Sound absorbing device and cooling apparatus

Abstract

The utility model discloses cooling equipment technical field discloses a sound absorption device and cooling equipment, and this sound absorption device includes mounting piece and sound absorption piece, the mounting piece is equipped with air inlet, sound absorption piece is connected with mounting piece, and sound absorption piece is opposite to the setting of air inlet, and the sound absorption piece covers air inlet in the direction of axial orthographic projection of air inlet, and the gap of at least one side of sound absorption piece and mounting piece forms air inlet channel, and air inlet channel is communicated with air inlet. The sound absorption device can carry out sound absorption treatment to the noise that the cooling tower air inlet place transmits, reaches the effect of noise reduction, and the sound absorption device will not form the block to the wind that the external environment comes, and the wind required when the cooling tower runs can enter from the air inlet channel of side portion, and enters the cooling tower through air inlet, to satisfy the need of wind force when the cooling tower runs.

Description

Technical Field

[0001] This utility model belongs to the field of cooling equipment technology, specifically relating to a sound-absorbing device and a cooling equipment. Background Technology

[0002] When existing cooling towers are in operation, the top fan rotates at high speed to enhance heat exchange, drawing in a large amount of air. The eddies and vibrations generated by the blades cutting through the air create broadband rotational noise and eddy noise, thus generating aerodynamic noise. Meanwhile, hot water sprayed down from the water distribution system impacts the packing material and splashes onto the water surface of the collection pool, generating continuous water spray noise. The large air inlet area of ​​the cooling tower makes it the main channel for these noises to propagate outward.

[0003] With the continued advancement of urbanization, many industrial facilities are gradually being integrated from suburbs into newly built areas, resulting in numerous cooling towers being located adjacent to noise-sensitive areas such as residential areas and commercial buildings. The noise generated by cooling towers during operation not only causes continuous disturbance to the physical and mental health of nearby residents but also limits the expansion of their application scope. Especially in places with stringent acoustic requirements, such as recording studios, broadcasting and television production rooms, precision instrument laboratories, and high-end data centers, noise control of cooling towers has become one of the key technical bottlenecks affecting their deployment. Utility Model Content

[0004] The purpose of this invention is to provide a sound-absorbing device that can absorb noise emitted from the air inlet of a cooling tower, thereby achieving noise reduction.

[0005] The following technical solutions are used to achieve the above objectives.

[0006] The first aspect of this utility model provides a sound-absorbing device, which includes a mounting component and a sound-absorbing component; the mounting component is provided with an air inlet; the sound-absorbing component is connected to the mounting component, the sound-absorbing component is disposed opposite to the air inlet, and the sound-absorbing component covers the air inlet in the axial projection direction of the air inlet; at least one side of the sound-absorbing component has a gap with the mounting component to form an air inlet channel, and the air inlet channel is connected to the air inlet.

[0007] In some embodiments, the mounting component includes a mounting frame and a first sound-absorbing cotton; the mounting frame has an internally hollow annular structure, the air inlet is provided on the peripheral wall of the mounting frame, and the first sound-absorbing cotton is disposed on the inner side of the mounting frame.

[0008] In some embodiments, the mounting frame has multiple air inlets on its peripheral wall, which are arranged sequentially along the circumferential direction of the mounting frame. Multiple sound-absorbing components are provided, and each sound-absorbing component corresponds to one of the air inlets.

[0009] In some embodiments, the sound-absorbing device further includes a mounting frame, which includes a support plate and an insert plate; the support plate has a through hole adapted to the shape of the air inlet, the insert plate is connected to the support plate and disposed along the edge of the through hole, and the support plate and the insert plate form a step; the support plate is mounted on the mounting frame and located outside the air inlet, the insert plate is inserted into the air inlet and fits against the side wall of the air inlet, and the sound-absorbing element is connected to the support plate.

