A vertical two-stage separation rectifying device
By designing an adjustable drain pipe structure in the separation and distillation unit, the problem of low-density liquid layers being unable to drain was solved, enabling the drain port position to be adjusted according to the liquid layer density, thereby improving the separation and distillation efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUINAN CNBM TENGFENG ENVIRONMENTAL PROTECTION TECH CO LTD
- Filing Date
- 2025-07-29
- Publication Date
- 2026-06-26
AI Technical Summary
In the existing technology, the drain pipe of the separation distillation device cannot be adjusted, which makes it impossible for the low-density liquid layer to be effectively discharged from the device. Especially when there is a large amount of high-density liquid, the low-density liquid layer is located above the upper drain pipe, causing inconvenience in discharge.
A vertical two-stage separation distillation device was designed, which adopts an adjustable drain pipe structure. The moving pipe is driven to move vertically by telescopic and driving components. The position of the drain pipe inlet is adjusted so that it moves into the liquid layer with low density, thereby facilitating the discharge of the liquid layer with low density.
This technology allows for adjusting the position of the drain outlet based on the liquid layer density, ensuring that the less dense liquid layer can be effectively discharged from the device, thus improving the separation and distillation efficiency.
Smart Images
Figure CN224404403U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of distillation apparatus, and in particular to a vertical two-stage separation distillation apparatus. Background Technology
[0002] Distillation typically takes place in a distillation column, where the gas and liquid phases come into countercurrent contact, resulting in interphase heat and mass transfer. The more volatile components in the liquid phase enter the gas phase, while the less volatile components in the gas phase transfer to the liquid phase. Thus, almost pure more volatile components are obtained at the top of the column, and almost pure less volatile components at the bottom. The feed liquid is added from the middle of the column. The section above the feed inlet further concentrates the more volatile components in the rising vapor and is called the rectification section; the section below the feed inlet extracts the more volatile components from the descending liquid and is called the stripping section. The vapor drawn from the top of the column is condensed, with a portion of the condensate returning to the distillation column as reflux, and the remaining distillate becoming the top product.
[0003] In existing technologies, when distilling liquids, the liquid is typically first fed through an inlet pipe into a separate distillation unit. Two drain pipes are vertically installed on this unit. As the liquid flows into the unit, based on the density differences required for production, the denser liquid sinks to the bottom to form a liquid layer, while the less dense liquid rises to the top to form a top liquid layer. The top liquid layer is discharged through the upper drain pipe, and the bottom liquid layer is discharged through the lower drain pipe. However, because the distance between the two drain pipes and their outlets on the separate distillation unit cannot be adjusted, when there is a higher density of liquid, the less dense liquid layer is located above the upper drain pipe, making it difficult to discharge the less dense liquid layer from the separate distillation unit. Utility Model Content
[0004] To address the problem of difficulty in removing low-density liquid layers from the separation distillation unit, this application provides a vertical two-stage separation distillation unit.
[0005] The vertical two-stage separation distillation apparatus provided in this application adopts the following technical solution:
[0006] A vertical two-stage separation distillation apparatus includes a separation tank. An inlet pipe is fixed to the bottom surface of the separation tank and is connected to the separation tank. A first drain pipe and a second drain pipe are fixed to the outer circumference of the separation tank. The second drain pipe is located above the first drain pipe. The first drain pipe and the second drain pipe are respectively connected to the separation tank. An extension member is provided on the second drain pipe for adjusting the distance between the inlet of the second drain pipe and the inlet of the first drain pipe.
[0007] By adopting the above technical solution, when the liquid layer with lower density in the separation distillation unit is higher than the inlet of the second drain pipe and the liquid layer with higher density is located at the inlet of the second drain pipe, the inlet of the second drain pipe can be moved upward by adjusting the telescopic component, so that the inlet of the second drain pipe is moved to the liquid layer with lower density, thereby facilitating the discharge of the liquid layer with lower density from the separation distillation unit.
[0008] Preferably, the second drain pipe includes a vertical pipe and a horizontal pipe. The vertical pipe is located inside the separation tank, and the opening of the vertical pipe is upward. The telescopic component includes a movable pipe that is slidably disposed in the vertical pipe. The separation tank is provided with a driving component for driving the movable pipe to move vertically.
[0009] By adopting the above technical solution, the driving component is activated, which drives the moving tube to move vertically. This facilitates the adjustment of the position of the moving tube opening according to the position of the liquid layer with lower density, so that the moving tube opening moves into the liquid layer with lower density, thereby facilitating the discharge of the liquid layer with lower density from the separation and distillation device.
