopic sub-plate are both provided with cleaning brushes.

[0007] In the present technical solution, the working motor drives the rotating shaft to rotate, and the rotation of the rotating shaft drives the two groups of rotating main boards to rotate synchronously. The rotation of the rotating main board drives the telescopic sub-plate to overcome the elastic force of the working spring and slide along the inner wall of the rotating main board. At the same time, the rotating main board drives the cleaning brush at the bottom end of the telescopic sub-plate to slide along the outer wall of the tower plate to clean the scale on the outer wall of the capillary hole to avoid clogging of the capillary hole and causing a decrease in the contact area between the steam and the saturated liquid.

[0008] In the above technical solution, further, the tower plate has a fan-shaped shape, and the capillary holes are evenly distributed along the outer wall of the tower plate.

[0009] In the technical solution, by providing fan-shaped tower plates and equidistantly distributed capillary holes along the tower plates, it is beneficial to increase the contact area between steam and saturated liquid.

[0010] In the above technical solution, further, the tower plates are provided in six groups, the rotating main boards are provided in two groups, and the two groups of the rotating main boards are symmetrical about the rotating shaft.

[0011] In the present technical solution, the rotation of the rotating shaft drives the two sets of rotating main boards to rotate synchronously. By providing two sets of rotating main boards, it is beneficial to improve the cleaning efficiency of scale on the outer wall of the capillary through hole.

[0012] In the above technical solution, further, the telescopic sub-plate forms a telescopic structure with the rotating main plate through a working spring.

[0013] In this technical solution, the rotating main board drives the telescopic sub-plate to overcome the elastic force of the working spring and slide along the inner wall of the rotating main board. At the same time, the rotating main board drives the cleaning brush at the bottom end of the telescopic sub-plate to slide along the outer wall of the tower plate to clean the scale on the outer wall of the capillary through hole.

[0014] In the above technical scheme, further, an air inlet is provided on the outer wall of the tower body, a drain port is provided on one side of the air inlet, a liquid inlet is provided on the outer wall of the tower body above the air inlet, an exhaust port is provided on the outer wall of the tower body on one side of the liquid inlet, a monitoring frame is fixedly connected to the outer wall of the tower body on one side of the tower plate, tempered glass is fixedly connected to the outer wall of the monitoring frame, a handle is screwed on the outer wall of the tempered glass, one end of the handle is fixedly connected to a connecting column penetrating the outer wall of the tempered glass, one end of the connecting column is fixedly connected to a rotating plate, and a scraper is provided at the connecting portion between the rotating plate and the tempered glass.

[0015] In this technical solution, the staff turns the handle, and the rotation of the handle drives the rotating plate to rotate through the connecting column. The rotation of the rotating plate drives the scraper to slide along the outer wall of the tempered glass, scraping off the water vapor attached to the outer wall of the tempered glass, making it easier for the staff to clearly monitor the reaction inside the tower.

[0016] In the above technical solution, further, the tempered glass is provided in five groups, and the five groups of tempered glass are staggeredly distributed with the six groups of tower plates.

[0017] In this technical solution, by providing five groups of tempered glass, it is beneficial to fully monitor the reaction inside the tower.

[0018] In the above technical solution, further, the rotating plate forms a rotating structure with the tempered glass through the handle and the connecting column, and the length of the rotating plate is equal to the diameter of the tempered glass.

[0019] In this technical solution, the handle rotates through the connecting column to drive the rotating plate to rotate, and the rotation of the rotating plate drives the scraper to slide along the outer wall of the tempered glass to scrape off the water vapor attached to the outer wall of the tempered glass, making it easier for the staff to clearly monitor the reaction inside the tower.

[0020] The beneficial effects of the utility model are:

[0021] 1. The distillation tower for chemical production is equipped with tempered glass and scrapers. The staff turns the handle, and the rotation of the handle drives the rotating plate to rotate through the connecting column. The rotation of the rotating plate drives the scraper to slide along the outer wall of the tempered glass to scrape off the water vapor attached to the outer wall of the tempered glass, so that the staff can clearly monitor the reaction inside the tower.

