Cooling tower group inter-noise reduction device and cooling tower system

Abstract

This utility model relates to a noise reduction device and cooling tower system for cooling tower groups. The noise reduction device includes a sound barrier and a silencer. The sound barrier is installed at the port of the gap between two adjacent cooling tower groups, with both ends connected to the two cooling tower groups respectively. The sound barrier has clearance holes. The silencer is located on one side of the sound barrier, between the two cooling tower groups, and corresponds to the clearance holes of the sound barrier. With this arrangement, the noise reduction effect can be improved while ensuring the air intake requirements of the cooling tower groups. Compared to installing multiple silencers on both sides of each cooling tower group, the technical solution of this application reduces the number of silencers used, thereby reducing noise reduction costs, while also reducing the space occupied by the silencers, ensuring ventilation, increasing the air intake area, and thus increasing the air intake volume. This ensures both noise reduction performance and the cooling effect of the cooling tower.

Description

Technical Field

[0001] This utility model relates to the field of cooling tower noise reduction technology, and in particular to a noise reduction device and cooling tower system for cooling tower groups. Background Technology

[0002] A mechanically ventilated cooling tower is a device that uses a mechanical device (fan) to force airflow, enhancing heat exchange between water and air. It is primarily used to cool hot water for recirculation. Mechanically ventilated cooling towers generate significant noise during operation, mainly from the water spray noise at the air inlet. This noise arises from two different mechanisms: one is the sharp pulse noise generated when water droplets impact the water surface and the inner plates of the cooling tower; the other is the noise radiated by the volume pulsation of bubbles created by the water droplets. To reduce the noise at the air inlet of a mechanically ventilated cooling tower, an air inlet silencer is typically installed on the outside of the tower. The air inlet silencers used in cooling towers are generally plate silencers or array silencers. Airflow enters the cooling tower through the air inlet channel in the middle of the silencer plates or silencer columns. As sound waves propagate inside the silencer plates, friction converts sound energy into heat energy, which is then dissipated, thus reducing noise.

[0003] When mechanical ventilation cooling tower groups are arranged in two or more rows, noise reduction at the air inlets can be achieved by using air inlet silencers on both sides of each cooling tower group. However, with this method, the arrangement of the two rows of air inlet silencers in the middle of the tower group occupies a large amount of ventilation space between the two rows of towers. Although the silencers can ensure ventilation, they reduce the air inlet area of ​​the cooling tower and reduce the air intake volume. Utility Model Content

[0004] Therefore, it is necessary to provide a noise reduction device and cooling tower system for cooling tower groups to address the technical problem that existing noise reduction methods reduce the air intake area of ​​cooling towers and reduce the air intake volume, thus affecting the cooling effect.

[0005] A noise reduction device for cooling tower groups, the noise reduction device for cooling tower groups comprising:

[0006] A sound barrier is installed at the port of the gap between two adjacent cooling tower groups. The two ends of the sound barrier are respectively connected to the two cooling tower groups. The sound barrier is provided with clearance holes.

[0007] A silencer is provided on one side of the sound barrier and located between the two cooling tower groups, and the silencer corresponds to the clearance hole of the sound barrier.

[0008] In one embodiment, the sound barrier is provided with mounting holes, and the noise reduction device between the cooling tower groups further includes a soundproof door, which is located at the mounting holes and hinged to the sound barrier.

[0009] In one embodiment, the sound barrier includes:

[0010] A soundproof panel is installed at the port of the gap between two adjacent cooling tower groups;

[0011] The support bracket is connected at one end to the sound insulation plate and at the other end to the cooling tower assembly.

[0012] In one embodiment, the cooling tower assembly is provided with a mounting plate; the support bracket includes:

[0013] A first support plate, which is fixedly connected to the mounting plate;

[0014] The second support plate is fixedly connected to the sound insulation plate;

[0015] In this configuration, at least one of the first support plate and the second support plate is provided with an insertion interface, and one end of the other support plate is inserted into the insertion interface. The first support plate and the second support plate are fixed together by fasteners.

