A high efficiency separation device

Abstract

This invention relates to the field of separation device technology, and more specifically, to a high-efficiency separation device, comprising a heating assembly, a first container, a distillation channel, a condensation channel, a cooling assembly, a second container, and a reflux pipe. The first container, the distillation channel, the condensation channel, and the second container are sequentially connected. The reflux pipe connects the condensation channel and the distillation channel. The heating assembly is used to heat the first container, and the cooling assembly is used to cool the condensation channel. The distillation channel is provided with multiple layers of packing material, which are tightly packed on the outside and loosely packed on the inside. When using the high-efficiency separation device of this invention to distill and separate multi-component mixtures, the rising gas and reflux liquid tend to penetrate the interior of the packing layer more readily upon reaching it, reducing the upward movement of gas along the inner wall of the channel and the reflux of liquid along the inner wall of the channel. This fully utilizes the structure of the packing layer to facilitate contact between the gas and liquid phases, thereby improving mass transfer efficiency and ultimately improving separation efficiency.

Description

Technical Field

[0001] This invention relates to the field of separation device technology, and in particular to a high-efficiency separation device. Background Technology

[0002] Distillation is a phase change process that causes partial vaporization or condensation of multi-component mixtures. The more volatile components of the raw material are concentrated in the vapor phase, while the less volatile components are concentrated in the liquid phase, thus separating the raw materials according to their volatility. There are three types of distillation: flash distillation, simple distillation, and rectification. Rectification is essentially a process of multiple equilibrium vaporization and condensation, achieving more complete separation and higher product yield. Therefore, rectification is widely used in material separation and purification in environmental protection, petrochemical, biopharmaceutical, and fine chemical industries, such as the separation of organic solvents like NMP and IPA.

[0003] In the distillation process, multiple contact stages are set up in the distillation channel. Each stage has both gas and liquid feeds. The concentration of light components in the liquid reflux should be higher than the equilibrium liquid concentration under that stage condition, while the concentration of light components in the gas feed should be lower than the equilibrium gas concentration under that condition. Since the gas and liquid phase concentrations are not in equilibrium at each stage, with the liquid phase concentration being higher than the equilibrium concentration and the gas phase concentration being lower than the equilibrium concentration, a mass transfer driving force is generated. When the gas and liquid phases come into contact, the light components in the liquid phase evaporate, and the heavy components in the gas phase condense. The gas and liquid phases tend to reach phase equilibrium. Finally, through multiple equilibrium vaporization and condensation at multiple contact stages, distillation is achieved.

[0004] In existing technologies, distillation channels utilize multiple layers of packing material as contact stages. These packing layers are categorized into bulk packing and structured packing. Both types aim to create gaps and pores within the distillation channel, allowing for more thorough contact between the gas and liquid phases, improving mass transfer efficiency, and thus more effectively separating different components in the mixture. Typically, the packing density within the layer is relatively uniform. While this facilitates uniform contact between the gas and liquid phases, the gas phase near the outer edge of the packing layer tends to rise along the channel wall, and the liquid phase tends to descend along the same wall. This contact between the gas and liquid phases on the inner wall prevents full utilization of the packing structure for gas-liquid contact, reducing mass transfer efficiency and consequently decreasing separation efficiency. Summary of the Invention

[0005] In order to make full use of the structure of the packing layer in the distillation channel to improve the mass transfer efficiency and thus improve the separation efficiency, this application provides a high-efficiency separation device.

[0006] The high-efficiency separation device provided by this invention adopts the following technical solution:

[0007] A high-efficiency separation device includes a heating assembly, a first container, a distillation channel, a condensation channel, a cooling assembly, a second container, and a reflux pipe. The first container, the distillation channel, the condensation channel, and the second container are connected in sequence. The reflux pipe is connected between the condensation channel and the distillation channel. The heating assembly is used to heat the first container, and the cooling assembly is used to cool the condensation channel. The distillation channel is provided with multiple layers of packing material, which are tightly packed on the outside and loosely packed on the inside.

