Central air conditioning cooling tower
By installing a cover plate assembly on top of the cooling tower water tank, the problems of water temperature rise and pollution caused by direct sunlight were solved, achieving energy saving, consumption reduction, and lower equipment maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Filing Date
- 2025-08-07
- Publication Date
- 2026-07-14
AI Technical Summary
Existing central air conditioning cooling towers, when exposed to direct sunlight, experience increased water temperature in the distribution tanks, resulting in poor cooling performance, increased electricity consumption, and easy formation of algae and dust pollution, requiring frequent cleaning and scaling, which affects equipment lifespan and costs.
Install a removable cover assembly, including a cover plate, limiters, and seals, on top of the water distribution tank of the cooling tower to block sunlight, prevent debris from entering, lower water temperature, and reduce contamination.
It effectively reduces the water temperature in the water distribution tank, reduces electricity consumption, extends the cleaning cycle, prevents algae growth and scaling, extends equipment life, and reduces the labor intensity and maintenance costs of operators.
Smart Images
Figure CN224499178U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a cooling tower, and more particularly to a central air conditioning cooling tower. Background Technology
[0002] A central air conditioning cooling tower is a device that uses water as a circulating coolant to absorb heat from a system and release it into the atmosphere to lower the water temperature. The working principle of the cooling tower is as follows: hot water is sprayed onto the surface of the water-spraying packing material and then comes into contact with the passing moving air. The hot water then exchanges heat with the cold air, thus cooling the water. The cooled water then falls into a collection basin, where it is pumped to a heat exchanger to absorb heat again.
[0003] For an open crossflow cooling tower, the tower body has at least one fan arranged horizontally in sequence, preferably more than two fans. Water distribution troughs are installed on the tower body on both sides of the fans (fans arranged from left to right). Packing material is placed below the water distribution troughs. The fans are positioned between the water distribution troughs and the packing material on both sides. Water from the heat exchanger is sent to the water distribution troughs on both sides through water pipes. Multiple drain holes are evenly distributed at the bottom of the water distribution troughs, communicating with the bottom surface. Water in the water distribution troughs drips onto the packing material through the drain holes. Then, the operation of the fans cools the water on the packing material. Finally, the water dripping from the packing material falls into a collection basin and is returned to the heat exchanger. However, this structure has the following drawbacks:
[0004] 1. Cooling towers are generally placed on rooftops or outdoors, especially in shopping malls or hotels. Rooftops are typically placed on rooftops because they receive direct sunlight, which causes the water temperature in the water distribution tanks to be relatively higher (especially in the high temperatures of summer, the water temperature can increase by 1°C-3°C). This results in poorer cooling performance and higher electricity consumption. For shopping malls and hotels in particular, every 1% increase in electricity consumption (which is commercial electricity and therefore more expensive than residential electricity) significantly increases costs.
[0005] 2. Direct sunlight makes it easier for algae to grow, resulting in a dirty water distribution tank that needs to be cleaned frequently.
[0006] 3. Since the top of the water distribution tank is directly exposed, external dust and debris (especially in windy or rainy weather) will enter the water distribution tank, requiring frequent cleaning of the water distribution tank and rinsing of the packing. At the same time, because the water is relatively dirty, it is easy for scale to form inside the water pipes of the heat exchanger, affecting the heat dissipation of the heat exchanger, making it prone to damage, or reducing its service life. Summary of the Invention
[0007] The purpose of this utility model is to provide a central air conditioning cooling tower. By using this structure, energy consumption can be effectively saved, operating costs can be reduced, cleaning frequency can be reduced, and the labor intensity of operators can be reduced.
[0008] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a central air conditioning cooling tower, comprising a tower body, at least one fan on the tower body, and an upward-opening water distribution trough on each of the two sides of the top of the tower body in the width direction. Each water distribution trough is provided with filler below it. The water distribution troughs and fillers on both sides are respectively arranged on both sides of the fan. A cover plate assembly is installed on the water distribution trough. The cover plate assembly includes at least one cover plate extending along the length direction of the water distribution trough. The cover plate is used to open or close the top of the water distribution trough.
[0009] In the above technical solution, the cover plate is detachably connected to the tower body.