[0016] In one embodiment, the sound insulation panel includes:

[0017] The frame has a perforated installation area.

[0018] A panel is disposed in the installation area, the four edges of the panel are connected to the frame, and two panels are spaced apart to define a sandwich space;

[0019] A sound-absorbing layer is disposed within the interlayer space.

[0020] In one embodiment, the sound insulation panel further includes:

[0021] Reinforcing ribs, multiple reinforcing ribs are spaced apart on the panel and connected to the panel and the frame.

[0022] In one embodiment, the panel is configured as a corrugated plate.

[0023] In one embodiment, the noise reduction device between cooling tower groups further includes:

[0024] The maintenance support is provided with a maintenance passage, and both ends of the maintenance support are respectively connected to the stair passages on the two cooling tower groups.

[0025] In one embodiment, the maintenance support includes:

[0026] Support members, multiple support members are disposed between the two cooling tower groups, and the two ends of each support member are respectively connected to the two cooling tower groups;

[0027] A bearing plate is laid on the support member;

[0028] Guardrails, two of which are fixedly connected to both sides of the support plate;

[0029] The two guardrails and the support plate together define the maintenance passage.

[0030] A cooling tower system, the cooling tower system including the noise reduction device between cooling tower groups as described above.

[0031] The beneficial effects of this utility model are:

[0032] This utility model provides a noise reduction device for cooling tower groups. The device includes a sound barrier and a silencer. The sound barrier is installed at the port of the gap between two adjacent cooling tower groups to block noise from the port of the gap, effectively preventing noise from the air inlet of the cooling tower groups from being transmitted outside. By providing clearance holes on the sound barrier, the silencer is positioned corresponding to the clearance holes. This silencer reduces noise while ensuring the air intake requirements of the cooling tower groups. This arrangement improves noise reduction while meeting the air intake requirements of the cooling tower groups. Compared to installing multiple silencers on both sides of each cooling tower group, this solution reduces the number of silencers used, thus lowering noise reduction costs. It also reduces the space occupied by the silencers, ensuring ventilation, increasing the air intake area, and thus increasing the air volume, thereby maintaining the cooling effect of the cooling towers while ensuring noise reduction performance. Attached Figure Description

[0033] Figure 1 This is a plan view of the cooling tower group noise reduction device after it is connected to the cooling tower group according to an embodiment of the present invention;

[0034] Figure 2 This is an elevation view of the cooling tower group noise reduction device after it is connected to the cooling tower group, according to an embodiment of the present invention.

[0035] Figure label:

[0036] 100. Sound barrier; 110. Sound insulation board; 120. Support bracket; 200. Silencer; 300. Cooling tower assembly; 310. Staircase; 400. Maintenance load-bearing component; 410. Support component; 420. Load-bearing plate; 430. Guardrail; 500. Soundproof door. Detailed Implementation

[0037] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0038] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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 of this utility model.

[0039] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0040] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0041] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0042] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0043] See Figure 1 and Figure 2 An embodiment of this utility model provides a noise reduction device between cooling tower groups. The noise reduction device between cooling tower groups includes a sound barrier 100 and a silencer 200. The sound barrier 100 is installed at the port of the gap between two adjacent cooling tower groups 300. The two ends of the sound barrier 100 are respectively connected to the two cooling tower groups 300. The sound barrier 100 is provided with a clearance hole. The silencer 200 is located on one side of the sound barrier 100 and between the two cooling tower groups 300. The silencer 200 corresponds to the clearance hole of the sound barrier 100.