[0008] Preferably, the multiple packing layers are spaced apart along the axial direction of the distillation channel, so that free gaps are formed between adjacent packing layers.

[0009] Preferably, the heating assembly includes a constant temperature chamber disposed outside the first container, a circulation pipeline is provided between the constant temperature chamber and the first container, both ends of the circulation pipeline pass through the first container and are respectively the liquid inlet and liquid outlet, the circulation pipeline also passes through the constant temperature chamber, and a circulation pump is provided on the circulation pipeline.

[0010] Preferably, the packing material in the packing layer is bulk packing material, and the packing material in the packing layer is spherical.

[0011] Preferably, the packing material in the packing layer is a structured packing material, and the packing material in the packing layer is a fibrous material.

[0012] Preferably, the packing layer includes a support plate, a partition plate, and a clamping plate. The support plate is the bottom plate of the packing layer, and the clamping plate is the top plate of the packing layer. The support plate and the clamping plate are respectively provided with a first hole and a second hole. The partition plate is fixedly connected between the support plate and the clamping plate. The partition plate is annular and divides the packing in the packing layer into an outer and an inner part. The partition plate is provided with a third hole.

[0013] Preferably, both the support plate and the clamping plate are arc-shaped plates, with the center of the support plate concave upwards and the center of the clamping plate concave downwards.

[0014] Preferably, the first container is provided with a liquid level sensor and an expansion component. A controller is connected between the liquid level sensor and the expansion component. The liquid level sensor is used to monitor the liquid level in the first container and transmit the monitoring signal to the controller. The controller is set with a liquid level threshold. When the controller receives a monitoring signal that the liquid level is lower than the liquid level threshold, the controller controls the expansion component to expand in the first container.

[0015] Preferably, the expansion assembly includes a fixed box and a movable box. The fixed box is fixedly disposed inside the first container and has an opening on one side. The movable box is horizontally telescopically disposed on the opening side of the fixed box. A driving component is fixedly disposed inside the fixed box and is connected to the movable box to drive the movable box to extend and retract.

[0016] Preferably, the expansion assembly is located between the inlet and outlet ends of the circulation pipeline.

[0017] The beneficial effects of this invention are as follows:

[0018] 1. The lower packing density inside the packing layer creates larger gaps and pores, while the higher packing density outside the packing layer creates smaller gaps and pores. When rising gas and returning liquid reach the packing layer, they tend to penetrate the interior of the packing layer more, reducing the amount of gas rising along the inner wall of the channel and liquid flowing back along the inner wall of the channel. This fully utilizes the structure of the packing layer to make contact between the gas and liquid phases, thereby improving mass transfer efficiency and separation efficiency.

[0019] 2. Because the center of the support plate is concave upward and the center of the clamping plate is concave downward, when the gas reaches the position of the support plate during the rising process, the shape of the support plate can guide the rising gas to the inner packing of the packing layer. When the liquid reaches the position of the clamping plate during the reflux process, the shape of the clamping plate can guide the refluxing liquid to the inner packing of the packing layer. This makes it easier for the gas and liquid phases to enter the less dense interior of the packing layer when passing through the packing layer which is tight on the outside and loose on the inside. This further reduces the situation where the gas rises along the inner wall of the channel or the liquid refluxes along the inner wall of the channel.

[0020] 3. When a monitoring signal indicating that the liquid level is below the liquid level threshold is received, the controller controls the expansion component to expand in the first container. By increasing the space occupied by the expansion component in the first container, the liquid level in the first container is raised again. This solves the problem that as the liquid level decreases, the height difference between the liquid level and the bottom packing layer gradually increases, causing volatile substances to lose more heat as they reach the bottom packing layer, resulting in a smaller temperature gradient. Consequently, the bottom packing layer cannot guarantee that it can still obtain a high concentration of heavy components, ultimately affecting the separation quality.

