Low noise cooling tower

Abstract

The application relates to a low-noise cooling tower which comprises a tower body, a filler arranged in the tower body, a spraying device arranged on the tower body, a ventilation device arranged on the tower body, a flow guide device arranged in the tower body, and a water collecting pool arranged below the tower body, wherein the flow guide device is connected with the filler and the water collecting pool respectively, and is used for receiving the cooling medium flowing down from the filler and guiding the cooling medium to the water collecting pool. The dripping sound of the cooling medium in the cooling tower is a major source of noise. According to the above technical scheme, the cooling medium in the tower body is guided to the water collecting pool by the flow guide device for collection. Compared with the case that the cooling medium directly drips into the water collecting pool, the flow guide mode makes the cooling medium flow into the water collecting pool at a slower speed, the sound is lower, and the noise generated by the cooling tower during operation is effectively reduced.

Description

Technical Field

[0001] This application relates to the field of cooling tower equipment, and more particularly to a low-noise cooling tower. Background Technology

[0002] A cooling tower is a device that uses water as a circulating coolant to absorb heat from a system and release it into the atmosphere in order to lower the water temperature.

[0003] Cooling towers are typically barrel-shaped, with packing material filling the middle. Their cooling principle involves distributing a cooling medium (usually water) evenly over the packing material from the top of the tower via a spray system. Then, air flowing upwards cools the cooling medium on the packing material through thermal interaction. The evaporation of the cooling medium also carries away most of the heat. After cooling, the medium flows to the bottom of the tower and is collected. It has a good heat dissipation effect and is therefore widely used in fields requiring heat dissipation.

[0004] However, in actual use, cooling towers emit a lot of noise, which can significantly disrupt the daily lives of nearby residents. Summary of the Invention

[0005] To address the problem of excessive noise from cooling towers during operation, which disturbs residents, this application provides a low-noise cooling tower.

[0006] The low-noise cooling tower provided in this application adopts the following technical solution: A low-noise cooling tower includes a tower body, inside which packing material is disposed, a spray device is disposed on the tower body, a ventilation device is disposed on the tower body, a flow guiding device is disposed inside the tower body, and a water collection tank is disposed below the tower body. The flow guiding device is connected to the packing material and the water collection tank respectively, and the flow guiding device is used to receive the cooling medium flowing down from the packing material and to guide the cooling medium into the water collection tank.

[0007] The dripping sound of the cooling medium inside the cooling tower is a major source of noise. By adopting the above technical solution, the cooling medium inside the cooling tower is guided to the water collection pool through a flow guiding device for collection. Compared with letting the cooling medium drip directly into the water collection pool, the flow guiding method makes the cooling medium flow into the water collection pool at a slower speed and produces less noise, effectively reducing the noise generated by the cooling tower during operation.

[0008] Optionally, the flow guiding device includes several flow guiding plates installed inside the tower body. The flow guiding plates are divided into several groups, and the flow guiding plates in any group are connected end to end. The flow guiding plates are all inclined. The inclination directions of two adjacent flow guiding plates in the same group are opposite. The flow guiding plates in the same horizontal direction are parallel to each other. The top flow guiding plate of any group is connected to the packing, and the bottom flow guiding plate is connected to the water collection tank.

[0009] By adopting the above technical solution, the cooling medium flowing down from the packing flows along the guide plate to the water collection tank for collection. Since the guide plate is distributed in a wave shape, the flow path of the cooling medium is increased. At the same time, since an air duct is formed between two sets of adjacent guide plates, the air flows along the air duct, increasing the amount of air passing through the cooling medium. The combination of the two further improves the air cooling effect of the cooling medium.

[0010] Optionally, the ventilation device includes multiple fans, which are installed at the lower end of the tower body. Multiple air inlets are provided on the side wall of the tower body, and multiple air inlet pipes corresponding to the air inlets are installed on the side wall of the tower body. The air inlet pipes are connected to the air inlets one by one. The outer wall of the air inlet pipes is covered with a sound insulation layer, and the tower body is covered with a sound insulation layer. The air outlet direction of the fans is parallel to the guide plate.