[0044] This invention provides a noise reduction device for cooling tower groups. The device includes a sound barrier 100 and a silencer 200. The sound barrier 100 is installed at the port of the gap between two adjacent cooling tower groups 300 to block noise from the port of the gap between the two adjacent cooling tower groups 300, thereby effectively preventing noise from the air inlet of the cooling tower group 300 from being transmitted to the outside through the port of the gap between the two cooling tower groups 300. By providing clearance holes on the sound barrier 100, the silencer 200 is installed at the corresponding position of the clearance holes on the sound barrier 100. By setting the silencer 200, the air intake requirements of the cooling tower group 300 are met while the noise is reduced. With the above settings, the noise reduction effect can be improved while ensuring the air intake requirements of the cooling tower group 300. Moreover, compared with setting multiple silencers 200 on both sides of each cooling tower group 300, the technical solution of this application reduces the number of silencers 200, thereby reducing noise reduction costs, while also reducing the space occupied by the silencers 200, ensuring ventilation, increasing the air intake area, and thus increasing the air intake volume, so as to ensure the cooling effect of the cooling tower while ensuring noise reduction performance.

[0045] Understandably, the sound barrier 100 is installed at the end of the cooling tower group 300, with its outer surface flush with the outer wall of the cooling tower group 300, thus maintaining the overall aesthetics of the cooling tower group. The silencer 200's noise reduction capacity is selected according to noise reduction requirements. The silencer 200 is used to reduce aerodynamic noise generated during air intake, effectively reducing noise propagation through sound absorption and reflection. Specifically, the silencer 200 is either a plate-type silencer 200 or an array-type silencer 200. Airflow enters the gaps between the cooling tower groups 300 through the air intake channels in the middle of the silencer plates or silencer columns, and then enters the cooling tower through the air inlet of the cooling tower group 300. When sound waves propagate inside the silencer plates, friction converts sound energy into heat energy, which is then dissipated, thereby reducing noise.

[0046] In this embodiment, the height of the silencer 200 is considered to be 0.5-1m higher than the height of the air inlet of the cooling tower. The width of the silencer 200 can be arranged according to the site conditions and noise reduction requirements of the cooling tower group 300. The installation of the silencer 200 allows for smooth ventilation between the cooling tower groups 300, and air can enter the space between the cooling tower groups 300 from the top of the device, making the device have very little impact on the ventilation of the cooling tower.

[0047] like Figure 1 and Figure 2As shown, in one embodiment, the sound barrier 100 is provided with mounting holes, and the noise reduction device between cooling tower groups also includes a soundproof door 500, which is located at the mounting holes and hinged to the sound barrier 100. By providing mounting holes in the sound barrier 100, the soundproof door 500 can be installed. By hinged to the sound barrier 100, sound insulation is achieved while facilitating the passage of maintenance personnel through the soundproof door 500.

[0048] like Figure 1 and Figure 2 As shown, in one embodiment, the sound barrier 100 includes a sound insulation panel 110 and a support bracket 120. The sound insulation panel 110 is positioned at the port of the gap between two adjacent cooling tower groups 300. One end of the support bracket 120 is connected to the sound insulation panel 110, and the other end is connected to the cooling tower group 300. The connection between the sound insulation panel 110 and the cooling tower group 300 is achieved by connecting one end of the support bracket 120 to the sound insulation panel 110 and the other end to the cooling tower group 300. By positioning the sound insulation panel 110 at the port of the gap between two adjacent cooling tower groups 300, noise at the port of the gap between the two adjacent cooling tower groups 300 is blocked, effectively preventing noise from the air inlet of the cooling tower group 300 from being transmitted to the outside through the port of the gap between the two cooling tower groups 300.

[0049] like Figure 1 and Figure 2 As shown, in one embodiment, the cooling tower assembly 300 is provided with an installation plate; the support bracket 120 includes a first support plate and a second support plate, the first support plate being fixedly connected to the installation plate; the second support plate being fixedly connected to the sound insulation plate 110; wherein, at least one of the first support plate and the second support plate is provided with an insertion interface, and one end of the other is inserted into the insertion interface, and the first support plate and the second support plate are fixed by fasteners.

