Mechanical ventilation cooling tower

Abstract

The utility model provides a mechanical draft cooling tower, which relates to the technical field of cooling towers and comprises a cooling tower body, an air inlet filter is fixedly connected outside an air inlet of the cooling tower body, and a protective screen plate is mounted in front of the inside of the air inlet filter. The lower edge of the protective screen plate is hinged to the bottom of the interior of the air inlet filter through supporting shafts on the two sides, a driving motor is installed on the right surface of the air inlet filter through bolts, and after the cooling tower stops running, the protective screen plate shakes under the cooperation of the driving motor and a vibration rotating disc; impurities attached to the surface of the protective net plate can fall off under the shaking action of the protective net plate, so that the problem that the cooling efficiency of the cooling tower is influenced by air permeability reduction caused by the fact that the impurities block the protective net plate is avoided, efficient cleaning of the cooling tower is facilitated, and the problems that after a traditional protective net intercepts the impurities, part of the impurities are attached to the protective net and cannot fall off, and the cooling efficiency of the cooling tower is affected are solved. The air permeability of the protective net is reduced, the power consumption of the cooling tower is increased, and the cooling efficiency of the cooling tower is reduced.

Description

Technical Field

[0001] This utility model relates to the field of cooling tower technology, and in particular to a mechanical ventilation cooling tower. Background Technology

[0002] Mechanical draft cooling towers are devices that use forced airflow via fans to cool water. They mainly consist of fans, tower bodies, packing, and water collectors. Their working principle involves spraying hot water onto the packing layer, and using fans to drive air to contact the water in the opposite or lateral direction. Heat is transferred away through evaporation and convection, thus lowering the water temperature. Compared to natural draft cooling towers, they have advantages such as high cooling efficiency, small footprint, and stable operation. However, they require electricity to drive the fans. They are widely used in industrial fields such as petroleum, chemical, and metallurgy, as well as in central air conditioning systems of commercial buildings.

[0003] Traditional ventilation cooling towers draw outside air into the tower via an internal fan during operation. To prevent impurities in the outside air from entering the tower and clogging its internal structure, a protective net is installed at the air inlet to intercept some of the impurities. However, after the traditional protective net intercepts the impurities, some of them remain attached to the net and cannot fall off, reducing the net's permeability, increasing the tower's power consumption, and decreasing its cooling efficiency. Utility Model Content

[0004] This invention provides a mechanical ventilation cooling tower to solve the problem that after traditional protective nets intercept impurities, some impurities will adhere to the protective nets and cannot fall off, resulting in reduced air permeability of the protective nets, increased power consumption of the cooling tower, and reduced cooling efficiency.

[0005] This utility model provides a mechanical ventilation cooling tower, specifically comprising: a cooling tower body; an air inlet filter fixedly connected to the air inlet of the cooling tower body; a protective mesh plate installed at the front of the air inlet filter; the lower edge of the protective mesh plate being hinged to the bottom of the air inlet filter via two side support shafts; a drive motor bolted to the right surface of the air inlet filter; a drive pulley fixedly connected to the shaft of the drive motor; a vibrating disc rotatably connected to the right surface of the air inlet filter; a driven pulley fixedly connected to the shaft of the vibrating disc; and the drive motor forming a drive pulley with the driven pulley. The belt drive drives the vibratory swivel to rotate. The vibratory swivel includes two outer end plates and one inner plate. The two outer end plates are fixedly connected to the front and rear surfaces of the inner plate. A roller assembly groove is provided on the outer circular surface of the inner plate. An oscillating pusher is provided in the roller assembly groove. The two ends of the oscillating pusher are rotatably connected to the two outer end plates respectively. The bottom support shaft of the protective mesh plate is fixedly connected to the two ends of the mesh plate swing rod. The mesh plate swing rod is set vertically upward and parallel to the protective mesh plate. The mesh plate swing rod is in contact with the outer circular surface of the inner plate. A swing rod return spring is fixedly connected to the upper end of the mesh plate swing rod.

[0006] Furthermore, a side sealing cover is fixedly connected to the left and right sides of the air inlet filter.

[0007] Furthermore, the front of the filter cover is provided with an arc-shaped cover edge.

[0008] Furthermore, a limit stop strip is fixedly connected to the rear edge of the lower surface of the cover plate arc edge.

