Drawing cylinder of cooling tower

Abstract

The utility model relates to the technical field of cooling towers, and discloses a cooling tower draft tube which comprises a draft tube body, the top of the draft tube body is fixedly connected with a connecting rod, the top of the connecting rod is fixedly connected with a rain cover, the upper surface of mounting angle iron is fixedly connected with a water pump, and the upper surface of the mounting angle iron is fixedly connected with a water pump. The top of the water suction pump is fixedly connected with a water suction pipe, one side of the water suction pump is fixedly connected with a water outlet pipe, the outer surface of the air pulling barrel body is sleeved with a rainwater collecting box, the surface of the rainwater collecting box is rotationally connected with a shielding cover, and a reset mechanism is arranged between the shielding cover and the rainwater collecting box. According to the draft tube of the cooling tower, by arranging the water suction pump, the water suction pipe, the water outlet pipe, the shielding cover, the turbine fan, the aluminum disc and the like, the efficiency of external airflow entering the draft tube body is improved, rainwater is effectively prevented from being rapidly evaporated after entering the rainwater collecting box, and meanwhile the interior of the draft tube body is cleaned through the collected rainwater.

Description

[0001] The utility model relates to the technical field of cooling towers, in particular to an air extraction tube of a cooling tower. Background Art

[0002] A cooling tower is a device that uses the contact between air and water (directly or indirectly) to cool water. It uses water as a circulating coolant, absorbs heat from the system and discharges it into the atmosphere, thereby lowering the temperature inside the tower and achieving the recycling of cooling water. In a cooling tower, the temperature of hot water is high, and the temperature of the air flowing over the water surface is low. The water transfers heat to the air, which is carried away by the air and dissipated into the atmosphere.

[0003] After consulting the relevant patent document CN209559004U, it is found that there are still some problems with the existing cooling tower air duct. The optimization schemes currently on the market are mainly: by setting a spoiler, the speed of gas passing through the air duct body is slowed down, the heat exchange effect between gas and liquid is improved, and a better cooling effect is achieved; a water accumulation bucket is set to facilitate the collection of rainwater, save energy, and help save the use cost; at the same time, the annular mesh plate is set to filter the rainwater to avoid clogging the water guide hole, but the rainwater collected by the air duct is not restricted to moisture evaporation, and it is inconvenient to clean the inner wall of the air duct body. At the same time, when installing the air duct body, it is necessary to open a hole for installation, which increases the installation time, and no auxiliary drainage optimization is made for the external airflow entering the interior of the air duct body. In view of the above problems, by setting a water pump, a water pipe, a water outlet pipe, a shielding cover, a turbine fan and an aluminum plate, the efficiency of the external airflow entering the interior of the air duct body is improved, and the rainwater is effectively prevented from evaporating rapidly after entering the rainwater collection box, and the collected rainwater is used to clean the interior of the air duct body. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a cooling tower air duct.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a cooling tower air duct comprises an air duct body, the bottom of the air duct body is fixedly connected with a meshing ring, the top of the air duct body is fixedly connected with a connecting rod, the top of the connecting rod is fixedly connected with a rain shield, one side of the air duct body is fixedly connected with a mounting angle iron, the interior of the mounting angle iron is penetrated by a fastening bolt, the upper surface of the mounting angle iron is fixedly connected with a water pump, the top of the water pump is fixedly connected with a water pump, one side of the water pump is fixedly connected with a water outlet pipe, the outer surface of the air duct body is sleeved with a rainwater collection box, the surface of the rainwater collection box is rotatably connected with a shielding cover, the top of the water outlet pipe is fixedly connected with a nozzle, the inner wall of the air duct body is fixedly connected with a support seat, the upper surface of the support seat is rotatably connected with a turbine fan, the bottom of the support seat is fixedly connected with a connecting column, the bottom of the connecting column is fixedly connected with an aluminum plate, and a reset mechanism is provided between the shielding cover and the rainwater collection box.