[0010] In some embodiments, the mounting bracket has a first receiving groove on the inner sidewall corresponding to both sides of the air inlet, and the first sound-absorbing cotton is disposed in the first receiving groove.

[0011] In some embodiments, the sound-absorbing component includes a first sound-absorbing part, a second sound-absorbing part, and a third sound-absorbing part; the first and second sound-absorbing parts are vertically disposed at opposite ends of the mounting component corresponding to the air inlet, the third sound-absorbing part is supported on the first and second sound-absorbing parts, and the third sound-absorbing part covers the air inlet in the orthogonal projection direction of the air inlet axis, and the air inlet channel is formed between the opposite sides of the third sound-absorbing part and the mounting component.

[0012] In some embodiments, the sound-absorbing component includes a sound-absorbing frame and a second sound-absorbing cotton; the sound-absorbing frame is provided with a second receiving groove on the side facing the air inlet, and the second sound-absorbing cotton is disposed in the second receiving groove.

[0013] In some embodiments, the sound-absorbing component further includes a connector, the opposite ends of which are respectively connected to the third sound-absorbing part and the mounting component.

[0014] In some embodiments, the third sound-absorbing part is connected to the mounting part via the connector on the side of the air inlet channel, and multiple connectors are provided, with each connector arranged at intervals in sequence.

[0015] The second aspect of this utility model provides a cooling device, including a cooling tower and a sound-absorbing device as described above;

[0016] The cooling tower has an air inlet; the mounting component is located outside the cooling tower, and the air inlet is connected to the air outlet.

[0017] The technical solution provided by this utility model has the following advantages and effects:

[0018] This sound-absorbing device is installed at the air inlet of the mounting component, with the sound-absorbing component covering the air inlet in the axial direction of the air inlet. When installed outside the air inlet of the cooling tower, noise from inside the cooling tower is transmitted to the air inlet from the inside and is directly absorbed by the sound-absorbing component facing the air inlet. This effectively absorbs the noise transmitted from the air inlet of the cooling tower, achieving a noise reduction effect. Furthermore, there is a gap between at least one side of the sound-absorbing component and the mounting component, forming an air inlet channel that connects to the air inlet. Therefore, this sound-absorbing device does not obstruct the airflow from the external environment. The airflow required for the cooling tower to operate can enter through the side air inlet channel and then enter the cooling tower through the air inlet to meet the airflow requirements during operation. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the cooling device according to an embodiment of the present invention.

[0020] Figure 2 This is a structural schematic diagram of the sound-absorbing device according to an embodiment of the present invention.

[0021] Figure 3 yes Figure 2 A schematic diagram of the cross-section of the sound-absorbing device.

[0022] Figure 4 This is a structural schematic diagram of the sound-absorbing component according to an embodiment of the present utility model.

[0023] Figure 5 yes Figure 4 A schematic diagram of the cross-section of the sound-absorbing component.

[0024] Figure 6 yes Figure 4 A structural schematic diagram of the sound-absorbing component from another angle.

[0025] Explanation of reference numerals in the attached figures:

[0026] 100. Cooling equipment;

[0027] 10. Sound absorption device; 20. Cooling tower;

[0028] 1. Mounting component; 11. Air inlet; 12. Mounting bracket; 121. First receiving groove; 2. Sound-absorbing component; 21. First sound-absorbing part; 22. Second sound-absorbing part; 23. Third sound-absorbing part; 24. Sound-absorbing frame; 241. Second receiving groove; 25. Second sound-absorbing cotton; 26. Connecting component; 3. Air inlet channel; 4. Fixing bracket; 41. Support plate; 411. Through hole; 42. Insert plate. Detailed Implementation

[0029] To facilitate understanding of this utility model, the specific embodiments of this utility model will be described in more detail below with reference to the accompanying drawings.

[0030] Unless otherwise specified or defined, the terms "first," "second," etc., used in this document are for distinguishing names only and do not represent a specific number or order.