[0010] Preferably, a moving plate is fixed to the outer circumferential surface of the moving tube, a moving rod is fixed to the bottom surface of the moving plate, a fixing block is fixed to the inner circumferential surface of the separation tank, the driving component includes a driving rod rotatably mounted on the top surface of the fixing block, an insertion groove is provided on the top surface of the driving rod, the bottom end of the moving rod is inserted into the insertion groove, the moving rod is threadedly connected to the inner wall of the insertion groove, and a power component for driving the driving rod to rotate is provided on the separation tank.
[0011] By adopting the above technical solution, the power component is activated, which drives the drive rod to rotate. The drive rod drives the moving rod to move vertically, which in turn drives the moving plate to move vertically, thereby causing the moving plate to drive the moving tube to move vertically.
[0012] Preferably, the power component includes a rotating shaft passing through the outer peripheral surface of the separation tank, the rotating shaft being rotatably connected to the separation tank, a bevel gear one being provided at one end of the rotating shaft near the drive rod, and a bevel gear two being provided on the outer peripheral surface of the drive rod, the bevel gear one meshing with the bevel gear two.
[0013] By adopting the above technical solution, the rotating shaft is rotated, which drives the first bevel gear to rotate. The first bevel gear drives the second bevel gear to rotate, thereby causing the second bevel gear to drive the drive rod to rotate.
[0014] Preferably, a limiting groove is formed on the bottom surface of the movable rod, a limiting rod is fixed on the inner bottom surface of the insertion groove, the limiting rod is inserted into the limiting groove, and the limiting rod is slidably connected to the movable rod in the vertical direction through the limiting groove.
[0015] By adopting the above technical solution, when the drive rod rotates and drives the moving rod to move vertically, the limiting rod moves vertically within the limiting groove, thereby reducing the possibility that the moving rod will follow the drive rod in rotating.
[0016] Preferably, the top end of the moving tube is a tapered opening.
[0017] By adopting the above technical solution, the top of the moving tube is set into a conical opening, which facilitates the flow of liquid into the moving tube.
[0018] Preferably, the inner circumferential surface of the vertical tube is provided with an annular groove, and a ring is sleeved and fixed at the bottom end of the movable tube, with the outer circumferential surface of the ring fitting against the inner circumferential surface of the annular groove.
[0019] By adopting the above technical solution, when the moving tube moves vertically, the moving tube drives the ring to move vertically within the annular groove, thereby reducing the possibility of the moving tube detaching from the vertical tube.
[0020] Preferably, both the first drain pipe and the second drain pipe are fixed with a diversion pipe at the ends away from the separator. One end of the diversion pipe is fixed with a connecting pipe, and the other end of the diversion pipe is fixed with a connecting pipe. The first connecting pipe and the second connecting pipe are respectively connected to the diversion pipe. A valve is provided on the first connecting pipe, and a valve is provided on the second connecting pipe.
[0021] By adopting the above technical solution, the connecting pipe 1 on drain pipe 1 and drain pipe 2 is used to connect to the pretreatment, and the connecting pipe 2 on drain pipe 1 and drain pipe 2 is used to connect to the distillation device. When it is necessary to produce a light liquid, when the connecting pipe 1 on drain pipe 1 is connected to the pretreatment, valve 1 on the connecting pipe 1 is open, and valve 2 on the connecting pipe 2 on drain pipe 1 is closed. At the same time, when the connecting pipe 2 on drain pipe 2 is connected to the distillation device, valve 2 on the connecting pipe 2 is open, and valve 1 on the connecting pipe 1 on drain pipe 2 is closed. When it is necessary to produce a heavy liquid, when the connecting pipe 2 on drain pipe 1 is connected to the distillation device, valve 1 on the connecting pipe 1 on drain pipe 1 is closed. At the same time, when the connecting pipe 1 on drain pipe 2 is connected to the pretreatment, valve 2 on the connecting pipe 2 on drain pipe 2 is closed. This facilitates the production of light and heavy liquids according to production needs.
[0022] In summary, this application includes at least one of the following beneficial technical effects:
[0023] 1. When the liquid layer with lower density in the separation distillation unit is higher than the inlet of the second drain pipe and the liquid layer with higher density is located at the inlet of the second drain pipe, the inlet of the second drain pipe can be moved upward by adjusting the telescopic component, so that the inlet of the second drain pipe is moved to the liquid layer with lower density, thereby facilitating the discharge of the liquid layer with lower density from the separation distillation unit.