[0022] 2. The distillation tower for chemical production is provided with a rotating main plate and a telescopic sub-plate. The rotation of the rotating shaft drives the two sets of rotating main plates to rotate synchronously. The rotation of the rotating main plate drives the telescopic sub-plate to overcome the elastic force of the working spring and slide along the inner wall of the rotating main plate. At the same time, the rotating main plate drives the cleaning brush at the bottom end of the telescopic sub-plate to slide along the outer wall of the tower plate to clean the scale on the outer wall of the capillary through hole, so as to avoid clogging of the capillary through hole and causing a decrease in the contact area between the steam and the saturated liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 It is a schematic diagram of the overall cross-sectional structure of the utility model;

[0025] Figure 3 This is a schematic diagram of the cross-sectional structure of the tower plate of the utility model;

[0026] Figure 4 This is a schematic diagram of the cross-sectional structure of the monitoring frame of the utility model.

[0027] The symbols in the figure are:

[0028] 1. Tower body; 2. Tower plate; 3. Capillary through hole; 4. Overflow plate; 5. Guide plate; 6. Working motor; 7. Rotating shaft; 8. Rotating main plate; 9. Working spring; 10. Telescopic sub-plate; 11. Cleaning brush; 12. Air inlet; 13. Drain port; 14. Liquid inlet; 15. Exhaust port; 16. Monitoring frame; 17. Tempered glass; 18. Handle; 19. Connecting column; 20. Rotating plate; 21. Scraper. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0030] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0031] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0032] It should be noted that, in the description of the present application, the orientation or positional relationship indicated by terms such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Unless otherwise stated, these orientation words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present application; the orientation words "inside and outside" refer to the inside and outside relative to the contour of each component itself.

[0033] It should be noted that, in the present application, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be noted that the scope of the method and device in the embodiment of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0034] Embodiment 1:

[0035] See also Figure 1 - Figure 4As shown, the present embodiment provides a distillation tower for chemical production, comprising a tower body 1, an inner wall of the tower body 1 is fixedly connected with a tower plate 2, an outer wall of the tower plate 2 is provided with a capillary through hole 3, the top edge of the tower plate 2 is fixedly connected with an overflow plate 4, the bottom end of the tower plate 2 is located below the overflow plate 4 and is fixedly connected with a guide plate 5, the top of the tower body 1 is fixedly connected with a working motor 6, the output end of the working motor 6 is fixedly connected with a rotating shaft 7, the outer wall of the rotating shaft 7 is fixedly connected with a rotating main board 8 screwed to the top of the tower plate 2, the inner wall of the rotating main board 8 is fixedly connected with a working spring 9, one end of the working spring 9 is fixedly connected with a telescopic sub-plate 10 slidably connected to the inner wall of the rotating main board 8, and the bottom ends of the rotating main board 8 and the telescopic sub-plate 10 are both provided with a cleaning brush 11.

[0036] Among them, the working motor 6 drives the rotating shaft 7 to rotate, and the rotation of the rotating shaft 7 drives the two groups of rotating main boards 8 to rotate synchronously. The rotation of the rotating main board 8 drives the telescopic sub-plate 10 to overcome the elastic force of the working spring 9 and slide along the inner wall of the rotating main board 8. At the same time, the rotating main board 8 drives the cleaning brush 11 at the bottom end of the telescopic sub-plate 10 to slide along the outer wall of the tower plate 2 to clean the scale on the outer wall of the capillary through hole 3 to avoid clogging of the capillary through hole 3 and causing a decrease in the contact area between the steam and the saturated liquid.

[0037] Embodiment 2:

[0038] This embodiment provides a distillation tower for chemical production. In addition to the technical solutions of the above embodiments, it also has the following technical features: the tower plate 2 is fan-shaped, and the capillary holes 3 are evenly distributed along the outer wall of the tower plate 2.

[0039] The arrangement of the fan-shaped tower plate 2 and the equally spaced capillary holes 3 along the tower plate 2 is beneficial for increasing the contact area between the steam and the saturated liquid.

[0040] Embodiment 3:

[0041] This embodiment provides a distillation tower for chemical production. In addition to the technical solutions of the above embodiments, it also has the following technical features: six groups of tower plates 2 are provided, two groups of rotating main boards 8 are provided, and the two groups of rotating main boards 8 are symmetrical about the rotating shaft 7.

