Energy-saving and water-saving cooling tower

Abstract

The present invention relates to the technical field of cooling towers, specifically an energy-saving and water-saving cooling tower. An axial flow fan, a water eliminator, a filtering part, a spraying part and a heat exchange part are arranged inside the cooling tower main body. The upper part of the spraying part passes through the filtering part and is fixedly arranged coaxially with the axial flow fan; the filtering part is used for filtering the spraying water. The spraying part includes a connecting pipe and a spraying pipe. The spraying pipe is located below the filtering part. The connecting pipe is fixedly connected with the axial flow fan. The lower part of the connecting pipe communicates with the inside of the filtering part. The spraying pipe includes a separating pipe and a water distribution pipe which are integrally formed. The water distribution pipe is provided with a movable fine filtering component. The separating pipe is located on one side of the axis of the spraying part. A plurality of spray heads are arranged on the lower side of the end of the water distribution pipe far away from the separating pipe. A sewage discharge component is arranged on the outer side of the separating pipe. The spraying water flows to the water distribution pipe through the separating pipe, and the sediment flows to the separating pipe under the action of centrifugal force, and the sediment in the separating pipe is cleaned by the sewage discharge component.

Description

Technical Field

[0001] The present invention relates to the technical field of cooling towers, specifically an energy-saving and water-saving cooling tower. Background Art

[0002] During the operation of traditional cooling towers, impurities such as sediment in the spray water are likely to block the spray system, affecting the cooling efficiency. Moreover, after the spray system is blocked, the spray water distribution becomes uneven, reducing the heat exchange efficiency. At the same time, it is difficult to effectively remove the sediment deposited inside the spray system, affecting the service life of the equipment. These problems are particularly prominent when industrial cooling towers are used in areas with poor water quality.

[0003] Although some filtering devices are provided at the water inlet pipe of the cooling tower in the prior art, most of the filtering devices have complex structures, are difficult to maintain, and cannot achieve convenient sewage discharge and cleaning functions, resulting in unsatisfactory energy-saving and water-saving effects of the cooling tower. Therefore, the present application provides an energy-saving and water-saving cooling tower. Summary of the Invention

[0004] To solve the above problems, the present invention provides an energy-saving and water-saving cooling tower.

[0005] The technical solution adopted by the present invention to solve its technical problems is: an energy-saving and water-saving cooling tower, including a cooling tower main body. Inside the cooling tower main body, an axial flow fan, a water eliminator, a spray part, and a heat exchange part are sequentially arranged from top to bottom. A filtering part is arranged between the spray part and the water eliminator. The upper part of the spray part passes through the filtering part and is fixedly arranged coaxially with the axial flow fan.

[0006] The filtering part is used to filter the spray water. The spray part includes a connecting pipe and a spray pipe. The spray pipe is located below the filtering part. The connecting pipe is fixedly connected to the axial flow fan. The lower part of the connecting pipe communicates with the inside of the filtering part. The spray pipe includes a separation pipe and a water distribution pipe integrally formed. A movable fine filtering component is arranged inside the water distribution pipe. The separation pipe is located on one side of the axis of the spray part. Several spray heads are arranged on the lower side of the end of the water distribution pipe away from the separation pipe. A sewage discharge component is arranged outside the separation pipe. The spray water flows from the separation pipe to the water distribution pipe, and the sediment flows to the separation pipe under the action of centrifugal force, and the sediment in the separation pipe is cleaned through the sewage discharge component.

[0007] As an optimization, the filtering part includes a flat filtering box, which is horizontally distributed below the water eliminator. One side of the filtering box is connected with a water inlet pipe. Inside the filtering box, a flat filter screen with a hollow interior is arranged. The inner side of the filter screen is the drainage side.

[0008] A filter head is arranged at the lower part of the connecting pipe, and the spray water enters the inside of the connecting pipe through the filter head. The connecting pipe is rotationally and sealingly connected to the filter box.

