Gas-liquid separation device of single-tower double-circulation absorption tower

Abstract

The utility model discloses a gas -liquid separation device of single tower double -cycle absorption tower, specifically relates to gas -liquid separation device technical field, including the partition platform, and the lower end part of partition platform is equipped with the gas guide groove for the gas that is used for the concentration of gas convenient acceleration, and the upper end part of gas guide groove is equipped with the first exhaust hole, and the upper end of partition platform is provided with the shunt frame for the uniform direction airflow, and the upper end part of shunt frame is equipped with the gas guide hole, and the outside of shunt frame is installed with the support platform, and the upper end part of support platform is equipped with the second exhaust hole for discharging gas, and the inside of support platform is provided with the liquid receiving tray for receiving liquid. The utility model through gas guide groove and first exhaust hole concentratedly guide lower reaction area gas, and through shunt frame and gas guide hole to scatter and flow gas, and utilize support platform second exhaust hole to multiple orientation even distribution, make the upper reaction area liquid spray can fully contact gas and enter the liquid receiving tray, and through the guide block shunt lower reaction area gas and upper reaction area liquid.

Description

Technical Field

[0001] This utility model relates to the technical field of gas-liquid separation devices, and more specifically, to a gas-liquid separation device with a single-tower dual-circulation absorption tower. Background Technology

[0002] Single-tower dual-circulation absorption towers are generally used for waste gas treatment. Single-tower dual-circulation technology is one of the mainstream high-efficiency technologies in modern coal-fired power plant flue gas desulfurization (WFGD) systems. Its core is that within an absorption tower, a liquid collection tray physically divides the tower into upper and lower circulation loops, thereby achieving operating environments with different pH values, balancing high desulfurization efficiency and gypsum quality. The functions and roles of the gas-liquid separation device in a single-tower dual-circulation absorption tower include: physically separating the tower (dividing the absorption tower into upper and lower reaction zones); collecting and diverting slurry (collecting the slurry falling from the top and guiding it to the corresponding circulation pump and spray layer. The upper slurry enters the upper circulation pump, and the lower slurry enters the lower circulation pump); uniformly distributing airflow (the tray has dedicated gas phase channels to allow flue gas to pass through evenly while minimizing slurry leakage); and preliminary gas-liquid separation (when flue gas carrying droplets passes through the liquid collection tray, some droplets collide with the tray, condense, and are trapped, achieving preliminary separation).

[0003] Most existing single-tower dual-circulation absorption towers have independent support structures for gas-liquid separation, with gas flow structures on these structures. However, the gas flow requires a certain amount of time to fully disperse, and the liquid in the upper reaction zone is sprayed and dispersed. During gas flow, the contact effect between the sprayed liquid and the gas in the upper reaction zone at the support structure is weak, which reduces the reaction effect at the reaction zone separation point and affects the overall performance of the absorption tower.

[0004] In summary, in order to address the issue of weak gas-liquid contact at the separation device location during gas treatment in a single-tower dual-circulation absorption tower, it is necessary to ensure that the gas is fully dispersed and contacts the slurry as it enters the upper reaction zone from the lower reaction zone. Utility Model Content

[0005] The gas-liquid separation device for a single-tower dual-circulation absorption tower provided by this utility model aims to solve the following problem: In the existing gas-liquid separation device for a single-tower dual-circulation absorption tower, the contact effect between the sprayed liquid and the gas in the upper reaction zone at the supporting structure is weak during gas flow, which reduces the reaction effect at the reaction zone separation point and affects the overall performance of the absorption tower.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a gas-liquid separation device for a single-tower double-circulation absorption tower, comprising a partition platform, a gas guide channel for concentrating gas and facilitating acceleration at the lower end of the partition platform, a first exhaust port at the upper end of the gas guide channel, a flow divider for uniformly guiding the airflow at the upper end of the partition platform, a gas guide hole at the upper end of the flow divider, a support platform installed on the outer side of the flow divider, a second exhaust port for discharging gas at the upper end of the support platform, and a liquid receiving tray for receiving liquid on the inner side of the support platform.

