Distillation tower with multi-layer structure

Abstract

The utility model provides a distillation tower with a multilayer structure, which belongs to the technical field of distillation purification equipment and comprises a distillation tower, an air outlet is arranged at the top of the distillation tower, a feed port is arranged on one side of the distillation tower, and a plurality of high-pressure water pipes are communicated with the outer side of the distillation tower. A plurality of servo motors I and a servo motor II are fixedly mounted on the outer side of the distillation tower respectively, a discharge port is formed in the bottom of the distillation tower, a plurality of layers of tower plates are fixedly mounted in the distillation tower, a plurality of high-pressure telescopic spray pipes are arranged in the distillation tower in a communicating manner, and a rotary scraping brush is fixedly connected to the bottom in the distillation tower. According to the utility model, the plurality of high-pressure telescopic spray pipes are arranged to spray a high-pressure water curtain to wash the bottom tower wall of the distillation tower, the rotary scraping brush is arranged to remove sediments attached to the bottom of the distillation tower, and the filtering tank is arranged to filter particulate matters in products at the bottom of the distillation tower.

Description

Technical Field

[0001] The utility model belongs to the technical field of distillation and purification equipment, in particular to a distillation tower with a multi-layer structure. Background Art

[0002] Distillation towers are common equipment in the chemical industry, mainly used to separate mixed liquids. Distillation towers use the principle that different liquids have different boiling points at different temperatures to separate liquids, thereby achieving a purification effect. Distillation towers are usually composed of multiple plates, each of which is equipped with fillers or plates to increase the surface area and contact surface in order to more effectively separate the components in the mixture.

[0003] The existing distillation tower equipment still has the following deficiencies: During the operation of the existing distillation tower, due to the operating conditions or the characteristics of the raw materials, some substances are deposited at the bottom of the distillation tower. These deposits will cause the heat transfer efficiency inside the distillation tower to decrease, thereby affecting the fractionation effect and energy consumption. The presence of deposits will also increase the mass transfer resistance between the gas phase and the liquid phase, resulting in a decrease in the separation efficiency of the distillation tower. Utility Model Content

[0004] The technical solution of the utility model is achieved in this way:

[0005] A multi-layer distillation tower comprises a distillation tower, wherein an air outlet is provided at the top of the distillation tower, a feed inlet is provided at one side of the distillation tower, a plurality of high-pressure water pipes are connected to the outside of the distillation tower, a high-pressure water pump is connected to the end of each high-pressure water pipe away from the distillation tower, a plurality of servo motors 1 and a servo motor 2 are fixedly installed on the outside of the distillation tower, a discharge port is provided at the bottom of the distillation tower, a plurality of multi-layer tower plates are fixedly installed inside the distillation tower, a plurality of high-pressure telescopic nozzles are connected to the inside of the distillation tower, an input end of each high-pressure telescopic nozzle is sleeved inside the high-pressure water pipe, the high-pressure telescopic nozzle is slidably connected to the high-pressure water pipe, a rotating scraper is fixedly connected to the bottom of the distillation tower, and the rotating scraper is compatible with the servo motor 2.

[0006] Preferably, one end of the high-pressure telescopic nozzle is rotatably connected to a high-pressure nozzle, and the high-pressure nozzle is connected to two spiral nozzles. The output end of the servo motor is coaxially fixedly connected to a screw, and the screw is threadedly connected to a screw nut, and one side of the screw nut is fixedly connected to the high-pressure telescopic nozzle.

[0007] Preferably, the rotating scraper brush is fixedly connected with a support block inside, and a gear 1 is arranged at the bottom of the rotating scraper brush, and the gear is coaxially fixedly connected with a connecting rod 1, and the connecting rod 1 is rotatably connected to the rotating scraper brush, and the other end of the connecting rod 1 is coaxially fixedly connected with a bevel gear 1, and the output end of the servo motor 2 is coaxially fixedly connected with a connecting rod 2, and the connecting rod 2 is rotatably connected to the support block, and the other end of the connecting rod 2 is coaxially fixedly connected with a bevel gear 2, and the bevel gear 2 and the bevel gear 1 are meshed with each other, and the bottom of the rotating scraper brush is rotatably connected with a gear 2, and the gear 2 and the gear 1 are meshed with each other, and the gear 2 is fixedly connected with an L-shaped connecting rod, and the other end of the L-shaped connecting rod is fixedly connected with a brush head, and the brush head fits with the bottom of the distillation tower.

