Cooling tower liquid distribution nozzle, cooling tower and air conditioning system

Abstract

The utility model discloses a cooling tower liquid distribution spray head, a cooling tower and an air-conditioning system, the cooling tower liquid distribution spray head comprises a cylindrical part, one axial end of the cylindrical part is provided with an inlet for introducing a medium to be cooled, the circumferential surface of the cylindrical part is provided with a plurality of discharge hole layers which are used for discharging the medium to be cooled and are arranged along the axial direction, and the discharge hole layers are communicated with the cylindrical part; each discharge hole layer comprises a plurality of discharge holes which are formed in the circumferential direction of the cylindrical part; the movable part is movably arranged in the cylindrical part in the axial direction and is configured to bear the pressure of the medium introduced from the inlet of the cylindrical part, and the movable part is configured to prevent the medium introduced from the inlet of the cylindrical part from flowing towards the side, away from the inlet, of the movable part; and the elastic part is configured to push the movable part towards the inlet in the axial direction, and the movable part is configured to overcome the elastic force of the elastic part to move in the direction away from the inlet along with the increase of the pressure of the medium introduced into the inlet, so that the number of the discharge holes between the movable part and the inlet is increased.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning technology, specifically to a cooling tower liquid distribution nozzle, a cooling tower, and an air conditioning system. Background Technology

[0002] The cooling tower includes a liquid distributor and multiple liquid distribution nozzles mounted on the liquid distributor. The liquid distribution nozzles have inlets that communicate with the liquid distributor to introduce a medium to be cooled (e.g., water) and outlets that discharge the medium. The multiple outlets are arranged circumferentially along the liquid distribution nozzles to distribute the medium to be cooled onto the cooling structure that cools the medium.

[0003] To meet demand and save energy, most cooling towers are equipped with variable frequency cooling pumps that output the cooled medium from the aforementioned cooling structure. The variable frequency cooling pump automatically adjusts its power according to the heat dissipation of the air conditioning system to adjust the output of the cooled medium (such as cooling water). When the output of the cooling tower changes, it causes changes in the liquid level inside the cooling tower distributor (distribution plate), which in turn causes changes in the inlet pressure of the distribution nozzles, resulting in instability in the spray area of ​​the nozzles. When the inlet pressure is high, the spray area of ​​the nozzles is relatively large, and since the nozzle position is fixed, there will be overlap in the spray area. When the inlet pressure is low, the spray area of ​​the nozzles is small, and multiple waterless areas will appear, affecting heat exchange. Utility Model Content

[0004] The present invention aims to provide a cooling tower liquid distribution nozzle, a cooling tower, and an air conditioning system to improve the problem in the prior art where the spraying area of ​​the liquid distribution nozzle changes significantly due to changes in the inlet liquid pressure.

[0005] According to one aspect of the present invention, a cooling tower liquid distribution nozzle is provided, the cooling tower liquid distribution nozzle comprising:

[0006] A cylindrical component has an inlet at one axial end for introducing a medium to be cooled, and a plurality of discharge hole layers arranged axially on the circumferential surface of the cylindrical component for discharging the medium to be cooled, each discharge hole layer including a plurality of discharge holes arranged circumferentially along the cylindrical component.

[0007] A movable component is axially movably disposed within a cylindrical component and configured to withstand the pressure of a medium introduced at the inlet of the cylindrical component. The movable component is configured to block the medium introduced at the inlet of the cylindrical component from flowing toward the side of the movable component away from the inlet.

[0008] The elastic member is configured to push the movable member axially toward the inlet. The movable member is configured to overcome the elastic force of the elastic member and move away from the inlet as the pressure of the medium introduced into the inlet increases, so as to increase the number of discharge holes between the movable member and the inlet.

[0009] In some embodiments, the cooling tower liquid distribution nozzle further includes a plurality of dispersing components arranged axially and extending along the outer periphery of the cylindrical component. The plurality of dispersing components are disposed in correspondence with a plurality of discharge hole layers and are respectively located on the side of the respective discharge hole layer away from the inlet. The dispersing components are configured to guide the medium discharged from the corresponding discharge hole layer toward the outer edge of the dispersing component away from the outer periphery of the cylindrical component. The outer diameter of the plurality of dispersing components gradually decreases in the direction away from the inlet.

[0010] In some embodiments, a dispersion channel is provided on the surface of the dispersion component near the inlet to guide the medium discharged from the discharge hole toward the outer edge of the dispersion component, and a plurality of dispersion channels are arranged circumferentially along the cylindrical component.

[0011] In some embodiments, the dispersion channel is radially inclined or bent relative to the cylindrical component.

[0012] In some embodiments, the dispersing channels on the dispersing component are provided in a one-to-one correspondence with the discharge holes.