[0010] In the above technical solution, at least one first limiting member is provided on the top two sides of the cover plate in the width direction, and a second limiting member is provided on the top of the tower body on both sides of the water distribution trough in the width direction, which cooperates with the first limiting member. The first limiting member and the second limiting member lock the cover plate on the tower body at the water distribution trough.
[0011] In the above technical solution, the bottom surface of the cover plate in the width direction abuts against the top surface of the tower body on both sides in the width direction of the water distribution trough.
[0012] In the above technical solution, shock-absorbing sealing elements are provided on both sides of the bottom surface of the cover plate in the width direction, and the bottom surfaces of the shock-absorbing sealing elements on both sides abut against the top surface of the tower body on both sides of the width direction of the water distribution trough.
[0013] In the above technical solution, the cover plate has downwardly extending extension plates on both sides along its length, and the extension plates are inserted into the water distribution trough.
[0014] And / or, the two ends of the extension plate are respectively disposed close to the two side walls in the width direction of the water distribution trough, or the two ends of the extension plate are respectively in contact with the two side walls in the width direction of the water distribution trough.
[0015] And / or, the outer side wall of the extension plate is disposed close to the outer side wall of the extension plate on the side adjacent to the cover plate;
[0016] And / or, the outer wall of the outermost extension plate of the cover plate assembly contacts the inner wall of one side of the water distribution trough along its length.
[0017] And / or, the outer wall of the extension plate is provided with a flexible seal.
[0018] In the above technical solution, the top of the cover plate is provided with at least one handle.
[0019] In the above technical solution, one side of the cover plate is rotatably connected to the tower body on one side of the water distribution trough, and the other side of the cover plate abuts against the top surface of the tower body on the other side of the water distribution trough.
[0020] And / or, one side of the cover plate is rotatably connected to the tower body via a connector, and the other side of the cover plate is locked to the tower body via a limiting member.
[0021] In the above technical solution, at least one cooling water pipe is arranged at each of the water distribution troughs, and the outlet of the cooling water pipe is inserted into the corresponding water distribution trough.
[0022] And / or, the cooling water pipe is arranged vertically, and at least one side of the cover plate at the cooling water pipe is provided with a notch in the length direction, and the middle part of the cooling water pipe is accommodated in the notch.
[0023] In the above technical solution, a water receiving tray is provided below the packing material; the bottom of the water distribution trough is provided with a number of water drop holes facing the packing material.
[0024] And / or, there are at least two fans, and multiple fans are arranged sequentially along the length of the tower body, with the fans positioned between the water distribution troughs on both sides.
[0025] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:
[0026] 1. In this utility model, by installing a cover plate assembly on the top of the water distribution tank, the water distribution tank can be opened and closed using the cover plate assembly. This can block direct sunlight, reduce water temperature, thereby reducing the energy consumption required for heat dissipation, reducing electricity consumption, and reducing operating costs.
[0027] 2. In this utility model, a cover plate assembly is installed on the top of the water distribution tank, which allows the water temperature in the water distribution tank to be reduced by 1℃-3℃ in hot weather compared to a structure without a cover plate assembly. This reduces the overall power consumption of the equipment by about 3% to 7%, effectively reducing the operating cost.
[0028] 3. By installing a cover plate assembly on the top of the water distribution tank in this utility model, it can reduce the entry of external debris into the water distribution tank, prevent algae and other growth caused by direct sunlight, improve the cleanliness of the cooling water, reduce the cleaning frequency of the water distribution tank, reduce the labor intensity of operators, effectively reduce the problem of scale buildup in the internal water pipes of the equipment, ensure the heat dissipation effect of the equipment, extend the service life of the equipment, and reduce the maintenance rate.
[0029] 4. In this utility model, the cover plate is limited to the tower body by the first limiting member and the second limiting member, thereby preventing the cover plate from being blown away and causing safety hazards;
[0030] 5. In this utility model, extension plates that are inserted into the water distribution trough are provided on both sides of the cover plate to reduce the gap between adjacent cover plates, minimize the entry of external debris into the water distribution trough, and ensure the cleanliness of the cooling water in the water distribution trough.
