A multi-stage treatment system for circulating water of a closed cooling tower

Abstract

The application discloses a closed cooling tower circulating water multistage treatment system, and relates to the technical field of closed cooling towers. The closed cooling tower circulating water multistage treatment system comprises a shell, a cooling box arranged on the lower surface of the shell, a servo fan arranged on the upper surface of the shell, a ventilation groove arranged on one side of the cooling box, an air inlet box connected to the surface of the ventilation groove, an air inlet grid plate rotatably connected to the inner wall of the air inlet box, a connecting plate fixedly connected to the surface of one side of the air inlet grid plate, a connecting strip rotatably connected to one end of the connecting plate, and a transmission assembly arranged on the connecting strip. The cooling box is internally connected with a horizontal strip, the horizontal strip is provided with a water collecting assembly, and a spacing assembly is arranged between the water collecting assembly and the transmission assembly. The closed cooling tower circulating water multistage treatment system provided by the application adjusts the spacing in the water collecting assembly through the spacing assembly, and simultaneously drives the water collecting assembly to rotate and adjust the angle, so that the servo fan runs at different speeds when the temperatures of the process fluids that need to be cooled are different, and the water collecting assembly can keep the best water collecting efficiency at all times.

Description

Technical Field

[0001] This invention relates to the field of closed-loop cooling tower technology, and more specifically to a multi-stage treatment system for circulating water in a closed-loop cooling tower. Background Technology

[0002] A closed-circuit cooling tower is a highly efficient heat dissipation device that integrates air cooling and water cooling into a closed system. Its core feature is that the process fluid being cooled (water, oil, alcohol, etc.) always flows in a closed coil and does not come into direct contact with the outside air or spray water, so the medium will not be contaminated, evaporated, or concentrated.

[0003] Closed-loop cooling tower systems consist of two independent circulation loops: an internal circulation system and an external circulation system. The internal circulation system, also known as the spray system, involves the process fluid flowing within sealed coils, avoiding direct contact with air. This results in high water purity and low scaling risk, eliminating the need for additional water treatment. The external circulation system, or spray system, typically requires water treatment. Spray water is applied to the outer surface of the coils via a distributor, cooling the internal circulation medium through evaporation. This external circulation system is exposed to air and is susceptible to suspended solids, microorganisms, and evaporation concentration, making it a key area for water treatment.

[0004] The temperature of the process fluid that a cooling tower needs to cool is not always the same; sometimes it is low, and sometimes it is high. Therefore, in order to save energy, the fans inside the tower need to operate at different speeds depending on the fluid temperature. However, different fan operating speeds inevitably lead to changes in the airflow and air velocity. If the water collector inside the tower remains constant, its water collection efficiency cannot be guaranteed, resulting in either a higher drift loss rate or a reduced cooling effect. Therefore, how to reasonably ensure that the water collector maintains its water collection efficiency despite changes in fan operating speed is an urgent problem to be solved. Summary of the Invention

[0005] The purpose of this invention is to provide a closed-loop cooling tower circulating water multi-stage treatment system to overcome the above-mentioned shortcomings in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A closed-loop cooling tower circulating water multi-stage treatment system includes an outer shell and a cooling box disposed on the lower surface of the outer shell. A servo fan is provided on the upper surface of the outer shell. A ventilation slot is provided on one side of the cooling box. An air inlet box is connected to the surface of the ventilation slot. An air inlet grid is rotatably connected to the inner wall of the air inlet box. A connecting plate is fixedly connected to one side surface of the air inlet grid. A connecting strip is rotatably connected to one end of the connecting plate. A transmission component is provided on the connecting strip. The cooling box is internally connected to a horizontal bar, and a water collection component is provided on the horizontal bar. A spacing component is provided between the water collection component and the transmission component. When the cooling box is cooling, the servo fan drives the airflow through the air inlet grille into the cooling box, and drives the air inlet grille to rotate, thereby driving the transmission component to move, which in turn drives the spacing component to adjust the spacing within the water collection component, and simultaneously drives the water collection component to rotate and adjust the angle.