[0013] At least a portion of the dispersing component is provided with a medium flow hole that extends through the axis, and the medium flow hole of the dispersing component is closer to the outer peripheral surface of the cylindrical component than the outer edge of the dispersing component located on the side of the dispersing component away from the inlet.

[0014] In some embodiments, a plurality of medium flow holes are arranged circumferentially along the cylindrical component; the medium flow holes are disposed within the dispersion channel of the dispersion component.

[0015] In some embodiments, a gap is provided between the outer peripheral surface of the movable component and the inner peripheral surface of the cylindrical component to allow the medium to pass through, and the end of the cylindrical component away from the inlet is provided with an outlet for discharging the medium.

[0016] In some embodiments, the cooling tower liquid spray nozzle further includes a guide member disposed within a cylindrical component and configured to guide a movable component to move axially. The movable component includes a disc-shaped body perpendicular to the axial direction and a guide hole disposed on the disc-shaped body. The guide member passes through the guide hole, and the movable component is configured to move along the guide member.

[0017] In some embodiments, the inner diameter of the guide hole is larger than the outer diameter of the guide member, and the end of the cylindrical member furthest from the inlet forms the outlet of the output medium.

[0018] In some embodiments, a first snap-fit ​​structure is provided on the outer peripheral surface of the end of the cylindrical component with an inlet. The cooling tower liquid distribution nozzle also includes an end cap provided on the end of the cylindrical component with an inlet. The end cap includes a second snap-fit ​​structure provided on the outside of the cylindrical component and adapted to the first snap-fit ​​structure, and a third snap-fit ​​structure provided on the side of the second snap-fit ​​structure away from the cylindrical component. The third snap-fit ​​structure is used to install the cooling tower liquid distribution nozzle on the mounting hole of the supporting component that carries the cooling tower liquid distribution nozzle.

[0019] In some embodiments, the end cap further includes a cylindrical portion sleeved within the cylindrical component and a flange disposed at one end of the cylindrical portion and protruding radially outward along the cylindrical portion. The flange has a protrusion on the side facing the cylindrical component, and the second snap-fit ​​structure and the third snap-fit ​​structure are respectively located on the side of the protrusion closer to the cylindrical component and the side farther from the cylindrical component.

[0020] According to another aspect of the present invention, a cooling tower is also provided, which includes the above-described cooling tower liquid distribution nozzle.

[0021] According to another aspect of the present invention, an air conditioning system is also provided, which includes the cooling tower described above.

[0022] By applying the technical solution of this application, the nozzle adjusts the position of the moving part according to the pressure change of the introduced medium, thereby adjusting the number of discharge holes communicating with the inner cavity of the circulating medium between the inlet of the cylindrical part and the moving part, or the total flow area of ​​the discharge holes communicating with the inner cavity, so as to improve the problem of large changes in the spray distance caused by the pressure change of the introduced medium, and improve the problem of large changes in the spray area caused by the change of the liquid inlet pressure in the liquid distribution nozzle in the prior art.

[0023] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 A three-dimensional structural schematic diagram of a cooling tower liquid distribution nozzle according to an embodiment of the present invention is shown.

[0026] Figure 2 A schematic diagram of the split structure of the cooling tower liquid distribution nozzle according to an embodiment of the present invention is shown.

[0027] Figure 3 A front view structural schematic diagram of a cooling tower liquid distribution nozzle according to an embodiment of the present invention is shown.

[0028] Figure 4 A cross-sectional view of a cooling tower liquid distribution nozzle according to an embodiment of the present invention is shown.

[0029] Figure 5 This diagram shows a three-dimensional structural schematic of the assembly of the cylindrical component, the dispersing component, the guiding component, and the connecting component of the cooling tower liquid distribution nozzle according to an embodiment of the present invention.

[0030] Figure 6 The diagram shows a front view of the assembly of the cylindrical component, the dispersing component, the guiding component, and the connecting component of the cooling tower liquid distribution nozzle according to an embodiment of the present invention.

[0031] Figure 7 This diagram shows a cross-sectional view of the assembly of the cylindrical component, the dispersing component, the guiding component, and the connecting component of the cooling tower liquid distribution nozzle according to an embodiment of the present invention.

[0032] Figure 8 A schematic diagram of the structure of the first dispersing component of the cooling tower liquid spray nozzle according to an embodiment of the present invention is shown.

[0033] Figure 9 A schematic diagram of the structure of the second dispersion component of the cooling tower liquid distribution nozzle according to an embodiment of the present invention is shown.

[0034] Figure 10 A schematic diagram of the third dispersion component of the cooling tower liquid distribution nozzle according to an embodiment of the present invention is shown.

[0035] Figure 11 A three-dimensional structural schematic diagram of the movable component of the cooling tower liquid distribution nozzle according to an embodiment of the present invention is shown.

