Tangential nozzle for spray tower

Abstract

The utility model provides a tangential nozzle for a spray tower, which comprises a flange, one end of the flange is provided with a threaded section, and the end face, far away from the flange, of the threaded section is provided with a liquid inlet pipe orifice; the liquid inlet pipe opening serves as a liquid inflow end opening, and the liquid enters the liquid inlet pipe opening and penetrates through the flange through the threaded section. The volute is provided with a spraying hole, the volute is arranged on the side, away from the threaded section, of the flange, the volute is connected with the flange through a guide pipe, and the axis of the volute and the axis of the flange are straight lines in different planes. The threaded section and the flange can form a double-layer fixing mode to improve the connecting strength, the counter-acting force of fluid sprayed out of the spraying holes is consistent with the acting force of thread fastening, and the counter-acting force can resist counter-rotating force generated by external reasons such as vibration in the operation process of the threaded section and the connecting pipe; and the influence of reverse force generated by vibration of the threaded section on the flange is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of nozzles, and particularly relates to a tangential nozzle for a spray tower. Background Art

[0002] At present, the nozzles used in spray towers applied in large industrial plants include tangential, axial nozzles and spiral nozzles, mainly including tangential nozzles (also known as hollow cone tangential nozzles), axial nozzles (also known as solid cone nozzles) and spiral nozzles.

[0003] In the technical field of wet-process phosphoric acid production, through development attempts and long-term production practice, it has been proved that the spray particle size distribution of tangential nozzles is relatively uniform, the dispersion degree is the smallest, when the spray pressure changes, the atomization angle of the spray changes little, and the operation is stable and reliable. However, in the prior art, the connection method between the tangential nozzle and the connecting pipe fitting is mostly threaded connection. After long-term use, the thread will generate a reverse force due to the vibration of external factors, resulting in loosening, and finally the nozzle will fall off, affecting the production process. Summary of the Utility Model

[0004] The utility model provides a tangential nozzle for a spray tower, aiming to solve the problem that after long-term use, the thread of the tangential nozzle will become loose due to the vibration of external factors, and finally the nozzle will fall off, affecting the production process.

[0005] The utility model is realized as follows. A tangential nozzle for a spray tower includes:

[0006] A flange, one end of the flange is provided with a threaded section, and the end face of the threaded section away from the flange is provided with a liquid inlet pipe orifice; the liquid inlet pipe orifice is the port where the liquid flows in, and when entering the liquid inlet pipe orifice, it will pass through the flange through the threaded section;

[0007] A volute, the volute is provided with spray holes, the volute is arranged on the side of the flange away from the threaded section, the volute and the flange are connected by a conduit, and the axis line of the volute and the axis line of the flange are skew lines;

[0008] In this application, the tangential nozzle for a spray tower is connected to the connecting pipe through the flange and the threaded section. Here, the connecting pipe is provided with corresponding internal threads and flange plate structures. After the liquid is introduced through the liquid inlet pipe orifice, it will pass through the flange from the threaded section and enter the volute through the conduit, and then rotate away from the spray holes under the action of the vortex chamber provided inside the volute;

[0009] Preferably, the axis line of the volute and the axis line of the flange are skew perpendicular lines.

[0010] Preferably, one end of the conduit is connected to the end face of the flange away from the threaded section, and the other end is communicated with the volute. When the water flow conveyed by the conduit enters the inside of the volute, it will impact the inner ring wall of the volute and finally flow out from the side wall of the volute.

[0011] Preferably, the axis line of the conduit coincides with the axis line of the flange.

[0012] Preferably, the conduit is arranged in the tangential direction of the volute, and the conduit ensures that the water flow enters the volute without obstruction.

[0013] Preferably, the spray holes are arranged on one end face of the volute, and the reaction force of the fluid ejected from the spray holes is in the same direction as the thread fastening force of the threaded section. The reaction force of the spray holes prevents the loosening of the threaded section and reduces the influence of the reverse force generated by the vibration of the threaded section on the flange.

[0014] Preferably, the center of the circle of the spray holes coincides with the axis line of the volute, and the reaction force of the spray holes acts along the axis line direction of the volute, ensuring that the acting force is effectively transmitted to the volute and then transmitted to the threaded section through the volute and the conduit.

