Backflow structure for eliminating vortex of water tank of cooling tower

Abstract

The utility model relates to a backflow structure for eliminating vortex of a water tank of a cooling tower, which comprises the cooling tower, air draft shutters arranged on two sides of the cooling tower, water inlet pipes arranged on two sides of the top wall of the cooling tower, water leakage holes arranged on the bottom wall of the cooling tower, a water tank arranged on the bottom wall of the cooling tower, a water outlet arranged on the bottom wall of the water tank and a backflow water pipe connected with the bottom wall of the water tank. The bottom wall of the water tank is fixedly connected with a base plate, a water outlet hole is formed in the middle of the base plate, the top wall of the base plate is fixedly connected with a plurality of S-shaped separation pieces, the outer end edges of the S-shaped separation pieces are connected with the edge of the base plate, the inner end edges of the S-shaped separation pieces are connected with the edge of the water outlet hole, and the S-shaped separation pieces are evenly distributed in the circumferential direction. The middle parts of the plurality of S-shaped separation sheets protrude towards the same direction, and every two adjacent S-shaped separation sheets form a sub-runner. Vortex can be prevented from being formed at the water outlet of the bottom wall of the water tank.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning cooling tower technology, specifically to a backflow structure for eliminating vortices in cooling tower water tanks. Background Technology

[0002] After the circulating cooling water in the air conditioning system completes the indoor heat exchange, it is heated. This heated cooling water is then sprayed onto the packing material inside the cooling tower through the inlet pipe. An exhaust fan is installed at the top of the cooling tower. Outside air is drawn into the cooling tower through the exhaust louvers and flows through the packing material. This air exchanges heat with the liquid on the surface of the packing material, causing the liquid to evaporate and cool down. The air then flows into the water tank and then into the return water pipe, thus achieving circulation.

[0003] In the prior art, when liquid flows out of the water tank, since the liquid is not constrained and the flow rate is relatively fast, the liquid will form a vortex at the outlet on the bottom wall of the water tank. The vortex will create a large negative pressure, which will also draw air from the tank into the outlet. As a result, the liquid entering the return water pipe (to realize the cooling water circulation) will be mixed with air, thus affecting the normal operation of the cooling water circulation. Utility Model Content

[0004] The purpose of this invention is to provide a backflow structure that eliminates vortices in cooling tower water tanks, which can prevent the formation of vortices at the water outlet on the bottom wall of the water tank.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A backflow structure for eliminating vortexes in a cooling tower water tank includes a cooling tower with exhaust louvers on both sides, water inlet pipes on both sides of the top wall, drainage holes on the bottom wall, a water tank on the bottom wall, a water outlet on the bottom wall of the water tank, a backflow pipe connected to the bottom wall of the water tank, a water pump connected to the backflow pipe, a base plate fixed to the bottom wall of the water tank, a water outlet in the center of the base plate, and multiple S-shaped partitions fixed to the top wall of the base plate. The outer edges of the S-shaped partitions are connected to the edge of the base plate, and the inner edges of the S-shaped partitions are connected to the edge of the water outlet. The multiple S-shaped partitions are evenly distributed circumferentially. Multiple S-shaped separators have their central protrusions facing the same direction. Two adjacent S-shaped separators form a flow channel. Each flow channel is equipped with a liquid distribution block. The horizontal cross-sectional profile of the liquid distribution block is consistent with the profile of the flow channel. There is a liquid flow gap between the two sides of the liquid distribution block and the S-shaped separator. The liquid distribution block has multiple liquid flow channels along the longitudinal direction, the transverse direction, and the vertical direction. The inner end of the top edge of each S-shaped separator is fixedly connected to a connecting plate. The top wall of the connecting plate is fixedly connected to a screw. The top side of each flow channel is covered with a top plate. The top plate has a positioning hole in the middle. The positioning hole can cooperate with the connecting plate. The screw is threadedly connected to a clamping nut.

[0007] Specifically, the bottom wall of the top plate is provided with several S-shaped mating grooves, and the distribution of the several S-shaped mating grooves is consistent with the distribution of multiple S-shaped partitions. The S-shaped mating grooves can mate with the top edge of the corresponding S-shaped partition.

[0008] Specifically, the bottom wall of the top plate is provided with several pairs of positioning pins, each liquid distribution block is matched with a pair of positioning pins, the two positioning pins belonging to the same pair are arranged radially, and the two positioning pins belonging to the same pair can cooperate with the two liquid flow channels provided on the top wall of the liquid distribution block.

[0009] Specifically, the liquid distribution block has multiple liquid flow channels that intersect each other along the longitudinal, transverse, and vertical directions.

[0010] Specifically, the diameter of the fluid flow channel is 7mm-9mm.

[0011] Specifically, the distance between two adjacent liquid flow channels is 15mm-25mm.

[0012] Specifically, there are eight S-shaped separators.