[0036] Figure 12 A front view structural schematic diagram of the movable component of the cooling tower liquid distribution nozzle according to an embodiment of the present invention is shown.

[0037] Figure 13 A cross-sectional view of the moving parts of the cooling tower liquid distribution nozzle according to an embodiment of the present invention is shown.

[0038] Figure 14 A three-dimensional structural schematic diagram of the inlet guide component of the cooling tower liquid distribution nozzle according to an embodiment of the present invention is shown.

[0039] Figure 15 The diagram shows a front view of the inlet guide component of the cooling tower liquid distribution nozzle according to an embodiment of the present invention.

[0040] Figure 16 A cross-sectional view of the inlet guide component of the cooling tower liquid distribution nozzle according to an embodiment of the present invention is shown.

[0041] Figure 17 A three-dimensional structural schematic diagram of the elastic component of the cooling tower liquid distribution nozzle according to an embodiment of the present invention is shown.

[0042] Figure 18 A front view structural schematic diagram of the elastic component of the cooling tower liquid distribution nozzle according to an embodiment of the present invention is shown.

[0043] Figure 19 The diagram shows a front view of the distribution plate of the cooling tower liquid distribution nozzle according to an embodiment of the present invention.

[0044] Figure 20 A schematic diagram of the working state of the cooling tower liquid distribution nozzle when the pressure of the liquid distribution plate is the first pressure according to an embodiment of the present invention is shown.

[0045] Figure 21 A schematic diagram of the working state of the cooling tower liquid distribution nozzle when the pressure of the liquid distribution plate is the second pressure according to an embodiment of the present invention is shown.

[0046] Figure 22 A schematic diagram of the working state of the cooling tower liquid distribution nozzle when the pressure of the liquid distribution plate is the third pressure according to an embodiment of the present invention is shown.

[0047] In the picture:

[0048] 1. Cylindrical component; 11. Discharge port; 12. First snap-fit ​​structure; 2. Dispersing component; 21. Dispersing channel; 22. Medium flow hole; 3. Movable component; 31. Disc-shaped body; 32. Sleeve; 33. Guide hole; 4. Elastic component; 5. Guide component; 6. End cap; 61. Second snap-fit ​​structure; 62. Third snap-fit ​​structure; 63. Cylindrical part; 64. Protruding edge; 65. Protrusion; 7. Connecting component; 8. Liquid distributor. Detailed Implementation

[0049] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0050] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0051] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0052] In the description of this application, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicating orientation or positional relationships, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first," "second," and "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. "Vertical" is not vertical in the strict sense, but within the allowable tolerance range. "Parallel" is not parallel in the strict sense, but within the allowable tolerance range.

[0053] The directional terms used in the following description refer to the directions shown in the figures and are not intended to limit the specific structure of this application. It should also be noted in the description of this application that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0054] Unless otherwise specified, the terms "comprising" and "including" as used in this application can be open-ended or closed-ended. For example, "comprising" and "including" can mean that other components not listed may also be included, or that only the listed components may be included.

[0055] Unless otherwise specified, the term "or" is inclusive in this application. For example, the phrase "A or B" means "A, B, or both A and B". More specifically, the condition "A or B" is satisfied by any of the following conditions: A is true (or exists) and B is false (or does not exist); A is false (or does not exist) and B is true (or exists); or both A and B are true (or exist).

[0056] See this application Figures 1 to 7 The cooling tower liquid spray nozzle of this embodiment includes a cylindrical component 1, a movable component 3, and an elastic component 4.

[0057] One end of the cylindrical component 1 is provided with an inlet for introducing the medium to be cooled. The circumferential surface of the cylindrical component 1 is provided with a plurality of discharge hole layers for discharging the medium to be cooled and arranged along the axial direction. Each discharge hole layer includes a plurality of discharge holes 11 arranged along the circumference of the cylindrical component 1.

[0058] The movable part 3 is axially movable inside the cylindrical part 1 and is configured to withstand the pressure of the medium introduced into the inlet of the cylindrical part 1. The movable part 3 is configured to block the medium introduced into the inlet of the cylindrical part 1 from flowing to the side of the movable part 3 away from the inlet.

[0059] The elastic member 4 is configured to push the movable member 3 axially toward the inlet. The movable member 3 is configured to overcome the elastic force of the elastic member 4 and move away from the inlet as the pressure of the medium introduced into the inlet increases, so as to increase the number of discharge holes 11 or the discharge area of ​​the discharge holes between the movable member 3 and the inlet (the area of ​​the movable member 3 blocking a discharge hole 11 changes during the movement).

