Rectifying tower capable of being automatically adjusted

Abstract

The utility model discloses a rectifying tower capable of being automatically adjusted. The rectifying tower comprises a tower body, a feeding hole is formed in the tower body, a heat exchanger is arranged at the top of the tower body, a reboiler is arranged at the bottom of the tower body, an inlet of the heat exchanger is connected with a side wall opening of the tower body, and a first pipeline is arranged between the heat exchanger and the tower body; an outlet of the reboiler is connected with a side wall opening of the tower body, and a second pipeline is arranged between the reboiler and the tower body; a plurality of tower plates are arranged in the tower body, and each tower plate is in sliding connection with the tower body; mounting cavities are formed in the side wall of the tower body, and a lifting device is arranged in each mounting cavity; the lifting device comprises a compression spring, a limiting air cylinder, a supporting plate, a lead screw and a gear motor, the gear motor controls the supporting plate to move up and down through the lead screw during working, and the compression spring extrudes the tower plate to be attached to the supporting plate when the limiting air cylinder is separated from the tower plate; according to the utility model, the distance between the upper tower plate and the lower tower plate is adjusted through the lifting device, so that the distance between the upper tower plate and the lower tower plate is enlarged, the flooding phenomenon is well avoided, and the product output efficiency is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of distillation towers, and in particular relates to an automatically adjustable distillation tower. Background Art

[0002] The plate-type distillation tower is a tower-type vapor-liquid contact device for distillation, in which the evaporated gas phase is in countercurrent contact with the descending liquid; during the contact between the gas phase and the liquid phase, the volatile low-boiling point components in the descending liquid are continuously transferred to the gas phase, and the non-volatile high-boiling point components in the gas phase are continuously transferred to the descending liquid. The closer the gas phase is to the top of the tower, the higher the concentration of its volatile components, and the closer the descending liquid is to the bottom of the tower, the more enriched its non-volatile components are, thereby achieving the purpose of component separation. Generally, the existing plate-type distillation tower includes a tower body and a number of tower plates arranged in the tower body, each tower plate is fixedly connected to the tower body, and the vertical spacing between the upper and lower tower plates remains fixed; when the temperature in the tower body is high, the gas rises quickly and the overall gas volume is large, and the gas phase will bring the liquid phase on the lower tower plate to the upper tower plate, which will cause liquid flooding, thereby causing the product output efficiency in the tower body to deteriorate. Therefore, it is necessary to design an automatically adjustable distillation tower to overcome the above difficulties. Summary of the invention

[0003] In view of the problems existing in the prior art, the utility model designs an automatically adjustable distillation tower. The utility model arranges a lifting device on the side of the tower body, and adjusts the distance between the upper and lower tower plates through the lifting device, so that the distance between the upper and lower tower plates becomes larger, thereby effectively avoiding liquid flooding and improving product output efficiency.

[0004] The invention objective of the utility model is achieved through the following technical solutions: an automatically adjustable distillation tower, comprising a tower body, a feed port is arranged on the side of the tower body, a heat exchanger is arranged on the top of the tower body, a reboiler is arranged at the bottom of the tower body, the inlet of the heat exchanger is connected to the side wall opening of the tower body, and a first pipeline is arranged between the outlet of the heat exchanger and the top opening of the tower body; the outlet of the reboiler is connected to the side wall opening of the tower body, and a second pipeline is arranged between the inlet of the reboiler and the bottom opening of the tower body; a plurality of tower plates distributed along the axial direction of the tower body and arranged adjacently are arranged in the tower body, and each of the tower plates is slidably connected to the tower body; an installation cavity is arranged on the side wall of the tower body, and a lifting device for driving the tower plate to move relative to the tower body is arranged in each of the installation cavities; the lifting device comprises a compression spring, a limit cylinder, a support plate, a screw rod and a reduction motor, and the reduction motor controls the support plate to move up and down through the screw rod when working, and when the limit cylinder is separated from the tower plate, the compression spring squeezes the tower plate and the support plate to fit each other.

