Naphtha rectifying tower condensation and reflux integrated device

Abstract

The utility model discloses a naphtha rectifying tower condensation and reflux integrated device, and relates to the technical field of rectifying towers, the naphtha rectifying tower condensation and reflux integrated device comprises a guide assembly, the guide assembly is used for guiding naphtha; the stripping assembly is arranged in an inner cavity of the guide assembly, and the stripping assembly is used for carrying out stripping treatment on naphtha; the naphtha stripping device comprises a guide assembly and a condensation assembly, the condensation assembly is arranged at the upper position of the guide assembly, the condensation assembly is used for condensing steam, the guide assembly comprises a shell, and an annular ring is arranged at the lower position of the outer side of the shell. Therefore, compared with an independent condenser and an independent reflux device, the occupied area and the space requirement can be obviously reduced, and the mass transfer efficiency can be improved.

Description

Technical Field

[0001] This utility model relates to the field of distillation column technology, specifically to an integrated condensation and reflux device for naphtha distillation columns. Background Technology

[0002] Naphtha is a light petroleum product obtained by distilling crude oil or by fractionating specific components during secondary petroleum processing. Its boiling point range depends on the application and is typically a wide range. Naphtha has various boiling ranges depending on its intended use. It is mainly used as a reforming and chemical feedstock, and can be used to separate various organic feedstocks, such as gasoline, benzene, kerosene, and asphalt. Naphtha is an important feedstock for the production of ethylene and propylene via tubular furnace cracking, and for the production of benzene, toluene, and xylene via catalytic reforming. Naphtha distillation columns are key equipment for separating different components from naphtha. Distillation is a unit operation that separates components in a mixture based on their different volatility. In a naphtha distillation column, by controlling conditions such as temperature and pressure, different hydrocarbons in naphtha can be separated according to their boiling points, yielding products with different boiling point ranges.

[0003] Existing naphtha distillation columns, while capable of refining naphtha, cannot be integrated into a single unit, leading to increased connection points and reduced reliability. Therefore, we propose an integrated condenser-reflux device for naphtha distillation columns to address these issues. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an integrated condensation and reflux device for naphtha distillation towers, solving the problem of incompatibility.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: an integrated condensation and reflux device for naphtha distillation tower, comprising a guiding component, wherein the guiding component is used to guide naphtha;

[0006] A distillation assembly, disposed within the cavity of the guide assembly, is used for distilling naphtha; and

[0007] A condensing component is disposed above the guiding component, and the condensing component is used to condense steam.

[0008] Preferably, the guiding component includes a housing, an annular ring is provided at the lower outer side of the housing, a support column is provided on the bottom surface of the annular ring, three support columns are provided in a ring, an inlet pipe is provided at the upper outer side of the housing, an outlet pipe is provided at the center of the bottom surface of the housing, an air inlet pipe is provided at the lower outer side of the housing, and a limit hole is provided on the top surface of the housing.

[0009] Preferably, the distillation assembly includes a support ring disposed in the inner cavity of the outer shell, a support grid is disposed on the top surface of the support ring, and a packing layer is disposed on the top surface of the support grid.

[0010] Preferably, the outer diameter of the support ring when viewed from above is the same as the inner diameter of the outer shell when viewed from above, and the two are compatible.

[0011] Preferably, the condensation assembly includes a support plate, which is located at the upper part of the inner cavity of the outer shell. An outlet pipe is provided at the center of the bottom surface of the support plate, and a condenser is provided on the top surface of the support plate. An outlet pipe is provided at the top output end of the condenser, and a return pipe is provided at one output end of the condenser. A liquid redistributor is provided at the output end of the return pipe.

[0012] Preferably, the top-view outer diameter of the output tube is the same as the top-view inner diameter of the limiting hole, and the two are compatible.

[0013] Preferably, the outer diameter of the support plate when viewed from above is the same as the inner diameter of the outer shell when viewed from above, and the two are compatible.

[0014] Beneficial effects

[0015] This invention provides an integrated condensation and reflux device for naphtha distillation columns. Compared with existing technologies, it has the following advantages:

[0016] This integrated condenser-reflux device for naphtha distillation towers allows for naphtha stripping. First, the guiding component is placed in a preset position, then the stripping component is placed inside the guiding component's cavity. This provides support for the stripping component, guiding the naphtha for stripping. A condenser component is fixedly connected to the upper part of the guiding component's cavity, supporting the condenser component and allowing it to condense the vapor, thus improving product purity. The integration of the condenser, guiding component, and stripping component results in a compact structure, small footprint, fewer connection points, and improved reliability and safety. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall cross-sectional structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the guiding component structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the distillation component structure of this utility model;

[0020] Figure 4This is a schematic diagram of the condenser assembly structure of this utility model.