[0060] In the technical solution of this application, as the pressure of the medium introduced into the inlet of the cylindrical component 1 increases, the number of discharge holes 11 communicating with the inner cavity of the circulating medium between the inlet of the cylindrical component 1 and the movable component 3 increases, or the total flow area of ​​the discharge holes 11 communicating with the inner cavity (the sum of the flow areas of all discharge holes communicating with the inner cavity between the inlet of the cylindrical component 1 and the movable component 3, wherein the flow area of ​​the discharge holes 11 partially blocked by the movable component 3 is the area of ​​the unclosed part) increases. Correspondingly, the pressure of the medium discharged from each discharge hole 11 decreases relative to not changing the number of discharge holes 11 or the total flow area. Therefore, the increase in medium jet distance caused by the increase in the pressure of the introduced medium can be balanced.

[0061] As the pressure of the medium introduced into the inlet of the cylindrical component 1 decreases, the number of discharge holes 11 communicating with the inner cavity of the circulating medium between the inlet of the cylindrical component 1 and the moving component 3 decreases, or the total flow area of ​​the discharge holes 11 decreases. Consequently, the pressure of the medium discharged from each discharge hole 11 increases relative to the number of discharge holes 11 or the total flow area without changing. Therefore, the decrease in medium injection distance caused by the decrease in the pressure of the introduced medium can be balanced.

[0062] In summary, the nozzle of this embodiment adjusts the position of the movable part 3 according to the pressure change of the introduced medium, thereby adjusting the number of discharge holes 11 communicating with the inner cavity of the circulating medium between the inlet of the cylindrical part 1 and the movable part 3, or the total flow area of ​​the discharge holes 11 communicating with the inner cavity, so as to improve the problem of large changes in the spray distance caused by the pressure change of the introduced medium, and improve the problem of large changes in the spray area caused by the change of the liquid inlet pressure in the liquid distribution nozzle in the prior art.

[0063] In this embodiment, with the cooling tower liquid spray nozzle installed, the axial direction of the cylindrical component 1 is vertical. The inlet of the cylindrical component 1 is located at the top of the cylindrical component 1. The movable component 3 moves vertically inside the cylindrical component 1, thereby changing the distance between the movable component 3 and the inlet of the cylindrical component 1, and thus changing the number of discharge holes 11 communicating with the inner cavity of the circulating medium between the inlet of the cylindrical component 1 and the movable component 3, or the total flow area of ​​the discharge holes 11 communicating with the inner cavity.

[0064] The cooling tower liquid spray nozzle also includes a plurality of dispersing components 2 arranged axially and extending along the outer periphery of the cylindrical component 1. The plurality of dispersing components 2 are arranged one-to-one with a plurality of discharge hole layers and are located on the side of the corresponding discharge hole layer away from the inlet. The dispersing components 2 are configured to guide the medium discharged from the corresponding discharge hole layer toward the outer edge of the dispersing component 2 away from the outer periphery of the cylindrical component 1. The outer diameter of the plurality of dispersing components 2 gradually decreases in the direction away from the inlet.

[0065] The dispersing component 2 is disposed on the side of the corresponding discharge hole layer away from the cylindrical component 1, and is located on the side of another discharge hole layer adjacent to the corresponding discharge hole layer near the inlet. That is, the dispersing component 2 is disposed between the corresponding discharge hole layer and another discharge hole layer adjacent to the corresponding discharge hole layer in the axial direction of the cylindrical component 1. The aforementioned corresponding discharge hole layer and the aforementioned other discharge hole layer are vertically adjacent and arranged sequentially from top to bottom.

[0066] See Figure 6 and Figure 7 In this embodiment, the dispersing component 2 of the nozzle includes a first dispersing component, a second dispersing component, and a third dispersing component arranged sequentially in a direction away from the inlet of the cylindrical component 1. Figures 8 to 9The diagram shows a top view of the first, second, and third dispersing components. These components are arranged sequentially from top to bottom. The outer diameters of the first, second, and third dispersing components decrease sequentially.

[0067] The outer diameters of the multiple dispersing components 2 decrease sequentially along the direction away from the inlet of the cylindrical component 1. The multiple dispersing components 2 respectively distribute the medium discharged from the corresponding discharge hole layer to different distances from the cylindrical component 1, which is beneficial to improve the dispersibility of the liquid distribution nozzle, improve the heat dissipation efficiency of the medium, and also improve the cooling efficiency of the air conditioning system.

[0068] join Figures 5 to 10 The surface of the dispersing component 2 near the inlet is provided with a dispersing channel 21 that guides the medium discharged from the discharge hole 11 toward the outer edge of the dispersing component 2. Multiple dispersing channels 21 are arranged circumferentially along the cylindrical component 1. The multiple dispersing channels 21 disperse the medium to different circumferential positions of the cylindrical component 1 in a predetermined direction, which helps to improve the uniformity of medium dispersion and avoids concentration caused by random flow of the medium, thereby improving the uniformity of medium dispersion.