[0007] As a further preferred embodiment of the present invention, the transmission assembly includes a first connecting rod rotatably connected to one side of the connecting bar, and a rotating arm rotatably connected to one end of the first connecting rod, and a second connecting rod rotatably connected to the end of the rotating arm away from the first connecting rod, and a connecting seat rotatably connected to one end of the second connecting rod.

[0008] As a further preferred embodiment of the present invention, a mounting frame is fixedly installed inside the cooling box, and a cooling coil is provided inside the mounting frame. One end of the cooling coil passes through the side wall of the cooling box and is connected to a hot flow inlet pipe, while the other end of the cooling coil is connected to the same side wall of the cooling box and is connected to a cold flow outlet pipe.

[0009] As a further preferred embodiment of the present invention, the spacing component includes a spacing plate slidably connected to the upper surface of the mounting bracket, and the spacing plate is provided with a spacing groove, and a spacing rod is slidably connected in the spacing groove, and a spacing strip is fixedly connected to the upper end of the spacing rod, and a sliding hole is provided on the spacing strip, and a matching rod is fixedly provided inside the cooling box, and the sliding hole is slidably engaged with the matching rod, and one side surface of the spacing plate is fixedly connected to one end of the connecting seat.

[0010] As a further preferred embodiment of the present invention, the transmission assembly further includes a first transmission rod connected to the middle of the rotating arm, one end of the first transmission rod being rotatably connected to the side wall of the ventilation slot, a first helical gear being connected to the surface of the first transmission rod, the first helical gear meshing with a second helical gear, a second transmission rod being connected to one end of the second helical gear, a first pulley being connected to one end of the second transmission rod, a first transmission belt being rotatably connected to the surface of the first pulley, a transmission seat being provided on the surface of the second transmission rod, and one end of the transmission seat being fixedly connected to the inner wall of the cooling box.

[0011] As a further preferred embodiment of the present invention, the water collection component includes a water collection groove disposed on one side surface of the horizontal bar, and a water collection wheel is slidably disposed in the water collection groove. One end of the water collection wheel is connected to a water collection rod, and a water collection baffle is connected to the surface of the water collection rod. One end of the water collection baffle is rotatably connected to one end of the spacing strip.

[0012] As a further preferred embodiment of the present invention, the water collection assembly further includes a second pulley rotatably connected to one end of the first transmission belt, and a second belt is rotatably connected to the side surface of the second pulley, and a third pulley is rotatably connected to one end of the second belt, and both the second pulley and the third pulley are rotatably mounted on the crossbar.

[0013] As a further preferred embodiment of the present invention, a water collection tank is connected to the lower surface of the cooling tank, a liquid pump is provided on the side wall of the water collection tank, and a water filling valve and a water outlet valve are also connected to the same side wall of the water collection tank.

[0014] As a further preferred embodiment of the present invention, a spray pump is provided on the other side surface of the water collection tank. One end of the spray pump is connected to a water pumping pipe, one end of the water pumping pipe is connected to the side wall of the water collection tank, and the other end of the spray pump is connected to a water supply pipe.

[0015] As a further preferred embodiment of the present invention, the upper surface of the outer shell is provided with a spray groove, the upper surface of the spray groove is connected to a spray box, a water pipe is provided inside the spray box, one end of the water supply pipe passes through the side wall of the spray box and communicates with the water pipe, a fixing plate is fixedly installed inside the spray box, a fixing ring is connected to the lower surface of the fixing plate, a spray pipe is installed inside the fixing ring, one end of the spray pipe communicates with the side wall of the water pipe, and a spray head is provided on the side wall of the spray pipe.

[0016] In the above technical solution, the closed-loop cooling tower circulating water multi-stage treatment system provided by the present invention has the following beneficial effects: This invention uses a servo fan to drive airflow through an air inlet grille into the cooling box. As the airflow enters, it drives the air inlet grille to rotate, which in turn drives the transmission component to move. This, in turn, drives the spacing component to adjust the spacing within the water collection component, and simultaneously drives the water collection component to rotate and adjust its angle. This allows the servo fan to operate at different speeds when the temperature of the process fluid to be cooled is different, thus ensuring that the water collection component always maintains optimal water collection efficiency.

[0017] It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative only, and are not intended to limit this disclosure.