[0009] As an optimization, the spray pipe is horizontally arranged. One end of the separation pipe is connected to the connecting pipe, and the other end of the separation pipe is bent to form a separation section perpendicular to the water distribution pipe. The separation section communicates with the water distribution pipe, and the sewage discharge assembly is connected to the separation section.

[0010] As an optimization, a separation opening is arranged on one side of the separation pipe away from the axis of the spray part;

[0011] The sewage discharge assembly includes a fixed sleeve. The fixed sleeve is provided with a first connection hole and a second connection hole. A connection channel is arranged between the first connection hole and the second connection hole. The first connection hole is used to accommodate the separation pipe, and the separation opening faces the connection channel. A separation box is detachably connected inside the second connection hole. The separation box is provided with a sewage discharge port. When the sewage discharge port communicates with the connection channel, the sediment inside the separation pipe enters the inside of the separation box through the separation opening and the connection channel.

[0012] As an optimization, the first connection hole is sealingly connected to the separation pipe, the second connection hole is sealingly connected to the separation box, both ends of the connection channel are in a closed state, a separation motor is arranged outside the fixed sleeve, and the output shaft of the separation motor is connected to the separation box.

[0013] As an optimization, an adjustment motor is arranged at one end of the water distribution pipe away from the separation pipe. The output shaft of the adjustment motor is connected with a guiding lead screw. The guiding lead screw is distributed along the axis of the water distribution pipe. The length of the guiding lead screw is greater than half of the length of the water distribution pipe. The fine filtration assembly is cooperatively connected with the guiding lead screw. When the fine filtration assembly moves along the water distribution pipe, it can clean the sediment at the bottom of the water distribution pipe and push the sediment towards the direction of the separation pipe.

[0014] As an optimization, the fine filtration assembly includes a connection sleeve and a plurality of cleaning filter meshes. The connection sleeve is threadedly connected to the guiding lead screw, and the plurality of cleaning filter meshes are evenly distributed along the axial direction of the connection sleeve. The outer side of the cleaning filter mesh is attached to the inner wall of the water distribution pipe.

[0015] As an optimization, the plurality of spray heads are evenly distributed along the length direction of the water distribution pipe, and the installation position of the spray heads does not exceed the axis of the spray part.

[0016] The beneficial effects of this solution are as follows:

[0017] The spray water is purified in multiple stages through a filter screen and a filter head, effectively removing sediment in the water. The axial flow fan drives the spray part to rotate, promoting the efficient distribution of the spray water. At the same time, it can perform centrifugal separation on the sediment in the spray part, effectively removing the sediment and avoiding blockage of the spray system, ensuring the efficient operation of the cooling tower.

[0018] The modular design makes each component easy to disassemble and maintain. A detachable separation box is set to facilitate the efficient cleaning of the sediment in the separation pipe by Fang Baini, with convenient operation, especially suitable for use in areas with poor water quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 Isometric schematic diagram of the present invention.

[0020] Figure 2 Front view schematic diagram of the present invention.

[0021] Figure 3 For the present invention Figure 2 Schematic cross-sectional structure diagram taken along A-A of the present invention.

[0022] Figure 4 Isometric schematic diagram of the spray pipe of the present invention.

[0023] Figure 5 Bottom isometric schematic diagram of the spray pipe of the present invention.

[0024] Figure 6 Left view schematic diagram of the spray pipe of the present invention.

[0025] Figure 7 For the present invention Figure 6 Schematic cross-sectional structure diagram taken along A-A of the present invention.

[0026] Figure 8 Front view schematic diagram of the spray pipe of the present invention.

[0027] Figure 9 For the present invention Figure 8 Schematic cross-sectional structure diagram taken along B-B of the present invention.

[0028] Figure 10 For the present invention Figure 9 Schematic cross-sectional structure diagram taken along B-B of the present invention.

[0029] Figure 11 For the present invention Figure 7 Enlarged schematic diagram of part A of the present invention.

