A liquid level regulating device for desulfurization liquid regeneration tower

Abstract

The utility model provides a liquid level regulating device for a desulfurization liquid regeneration tower, belonging to the technical field of desulfurization regeneration towers. It includes a tower body and a liquid level regulating mechanism, the top of the tower body is fixedly connected to an air outlet pipe, the liquid level regulating mechanism includes a liquid storage bin, the liquid storage bin is fixedly installed inside the tower body, an air outlet hole is opened on the top of the liquid storage bin, a floating block is arranged inside the liquid storage bin, and a pressure sensor is fixedly installed inside the floating block. By installing the liquid storage bin inside the tower body, a floating block is installed inside the liquid storage bin, and a pressure sensor is installed inside the floating block, and an extrusion rod is slidably installed inside the floating block, the floating block can be moved up and down by the rise or fall of the liquid level inside the liquid storage bin, so that the pressure sensor detects the pressure as a signal, and the desulfurization liquid is added to the liquid storage bin in time through the pumping machine, so as to ensure that there is a certain amount of desulfurization liquid inside the liquid storage bin, fully treat the sulfur, and avoid air pollution.

Description

Technical Field

[0001] The utility model relates to the technical field of desulfurization regeneration towers, in particular to a liquid level regulating device for a desulfurization liquid regeneration tower. Background Art

[0002] The desulfurization liquid regeneration tower is a key equipment in the flue gas desulfurization process. It is used to recover and reuse the absorption liquid, usually calcium oxide solution or ammonia water. The calcium oxide or ammonia water reacts with sulfur to avoid sulfide emissions into the air, so as to reduce environmental pollution. The desulfurization liquid regeneration tower uses desulfurization liquid. To ensure the desulfurization effect, the liquid level regulating device plays an important role in the desulfurization liquid regeneration tower, helping to maintain the appropriate liquid level and ensure the effectiveness of the desulfurization process.

[0003] At present, the desulfurization liquid in the desulfurization liquid regeneration tower is installed at the upper end of the regeneration tower. When sulfide enters the desulfurization liquid, it will react with the desulfurization liquid, causing the desulfurization liquid to be continuously consumed. Since the desulfurization liquid is at the upper end of the regeneration tower, it is located at a higher position and is not easy to add. This results in that when a certain amount of desulfurization liquid is consumed, if it is not replenished in time, the sulfur treatment will be reduced, and ultimately the exhaust gas will contain sulfide, which will cause air pollution. Therefore, we propose a desulfurization liquid regeneration tower liquid level regulating device to solve the above problems. Utility Model Content

[0004] In order to make up for the above deficiencies, the utility model provides a desulfurization liquid regeneration tower liquid level regulating device that overcomes the above technical problems or at least partially solves the above problems.

[0005] The utility model is achieved in this way:

[0006] The utility model provides a liquid level regulating device for a desulfurization liquid regeneration tower, comprising a tower body, the top of which is fixedly connected to an air outlet pipe;

[0007] A liquid level regulating mechanism, the liquid level regulating mechanism comprising:

[0008] A liquid storage bin, the liquid storage bin is fixedly installed inside the tower body, an air outlet is provided on the top of the liquid storage bin, a cleaning mechanism is installed inside the liquid storage bin, the cleaning mechanism includes a scraper, a transmission shaft and a driving wheel, the top of the tower body is fixedly connected to a driving motor, the output end of the driving motor is fixedly connected to a transmission shaft, one end of the transmission shaft passes through the top of the liquid storage bin and is rotatably connected to the inside of the liquid storage bin, the bottom of the transmission shaft is fixedly connected to a disc, the bottom of the disc is fixedly connected to a scraper, the bottom of the scraper is slidably connected to the bottom of the liquid storage bin, the bottom of the liquid storage bin is fixedly connected to a slag discharge pipe, and an electric control valve is installed on the outer surface of the slag discharge pipe;

[0009] A pressure sensor, a floating block is arranged inside the liquid storage tank, a pressure sensor is fixedly installed inside the floating block, and an extrusion rod is slidably installed inside the floating block;

[0010] A liquid pumping machine, the outer surface of the tower body is fixedly connected to a liquid storage cylinder, the top of the liquid storage cylinder is fixedly connected to the liquid pumping machine, the liquid outlet end of the liquid pumping machine is fixedly connected to a pipeline, and one end of the pipeline is fixedly connected to the interior of the liquid storage tank.