[0031] 6. In this utility model, a shock-absorbing sealing element is provided on the bottom surface of the cover plate to contact the tower body, thereby reducing the vibration and noise caused by wind and other factors, improving the user experience, and preventing damage to the tower body. Attached Figure Description
[0032] Figure 1 This is a schematic diagram of the structure in Embodiment 1 of this utility model;
[0033] Figure 2 yes Figure 1 Top view;
[0034] Figure 3 This is a top view of the cooling tower in Embodiment 1 of this utility model (without the cover plate assembly installed);
[0035] Figure 4 This is a schematic diagram of the cover plate in Embodiment 1 of this utility model;
[0036] Figure 5 yes Figure 4 Top view;
[0037] Figure 6 yes Figure 4 The left view.
[0038] The components are: 1. Tower body; 2. Fan; 3. Water distribution trough; 4. Packing material; 5. Cover plate assembly; 6. Cover plate; 7. Cooling water pipe; 8. Water receiving tray; 9. Drain hole; 10. First limiting component; 11. Second limiting component; 12. Shock-absorbing sealing component; 13. Extension plate; 14. Handle; 15. Notch; 16. Main pipe. Detailed Implementation
[0039] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0040] Example 1: See Figure 1-6 As shown, a central air conditioning cooling tower includes a tower body 1, on which at least one fan 2 is provided. On the top two sides of the tower body 1 in the width direction, there is an upward-opening water distribution trough 3. A packing material 4 is provided below each water distribution trough 3. The water distribution trough 3 and the packing material 4 are respectively arranged on both sides of the fan 2. A cover plate assembly 5 is installed on the water distribution trough 3. The cover plate assembly 5 includes at least one cover plate 6 extending along the length direction of the water distribution trough 3. The cover plate 6 is used to open or close the top of the water distribution trough 3.
[0041] In this invention, each of the water distribution troughs 3 is provided with at least one cooling water pipe 7, the outlet of which is inserted into the corresponding water distribution trough. The water distribution trough is used to connect with the heat exchanger and to send the high-temperature water discharged from the heat exchanger into the water distribution trough. A water receiving tray 8 is provided below the packing material 4. The bottom of the water distribution trough 3 is provided with several water drop holes 9 facing the packing material 4. A spray head can also be installed at the bottom of each water drop hole to spray the water from the water drop hole onto the packing material. The water on the packing material evaporates and dissipates heat. At the same time, the fan works to drive the air and the water on the packing material to exchange heat and cool the water. The cooled water is collected by the water receiving tray and sent back to the heat exchanger. Because the water temperature delivered by the heat exchanger through the cooling water pipes is relatively high, the water temperature entering the water distribution tank is also relatively high. Under normal circumstances, such as in shopping malls, hotels, or other office buildings, cooling towers are usually placed on the rooftop, without occupying ground space or being exposed. However, due to direct sunlight, the water temperature in the water distribution tank will rise further, generally by about 1°C to 5°C compared to the water temperature delivered by the heat exchanger, usually by about 1°C. This results in the water temperature being higher overall after cooling and being returned to the heat exchanger, leading to higher energy consumption (more electricity) and higher operating costs. Therefore, in this embodiment, a cover plate assembly is provided on the water distribution tank. The cover plate assembly includes at least one cover plate. The number of cover plates is adjusted according to the length of the water distribution tank, preferably more than two cover plates. The number of cover plates and the corresponding length of the cover plates are designed according to the length of the water distribution tank. Taking the direction shown in the figure as an example, two fans are arranged from left to right. Six cover plates are provided on each water distribution tank to cover the top of the water distribution tank. This can prevent direct sunlight from causing the water temperature in the water distribution tank to rise. Compared with the structure without cover plates, the average water temperature can be reduced by at least 1°C. With a 1°C reduction in water temperature, the heat exchanger can save about 5% of electricity. For central air conditioning, especially in large areas such as hotels, shopping malls, and office buildings that require air conditioning for cooling (commercial electricity), it can greatly reduce energy consumption (reduce electricity consumption) and greatly reduce operating costs. Meanwhile, because the water in the distribution tank is protected from direct sunlight, it can reduce the occurrence of algae or extend the algae's occurrence and growth cycle. It can also prevent outdoor dust and debris from entering the distribution tank and contaminating the water, thereby extending the cleaning cycle of the distribution tank, reducing the labor intensity of operators, and reducing cleaning costs. Furthermore, the cleanliness of the water returning to the heat exchanger can be guaranteed, which can also reduce scale buildup in the water pipes of the heat exchanger, ensure the heat dissipation effect of the heat exchanger, extend its service life, and reduce the maintenance rate.
