Gas-liquid separation tower breaking tray

Abstract

The utility model discloses a gas-liquid separation tower breaking tray which comprises a tower body, supports are fixedly connected to the four sides of the middle of the inner wall of the tower body, a tower breaking tray is fixedly connected to the top ends of the four supports, four coal gas caps are evenly arranged at the top end of the tower breaking tray, and an annular gas channel is arranged between the side wall of the tower breaking tray and the tower body. An annular gas cap is welded on the inner wall of the tower body above the annular gas channel, an ammonia water inlet pipe is fixedly connected to the top of one side of the inner wall of the broken tower tray, a remote transmission self-control liquid level meter is mounted on the inner wall of the tower body above the broken tower tray, a liquid level self-control downcomer is mounted in the middle of the inner wall of the tower body, and a self-control regulating valve is mounted on the surface of the liquid level self-control downcomer; according to the gas-liquid separation tower breaking tray disclosed by the utility model, coal gas enters the upper section through the tower breaking tray, and coal gas condensate overflows into the lower section through the tower breaking tray, so that not only can the trafficability of the coal gas be increased, but also the liquid height of the upper section can be increased, and coal gas leakage in a coal gas cooling process can be prevented.

Description

Technical Field

[0001] This utility model relates to the field of gas scrubbing technology, specifically a gas-liquid separation tower tray. Background Technology

[0002] In the process of benzene removal from coke oven gas, the cooling and cleaning of coke oven gas has a significant impact on benzene removal.

[0003] Currently, the direct cooling of this process uses a final cooling tower, employing a spiral plate heat exchanger to cool the sprayed liquid, and heat exchange occurs through direct contact between the sprayed liquid and the coke oven gas. However, the existing coke oven gas cooling method has the following drawbacks:

[0004] (1) During the use of the final cooling tower, the gas resistance is very likely to be large, resulting in a large pressure drop of gas before and after the tower. The blockage of the final cooling tower requires a large amount of steam to purge, which in turn leads to a waste of resources.

[0005] (2) The final cooling tower generally adopts a two-stage cooling process, with the upper and lower sections circulating independently. The upper and lower sections are equipped with a broken tower plate for gas-liquid separation. However, due to the setting of the broken tower plate, the flow of spray liquid is hindered and flooding is likely to occur, resulting in continuous accumulation of liquid in the upper section, which increases the operating burden of the equipment and has a significant impact on the environmental safety of the entire production.

[0006] Considering the above, a gas-liquid separation tray is proposed to solve the problems mentioned above. Utility Model Content

[0007] The purpose of this invention is to provide a gas-liquid separation tower tray to solve the existing problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a gas-liquid separation tower plate, comprising a tower body, with supports fixedly connected to the four sides of the middle of the inner wall of the tower body, and a tower plate fixedly connected to the top of the four supports. Four gas caps are evenly arranged at the top of the tower plate. An annular gas channel is provided between the side wall of the tower plate and the tower body. An annular gas cap is welded to the inner wall of the tower body above the annular gas channel. An ammonia inlet pipe is fixedly connected to the top of one side of the inner wall of the tower plate. A remote-controlled automatic level gauge is installed on the inner wall of the tower body above the tower plate. A level-controlled downcomer is installed in the middle of the inner wall of the tower body. A self-controlled regulating valve is installed on the surface of the level-controlled downcomer. A circular gas channel is provided inside the gas cap, and a pre-filtration mechanism is installed at the bottom of the inner wall of the circular gas channel.

[0009] When using a gas-liquid separation tray of this technical solution, the gas enters the upper section through the tray, and the gas condensate overflows into the lower section through the tray. This not only increases the gas flow rate but also raises the liquid level in the upper section, preventing gas leakage during the gas cooling process.

[0010] In a preferred embodiment of this invention, a gas inlet is provided at the bottom of the inner wall of the tower body, and a condensate inlet is provided at the top of the inner wall of the tower body. Gas is introduced from below the tower break tray, and condensate is sprayed from above the tower break tray.

[0011] In a preferred embodiment of this invention, the bottom end of the ammonia inlet pipe is positioned above the broken tower tray, and an ammonia inlet is provided on the side wall of the tower body corresponding to the ammonia inlet pipe. Ammonia is then fed into the broken tower tray through the ammonia inlet.

[0012] In a preferred embodiment of this invention, the inlet of the self-regulating downcomer is positioned above the tray, and the outlet is positioned below the tray. Liquid is discharged through the self-regulating downcomer to prevent overflow.

[0013] In a preferred embodiment of this invention, the self-regulating valve is electrically connected to an external power supply via a remote self-regulating level gauge. The opening degree of the self-regulating valve is controlled by the remote self-regulating level gauge.

