Indirect evaporation cooling tower

Abstract

The utility model discloses an indirect evaporative cooling tower, which belongs to the field of cooling towers, and comprises a shell, the whole shell is of an inverted T-shaped structure, the shell comprises a main bin and side bins on the two sides, external air inlet windows are arranged on the sides, deviating from each other, of the two side bins, and a water collecting tray is arranged on the lower portion in the shell. The water collecting tray is arranged below the main bin and the two side bins, a high-temperature water meter cooler is installed in the side bins and corresponds to an external air inlet window in position, the output end of the high-temperature water meter cooler is connected with a water return pipe, water spraying filler is arranged on the upper portion in the main bin and is higher than the high-temperature water meter cooler, and the water spraying filler is connected with the water return pipe. The unit utilizes a two-stage evaporative cooling principle of indirect evaporative cooling and direct evaporative cooling to realize further drop and jump of the cooling water temperature, and the wet bulb efficiency exceeds 100%, that is, the outlet water temperature of the cooling water can be reduced to be below the environment wet bulb temperature through composite evaporative cooling.

Description

Technical Field

[0001] The utility model relates to the field of cooling towers, and more specifically to an indirect evaporative cooling tower. Background Art

[0002] Most of the cooling towers in the current data center water cooling system solutions use traditional open cooling towers. Cooling towers are devices that use the contact between air and water (directly or indirectly) to cool water. Water is used as a circulating coolant to absorb heat from a system and discharge it into the atmosphere, thereby reducing the temperature of the cooling water. The direct evaporative cooling technology of traditional open cooling towers refers to the technology of obtaining cold water by direct contact between air and water for heat and moisture exchange, and both heat exchange and mass exchange between the output medium and the working medium. However, the cooling efficiency of traditional open cooling towers is limited. At the same time, in order to prevent foreign matter in the air from being sucked into the interior, the air inlet of the cooling tower will be equipped with corresponding filter windows at the air inlet and outlet to prevent the internal cooling water from being contaminated by the outside world. However, after a period of use, the outer surface of the filter window will accumulate a certain amount of dust or lint and other foreign matter. If it is not handled in time, it will affect the air intake efficiency and reduce the cooling effect. Utility Model Content

[0003] 1. Technical problems to be solved

[0004] In view of the problems existing in the prior art, the purpose of the utility model is to provide an indirect evaporative cooling tower, which can combine direct cooling and indirect cooling to improve the cooling effect.

[0005] 2. Technical solution

[0006] To solve the above problems, the utility model adopts the following technical solutions.

[0007] An indirect evaporative cooling tower comprises a shell, the shell being in a convex structure as a whole, the shell comprising a main bin and side bins on both sides, external air inlet windows being arranged on the sides of the two side bins which are away from each other, a water collecting pan being arranged at the lower part of the interior of the shell, the water collecting pan being arranged at the lower part of the main bin and the bins on both sides, a high-temperature water meter cooler being installed inside the side bin, the high-temperature water meter cooler being in a position corresponding to the external air inlet window, the output end of the high-temperature water meter cooler being connected to a return water pipe, a water sprinkling filler being arranged at the upper part of the interior of the main bin, the water sprinkling filler being higher than the high-temperature water meter cooler, the water sprinkling filler A main spray pipe runs through the material, the nozzle of the main spray pipe is placed above the water spraying filler, the bottom of the main spray pipe is connected to the output end of the high-temperature water meter cooler, and vertical tube indirect evaporative coolers are evenly distributed inside the side warehouse. The vertical tube indirect evaporative cooler is placed inside the high-temperature water meter cooler. An auxiliary spray pipe is arranged inside the side warehouse, and the bottom end of the auxiliary spray pipe is placed inside the water collecting tray. The nozzle above the auxiliary spray pipe is placed directly above the vertical tube indirect evaporative cooler. A filler block is arranged on the side of the side warehouse close to the main warehouse, and exhaust outlets are arranged on the top of the main warehouse and the side warehouse.

[0008] Furthermore, a water pump is provided in the auxiliary spray pipe passage, and the water pump pumps the water inside the water collecting tray upwards.

[0009] Furthermore, a water supply pipe for drainage is connected to the bottom of the water collecting tray.

[0010] Furthermore, convex plates are symmetrically arranged on the outside of the side bin, and the two convex plates are placed on both sides above the external air inlet window. A threaded rod is rotatably installed between the two convex plates, and a driving motor is fixed on the outside of one of the convex plates, and the output end of the driving motor is coaxially connected to the threaded rod.