[0011] By adopting the above technical solution, the fan is located inside the tower, so the noise from the fan's operation is absorbed by the tower's sound insulation layer. At the same time, due to the multi-point air intake, the air intake speed at each air inlet is slower, resulting in less noise. Furthermore, the presence of air intake pipes makes it less likely for noise inside the tower to diffuse to the outside through the air inlets.

[0012] Optionally, a rubber edge is provided on the outer edge of the guide plate, and a plurality of sliding grooves corresponding one-to-one with the rubber edge are provided on the side wall of the tower body. The rubber edge is slidably installed in the sliding groove and extends out of the sliding groove. After the guide plate is installed, in the same group of guide plates, the rubber edge on the lower side of the guide plate located above abuts against the rubber edge on the upper side of the guide plate located below.

[0013] By adopting the above technical solution, the guide plate is installed on the tower body through the cooperation between the rubber edge and the slide groove. When the cooling medium impacts the guide plate, the vibration of the guide plate will be buffered by the rubber edge, so that the vibration generated by the guide plate is smaller and the vibration amplitude of the guide plate is smaller, thereby reducing the noise generated by the vibration of the guide plate. At the same time, because the guide plate and the slide groove are flexibly connected by the rubber edge, the guide plate is less likely to wear due to vibration.

[0014] Optionally, a barrier net is provided above the water collection tank and below the guide plate. The barrier net is connected to the inner wall of the tower body, and the vertical projection of the guide plate is located on the barrier net.

[0015] By adopting the above technical solution, the barrier net is used to divide the cooling medium flowing down from the guide plate, so that the cooling medium falls into the water collection pool in a smaller volume, and at the same time, the speed of the cooling medium falling is reduced, further reducing the noise generated by the cooling medium falling into the water collection pool.

[0016] Optionally, the spraying device includes several water pipes installed inside the upper part of the tower body. Several nozzles are installed at intervals along the length of the lower side of the water pipes. The water pipes are parallel to each other and the number is even. The nozzles of two adjacent water pipes correspond one-to-one and the spraying directions are inclined to each other. The water pipes are connected to the output end of the cooling medium.

[0017] By adopting the above technical solution, the cooling medium sprayed from the nozzles on the water pipe impacts each other, and the impacting cooling medium is dispersed, so that it can be more evenly sprinkled on the packing material, further improving the cooling efficiency.

[0018] Optionally, the slide groove is composed of a first limiting strip and a second limiting strip. The first limiting strip is installed on the inner wall of the tower body, and the second limiting strip is slidably installed on the inner wall of the tower body. The first limiting strip and the second limiting strip are parallel, and the second limiting strip slides in a direction close to or away from the first limiting strip. A fixing mechanism is provided on the tower body to fix the second limiting strip.

[0019] By adopting the above technical solution, when installing the guide plate, firstly, the second limiting strip is slid away from the first limiting strip, then the rubber edge of the guide plate is placed between the first and second limiting strips, the second limiting strip is pushed to press against the rubber edge, and then the second limiting strip is fixed to the tower body by the fixing mechanism, thus completing the installation of the guide plate. The installation position of the guide plate is more convenient during installation, and the fixing of the guide plate is simpler.

