Hot air input structure of fog dispersal cooling tower

Abstract

The utility model discloses a hot air input structure of a fog dispersal cooling tower, which relates to the field of fog dispersal cooling towers and is characterized in that an air inlet filter screen is mounted at a front opening of a mounting shell, a cleaning brush is mounted on the inner surface of the air inlet filter screen, and an air inlet pipe is mounted behind the mounting shell; a fan fixing frame is mounted in the mounting shell, and a transmission connecting mechanism for rotating the first air inlet fan is mounted in the fan fixing frame. According to the hot air input structure of the fog dispersal cooling tower, the motor rotates to drive the third air inlet fan fixed in the front, the third air inlet fan drives the first air inlet fan rotationally installed in the rotary fixing frame through the conveying belt, and the first air inlet fan and the second air inlet fan are fixedly connected, so that the second air inlet fan rotates along with the first air inlet fan; and the action directions of the second air inlet fan, the first air inlet fan and the third air inlet fan are all aligned with the filter screen for output, so that the input area of hot air is enlarged, and the heat exchange efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of demisting cooling towers, in particular to a hot air input structure of a demisting cooling tower. Background Art

[0002] The cooling tower is one of the main structures of a thermal power plant. Among them, the natural ventilation indirect cooling tower is widely used in my country, especially in the water-scarce northwest region. The main structure includes a steel structure and steel plates covering the outer periphery of the steel structure.

[0003] In the existing technology, cooling circulating water enters the packing from top to bottom and exchanges heat with the air during the flow. Due to gravity, the falling speed of the cooled water droplets is accelerated, and the heat exchange process becomes shorter, resulting in affected heat exchange effect.

[0004] In order to overcome the above-mentioned defects, the prior art (application number: CN117704847A, Chinese patent with application date of 2023-12-18) discloses a cooling tower, comprising: a tower body; a packing part, arranged in the tower body, the packing part comprising a first packing layer and a second packing layer arranged up and down; a first water distribution part, arranged at the top of the tower body, distributing water to the first packing layer; and a second water distribution part, comprising a water distribution pan, the water distribution pan being arranged between the first packing layer and the second packing layer, and having a plurality of first water distribution holes on the water distribution pan, the water distribution pan being configured to collect water passing through the first packing layer, and distribute water to the second packing layer through the plurality of first water distribution holes. After the cooling circulating water flows down through the first packing layer at an accelerated speed, it is collected in the water distribution tray of the second water distribution component and its speed drops to zero; the cooling circulating water accumulated in the water distribution tray passes through the first water distribution hole, starts from a speed of zero, and flows down along the second packing layer again. Therefore, the falling speed of the cooling circulating water from the first packing layer to the second packing layer can be reduced, thereby extending the time for heat exchange between the cooling circulating water and the air and improving the heat exchange effect of the cooling tower.

[0005] Although the existing technology can solve the above problems, the design of hot air transmission is too simple, and hot air cannot be transmitted over a larger range, which reduces the heat exchange efficiency and cannot effectively perform heat exchange and condensation of water droplets. It also does not have a cleaning design when transmitting hot air. After long-term use, the interior of the mechanism will become dirty and even produce odor, affecting its use. Utility Model Content

[0006] The purpose of the present utility model is to provide a hot air input structure for a mist elimination cooling tower to solve the problem that the hot air transmission design proposed in the above-mentioned background technology is too simple, the hot air cannot be transmitted in a larger range, the heat exchange efficiency becomes low, and the heat exchange condensation of water droplets cannot be performed well. There is no cleaning design when the hot air is transmitted, and after long-term use, the internal structure will become dirty and even produce odor, affecting the use.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hot air input structure of a mist-eliminating cooling tower, comprising a mounting shell, an air inlet filter, a transmission fixing rod and a semicircular resistance rod, an air inlet filter is mounted at the front opening of the mounting shell, and a cleaning brush is mounted on the inner surface of the air inlet filter, and an air inlet pipe is mounted at the rear of the mounting shell, a fan fixing bracket is mounted inside the mounting shell, and a transmission connection mechanism for rotating a first inlet fan is mounted inside the fan fixing bracket, the transmission connection mechanism comprises a motor, and the motor is mounted inside the fan fixing bracket, a third inlet fan is mounted at the front end of the motor, and the third inlet fan A conveyor belt is installed on the surface of the three-inlet fan, and the rear of the fan fixing frame corresponds to the position of the air inlet duct, the first inlet fan is installed at the other end of the conveyor belt, and the second inlet fan is installed behind the first inlet fan, the first inlet fan and the second inlet fan are fixedly connected, and a rotating fixing frame is installed on the outer surface of the second inlet fan, the left and right ends of the rotating fixing frame are fixedly mounted on the inner surface of the mounting shell, and the first inlet fan and the second inlet fan are rotatably mounted inside the rotating fixing frame, the positions of the first inlet fan and the second inlet fan correspond to the positions of the air inlet duct, and the air inlet filter is located directly in front of the first inlet fan and the second inlet fan;

[0008] A semicircular resistance rod is installed in front of the second air inlet fan, and an elastic transmission mechanism for causing the cleaning brush to swing back and forth is installed outside the semicircular resistance rod.