[0042] In this embodiment, the cover plate is detachably connected to the tower body. This facilitates the installation, disassembly, and replacement of the cover plate. Furthermore, the cover plate can be added to an existing, normally functioning cooling tower, saving energy and reducing subsequent operating costs.
[0043] In this embodiment, see Figure 2 , 4 As shown, at least one first limiting member 10 is provided on each of the top two sides of the cover plate 6 in the width direction, and a second limiting member 11 is provided on the top of the tower body 1 on both sides of the water distribution trough 3 in the width direction, which cooperates with the first limiting member 10. The first limiting member 10 and the second limiting member 11 lock and limit the cover plate 6 to the tower body 1 at the water distribution trough 3. In this embodiment, two first limiting members are provided on the front and rear sides of the top of the cover plate, respectively.
[0044] Since the cooling tower is located outdoors, there is a risk of the cover plate being blown off or away, especially in strong winds and heavy rain. In particular, if it is blown off and falls from an upper floor, it poses a significant safety hazard. Therefore, a first and second limiting device are installed. After the cover plate is placed on the tower body, the first and second limiting devices work together to lock and limit the cover plate to the tower body on the water distribution trough, preventing the cover plate from falling off, reducing installation risks, and preventing noise from the cover plate being blown off by the wind relative to the tower body (noise generated by the impact between the cover plate and the tower body) or damage to the tower body or cover plate due to mutual vibration and impact. It also prevents noise from the cover plate impacting the tower body or damage to the tower body or cover plate due to vibration generated during the operation of the fan.
[0045] The second limiting component includes a latch, and the first limiting component includes a wrench and a U-shaped fastener rotatably mounted on the wrench (the first and second limiting components are existing structures, conventional locking structures). After placing the cover plate on the tower body, the first limiting component faces the second limiting component. Then, the wrench is rotated (one side of the wrench is rotatably mounted on the cover plate), causing the U-shaped fastener to rotate and hook onto the latch. Then, the wrench is rotated in the opposite direction to make the U-shaped fastener hook onto the latch, thereby locking and limiting the cover plate onto the tower body. Alternatively, the second limiting component can be a bolt, and the first limiting component can be a limiting plate. One end of the limiting plate extends out of the cover plate and is located on the outside of the cover plate. The limiting plate on the outside of the cover plate has a hole. The bolt is passed through this hole and connected to the tower body, thereby limiting the cover plate onto the tower body. Of course, other structures are also possible, as long as they can lock and limit the cover plate onto the tower body at the top opening of the water distribution trough. The first limiting member can be fixed to the cover plate by bolts or by welding.
[0046] The bottom surface of the cover plate in the width direction rests on the top surface of the tower body on both sides in the width direction of the water distribution trough.
[0047] In this embodiment, taking the direction shown in the figure as an example, multiple fans are arranged sequentially from left to right, and two water distribution troughs are respectively set on the front and rear sides of the fans. The horizontal direction is the length direction (the X-axis direction from left to right is the length direction), and the vertical direction is the width direction (the Y-axis direction from front to back is the width direction). The bottom front and rear sides of the cover plate abut against the top surface of the tower body on the front and rear sides of the water distribution trough, so that the cover plate can cover the water distribution trough and play the role of sunshade, dust prevention and cooling.
