CN-224230832-U - Cooling tower liquid distribution spray head, cooling tower and air conditioning system

CN224230832UCN 224230832 UCN224230832 UCN 224230832UCN-224230832-U

Abstract

A cooling tower liquid distribution head includes a cylindrical member having an inlet through which a medium to be cooled is introduced at one end in an axial direction, a plurality of discharge hole layers provided on a circumferential surface of the cylindrical member for discharging the medium to be cooled and arranged in the axial direction, each of the discharge hole layers including a plurality of discharge holes arranged in a circumferential direction of the cylindrical member, a movable member provided movably in the axial direction in the cylindrical member and configured to receive a pressure of the medium introduced through the inlet of the cylindrical member, the movable member configured to block a flow of the medium introduced through the inlet of the cylindrical member toward a side of the movable member away from the inlet, and an elastic member configured to push the movable member in the axial direction toward the inlet, the movable member being configured to move against an elastic force of the elastic member in a direction away from the inlet as the pressure of the medium introduced through the inlet increases so as to increase the number of the discharge holes between the movable member and the inlet.

Inventors

WANG SHENG
FENG WENHAO
PAN LILING
XIAO YONG
WANG CHENG

Assignees

珠海格力电器股份有限公司

Dates

Publication Date: 20260512
Application Date: 20250526

Claims (14)

1. A cooling tower liquid distribution spray head, comprising: a cylindrical member (1) having an inlet port for introducing a medium to be heat-radiated at one axial end, the cylindrical member (1) having a plurality of discharge hole layers arranged in the axial direction for discharging the medium to be heat-radiated provided on a peripheral surface thereof, each of the discharge hole layers including a plurality of discharge holes (11) arranged in a circumferential direction of the cylindrical member (1); A movable member (3) movably disposed within the cylindrical member (1) in the axial direction and configured to withstand a pressure of a medium introduced at an inlet of the cylindrical member (1), the movable member (3) being configured to block a flow of the medium introduced at the inlet of the cylindrical member (1) to a side of the movable member (3) away from the inlet; -an elastic member (4) configured to urge the movable member (3) toward the inlet in the axial direction, the movable member (3) being configured to move away from the inlet against an elastic force of the elastic member (4) as a pressure of a medium introduced by the inlet increases so as to increase the number of the discharge holes (11) between the movable member (3) and the inlet.
2. The cooling tower liquid distribution head according to claim 1, further comprising a plurality of dispersion members (2) arranged in the axial direction and extending along the outer periphery of the cylindrical member (1), respectively, the plurality of dispersion members (2) being provided in one-to-one correspondence with the plurality of discharge orifice layers and being located on the sides of the respective discharge orifice layers away from the inlet, respectively, the dispersion members (2) being configured to guide a medium discharged from the discharge orifice layer corresponding thereto toward the outer periphery of the dispersion members (2) away from the outer periphery of the cylindrical member (1), the outer diameters of the plurality of dispersion members (2) gradually decreasing in a direction away from the inlet.
3. Cooling tower liquid distribution nozzle according to claim 2, characterized in that a surface of the dispersion member (2) on the side close to the inlet is provided with dispersion flow passages (21) guiding the medium discharged from the discharge holes (11) toward the outer edge of the dispersion member (2), and a plurality of the dispersion flow passages (21) are arranged in the circumferential direction of the cylindrical member (1).
4. A cooling tower liquid distribution spray head according to claim 3, characterized in that the dispersion channel (21) is inclined or bent with respect to the radial direction of the cylindrical member (1).
5. The cooling tower liquid distribution nozzle according to claim 4, wherein the dispersing flow passages (21) on the dispersing member (2) are provided in one-to-one correspondence with the discharge holes (11).
6. Cooling tower liquid distribution nozzle according to any one of claims 2 to 5, characterized in that at least part of the dispersion member (2) is provided with a medium flow hole (22) penetrating in the axial direction, the medium flow hole (22) of the dispersion member (2) being closer to the outer circumferential surface of the cylindrical member (1) than the outer edge of the dispersion member (2) located on the side of the dispersion member (2) remote from the inlet.
7. The cooling tower liquid distribution nozzle according to claim 6, wherein a plurality of medium flow holes (22) are arranged along the circumferential direction of the cylindrical member (1), and the medium flow holes (22) are provided in the dispersing flow passage (21) of the dispersing member (2).
8. Cooling tower liquid distribution spray head according to claim 1, characterized in that a gap allowing the medium to pass through is provided between the outer circumferential surface of the movable part (3) and the inner circumferential surface of the cylindrical part (1), and that an outlet for discharging the medium is provided at the end of the cylindrical part (1) remote from the inlet.
9. Cooling tower liquid distribution spray head according to claim 1, further comprising a guiding member (5) arranged in the cylindrical member (1) and configured to guide the movable member (3) to move in the axial direction, the movable member (3) comprising a disc-shaped body (31) perpendicular to the axial direction and a guiding hole (33) provided on the disc-shaped body (31), the guiding member (5) being threaded in the guiding hole (33), the movable member (3) being configured to move along the guiding member (5).
10. Cooling tower liquid distribution spray head according to claim 9, characterized in that the inner diameter of the guide hole (33) is larger than the outer diameter of the guide member (5), and that the end of the tubular member (1) remote from the inlet forms the outlet of the output medium.
11. The cooling tower liquid distribution nozzle according to claim 1, wherein a first clamping structure (12) is arranged on the outer peripheral surface of one end of the cylindrical component (1) provided with the inlet, the cooling tower liquid distribution nozzle further comprises an end cover (6) arranged on one end of the cylindrical component (1) provided with the inlet, the end cover (6) comprises a second clamping structure (61) arranged on the outer side of the cylindrical component (1) and matched with the first clamping structure (12), and a third clamping structure (62) arranged on one side, away from the cylindrical component (1), of the second clamping structure (61), and the third clamping structure (62) is used for installing the cooling tower liquid distribution nozzle on an installation hole of a bearing component for bearing the cooling tower liquid distribution nozzle.
12. The cooling tower liquid distribution nozzle according to claim 11, wherein the end cover (6) further comprises a cylindrical portion (63) sleeved in the cylindrical member (1) and a convex edge (64) arranged at one end of the cylindrical portion (63) and protruding outwards along the radial direction of the cylindrical portion (63), a protrusion (65) is arranged on one surface of the convex edge (64) facing the cylindrical member (1), and the second clamping structure (61) and the third clamping structure (62) are respectively positioned on one side, close to the cylindrical member (1), of the protrusion (65) and one side, far away from the cylindrical member (1).
13. A cooling tower comprising the cooling tower liquid distribution head of any one of claims 1 to 12.
14. An air conditioning system comprising the cooling tower of claim 13.