[0011] In a preferred solution, the interior of the tower body is fixedly connected to a conical bin, the top of the conical bin is fixedly connected to an air pipe, one end of the air pipe passes through the top of the liquid storage bin and is fixedly installed inside the liquid storage bin.

[0012] In a preferred solution, the inner wall of the liquid storage cylinder is fixedly connected to a liquid level sensor, the liquid level sensor is electrically connected to a display, and the display is fixedly mounted on the outer surface of the liquid storage cylinder.

[0013] In a preferred embodiment, a sliding groove is provided on the inner wall of the floating block, a slider is arranged inside the sliding groove, one side of the slider is fixedly connected to the extrusion rod, one inner wall of one side of the sliding groove is fixedly connected to a spring, and one end of the spring is fixedly connected to one side of the slider.

[0014] In a preferred solution, the pressure sensor is electrically connected to a PLC controller, the PLC controller is electrically connected to a liquid pumping machine, the liquid inlet end of the liquid pumping machine is fixedly connected to a circular tube, and one end of the circular tube is fixedly installed inside a liquid storage cylinder.

[0015] The utility model provides a desulfurization liquid regeneration tower liquid level regulating device, and its beneficial effects include:

[0016] 1. A liquid storage tank is installed inside the tower body, a float is installed inside the liquid storage tank, and a pressure sensor is installed inside the float. At the same time, an extrusion rod is slidably installed inside the float. The float can move up and down through the rise or fall of the liquid level inside the liquid storage tank. The pressure sensor detects the pressure as a signal, and the desulfurization liquid is added to the liquid storage tank in time through the pump to ensure that there is a certain amount of desulfurization liquid inside the liquid storage tank, so as to fully treat the sulfur and avoid air pollution.

[0017] 2. By installing a driving motor on the top of the tower body, the driving motor controls the rotation of the transmission shaft and drives the scraper to continuously scrape at the bottom of the liquid storage tank, so as to scrape off the silt at the bottom of the liquid storage tank and discharge it from the inside of the liquid storage tank, so as to keep the inside of the liquid storage tank clean for use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the location of the PLC controller of the utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of the tower body of the utility model;

[0022] Figure 4 This is a schematic diagram of the top structure of the liquid storage bin of the utility model;

[0023] Figure 5 This is a schematic diagram of the internal structure of the liquid storage bin of the utility model;

[0024] Figure 6 This is a schematic diagram of the internal structure of the floating block of the utility model;

[0025] Figure 7 This is a schematic diagram of the internal structure of the liquid storage cylinder of the utility model;

[0026] In the figure: 1. tower body; 2. air outlet pipe; 3. liquid level adjustment mechanism; 31. liquid storage tank; 311. air outlet; 32. pressure sensor; 321. float block; 322. extrusion rod; 33. pump; 331. liquid storage cylinder; 332. pipeline; 4. conical bin; 5. air pipe; 6. liquid level sensor; 7. display; 8. sliding groove; 9. slider; 10. spring; 11. PLC controller; 12. cleaning mechanism; 121. scraper; 122. transmission shaft; 13. driving motor; 14. disc; 15. slag discharge pipe; 16. electric control valve. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Example

[0029] Reference Figure 1-Figure 7 The utility model provides a technical solution: a liquid level regulating device for a desulfurization liquid regeneration tower, comprising a tower body 1 and a liquid level regulating mechanism 3, the top of the tower body 1 is fixedly connected to an air outlet pipe 2, the liquid level regulating mechanism 3 comprises a liquid storage tank 31, the liquid storage tank 31 is fixedly installed inside the tower body 1, an air outlet hole 311 is opened on the top of the liquid storage tank 31, a floating block 321 is arranged inside the liquid storage tank 31, a pressure sensor 32 is fixedly installed inside the floating block 321, an extrusion rod 322 is slidably installed inside the floating block 321, a liquid storage cylinder 331 is fixedly connected to the outer surface of the tower body 1, the top of the liquid storage cylinder 331 is fixedly connected to a pumping machine 33, the liquid outlet end of the pumping machine 33 is fixedly connected to a pipe 332, and one end of the pipe 332 is fixedly connected to the inside of the liquid storage tank 31.