[0050] By setting an mounting plate on the cooling tower assembly 300, fixing the first support plate to the mounting plate, and connecting the second support plate to the sound insulation plate 110, the initial alignment connection between the first support plate and the second support plate is achieved through the mutual insertion between the first support plate and the second support plate. The first support plate and the second support plate are fixed by fasteners to achieve a fixed connection between the sound insulation plate 110 and the mounting plate.

[0051] Specifically, a pre-installed steel plate, which is the aforementioned mounting plate, is provided on the wall of the cooling tower assembly 300. The first support plate is also a steel structure plate. The first support plate is fixed to the mounting plate by welding. The second support plate is fixed to the sound insulation plate 110 by bolts. In one embodiment, the second support plate is provided with a plug-in interface, and the end of the first support plate facing away from the cooling tower assembly 300 is inserted into the plug-in interface. Through holes are provided on the first and second support plates to facilitate the passage of fasteners, such as bolts.

[0052] In one embodiment, the sound insulation panel 110 includes a frame, a panel, and a sound-absorbing layer. The frame has a perforated mounting area; the panel is disposed within the mounting area, with its four edges connected to the frame, and two panels spaced apart to define a sandwich space; the sound-absorbing layer is disposed within the sandwich space.

[0053] A perforated mounting area is provided on the frame to facilitate the connection between the panel and the frame. A sandwich space is formed between the two panels to allow for the installation of a sound-absorbing layer within the sandwich space. This sound-absorbing layer absorbs noise, thereby ensuring the sound insulation performance of the sound barrier 100.

[0054] In one embodiment, the sound insulation panel 110 further includes reinforcing ribs, a plurality of which are spaced apart on the panel and connected to the panel and the frame. The panel is constructed as a corrugated plate. The structural strength of the sound insulation panel 110 is improved by providing multiple reinforcing ribs. By making the panel a corrugated plate, sound insulation and noise reduction performance are improved while simultaneously increasing the structural strength of the panel.

[0055] like Figure 1 and Figure 2 As shown, in one embodiment, the noise reduction device between cooling tower groups further includes a maintenance support member 400. The maintenance support member 400 has a maintenance passageway, and its two ends are respectively connected to staircases 310 on two cooling tower groups 300. The two ends of the maintenance support member 400 are connected to the side staircases 310 of the cooling tower groups 300, forming a complete path for passage between the upper and lower cooling tower groups 300 and between adjacent cooling tower groups 300, facilitating access for maintenance personnel.

[0056] like Figure 1 and Figure 2 As shown, in one embodiment, the maintenance support 400 includes a support 410, a support plate 420, and a guardrail 430. Multiple support 410s are disposed between two cooling tower groups 300, and both ends of each support 410 are respectively connected to the two cooling tower groups 300. The support plate 420 is laid on the support 410. Two guardrails 430 are fixedly connected to both sides of the support plate 420. The two guardrails 430 and the support plate 420 enclose and define the maintenance passage.

[0057] The support member 410 is a steel structure support. The two sides of the steel structure are welded to pre-installed steel plates on the walls of the cooling tower assembly 300 to form a stable overall structure. The supporting steel structure takes into account the overall load of the silencer 200 and the sound barrier 100, as well as the load of the upper maintenance support member 400. Only a support plate 420, such as a checkered steel plate or grating plate, needs to be laid on the upper part of the steel structure. A maintenance passage can be formed by installing guardrails 430 on both sides of the support plate 420.

[0058] Compared to existing technologies that use silencers on both sides of the cooling tower group, the sound barrier in the noise reduction device for cooling tower groups provided in this application not only has a significant noise reduction effect but is also inexpensive. The sound barrier effectively improves the overall noise reduction effect of the device. When maintenance is required on the tower group and transport vehicles need to enter the middle of the group, the sound barrier is easier to disassemble than the silencer. Furthermore, the soundproof door on one side of the sound barrier facilitates the passage of personnel and small equipment during minor maintenance and routine operation within the tower group.

