Supergravity rectification device

Abstract

The utility model relates to the technical field of rectification equipment, in particular to a supergravity rectification device which comprises a shell, a movable disc, a static disc, a rotating shaft and a driving piece, a plurality of groups of concentric baffling rings are arranged at the bottom of the vertical movable disc at intervals, and fillers are arranged among the baffling rings; a plurality of holes are formed in the baffling ring, straight holes are formed in the sides, close to the bottom of the movable disc and close to the static disc, of the holes, inclined holes are formed in the area, located between the two straight holes, of the baffling ring, and the inclined holes incline upwards from the inner side of the baffling ring to the outer side of the baffling ring; the straight holes are formed in the upper area and the lower area of the baffling ring, and the inclined holes are formed in the middle of the baffling ring, so that when liquid held at the bottom of the movable disc exceeds the straight holes in the lower area, the liquid can pass through the inclined holes in the middle, the liquid is thrown out obliquely upwards in the rotating process of the movable disc, spiral liquid drops thrown out obliquely upwards are formed, and potential difference loss caused by gravity is made up; and holding liquid with a certain thickness is formed at the bottom of the movable disc, so that the thickness of a liquid layer on the movable disc can be controlled, the liquid is more uniform, and the gas-liquid mass transfer effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rectification equipment, in particular to a high-gravity rectification device. Background Technique

[0002] When the boiling points are relatively close, traditional rectification separation is difficult. High-gravity rectification is adopted for rectification separation. A high-gravity rectification device is a device that uses a high-gravity field to perform rectification operations. Traditional rectification devices rely on the natural separation process of liquids and gases under the action of gravity, while high-gravity rectification devices enhance the separation efficiency by increasing centrifugal force. The core of this device is to perform rectification in a high-speed rotating centrifuge, enabling the separation process of liquids and gases to occur under a higher gravitational acceleration, thereby significantly improving the mass transfer efficiency and processing capacity, and can be used in fields such as the production of electronic-grade polysilicon.

[0003] However, in current high-gravity rectification devices, the rotation of the moving disk generates centrifugal force, causing the liquid to converge towards the outside of the moving disk, and further resulting in uneven distribution of the liquid layer thickness on the moving disk, that is, the liquid layer near the center of the moving disk is thin, and the liquid layer far from the center of the moving disk is thick, affecting gas-liquid contact and thus reducing the gas-liquid mass transfer effect.

[0004] The information disclosed in this background art section is only intended to deepen the understanding of the overall background art of the present utility model, and should not be regarded as an admission or any form of implication that this information constitutes prior art known to those skilled in the art. Summary of the Utility Model

[0005] The present utility model provides a high-gravity rectification device, thereby effectively solving the problems in the background art.

[0006] To achieve the above object, the technical solution adopted by the present utility model is: a high-gravity rectification device, comprising: a housing, a moving disk, a static disk, a rotating shaft, and a driving member;

[0007] An accommodation space is provided inside the housing, and a plurality of the static disks are provided at intervals inside the accommodation space. The rotating shaft is provided at the center of the housing and vertically passes through the centers of the static disks;

[0008] A gas outlet and a reflux port are provided at the top of the housing, a liquid outlet is provided at the bottom, a gas inlet is provided on one side of the housing close to the liquid outlet, and a liquid inlet is provided on the housing;

[0009] The moving disk is arranged on the rotating shaft and is correspondingly arranged at the bottom of each static disk. The driving member drives the rotating shaft to rotate and drives the moving disk to rotate;

[0010] A plurality of concentric baffle rings are arranged at intervals perpendicular to the bottom of the moving disk, a filling area is formed between the baffle rings, and packing is arranged in the filling area.

[0011] The baffle ring is provided with a number of holes. The holes in the area close to the bottom of the moving disk and the area close to the static disk side are straight holes, and inclined holes are arranged in the middle area between the two straight hole areas, and the inclined holes are arranged obliquely upward from the inner side to the outer side of the baffle ring.

[0012] Further, a sealing plate is arranged at the top of the packing, and the sealing plate is a perforated plate structure.