[0031] Unless otherwise stated or defined, the term “and / or” as used herein includes any and all combinations of one or more of the associated listed items.

[0032] It should be noted that in this article, "fixed to" or "connected to" can mean directly fixed to or connected to a component, or indirectly fixed to or connected to a component.

[0033] It should be noted that, in this embodiment, the sound-absorbing device 10 can be installed at the air inlet of the cooling tower 20 to absorb the noise generated during the operation of the cooling tower 20, thereby achieving noise reduction. Of course, in other embodiments, the sound-absorbing device 10 can also be used on other equipment to absorb the noise generated during the operation of other equipment, and no particular limitation is made here.

[0034] This utility model provides a sound-absorbing device 10, such as Figures 1 to 6 As shown, the sound-absorbing device 10 includes a mounting component 1 and a sound-absorbing component 2; the mounting component 1 is provided with an air inlet 11; the sound-absorbing component 2 is connected to the mounting component 1, and the sound-absorbing component 2 is arranged opposite to the air inlet 11, and the sound-absorbing component 2 covers the air inlet 11 in the axial orthogonal projection direction; wherein, since the sound-absorbing component 2 is arranged directly opposite the air inlet 11 and covers the air inlet 11 in the axial direction, when the sound-absorbing device 10 is arranged outside the air inlet of the cooling tower 20, the noise inside the cooling tower 20 is conducted from the inside to the air inlet 11 through the air inlet. The sound will be directly absorbed by the sound-absorbing component 2 facing the air inlet 11, thereby absorbing the noise transmitted from the air inlet of the cooling tower 20 and achieving the effect of noise reduction. Moreover, there is a gap between at least one side of the sound-absorbing component 2 and the mounting component 1 to form an air inlet channel 3. The air inlet channel 3 is connected to the air inlet 11. Therefore, the sound-absorbing device 10 will not block the wind coming in from the external environment. The wind required for the operation of the cooling tower 20 can enter from the side air inlet channel 3 and enter the cooling tower 20 through the air inlet 11 to meet the wind power requirements of the cooling tower 20 during operation.

[0035] In some implementations, such as Figure 2 and Figure 3As shown, the mounting component 1 includes a mounting bracket 12 and a first sound-absorbing cotton. The mounting bracket 12 has an internally hollow annular structure, and the air inlet 11 is formed on the peripheral wall of the mounting bracket 12. The first sound-absorbing cotton is disposed on the inner side of the mounting bracket 12. It should be noted that the mounting bracket 12 has a first receiving groove 121 on the inner side wall corresponding to both sides of the air inlet 11. The first sound-absorbing cotton is disposed in the first receiving groove 121, which can provide stable physical support for the first sound-absorbing cotton. Moreover, the embedded installation method is not only accurate in positioning and has good firmness, but also facilitates future maintenance or replacement. Understandably, the mounting bracket 12 adopts an internally hollow ring structure, which can be arranged around the periphery of the cooling tower 20 to install the sound absorption device 10 without intruding into the internal space of the tower body. This effectively avoids occupying the internal space of the cooling tower 20 and effectively avoids interference with the original components such as the fan, packing, and spray system inside the cooling tower 20. The first sound-absorbing cotton can form a double-layer composite sound-absorbing barrier with the sound-absorbing component 2, which can effectively target broadband noise, especially the mid-to-low frequency water spray noise and aerodynamic noise, and effectively improve the overall noise reduction capacity.

[0036] In some implementations, such as Figure 3 As shown, the mounting frame 12 has multiple air inlets 11 on its peripheral wall, which are arranged sequentially along the circumferential direction of the mounting frame 12. Multiple sound-absorbing components 2 are provided, and each sound-absorbing component 2 corresponds to one of the air inlets 11. Understandably, the uniform arrangement of multiple air inlets 11 along the circumferential direction of the mounting frame 12 makes the air intake of the cooling tower 20 more uniform and stable, reduces airflow vortices and local resistance, helps maintain the airflow balance and required air volume within the tower, and effectively avoids the problem of reduced ventilation efficiency caused by the installation of the sound-absorbing device 10. Furthermore, the presence of the sound-absorbing component 2 at each air inlet 11 ensures the uniformity and consistency of the noise reduction effect.

