Energy-saving carbon dioxide rectifying tower

Abstract

The utility model relates to the technical field of other characteristics of a fractionating tower, and discloses an energy-saving carbon dioxide rectifying tower which comprises a rectifying tower shell, supporting legs are fixedly connected to the lower side of the rectifying tower shell, and a feeding pipeline communicated with the interior is fixedly connected to the outer surface of the rectifying tower shell. The upper side of the rectifying tower shell is fixedly connected with a gas phase pipeline communicated with the interior, the lower side of the rectifying tower shell is fixedly connected with a liquid phase pipeline communicated with the interior, the liquid phase pipeline is arranged at the eccentric position of the lower side of the rectifying tower shell, and a cleaning mechanism is arranged in the rectifying tower shell. The cleaning mechanism can clean residual materials attached to the inner wall of the rectifying tower shell, and in this way, after rectification of carbon dioxide is completed, the residual materials on the inner wall of the rectifying tower shell can be simply and rapidly cleaned, so that no last residual materials are doped in the rectifying tower shell during rectification, and the rectifying efficiency is improved. And the purity of the rectified carbon dioxide is further improved.

Description

Technical Field

[0001] The utility model relates to other characteristic technical fields of distillation towers, in particular to an energy-saving carbon dioxide distillation tower. Background Art

[0002] A distillation tower is a tower-type vapor-liquid contact device for distillation. It utilizes the different volatilities of the components in the mixture, that is, the different vapor pressures of the components at the same temperature, to transfer the light components in the liquid phase to the gas phase, and the heavy components in the gas phase to the liquid phase, thereby achieving the purpose of separation.

[0003] After the distillation tower distills the material, a small amount of material will always remain on the inner wall of the distillation tower. When the distillation tower is used for distillation again, the material obtained by distillation inside the distillation tower will be mixed with a small amount of material remaining on the inner wall of the distillation tower, thereby reducing the purity of the carbon dioxide obtained by distillation. Therefore, an energy-saving carbon dioxide distillation tower that can clean the inner wall is needed. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the utility model provides an energy-saving carbon dioxide distillation tower, which has the function of simply and quickly cleaning the residual materials on the inner wall of the distillation tower after completing the distillation of carbon dioxide, so that no residual materials from the previous time will be mixed in during the distillation, thereby improving the purity of the distilled carbon dioxide.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an energy-saving carbon dioxide distillation tower, comprising a distillation tower shell, a support leg is fixedly connected to the lower side of the distillation tower shell, and a feed pipeline connected to the interior is fixedly connected to the outer surface of the distillation tower shell;

[0008] The upper side of the distillation tower shell is fixedly connected with a gas phase pipeline connected to the interior, and the lower side of the distillation tower shell is fixedly connected with a liquid phase pipeline connected to the interior;

[0009] The liquid phase pipeline is arranged at an eccentric position on the lower side of the distillation tower shell, and a cleaning mechanism is arranged inside the distillation tower shell, which can clean the residual materials attached to the inner wall of the distillation tower shell.

[0010] Preferably, the cleaning mechanism comprises a water inlet pipe, which is fixedly connected to the upper side of the distillation tower shell, and a water delivery loop is provided inside the distillation tower shell;

[0011] The water supply ring channel is arranged on the upper side of the top wall of the distillation tower shell, and the water inlet pipeline is connected with the inside of the water supply ring channel.

[0012] Preferably, a plurality of water outlet pipes are provided on the top wall of the distillation tower shell, and the water outlet pipes are connected to the inside of the water inlet pipe;

[0013] The shape of the water outlet pipe is inclined, so that the water inside the water delivery loop can be sprayed onto the inner surface of the distillation tower shell through the water outlet pipe;

[0014] Among them, four limiting ring grooves are opened inside the shell of the distillation tower, and the four limiting ring grooves are arranged up and down.