[0069] See Figure 5 as well as Figures 8 to 10 The dispersion channel 21 is inclined or bent radially relative to the cylindrical component 1. The medium discharged from the dispersion channel 21 tends to move circumferentially along the dispersion component 2, which is beneficial to control the range and uniformity of medium dispersion (when the direction of the dispersion channel 21 is consistent with the radial direction, there may be blank areas between two adjacent dispersion channels 21 where the medium is not distributed).

[0070] The dispersing component 2 is an annular disc-shaped structure fitted outside the cylindrical component 1. On the side (i.e. the upper side) of the dispersing component 2 adjacent to the inlet of the cylindrical component 1, there is a strip-shaped protrusion extending from the outer periphery of the cylindrical component 1 to the outer edge of the dispersing component 21. Multiple strip-shaped protrusions are arranged along the circumference of the cylindrical component 1, and the dispersing channel 21 is formed between two adjacent strip-shaped protrusions.

[0071] The dispersing channels 21 on the dispersing component 2 are arranged in a one-to-one correspondence with the discharge holes 11. Each discharge hole 11 is provided with a corresponding dispersing channel 21, which helps to reduce the width of each dispersing channel 21. Compared with the problem that the medium is easy to accumulate in the wide dispersing channel 21, the provision of a dispersing channel 21 for each discharge hole 11 helps to improve the uniformity of the distributed medium.

[0072] At least the portion of the dispersing component 2 near the inlet of the cylindrical component 1 is provided with a medium flow hole 22 that extends through the axis. The medium flow hole 22 of the dispersing component 2 is closer to the outer peripheral surface of the cylindrical component 1 than the outer edge of the dispersing component 2 located on the side of the dispersing component 2 away from the inlet (i.e., lower).

[0073] See Figures 19 to 22 The dispersion component 2 located near the inlet (i.e., the upper part) of the cylindrical component 1 is provided with a medium flow hole 22 that penetrates the dispersion component 2. Part of the medium in the dispersion component 2 flows to the outer edge of the dispersion component 2 away from the cylindrical component 1, and the other part flows through the medium flow hole 22 to the dispersion component 2 of the lower layer. Since the outer diameter of the dispersion component 2 of the lower layer is smaller than that of the dispersion component 2 of the upper layer, even when only the medium is discharged from the upper medium hole layer, the medium can be dispersed by multiple dispersion components 2 at different distances from the specific cylindrical component 1, which improves the uniformity of medium dispersion and thus improves the heat exchange efficiency of the medium.

[0074] Multiple medium flow holes 22 are arranged around the circumference of the cylindrical component 1 so that medium flows out of the dispersion component 2 to the lower side from multiple circumferential directions of the dispersion component 2, thereby improving the uniformity of medium distribution and thus improving the heat dissipation efficiency of the medium.

[0075] The medium flow hole 22 is provided in the dispersion channel 21 of the dispersion component 2. The medium discharged from the discharge hole 11 flows more concentratedly in the dispersion channel 21. The medium flow hole 22 is provided in the middle so that the medium flowing through the dispersion channel 21 can flow smoothly to the dispersion component 2 of the lower layer.

[0076] The upper surface of the dispersing component 2 is provided with multiple strip-shaped protrusions arranged circumferentially along the cylindrical component 1, and a dispersing channel 21 is formed between two adjacent strip-shaped protrusions. The width of the dispersing channel 21 gradually increases so that the medium is gradually dispersed in the dispersing channel 21 to improve the uniformity of the distributed medium.

[0077] In some embodiments, the medium flow hole 22 is provided at the upstream end of the dispersion channel 21 near the cylindrical member 1 so that more medium can be diverted to the dispersion member 2 on the lower side, thereby making the medium uniform in the direction away from the cylindrical member 1 (i.e., the radial direction of the cylindrical member 1).

[0078] A gap is provided between the outer peripheral surface of the movable component 3 and the inner peripheral surface of the cylindrical component 1 to allow the medium to pass through. The end of the cylindrical component 1 away from the inlet has an outlet for discharging the medium. The medium is also distributed downward inside the cylindrical component 1, which further improves the uniformity of the medium in the radial direction away from the cylindrical component 1.

[0079] See Figure 2 as well as Figures 11 to 13The cooling tower liquid distribution nozzle also includes a guide member 5 disposed within the cylindrical component 1 and configured to guide the movable component 3 to move axially. The movable component 3 includes a disc-shaped body 31 perpendicular to the axial direction and a guide hole 33 disposed on the disc-shaped body 31. The guide member 5 passes through the guide hole 33, and the movable component 3 is configured to move along the guide member 5. The guide member 5 is a rod-shaped component extending along the axial direction of the cylindrical component 1 to ensure that the movable component 3 moves smoothly within the cylindrical component 1 to adjust the number of discharge holes 11 communicating with the inner cavity of the flow medium between the inlet of the cylindrical component 1 and the movable component 3, or the total flow area of ​​the discharge holes 11 communicating with the inner cavity, thereby improving the problem of large changes in the spray distance caused by changes in the pressure of the introduced medium, and improving the problem of large changes in the spray area caused by changes in the inlet pressure of the liquid distribution nozzle in the prior art.