[0018] This application provides an overview of various implementations or examples of the technology described in this disclosure, and is not a full disclosure of the entire scope or all features of the disclosed technology. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0020] Figure 1 This is a schematic diagram of the overall structure provided in an embodiment of the present invention; Figure 2 This is a schematic diagram of the overall structure from another perspective, provided for an embodiment of the present invention. Figure 3 This is a schematic diagram of the internal structure provided in an embodiment of the present invention; Figure 4 Provided for embodiments of the present invention Figure 3 Enlarged structural diagram at point A in the middle; Figure 5 Provided for embodiments of the present invention Figure 3 Enlarged structural diagram at point B; Figure 6 Provided for embodiments of the present invention Figure 3 Enlarged structural diagram at point C; Figure 7 Provided for embodiments of the present invention Figure 3 Enlarged structural diagram at point D; Figure 8 This is a partial structural diagram provided for an embodiment of the present invention; Figure 9 This is a schematic diagram of the structure of the spray box provided in an embodiment of the present invention.

[0021] Explanation of reference numerals in the attached figures: 1. Outer shell; 101. Cooling box; 102. Air inlet box; 103. Water collection box; 104. Servo fan; 105. Liquid pump; 106. Water inlet valve; 107. Water outlet valve; 2. Spray pump; 201. Water suction pipe; 202. Water supply pipe; 203. Spray box; 204. Fixing plate; 205. Fixing ring; 206. Water pipe; 207. Spray pipe; 208. Spray head; 3. Mounting bracket; 301. Cooling coil; 302. Hot air inlet pipe; 303. Cold air outlet pipe; 4. Air inlet grille; 401. Connecting plate; 402. Connecting strip; 5. First connecting rod 501. Rotating arm; 502. Second connecting rod; 503. Connecting seat; 6. First transmission rod; 601. First helical gear; 602. Second helical gear; 603. Second transmission rod; 604. First pulley; 605. First transmission belt; 606. Transmission seat; 7. Spacing plate; 701. Spacing groove; 702. Spacing rod; 703. Spacing strip; 704. Sliding hole; 705. Matching rod; 8. Water collecting baffle; 801. Water collecting rod; 802. Water collecting wheel; 803. Second belt; 804. Second pulley; 805. Third pulley; 806. Crossbar. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the described embodiments of this disclosure without creative effort are within the scope of protection of this disclosure.

[0023] Please see Figure 1 - Figure 9 A closed-loop cooling tower circulating water multi-stage treatment system includes an outer shell 1 and a cooling box 101 disposed on the lower surface of the outer shell 1. A servo fan 104 is disposed on the upper surface of the outer shell 1. A ventilation slot is disposed on one side of the cooling box 101. An air inlet box 102 is connected to the surface of the ventilation slot. An air inlet grid 4 is rotatably connected to the inner wall of the air inlet box 102. A connecting plate 401 is fixedly connected to one side surface of the air inlet grid 4. A connecting strip 402 is rotatably connected to one end of the connecting plate 401. A transmission component is disposed on the connecting strip 402. The cooling box 101 is internally connected to a horizontal bar 806, and a water collection component is provided on the horizontal bar 806. A spacing component is provided between the water collection component and the transmission component. When the cooling box 101 is cooling, the servo fan 104 drives the airflow through the air inlet grille 4 into the cooling box 101, and drives the air inlet grille 4 to rotate when it enters, so as to drive the transmission component to move, thereby driving the spacing component to adjust the spacing in the water collection component, and simultaneously driving the water collection component to rotate and adjust the angle.

[0024] This invention uses a servo fan 104 to drive airflow through the air inlet grille 4 into the cooling box 101. When the airflow enters, it drives the air inlet grille 4 to rotate, thereby driving the transmission component to move. This, in turn, drives the spacing component to adjust the spacing within the water collection component, and simultaneously drives the water collection component to rotate and adjust its angle. This allows the servo fan 104 to operate at different speeds when the temperature of the process fluid to be cooled is different, thus ensuring that the water collection component always maintains the best water collection efficiency.

[0025] Furthermore, during air intake, the air intake grille 4 rotates, thereby driving the connecting plate 401 to move, which in turn drives the connecting strip 402 to move in a sliding posture.

