Cyclone separation device

Abstract

The utility model relates to the technical field of environmental protection equipment, and discloses a cyclone separation device which comprises a chimney, a first cyclone plate, a second cyclone plate and a shunting cylinder, the chimney is used for conveying smoke in the height direction; the first rotational flow plate is provided with an exhaust hole penetrating in the height direction, the first rotational flow plate is connected into the chimney, and the thickness direction of the first rotational flow plate extends in the height direction; the flow dividing cylinder is arranged in the chimney, the axis of the flow dividing cylinder extends in the thickness direction, one end of the flow dividing cylinder along the axis is connected to the bottom side of the first rotational flow plate in the height direction, and the flow dividing cylinder communicates with the exhaust hole; the second rotational flow plate is connected into the flow dividing cylinder, and the thickness direction of the second rotational flow plate extends in the height direction. Specifically, the cyclone separation device is applied to the treatment of the flue gas generated in the wet desulphurization process, and the flue gas can be effectively dehydrated, so that the moisture content of the flue gas discharged from the chimney is relatively low, and the quantity of the flue gas condensed into small water drops after being cooled is correspondingly reduced, so that the phenomenon of white smoke is obviously reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to environmental protection equipment technical field, especially a cyclone separation device. BACKGROUND

[0002] In the wet desulphurization, when the high temperature and high humidity desulfurization flue gas is discharged from the chimney, it meets the outside cold air, and the water vapor quickly condenses into small water droplets, forming white smoke material, that is, "white smoke", which can cause visual pollution, therefore, the problem of "white smoke" after the wet desulfurization needs to be handled. SUMMARY

[0003] The utility model discloses a cyclone separation device, which can effectively treat the flue gas generated after the wet desulfurization, so that the phenomenon of white smoke is obviously reduced.

[0004] In order to achieve the above purpose, the utility model provides a cyclone separation device, which comprises a chimney, a first cyclone plate, a second cyclone plate and a flow dividing cylinder.

[0005] The chimney is used for conveying flue gas along the height direction.

[0006] The first cyclone plate has an exhaust hole penetrating along the height direction, and the first cyclone plate is connected in the chimney, and the thickness direction of the first cyclone plate extends along the height direction.

[0007] The flow dividing cylinder is arranged in the chimney, and the axis of the flow dividing cylinder extends along the thickness direction, and one end of the flow dividing cylinder along the axis is connected to the bottom side of the first cyclone plate along the height direction, and the flow dividing cylinder is communicated with the exhaust hole.

[0008] The second cyclone plate is connected in the flow dividing cylinder, and the thickness direction of the second cyclone plate extends along the height direction.

[0009] In a specific embodiment of the utility model, the cyclone separation device further comprises a water baffle ring, the water baffle ring is arranged in the chimney along the height direction, the water baffle ring is located above the first cyclone plate, the outer peripheral surface of the water baffle ring is connected with the inner wall surface of the chimney, and the water baffle ring is coaxially arranged with the chimney.

[0010] In a specific embodiment of the utility model, the cyclone separation device further comprises a water collecting ring and a drain pipe.

[0011] The water collecting ring is arranged in the flow distribution cylinder, and in the height direction, the water collecting ring is below the second cyclone plate, the outer circumferential surface of the water collecting ring is connected with the inner wall surface of the flow distribution cylinder, the water collecting ring is coaxially arranged with the flow distribution cylinder, and a water collecting groove is formed between the water collecting ring and the inner wall surface of the flow distribution cylinder, and the groove opening of the water collecting groove is directed to the second cyclone plate in the height direction.

[0012] The drain pipe is connected with the outer wall surface of the flow distribution cylinder at one end in the length direction and is communicated with the water collecting groove, and is connected with the inner wall surface of the chimney at the other end and forms a drain opening between the inner wall surface of the chimney, and the drain opening is arranged downward in the height direction.

[0013] In a specific embodiment of the utility model, the number of the drain pipes is multiple, and the multiple drain pipes are arranged at intervals around the axis of the flow distribution cylinder.

[0014] In a specific embodiment of the utility model, the cyclone separation device further comprises a cooling block, a first cooling pipe and a second cooling pipe.

