Spraying descaling structure for cooling tower

Abstract

The utility model relates to a spraying descaling structure for a cooling tower, which belongs to the technical field of cooling towers and comprises a tower body, a heat exchange coil fixed in the tower body, a cleaning mechanism arranged in the tower body and used for cleaning the heat exchange coil and a spraying structure arranged on the tower body. A chemical adding mechanism matched with the cleaning mechanism for use is arranged on the mounting table; and the medicine adding mechanism comprises a medicine storage barrel, a stirring structure is arranged on the medicine storage barrel, a liquid conveying structure is fixed to the upper surface of the mounting table, and a linkage structure extending into the tower body is arranged below the mounting table. According to the spraying descaling structure for the cooling tower, through innovative fusion of mechanical linkage, automatic control and modular design, comprehensive optimization of efficient descaling, precise dosing, energy-saving operation and convenient maintenance is achieved. The cooling tower has the core advantages that cleaning, spraying and dosing functions are integrated into a single system, and the operation efficiency and reliability of the cooling tower are remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of cooling tower technology, specifically to a spray descaling structure for cooling towers. Background Technology

[0002] The cooling tower includes a shell, metal heat exchange coils installed inside the shell for the flow of heat medium, a spray device, a fan, and a spray water pump. The spray device sprays cooling water onto the metal heat exchange coils. After cooling, the heat medium is discharged from the closed cooling tower through the outlet of the heat exchange coils. However, during operation, scale is easily generated on the heat exchange coils. Scale refers to a layer of solid or mud-like material that gradually accumulates on the solid surface in contact with the fluid during heat exchange. The presence of scale not only reduces heat transfer efficiency and increases energy and material consumption, but may also pose safety hazards.

[0003] A search revealed that patent document CN211012557U discloses a scale prevention and descaling structure for a closed cooling tower. The structure includes a descaling device installed inside the shell for descaling the heat exchange coils. A spray device is installed at the top of the shell. An electric push rod corresponding to the position of the descaling device is fixedly connected to the outer wall of the shell. The telescopic end of the electric push rod penetrates the shell and is fixedly connected to the descaling device via a push rod. The descaling device includes mounting plates located on both sides of the heat exchange coils. The upper and lower ends of the two mounting plates are fixedly connected by U-shaped plates. Through the coordinated use of a first descaling mechanism and a second descaling mechanism arranged in an alternating manner, comprehensive descaling and cleaning of the straight and curved sections of the heat exchange coils can be achieved.

[0004] The aforementioned patent also has the following shortcomings: Since the cooling tank lacks an automatic dosing function and relies solely on existing anti-scaling methods such as electronic descaling devices, ion exchange membranes, and mechanical cleaning, the spraying system will face significant drawbacks in actual operation. For example, impurities and scale in the water will gradually accumulate, and the filter layer may not be able to completely remove them, leading to nozzle clogging and affecting spray uniformity and efficiency. Clogged nozzles will result in insufficient cooling in some areas, reducing the overall heat dissipation effect. Therefore, a spray descaling structure for cooling towers is proposed to address the aforementioned problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a spray descaling structure for cooling towers, which has advantages such as high automation and improved efficiency. It solves the problem that the lack of automatic chemical dosing in the cooling tank causes impurities and scale to gradually accumulate in the water, which may not be completely removed by the filter layer, leading to nozzle clogging.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a spray descaling structure for a cooling tower, comprising a tower body, a heat exchange coil fixed inside the tower body, a cleaning mechanism disposed inside the tower body for cleaning the heat exchange coil, and a spray structure disposed on the tower body. An installation platform is fixed on the outer wall of the tower body, and a dosing mechanism for use in conjunction with the cleaning mechanism is disposed on the installation platform.

[0007] The dosing mechanism includes a drug storage cylinder with a stirring structure on it, an infusion structure fixed on the upper surface of the mounting platform, and a linkage structure extending into the interior of the tower body below the mounting platform.

[0008] The linkage structure includes a connecting plate, a slide block is provided on the connecting plate, a roller is provided on the slide block, a first connecting rod connected to the infusion structure is provided on one side of the roller, and a second connecting rod is provided between the infusion structure and the stirring structure.

[0009] Furthermore, the cleaning mechanism includes an electric telescopic rod fixed to the outer wall of the tower body, and the output end of the electric telescopic rod extends into the interior of the tower body. A cleaning structure for cleaning the heat exchange coil is fixed on the output end of the electric telescopic rod.