[0048] See Figure 6 As shown, shock-absorbing seals 12 are provided on both sides of the bottom surface of the cover plate 6 in the width direction. The bottom surfaces of the shock-absorbing seals 12 on both sides abut against the top surfaces of the tower body 1 on both sides of the width direction of the water distribution trough 3. In this embodiment, two shock-absorbing seals are respectively set on the front and rear sides of the bottom of the cover plate. The two ends of the shock-absorbing seal strip are flush with the left and right sides of the cover plate. When the cover plate is placed on the water distribution trough, its bottom front and rear sides abut against the top surfaces of the tower body on the front and rear sides of the water distribution trough, respectively. That is, the bottom surface of the shock-absorbing seal abuts against the top surface of the tower body. The shock-absorbing seal can play a role in shock absorption and sealing, preventing external dust and other debris from entering the water distribution trough through the gap between the cover plate and the tower body, further improving the sealing effect. At the same time, even if the first limiting member and the second limiting member limit the cover plate on the tower body, both the cover plate and the tower body are made of metal materials, such as iron plate, stainless steel plate, aluminum plate, aluminum alloy plate, etc., the cover plate is made of iron plate, stainless steel plate, aluminum plate, aluminum alloy plate, etc. Due to its certain width, its flatness It won't be particularly good (the cover plate is relatively thin, and due to its own weight, the flatness won't be particularly good). The tower body is also made of metal, so the flatness requirement isn't particularly high. Therefore, after the front and rear bottom surfaces of the cover plate are pressed against the top surface of the tower body and locked by the first and second limiting parts, some gaps will appear at the contact points between the tower body and the cover plate. Dust and other debris can easily enter the water distribution tank through these gaps and contaminate the internal water. At the same time, due to the external environment, such as when the wind blows, the cover plate will sway relative to the tower body, resulting in the impact between the cover plate and the tower body, generating noise and mutual wear. When the fan is running, the tower body will also vibrate, and these vibrations will also be transmitted to the cover plate, causing the cover plate and the tower body to impact, resulting in noise or mutual wear and other problems. Therefore, in this embodiment, a shock-absorbing sealing strip is provided. This strip also serves to absorb vibrations and seal the gap between the cover plate and the top surface of the tower, preventing noise from impacts between the tower and the cover plate, as well as preventing wear from impacts between the cover plate and the tower. It also prevents external dust and other debris from entering the water distribution trough from the contact point between the tower and the cover plate. Preferably, the shock-absorbing sealing strip can be made of rubber, which has good shock absorption and sealing effects.
[0049] See Figure 5 , 6As shown, the cover plate 6 has downwardly extending extension plates 13 on both sides (left and right sides) along its length. The extension plates 13 are inserted into the water distribution trough 3. Since the cover plate has a large width and length, it may not be flat. Therefore, extension plates are also provided and inserted into the water distribution trough. This prevents the left and right sides of the cover plate from warping (causing large gaps at the point of contact between adjacent cover plates, or large gaps between the cover plate and the left or right side of the water distribution trough), thus preventing dust and other debris from entering the water distribution trough from the left and right sides of the cover plate.
[0050] The front and rear ends of the extension plate are respectively located close to the inner walls of both sides of the water distribution trough in the width direction, or both ends of the extension plate are in contact with the inner walls of both sides of the water distribution trough in the width direction; preferably, the front and rear ends of the extension plate are close to or in contact with the front and rear inner walls of the water distribution trough. This can minimize the gaps on the side of the cover plate and prevent dust and other debris from entering the water distribution trough.
[0051] The outer wall of the extension plate is disposed close to the outer wall of the extension plate on the side adjacent to the cover plate; preferably, the outer wall of the extension plate contacts the outer wall of the extension plate on the side adjacent to the cover plate. For example, the left wall of the left extension plate on the right side of the right cover plate contacts the right wall of the right extension plate on the adjacent left cover plate, thereby preventing gaps between adjacent cover plates, or gaps that are too large, from easily allowing dust and other debris to enter the water distribution trough.
[0052] In this embodiment, the outer wall of the extension plate of the outermost cover plate of the cover plate assembly contacts the inner wall of one side of the water distribution trough along its length. In this embodiment, two fans are provided, and six cover plates are provided above each water distribution trough. The right side wall of the extension plate of the rightmost cover plate contacts the inner wall of the right side of the water distribution trough, and the left side wall of the extension plate of the leftmost cover plate contacts the inner wall of the left side of the water distribution trough. This reduces gaps or eliminates gaps, thereby reducing the entry of dust and other debris into the water distribution trough.