[0015] The cooling block has a cooling cavity, and the cooling block is connected to the outer wall surface of the flow distribution cylinder, and in the height direction, the cooling block is below the second cyclone plate.

[0016] The first cooling pipe is arranged through the chimney, and one end of the first cooling pipe in the length direction is connected with the cooling block and is communicated with the cooling cavity, and the first cooling pipe is used for inputting cooling medium.

[0017] The second cooling pipe is arranged through the chimney, and one end of the second cooling pipe in the length direction is connected with the cooling block and is communicated with the cooling cavity, and the second cooling pipe is used for outputting cooling medium.

[0018] In a specific embodiment of the utility model, the cooling block is annular, and the cooling block is coaxially arranged with the flow distribution cylinder.

[0019] In a specific embodiment of the utility model, the cyclone separation device further comprises a heat dissipation member, the heat dissipation member is arranged in the chimney, and the outer circumferential wall of the first cooling pipe and the second cooling pipe is connected with the heat dissipation member.

[0020] In a specific embodiment of the utility model, the heat dissipation member is a fin, and the fin is arranged in a spiral shape.

[0021] In the first cooling pipe, the fin is arranged around the axis of the first cooling pipe.

[0022] In the second cooling pipe, the fin is arranged around the axis of the second cooling pipe.

[0023] The cyclone separation device has the beneficial effects that, compared with the prior art, the cyclone separation device can effectively separate the flue gas into two streams for gas-liquid separation, can effectively dehydrate the flue gas, the flue gas discharged from the chimney has a relatively low moisture content, the number of small water droplets condensed after cooling is correspondingly reduced, and the phenomenon of white smoke is obviously reduced.

[0024] The cyclone separation device of the utility model, flue gas is conveyed and discharged along the height direction through the chimney, when the flue gas passes through the first cyclone plate in the conveying process, the centrifugal force generated by the rotation of the flue gas makes the liquid in it be thrown to the inner wall surface of the chimney and flow down along the inner wall surface, and the gas continues to flow upward and discharge, since the second cyclone plate is arranged in the shunt cylinder, the flue gas entering the shunt cylinder will also be subjected to gas-liquid separation under the action of the second cyclone plate, the liquid is thrown to the inner wall surface of the shunt cylinder and flows down along the inner wall surface, and the gas is discharged through the exhaust hole of the first cyclone plate, in the above process, the flue gas is separated into two streams for gas-liquid separation, which can effectively dehydrate the flue gas, and thus the flue gas discharged from the chimney has a relatively low moisture content, the number of small water droplets condensed after cooling is correspondingly reduced, and the phenomenon of white smoke is obviously reduced. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is the sectional view of the cyclone separation device of the utility model embodiment;

[0026] Figure 2 is the sectional view of the shunt cylinder of the utility model embodiment;

[0027] Figure 3 is the utility model embodiment Figure 1 is the enlarged schematic view of A in the utility model embodiment;

[0028] Figure 4 is the top view of the cooperation of the first cyclone plate and the second cyclone plate of the utility model embodiment.

[0029] In the figure, 1, chimney;2, first cyclone plate;201, exhaust hole;3, second cyclone plate;4, shunt cylinder;5, water retaining ring;6, water collecting ring;7, drain pipe;8, cooling block;801, cooling cavity;9, first cooling pipe;10, second cooling pipe;11, heat dissipation piece;100, water collecting tank;200, drain port;Z, height direction. DETAILED DESCRIPTION

[0030] The specific implementation of the utility model will be described in further detail below in combination with the drawings and embodiments. The following embodiments are used to illustrate the utility model, but not to limit the scope of the utility model.

[0031] The wet desulfurization is to use the water solution (such as lime slurry and the like) of the desulfurizer to react with the sulfur dioxide and the like pollutants in the flue gas, and in the process, a large amount of water will evaporate into the flue gas, so that the moisture content of the flue gas is significantly increased. When the saturated wet flue gas after the wet desulfurization is discharged from the chimney 1, it encounters the ambient air with lower temperature, the water vapor in the flue gas will be rapidly cooled and condensed into a large number of tiny water droplets, and these tiny water droplets suspended in the air form white smoke, that is, white smoke.