[0007] In a preferred embodiment, a plurality of liquid receiving pipes are evenly arranged on the outer side of the first vent hole, a collection pipe is installed at the lower end of the liquid receiving pipe, and a drain pipe is installed on the outer side of the collection pipe.

[0008] In a preferred embodiment, a guide block is fixed to the inner side of the liquid receiving tray, and a connection hole is provided on the outer side of the guide block.

[0009] In a preferred embodiment, a liquid guide plate is provided at the upper end of the support platform, and an airflow guide plate is fixedly connected to the lower end of the liquid guide plate.

[0010] In a preferred embodiment, a first external pipe is fixedly connected to the outer side of the liquid guide plate and the airflow guide plate, a first temperature regulating pipe is provided on the inner side of the first external pipe, and a first annular temperature regulating pipe is provided on the outer side of the first temperature regulating pipe.

[0011] In a preferred embodiment, a mounting bracket is provided at the upper end of the liquid guide plate, a liquid guide frame is installed on the inner side of the mounting bracket, an airflow guide frame is fixedly connected to the lower end of the liquid guide frame, and a second outer pipe is provided at the upper end of the liquid guide frame.

[0012] In a preferred embodiment, a second temperature regulating tube is provided on the inner side of the second outer tube, and a second annular temperature regulating tube is provided at the lower end of the second temperature regulating tube.

[0013] The beneficial effects of this utility model are as follows:

[0014] This invention uses a gas guide channel and a first exhaust port to centrally guide the gas in the lower reaction zone, and uses a diverter and gas guide holes to disperse the guided gas. The second exhaust port of the support platform is used to distribute the gas evenly in multiple directions, so that the sprayed liquid in the upper reaction zone can fully contact the gas and enter the liquid receiving tray. The gas in the lower reaction zone and the liquid in the upper reaction zone are diverted by the guide block, which facilitates subsequent collection and circulation.

[0015] This invention guides the sprayed liquid using a liquid guide plate and a liquid guide frame, and guides the reaction gas using an airflow guide plate and an airflow guide frame. Simultaneously, the liquid guide plate and the airflow guide plate are contacted by a first temperature regulating pipe and a first annular temperature regulating pipe, and the temperature during contact is adjusted by a second temperature regulating pipe and a second annular temperature regulating pipe, thereby improving the contact reaction effect. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the partition structure of this utility model.

[0018] Figure 3 This is a schematic diagram of the liquid receiving tray structure of this utility model.

[0019] Figure 4 This is a schematic diagram of the liquid guide plate structure of this utility model.

[0020] Figure 5 This is a schematic diagram of the mounting bracket structure of this utility model.

[0021] The attached figures are labeled as follows: 1. Separator; 2. Gas guide channel; 3. First vent; 4. Liquid receiving pipe; 5. Collection pipe; 6. Drain pipe; 7. Diverter; 8. Gas guide hole; 9. Support platform; 10. Second vent; 11. Liquid receiving tray; 12. Guide block; 13. Connection hole; 14. Liquid guide plate; 15. Airflow guide plate; 16. First external pipe; 17. First temperature regulating pipe; 18. First annular temperature regulating pipe; 19. Mounting frame; 20. Liquid guide frame; 21. Airflow guide frame; 22. Second external pipe; 23. Second temperature regulating pipe; 24. Second annular temperature regulating pipe. Detailed Implementation

[0022] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0023] Refer to the instruction manual appendix Figures 1 to 5The gas-liquid separation device of the single-tower double-circulation absorption tower includes a partition platform 1. The lower end of the partition platform 1 is provided with a gas guide channel 2 for concentrating gas and facilitating acceleration. The upper end of the gas guide channel 2 is provided with a first exhaust port 3. The upper end of the partition platform 1 is provided with a flow divider 7 for uniformly guiding the airflow. The upper end of the flow divider 7 is provided with a gas guide hole 8. The outer side of the flow divider 7 is provided with a support platform 9. The upper end of the support platform 9 is provided with a second exhaust port 10 for discharging gas. The inner side of the support platform 9 is provided with a liquid receiving tray 11 for receiving liquid.