[0021] In the diagram: 1. Guiding assembly; 11. Outer shell; 12. Annular ring; 13. Support column; 14. Liquid inlet pipe; 15. Liquid outlet pipe; 16. Gas inlet pipe; 17. Limiting hole; 2. Distillation assembly; 21. Support ring; 22. Support grid; 23. Packing layer; 3. Condensation assembly; 31. Support plate; 32. Gas outlet pipe; 33. Condenser; 34. Product outlet pipe; 35. Reflux pipe; 36. Liquid redistributor. 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 protection scope of the present utility model.

[0023] Please see Figures 1-4 This utility model provides a technical solution: an integrated condensation and reflux device for a naphtha distillation column, comprising a guiding component 1 for guiding naphtha; a stripping component 2 disposed within the inner cavity of the guiding component 1 for stripping naphtha; and a condensing component 3 disposed above the guiding component 1 for condensing steam.

[0024] When naphtha needs to be refined, the guiding component 1 is first placed in a preset position, and then the refining component 2 is placed inside the guiding component 1. This allows the guiding component 1 to support the refining component 2, thereby guiding the naphtha so that the refining component 2 can refine it. Since the condensing component 3 is fixedly connected to the upper part of the inner cavity of the guiding component 1, the guiding component 1 can support the condensing component 3, allowing the condensing component 3 to condense the vapor, thereby improving product purity. At the same time, the condensing component 3, guiding component 1, and refining component 2 are integrated together, resulting in a compact structure, small footprint, reduced connection points, improved reliability, and enhanced safety.

[0025] See Figure 1 , Figure 2The guide component 1 includes a housing 11, an annular ring 12 is provided on the lower outer side of the housing 11, a support column 13 is provided on the bottom surface of the annular ring 12, and three support columns 13 are arranged in a ring. A liquid inlet pipe 14 is provided on the upper outer side of the housing 11, a liquid outlet pipe 15 is provided at the center of the bottom surface of the housing 11, an air inlet pipe 16 is provided on the lower outer side of the housing 11, and a limit hole 17 is provided on the top surface of the housing 11.

[0026] The outer casing 11 in the guide assembly 1 can be placed in a preset position and also provides an installation base for the annular ring 12. Since the bottom surface of the annular ring 12 is fixedly connected to a support column 13, and three support columns 13 are arranged in a ring, the support columns 13 can provide support for the annular ring 12, which in turn can provide support for the outer casing 11, thereby improving the stability of the outer casing 11. A liquid inlet pipe 14 is embedded and connected to the upper outer side of the outer casing 11, and a liquid outlet pipe 15 is embedded and connected to the center of the bottom surface of the outer casing 11. Meanwhile, the outer side of the outer casing 11... An air inlet pipe 16 is embedded in the lower position, and a limiting hole 17 is opened on the top surface of the outer shell 11, so that the outer shell 11 can be a liquid inlet pipe 14, a liquid outlet pipe 15, and an air inlet pipe 16. This allows the operator to add liquid into the inner cavity of the outer shell 11 through the liquid inlet pipe 14, and the liquid in the inner cavity of the outer shell 11 can be discharged through the liquid outlet pipe 15. This allows the operator to add gas into the inner cavity of the outer shell 11 through the air inlet pipe 16, thereby improving convenience. The limiting hole 17 can limit the condenser assembly 3, thereby improving the stability of the condenser assembly 3.

[0027] See Figure 1 , Figure 3 The distillation assembly 2 includes a support ring 21, which is disposed in the inner cavity of the outer shell 11. A support grid 22 is disposed on the top surface of the support ring 21, and a packing layer 23 is disposed on the top surface of the support grid 22. The outer diameter of the support ring 21 in plan view is the same as the inner diameter of the outer shell 11 in plan view, and the two are compatible.

