Circulating water-saving type rectification device

Abstract

The utility model discloses a circulating water-saving type rectification device, which relates to the technical field of rectification and comprises a rectification tower, a feed pipe and an exhaust pipe are fixedly communicated on the rectification tower, a reboiling component is arranged at the bottom of the rectification tower, a condensation tank is fixedly communicated on the exhaust pipe, a vent hole is arranged on the condensation tank, and a cooling cavity is arranged in the condensation tank. A condensation pipe is arranged in the cooling cavity, one end of the condensation pipe fixedly communicates with the exhaust pipe, and the other end of the condensation pipe penetrates through the condensation tank and fixedly communicates with a discharging pipe. The water-saving condensation tank is reasonable in design structure, the size of the cooling cavity in the condensation tank is reduced through the ventilation holes, the amount of water filled in the cooling cavity by the water-cooling assembly is reduced, the water-saving effect is achieved, gas in the condensation pipe is subjected to double cooling through cooling liquid in the cooling cavity and the air-cooling assembly, water saving is guaranteed, and meanwhile the water-saving effect is achieved. And the gas condensation efficiency can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of distillation, in particular to a circulating water-saving distillation device. Background Art

[0002] Distillation is usually carried out in a distillation tower, where the gas and liquid phases contact each other through countercurrent flow to conduct interphase heat and mass transfer. The volatile components in the liquid phase enter the gas phase, and the non-volatile components in the gas phase transfer to the liquid phase, so that almost pure volatile components can be obtained at the top of the tower, and almost pure non-volatile components can be obtained at the bottom of the tower. The feed liquid is added from the middle of the tower. The tower section above the feed port further concentrates the volatile components in the rising vapor, which is called the distillation section. The tower section below the feed port extracts the volatile components from the descending liquid, which is called the stripping section.

[0003] A Chinese patent with announcement number CN211676375U discloses a water-saving methanol distillation device, which improves the condensation efficiency of methanol gas through a condensation mechanism, reduces the consumption of condensed water, and improves the water-saving performance of the distillation tower. Compared with the existing condensation mechanism, the condensation mechanism is powered by the air flow inside the feed pipe, which improves the water-saving performance of the mechanism. At the same time, the methanol gas is condensed through an air-cooled component, which improves the condensation efficiency of the distillation tower and further improves the water-saving performance of the distillation tower.

[0004] However, after the fan rotates, it can pressurize the gas entering the condenser box from the feed pipe. Since there is no exchange of external energy, the condensation effect on the gas is limited. In addition, the contact area between the condenser and the gas does not change by simply rotating the condenser tube, which not only makes it difficult to save water, but also affects the condensation efficiency. To this end, we provide a circulating water-saving distillation device to solve the above problems. Utility Model Content

[0005] 1) Technical issues solved

[0006] The purpose of the utility model is to make up for the deficiencies of the prior art and provide a circulating water-saving distillation device.

[0007] 2) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a circulating water-saving distillation device, comprising a distillation tower, the distillation tower is fixedly connected with a feeding pipe and an exhaust pipe, a reboiling assembly is arranged at the bottom of the distillation tower, a condenser is fixedly connected with the exhaust pipe, a ventilation hole is provided on the condenser, a cooling chamber is provided in the condenser, a condenser is arranged in the cooling chamber, one end of the condenser is fixedly connected with the exhaust pipe, the other end of the condenser passes through the condenser and is fixedly connected with a discharge pipe, a water cooling assembly for circulating water in the cooling chamber is also arranged on the condenser, and an air cooling assembly is arranged in the ventilation hole.

[0009] Furthermore, the reboiler assembly includes a reboiler, to which a reflux pipe, a steam pipe and a residue pipe are fixedly connected. One end of the reflux pipe away from the reboiler is fixedly connected to the middle section of the feeding pipe, and one end of the residue pipe away from the reboiler is fixedly connected to the bottom surface of the distillation tower.

[0010] Furthermore, the water cooling assembly includes a water inlet pipe and a drain pipe, the water inlet pipe is fixedly connected to the bottom of one side of the condensation tank, the drain pipe is fixedly connected to the top of the other side of the drain pipe, and coolant is arranged in the cooling cavity.