[0030] In a preferred embodiment, the interior of the tower body 1 is fixedly connected to a conical bin 4, the top of the conical bin 4 is fixedly connected to a gas pipe 5, one end of the gas pipe 5 passes through the top of the liquid storage bin 31, and is fixedly installed inside the liquid storage bin 31. In order to prevent the flue gas from being directly discharged from the inside of the tower body 1 to the position of the exhaust pipe 2, a conical bin 4 is installed inside the tower body 1. The conical bin 4 seals the interior of the tower body 1, so that the flue gas can be completely transported from the inside of the conical bin 4 to the inside of the gas pipe 5, and then all the flue gas can be transported to the inside of the liquid storage bin 31, so as to treat the sulfur in the flue gas.

[0031] In a preferred embodiment, the inner wall of the liquid storage cylinder 331 is fixedly connected to the liquid level sensor 6, and the liquid level sensor 6 is electrically connected to the display 7. The display 7 is fixedly installed on the outer surface of the liquid storage cylinder 331. In daily use, in order to prevent the desulfurization liquid inside the liquid storage cylinder 331 from running out and not being added in time, which will affect the treatment of sulfur substances in the flue gas, a liquid level sensor 6 is installed inside the liquid storage cylinder 331. The liquid level inside the liquid storage cylinder 331 is detected by the liquid level sensor 6, so that the desulfurization liquid can be added to the liquid storage cylinder 331 in time to meet the use.

[0032] In a preferred embodiment, a sliding groove 8 is provided on the inner wall of the floating block 321, a slider 9 is arranged inside the sliding groove 8, one side of the slider 9 is fixedly connected to the extrusion rod 322, a spring 10 is fixedly connected to the inner wall of one side of the sliding groove 8, and one end of the spring 10 is fixedly connected to one side of the slider 9. In order to ensure that the extrusion rod 322 can slide up and down stably inside the floating block 321, a sliding groove 8 is provided on the inner wall of the floating block 321, and the slider 9 is fixedly connected to the extrusion rod 322, so as to control the stable movement of the extrusion rod 322, and the pressure sensor 322 is pressed. 2 Stable extrusion, at the same time, the pressure sensor 32 is electrically connected to the PLC controller 11, the PLC controller 11 is electrically connected to the pumping machine 33, the liquid inlet end of the pumping machine 33 is fixedly connected to the round tube, one end of the round tube is fixedly installed inside the liquid storage cylinder 331, when the pressure sensor 32 detects the existence of pressure, it can control the pumping machine 33 to work through the PLC controller 11, and the desulfurization liquid inside the liquid storage cylinder 331 is extracted into the liquid storage tank 31 through the pumping machine 33, so as to ensure the amount of desulfurization liquid inside the liquid storage tank 31 and the sulfur treatment effect.

[0033] The long-term storage of desulfurization liquid in the liquid storage bin 31 will cause sludge to be present on the bottom of the liquid storage bin 31, which will affect the sulfur treatment effect of the desulfurization liquid in the long run. Therefore, a cleaning mechanism 12 is installed inside the liquid storage bin 31. The cleaning mechanism 12 includes a scraper 121 and a transmission shaft 122. The top of the tower body 1 is fixedly connected to the drive motor 13, and the output end of the drive motor 13 is fixedly connected to the transmission shaft 122. One end of the transmission shaft 122 passes through the top of the liquid storage bin 31 and is rotatably connected to the inside of the liquid storage bin 31. The bottom of the transmission shaft 122 is fixedly connected to the disc 14, and the bottom of the disc 14 is fixedly connected to the bottom of the disc 14. The scraper 121 is connected, and the bottom of the scraper 121 is slidably connected to the bottom position of the liquid storage bin 31. The bottom of the liquid storage bin 31 is fixedly connected to the slag discharge pipe 15, and the outer surface of the slag discharge pipe 15 is installed with an electric control valve 16. In actual use, by installing a drive motor 13 on the top of the tower body 1, the drive motor 13 controls the rotation of the transmission shaft 122, and drives the scraper 121 to continuously scrape at the bottom position of the liquid storage bin 31, so that the silt at the bottom position of the liquid storage bin 31 can be scraped off and discharged from the inside of the liquid storage bin 31, so as to keep the inside of the liquid storage bin 31 clean to meet the use requirements.