[0020] Optionally, the second limiting strip is located below the first limiting strip. A plurality of mounting grooves corresponding one-to-one with the second limiting strip are provided on the inner wall of the tower body. One side of the second limiting strip is slidably installed in the mounting groove. The fixing mechanism includes a trapezoidal first wedge block installed on the side of the second limiting strip located in the mounting groove. A second wedge block is also slidably installed in the mounting groove. The first and second wedge blocks can be joined together. When the second wedge block is slidably installed into the mounting groove and joined with the first wedge block, one side of the second limiting strip abuts against the side wall of the mounting groove. A fixing hole is provided through the second wedge block, and a fixing bolt passes through the fixing hole. One end of the fixing bolt passes through the fixing hole and is threaded onto the inner wall of the tower body. The fixing bolt pushes the second wedge block against the inner wall of the tower body. A stop block is provided at the lower end of the second limiting strip at the bottom of the same column. The stop block is used to prevent the rubber edge from sliding.

[0021] By adopting the above technical solution, since the second limiting strip is located below the first limiting strip, when installing the guide plate, the rubber edge of the guide plate can be placed on the second limiting strip first, and then the second limiting strip can be pushed until the rubber edge of the guide plate is pressed against the first limiting strip. The installation of the guide plate is more convenient. Furthermore, by turning the fixing bolt, the second wedge can be pushed to slide in the mounting groove. The sliding direction of the second wedge is not easily deviated. At the same time, because the second limiting strip is below the first limiting strip, under the action of the weight of the second limiting strip itself and the weight of the guide plate, the second limiting strip presses against the bolt cap of the fixing bolt. This allows the guide plate to be stably pushed towards the first limiting strip by rotating the fixing bolt. At the same time, the movement can be stopped at any time to adjust the position of the guide plate, making the installation of the guide plate more convenient and the installation position of the guide plate more accurate.

[0022] In summary, this application includes at least one of the following beneficial technical effects: 1. The cooling medium inside the cooling tower is guided to the water collection pool through a flow guiding device for collection. Compared with the cooling medium dripping directly into the water collection pool, the flow guiding method makes the cooling medium flow into the water collection pool at a slower speed and produces less noise, effectively reducing the noise generated by the cooling tower during operation. 2. The cooling medium flowing down from the packing flows along the guide plate to the collection tank for collection. Since the guide plate is distributed in a wave shape, it increases the flow path of the cooling medium. At the same time, since an air duct is formed between two sets of adjacent guide plates, the air flows along the air duct, increasing the amount of air passing through the cooling medium. The combination of the two further improves the air cooling effect of the cooling medium. 3. Since the second limiting strip is located below the first limiting strip, when installing the air deflector, the rubber edge of the air deflector can be placed on the second limiting strip first, and then the second limiting strip can be pushed until the rubber edge of the air deflector is pressed against the first limiting strip. This makes the installation of the air deflector more convenient. Furthermore, by turning the fixing bolt, the second wedge can be pushed to slide in the mounting groove. The sliding direction of the second wedge is not easily deviated. Because the second limiting strip is below the first limiting strip, under the action of the weight of the second limiting strip itself and the weight of the air deflector, the second limiting strip presses against the bolt cap. This allows the air deflector to be stably pushed towards the first limiting strip by turning the fixing bolt. At the same time, the movement can be stopped at any time to adjust the position of the air deflector, making the installation of the air deflector more convenient and the installation position of the air deflector more accurate. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural schematic diagram in the front view direction of this application.

[0024] Figure 2 This is a three-dimensional structural diagram of the rear view of this application.

[0025] Figure 3 This is a cross-sectional schematic diagram of the water pipe in this application.

[0026] Figure 4 This is a cross-sectional schematic diagram of this application.

[0027] Figure 5 This is an exploded schematic diagram of the chute of the tower body in this application.

[0028] Figure 6 This is a schematic diagram of the interconnected structure of the guide vanes of this application. The baffles are not shown in the figure.

[0029] Those skilled in the art will understand that the elements in the accompanying drawings are shown for simplicity and clarity and are not necessarily drawn to scale. For example, the size and position of some elements in the drawings may be enlarged relative to other elements to aid in understanding the embodiments of the invention.

