Sand prevention device of cooling tower

Abstract

The utility model discloses a cooling tower's sand prevention device, including tower body, the lower end of tower body is equipped with the sand prevention frame, and the upper and lower ends of the inner wall of sand prevention frame are respectively fixed with the limit block, and the inner wall of sand prevention frame of limit block side is provided with the filter mechanism, the tower body outer wall of sand prevention frame side is fixedly connected with the limit arm, and the limit arm is fixed with the limit arm. The upper end part of the limiting arm is movably connected with a positioning arm, the tail end of the positioning arm is fixedly provided with a sleeve, the inner wall of the sleeve is provided with an adjusting rod, the outer wall of the positioning arm on the side of the limiting arm is fixedly connected with a positioning rod, the outer wall of the positioning rod is sleeved with a sleeve, and the outer wall of the tower body above the limiting arm is fixedly connected with a positioning column. The sand prevention device of the cooling tower is convenient to seal when not used, so that sand and dust are prevented from being accumulated in the device when the device stops working, internal cleaning is avoided when the device works again, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sand prevention structures for cooling towers, and particularly to a sand prevention device for a cooling tower. Background Technique

[0002] A cooling tower is a device that uses principles such as evaporation heat dissipation, convective heat transfer, and radiative heat transfer to cool the waste heat on equipment, and is commonly found in fields such as the power industry, petrochemical industry, iron and steel industry, and chemical fiber industry. The sand prevention device of the cooling tower is an important part of the cooling tower, and its function is to prevent dust from entering the inside of the cooling tower and affecting the normal operation of the cooling tower.

[0003] However, for an efficient sand prevention and dust removal device for a cooling tower with a publication number of CN216694532U and an authorization announcement date of 20220607, although this device can prevent dust from entering the inside of the device, it is not easy to seal when not in use, resulting in easy accumulation of dust inside the device when it stops working, and thus increasing the burden on the staff when internal cleaning is required when the device resumes operation.

[0004] In view of the above problems, there is an urgent need to innovate and design on the basis of the existing sand prevention device of the cooling tower. Content of the Utility Model

[0005] The purpose of the utility model is to provide a sand prevention device for a cooling tower to solve the problem in the above background technique that the existing sand prevention device of the cooling tower is not easy to seal when not in use, resulting in easy accumulation of dust inside the device when it stops working, and thus increasing the burden on the staff when internal cleaning is required when the device resumes operation, reducing the practicability of the device.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A sand prevention device for a cooling tower, including a tower body, a sand prevention frame is installed at the lower end of the tower body, and limiting blocks are respectively fixed at the upper and lower ends of the inner wall of the sand prevention frame. A filtering mechanism is arranged on the inner wall of the sand prevention frame on the side of the limiting block. A limiting arm is fixedly connected to the outer wall of the tower body on the side of the sand prevention frame, a positioning arm is movably connected to the upper end of the limiting arm, a sleeve is fixedly installed at the end of the positioning arm, an adjusting rod is arranged inside the sleeve, and a sealing cover is movably connected to the end of the adjusting rod. A positioning rod is fixedly connected to the outer wall of the positioning arm on the side of the limiting arm, a sleeve is sleeved on the outer wall of the positioning rod, and a positioning column is fixedly connected to the outer wall of the tower body above the limiting arm.

[0007] Preferably, the filtering mechanism includes a filter frame, a filter screen, and a knob. The filter frame is movably installed on the inner wall of the sand prevention frame, the filter screen is fixedly embedded in the inner wall of the filter frame, and a knob is movably connected to the lower inner wall of the filter frame on the side of the filter screen.

[0008] Preferably, the filter frame is slidably connected to the sand prevention frame, and the filter frame is in contact with the limiting block.

[0009] Preferably, the knob is threadedly connected to the filter frame and the sand prevention frame respectively.

[0010] Preferably, the limiting arm and the positioning arm are rotatably connected, and the positioning arm is arranged in contact with the sand prevention frame.

[0011] Preferably, the sleeve and the adjusting rod are threadedly arranged, the adjusting rod is rotatably connected to the sealing cover, and the sealing cover is slidably arranged on the sand prevention frame.

[0012] Preferably, a clamping rod is fixed on the outer wall of the sealing cover on the side of the adjusting rod, and the clamping rod and the positioning arm form a sliding structure.