[0010] Furthermore, the spray structure includes a cooling box fixed to the outer wall of the tower body, and a spray pipe is fixed to the inner top wall of the tower body.

[0011] Furthermore, the stirring structure includes a drive shaft with a bearing installed inside the medicine storage cylinder, a stirring shaft connected to the outside of the drive shaft by a spline, the bottom end of the drive shaft penetrating the interior of the mounting platform, and a gear connected to a connecting plate fixed at the bottom end of the drive shaft.

[0012] Furthermore, the connecting plate is composed of a sliding plate and a toothed plate, and the sliding plate and the toothed plate are fixedly connected. The toothed plate meshes with a gear. The end of the connecting plate away from the sliding plate extends into the interior of the tower body. A limiting groove for guiding the sliding plate is provided inside the tower body.

[0013] Furthermore, the infusion structure includes a piston cylinder fixed to the upper surface of the mounting platform, and two check valves are fixed to the outer surface of the piston cylinder. The infusion structure also includes a stopper rod disposed inside the piston cylinder. One end of the first connecting rod and the second connecting rod are both fixed to the outer surface of the top end of the stopper rod, and the other end of the second connecting rod is rotatably connected to the stirring shaft.

[0014] Furthermore, the bottom end of the stopper rod is fixed to the piston inside the piston cylinder, and the top end of the stopper rod extends to the outside of the piston cylinder. Both ends of the check valve are fixed with infusion tubes, one of which is fixedly connected to the drug storage cylinder.

[0015] Furthermore, the slide block is fixed to the top side of the slide plate, and an inclined groove is provided inside the slide block, with the roller rollingly connected to the inner wall of the inclined groove.

[0016] Compared with the prior art, this utility model provides a spray descaling structure for cooling towers, which has the following beneficial effects:

[0017] 1. This cooling tower uses a spray descaling structure. The reciprocating motion of the electric telescopic rod drives the cleaning, stirring, and spraying actions in a linked manner, reducing manual intervention and improving operating efficiency. The synchronous movement of the stirring shaft and piston cylinder ensures uniform mixing and quantitative delivery of the agent, avoiding agent waste or uneven concentration.

[0018] 2. The cooling tower uses a spray descaling structure, which is fixed to the top side of the slide plate by a sliding seat. Its internal inclined sliding groove is connected to the roller to convert the horizontal motion into vertical motion. The first connecting rod connects the stopper rod and the roller, driving the stopper rod to reciprocate. The second connecting rod connects the stopper rod and the stirring shaft to realize the synchronous action of stirring and liquid delivery. Attached Figure Description

[0019] Figure 1 This is a cross-sectional view of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the cleaning structure in this utility model;

[0021] Figure 3 This is a schematic diagram of the drug delivery mechanism in this utility model;

[0022] Figure 4 This utility model Figure 3 A magnified structural diagram of structure A is shown.

[0023] In the diagram: 1. Tower body; 2. Heat exchange coil; 3. Electric telescopic rod; 4. Cleaning structure; 5. Cooling box; 6. Spray pipe; 7. Mounting platform; 8. Dosing mechanism; 801. Drug storage cylinder; 802. Drive shaft; 803. Stirring shaft; 804. Connecting plate; 8041. Slide plate; 8042. Toothed plate; 805. Gear; 806. Piston cylinder; 807. Plug rod; 808. Check valve; 809. Infusion pipe; 810. First connecting rod; 811. Second connecting rod; 812. Slide seat; 813. Roller; 814. Inclined slide groove; 11. Limiting groove. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1 to 4 This embodiment of a cooling tower spray descaling structure includes a tower body 1, heat exchange coils 2 fixed inside the tower body 1, a cleaning mechanism inside the tower body 1 for cleaning the heat exchange coils 2, and a spray structure on the tower body 1. The cleaning mechanism includes an electric telescopic rod 3 fixed to the outer wall of the tower body 1, with its output end extending into the tower body 1. A cleaning structure 4 for cleaning the heat exchange coils 2 is fixed to the output end of the electric telescopic rod 3. The spray structure includes a cooling box 5 fixed to the outer wall of the tower body 1, and a spray pipe 6 fixed to the inner top wall of the tower body 1. A pump body communicating with the cooling box 5 is also provided on the outer wall of the tower body 1, and a liquid delivery pipe connects the pump body and the spray pipe 6. Both the cooling box 5 and the cleaning structure 4 are conventional technologies known to the public in the prior art; therefore, their specific structural composition and working principle will not be described in detail here.