[0030] Reference numerals: 1. Tower body; 11. Air inlet; 12. Mounting groove; 2. Packing material; 3. Spraying device; 31. Water pipe; 32. Sprinkler head; 4. Ventilation device; 41. Fan; 42. Air inlet pipe; 5. Flow guiding device; 51. Flow guiding plate; 511. Rubber edge; 6. Water collection pool; 61. Barrier net; 7. Slide groove; 71. First limiting strip; 72. Second limiting strip; 8. Fixing mechanism; 81. First wedge; 82. Second wedge; 821. Fixing hole; 83. Fixing bolt; 9. Sound insulation layer. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0032] This application discloses a low-noise cooling tower, as shown in the embodiments below. Figure 1 and Figure 2 The system includes a rectangular tower body 1, which is placed vertically. A packing material 2 is fixedly installed in the upper part of the tower body 1. A spray device 3, a ventilation device 4, a flow guiding device 5, and a water collection tank 6 are also installed on the tower body 1 to cool the cooling medium. In this embodiment, water is used as the cooling medium; the term "clean water" will be used to refer to the cooling medium in the following text.

[0033] Reference Figure 1 and Figure 2 The aforementioned spraying device 3 includes several water pipes 31 fixedly installed inside the top of the tower body 1. The water pipes 31 are horizontally arranged, and the number of water pipes 31 is even. Several nozzles 32 are threadedly installed on the lower side of the water pipes 31, and the nozzles 32 are evenly spaced along the length of the water pipes 31.

[0034] Reference Figure 1 and Figure 3 The nozzles 32 on any two adjacent water pipes 31 are one-to-one, and the spraying directions of the nozzles 32 on any two adjacent water pipes 31 are tilted towards each other or away from each other. When spraying clean water, the clean water sprayed from the two water pipes 31 with the spraying directions of the nozzles 32 are tilted towards each other, so that the water flow is dispersed and more evenly distributed on the packing 2, and then flows down along the packing 2, which further improves the effect of air cooling of the water flow.

[0035] Reference Figure 4 and Figure 5 The ventilation device 4 includes several guide plates 51, which are evenly divided into three groups. Each group of guide plates 51 is installed inside the tower body 1 along the height direction of the tower body 1. The guide plates 51 are inclined, and the inclination directions of two adjacent guide plates 51 in the same group are opposite. A rubber edge 511 is installed around the outer edge of the guide plate 51. A sliding groove 7 is provided on the inner wall of the tower body 1, and the rubber edge 511 of the guide plate 51 is slidably inserted into the sliding groove 7.

[0036] Reference Figure 4 and Figure 6 In the same group of two adjacent guide plates 51, the lower end of the upper guide plate 51 is attached to and abuts against the upper end of the lower guide plate 51, and the lower end of the slide groove 7 of the lowest one is closed. Through the above-mentioned installation method of guide plates 51, the guide plates 51 can be detachably installed in the tower body 1.

[0037] Reference Figure 1 and 4The water collection tank 6 is fixedly installed inside the lower part of the tower body 1. The uppermost guide plate 51 of the same group is connected to the lower side of the packing 2, and the lowermost guide plate 51 of the same group is connected to the water collection tank 6. The clean water flowing down from the packing 2 is received and guided by the guide plate 51, and then flows along the guide plate 51 to the water collection tank 6 for collection. A barrier net 61 is also fixedly installed between the water collection tank 6 and the guide plate 51. The vertical projection of the three groups of guide plates 51 is all located on the barrier net 61. After the water flows down from the guide plate 51, it is separated into multiple small streams by the barrier net 61 and then falls into the water collection tank 6. The flow velocity and volume of the water flow are reduced, and the generated noise is further reduced.

