Absorption tower of thermal power plant

Abstract

The invention relates to the technical field of absorption towers, in particular to an absorption tower of a thermal power plant. The conveying part is used for conveying the medium; the spraying part is rotationally arranged in the tower body; the dispersing mechanism comprises a connecting piece and a turbulent flow piece which are arranged in the tower body; the spoiler is movably connected with the tower body through a connecting piece; the conveying part conveys a medium into the spraying part and sprays the medium onto the turbulent flow part to enable the turbulent flow part to move, and due to the fact that the turbulent flow part is in a movable state after being impacted, after the turbulent flow part moves, the counter-acting force borne by the spraying part can be continuously changed, and the spraying angle of the spraying part can also be changed, and therefore the spraying part and the turbulent flow part are matched with each other. According to the waste gas treatment device, particles adhered to the spoiler can be conveniently washed off or shaken off, channel area reduction caused by blockage of the spoiler is avoided, particle accumulation can be prevented, and meanwhile, the waste gas treatment effect can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of absorption towers, and in particular to an absorption tower for a thermal power plant. Background Art

[0002] In the prior art, in order to meet environmental protection requirements, a thermal power plant needs to desulfurize the exhaust gas it emits to reduce the emission concentration of sulfur dioxide. The absorption tower is one of the important devices to achieve this goal. During the desulfurization process, the absorbent (such as limestone slurry, etc.) in the absorption tower reacts chemically with sulfur dioxide in the exhaust gas to generate harmless or low-toxic compounds, thereby achieving the purpose of desulfurization.

[0003] Since the discharged exhaust gas contains not only polluting gases but also a large number of harmful particles, although the absorbent can also treat some particles when treating the gas, due to the adhesiveness of the particles, after long-term use, the accumulation of particles is likely to affect the gas permeability and the exhaust gas treatment efficiency. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is that: the accumulation of particles is likely to affect the gas permeability and the exhaust gas treatment efficiency.

[0005] The above technical problem is solved by the following technical solution: The present invention provides an absorption tower for a thermal power plant, including a tower body provided with an air inlet passage; a conveying member for conveying a medium; a spraying member rotatably arranged in the tower body; a dispersion mechanism including a connecting member and a flow disturbing member arranged in the tower body; the flow disturbing member is movably connected to the tower body through the connecting member; the conveying member conveys the medium into the spraying member and sprays it onto the flow disturbing member to make the flow disturbing member move.

[0006] In a preferred embodiment of the absorption tower for a thermal power plant of the present invention: the spraying member is provided with spray heads; the flow disturbing member is provided with a first flow disturbing surface, and the flow disturbing member is provided with a conveying channel; the included angle between the spraying direction of the spray head and the first flow disturbing surface is not 90 degrees.

[0007] In a preferred embodiment of the absorption tower for a thermal power plant of the present invention: the conveying channel is arranged deviating from the spray head.

[0008] In a preferred embodiment of the absorption tower for a thermal power plant of the present invention: the connecting member is provided with a spring, and the connecting member is connected to the flow disturbing member through the spring.

[0009] In a preferred embodiment of the absorption tower for a thermal power plant of the present invention: the flow disturbing member is provided with a second flow disturbing surface; the first flow disturbing surface and the second flow disturbing surface are arranged at intervals.

[0010] In a preferred embodiment of the absorption tower of the thermal power plant according to the present invention: A plurality of spray heads are provided, and a plurality of uniformly distributed connecting pipes are provided on the spraying member, and the spray heads are uniformly arranged on the connecting pipes.

[0011] In a preferred embodiment of the absorption tower of the thermal power plant according to the present invention: The spraying member and the dispersion mechanism are spirally distributed in the tower body from bottom to top in a plurality.

[0012] In a preferred embodiment of the absorption tower of the thermal power plant according to the present invention: The spoiler is provided with a contact surface; Two symmetrically arranged spoilers are provided below each spraying member.

[0013] In a preferred embodiment of the absorption tower of the thermal power plant according to the present invention: An air inlet and a liquid inlet are provided on the tower body; An air conveying member is provided on the tower body, and a docking pipe is provided on the air conveying member; A conveying pipe is provided on the conveying member, and one end of the conveying pipe is connected to the spraying member.

[0014] In a preferred embodiment of the absorption tower of the thermal power plant according to the present invention: A plurality of air inlets are provided, and the plurality of air inlets are inclinedly distributed on the outer wall of the tower body; The connecting member is provided with a guiding surface.

