A kind of isotope cryogenic distillation separation device

Abstract

The utility model discloses an isotope low-temperature distillation separation device, which relates to the field of distillation technology, including a main distillation device, the main distillation device is fixedly connected with a steam inlet pipe, the steam inlet pipe is provided with a U-shaped condensation separation component, and the condensation separation component includes a collection component, a cooling component and a reflux component. The utility model has a reasonable design structure. It adopts the structure of an annular tube and a discharge pipe to achieve uniform spraying of the coolant from multiple points to the inner wall of the condensation jacket. Compared with the traditional atomization spraying technology, this design significantly increases the contact area and contact time between the coolant and the steam, thereby greatly improving the condensation efficiency and the uniformity of the coolant distribution, effectively avoiding the problem of local overheating or uneven cooling, so that the components in the steam can be more fully condensed, and the separation purity and overall separation efficiency of the isotopes are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of distillation, in particular to an isotope low-temperature distillation separation device. Background Art

[0002] The cryogenic distillation separation device separates the components in a liquid mixture by lowering the temperature and utilizing the difference in boiling points of different components. Its structure includes a heater, a distillation tower, a condenser, a separator and a cooler. The mixture is first heated to the evaporation temperature and then enters the distillation tower. In the tower, the high-boiling-point components condense into liquid through contact with the condensate, and the low-boiling-point components continue to rise. The condensed liquid is separated from the steam, and the steam is cooled into liquid through the condenser. The separated liquid is cooled to the required temperature through the cooler.

[0003] A Chinese patent with announcement number CN220877775U discloses a high-purity low-temperature distillation separation device, which uses atomization spray technology to spray the coolant in the form of mist or fine droplets onto the outer surface of the condenser tube, thereby increasing the contact area between the coolant and the steam and improving the condensation effect. By improving the condensation efficiency and extending the contact time, the components in the uncondensed steam can be more effectively absorbed by the coolant, thereby improving the separation effect.

[0004] The heat dissipation of steam can be achieved by attaching mist cooling liquid to the condenser tube. However, the fluidity of mist cooling liquid is poor and it can only have a good cooling effect on the direct position of the mist nozzle, which makes the condensation effect of steam poor. Therefore, we provide an isotope cryogenic distillation separation 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 to provide an isotope low-temperature distillation separation device.

[0007] 2) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an isotope low-temperature distillation separation device, comprising a main distillation device, the main distillation device is fixedly connected to a steam inlet pipe, the steam inlet pipe is provided with a U-shaped condensation separation component, and the condensation separation component includes a collection component, a cooling component and a reflux component.

[0009] The cooling component includes a condensation jacket and a coolant pipe, the collecting component is located in the condensation jacket, two shunt pipes are installed on the coolant pipe, and the ends of the two shunt pipes away from the coolant pipe are fixedly connected to an annular pipe, the annular pipe is fixedly connected to a circumferentially arranged discharge pipe, and the end of the discharge pipe away from the annular pipe is located in the condensation jacket.

[0010] Furthermore, the collecting assembly includes a first cooling tube, a second cooling tube and a third cooling tube, the two ends of the second cooling tube are respectively fixedly connected to the first cooling tube and the third cooling tube, and the end of the first cooling tube away from the second cooling tube is fixedly connected to the steam inlet pipe.

[0011] Furthermore, the middle section of the second cooling tube is fixedly connected with a drain pipe, and the drain pipe is away from the condensation jacket at one end of the second cooling tube and extends to the outside of the condensation jacket.

[0012] Furthermore, the reflux assembly includes an air pump installed on the main distillation device, the input end of the air pump is fixedly connected to a steam outlet pipe, and the steam outlet pipe is connected to the third cooling pipe, the output end of the air pump is fixedly connected to a reflux pipe, and the reflux pipe is fixedly connected to the bottom of the main distillation device.

[0013] Furthermore, the middle section of the condensation jacket is fixedly connected to a drain pipe.

[0014] Furthermore, a resistive heater is provided in the main distillation device, and a liquid inlet pipe is fixedly connected to the main distillation device.