[0006] As a further improvement of the above solution, the outer surface of the meshing ring is fixedly connected to the inner wall of the air duct body, and the bottom of the meshing ring extends to the outer end of the bottom of the air duct body, and the mounting angle iron is fixedly connected to the outer wall of the air duct body.

[0007] As a further improvement of the above scheme, the top of the water suction pipe is fixedly connected to the outer wall of the rainwater collection box, the top of the water outlet pipe passes through the inside of the connecting rod, the horizontal height of the nozzle is lower than the top height of the water outlet pipe, and the nozzle is located inside the air extractor body.

[0008] As a further improvement of the above solution, the inner wall of the rainwater collection box is fixedly connected to the outer wall of the air duct body, the interior of the rainwater collection box is hollow, and a plurality of gaps are opened on the surface of the aluminum plate.

[0009] As a further improvement of the above solution, the reset mechanism includes a connecting block, the bottom of the connecting block is fixedly connected to a reset spring, the other end of the reset spring is fixedly connected to a support base, and the support base is fixedly connected to the rotating shaft of the shielding cover.

[0010] As a further improvement of the above solution, the connecting block is fixedly connected to the upper surface of the rainwater collection box, and the end of the support base away from the return spring passes through the inner wall of the rainwater collection box and is fixedly connected to the rotating shaft of the shielding cover at the inner wall of the rainwater collection box.

[0011] As a further improvement of the above scheme, the mounting angle irons are symmetrically distributed with the air duct body as the axis, the central area of ​​the rain shield cover is higher than its edge area, one side edge of the rain shield cover is located directly above the shielding cover, the diameter of the aluminum disk is half of the inner diameter of the air duct body, and the aluminum disk is located at the center of the air duct body.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. When installing the duct body of this cooling tower, insert the meshing ring into the top entrance of the cooling tower, and then tighten the fastening bolts so that the top of the fastening bolts are against the outer wall of the cooling tower to complete the fixation of the duct body, which is convenient and efficient. Due to the rotation of the turbine fan, the airflow flowing through the top of the duct body is sucked into the duct body, and the airflow will pass through the surface of the aluminum disk to cool the aluminum disk. Since the aluminum disk is inside the duct body, the hot gas inside the cooling tower will heat the aluminum disk. After being cooled by the turbine fan, the heat exchange efficiency is improved.

[0014] 2. When it rains, the rain will fall from the surface of the rain shield to the surface of the shielding cover. Under the action of gravity, the rain will press the shielding cover, causing the shielding cover to rotate the supporting base, thereby stretching the reset spring. When the rain flows into the rainwater collection box, the shielding cover will reset under the action of the reset spring, completing the sealing of the rainwater collection box to prevent the evaporation of rainwater. After using the air duct for a long time, dust or debris will adhere to the wall of the duct. Start the water pump so that the rainwater inside the rainwater collection box passes through the outlet pipe and is sprayed out from the nozzle to clean the inner wall of the air duct, reducing maintenance costs and improving resource collection and utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is the front view of the utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the connection between the aluminum disk and the turbofan of the utility model;

[0018] Figure 4 This is a schematic diagram of the connection between the rainwater collection box and the shielding cover of the utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the reset mechanism of the utility model.

[0020] Description of main symbols:

[0021] 1. Air duct body; 2. Engaging ring; 3. Connecting rod; 4. Rain shield; 5. Mounting angle iron; 6. Fastening bolts; 7. Water pump; 8. Water pipe; 9. Rainwater collection box; 10. Water outlet pipe; 11. Shielding cover; 12. Nozzle; 13. Support seat; 14. Turbofan; 15. Connecting column; 16. Aluminum plate; 17. Reset mechanism; 171. Connecting block; 172. Reset spring; 173. Support base. DETAILED DESCRIPTION

