Flue gas purification device for thermal power plant

Abstract

The utility model relates to the technical field of flue gas treatment, in particular to a thermal power plant flue gas purification device which comprises a box body, a filling frame is installed on the right side of the box body in a penetrating mode, a rotating limiting plate is fixedly installed on the right side of the box body through a rotating shaft, and an inner cavity of the filling frame is filled with filtering filling materials. A pretreatment box is fixedly installed at the bottom of the left side of the box body, a pretreatment mechanism is arranged in an inner cavity of the pretreatment box, a filter plate is transversely and fixedly connected to the top of the inner cavity of the box body, the top of the box body communicates with a smoke exhaust box, and a dehydrator is fixedly connected to an inner cavity of the smoke exhaust box. According to the flue gas treatment device, flue gas can be subjected to cooling pretreatment, during use, water liquid in the pretreatment box can cool the flue gas, meanwhile, certain dust particles can be removed, and meanwhile, after the flue gas is treated, a user controls the flue gas to be directly discharged or circularly treated by controlling the rotating valve plate.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas treatment, in particular to a flue gas purification device for a thermal power plant. Background Art

[0002] A thermal power plant, also known as a thermal power plant, is a factory that uses combustible materials as fuel to produce electricity. During the power generation process of a thermal power plant, a flue gas purification device is used to treat the emitted flue gas.

[0003] After searching, the patent number is CN220802548U, and the name is a utility model of a flue gas purification device for a thermal power plant, which includes a pipe body with an air inlet and an air outlet. Through research and analysis, it is found that when the device is in use, the smoke resistance is smaller and there is no angle to accumulate smoke. At the same time, spray liquid is sprayed into the spiral airway to absorb and remove particles in the smoke. However, the following disadvantages still exist to a certain extent.

[0004] For example, when the equipment is in use, it mostly directly processes the exhaust flue gas, and does not have the function of pre-cooling the exhaust flue gas. A large amount of heat will remain in such flue gas, which will easily affect the service life of the processing components after long-term use, and it does not have the function of circulating the flue gas during processing. In order to solve the above technical problems, we have designed a flue gas purification device for thermal power plants. Utility Model Content

[0005] The purpose of the utility model is to provide a flue gas purification device for a thermal power plant, which has the advantages of pre-treating and cooling the exhaust flue gas and circulating the flue gas, thereby solving the problem that the exhaust flue gas has no function of cooling the exhaust flue gas, a large amount of heat will remain in such flue gas, which is likely to affect the service life of the processing components, and the flue gas has no function of circulating the flue gas.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a flue gas purification device for a thermal power plant, comprising a box body, a filling frame is installed through the right side of the box body, a rotation limit plate is fixedly installed on the right side of the box body through a rotating shaft, the inner cavity of the filling frame is filled with filter filler, a pretreatment box is fixedly installed on the bottom of the left side of the box body, the inner cavity of the pretreatment box is provided with a pretreatment mechanism, a filter plate is fixedly connected to the top of the inner cavity of the box body laterally, the top of the box body is connected to a smoke exhaust box, the inner cavity of the smoke exhaust box is fixedly connected to a dehydrator, the top of the smoke exhaust box is connected to a smoke exhaust pipe, a sealed box door is movably installed on the front side of the box body through a hinge, and a controller is fixedly connected to the front side of the sealed box door.

[0007] Preferably, the pretreatment mechanism includes a water adding valve, which is installed through the top of the pretreatment box, a smoke conveying pipe is installed through the left side of the pretreatment box, a smoke guide pipe is connected to the right side of the top of the pretreatment box, an exhaust fan is fixedly connected to the inner cavity of the smoke guide pipe, a refrigerator is fixedly connected to the rear side of the pretreatment box, the output end of the refrigerator passes through the inner cavity of the pretreatment box and is fixedly connected to a temperature conduction rod, and the input ends of the exhaust fan and the refrigerator are electrically connected to the controller.

[0008] Preferably, a first motor is fixedly connected to the bottom of the box, and an output end of the first motor passes through the inner cavity of the box and is fixedly connected to a stirring rod.

[0009] Preferably, a smoke exhaust fan is fixedly installed transversely in the inner cavity of the smoke exhaust pipe, a second motor is fixedly connected to the left side of the smoke exhaust pipe, and an output end of the second motor passes through the inner cavity of the smoke exhaust pipe and is fixedly connected to a rotating valve plate.

[0010] Preferably, the left side of the pretreatment box is connected to a drain valve, and the right side of the box body is connected to a liquid injection valve and a liquid discharge valve respectively.

[0011] Preferably, a transparent observation plate is inlaid on the front of the pre-processing box, and an observation window is inlaid on the bottom of the front of the box.