[0026] Specifically, the servo fan 104 operates at different speeds, resulting in different air intake volumes, which in turn cause the air intake grille 4 to rotate at different angles. The larger the air intake volume, the greater the rotation amplitude of the air intake grille 4.

[0027] In a further embodiment of the present invention, the transmission assembly includes a first connecting rod 5 rotatably connected to one side of the connecting bar 402, and a rotating arm 501 rotatably connected to one end of the first connecting rod 5, and a second connecting rod 502 rotatably connected to the end of the rotating arm 501 away from the first connecting rod 5, and a connecting seat 503 rotatably connected to one end of the second connecting rod 502.

[0028] Furthermore, when the connecting bar 402 moves, it drives the first connecting rod 5 to move, thereby driving the rotating arm 501 to rotate, which in turn pulls the second connecting rod 502 to move.

[0029] In a further embodiment of the present invention, a mounting bracket 3 is fixedly installed inside the cooling box 101, and a cooling coil 301 is provided inside the mounting bracket 3. One end of the cooling coil 301 passes through the side wall of the cooling box 101 and is connected to a hot flow inlet pipe 302, and the other end of the cooling coil 301 is connected to the same side wall of the cooling box 101 and a cold flow outlet pipe 303.

[0030] Furthermore, a prior art temperature sensor is installed inside the hot flow inlet pipe 302 to monitor the temperature of the incoming process fluid and is electrically connected to the servo fan 104 to control the operating speed of the servo fan 104.

[0031] Specifically, the hot inlet pipe 302 introduces the process fluid from the outside, and after entering the cooling coil 301, the process fluid is cooled. The cooled process fluid flows out from the cold outlet pipe 303.

[0032] In a further embodiment of the present invention, the spacing component includes a spacing plate 7 slidably connected to the upper surface of the mounting bracket 3, and the spacing plate 7 is provided with a spacing groove 701, and a spacing rod 702 is slidably connected in the spacing groove 701, and a spacing strip 703 is fixedly connected to the upper end of the spacing rod 702, and a sliding hole 704 is provided on the spacing strip 703, and a mating rod 705 is fixedly provided inside the cooling box 101, and the sliding hole 704 and the mating rod 705 are slidably engaged, and one side surface of the spacing plate 7 is fixedly connected to one end of the connecting seat 503.

[0033] Furthermore, the spacing grooves 701 are provided in several quantities according to actual needs, and the spacing grooves 701 are divided into two groups, which are mirror-symmetrical about the vertical line of the spacing plate 7. The angles of the spacing grooves 701 in each group are different. The angles of the spacing grooves 701 that are close to the vertical line of the spacing plate 7 are close to vertical but not perpendicular and have a certain angle. The angles of the other spacing grooves 701 increase as they go outwards. Figure 8 As shown, the spacing grooves 701 on the spacing plate 7 radiate outwards from the inside.

[0034] Specifically, when the second link 502 moves, it pulls the spacing plate 7 to slide outward on the mounting bracket 3, so that the spacing rod 702 slides under the action of the spacing groove 701, thereby changing the spacing between the spacing strips 703.

[0035] In a further embodiment of the present invention, the transmission assembly further includes a first transmission rod 6 connected to the middle of the rotating arm 501, one end of the first transmission rod 6 being rotatably connected to the side wall of the ventilation slot, a first helical gear 601 being connected to the surface of the first transmission rod 6, the first helical gear 601 meshing with a second helical gear 602, one end of the second helical gear 602 being connected to a second transmission rod 603, one end of the second transmission rod 603 being connected to a first pulley 604, a first transmission belt 605 being rotatably connected to the surface of the first pulley 604, and a transmission seat 606 being provided on the surface of the second transmission rod 603, one end of the transmission seat 606 being fixedly connected to the inner wall of the cooling box 101.

[0036] Furthermore, when the rotating arm 501 rotates, it drives the first helical gear 601 to rotate, which in turn drives the second helical gear 602 to rotate, thereby driving the first transmission belt 605 to move.

[0037] In a further embodiment of the present invention, the water collection component includes a water collection trough disposed on one side surface of the horizontal bar 806, and a water collection wheel 802 is slidably disposed in the water collection trough. One end of the water collection wheel 802 is connected to a water collection rod 801, and a water collection baffle 8 is connected to the surface of the water collection rod 801. One end of the water collection baffle 8 is rotatably connected to one end of the spacing bar 703.