[0037] In some implementations, such as Figures 4 to 6As shown, the sound-absorbing device 10 further includes a fixing frame 4, which includes a support plate 41 and an insert plate 42. The support plate 41 has a through hole 411 adapted to the shape of the air inlet 11. The insert plate 42 is connected to the support plate 41 and is arranged along the edge of the through hole 411, and the support plate 41 and the insert plate 42 form a step. The support plate 41 is mounted on the mounting frame 12 and located outside the air inlet 11. The insert plate 42 is inserted into the air inlet 11 and fits against the side wall of the air inlet 11. The sound-absorbing component 2 is connected to the support plate 41. The support plate 41 is fixed to the mounting frame 12 with fasteners such as bolts, and is positioned on the outer side of the mounting frame 12 corresponding to the edge of the air inlet 11. The insert plate 42 is adapted to the shape of the air inlet 11 and is set as a square frame structure. The insert plate 42 is inserted into the air inlet 11 of the mounting frame 12 and fits against the side wall of the air inlet 11. This allows the sound-absorbing component 2 to be fixed to the outside of the air inlet 11 by the fixing frame 4, improving structural stability. In addition, both the support plate 41 and the insert plate 42 can be sound-absorbing material boards, such as glass wool boards, rock wool boards, mineral wool boards, etc., without special restrictions. The sound absorption performance of the support plate 41 and the insert plate 42 not only forms a barrier on the side wall of the air inlet 11, but also covers the outer edge area of ​​the airflow inlet, effectively avoiding sound leakage caused by weak sound insulation at the edge joint, thereby further improving the sound absorption effect.

[0038] In some implementations, such as Figure 4As shown, the sound-absorbing component 2 includes a first sound-absorbing part 21, a second sound-absorbing part 22, and a third sound-absorbing part 23. The first sound-absorbing part 21 and the second sound-absorbing part 22 are vertically arranged at opposite ends of the mounting component 1 corresponding to the air inlet 11. The third sound-absorbing part 23 is supported on the first sound-absorbing part 21 and the second sound-absorbing part 22, and the third sound-absorbing part 23 covers the air inlet 11 in the axial orthogonal projection direction. Air inlet channels 3 are formed between the opposite sides of the third sound-absorbing part 23 and the mounting component 1. The first sound-absorbing part 21, the second sound-absorbing part 22, and the third sound-absorbing part 23 can be made of different sound-absorbing materials or sound-absorbing structures, such as porous fibers, resonant cavities, or composite sound-absorbing layers. The thickness of the sound-absorbing part can also be adjusted according to actual needs, so that it can be specifically set according to the specific frequency band noise to be treated. The width of the air inlet channel 3 can also be adjusted according to the air volume requirements, so as to meet the noise reduction needs of different types of cooling towers 20. Understandably, through the support of the first sound-absorbing part 21 and the second sound-absorbing part 22, the third sound-absorbing part 23 can be suspended above the air inlet 11. Specifically, the first sound-absorbing part 21 and the second sound-absorbing part 22 are arranged on the upper and lower sides of the mounting member 1 corresponding to the air inlet 11. Therefore, the upper and lower ends of the third sound-absorbing part 23 are supported by the first sound-absorbing part 21 and the second sound-absorbing part 22. The air inlet channel 3 is formed between the left and right sides of the third sound-absorbing part 23 and the mounting member 1, so as to absorb the noise transmitted from the upper side, lower side and the front direction of the air inlet 11, forming a three-dimensional sound-absorbing barrier, widening the frequency band of noise absorption, and achieving a better noise reduction effect. The air inlet channels 3 on both sides can ensure that the air volume required for the operation of the cooling tower 20 passes through without obstruction, effectively avoiding the increase of wind resistance caused by the sound-absorbing part 2 covering the air inlet 11, and maintaining the uniformity and stability of airflow.

