Rectification column with cooling structure

Abstract

The utility model belongs to rectifying column technical field, concretely is a kind of rectifying column with cooling structure, including rectifying column body;Rectifying column body top is equipped with condenser;The circulating pump is installed at the top of the condenser;The circulating pump top is connected with water tank;The support column is fixedly connected at the bottom of the water tank;The tank cover is installed at the top of the water tank;The water tank one side is equipped with flow guide ring;Flow guide ring middle part is fixedly connected with filter screen;The water tank one side is equipped with fan;The fan and flow guide ring are correspondingly set;Air is inhaled from flow guide ring by fan, contact high-temperature coolant in water tank after filtering through filter screen, air is discharged after absorbing heat, which can increase the heat dissipation efficiency of coolant, at the same time, filter screen can intercept dust, particles and other impurities in air, reduce its into circulating pump to cause blockage or equipment wear and tear;Increase the service life of circulating pump, reduce coolant replacement frequency, reduce coolant consumption cost.

Description

Technical Field

[0001] This utility model relates to the field of distillation column technology, specifically a distillation column with a cooling structure. Background Technology

[0002] A distillation column is a chemical equipment used to separate components of a mixed liquid. Through multiple partial vaporization and partial condensation heat and mass transfer processes, components with different boiling points form a concentration gradient along the height direction within the column, thereby obtaining high-purity light and heavy component products at the top and bottom of the column, respectively.

[0003] The mixture to be separated is preheated to a specified temperature and enters the distillation column in a liquid or gas-liquid mixture state. It is heated by heat sources such as steam or heat transfer oil, and part of the liquid vaporizes to form rising steam. The unvaporized liquid is discharged from the bottom of the reboiler as the bottom product of the column. The rising steam passes through the liquid layer on the tray, forming bubbles and droplets, which promotes gas-liquid contact. The liquid flows down the trays one by one through the downcomer. The high-purity light component vapor rising from the top of the column enters the condenser and is cooled by cooling water or air, and is completely or partially condensed into liquid.

[0004] After the condenser condenses the top of the distillation column, the temperature of the coolant rises. After multiple heat exchanges, the temperature of the coolant in the water tank rises, causing the distillation column to experience temperature runaway due to cooling failure. Therefore, a distillation column with a cooling structure is proposed to address the above problem. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A distillation column with a cooling structure, comprising a distillation column body; a condenser installed at the top of the distillation column body; a circulating pump installed at the top of the condenser; a water tank connected to the top of the circulating pump; a support column fixed to the bottom of the water tank; the support column being positioned between the water tank and the distillation column body; a tank cover installed at the top of the water tank; a guide ring installed on one side of the water tank; a filter screen fixed to the middle of the guide ring; a fan installed on one side of the water tank; the fan and the guide ring being correspondingly arranged; air is drawn in from the guide ring by the fan, filtered by the filter screen, and then comes into contact with the high-temperature coolant in the water tank. The air absorbs heat and is then discharged, increasing the heat dissipation efficiency of the coolant. Simultaneously, the filter screen can intercept dust, particles, and other impurities in the air, reducing their entry into the circulating pump and preventing blockage or equipment wear; increasing the service life of the circulating pump, reducing the frequency of coolant replacement, and reducing coolant consumption costs.

[0007] Preferably, a rotary motor is fixedly connected to the top of the cover; a stirring rod is fixedly connected to the output end of the rotary motor; and a first stirring paddle is fixedly connected to the end of the stirring rod. When the first stirring paddle rotates, it pushes the coolant to generate eddies and turbulence, which can increase the contact area between the coolant and the air, thereby reducing the cooling time of the coolant. At the same time, the stirring of the first stirring paddle can mix the coolant in the upper and lower areas, so that the overall temperature is consistent and the performance degradation of the coolant caused by local high temperature is reduced.

[0008] Preferably, a second stirring blade is mounted on the surface of the stirring rod; the second stirring blade is positioned above the first stirring blade; the second stirring blade has a larger diameter than the first stirring blade; by having a larger diameter than the lower first stirring blade, a larger vortex can be formed in the upper coolant during rotation, further increasing the contact area with the air entering through the guide ring, increasing the heat dissipation efficiency of the coolant, reducing the output power of the rotating motor, and increasing the stability of the rotating motor.