[0013] Further, the included angle between the inclined hole and the bottom plate of the moving disk is 10° to 30°.

[0014] Further, the inclined hole area is larger than the straight hole area.

[0015] Further, the holes are evenly distributed on the baffle plate.

[0016] Further, the diameter of the holes is 2 mm to 5 mm.

[0017] Further, the packing is structured packing.

[0018] Further, the packing is at least one of mesh packing and corrugated packing.

[0019] Further, a condenser is further included. One end of the condenser is connected to the gas outlet, and the other end is connected to the reflux port.

[0020] Further, a diversion pipe is further included, and the diversion pipe is arranged between the static disk and the rotating shaft.

[0021] The beneficial effects of the present utility model are as follows: by arranging straight holes in the upper and lower regions of the baffle ring and inclined holes in the middle region, and the inclined holes are arranged obliquely upward from the inner side to the outer side of the baffle ring. When the liquid held at the bottom of the moving disk exceeds the straight holes in the lower region, the liquid will pass through the inclined holes in the middle, so that the moving disk will throw the liquid obliquely upward during rotation, forming a spiral liquid droplet thrown obliquely upward, making up for the potential difference loss caused by gravity, forming a certain thickness of liquid hold at the bottom of the moving disk, which helps to control the liquid layer thickness on the moving disk, making the liquid more uniform and improving the gas-liquid mass transfer effect. Description of the Drawings

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0023] Figure 1 It is a schematic structural diagram of a supergravity rectification device;

[0024] Figure 2 It is at Figure 1 The partial enlarged view at position A in;

[0025] Figure 3 It is a top view of the moving disk;

[0026] Figure 4 It is a sectional view of the baffle ring;

[0027] Figure 5 It is at Figure 4 The partial enlarged view at position B in.

[0028] Reference numerals: 1, housing; 11, gas inlet; 12, gas outlet; 13, reflux port; 14, liquid inlet; 15, liquid outlet; 2, moving disk; 21, baffle ring; 211, straight hole; 212, inclined hole; 22, filling area; 23, packing; 24, sealing plate; 3, static disk; 4, rotating shaft; 5, guide pipe; 6, condenser. Detailed implementation manners

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments.

[0030] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0031] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0032] As Figures 1 to 5 shown: A high gravity rectification device includes: a housing 1, a moving disk 2, a static disk 3, a rotating shaft 4, and a driving member;

[0033] The housing 1 is provided with an accommodation space inside, and a plurality of static disks 3 are arranged at intervals in the accommodation space, forming a plurality of independent separation zones. The presence of the static disks 3 helps to control the flow paths of gas and liquid, and improve the separation efficiency; the rotating shaft 4 is arranged at the center of the housing 1 and vertically passes through the center of the static disk 3;

[0034] The top of the housing 1 is provided with a gas outlet 12 and a reflux port 13, the bottom is provided with a liquid outlet 15, one side of the housing 1 near the liquid outlet 15 is provided with a gas inlet 11, and the housing 1 is provided with a liquid inlet 14;

[0035] The moving disk 2 is arranged on the rotating shaft 4 and is correspondingly arranged at the bottom of the static disk 3. The driving member drives the rotating shaft 4 to rotate, driving the moving disk 2 to rotate; the moving disk 2 rotates at a high speed to generate centrifugal force;

[0036] A plurality of groups of concentric baffle rings 21 are arranged at intervals at the bottom of the vertical moving disk 2. A filling area 22 is formed between the baffle rings 21, and a packing 23 is arranged in the filling area 22;

[0037] The baffle ring 21 is provided with a number of holes. The areas of the holes near the bottom of the moving disk 2 and the side near the static disk 3 are straight holes 211, and an inclined hole 212 is arranged in the middle area between the two straight hole areas 211, and the inclined hole 212 is inclined upward from the inner side to the outer side of the baffle ring 21.