[0022] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment. Example

[0023] Please combine Figure 1-5 A cooling tower air duct of the present embodiment comprises an air duct body 1, a meshing ring 2 is fixedly connected to the bottom of the air duct body 1, a connecting rod 3 is fixedly connected to the top of the air duct body 1, a rain shield 4 is fixedly connected to the top of the connecting rod 3, a mounting angle iron 5 is fixedly connected to one side of the air duct body 1, a fastening bolt 6 is passed through the interior of the mounting angle iron 5, a water pump 7 is fixedly connected to the upper surface of the mounting angle iron 5, a water pump 8 is fixedly connected to the top of the water pump 7, and an outlet is fixedly connected to one side of the water pump 7. A water pipe 10, the outer surface of the air duct body 1 is sleeved with a rainwater collecting box 9, the surface of the rainwater collecting box 9 is rotatably connected with a shielding cover 11, the top of the water outlet pipe 10 is fixedly connected with a nozzle 12, the inner wall of the air duct body 1 is fixedly connected with a support seat 13, the upper surface of the support seat 13 is rotatably connected with a turbine fan 14, the bottom of the support seat 13 is fixedly connected with a connecting column 15, the bottom of the connecting column 15 is fixedly connected with an aluminum plate 16, and a reset mechanism 17 is provided between the shielding cover 11 and the rainwater collecting box 9.

[0024] The outer surface of the meshing ring 2 is fixedly connected to the inner wall of the air duct body 1 , and the bottom of the meshing ring 2 extends to the outer end of the bottom of the air duct body 1 , and the mounting angle iron 5 is fixedly connected to the outer wall of the air duct body 1 .

[0025] The top of the water suction pipe 8 is fixedly connected to the outer wall of the rainwater collection box 9, the top of the water outlet pipe 10 passes through the inside of the connecting rod 3, the horizontal height of the nozzle 12 is lower than the top height of the water outlet pipe 10, and the nozzle 12 is located inside the air duct body 1.

[0026] The inner wall of the rainwater collection box 9 is fixedly connected to the outer wall of the air duct body 1 . The interior of the rainwater collection box 9 is hollow, and a plurality of gaps are formed on the surface of the aluminum plate 16 .

[0027] The reset mechanism 17 includes a connecting block 171 , a reset spring 172 is fixedly connected to the bottom of the connecting block 171 , and the other end of the reset spring 172 is fixedly connected to a support base 173 , and the support base 173 is fixedly connected to the rotating shaft of the shielding cover 11 .

[0028] The connecting block 171 is fixedly connected to the upper surface of the rainwater collecting box 9, and the end of the supporting base 173 away from the return spring 172 penetrates the inner wall of the rainwater collecting box 9 and is fixedly connected to the rotating shaft of the shielding cover 11 at the inner wall of the rainwater collecting box 9.

[0029] The installation angle irons 5 are symmetrically distributed with the air duct body 1 as the axis, the central area of ​​the rain shield cover 4 is higher than its edge area, one side edge of the rain shield cover 4 is located directly above the shielding cover 11, the diameter of the aluminum plate 16 is half of the inner diameter of the air duct body 1, and the aluminum plate 16 is located at the center of the air duct body 1.

[0030] The working principle of a cooling tower air duct in an embodiment of the present application is: when installing the air duct body 1, the engaging ring 2 is clamped into the top entrance of the cooling tower, and then the fastening bolt 6 is tightened so that the top of the fastening bolt 6 is against the outer wall of the cooling tower, thereby completing the fixation of the air duct body 1, which is convenient and efficient. Due to the rotation of the turbine fan 14, the air flow flowing through the top of the air duct body 1 is sucked into the air duct body 1, and the air flow will pass through the surface of the aluminum plate 16 to cool the aluminum plate 16. Since the aluminum plate 16 is located inside the air duct body 1, the hot flow gas inside the cooling tower will heat the aluminum plate 16. After being cooled by the turbine fan 14, the heat exchange efficiency is improved. When it rains, rainwater will pass through the surface of the rain shield 4 and fall onto the surface of the shielding cover 11. Under the action of gravity, the rainwater will press the shielding cover 11, so that the shielding cover 11 drives the supporting base 173 to rotate, thereby stretching the reset spring 172. When the rainwater flows into the rainwater collection box 9, the shielding cover 11 is reset under the action of the reset spring 172, completing the sealing of the rainwater collection box 9 to prevent the evaporation of rainwater. After the air duct body 1 is used for a long time, dust or debris will adhere to its wall. The water pump 7 is started to allow rainwater in the rainwater collection box 9 to pass through the outlet pipe 10 and be sprayed out from the nozzle 12 to clean the inner wall of the air duct body 1, thereby reducing maintenance costs and improving resource collection utilization.