[0013] Specifically, the chassis, S-shaped divider, liquid distribution block, top plate, and clamping nut are all made of plastic.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] The liquid in the tank must pass through the liquid flow channels provided by the liquid distribution block or through the liquid flow gaps in order to flow from the outside to the inside of the distribution channel and then enter the outlet. Therefore, the water flow is dispersed into multiple streams, which flow through multiple liquid flow channels respectively. Each stream can only flow along the liquid flow channel and cannot move around the outlet in a circumferential direction, so it cannot form a vortex, thus avoiding the formation of a vortex at the outlet.

[0016] The multiple vertical, longitudinal, and transverse liquid flow channels of the liquid distribution block intersect each other, allowing the liquid to flow through the distribution channels at a relatively fast flow rate to ensure water circulation efficiency. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 An exterior view of the cooling tower;

[0019] Figure 2 This is an internal view of the water tank.

[0020] Figure 3 This is an exploded view of the chassis and roof.

[0021] Figure 4 This is another exploded view of the chassis and roof;

[0022] Figure 5 This is a view of the separatory block.

[0023] In the picture:

[0024] 1. Cooling tower; 11. Exhaust louvers; 12. Water inlet pipe;

[0025] 2. Water tank; 21. Return water pipe;

[0026] 31. Chassis; 32. S-shaped partition; 33. Water outlet; 34. Diversion channel; 35. Liquid flow gap; 36. Connecting plate; 361. Screw;

[0027] 4. Liquid distribution block; 41. Liquid flow channel;

[0028] 5. Top plate; 51. Positioning hole; 52. S-shaped mating groove; 53. Positioning pin;

[0029] 6. Tighten the nut. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0031] See Figures 1 to 5 A backflow structure for eliminating vortex in a cooling tower water tank includes a cooling tower 1, with exhaust louvers 11 on both sides. Water inlet pipes 12 are provided on both sides of the top wall of the cooling tower 1, and drainage holes (not shown) are provided on the bottom wall of the cooling tower 1. A water tank 2 is located on the bottom wall of the cooling tower 1, with a water outlet on the bottom wall of the water tank 2. A backflow pipe 21 is connected to the bottom wall of the water tank 2, and a water pump is connected to the backflow pipe 21.

[0032] A base plate 31 is fixedly connected to the bottom wall of water tank 2, and a water outlet 33 is provided in the middle of the base plate 31. Multiple S-shaped partition plates 32 are fixedly connected to the top wall of the base plate 31. The outer edge of the S-shaped partition plates 32 is connected to the edge of the base plate 31, and the inner edge of the S-shaped partition plates 32 is connected to the edge of the water outlet 33. The multiple S-shaped partition plates 32 are evenly distributed circumferentially, and the central protrusions of the multiple S-shaped partition plates 32 all face the same direction. Two adjacent S-shaped partition plates 32 form a diversion channel 34. Each diversion channel 34 is provided with a liquid distribution block 4, and the horizontal cross-sectional profile of the liquid distribution block 4 is consistent with the profile of the diversion channel 34. Liquid flow gaps 35 are left between the two sides of the liquid distribution block 4 and the S-shaped partition plates 32. The liquid distribution block 4 has multiple liquid flow channels 41 along the longitudinal, transverse, and vertical directions. A connecting plate 36 is fixedly connected to the inner end of the top edge of each S-shaped partition plate 32, and a screw 361 is fixedly connected to the top wall of the connecting plate 36. Each branch channel 34 is covered by a top plate 5, and the top plate 5 has a positioning hole 51 in the middle, which can mate with the connecting plate 36. The screw 361 is threadedly connected to a clamping nut 6.

[0033] Specifically, the bottom wall of the top plate 5 is provided with several S-shaped mating grooves 52. The distribution of the several S-shaped mating grooves 52 is consistent with the distribution of multiple S-shaped partition plates 32. The S-shaped mating grooves 52 can mate with the top edge of the corresponding S-shaped partition plate 32.

[0034] Specifically, the bottom wall of the top plate 5 is provided with several pairs of positioning pins 53, and each liquid distribution block 4 is matched with a pair of positioning pins 53. The two positioning pins 53 belonging to the same pair are arranged radially, and the two positioning pins 53 belonging to the same pair can cooperate with the two liquid flow channels 41 provided on the top wall of the liquid distribution block 4.

[0035] Specifically, the multiple liquid flow channels 41 provided in the liquid distribution block 4 along the longitudinal direction, the transverse direction, and the vertical direction intersect each other.

[0036] Specifically, the diameter of the fluid flow channel 41 is 7mm-9mm.

[0037] Specifically, the distance between two adjacent liquid flow channels 41 is 15mm-25mm.

[0038] Specifically, there are eight S-shaped separators 32.

[0039] Specifically, the chassis 31, S-shaped separator 32, liquid distribution block 4, top plate 5, and clamping nut 6 are all made of plastic.