[0038] By arranging the packing 23 between the baffle rings 21, the moving disk 2 rotates to generate centrifugal force, forming a high gravity field. The high gravity greatly reduces the effect of the liquid surface tension. The liquid moves from the center of the moving disk 2 to the baffle ring 21, passes through multiple baffle rings 21 and packing 23 areas. The liquid forms tiny droplets, liquid filaments, and liquid films under the action of high shear force, so as to increase the residence time of the liquid. The transfer and reaction processes between the two-phase substances will be strengthened, the gas-liquid mass transfer efficiency is improved, and the rectification process becomes more efficient.

[0039] Straight holes 211 are provided in the upper and lower regions of the baffle ring 21, and inclined holes 212 are provided in the middle. The inclined holes 212 are inclined upward from the inside to the outside of the baffle ring 21. The straight holes 211 in the lower part facilitate the flow of liquid at the bottom of each baffle ring 21, forming a liquid hold of a certain thickness at the bottom of the moving disk 2. The holes in the middle are inclined. When the liquid hold at the bottom of the moving disk 2 exceeds the straight holes 211 in the lower region, the liquid will pass through the inclined holes 212 in the middle, causing the moving disk 2 to throw the liquid obliquely upward during rotation, forming a spiral liquid droplet thrown obliquely upward, compensating for the potential difference loss caused by gravity, helping to control the liquid layer thickness on the moving disk 2, making the liquid more uniform, and enhancing the gas-liquid mass transfer effect.

[0040] The fluid of the inclined holes 212 forms a spiral upward path within the baffle ring 21, increasing the fluid retention and perturbation, improving the liquid distribution uniformity and the gas-liquid mixing effect, and enhancing the gas-liquid mass transfer efficiency.

[0041] In this embodiment, a sealing plate 24 is provided at the top of the packing 23. The sealing plate 24 is a perforated plate structure. Specifically, on the one hand, the perforated plate guides and restricts the fluid appropriately, preventing the liquid from accumulating at the top of the packing 23 layer, thus ensuring the smooth passage of gas and liquid; on the other hand, when the steam and liquid pass through the perforated plate, the fluid will generate perturbation and eddy currents on the surface of the perforated plate, enhancing the gas-liquid mixing effect.

[0042] As a preference of the above embodiment, the angle between the inclined holes 212 and the bottom plate of the moving disk 2 is 10° to 30°. Preferably, the angle between the inclined holes 212 and the bottom plate of the moving disk 2 is 20°. Through the flow path of the inclined holes 212 in the middle of the baffle ring 21, the residence time of the liquid on the moving disk 2 is extended, making the gas-liquid contact process more sufficient; the inclined holes 212 in the middle of the baffle ring 21 cause the liquid hold exceeding the straight holes 211 in the lower part to be thrown obliquely at an angle of 10° to 30°, forming a spiral liquid droplet thrown obliquely upward, which can effectively prevent the backflow and accumulation of liquid on the disk surface.

[0043] Among them, the area of the inclined holes 212 is larger than that of the straight holes 211. In this embodiment, there are only three layers of straight holes 211 in the upper and lower parts of the baffle ring 21, and the other intermediate regions are all inclined holes 212. The number of layers of the straight holes 211 can also be other quantities, which are specifically determined according to the size of the on-site device and the requirement of the liquid hold height. In the larger area of the inclined holes 212 region, the fluid can be better distributed, avoiding concentrated flow and reducing the risk of liquid accumulation and uneven distribution.

[0044] In this embodiment, the holes are evenly distributed on the baffle plate. On the one hand, through the uniform arrangement of the holes, the liquid can form a consistent flow channel on the baffle plate, reducing the problems of dead corners and poor flow; on the other hand, the uniform arrangement of the holes enables the gas to pass through the liquid layer evenly, thereby increasing the opportunity of gas-liquid contact.

[0045] As a preference of the above embodiments, the diameter of the holes is 2 mm to 5 mm. Specifically, the hole diameters of 2 mm to 5 mm can form a uniform liquid film on the moving disk 2, enhancing the gas-liquid mass transfer effect; the hole diameters within this range can effectively reduce the flow resistance while ensuring the uniform distribution of the liquid, ensuring good contact between the gas and liquid phases.