[0031] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A cooling tower air duct, characterized in that: The invention comprises a blower body (1), wherein a meshing ring (2) is fixedly connected to the bottom of the blower body (1), a connecting rod (3) is fixedly connected to the top of the blower body (1), a rain shield (4) is fixedly connected to the top of the connecting rod (3), a mounting angle iron (5) is fixedly connected to one side of the blower body (1), a fastening bolt (6) passes through the inside of the mounting angle iron (5), a water pump (7) is fixedly connected to the upper surface of the mounting angle iron (5), a water pump (8) is fixedly connected to the top of the water pump (7), a water outlet pipe (10) is fixedly connected to one side of the water pump (7), and the blower body (1) is fixedly connected to the water outlet pipe (10). The outer surface of the air duct body (1) is sleeved with a rainwater collection box (9), the surface of the rainwater collection box (9) is rotatably connected to a shielding cover (11), the top of the water outlet pipe (10) is fixedly connected to a nozzle (12), the inner wall of the air duct body (1) is fixedly connected to a support seat (13), the upper surface of the support seat (13) is rotatably connected to a turbine fan (14), the bottom of the support seat (13) is fixedly connected to a connecting column (15), the bottom of the connecting column (15) is fixedly connected to an aluminum plate (16), and a reset mechanism (17) is provided between the shielding cover (11) and the rainwater collection box (9).

2. A cooling tower air duct as claimed in claim 1, characterized in that: The outer surface of the meshing ring (2) is fixedly connected to the inner wall of the air duct body (1), and the bottom of the meshing ring (2) extends to the outer end of the bottom of the air duct body (1), and the mounting angle iron (5) is fixedly connected to the outer wall of the air duct body (1).

3. A cooling tower air duct as claimed in claim 1, characterized in that: The top of the water suction pipe (8) is fixedly connected to the outer wall of the rainwater collection box (9), the top of the water outlet pipe (10) passes through the interior of the connecting rod (3), the horizontal height of the nozzle (12) is lower than the top height of the water outlet pipe (10), and the nozzle (12) is located inside the air vent body (1).

4. A cooling tower air duct as claimed in claim 1, characterized in that: The inner wall of the rainwater collection box (9) is fixedly connected to the outer wall of the air duct body (1); the interior of the rainwater collection box (9) is hollow, and a plurality of gaps are formed on the surface of the aluminum plate (16).

5. A cooling tower air duct as claimed in claim 1, characterized in that: The reset mechanism (17) comprises a connecting block (171), the bottom of the connecting block (171) is fixedly connected to a reset spring (172), the other end of the reset spring (172) is fixedly connected to a support base (173), and the support base (173) is fixedly connected to the rotating shaft of the shielding cover (11).

6. A cooling tower air duct as claimed in claim 5, characterized in that: The connecting block (171) is fixedly connected to the upper surface of the rainwater collection box (9); one end of the supporting base (173) away from the return spring (172) penetrates the inner wall of the rainwater collection box (9) and is fixedly connected to the rotating shaft of the shielding cover (11) at the inner wall of the rainwater collection box (9).

7. A cooling tower air duct as claimed in claim 1, characterized in that: The mounting angle irons (5) are symmetrically distributed with the air duct body (1) as the axis, the central area of ​​the rain shield cover (4) is higher than its edge area, one side edge of the rain shield cover (4) is located directly above the shielding cover (11), the diameter of the aluminum plate (16) is half of the inner diameter of the air duct body (1), and the aluminum plate (16) is located at the center of the air duct body (1).

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