A two-stage concentration tower

Abstract

This invention provides a two-stage concentration tower that reliably separates the gas phase, heavy liquid, and clear liquid of a mixture, achieving high concentration efficiency and completing the process with a single tower body. It includes: a cylindrical body comprising an elliptical upper head, a cylindrical body, and a lower head; a reflux distributor; a feed distributor; a liquid distributor; a first oil collection tank; a second oil collection tank; a first packing layer; and a second packing layer. The top of the elliptical upper head has a gas phase outlet. A reflux outlet is located on the upper part of the cylindrical body, connected to the reflux distributor. Liquid outlets are arranged on the lower part of the reflux distributor. The first packing layer is located below the reflux distributor, and excess material flows into the reflux outlet.

Description

Technical Field

[0001] This utility model relates to the technical field of concentration tower structure, specifically a two-stage concentration tower. Background Technology

[0002] Concentration towers, as gas-liquid separation equipment, are mainly used for the gas-liquid separation of mixed liquids containing gaseous impurities. In existing single-stage concentration towers, after the liquid is heated by heat exchange during gas-liquid separation, a mixture of liquid and gas is produced. In actual operation, there are light and heavy liquids inside the liquid. In the current technology, even with secondary concentration, it is still impossible to separate the heavy and light liquids. Therefore, there is an urgent need to develop a two-stage concentration tower that can reliably separate the gas phase, heavy liquid, and light liquid of the mixed substance. Utility Model Content

[0003] To address the aforementioned problems, this invention provides a two-stage concentration tower that reliably separates the gas phase, heavy liquid, and clear liquid of a mixture, with high concentration efficiency, and can be completed using only a single tower body.

[0004] A two-stage concentration tower, characterized in that it comprises:

[0005] The cylindrical body includes an elliptical upper end cap, a cylindrical body, and a lower end cap;

[0006] Backflow distributor;

[0007] Feed distributor;

[0008] Liquid distributor;

[0009] Episode 1: Fuel Tank;

[0010] Episode 2: Fuel Tank;

[0011] First packing layer;

[0012] and the second packing layer;

[0013] The top of the elliptical upper head is provided with a gas phase outlet, the upper part of the cylinder body is provided with a reflux port, the reflux port is connected to a reflux port distributor, the lower part of the reflux port distributor is provided with liquid outlets, and a first packing layer is provided below the reflux port distributor. The reflux port allows excess flow of material to flow in.

[0014] A feed distributor is provided below the first packing layer. A feed inlet is provided in the middle of the height direction of the cylinder body. The feed inlet is connected to the feed distributor. The feed inlet passes through a gas-liquid mixture. A first oil collection tank is provided below the feed distributor. The first oil collection tank separates the gas phase in the liquid and only allows the liquid to flow to the lower area.

[0015] A liquid distributor is installed directly below the first oil tank, through which the liquid falls evenly.

[0016] A second packing layer is provided below the liquid distributor, which is used to discharge the residual gas in the liquid.

[0017] A second oil collection tank is provided below the second packing layer. The second oil collection tank is used to further separate the gas phase in the liquid. An annular baffle is provided in the center of the lower area of ​​the second oil collection tank. Several reboiler return ports are arranged on the outer wall of the cylinder body corresponding to the annular baffle. The high-temperature liquid obtained from the reboiler return ports is mixed with the liquid obtained from the layer separation. An annular overflow weir is provided in the central area of ​​the lower head. Several heavy liquid outflow pipes are arranged around the outer periphery of the lower head corresponding to the annular overflow weir. A light liquid outflow outlet is provided in the central area of ​​the annular overflow weir.

[0018] Its further features are:

[0019] The light liquid outlet is a large-diameter outlet, and a downwardly protruding liquid bag is provided below the light liquid outlet. A second medium pipe is introduced into the side of the liquid bag. The second medium introduced into the second medium pipe mixes with the light liquid. An outflow pipe is provided at the bottom of the liquid bag.

[0020] The gas phase outlet of the elliptical upper head includes two sets of large-diameter gas phase outlets, which allow the gas phase to be discharged slowly without causing vibration of the entire equipment.

[0021] The cylinder body has several manholes arranged from top to bottom to ensure timely observation and maintenance of each equipment module;

[0022] The feed distributor connected to the feed inlet is a plate-type liquid distributor, which significantly reduces the flow rate of material entering the distribution pipe. The upper part of the liquid distributor is integrated with a liquid dispersing module, and the upper liquid is evenly dispersed downward through the liquid dispersing module to discharge the gas phase.