[0030] Among them, 1. Cooling tower main body, 2. Axial flow fan, 3. Water eliminator, 4. Spraying part, 5. Heat exchange part, 6. Connecting pipe, 7. Spraying pipe, 8. Separation pipe, 9. Water distribution pipe, 10. Spraying head, 11. Filter box, 12. Water inlet pipe, 13. Filter screen, 14. Filter head, 15. Separation section, 16. Separation opening, 17. Fixed sleeve, 18. Connecting channel, 19. Separation box, 20. Drain port, 21. Separation motor, 22. Adjustment motor, 23. Guide screw rod, 24. Connecting sleeve, 25. Cleaning filter screen. Specific embodiments

[0031] As Figures 1 - 11 shown, the energy-saving and water-saving cooling tower includes a cooling tower main body 1. Inside the cooling tower main body 1, an axial flow fan 2, a water eliminator 3, a spraying part 4, and a heat exchange part 5 are arranged in sequence from top to bottom. A filtering part is arranged between the spraying part 4 and the water eliminator 3. The upper part of the spraying part 4 passes through the filtering part and is fixedly arranged coaxially with the axial flow fan 2.

[0032] The filtering part is used to filter the spraying water. The spraying part 4 includes a connecting pipe 6 and a spraying pipe 7. The spraying pipe 7 is located below the filtering part. The connecting pipe 6 is fixedly connected with the axial flow fan 2. The lower part of the connecting pipe 6 communicates with the inside of the filtering part. The spraying pipe 7 includes a separation pipe 8 and a water distribution pipe 9 which are integrally formed. A movable fine filtering component is arranged inside the water distribution pipe 9. The separation pipe 8 is located on one side of the axis of the spraying part 4. A plurality of spraying heads 10 are arranged on the lower side of the end of the water distribution pipe 9 away from the separation pipe 8. A sewage discharge component is arranged outside the separation pipe 8. The spraying water flows from the separation pipe 8 to the water distribution pipe 9, and the sediment flows to the separation pipe 8 under the action of centrifugal force. The sediment in the separation pipe 8 is cleaned by the sewage discharge component.

[0033] The cooling tower main body 1 is made of fiberglass or galvanized steel plate, and has the characteristics of corrosion resistance and high temperature resistance. The axial flow fan 2 is located inside the upper end opening of the cooling tower main body 1. The axial flow fan 2 is driven by a high-efficiency energy-saving motor and has adjustable speed, and is used for forced ventilation to enhance the cooling effect. When discharging sewage through the sewage discharge component, the axial flow fan 2 is accelerated to rotate to promote the rapid centrifugation of the sediment and prevent the sediment inside the sewage discharge component from flowing back outwards.

[0034] The heat exchange part 5 can adopt a tubular heat exchanger, a corrugated plate heat exchanger or a packing type heat exchange structure to enhance the heat exchange efficiency between water and air. Correspondingly, an air intake structure, a recycled water structure, etc. should also be arranged at the lower part of the cooling tower main body 1.

[0035] As Figure 3As shown, the filtering part includes a flat filtering box 11, which is horizontally distributed below the water separator 3. One side of the filtering box 11 is connected with a water inlet pipe 12. Inside the filtering box 11, there is a flat filter net 13 with a hollow interior. The inner side of the filter net 13 is the drainage side;

[0036] A filter head 14 is arranged at the lower part of the connecting pipe 6. The sprayed water enters the inside of the connecting pipe 6 through the filter head 14, and the connecting pipe 6 is rotationally and sealingly connected with the filtering box 11.

[0037] The filter head 14 communicates with the inside of the connecting pipe 6. The upper end of the connecting pipe 6 is a closed end, and the sprayed water flows into the spray pipe 7 through the connecting pipe 6.

[0038] As Figure 3 and Figure 4 shown, the spray pipe 7 is horizontally arranged. One end of the separation pipe 8 is connected with the connecting pipe 6. The other end of the separation pipe 8 is bent to form a separation section 15 perpendicular to the water distribution pipe 9. The separation section 15 communicates with the water distribution pipe 9, and the sewage discharge assembly is connected to the separation section 15.