[0080] The inner diameter of the guide hole 33 is larger than the outer diameter of the guide member 5, so that a portion of the medium can flow downwards towards the movable member 3, and the end of the cylindrical member 1 furthest from the inlet forms the outlet for the output medium. The medium is also distributed downwards within the cylindrical member 1, further improving the uniformity of the medium in the radial direction away from the cylindrical member 1.

[0081] Furthermore, the movable component 3 also includes a sleeve 32 disposed on the side of the disc-shaped body 31 away from the inlet of the cylindrical component 1. The sleeve 32 is fitted onto the outside of the guide hole 33, and the inner diameter of the sleeve 32 is larger than the diameter of the guide hole 33. A rod-shaped guide component 5 is fitted inside the sleeve 32 and passes through the guide hole 33. One end of the rod-shaped guide component 5 away from the inlet of the cylindrical component 1 is connected to the cylindrical component 1 via a connecting component 7 to fix it inside the cylindrical component 1. Multiple connecting components 7 are arranged circumferentially along the guide component 5, with one end of each connecting component 7 connected to the guide component 5 and the other end connected to the inner wall of the cylindrical component 1. Optionally, the connecting component 7 is rod-shaped.

[0082] Two adjacent connecting parts 7 are spaced apart in the circumferential direction of the guide part 5 so that the medium flowing in the cylindrical part 1 flows away from the inlet (i.e., the lower end), thereby distributing the medium flowing in the cylindrical part 1 below the cylindrical part 1.

[0083] Further, see Figure 17 and 18 as well as Figure 2 The elastic component 4 is a helical spring extending circumferentially along the guide component 5. The elastic component 4 is sleeved on the outside of the guide component 5, and one end of the elastic component 4 is sleeved between the sleeve 32 of the movable component 3 and the rod-shaped guide component 5 and abuts against the disc-shaped body 31. The other end of the elastic component 4 abuts against the connecting component 7 to push the movable component 3 toward the inlet of the cylindrical component 1.

[0084] See Figure 2 , Figures 14 to 16 as well as Figure 19 The cylindrical component 1 has a first snap-fit ​​structure 12 on the outer circumferential surface of the end with the inlet. The cooling tower liquid distribution nozzle also includes an end cap 6 on the end with the inlet of the cylindrical component 1. The end cap 6 includes a second snap-fit ​​structure 61 on the outside of the cylindrical component 1 and adapted to the first snap-fit ​​structure 12, and a third snap-fit ​​structure 62 on the side of the second snap-fit ​​structure 61 away from the cylindrical component 1. The third snap-fit ​​structure 62 is used to install the cooling tower liquid distribution nozzle on the mounting hole of the supporting component that carries the cooling tower liquid distribution nozzle.

[0085] In this embodiment, the end cap 6 is connected to the cylindrical component 1 through the second snap-fit ​​structure 61 and installed on the above-mentioned load-bearing structure through the second snap-fit ​​structure, which has the advantages of simple installation and convenient operation.

[0086] In some embodiments, the supporting component includes a liquid distributor for the cooling tower, optionally in the form of a disc-shaped distribution tray. The aforementioned mounting holes are provided on the bottom wall of the liquid distributor.

[0087] The end cap 6 also includes a cylindrical portion 63 fitted inside the cylindrical component 1 and a flange 64 located at one end of the cylindrical portion 63 and protruding radially outward from the cylindrical portion 63. A protrusion 65 is provided on the side of the flange 64 facing the cylindrical component 1. A second snap-fit ​​structure 61 and a third snap-fit ​​structure 62 are located on the side of the protrusion 65 closest to the cylindrical component 1 and the side furthest from the cylindrical component 1, respectively. The protrusion 65 is fitted within the aforementioned mounting hole and extends beyond the cylindrical component 1.

[0088] The second snap-fit ​​structure 61 is a first snap-fit ​​protrusion protruding from the protrusion 65 toward the cylindrical component 1. The first snap-fit ​​protrusion has a first guide slope that gradually slopes away from the cylindrical component 1 in a direction away from the flange 64. The second snap-fit ​​structure has a second guide slope that gradually slopes away from the flange 64 toward the cylindrical component 1 relative to the protrusion 65. During the process of installing the liquid distribution nozzle onto the liquid distributor 8, the end cap 6 is first inserted into the mounting hole on the liquid distributor 8. During this process, the second guide slope moves downward relative to the outer edge of the mounting hole. Then, the outer edge of the mounting hole is engaged between the second snap-fit ​​protrusion and the flange 64. Then, the cylindrical component 1 is inserted between the protrusion 65 and the cylindrical portion 63. During this process, the first snap-fit ​​structure 12 moves upward along the second guide slope. Then, the first snap-fit ​​structure 12 and the second snap-fit ​​protrusion engage.