[0011] Furthermore, a moving block is installed on the surface of the threaded rod, and the moving block is threadedly screwed with the surface of the threaded rod. Extension plates are symmetrically arranged on the outside of the moving block, and a rotating shaft is rotatably installed between the two extension plates. A moving plate is arranged at the bottom of the rotating shaft, and a brush is detachably installed on the inner side of the moving plate by bolts, and the brush is in contact with the outer surface of the external air inlet window.

[0012] Furthermore, limiting surfaces are provided on both sides of the rotating shaft surface, the limiting surfaces are placed on the inner side of the extension plate, and fixing bolts are rotatably mounted on the surface of the extension plate, and the fixing bolts correspond to the positions of the limiting surfaces.

[0013] 3. Beneficial effects

[0014] Compared with the prior art, the utility model has the following advantages: the utility model provides an indirect evaporative cooling tower, which uses the principle of indirect evaporative cooling + direct evaporative cooling two-stage evaporative cooling to achieve a further drop in cooling water temperature, with a wet-bulb efficiency exceeding 100%, that is, the cooling water outlet temperature can be reduced to below the ambient wet-bulb temperature through composite evaporative cooling. Compared with the traditional cooling tower in the data center, this cooling unit can achieve a lower degree of approach, and the cooling water temperature is further reduced. On the one hand, in the mechanical refrigeration mode, a lower cooling water temperature can be obtained, and the condensation temperature of the chiller can be reduced, thereby improving the energy efficiency of the chiller. On the other hand, by reducing the water temperature, the utilization time of the natural cold source is further extended, which greatly improves the comprehensive energy efficiency of the air conditioner and further expands the area of ​​the natural cold source.

[0015] When direct evaporative cooling is used, part of the cooling water is sprayed onto the surface of the vertical tube indirect evaporative cooler to cool the high-temperature water flowing through it, thereby realizing indirect evaporative cooling.

[0016] In addition, a movable brush is provided on the air inlet window to regularly clean the air inlet window filter to ensure the efficiency of air intake and prevent cooling from being affected by blockage by foreign matter. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the distribution structure of each component of the utility model;

[0018] Figure 2 This is a schematic diagram of the installation three-dimensional structure of the utility model;

[0019] Figure 3 For the utility model Figure 2 A schematic diagram of the enlarged structure of area A;

[0020] Figure 4 It is a schematic diagram of the three-dimensional structure of the brush installation of the utility model.

[0021] Explanation of the numbers in the figure: 1. Return pipe; 2. Water supply pipe; 3. Shell; 4. External air inlet window; 5. High-temperature water meter cooler; 6. Exhaust outlet; 7. Water spraying filler; 8. Vertical pipe indirect evaporative cooler; 9. Filling block; 10. Water collecting tray; 11. Convex plate; 12. Threaded rod; 13. Driving motor; 14. Moving block; 15. Extension plate; 16. Rotating shaft; 161. Limiting surface; 17. Fixing bolt; 18. Moving plate; 19. Brush; 20. Auxiliary spray pipe; 21. Main spray pipe. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0023] Example:

[0024] See also Figure 1 and Figure 2 As shown, an indirect evaporative cooling tower includes a shell 3, the shell 3 is a convex structure as a whole, the shell 3 includes a main bin and side bins on both sides, the two side bins are provided with external air inlet windows 4 on the sides away from each other, a water collecting pan 10 is provided at the lower part of the shell 3, the water collecting pan 10 is placed under the main bin and the bins on both sides, the water collecting pan 10 can receive water sprayed inside the side bin and the main bin, a high-temperature water meter cooler 5 is installed inside the side bin, the high-temperature water meter cooler 5 corresponds to the position of the external air inlet window 4, and the output end of the high-temperature water meter cooler 5 is connected to The return pipe 1 is used to preliminarily cool the hot water. A water sprinkling filler 7 is arranged above the inside of the main compartment. The water sprinkling filler 7 is higher than the high-temperature water meter cooler 5. A main spray pipe 21 runs through the water sprinkling filler 7. The nozzle of the main spray pipe 21 is placed above the water sprinkling filler 7. The water flow inside the main compartment is sprayed down through the nozzle above, and fully contacts with the water sprinkling filler 7, and flows downward, and contacts with the cold air flowing upward, so as to realize direct cooling. At the same time, the hot steam is discharged through the top, and the bottom of the main spray pipe 21 is connected to the output end of the high-temperature water meter cooler 5.