[0015] Furthermore, the liquid discharge pipe is fixedly connected to a liquid return pipe, one end of the liquid return pipe is fixedly connected to the main distillation device, and a water pump is installed on the liquid return pipe.

[0016] 3) Beneficial effects:

[0017] Compared with the prior art, the isotope cryogenic distillation separation device has the following beneficial effects:

[0018] The utility model realizes the uniform spraying of coolant from multiple points to the inner wall of the condensation jacket by adopting the structure of an annular tube and a discharge pipe. Compared with the traditional atomizing spray technology, this design significantly increases the contact area and contact time between the coolant and the steam, thereby greatly improving the condensation efficiency and the uniformity of the coolant distribution, effectively avoiding the problems of local overheating or uneven cooling, so that the components in the steam can be more fully condensed, thereby improving the separation purity of the isotopes and the overall separation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a three-dimensional diagram of the condensation separation component in the utility model;

[0021] Figure 3 It is a cross-sectional view of the condensation separation component in the utility model.

[0022] In the figure: 1. main distillation device; 2. liquid inlet pipe; 3. steam inlet pipe; 4. first cooling pipe; 5. second cooling pipe; 6. third cooling pipe; 7. liquid discharge pipe; 8. steam outlet pipe; 9. air pump; 10. reflux pipe; 11. condensation jacket; 12. cooling liquid pipe; 13. diverter pipe; 14. annular pipe; 15. discharge pipe; 16. drain pipe. DETAILED DESCRIPTION

[0023] 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.

[0024] like Figure 1-3 As shown, the utility model provides a technical solution: an isotope low-temperature distillation separation device, comprising a main distillation device 1, a resistive heater is arranged in the main distillation device 1, a liquid inlet pipe 2 is fixedly connected to the main distillation device 1, a filler is also designed in the main distillation device 1, the liquid entering the main distillation device 1 through the liquid inlet pipe 2 is above the filler, and the mixing effect of the liquid and the steam is improved by the filler, the main distillation device 1 is fixedly connected to a steam inlet pipe 3, the steam can be discharged from the main distillation device 1 through the steam inlet pipe 3, a U-shaped condensation separation component is arranged on the steam inlet pipe 3, and the condensation separation component includes a collecting component, a cooling component and a reflux component.

[0025] The cooling assembly includes a condensation jacket 11 and a coolant pipe 12. The coolant pipe 12 is connected to an external cold water pump box, and the coolant can be transported to the coolant pipe 12 through the cold water pump. The collecting assembly is located in the condensation jacket 11. Two shunt pipes 13 are installed on the coolant pipe 12. The ends of the two shunt pipes 13 away from the coolant pipe 12 are fixedly connected with an annular pipe 14. The annular pipe 14 is fixedly connected with a circumferentially arranged discharge pipe 15, and the end of the discharge pipe 15 away from the annular pipe 14 is located in the condensation jacket 11. Under the action of the shunt pipe 13, the coolant is transported to the two annular pipes 14 respectively, and then transported to the condensation jacket 11 from multiple points through the discharge pipe 15. The middle section of the condensation jacket 11 is fixedly connected with a drain pipe 16. The coolant entering the condensation jacket 11 will flow back to the bottom end of the condensation jacket 11 and be discharged from the condensation jacket 11 through the drain pipe 16.

[0026] The collecting assembly includes a first cooling tube 4, a second cooling tube 5 and a third cooling tube 6. The two ends of the second cooling tube 5 are fixedly connected to the first cooling tube 4 and the third cooling tube 6 respectively. The end of the first cooling tube 4 away from the second cooling tube 5 is fixedly connected to the steam inlet pipe 3. Since the first cooling tube 4 and the third cooling tube 6 are both at the flat end position of the condensation jacket 11, the gas in the first cooling tube 4 and the third cooling tube 6 can be cooled and cooled at the same time through the discharge pipes 15 on the two annular tubes 14, and the coolant is converged from the two ends of the condensation jacket 11 to the middle section of the condensation jacket 11.