[0039] The separation section 15 is located on the outermost side of the entire spraying part 4, where the centrifugal force has the strongest effect, enabling the sediment in the sprayed water to gather towards the separation section 15. The spray pipe 7 can be made of stainless steel or engineering plastics, which is corrosion-resistant and has high strength.

[0040] As Figure 3 、 Figure 4 and Figure 10 shown, a separation opening 16 is arranged on the side of the separation pipe 8 away from the axis of the spraying part 4;

[0041] The sewage discharge assembly includes a fixed sleeve 17. The fixed sleeve 17 is provided with a first connection hole and a second connection hole. A connection channel 18 is arranged between the first connection hole and the second connection hole. The first connection hole is used to accommodate the separation pipe 8. The separation opening 16 faces the connection channel 18. A separation box 19 is detachably connected inside the second connection hole. The separation box 19 is provided with a sewage discharge port 20. When the sewage discharge port 20 communicates with the connection channel 18, the sediment inside the separation pipe 8 enters the inside of the separation box 19 through the separation opening 16 and the connection channel 18.

[0042] The length of the separation opening 16 and the length of the sewage discharge port 20 are both smaller than the length of the fixed sleeve 17, and the width of the separation opening 16 is not greater than the opening width of the connection channel 18.

[0043] As Figure 8 、 Figure 9 and Figure 10As described above, the first connection hole is sealingly connected to the separation pipe 8, the second connection hole is sealingly connected to the separation box 19, both ends of the connection channel 18 are in a closed state, a separation motor 21 is provided outside the fixed sleeve 17, and the output shaft of the separation motor 21 is connected to the separation box 19.

[0044] The output shaft of the separation motor 21 is provided with a plug hole, and the end of the separation box 19 is provided with a plug block, and the plug block is connected to the plug hole in a matching manner. To enable the separation box 19 to rotate with the separation motor 21, the plug hole and the plug block can be a hexagonal hole and a hexagonal prism.

[0045] As Figure 8 and Figure 11 shown, one end of the water distribution pipe 9 away from the separation pipe 8 is provided with an adjustment motor 22, the output shaft of the adjustment motor 22 is connected to a guiding lead screw 23, the guiding lead screw 23 is distributed along the axis of the water distribution pipe 9, the length of the guiding lead screw 23 is greater than half of the length of the water distribution pipe 9, the fine filtration assembly is connected to the guiding lead screw 23 in a matching manner, and when the fine filtration assembly moves along the water distribution pipe 9, it can clean the sediment at the bottom of the water distribution pipe 9 and push the sediment in the direction of the separation pipe 8.

[0046] The filter holes of the fine filtration assembly should be smaller than the filter holes of the filter net 13 and the filter head 14. By the movement of the fine filtration assembly, it can push the fine sand to move and enable the spray water to flow smoothly from the separation pipe 8 in the direction of the spray head 10.

[0047] As Figure 11 shown, the fine filtration assembly includes a connection sleeve 24 and a plurality of cleaning filter nets 25, the connection sleeve 24 is threadedly connected to the guiding lead screw 23, and the plurality of cleaning filter nets 25 are evenly distributed along the axis direction of the connection sleeve 24, and the outer side of the cleaning filter net 25 is attached to the inner wall of the water distribution pipe 9.

[0048] A latex ring can be arranged on the outer circumference of the cleaning filter net 25 to make the cleaning filter net 25 fit and seal with the inner wall of the water distribution pipe 9. When the cleaning filter net 25 moves from the spray head 10 in the direction of the separation pipe 8, it can push the sediment to move from one side of the axis of the spray part 4 to the other side of the axis of the spray part 4, so that the sediment moves from the cleaning filter net 25 in the direction of the separation pipe 8 under the action of centrifugal force. When the cleaning filter net 25 moves in the direction of the spray head 10, it can pressurize the water in the water distribution pipe 9, accelerate the drainage of the spray head 10, and discharge a part of the fine sand outward, playing a role in flushing the spray head 10.