[0008] Preferably, the gas outlet of the distillation tower is connected to an air duct, the other end of the air duct is connected to a condenser, one end of the condenser is connected to a liquid outlet pipe, the side of the condenser close to the ground is connected to a reflux pipe, and the other end of the reflux pipe is connected to the distillation tower.

[0009] Preferably, the discharge port of the distillation tower is connected to a discharge pipe 1, the discharge pipe 1 is threadedly connected to a filter tank by bolts, the output end of the filter tank is threadedly connected to a discharge pipe 2 by bolts, one end of the discharge pipe 2 is connected to a reboiler, one side of the reboiler is connected to a discharge pipe 3, the top of the reboiler is connected to an air outlet pipe, and the other end of the air outlet pipe is connected to the distillation tower.

[0010] Preferably, the bottoms of the distillation tower and the reboiler are both fixedly connected with a plurality of supporting columns.

[0011] Compared with the prior art, the utility model has the following advantages:

[0012] The utility model can spray high-pressure water flow during the cleaning of the distillation tower by arranging a plurality of high-pressure telescopic nozzles. The high-pressure nozzle at one end of the high-pressure telescopic nozzle can rotate along the axis under the reaction force of the high-pressure water flow to form a high-pressure water curtain. The high-pressure water curtain can evenly flush the bottom wall of the distillation tower as the high-pressure telescopic nozzle reciprocates and expands. By arranging a rotating scraper, the sediment attached to the bottom of the distillation tower can be removed during the cleaning of the distillation tower, and the sediment will be discharged from the distillation tower along with the cleaning waste water. By arranging a filter tank, particulate matter in the product at the bottom of the distillation tower can be filtered to prevent it from affecting the normal operation of the reboiler. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 This is a schematic diagram of the structure of a multi-layer distillation tower proposed by the utility model;

[0015] Figure 2 This is a schematic diagram of the high-pressure telescopic nozzle structure of a multi-layer distillation tower proposed by the utility model;

[0016] Figure 3 This is a schematic diagram of a rotating scraper structure of a multi-layer distillation tower proposed by the utility model;

[0017] Figure 4 The utility model provides a schematic diagram of the overall structure of a multi-layer distillation tower.

[0018] In the figure: 1 distillation tower, 2 feed port, 3 servo motor 1, 4 servo motor 2, 5 tower plate, 6 high-pressure telescopic nozzle, 7 rotating scraper brush, 8 high-pressure nozzle, 9 spiral nozzle, 10 gear 1, 11 gear 2, 12 bevel gear 1, 13 bevel gear 2, 14 brush head, 15 condenser, 16 filter tank, 17 reboiler. DETAILED DESCRIPTION

[0019] The technical solution of the utility model will be described clearly and completely in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of 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.

[0020] Reference Figure 1-Figure 4 A multi-layer distillation tower comprises a distillation tower 1, a gas outlet is provided at the top of the distillation tower 1, a feed port 2 is provided at one side of the distillation tower 1, a plurality of high-pressure water pipes are connected to the outside of the distillation tower 1, and a high-pressure water pump is connected to the end of each high-pressure water pipe away from the distillation tower 1, a plurality of servo motors 1 3 and a servo motor 2 4 are fixedly installed on the outside of the distillation tower 1, a discharge port is provided at the bottom of the distillation tower 1, a multi-layer tower plate 5 is fixedly installed inside the distillation tower 1, a plurality of high-pressure telescopic nozzles 6 are connected to the inside of the distillation tower 1, an input end of each high-pressure telescopic nozzle 6 is sleeved inside the high-pressure water pipe, and the high-pressure telescopic nozzle 6 is slidably connected to the high-pressure water pipe, a rotating scraping brush 7 is fixedly connected to the bottom of the distillation tower 1, and the rotating scraping brush 7 is adapted to the servo motor 2 4, and the liquid to be distilled enters the distillation tower 1 through the feed port 2, first fills the multi-layer tower plates 5 in sequence, and the excess liquid to be distilled flows out through the discharge port;

[0021] One end of the high-pressure telescopic nozzle 6 is rotatably connected to a high-pressure nozzle 8, and the high-pressure nozzle 8 is connected to two spiral nozzles 9. The output end of the servo motor 3 is coaxially fixedly connected to a lead screw, and the lead screw is threadedly connected to a lead screw nut. One side of the lead screw nut is fixedly connected to the high-pressure telescopic nozzle 6. During the cleaning of the distillation tower, the interior of the high-pressure telescopic nozzle 6 is filled with high-pressure water flow, and the high-pressure water flow will be ejected through the spiral nozzle 9 of the high-pressure nozzle 8. Under the reaction force of the high-pressure water flow, the high-pressure nozzle 8 can be rotated along the axis to form a water curtain of the high-pressure water flow. The servo motor 3 can drive the lead screw to rotate, so that the high-pressure telescopic nozzle 6 fixedly connected to the lead screw nut can be telescopic. The high-pressure water curtain can evenly flush the bottom wall of the distillation tower as the high-pressure telescopic nozzle 6 is extended and retracted;