[0038] Reference Figure 4 and Figure 5 The sliding groove 7 on the tower body 1 is formed by a first limiting strip 71 and a second limiting strip 72. The first limiting strip 71 and the second limiting strip 72 are parallel to each other, and the first limiting strip 71 is located above the second limiting strip 72. An installation groove 12 is provided on the inner wall of the tower body 1. One side of the second limiting strip 72 is slidably installed in the installation groove 12, and the sliding direction of the second limiting strip 72 is perpendicular to the length direction of the first limiting strip 71. A fixing mechanism 8 is provided on the tower body 1. The fixing mechanism 8 includes a first wedge 81 and a second wedge 82 that are elongated. The cross-section of the first wedge 81 and the second wedge 82 are both trapezoidal, and the first wedge 81 and the second wedge 82 can be spliced ​​together.

[0039] Reference Figure 5 The first wedge 81 is integrally formed on the side of the second limiting strip 72 opposite to the first limiting strip 71, and the length direction of the first wedge 81 is parallel to the length direction of the second limiting strip 72. The second wedge 82 is slidably installed in the mounting groove 12. A fixing hole 821 is formed through the second wedge 82, and a fixing bolt 83 is slidably inserted in the fixing hole 821. One end of the fixing bolt 83 passes through the fixing hole 821 and is threaded to the bottom of the mounting groove 12.

[0040] Reference Figure 5 After tightening the fixing bolt 83, one side of the second wedge 82 abuts against the bottom of the mounting groove 12, the first wedge 81 and the second wedge 82 are joined together, and at this time, one side wall of the second limiting strip 72 abuts against the side wall of the mounting groove 12. At this time, a sliding groove 7 is formed between the first limiting strip 71 and the second limiting strip 72.

[0041] A stop block is integrally provided at the lower end of the second limiting strip 72, which cooperates with the guide plate 51 located at the bottom of the same group. The stop block extends toward the first limiting strip 71 to prevent the rubber edge 511 of the guide plate 51 from sliding.

[0042] Reference Figure 1 and Figure 4The ventilation device 4 includes two fans 41 fixedly installed inside the tower body 1. The fans 41 are located at the lower end of the tower body 1, and several air inlets 11 are provided through the side wall of the tower body 1 at the air inlets 11 of the fans 41. Several air inlet pipes 42, equal in number to the number of air inlets 11, are also fixedly installed on the outer wall of the tower body 1, and the air inlet pipes 42 cover the air inlets 11 one by one. The outer wall of the tower body 1 and the air inlet pipes 42 are covered with a sound insulation layer 9.

[0043] Reference Figure 1 and Figure 4 The fan 41 blows air in a direction parallel to the surface of the guide plate 51, and the airflow flows along the air duct formed by the guide plate 51 to cool the water on the guide plate 51.

[0044] The implementation principle of a low-noise cooling tower in this application embodiment is as follows: the water flow is guided by the guide plate 51, so that the water flow along the guide plate 51 to the water collection pool 6, thereby reducing the noise when the water falls.

[0045] When installing the guide plate 51, first place the rubber edge 511 of the guide plate 51 onto the second limiting strip 72, then rotate the fixing bolt 83 to push the second wedge 82 to slide into the mounting groove 12, thereby pushing the first wedge 81 and the second limiting strip 72 to move towards the first limiting strip 71. After tightening the fixing bolt 83, the second limiting strip 72 and the first limiting strip 71 clamp the rubber edge 511 to complete the positioning of the guide plate 51.

