Power plant boiler make-up water treatment clarification tank

Abstract

The utility model relates to the technical field of water treatment, in particular to a power plant boiler make-up water treatment clarification tank which comprises a tank body, a cover plate fixedly arranged on the tank body, a water inlet pipe communicated with the cover plate and a screw feeder fixedly arranged on the cover plate, and the screw feeder is communicated with the tank body. The sedimentation tank is arranged in the tank body, the filter cartridge is fixedly arranged between the sedimentation tank and the cover plate, the supporting disc is arranged in the sedimentation tank in a sliding mode, and a plurality of electric push rods are fixedly arranged between the supporting disc and the inner bottom wall of the sedimentation tank; the water outlet pipe is arranged on the side wall of the tank body in a communicating mode, the stirring mechanism is arranged on the supporting disc, and through the technical scheme, the problem that the treatment efficiency is affected due to the fact that the filter plate needs to be frequently cleaned and replaced in the make-up water treatment process in the related technology is solved.

Description

Technical Field

[0001] This utility model relates to the field of water treatment technology, specifically to a clarification tank for treating boiler feedwater in power plants. Background Technology

[0002] Boiler feedwater treatment is a crucial aspect of power plant production systems, impacting not only the safe and economical operation of the boiler but also the company's operating costs and energy efficiency. Substandard water quality can lead to scaling and corrosion in the boiler and turbine. Therefore, feedwater must undergo rigorous desalination, hardness, fluoride, and silica removal treatments before being used in the boiler. Furthermore, the appropriate treatment process should be selected based on the water's source and characteristics. Inappropriate treatment methods can increase initial investment and operating costs, and in severe cases, disrupt the normal operation of the power plant.

[0003] Makeup water needs to be filtered, desalinated, and treated before being used in boilers. Currently, boiler makeup water treatment often employs mechanical filtration combined with membrane treatment. Mechanical accelerated clarification tanks integrate mixing, reaction, and separation processes, resulting in a large water production per unit area and high treatment efficiency. However, during the filtration process, impurities in the makeup water adhere to the surface of the mechanical filter plates, requiring frequent replacement and cleaning of the filter plates, thus affecting the treatment efficiency of the makeup water. Utility Model Content

[0004] This utility model proposes a clarification tank for boiler feedwater treatment in power plants, which solves the problem in related technologies where frequent cleaning and replacement of filter plates are required during feedwater treatment, thus affecting treatment efficiency.

[0005] The technical solution of this utility model is as follows: A clarification tank for boiler makeup water treatment in a power plant includes a tank body, a cover plate fixedly installed on the tank body, an inlet pipe connected to the cover plate, a screw feeder fixedly installed on the cover plate, the screw feeder being connected to the tank body, and further includes a sedimentation tank, a filter cylinder, a support plate, an outlet pipe, a stirring mechanism, a cleaning mechanism, and a telescopic pipe. The sedimentation tank is disposed in the tank body, the filter cylinder is fixedly disposed between the sedimentation tank and the cover plate, the support plate is slidably disposed in the sedimentation tank, and multiple electric push rods are fixedly disposed between the support plate and the inner bottom wall of the sedimentation tank. The outlet pipe is connected to the side wall of the tank body, the stirring mechanism is disposed on the support plate for stirring the makeup water and flocculant, the cleaning mechanism is disposed in the filter cylinder for cleaning the filter cylinder, and the telescopic pipe penetrates and is fixedly disposed between the support plate and the inner bottom wall of the tank body.

[0006] Preferably, the stirring mechanism includes:

[0007] A stirring column, which is rotatably mounted on the support plate;

[0008] A stirring rod, wherein multiple stirring rods are fixedly disposed on the side wall of the stirring column;

[0009] A first rotating mechanism is disposed within the support plate and is used to drive the stirring column to rotate.

[0010] Furthermore, the first rotating mechanism includes:

[0011] A first cavity is formed inside the support plate, and the stirring column passes through the first cavity;

[0012] A first toothed ring is fixedly mounted on the stirring column;

[0013] The first gear is rotatably disposed within the first cavity and meshes with the first gear ring.

[0014] The first motor is fixedly mounted on the support plate, and its output end is fixedly connected to the first gear.

[0015] Furthermore, the cleaning mechanism includes:

[0016] A cleaning ring is disposed inside the filter cylinder, and a fixing rod is fixedly disposed between the cleaning ring and the side wall of the stirring column. The side wall of the cleaning ring is provided with multiple cleaning grooves.