[0089] The liquid distribution nozzle of this embodiment features gradual installation, simple structure, simplified design, and low cost.

[0090] In some embodiments, the cylindrical component 1, multiple dispersing components 2, guiding component 5, and connecting component 7 are connected as a single unit. Specifically, the installation process of the liquid distribution nozzle is as follows:

[0091] Insert the end cap 6 into the mounting hole of the liquid distributor 8;

[0092] The elastic component 4 is fitted onto the rod-shaped guide component 5, and the movable component 3 is fitted onto the guide component 5.

[0093] Insert the upper end of the cylindrical component 1 between the protrusion 65 and the sleeve 32 so that the cylindrical component 1 is engaged with the end cap 6.

[0094] Combination Figures 19 to 22 As shown, as the liquid level in the distributor 8 increases, the hydraulic pressure increases, forcing the moving part 3 to descend and compress the elastic part 4. The liquid level gradually reaches 10% of the standard operating condition. (See [reference]). Figure 20 At this time, as the moving part 3 descends, it slowly leaks out of the corresponding discharge hole 11 above the first part. When the liquid level reaches 30%, the moving part 3 stops at the middle position between the first and second dispersing parts. At this time, part of the medium flowing out of the uppermost discharge hole layer is guided out through the dispersing channel 21 of the first heat dissipation part and sprayed out, while another part is diverted to the second dispersing part through the medium flow hole 22 on the first dispersing part. The medium in the second dispersing part will then flow out through the dispersing channel 21 of the second dispersing part, and another part will flow to the third dispersing part through the medium flow hole of the second dispersing part. This ensures that the nozzle can spray each layer regardless of whether the liquid level is under standard conditions.

[0095] See Figure 21 When the liquid level slowly reaches 30%-60% of the standard working condition, the liquid pressure slowly increases to about twice the size of the moving part 3 between the first and second dispersing parts. The moving part 3 then compresses the elastic part 4 again, and the moving part 3 slowly moves to the position between the second and third dispersing parts. The total flow area of ​​the medium discharge also slowly becomes twice that of the first dispersing part, so the spraying range is also roughly the same.

[0096] See Figure 22 When the liquid level slowly reaches 60%-100% of the standard working condition, the water outlet area becomes three times that of the first dispersing component, and the liquid pressure slowly increases to about three times that of the first dispersing component, so the range is also roughly the same; in addition to flowing out from the three-layer water distribution area, because there is a gap between the moving part 3 and the inner circumference of the cylindrical part 1, water can also flow out from directly below, thus ensuring that the entire water spraying process of the nozzle covers all the surrounding areas.

[0097] The liquid distribution nozzle of this embodiment achieves the following technical effects:

[0098] 1. Three discharge hole layers and three corresponding dispersion components were designed. By distributing the medium layer by layer and guiding it with dispersion components (guide walls), uniform spraying at different liquid levels is ensured.

[0099] 2. Liquid level adaptive adjustment mechanism: The dynamic adjustment system using elastic component 4 and moving component automatically adjusts the water outlet position according to changes in liquid level, which helps to maintain a consistent spraying range.

[0100] 3. Ensure the hydraulic pressure inside the nozzle is relatively stable, so that the medium (water) is continuously sprayed below the nozzle, thereby achieving a stable and uniform spraying effect.

[0101] In conclusion, regardless of changes in liquid level, this patented nozzle can guarantee a constant spray range.

[0102] According to another aspect of the present invention, a cooling tower is also provided, which includes the above-mentioned cooling tower liquid distribution nozzle.

[0103] According to another aspect of the present invention, an air conditioning system is also provided, which includes the cooling tower described above.

[0104] The above are merely exemplary embodiments of the present utility model and are 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 shall be included within the protection scope of the present utility model.

Claims

1. A cooling tower liquid distribution nozzle, characterized in that, include: A cylindrical component (1) has an inlet at one end of its axial direction for introducing a medium to be cooled. The cylindrical component (1) has a plurality of discharge hole layers arranged along the axial direction for discharging the medium to be cooled. Each discharge hole layer includes a plurality of discharge holes (11) arranged along the circumference of the cylindrical component (1). The movable component (3) is movably disposed within the cylindrical component (1) along the axial direction and is configured to withstand the pressure of the medium introduced into the inlet of the cylindrical component (1), the movable component (3) being configured to block the medium introduced into the inlet of the cylindrical component (1) from flowing toward the side of the movable component (3) away from the inlet. The elastic member (4) is configured to push the movable member (3) toward the inlet along the axial direction. The movable member (3) is configured to overcome the elastic force of the elastic member (4) and move away from the inlet as the pressure of the medium introduced into the inlet increases, so as to increase the number of discharge holes (11) between the movable member (3) and the inlet.