[0024] It should be noted that the gas in the lower reaction zone is guided by the gas guide groove 2 and the first exhaust hole 3, which facilitates the subsequent dispersion of the guided gas by the diverter 7 and the gas guide hole 8, and the gas is evenly distributed in multiple directions through the second exhaust hole 10 of the support platform 9, so that the sprayed liquid in the upper reaction zone can fully contact the gas and enter the liquid receiving plate 11.

[0025] It is worth noting that after passing through the first exhaust port 3, the lower reaction zone gradually disperses in the gap between the flow divider 7 and the partition platform 1, which facilitates the subsequent dispersion of the guided gas through the flow divider 7 and the gas guide port 8 and improves the overall homogeneity of the gas. At the same time, the second exhaust port 10 is provided with exhaust ports in two directions, which can fully disperse the gas.

[0026] Refer to the instruction manual appendix Figure 1 Multiple liquid receiving pipes 4 are evenly arranged on the outer side of the first vent hole 3. A collection pipe 5 is installed at the lower end of the liquid receiving pipe 4, and a drain pipe 6 is installed on the outer side of the collection pipe 5.

[0027] It should be noted that the liquid falling from the upper reaction zone is collected by the liquid receiving pipe 4 and the collecting pipe 5, and discharged through the liquid draining pipe 6.

[0028] Refer to the instruction manual appendix Figure 3 A guide block 12 is fixed to the inner side of the liquid receiving plate 11, and a connecting hole 13 is provided on the outer side of the guide block 12.

[0029] It should be noted that the gas in the lower reaction zone and the liquid in the upper reaction zone are diverted by the guide block 12 to facilitate subsequent collection and circulation.

[0030] Refer to the instruction manual appendix Figure 4 A liquid guide plate 14 is provided at the upper end of the support platform 9, and an airflow guide plate 15 is fixedly connected to the lower end of the liquid guide plate 14.

[0031] It should be noted that the liquid guide plate 14 concentrates the sprayed liquid from the outer periphery to form a water curtain, and the gas in the lower reaction zone is concentrated by the airflow guide plate 15, so that the gas and liquid can fully contact at the contact position of the liquid guide plate 14 and the airflow guide plate 15, thereby improving the contact effect.

[0032] Refer to the instruction manual appendix Figure 4 A first external pipe 16 is fixedly connected to the outer side of the liquid guide plate 14 and the airflow guide plate 15. A first temperature regulating pipe 17 is provided on the inner side of the first external pipe 16, and a first annular temperature regulating pipe 18 is provided on the outer side of the first temperature regulating pipe 17.

[0033] It should be noted that the first temperature regulating tube 17 and the first annular temperature regulating tube 18 contact the liquid guide plate 14 and the airflow guide plate 15, thereby adjusting the temperature during contact and improving the contact reaction effect.

[0034] Refer to the instruction manual appendix Figure 5 The upper end of the liquid guide plate 14 is provided with a mounting bracket 19, the inner side of the mounting bracket 19 is provided with a liquid guide frame 20, the lower end of the liquid guide frame 20 is fixed with an airflow guide frame 21, and the upper end of the liquid guide frame 20 is provided with a second outer pipe 22.

[0035] It should be noted that the sprayed liquid at the center of the absorption tower is diverted by the liquid guide frame 20, and the gas at the center of the absorption tower is separated by the airflow guide frame 21, thereby improving the gas-liquid contact effect.

[0036] Refer to the instruction manual appendix Figure 5 A second temperature regulating pipe 23 is provided on the inner side of the second outer pipe 22, and a second annular temperature regulating pipe 24 is provided at the lower end of the second temperature regulating pipe 23.

[0037] It should be noted that the contact temperature is adjusted by the second temperature control tube 23 and the second annular temperature control tube 24 to improve the contact reaction effect.

[0038] It is worth noting that the first temperature regulating pipe 17 and the second temperature regulating pipe 23 are connected to the outside of the absorption tower, so as to install a circulating pump or temperature control system. At the same time, the drain pipe 6 is connected to the circulation system outside the absorption tower, so as to facilitate the normal operation of the first annular temperature regulating pipe 18, the second annular temperature regulating pipe 24 and the drain pipe 6 to regulate the temperature or to circulate the liquid.

