Spray system of spray tower

Abstract

The utility model discloses a spraying system of a spraying tower, which relates to the waste gas treatment technology, and adopts the technical scheme that the spraying system comprises a tower body, a spraying pipe and a nozzle, the spraying pipe comprises a main pipe and a branch pipe, the nozzle is rotatably connected to the branch pipe, a rotating piece is arranged in the nozzle, and the nozzle is provided with an atomizing opening and a liquid flow opening. The spray head starts to rotate under the action of the rotating part, the treatment liquid in the spray head is sprayed out from the atomization opening and the liquid flow opening under the action of liquid pressure, the treatment liquid sprayed out from the liquid flow opening is large in particle diameter and can effectively combine pollutants with large diameters in waste gas, the treatment liquid sprayed out from the atomization opening is small in particle diameter, and the pollutants can be effectively combined with the pollutants with large diameters in the waste gas. The spray tower is simple in structure, large in dispersion area and longer in hang time, and can be fully combined with pollutants with smaller diameters in waste gas, and meanwhile, as the rotation of the spray head can provide centrifugal force for the treatment liquid leaving the spray head, the treatment liquid sprayed out of the atomization port and the liquid flow port can have wider coverage area, and the working efficiency of the spray tower is improved.

Description

Technical Field

[0001] This utility model relates to waste gas treatment technology, and more specifically, to a spray tower spraying system. Background Technology

[0002] A spray tower is an environmental protection device widely used in industrial waste gas treatment. It mainly absorbs, neutralizes and purifies pollutants in the gas through gas-liquid contact. A spray tower includes a tower body, a packing frame, a spray system and a water circulation system. The spray system consists of spray pipes and nozzles.

[0003] When the spray tower is in operation, the exhaust gas enters the tower body through the inlet pipe, and the spray pipe delivers the treatment liquid to the nozzle. The nozzle sprays the treatment liquid out, and the sprayed treatment liquid combines with the pollutants in the exhaust gas, causing the pollutants to fall onto the packing frame due to gravity and react with the substances on the packing frame to transform into harmless substances. Through the above treatment, most of the harmful substances in the exhaust gas can be removed or transformed, so that the exhaust gas can meet the emission standards and leave the tower body from the exhaust port.

[0004] However, spray pipes and nozzles are generally fixedly installed inside the tower, which means that the spraying area of ​​the nozzles is fixed and there may be dead zones. This can lead to insufficient combination of pollutants in the exhaust gas and the treatment liquid, affecting the treatment efficiency of the spray tower for exhaust gas.

[0005] Therefore, a new solution is needed to address this problem. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a spray tower spraying system.

[0007] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a spray tower spray system, including a tower body, a spray pipe and a nozzle, wherein the spray pipe includes a main pipe fixed in the tower body and a branch pipe fixed on the peripheral wall of the main pipe, the nozzle is rotatably connected to the branch pipe, the nozzle is provided with a rotating component for providing torque to the nozzle, the nozzle has an atomizing port located on the side wall of the nozzle and a liquid flow port located on the bottom surface of the nozzle, the diameter of the atomizing port is smaller than the diameter of the liquid flow port.

[0008] The present invention is further configured such that: the branch pipe is provided with an annular protrusion, the nozzle is provided with an annular groove for embedding the annular protrusion, and the rotating component is a plurality of flow dividers fixed on the bottom wall of the annular groove, and the plurality of flow dividers are distributed in an annular array along the central axis of the nozzle.

[0009] The present invention is further configured such that: the annular protrusion has a liquid inlet that connects to the branch pipe, and the opening area of ​​the liquid inlet near the branch pipe is larger than the opening area of ​​the liquid inlet near the nozzle.

[0010] The present invention is further configured such that: the annular groove includes a first circular groove and a second circular groove with an inner diameter larger than that of the first circular groove; the flow divider is disposed in the first circular groove; the atomizing port penetrates the inner peripheral wall of the second circular groove; and the liquid flow port penetrates the bottom wall of the second circular groove.

[0011] The present invention is further configured such that the opening of the liquid inlet near the nozzle is eccentrically positioned.

[0012] The present invention is further configured such that a filter screen covering the liquid inlet is provided at one end of the annular protrusion near the branch pipe.