[0026] In this embodiment, a mounting platform 7 is fixed on the outer wall of the tower body 1, and a dosing mechanism 8 for use with the cleaning mechanism is provided on the mounting platform 7. The dosing mechanism 8 includes a storage cylinder 801, and a stirring structure is provided on the storage cylinder 801. The stirring structure includes a drive shaft 802 with bearings installed inside the storage cylinder 801. A stirring shaft 803 is splinedly connected to the outside of the drive shaft 802. The bottom end of the drive shaft 802 passes through the interior of the mounting platform 7, and a gear 805 connected to a connecting plate 804 is fixed to the bottom end of the drive shaft 802. The top side of the storage cylinder 801 is sealed, and the top end of the stirring shaft 803 is rotatably connected to the top side of the storage cylinder 801.

[0027] To facilitate the delivery of the medicine storage cylinder 801, a liquid delivery structure is fixed on the upper surface of the mounting platform 7, and a linkage structure extending into the tower body 1 is provided below the mounting platform 7. The linkage structure includes a connecting plate 804, a slide 812 is provided on the connecting plate 804, a roller 813 is provided on the slide 812, a first connecting rod 810 connected to the liquid delivery structure is provided on one side of the roller 813, and a second connecting rod 811 is provided between the liquid delivery structure and the stirring structure.

[0028] Specifically, the connecting plate 804 consists of a sliding plate 8041 and a toothed plate 8042, which are fixedly connected. The toothed plate 8042 meshes with a gear 805, which drives the transmission shaft 802 to convert horizontal motion into rotational motion, providing stable power for stirring. The end of the connecting plate 804 away from the sliding plate 8041 extends into the tower body 1, where a limiting groove 11 is provided to guide the sliding plate 8041. To ensure the stability of the sliding plate 8041's movement, a limiting bracket can also be installed on the tower body 1 to limit its movement.

[0029] In this embodiment, the infusion structure includes a piston cylinder 806 fixed to the upper surface of the mounting platform 7. Two check valves 808 are fixed to the outer surface of the piston cylinder 806. The infusion structure also includes a stopper rod 807 disposed inside the piston cylinder 806. One end of the first connecting rod 810 and the second connecting rod 811 are both fixed to the outer surface of the top end of the stopper rod 807, and the other end of the second connecting rod 811 is rotatably connected to the stirring shaft 803. The bottom end of the stopper rod 807 is fixed to the piston inside the piston cylinder 806, and the top end of the stopper rod 807 extends to the outside of the piston cylinder 806. Infusion pipes 809 are fixed to both ends of the check valves 808. One infusion pipe 809 is fixedly connected to the drug storage cylinder 801, and the other infusion pipe 809 is connected to the cooling box 5. The slide 812 is fixed to the top side of the slide plate 8041. The slide 812 has an inclined groove 814 inside, and the roller 813 is rotatably connected to the inner wall of the inclined groove 814. The slide block 812 is fixed to the top side of the slide plate 8041. Its internal inclined groove 814 is connected to the roller 813 in a rolling manner, which converts the horizontal motion into the vertical motion. The first connecting rod 810 connects the stopper rod 807 and the roller 813, driving the stopper rod 807 to reciprocate. The second connecting rod 811 connects the stopper rod 807 and the stirring shaft 803, realizing the synchronous action of stirring and liquid delivery.

[0030] It should be noted that the piston cylinder 806 and the stopper rod 807 constitute a reciprocating conveying system to realize the quantitative and pressurized delivery of the agent. The two check valves 808 control the direction of liquid suction and liquid discharge respectively to prevent the agent from flowing back and to ensure the delivery efficiency. The infusion pipe 809 connects the drug storage cylinder 801 and the spray pipe 6 to realize the remote and precise delivery of the agent.

[0031] The working principle of the above embodiments is as follows:

[0032] First, the output end of the electric telescopic rod 3 pushes the cleaning structure 4 to move horizontally along the surface of the heat exchange coil 2 to scrape off the surface dirt. When the cleaning structure 4 is moved to the leftmost position, it contacts the sliding plate 8041, causing the sliding plate 8041 to slide in the limiting groove 11 and drive the toothed plate 8042 to move. The toothed plate 8042 meshes with the gear 805, and the gear 805 drives the transmission shaft 802 and the stirring shaft 803 to rotate, stirring the medicine in the medicine storage cylinder 801.

[0033] At the same time, the roller 813 of the slide block 812 rolls along the inclined slide groove 814, pushing the stopper rod 807 down. The piston cylinder 806 draws liquid from the medicine storage cylinder 801 through the check valve 808 and the infusion pipe 809. When the stopper rod 807 moves up, the pressurized liquid is delivered to the cooling box 5 through another check valve 808. The liquid is then delivered to the spray pipe 6 by the pumping function, and thus sprayed onto the heat exchange coil 2.