[0013] Preferably, the sleeve is threadedly connected to the positioning rod and the positioning column respectively.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows: The user moves the filter frame and inserts it into the sand prevention frame. As the filter frame moves, finally the filter frame fits against the limiting block. Then the user rotates the knob, and then the knob moves relative to the filter frame and inserts into the sand prevention frame, thus completing the installation of the filter screen. At this time, when the tower body works, air enters the tower body through the sand prevention frame, and then the air is filtered by the filter screen to prevent sand and dust from entering the cooling tower. Then when the tower body stops working, the sand prevention frame and the filtering mechanism stop working. At this time, the user rotates the sleeve, and then the sleeve moves along the positioning rod and disengages from the positioning column. Next, the user pushes the positioning arm to rotate around the limiting arm. As the positioning arm continues to rotate, finally the positioning arm fits against the sand prevention frame. At this time, the sealing cover and the sand prevention frame are aligned. Then the user rotates the adjusting rod. Next, the adjusting rod moves relative to the sleeve, and then the adjusting rod pushes the sealing cover to move so that the sealing cover sleeves on the sand prevention frame. As the sealing cover moves, the sealing cover drives the clamping rod to slide relative to the positioning arm, thereby sealing the sand prevention frame by the sealing cover. Therefore, the device is convenient to seal when not in use, avoiding the accumulation of sand and dust inside the device when it stops working, and thus avoiding the need for internal cleaning when the device works again, improving the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a front view structural diagram of the closed state of the sealing cover of the present utility model;

[0016] Figure 2 is a partial front sectional structural diagram of the closed state of the sealing cover of the present utility model;

[0017] Figure 3 is a partial front sectional structural diagram of the open state of the sealing cover of the present utility model;

[0018] Figure 4 is of the present utility model Figure 2 the enlarged structural diagram at A in;

[0019] Figure 5 This is a schematic front sectional view of the filtering mechanism of the present utility model.

[0020] In the figure: 1, tower body; 2, sand protection frame; 3, limit block; 4, filtering mechanism; 401, filter frame; 402, filter screen; 403, knob; 5, limit arm; 6, positioning arm; 7, sleeve; 8, adjusting rod; 9, sealing cover; 10, clamping rod; 11, positioning rod; 12, sleeve; 13, positioning column. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Please refer to Figures 1-5 , the present utility model provides a technical solution: a sand protection device for a cooling tower, including a tower body 1, a sand protection frame 2, a limit block 3, a filtering mechanism 4, a filter frame 401, a filter screen 402, a knob 403, a limit arm 5, a positioning arm 6, a sleeve 7, an adjusting rod 8, a sealing cover 9, a clamping rod 10, a positioning rod 11, a sleeve 12 and a positioning column 13. A sand protection frame 2 is installed at the lower end of the tower body 1, and limit blocks 3 are respectively fixed at the upper and lower ends of the inner wall of the sand protection frame 2, and a filtering mechanism 4 is installed on the inner wall of the sand protection frame 2 on the side of the limit block 3. The filtering mechanism 4 includes a filter frame 401, a filter screen 402 and a knob 403, and the filter frame 401 is movably connected to the inner wall of the sand protection frame 2, and a filter screen 402 is fixedly embedded in the inner wall of the filter frame 401, and a knob 403 is movably installed on the lower inner wall of the filter frame 401 on the side of the filter screen 402, which is convenient for filtering the air entering the cooling tower through the filtering mechanism 4, so as to avoid sand and dust from entering the cooling tower. The filter frame 401 and the sand protection frame 2 form a sliding structure, and the filter frame 401 is in fit connection with the limit block 3, which is convenient for the filter frame 401 to slide relative to the sand protection frame 2 for disassembly and assembly, and for limiting the filter frame 401 through the limit block 3. The knob 403 is threadedly arranged with the filter frame 401 and the sand protection frame 2 respectively, which is convenient for the user to rotate the knob 403, so that the knob 403 moves downward relative to the filter frame 401 and inserts into the sand protection frame 2, thereby limiting the filter frame 401. First, as Figure 3 and Figure 5As shown, the user moves the filter frame 401 and inserts it into the sand protection frame 2. As the filter frame 401 moves, finally the filter frame 401 fits against the limit block 3. Then the user rotates the knob 403. Next, the knob 403 moves relative to the filter frame 401 and inserts into the sand protection frame 2, thus completing the installation of the filter screen 402. At this time, when the tower body 1 is working, air enters the tower body 1 through the sand protection frame 2, and then the air is filtered by the filter screen 402 to prevent sand and dust from entering the cooling tower.

[0023] A limit arm 5 is fixedly arranged on the outer wall of the tower body 1 on the side of the sand protection frame 2. The upper end of the limit arm 5 is movably installed with a positioning arm 6. The end of the positioning arm 6 is fixedly connected with a sleeve 7. The inner wall of the sleeve 7 is installed with an adjusting rod 8. The end of the adjusting rod 8 is movably provided with a sealing cover 9. The limit arm 5 and the positioning arm 6 are rotatably connected, and the positioning arm 6 is in contact with the sand protection frame 2, which is convenient for the user to push the positioning arm 6 to rotate around the limit arm 5. When the positioning arm 6 fits against the sand protection frame 2, the sealing cover 9 is aligned with the sand protection frame 2. The sleeve 7 and the adjusting rod 8 are threadedly connected, and the adjusting rod 8 and the sealing cover 9 are rotatably connected. The sealing cover 9 and the sand protection frame 2 are slidably connected, which is convenient for the user to rotate the adjusting rod 8, so that the adjusting rod 8 moves relative to the sleeve 7, thereby driving the sealing cover 9 to be sleeved outside the sand protection frame 2, so that the sealing cover 9 seals the sand protection frame 2 to prevent sand and dust from accumulating inside when the device stops working. A clamping rod 10 is fixed on the outer wall of the sealing cover 9 on the side of the adjusting rod 8, and the clamping rod 10 and the positioning arm 6 are slidably arranged, which is convenient for the clamping rod 10 to slide relative to the positioning arm 6 when the sealing cover 9 moves, so that the sealing cover 9 moves stably.

