Smoke uniformizing device for desulfurization and denitrification of thermal power plant

Abstract

The utility model discloses a smoke uniformizing device for desulfurization and denitrification of a thermal power plant, which is mounted in a desulfurization and denitrification tower and comprises a fixed cylinder, a first air inlet pipe, an air distribution plate, an air inlet hose, a rotating mechanism and a turbulent flow mechanism, a fixed disc is hermetically arranged at the bottom end of the fixed cylinder, and the fixed cylinder is fixedly arranged in the desulfurization and denitrification tower; the top end of the first air inlet pipe is sealed, a plurality of second air inlet pipes are arranged on the side wall of the first air inlet pipe, a plurality of air inlets are formed in the bottom side walls of the second air inlet pipes, a plurality of air distribution plates are fixedly arranged at the position, located on one side of the first air inlet pipe, in the fixed cylinder, and air distribution holes are evenly distributed in the air distribution plates; the gas inlet hose is arranged on the side wall of the desulfurization and denitrification tower in a penetrating mode, one end of the gas inlet hose penetrates through the fixing disc and extends into the first gas inlet pipe, and the smoke homogenizing device for desulfurization and denitrification of the thermal power plant solves the problem that in the prior art, the smoke homogenizing effect is affected due to the fact that smoke dust easily blocks the perforated plate.

Description

TECHNICAL FIELD

[0001] The utility model relates to a smoke equalizing device for desulfurization and denitrification of a thermal power plant. BACKGROUND

[0002] Thermal power plants are an indispensable part of the development of the present society, and mainly rely on thermal power generation. Heat energy is generated by burning fuel, and then the heat energy is converted into electric energy. In the process of burning fuel, a large amount of flue gas is generated, and the flue gas contains harmful chemical substances such as sulfur and nitrogen. In the process of discharging flue gas, a desulfurization and denitrification tower is needed to remove the harmful chemical substances in the flue gas.

[0003] The smoke equalizing device is a device for introducing flue gas into the desulfurization and denitrification tower. In the prior art, a multi-hole plate structure is mostly used to achieve smoke equalization. The principle is to set a multi-hole plate with small holes in the flue gas duct to achieve uniform flow of flue gas when it passes through the small holes. However, this technology has poor adaptability to changes in flue gas flow. Once the load of the thermal power plant increases and the flue gas flow increases significantly, the small holes of the multi-hole plate are easily blocked by dust and other impurities. After the blockage, the flow rate of the flue gas in some areas increases dramatically, while the flow rate in other areas is slow. The desulfurization and denitrification agent cannot be uniformly mixed with the flue gas, resulting in insufficient reaction and significantly reduced desulfurization and denitrification efficiency, which is difficult to meet the increasingly stringent environmental emission standards. CONTENT OF THE UTILITY MODEL

[0004] (I) Technical problem solved

[0005] In view of the shortcomings of the prior art, the utility model provides a smoke equalizing device for desulfurization and denitrification of a thermal power plant to solve the problem of easy blockage of the multi-hole plate by smoke dust in the prior art, which affects the smoke equalization effect.

[0006] (II) Technical solution

[0007] In order to achieve the above object, the utility model provides the following technical scheme: A kind of uniform smoke device for thermal power plant desulfurization and denitrification is installed in desulfurization and denitrification tower, including fixed cylinder, the bottom end of the fixed cylinder is sealingly provided with fixed disc, the fixed cylinder is fixedly arranged in the desulfurization and denitrification tower, further including first air inlet pipe, air distribution plate, air inlet hose, rotating mechanism and turbulence mechanism, the first air inlet pipe is rotationally and sealingly arranged on the fixed disc, the top end of the first air inlet pipe is sealing, a plurality of second air inlet pipes are formed in the side wall of the first air inlet pipe, a plurality of air inlets are formed in the bottom side wall of the second air inlet pipe, a plurality of the air distribution plates are fixedly arranged on the side of the fixed cylinder located the first air inlet pipe side, air distribution holes are uniformly distributed on the air distribution plate, the air inlet hose is penetratingly arranged on the side wall of the desulfurization and denitrification tower, one end of the air inlet hose penetrates the fixed disc and extends into the first air inlet pipe, the rotating mechanism for driving the first air inlet pipe to rotate is arranged on the fixed disc, the turbulence mechanism for guiding flue gas flow is arranged on the side of the fixed cylinder located the air distribution plate side.