[0023] It also includes a skirt base cylinder, which is placed on the skirt base cylinder.

[0024] After adopting the above technical solution, the liquid discharged from the reflux port is absorbed by the first packing layer to obtain purified liquid. The gas-liquid mixture enters the feed distributor, which distributes the material evenly. Then, the purified liquid and the gas-liquid mixture are discharged as gas phase through the first oil collector, and then evenly distributed by the liquid distributor before being discharged as gas phase through the second oil collector. The material returns through several reboiler return ports at the bottom of the second oil collector, and enters the bottom of the cylinder body through the annular baffle. The two components (light liquid and heavy liquid) react in the lower part of the tower body. Since the annular overflow weir is located below the annular baffle, the heavy liquid of the heavy component is discharged through the heavy liquid outflow pipe arranged around the lower head, and the clear liquid of the light component flows out through the annular overflow weir. This reliably separates the gas phase, heavy liquid, and clear liquid of the mixture, and has a high concentration efficiency, which can be completed by a single tower body. Attached Figure Description

[0025] Figure 1 This is a front view and sectional view of the present invention;

[0026] The names corresponding to the serial numbers in the diagram are as follows:

[0027] 10. Cylinder body, 11. Elliptical upper head, 12. Cylinder body, 13. Lower head, 14. Gas phase outlet, 15. Return port, 16. Feed inlet, 17. Reboiler return port, 18. Heavy liquid outflow pipeline, 19. Second medium pipeline, 20. Return port distributor, 30. Feed distributor, 31. Liquid distribution module, 40. First oil collection tank, 50. Second oil collection tank, 60. First packing layer, 70. Second packing layer, 80. Annular baffle, 90. Annular overflow weir, 100. Liquid tank, 110. Outflow pipeline, 120. Skirted cylinder body, 130. Detailed Implementation

[0028] A two-stage concentration tower, see Figure 1 It includes a cylinder 10, a return port distributor 20, a feed distributor 30, a liquid distributor 40, a first oil collection tank 50, a second oil collection tank 60, a first packing layer 70, and a second packing layer 80.

[0029] The cylinder 10 includes an elliptical upper end cap 11, a cylinder body 12, and a lower end cap 13;

[0030] The top of the elliptical upper head 11 is provided with a gas phase outlet 14, and the upper part of the cylinder body 12 is provided with a return port 15. The return port 15 is connected to a return port distributor 20. The lower part of the return port distributor 20 is provided with liquid outlets. The first packing layer 70 is provided below the return port distributor 20. The return port 15 allows excess material to flow in.

[0031] A feed distributor 30 is provided below the first packing layer 70. A feed inlet 16 is provided in the middle of the height direction of the cylinder body 12. The feed inlet 16 is connected to the feed distributor 30. The feed inlet 16 passes through the gas-liquid mixture. A first oil collection tank 50 is provided below the feed distributor 30. The first oil collection tank 50 separates the gas phase in the liquid and only allows the liquid to flow to the lower area.

[0032] The first episode has a liquid distributor 40 located directly below the oil tank 50, through which the liquid falls evenly.

[0033] A second packing layer 80 is provided below the liquid distributor 40, and the second packing layer 80 is used to discharge the residual gas in the liquid.

[0034] Below the second packing layer 80, a second oil collection tank 60 is provided. The second oil collection tank 60 is used to further separate the gas phase in the liquid. An annular baffle 90 is provided in the center of the area below the second oil collection tank 60. A number of reboiler return ports 17 are arranged on the outer wall of the cylinder body 12 corresponding to the annular baffle 90. The high-temperature liquid obtained from the reboiler return ports 17 is mixed with the liquid obtained from the layer separation. An annular overflow weir 100 is provided in the central area of ​​the lower end cap 13. A number of heavy liquid outflow pipes 18 are arranged around the outer periphery of the lower end cap 13 corresponding to the annular overflow weir 100. A light liquid outflow outlet is provided in the central area of ​​the annular overflow weir 100.

[0035] In specific implementation, the light liquid outlet is a large-diameter outlet, and a downwardly protruding liquid package 110 is provided below the light liquid outlet. A second medium pipe 19 is introduced into the side of the liquid package 110. The second medium introduced into the second medium pipe 19 mixes with the light liquid. An outflow pipe 120 is provided at the bottom of the liquid package 110, which allows the light liquid obtained through secondary concentration to be directly mixed with the second medium to form the required mixture for subsequent operations.