[0022] A support block is fixedly connected inside the rotating scraping brush 7, and a gear 10 is arranged at the bottom of the rotating scraping brush 7. The gear 10 is coaxially fixedly connected to a connecting rod 1, and the connecting rod 1 is rotatably connected to the rotating scraping brush 7. The other end of the connecting rod 1 is coaxially fixedly connected to a bevel gear 12, and the output end of the servo motor 24 is coaxially fixedly connected to a connecting rod 2, and the connecting rod 2 is rotatably connected to the support block. The other end of the connecting rod 2 is coaxially fixedly connected to a bevel gear 2 13, and the bevel gear 2 13 and the bevel gear 12 are meshed with each other. The bottom of the rotating scraping brush 7 is rotatably connected to a gear 2 11, and the gear 2 11 is meshed with the gear 10. The gear 2 11 is fixedly connected to an L-shaped connecting rod, and the other end of the L-shaped connecting rod is fixedly connected to a brush head 14, and the brush head 14 fits the bottom of the distillation tower 1. The servo motor 24 rotates to drive the bevel gear 2 13 to rotate through the connecting rod 2, and the gear 2 11 is rotated through the transmission of multiple gears, driving the L-shaped connecting rod and the brush head 14 to make a circular motion with the rotating axis of the gear 2 11 as the center, so as to scrub the bottom of the distillation tower 1;

[0023] The gas outlet of the distillation tower 1 is connected with an air guide pipe, the other end of the air guide pipe is connected with a condenser 15, one end of the condenser 15 is connected with a liquid outlet pipe, the side of the condenser 15 close to the ground is connected with a reflux pipe, the other end of the reflux pipe is connected with the distillation tower 1, the steam rising from the top of the tower enters the condenser 15 through the air guide pipe, a part of the condensed liquid is returned to the distillation tower 1 as reflux liquid, and the rest is sent out as distillate;

[0024] The discharge port of the distillation tower 1 is connected with a discharge pipe 1, and the discharge pipe 1 is threadedly connected with a filter tank 16 through bolts. The output end of the filter tank 16 is threadedly connected with a discharge pipe 2 through bolts. One end of the discharge pipe 2 is connected with a reboiler 17, and one side of the reboiler 17 is connected with a discharge pipe 3. The top of the reboiler 17 is connected with an air outlet pipe, and the other end of the air outlet pipe is connected with the distillation tower 1. The filter tank 16 can filter particulate matter in the bottom product of the distillation tower to prevent it from affecting the normal operation of the reboiler. A part of the liquid flowing out of the bottom of the tower is heated into steam by the reboiler 17 and returned to the distillation tower 1, and the other part of the liquid is extracted as the bottom product;

[0025] The bottoms of the distillation tower 1 and the reboiler 17 are both fixedly connected with a plurality of support columns for supporting.

[0026] The functional principle of the utility model can be explained through the following operation modes:

[0027] The liquid to be distilled enters the distillation tower 1 through the feed port 2, and first fills the multiple layers of the tower plates 5 in sequence. The excess liquid to be distilled will flow out through the bottom discharge port of the tower. A part of the liquid flowing out of the bottom of the tower is heated into steam by the reboiler 17 and returned to the distillation tower 1, and the other part of the liquid is extracted as the bottom product. The filter tank 16 can filter the particulate matter in the bottom product of the distillation tower to prevent it from affecting the normal operation of the reboiler. The steam heated by the reboiler 17 at the bottom of the tower is in countercurrent two-phase contact with the descending liquid to be distilled. The volatile components in the descending liquid to be distilled are continuously transferred to the steam, and the non-volatile components in the steam are continuously transferred to the bottom of the tower. The steam rising from the top of the tower enters the condenser 15 through the air guide pipe. A part of the condensed liquid is returned to the distillation tower 1 as reflux liquid, and the rest is sent out as distillate.