[0008] Preferably, the number of air distribution holes on the air distribution plate increases in sequence along the direction away from the first air inlet pipe.

[0009] Further, the rotating mechanism comprises:

[0010] Fixed cover, the fixed cover is fixedly arranged on the fixed disc, and the first air inlet pipe penetrates the fixed cover and is rotationally connected with the fixed cover.

[0011] First tooth ring, the first tooth ring is fixedly arranged on the side wall of the first air inlet pipe.

[0012] First gear, the first gear is rotationally arranged on the fixed disc, and the first gear is engaged with the first tooth ring.

[0013] First motor, the first motor is installed on the fixed disc, and the output end of the first motor is fixedly connected with the first gear.

[0014] Further, the turbulence mechanism comprises:

[0015] Support column, the support column is fixedly arranged on the first air inlet pipe, and one end of the support column away from the first air inlet pipe penetrates a plurality of air distribution plates and is rotationally connected with the air distribution plate.

[0016] First cavity, the first cavity is formed in the support column on the side of the air distribution plate.

[0017] Turbulence column, a plurality of turbulence columns are rotationally arranged on the side of the first cavity in the side wall of the support column.

[0018] The turbulence column is provided with a plurality of turbulence plates on the side, a plurality of fixing rods are fixed between the turbulence plates and the turbulence column, and cleaning bristles are uniformly distributed on the side wall of the turbulence plate away from the turbulence column and are pressed on the air distribution plate.

[0019] A driving mechanism is arranged in the support column and used for driving the turbulence column to rotate.

[0020] Further, the driving mechanism comprises:

[0021] A first bevel gear is arranged in the first cavity and fixed on the end of the turbulence column close to the support column.

[0022] A second bevel gear is arranged on the inner bottom wall of the first cavity and engaged with the first bevel gear.

[0023] A fixing column is fixed on the fixing disc and penetrates through the first air inlet pipe and the support column at the end away from the fixing disc, and the fixing column is fixedly connected with the second bevel gear.

[0024] On the basis of the above scheme, the first motor is provided with a protective cover fixedly connected with the fixing disc.

[0025] (Three) beneficial effects

[0026] Compared with the prior art, the utility model provides a smoke uniformizing device for desulfurization and denitrification of a thermal power plant, which has the following beneficial effects:

[0027] 1. In the utility model, the first air inlet pipe and the support column are driven to rotate through the working of the rotating mechanism, so that the turbulence column and the turbulence plate move around the support column, the smoke is agitated by the turbulence plate, the smoke uniformly passes through the air distribution hole, the smoke uniformizing effect is improved, the smoke dust in the air distribution hole is cleaned by the cleaning bristles driven by the movement of the turbulence plate, and the air distribution hole is prevented from being blocked by the smoke dust.

[0028] 2. In the utility model, the rotation of the support column drives the first bevel gear to move around the second bevel gear through the driving mechanism, the first bevel gear and the second bevel gear are engaged, the first bevel gear and the turbulence column are driven to rotate, the turbulence plate moves around the turbulence column, and the agitation effect of the smoke and the cleaning effect of the air distribution plate are improved.

[0029] 3. The utility model discloses, through the setting of rotating mechanism, the work of first motor can drive first gear to rotate, simultaneously through the meshing of first gear and first tooth ring drive first air inlet pipe to rotate, and then the position of air inlet is adjusted, to be convenient for to the fixed cylinder even in the tobacco of going in,

[0030] 4. The utility model discloses, through the setting of first air inlet pipe, air distribution plate, air inlet hose, rotating mechanism and turbulence mechanism, be convenient for through the cleaning of turbulence plate's movement drive cleaning brush hair to air distribution hole, to solve the problem of the prior art in smoke dust easy to block the porous plate and influence even tobacco effect. DRAWINGS

[0031] Figure 1 It is fixed cylinder's structural diagram of the application;

[0032] Figure 2 It is fixed cylinder's structural diagram of the application;

[0033] Figure 3 It is fixed cylinder's structural diagram of the application;

[0034] Figure 4 It is fixed cylinder's structural diagram of the application.