[0005] Preferably, the lifting device also includes a first helical gear, a second helical gear and a mounting bracket; a limit through hole is provided on the side of the tower plate, a mounting bracket is provided on the outer wall of the mounting cavity, and a limit cylinder is provided on the mounting bracket; the piston shaft of the limit cylinder is arranged toward the limit through hole, and the piston shaft of the limit cylinder is extended and retracted relative to the limit through hole when the limit cylinder is working; a compression spring is also provided in the mounting cavity, one end of the compression spring is fixedly connected to the inner wall of the mounting cavity, and the other end of the compression spring rests on the upper end surface of the tower plate; the screw rod is inserted into the bottom wall of the mounting cavity and is threadedly connected thereto, a support plate is provided on the top of the screw rod, and a second helical gear is provided on the bottom of the screw rod; a reduction motor is provided on the outer wall of the mounting cavity, and a first helical gear is provided on the motor shaft of the reduction motor, and the first helical gear and the second helical gear are meshed with each other.

[0006] The operation of the reduction motor drives the first helical gear to rotate, and the rotation of the first helical gear drives the rotation of the second helical gear; the first helical gear and the second helical gear are both standard parts and are both helical gears, because the first helical gear is fixedly connected to the motor shaft of the reduction motor, so that when the first helical gear rotates, the second helical gear will move axially relative to the first helical gear while rotating; when the second helical gear rotates, it drives the screw to rotate, and the screw is threadedly connected to the installation cavity, so that the screw will move up and down relative to the installation cavity, thereby driving the support plate to move up and down. In the default initial state, the piston shaft of the limit cylinder is inserted into the limit through hole, and the upper end face of the tower plate fits with the inner wall of the installation cavity; after adjusting the upper and lower spacing between the support plate and the tower plate by the screw, the limit cylinder works to make the piston shaft of the limit cylinder disengage from the limit through hole, so that the compression spring will push the tower plate and the support plate to fit each other; after the distillation tower is completed, the tower plate is pushed back to the default initial state by the screw, and the piston shaft of the limit cylinder extends to lock the tower plate. The elastic deformation parameters of the compression spring have been set at the factory, and the pressure value between the upper and lower tower plates will not exceed the elastic force value of the compression spring. In this way, when the piston shaft of the limit cylinder disengages from the limit through hole, the elastic force of the compression spring can make the tower plate fit tightly with the support plate.

[0007] Preferably, a first guide groove is provided in the installation cavity, and the direction of the first guide groove is arranged parallel to the axial direction of the tower body; a first protrusion is provided on the edge of the tower plate, and the first protrusion is arranged in the first guide groove; the outer contour of the first protrusion matches the outer contour of the first guide groove.

[0008] By providing the first guide groove and the first protrusion, the tower plate can only move along the direction where the first guide groove is located when it moves up and down, and the movement process of the tower plate relative to the tower body is more stable.

[0009] Preferably, the installation cavity is provided with first guide grooves arranged in pairs, and the tower plate is provided with first protrusions arranged in pairs; two first guide grooves are symmetrically arranged, and each first guide groove corresponds to each first protrusion one by one.

[0010] By arranging the paired first guide grooves and the first protrusions, a good guiding effect is achieved, and the tower plate will not rotate relative to the tower body but can only move up and down relative to the tower body.

[0011] Preferably, a guide channel is provided in the installation cavity, and a compression spring is provided in the guide channel; the guide channel is cylindrical, and the inner diameter of the guide channel is matched with the outer diameter of the compression spring; one end of the compression spring is fixedly connected to the inner wall of the guide channel, and the other end of the compression spring rests on the tower plate; the guide channel and the compression spring are coaxially arranged.

[0012] By setting the guide channel, it is convenient to install the compression spring. At the same time, the compression spring will generate a stable elastic force to squeeze the contact tower plate, so that the tower plate and the support plate are closely fitted.