[0046] Among them, the packing 23 is structured packing. On the one hand, the structural design of the structured packing provides a large specific surface area, enabling the gas-liquid two phases to carry out mass transfer on a larger contact interface; on the other hand, the design of the structured packing can generate stronger turbulence between the gas-liquid two phases, enhancing the interphase mixing and further improving the mass transfer effect, which is particularly important for improving the separation efficiency and accuracy of the distillation column.

[0047] As a preference of the above embodiments, the packing 23 is mesh packing, corrugated packing, or at least one of them. Specifically, the mesh packing is a structure woven from materials such as metal or plastic, suitable for occasions with high gas-liquid mass transfer requirements and large changes in operating pressure. Due to the extremely high specific surface area of the mesh packing, the gas-liquid two phases can carry out mass transfer on a larger contact surface, significantly improving the separation efficiency; the corrugated packing increases the contact area and time between the gas and liquid through its regularly arranged corrugated structure, thereby improving the mass transfer efficiency. At the same time, the corrugated packing provides a low-resistance flow path, reducing the pressure loss when the gas and liquid pass through.

[0048] Among them, it further includes a condenser 6. One end of the condenser 6 is connected to the gas outlet 12, and the other end is connected to the reflux port 13. Specifically, the circuit design formed by the gas outlet 12, the condenser 6, and the reflux port 13 ensures that a part of the condensed gas can flow back into the device, further improving the efficiency of the separation tower.

[0049] As a preference of the above embodiments, it further includes a guide pipe 5. The guide pipe 5 is arranged between the static disk 3 and the rotating shaft 4. Specifically, the guide pipe 5 can guide the gas or liquid to flow along a specific path, making it evenly distributed inside the device, effectively reducing the flow short-circuit phenomenon of the fluid between the moving disk 2 and the static disk 3, ensuring that the mass transfer conditions of each part are the same, and improving the overall separation efficiency of the device.

[0050] Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. An ultra-gravity distillation device, characterized in that: include: Housing, moving plate, static plate, rotating shaft and driving parts; The housing is provided with a containing space, a plurality of the static disks are arranged at intervals in the containing space, and the rotating shaft is arranged at the center of the housing and vertically passes through the center of the static disk; The shell is provided with a gas outlet and a reflux port at the top, a liquid outlet at the bottom, a gas inlet at one side of the shell close to the liquid outlet, and a liquid inlet at the shell; The moving disk is arranged on the rotating shaft and is arranged one by one at the bottom of the static disk. The driving member drives the rotating shaft to rotate and drives the moving disk to rotate; A plurality of groups of concentric baffles are arranged at intervals vertically on the bottom of the moving plate, a filling area is formed between the baffles, and a filler is arranged in the filling area; The deflector ring is provided with a plurality of holes, wherein the holes near the bottom area of ​​the moving plate and the area near one side of the stationary plate are straight holes, and an inclined hole is provided in the middle area between the two straight holes, and the inclined hole is arranged upwardly and inclinedly from the inside to the outside of the deflector ring.

2. The ultra-gravity distillation device according to claim 1, characterized in that: A sealing plate is provided on the top of the packing, and the sealing plate is a perforated plate structure.

3. The ultra-gravity distillation device according to claim 1, characterized in that: The angle between the inclined hole and the bottom plate of the movable plate is 10° to 30°.

4. The ultra-gravity distillation device according to claim 1, characterized in that: The inclined hole area is larger than the straight hole area.

5. The ultra-gravity distillation device according to claim 1, characterized in that: The holes are evenly distributed on the baffle ring.

6. The ultra-gravity distillation device according to claim 1, characterized in that: The diameter of the hole is 2 mm to 5 mm.

7. The ultra-gravity distillation device according to claim 1, characterized in that: The packing is a structured packing.

8. The ultra-gravity distillation device according to claim 7, characterized in that: The filler is at least one of a mesh filler and a corrugated filler.

9. The ultra-gravity distillation device according to claim 1, characterized in that: It also includes a condenser, one end of which is connected to the gas outlet, and the other end of which is connected to the reflux port.

10. An ultra-gravity distillation device according to any one of claims 1 to 9, characterized in that: It also includes a flow guide pipe, which is arranged between the stator and the rotating shaft.

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