[0034] Specifically, the working process or working principle of a desulfurization liquid regeneration tower liquid level regulating device is as follows: At present, the desulfurization liquid inside the desulfurization liquid regeneration tower is installed at the upper end of the regeneration tower. When sulfide enters the desulfurization liquid, it will react with the desulfurization liquid, causing the desulfurization liquid to be continuously consumed. Since the desulfurization liquid is at the upper end of the regeneration tower, it is at a higher position and is not easy to add. This results in that when a certain amount of desulfurization liquid is consumed, if it is not replenished in time, the sulfur treatment will be reduced, and finally the exhaust gas contains sulfide, which will cause air pollution. Contamination, so we designed this device to solve this problem, connect the external power supply, and transport the sulfur-containing flue gas from the outside to the inside of the tower body 1 through the air inlet on the tower body 1. The flue gas will continue to move upward inside the tower body 1 and enter the inside of the conical bin 4. The conical bin 4 is connected to the air pipe 5, so that the flue gas can enter the inside of the air pipe 5 through the conical bin 4, and one end of the air pipe 5 is installed at the bottom end of the liquid storage bin 31. The liquid storage bin 31 stores a certain amount of desulfurization liquid, and the sulfur in the flue gas is removed by the desulfurization liquid.

[0035] The amount of desulfurization liquid will be reduced by the reaction between the desulfurization liquid and sulfur. When the amount of desulfurization liquid is reduced, the sulfur treatment effect will be affected, resulting in the flue gas finally discharged into the air still containing sulfur substances. In order to prevent such a situation from happening, the present device is provided with a float 321 inside the liquid storage bin 31, and a pressure sensor 32 and a slidable squeezing rod 322 are installed inside the float 321. When the liquid level drops, the squeezing rod 322 will not squeeze the top of the liquid storage bin 31, thereby not squeezing the pressure sensor 32. When the pressure sensor 32 cannot detect the existence of pressure, the desulfurization liquid inside the liquid storage cylinder 331 will be extracted by the pump 33 and transported to the liquid storage bin 31 through the pipeline 332. When the liquid level inside the liquid storage bin 31 continues to rise, the float 321 will move upward, and one end of the squeezing rod 322 will press against the position of the top of the liquid storage bin 31, and the other end will squeeze the pressure sensor 32 to generate pressure, thereby determining the amount of desulfurization liquid inside the liquid storage bin 31, and being able to completely treat the sulfur.

[0036] The desulfurization liquid inside the liquid storage tank 31 is retained in the liquid storage tank 31 for a long time, which will cause sludge to be generated at the bottom of the liquid storage tank 31, affecting the sulfur treatment effect of the desulfurization liquid. Therefore, after the sulfur treatment is completed, the drive motor 13 can be turned on, and the drive shaft 122 can be driven to rotate by the drive motor 13, and the scraper 121 can be driven to continuously rotate and scrape at the bottom of the liquid storage tank 31 to scrape off the sludge on the bottom of the liquid storage tank 31, and then the slag discharge pipe 15 is opened, and the waste liquid can be discharged from the liquid storage tank 31 from the position of the slag discharge pipe 15, and finally discharged from the tower body 1 through the liquid outlet pipe at the bottom of the tower body 1.

[0037] The device installs a liquid level sensor 6 inside the liquid storage cylinder 331, which can detect the liquid level inside the liquid storage cylinder 331 in time and display the remaining amount on the display 7, and can add desulfurization liquid into the liquid storage cylinder 331 in time to meet the needs of use.