[0009] Furthermore, the elastic transmission mechanism includes the transmission fixing rod, and the transmission fixing rod is fixedly connected to the rear of the cleaning brush. A spring is installed on the outer surface of the fixing rod, and a limiting rod is installed below the spring.

[0010] Furthermore, a sliding inner groove is opened on the surface of the limiting rod, and the fixing rod passes through the interior of the sliding inner groove, and the semicircular interference rod is fixedly connected to the ends of the second inlet fan and the third inlet fan respectively.

[0011] Furthermore, the third air intake fan contacts the outer surface of the first air intake fan through the inner surface of the conveyor belt to form a transmission structure, and the first air intake fan and the second air intake fan are integrally designed to rotate along the inner circumference of the rotating fixed frame.

[0012] Furthermore, the motor and the third inlet fan are designed as an integrated whole, and the front opening of the fan fixing bracket corresponds to the air inlet filter, and the rear end of the fan fixing bracket corresponds to the opening position of the air inlet duct.

[0013] Furthermore, the inner surface of the air inlet filter contacts the outer surface of the cleaning brush to form a sliding structure, and two groups of cleaning brushes are installed symmetrically about the center point of the air inlet filter, and the lower surface of the rotating fixing frame is fixedly installed on the outer surface of the fan fixing frame.

[0014] Furthermore, the inner surface of the concave contact rod contacts the outer surface of the semicircular abutment rod to form a sliding structure, and the outer surface of the transmission fixing rod contacts the inner surface of the sliding inner groove to form a sliding structure.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the hot air input structure of the mist dispelling cooling tower utilizes the rotation of the motor to drive the third air inlet fan fixed in the front, and the third air inlet fan drives the first air inlet fan installed inside the rotating fixed frame to rotate through the conveyor belt. Since the first air inlet fan and the second air inlet fan are fixedly connected, the second air inlet fan rotates together with it, and the action directions of the second air inlet fan, the first air inlet fan and the third air inlet fan are all aligned with the filter screen for output. Such a design expands the input area of ​​the hot air and improves the heat exchange efficiency.

[0016] Furthermore, when the third inlet fan rotates, the semicircular interference rod fixedly connected in the front rotates accordingly. During the rotation process, the semicircular interference rod contacts the inner surface of the concave contact rod and lifts it upward. Since the concave contact rod is fixedly connected to the cleaning brush, the cleaning brush drives the transmission fixing rods and springs installed on both sides of the rear to slide back and forth through the sliding inner groove. This design effectively cleans dust in the hot air.

[0017] Furthermore, two groups of cleaning brushes, transmission fixing rods and springs are installed symmetrically above and below the midline point of the air inlet filter, and the first air inlet fan and the second air inlet fan are of an integrated design and both rotate along the inner circumference of the rotating fixed frame. This design makes the air intake process more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the cleaning brush of the utility model;

[0019] Figure 2 This is a schematic diagram of the three-dimensional structure of the air inlet pipe of the utility model;

[0020] Figure 3 This is a schematic diagram of the three-dimensional structure of the fan fixing frame of the utility model;

[0021] Figure 4 This is a schematic diagram of the three-dimensional structure of the third fan inlet of the utility model;

[0022] Figure 5 This is a schematic diagram of the three-dimensional structure of the limit rod of the utility model;

[0023] Figure 6 It is a schematic diagram of the three-dimensional structure of the transmission fixing rod of the utility model.

[0024] In the figure: 1. Installation shell; 2. Air inlet filter; 3. Cleaning brush; 4. Air inlet duct; 5. First air inlet fan; 6. Motor; 7. Second air inlet fan; 8. Conveyor belt; 9. Rotating fixed frame; 10. Fan fixed frame; 11. Third air inlet fan; 12. Limit rod; 13. Concave contact rod; 14. Transmission fixed rod; 15. Spring; 16. Sliding inner groove; 17. Semicircular contact rod. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] Example 1: Please refer to Figure 1-6 The utility model provides the following technical solutions: a hot air input structure of a mist dispelling cooling tower, comprising a mounting shell 1, an air inlet filter 2, a concave contact rod 13, a transmission fixing rod 14 and a semicircular resistance rod 17.