[0011] Furthermore, the air cooling component includes a fixed plate installed on the condensation tank, a motor is installed on the fixed plate, the output shaft of the motor passes through the fixed plate and is fixedly connected to a third shaft, a second shaft is rotatably connected to the fixed plate, fan blades are installed on the second shaft, and the third shaft is connected to the second shaft through a belt and a pulley.

[0012] Furthermore, the condensing tank is rotatably connected to a first rotating shaft, one end of which is fixedly connected to a water wheel, and the water wheel is located in the cooling chamber, and the other end of the water wheel passes through the condensing tank and is transmission-connected to the third rotating shaft through a belt and a pulley.

[0013] 3) Beneficial effects:

[0014] Compared with the prior art, the circulating water-saving distillation device has the following beneficial effects:

[0015] The utility model achieves water-saving effect by coordinating the arrangement of the condensing tank, ventilation holes, cooling chamber, condensing tube, water-cooling assembly and air-cooling assembly. The size of the cooling chamber in the condensing tank is reduced through the ventilation holes, thereby reducing the amount of water in the cooling chamber filled by the water-cooling assembly, and then doubly cooling the gas in the condensing tube through the coolant in the cooling chamber and the air-cooling assembly. While ensuring water-saving, the condensation efficiency of the gas can also be effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a three-dimensional diagram of the condensation tank of the utility model.

[0018] In the figure: 1. distillation tower; 2. feeding pipe; 3. reflux pipe; 4. reboiler; 5. steam pipe; 6. residue pipe; 7. exhaust pipe; 8. condenser; 9. ventilation hole; 10. cooling chamber; 11. water inlet pipe; 12. drain pipe; 13. condenser; 14. discharge pipe; 15. first rotating shaft; 16. water wheel; 17. second rotating shaft; 18. fan blades; 19. fixing plate; 20. motor; 21. third rotating shaft. DETAILED DESCRIPTION

[0019] 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.

[0020] like Figure 1-2 As shown, the utility model provides a technical solution: a circulating water-saving distillation device, including a distillation tower 1, a feeding pipe 2 and an exhaust pipe 7 are fixedly connected to the distillation tower 1, the feeding pipe 2 can add material to the distillation tower 1, the gas generated by the exhaust pipe 7 can be discharged from the top of the distillation tower 1, and a reboiler assembly is arranged at the bottom of the distillation tower 1.

[0021] The reboiler assembly includes a reboiler 4, to which a reflux pipe 3, a steam pipe 5 and a residue pipe 6 are fixedly connected. The end of the reflux pipe 3 away from the reboiler 4 is fixedly connected to the middle section of the feeding pipe 2, and the end of the residue pipe 6 away from the reboiler 4 is fixedly connected to the bottom surface of the distillation tower 1.

[0022] The slag produced in the distillation tower 1 can be transported to the reboiler 4 through the residue pipe 6 , and the slag is heated and boiled through the steam pipe 5 , and the gas produced after boiling is refluxed into the feeding pipe 2 .

[0023] The exhaust pipe 7 is fixedly connected to a condenser 8, and a ventilation hole 9 is provided on the condenser 8. The ventilation hole 9 is located in the middle of the condenser 8. A cooling chamber 10 is provided in the condenser 8, and a condenser 13 is arranged in the cooling chamber 10. The condenser 13 is spirally designed to extend the flow time of the gas in the cooling chamber 10. One end of the condenser 13 is fixedly connected to the exhaust pipe 7, and the other end of the condenser 13 passes through the condenser 8 and is fixedly connected to a discharge pipe 14. The gas can be transported to the condenser 13 through the exhaust pipe 7, and the gas is condensed in the condenser 13 and then discharged through the discharge pipe 14. The condenser 8 is also provided with a water cooling component for circulating water supply in the cooling chamber 10, and the water cooling component includes an inlet pipe 11 and a drain pipe 12. The inlet pipe 11 is fixedly connected to the bottom of one side of the condenser 8, and the drain pipe 12 is fixedly connected to the top of the other side of the drain pipe 12. Coolant is arranged in the cooling chamber 10.

[0024] The coolant is injected from the bottom, that is, the coolant is transported to the cooling chamber 10 through the water inlet pipe 11 , and is discharged from the drain pipe 12 after the cooling chamber 10 is filled with the coolant, and the gas in the condenser 13 is condensed by the coolant.