[0021] 4. By placing the expansion component between the inlet and outlet of the circulation pipeline, the stirring effect of the mixed raw materials in the first container can be improved. Attached Figure Description

[0022] Figure 1 This is an overall structural diagram of the high-efficiency separation device in the embodiments of this application;

[0023] Figure 2This is a cross-sectional view of the structure between the first container and the constant temperature chamber in an embodiment of this application;

[0024] Figure 3 This is a cross-sectional view of the distillation channel in an embodiment of this application;

[0025] Figure 4 This is a schematic diagram of the support plate, clamping plate and partition plate of the filler layer in the embodiments of this application.

[0026] Explanation of reference numerals in the attached drawings: 1. Frame; 21. First container; 211. First drain outlet; 212. First level gauge; 22. Second container; 221. Second drain outlet; 222. Second level gauge; 31. Distillation channel; 32. Condensation channel; 4. Packing layer; 41. Support plate; 410. First hole; 42. Pressure plate; 420. Second hole; 43. Partition; 430. Third hole; 5. Constant temperature chamber; 51. Heating element. 511. Steam inlet; 512. Steam outlet; 52. Cooling cylinder; 521. First cooling water inlet; 522. First cooling water outlet; 6. Circulation pipeline; 61. Liquid inlet; 62. Liquid outlet; 71. Circulation pump; 72. Vacuum pump; 8. Cooling tank; 81. Second cooling water inlet; 91. Liquid level sensor; 92. Fixed box; 93. Movable box; 94. Oil cylinder; 95. Oil pipe; 96. Air pipe; 10. Return pipe. Detailed Implementation

[0027] The following will be combined with the appendix Figure 1-4 The present invention will be further illustrated by the embodiments.

[0028] This embodiment discloses a high-efficiency separation device.

[0029] Reference Figures 1 to 3The high-efficiency separation device includes a heating component, a first container 21, a distillation channel 31, a condensation channel 32, a cooling component, a second container 22, and a reflux pipe 10. The first container 21, the distillation channel 31, the condensation channel 32, and the second container 22 are connected in sequence. The reflux pipe 10 is connected between the condensation channel 32 and the distillation channel 31. The first container 21 is used to load multi-component mixture raw materials in the early stage of distillation and to load high-purity heavy products in the later stage of distillation. The second container 22 is used to load gas phase distillate to obtain high-purity light products. The heating component is used to heat the mixture raw materials in the first container 21. The cooling component is used to condense the gas phase in the condensation channel 32 and reflux it to the distillation channel 31. The distillation channel 31 is provided with multiple layers of packing 4, which serve as multiple contact stages between the gas and liquid phases. The distillation process is as follows: the heating component heats the mixed raw material in the first container 21, and different substances in the mixed raw material volatilize to different degrees. The gas and liquid phases sequentially contact and transfer mass along multiple packing layers 4 of the distillation channel 31 to evaporate the light components in the liquid phase and continuously rise, and to condense the heavy components in the gas phase and reflux. Finally, after multiple equilibrium vaporization and condensation processes, high-purity heavy products and high-purity light products are separated and loaded into the first container 21 and the second container 22 respectively.

[0030] Reference Figure 3 In this invention, the packing layer 4 is tight on the outside and loose on the inside, that is, the packing density inside the packing layer 4 is lower and the packing density on the outside is higher. The effect of the above design is that the lower packing density inside the packing layer 4 creates larger gaps and pores, while the higher packing density on the outside of the packing layer 4 creates smaller gaps and pores. When the rising gas and the returning liquid reach the packing layer 4, they tend to penetrate the interior of the packing layer 4 more, reducing the situation where the gas rises along the inner wall of the channel and the liquid flows back along the inner wall of the channel. This makes full use of the structure of the packing layer 4 to make contact between the gas and liquid phases, thereby improving the mass transfer efficiency and thus improving the separation efficiency.