[0025] Among them, vertical tube indirect evaporative coolers 8 are evenly distributed inside the side warehouse. The vertical tube indirect evaporative cooler 8 is placed on the inner side of the high-temperature water meter cooler 5, so that when the external cold air is extracted, the gas passes through the external air inlet window 4, the high-temperature water meter cooler 5, and the vertical tube indirect evaporative cooler 8 in sequence, and the gas flows toward the main warehouse to indirectly cool the high-temperature liquid flowing through the vertical tube indirect evaporative cooler 8. The vertical tube indirect evaporative cooler 8 can be directly connected to hot water, so that indirect cooling and direct cooling are connected in parallel to increase the cooling speed. The vertical tube indirect evaporative cooler 8 can also be connected to the flow pipe of this unit to further cool the water flowing through the unit to obtain water with a lower temperature. For example, the vertical tube indirect evaporative cooler 8 is directly connected to the end of the high-temperature water meter cooler 5, so that the water flow is cooled by the vertical tube indirect evaporative cooler 8 when it flows into the main warehouse, and the cooled water in the main warehouse will be used as the coolant of the vertical tube indirect evaporative cooler 8 to improve the cooling efficiency while being circulated.

[0026] Please refer to Figure 1As shown, an auxiliary spray pipe 20 is provided inside the side bin, and the bottom end of the auxiliary spray pipe 20 is placed inside the water collecting tray 10, and the nozzle above the auxiliary spray pipe 20 is placed just above the vertical tube type indirect evaporative cooler 8 to extract the water inside the water collecting tray 10, and then spray it from top to bottom to cool the vertical tube type indirect evaporative cooler 8, a stuffing block 9 is provided on the side of the side bin close to the main bin, and exhaust ports 6 are provided on the tops of the main bin and the side bin to realize the flow of air inside and outside, a water pump is provided in the passage of the auxiliary spray pipe 20, and the water pump pumps the water inside the water collecting tray 10 upwards, and a water supply pipe 2 for drainage is connected to the bottom of the water collecting tray 10 to extract the cooled water.

[0027] Please refer to Figure 2-Figure 4 A convex plate 11 is symmetrically arranged on the outside of the side warehouse. The two convex plates 11 are placed on both sides above the external air inlet window 4. A threaded rod 12 is rotatably installed between the two convex plates 11. The convex plate 11 can make the threaded rod 12 in a suspended state to facilitate the movement of the moving block 14 on its surface. A driving motor 13 is fixed on the outside of one of the convex plates 11. The output end of the driving motor 13 is coaxially connected to the threaded rod 12 so as to be controlled by the driving motor 13. The driving motor 13 is a bidirectional motor. After rotating for one end time, the moving block 14 reaches the end, and the driving motor 13 can be flipped at this time.

[0028] Among them, a moving block 14 is installed on the surface of the threaded rod 12, and the moving block 14 is threadedly screwed with the surface of the threaded rod 12. The threaded rod 12 is rotated to drive the moving block 14 to move. Extension plates 15 are symmetrically arranged on the outside of the moving block 14, and a rotating shaft 16 is rotatably installed between the two extension plates 15. A moving plate 18 is arranged at the bottom of the rotating shaft 16. Under normal conditions, the moving plate 18 is vertically downward, and a brush 19 is detachably installed on the inside of the moving plate 18 by bolts. The brush 19 contacts the outer surface of the external air inlet window 4 to clean the filter on the inside of the external air inlet window 4 through lateral movement. At the same time, the moving plate 18 can rotate around the rotating shaft 16 to control it to be horizontal or vertically upward, which is convenient for the installation or disassembly of the brush 19.

[0029] Please refer to Figure 4 As shown, limiting surfaces 161 are provided on both sides of the surface of the rotating shaft 16, and the limiting surfaces 161 are placed on the inner side of the extension plate 15. A fixing bolt 17 is rotatably installed on the surface of the extension plate 15, and the position of the fixing bolt 17 corresponds to the limiting surface 161. When the movable plate 18 is vertically downward, the limiting surface 161 corresponds to the fixing bolt 17, so as to ensure the stability of the rotating shaft 16 by locking the fixing bolt 17.