[0039] In some implementations, such as Figure 4 As shown, the air inlet 11 is a rectangular opening, and the third sound-absorbing part 23 is a rectangular plate structure adapted to the shape of the air inlet 11. The area of ​​the third sound-absorbing part 23 is larger than the area of ​​the air inlet 11, so that the third sound-absorbing part 23 covers the air inlet 11 in the orthogonal projection direction of the axial direction of the air inlet 11.

[0040] Specifically in this embodiment, such as Figure 5As shown, the sound-absorbing component 2 includes a sound-absorbing frame 24 and a second sound-absorbing cotton 25; the sound-absorbing frame 24 has a second receiving groove 241 on the side facing the air inlet 11, and the second sound-absorbing cotton 25 is disposed in the second receiving groove 241. Understandably, the sound-absorbing frame 24, as a rigid structural skeleton, can provide stable physical support for the second sound-absorbing cotton 25, thereby ensuring that the sound-absorbing component 2 can maintain its preset shape and size, is easy to install and fix in the position directly opposite the air inlet 11, and can resist deformation, vibration, or displacement caused by airflow impact, ensuring structural reliability for long-term use.

[0041] In some implementations, such as Figure 5 As shown, the sound-absorbing component 2 also includes a connector 26. The two ends of the connector 26 are respectively connected to the third sound-absorbing part 23 and the mounting part 1. Specifically, one end of the connector 26 is connected to the mounting part 1, and the other end is connected to the sound-absorbing frame 24 of the sound-absorbing component 2 corresponding to the third sound-absorbing part 23. This can further enhance the stability of the connection between the sound-absorbing component 2 and the mounting part 1, effectively avoid the vibration of the sound-absorbing component 2 caused by airflow impact, and ensure the reliability of the long-term operation of the sound-absorbing device 10.

[0042] Specifically, in this embodiment, the third sound-absorbing part 23, corresponding to the side of the air inlet channel 3, is connected to the mounting member 1 via the connector 26. Multiple connectors 26 are provided, arranged sequentially at intervals. The multiple connectors 26 cooperate to connect the two sides of the third sound-absorbing part 23 corresponding to the two air inlet channels 3 to the mounting member 1, ensuring that the sound-absorbing part 23 is securely fixed to the mounting member 1. Furthermore, the spaced arrangement of the connectors 26 does not obstruct airflow from the air inlet channel 3, ensuring unobstructed airflow required for the operation of the cooling tower 20.

[0043] This utility model embodiment also provides a cooling device 100, such as... Figures 1 to 6 As shown, the system includes a cooling tower 20 and a sound-absorbing device 10 as described above. The cooling tower 20 has an air inlet. The mounting component 1 is disposed outside the cooling tower 20, and the air inlet is connected to the air intake 11. By installing the sound-absorbing device 10 at the air inlet of the cooling tower 20, the noise transmitted from the air inlet of the cooling tower 20 can be absorbed, achieving a noise reduction effect. Furthermore, the sound-absorbing device 10 does not obstruct the airflow from the external environment. The airflow required for the operation of the cooling tower 20 can enter from the side air intake channel 3 and then enter the cooling tower 20 through the air intake 11 to meet the airflow requirements of the cooling tower 20 during operation.