[0013] In summary, this utility model has the following beneficial effects:

[0014] During operation of the spray tower, the treatment liquid enters the nozzles sequentially through the main pipe and branch pipes. The nozzles rotate under the action of rotating components, and the treatment liquid is ejected from the atomizing port and the liquid outlet under liquid pressure. The treatment liquid ejected from the liquid outlet has a larger particle diameter, effectively binding with larger-diameter pollutants in the exhaust gas. The treatment liquid ejected from the atomizing port has a smaller particle diameter, a larger dispersion area, and a longer residence time, allowing it to fully bind with smaller-diameter pollutants in the exhaust gas. Simultaneously, the rotation of the nozzles provides centrifugal force to the treatment liquid leaving the nozzles, resulting in a wider coverage area for the treatment liquid ejected from the atomizing port and the liquid outlet. Compared to the treatment liquid ejected from fixed nozzles in existing technologies, the above solution has a smaller dead zone for the sprayed treatment liquid, effectively improving the binding rate between the treatment liquid and pollutants, thereby increasing the working efficiency of the spray tower. Attached Figure Description

[0015] Figure 1 This is a partial cross-sectional view of the present invention;

[0016] Figure 2 for Figure 1 Enlarged diagram of section A in the middle;

[0017] Figure 3 This is a cross-sectional view of the nozzle in this utility model;

[0018] Figure 4 This is a cross-sectional view of the annular protrusion in this utility model.

[0019] In the diagram: 1. Tower body; 2. Nozzle; 3. Main pipe; 4. Branch pipe; 5. Atomizing port; 6. Liquid inlet; 7. Annular protrusion; 8. Diverter plate; 9. Liquid inlet; 10. First circular groove; 11. Second circular groove. Detailed Implementation

[0020] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0021] Spray tower spray system, such as Figure 1 and Figure 2 As shown, the system includes a tower body 1, a spray pipe, and a nozzle 2. The spray pipe includes a main pipe 3 fixed in the tower body 1 and a branch pipe 4 fixed on the periphery of the main pipe 3. The nozzle 2 is rotatably connected to the branch pipe 4. The nozzle 2 has a rotating component to provide torque to the nozzle 2. The nozzle 2 has an atomizing port 5 on its side wall and a liquid outlet 6 on its bottom surface. The diameter of the atomizing port 5 is smaller than the diameter of the liquid outlet 6. When the spray tower is operating, the treatment liquid enters the nozzle 2 sequentially through the main pipe 3 and the branch pipe 4. The nozzle 2 starts to rotate under the action of the rotating component. Under the action of liquid pressure, the treatment liquid in the nozzle 2 is sprayed out from the atomizing port 5 and the liquid outlet 6. The treatment liquid sprayed from nozzle 6 has a larger particle diameter, which can effectively bind to larger pollutants in the exhaust gas. The treatment liquid sprayed from atomizing nozzle 5 has a smaller particle diameter, a larger dispersion area, and a longer residence time, which can fully bind to smaller pollutants in the exhaust gas. At the same time, the rotation of nozzle 2 provides centrifugal force to the treatment liquid leaving nozzle 2, which allows the treatment liquid sprayed from atomizing nozzle 5 and liquid flow port 6 to have a wider coverage area. Compared with the treatment liquid sprayed from the fixed nozzle 2 in the prior art, the above scheme has a smaller dead zone for the treatment liquid sprayed from nozzle 2, which can effectively improve the binding rate of treatment liquid and pollutants, thereby improving the working efficiency of the spray tower.