[0012] Preferably, the rear side of the smoke exhaust pipe is connected to a circulation pipe, and the bottom end of the circulation pipe is connected to the box body.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] The utility model can perform cooling pretreatment on the smoke through the cooperation of the smoke exhaust box, the circulation pipe, the refrigerator, the smoke delivery pipe, the water adding valve, the smoke guide pipe, the drainage fan and the temperature conducting rod. When in use, the water in the pretreatment box can cool the smoke and also can remove certain dust particles. At the same time, after the smoke is treated, the user can control whether the smoke is directly discharged or circulated by controlling the rotating valve plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model is a three-dimensional cutaway view of the structure Figure 1 ;

[0016] Figure 2 The utility model is a three-dimensional cutaway view of the structure Figure 2 ;

[0017] Figure 3 This is a rear perspective view of the structure of the utility model;

[0018] Figure 4 This is a main perspective view of the structure of the utility model;

[0019] Figure 5 It is a sectional stereoscopic diagram of the local structural pretreatment mechanism of the utility model.

[0020] In the figure: 1. Box body; 2. Filling frame; 3. Rotating limit plate; 4. Filter filler; 5. Pretreatment box; 6. Pretreatment mechanism; 7. Smoke exhaust box; 8. Dehumidifier; 9. Rotating valve plate; 10. Smoke exhaust fan; 11. Circulation pipe; 12. Stirring rod; 13. First motor; 14. Second motor; 15. Refrigerator; 16. Sealed box door; 17. Controller; 18. Smoke conveying pipe; 19. Water adding valve; 20. Smoke guide pipe; 21. Drainage fan; 22. Temperature guide rod; 23. Smoke exhaust pipe; 24. Filter plate. DETAILED DESCRIPTION

[0021] See also Figure 1-Figure 5 A flue gas purification device for a thermal power plant comprises a box body 1, a filling frame 2 is installed through the right side of the box body 1, a rotation limit plate 3 is fixedly installed on the right side of the box body 1 through a rotating shaft, the inner cavity of the filling frame 2 is filled with a filter filler 4, a pretreatment box 5 is fixedly installed on the bottom of the left side of the box body 1, and a pretreatment mechanism 6 is arranged in the inner cavity of the pretreatment box 5, a filter plate 24 is fixedly connected to the top of the inner cavity of the box body 1 in a transverse direction, a smoke exhaust box 7 is connected to the top of the box body 1, a dehumidifier 8 is fixedly connected to the inner cavity of the smoke exhaust box 7, and a smoke exhaust pipe 23 is connected to the top of the smoke exhaust box 7, a sealed box door 16 is movably installed on the front side of the box body 1 through a hinge, and a controller 17 is fixedly connected to the front side of the sealed box door 16, and the filling frame 2 can be limited by setting the rotation limit plate 3 to prevent the filling frame 2 from falling off from the box body 1, and the water vapor in the flue gas can be removed by setting the dehumidifier 8.

[0022] See also Figure 1 , Figure 2 and Figure 5 The pretreatment mechanism 6 includes a water adding valve 19, which is installed through the top of the pretreatment box 5. A smoke delivery pipe 18 is installed through the left side of the pretreatment box 5. A smoke guide pipe 20 is connected to the right side of the top of the pretreatment box 5. The inner cavity of the smoke guide pipe 20 is fixedly connected with a drainage fan 21. The rear side of the pretreatment box 5 is fixedly connected with a refrigerator 15. The output end of the refrigerator 15 penetrates into the inner cavity of the pretreatment box 5 and is fixedly connected with a temperature conducting rod 22. The drainage fan 21 and the input end of the refrigerator 15 are both electrically connected to the controller 17. The top end of the smoke guide pipe 20 penetrates into the inner cavity of the box body 1. Through the cooperation of the refrigerator 15 and the temperature conducting rod 22, the water can be cooled to prevent the temperature of the water from being too high.

[0023] See also Figure 1 and Figure 2A first motor 13 is fixedly connected to the bottom of the box 1, and an output end of the first motor 13 passes through the inner cavity of the box 1 and is fixedly connected to a stirring rod 12. Through the cooperation of the first motor 13 and the stirring rod 12, the solution in the box 1 can be stirred to prevent the solution from precipitating.

[0024] See also Figure 1 and Figure 2 A smoke exhaust fan 10 is fixedly installed in the inner cavity of the smoke exhaust pipe 23 horizontally, and a second motor 14 is fixedly connected to the left side of the smoke exhaust pipe 23. The output end of the second motor 14 passes through the inner cavity of the smoke exhaust pipe 23 and is fixedly connected to a rotating valve plate 9.

[0025] See also Figure 1 and Figure 4 The left side of the pretreatment box 5 is connected to a drain valve, and the right side of the box body 1 is connected to a liquid injection valve and a liquid discharge valve.

[0026] See also Figure 4 A transparent observation plate is embedded in the front of the pretreatment box 5, and an observation window is embedded in the bottom of the front of the box body 1. By setting the transparent observation plate, it is convenient for the user to check the inside of the pretreatment box 5, and by setting the observation window, it is convenient to observe the solution in the box body 1.

[0027] See also Figure 1 and Figure 3 The rear side of the smoke exhaust pipe 23 is connected to the circulation pipe 11, the bottom end of the circulation pipe 11 is connected to the box body 1, and the inner cavity of the pretreatment box 5 is laterally fixedly connected with a partition plate. By setting the partition plate, the smoke can be separated and the smoke can also enter the smoke guide pipe 20.