[0015] The beneficial effect of the present invention is that: Since the spoiler is in a movable state after being impacted, after the spoiler moves, the reaction force received by the spraying member will also change continuously, so that the spraying angle of the spraying member will also change. Therefore, the two cooperate with each other, which can facilitate the flushing or shaking off of the particulate matter adhered to the spoiler, avoid the reduction of the channel area caused by the blockage of the spoiler, prevent the accumulation of particles, and at the same time improve the treatment effect of the waste gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] [[ID=2C]]To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings of the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below only relate to some embodiments of the present invention and do not limit the present invention.

[0017] Figure 1 Shows the overall structural schematic diagram of the absorption tower of the thermal power plant.

[0018] Figure 2 Shows the connection structural schematic diagram of the tower body and the air inlet of the absorption tower of the thermal power plant.

[0019] Figure 3 Shows the structural schematic diagram of the dispersion mechanism of the absorption tower of the thermal power plant.

[0020] Figure 4 Shows the internal structural schematic diagram of the absorption tower of the thermal power plant.

[0021] Figure 5 The structural schematic diagram of the spoiler of the absorption tower of a thermal power plant is shown.

[0022] In the figure:

[0023] 1. Tower body; 11. Air inlet; 12. Liquid infusion port;

[0024] 2. Conveyor; 21. Conveyor pipe;

[0025] 3. Spraying member; 31. Spraying head; 32. Connecting pipe;

[0026] 4. Dispersion mechanism; 41. Connecting member; 411. Spring; 412. Flow guiding surface; 42. Spoiler; 421. First spoiler surface; 422. Second spoiler surface; 423. Conveying channel; 424. Contact surface;

[0027] 5. Gas conveying member; 51. Docking pipe. Specific embodiments

[0028] In order to enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below in conjunction with specific embodiments and the accompanying drawings.

[0029] The terms used in the present invention are those general terms that are currently widely used in the art in consideration of the functions of the present invention, but these terms may change according to the intentions of those of ordinary skill in the art, precedents, or new technologies in the art. In addition, specific terms may be selected by the applicant, and in this case, their detailed meanings will be described in the detailed description of the present invention. Therefore, the terms used in the specification should not be understood as simple names, but based on the meanings of the terms and the overall description of the present invention.

[0030] Referring to Figures 1 to 5 , this embodiment provides an absorption tower of a thermal power plant, including,

[0031] Tower body 1, which is provided with an air inlet channel;

[0032] Conveyor 2, which is used to convey the medium;

[0033] Spraying member 3, which is rotatably arranged in tower body 1;

[0034] Dispersion mechanism 4, which includes a connecting member 41 and a spoiler 42 arranged in tower body 1;

[0035] The spoiler 42 is movably connected to the tower body 1 through the connecting member 41;

[0036] The conveyor 2 conveys the medium into the spraying member 3 and sprays it onto the spoiler 42, causing the spoiler 42 to move, and the reaction force of the spraying of the spraying member 3 causes the spraying member 3 to rotate.

[0037] An air inlet 11 and a liquid inlet 12 are provided on the tower body 1;

[0038] In this embodiment, the air inlet passage is the air inlet 11, the input port of the conveying member 2 is connected to the liquid inlet 12, and the conveying member 2 is a conveying pump.

[0039] An air conveying member 5 is provided on the tower body 1, and a docking pipe 51 is provided on the air conveying member 5; the docking pipe 51 is connected to the waste gas conveying pipeline, and the waste gas is input into the air conveying member 5 through the docking pipe 51. The air conveying member 5 is a flow deflector that guides the gas into the interior of the tower body 1.

[0040] A conveying pipe 21 is provided on the conveying member 2. One end of the conveying pipe 21 is connected to the spraying member 3, and the conveying pipe 21 and the spraying member 3 are connected by a rotary connection structure.