[0027] An air inlet filter 2 is installed at the front opening of the mounting shell 1, and a cleaning brush 3 is installed on the inner surface of the air inlet filter 2, and an air inlet pipe 4 is installed at the rear of the mounting shell 1, a fan fixing frame 10 is installed inside the mounting shell 1, and a transmission connection mechanism for rotating the first air inlet fan 5 is installed inside the fan fixing frame 10, the transmission connection mechanism includes a motor 6, and the motor 6 is installed inside the fan fixing frame 10, a third air inlet fan 11 is installed at the front end of the motor 6, and a conveyor belt 8 is installed on the surface of the third air inlet fan 11, and the rear of the fan fixing frame 10 is connected to the air inlet pipe 4 Corresponding to the position of, a first intake fan 5 is installed at the other end of the conveyor belt 8, and a second intake fan 7 is installed behind the first intake fan 5, the first intake fan 5 and the second intake fan 7 are fixedly connected, and a rotating fixing frame 9 is installed on the outer surface of the second intake fan 7, the left and right ends of the rotating fixing frame 9 are fixedly mounted on the inner surface of the mounting shell 1, and the first intake fan 5 and the second intake fan 7 are rotatably mounted inside the rotating fixing frame 9, the positions of the first intake fan 5 and the second intake fan 7 correspond to the position of the air inlet pipe 4, and the air inlet filter 2 is located directly in front of the first intake fan 5 and the second intake fan 7;

[0028] A semicircular abutment rod 17 is installed in front of the second air inlet fan 7 , and an elastic transmission mechanism for causing the cleaning brush 3 to swing back and forth is installed outside the semicircular abutment rod 17 .

[0029] like Figure 2 、 Figure 3 、 Figure 4The technical solution shown is to solve the problem that the contact area of ​​the hot air entering the equipment is not large enough, resulting in a poor heat exchange process. The following is disclosed: the elastic transmission mechanism includes a transmission fixing rod 14, and the transmission fixing rod 14 is fixedly connected to the rear of the cleaning brush 3. A spring 15 is installed on the outer surface of the transmission fixing rod 14, and a limiting rod 12 is installed below the spring 15. A sliding inner groove 16 is opened on the surface of the limiting rod 12, and the transmission fixing rod 14 passes through the interior of the sliding inner groove 16. The semicircular interference rod 17 is fixedly connected to the ends of the second inlet fan 7 and the third inlet fan 11 respectively. The inner surface of the concave contact rod 13 contacts the outer surface of the semicircular interference rod 17 to form a sliding structure, and the outer surface of the transmission fixing rod 14 contacts the inner surface of the sliding inner groove 16 to form a sliding structure.

[0030] When hot air needs to be input, the motor 6 installed inside the fan fixing frame 10 is turned on. The rotation of the motor 6 drives the third air intake fan 11 fixedly connected to the front end of the motor 6 to rotate. The rotation of the third air intake fan 11 drives the surface-mounted conveyor belt 8 to rotate synchronously. The other end of the conveyor belt 8 is installed with the first air intake fan 5, and the first air intake fan 5 is rotatably installed inside the rotating fixing frame 9, so the first air intake fan 5 is driven to rotate by the motor 6 through the transmission of the conveyor belt 8. Since the first air intake fan 5 and the second air intake fan 7 are fixedly connected, the second air intake fan 7 rotates therewith. The rotating fixing frame 9 is fixed inside the mounting shell 1, and two groups of air intake ducts 4 are designed corresponding to the back of the first air intake fan 5 and the fan fixing frame 10 at the rear of the mounting shell 1.

[0031] like Figure 1 、 Figure 6 、 Figure 5 The technical solution shown, in order to solve the problem that a lot of dust will be brought in when hot air enters the interior of the equipment, discloses: the third intake fan 11 contacts the outer surface of the first intake fan 5 through the inner surface of the conveyor belt 8 to form a transmission structure, and the first intake fan 5 and the second intake fan 7 are designed as an integral whole and rotate along the inner circumference of the rotating fixed frame 9, the motor 6 and the third intake fan 11 are designed as an integral whole, and the front end opening of the fan fixed frame 10 corresponds to the air inlet filter 2, and the rear end of the fan fixed frame 10 corresponds to the opening position of the air inlet pipe 4, the inner surface of the air inlet filter 2 contacts the outer surface of the cleaning brush 3 to form a sliding structure, and the cleaning brush 3 is installed in two groups symmetrically about the center point of the air inlet filter 2, and the lower surface of the rotating fixed frame 9 is fixedly installed on the outer surface of the fan fixed frame 10.

