Sand prevention device for cooling tower

Abstract

The sand prevention device for the cooling tower comprises a bearing box with the front end and the rear end opened, a sand-blown sand net is arranged in the bearing box, the sand prevention device further comprises a cleaning piece and a storage box, the cleaning piece comprises a U-shaped plate, a screw rod, a rotating rod and a driving ring, and the U-shaped plate is arranged on the front side of the sand-blown sand net in a left-right sliding mode; a screw driven by a motor to rotate is arranged in the bearing box on the front side of the sand wind net, the screw is in threaded connection with an upper side plate of a U-shaped plate, a rotating rod is rotationally connected between the upper inner face and the lower inner face of the U-shaped plate, the upper portion and the lower portion of the rotating rod are fixedly sleeved with driving rings, and the rear end of each driving ring is in friction contact with the sand wind net; bristles are horizontally connected to the peripheral wall of the rotating rod between the two driving rings; a first through hole is formed in the bearing box bottom plate on the lower side of the U-shaped plate, an upper end opening of the storage box is fixedly connected with the outer bottom face of the bearing box, and a lower end opening is detachably connected with a sealing plate. The utility model solves the problem that the sandstorm net for blocking sandstorm on the cooling tower is easy to block.

Description

Technical Field

[0001] This utility model relates to the field of cooling tower technology, specifically to a sand-proof device for cooling towers. Background Technology

[0002] A cooling tower is a device that uses water as a circulating coolant to absorb heat from the system and release it into the atmosphere to lower the water temperature. Its working principle is mainly based on the heat exchange between water and airflow, dissipating excess heat through evaporative heat dissipation, convective heat transfer, and radiative heat transfer, thereby lowering the water temperature and ensuring the normal operation of the system. During use, especially in dusty weather, external dust can enter the cooling tower through the air inlet, adversely affecting the internal components. To prevent dust from entering, the use of sand-blocking nets is a common method, effectively preventing sand and impurities from entering the cooling tower.

[0003] However, after a period of use, sand or other impurities will clog the mesh of the sand-blowing net. If it is not cleaned in time, it will cause poor air circulation through the sand-blowing net. Summary of the Invention

[0004] This invention addresses the problem of sand-blocking nets on cooling towers being easily clogged, by providing a sand-proof device for cooling towers that facilitates cleaning of the sand-blocking nets and improves the smooth flow of air through them.

[0005] To solve the above problems, the technical solution of this utility model is:

[0006] A sand-proof device for cooling towers includes a carrier box with openings at both ends. A sand-blowing net is installed inside the carrier box. The device also includes a cleaning component and a storage box. The cleaning component comprises a U-shaped plate, a screw, a rotating rod, and a drive ring. The U-shaped plate is slidably positioned on the front side of the sand-blowing net. A screw, driven by a motor, is installed inside the carrier box on the front side of the sand-blowing net. The screw is threadedly connected to the upper side plate of the U-shaped plate. A rotating rod is rotatably connected between the upper and lower inner surfaces of the U-shaped plate. Drive rings are fixedly fitted onto the upper and lower parts of the rotating rod. The rear end of each drive ring rubs against the sand-blowing net. Multiple horizontal bristles, longer than the width of the drive ring, are connected to the circumferential wall of the rotating rod between two drive rings. A through hole is provided on the bottom plate of the carrier box on the lower side of the U-shaped plate. The upper opening of the storage box is fixedly connected to the outer bottom surface of the carrier box, and the lower opening is detachably connected to a sealing plate.

[0007] Furthermore, a limiting rod is provided in the lower part of the bearing box on the front side of the sand-blowing net. The two ends of the limiting rod are respectively connected to the left and right side plates of the bearing box, and the lower side plate of the U-shaped plate is provided with a through hole for the limiting rod to pass through.

[0008] Furthermore, the left end of the screw is rotatably connected to the left side plate of the bearing box, and the right end of the screw moves through the right side plate of the bearing box and is connected to the motor output end fixed on the bearing box. The upper side plate of the U-shaped plate is provided with threaded holes that correspond to the screw.

[0009] Furthermore, the screw on the left side of the U-shaped plate is fitted with an elastic tube, the left end of which is connected to the left side plate of the bearing box and the right end of which is connected to the left side of the upper side plate of the U-shaped plate; the screw on the right side of the U-shaped plate is fitted with an elastic tube, the right end of which is connected to the right side plate of the bearing box and the left end of which is connected to the right side of the upper side plate of the U-shaped plate.

[0010] Furthermore, a second through hole is provided on the bottom plate of the bearing box on the rear side of the sand-blowing net, and a partition net is provided inside the bearing box on the rear side of the second through hole.

[0011] Furthermore, bolts are installed near the four corners of the sealing plate, and the end of each bolt is threaded to the side plate of the bearing box.