[0024] 2. Start the drive unit, which drives the moving tube to move vertically, so as to make it easier to adjust the position of the moving tube inlet according to the position of the liquid layer with lower density, so that the moving tube inlet moves into the liquid layer with lower density, and thus makes it easier to discharge the liquid layer with lower density from the separation and distillation unit.
[0025] 3. When the drive rod rotates and drives the moving rod to move vertically, the limiting rod moves vertically within the limiting groove, thereby reducing the possibility that the moving rod will follow the drive rod in rotation. Attached Figure Description
[0026] Figure 1 This is a schematic diagram of the overall structure of the vertical two-stage separation distillation apparatus according to an embodiment of this application.
[0027] Figure 2 This is a cross-sectional view of the separation tank in an embodiment of this application.
[0028] Figure 3 yes Figure 2 Enlarged diagram of point A in the middle.
[0029] Reference numerals in the attached diagram: 1. Separator; 11. Inlet pipe; 12. Drain pipe one; 13. Drain pipe two; 131. Vertical pipe; 132. Horizontal pipe; 2. Diverter pipe; 21. Connecting pipe one; 22. Connecting pipe two; 23. Valve one; 24. Valve two; 3. Moving pipe; 31. Annular groove; 32. Circular ring; 33. Conical opening; 4. Moving plate; 41. Moving rod; 42. Fixed block; 43. Drive rod; 44. Insertion groove; 45. Limiting groove; 46. Limiting rod; 5. Rotating shaft; 51. Rotating block; 52. Bevel gear one; 53. Bevel gear two. Detailed Implementation
[0030] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.
[0031] This application discloses a vertical two-stage separation distillation apparatus.
[0032] Reference Figure 1 A vertical two-stage separation distillation apparatus includes a separation tank 1. An inlet pipe 11 is fixed to the bottom surface of the separation tank 1 and is connected to the separation tank 1. A first drain pipe 12 and a second drain pipe 13 are fixed to the outer circumference of the separation tank 1. The second drain pipe 13 is located above the first drain pipe 12 and is connected to the separation tank 1.
[0033] Reference Figure 1Both drain pipe 12 and drain pipe 23 have a diversion pipe 2 fixed at the end furthest from the separator 1. One end of the diversion pipe 2 is fixed with a connecting pipe 21, and the other end is fixed with a connecting pipe 22. Connecting pipe 21 and connecting pipe 22 are respectively connected to the diversion pipe 2. A valve 23 is fixed to the outer circumferential surface of connecting pipe 21, and a valve 24 is fixed to the outer circumferential surface of connecting pipe 22.
[0034] Reference Figure 2 and Figure 3 The drain pipe 13 includes a horizontal pipe 132 and a vertical pipe 131 fixed to one end of the horizontal pipe 132. The diversion pipe 2 is fixed to one end of the horizontal pipe 132 and the separation tank 1. The horizontal pipe 132 passes through the outer circumferential surface of the separation tank 1 and is fixedly connected to the separation tank 1. The opening of the vertical pipe 131 is upward and is located inside the separation tank 1. A movable pipe 3 is slidably arranged vertically inside the vertical pipe 131, and the top end of the movable pipe 3 is a conical opening 33. An annular groove 31 is formed on the inner circumferential surface of the vertical pipe 131, and a circular ring 32 is fixed at the bottom end of the movable pipe 3. The outer circumferential surface of the circular ring 32 is in contact with the inner circumferential surface of the annular groove 31.
[0035] Reference Figure 2 and Figure 3 A movable plate 4 is fixed to the outer circumferential surface of the movable tube 3, and a movable rod 41 is fixed to the bottom surface of the movable plate 4. A fixed block 42 is fixed to the inner circumferential surface of the separation tank 1, and a drive rod 43 is rotatably mounted on the top surface of the fixed block 42. An insertion groove 44 is opened on the top surface of the drive rod 43, and the bottom end of the movable rod 41 is inserted into the insertion groove 44. The movable rod 41 is threadedly connected to the inner wall of the insertion groove 44. A limiting groove 45 is opened on the bottom surface of the movable rod 41, and a limiting rod 46 is fixed to the inner bottom surface of the insertion groove 44. The limiting rod 46 is inserted into the limiting groove 45, and the limiting rod 46 is slidably connected to the movable rod 41 vertically through the limiting groove 45.
[0036] Reference Figure 2 and Figure 3 A rotating shaft 5 is provided on the outer circumferential surface of the separation tank 1. The rotating shaft 5 is rotatably connected to the separation tank 1. A rotating block 51 is fixed at the end of the rotating shaft 5 away from the separation tank 1. A bevel gear 52 is sleeved and fixed at the end of the rotating shaft 5 near the drive rod 43. A bevel gear 53 is sleeved and fixed on the outer circumferential surface of the drive rod 43. The bevel gear 52 and the bevel gear 53 mesh with each other.