[0013] Preferably, a reduction motor fixedly connected to the outer wall of the installation cavity is provided, and a first helical gear rotating synchronously with the reduction motor is provided on the motor shaft of the reduction motor; the screw rod is spirally connected to the installation cavity and is arranged directly below the tower plate, a support plate fixedly connected to the top of the screw rod is provided, and a second helical gear rotating synchronously with the bottom of the screw rod is provided; the screw rod and the tower plate are arranged perpendicular to each other, and the second helical gear meshes and rotates with the first helical gear; when the reduction motor is working, it drives the screw rod to move up and down relative to the installation cavity; the axial width of the first helical gear is greater than the axial width of the second helical gear.

[0014] By providing the first helical gear and the second helical gear, the screw rod can move up and down relative to the installation cavity while rotating.

[0015] Preferably, the tower plate is in a locked state when the piston shaft of the limit cylinder is inserted into the limit through hole, and the tower plate is in an unlocked state when the piston shaft of the limit cylinder is separated from the limit through hole; the tower plate is in a locked state in the default initial state.

[0016] In the default initial state, the tower plate is in a locked state, so that the tower plate and the tower body remain relatively static. When the piston shaft of the limit cylinder is separated from the limit through hole, the tower plate loses its limit, so that the vertical spacing between all tower plates can be easily adjusted.

[0017] Preferably, a second protrusion is further provided on the side of the tower plate, a second guide groove is provided on the inner wall of the tower body, and the second protrusion is arranged in the second guide groove; the outer contour of the second protrusion matches the outer contour of the second guide groove.

[0018] The second guide groove and the second protrusion are provided to facilitate guiding the tower plate, so that the tower plate is more stable during the process of moving up and down.

[0019] Preferably, an overflow weir is provided on the tower plate, and a guide plate is provided directly below the overflow weir; a gap is provided between the guide plate and the inner wall of the tower body, and the edge side wall of the guide plate is in contact with the inner wall of the tower body; the guide plates on the two tower plates arranged adjacent to each other are arranged back to back. A channel is formed between the guide plate and the inner wall of the tower body to facilitate the flow of the liquid phase.

[0020] Preferably, the side wall opening end of the tower body is interconnected with a heat exchanger, and the heat exchanger is provided with a first discharge port; the side wall opening end of the tower body is interconnected with a reboiler, and the reboiler is provided with a second discharge port. The first pipeline is used to connect the tower body and the heat exchanger, and the second pipeline is used to connect the tower body and the reboiler.

[0021] Compared with the prior art, the utility model has the following beneficial effects: the utility model is provided with a plurality of tower plates slidably connected thereto in the tower body, each of the tower plates is provided with a protrusion, and a guide groove is provided in the tower body, so that the process of the tower plate moving relative to the tower body is more stable. The tower body is provided with an installation cavity, and a lifting device is provided in the installation cavity. The screw rod is driven to rotate by a reduction motor, and the support plate is driven to move up and down when the screw rod rotates, so that the vertical spacing between the support plate and the tower plate is conveniently adjusted. The tower plate is limited to move by the piston shaft of the limiting cylinder. When the piston shaft of the limiting cylinder is separated from the tower plate, the compression spring pushes the tower plate downward to make the tower plate squeeze and contact the support plate, so that the spacing between the upper and lower tower plates can be conveniently adjusted. When the tower plate is in an unlocked state, the screw rod is driven up and down by the reduction motor, and the vertical height of the support plate can be accurately adjusted, so as to adjust the vertical spacing between the tower plates again. Therefore, the vertical spacing between the upper and lower tower plates can be accurately adjusted by the lifting device, which well avoids the phenomenon of liquid flooding, thereby making the output efficiency of the product higher. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional diagram of the utility model;

[0023] Figure 2 A three-dimensional diagram of another viewing angle of the present invention;

[0024] Figure 3 It is the internal structure diagram of the utility model;

[0025] Figure 4 This is an internal structure diagram of the utility model from another perspective;

[0026] Figure 5 for Figure 4 A partial enlarged view of position A in the middle;

[0027] Figure 6 This is an exploded view of the hidden tower body of the utility model;

[0028] Figure 7 This is a diagram of the internal structure of the tower.