[0015] Preferably, the inner diameter of the liquid inlet pipe is the same as the inner diameter of the threaded section.

[0016] Compared with the prior art, the embodiments of the present application mainly have the following beneficial effects:

[0017] 1. In the tangential nozzle for a spray tower provided by the present utility model, the threaded section is connected to the end face of the connecting pipe by a threaded fit, and a flange structure adapted to the flange is further provided on the end face of the connecting pipe. Here, the threaded section and the flange constitute a double-layer fixing method to improve the structural connection strength of the tangential nozzle for a spray tower and ensure that it is not easy to fall off.

[0018] 2. In the tangential nozzle for a spray tower provided by the present utility model, the axis line of the volute and the axis line of the flange are skew perpendicular lines. Therefore, the recoil force generated during the spraying process in the spray holes on the volute will be converted into a force acting on the threaded section, and the reaction force of the fluid ejected from the spray holes is consistent with the threaded fastening force. The reaction force will resist the reverse force generated by the vibration and other external reasons between the threaded section and the connecting pipe during operation; reduce the influence of the reverse force generated by the vibration of the threaded section on the flange, ensure the connection strength of the flange, and further improve the connection strength of the structure of the tangential nozzle for a spray tower. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic structural view of a tangential nozzle for a spray tower provided by the present utility model.

[0020] Figure 2 is a front view structural view of a tangential nozzle for a spray tower provided by the present utility model.

[0021] Figure 3It is a schematic upward view structure of a tangential nozzle for a spray tower provided by the present utility model.

[0022] Figure 4 It is a schematic cross-sectional structure view of the B-B plane of a tangential nozzle for a spray tower provided by the present utility model.

[0023] Figure 5 It is a schematic cross-sectional structure view of the A-A plane of a tangential nozzle for a spray tower provided by the present utility model.

[0024] Explanation of reference numerals:

[0025] 1. Liquid inlet pipe orifice; 2. Threaded section; 3. Flange; 4. Volute; 5. Spray hole. Detailed implementation manners

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which this application belongs; the terms used in the description of the present application in the specification are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects and are not used to describe a specific order.

[0027] Referring to "embodiments" herein means that specific features, structures, or characteristics described in connection with the embodiments can be included in at least one embodiment of this application. The phrase appears at various positions in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0028] An embodiment of the present utility model provides a tangential nozzle for a spray tower, as Figures 1-5 shown, the tangential nozzle for a spray tower includes:

[0029] A flange 3, one end of the flange 3 is provided with a threaded section 2, and the end face of the threaded section 2 away from the flange 3 is provided with a liquid inlet pipe orifice 1; the liquid inlet pipe orifice 1 is a port for liquid to flow in, and the liquid entering the liquid inlet pipe orifice 1 will pass through the flange 3 through the threaded section 2;

[0030] A volute 4, the volute 4 is provided with a spray hole 5, the volute 4 is arranged on the side of the flange 3 away from the threaded section 2, the volute 4 is connected to the flange 3 through a conduit, the axis line of the volute 4 and the axis line of the flange 3 are skew lines, and the axis line of the volute 4 and the axis line of the flange 3 are skew perpendicular lines;

[0031] In this application, after the liquid is introduced through the liquid inlet pipe orifice 1, it passes through the threaded section 2 and the flange 3 and enters the volute 4 through the conduit. Under the action of the vortex chamber provided inside the volute 4, it rotates away from the spray hole 5. The threaded section 2 is connected to the end face of the connecting pipe by means of a threaded fit, and the end face of the connecting pipe is also provided with a flange structure adapted to the flange 3. Here, the threaded section 2 and the flange 3 constitute a double-layer fixing method to improve the structural connection strength of the tangential nozzle for the spray tower and ensure that it is not easy to fall off;

[0032] The axis of the volute 4 and the axis of the flange 3 are skew perpendicular lines. Therefore, the recoil force generated during the spraying process in the spray hole 5 on the volute 4 will be converted into a force acting on the threaded section 2. The reaction force of the fluid ejected from the spray hole 5 is consistent with the force of the thread fastening, effectively preventing the nozzle from falling off. The reaction force is used to resist the reverse force generated by the vibration and other external reasons between the threaded section 2 and the connecting pipe during operation; the reaction force of the spray hole 5 is used to prevent the loosening of the threaded section 2 and reduce the influence of the reverse force generated by the vibration of the threaded section 2 on the flange 3, thereby reducing the damage of the flange 3 and ensuring the connection strength of the flange 3, further improving the connection strength of the structure of the tangential nozzle for the spray tower;