[0017] A cleaning roller is rotatably disposed in the cleaning tank, and cleaning bristles are evenly distributed on the side wall of the cleaning roller, which are in contact with the filter cartridge.

[0018] The second rotating mechanism is disposed on the cleaning ring and is used to drive the cleaning roller to rotate.

[0019] Furthermore, the second rotating mechanism includes:

[0020] The second cavity is provided inside the cleaning ring on one side of the cleaning groove;

[0021] The first bevel gear is rotatably mounted on the inner top wall of the second cavity.

[0022] A connecting rod is fixedly provided between the first bevel gear and the cleaning roller;

[0023] The second bevel gear is rotatably mounted on the side wall of the second cavity, and the second bevel gear meshes with the first bevel gear;

[0024] A synchronous rotation mechanism is provided on the stirring column to drive multiple second bevel gears to rotate synchronously.

[0025] Based on the above scheme, the synchronous rotation mechanism includes:

[0026] A third cavity is formed on the stirring column;

[0027] A drive rod is fixedly mounted on the second bevel gear, with one end of the drive rod away from the second bevel gear extending into the third cavity, and the drive rod is rotatably connected to the side wall of the third cavity;

[0028] The third bevel gear is fixedly mounted on the drive rod;

[0029] A fourth bevel gear is rotatably mounted on the inner bottom wall of the third cavity, and the fourth bevel gear meshes with the third bevel gear;

[0030] A drive mechanism is provided on the stirring column and is used to drive the fourth bevel gear to rotate.

[0031] Based on the above solution, the drive mechanism includes:

[0032] The second motor is fixedly mounted on the stirring column;

[0033] A drive column is fixedly disposed between the output end of the second motor and the fourth bevel gear.

[0034] Based on the above scheme, a scraper is fixedly provided on the side wall of the cleaning ring away from the support plate, and the scraper is in contact with the side wall of the filter cartridge.

[0035] Based on the above scheme, the side wall of the pool is fixedly equipped with support legs.

[0036] Based on the above scheme, a reverse osmosis membrane is fixedly installed between the sedimentation tank and the side wall of the pool.

[0037] The working principle and beneficial effects of this utility model are as follows:

[0038] 1. In this utility model, by setting up a stirring mechanism, makeup water and flocculant can be added to the sedimentation tank through the water inlet pipe and the screw conveyor respectively. Then, the operation of the first motor can drive the first gear to rotate. At the same time, the meshing of the first gear and the first gear ring drives the stirring column to rotate, thereby facilitating the stirring of makeup water and flocculant by the stirring rod, so as to facilitate the full mixing of makeup water and flocculant, thereby improving the impurity removal effect of makeup water;

[0039] 2. In this utility model, by setting up an electric push rod and a support plate, after the impurities in the makeup water undergo flocculation and sedimentation, the operation of the electric push rod can drive the support plate and the makeup water to be lifted in the sedimentation tank, so that the makeup water flows out through the filter cylinder and achieves filtration of the makeup water in the process of flowing out.

[0040] 3. In this utility model, through the setting of the cleaning mechanism, during the movement of the support plate, the second motor can drive the drive column and the fourth bevel gear to rotate. At the same time, the meshing of the fourth bevel gear and the third bevel gear drives the third bevel gear and the second bevel gear to rotate. Then, the meshing of the second bevel gear and the first bevel gear drives the first bevel gear and the cleaning roller to rotate. Thus, the cleaning brush bristles on the surface of the cleaning roller can clean the filter cartridge. At the same time, during the movement of the cleaning ring, the scraper can remove impurities, thereby reducing the replacement frequency of the filter cartridge and improving the water supply treatment efficiency.

[0041] 4. In this utility model, the arrangement of a sedimentation tank, a filter cylinder, a support plate, a water outlet pipe, a stirring mechanism, a cleaning mechanism, and a telescopic pipe facilitates the flocculation, sedimentation, and filtration of the makeup water by moving the support plate. At the same time, the filter cylinder can be cleaned by moving and rotating the cleaning roller, thereby solving the problem in related technologies where frequent cleaning and replacement of the filter plate is required during the makeup water treatment process, which affects the treatment efficiency. Attached Figure Description

[0042] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0043] Figure 1 This is a schematic diagram of the structure of this utility model;

[0044] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0045] Figure 3 This is a cross-sectional view of the present invention from another perspective;

[0046] Figure 4 This is a cross-sectional view of the cleaning mechanism of this utility model;

[0047] Figure 5 This utility model Figure 4 A magnified schematic diagram of the structure at point A in the middle.