[0032] As shown in Figures 1 to 4 The utility model discloses a cyclone separation device, which comprises a chimney 1, a first cyclone plate 2, a second cyclone plate 3 and a flow dividing cylinder 4. The chimney 1 is used for conveying flue gas along the height direction Z. The first cyclone plate 2 has an exhaust hole 201 penetrating along the height direction Z. The first cyclone plate 2 is connected to the chimney 1. The thickness direction of the first cyclone plate 2 extends along the height direction Z. The flow dividing cylinder 4 is arranged in the chimney 1. The axis of the flow dividing cylinder 4 extends along the thickness direction. The flow dividing cylinder 4 is connected to the bottom side of the first cyclone plate 2 along the height direction Z at one end along the axis. The flow dividing cylinder 4 is in communication with the exhaust hole 201. The second cyclone plate 3 is connected to the flow dividing cylinder 4. The thickness direction of the second cyclone plate 3 extends along the height direction Z.

[0033] Specifically, the cyclone separation device is applied to the treatment of flue gas generated in the wet desulfurization process. The flue gas is conveyed and discharged from the chimney 1 along the height direction Z. When the flue gas passes through the first cyclone plate 2 during the conveying process, the centrifugal force generated by the rotation of the flue gas causes the liquid in the flue gas to be thrown to the inner wall of the chimney 1 and flow down along the inner wall, while the gas continues to flow upward and is discharged. Since the second cyclone plate 3 is arranged in the flow dividing cylinder 4, the flue gas entering the flow dividing cylinder 4 is also subjected to gas-liquid separation under the action of the second cyclone plate 3. The liquid is thrown to the inner wall of the flow dividing cylinder 4 and flows down along the inner wall. The gas is discharged through the exhaust hole 201 of the first cyclone plate 2. In the above process, the flue gas is separated into two streams for gas-liquid separation, which can effectively dehydrate the flue gas. Therefore, the flue gas discharged from the chimney 1 has relatively low moisture content, and the number of small water droplets condensed after being cooled is also correspondingly reduced, thereby significantly reducing the phenomenon of white smoke.

[0034] As shown in Figure 1 The cyclone separation device further comprises a water blocking ring 5. The water blocking ring 5 is arranged in the chimney 1 along the height direction Z and located above the first cyclone plate 2. The outer peripheral surface of the water blocking ring 5 is connected to the inner wall of the chimney 1. The water blocking ring 5 is coaxially arranged with the chimney 1. The arrangement of the water blocking ring 5 can block the liquid on the inner wall of the chimney 1, so that the liquid can be collected at the water blocking ring 5 and then flow down along the inner wall of the chimney 1. It should be noted that the inner side of the water blocking ring 5 can allow the flue gas to pass through, so as to ensure that the flue gas can be discharged from the chimney 1.

[0035] As shown in Figure 2 and Figure 3As shown, the cyclone separator also includes a water collecting ring 6 and a drain pipe 7. The water collecting ring 6 is located inside the diversion cylinder 4 along the height direction Z, below the second cyclone plate 3. The outer circumferential surface of the water collecting ring 6 is connected to the inner wall surface of the diversion cylinder 4. The water collecting ring 6 and the diversion cylinder 4 are coaxially arranged, forming a water collecting trough 100 between the water collecting ring 6 and the inner wall surface of the diversion cylinder 4. The opening of the water collecting trough 100 faces the second cyclone plate 3 along the height direction Z. One end of the drain pipe 7 along its length direction is connected to the outer wall surface of the diversion cylinder 4 and communicates with the water collecting trough 100, and the other end is connected to the chimney 1. The inner wall of the diversion cylinder 4 is connected to and forms a drain outlet 200 between the inner wall of the chimney 1 and the drain outlet 200 is set downward along the height direction Z. Specifically, the flue gas in the diversion cylinder 4 achieves gas-liquid separation under the action of the second swirl plate 3. The liquid gathers on the inner wall of the diversion cylinder 4 and flows downward. Thus, the water collection tank 100 can collect the liquid flowing down the inner wall of the diversion cylinder 4, and the liquid can flow from the drain outlet 200 to the inner wall of the chimney 1 through the drain pipe 7, avoiding the liquid from dripping directly from the bottom of the diversion cylinder 4 and reducing the possibility of the flue gas carrying the liquid along with it.