[0039] Working principle: First, the gas in the lower reaction zone is concentrated and guided by the gas guide channel 2 and the first exhaust port 3, and the guided gas is dispersed by the diverter 7 and the gas guide port 8. Then, the gas is evenly distributed in multiple directions by the second exhaust port 10 of the support platform 9. At the same time, the sprayed liquid in the upper reaction zone can fully contact the gas and enter the liquid receiving plate 11. Then, the gas in the lower reaction zone and the liquid in the upper reaction zone are diverted by the guide block 12 to facilitate subsequent collection and circulation. Finally, the gas in the lower reaction zone is concentrated by the airflow guide plate 15, and the gas in the center of the absorption tower is separated by the airflow guide frame 21, so that the gas enters the upper reaction zone.

[0040] In operation, firstly, the liquid spraying liquid on the outer periphery is concentrated by the liquid guide plate 14 to form a water curtain, and the liquid spraying liquid at the center of the absorption tower is diverted by the liquid guide frame 20 to improve the contact effect in the gas-liquid separation process. Next, the liquid guide plate 14 and the airflow guide plate 15 are contacted by the first temperature regulating pipe 17 and the first annular temperature regulating pipe 18 to adjust the temperature during contact and improve the contact reaction effect. At the same time, the temperature during contact is adjusted by the second temperature regulating pipe 23 and the second annular temperature regulating pipe 24 to improve the contact reaction effect. Finally, the liquid falling from the upper reaction zone is collected by the liquid receiving pipe 4 and the collecting pipe 5 and discharged through the liquid drain pipe 6.

[0041] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A gas-liquid separation device for a single-tower double-circulation absorption tower, characterized in that: The system includes a partition platform (1), a gas guide groove (2) for concentrating gas and facilitating acceleration at the lower end of the partition platform (1), a first exhaust hole (3) at the upper end of the gas guide groove (2), a flow divider (7) for uniformly guiding airflow at the upper end of the partition platform (1), a gas guide hole (8) at the upper end of the flow divider (7), a support platform (9) installed on the outside of the flow divider (7), a second exhaust hole (10) for discharging gas at the upper end of the support platform (9), and a liquid receiving tray (11) for receiving liquid on the inner side of the support platform (9).

2. The gas-liquid separation device of the single-tower dual-circulation absorption tower according to claim 1, characterized in that: Multiple liquid receiving pipes (4) are evenly arranged on the outside of the first vent hole (3). A collection pipe (5) is installed at the lower end of the liquid receiving pipe (4), and a drain pipe (6) is installed on the outside of the collection pipe (5).

3. The gas-liquid separation device of the single-tower dual-circulation absorption tower according to claim 2, characterized in that: A guide block (12) is fixed to the inner side of the liquid receiving plate (11), and a connecting hole (13) is provided on the outer side of the guide block (12).

4. The gas-liquid separation device of the single-tower dual-circulation absorption tower according to claim 3, characterized in that: A liquid guide plate (14) is provided at the upper end of the support platform (9), and an airflow guide plate (15) is fixedly connected to the lower end of the liquid guide plate (14).

5. The gas-liquid separation device of the single-tower dual-circulation absorption tower according to claim 4, characterized in that: A first external pipe (16) is fixedly connected to the outside of the liquid guide plate (14) and the airflow guide plate (15). A first temperature regulating pipe (17) is provided on the inside of the first external pipe (16), and a first annular temperature regulating pipe (18) is provided on the outside of the first temperature regulating pipe (17).

6. The gas-liquid separation device of the single-tower dual-circulation absorption tower according to claim 5, characterized in that: A mounting bracket (19) is provided at the upper end of the liquid guide plate (14), a liquid guide frame (20) is installed on the inner side of the mounting bracket (19), an airflow guide frame (21) is fixedly connected to the lower end of the liquid guide frame (20), and a second external pipe (22) is provided at the upper end of the liquid guide frame (20).

7. The gas-liquid separation device of the single-tower dual-circulation absorption tower according to claim 6, characterized in that: The inner side of the second external pipe (22) is provided with a second temperature regulating pipe (23), and the lower end of the second temperature regulating pipe (23) is provided with a second annular temperature regulating pipe (24).

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