[0048] In the diagram: 1. Tank body; 2. Cover plate; 3. Inlet pipe; 4. Screw feeder; 5. Sedimentation tank; 6. Filter cartridge; 7. Support plate; 8. Electric push rod; 9. Outlet pipe; 10. Telescopic pipe; 11. Stirring column; 12. Stirring rod; 13. First gear; 14. First motor; 15. Cleaning ring; 16. Cleaning roller; 17. First bevel gear; 18. Second bevel gear; 19. Drive rod; 20. Third bevel gear; 21. Fourth bevel gear; 22. Second motor; 23. Scraper; 24. Reverse osmosis membrane. Detailed Implementation

[0049] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0050] like Figures 1-5 As shown in the figure, this embodiment proposes a clarification tank for boiler feedwater treatment in a power plant, including a tank body 1, a cover plate 2 fixedly installed on the tank body 1, an inlet pipe 3 connected to the cover plate 2, a screw feeder 4 fixedly installed on the cover plate 2, and the screw feeder 4 connected to the tank body 1. It also includes a sedimentation tank 5, a filter cylinder 6, a support plate 7, an outlet pipe 9, a stirring mechanism, a cleaning mechanism, and a telescopic pipe 10. The sedimentation tank 5 is disposed inside the tank body 1, the filter cylinder 6 is fixedly disposed between the sedimentation tank 5 and the cover plate 2, and the support plate 7 is slidably disposed on the sedimentation tank. Inside the tank 5, multiple electric push rods 8 are fixedly installed between the support plate 7 and the inner bottom wall of the sedimentation tank 5. The water outlet pipe 9 is connected to the side wall of the pool body 1. The stirring mechanism is installed on the support plate 7 and is used to stir the makeup water and flocculant. The cleaning mechanism is installed inside the filter cartridge 6 and is used to clean the filter cartridge 6. The telescopic pipe 10 passes through and is fixedly installed between the support plate 7 and the inner bottom wall of the pool body 1. A reverse osmosis membrane 24 is fixedly installed between the sedimentation tank 5 and the side wall of the pool body 1. Support legs are fixedly installed on the side wall of the pool body 1.

[0051] Reference Figures 2-4The stirring mechanism includes a stirring column 11, stirring rods 12, and a first rotating mechanism. The stirring column 11 is rotatably mounted on the support plate 7. Multiple stirring rods 12 are fixedly mounted on the side wall of the stirring column 11. The first rotating mechanism is located inside the support plate 7 and is used to drive the stirring column 11 to rotate. The first rotating mechanism includes a first cavity, a first gear ring, a first gear 13, and a first motor 14. The first cavity is opened inside the support plate 7, and the stirring column 11 passes through the first cavity. The first gear ring is fixedly mounted on the stirring column 11, and the first gear 13 is rotatably mounted inside the first cavity. The first gear 13 interacts with the first... The gear ring meshes with the first motor 14, which is fixedly mounted on the support plate 7. The output end of the first motor 14 is fixedly connected to the first gear 13. Makeup water and flocculant can be added to the sedimentation tank 5 through the water inlet pipe 3 and the screw conveyor, respectively. Then, the operation of the first motor 14 can drive the first gear 13 to rotate. At the same time, the meshing of the first gear 13 and the first gear ring drives the stirring column 11 to rotate, which facilitates the stirring of the makeup water and flocculant by the stirring rod 12. This makes it easier for the makeup water and flocculant to be fully mixed, thereby improving the impurity removal effect of the makeup water.

[0052] Reference Figure 4 and Figure 5 The cleaning mechanism includes a cleaning ring 15, a cleaning roller 16, and a second rotating mechanism. The cleaning ring 15 is disposed inside the filter cylinder 6. A fixing rod is fixed between the cleaning ring 15 and the side wall of the stirring column 11. Multiple cleaning grooves are opened on the side wall of the cleaning ring 15. The cleaning roller 16 is rotatably disposed in the cleaning groove. The side wall of the cleaning roller 16 is evenly distributed with cleaning bristles, which contact the filter cylinder 6. The second rotating mechanism is disposed on the cleaning ring 15 and is used to drive the cleaning roller 16 to rotate. The rotation of the stirring column 11 can drive the cleaning roller 16 to move around the stirring column 11. At the same time, the operation of the second rotating mechanism can drive the cleaning roller 16 to rotate, so that the cleaning bristles on the surface of the cleaning roller 16 can clean the impurities attached to the surface of the filter cylinder 6.