[0028] The support ring 21 in the distillation assembly 2 can be fixedly connected to the inner cavity of the outer shell 11 and can also provide support for the support grid 22. Since the top surface of the support grid 22 is connected to the packing layer 23, the support grid 22 can provide support for the packing layer 23, thereby ensuring that the packing is evenly distributed and stable in the column, and preventing the packing from falling or piling up due to gravity, so as to ensure the uniformity and effectiveness of the packing layer. Then, through the packing layer 23, the fluid turbulence can be increased and the liquid film thickness can be reduced, thereby improving the mass transfer coefficient, so as to promote faster and more complete mass exchange. Then, through the support ring 21, the support ring 21 can provide support for the support grid 22, and the support grid 22 can provide support for the packing layer 23, thereby enhancing the stability of the support.

[0029] See Figure 1 , Figure 4 The condenser assembly 3 includes a support plate 31, which is located at the upper part of the inner cavity of the outer shell 11. An outlet pipe 32 is located at the center of the bottom surface of the support plate 31. A condenser 33 is located on the top surface of the support plate 31. An outlet pipe 34 is located at the top output end of the condenser 33. A return pipe 35 is located at one output end of the condenser 33. A liquid redistributor 36 is located at the output end of the return pipe 35. The outer diameter of the outlet pipe 34 is the same as the inner diameter of the limiting hole 17, and the two are compatible. The outer diameter of the support plate 31 is the same as the inner diameter of the outer shell 11, and the two are compatible.

[0030] The support plate 31 in the condenser assembly 3 can be fixedly connected to the upper part of the inner cavity of the outer shell 11, and also provides an installation base for the outlet pipe 32. Since the condenser 33 is fixedly connected to the top surface of the support plate 31, and the top output end of the condenser 33 is provided with an outlet pipe 34, and the output end of the outlet pipe 32 is connected to the input end of the condenser 33, the support plate 31 can provide support for the condenser 33, thereby allowing steam to enter the interior of the condenser 33 through the outlet pipe 32, so that the condenser 33 can condense the steam. The liquid is condensed and then discharged through the outlet pipe 34, allowing a portion of the condensed liquid to be collected as a product. Since a return pipe 35 is fixedly connected to one output end of the condenser 33, and a liquid redistributor 36 is fixedly connected to the output end of the return pipe 35, another portion of the condensed liquid can flow into the liquid redistributor 36 through the return pipe 35. This ensures that the return liquid is evenly distributed within the column, preventing direct impact on the column's separation efficiency and product quality.

[0031] During operation, when naphtha needs to be refined, the guiding component 1 is first placed in a preset position, and then the refining component 2 is placed inside the guiding component 1. This allows the guiding component 1 to support the refining component 2, thereby guiding the naphtha so that the refining component 2 can refine it. Since the condensing component 3 is fixedly connected to the upper part of the inner cavity of the guiding component 1, the guiding component 1 can support the condensing component 3, allowing the condensing component 3 to condense the vapor, thereby improving product purity. At the same time, the condensing component 3, guiding component 1, and refining component 2 are integrated together, resulting in a compact structure, small footprint, reduced connection points, improved reliability, and enhanced safety.

[0032] The outer casing 11 in the guide assembly 1 can be placed in a preset position and also provides an installation base for the annular ring 12. Since the bottom surface of the annular ring 12 is fixedly connected to a support column 13, and three support columns 13 are arranged in a ring, the support columns 13 can provide support for the annular ring 12, which in turn can provide support for the outer casing 11, thereby improving the stability of the outer casing 11. A liquid inlet pipe 14 is embedded and connected to the upper outer side of the outer casing 11, and a liquid outlet pipe 15 is embedded and connected to the center of the bottom surface of the outer casing 11. Meanwhile, the outer side of the outer casing 11... An air inlet pipe 16 is embedded in the lower position, and a limiting hole 17 is opened on the top surface of the outer shell 11, so that the outer shell 11 can be a liquid inlet pipe 14, a liquid outlet pipe 15, and an air inlet pipe 16. This allows the operator to add liquid into the inner cavity of the outer shell 11 through the liquid inlet pipe 14, and the liquid in the inner cavity of the outer shell 11 can be discharged through the liquid outlet pipe 15. This allows the operator to add gas into the inner cavity of the outer shell 11 through the air inlet pipe 16, thereby improving convenience. The limiting hole 17 can limit the condenser assembly 3, thereby improving the stability of the condenser assembly 3.