[0042] The rotation of the rotating shaft 7 drives the two sets of rotating main boards 8 to rotate synchronously. The two sets of rotating main boards 8 are provided to improve the cleaning efficiency of scale on the outer wall of the capillary through hole 3 .

[0043] Embodiment 4:

[0044] This embodiment provides a distillation tower for chemical production. In addition to the technical solutions of the above embodiments, it also has the following technical features: the telescopic sub-plate 10 forms a telescopic structure with the rotating main plate 8 through the working spring 9.

[0045] Among them, the rotating main board 8 drives the telescopic sub-plate 10 to overcome the elastic force of the working spring 9 and slide along the inner wall of the rotating main board 8. At the same time, the rotating main board 8 drives the cleaning brush 11 at the bottom end of the telescopic sub-plate 10 to slide along the outer wall of the tower plate 2 to clean the scale on the outer wall of the capillary through hole 3.

[0046] Embodiment 5:

[0047] The present embodiment provides a distillation tower for chemical production, which, in addition to the technical solutions of the above embodiments, also has the following technical features: an air inlet 12 is provided on the outer wall of the tower body 1, a liquid discharge port 13 is provided on the outer wall of the tower body 1 on one side of the air inlet 12, a liquid inlet 14 is provided on the outer wall of the tower body 1 above the air inlet 12, an exhaust port 15 is provided on the outer wall of the tower body 1 on one side of the liquid inlet 14, a monitoring frame 16 is fixedly connected to the outer wall of the tower body 1 on one side of the tower plate 2, a tempered glass 17 is fixedly connected to the outer wall of the monitoring frame 16, a handle 18 is screwed on the outer wall of the tempered glass 17, one end of the handle 18 is fixedly connected to a connecting column 19 penetrating the outer wall of the tempered glass 17, one end of the connecting column 19 is fixedly connected to a rotating plate 20, and a scraper 21 is provided at the connecting portion between the rotating plate 20 and the tempered glass 17.

[0048] The staff rotates the handle 18, and the rotation of the handle 18 drives the rotating plate 20 to rotate through the connecting column 19. The rotation of the rotating plate 20 drives the scraper 21 to slide along the outer wall of the tempered glass 17 to scrape off the water vapor attached to the outer wall of the tempered glass 17, so that the staff can clearly monitor the reaction inside the tower body 1.

[0049] Embodiment 6:

[0050] This embodiment provides a distillation tower for chemical production. In addition to the technical solutions of the above embodiments, it also has the following technical features: five groups of tempered glass 17 are provided, and the five groups of tempered glass 17 are alternately distributed with the six groups of tower plates 2.

[0051] Among them, by providing five groups of tempered glass 17 , it is beneficial to fully monitor the reaction inside the tower body 1 .

[0052] Embodiment 7:

[0053] This embodiment provides a distillation tower for chemical production. In addition to the technical solutions of the above embodiments, it also has the following technical features: the rotating plate 20 forms a rotating structure with the tempered glass 17 through the handle 18 and the connecting column 19, and the length of the rotating plate 20 is equal to the diameter of the tempered glass 17.

[0054] The handle 18 rotates through the connecting column 19 to drive the rotating plate 20 to rotate. The rotating plate 20 rotates to drive the scraper 21 to slide along the outer wall of the tempered glass 17 to scrape off the water vapor attached to the outer wall of the tempered glass 17, so that the staff can clearly monitor the reaction inside the tower body 1.

[0055] Working principle: First, the staff injects the saturated liquid into the tower body 1 through the liquid inlet 14. Through the overflow plate 4, the saturated liquid passes through six groups of tower plates 2 in sequence. At the same time, the staff injects the gas phase into the tower body 1 through the air inlet 12. The steam contacts the saturated liquid through the capillary holes 3. Due to the temperature difference between the steam and the saturated liquid, the steam is partially condensed. Similarly, the saturated liquid will be partially vaporized. It should be noted that the steam flows from bottom to top, and the air pressure at the bottom of the tower plate 2 is greater than that at the top of the tower plate 2, which causes the saturated liquid to not flow into the capillary holes 3.