[0029] Markings in the figure: 1. tower body; 2. feed inlet; 3. heat exchanger; 4. reboiler; 5. first pipeline; 6. second pipeline; 7. tower plate; 8. installation chamber; 9. lifting device; 91. compression spring; 92. limit cylinder; 93. support plate; 94. screw rod; 95. reduction motor; 96. first helical gear; 97. second helical gear; 98. installation bracket; 10. limit through hole; 11. first guide groove; 12. first protrusion; 13. guide channel; 14. second protrusion; 15. second guide groove; 16. overflow weir; 17. guide plate; 18. first discharge port; 19. second discharge port. DETAILED DESCRIPTION

[0030] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings:

[0031] like Figures 1 to 7 As shown, this embodiment discloses an automatically adjustable distillation tower, comprising a tower body 1, a feed inlet 2 is provided on the side of the tower body 1, a heat exchanger 3 is provided on the top of the tower body 1, a reboiler 4 is provided at the bottom of the tower body 1, an inlet of the heat exchanger 3 is connected to the side wall opening of the tower body 1, a first pipeline 5 is provided between the outlet of the heat exchanger 3 and the top opening of the tower body 1; an outlet of the reboiler 4 is connected to the side wall opening of the tower body 1, a second pipeline 6 is provided between the inlet of the reboiler 4 and the bottom opening of the tower body 1; a plurality of pipes 6 are provided in the tower body 1 and are distributed along the axial direction of the tower body 1 And the tower plates 7 are arranged adjacent to each other, and each of the tower plates 7 is slidably connected to the tower body 1; the side wall of the tower body 1 is provided with an installation cavity 8, and each of the installation cavity 8 is provided with a lifting device 9 for driving the tower plate 7 to move relative to the tower body 1; the lifting device 9 includes a compression spring 91, a limit cylinder 92, a support plate 93, a screw rod 94 and a reduction motor 95. When the reduction motor 95 is working, the support plate 93 is controlled to move up and down through the screw rod 94. When the limit cylinder 92 is separated from the tower plate 7, the compression spring 91 squeezes the tower plate 7 and the support plate 93 to fit each other.