[0022] like Figures 1 to 4As shown, an annular protrusion 7 is welded to the branch pipe 4, and an annular groove is formed on the nozzle 2 for the annular protrusion 7 to be inserted. The rotating component consists of several diverter plates 8 fixed to the bottom wall of the annular groove. The diverter plates 8 are inclined and arranged in a circular array along the central axis of the nozzle 2. An inlet 9 communicating with the branch pipe 4 is formed on the annular protrusion 7. The diverter plates 8 are used to directly bear the impact force of the treatment liquid in the inlet 9. This allows the impact force of the treatment liquid to act on the diverter plates 8 when treatment liquid is sprayed out of the inlet 9, generating a torque along the surface of the diverter plates 8 that causes the nozzle 2 to rotate. This arrangement allows the nozzle 2 to rotate by means of the diverter plate 8. Injecting the treatment fluid into the nozzle 2 allows the rotating component to provide torque to the nozzle 2, eliminating the need for an external power source to rotate the nozzle 2 and saving on the manufacturing cost of the spray tower. The opening area of ​​the inlet 9 near the branch pipe 4 is larger than the opening area of ​​the inlet 9 near the nozzle 2. Since the flow rate of the treatment fluid flowing through the connection between the annular protrusion 7 and the branch pipe 4 is equal to the flow rate of the treatment fluid entering the nozzle 2 from the annular protrusion 7 in the same amount of time, the above arrangement allows the treatment fluid to have a larger pressure when leaving the annular protrusion 7, which can better impact the diverter plate 8, thereby facilitating the rotation of the nozzle 2. The annular groove includes a first circular groove 10 and an inner diameter greater than 10 mm. The second circular groove 11 of the first circular groove 10 has a flow divider 8 disposed in the first circular groove 10. The atomizing port 5 penetrates the inner peripheral wall of the second circular groove 11, and the liquid outlet 6 penetrates the bottom wall of the second circular groove 11. When the treatment liquid impacts the flow divider 8, it will accumulate in the first circular groove 10. As more treatment liquid enters the first circular groove 10, it will overflow the first circular groove 10 and fill the second circular groove 11. This arrangement can better maintain the pressure of the treatment liquid in the second circular groove 11, thus facilitating the treatment liquid to be sprayed out from the atomizing port 5 and the liquid outlet 6 under pressure. The opening of the liquid inlet 9 near the nozzle 2 is slightly off-center. The inlet 9 is positioned so that the opening near the nozzle 2 is located only above a portion of the diverter plate 8. This design ensures that the liquid entering the nozzle 2 from the inlet 9 only provides impact force to the diverter plate 8 located directly below the inlet 9. This better converts the impact force of the liquid into torque on the diverter plate 8, facilitating the rotation of the nozzle 2 under torque. The annular protrusion 7 is equipped with a filter screen covering the inlet 9 at one end near the branch pipe 4. The filter screen can remove impurities or undissolved particles in the liquid, reducing the possibility of clogging the atomizing port 5 or the liquid flow port 6 and improving the service life of the nozzle 2.

[0023] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A spray tower spraying system, comprising a tower body (1), spray pipes and nozzles (2), characterized in that: The spray pipe includes a main pipe (3) fixed in the tower body (1) and a branch pipe (4) fixed on the periphery of the main pipe (3). The nozzle (2) is rotatably connected to the branch pipe (4). The nozzle (2) is provided with a rotating component for providing torque to the nozzle (2). The nozzle (2) has an atomizing port (5) on the side wall of the nozzle (2) and a liquid flow port (6) on the bottom surface of the nozzle (2). The diameter of the atomizing port (5) is smaller than the diameter of the liquid flow port (6).

2. The spray tower spraying system according to claim 1, characterized in that: The branch pipe (4) is provided with an annular protrusion (7), and the nozzle (2) is provided with an annular groove for embedding the annular protrusion (7). The rotating component is a number of flow dividers (8) fixed on the bottom wall of the annular groove. The number of flow dividers (8) are arranged in an annular array along the central axis of the nozzle (2).

3. The spray tower spraying system according to claim 2, characterized in that: The annular protrusion (7) has an inlet (9) that connects to the branch pipe (4). The opening area of ​​the inlet (9) near the branch pipe (4) is larger than the opening area of ​​the inlet (9) near the nozzle (2).

4. The spray tower spraying system according to claim 3, characterized in that: The annular groove includes a first circular groove (10) and a second circular groove (11) with an inner diameter greater than that of the first circular groove (10). The flow divider (8) is disposed in the first circular groove (10). The atomizing port (5) penetrates the inner circumferential wall of the second circular groove (11), and the liquid flow port (6) penetrates the bottom wall of the second circular groove (11).

5. The spray tower spraying system according to claim 3, characterized in that: The opening of the liquid inlet (9) near the nozzle (2) is eccentrically positioned.

6. The spray tower spraying system according to claim 3, characterized in that: The annular protrusion (7) near the branch pipe (4) is provided with a filter screen covering the liquid inlet (9).

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