[0009] Furthermore, the front of the limiting strip is attached to the upper edge of the rear surface of the protective mesh plate, and the lower surface of the cover plate arc edge is slidably connected to the upper edge of the protective mesh plate.

[0010] Furthermore, a side connecting plate is fixedly connected to the upper end of the swing arm reset spring, and the side connecting plate is fixedly connected to both sides of the air inlet filter.

[0011] Furthermore, the side sealing cover is a U-shaped frame structure, with sealing cover grooves provided at the top and bottom inside the side sealing cover, and a sealing pull plate provided outside the side sealing cover, with the upper and lower edges of the sealing pull plate tightly slidably connected to the sealing cover grooves.

[0012] This utility model provides a mechanical ventilation cooling tower, which has the following beneficial effects:

[0013] In this invention, a protective mesh plate is installed at the air inlet of the cooling tower via an air inlet filter. Under normal conditions, the protective mesh plate is kept perpendicular to the bottom surface by the tension of the swing arm return spring, covering the inside of the air inlet filter opening. A limit bar limits the upper edge of the protective mesh plate to prevent it from tilting inward under the airflow after the cooling tower is turned on. A vibration drive mechanism for the protective mesh plate is also provided. When the cooling tower stops operating, the protective mesh plate vibrates in cooperation with the drive motor and the vibrating disc. The vibration of the protective mesh plate causes impurities attached to its surface to fall off, thereby preventing impurities from clogging the protective mesh plate and reducing its air permeability, which would affect the cooling efficiency of the cooling tower. This facilitates efficient cleaning of the cooling tower.

[0014] In addition, a protective structure consisting of a side sealing cover and a sealing pull plate is provided on the side of the air inlet filter. This structure can prevent external dust or impurities from contacting the drive motor, vibrating disc, and transmission components, thereby reducing the failure rate of the equipment. The movable sealing pull plate can be removed for easy cleaning and maintenance of the internal facilities. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings of the embodiments will be briefly described below.

[0016] The accompanying drawings described below are only related to some embodiments of the present invention and are not intended to limit the scope of the present invention.

[0017] In the attached diagram:

[0018] Figure 1 A schematic diagram of the overall structure of this application is shown;

[0019] Figure 2 A schematic diagram of the structure of the air inlet filter of this application is shown;

[0020] Figure 3 This diagram shows the structure of the air inlet filter and filter cover when separated.

[0021] Figure 4 This application shows Figure 3 A schematic diagram of the bottom structure;

[0022] Figure 5 A schematic diagram of the structure of the protective mesh panel of this application is shown;

[0023] Figure 6 A schematic diagram of the structure of the vibrating rotary disk of this application is shown.

[0024] Figure label:

[0025] 1. Cooling tower body; 2. Inlet air filter; 201. Filter cover; 202. Cover flange; 203. Limiting strip; 204. Side connecting plate; 3. Side sealing cover; 301. Sealing cover groove; 302. Sealing pull plate; 4. Protective mesh plate; 401. Mesh plate swing rod; 402. Swing rod return spring; 5. Drive motor; 501. Drive pulley; 6. Vibrating disc; 601. Disc inner plate; 602. Outer end plate; 603. Drum assembly groove; 604. Vibrating pusher; 605. Driven pulley. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the described embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0027] Example 1: Please refer to Figures 1 to 6 :