[0032] The lifting device 9 also includes a first helical gear 96, a second helical gear 97 and a mounting bracket 98; a limiting through hole 10 is provided on the side of the tower plate 7, a mounting bracket 98 is provided on the outer wall of the mounting cavity 8, and a limiting cylinder 92 is provided on the mounting bracket 98; the piston shaft of the limiting cylinder 92 is arranged toward the limiting through hole 10, and the piston shaft of the limiting cylinder 92 is extended and retracted relative to the limiting through hole 10 when the limiting cylinder 92 is working; a compression spring 91 is also provided in the mounting cavity 8, and the compression spring 91 One end of the compression spring 91 is fixedly connected to the inner wall of the installation cavity 8, and the other end of the compression spring 91 is against the upper end surface of the tower plate 7; the screw rod 94 is inserted into the bottom wall of the installation cavity 8 and is threadedly connected thereto, a support plate 93 is provided on the top of the screw rod 94, and a second helical gear 97 is provided at the bottom of the screw rod 94; a reduction motor 95 is provided on the outer wall of the installation cavity 8, and a first helical gear 96 is provided on the motor shaft of the reduction motor 95, and the first helical gear 96 and the second helical gear 97 are meshed with each other. A first guide groove 11 is provided in the installation cavity 8, and the direction of the first guide groove 11 is arranged parallel to the axial direction of the tower body 1; a first protrusion 12 is provided on the edge of the tower plate 7, and the first protrusion 12 is arranged in the first guide groove 11; the outer contour of the first protrusion 12 matches the outer contour of the first guide groove 11. The installation cavity 8 is provided with a pair of first guide grooves 11, and the tower plate 7 is provided with a pair of first protrusions 12; the two first guide grooves 11 are symmetrically arranged, and each first guide groove 11 corresponds to each first protrusion 12. The installation cavity 8 is provided with a guide channel 13, and a compression spring 91 is arranged in the guide channel 13; the guide channel 13 is cylindrical, and the inner diameter of the guide channel 13 is adapted to the outer diameter of the compression spring 91; one end of the compression spring 91 is fixedly connected to the inner wall of the guide channel 13, and the other end of the compression spring 91 is against the tower plate 7; the guide channel 13 and the compression spring 91 are arranged coaxially. The outer wall of the installation cavity 8 is provided with a reduction motor 95 fixedly connected thereto, and the motor shaft of the reduction motor 95 is provided with a first helical gear 96 that rotates synchronously therewith; the screw rod 94 is spirally connected to the installation cavity 8 and is arranged directly below the tower plate 7, the top of the screw rod 94 is provided with a support plate 93 fixedly connected thereto, and the bottom of the screw rod 94 is provided with a second helical gear 97 that rotates synchronously therewith; the screw rod 94 and the tower plate 7 are arranged perpendicular to each other, and the second helical gear 97 rotates in mesh with the first helical gear 96; when the reduction motor 95 is working, it drives the screw rod 94 to move up and down relative to the installation cavity 8; the axial width of the first helical gear 96 is greater than the axial width of the second helical gear 97. When the piston shaft of the limit cylinder 92 is inserted into the limit through hole 10, the tower plate 7 is in a locked state, and when the piston shaft of the limit cylinder 92 is separated from the limit through hole 10, the tower plate 7 is in an unlocked state; in the default initial state, the tower plate 7 is in a locked state.

[0033] The side of the tower plate 7 is also provided with a second protrusion 14, and the inner wall of the tower body 1 is provided with a second guide groove 15, and the second protrusion 14 is arranged in the second guide groove 15; the outer contour of the second protrusion 14 matches the outer contour of the second guide groove 15. The tower plate 7 is provided with an overflow weir 16, and a guide plate 17 is provided directly below the overflow weir 16; a gap is provided between the guide plate 17 and the inner wall of the tower body 1, and the edge side wall of the guide plate 17 is in contact with the inner wall of the tower body 1; the guide plates 17 on the two adjacent tower plates 7 are arranged back to back. The side wall opening end of the tower body 1 is interconnected with the heat exchanger 3, and the heat exchanger 3 is provided with a first discharge port 18; the side wall opening end of the tower body 1 is interconnected with the reboiler 4, and the reboiler 4 is provided with a second discharge port 19.

[0034] The specific operation process of this embodiment is as follows: the material to be reacted is added into the tower body 1 from the feed port 2, the gas is heated in the reboiler 4 and returns to the tower body 1, and the gas rises through the tower plate 7; part of the gas returns to the tower body 1 through the heat exchanger 3, and the other part of the gas is discharged from the first discharge port 18 through condensation; the liquid flows from top to bottom along the tower plate 7 in sequence, and part of the liquid is discharged from the second discharge port 19 on the reboiler 4. In the default initial state, the distance between any two of the tower plates 7 remains fixed, the piston shaft of the limit cylinder 92 is inserted in the limit through hole 10, and the tower plate 7 is in a locked state. Then, the reduction motor 95 is turned on in advance, and the reduction motor 95 drives the first helical gear 96 to rotate. When the first helical gear 96 rotates, it drives the second helical gear 97; the first helical gear 96 and the second helical gear 97 are both standard parts and are both helical gears, because the first helical gear 96 is fixedly connected to the motor shaft of the reduction motor 95, so that when the first helical gear 96 rotates, the second helical gear 96 will move axially relative to the first helical gear 96 while rotating; when the second helical gear 97 rotates, it drives the screw rod 94 to rotate, and the screw rod 94 is threadedly connected to the mounting cavity 8, so that the screw rod 94 will move up and down relative to the mounting cavity 8, thereby driving the support plate 93 to move up and down. In the default initial state, the piston shaft of the limit cylinder 92 is inserted into the limit through hole 10, and the upper end surface of the tower plate 7 fits against the inner wall of the installation cavity 8; after adjusting the upper and lower distances between the support plate 93 and the tower plate 7 by the screw rod 94, the limit cylinder 92 works to make the piston shaft of the limit cylinder 92 disengage from the limit through hole 10, so that the compression spring 91 will push the tower plate 7 and the support plate 93 to fit against each other; after the distillation tower is completed, the tower plate 7 is pushed back to the default initial state by the screw rod 94, and the piston shaft of the limit cylinder 92 extends to lock the tower plate 7.