[0012] The beneficial effects of this utility model through the above technical solution are as follows:

[0013] When the motor-driven screw of this invention rotates forward or reverse, it can drive the U-shaped plate to move from left to right or from right to left. When the U-shaped plate moves to the left or right, the drive ring rubs against the sand and dust net, causing the drive ring to drive the rotating rod to rotate. The bristles on the rotating rod can clean the sand and dust net. The sand and other impurities that are cleaned off by the bristles can be collected by the storage box. After the sand and dust net is cleaned, the airflow through the sand and dust net can be enhanced. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a right-side sectional view of the present invention;

[0016] Figure 3 This is a sectional front view of the U-shaped plate connecting the bearing box of this utility model (sectional view from the screw).

[0017] Figure 4 This is a structural schematic diagram of the cleaning component of this utility model.

[0018] The attached diagram is labeled as follows: 1. Carrier box, 2. Sand net, 3. U-shaped plate, 4. Screw, 5. Rotating rod, 6. Drive ring, 7. Motor, 8. Brush bristles, 9. Through hole one, 10. Storage box, 11. Sealing plate, 12. Limiting rod, 13. Perforation, 14. Threaded hole, 15. Elastic tube one, 16. Elastic tube two, 17. Through hole two, 18. Partition net, 19. Bolt. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0020] like Figures 1-4 As shown, a sand-proof device for cooling towers includes a carrying box 1 with openings at both ends. The carrying box 1 is a rectangular box, and a sand-proof net 2 is installed inside the carrying box 1. The sides of the sand-proof net 2 are fixedly connected to the inner wall of the carrying box 1. It also includes a cleaning component and a storage box 10. The cleaning component includes a U-shaped plate 3, a screw 4, a rotating rod 5, and a drive ring 6. The left, right, and rear ends of the U-shaped plate 3 are open, and the U-shaped plate 3 is slidably positioned on the front side of the sand-proof net 2. A screw 4, driven by a motor 7, is installed inside the carrying box 1 on the front side of the sand-proof net 2. The screw 4 is threadedly connected to the upper side plate of the U-shaped plate 3, and a rotatable connection is formed between the upper and lower inner surfaces of the U-shaped plate 3. The rotating rod 5 is a round rod. Both the upper and lower parts of the rotating rod 5 are fitted with driving rings 6. The driving ring is a circular ring that is fixedly connected to the circumference of the rotating rod 5. The rear end of each driving ring 6 is in frictional contact with the sand-blowing net 2. Multiple horizontal bristles 8 with a length greater than the width of the driving ring are connected to the circumference of the rotating rod 5 between two driving rings 6. The bottom plate of the bearing box 1 on the lower side of the U-shaped plate 3 is provided with a through hole 9. The through hole 9 is a rectangular hole with one end facing left and the other end facing right. The storage box 10 is a rectangular box with openings at the upper and lower ends. The upper opening of the storage box 10 is fixedly connected to the outer bottom surface of the bearing box 1, and the lower opening is detachably connected to the sealing plate 11.

[0021] A limiting rod 12 is provided in the lower part of the bearing box 1 on the front side of the sand-blowing net 2. The limiting rod 12 is a round rod, and the two ends of the limiting rod 12 are respectively connected to the left and right side plates of the bearing box 1. The lower side plate of the U-shaped plate 3 is provided with a through hole 13 for the limiting rod 12 to pass through, and the through hole 13 slides in contact with the limiting rod 12.

[0022] The left end of the screw 4 is rotatably connected to the left side plate of the bearing box 1, and the right end of the screw 4 moves through the right side plate of the bearing box 1 and is connected to the output end of the motor 7 fixed on the bearing box 1. The upper side plate of the U-shaped plate 3 is provided with a threaded hole 14 that matches the screw 4.

[0023] The screw 4 on the left side of the U-shaped plate 3 is fitted with an elastic tube 15. The left end of the elastic tube 15 is connected to the left side plate of the bearing box 1, and the right end is connected to the left side of the upper side plate of the U-shaped plate 3. The screw 4 on the right side of the U-shaped plate 3 is fitted with an elastic tube 26. The right end of the elastic tube 216 is connected to the right side plate of the bearing box 1, and the left end is connected to the right side of the upper side plate of the U-shaped plate 3. The elastic tubes 15 and 216 can prevent sand and gravel from entering the threads of the screw 4, thus avoiding affecting the threaded connection between the screw 4 and the U-shaped plate 3.

[0024] The bottom plate of the carrier box 1 on the rear side of the sand-blowing net 2 is provided with a through hole 2 17. The through hole 2 17 is a rectangular hole with one end facing left and the other end facing right. The carrier box 1 on the rear side of the through hole 2 17 is provided with a partition net 18. The side of the partition net 18 is fixedly connected to the inner wall of the carrier box 1.

[0025] Bolts 19 are installed near the four corners of the sealing plate 11, and the end of each bolt 19 is threaded to the side plate of the bearing box 1.