[0059] The sound barrier installed on the upper part of the silencer effectively blocks noise from the cooling tower inlet that bypasses the silencer, improving the overall noise reduction effect of the device. To ensure ventilation between the tower groups, the height of the upper sound barrier should not be too high, preferably 3-6m.

[0060] like Figure 1 and Figure 2 As shown in the figure, this utility model embodiment also provides a cooling tower system, which includes the noise reduction device between cooling tower groups as described above.

[0061] Using the above-mentioned noise reduction device between cooling tower groups in the cooling tower system, the noise reduction effect can be improved while ensuring the air intake requirements of the cooling tower group 300. Moreover, compared with the method of setting multiple silencers 200 on both sides of each cooling tower group 300, the technical solution of this application reduces the number of silencers 200, thereby reducing noise reduction costs, while also reducing the space occupied by the silencers 200, ensuring ventilation, increasing the air intake area, and thus increasing the air intake volume, so as to ensure the cooling effect of the cooling tower while ensuring noise reduction performance.

[0062] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0063] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A noise reduction device for cooling tower groups, characterized in that, The noise reduction device between the cooling tower groups includes: A sound barrier is installed at the port of the gap between two adjacent cooling tower groups. The two ends of the sound barrier are respectively connected to the two cooling tower groups. The sound barrier is provided with clearance holes. A silencer is provided on one side of the sound barrier and located between the two cooling tower groups, and the silencer corresponds to the clearance hole of the sound barrier.

2. The noise reduction device between cooling tower groups according to claim 1, characterized in that, The sound barrier is provided with mounting holes, and the noise reduction device between the cooling tower groups also includes a soundproof door, which is located at the mounting holes and hinged to the sound barrier.

3. The noise reduction device between cooling tower groups according to claim 1, characterized in that, The sound barrier includes: A soundproof panel is installed at the port of the gap between two adjacent cooling tower groups; The support bracket is connected at one end to the sound insulation plate and at the other end to the cooling tower assembly.

4. The noise reduction device between cooling tower groups according to claim 3, characterized in that, The cooling tower assembly is equipped with a mounting plate; the support bracket includes: A first support plate, which is fixedly connected to the mounting plate; The second support plate is fixedly connected to the sound insulation plate; In this configuration, at least one of the first support plate and the second support plate is provided with an insertion interface, and one end of the other support plate is inserted into the insertion interface. The first support plate and the second support plate are fixed together by fasteners.

5. The noise reduction device between cooling tower groups according to claim 3, characterized in that, The sound insulation panel includes: The frame has a perforated installation area. A panel is disposed in the installation area, the four edges of the panel are connected to the frame, and two panels are spaced apart to define a sandwich space; A sound-absorbing layer is disposed within the interlayer space.

6. The noise reduction device between cooling tower groups according to claim 5, characterized in that, The sound insulation panel also includes: Reinforcing ribs, multiple reinforcing ribs are spaced apart on the panel and connected to the panel and the frame.

7. The noise reduction device between cooling tower groups according to claim 5, characterized in that, The panel is constructed as a corrugated plate.

8. The noise reduction device between cooling tower groups according to claim 1, characterized in that, The noise reduction device between cooling tower groups also includes: The maintenance support is provided with a maintenance passage, and both ends of the maintenance support are respectively connected to the stair passages on the two cooling tower groups.

9. The noise reduction device between cooling tower groups according to claim 8, characterized in that, The maintenance support component includes: Support members, multiple support members are disposed between the two cooling tower groups, and the two ends of each support member are respectively connected to the two cooling tower groups; A bearing plate is laid on the support member; Guardrails, two of which are fixedly connected to both sides of the support plate; The two guardrails and the support plate together define the maintenance passage.

10. A cooling tower system, characterized in that, The cooling tower system includes a noise reduction device between cooling tower groups as described in any one of claims 1-9.

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