[0009] Preferably, a set of sliding plates is fixed to the inner wall of the water tank; the sliding plates are respectively arranged corresponding to the fan and the guide ring; the sliding plates are inclined; a support is fixed to one side of the sliding plate; the support is arranged between the sliding plate and the water tank; by installing the sliding plate on the side of the fan and the guide ring, the amount of coolant entering the fan can be reduced, thus reducing damage to the fan and increasing the service life of the fan.

[0010] Preferably, the surface of the water tank is fixed with multiple heat dissipation fins; the heat dissipation fins are wavy; the wavy structure of the heat dissipation fins increases the contact area with the outside air compared to a flat surface, increasing the amount of heat conducted from the water tank to the air, thereby increasing the cooling rate of the coolant. The wavy structure can withstand more stress caused by thermal expansion and contraction than flat fins, reducing the risk of heat dissipation fins deforming or breaking due to high temperature during long-term use.

[0011] Preferably, the inner wall of the water tank is coated with a hydrophobic coating; the hydrophobic coating is located in the middle of the water tank; by spraying a hydrophobic coating on the inner wall of the water tank, it is difficult for scale in the coolant to form a stable adhesion point on its surface. When the coolant flows through, the impact force carries away the uncured scale particles, thereby reducing the probability of scale deposition. The hydrophobic coating increases the heat transfer efficiency between the water tank and the heat dissipation fins by reducing scale deposition.

[0012] The advantages of this utility model are:

[0013] 1. The distillation column with a cooling structure described in this utility model draws in air from the guide ring through a fan, filters it through a filter screen, and then contacts the high-temperature coolant in the water tank. The air absorbs heat and is discharged, which can increase the heat dissipation efficiency of the coolant. At the same time, the filter screen can intercept dust, particles and other impurities in the air, reducing their entry into the circulation pump and causing blockage or equipment wear; increasing the service life of the circulation pump, reducing the frequency of coolant replacement, and reducing coolant consumption costs.

[0014] 2. The distillation column with a cooling structure described in this utility model can increase the contact area between the coolant and the air by generating eddies and turbulence when the first stirring paddle rotates, thereby reducing the cooling time of the coolant. At the same time, the stirring of the first stirring paddle can mix the coolant in the upper and lower regions, so that the overall temperature is kept consistent and the performance degradation of the coolant caused by local high temperature is reduced. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the main body of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the fan in this utility model;

[0018] Figure 3 This is a schematic diagram of the heat dissipation fins in this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the first stirring paddle in this utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the skateboard in this utility model.

[0021] In the diagram: 1. Distillation column body; 11. Condenser; 12. Circulating pump; 13. Water tank; 14. Support column; 15. Tank cover; 16. Flow guide ring; 17. Filter screen; 18. Fan; 2. Rotary motor; 21. Stirring rod; 22. First stirring paddle; 3. Second stirring paddle; 4. Slide plate; 41. Support column; 5. Heat dissipation fins; 6. Hydrophobic coating. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0023] Specific implementation examples are given below.

[0024] like Figures 1 to 3 As shown in the embodiment of this utility model, a distillation column with a cooling structure includes a distillation column body 1; a condenser 11 is installed on the top of the distillation column body 1; a circulating pump 12 is installed on the top of the condenser 11; a water tank 13 is connected to the top of the circulating pump 12; a support column 14 is fixedly connected to the bottom of the water tank 13; the support column 14 is arranged between the water tank 13 and the distillation column body 1; a tank cover 15 is installed on the top of the water tank 13; a guide ring 16 is installed on one side of the water tank 13; a filter screen 17 is fixedly connected to the middle of the guide ring 16; a fan 18 is installed on one side of the water tank 13; the fan 18 and the guide ring 16 are arranged correspondingly; during operation, the coolant in the condenser 11 absorbs the heat of the steam at the top of the distillation column body 1, causing the coolant temperature to rise, and the circulating pump 12 circulates the coolant in the water tank 13... The coolant in the cooling system exchanges with the condenser 11, allowing the hotter coolant to enter the water tank 13. At this time, the fan 18 is turned on to draw in outside air from the guide ring 16. After passing through the filter screen 17 to intercept dust, particles, and other impurities in the air, the air enters the water tank 13. When the air comes into contact with the coolant, it absorbs its heat and is then discharged from the fan 18, thereby cooling the coolant. The process of drawing in air from the guide ring 16 by the fan 18, filtering it through the filter screen 17, and then contacting the high-temperature coolant in the water tank 13 increases the heat dissipation efficiency of the coolant. At the same time, the filter screen 17 can intercept dust, particles, and other impurities in the air, reducing their entry into the circulation pump 12 and preventing blockages or equipment wear; it also increases the service life of the circulation pump 12, reduces the frequency of coolant replacement, and reduces coolant consumption costs.

