Novel rotary spraying type cooling tower nozzle

Abstract

The utility model provides a novel rotary spraying type cooling tower nozzle which comprises a mounting part and a nozzle part with water outlet holes, the mounting part is provided with a water inlet cavity and a water inlet communicated with the water inlet cavity; the mounting part is further provided with a mounting end and a butt joint port which is arranged at the mounting end and is communicated with the water inlet cavity; the nozzle part is rotationally mounted at the mounting end of the mounting part, all the water outlet holes of the nozzle part are inclined holes inclining in the rotating direction of the nozzle part, and all the water outlet holes in the nozzle part are located in the inner side of the butt joint opening. Water flow is used as power to push the spraying head part to rotate, so that diffusion spraying of the water flow is formed, structure bending caused by long-term impact type spraying of the water flow is avoided, substances which cannot pass through the water outlet holes can be filtered out, and the problem that filler and the spraying head are blocked can be prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of spraying equipment, in particular to a novel rotary spraying cooling tower nozzle. Background Art

[0002] The cooling tower nozzle is a necessary device for spraying and cooling inside the cooling tower. It is installed in the water collecting tray of the cooling tower, and the sprayed water flow falls into the cooling tower filler to achieve the purpose of cooling. However, the spraying methods of existing cooling tower nozzles are basically impact type. Long-term use of this spraying method will cause the structure to bend and reduce the heat dissipation capacity of the equipment. In addition, since there is generally no filtering device at the water inlet of the existing cooling tower, dirt is likely to enter the nozzle and filler during long-term use, resulting in blockage and further reducing the heat dissipation capacity of the cooling tower. Content of the Utility Model

[0003] In order to solve the technical problems existing in the background art, the utility model provides a novel rotary spraying cooling tower nozzle.

[0004] A novel rotary spraying cooling tower nozzle provided by the utility model includes: a mounting part and a spraying head with water outlet holes; the mounting part has a water inlet cavity, a water inlet connected to the water inlet cavity and with a diameter not greater than the aperture of the water outlet hole; the mounting part also has a mounting end and a docking port arranged at the mounting end and communicated with the water inlet cavity; the spraying head is rotatably mounted at the mounting end of the mounting part, and all its water outlet holes are inclined holes along its rotation direction, and all the water outlet holes on the spraying head are located inside the docking port.

[0005] Preferably, the water inlet is a strip-shaped opening with a width not greater than the aperture of the water outlet hole, and extends from near the mounting end to away from the mounting end.

[0006] Preferably, the mounting part includes a main body part and a plug-in part integrally formed at one end of the main body part. The plug-in part is in the shape of a frustum of a cone, its large head end is connected to the main body part, and its small head end forms the mounting end.

[0007] Preferably, the peripheral wall of the plug-in part is provided with lines, and on the sectional view of the plug-in part along its diameter, the lines are serrated.

[0008] Preferably, the main body part is a cylinder coaxial with the plug-in part.

[0009] Preferably, a central hole is provided at the central part of the spraying head, and its water outlet holes are circumferentially distributed on the outer periphery of the central hole; a core shaft is provided at the mounting end, one end of the core shaft extends from the docking port into the interior of the mounting part and is fixed to the mounting part, and the other end of the core shaft is rotatably assembled in the central hole of the spraying head.

[0010] Preferably, the other end of the core shaft passes through the central hole of the spraying head and the axial movement of the spraying head is restricted by a limit retaining ring installed at its end.

[0011] Preferably, the limiting retaining ring is threadedly connected to the mandrel.

[0012] Preferably, a graphite gasket is provided between the limiting retaining ring and the spray head.

[0013] In the present utility model, the interior of the mounting portion has a chamber to form a water inlet chamber. The side wall of the mounting portion is provided with a water inlet communicating with the water inlet chamber, and the diameter of the water inlet is not greater than the diameter of the water outlet hole, so as to ensure that all substances that can enter the water inlet chamber through the water inlet can flow out through the water outlet holes of the spray head, thereby preventing problems such as clogging of the packing and the nozzle. At the same time, the spray head is rotatably mounted on the mounting end of the mounting portion, and all the water outlet holes on the spray head are inclined holes inclined along the rotation direction, and all the water outlet holes on the spray head are located inside the docking port and are rotationally symmetrically arranged around the rotation center line of the spray head. Using water flow as the driving force to push the spray head to rotate, so as to form a diffused spray of the water flow, thereby avoiding the bending of the structure caused by the long-term impact spraying of the water flow. Description of the Drawings