[0031] In this embodiment, the packing layer 4 uses spherical materials as bulk packing. The spherical materials have a large surface area, which facilitates sufficient contact between the gas and liquid phases within the packing layer 4. To achieve a tighter outer layer and a looser inner layer, fewer spherical materials can be filled inside the packing layer 4 and more spherical materials can be filled on the outer layer, or larger diameter spherical materials can be filled inside the packing layer 4 and smaller diameter spherical materials can be filled on the outer layer. In other embodiments, the packing layer 4 can also use fibrous materials as structured packing, as long as the fiber density on the outer layer of the packing layer 4 is greater than the fiber density inside the packing layer 4. Fibrous materials also have a large surface area, which facilitates sufficient contact between the gas and liquid phases within the packing layer 4.

[0032] In this embodiment, the distillation channel 31 is a circular channel, and correspondingly, the packing layer 4 is a circular layer. The packing layer 4 has different packing densities from the inside to the outside in the radial direction, thereby forming a packing structure that is tight on the outside and loose on the inside.

[0033] Reference Figure 3 The multi-layered packing layers 4 are sequentially spaced along the axial direction of the distillation channel 31, creating free gaps between adjacent packing layers 4. These free gaps allow for thorough mixing of the gas and liquid phases between the two packing layers 4. This thorough mixing precedes the next stage of vaporization and condensation, preventing uneven distribution of the gas and liquid phases in parts of the packing layer 4 and avoiding contact blind zones within the packing layer 4. This further improves the utilization rate of the packing layer 4. In this embodiment, the gap size of the free gaps is proportional to the thickness of the packing layer 4, ensuring sufficient space for thorough mixing of the gas and liquid phases.

[0034] Reference Figure 2 The heating assembly includes a constant temperature chamber 5, located outside the first container 21. A circulation pipe 6 is provided between the constant temperature chamber 5 and the first container 21. The circulation pipe 6 is an open-loop pipe with an inlet end 61 and an outlet end 62. The inlet end 61 of the circulation pipe 6 extends from outside the first container 21 into the first container 21, and the outlet end 62 extends from inside the first container 21 outwards. The portion of the circulation pipe 6 outside the first container 21 passes through the constant temperature chamber 5. A circulation pump 71 is also provided in the circulation pipe 6 between the constant temperature chamber 5 and the first container 21. Through the above arrangement, the circulation pump 71 circulates the mixed raw materials between the first container 21 and the constant temperature chamber 5. The heating assembly heats the multi-component mixed raw materials outside the first container 21, avoiding direct heating inside the first container 21 that could lead to localized overheating, thereby improving the volatilization effect of the multi-component mixed raw materials in the first container 21. In addition, the circulation of the circulation pump 71 also stirs the mixed raw materials in the first container 21.

[0035] Reference Figure 2The constant temperature chamber 5 is equipped with a heating component and a cooling component. The heating component includes a heating cylinder 51 and a steam inlet 511 and a steam outlet 512 located within the heating cylinder 51. A circulation pipe 6 passes through the heating cylinder 51, and the steam inlet 511 and steam outlet 512 supply steam to and from the heating cylinder 51, respectively. The cooling component includes a cooling cylinder 52 and a first cooling water inlet 521 and a first cooling water outlet 522 located within the cooling cylinder 52. The circulation pipe 6 also passes through the cooling cylinder 52, and the first cooling water inlet 521 and first cooling water outlet 522 supply cooling water to and from the cooling cylinder 52, respectively. By installing the heating and cooling components within the constant temperature chamber 5, constant temperature control of the mixed raw materials is achieved, thereby improving the volatilization effect of the mixed raw materials. In addition, the inner wall of the constant temperature chamber 5 is provided with an insulation layer to reduce heat loss within the constant temperature chamber 5 and improve energy utilization efficiency. In other embodiments, the heating component can be adjusted to include a heating cylinder 51 and an oil inlet and an oil outlet opened in the heating cylinder 51. The oil inlet and the oil outlet are respectively used for heat transfer oil to enter and exit the heating cylinder 51, which can also achieve the heating effect of the heating cylinder 51 on the mixed raw materials in the circulation pipeline 6.