[0036] For example, the drain pipe 7 is arranged at an angle downwards, with one end of the drain pipe 7 connected to the inner wall of the chimney 1 located at the bottom. The drain pipe 7 can discharge the liquid from the water collection tank 100 when there is no flue gas in the chimney 1. This application does not limit this.

[0037] In this embodiment, there are multiple drain pipes 7, which are arranged at intervals around the axis of the diverter cylinder 4. The arrangement of the drain pipes 7 can support the diverter cylinder 4, and the cyclone separation device has a reliable structure.

[0038] like Figure 1 and Figure 2 As shown, the cyclone separator also includes a cooling block 8, a first cooling pipe 9, and a second cooling pipe 10. The cooling block 8 has a cooling cavity 801. The cooling block 8 is connected to the outer wall of the diverter 4 and is located below the second cyclone plate 3 along the height direction Z. The first cooling pipe 9 passes through the chimney 1, and one end of the first cooling pipe 9 along its length direction is connected to the cooling block 8 and communicates with the cooling cavity 801. The first cooling pipe 9 is used to input the cooling medium. The second cooling pipe 10 passes through the chimney 1, and one end of the second cooling pipe 10 along its length direction is connected to the cooling block 8 and communicates with the cooling cavity 801. The second cooling pipe 10 is used to output the cooling medium. For example, the cooling medium is cold air. The cold air is input into the cooling chamber 801 from the first cooling pipe 9 and output through the second cooling pipe 10. Based on the arrangement of the first cooling pipe 9, the second cooling pipe 10 and the cooling block 8, the flue gas in the diversion cylinder 4 and the chimney 1 can be cooled down in advance before being output. By condensing and removing some of the moisture in the flue gas, the moisture content of the flue gas can be reduced, and the generation of white smoke can be reduced.

[0039] Further, the cooling block 8 is annular, and the cooling block 8 is coaxially arranged with the flow distribution cylinder 4, at this time, the cooling cavity 801 is arranged around the flow distribution cylinder 4, and the cooling medium has a good cooling effect on the flue gas in the flow distribution cylinder 4 when passing through the cooling cavity 801, which is beneficial to reduce the generation of white smoke.

[0040] Further, the cyclone separation device further comprises a heat dissipation piece 11, the heat dissipation piece 11 is arranged in the chimney 1, and the outer peripheral wall of the first cooling pipe 9 and the second cooling pipe 10 is connected with the heat dissipation piece 11, the arrangement of the heat dissipation piece 11 can improve the heat exchange efficiency of the cooling medium and the flue gas in the first cooling pipe 9 and the second cooling pipe 10, which is beneficial to reduce the moisture content of the flue gas and reduce the generation of white smoke.

[0041] Preferably, the heat dissipation piece 11 is a fin, and the fin is arranged in a spiral shape; in the first cooling pipe 9, the fin is arranged around the axis of the first cooling pipe 9; in the second cooling pipe 10, the fin is arranged around the axis of the second cooling pipe 10, and the heat dissipation piece 11 with this structure has a simple structure and high heat exchange efficiency with the flue gas.

[0042] It should be noted that the first cyclone plate 2 is connected in the chimney 1 through the first support, and the outer peripheral surface of the first cyclone plate 2 and the inner wall surface of the chimney 1 form a first drainage gap, the second cyclone plate 3 is connected in the flow distribution cylinder 4 through the second support, and the outer peripheral surface of the second cyclone plate 3 and the inner wall surface of the flow distribution cylinder 4 form a second drainage gap, the first drainage gap and the second drainage gap are for liquid to pass through; for example, the first support and the second support are cross-shaped support frames which are formed by two support rods.

[0043] The above only describes the preferred embodiments of the present application, and it should be noted that for ordinary skilled in the art, without departing from the technical principles of the present application, a number of improvements and replacements can be made, and these improvements and replacements should also be regarded as the protection scope of the present application.