[0014] In a preferred embodiment of this invention, the pre-filtration mechanism includes an annular seat, a mesh frame, a coarse filter screen, and a fine filter screen. The annular seat is fixedly connected to the inner wall of a circular gas channel. The mesh frame is installed on the inner wall of the annular seat. A coarse filter screen is fixedly installed at the bottom of the inner wall of the mesh frame, and a fine filter screen is fixedly installed at the top of the inner wall of the mesh frame. The filter screens on the pre-filtration mechanism are used to pre-filter particulate impurities in the coke oven gas.

[0015] In a preferred embodiment of this invention, a vibration motor is fixedly installed on both sides of the top of the mesh frame, and a slip ring is fixedly connected to the side wall of the mesh frame, with the slip ring slidably connected to the inner wall of the annular seat. The vibration motor drives the mesh frame to vibrate, shaking off particulate impurities adhering to the filter screen.

[0016] In a preferred embodiment of this invention, a plurality of springs are fixedly connected to the top and bottom ends of the slip ring, and each of the springs is respectively fixedly connected to the top and bottom ends of the inner wall of the annular seat. The cooperation between the springs and the slip ring enables the mesh frame to vibrate after vibration is initiated.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. By optimizing the tower plate structure and introducing an annular gas cap design, this device significantly improves the flow between coal gas and spray liquid, thereby reducing the resistance inside the tower. At the same time, the precise control of the automatic liquid level adjustment system ensures the stability of the internal environment of the tower, further improving the purification quality. Due to the improved gas-liquid separation efficiency and optimized liquid level control, this device performs excellently in reducing the amount of spray liquid used and reducing energy consumption. In addition, the high efficiency of purification also means less pollutant emissions, which is of great significance to environmental protection.

[0019] 2. This tower-breaking device is equipped with an advanced automatic liquid level regulation system. Through remote automatic control of the liquid level gauge, it monitors in real time to ensure the liquid level inside the tower remains stable within the optimal operating range. This prevents flooding, optimizes the washing effect, and reduces liquid accumulation, avoiding the burden on equipment operation caused by liquid buildup due to the tower-breaking device. The device is equipped with a condensate replacement pipe and a liquid level self-regulating downcomer, forming a circulation loop for efficient condensate replacement and discharge. This reduces manual intervention and improves operational safety and automation. Furthermore, the addition of an ammonia inlet on the tower body allows for timely replenishment of ammonia as needed to adjust the spray liquid composition, further enhancing the washing cooling capacity. The device is designed for ease of maintenance and repair; the components are rationally laid out and easy to disassemble, greatly facilitating subsequent maintenance and repair work. The device also features a pre-filtration mechanism to pre-filter particulate matter in the coke oven gas, reducing the pressure on subsequent spray cleaning, and the filter surface is self-cleaning. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a top view of the present invention;

[0022] Figure 3 This is a cross-sectional view of the circular air passage of this utility model;

[0023] Figure 4 This is a perspective view of the pre-filtration mechanism of this utility model.

[0024] In the diagram: 1. Gas inlet; 2. Tower tray; 3. Gas cap; 4. Annular cap; 5. Ammonia inlet pipe; 6. Condensate inlet; 7. Remote automatic level gauge; 8. Automatic control valve; 9. Automatic level downcomer; 10. Tower body; 11. Support; 12. Annular gas duct; 13. Ammonia inlet; 14. Circular gas duct; 15. Pre-filtration mechanism; 151. Annular seat; 152. Mesh frame; 153. Coarse filter screen; 154. Fine filter screen; 16. Vibration motor; 17. Slip ring; 18. Spring. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-4 This utility model provides a gas-liquid separation tower tray, including a tower body 10. Supports 11 are fixedly connected to the four sides of the inner wall of the tower body 10. A tower tray 2 is fixedly connected to the top of the four supports 11. Four gas caps 3 are evenly arranged at the top of the tower tray 2. An annular gas channel 12 is provided between the side wall of the tower tray 2 and the tower body 10. An annular gas cap 4 is welded to the inner wall of the tower body 10 above the annular gas channel 12 to discharge gas upwards. An ammonia inlet pipe 5 is fixedly connected to the top of one side of the inner wall of the tower tray 2. A remote-controlled automatic level gauge 7 is installed on the inner wall of the tower body 10 above the tower tray 2. A level-controlled downcomer 9 is installed in the middle of the inner wall of the tower body 10. An automatic regulating valve 8 is installed on the surface of the level-controlled downcomer 9 to automatically discharge liquid and prevent overflow. A circular gas channel 14 is provided inside the gas cap 3. A pre-filter mechanism 15 is installed at the bottom of the inner wall of the circular gas channel 14.