[0049] The plurality of spray heads 10 are evenly distributed along the length direction of the water distribution pipe 9, and the installation position of the spray heads 10 does not exceed the axis of the spray part 4.

[0050] In the above device, a PLC control system should also be included to automatically adjust the operating frequencies of the separation motor 21 and the adjustment motor 22 according to information such as water quality and sediment content; correspondingly, sensors or photographing modules for detection can also be set up to detect the sediment content inside the separation pipe 8 and the water distribution pipe 9.

[0051] During low-load operation, the rotational speed of the axial flow fan 2 can be reduced to reduce energy consumption.

[0052] Usage method:

[0053] When the device is in specific use, spray water is sent to the cooling tower main body 1 through the water inlet pipe 12;

[0054] After the spray water is filtered by the filter screen 13, it enters the connecting pipe 6 through the filter head 14. The spray water flows downward through the connecting pipe 6 and successively passes through the separation pipe 8 and the water distribution pipe 9, and is sprayed downward through the spray heads 10 at the bottom of the water distribution pipe 9;

[0055] The axial flow fan 2 drives the spray part 4 to rotate. When the spray part 4 rotates, it can spray the spray water, and the spraying effect is uniform, which can effectively improve the heat exchange efficiency and reduce the waste of water resources.

[0056] When the spray part 4 rotates, under the action of centrifugal force, the sediment in the spray water moves in a direction away from the axis of the spray part 4. When the spray water passes through the separation section 15, the sediment is thrown into the separation opening 16;

[0057] The sediment gathers at the separation opening 16 and the connecting channel 18. The axial flow fan 2 accelerates its operation, and then the separation motor 21 operates. The separation motor 21 drives the separation box 19 to rotate, making the sewage outlet 20 opposite to the separation opening 16, so that the sediment in the connecting channel 18 is quickly thrown into the separation box 19. The separation motor 21 continues to operate, making the separation box 19 rotate until the sewage outlet 20 closes. According to the sediment content of the spray water, the sewage discharge assembly repeats the above process periodically. The specific operating frequency can be set according to the specific situation.

[0058] Some fine sediment that fails to enter the sewage discharge assembly will follow the spray water to reach the inside of the water distribution pipe 9. According to the sediment content of the spray water, the fine filtration assembly operates periodically. The specific operation process is as follows:

[0059] The adjustment motor 22 drives the guide screw rod 23 to rotate, making the fine filtration assembly move along the water distribution pipe 9. The fine filtration assembly can further filter the fine sand inside the water distribution pipe 9, and the fine filtration assembly pushes the fine sand to move to the other side of the axis of the spray part 4, so that the fine sand can be thrown into the separation pipe 8 and collected through the sewage discharge assembly.

[0060] After using for a period of time, it is necessary to clean the separation box 19. After the equipment stops running, remove the separation box 19 from the inside of the second connection hole and then clean the separation box 19;

[0061] When the separation box 19 is removed, the separation pipe 8 is in an open state. At this time, flush water into the spraying part 4 to wash the spraying part 4.

[0062] The above specific implementation manners are only specific cases of the present invention. The patent protection scope of the present invention includes but is not limited to the product forms and styles of the above specific implementation manners. Any energy-saving and water-saving cooling tower that conforms to the claims of the present invention and any appropriate changes or modifications made by those of ordinary skill in the corresponding technical field shall fall within the patent protection scope of the present invention.