[0036] The gas phase outlet of the elliptical upper head 11 includes two sets of large-diameter gas phase outlets 14, which allow the gas phase to be discharged slowly without causing vibration of the entire equipment.

[0037] The cylinder body 12 has several manholes arranged from top to bottom to ensure timely observation and maintenance of each equipment module;

[0038] The feed distributor 30 connected to the feed inlet 16 is a plate-type liquid distributor, which fully reduces the flow rate of material entering the distribution pipe. The upper part of the liquid distributor 30 is integrated with a liquid dispersing module 31. The liquid in the upper part is evenly dispersed downward through the liquid dispersing module 31 and the gas phase is discharged.

[0039] It also includes a skirt base cylinder 130, with the cylinder 10 placed on the skirt base cylinder 130.

[0040] The principle is as follows: the liquid discharged from the reflux port is absorbed by the first packing layer to obtain purified liquid. The gas-liquid mixture enters the feed distributor, which distributes the material evenly. Then, the purified liquid and the gas-liquid mixture are discharged as gas phase through the first oil collector, and then evenly distributed by the liquid distributor before being discharged as gas phase through the second oil collector. Several reboiler return ports at the bottom of the second oil collector allow the material to enter the bottom of the cylinder body through the annular baffle. The two components (light liquid and heavy liquid) react in the lower part of the tower body. Since the annular overflow weir is located below the annular baffle, the heavy liquid of the heavy component is discharged through the heavy liquid outflow pipe arranged around the lower head, and the clear liquid of the light component flows out through the annular overflow weir. This reliably separates the gas phase, heavy liquid, and clear liquid of the mixture, and has a high concentration efficiency, which can be completed by a single tower body.

[0041] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0042] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A two-stage concentration tower, characterized in that, It includes: The cylindrical body includes an elliptical upper end cap, a cylindrical body, and a lower end cap; Backflow distributor; Feed distributor; Liquid distributor; Episode 1: Fuel Tank; Episode 2: Fuel Tank; First packing layer; and the second packing layer; The top of the elliptical upper head is provided with a gas phase outlet, the upper part of the cylinder body is provided with a reflux port, the reflux port is connected to a reflux port distributor, the lower part of the reflux port distributor is provided with liquid outlets, and a first packing layer is provided below the reflux port distributor. The reflux port allows excess flow of material to flow in. A feed distributor is provided below the first packing layer. A feed inlet is provided in the middle of the height direction of the cylinder body. The feed inlet is connected to the feed distributor. The feed inlet passes through a gas-liquid mixture. A first oil collection tank is provided below the feed distributor. The first oil collection tank separates the gas phase in the liquid and only allows the liquid to flow to the lower area. A liquid distributor is installed directly below the first oil tank, through which the liquid falls evenly. A second packing layer is provided below the liquid distributor, which is used to discharge the residual gas in the liquid. A second oil collection tank is provided below the second packing layer. The second oil collection tank is used to further separate the gas phase in the liquid. An annular baffle is provided in the center of the lower area of ​​the second oil collection tank. Several reboiler return ports are arranged on the outer wall of the cylinder body corresponding to the annular baffle. The high-temperature liquid obtained from the reboiler return ports is mixed with the liquid obtained from the layer separation. An annular overflow weir is provided in the central area of ​​the lower head. Several heavy liquid outflow pipes are arranged around the outer periphery of the lower head corresponding to the annular overflow weir. A light liquid outflow outlet is provided in the central area of ​​the annular overflow weir.

2. A two-stage concentration tower according to claim 1, characterized in that: The light liquid outlet is a large-diameter outlet, and a downwardly protruding liquid bag is provided below the light liquid outlet. A second medium pipe is introduced into the side of the liquid bag. The second medium introduced into the second medium pipe mixes with the light liquid. An outflow pipe is provided at the bottom of the liquid bag.

3. A two-stage concentration tower according to claim 1, characterized in that: The gas phase outlet of the elliptical upper head includes two sets of large-diameter gas phase outlets.

4. A two-stage concentration tower according to claim 1, characterized in that: The cylindrical body has several manholes arranged from top to bottom.

5. A two-stage concentration tower according to claim 1, characterized in that: The feed distributor connected to the feed inlet is a plate-type liquid distributor. The upper part of the feed distributor is integrated with a liquid distribution module, and the liquid in the upper part is evenly distributed downward through the liquid distribution module.

6. A two-stage concentration tower according to claim 1, characterized in that: It also includes a skirt base cylinder, which is placed on the skirt base cylinder.

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