A power plant cooling tower spray device

Abstract

This utility model relates to a spraying device for a power plant cooling tower, including a connecting pipe and a spraying assembly rotatably connected to the connecting pipe. A first magnet is provided at the water outlet end of the connecting pipe, and a bearing is provided above the first magnet. Several sets of sliders are evenly distributed on the outer wall of the bearing. The spraying assembly includes a cylinder, with a water distribution plate fixedly connected to the bottom of the cylinder via several sets of supports. The cylinder has grooves corresponding to the sets of sliders inside. A second magnet is provided at the bottom of the cylinder, located above the first magnet. The first and second magnets have the same polarity on opposite sides. By using the repulsive force of the magnets to provide upward support to the cylinder, the downward impact force of the water is resisted, effectively alleviating the axial force on the bearing. Simultaneously, the radial support is only for guidance, resulting in a smaller radial force on the bearing, effectively reducing bearing wear and increasing bearing life.

Description

Technical Field

[0001] This utility model relates to the field of power plant cooling tower technology, and in particular to a power plant cooling tower spraying device. Background Technology

[0002] As one of the main pieces of equipment in the cold-end system of a power plant, the cooling tower's cooling efficiency directly affects the condenser vacuum, and thus the circulating thermal efficiency of the thermal power unit. When the circulating water that needs to be cooled is sent to the cooling tower, it is then transported to various spray devices by the water distribution pipe. The spray devices evenly spray the water onto the packing material to achieve cooling. The existing high-efficiency spray devices' spray disc components are rotatably connected to the connecting pipe through bearings or slides. The bearings or slides rely on their supporting force to resist the impact of the water, which will aggravate the wear of the bearings or slides and is not conducive to the long-term use of the spray device. Utility Model Content

[0003] The purpose of this invention is to provide a spraying device for power plant cooling towers, thereby solving the aforementioned problems in the prior art.

[0004] The technical solution of this utility model to solve the above-mentioned technical problems is as follows:

[0005] A power plant cooling tower spraying device includes a connecting pipe and a spraying assembly rotatably connected to the connecting pipe. The connecting pipe has a first magnet at the water outlet end. A bearing is provided on the connecting pipe above the first magnet. A plurality of sliders are evenly arranged on the outer wall of the bearing. The spraying assembly includes a cylinder and a water distribution plate located below the cylinder and fixedly connected to the cylinder by a plurality of brackets. The cylinder has grooves corresponding to the plurality of sliders inside. A second magnet is provided at the bottom of the cylinder. The second magnet is located above the first magnet. The polarities of the first magnet and the second magnet are the same on opposite sides.

[0006] The beneficial effects of this utility model are: by using the repulsive force of magnets to provide upward support to the cylinder to resist the downward impact force of water, the axial force on the bearing can be effectively relieved. At the same time, it only provides guidance support in the radial direction, so the radial force on the bearing is small, which can effectively reduce the wear of the bearing and improve the service life of the bearing.

[0007] In addition, the external force on the bearing is smaller, that is, the friction force when the bearing moves is smaller. When water is sprayed onto the water distribution plate, the rotation speed of the water distribution plate will be further increased compared with the existing ordinary bearing structure, the centrifugal force will be greater, the water splash radius will be larger, and the spraying effect will be further improved.

[0008] Based on the above technical solution, the present invention can be further improved as follows.

[0009] Furthermore, both the first and second magnets are circular.

[0010] The beneficial effect of adopting the above-mentioned further solution is that the magnet, being in a ring shape, experiences more uniform force during rotation, which can effectively improve operational stability.

[0011] Furthermore, a first connecting sleeve is provided on the inner side of the first magnet, and the inner wall of the first connecting sleeve is provided with an internal thread. The corresponding position on the outer wall of the connecting pipe is provided with an external thread, and the first magnet is threadedly connected to the connecting pipe through the first connecting sleeve.

[0012] The beneficial effects of adopting the above-mentioned further solution are that the outer wall of the first connecting sleeve is fixedly connected to the first magnet, and the inner wall of the first connecting sleeve is threadedly connected to the outer wall of the connecting pipe, which facilitates quick assembly and maintenance and can effectively reduce installation and adjustment costs.

[0013] Furthermore, the second magnet is fitted into the second connecting sleeve. The inner wall of the second connecting sleeve is provided with an internal thread above the second magnet, and the outer wall of the cylinder is provided with an external thread. The second magnet is threadedly connected to the cylinder through the second connecting sleeve.

[0014] The advantages of adopting the above-mentioned further solution are that the inner wall of the second connecting sleeve is fixed to the outer side of the second magnet, and then connected to the cylinder by a thread. The assembly is easy, the installation is firm, and it is also convenient for later maintenance.