[0015] Preferably, the interiors of the four limiting ring grooves are all slidably connected to limiting blocks, and the four limiting blocks are staggered front and back;

[0016] Among them, the inner surface of the distillation tower shell is provided with four connecting ring grooves, and the four connecting ring grooves are respectively connected with the inside of the four limiting ring grooves;

[0017] Wherein, the insides of the four connecting ring grooves are all slidably connected with tower plates.

[0018] Preferably, the four tower plates are fixedly connected to four limit blocks respectively, and a motor is fixedly connected to the lower side of the distillation tower shell;

[0019] The motor is arranged at the center of the lower side of the distillation tower shell, the output end of the motor is fixedly connected with a transmission shaft, and the upper end of the transmission shaft rotates and extends into the interior of the distillation tower shell.

[0020] Preferably, the upper end of the transmission shaft is fixedly connected with a rotating rod, and the rotating rod is in contact with the bottom wall of the distillation tower shell;

[0021] Among them, two rotating rods are fixedly connected to the upper side of the rotating rod, and two scrapers are arranged front and back;

[0022] The two scrapers are in contact with the inner wall of the shell of the uniform distillation tower at the sides away from each other, and the upper ends of the two scrapers extend over the tower plate.

[0023] (III) Beneficial effects

[0024] Compared with the prior art, the utility model provides an energy-saving carbon dioxide distillation tower, which has the following beneficial effects:

[0025] (1) The energy-saving carbon dioxide distillation tower connects a water pipe to a water inlet pipe to inject water into the interior of the distillation tower shell, and finally the water is sprayed onto the inner wall of the distillation tower shell, thereby starting the motor. The motor drives two scrapers to rotate after transmission. During the rotation of the scrapers, the residual material on the upper end of the inner wall of the distillation tower shell is cleaned. After the residual material falls onto the tower plate, the material flows down from the holes of the tower plate under the flushing of water, and finally the material and water fall onto the bottom wall of the distillation tower shell, and finally flow out from the liquid phase pipeline. After the distillation of carbon dioxide is completed, the residual material on the inner wall of the distillation tower shell can be simply and quickly cleaned, so that the residual material from the last time will not be mixed in during the distillation, thereby improving the purity of the distilled carbon dioxide.

[0026] (2) In the energy-saving carbon dioxide distillation tower, since the scraper passes through the tower plate, the scraper will drive the tower plate to rotate when it rotates, and the tower plate will drive the limit block to rotate. The limit block rotates inside the limit ring groove, so that when the scraper cleans the inside of the distillation tower shell, the tower plate will not affect the movement of the scraper. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the structure of an energy-saving carbon dioxide distillation tower of the utility model;

[0028] Figure 2 This is a schematic diagram of the cross-sectional connection structure of the distillation tower shell of the utility model;

[0029] Figure 3 for Figure 2 An enlarged schematic diagram of point A.

[0030] In the figure: 1. distillation tower shell; 2. supporting legs; 3. feed pipeline; 4. gas phase pipeline; 5. liquid phase pipeline; 6. water inlet pipeline; 7. water supply ring channel; 8. water outlet pipeline; 9. limiting ring groove; 10. limiting block; 11. connecting ring groove; 12. tower plate; 13. motor; 14. transmission shaft; 15. rotating rod; 16. scraper. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] See also Figures 1 to 3The utility model provides a new technical solution: an energy-saving carbon dioxide distillation tower, comprising a distillation tower shell 1, a supporting leg 2 is fixedly connected to the lower side of the distillation tower shell 1, a feed pipeline 3 connected to the interior is fixedly connected to the outer surface of the distillation tower shell 1, a gas phase pipeline 4 connected to the interior is fixedly connected to the upper side of the distillation tower shell 1, a liquid phase pipeline 5 connected to the interior is fixedly connected to the lower side of the distillation tower shell 1, and the liquid phase pipeline 5 is arranged at an eccentric position on the lower side of the distillation tower shell 1, and a cleaning mechanism is arranged inside the distillation tower shell 1, and the cleaning mechanism can clean the residual materials attached to the inner wall of the distillation tower shell 1;