[0053] Reference Figure 4 and Figure 5The second rotating mechanism includes a second cavity, a first bevel gear 17, a second bevel gear 18, and a synchronous rotating mechanism. A second cavity is formed inside the cleaning ring 15 on one side of the cleaning tank. The first bevel gear 17 is rotatably mounted on the inner top wall of the second cavity. A connecting rod is fixedly mounted between the first bevel gear 17 and the cleaning roller 16. The second bevel gear 18 is rotatably mounted on the side wall of the second cavity and meshes with the first bevel gear 17. The synchronous rotating mechanism is mounted on the stirring column 11 and is used to drive multiple second bevel gears 18 to rotate. The synchronous rotation mechanism includes a third cavity, a drive rod 19, a third bevel gear 20, a fourth bevel gear 21, and a drive mechanism. The third cavity is located on the stirring column 11. The drive rod 19 is fixedly mounted on the second bevel gear 18, with one end of the drive rod 19 extending into the third cavity away from the second bevel gear 18. The drive rod 19 is rotatably connected to the side wall of the third cavity. The third bevel gear 20 is fixedly mounted on the drive rod 19, and the fourth bevel gear 21 is rotatably mounted on the inner bottom wall of the third cavity. The fourth bevel gear 21 is synchronized with the third bevel gear 20. The meshing and driving mechanism is mounted on the stirring column 11 to drive the fourth bevel gear 21 to rotate. The driving mechanism includes a second motor 22 and a driving column. The second motor 22 is fixedly mounted on the stirring column 11, and the driving column is fixedly mounted between the output end of the second motor 22 and the fourth bevel gear 21. A scraper 23 is fixedly mounted on the side wall of the cleaning ring 15 away from the support plate 7. The scraper 23 contacts the side wall of the filter cylinder 6. During the movement of the support plate 7, the second motor 22 can drive the driving column and the fourth bevel gear 21 to rotate. At the same time, the meshing of the fourth bevel gear 21 with the third bevel gear 20 drives the third bevel gear 20 and the second bevel gear 18 to rotate. Then, the meshing of the second bevel gear 18 with the first bevel gear 17 drives the first bevel gear 17 and the cleaning roller 16 to rotate. Thus, the cleaning brush bristles on the surface of the cleaning roller 16 can clean the filter cylinder 6. At the same time, during the movement of the cleaning ring 15, the scraper 23 can scrape off impurities, thereby reducing the replacement frequency of the filter cylinder 6 and improving the water supply treatment efficiency.

[0054] In this embodiment, during use, makeup water and flocculant can be added to the sedimentation tank 5 through the inlet pipe 3 and the screw conveyor, respectively. Then, the operation of the first motor 14 drives the first gear 13 to rotate, and the meshing of the first gear 13 with the first gear ring drives the stirring column 11 to rotate. This facilitates the stirring of the makeup water and flocculant by the stirring rod 12, ensuring thorough mixing. After the impurities in the makeup water flocculate and settle, the operation of the electric push rod 8 drives the support plate 7 and the makeup water to be lifted within the sedimentation tank 5, allowing the makeup water to flow out through the filter cylinder 6 and achieve [further processing / processing]. During the filtration of the makeup water, the second motor 22 drives the drive column and the fourth bevel gear 21 to rotate. Simultaneously, the meshing of the fourth bevel gear 21 with the third bevel gear 20 drives the third bevel gear 20 and the second bevel gear 18 to rotate. Furthermore, the meshing of the second bevel gear 18 with the first bevel gear 17 drives the first bevel gear 17 and the cleaning roller 16 to rotate. Thus, the cleaning brush bristles on the surface of the cleaning roller 16 can clean the filter cartridge 6. At the same time, during the movement of the cleaning ring 15, the scraper 23 can scrape off impurities, thereby reducing the replacement frequency of the filter cartridge 6 and improving the makeup water treatment efficiency.