[0015] Furthermore, the water distribution plate is a conical rotating plate, with blades evenly distributed around its circumference.

[0016] The beneficial effect of adopting the above-mentioned further solution is that the conical turntable can guide water to the blades and improve the splashing effect.

[0017] Furthermore, one end of several sets of brackets is fixedly connected to the blade, and the other end is fixedly connected to the outer wall of the second connecting sleeve.

[0018] The advantage of adopting the above-mentioned further solution is that this connection method facilitates assembly and subsequent maintenance.

[0019] Furthermore, a limiting ring is provided on the outer wall of the connecting pipe above the cylinder.

[0020] The beneficial effect of adopting the above-mentioned further solution is that the upper limit position of the shell is limited by the limiting ring and the lower limit position is limited by two magnets of the same polarity that repel each other, which can better ensure the stability of the structure. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of a power plant cooling tower spray device according to the present invention;

[0022] Figure 2 This is an exploded three-dimensional view of the spray device for a power plant cooling tower according to the present invention.

[0023] Figure 3 This is an exploded view of the structure of the cylinder and connecting pipe of the spray device for a power plant cooling tower according to this utility model.

[0024] The attached diagram lists the components represented by each number as follows:

[0025] 1. Connecting pipe; 11. Limiting ring; 12. Edge stop; 2. Spray assembly; 21. Cylinder; 22. Bracket; 23. Water distribution plate; 231. Blade; 24. Slide groove; 25. Second connecting sleeve; 251. Second fixing protrusion; 3. First magnet; 4. Bearing; 41. Slider; 42. Annular limiting sleeve; 5. Second magnet; 6. First connecting sleeve; 61. First fixing protrusion. Detailed Implementation

[0026] The principles and features of this utility model are described below with reference to the accompanying drawings. The examples given are only for explaining this utility model and are not intended to limit the scope of this utility model.

[0027] Example 1

[0028] like Figures 1 to 3 As shown, a power plant cooling tower spraying device includes a connecting pipe 1 and a spraying assembly 2 rotatably connected to the connecting pipe 1. The connecting pipe 1 is provided with a first magnet 3 at the water outlet end. On the connecting pipe 1, a bearing 4 is provided above the first magnet 3. The outer wall of the bearing 4 is uniformly provided with a plurality of sets of sliders 41. The spraying assembly 2 includes a cylinder 21 and a water distribution plate 23 located below the cylinder 21 and fixedly connected to the cylinder 21 by a plurality of sets of brackets 22. The cylinder 21 is provided with a groove 24 corresponding to the plurality of sets of sliders 41. A second magnet 5 is provided at the bottom of the cylinder 21. The second magnet 5 is located above the first magnet 3. The polarities of the first magnet 3 and the second magnet 5 are the same on opposite sides.

[0029] By using the repulsive force of magnets to provide upward support to the cylinder 21, the downward impact force of water can be resisted, which can effectively alleviate the axial force on the bearing 4. At the same time, it only provides guidance support in the radial direction, so the radial force on the bearing 4 is small, which can effectively reduce the wear of the bearing 4 and improve its service life. In addition, the external force on the bearing 4 is small, that is, the friction force when the bearing 4 moves is small. When water is sprayed on the water distribution plate 23, the rotation speed of the water distribution plate 23 will be further increased compared with the existing ordinary bearing 4 structure, the centrifugal force is greater, the water splash radius is larger, and the spraying effect is further improved.

[0030] Example 2

[0031] This embodiment is a further improvement on embodiment 1, as detailed below:

[0032] Both the first magnet 3 and the second magnet 5 are circular.

[0033] The use of a circular magnet results in more even force distribution during rotation, effectively improving operational stability.

[0034] The first magnet 3 is provided with a first connecting sleeve 6 on its inner side. The inner wall of the first connecting sleeve 6 is provided with an internal thread, and the corresponding position on the outer wall of the connecting pipe 1 is provided with an external thread. The first magnet 3 is threadedly connected to the connecting pipe 1 through the first connecting sleeve 6.

[0035] The outer wall of the first connecting sleeve 6 is fixedly connected to the first magnet 3, and the inner wall of the first connecting sleeve 6 is threadedly connected to the outer wall of the connecting pipe 1, which facilitates quick assembly and maintenance and can effectively reduce installation and adjustment costs.

[0036] In a specific implementation, the outer wall of the first connecting sleeve 6 is provided with a first fixing protrusion 61 below the first magnet 3, and the first magnet 3 is limited on the first connecting sleeve 6 by the first fixing protrusion 61.