[0025] like Figure 1 and Figure 4As shown, a rotary motor 2 is fixedly connected to the top of the cover 15; a stirring rod 21 is fixedly connected to the output end of the rotary motor 2; a first stirring paddle 22 is fixedly connected to the end of the stirring rod 21; during operation, when cooling the coolant, the rotary motor 2 is turned on so that its output end drives the stirring rod 21 to rotate, and the first stirring paddle 22 at the end of the stirring rod 21 stirs the coolant. The rotation of the first stirring paddle 22 pushes the coolant to generate eddies and turbulence, which can increase the contact area between the coolant and the air, thereby reducing the cooling time of the coolant. At the same time, the stirring of the first stirring paddle 22 can mix the coolant in the upper and lower areas, so that the overall temperature is consistent and the performance degradation of the coolant caused by local high temperature is reduced.

[0026] like Figure 4 As shown, a second stirring paddle 3 is mounted on the surface of the stirring rod 21; the second stirring paddle 3 is positioned above the first stirring paddle 22; the second stirring paddle 3 has a larger diameter than the first stirring paddle 22; during operation, the second stirring paddle 3 rotates together with the stirring rod 21 to agitate the upper layer of coolant. Because the diameter of the second stirring paddle 3 is larger than that of the lower first stirring paddle 22, it can form a larger vortex in the upper layer of coolant during rotation, further increasing the contact area with the air entering through the guide ring 16, increasing the heat dissipation efficiency of the coolant, reducing the output power of the rotary motor 2, and increasing the stability of the rotary motor 2.

[0027] like Figure 3 and Figure 5 As shown, a set of sliding plates 4 are fixed to the inner wall of the water tank 13; the sliding plates 4 are respectively arranged corresponding to the fan 18 and the guide ring 16; the sliding plates 4 are inclined; a support column 41 is fixed to one side of the sliding plate 4; the support column 41 is arranged between the sliding plate 4 and the water tank 13; during operation, after the coolant forms a vortex, the water level rises, and the coolant will fluctuate up and down under the rotation of the first stirring paddle 22 and the second stirring paddle 3, thus splashing onto the fan 18 and the filter screen 17, causing damage to the inside of the fan 18. The sliding plates 4 allow the coolant to slide down along its inclined surface. By installing the sliding plates 4 on the side of the fan 18 and the guide ring 16, the amount of coolant entering the fan 18 and causing damage to it can be reduced, and the service life of the fan 18 can be increased.

[0028] like Figures 1 to 3 As shown, multiple heat dissipation fins 5 are fixed to the surface of the water tank 13; the heat dissipation fins 5 are wavy; during operation, the coolant comes into contact with the water tank 13, conducting heat to the surface of the water tank 13, and the water tank 13 then conducts the heat to the multiple heat dissipation fins 5, reducing the coolant temperature through contact with the outside air. The wavy structure of the heat dissipation fins 5 increases the contact area with the outside air compared to a flat surface, increasing the amount of heat conducted from the water tank 13 to the air, thereby increasing the cooling rate of the coolant. Compared to straight fins, the wavy structure can withstand more stress caused by thermal expansion and contraction, reducing the risk of deformation and breakage of the heat dissipation fins 5 due to high temperature during long-term use.