[0027] The middle section of the second cooling tube 5 is fixedly connected with a drain pipe 7 , which is away from the condensation jacket 11 at one end of the second cooling tube 5 and extends to the outside of the condensation jacket 11 . The liquid generated in the second cooling tube 5 will be collected in the drain pipe 7 .

[0028] The reflux assembly includes an air pump 9 installed on the main distillation device 1, the input end of the air pump 9 is fixedly connected to a steam outlet pipe 8, and the steam outlet pipe 8 is connected to the third cooling pipe 6, the output end of the air pump 9 is fixedly connected to a reflux pipe 10, and the reflux pipe 10 is fixedly connected to the bottom of the main distillation device 1, and the remaining steam in the third cooling pipe 6 is converged to the bottom of the main distillation device 1 through the steam outlet pipe 8, the air pump 9 and the reflux pipe 10, so that the steam can preheat the reagent in the main distillation device 1.

[0029] The discharge pipe 7 is fixedly connected to a return pipe 17, one end of which is fixedly connected to the main distillation device 1, and a water pump is installed on the return pipe 17. The connection point between the return pipe 17 and the main distillation device 1 is located at the top of the main distillation device 1. The return pipe 17 and the water pump can return a portion of the liquid on the discharge pipe 7 to the main distillation device 1.

[0030] 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.

[0031] Although the 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 isotope cryogenic distillation separation device, comprising a main distillation device (1), characterized in that: The main rectification device (1) is fixedly connected to a steam inlet pipe (3), the steam inlet pipe (3) is provided with a U-shaped condensation separation component, the condensation separation component comprising a collection component, a cooling component and a reflux component; The cooling component comprises a condensing jacket (11) and a cooling liquid pipe (12), the collecting component is located in the condensing jacket (11), two shunt pipes (13) are installed on the cooling liquid pipe (12), the ends of the two shunt pipes (13) away from the cooling liquid pipe (12) are fixedly connected to an annular pipe (14), the annular pipe (14) is fixedly connected to a circumferentially arranged discharge pipe (15), and the end of the discharge pipe (15) away from the annular pipe (14) is located in the condensing jacket (11).

2. The isotope cryogenic distillation separation device according to claim 1, characterized in that: The collecting assembly comprises a first cooling tube (4), a second cooling tube (5) and a third cooling tube (6); two ends of the second cooling tube (5) are respectively fixedly connected to the first cooling tube (4) and the third cooling tube (6); an end of the first cooling tube (4) away from the second cooling tube (5) is fixedly connected to the steam inlet tube (3).

3. The isotope cryogenic distillation separation device according to claim 2, characterized in that: The middle section of the second cooling tube (5) is fixedly connected to a drain pipe (7), and the drain pipe (7) is away from the condensation jacket (11) at one end of the second cooling tube (5) and extends to the outside of the condensation jacket (11).

4. The isotope cryogenic distillation separation device according to claim 2, characterized in that: The reflux assembly comprises an air pump (9) installed on the main distillation device (1); the input end of the air pump (9) is fixedly connected to a steam outlet pipe (8), and the steam outlet pipe (8) is connected to a third cooling pipe (6); the output end of the air pump (9) is fixedly connected to a reflux pipe (10), and the reflux pipe (10) is fixedly connected to the bottom of the main distillation device (1).

5. The isotope cryogenic distillation separation device according to claim 1, characterized in that: The middle section of the condensation jacket (11) is fixedly connected to a drainage pipe (16).

6. The isotope cryogenic distillation separation device according to claim 1, characterized in that: A resistance heater is arranged in the main rectification device (1), and a liquid inlet pipe (2) is fixedly connected to the main rectification device (1).

7. The isotope cryogenic distillation separation device according to claim 3, characterized in that: The liquid discharge pipe (7) is fixedly connected to a liquid return pipe (17), one end of the liquid return pipe (17) is fixedly connected to the main distillation device (1), and a water pump is installed on the liquid return pipe (17).

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