[0037] The second magnet 5 is fitted inside the second connecting sleeve 25. The inner wall of the second connecting sleeve 25 is provided with an internal thread above the second magnet 5, and the outer wall of the cylinder 21 is provided with an external thread. The second magnet 5 is threadedly connected to the cylinder 21 through the second connecting sleeve 25.

[0038] The inner wall of the second connecting sleeve 25 is fitted and fixed to the outer side of the second magnet 5, and then connected to the cylinder 21 by threads. The assembly is easy, the installation is firm, and it is also convenient for later maintenance.

[0039] In a specific implementation, the inner wall of the second connecting sleeve 25 is provided with a second fixing protrusion 251 located below the second magnet 5, and the second magnet 5 is fixed on the second connecting sleeve 25 by the second fixing protrusion 251.

[0040] Example 3

[0041] This embodiment is a further improvement on embodiment 2, as detailed below:

[0042] The water distribution plate 23 is a conical turntable, and blades 231 are evenly arranged around the circumference of the conical turntable.

[0043] The conical disc can direct water to the blades to further improve the splashing effect.

[0044] Several sets of brackets 22 are fixedly connected at one end to the blade 231 and at the other end to the outer wall of the second connecting sleeve 25.

[0045] It is easy to assemble and maintain later.

[0046] In practice, the second connecting sleeve 25, the bracket 22, the blade 231, and the water distribution plate 23 are integrally formed.

[0047] Example 4

[0048] This embodiment is a further improvement on embodiment 3, as detailed below:

[0049] A limiting ring 11 is provided on the outer wall of the connecting pipe 1 above the cylinder 21.

[0050] The upper limit position of the outer shell is limited by a limiting ring, and the lower limit position is limited by two magnets of the same polarity that repel each other, which can better ensure the stability of the structure.

[0051] In practice, the connecting pipe 1 and the limiting ring 11 are integrally formed.

[0052] Example 5

[0053] This embodiment is a further improvement on embodiment 4, as detailed below:

[0054] Bearing 4 is a plastic bearing 4;

[0055] Plastic bearings are wear-resistant, corrosion-resistant, and produce low noise, making them better suited to humid environments and enabling more stable operation.

[0056] In practice, the connecting pipe 1 is located at the top of the bearing 4 with a limiting flange 12, and the bottom end of the bearing 4 is connected to the connecting pipe 1 by a ring limiting sleeve 42 to fix the inner ring of the bearing.

[0057] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A splash device for a cooling tower of a power plant, characterized in that The device includes a connecting pipe (1) and a splash assembly (2) rotatably connected to the connecting pipe (1). The connecting pipe (1) is provided with a first magnet (3) at the water outlet end. The connecting pipe (1) is provided with a bearing (4) above the first magnet (3). The outer wall of the bearing (4) is provided with several sets of sliders (41). The splash assembly (2) includes a cylinder (21). A water distribution plate (23) is fixedly connected to the bottom of the cylinder (21) through several sets of brackets (22). The cylinder (21) is provided with a sliding groove (24) corresponding to several sets of sliders (41). The bottom of the cylinder (21) is provided with a second magnet (5). The second magnet (5) is located above the first magnet (3). The polarities of the first magnet (3) and the second magnet (5) are the same on opposite sides.

2. The power plant cooling tower spray device according to claim 1, characterized in that, Both the first magnet (3) and the second magnet (5) are circular rings.

3. The power plant cooling tower spray device according to claim 2, characterized in that, The first magnet (3) has a first connecting sleeve (6) on its inner side. The inner wall of the first connecting sleeve (6) has an internal thread, and the outer wall of the connecting pipe (1) is fitted with an external thread at the corresponding location. The first magnet (3) is threadedly connected to the connecting pipe (1) through the first connecting sleeve (6).

4. The power plant cooling tower spray device according to claim 3, characterized in that, The second magnet (5) is fitted into the second connecting sleeve (25). The inner wall of the second connecting sleeve (25) is provided with an internal thread above the second magnet (5). The outer wall of the cylinder (21) is provided with an external thread. The second magnet (5) is threadedly connected to the cylinder (21) through the second connecting sleeve (25).

5. The power plant cooling tower spray device according to claim 4, characterized in that, The water distribution plate (23) is a conical turntable, and blades (231) are evenly provided around the circumference of the conical turntable.

6. The power plant cooling tower spray device according to claim 5, characterized in that, One end of several sets of brackets (22) is fixedly connected to the blade (231), and the other end is fixedly connected to the outer wall of the second connecting sleeve (25).

7. The power plant cooling tower spray device according to claim 1, characterized in that, A limiting ring (11) is provided on the outer wall of the connecting pipe (1) above the cylinder (21).

8. The power plant cooling tower spray device according to any one of claims 1 to 7, characterized in that, The bearing (4) is a plastic bearing.

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