[0038] It should be noted that the pressure sensor 32, the pump 33, the liquid level sensor 6, the display 7, the PLC controller 11, the drive motor 13 and the electric control valve 16 are devices or equipment existing in the prior art, or are devices or equipment that can be realized in the prior art. Their power supply, specific composition and principles are clear to those skilled in the art, so they will not be described in detail.

Claims

1. A desulfurization liquid regeneration tower liquid level regulating device, characterized in that: It comprises a tower body (1), the top of which is fixedly connected to an air outlet pipe (2); A liquid level regulating mechanism (3), the liquid level regulating mechanism (3) comprising: A liquid storage bin (31), wherein the liquid storage bin (31) is fixedly installed inside the tower body (1), and an air outlet (311) is provided at the top of the liquid storage bin (31); A pressure sensor (32), a floating block (321) is arranged inside the liquid storage tank (31), the pressure sensor (32) is fixedly installed inside the floating block (321), and an extrusion rod (322) is slidably installed inside the floating block (321); A liquid pump (33), wherein the outer surface of the tower body (1) is fixedly connected to a liquid storage cylinder (331), the top of the liquid storage cylinder (331) is fixedly connected to the liquid pump (33), the liquid outlet end of the liquid pump (33) is fixedly connected to a pipeline (332), and one end of the pipeline (332) is fixedly connected to the inside of the liquid storage tank (31).

2. A desulfurization liquid regeneration tower liquid level regulating device according to claim 1, characterized in that: The interior of the tower body (1) is fixedly connected to a conical bin (4), the top of the conical bin (4) is fixedly connected to an air supply pipe (5), one end of the air supply pipe (5) passes through the top of the liquid storage bin (31) and is fixedly installed inside the liquid storage bin (31).

3. A desulfurization liquid regeneration tower liquid level regulating device according to claim 2, characterized in that: The inner wall of the liquid storage cylinder (331) is fixedly connected to a liquid level sensor (6), the liquid level sensor (6) is electrically connected to a display (7), and the display (7) is fixedly mounted on the outer surface of the liquid storage cylinder (331).

4. A desulfurization liquid regeneration tower liquid level regulating device according to claim 3, characterized in that: A sliding groove (8) is provided on the inner wall of the floating block (321), a sliding block (9) is arranged inside the sliding groove (8), one side of the sliding block (9) is fixedly connected to the extrusion rod (322), one side inner wall of the sliding groove (8) is fixedly connected to a spring (10), and one end of the spring (10) is fixedly connected to one side of the sliding block (9).

5. A desulfurization liquid regeneration tower liquid level regulating device according to claim 4, characterized in that: The pressure sensor (32) is electrically connected to the PLC controller (11), and the PLC controller (11) is electrically connected to the liquid pumping machine (33). The liquid inlet end of the liquid pumping machine (33) is fixedly connected to a circular tube, and one end of the circular tube is fixedly installed inside the liquid storage cylinder (331).

6. A desulfurization liquid regeneration tower liquid level regulating device according to claim 5, characterized in that: A cleaning mechanism (12) is installed inside the liquid storage bin (31), and the cleaning mechanism (12) comprises a scraper (121) and a transmission shaft (122).

7. A desulfurization liquid regeneration tower liquid level regulating device according to claim 6, characterized in that: The top of the tower body (1) is fixedly connected to a drive motor (13), the output end of the drive motor (13) is fixedly connected to a transmission shaft (122), one end of the transmission shaft (122) passes through the top of the liquid storage bin (31) and is rotatably connected to the inside of the liquid storage bin (31), and the bottom of the transmission shaft (122) is fixedly connected to a disc (14).

8. A desulfurization liquid regeneration tower liquid level regulating device according to claim 7, characterized in that: The bottom of the disc (14) is fixedly connected to a scraper (121), the bottom of the scraper (121) is slidably connected to the bottom of a liquid storage bin (31), the bottom of the liquid storage bin (31) is fixedly connected to a slag discharge pipe (15), and an electric control valve (16) is installed on the outer surface of the slag discharge pipe (15).

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