[0038] Furthermore, the water-collecting baffle 8 traps large water droplets carried out by the airflow, avoiding "white fog" and water consumption, thereby reducing water vapor discharge. This is equivalent to keeping the latent heat of vaporization inside the tower, indirectly improving cooling efficiency.

[0039] Furthermore, the cross-section of the water-collecting baffle plate 8 is a zigzag structure, which intercepts water droplets through secondary collisions, thereby enhancing the water-collecting effect.

[0040] In a further embodiment of the present invention, the water collection assembly further includes a second pulley 804 rotatably connected to one end of the first transmission belt 605, and a second belt 803 is rotatably connected to the side surface of the second pulley 804, and a third pulley 805 is rotatably connected to one end of the second belt 803, and both the second pulley 804 and the third pulley 805 are rotatably mounted on the crossbar 806.

[0041] Furthermore, the lower surface of the crossbar 806 is provided with a transverse groove, the inner end of the second pulley 804 is located in the transverse groove, and is connected to the first transmission belt 605.

[0042] Furthermore, the first transmission belt 605 drives the second pulley 804 to rotate, thereby driving the second belt 803 to move, which in turn drives the water collection wheel 802 to rotate to adjust the angle of the water collection baffle 8.

[0043] Specifically, when the process fluid temperature is high, the servo fan 104 operates at a higher speed, resulting in a larger air intake. This causes the water collection baffles 8 to rotate at a larger angle, making them closer to parallel and reducing the distance between them. This increases the collection area of ​​the water collection baffles 8, ensuring water collection efficiency. Simultaneously, the reduced distance, due to the narrowing effect, increases the airflow velocity, preventing excessive airflow from lingering inside the tower and reducing the safety hazards caused by sudden pressure increases. When the process fluid temperature is low, the servo fan 104 operates at a lower speed, resulting in a smaller air intake. This causes the water collection baffles 8 to rotate at a smaller angle, becoming closer to vertical. The increased distance between the water collection baffles 8 slows down the airflow discharge rate, increasing the water collection time of the baffles 8 to capture airflow for a longer period, ensuring water collection efficiency.

[0044] In a further embodiment of the present invention, a water collection tank 103 is connected to the lower surface of the cooling tank 101, a medicine pump 105 is provided on the side wall of the water collection tank 103, and a water filling valve 106 and a water outlet valve 107 are also connected to the same side wall of the water collection tank 103.

[0045] Specifically, a high-efficiency scale inhibitor and bactericide / algaecide are added through the chemical pump 105 to treat the external circulating water to ensure the water quality of the external circulation. At the same time, the water inlet valve 106 and the water outlet valve 107 drain water and replenish water in a timely manner to maintain water quality stability.

[0046] In a further embodiment of the present invention, a spray pump 2 is provided on the other side surface of the water collection tank 103. One end of the spray pump 2 is connected to a water pumping pipe 201, one end of the water pumping pipe 201 is connected to the side wall of the water collection tank 103, and the other end of the spray pump 2 is connected to a water supply pipe 202.

[0047] Specifically, the water collection tank 103 stores external circulating water, and the spray pump 2 delivers the external circulating water to the top of the tower through the water supply pipe 202.

[0048] In a further embodiment of the present invention, a spray trough is provided on the upper surface of the outer shell 1, and a spray box 203 is connected to the upper surface of the spray trough. A water pipe 206 is provided inside the spray box 203. One end of a water supply pipe 202 passes through the side wall of the spray box 203 and communicates with the water pipe 206. A fixing plate 204 is fixedly installed inside the spray box 203. A fixing ring 205 is connected to the lower surface of the fixing plate 204. A spray pipe 207 is provided inside the fixing ring 205. One end of the spray pipe 207 communicates with the side wall of the water pipe 206. A spray head 208 is provided on the side wall of the spray pipe 207.