[0027] In operation, the broken tower tray 2 is equipped with four conventionally configured gas caps 3 and annular gas caps 4. Gas can enter the upper section not only through the original gas caps 3, but also through the annular gas caps 4. This dual-path design significantly increases the gas passage capacity and reduces the tower's own resistance. The newly added annular gas caps 4 not only further optimize the airflow distribution, making the gas flow within the tower more uniform and efficient, but also significantly enhance the stability and safety of the device. The reduced liquid level in the upper section of the tower tray lowers the requirements for supporting the broken tower tray 2 and constructing the tower body 10, effectively improving the return on investment and the economic efficiency of operation.

[0028] The bottom of the inner wall of the tower body 10 is provided with a gas inlet 1, and the top of the inner wall of the tower body 10 is provided with a condensate inlet 6. The bottom end of the ammonia water inlet pipe 5 is located above the broken tower tray 2. The side wall of the tower body 10 is provided with an ammonia water inlet 13 corresponding to the ammonia water inlet pipe 5 for inputting ammonia water. The inlet of the liquid level self-control downcomer 9 is located above the broken tower tray 2, and the outlet of the liquid level self-control downcomer 9 is located below the broken tower tray 2. The self-control regulating valve 8 is electrically connected to an external power supply through a remote self-control liquid level gauge 7 to control the operation.

[0029] In operation, coke oven gas is input from the lower section of the final cooling tower, and condensate is sprayed out from the upper end of the final cooling tower. A remote-controlled automatic level gauge 7 is installed on the side of the tower body 10 above the tower plate 2. It can transmit the level signal to the plant's central control room. It has the functions of remote level indication, remote automatic level adjustment, and remote level alarm. It can not only clearly indicate the level change remotely, but also has dual intelligent functions of automatic adjustment and instant alarm, ensuring safe and worry-free operation. The automatic control valve 8 on the automatic level downcomer 9 automatically adjusts the opening of the automatic control valve 8 through the precise signal output of the remote-controlled automatic level gauge 7, effectively optimizing the condensate flow path and greatly improving the overflow efficiency.

[0030] The pre-filtration mechanism 15 includes an annular seat 151, a mesh frame 152, a coarse filter 153, and a fine filter 154. The annular seat 151 is fixedly connected to the inner wall of the circular air passage 14. The mesh frame 152 is installed on the inner wall of the annular seat 151. The coarse filter 153 is fixedly installed at the bottom of the inner wall of the mesh frame 152, and the fine filter 154 is fixedly installed at the top of the inner wall of the mesh frame 152. Vibration motors 16 are fixedly installed on both sides of the top of the mesh frame 152 for filtering particulate impurities. A slip ring 17 is fixedly connected to the side wall of the mesh frame 152, and the slip ring 17 is slidably connected to the inner wall of the annular seat 151. Several springs 18 are fixedly connected to the top and bottom of the slip ring 17, and the several springs 18 are respectively fixedly connected to the top and bottom of the inner wall of the annular seat 151 for cleaning the filter screen.

[0031] In use, a pre-filtration mechanism 15 is installed inside the annular gas cap 4. The coarse filter 153 inside can filter large particles in the coke oven gas, and the fine filter 154 can filter small particles of impurities, thereby reducing the pressure of subsequent spray cleaning. With the cooperation of the slip ring 17 and the spring 18, the vibration motor 16 can be started to drive the filter screen to vibrate, shaking off the particulate impurities attached to the surface, thus achieving self-cleaning.