Claims

1. A cyclonic separating apparatus comprising: The chimney (1), the first cyclone plate (2), the second cyclone plate (3) and the flow dividing cylinder (4) are included. The chimney (1) is used for conveying flue gas along the height direction (Z); The first cyclone plate (2) has an exhaust hole (201) penetrating along the height direction (Z), the first cyclone plate (2) is connected in the chimney (1), the thickness direction of the first cyclone plate (2) extends along the height direction (Z); The flow dividing cylinder (4) is arranged in the chimney (1), the axis of the flow dividing cylinder (4) extends along the thickness direction, one end of the flow dividing cylinder (4) along the axis is connected to the bottom side of the first cyclone plate (2) along the height direction (Z), and the flow dividing cylinder (4) is communicated with the exhaust hole (201); The second cyclone plate (3) is connected in the flow dividing cylinder (4), the thickness direction of the second cyclone plate (3) extends along the height direction (Z).

2. The cyclonic separation apparatus of claim 1 wherein, The cyclone separation device further comprises a water retaining ring (5), the water retaining ring (5) is arranged in the chimney (1), and along the height direction (Z), the water retaining ring (5) is located above the first cyclone plate (2), the outer peripheral surface of the water retaining ring (5) is connected with the inner wall surface of the chimney (1), and the water retaining ring (5) is coaxially arranged with the chimney (1).

3. The cyclonic separation device of claim 1, wherein, The cyclone separation device further comprises a water collecting ring (6) and a drain pipe (7); The water collecting ring (6) is arranged in the flow dividing cylinder (4), and along the height direction (Z), the water collecting ring (6) is located below the second cyclone plate (3), the outer peripheral surface of the water collecting ring (6) is connected with the inner wall surface of the flow dividing cylinder (4), the water collecting ring (6) is coaxially arranged with the flow dividing cylinder (4), a water collecting groove (100) is formed between the water collecting ring (6) and the inner wall surface of the flow dividing cylinder (4), and the groove opening of the water collecting groove (100) faces the second cyclone plate (3) along the height direction (Z); The drain pipe (7) is connected with the outer wall surface of the flow dividing cylinder (4) at one end along the length direction and communicated with the water collecting groove (100), and the other end is connected with the inner wall surface of the chimney (1) and forms a drain port (200) between the inner wall surface of the chimney (1), and the drain port (200) is arranged downward along the height direction (Z).

4. The cyclonic separation device of claim 3, wherein, The number of the drain pipes (7) is multiple, and the multiple drain pipes (7) are arranged at intervals around the axis of the flow dividing cylinder (4).

5. The cyclonic separation device of claim 1, wherein, The cyclone separation device further comprises a cooling block (8), a first cooling pipe (9) and a second cooling pipe (10); The cooling block (8) has a cooling cavity (801), the cooling block (8) is connected to the outer wall surface of the flow dividing cylinder (4), and along the height direction (Z), the cooling block (8) is located below the second cyclone plate (3); The first cooling pipe (9) penetrates the chimney (1), and one end of the first cooling pipe (9) along the length direction is connected with the cooling block (8) and communicated with the cooling cavity (801), and the first cooling pipe (9) is used for inputting cooling medium; The second cooling pipe (10) is arranged in the chimney (1), and one end of the second cooling pipe (10) along the length direction is connected with the cooling block (8) and communicates with the cooling cavity (801), and the second cooling pipe (10) is used for outputting cooling medium.

6. The cyclonic separation device of claim 5, wherein, The cooling block (8) is annular, and the cooling block (8) is coaxially arranged with the flow dividing cylinder (4).

7. The cyclonic separation device of claim 5, wherein, The cyclone separation device further comprises a heat dissipation member (11), the heat dissipation member (11) is arranged in the chimney (1), and the outer peripheral wall of the first cooling pipe (9) and the second cooling pipe (10) is connected with the heat dissipation member (11).

8. The cyclonic separation device of claim 7, wherein, The heat dissipation member (11) is a fin, and the fin is arranged in a spiral shape; In the first cooling pipe (9), the fin is arranged around the axis of the first cooling pipe (9); In the second cooling pipe (10), the fin is arranged around the axis of the second cooling pipe (10).

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