Description

Cooling tower liquid distribution spray head, cooling tower and air conditioning system Technical Field The utility model relates to the technical field of air conditioners, in particular to a liquid distribution spray head of a cooling tower, the cooling tower and an air conditioning system. Background The cooling tower comprises a liquid distributor and a plurality of liquid distribution spray heads arranged on the liquid distributor, wherein the liquid distribution spray heads are provided with inlets communicated with the liquid distributor for introducing a medium (such as water) to be cooled and discharge holes for discharging the medium, and the plurality of discharge holes are arranged along the circumferential direction of the liquid distribution spray heads so as to distribute the medium to be cooled on a cooling structure for cooling the medium to be cooled. In order to meet the requirements and save energy, most of the cooling towers are also provided with medium variable-frequency cooling pumps, the output of which is cooled by the cooling structure, the variable-frequency cooling pumps can automatically adjust the power change according to the heat dissipation capacity of an air conditioning system to adjust the output quantity of a cooled medium (such as cooling water), when the output quantity of the cooling towers changes, the internal liquid level of the liquid distributor (liquid distribution disc) of the cooling towers is caused to change, the liquid inlet pressure of the liquid distribution spray heads is also caused to change, so that the spray areas of the spray heads are unstable, when the liquid inlet pressure is large, the spray areas of the spray heads are relatively large, the spray areas are overlapped due to the fixed positions of the spray heads, and when the liquid inlet pressure is small, the spray areas of the spray heads are small, a plurality of anhydrous areas are formed, and heat exchange is affected. Disclosure of utility model The utility model aims to provide a liquid distribution nozzle of a cooling tower, the cooling tower and an air conditioning system, so as to solve the problem that the liquid distribution nozzle in the prior art has larger change in a spraying area due to the change of liquid inlet pressure. According to an aspect of the embodiment of the present utility model, there is provided a cooling tower liquid distribution nozzle, including: A cylindrical member having an inlet port for introducing a medium to be heat-radiated at one axial end thereof, a plurality of discharge hole layers arranged in the axial direction for discharging the medium to be heat-radiated being provided on the peripheral surface of the cylindrical member, each of the discharge hole layers including a plurality of discharge holes arranged in the circumferential direction of the cylindrical member; A movable member movably disposed in the cylindrical member in an axial direction and configured to withstand a pressure of a medium introduced from an inlet of the cylindrical member, the movable member being configured to block the medium introduced from the inlet of the cylindrical member from flowing to a side of the movable member away from the inlet; And an elastic member configured to push the movable member toward the inlet in an axial direction, the movable member being configured to move in a direction away from the inlet against an elastic force of the elastic member as a 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. In some embodiments, the cooling tower liquid distribution head further includes a plurality of dispersion members arranged in the axial direction and extending along the outer periphery of the cylindrical member, respectively, the plurality of dispersion members being disposed in one-to-one correspondence with the plurality of discharge orifice layers and being located at a side of the respective discharge orifice layers away from the inlet, respectively, the dispersion members being configured to guide a medium discharged from the discharge orifice layer corresponding thereto toward an outer edge of the dispersion member away from the outer peripheral surface of the cylindrical member, the outer diameters of the plurality of dispersion members gradually decreasing in a direction away from the inlet. In some embodiments, a surface of the dispersion member on a side close to the inlet is provided with dispersion flow passages that guide the medium discharged from the discharge holes toward an outer edge of the dispersion member, and the plurality of dispersion flow passages are arranged in a circumferential direction of the cylindrical member. In some embodiments, the dispersion channel is inclined or curved relative to the radial direction of the cylindrical member. In some embodiments, the dispersion flow channels on the dispersion member are arranged in o