[0025] An air cooling assembly is arranged in the ventilation hole 9, and the air cooling assembly includes a fixed plate 19 installed on the condensation tank 8, a motor 20 is installed on the fixed plate 19, an output shaft of the motor 20 passes through the fixed plate 19 and is fixedly connected to a third shaft 21, a second shaft 17 is rotatably connected to the fixed plate 19, a fan blade 18 is installed on the second shaft 17, and the third shaft 21 is connected to the second shaft 17 through a belt and a pulley transmission.

[0026] The third rotating shaft 21 is driven to rotate by the output rotating shaft of the motor 20, and under the action of the belt and the pulley, the second rotating shaft 17 and the fan blades 18 can rotate in the ventilation hole 9, so that the air flow can pass through the inside of the ventilation hole 9, thereby achieving the effect of cooling the medium in the condensation tank 8.

[0027] A first rotating shaft 15 is rotatably connected to the condensing tank 8, one end of which is fixedly connected to a water wheel 16, and the water wheel 16 is located in the cooling chamber 10. The other end of the water wheel 16 passes through the condensing tank 8 and is connected to the third rotating shaft 21 through a belt and a pulley.

[0028] By driving the first rotating shaft 15 to rotate through the third rotating shaft 21 , the water wheel 16 on the first rotating shaft 15 can rotate in the cooling chamber 10 , thereby accelerating the fluidity of the coolant in the cooling chamber 10 .

[0029] It should be noted that, in this article, the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model; the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "fixed", "installed", "connected", and "connected" should be understood in a broad sense. For example, "installed" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a mechanical connection or an electrical connection; "connected" can be a direct connection, an indirect connection through an intermediate medium, or a connection between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.

[0030] 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. A circulating water-saving distillation device, comprising a distillation tower (1), characterized in that: The distillation tower (1) is fixedly connected with a feeding pipe (2) and an exhaust pipe (7), a reboiling assembly is arranged at the bottom of the distillation tower (1), a condenser (8) is fixedly connected with the exhaust pipe (7), a ventilation hole (9) is provided on the condenser (8), a cooling chamber (10) is provided in the condenser (8), a condenser (13) is arranged in the cooling chamber (10), one end of the condenser (13) is fixedly connected with the exhaust pipe (7), the other end of the condenser (13) passes through the condenser (8) and is fixedly connected with a discharge pipe (14), the condenser (8) is also provided with a water cooling assembly for circulating water in the cooling chamber (10), and an air cooling assembly is arranged in the ventilation hole (9).

2. A circulating water-saving distillation device according to claim 1, characterized in that: The reboiler assembly comprises a reboiler (4), and a reflux pipe (3), a steam pipe (5) and a residue pipe (6) are fixedly connected to the reboiler (4); one end of the reflux pipe (3) away from the reboiler (4) is fixedly connected to the middle section of the feed pipe (2), and one end of the residue pipe (6) away from the reboiler (4) is fixedly connected to the bottom surface of the distillation tower (1).

3. A circulating water-saving distillation device according to claim 1, characterized in that: The water cooling assembly comprises a water inlet pipe (11) and a drain pipe (12); the water inlet pipe (11) is fixedly connected to the bottom of one side of the condensation tank (8); the drain pipe (12) is fixedly connected to the top of the other side of the drain pipe (12); and a coolant is arranged in the cooling chamber (10).

4. A circulating water-saving distillation device according to claim 1, characterized in that: The air cooling component comprises a fixed plate (19) mounted on the condensing tank (8), a motor (20) being mounted on the fixed plate (19), an output shaft of the motor (20) passing through the fixed plate (19) and being fixedly connected to a third shaft (21), a second shaft (17) being rotatably connected to the fixed plate (19), a fan blade (18) being mounted on the second shaft (17), and the third shaft (21) being connected to the second shaft (17) via a belt and a pulley.

5. A circulating water-saving distillation device according to claim 4, characterized in that: The condensing tank (8) is rotatably connected to a first rotating shaft (15), one end of the first rotating shaft (15) is fixedly connected to a water wheel (16), and the water wheel (16) is located in the cooling chamber (10), and the other end of the water wheel (16) passes through the condensing tank (8) and is transmission-connected to a third rotating shaft (21) via a belt and a pulley.

Images