[0053] Furthermore, to reduce gaps between adjacent cover plates and minimize the entry of dust and other debris into the water distribution trough, a flexible sealing element (not shown in the figure) is provided on the outer wall of the extension plate. The flexible sealing element can be made of rubber, sponge, cloth, etc., so that the flexible sealing elements on the side walls of the extension plates of adjacent cover plates come into contact, thereby sealing the gaps between adjacent cover plates and between the extension plate and the water distribution trough, ensuring effective protection against dust and other debris. Simultaneously, due to the use of a flexible sealing element, the cover plate can be compressed during installation, ensuring proper installation of the cover plate and proper insertion of the extension plate into the water distribution trough.
[0054] To facilitate the disassembly and relocation of the cover plate, at least one handle 14 is provided on the top of the cover plate 6. Preferably, two handles are provided, spaced apart on the top surface of the cover plate. When the operator cleans or repairs the water distribution tank, after separating the first and second limiting members, the operator can grasp the handles to remove the cover plate from the water distribution tank. During subsequent installation, the handles are also used to place the cover plate on the tower body above the water distribution tank, facilitating the installation and disassembly of the cover plate.
[0055] See Figure 1 , 2 As shown in Figure 4, the cooling water pipe 7 is arranged vertically, and at least one side of the cover plate 6 at the cooling water pipe 7 is provided with a notch 15 in the length direction, and the middle part of the cooling water pipe 7 is accommodated in the notch 15.
[0056] In this embodiment, preferably, the notch is a semi-circular notch, the size of which is adapted to the outer surface of the cooling water pipe. The cooling water pipe is arranged between adjacent cover plates, and the two notches of two adjacent cover plates form a circle that matches the cooling water pipe. The notch provides space for the cooling water pipe, thus not affecting the installation of the cover plate. In this structure, the cooling water pipe is arranged vertically from top to bottom, with the bottom of the cooling water pipe serving as the outlet, which is inserted into the water distribution trough. A main pipe 16 is also provided, with the tops of multiple cooling water pipes connected to the main pipe. The main pipe is used to connect to the heat exchanger, and the water from the heat exchanger is pumped into the main pipe and then into the water distribution trough through the multiple cooling water pipes. In this embodiment, three cooling water pipes are provided, and six notches are provided, each notch being located on the side wall of a cover plate, either on the left or right side wall. In this design, the extension plate at the notch bends inward to make way for the cooling water pipe. This bend also allows the extension plate to contact or be close to the cooling water pipe, reducing the gap between the notch and the pipe and minimizing the entry of dust and other debris into the water distribution trough. Alternatively, the extension plate can be omitted at the notch to reduce manufacturing difficulty (in the illustration of this embodiment, the notch is not equipped with an extension plate).
[0057] Of course, the cooling water pipes can also be arranged longitudinally or laterally. The ends of the cooling water pipes are inserted into the water distribution trough from the side wall of the tower body. In this way, the cooling water pipes will not be inserted from the top of the water distribution trough. The cooling water pipes do not affect the placement of the cover plate, so no notch needs to be set on the cover plate.
[0058] In this embodiment, there are at least two fans, and multiple fans are arranged sequentially along the length of the tower body, with the fans positioned between the water distribution troughs on both sides. The number of fans, the length of the tower body, the length of the packing material, and the length of the water distribution troughs are adjusted according to the space required to be covered by the central air conditioning system. The larger the workpiece to be covered, the longer the tower body, packing material, and water distribution troughs, and the more fans are required.
[0059] In the above embodiments, the cover plate is detachably installed on the tower body. As another embodiment, the connection between the cover plate and the tower body is in another way: one side of the cover plate is rotatably connected to the tower body on one side of the water distribution trough, and the other side of the cover plate abuts against the top surface of the tower body on the other side of the water distribution trough.
[0060] One side of the cover plate is rotatably connected to the tower body via a connector, which can be a hinge. The other side of the cover plate is locked to the tower body via a limiting member. The hinge is located near the fan side, and the limiting member is located near the outer wall of the tower body, facilitating the flipping of the cover plate. The user flips the cover plate from the side of the tower body. In this structure, shock-absorbing seals are provided on the front and rear sides of the bottom of the cover plate, respectively, and contact the tower body. Extension plates are also provided on its left and right sides. Of course, with this rotating structure, the cooling water pipes are not suitable for a vertical arrangement; a horizontal or longitudinal arrangement is more suitable. The outlet of the cooling water pipes passes through the side wall of the tower body into the water distribution groove, thus not affecting the rotation of the cover plate. The limiting member can be a snap-on structure or a limiting plate and bolt structure. For example, one side of the limiting plate is installed on the top of the cover plate, and the other end is on the outer side of the cover plate. The bolt passes through the limiting plate and is screwed to the tower body, thereby limiting the position of the cover plate.