[0041] During use, the limestone slurry is stored at the bottom of the tower body 1. The slurry is pumped by the conveying member 2, and the slurry is conveyed through the conveying pipe 21 to the spraying member 3 and sprayed out through the spraying member 3. The liquid sprayed out by the spraying member 3 will act on the flow disturbing member 42. The waste gas enters the interior of the tower body 1 through the docking pipe 51 and the air inlet 11. The waste gas moves from bottom to top in the tower. When passing through the flow disturbing member 42, the flow position of the gas will be changed, making the gas distribution more uniform. Since the liquid sprayed out by the spraying member 3 acts on the flow disturbing member 42, the flow disturbing member 42 will generate a reaction force, causing the spraying member 3 to deflect and move, which can change the spraying angle. Moreover, the flow disturbing member 42 is movable. After being impacted by the liquid, the flow disturbing member 42 will move, further changing the movement of the fluid and promoting the mixing of the waste gas and the slurry. It should be noted that the flow disturbance of the flow disturbing member 42 here is not only for the waste gas but also for the slurry, so that the two can be fully mixed and contacted. Moreover, while improving the mixing effect, since the flow disturbing member 42 is in a movable state after being impacted, the reaction force received by the spraying member 3 will also change continuously, causing the spraying angle of the spraying member 3 to change. Therefore, the two cooperate with each other, which can facilitate the flushing or shaking off of the particulate matter adhering to the flow disturbing member 42, avoid the reduction of the channel area caused by the blockage of the flow disturbing member 42, prevent the accumulation of particles, and at the same time improve the treatment effect of the waste gas.

[0042] Preferably, a plurality of air inlets 11 are provided, and the plurality of air inlets 11 are inclinedly distributed on the outer wall of the tower body 1; by arranging the air inlets 11 in an inclined manner, the gas entering the interior of the tower body 1 after the waste gas enters can enter different parts, facilitating dispersion.

[0043] A flow guiding surface 412 is provided on the connecting member 41, and the setting of the flow guiding surface 412 facilitates guiding the surrounding liquid to slide off.

[0044] Reference Figures 3 to 5 Figures 3 to 5 , as an alternative embodiment: a spray head 31 is provided on the spraying member 3; the spray head 31 is used for spraying the slurry.

[0045] A first spoiler surface 421 is provided on the spoiler member 42, and a conveying channel 423 is provided on the spoiler member 42; in this embodiment, the included angle between the spraying direction of the spray head 31 and the first spoiler surface 421 is not ninety degrees.

[0046] Since the included angle between the spraying direction of the spray head 31 and the first spoiler surface 421 is not perpendicular, when the spray head 31 sprays the slurry, an inclined thrust will be generated, causing the spoiler member 42 to have a tendency to move.

[0047] The conveying channel 423 is arranged deviating from the spray head 31. Since the spray head 31 is not directly aligned with the conveying channel 423, when the spray head 31 sprays the surface of the spoiler member 42, a thrust can be generated and act on the spoiler member 42.

[0048] Reference Figure 5 Figure 5 , as an alternative embodiment: a spring 411 is provided on the connecting member 41, and the connecting member 41 is connected to the spoiler member 42 through the spring 411. The setting of the spring 411 can not only connect the spoiler member 42, but also enable the spoiler member 42 to move in any direction and have the ability to reset after movement.

[0049] A second spoiler surface 422 is provided on the spoiler member 42; the first spoiler surface 421 and the second spoiler surface 422 are arranged at intervals.

[0050] Reference Figure 5 Figure 5 , the spoiler member 42 is composed of a plurality of sequentially arranged first spoiler surfaces 421 and second spoiler surfaces 422, and the conveying channel 423 is located between the first spoiler surface 421 and the second spoiler surface 422, forming a circular disc structure.

[0051] Reference Figure 3 and Figure 4 Figure 4 , several spray heads 31 are provided, several uniformly distributed connecting pipes 32 are provided on the spraying member 3, and the spray heads 31 are uniformly arranged on the connecting pipes 32.

[0052] Through the setting of the uniformly distributed spray heads 31, uniform spraying operations can be achieved.

[0053] As an alternative embodiment: a plurality of spraying members 3 and dispersion mechanisms 4 are spirally distributed from bottom to top inside the tower body 1. Through the spiral distribution method, the spraying points of each spray head 31 can be different, and the positions where the gas rises and wants to pass through the conveying channel 423 are also different.

[0054] The spoiler 42 is provided with a contact surface 424; the contact surface 424 is inclined.

[0055] Two symmetrically arranged spoilers 42 are provided below each spraying member 3.

[0056] During use, during the upward movement of the waste gas, its position will continuously change with the change of the position of the conveying channel 423. The first spoiler surface 421 and the second spoiler surface 422 can guide the slurry sprayed by the spray head 31 so that it flows downward centrally from the conveying channel 423. The guiding surface 412 guides the surrounding slurry to make it fall, facilitating the treatment of the waste gas rising from the periphery of the spoiler 42.