[0055] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A clarification tank for boiler feedwater treatment in a power plant, comprising a tank body (1), a cover plate (2) fixedly installed on the tank body (1), an inlet pipe (3) connected to the cover plate (2), and a screw feeder (4) fixedly installed on the cover plate (2), the screw feeder (4) being connected to the tank body (1), characterized in that, Also includes: A sedimentation tank (5) is disposed inside the pool body (1); A filter cylinder (6) is fixedly disposed between the sedimentation tank (5) and the cover plate (2); A support plate (7) is slidably disposed inside the sedimentation tank (5), and a plurality of electric push rods (8) are fixedly disposed between the support plate (7) and the inner bottom wall of the sedimentation tank (5). Water outlet pipe (9), which is connected to the side wall of the pool body (1); A stirring mechanism is provided on the support plate (7) for stirring the makeup water and flocculant. A cleaning mechanism is provided inside the filter cartridge (6) for cleaning the filter cartridge (6); Telescopic tube (10) is inserted through and fixed between the support plate (7) and the inner bottom wall of the pool body (1).

2. The clarification tank for power plant boiler feedwater treatment according to claim 1, characterized in that, The stirring mechanism includes: A stirring column (11) is provided, which is rotatably mounted on the support plate (7). Stirring rod (12), and multiple stirring rods (12) are fixedly provided on the side wall of the stirring column (11); The first rotating mechanism is disposed in the support plate (7) and is used to drive the stirring column (11) to rotate.

3. The clarification tank for treating boiler feedwater in a power plant according to claim 2, characterized in that, The first rotating mechanism includes: The first cavity is formed inside the support plate (7), and the stirring column (11) passes through the first cavity; The first toothed ring is fixedly mounted on the stirring column (11); The first gear (13) is rotatably disposed in the first cavity and meshes with the first gear ring. The first motor (14) is fixedly mounted on the support plate (7), and the output end of the first motor (14) is fixedly connected to the first gear (13).

4. A clarification tank for treating boiler feedwater in a power plant according to claim 3, characterized in that, The cleaning facility includes: A cleaning ring (15) is disposed inside the filter cylinder (6). A fixing rod is fixed between the cleaning ring (15) and the side wall of the stirring column (11). Multiple cleaning grooves are provided on the side wall of the cleaning ring (15). A cleaning roller (16) is rotatably disposed in the cleaning tank. The sidewall of the cleaning roller (16) is evenly covered with cleaning bristles, which are in contact with the filter cylinder (6). The second rotating mechanism is disposed on the cleaning ring (15) and is used to drive the cleaning roller (16) to rotate.

5. A clarification tank for treating boiler feedwater in a power plant according to claim 4, characterized in that, The second rotating mechanism includes: The second cavity is provided inside the cleaning ring (15) on one side of the cleaning groove; The first bevel gear (17) is rotatably mounted on the inner top wall of the second cavity, and a connecting rod is fixedly provided between the first bevel gear (17) and the cleaning roller (16). The second bevel gear (18) is rotatably disposed on the side wall of the second cavity, and the second bevel gear (18) meshes with the first bevel gear (17); A synchronous rotation mechanism is provided on the stirring column (11) to drive multiple second bevel gears (18) to rotate synchronously.

6. A clarification tank for treating boiler feedwater in a power plant according to claim 5, characterized in that, The synchronous rotation mechanism includes: The third cavity is formed on the stirring column (11); A drive rod (19) is fixedly mounted on the second bevel gear (18). The end of the drive rod (19) away from the second bevel gear (18) extends into the third cavity. The drive rod (19) is rotatably connected to the side wall of the third cavity. The third bevel gear (20) is fixedly mounted on the drive rod (19); The fourth bevel gear (21) is rotatably mounted on the inner bottom wall of the third cavity, and the fourth bevel gear (21) meshes with the third bevel gear (20); A drive mechanism is provided on the stirring column (11) for driving the fourth bevel gear (21) to rotate.

7. A clarification tank for treating boiler feedwater in a power plant according to claim 6, characterized in that, The drive mechanism includes: The second motor (22) is fixedly mounted on the stirring column (11); The drive column is fixedly disposed between the output end of the second motor (22) and the fourth bevel gear (21).

8. A clarification tank for treating boiler feedwater in a power plant according to claim 7, characterized in that, A scraper (23) is fixedly provided on the side wall of the cleaning ring (15) away from the support plate (7), and the scraper (23) is in contact with the side wall of the filter cylinder (6).

9. A clarification tank for treating boiler feedwater in a power plant according to claim 8, characterized in that, The side wall of the pool body (1) is fixedly provided with support legs.

10. A clarification tank for treating boiler feedwater in a power plant according to claim 9, characterized in that, A reverse osmosis membrane (24) is fixedly installed between the sedimentation tank (5) and the side wall of the pool body (1).

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