[0033] The support ring 21 in the distillation assembly 2 can be fixedly connected to the inner cavity of the outer shell 11 and can also provide support for the support grid 22. Since the top surface of the support grid 22 is connected to the packing layer 23, the support grid 22 can provide support for the packing layer 23, thereby ensuring that the packing is evenly distributed and stable in the column, and preventing the packing from falling or piling up due to gravity, so as to ensure the uniformity and effectiveness of the packing layer. Then, through the packing layer 23, the fluid turbulence can be increased and the liquid film thickness can be reduced, thereby improving the mass transfer coefficient, so as to promote faster and more complete mass exchange. Then, through the support ring 21, the support ring 21 can provide support for the support grid 22, and the support grid 22 can provide support for the packing layer 23, thereby enhancing the stability of the support.

[0034] The support plate 31 in the condenser assembly 3 can be fixedly connected to the upper part of the inner cavity of the outer shell 11, and also provides an installation base for the outlet pipe 32. Since the condenser 33 is fixedly connected to the top surface of the support plate 31, and the top output end of the condenser 33 is provided with an outlet pipe 34, and the output end of the outlet pipe 32 is connected to the input end of the condenser 33, the support plate 31 can provide support for the condenser 33, thereby allowing steam to enter the interior of the condenser 33 through the outlet pipe 32, so that the condenser 33 can condense the steam. The liquid is condensed and then discharged through the outlet pipe 34, allowing a portion of the condensed liquid to be collected as a product. Since a return pipe 35 is fixedly connected to one output end of the condenser 33, and a liquid redistributor 36 is fixedly connected to the output end of the return pipe 35, another portion of the condensed liquid can flow into the liquid redistributor 36 through the return pipe 35. This ensures that the return liquid is evenly distributed within the column, preventing direct impact on the column's separation efficiency and product quality.

[0035] In summary, this device can both distill naphtha and integrate multiple functional modules, thus significantly reducing the floor space and space requirements compared to separate condensers and reflux devices, thereby improving mass transfer efficiency.

[0036] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

Claims

1. A naphtha rectification column condensing reflux integrated device, characterized in that: include: A guiding component (1) is used to guide naphtha; A distillation assembly (2) is disposed in the inner cavity of the guide assembly (1) and is used to distill naphtha. as well as The condensing component (3) is located above the guiding component (1) and is used to condense steam.

2. The integrated condensing reflux naphtha fractionator of claim 1, wherein: The guiding component (1) includes a housing (11), an annular ring (12) is provided on the lower outer side of the housing (11), a support column (13) is provided on the bottom surface of the annular ring (12), and three support columns (13) are arranged around the housing. An inlet pipe (14) is provided on the upper outer side of the housing (11), an outlet pipe (15) is provided on the center of the bottom surface of the housing (11), an air inlet pipe (16) is provided on the lower outer side of the housing (11), and a limit hole (17) is provided on the top surface of the housing (11).

3. The integrated condensing reflux naphtha fractionator of claim 2, wherein: The distillation assembly (2) includes a support ring (21), which is disposed in the inner cavity of the outer shell (11). A support grid (22) is disposed on the top surface of the support ring (21), and a packing layer (23) is disposed on the top surface of the support grid (22).

4. The integrated condensing reflux naphtha fractionator of claim 3, wherein: The outer diameter of the support ring (21) when viewed from above is the same as the inner diameter of the outer shell (11) when viewed from above, and the two are compatible.

5. The naphtha rectifier condensing reflux integrated device according to claim 2, characterized in that: The condensation assembly (3) includes a support plate (31), which is located at the upper part of the inner cavity of the outer shell (11). An outlet pipe (32) is provided at the center of the bottom surface of the support plate (31). A condenser (33) is provided on the top surface of the support plate (31). An outlet pipe (34) is provided at the top output end of the condenser (33). A return pipe (35) is provided at one output end of the condenser (33). A liquid redistributor (36) is provided at the output end of the return pipe (35).

6. The integrated condensation and reflux device for naphtha distillation column according to claim 5, characterized in that: The outer diameter of the output tube (34) when viewed from above is the same as the inner diameter of the limiting hole (17) when viewed from above, and the two are compatible.

7. The integrated condensing reflux naphtha fractionator of claim 5, wherein: The outer diameter of the support plate (31) when viewed from above is the same as the inner diameter of the outer shell (11) when viewed from above, and the two are compatible.

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