[0014] Figure 1 is a schematic view of the external structure of a new type of rotating spray cooling tower nozzle proposed by the present utility model;

[0015] Figure 2 is a schematic view of the internal structure of a new type of rotating spray cooling tower nozzle proposed by the present utility model;

[0016] Figure 3 is a schematic view of the positional relationship between the water outlet holes and the central hole on the spray head of a new type of rotating spray cooling tower nozzle proposed by the present utility model. Detailed Embodiments

[0017] Referring to Figures 1-3 , a new type of rotating spray cooling tower nozzle proposed by the present utility model includes: a mounting portion 1 and a spray head 3 with water outlet holes 2, wherein:

[0018] The interior of the mounting portion 1 has a chamber to form a water inlet chamber 4. The side wall of the mounting portion 1 is provided with a water inlet 5 communicating with the water inlet chamber 4, and the diameter of the water inlet 5 is not greater than the diameter of the water outlet holes 2. To ensure that all substances that can enter the water inlet chamber 4 through the water inlet 5 can flow out through the water outlet holes 2 of the spray head 3.

[0019] The mounting portion 1 has a mounting end, and the mounting end has a docking port communicating with the water inlet chamber 4. The spray head 3 is rotatably mounted on the mounting end of the mounting portion 1. All the water outlet holes 2 on the spray head 3 are inclined holes inclined along the rotation direction, and all the water outlet holes 2 on the spray head 3 are located inside the docking port, so that the oblique impact force generated when the water flow enters the water outlet holes 2 then pushes the spray head 3 to rotate. The specific usage method of this cooling tower nozzle is as follows:

[0020] When in use, insert the cooling tower nozzle into the hole position of the cooling tower water collecting tray. When the water level in the cooling tower water collecting tray is higher than the lowest position of the water inlet hole, the cooling tower nozzle starts to intake water. The diameter of the water inlet 5 is not larger than the diameter of the water outlet hole 2, so that the substances entering the water inlet cavity 4 can all flow out through the water outlet hole 2 of the nozzle head 3, thus avoiding the problem of blockage of the cooling tower nozzle. During the process of water flowing into the cooling tower nozzle and flowing out along the water outlet hole 2, the flowing water pushes the nozzle head 3 to rotate in the opposite direction, thereby driving the water flow to spread and spray.

[0021] Specifically: a central hole 9 is provided at the central part of the nozzle head 3, and its water outlet holes 2 are circumferentially distributed on the outer periphery of the central hole 9; a core shaft 6 is provided at the installation end. One end of the core shaft 6 extends from the docking port into the interior of the installation part 1 and is fixed to the installation part 1, and the other end of the core shaft 6 is rotatably assembled in the central hole 9 of the nozzle head 3 to form the rotational assembly of the nozzle head 3 at the installation end, and enable the nozzle head 3 to rotate around the core shaft 6.

[0022] Furthermore, the other end of the core shaft 6 passes through the central hole 9 of the nozzle head 3 and the axial movement of the nozzle head 3 is restricted by a limit retaining ring 7 installed at its end. This structural design facilitates the installation and disassembly of the nozzle head 3. When disassembling and assembling the nozzle head 3, only need to remove the limit retaining ring 7.

[0023] Furthermore, the limit retaining ring 7 is threadedly connected to the core shaft 6. By adjusting the screwing-in amount of the limit retaining ring 7 on the core shaft 6, the rotational tightness of the nozzle head 3 can be adjusted.

[0024] Furthermore, a graphite gasket 8 is provided between the limit retaining ring 7 and the nozzle head 3. The graphite gasket 8 can not only play a lubricating role, but also play a certain sealing effect.

[0025] In addition, the water inlet 5 in this embodiment is a strip-shaped opening with a width not larger than the diameter of the water outlet hole 2, and extends from near the installation end to the direction away from the installation end, so that the higher the water level in the cooling tower water collecting tray, the greater the water intake of the water inlet 5.

[0026] Furthermore, the installation part 1 in this embodiment includes a main body part 11 and a plug-in part 12 integrally formed at one end of the main body part 11. The plug-in part 12 is in the shape of a frustum of a cone, its large head end is connected to the main body part 11, and its small head end forms the installation end. During installation, directly insert the plug-in part 12 into the hole position of the cooling tower water collecting tray, and the frustum-shaped plug-in part 12 can adapt to hole positions with different diameters.