[0030] Working principle: The hot water pipe flows into the high-temperature water meter cooler 5 through the return pipe 1 to achieve preliminary cooling, and then flows into the main spray pipe 21, and sprays water downward on the water spray filler 7. At the same time, the hot water is passed into the vertical tube indirect evaporative cooler 8, and the exhaust vents 6 on the top of the inner and outer bins are respectively started to exhaust the air, and the water pumps on each pipe are started. The external air enters through the external air inlet window 4, passes through the high-temperature water meter cooler 5, the vertical tube indirect evaporative cooler 8, the filler block 9, and then passes through the water spray filler 7 upward and is discharged. In this process, the water collection tray can be The water inside 10 is pumped upward and sprayed downward to cool the vertical tube indirect evaporative cooler 8, and the hot air in the side bin is pumped out through the exhaust port 6 on its top. The main bin can realize open direct cooling, and the side bin can cool the water flowing through the vertical tube indirect evaporative cooler 8 by water flow to realize indirect cooling. Both methods can improve the cooling effect. At the same time, the external driving motor 13 can drive the threaded rod 12 to rotate and then drive the moving block 14 to move, so as to clean the floating dust on the outside of the external air inlet window 4 through the moving brush 19 to ensure the smoothness of the air intake.

[0031] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. An indirect evaporative cooling tower, comprising a shell (3), wherein the shell (3) is in a convex structure as a whole, and the shell (3) comprises a main bin and side bins on both sides, characterized in that: An external air inlet window (4) is arranged on the side of the two side bins facing away from each other, a water collecting pan (10) is arranged at the lower part of the shell (3), and the water collecting pan (10) is placed below the main bin and the bins on both sides, a high-temperature water meter cooler (5) is installed inside the side bin, the high-temperature water meter cooler (5) corresponds to the position of the external air inlet window (4), the output end of the high-temperature water meter cooler (5) is connected to a return water pipe (1), a water spraying filler (7) is arranged above the main bin, the water spraying filler (7) is higher than the high-temperature water meter cooler (5), a main spraying pipe (21) runs through the water spraying filler (7), and the spray of the main spraying pipe (21) The head is placed above the water spraying filler (7), the bottom of the main spray pipe (21) is connected to the output end of the high-temperature water meter cooler (5), vertical tube indirect evaporative coolers (8) are evenly distributed inside the side bin, and the vertical tube indirect evaporative coolers (8) are placed inside the high-temperature water meter cooler (5), an auxiliary spray pipe (20) is arranged inside the side bin, the bottom end of the auxiliary spray pipe (20) is placed inside the water collecting tray (10), and the upper nozzle of the auxiliary spray pipe (20) is placed directly above the vertical tube indirect evaporative cooler (8), a filler block (9) is arranged on the side of the side bin close to the main bin, and exhaust ports (6) are arranged on the tops of the main bin and the side bin.

2. An indirect evaporative cooling tower according to claim 1, characterized in that: A water pump is provided in the passage of the auxiliary spray pipe (20), and the water pump pumps water inside the water collecting tray (10) upwards.

3. An indirect evaporative cooling tower according to claim 2, characterized in that: The bottom of the water collecting tray (10) is connected to a water supply pipe (2) for drainage.

4. An indirect evaporative cooling tower according to claim 1, characterized in that: The side bin is symmetrically provided with convex plates (11), the two convex plates (11) are placed on both sides above the external air inlet window (4), a threaded rod (12) is rotatably mounted between the two convex plates (11), a driving motor (13) is fixed on the outside of one of the convex plates (11), and the output end of the driving motor (13) is coaxially connected to the threaded rod (12).

5. An indirect evaporative cooling tower according to claim 4, characterized in that: A moving block (14) is installed on the surface of the threaded rod (12), and the moving block (14) is threadedly engaged with the surface of the threaded rod (12). Extension plates (15) are symmetrically arranged on the outside of the moving block (14), and a rotating shaft (16) is rotatably installed between the two extension plates (15). A moving plate (18) is arranged at the bottom of the rotating shaft (16). A brush (19) is detachably installed on the inside of the moving plate (18) by means of bolts, and the brush (19) contacts the outer surface of the external air inlet window (4).

6. An indirect evaporative cooling tower according to claim 5, characterized in that: Limiting surfaces (161) are arranged on both sides of the surface of the rotating shaft (16), and the limiting surfaces (161) are arranged inside the extension plate (15). A fixing bolt (17) is rotatably mounted on the surface of the extension plate (15), and the fixing bolt (17) corresponds to the position of the limiting surface (161).

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