[0035] In the drawing: 1, desulfurization and denitration tower;2, fixed cylinder;3, fixed disc;4, first air inlet pipe;5, second air inlet pipe;6, air inlet;7, air distribution plate;8, air distribution hole;9, air inlet hose;10, fixed cover;11, first tooth ring;12, first gear;13, first motor;14, support column;15, turbulence column;16, turbulence plate;17, first bevel gear;18, second bevel gear;19, fixed column. DETAILED DESCRIPTION

[0036] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor belong to the scope of protection of the utility model.

[0037] Please refer to Figures 1-4The utility model relates to a uniform smoke device for desulfurization and denitrification of thermal power plant, install in the desulfurization and denitrification tower 1, including fixed cylinder 2, the bottom end sealing of fixed cylinder 2 is provided with fixed disc 3, and fixed cylinder 2 is fixedly arranged in the desulfurization and denitrification tower 1, still including first air inlet pipe 4, air distribution plate 7, air inlet hose 9, rotating mechanism and turbulence mechanism, and first air inlet pipe 4 is rotatably and sealingly arranged on fixed disc 3, and the top end of first air inlet pipe 4 is sealing, a plurality of second air inlet pipes 5 are formed in the side wall of first air inlet pipe 4, a plurality of air inlets 6 are formed in the bottom side wall of second air inlet pipe 5, a plurality of air distribution plates 7 are fixedly arranged on one side of fixed cylinder 2, air distribution holes 8 are uniformly distributed on air distribution plate 7, air inlet hose 9 is throughly arranged on the side wall of desulfurization and denitrification tower 1, one end of air inlet hose 9 is throughly fixed in first air inlet pipe 4, and rotating mechanism for driving first air inlet pipe 4 to rotate is arranged on fixed disc 3, and turbulence mechanism for guiding the flow of flue gas is arranged on one side of fixed cylinder 2, the number of air distribution holes 8 on a plurality of air distribution plates 7 increases in turn along the direction away from first air inlet pipe 4, specifically, the operator can pass flue gas into first air inlet pipe 4 through air inlet hose 9, then pass flue gas into fixed cylinder 2 through the air inlet of second air inlet pipe 5, and flue gas realizes uniform flow through the air distribution holes 8 on a plurality of air distribution plates 7.

[0038] Referring to Figures 2-4 , rotating mechanism includes fixed cover 10, first tooth ring 11, first gear 12 and first motor 13, fixed cover 10 is fixedly arranged on fixed disc 3, first air inlet pipe 4 is through fixed cover 10 and is rotatably connected with fixed cover 10, first tooth ring 11 is fixedly arranged on the side wall of first air inlet pipe 4, first gear 12 is rotatably arranged on fixed disc 3, first gear 12 is engaged with first tooth ring 11, first motor 13 is installed on fixed disc 3, the output end of first motor 13 is fixedly connected with first gear 12, the surface of first motor 13 is provided with protective cover, and the protective cover is fixedly connected with fixed disc 3, specifically, the working of first motor 13 can drive first gear 12 to rotate, simultaneously drives first air inlet pipe 4 to rotate through the engagement of first gear 12 and first tooth ring 11, and then the position of air inlet 6 is adjusted, so that uniform smoke into fixed cylinder 2 is facilitated, and then the uniform smoke effect is improved.