[0057] After the slurry contacts the waste gas, it will be able to absorb some harmful substances in the waste gas and at the same time carry away the particulate matter in the waste gas, and finally fall back to the bottom of the tower body 1. The recycled slurry can be circulated and sprayed through the liquid inlet 12.

[0058] It should be noted that with reference to Figure 5 , during the spraying process of the spray head 31, the sprayed slurry will push the first spoiler surface 421, causing the two symmetrically arranged spoilers 42 to approach each other. The contact surfaces 424 on the two symmetrically arranged spoilers 42 are in opposite states. Therefore, when the contact surfaces 424 on the two symmetrically arranged spoilers 42 come into contact with each other, a height deviation will occur between the two symmetrically arranged spoilers 42. At this time, since the distances between the spray heads 31 on both sides and each spoiler 42 are different, the reaction forces received will change, which can cause the spraying member 3 to rotate slightly. As the two spoilers 42 approach, finally the slurry sprayed by the spray head 31 is aligned beside the conveying channel 423. At this time, the spraying of the spray head 31 can be stopped. Under the action of the spring 411, the spoiler 42 shakes and resets. Subsequently, the spray head 31 sprays again. Through intermittent spraying, it is possible to save slurry while also causing the spoiler 42 to shake continuously. The shaking of the spoiler 42 can change the internal gas flow and the slurry flow on the spoiler 42, achieving a better waste gas treatment effect, and can also shake off the particles on the spoiler 42. Combined with the flushing of the spray head 31, it can also achieve the flushing of the particles on the spoiler 42.

[0059] Finally, it should be pointed out that the methods and devices described in detail above are only examples, and those skilled in the art can modify these examples in different ways as long as they do not depart from the scope of the present invention.

Claims

1. An absorption tower of a thermal power plant, characterized in that: including, a tower body (1) provided with an air inlet channel thereon; a conveying member (2) for conveying a medium; a spraying member (3) rotatably arranged in the tower body (1); a dispersion mechanism (4) including a connecting member (41) and a flow disturbing member (42) arranged in the tower body (1); the flow disturbing member (42) is movably connected to the tower body (1) through the connecting member (41); the conveying member (2) conveys the medium into the spraying member (3) and sprays it onto the flow disturbing member (42) to make the flow disturbing member (42) move.

2. The absorption tower of a thermal power plant according to claim 1, wherein: the spraying member (3) is provided with spraying nozzles (31); the flow disturbing member (42) is provided with a first flow disturbing surface (421), and the flow disturbing member (42) is provided with a conveying channel (423); the included angle between the spraying direction of the spraying nozzle (31) and the first flow disturbing surface (421) is not 90 degrees.

3. The absorption tower of a thermal power plant according to claim 2, wherein: the conveying channel (423) is arranged deviating from the spraying nozzle (31).

4. The absorber of a thermal power plant according to claim 3, characterized in that: the connecting member (41) is provided with a spring (411), and the connecting member (41) is connected to the flow disturbing member (42) through the spring (411).

5. The absorber tower of a thermal power plant according to claim 4, characterized in that: the flow disturbing member (42) is provided with a second flow disturbing surface (422); the first flow disturbing surface (421) and the second flow disturbing surface (422) are arranged in a spaced manner.

6. The absorption tower of a thermal power plant according to any one of claims 2 to 5, characterized in that: a plurality of the spraying nozzles (31) are provided, the spraying member (3) is provided with a plurality of uniformly distributed connecting pipes (32), and the spraying nozzles (31) are uniformly arranged on the connecting pipes (32).

7. The absorption tower of a thermal power plant according to claim 6, characterized in that: a plurality of the spraying member (3) and the dispersion mechanism (4) are spirally distributed from bottom to top inside the tower body (1).

8. The absorber of a thermal power plant according to claim 7, wherein: the flow disturbing member (42) is provided with a contact surface (424); two symmetrically arranged flow disturbing members (42) are provided below each spraying member (3).

9. The absorber of the thermal power plant according to claim 8, characterized in that: the tower body (1) is provided with an air inlet (11) and a liquid inlet (12); the tower body (1) is provided with a gas conveying member (5), and the gas conveying member (5) is provided with a docking pipe (51); the conveying member (2) is provided with a conveying pipe (21), and one end of the conveying pipe (21) is connected to the spraying member (3).

10. The absorber of the thermal power plant according to claim 9, characterized in that: a plurality of the air inlets (11) are provided, and the plurality of air inlets (11) are obliquely distributed on the outer wall of the tower body (1); the connecting member (41) is provided with a guiding surface (412).

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