[0032] When the motor 6 is started, the hot air passes through the first inlet fan 5 and the fan fixing bracket 10 and is output through the air inlet filter 2 opened in the front of the mounting shell 1. When the third inlet fan 11 rotates, it drives the semicircular resistance rod 17 fixedly connected at the front end to rotate synchronously. The rotation path of the semicircular resistance rod 17 contacts the inner surface of the concave contact rod 13 fixedly installed on the back of the cleaning brush 3. The concave contact rod 13 is lifted upward by the semicircular resistance rod 17, and at the same time drives the cleaning brush 3 to slide up and down along the inner surface of the air inlet filter 2. When the cleaning brush 3 slides, the transmission fixing rod 14 fixedly installed on the back of the cleaning brush 3 drives the spring 15 fixedly installed on the outer surface to move synchronously. The transmission fixing rod 14 passes through the limit rod 12 fixedly connected to the inside of the mounting shell 1. The position of the sliding inner groove 16 opened on the surface of the limit rod 12 corresponds to the moving position of the transmission fixing rod 14, and after the spring 15 contacts the limit rod 12, the cleaning brush 3 is continuously reset due to the elastic potential energy, thereby achieving a more efficient cleaning effect.

[0033] In the description of this utility model, it should be noted that, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0034] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A hot air input structure for a mist dissipation cooling tower, comprising a mounting housing (1), an air inlet filter (2), an indented contact rod (13), a transmission fixing rod (14), and a semicircular abutment rod (17); Its characteristics are: An air inlet filter (2) is installed at the front opening of the installation shell (1), and a cleaning brush (3) is installed on the inner surface of the air inlet filter (2), and an air inlet pipe (4) is installed at the rear of the installation shell (1), a fan fixing frame (10) is installed inside the installation shell (1), and a transmission connection mechanism for rotating the first air inlet fan (5) is installed inside the fan fixing frame (10), the transmission connection mechanism includes a motor (6), and the motor (6) is installed inside the fan fixing frame (10), a third air inlet fan (11) is installed at the front end of the motor (6), and a conveyor belt (8) is installed on the surface of the third air inlet fan (11), and the rear of the fan fixing frame (10) is connected to the air inlet pipe (4). The first air intake fan (5) is installed at the other end of the conveyor belt (8), and the second air intake fan (7) is installed behind the first air intake fan (5). The first air intake fan (5) and the second air intake fan (7) are fixedly connected, and a rotating fixed frame (9) is installed on the outer surface of the second air intake fan (7). The left and right ends of the rotating fixed frame (9) are fixedly installed on the inner surface of the mounting shell (1), and the first air intake fan (5) and the second air intake fan (7) are rotatably installed inside the rotating fixed frame (9). The positions of the first air intake fan (5) and the second air intake fan (7) correspond to the position of the air intake pipe (4), and the air intake filter (2) is located directly in front of the first air intake fan (5) and the second air intake fan (7); A semicircular abutment rod (17) is installed in front of the second air inlet fan (7), and an elastic transmission mechanism for causing the cleaning brush (3) to swing back and forth is installed outside the semicircular abutment rod (17).

2. The hot air input structure of the mist dispelling cooling tower according to claim 1, characterized in that: The elastic transmission mechanism comprises a transmission fixing rod (14), and the transmission fixing rod (14) is fixedly connected to the rear of the cleaning brush (3); a spring (15) is installed on the outer surface of the fixing rod (14), and a limiting rod (12) is installed below the spring (15).

3. The hot air input structure of the mist elimination cooling tower according to claim 2, characterized in that: The surface of the limiting rod (12) is provided with a sliding inner groove (16), and the fixing rod (14) passes through the interior of the sliding inner groove (16), and the semicircular abutting rod (17) is fixedly connected to the ends of the second inlet fan (7) and the third inlet fan (11) respectively.

4. The hot air input structure of the mist dispelling cooling tower according to claim 1, characterized in that: The third air intake fan (11) contacts the outer surface of the first air intake fan (5) through the inner surface of the conveyor belt (8) to form a transmission structure, and the first air intake fan (5) and the second air intake fan (7) are designed as an integral body and rotate along the inner circumference of the rotating fixed frame (9).

5. The hot air input structure of the mist elimination cooling tower according to claim 1, characterized in that: The motor (6) and the third air inlet fan (11) are designed as an integrated whole, and the front opening of the fan fixing frame (10) corresponds to the air inlet filter (2), and the rear end of the fan fixing frame (10) corresponds to the opening position of the air inlet pipe (4).

6. The hot air input structure of the mist elimination cooling tower according to claim 1, characterized in that: The inner surface of the air inlet filter (2) contacts the outer surface of the cleaning brush (3) to form a sliding structure, and two groups of cleaning brushes (3) are symmetrically installed above and below the center point of the air inlet filter (2), and the lower surface of the rotating fixing frame (9) is fixedly installed on the outer surface of the fan fixing frame (10).

7. The hot air input structure of the mist elimination cooling tower according to claim 3, characterized in that: The inner surface of the concave contact rod (13) contacts the outer surface of the semicircular abutment rod (17) to form a sliding structure, and the outer surface of the transmission fixing rod (14) contacts the inner surface of the sliding inner groove (16) to form a sliding structure.

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