[0040] The working principle of this utility model is as follows:

[0041] The base 31 is fixed to the bottom wall of the water tank 2, and the water outlet 33 is aligned with the water outlet of the water tank 2 (not shown in the figure). After placing each liquid distribution block 4 into the corresponding distribution channel 34, the top plate 5 is covered, so that each S-shaped mating groove 52 of the top plate 5 mates with the top edge of the corresponding S-shaped separator 32, and each pair of positioning pins 53 is inserted into the two liquid flow channels 41 on the top wall of the corresponding liquid distribution block 4. Then, the clamping nut 6 is screwed into the screw 361, thus completing the positioning and installation of each liquid distribution block 4.

[0042] After the circulating cooling water of the air conditioning system participates in indoor heat exchange, it is heated. The heated cooling water is then sprayed into the packing material (not shown in the figure) inside the cooling tower 1 through the inlet pipe 12. An exhaust fan is installed at the top of the cooling tower 1. Outside air is drawn into the cooling tower 1 through the exhaust louvers 11 and flows through the packing material. The air exchanges heat with the liquid on the surface of the packing material, causing the liquid to partially evaporate and cool down. The cooled liquid flows into the water tank 2 and then into the return water pipe 21, thus realizing the circulation of the cooling water in the air conditioning system.

[0043] The liquid in the water tank 2 must pass through the liquid flow channels 41 provided in the liquid distribution block 4 or through the liquid flow gap 35 before it can flow from the outside to the inside through the distribution channel 34 and then enter the water outlet 33. Therefore, the water flow is dispersed into multiple streams, which flow through multiple liquid flow channels 41 respectively. Each stream of water can only flow along the liquid flow channel 41 and cannot move around the water outlet 33 in a circumferential direction, so it cannot form a vortex, thereby avoiding the formation of a vortex at the water outlet 33.

[0044] The multiple vertical, longitudinal, and transverse liquid flow channels 41 provided in the liquid distribution block 4 intersect each other, allowing the liquid to flow through the distribution channel 34 at a relatively fast flow rate, thereby ensuring water circulation efficiency.

[0045] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A backflow structure for eliminating vortices in a cooling tower water tank, characterized in that: The system includes a cooling tower with exhaust louvers on both sides, water inlet pipes on both sides of the top wall, drainage holes on the bottom wall, a water tank on the bottom wall, a water outlet on the bottom wall of the water tank, a return water pipe connected to the bottom wall of the water tank, a water pump connected to the return water pipe, a base plate fixed to the bottom wall of the water tank, a water outlet in the center of the base plate, and multiple S-shaped partitions fixed to the top wall of the base plate. The outer edges of the S-shaped partitions are connected to the edge of the base plate, and the inner edges of the S-shaped partitions are connected to the edge of the water outlet. The multiple S-shaped partitions are evenly distributed circumferentially. The protruding parts are aligned in the same direction. Two adjacent S-shaped partitions form a flow channel. Each flow channel is equipped with a liquid distribution block. The horizontal cross-sectional profile of the liquid distribution block is consistent with the profile of the flow channel. There is a liquid flow gap between the two sides of the liquid distribution block and the S-shaped partition. The liquid distribution block has multiple liquid flow channels along the longitudinal direction, the transverse direction, and the vertical direction. The inner end of the top edge of each S-shaped partition is fixedly connected to a connecting plate. The top wall of the connecting plate is fixedly connected to a screw. The top side of each flow channel is covered with a top plate. The top plate has a positioning hole in the middle. The positioning hole can cooperate with the connecting plate. The screw is threadedly connected to a clamping nut.

2. The backflow structure for eliminating vortices in a cooling tower water tank according to claim 1, characterized in that: The bottom wall of the top plate is provided with several S-shaped mating grooves. The distribution of these S-shaped mating grooves is consistent with the distribution of multiple S-shaped partitions. The S-shaped mating grooves can mate with the top edge of the corresponding S-shaped partition.

3. The backflow structure for eliminating vortices in a cooling tower water tank according to claim 2, characterized in that: The bottom wall of the top plate is provided with several pairs of positioning pins. Each liquid distribution block is matched with a pair of positioning pins. The two positioning pins belonging to the same pair are arranged radially. The two positioning pins belonging to the same pair can cooperate with the two liquid flow channels provided on the top wall of the liquid distribution block.

4. The backflow structure for eliminating vortices in a cooling tower water tank according to claim 1, characterized in that: The liquid distribution block has multiple liquid flow channels that intersect each other along the longitudinal, transverse, and vertical directions.

5. The backflow structure for eliminating vortices in a cooling tower water tank according to claim 1, characterized in that: The diameter of the fluid flow channel is 7mm-9mm.

6. The backflow structure for eliminating vortices in a cooling tower water tank according to claim 1, characterized in that: The distance between two adjacent fluid flow channels is 15mm-25mm.

7. The backflow structure for eliminating vortices in a cooling tower water tank according to claim 1, characterized in that: The number of S-shaped separators is eight.

8. The backflow structure for eliminating vortices in a cooling tower water tank according to claim 1, characterized in that: The chassis, S-shaped separator, liquid distribution block, top plate, and clamping nut are all made of plastic.

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