[0024] A positioning rod 11 is fixedly connected to the outer wall of the positioning arm 6 on the side of the limit arm 5. A sleeve 12 is sleeved on the outer wall of the positioning rod 11. A positioning column 13 is fixedly connected to the outer wall of the tower body 1 above the limit arm 5. The sleeve 12 is threadedly arranged with the positioning rod 11 and the positioning column 13 respectively, which is convenient for the sleeve 12 to move along the positioning rod 11 and be sleeved on the positioning column 13, so as to limit the opened sealing cover 9. When the tower body 1 stops working, as Figures 1-4 shown, the sand protection frame 2 and the filtering mechanism 4 stop working. At this time, the user rotates the sleeve 12, then the sleeve 12 moves along the positioning rod 11 and disengages from the positioning column 13. Next, the user pushes the positioning arm 6 to rotate around the limit arm 5 through the handle on the surface of the positioning arm 6. As the positioning arm 6 continues to rotate, finally the positioning arm 6 fits against the sand protection frame 2. At this time, the sealing cover 9 is aligned with the sand protection frame 2. Then the user rotates the adjusting rod 8. Next, the adjusting rod 8 moves relative to the sleeve 7. Then the adjusting rod 8 pushes the sealing cover 9 to move so that the sealing cover 9 is sleeved on the sand protection frame 2. As the sealing cover 9 moves, the sealing cover 9 drives the clamping rod 10 to slide relative to the positioning arm 6, so as to seal the sand protection frame 2 through the sealing cover 9. Therefore, it is convenient to seal when the device is not in use, preventing sand and dust from accumulating inside when the device stops working, thus avoiding the need for internal cleaning when the device starts working again, and improving the practicability of the device.

[0025] Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A sand prevention device for a cooling tower, comprising a tower body (1), characterized in that: The lower end of the tower body (1) is provided with a sandproof frame (2), and upper and lower ends of the inner wall of the sandproof frame (2) are respectively fixed with limit blocks (3), and the inner wall of the sandproof frame (2) on the side of the limit blocks (3) is provided with a filtering mechanism (4), the outer wall of the tower body (1) on the side of the sandproof frame (2) is fixedly connected with a limit arm (5), and the upper end of the limit arm (5) is movably connected with a positioning arm (6), and the end of the positioning arm (6) is fixedly installed with a sleeve (7), and the inner wall of the sleeve (7) is provided with an adjusting rod (8), and the end of the adjusting rod (8) is movably connected with a sealing cover (9), the outer wall of the positioning arm (6) on the side of the limit arm (5) is fixedly connected with a positioning rod (11), and the outer wall of the positioning rod (11) is sleeved with a sleeve (12), and the outer wall of the tower body (1) above the limit arm (5) is fixedly connected with a positioning column (13).

2. The anti-sand device for a cooling tower according to claim 1, characterized in that: The filtering mechanism (4) comprises a filter frame (401), a filter screen (402) and a knob (403), wherein the filter frame (401) is movably mounted on the inner wall of the sand prevention frame (2), the filter screen (402) is embedded and fixed in the inner wall of the filter frame (401), and the knob (403) is movably connected to the inner wall at the lower end of the filter frame (401) on the side of the filter screen (402).

3. The anti-sand device for a cooling tower according to claim 2, characterized in that: The filter frame (401) and the anti-sand frame (2) are slidably connected, and the filter frame (401) and the limiting block (3) are in close contact with each other.

4. The anti-sand device for a cooling tower according to claim 2, characterized in that: The knob (403) is threadedly connected to the filter frame (401) and the sand-proof frame (2) respectively.

5. The anti-sand device for a cooling tower according to claim 1, characterized in that: The limiting arm (5) and the positioning arm (6) are rotatably connected, and the positioning arm (6) and the anti-sand frame (2) are arranged in close contact.

6. The anti-sand device for a cooling tower according to claim 1, characterized in that: The sleeve (7) and the adjusting rod (8) are threadedly arranged, the adjusting rod (8) and the sealing cover (9) are rotatably connected, and the sealing cover (9) and the anti-sand frame (2) are slidably arranged.

7. The anti-sand device for a cooling tower according to claim 1, characterized in that: A clamping rod (10) is fixed to the outer wall of the sealing cover (9) on the side of the adjusting rod (8), and the clamping rod (10) and the positioning arm (6) form a sliding structure.

8. The anti-sand device for a cooling tower according to claim 1, characterized in that: The sleeve (12) is threadedly connected to the positioning rod (11) and the positioning column (13) respectively.

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