[0028] This utility model proposes a mechanical ventilation cooling tower, comprising: a cooling tower body 1; an air inlet filter 2 fixedly connected to the air inlet of the cooling tower body 1; a protective mesh plate 4 installed at the front of the air inlet filter 2; the lower edge of the protective mesh plate 4 hinged to the bottom of the air inlet filter 2 via two side support shafts; a drive motor 5 bolted to the right surface of the air inlet filter 2; a drive pulley 501 fixedly connected to the shaft of the drive motor 5; a vibrating disc 6 rotatably connected to the right surface of the air inlet filter 2; a driven pulley 605 fixedly connected to the shaft of the vibrating disc 6; and the drive motor 5 being connected to the driven pulley 605 via the drive pulley 501. 5 forms a belt-driven vibrating disc 6 that rotates. The vibrating disc 6 includes two outer end plates 602 and an inner disc 601. The two outer end plates 602 are fixedly connected to the front and rear surfaces of the inner disc 601. A roller assembly groove 603 is provided on the outer circumference of the inner disc 601. An oscillating pusher 604 is provided in the roller assembly groove 603. The two ends of the oscillating pusher 604 are rotatably connected to the two outer end plates 602 respectively. The bottom support shaft of the protective mesh plate 4 is fixedly connected to the two ends of the mesh plate swing rod 401. The mesh plate swing rod 401 is set vertically upward and parallel to the protective mesh plate 4. The mesh plate swing rod 401 is parallel to the inner disc 601. 1. The outer circular surface is fitted together, and the upper end of the swing arm 401 of the mesh plate is fixedly connected to the swing arm return spring 402. Under normal conditions, the protective mesh plate 4 is kept perpendicular to the bottom surface by the tension of the swing arm return spring 402, covering the inside of the opening of the air inlet filter 2. The upper edge of the protective mesh plate 4 is limited by the limit bar 203 to prevent the protective mesh plate 4 from tilting inward under the action of airflow after the cooling tower is turned on. The air entering the cooling tower body 1 is filtered by the protective mesh plate 4, so that large-volume impurities in the air cannot enter the interior of the cooling tower body 1, ensuring the operational stability of the cooling tower. When the cooling tower stops operating, the drive motor 5 is started to drive the cooling tower. Motor 5 drives the vibrating disc 6 to rotate via belt drive formed by the driving pulley 501 and the driven pulley 605. The oscillating pusher 604 rotates around the axis of the vibrating disc 6. When rotating, the oscillating pusher 604 contacts and collides with the screen plate swing rod 401, pushing the screen plate swing rod 401 forward and stretching the swing rod return spring 402. At the same time, the protective screen plate 4 tilts forward and shakes. Then, the screen plate swing rod 401 returns to its original position under the pull of the swing rod return spring 402, causing the protective screen plate 4 to shake regularly, which removes impurities such as fallen leaves, paper scraps, and plastic bags attached to the outside of the protective screen plate 4, thus achieving automatic cleaning of the protective screen plate 4.

[0029] In this embodiment of the present disclosure, the front of the filter cover 201 is provided with an arc-shaped cover edge 202. The rear edge of the lower surface of the cover edge 202 is fixedly connected to a limiting strip 203. The front of the limiting strip 203 is attached to the upper edge of the rear surface of the protective mesh plate 4. The lower surface of the cover edge 202 is slidably connected to the upper edge of the protective mesh plate 4. With this structure, the protective mesh plate 4 can maintain the seal on the opening of the air inlet filter 2 while shaking, preventing impurities from falling into the interior through the gaps.

[0030] In this embodiment, a side connecting plate 204 is fixedly connected to the upper end of the swing arm reset spring 402. The side connecting plate 204 is fixedly connected to both sides of the air inlet filter 2. The side connecting plate 204 and the swing arm reset spring 402 cooperate to position the mesh plate swing arm 401, limit the angle of the protective mesh plate 4, and ensure that the protective mesh plate 4 can be reset during the shaking process.

[0031] In Example 2, based on Example 1, a side sealing cover 3 is fixedly connected to the left and right sides of the air inlet filter 2. The side sealing cover 3 is a U-shaped frame. Sealing cover grooves 301 are provided at the top and bottom inside the side sealing cover 3. A sealing pull plate 302 is provided outside the side sealing cover 3. The upper and lower edges of the sealing pull plate 302 are tightly slidably connected to the sealing cover grooves 301. The side sealing cover 3 surrounds the drive motor 5, the vibrating disc 6, and the mesh plate swing rod 401 to prevent them from coming into contact with impurities in the outside air and causing blockage. At the same time, the sealing pull plate 302 can be pulled out from the side of the side sealing cover 3 to facilitate cleaning, lubrication and maintenance of the internal facilities.