[0028] During use, the user first injects a certain amount of water into the pretreatment box 5 through the water filling valve 19, and then injects a solution such as lime water into the box body 1 through the injection valve. After completion, the user fills the corresponding filter filler 4 into the filling frame 2 according to the combustion conditions of the flue gas, so that the filter filler 4 can effectively filter and treat the harmful substances in the flue gas. Then the user guides the flue gas discharged from the thermal power plant into the pretreatment box 5 through the smoke conveying pipe 18. When the flue gas enters the pretreatment box 5, the water in the pretreatment box 5 will cool the flue gas. At the same time, the water can also remove some impurities in the flue gas, so as to pretreat the flue gas. When the user starts the drainage fan 21, the remaining flue gas can be The smoke can enter the housing 1 through the smoke guide pipe 20, so that the lime water can treat the smoke. After the treatment, the remaining smoke will float upward into the filter filler 4, so that the filter filler 4 can filter the harmful substances in the smoke. After filtering the smoke, the filter plate 24 will adsorb the residue of the smoke to prevent any particles from remaining. After the treatment, the user starts the smoke exhaust fan 10 to allow the smoke to enter the smoke exhaust pipe 23. When discharging the smoke, the user can control the second motor 14 to control the rotating valve plate 9 to open or close. When closed, the smoke will re-enter the housing 1 through the circulation pipe 11, so that it can circulate the smoke. When opened, the smoke will be directly discharged through the smoke exhaust pipe 23.

[0029] To sum up: the flue gas purification device of the thermal power plant, through the cooperation of the box body 1, the filling frame 2, the rotating limit plate 3, the filter filler 4, the pretreatment box 5, the pretreatment mechanism 6, the smoke exhaust box 7, the water remover 8, the rotating valve plate 9 and the smoke exhaust fan 10, solves the problem of not having the function of cooling the discharged flue gas, a large amount of heat will remain in such flue gas, which is easy to affect the service life of the processing components, and also does not have the function of circulating the flue gas.

Claims

1. A flue gas purification device for a thermal power plant, comprising a housing (1), characterized in that: A filling frame (2) is installed through the right side of the box body (1), a rotation limit plate (3) is fixedly installed on the right side of the box body (1) through a rotating shaft, the inner cavity of the filling frame (2) is filled with filter filler (4), a pretreatment box (5) is fixedly installed at the bottom of the left side of the box body (1), the inner cavity of the pretreatment box (5) is provided with a pretreatment mechanism (6), the top of the inner cavity of the box body (1) is transversely fixedly connected with a filter plate (24), the top of the box body (1) is connected to a smoke exhaust box (7), the inner cavity of the smoke exhaust box (7) is fixedly connected to a dehumidifier (8), the top of the smoke exhaust box (7) is connected to a smoke exhaust pipe (23), and a sealed box door (16) is movably installed on the front of the box body (1) through a hinge, and the front of the sealed box door (16) is fixedly connected to a controller (17).

2. A flue gas purification device for a thermal power plant according to claim 1, characterized in that: The pretreatment mechanism (6) comprises a water adding valve (19), the water adding valve (19) is installed through the top of the pretreatment box (5), a smoke conveying pipe (18) is installed through the left side of the pretreatment box (5), a smoke guiding pipe (20) is connected to the right side of the top of the pretreatment box (5), the inner cavity of the smoke guiding pipe (20) is fixedly connected to a drainage fan (21), the rear side of the pretreatment box (5) is fixedly connected to a refrigerator (15), the output end of the refrigerator (15) passes through the inner cavity of the pretreatment box (5) and is fixedly connected to a temperature conducting rod (22), and the input ends of the drainage fan (21) and the refrigerator (15) are both electrically connected to a controller (17).

3. A flue gas purification device for a thermal power plant according to claim 1, characterized in that: A first motor (13) is fixedly connected to the bottom of the box (1); an output end of the first motor (13) passes through the inner cavity of the box (1) and is fixedly connected to a stirring rod (12).

4. A flue gas purification device for a thermal power plant according to claim 1, characterized in that: A smoke exhaust fan (10) is fixedly installed in the inner cavity of the smoke exhaust pipe (23) in a transverse manner, a second motor (14) is fixedly connected to the left side of the smoke exhaust pipe (23), and an output end of the second motor (14) passes through the inner cavity of the smoke exhaust pipe (23) and is fixedly connected to a rotating valve plate (9).

5. The flue gas purification device for a thermal power plant according to claim 1, characterized in that: The left side of the pretreatment box (5) is connected to a drainage valve, and the right side of the box body (1) is respectively connected to a liquid injection valve and a liquid drainage valve.

6. A flue gas purification device for a thermal power plant according to claim 1, characterized in that: A transparent observation plate is inlaid on the front of the pretreatment box (5), and an observation window is inlaid on the bottom of the front of the box body (1).

7. A flue gas purification device for a thermal power plant according to claim 1, characterized in that: The rear side of the smoke exhaust pipe (23) is connected to a circulation pipe (11), and the bottom end of the circulation pipe (11) is connected to the box body (1).

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