[0044] In summary, the sound-absorbing device 10, by setting the sound-absorbing component 2 at the air inlet 11 of the mounting component 1, and with the sound-absorbing component 2 covering the air inlet 11 in the axial orthogonal projection direction of the air inlet 11, when assembled outside the air inlet of the cooling tower 20, will directly absorb the noise transmitted from the inside of the cooling tower 20 to the air inlet 11 through the air inlet, thereby achieving the effect of noise reduction. Furthermore, there is a gap between at least one side of the sound-absorbing component 2 and the mounting component 1 to form an air inlet channel 3, which is connected to the air inlet 11. Therefore, the sound-absorbing device 10 will not block the wind coming in from the external environment. The wind required for the operation of the cooling tower 20 can enter from the side air inlet channel 3 and enter the cooling tower 20 through the air inlet 11 to meet the wind power requirements of the cooling tower 20 during operation.

[0045] The above embodiments are not an exhaustive list based on this utility model, and there may be other embodiments not listed. Any substitutions and improvements made without departing from the concept of this utility model are within the protection scope of this utility model.

Claims

1. Sound absorbing device, characterized in that The sound-absorbing device includes a mounting component and a sound-absorbing component; the mounting component is provided with an air inlet; the sound-absorbing component is connected to the mounting component, the sound-absorbing component is disposed opposite to the air inlet, and the sound-absorbing component covers the air inlet in the axial projection direction of the air inlet; there is a gap between at least one side of the sound-absorbing component and the mounting component to form an air inlet channel, and the air inlet channel is connected to the air inlet.

2. The sound absorbing device of claim 1, wherein The mounting component includes a mounting frame and a first sound-absorbing cotton; the mounting frame has an internally hollow annular structure, and the air inlet is provided on the peripheral wall of the mounting frame, and the first sound-absorbing cotton is disposed on the inner side of the mounting frame.

3. The sound absorbing device of claim 2, wherein The mounting bracket has multiple air inlets on its peripheral wall, which are arranged sequentially along the circumferential direction of the mounting bracket. Multiple sound-absorbing components are provided, and each sound-absorbing component corresponds to one of the air inlets.

4. The sound absorbing device of claim 2, wherein The sound-absorbing device further includes a mounting frame, which includes a support plate and an insert plate. The support plate has a through hole adapted to the shape of the air inlet. The insert plate is connected to the support plate and is disposed along the edge of the through hole, and the support plate and the insert plate form a step. The support plate is mounted on the mounting frame and located outside the air inlet. The insert plate is inserted into the air inlet and fits against the side wall of the air inlet. The sound-absorbing component is connected to the support plate.

5. The sound absorbing device of claim 2, wherein The mounting bracket has a first receiving groove on the inner sidewall corresponding to both sides of the air inlet, and the first sound-absorbing cotton is placed in the first receiving groove.

6. The sound absorbing device according to any one of claims 1 to 5, wherein The sound-absorbing component includes a first sound-absorbing part, a second sound-absorbing part, and a third sound-absorbing part; the first sound-absorbing part and the second sound-absorbing part are vertically disposed at opposite ends of the mounting component corresponding to the air inlet; the third sound-absorbing part is supported on the first sound-absorbing part and the second sound-absorbing part, and the third sound-absorbing part covers the air inlet in the orthogonal projection direction of the air inlet axis; and air inlet channels are formed between the opposite sides of the third sound-absorbing part and the mounting component.

7. The sound absorbing device of claim 6, wherein The sound-absorbing component includes a sound-absorbing frame and a second sound-absorbing cotton; the sound-absorbing frame is provided with a second receiving groove on the side facing the air inlet, and the second sound-absorbing cotton is disposed in the second receiving groove.

8. The sound absorbing device of claim 6, wherein The sound-absorbing component also includes a connector, the two ends of which are respectively connected to the third sound-absorbing part and the mounting component.

9. The sound absorbing device of claim 8, wherein The third sound-absorbing part is connected to the mounting part via the connector on the side of the air inlet channel. Multiple connectors are provided, and the connectors are arranged at intervals in sequence.

10. Cooling device, characterized in that Includes a cooling tower and a sound-absorbing device as described in any one of claims 1-9; The cooling tower has an air inlet; the mounting component is located outside the cooling tower, and the air inlet is connected to the air outlet.

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