[0029] like Figure 3 As shown, the inner wall of the water tank 13 is coated with a hydrophobic coating 6; the hydrophobic coating 6 is located in the middle of the water tank 13; during operation, the hydrophobic coating 6 is in direct contact with the coolant. When the coolant passes over the surface of the hydrophobic coating 6, it continuously washes the hydrophobic coating 6, reducing the accumulation of scale on the surface of the hydrophobic coating 6. By spraying the hydrophobic coating 6 on the inner wall of the water tank 13, it is difficult for scale in the coolant to form a stable adhesion point on its surface. When the coolant flows through, the impact force carries away the uncured scale particles, thereby reducing the probability of scale deposition. By reducing scale deposition, the hydrophobic coating 6 increases the heat transfer efficiency between the water tank 13 and the heat dissipation fins 5.

[0030] Working principle: The coolant in condenser 11 absorbs heat from the steam at the top of distillation column 1, causing the coolant temperature to rise. Circulation pump 12 exchanges coolant inside water tank 13 with condenser 11, allowing the warmer coolant to enter water tank 13. At this time, fan 18 is turned on to draw air from outside water tank 13 through guide ring 16. After passing through filter screen 17 to intercept dust and particles, the air enters water tank 13. Upon contact with the coolant, the air absorbs its heat and is then discharged from fan 18, thus cooling the coolant. While the coolant is being cooled, rotary motor 2 is turned on, causing its output to drive stirring rod 21 to rotate. The first stirring paddle at the end of stirring rod 21... 22. The second stirring paddle 3 rotates together with the stirring rod 21 to agitate the upper layer of coolant. After the coolant forms a vortex, the water level rises. Under the rotation of the first stirring paddle 22 and the second stirring paddle 3, the coolant will fluctuate up and down, splashing onto the fan 18 and the filter screen 17, causing damage to the inside of the fan 18. The slide plate 4 makes the coolant slide down its inclined surface. The coolant comes into contact with the water tank 13 and conducts heat to the surface of the water tank 13. The water tank 13 then conducts heat to multiple heat dissipation fins 5. Contact with the outside air reduces the temperature of the coolant. The hydrophobic coating 6 is in direct contact with the coolant. When the coolant passes over the surface of the hydrophobic coating 6, it continuously washes the hydrophobic coating 6, reducing the accumulation of scale on the surface of the hydrophobic coating 6.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A distillation column with a cooling structure, characterized in that: The system includes a distillation column body (1); a condenser (11) is installed on the top of the distillation column body (1); a circulating pump (12) is installed on the top of the condenser (11); a water tank (13) is connected to the top of the circulating pump (12); a support column (14) is fixed to the bottom of the water tank (13); the support column (14) is located between the water tank (13) and the distillation column body (1); a tank cover (15) is installed on the top of the water tank (13); a guide ring (16) is installed on one side of the water tank (13); a filter screen (17) is fixed to the middle of the guide ring (16); a fan (18) is installed on one side of the water tank (13); the fan (18) and the guide ring (16) are arranged correspondingly.

2. A distillation column with a cooling structure according to claim 1, characterized in that: A rotary motor (2) is fixedly connected to the top of the box cover (15); a stirring rod (21) is fixedly connected to the output end of the rotary motor (2); and a first stirring paddle (22) is fixedly connected to the end of the stirring rod (21).

3. A distillation column with a cooling structure according to claim 2, characterized in that: The stirring rod (21) is equipped with a second stirring paddle (3); the second stirring paddle (3) is positioned above the first stirring paddle (22); the second stirring paddle (3) has a larger diameter than the first stirring paddle (22).

4. A distillation column with a cooling structure according to claim 3, characterized in that: A set of sliding plates (4) are fixed to the inner wall of the water tank (13); the sliding plates (4) are respectively arranged corresponding to the fan (18) and the guide ring (16); the sliding plates (4) are inclined; a support column (41) is fixed to one side of the sliding plate (4); the support column (41) is arranged between the sliding plate (4) and the water tank (13).

5. A distillation column with a cooling structure according to claim 4, characterized in that: The water tank (13) has multiple heat dissipation fins (5) fixed to its surface; the heat dissipation fins (5) are wavy.

6. A distillation column with a cooling structure according to claim 5, characterized in that; The inner wall of the water tank (13) is coated with a hydrophobic coating (6); the hydrophobic coating (6) is located in the middle of the water tank (13).

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