[0036] Reference Figure 1 The cooling assembly includes a cooling box 8 and a cooling coil installed inside the cooling box 8. The cooling box 8 is fitted onto the condensation channel 32 so that the cooling coil is located outside the condensation channel 32. The two ends of the cooling coil are a second cooling water inlet 81 and a second cooling water outlet, respectively. The second cooling water inlet 81 and the second cooling water outlet allow cooling water to enter and exit the cooling coil, respectively, so as to condense the gas phase in the condensation channel 32 and reflux or collect it.

[0037] Reference Figure 1 The high-efficiency separation device of the present invention also includes a vacuum pump 72, which is used to maintain a negative pressure state within the device to lower the boiling point of the multi-component mixture raw materials, thereby achieving the effect of saving energy. In this embodiment, the vacuum pump 72 is located outside the condensation channel 32, and the vacuum port of the vacuum pump 72 is connected to the condensation channel 32.

[0038] Reference Figure 1 The bottom of the first container 21 and the second container 22 are respectively provided with a first drain port 211 and a second drain port 221, which are used to discharge the separated heavy product and light product, respectively. Furthermore, the first container 21 and the second container 22 are respectively provided with a first level gauge 212 and a second level gauge 222, which are used to display the liquid level in the first container 21 and the second container 22, respectively. The first container 21 is also provided with a thermometer, which is used to display the temperature inside the first container 21, so that the staff can adjust the temperature inside the constant temperature chamber 5 according to the real-time temperature.

[0039] Reference Figure 3 and Figure 4 In this invention, each packing layer 4 includes a support plate 41, a partition plate 43, and a clamping plate 42. The outer contours of the support plate 41 and the clamping plate 42 correspond to the inner contours of the distillation channel 31. The support plate 41 is fixedly installed in the distillation channel 31 as the bottom plate of the packing layer 4, and the clamping plate 42 is fixedly installed in the distillation channel 31 as the top plate of the packing layer 4. The packing material of the packing layer 4 is filled between the support plate 41 and the clamping plate 42. The support plate 41 and the clamping plate 42 are respectively provided with a first hole 410 and a second hole 420. The first hole 410 of the support plate 41 is used to allow rising gas to enter the packing layer 4, and the second hole 420 of the clamping plate 42 is used to allow reflux liquid to enter the packing layer 4. The partition plate 43 is fixedly connected between the support plate 41 and the clamping plate 42. The partition plate 43 is annular and is used to divide the packing in the packing layer 4 into two parts: an outer periphery and an inner periphery. Furthermore, the partition plate 43 has a third hole 430, which connects the interior and exterior of the packing layer 4. The purpose is that the gas and liquid phases that have entered the exterior of the packing layer 4 can also enter the interior of the packing layer 4 through the third hole 430, further reducing the situation where gas rises along the inner wall of the channel or liquid flows back along the inner wall of the channel.

[0040] Reference Figure 3 and Figure 4 Both the support plate 41 and the clamping plate 42 are arc-shaped plates. Specifically, the center of the support plate 41 is concave upwards, and the center of the clamping plate 42 is concave downwards. This allows the shape of the support plate 41 to guide the rising gas to the internal packing of the packing layer 4 when it reaches the position of the support plate 41 during the rising process. Similarly, the shape of the clamping plate 42 can guide the returning liquid to the internal packing of the packing layer 4 when it reaches the position of the clamping plate 42 during the reflux process. This makes it easier for the gas and liquid phases to enter the less dense interior of the packing layer 4 when passing through the packing layer 4, which is tight on the outside and loose on the inside. This further reduces the possibility of gas rising along the inner wall of the channel or liquid refluxing along the inner wall of the channel.

[0041] Reference Figures 2 to 3Within the distillation pipe, the temperature of each packing layer 4 gradually decreases from bottom to top, forming a temperature gradient. The temperature of the topmost packing layer 4 is the lowest, ensuring a high concentration of light components, while the temperature of the bottommost packing layer 4 is the highest, ensuring a high concentration of heavy components. Therefore, a reasonable temperature gradient is a crucial prerequisite for efficient separation in this invention. As the separation process continues, the light components in the first container 21 gradually separate into lighter products and are transferred to the second container 22, causing the liquid level in the first container 21 to gradually decrease. As the liquid level decreases, the height difference between the liquid level and the bottommost packing layer 4 gradually increases. This causes more heat loss by volatile substances as they reach the bottommost packing layer 4, reducing the temperature gradient and making it impossible for the bottommost packing layer 4 to maintain a high concentration of heavy components, ultimately affecting the separation quality. Therefore, the efficient separation device of this invention further incorporates the following improvements.