[0039] Referring to Figures 2-4The turbulence mechanism comprises a support column 14, a first cavity, a turbulence column 15, a turbulence plate 16 and a driving mechanism. The support column 14 is fixedly arranged on the first air inlet pipe 4. The end of the support column 14 away from the first air inlet pipe 4 penetrates through the air distribution plate 7 and is rotationally connected with the air distribution plate 7. The first cavity is arranged in the support column 14 at one side of the air distribution plate 7. A plurality of turbulence columns 15 are rotationally arranged on the side wall of the support column 14 at the periphery of the first cavity. A plurality of turbulence plates 16 are arranged on the periphery of the turbulence column 15. A plurality of fixing rods are fixedly arranged between the turbulence plate 16 and the turbulence column 15. The side wall of the turbulence plate 16 away from the turbulence column 15 is uniformly provided with cleaning bristles. The cleaning bristles are pressed on the air distribution plate 7. The driving mechanism is arranged in the support column 14 and is used for driving the turbulence column 15 to rotate. Specifically, the rotation of the first air inlet pipe 4 can drive the support column 14 to rotate, so that the turbulence column 15 and the turbulence plate 16 move around the support column 14, so that the flue gas is stirred by the turbulence plate 16, so that the flue gas uniformly passes through the air distribution hole 8, thereby improving the uniform smoke effect. At the same time, the movement of the turbulence plate 16 can drive the cleaning bristles to clean the smoke dust in the air distribution hole 8, thereby avoiding the blockage of the air distribution hole 8 by the smoke dust.

[0040] With reference to Figure 4 The driving mechanism comprises a first bevel gear 17, a second bevel gear 18 and a fixing column 19. The end of the turbulence column 15 close to the support column 14 penetrates into the first cavity and is fixedly provided with the first bevel gear 17. The second bevel gear 18 is rotationally arranged on the inner bottom wall of the first cavity. The second bevel gear 18 is engaged with the proximal first bevel gear 17. The fixing column 19 is fixedly arranged on the fixing disc 3. The end of the fixing column 19 away from the fixing disc 3 penetrates through the first air inlet pipe 4 and the support column 14. The fixing column 19 is fixedly connected with the second bevel gear 18. Specifically, the rotation of the support column 14 can drive the first bevel gear 17 to move around the second bevel gear 18. The engagement of the first bevel gear 17 and the second bevel gear 18 can drive the first bevel gear 17 and the turbulence column 15 to rotate, so that the turbulence plate 16 moves around the turbulence column 15, thereby improving the stirring effect of the flue gas and the cleaning effect of the air distribution plate 7.

[0041] The working principle is that, in use, the operator can pass flue gas into the first air inlet pipe 4 through the air inlet hose 9, and then pass flue gas into the fixed cylinder 2 through the air inlet 6 on the second air inlet pipe 5, the flue gas is uniformly distributed through the air distribution holes 8 on the air distribution plates 7, at the same time, the operator controls the first motor 13 to work, the working of the first motor 13 can drive the first gear 12 to rotate, and at the same time, the first gear 12 drives the first air inlet pipe 4 to rotate through the meshing with the first tooth ring 11, thereby adjusting the position of the air inlet 6, so as to facilitate uniform flue gas into the fixed cylinder 2, thereby improving the uniformity of the flue gas, at the same time, the rotation of the first air inlet pipe 4 can drive the support column 14 to rotate, so that the turbulence column 15 and the turbulence plate 16 move around the support column 14, thereby facilitating the turbulence plate 16 to stir the flue gas, so that the flue gas uniformly passes through the air distribution holes 8, thereby improving the uniformity of the flue gas, at the same time, the movement of the turbulence plate 16 can drive the cleaning brush to clean the flue dust in the air distribution holes 8, thereby avoiding the air distribution holes 8 from being blocked by the flue dust, and the rotation of the support column 14 can drive the first bevel gear 17 to move around the second bevel gear 18, at the same time, the first bevel gear 17 and the second bevel gear 18 can drive the first bevel gear 17 and the turbulence column 15 to rotate through the meshing, thereby making the turbulence plate 16 move around the turbulence column 15, thereby improving the stirring effect of the flue gas and the cleaning effect on the air distribution plate 7.