[0032] In practical use, this utility model's gas-liquid separation tower-breaking tray allows coal gas from the previous unit to enter the final cooling tower, where it undergoes initial cooling by circulating water, effectively reducing its temperature. The gas then passes through tower-breaking tray 2 into the upper section of the final cooling tower for secondary cooling. The condensate contacts the coal gas counter-currently within the final cooling tower, cooling and washing the gas. This not only further reduces the gas temperature but also effectively removes entrained solid particles, oil, and water-soluble gases through physical means. Tower-breaking tray 2 plays a crucial role in the entire cooling and purification process, cleverly dividing the coal gas cooling process into two efficient and independent stages. Precise control of gas temperature and composition is achieved. Coke oven gas, after passing through a primary cooling stage, enters the secondary cooling stage via the broken tower plate 2. The lower stage condensate is cooled using circulating water, while the upper stage condensate is cooled using low-temperature water. The lower stage condensate, due to its relatively high temperature, is directly cooled using circulating water. This measure is not only efficient and economical but also achieves cascaded heat utilization. The upper stage condensate, already close to or at a lower temperature range, uses low-temperature water as the cooling medium to further optimize cooling and reduce energy consumption. By implementing a segmented independent cooling system, dependence on low-temperature water resources is significantly reduced, effectively minimizing refrigeration costs. The machine's operating load and frequency are controlled, thus curbing unnecessary energy consumption at the source. A remote-controlled automatic level gauge 7, installed on the side of the tower body 10 above the broken tray 2, monitors and feeds back the liquid level information above the broken tray 2 in real time, achieving precise control of the liquid level status. This data is then transmitted to the automatic control system. Based on a preset liquid level control strategy, the system automatically adjusts the opening of the automatic control regulating valve 8 located on the automatic liquid level downcomer 9. The flexible adjustment of the automatic control regulating valve 8 can precisely control the flow rate of material flowing out of the area above the broken tray 2, thereby achieving dynamic balance and stable control of the liquid level. (The last sentence appears to be incomplete and possibly refers to a different topic: "from tar...") The residual ammonia water from the ammonia water separation process enters the tower break tray 2 through ammonia water inlet 13. The residual ammonia water can be used to refresh the upper section of gas condensate and prevent the accumulation of impurities and harmful substances. A pre-filtration mechanism 15 is set in the annular gas cap 4. The coarse filter screen 153 inside can filter large particles in the coke oven gas, and the fine filter screen 154 can filter small particles of impurities, thereby reducing the pressure of subsequent spray cleaning. With the cooperation of slip ring 17 and spring 18, the vibration motor 16 can be started to drive the filter screen to vibrate, shaking off the particulate impurities attached to the surface, realizing self-cleaning. The remote automatic control level gauge 7 is model LICA 0001, and the automatic control regulating valve 8 is model LV 0001.

[0033] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A gas-liquid separation tower tray, comprising a tower body (10), characterized in that: The tower body (10) has four fixed supports (11) on the four sides of the inner wall. A broken tower plate (2) is fixedly connected to the top of each of the four supports (11). Four gas caps (3) are evenly distributed on the top of the broken tower plate (2). An annular gas channel (12) is provided between the side wall of the broken tower plate (2) and the tower body (10). An annular gas cap (4) is welded to the inner wall of the tower body (10) above the annular gas channel (12). The inner wall of the broken tower plate (2) has one... Ammonia water inlet pipe (5) is fixedly connected to the top of the side. A remote automatic control level gauge (7) is installed on the inner wall of the tower body (10) above the broken tower tray (2). A level control downcomer (9) is installed in the middle of the inner wall of the tower body (10). An automatic control regulating valve (8) is installed on the surface of the level control downcomer (9). A circular gas channel (14) is provided inside the gas cap (3). A pre-filtering mechanism (15) is installed at the bottom of the inner wall of the circular gas channel (14).

2. The gas-liquid separation tray according to claim 1, characterized in that: The bottom of the inner wall of the tower body (10) is provided with a gas inlet (1), and the top of the inner wall of the tower body (10) is provided with a condensate inlet (6).

3. The gas-liquid separation tray according to claim 1, characterized in that: The bottom end of the ammonia water inlet pipe (5) is placed above the broken tower tray (2), and the side wall of the tower body (10) is provided with an ammonia water inlet (13) corresponding to the ammonia water inlet pipe (5).

4. The gas-liquid separation tray according to claim 1, characterized in that: The inlet of the self-controlled downcomer (9) is located above the broken tower tray (2), and the outlet of the self-controlled downcomer (9) is located below the broken tower tray (2).

5. A gas-liquid separation tray according to claim 1, characterized in that: The self-controlled regulating valve (8) is electrically connected to an external power supply via a remote self-controlled liquid level gauge (7).

6. A gas-liquid separation tray according to claim 1, characterized in that: The pre-filtration mechanism (15) includes an annular seat (151), a mesh frame (152), a coarse filter (153), and a fine filter (154). The annular seat (151) is fixedly connected to the inner wall of the circular air passage (14). The mesh frame (152) is installed on the inner wall of the annular seat (151). The coarse filter (153) is fixedly installed at the bottom of the inner wall of the mesh frame (152), and the fine filter (154) is fixedly installed at the top of the inner wall of the mesh frame (152).

7. A gas-liquid separation tray according to claim 6, characterized in that: Vibration motors (16) are fixedly installed on both sides of the top of the mesh frame (152), and slip rings (17) are fixedly connected to the side walls of the mesh frame (152), and the slip rings (17) are slidably connected to the inner wall of the annular seat (151).

8. A gas-liquid separation tray according to claim 7, characterized in that: The top and bottom of the slip ring (17) are fixedly connected to a plurality of springs (18), and the plurality of springs (18) are respectively fixedly connected to the top and bottom of the inner wall of the ring seat (151).

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