[0046] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A low-noise cooling tower, comprising a tower body (1), wherein packing (2) is disposed inside the tower body (1), a spray device (3) is disposed on the tower body (1), and a ventilation device (4) is disposed on the tower body (1), characterized in that: The tower body (1) is equipped with a flow guiding device (5) inside, and a water collection tank (6) is provided below the tower body (1). The flow guiding device (5) is connected to the packing (2) and the water collection tank (6) respectively. The flow guiding device (5) is used to receive the cooling medium flowing down from the packing (2) and to guide the cooling medium into the water collection tank (6). The flow guiding device (5) includes several flow guiding plates (51) installed inside the tower body (1). The flow guiding plates (51) are divided into several groups. The flow guiding plates (51) in any group are connected end to end. The flow guiding plates (51) are all inclined. The inclination directions of two adjacent flow guiding plates (51) in the same group are opposite. The flow guiding plates (51) in the same horizontal direction are parallel to each other. The top flow guiding plate (51) of any group is connected to the packing (2), and the bottom flow guiding plate (51) is connected to the packing (2). The guide plate (51) is connected to the water collection tank (6); a rubber edge (511) is provided on the outer edge of the guide plate (51), and a plurality of sliding grooves (7) corresponding one-to-one with the rubber edge (511) are provided on the side wall of the tower body (1). The rubber edge (511) is slidably installed in the sliding groove (7) and extends out from the sliding groove (7). After the guide plate (51) is installed, the rubber edge (511) on the lower side of the guide plate (51) in the same group abuts against the rubber edge (511) on the upper side of the guide plate (51) in the same group; the sliding groove (7) is composed of a first limiting strip (71) and a second limiting strip (72). The first limiting strip (71) is installed on the inner wall of the tower body (1), and the second limiting strip (72) is installed on the inner wall of the tower body (1). The first limiting strip (71) and the second limiting strip (72) are parallel to each other. The second limiting strip (72) slides in a direction close to or away from the first limiting strip (71). The tower body (1) is provided with a fixing mechanism (8) for fixing the second limiting strip (72).The second limiting strip (72) is located below the first limiting strip (71). The inner wall of the tower body (1) has several mounting grooves (12) corresponding one-to-one with the second limiting strip (72). One side of the second limiting strip (72) is slidably installed in the mounting groove (12). The fixing mechanism (8) includes a trapezoidal first wedge (81) installed on the side of the second limiting strip (72) located in the mounting groove (12). A second wedge (82) is also slidably installed in the mounting groove (12). The first wedge (81) and the second wedge (82) can be joined together. When the second wedge (82) is slidably installed into the mounting groove (12) and joined with the first wedge (81), one side of the second limiting strip (72) abuts against the side wall of the mounting groove (12). A fixing hole (821) is provided through the top, and a fixing bolt (83) is inserted through the fixing hole (821). One end of the fixing bolt (83) passes through the fixing hole (821) and is threaded onto the inner wall of the tower body (1). The fixing bolt (83) pushes the second wedge (82) to press against the inner wall of the tower body (1). A stop is provided at the lower end of the second limiting strip (72) located at the bottom of the same column. The stop is used to prevent the rubber edge (511) from sliding.

2. The low-noise cooling tower according to claim 1, characterized in that: The ventilation device (4) includes multiple fans (41), which are installed at the lower end of the tower body (1). Multiple air inlets (11) are provided on the side wall of the tower body (1). Multiple air inlet pipes (42) corresponding to the air inlets (11) are installed on the side wall of the tower body (1). The air inlet pipes (42) are connected to the air inlets (11) in a one-to-one correspondence. The outer wall of the air inlet pipes (42) is covered with a sound insulation layer (9). The tower body (1) is covered with a sound insulation layer (9). The air outlet direction of the fans (41) is parallel to the guide plate (51).

3. A low-noise cooling tower according to claim 1, characterized in that: A barrier net (61) is provided above the water collection pool (6) and below the guide plate (51). The barrier net (61) is connected to the inner wall of the tower body (1). The vertical projection of the guide plate (51) is located on the barrier net (61).

4. A low-noise cooling tower according to claim 1, characterized in that: The spraying device (3) includes several water pipes (31) installed inside the upper part of the tower body (1). Several nozzles (32) are installed at intervals along the length of the lower side of the water pipes (31). The water pipes (31) are parallel to each other and the number is even. The nozzles (32) of two adjacent water pipes (31) correspond one-to-one and the spraying directions are inclined to each other. The water pipes (31) are connected to the output end of the cooling medium.

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