[0049] Specifically, the spray head 208 evenly sprays external circulating water onto the outer surface of the cooling coil 301. The servo fan 104 drives ambient air to enter through the air inlet grille 4 and flows horizontally across the surface of the cooling coil 301. The hot process fluid inside the cooling coil 301 conducts heat to the tube wall. The spray water forms a water film on the outer surface of the cooling coil 301, absorbing the heat of the hot process fluid. The airflow comes into direct contact with the water film and water droplets on the outer surface of the cooling coil 301. Through sensible heat exchange, the air heats up and the latent heat exchange, and the spray water evaporates, absorbing heat and removing heat. The evaporated water vapor is carried by the hot and humid air by the servo fan 104 and discharged outside the tower after being collected by the water collection baffle 8. The unevaporated spray water falls into the bottom water collection tank 103 and is sent back to the top for spraying by the spray pump 2.

[0050] In this invention, process fluid is first introduced from the outside through the hot flow inlet pipe 302. The spray pump 2 is started to transport external circulating water to the top of the tower through the water supply pipe 202. The spray head 208 sprays the external circulating water evenly on the outer surface of the cooling coil 301. The servo fan 104 drives ambient air to enter through the air inlet grille 4 and flow horizontally across the surface of the cooling coil 301. When the air enters, it drives the air inlet grille 4 to rotate, thereby driving the connecting plate 401 to move, which in turn drives the connecting bar 402 to move in a sliding posture. When the connecting bar 402 moves, it drives the first connecting rod 5 to move, thereby driving the rotating arm 501 to rotate, which in turn pulls the second connecting rod 502 to move. When the second connecting rod 502 moves, it pulls the spacing plate 7 to slide outward on the mounting bracket 3, so that the spacing rod 702 slides under the action of the spacing groove 701, thereby causing the spacing bar 703 to slide on the mating rod 705, thereby changing the spacing bar 703. The spacing between the three water collection plates 8 and 3 causes the water collection wheel 802 to slide in the water collection trough to change the spacing between the water collection plates 8. Simultaneously, when the rotating arm 501 rotates, it drives the first helical gear 601 to rotate, which in turn drives the second helical gear 602 to rotate, which in turn drives the first transmission belt 605 to move. The first transmission belt 605 drives the second pulley 804 to rotate, which in turn drives the second belt 803 to move, which in turn drives the water collection wheel 802 to rotate to adjust the angle of the water collection plates 8. After the water collection plates 8 passively adjust their angle and spacing according to the change in air volume, they will intercept the large water droplets carried out by the airflow to maintain a high water collection efficiency. The evaporated water vapor is carried by the servo fan 104 through the water collection plates 8 and discharged outside the tower. The unevaporated spray water falls into the bottom water collection tank 103 and is sent to the top spray by the spray pump 2 to continuously cool the process fluid.

[0051] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A closed-loop cooling tower circulating water multi-stage treatment system, comprising an outer shell (1) and a cooling tank (101) disposed on the lower surface of the outer shell (1), characterized in that: The upper surface of the outer shell (1) is provided with a servo fan (104), the cooling box (101) is provided with a ventilation slot on one side, the surface of the ventilation slot is connected to an air inlet box (102), an air inlet grille (4) is rotatably connected to the inner wall of the air inlet box (102), a connecting plate (401) is fixedly connected to one side surface of the air inlet grille (4), a connecting strip (402) is rotatably connected to one end of the connecting plate (401), and a transmission component is provided on the connecting strip (402); The cooling box (101) is connected to a horizontal bar (806) inside. A water collection component is provided on the horizontal bar (806), and a spacing component is provided between the water collection component and the transmission component. When the cooling box (101) is being cooled, the servo fan (104) drives the airflow through the air inlet grille (4) into the cooling box (101), and drives the air inlet grille (4) to rotate when it enters, so as to drive the transmission component to move, thereby driving the spacing component to adjust the spacing in the water collection component, and simultaneously driving the water collection component to rotate and adjust the angle.

2. The closed-loop cooling tower circulating water multi-stage treatment system according to claim 1, characterized in that, The transmission assembly includes a first connecting rod (5) rotatably connected to one side of the connecting bar (402), and a rotating arm (501) rotatably connected to one end of the first connecting rod (5), and a second connecting rod (502) rotatably connected to one end of the rotating arm (501) away from the first connecting rod (5), and a connecting seat (503) rotatably connected to one end of the second connecting rod (502).