Claims

1. Energy-saving and water-saving cooling tower, comprising a cooling tower main body (1), wherein an axial flow fan (2), a water eliminator (3), a spraying part (4) and a heat exchange part (5) are sequentially arranged in the cooling tower main body (1) from top to bottom, and it is characterized in that: A filtering part is arranged between the spraying part (4) and the water eliminator (3), and the upper part of the spraying part (4) passes through the filtering part and is fixedly arranged coaxially with the axial flow fan (2); The filtering part is used for filtering the spraying water. The spraying part (4) includes a connecting pipe (6) and a spraying pipe (7). The spraying pipe (7) is located on the lower side of the filtering part. The connecting pipe (6) is fixedly connected with the axial flow fan (2). The lower part of the connecting pipe (6) communicates with the inside of the filtering part. The spraying pipe (7) includes a separating pipe (8) and a water distribution pipe (9) integrally formed. A movable fine filtering component is arranged inside the water distribution pipe (9). The separating pipe (8) is located on one side of the axis of the spraying part (4). A plurality of spray heads (10) are arranged on the lower side of one end of the water distribution pipe (9) far from the separating pipe (8). A sewage discharge component is arranged outside the separating pipe (8). The spraying water flows to the water distribution pipe (9) through the separating pipe (8), and the sediment flows to the separating pipe (8) under the action of centrifugal force. The sediment in the separating pipe (8) is cleaned through the sewage discharge component; The spraying pipe (7) is horizontally arranged. One end of the separating pipe (8) is connected with the connecting pipe (6), and the other end of the separating pipe (8) is bent to form a separating section (15) perpendicular to the water distribution pipe (9). The separating section (15) communicates with the water distribution pipe (9), and the sewage discharge component is connected to the separating section (15); A separation opening (16) is arranged on one side of the separating pipe (8) far from the axis of the spraying part (4); The sewage discharge component includes a fixed sleeve (17). The fixed sleeve (17) is provided with a first connection hole and a second connection hole, and a connection channel (18) is arranged between the first connection hole and the second connection hole. The first connection hole is used for accommodating the separating pipe (8). The separation opening (16) faces the connection channel (18). A separation box (19) is detachably connected inside the second connection hole. The separation box (19) is provided with a sewage discharge port (20). When the sewage discharge port (20) communicates with the connection channel (18), the sediment inside the separating pipe (8) enters the inside of the separation box (19) through the separation opening (16) and the connection channel (18); The first connection hole is hermetically connected with the separating pipe (8), the second connection hole is hermetically connected with the separation box (19), both ends of the connection channel (18) are in a closed state, and a separation motor (21) is arranged outside the fixed sleeve (17). The output shaft of the separation motor (21) is connected with the separation box (19); The plurality of spray heads (10) are uniformly distributed along the length direction of the water distribution pipe (9), and the installation position of the spray heads (10) does not exceed the axis of the spraying part (4).

2. The energy-saving and water-saving cooling tower according to claim 1, wherein: The filtering part includes a flat filtering box (11), the filtering box (11) is horizontally distributed below the water separator (3), a water inlet pipe (12) is connected to one side of the filtering box (11), a flat filter screen (13) with a hollow interior is arranged inside the filtering box (11), and the inner side of the filter screen (13) is the drainage side; A filter head (14) is arranged at the lower part of the connecting pipe (6), the sprayed water enters the inside of the connecting pipe (6) through the filter head (14), and the connecting pipe (6) is rotationally and sealingly connected to the filtering box (11).

3. The energy-saving and water-saving cooling tower according to claim 1, wherein: An adjusting motor (22) is arranged at one end of the water distribution pipe (9) far away from the separation pipe (8), an output shaft of the adjusting motor (22) is connected with a guiding lead screw (23), the guiding lead screw (23) is distributed along the axis of the water distribution pipe (9), the length of the guiding lead screw (23) is greater than half of the length of the water distribution pipe (9), the fine filtering assembly is connected with the guiding lead screw (23) in a matching manner, and when the fine filtering assembly moves along the water distribution pipe (9), it can clean the sediment at the bottom of the water distribution pipe (9) and push the sediment towards the direction of the separation pipe (8).

4. The energy-saving and water-saving cooling tower according to claim 3, wherein: The fine filtering assembly includes a connecting sleeve (24) and a plurality of cleaning filter screens (25), the connecting sleeve (24) is in threaded connection with the guiding lead screw (23), the plurality of cleaning filter screens (25) are evenly distributed along the axial direction of the connecting sleeve (24), and the outer side of the cleaning filter screen (25) is attached to the inner wall of the water distribution pipe (9).

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