[0035] When the tower plate 7 is in the unlocked state, the reduction motor 95 drives the screw rod 94 to move up and down, and the vertical height of the support plate 93 can be accurately adjusted, so as to adjust the vertical distance between the two tower plates 7 again.

[0036] The specific embodiments described herein are merely examples of the spirit of the present invention. A person skilled in the art of the present invention may make various modifications or additions to the specific embodiments described or replace them in a similar manner, but this will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. An automatically adjustable distillation tower, comprising a tower body (1), a feed inlet (2) being provided on the side of the tower body (1), a heat exchanger (3) being provided on the top of the tower body (1), and a reboiler (4) being provided on the bottom of the tower body (1), characterized in that: The inlet of the heat exchanger (3) is connected to the side wall opening of the tower body (1), and a first pipeline (5) is provided between the outlet of the heat exchanger (3) and the top opening of the tower body (1); the outlet of the reboiler (4) is connected to the side wall opening of the tower body (1), and a second pipeline (6) is provided between the inlet of the reboiler (4) and the bottom opening of the tower body (1); a plurality of tower plates (7) are provided in the tower body (1) and are distributed along the axial direction of the tower body (1) and are arranged adjacent to each other, and each of the tower plates (7) is slidably connected to the tower body (1); a side wall of the tower body (1) is provided with a The installation cavity (8) is provided with a lifting device (9) for driving the tower plate (7) to move relative to the tower body (1) in each of the installation cavities (8); the lifting device (9) comprises a compression spring (91), a limit cylinder (92), a support plate (93), a screw rod (94) and a reduction motor (95); when the reduction motor (95) is in operation, the support plate (93) is controlled to move up and down through the screw rod (94); when the limit cylinder (92) is separated from the tower plate (7), the compression spring (91) presses the tower plate (7) and the support plate (93) to fit each other.

2. The automatically adjustable distillation tower according to claim 1, characterized in that: The lifting device (9) further comprises a first helical gear (96), a second helical gear (97) and a mounting bracket (98); a side surface of the tower plate (7) is provided with a limit through hole (10); an outer wall of the mounting cavity (8) is provided with a mounting bracket (98); a limit cylinder (92) is provided on the mounting bracket (98); a piston shaft of the limit cylinder (92) is arranged toward the limit through hole (10); when the limit cylinder (92) is in operation, the piston shaft of the limit cylinder (92) is extended and retracted relative to the limit through hole (10); a compression spring (91) is further provided in the mounting cavity (8); the compression spring (91) One end of the compression spring (91) is fixedly connected to the inner wall of the installation cavity (8), and the other end of the compression spring (91) is against the upper end surface of the tower plate (7); the screw rod (94) is inserted into the bottom wall of the installation cavity (8) and is threadedly connected thereto, a support plate (93) is provided on the top of the screw rod (94), and a second helical gear (97) is provided on the bottom of the screw rod (94); a reduction motor (95) is provided on the outer wall of the installation cavity (8), and a first helical gear (96) is provided on the motor shaft of the reduction motor (95), and the first helical gear (96) and the second helical gear (97) are meshed with each other.