[0061] In the description of this utility model, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. In the description of the invention, "a plurality of" means two or more, unless otherwise explicitly specified.
[0062] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," 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. For instance, the two components can be mechanically connected by contact or abutting; they can also be directly hooked or connected by an intermediate medium; or they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.
Claims
1. A central air conditioning cooling tower, comprising a tower body, wherein at least one fan is mounted on the tower body, and an upward-opening water distribution trough is provided on each of the two top sides of the tower body in the width direction, wherein packing material is provided below each water distribution trough, and the water distribution troughs and packing material are respectively disposed on both sides of the fan, characterized in that: A cover plate assembly is installed on the water distribution trough, the cover plate assembly including at least one cover plate extending along the length direction of the water distribution trough, the cover plate being used to open or close the top of the water distribution trough.
2. The central air conditioning cooling tower according to claim 1, characterized in that: The cover plate is detachably connected to the tower body.
3. The central air conditioning cooling tower according to claim 2, characterized in that: At least one first limiting member is provided on each of the top two sides of the cover plate in the width direction, and a second limiting member is provided on the top of the tower body on both sides of the water distribution trough in the width direction, which cooperates with the first limiting member. The first limiting member and the second limiting member lock the cover plate onto the tower body at the water distribution trough.
4. The central air conditioning cooling tower according to claim 2, characterized in that: The bottom surface of the cover plate in the width direction abuts against the top surface of the tower body on both sides in the width direction of the water distribution trough.
5. The central air conditioning cooling tower according to claim 4, characterized in that: Shock-absorbing seals are provided on both sides of the bottom surface of the cover plate in the width direction, and the bottom surfaces of the shock-absorbing seals on both sides abut against the top surface of the tower body on both sides in the width direction of the water distribution trough.
6. The central air conditioning cooling tower according to claim 4, characterized in that: The cover plate has downwardly extending extension plates on both sides along its length, and the extension plates are inserted into the water distribution trough. And / or, the two ends of the extension plate are respectively disposed close to the two side walls in the width direction of the water distribution trough, or the two ends of the extension plate are respectively in contact with the two side walls in the width direction of the water distribution trough. And / or, the outer side wall of the extension plate is disposed close to the outer side wall of the extension plate on the side adjacent to the cover plate; And / or, the outer wall of the outermost extension plate of the cover plate assembly contacts the inner wall of one side of the water distribution trough along its length. And / or, the outer wall of the extension plate is provided with a flexible seal.
7. The central air conditioning cooling tower according to claim 1, characterized in that: The top of the cover plate is provided with at least one handle.
8. The central air conditioning cooling tower according to claim 1, characterized in that: One side of the cover plate is rotatably connected to the tower body on one side of the water distribution trough, and the other side of the cover plate abuts against the top surface of the tower body on the other side of the water distribution trough. And / or, one side of the cover plate is rotatably connected to the tower body via a connector, and the other side of the cover plate is locked to the tower body via a limiting member.
9. The central air conditioning cooling tower according to claim 1, characterized in that: At least one cooling water pipe is arranged at each of the water distribution tanks, and the outlet of the cooling water pipe is inserted into the corresponding water distribution tank. And / or, the cooling water pipe is arranged vertically, and at least one side of the cover plate at the cooling water pipe is provided with a notch in the length direction, and the middle part of the cooling water pipe is accommodated in the notch.
10. The central air conditioning cooling tower according to claim 1, characterized in that: A water receiving tray is provided below the packing material; several water drop holes are provided at the bottom of the water distribution trough, facing the packing material. And / or, there are at least two fans, and multiple fans are arranged sequentially along the length of the tower body, with the fans positioned between the water distribution troughs on both sides.