3. The closed-loop cooling tower circulating water multi-stage treatment system according to claim 1, characterized in that, The cooling box (101) is fixedly provided with a mounting bracket (3), and a cooling coil (301) is provided inside the mounting bracket (3). One end of the cooling coil (301) passes through the side wall of the cooling box (101) and is connected to a hot flow inlet pipe (302). The other end of the cooling coil (301) is connected to the same side wall of the cooling box (101) and is connected to a cold flow outlet pipe (303).

4. A closed-loop cooling tower circulating water multi-stage treatment system according to claim 2 or 3, characterized in that, The spacing assembly includes a spacing plate (7) slidably connected to the upper surface of the mounting bracket (3), and the spacing plate (7) is provided with a spacing groove (701), and a spacing rod (702) is slidably connected in the spacing groove (701), and a spacing strip (703) is fixedly connected to the upper end of the spacing rod (702), and a sliding hole (704) is provided on the spacing strip (703). A matching rod (705) is fixedly provided inside the cooling box (101), and the sliding hole (704) and the matching rod (705) are slidably matched. One side surface of the spacing plate (7) is fixedly connected to one end of the connecting seat (503).

5. A closed-loop cooling tower circulating water multi-stage treatment system according to claim 2, characterized in that, The transmission assembly further includes a first transmission rod (6) connected to the middle of the rotating arm (501), and one end of the first transmission rod (6) is rotatably connected to the side wall of the ventilation slot. A first helical gear (601) is connected to the surface of the first transmission rod (6), and the first helical gear (601) meshes with a second helical gear (602). One end of the second helical gear (602) is connected to a second transmission rod (603), and one end of the second transmission rod (603) is connected to a first pulley (604). A first transmission belt (605) is rotatably connected to the surface of the first pulley (604). A transmission seat (606) is provided on the surface of the second transmission rod (603), and one end of the transmission seat (606) is fixedly connected to the inner wall of the cooling box (101).

6. A closed-loop cooling tower circulating water multi-stage treatment system according to claim 4, characterized in that, The water collection assembly includes a water collection groove disposed on one side surface of the horizontal bar (806), and a water collection wheel (802) is slidably disposed in the water collection groove. One end of the water collection wheel (802) is connected to a water collection rod (801), and a water collection baffle (8) is connected to the surface of the water collection rod (801). One end of the water collection baffle (8) is rotatably connected to one end of the spacing bar (703).

7. A closed-loop cooling tower circulating water multi-stage treatment system according to claim 5 or 6, characterized in that, The water collection assembly further includes a second pulley (804) rotatably connected to one end of the first transmission belt (605), and a second belt (803) is rotatably connected to the side surface of the second pulley (804), and a third pulley (805) is rotatably connected to one end of the second belt (803), and both the second pulley (804) and the third pulley (805) are rotatably mounted on the crossbar (806).

8. A closed-loop cooling tower circulating water multi-stage treatment system according to claim 1, characterized in that, The lower surface of the cooling tank (101) is connected to a water collection tank (103), and a liquid pump (105) is provided on the side wall of the water collection tank (103). The same side wall of the water collection tank (103) is also connected to a water filling valve (106) and a water outlet valve (107).

9. A closed-loop cooling tower circulating water multi-stage treatment system according to claim 8, characterized in that, A spray pump (2) is provided on the other side surface of the water collection tank (103). One end of the spray pump (2) is connected to a water pumping pipe (201). One end of the water pumping pipe (201) is connected to the side wall of the water collection tank (103). The other end of the spray pump (2) is connected to a water supply pipe (202).

10. A closed-loop cooling tower circulating water multi-stage treatment system according to claim 9, characterized in that, The upper surface of the outer shell (1) is provided with a spray groove, and a spray box (203) is connected to the upper surface of the spray groove. A water pipe (206) is provided inside the spray box (203). One end of the water supply pipe (202) passes through the side wall of the spray box (203) and is connected to the water pipe (206). A fixing plate (204) is fixedly installed inside the spray box (203). A fixing ring (205) is connected to the lower surface of the fixing plate (204). A spray pipe (207) is provided inside the fixing ring (205). One end of the spray pipe (207) is connected to the side wall of the water pipe (206). A spray head (208) is provided on the side wall of the spray pipe (207).

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