[0037] The implementation principle of a vertical two-stage separation distillation device according to an embodiment of this application is as follows: When the liquid layer with lower density in the separation distillation device is higher than the inlet of the drain pipe 13 and the liquid layer with higher density is located at the inlet of the drain pipe 13, the rotating shaft 5 is rotated. The rotating shaft 5 drives the bevel gear 52 to rotate. The bevel gear 52 drives the bevel gear 53 to rotate, so that the bevel gear 53 drives the drive rod 43 to rotate. The drive rod 43 drives the moving rod 41 to move vertically. The moving rod 41 drives the moving tube 3 to move vertically, so that the tube opening of the moving tube 3 moves into the liquid layer with lower density, thereby facilitating the discharge of the liquid layer with lower density from the separation distillation device.
[0038] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A vertical two-stage separation distillation apparatus, characterized in that: The system includes a separation tank (1), with an inlet pipe (11) fixed to the bottom surface of the separation tank (1). The inlet pipe (11) is connected to the separation tank (1). A drain pipe (12) and a drain pipe (13) are fixed to the outer circumference of the separation tank (1). The drain pipe (13) is located above the drain pipe (12). The drain pipe (12) and the drain pipe (13) are respectively connected to the separation tank (1). The drain pipe (13) is provided with a telescopic component for adjusting the distance between the inlet of the drain pipe (13) and the inlet of the drain pipe (12).
2. The vertical two-stage separation distillation apparatus according to claim 1, characterized in that: The second drain pipe (13) includes a vertical pipe (131) and a horizontal pipe (132). The vertical pipe (131) is located inside the separation tank (1). The opening of the vertical pipe (131) is set upward. The telescopic component includes a movable pipe (3) that is slidably disposed in the vertical pipe (131). The separation tank (1) is provided with a driving component for driving the movable pipe (3) to move vertically.
3. A vertical two-stage separation distillation apparatus according to claim 2, characterized in that: A moving plate (4) is fixed to the outer circumferential surface of the moving tube (3), a moving rod (41) is fixed to the bottom surface of the moving plate (4), a fixing block (42) is fixed to the inner circumferential surface of the separation tank (1), the driving component includes a driving rod (43) rotatably mounted on the top surface of the fixing block (42), a insertion groove (44) is provided on the top surface of the driving rod (43), the bottom end of the moving rod (41) is inserted into the insertion groove (44), the moving rod (41) is threadedly connected to the inner wall of the insertion groove (44), and a power component for driving the driving rod (43) to rotate is provided on the separation tank (1).
4. A vertical two-stage separation distillation apparatus according to claim 3, characterized in that: The power component includes a rotating shaft (5) that passes through the outer circumferential surface of the separation tank (1). The rotating shaft (5) is rotatably connected to the separation tank (1). A bevel gear (52) is provided at one end of the rotating shaft (5) near the drive rod (43). A bevel gear (53) is provided on the outer circumferential surface of the drive rod (43). The bevel gear (52) meshes with the bevel gear (53).
5. A vertical two-stage separation distillation apparatus according to claim 3, characterized in that: The bottom surface of the movable rod (41) is provided with a limiting groove (45), and the inner bottom surface of the insertion groove (44) is fixed with a limiting rod (46). The limiting rod (46) is inserted into the limiting groove (45), and the limiting rod (46) is slidably connected to the movable rod (41) in the vertical direction through the limiting groove (45).
6. A vertical two-stage separation distillation apparatus according to claim 2, characterized in that: The top end of the moving tube (3) is a conical opening (33).
7. A vertical two-stage separation distillation apparatus according to claim 3, characterized in that: The vertical tube (131) has an annular groove (31) on its inner circumferential surface. The bottom end of the movable tube (3) is fitted with a ring (32), and the outer circumferential surface of the ring (32) is in contact with the inner circumferential surface of the annular groove (31).
8. A vertical two-stage separation distillation apparatus according to claim 1, characterized in that: Both the first drain pipe (12) and the second drain pipe (13) are fixed with a diversion pipe (2) at the end away from the separation tank (1). One end of the diversion pipe (2) is fixed with a connecting pipe (21), and the other end of the diversion pipe (2) is fixed with a connecting pipe (22). The first connecting pipe (21) and the second connecting pipe (22) are respectively connected to the diversion pipe (2). A valve (23) is provided on the first connecting pipe (21), and a valve (24) is provided on the second connecting pipe (22).