[0033] Furthermore, the cleaning mechanism includes a water inlet pipe 6, which is fixedly connected to the upper side of the distillation tower shell 1. A water supply ring 7 is provided inside the distillation tower shell 1. The water supply ring 7 is arranged on the upper side of the top wall of the distillation tower shell 1. The water inlet pipe 6 is connected to the inside of the water supply ring 7. A plurality of water outlet pipes 8 are provided on the top wall of the distillation tower shell 1. The water outlet pipe 8 is connected to the inside of the water inlet pipe 6. The shape of the water outlet pipe 8 is inclined, so that the water inside the water supply ring 7 can be sprayed to the distillation tower shell 1 through the water outlet pipe 8. On the inner surface of the tower shell 1, four limiting ring grooves 9 are provided inside the distillation tower shell 1, and the four limiting ring grooves 9 are arranged up and down, and the insides of the four limiting ring grooves 9 are all slidably connected to the limiting blocks 10, and the four limiting blocks 10 are staggered front and back. Four connecting ring grooves 11 are provided on the inner surface of the distillation tower shell 1, and the four connecting ring grooves 11 are respectively connected to the insides of the four limiting ring grooves 9, and the insides of the four connecting ring grooves 11 are all slidably connected to the tower plates 12, and the four tower plates 12 are respectively fixedly connected to the four limiting blocks 10;

[0034] Further, a motor 13 is fixedly connected to the lower side of the distillation tower shell 1, and the motor 13 is arranged at the center position of the lower side of the distillation tower shell 1. A transmission shaft 14 is fixedly connected to the output end of the motor 13. The upper end of the transmission shaft 14 rotates and extends into the interior of the distillation tower shell 1. A rotating rod 15 is fixedly connected to the upper end of the transmission shaft 14. The rotating rod 15 contacts the bottom wall of the distillation tower shell 1. Two rotating rods 15 are fixedly connected to the upper side of the rotating rod 15. Two scrapers 16 are arranged front and back. The sides of the two scrapers 16 that are away from each other are in uniform contact with the inner wall of the distillation tower shell 1, and the upper ends of the two scrapers 16 extend over the tower plate 12.

[0035] Furthermore, after the distillation of carbon dioxide is completed, when it is necessary to clean the interior of the distillation tower shell 1, the water pipe is first connected to the water inlet pipe 6, and then the water enters the water supply ring 7 through the water inlet pipe 6, and then enters each water outlet pipe 8 through the water supply ring 7, and finally sprays onto the inner wall of the distillation tower shell 1 through the inclined water outlet pipe 8, and then the motor 13 is started, and the motor 13 starts to transmit power from the output end, driving the transmission shaft 14 to rotate, the transmission shaft 14 drives the rotating rod 15 to rotate, and the rotating rod 15 drives the two scrapers 16 to rotate, and the two scrapers 16 will rotate during the rotation of the two scrapers 16. The residual material on the upper end of the inner wall of the distillation tower shell 1 is At the same time, the scraper 16 drives the tower plate 12 to rotate, and the tower plate 12 drives the limit block 10 to rotate. After the residual material falls on the tower plate 12, the material will flow down from the holes of the tower plate 12 under the flushing of water, and finally the material and water fall on the bottom wall of the distillation tower shell 1, and then move under the push of the rotating rod 15, and will flow out after moving to the position of the liquid phase pipeline 5. In this way, after completing the distillation of carbon dioxide, the residual material on the inner wall of the distillation tower shell 1 can be simply and quickly cleaned, so that the residual material from the last time will not be mixed in during the distillation, thereby improving the purity of the distilled carbon dioxide.