[0032] The working principle of this embodiment is as follows: First, under normal conditions, the protective mesh plate 4 is kept perpendicular to the bottom surface by the tension of the swing arm return spring 402, covering the inside of the opening of the air inlet filter 2. The upper edge of the protective mesh plate 4 is limited by the limiting strip 203 to prevent the protective mesh plate 4 from tilting inward under the action of airflow after the cooling tower is turned on. The air entering the cooling tower body 1 is filtered by the protective mesh plate 4, so that large-volume impurities in the air cannot enter the interior of the cooling tower body 1, ensuring the operational stability of the cooling tower. When the cooling tower stops operating, the drive motor 5 is started. The drive motor 5 drives the vibrating disc 6 to rotate through the belt drive formed by the active pulley 501 and the driven pulley 605, and the oscillating pusher 604 vibrates. The rotating disc 6 rotates around its axis. When the oscillating pusher 604 rotates, it contacts and collides with the screen plate swing arm 401, pushing the screen plate swing arm 401 forward and stretching the swing arm return spring 402. At the same time, the protective screen plate 4 tilts forward and shakes. Then, the screen plate swing arm 401 returns to its original position under the pull of the swing arm return spring 402, causing the protective screen plate 4 to shake regularly. This causes the fallen leaves, paper scraps, plastic bags and other impurities attached to the protective screen plate 4 to fall off, achieving automatic cleaning of the protective screen plate 4. The drive motor 5 can be automatically turned off by remote wireless control or a timer. After cleaning is completed, the drive motor 5 is turned off, and the protective screen plate 4 returns to its original position under the pull of the screen plate swing arm 401 and the swing arm return spring 402.

[0033] The following points should be noted in this article:

[0034] 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in general design.

[0035] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0036] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A mechanically ventilated cooling tower comprising: Cooling tower body (l), characterized in that the air inlet of the cooling tower body (l) is fixedly connected with an air inlet filter (2), a protective mesh plate (4) is installed at the front of the air inlet filter (2), the lower edge of the protective mesh plate (4) is hinged to the bottom inside the air inlet filter (2) through two side shafts, a driving motor (5) is installed on the right surface of the air inlet filter (2) through bolts, the driving motor (5) is fixedly connected with a driving pulley (501), a vibrating rotary disc (6) is rotatably connected to the right surface of the air inlet filter (2), the shaft body of the vibrating rotary disc (6) is fixedly connected with a driven pulley (605), the driving motor (5) drives the vibrating rotary disc (6) to rotate through the belt drive formed by the driving pulley (501) and the driven pulley (605), the vibrating rotary disc (6) comprises two outer end plates (602) and a rotary disc inner plate (601), the two outer end plates (602) are fixedly connected to the front surface and the rear surface of the rotary disc inner plate (601), a roller assembly groove (603) is formed on the outer circular surface of the rotary disc inner plate (601), an oscillating push cylinder (604) is arranged in the roller assembly groove (603), the two ends of the oscillating push cylinder (604) are rotatably connected to the two outer end plates (602), a mesh plate swing rod (401) is fixedly connected to the two ends of the bottom shaft of the protective mesh plate (4), the mesh plate swing rod (401) is vertically upward, the mesh plate swing rod (401) is parallel to the protective mesh plate (4), the mesh plate swing rod (401) is attached to the outer circular surface of the rotary disc inner plate (601), and the upper end of the mesh plate swing rod (401) is fixedly connected with a swing rod reset tension spring (402); further comprising a filter cover plate (201), an arc-shaped cover plate arc edge (202) is arranged at the front of the filter cover plate (201).

2. A mechanical-draft cooling tower as set forth in claim 1 wherein, The left side and the right side of the air inlet filter (2) are fixedly connected with a side edge sealing cover (3) respectively.

3. A mechanical-draft cooling tower according to claim 1 wherein, The lower surface of the cover plate arc edge (202) is fixedly connected with a limiting stop strip (203) at the rear edge.

4. A mechanical-draft cooling tower according to claim 3 wherein, The front of the limiting stop strip (203) is attached to the upper edge of the rear surface of the protective mesh plate (4), and the lower surface of the cover plate arc edge (202) is slidingly connected with the upper edge of the protective mesh plate (4).

5. A mechanical-draft cooling tower according to claim 1 wherein, The upper end of the swing rod reset tension spring (402) is fixedly connected with a side edge connecting plate (204), and the side edge connecting plate (204) is fixedly connected to the two side surfaces of the air inlet filter (2).

6. A mechanically ventilated cooling tower according to claim 2, wherein The side edge sealing cover (3) is a "U"-shaped frame, sealing cover sliding grooves (301) are formed in the upper part and the lower part of the inside of the side edge sealing cover (3), and a sealing pull plate (302) is arranged outside the side edge sealing cover (3), the upper edge and the lower edge of the sealing pull plate (302) are slidingly connected with the sealing cover sliding grooves (301).

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