[0027] In this embodiment, the peripheral wall of the plug-in part 12 is provided with patterns, and on the cross-section of the plug-in part 12, the patterns are serrated to ensure the stability of the plug-in part 12 when inserted into the hole position.

[0028] The main body part 11 in this embodiment is a cylinder coaxial with the insertion part 12.

[0029] As can be seen from the above, in the present utility model, the installation part 1 has a cavity inside to form a water inlet cavity 4. The side wall of the installation part 1 is provided with a water inlet 5 communicating with the water inlet cavity 4, and the caliber of the water inlet 5 is not larger than the aperture of the water outlet hole 2, so as to ensure that all substances entering the water inlet cavity 4 through the water inlet 5 can flow out through the water outlet hole 2 of the spray head 3, thereby preventing the problems of blocking the packing and the spray head. At the same time, the spray head 3 is rotatably installed at the installation end of the installation part 1, and all the water outlet holes 2 on the spray head 3 are inclined holes along the rotation direction, and all the water outlet holes 2 on the spray head 3 are located inside the docking port and are rotationally symmetrically arranged around the rotation center line of the spray head 3. Using water flow as power to drive the spray head 3 to rotate, so as to form a diffused spray of water flow, thereby avoiding the bending of the structure caused by the long-term impact spraying of water flow.

[0030] The above is only a preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, making equivalent replacements or changes, should be covered within the protection scope of the present utility model.

Claims

1. A new type of rotary spray cooling tower nozzle, characterized in that: include: The mounting portion (1) comprises a nozzle head (3) with a water outlet hole (2); the mounting portion (1) comprises a water inlet cavity (4) and a water inlet (5) which is in communication with the water inlet cavity (4) and has a diameter not greater than that of the water outlet hole (2); the mounting portion (1) further comprises a mounting end and a docking port which is arranged at the mounting end and is in communication with the water inlet cavity (4); the nozzle head (3) is rotatably mounted on the mounting end of the mounting portion (1), and all of its water outlet holes (2) are inclined holes inclined along the rotation direction thereof, and all of the water outlet holes (2) on the nozzle head (3) are located on the inner side of the docking port.

2. The novel rotary spray cooling tower nozzle according to claim 1 is characterized in that: The water inlet (5) is a strip-shaped opening with a width no greater than the diameter of the water outlet hole (2), and extends from a direction close to the installation end to a direction away from the installation end.

3. The novel rotary spray cooling tower nozzle according to claim 1 is characterized in that: The mounting portion (1) comprises a main body portion (11) and a plug-in portion (12) integrally formed at one end of the main body portion (11); the plug-in portion (12) is in the shape of a truncated cone, with a large end connected to the main body portion (11) and a small end forming a mounting end.

4. The novel rotary spray cooling tower nozzle according to claim 3 is characterized in that: The peripheral wall of the plug-in portion (12) is provided with lines, and the lines are sawtooth-shaped on the cut surface of the plug-in portion (12).

5. The novel rotary spray cooling tower nozzle according to claim 3 is characterized in that: The main body (11) is a cylinder coaxial with the plug-in portion (12).

6. The novel rotary spray cooling tower nozzle according to any one of claims 1 to 5, characterized in that: A central hole (9) is provided at the central part of the nozzle head (3), and the water outlet holes (2) are evenly distributed on the outer periphery of the central hole (9) in the circumferential direction; a core shaft (6) is provided at the mounting end, and the core shaft (6) is located at the central part of the docking hole, and one end of the core shaft (6) extends from the docking port to the inside of the mounting part (1) and is fixed to the mounting part (1), and the other end of the core shaft (6) is rotatably assembled in the central hole (9) of the nozzle head (3).

7. The novel rotary spray cooling tower nozzle according to claim 6 is characterized in that: The other end of the core shaft (6) passes through the central hole (9) of the spray head (3) and is restricted from axial movement of the spray head (3) by a limit ring (7) installed at the end thereof.

8. The novel rotary spray cooling tower nozzle according to claim 7 is characterized in that: The limit retaining ring (7) is threadedly connected to the core shaft (6).

9. The novel rotary spray cooling tower nozzle according to claim 7 is characterized in that: A graphite pad (8) is provided between the limit retaining ring (7) and the nozzle head (3).

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