[0042] Reference Figure 2 The first container 21 is equipped with a liquid level sensor 91 and an expansion component. A controller is connected between the liquid level sensor 91 and the expansion component. The liquid level sensor 91 is used to monitor the liquid level in the first container 21 and transmit the monitoring signal to the controller. The controller, through a corresponding control program and inputting a liquid level threshold, controls the expansion component to expand in the first container 21 when it receives a monitoring signal that the liquid level is lower than the liquid level threshold. By increasing the space occupied by the expansion component in the first container 21, the liquid level in the first container 21 is raised again. This solves the problem that as the liquid level decreases, the height difference between the liquid level and the bottom packing layer 4 gradually increases, causing the volatile substances to lose more heat as they reach the bottom packing layer 4, resulting in a smaller temperature gradient. Consequently, the bottom packing layer 4 cannot guarantee that it can still obtain high concentrations of heavy components, ultimately affecting the separation quality.

[0043] Reference Figure 2The expansion assembly includes a fixed box 92 and a movable box 93, both of which are hollow. The fixed box 92 is fixedly installed at the bottom of the first container 21, with an opening on one side. The movable box 93 is horizontally telescopically installed on the open side of the fixed box 92. A driving component is also fixedly installed inside the fixed box 92, connected to the movable box 93 and used to drive the movable box 93 to extend and retract. When the driving component controls the movable box 93 to extend outward, the expansion assembly expands within the first container 21. Furthermore, the inner end of the movable box 93 is also open to provide sufficient space for the driving component to be installed within the fixed box 92. In other embodiments, the expansion assembly may include an air bladder connected to an external inflation / deflation device. Inflating the air bladder also achieves the expansion effect within the first container 21. Since a level gauge is installed on the first container 21, the operation of the expansion assembly can be determined by observing the level gauge. If the operator finds that the liquid level in the first container 21 is low, the expansion assembly can be inspected and repaired promptly.

[0044] Reference Figure 2 The driving component is a hydraulic cylinder 94, which is fixedly installed inside the fixed box 92. The telescopic end of the hydraulic cylinder 94 is fixedly connected to the movable box 93, and the telescopic direction of the hydraulic cylinder 94 is parallel to the telescopic direction of the movable box 93, so as to achieve the effect of the hydraulic cylinder 94 driving the movable box 93 to telescopic. Furthermore, the hydraulic cylinder 94 is connected to two oil pipes 95, which are used to introduce or release oil into the hydraulic cylinder 94 to control its telescopic movement. The two oil pipes 95 pass through the side openings of the fixed box 92, and then pass through the first container 21 to connect to the external hydraulic pressure control station. The controller is specifically connected to the hydraulic pressure control station to realize the telescopic control of the hydraulic cylinder 94. Additionally, the fixed box 92 is connected to a gas pipe 96. One end of the gas pipe 96, away from the fixed box 92, extends beyond the first container 21 and connects to the top of the distillation channel. This maintains a stable internal and external pressure difference between the fixed box 92 and the movable box 93, preventing excessive pressure differences and allowing the movable box 93 to extend and retract more smoothly. In other embodiments, the drive component can also be a motor or similar device, as long as it enables control of the extension and retraction of the movable box 93.

[0045] It is important to note that, to prevent the mixed raw materials from entering between the fixed box 92 and the movable box 93, sealing measures must be implemented at the points where the oil pipe 95 and the air pipe 96 penetrate the fixed box 92. This could involve embedding rubber, ceramic, or metal sealing rings. Similarly, sealing measures should be implemented between the fixed box 92 and the movable box 93. This can be achieved by embedding a high-temperature resistant sealing ring on the sliding contact surface between the fixed box 92 and the movable box 93, or by improving the fitting precision between the fixed box 92 and the movable box 93. In other embodiments, other sealing measures from the prior art can also be used, as long as they can prevent or reduce the entry of the mixed raw materials in the first container 21 between the fixed box 92 and the movable box 93.