[0056] Next, the staff monitors the reaction inside the tower body 1 through the tempered glass 17 on the outer wall of the monitoring frame 16. When a large amount of water vapor adheres to the outer wall of the tempered glass 17, the staff turns the handle 18. The rotation of the handle 18 drives the rotating plate 20 to rotate through the connecting column 19. The rotation of the rotating plate 20 drives the scraper 21 to slide along the outer wall of the tempered glass 17 to scrape off the water vapor adhered to the outer wall of the tempered glass 17, so that the staff can clearly monitor the reaction inside the tower body 1.

[0057] Finally, scale will appear on the capillary hole 3 after long-term use, and the working motor 6 drives the rotating shaft 7 to rotate, and the rotation of the rotating shaft 7 drives the two sets of rotating main boards 8 to rotate synchronously, and the rotation of the rotating main board 8 drives the telescopic sub-plate 10 to overcome the elastic force of the working spring 9 and slide along the inner wall of the rotating main board 8. At the same time, the rotating main board 8 drives the cleaning brush 11 at the bottom of the telescopic sub-plate 10 to slide along the outer wall of the tower plate 2 to clean the scale on the outer wall of the capillary hole 3 to avoid clogging of the capillary hole 3 and causing a decrease in the contact area between the steam and the saturated liquid.

[0058] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A distillation tower for chemical production, characterized in that: include: A tower body (1), wherein the inner wall of the tower body (1) is fixedly connected to a tower plate (2), the outer wall of the tower plate (2) is provided with a capillary through hole (3), the top edge of the tower plate (2) is fixedly connected to an overflow plate (4), the bottom end of the tower plate (2) is located below the overflow plate (4) and is fixedly connected to a guide plate (5), the top of the tower body (1) is fixedly connected to a working motor (6), the output end of the working motor (6) is fixedly connected to a rotating shaft (7), the outer wall of the rotating shaft (7) is fixedly connected to a rotating main board (8) screwed to the top of the tower plate (2), the inner wall of the rotating main board (8) is fixedly connected to a working spring (9), one end of the working spring (9) is fixedly connected to a telescopic sub-board (10) slidably connected to the inner wall of the rotating main board (8), and the bottom ends of the rotating main board (8) and the telescopic sub-board (10) are both provided with a cleaning brush (11).

2. A distillation tower for chemical production according to claim 1, characterized in that: The tower plate (2) has a fan-shaped appearance, and the capillary through holes (3) are evenly distributed along the outer wall of the tower plate (2).

3. A distillation tower for chemical production according to claim 1, characterized in that: The tower plates (2) are provided in six groups, and the rotating main plates (8) are provided in two groups. The two groups of rotating main plates (8) are symmetrical about the rotating shaft (7).

4. A distillation tower for chemical production according to claim 1, characterized in that: The telescopic sub-plate (10) forms a telescopic structure with the rotating main plate (8) through a working spring (9).

5. A distillation tower for chemical production according to claim 1, characterized in that: The outer wall of the tower body (1) is provided with an air inlet (12), a liquid discharge port (13) is provided on the outer wall of the tower body (1) on one side of the air inlet (12), a liquid inlet (14) is provided on the outer wall of the tower body (1) above the air inlet (12), an exhaust port (15) is provided on the outer wall of the tower body (1) on one side of the liquid inlet (14), a monitoring frame (16) is fixedly connected to the outer wall of the tower body (1) on one side of the tower plate (2), a tempered glass (17) is fixedly connected to the outer wall of the monitoring frame (16), a handle (18) is screwed to the outer wall of the tempered glass (17), one end of the handle (18) is fixedly connected to a connecting column (19) penetrating the outer wall of the tempered glass (17), one end of the connecting column (19) is fixedly connected to a rotating plate (20), and a scraper (21) is provided at the connecting portion between the rotating plate (20) and the tempered glass (17).

6. A distillation tower for chemical production according to claim 5, characterized in that: Five groups of the tempered glass (17) are provided, and the five groups of the tempered glass (17) and the six groups of tower plates (2) are distributed alternately.

7. A distillation tower for chemical production according to claim 5, characterized in that: The rotating plate (20) forms a rotating structure with the tempered glass (17) through the handle (18) and the connecting column (19), and the length of the rotating plate (20) is equal to the diameter of the tempered glass (17).

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