[0028] During the cleaning of the distillation tower, the interior of the high-pressure telescopic nozzle 6 is filled with high-pressure water flow, which is ejected through the spiral nozzle 9 of the high-pressure nozzle 8, and rotates along the axis in the opposite direction of the high-pressure water flow to form a high-pressure water curtain. The servo motor 13 can drive the screw to rotate, so that the high-pressure telescopic nozzle 6 fixedly connected to the screw nut can move telescopically. The high-pressure water curtain can evenly flush the bottom wall of the distillation tower with the telescopic movement of the high-pressure telescopic nozzle 6.

[0029] The servo motor 24 drives the bevel gear 2 13 to rotate by rotating the connecting rod 2 inside the scraper 7, and the gear 2 11 rotates through the transmission of multiple gears, driving the L-shaped connecting rod and the brush head 14 to make a circular motion with the rotating shaft of the gear 2 11 as the center, brushing the bottom of the distillation tower 1.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-layer distillation tower, comprising a distillation tower (1), characterized in that: The distillation tower (1) has an air outlet at the top, a feed inlet (2) at one side, a plurality of high-pressure water pipes are arranged on the outside of the distillation tower (1), and each of the high-pressure water pipes is arranged on one end away from the distillation tower (1) and is arranged on a high-pressure water pump. A plurality of servo motors (1) and a servo motor (2) are fixedly installed on the outside of the distillation tower (1). A discharge port is arranged at the bottom of the distillation tower (1), a plurality of tower plates (5) are fixedly installed inside the distillation tower (1), a plurality of high-pressure telescopic nozzles (6) are arranged on the inside of the distillation tower (1), and the input end of each high-pressure telescopic nozzle (6) is sleeved inside the high-pressure water pipe. The high-pressure telescopic nozzle (6) is slidably connected to the high-pressure water pipe. A rotating scraper (7) is fixedly connected to the bottom of the distillation tower (1), and the rotating scraper (7) is compatible with the servo motor (2) (4).

2. A multi-layer distillation tower according to claim 1, characterized in that: One end of the high-pressure telescopic nozzle (6) is rotatably connected to a high-pressure nozzle (8), and the high-pressure nozzle (8) is connected to two spiral nozzles (9). The output end of the servo motor (3) is coaxially fixedly connected to a lead screw, and the lead screw is threadedly connected to a lead screw nut, and one side of the lead screw nut is fixedly connected to the high-pressure telescopic nozzle (6).

3. The multi-layer distillation tower according to claim 2, characterized in that: The rotating scraper brush (7) is fixedly connected to a support block inside, and a gear 1 (10) is arranged at the bottom of the rotating scraper brush (7). The gear 1 (10) is coaxially fixedly connected to a connecting rod 1, and the connecting rod 1 is rotatably connected to the rotating scraper brush (7). The other end of the connecting rod 1 is coaxially fixedly connected to a bevel gear 1 (12). The output end of the servo motor 2 (4) is coaxially fixedly connected to a connecting rod 2, and the connecting rod 2 is rotatably connected to the support block. The other end of the connecting rod 2 is coaxially fixedly connected to a bevel gear 2 (13), and the bevel gear 2 (13) and the bevel gear 1 (12) are meshed with each other. The bottom of the rotating scraper brush (7) is rotatably connected to a gear 2 (11), and the gear 2 (11) and the gear 1 (10) are meshed with each other. The gear 2 (11) is fixedly connected to an L-shaped connecting rod, and the other end of the L-shaped connecting rod is fixedly connected to a brush head (14), and the brush head (14) is fitted with the bottom of the distillation tower (1).

4. The multi-layer distillation tower according to claim 3, characterized in that: The gas outlet of the distillation tower (1) is connected to an air guide pipe, the other end of the air guide pipe is connected to a condenser (15), one end of the condenser (15) is connected to a liquid outlet pipe, the side of the condenser (15) close to the ground is connected to a reflux pipe, and the other end of the reflux pipe is connected to the distillation tower (1).

5. The multi-layer distillation tower according to claim 4, characterized in that: The discharge port of the distillation tower (1) is connected to a discharge pipe 1, the discharge pipe 1 is threadedly connected to a filter tank (16) via bolts, the output end of the filter tank (16) is threadedly connected to a discharge pipe 2 via bolts, one end of the discharge pipe 2 is connected to a reboiler (17), one side of the reboiler (17) is connected to a discharge pipe 3, the top of the reboiler (17) is connected to an air outlet pipe, and the other end of the air outlet pipe is connected to the distillation tower (1).

6. The multi-layer distillation tower according to claim 5, characterized in that: The bottoms of the distillation tower (1) and the reboiler (17) are both fixedly connected with a plurality of support columns.

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