[0033] As a preferred implementation mode in this embodiment, the axis of the conduit coincides with the axis of the flange 3, and the conduit is arranged in the tangential direction of the volute 4. When the water flow conveyed by the conduit enters the inside of the volute 4, it will impact the inner ring wall of the volute 4 and finally flow out from the side wall of the volute 4;

[0034] In this embodiment, the conduit is connected to the end of the flange 3 away from the threaded section 2, and the conduit mainly serves as a flow guiding member to complete the transportation of the liquid;

[0035] As a preferred implementation mode in this embodiment, the inner diameter of the liquid inlet pipe orifice 1 is the same as the inner diameter of the threaded section 2, reducing the fluid resistance and effectively preventing blockage;

[0036] As a preferred implementation mode in this embodiment, the spray hole 5 is arranged on one end face of the volute 4, and the position of the end face where the spray hole 5 is arranged is designed according to the thread structure of the threaded section 2 to ensure that the reaction force of the fluid ejected from the spray hole 5 is in the same direction as the thread fastening force of the threaded section 2;

[0037] The center of the spray hole 5 coincides with the axis of the volute 4, and the reaction force generated during the spraying process of the spray hole 5 is better transmitted to the threaded section 2 to resist the reverse force generated by the threaded section 2 due to vibration and other reasons;

[0038] It should be noted that for the foregoing embodiments, for the sake of simple description, they are all expressed as a series of action combinations. However, those skilled in the art should know that the present utility model is not limited by the described action sequence, because according to the present utility model, some steps may be performed in other sequences or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily essential to the present utility model.

[0039] The above embodiments are only used to illustrate the technical solutions of the present utility model, rather than limiting the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, those of ordinary skill in the art can still, without conflict and without creative efforts, combine, add or delete the features in the embodiments of the present utility model according to the situation, or make other adjustments, so as to obtain different technical solutions that essentially do not deviate from the concept of the present utility model, and these technical solutions also belong to the scope of protection of the present utility model.

Claims

1. A tangential nozzle for a spray tower, characterized in that: include: A flange (3), wherein one end of the flange (3) is provided with a threaded section (2), and an end surface of the threaded section (2) away from the flange (3) is provided with a liquid inlet pipe opening (1); the liquid inlet pipe opening (1) serves as a port for liquid to flow in, and liquid entering the liquid inlet pipe opening (1) passes through the flange (3) via the threaded section (2); A volute (4) is provided with a spray hole (5), the volute (4) is arranged on a side of the flange (3) away from the threaded section (2), the volute (4) and the flange (3) are connected via a conduit, and the axis center line of the volute (4) and the axis center line of the flange (3) are skew straight lines.

2. A tangential nozzle for a spray tower according to claim 1, characterized in that: The axis center line of the volute (4) and the axis center line of the flange (3) are skew vertical straight lines.

3. A tangential nozzle for a spray tower as claimed in claim 2, characterized in that: One end of the conduit is connected to the end surface of the flange (3) away from the threaded section (2), and the other end is communicated with the volute (4).

4. A tangential nozzle for a spray tower as claimed in claim 3, characterized in that: The axis center line of the conduit coincides with the axis center line of the flange (3).

5. A tangential nozzle for a spray tower as claimed in claim 4, characterized in that: The conduit is arranged in a tangential direction of the volute (4).

6. A tangential nozzle for a spray tower as claimed in claim 1, characterized in that: The spray hole (5) is arranged on an end surface of the volute (4), and the reaction force of the fluid sprayed out of the spray hole (5) is consistent in direction with the thread tightening force of the threaded section (2).

7. A tangential nozzle for a spray tower as claimed in claim 6, characterized in that: The center of the spray hole (5) coincides with the axis of the volute (4).

8. A tangential nozzle for a spray tower as claimed in claim 1, characterized in that: The inner diameter of the liquid inlet pipe opening (1) is the same as the inner diameter of the threaded section (2).

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