[0042] Although the embodiments of the present application have been shown and described, it is to be understood that for the purpose of the present application, the embodiments can be changed, modified, replaced and varied in many ways without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A uniform smoke device for desulfurization and denitrification of a thermal power plant, installed in a desulfurization and denitrification tower (1), comprising a fixed cylinder (2), the bottom end of the fixed cylinder (2) being sealingly provided with a fixed disc (3), the fixed cylinder (2) being fixedly arranged in the desulfurization and denitrification tower (1), characterized in that, Also include: The first air pipe (4) is rotatably and sealingly arranged on the fixed disc (3), the top end of the first air pipe (4) is sealing, and the side wall of the first air pipe (4) is provided with a plurality of second air pipes (5), and the bottom side wall of the second air pipe (5) is provided with a plurality of air inlets (6); The fixed cylinder (2) is provided with a plurality of air distribution plates (7) on one side of the first air pipe (4), and the air distribution plates (7) are uniformly distributed with air distribution holes (8); The air inlet hose (9) is arranged on the side wall of the desulfurization and denitrification tower (1), one end of the air inlet hose (9) penetrates the fixed disc (3) and extends into the first air pipe (4); The rotating mechanism is arranged on the fixed disc (3) for driving the first air pipe (4) to rotate; The fixed cylinder (2) is provided with a plurality of turbulence mechanisms on one side of the air distribution plate (7) for guiding the flow of flue gas.

2. The uniform smoke device for desulfurization and denitrification of a thermal power plant according to claim 1, characterized in that, The number of air distribution holes (8) on the plurality of air distribution plates (7) in the direction away from the first air pipe (4) increases in turn.

3. The uniform smoke device for desulfurization and denitrification of a thermal power plant according to claim 2, characterized in that, The rotating mechanism comprises: The fixed cover (10) is fixedly arranged on the fixed disc (3), the first air pipe (4) penetrates the fixed cover (10) and is rotatably connected with the fixed cover (10); The first tooth ring (11) is fixedly arranged on the side wall of the first air pipe (4); The first gear (12) is rotatably arranged on the fixed disc (3), and the first gear (12) is engaged with the first tooth ring (11); The first motor (13) is installed on the fixed disc (3), and the output end of the first motor (13) is fixedly connected with the first gear (12).

4. The uniform smoke device for desulfurization and denitrification of a thermal power plant according to claim 3, characterized in that, The turbulence mechanism comprises: The support column (14) is fixedly arranged on the first air pipe (4), and one end of the support column (14) away from the first air pipe (4) penetrates a plurality of air distribution plates (7) and is rotatably connected with the air distribution plates (7); The first cavity is arranged on one side of the air distribution plate (7) in the support column (14); The turbulence column (15) is rotatably arranged on the side wall of the support column (14) on the side of the first cavity; The turbulence plate (16) is arranged on the side of the turbulence column (15), and a plurality of fixed rods are fixedly arranged between the turbulence plate (16) and the turbulence column (15), and the side wall of the turbulence plate (16) away from the turbulence column (15) is uniformly distributed with cleaning bristles, and the cleaning bristles are pressed on the air distribution plate (7); The driving mechanism is arranged in the support column (14) for driving the turbulence column (15) to rotate.

5. The uniform smoke device for desulfurization and denitrification of a thermal power plant according to claim 4, characterized in that, The driving mechanism comprises: The first bevel gear (17) is arranged in the first cavity near one end of the supporting column (14) and fixedly provided with a first bevel gear (17); The second bevel gear (18) is rotatably arranged on the inner bottom wall of the first cavity, and the second bevel gear (18) is engaged with the proximal first bevel gear (17); The fixed column (19) is fixedly arranged on the fixed disc (3), one end of the fixed column (19) away from the fixed disc (3) penetrates the first air inlet pipe (4) and the supporting column (14), and the fixed column (19) is fixedly connected with the second bevel gear (18).

6. The uniform smoke device for desulfurization and denitrification of a thermal power plant according to claim 5, characterized in that, The first motor (13) is provided with a protective cover, and the protective cover is fixedly connected with the fixed disc (3).

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