[0034] When the stopper rod 807 rises and falls, it drives the stirring shaft 803 to move up and down reciprocally through the second connecting rod 811, thereby improving the liquid activity of the drug storage cylinder 801.

[0035] The installation, connection, or setting methods disclosed in this embodiment are all common mechanical connection methods. Any method that can achieve its beneficial effect can be implemented. In addition, the electrical components in this embodiment are all electrically connected to the main controller and the power supply. The main controller can be a conventional known device such as a computer that plays a control role. Those skilled in the art can control the electrical components through simple programming. Moreover, the existing disclosed power connection technology is also common knowledge in the field. Therefore, the specific structural composition and working principle will not be described in detail in this embodiment.

Claims

1. A spray descaling structure for a cooling tower, comprising a tower body (1), heat exchange coils (2) fixed inside the tower body (1), a cleaning mechanism disposed inside the tower body (1) for cleaning the heat exchange coils (2), and a spray structure disposed on the tower body (1), characterized in that: An installation platform (7) is fixed on the outer wall of the tower body (1), and a dosing mechanism (8) for use with the cleaning mechanism is provided on the installation platform (7); The dosing mechanism (8) includes a drug storage cylinder (801), a stirring structure is provided on the drug storage cylinder (801), an infusion structure is fixed on the upper surface of the mounting platform (7), and a linkage structure extending into the tower body (1) is provided below the mounting platform (7). The linkage structure includes a connecting plate (804), a slide (812) is provided on the connecting plate (804), a roller (813) is provided on the slide (812), a first connecting rod (810) connected to the infusion structure is provided on one side of the roller (813), and a second connecting rod (811) is provided between the infusion structure and the stirring structure.

2. The spray descaling structure for a cooling tower according to claim 1, characterized in that: The cleaning mechanism includes an electric telescopic rod (3) fixed to the outer wall of the tower body (1), and the output end of the electric telescopic rod (3) extends into the interior of the tower body (1). A cleaning structure (4) for cleaning the heat exchange coil (2) is fixed on the output end of the electric telescopic rod (3).

3. The spray descaling structure for a cooling tower according to claim 1, characterized in that: The spray structure includes a cooling box (5) fixed to the outer wall of the tower body (1), and a spray pipe (6) is fixed on the inner top wall of the tower body (1).

4. The spray descaling structure for a cooling tower according to claim 1, characterized in that: The stirring structure includes a drive shaft (802) with a bearing installed inside the medicine storage cylinder (801), and an external spline connection of the drive shaft (802) to a stirring shaft (803). The bottom end of the drive shaft (802) passes through the interior of the mounting platform (7), and a gear (805) connected to the connecting plate (804) is fixed at the bottom end of the drive shaft (802).

5. A spray descaling structure for a cooling tower according to claim 4, characterized in that: The connecting plate (804) is composed of a sliding plate (8041) and a toothed plate (8042), and the sliding plate (8041) and the toothed plate (8042) are fixedly connected. The toothed plate (8042) meshes with a gear (805). One end of the connecting plate (804) away from the sliding plate (8041) extends into the tower body (1). A limiting groove (11) for guiding the sliding plate (8041) is provided inside the tower body (1).

6. The spray descaling structure for a cooling tower according to claim 5, characterized in that: The infusion structure includes a piston cylinder (806) fixed to the upper surface of the mounting platform (7). Two check valves (808) are fixed to the outer surface of the piston cylinder (806). The infusion structure also includes a stopper rod (807) disposed inside the piston cylinder (806). One end of the first connecting rod (810) and the second connecting rod (811) are both fixed to the outer surface of the top end of the stopper rod (807), and the other end of the second connecting rod (811) is rotatably connected to the stirring shaft (803).

7. The spray descaling structure for a cooling tower according to claim 6, characterized in that: The bottom end of the stopper rod (807) is fixed to the piston inside the piston cylinder (806), and the top end of the stopper rod (807) extends to the outside of the piston cylinder (806). Both ends of the check valve (808) are fixed with infusion tubes (809), one of which is fixedly connected to the drug storage cylinder (801).

8. A spray descaling structure for a cooling tower according to claim 5, characterized in that: The slide block (812) is fixed to the top side of the slide plate (8041). The slide block (812) has an inclined groove (814) inside. The roller (813) is in rolling connection with the inner wall of the inclined groove (814).

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