3. The automatically adjustable distillation tower according to claim 2, characterized in that: A first guide groove (11) is provided in the installation cavity (8), and the direction of the first guide groove (11) is arranged parallel to the axial direction of the tower body (1); a first protrusion (12) is provided on the edge of the tower plate (7), and the first protrusion (12) is arranged in the first guide groove (11); the outer contour of the first protrusion (12) matches the outer contour of the first guide groove (11).

4. The automatically adjustable distillation tower according to claim 3, characterized in that: The installation cavity (8) is provided with a pair of first guide grooves (11), and the tower plate (7) is provided with a pair of first protrusions (12); the two first guide grooves (11) are symmetrically arranged, and each of the first guide grooves (11) corresponds one-to-one to each of the first protrusions (12).

5. The automatically adjustable distillation tower according to claim 2, characterized in that: A guide channel (13) is provided in the installation cavity (8), and a compression spring (91) is provided in the guide channel (13); the guide channel (13) is cylindrical, and the inner diameter of the guide channel (13) matches the outer diameter of the compression spring (91); one end of the compression spring (91) is fixedly connected to the inner wall of the guide channel (13), and the other end of the compression spring (91) abuts against the tower plate (7); the guide channel (13) and the compression spring (91) are coaxially arranged.

6. The automatically adjustable distillation tower according to claim 2, characterized in that: A reduction motor (95) fixedly connected to the installation cavity (8) is provided on the outer wall of the installation cavity (8), and a first helical gear (96) rotating synchronously with the reduction motor (95) is provided on the motor shaft of the reduction motor (95); the screw rod (94) is spirally connected to the installation cavity (8) and is arranged directly below the tower plate (7); a support plate (93) fixedly connected to the screw rod (94) is provided on the top of the screw rod (94), and a second helical gear (97) rotating synchronously with the screw rod (94) is provided on the bottom of the screw rod (94); the screw rod (94) and the tower plate (7) are arranged perpendicular to each other, and the second helical gear (97) meshes with the first helical gear (96) to rotate; when the reduction motor (95) is in operation, it drives the screw rod (94) to move up and down relative to the installation cavity (8); the axial width of the first helical gear (96) is greater than the axial width of the second helical gear (97).

7. The automatically adjustable distillation tower according to claim 2, characterized in that: When the piston shaft of the limiting cylinder (92) is inserted into the limiting through hole (10), the tower plate (7) is in a locked state; when the piston shaft of the limiting cylinder (92) is separated from the limiting through hole (10), the tower plate (7) is in an unlocked state; in the default initial state, the tower plate (7) is in a locked state.

8. The automatically adjustable distillation tower according to claim 1, characterized in that: The side surface of the tower plate (7) is also provided with a second protrusion (14), the inner wall of the tower body (1) is provided with a second guide groove (15), and the second protrusion (14) is arranged in the second guide groove (15); the outer contour of the second protrusion (14) matches the outer contour of the second guide groove (15).

9. The automatically adjustable distillation tower according to claim 1, characterized in that: An overflow weir (16) is provided on the tower plate (7), and a guide plate (17) is provided directly below the overflow weir (16); a gap is provided between the guide plate (17) and the inner wall of the tower body (1), and the edge side wall of the guide plate (17) is in contact with the inner wall of the tower body (1); and the guide plates (17) on two tower plates (7) arranged adjacent to each other are arranged back to back.

10. The automatically adjustable distillation tower according to claim 1, characterized in that: The open end of the side wall of the tower body (1) is in communication with the heat exchanger (3), and the heat exchanger (3) is provided with a first discharge port (18); the open end of the side wall of the tower body (1) is in communication with the reboiler (4), and the reboiler (4) is provided with a second discharge port (19).

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