[0046] Reference Figure 2 The fixed box 92 and the movable box 93 are located between the liquid inlet 61 and the liquid outlet 62 of the circulation pipeline 6, so that the mixed raw materials entering the first container 21 from the liquid inlet 61 need to bypass the fixed box 92 and the movable box 93 before reaching the liquid outlet 62, thereby improving the stirring effect of the mixed raw materials in the first container 21.

[0047] Reference Figure 1 The high-efficiency separation device of the present invention also includes a frame 1, which is a three-tiered frame. A first container 21 and a constant temperature chamber 5 are located on the first tier, a circulating pump 71 is located at the bottom of the first container 21, a second container 22 is located on the second tier, and a cooling chamber 8 and a vacuum pump 72 are located on the third tier. A distillation channel 31 extends from the first tier to the third tier, and a condensation channel 32 extends from the third tier to the second tier, thus allowing the main body of the high-efficiency separation device to be mounted on the frame 1. All three tiers of the frame 1 are equipped with railings to ensure the safety of workers operating on the frame. Each tier has a ladder at its bottom to facilitate vertical movement of workers on the frame 1. Furthermore, the ladders on each tier are staggered vertically to prevent them from being aligned in the same vertical direction, further improving the safety of workers operating on the frame 1.

[0048] The above are all preferred embodiments of the present invention 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 high-efficiency separation device, characterized in that: The system includes a heating assembly, a first container (21), a distillation channel (31), a condensation channel (32), a cooling assembly, a second container (22), and a reflux pipe (10). The first container (21), the distillation channel (31), the condensation channel (32), and the second container (22) are connected sequentially. The reflux pipe (10) connects the condensation channel (32) and the distillation channel (31). The heating assembly is used to heat the first container (21), and the cooling assembly is used to cool the condensation channel (32). The distillation channel (31) is provided with multiple layers of packing (4). The packing layer (4) includes a support plate (41), a partition plate (43), and a clamping plate (42). The support plate (41) is the support of the packing layer. 4) The bottom plate, the pressing plate (42) is the top plate of the packing layer (4), the support plate (41) and the pressing plate (42) are respectively provided with a first hole (410) and a second hole (420), the partition plate (43) is fixedly connected between the support plate (41) and the pressing plate (42), the partition plate (43) is annular and divides the packing in the packing layer (4) into two parts: the outer periphery and the inner periphery, the partition plate (43) is provided with a third hole (430); the packing layer (4) is tight on the outside and loose on the inside, the packing density inside the packing layer (4) is low and the packing density on the periphery is high, the multiple packing layers (4) are distributed at intervals along the axial direction of the distillation channel (31) so that a free gap is formed between adjacent packing layers (4).

2. The high-efficiency separation device according to claim 1, characterized in that: The heating assembly includes a constant temperature chamber (5) disposed outside the first container (21). A circulation pipe (6) is provided between the constant temperature chamber (5) and the first container (21). Both ends of the circulation pipe (6) pass through the first container (21) and are respectively the liquid inlet (61) and the liquid outlet (62). The circulation pipe (6) also passes through the constant temperature chamber (5). A circulation pump (71) is provided on the circulation pipe (6).

3. The high-efficiency separation device according to claim 1, characterized in that: The packing material in the packing layer (4) is bulk packing, and the packing material in the packing layer (4) is spherical.

4. The high-efficiency separation device according to claim 1, characterized in that: The packing material in the packing layer (4) is a structured packing material, and the packing material in the packing layer (4) is a fibrous material.

5. The high-efficiency separation device according to claim 1, characterized in that: Both the support plate (41) and the clamping plate (42) are arc-shaped plates. The center of the support plate (41) is concave upwards, and the center of the clamping plate (42) is concave downwards.

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