[0026] In use, the rear end of this utility model is connected to the air inlet of the cooling tower, and the front opening of the bearing box 1 is the air inlet side. The fan on the cooling tower drives the outside air to enter the cooling tower through the bearing box 1. Sand and impurities are blocked by the sand and gravel net 2. After the sand and gravel net 2 intercepts the sand and gravel for a period of time, the motor 7 is started. The motor 7 drives the screw 4 to rotate forward. When the screw 4 rotates, it drives the U-shaped plate 3 to move from left to right until the U-shaped plate 3 approaches the right side plate of the bearing box 1. During the movement of the U-shaped plate 3 from left to right, due to the frictional contact between the two drive rings 6 on the rotating rod 5 and the sand and gravel net 2, the two drive rings 6... The rotating ring 6 drives the rotating rod 5 to rotate. The bristles 8 on the rotating rod 5 clean the sand and gravel and other impurities clogging the sand and gravel screen 2. Most of the sand and gravel and other impurities are cleaned by the bristles 8, fall off the front side of the sand and gravel screen 2, and enter the storage box 10 through the first through hole 9. A small part of the sand and gravel and other impurities fall off the rear side of the sand and gravel screen 2 and enter the storage box 10 through the second through hole 17. The partition net 18 can further intercept sand and gravel and other impurities, further preventing sand and gravel from entering the cooling tower. Similarly, the motor 7 drives the screw 4 to rotate in the opposite direction, and the U-shaped plate 3 moves from right to left, which can also clean the sand and gravel screen 2.

[0027] When it is necessary to clean the sand and gravel in the storage box 10, the sealing plate 11 can be removed to clean the sand and gravel and other impurities collected in the storage box 10.

[0028] The preferred embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Any equivalent or equivalent modifications or substitutions to the technical solutions of the present utility model without departing from the spirit of the present utility model or the scope of disclosure shall fall within the protection scope of the present utility model.

Claims

1. A sand-proof device for cooling towers, comprising a support box (1) with openings at the front and rear ends, wherein a sand-proof net (2) is provided inside the support box (1), characterized in that, It also includes a cleaning component and a storage box (10). The cleaning component includes a U-shaped plate (3), a screw (4), a rotating rod (5), and a drive ring (6). The U-shaped plate (3) is slidably disposed on the front side of the sand-blowing net (2). The bearing box (1) on the front side of the sand-blowing net (2) is provided with a screw (4) driven to rotate by a motor (7). The screw (4) is threadedly connected to the upper side plate of the U-shaped plate (3). A rotating rod (5) is rotatably connected between the upper and lower inner surfaces of the U-shaped plate (3). (5) is fitted with drive rings (6) on both the upper and lower parts. The rear end of each drive ring (6) is in friction contact with the sand and dust net (2). The circumference of the rotating rod (5) between the two drive rings (6) is connected with multiple horizontal brush bristles (8) with a length greater than the width of the drive ring. The bottom plate of the carrier box (1) on the lower side of the U-shaped plate (3) is provided with a through hole (9). The upper opening of the storage box (10) is fixedly connected to the outer bottom surface of the carrier box (1), and the lower opening is detachably connected to the sealing plate (11).

2. The sand-proof device for a cooling tower according to claim 1, characterized in that, The lower part of the bearing box (1) on the front side of the sandstorm net (2) is provided with a limiting rod (12). The two ends of the limiting rod (12) are respectively connected to the left and right side plates of the bearing box (1). The lower side plate of the U-shaped plate (3) is provided with a through hole (13) for the limiting rod (12) to pass through.

3. A sand-proof device for cooling towers according to claim 1, characterized in that, The left end of the screw (4) is rotatably connected to the left side plate of the bearing box (1), and the right end of the screw (4) moves through the right side plate of the bearing box (1) and is connected to the output end of the motor (7) fixed on the bearing box (1). The upper side plate of the U-shaped plate (3) is provided with a threaded hole (14) that matches the screw (4).

4. A sand-proof device for cooling towers according to claim 1, characterized in that, The screw (4) on the left side of the U-shaped plate (3) is covered with an elastic tube (15). The left end of the elastic tube (15) is connected to the left side plate of the bearing box (1), and the right end is connected to the left side of the upper side plate of the U-shaped plate (3). The screw (4) on the right side of the U-shaped plate (3) is covered with an elastic tube (16). The right end of the elastic tube (16) is connected to the right side plate of the bearing box (1), and the left end is connected to the right side of the upper side plate of the U-shaped plate (3).

5. A sand-proof device for a cooling tower according to claim 1, characterized in that, The bottom plate of the bearing box (1) on the rear side of the sandstorm net (2) is provided with a through hole two (17), and a partition net (18) is provided inside the bearing box (1) on the rear side of the through hole two (17).

6. A sand-proof device for a cooling tower according to claim 1, characterized in that, Bolts (19) are installed near the four corners of the sealing plate (11), and the end of each bolt (19) is threaded to the side plate of the bearing box (1).

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