2. The cooling tower liquid distribution nozzle according to claim 1, characterized in that, It also includes a plurality of dispersing components (2) arranged along the axial direction and extending along the outer periphery of the cylindrical component (1), the plurality of dispersing components (2) being provided one-to-one with the plurality of discharge hole layers and located on the side of the corresponding discharge hole layer away from the inlet, the dispersing component (2) being configured to guide the medium discharged from the corresponding discharge hole layer toward the outer edge of the dispersing component (2) away from the outer periphery of the cylindrical component (1), the outer diameter of the plurality of dispersing components (2) gradually decreasing in the direction away from the inlet.

3. The cooling tower liquid distribution nozzle according to claim 2, characterized in that, The surface of the dispersing component (2) near the inlet is provided with a dispersing channel (21) that guides the medium discharged from the discharge hole (11) toward the outer edge of the dispersing component (2), and a plurality of the dispersing channels (21) are arranged circumferentially along the cylindrical component (1).

4. The cooling tower liquid distribution nozzle according to claim 3, characterized in that, The dispersion channel (21) is radially inclined or bent relative to the cylindrical component (1).

5. The cooling tower liquid distribution nozzle according to claim 4, characterized in that, The dispersion channel (21) on the dispersion component (2) is provided in a one-to-one correspondence with the discharge hole (11).

6. The cooling tower liquid distribution nozzle according to any one of claims 2 to 5, characterized in that, At least part of the dispersing component (2) is provided with a medium flow hole (22) extending through the axial direction, and the medium flow hole (22) of the dispersing component (2) is closer to the outer peripheral surface of the cylindrical component (1) than the outer edge of the dispersing component (2) located on the side of the dispersing component (2) away from the inlet.

7. The cooling tower liquid distribution nozzle according to claim 6, characterized in that, Multiple medium flow holes (22) are arranged circumferentially along the cylindrical component (1); the medium flow holes (22) are disposed in the dispersion channel (21) of the dispersion component (2).

8. The cooling tower liquid distribution nozzle according to claim 1, characterized in that, A gap is provided between the outer peripheral surface of the movable component (3) and the inner peripheral surface of the cylindrical component (1) to allow the medium to pass through, and an outlet for discharging the medium is provided at the end of the cylindrical component (1) away from the inlet.

9. The cooling tower liquid distribution nozzle according to claim 1, characterized in that, It also includes a guide member (5) disposed within the cylindrical member (1) and configured to guide the movable member (3) to move along the axial direction. The movable member (3) includes a disc-shaped body (31) perpendicular to the axial direction and a guide hole (33) disposed on the disc-shaped body (31). The guide member (5) passes through the guide hole (33), and the movable member (3) is configured to move along the guide member (5).

10. The cooling tower liquid distribution nozzle according to claim 9, characterized in that, The inner diameter of the guide hole (33) is larger than the outer diameter of the guide component (5), and the end of the cylindrical component (1) away from the inlet forms the outlet of the output medium.

11. The cooling tower liquid distribution nozzle according to claim 1, characterized in that, The cylindrical component (1) has a first snap-fit ​​structure (12) on the outer circumferential surface of the end with the inlet. The cooling tower liquid distribution nozzle also includes an end cap (6) on the cylindrical component (1) with the inlet. The end cap (6) includes a second snap-fit ​​structure (61) on the outside of the cylindrical component (1) and adapted to the first snap-fit ​​structure (12), and a third snap-fit ​​structure (62) on the side of the second snap-fit ​​structure (61) away from the cylindrical component (1). The third snap-fit ​​structure (62) is used to install the cooling tower liquid distribution nozzle on the mounting hole of the supporting component that carries the cooling tower liquid distribution nozzle.

12. The cooling tower liquid distribution nozzle according to claim 11, characterized in that, The end cap (6) further includes a cylindrical portion (63) sleeved inside the cylindrical component (1) and a protruding edge (64) disposed at one end of the cylindrical portion (63) and protruding outward along the radial direction of the cylindrical portion (63). The protruding edge (64) has a protrusion (65) on the side facing the cylindrical component (1). The second snap-fit ​​structure (61) and the third snap-fit ​​structure (62) are respectively located on the side of the protrusion (65) close to the cylindrical component (1) and the side away from the cylindrical component (1).

13. A cooling tower, characterized in that, Includes the cooling tower liquid spray nozzle according to any one of claims 1 to 12.

14. An air conditioning system, characterized in that, Including the cooling tower as described in claim 13.

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