[0036] Working principle: After the distillation of carbon dioxide is completed, when the interior of the distillation tower shell 1 needs to be cleaned, first connect the water pipe to the water inlet pipe 6, and then water enters the water supply ring 7 through the water inlet pipe 6, and then enters each water outlet pipe 8 through the water supply ring 7, and finally sprays onto the inner wall of the distillation tower shell 1 through the inclined water outlet pipe 8, and then starts the motor 13, the motor 13 starts to transmit power from the output end, drives the transmission shaft 14 to rotate, the transmission shaft 14 drives the rotating rod 15 to rotate, and the rotating rod 15 drives the two scrapers 16 to rotate. During the rotation of the two scrapers 16, the residual materials on the upper end of the inner wall of the distillation tower shell 1 are cleaned. At the same time, the scrapers 16 drive the tower plate 12 to rotate, and the tower plate 12 drives the limit block 10 to rotate. After the residual materials fall on the tower plate 12, the materials will flow down from the holes of the tower plate 12 under the flushing of water. Finally, the materials and water fall on the bottom wall of the distillation tower shell 1, and then move under the push of the rotating rod 15, and flow out after moving to the position of the liquid phase pipeline 5.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An energy-saving carbon dioxide distillation tower, comprising a distillation tower shell (1), a support leg (2) fixedly connected to the lower side of the distillation tower shell (1), and a feed pipe (3) connected to the interior of the distillation tower shell (1) fixedly connected to the outer surface of the distillation tower shell (1); in, The upper side of the distillation tower shell (1) is fixedly connected to a gas phase pipeline (4) communicating with the interior, and the lower side of the distillation tower shell (1) is fixedly connected to a liquid phase pipeline (5) communicating with the interior; The liquid phase pipeline (5) is arranged at an eccentric position on the lower side of the distillation tower shell (1), and is characterized in that a cleaning mechanism is arranged inside the distillation tower shell (1), and the cleaning mechanism can clean the residual materials attached to the inner wall of the distillation tower shell (1).

2. An energy-saving carbon dioxide distillation tower according to claim 1, characterized in that: The cleaning mechanism comprises a water inlet pipe (6), the water inlet pipe (6) is fixedly connected to the upper side of the distillation tower shell (1), and a water supply loop (7) is provided inside the distillation tower shell (1); The water supply annular channel (7) is arranged on the upper side of the top wall of the distillation tower shell (1), and the water inlet pipe (6) is connected to the inside of the water supply annular channel (7).

3. An energy-saving carbon dioxide distillation tower according to claim 1, characterized in that: A plurality of water outlet pipes (8) are provided on the top wall of the distillation tower shell (1), and the water outlet pipes (8) are connected to the inside of the water inlet pipe (6); The shape of the water outlet pipe (8) is inclined, so that the water inside the water supply ring channel (7) can be sprayed onto the inner surface of the distillation tower shell (1) through the water outlet pipe (8); The distillation tower shell (1) is provided with four limiting ring grooves (9) inside, and the four limiting ring grooves (9) are arranged vertically.

4. An energy-saving carbon dioxide distillation tower according to claim 3, characterized in that: The interiors of the four limiting ring grooves (9) are all slidably connected to limiting blocks (10), and the four limiting blocks (10) are arranged in a staggered manner in front and behind; The inner surface of the distillation tower shell (1) is provided with four connecting ring grooves (11), and the four connecting ring grooves (11) are respectively connected to the inside of the four limiting ring grooves (9); The insides of the four connecting annular grooves (11) are all slidably connected with tower plates (12).

5. An energy-saving carbon dioxide distillation tower according to claim 4, characterized in that: The four tower plates (12) are fixedly connected to the four limit blocks (10) respectively, and a motor (13) is fixedly connected to the lower side of the distillation tower shell (1); The motor (13) is arranged at the center of the lower side of the distillation tower shell (1), the output end of the motor (13) is fixedly connected to a transmission shaft (14), and the upper end of the transmission shaft (14) rotates and extends into the interior of the distillation tower shell (1).

6. An energy-saving carbon dioxide distillation tower according to claim 5, characterized in that: The upper end of the transmission shaft (14) is fixedly connected to a rotating rod (15), and the rotating rod (15) is in contact with the bottom wall of the distillation tower shell (1); Wherein, two rotating rods (15) are fixedly connected to the upper side of the rotating rod (15), and two scrapers (16) are arranged front and back; The two scrapers (16) are in contact with the inner wall of the uniform distillation tower shell (1) on the sides away from each other, and the upper ends of the two scrapers (16) extend over the tower plate (12).

Images