Ventilation screen structure of marine generator

Abstract

The utility model relates to marine generator technology field, concretely is a kind of marine generator ventilation filter screen structure, including air inlet cover and exhaust hood, air inlet cover and exhaust hood are located respectively in the air inlet and air outlet position of generator, for protecting generator to avoid foreign matter and seawater to enter, air inlet cover and exhaust hood structure are same, the right side opening of air inlet cover is equipped with movable louver fan, the inside intermediate fixed connection of air inlet cover is equipped with fixed louver fan, filter frame is equipped between movable louver fan and fixed louver fan, movable louver fan, fixed louver fan and filter frame three mutually cooperate for blocking foreign matter, foreign matter filter screen is equipped in filter frame, the upper end of filter frame is fixedly connected with air inlet cover by buckle or bolt, the right side inner wall of air inlet cover vertically slides control board, the utility model can close the air inlet and air outlet of generator when the pipeline of boat is damaged, and avoid foreign matter to enter when routine operation.

Description

Technical Field

[0001] This utility model relates to the field of marine generator technology, specifically a ventilation filter structure for a marine generator. Background Technology

[0002] During long-term voyages, using a shaft-driven generator to supply power to the entire ship's electrical grid offers significant economic benefits, including substantial savings in fuel consumption. However, under high-power conditions, improper air filter design can severely impact the failure rate and lifespan of the shaft-driven generator. For example, poor ventilation can lead to inadequate heat dissipation, foreign objects can be drawn in, damaging internal components, and seawater infiltration can cause short circuits and insulation failure in the internal windings. Damage to the shaft-driven generator can result in a complete power outage and even pose a safety hazard to navigation. Currently, the air filter design for shaft-driven generators is simplistic, merely consisting of a single sheet of iron with evenly distributed punched ventilation holes. Utility Model Content

[0003] The purpose of this utility model is to provide a ventilation filter structure for marine generators to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a ventilation filter structure for a marine generator, comprising an air inlet hood and an air outlet hood, wherein the air inlet hood and the air outlet hood are respectively located at the air inlet and exhaust outlet of the generator, for protecting the generator from foreign objects and seawater entering. The air inlet hood and the air outlet hood have the same structure. A movable louver is provided at the right opening of the air inlet hood, and a fixed louver is fixedly connected to the inside of the air inlet hood. A filter frame is provided between the movable louver and the fixed louver. The movable louver, the fixed louver, and the filter frame are connected in a coordinated manner. The filter frames are designed to block foreign objects. A foreign object filter screen is located in the middle of the filter frame. The upper end of the filter frame is fixedly connected to the air inlet hood via clips or bolts. A control plate slides vertically on the inner right side of the air inlet hood. A support plate for controlling the rotation and opening / closing of the movable louver is fixedly connected to the lower end of the control plate. A drain hole is located at the lower end of the air inlet hood. A water level sensor is fixedly connected to the inner side wall of the air inlet hood. A drive plate is fixedly connected to the lower end of the support plate. A movable plate for sealing the drain hole is slidably connected to the inner side wall of the air inlet hood.

[0005] Preferably, the upper half of the filter frame has a T-shaped structure, and the filter frame is inserted from the upper end of the air inlet hood to the middle of the air inlet hood.

[0006] Preferably, a support column is fixedly connected to the air inlet of the air inlet hood, the movable louver rotates around the support column, and a snap-fit ​​connector is fixedly connected to the top of the movable louver.

[0007] Preferably, the top of the snap-fit ​​connector is a spherical structure, an auxiliary block is fixedly connected to the side of the control plate, the top of the snap-fit ​​connector is embedded in the auxiliary block, and the two can rotate relative to each other.

[0008] Preferably, a mounting platform is fixedly connected to the lower inner side wall of the air inlet hood, and a miniature electric actuator is fixedly connected to the mounting platform. The power output end of the miniature electric actuator is fixedly connected to the lifting plate.

[0009] Preferably, both the moving plate and the driving plate are L-shaped structures. Both the moving plate and the driving plate have multiple meshing teeth on the side near the connecting gear, and the connecting gear meshes with the meshing teeth. A sealing plug is fixedly connected to the lower end of the moving plate, and the lower end of the sealing plug is directly opposite the drain hole.

[0010] Preferably, a mounting frame is fixedly connected to the left side of the air inlet hood, and the mounting frame is fixedly connected to the generator by bolts. The inner walls of the air inlet hood and the air outlet hood are equipped with ventilation volume pressure sensors and generator speed sensors.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: a fixed louver is installed on the innermost side closest to the generator body, and a movable louver that can be opened or closed is installed on the side away from the generator body. A generator speed sensor is installed at the input shaft of the shaft-driven generator to realize automatic control of the opening and closing of the louver. When the generator speed sensor detects that the shaft-driven generator is running, the movable louver is opened; when the shaft-driven generator stops running, the movable louver is closed, automatically controlling the opening or closing of the movable louver. The movable louver, the fixed louver, and the filter frame work together to block foreign objects. When the ventilation volume pressure sensor in the air inlet and exhaust hood detects insufficient pressure difference between the air inlet and outlet, it connects to an alarm to realize the alarm function, reminding people to check and remove foreign objects from the filter or replace the filter. When the pipeline is damaged, the water level sensor can enter the water level in the air inlet hood to detect the water level, thereby controlling the generator to stop working and closing the movable louver. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the internal connections of the air inlet shroud.

[0013] Figure 2 This is a schematic diagram showing the connection between the miniature electric actuator and the control plate.

[0014] Figure 3 This is a schematic diagram of the three-dimensional connection between the mobile board and the driver board.

[0015] Figure 4 A schematic diagram of the three-dimensional connection of the movable louvered fan.

[0016] In the diagram: 1. Air inlet hood, 2. Mounting frame, 3. Movable louvered fan, 4. Fixed louvered fan, 5. Filter frame, 6. Control panel, 7. Ventilation volume pressure sensor, 8. Water level sensor, 9. Drain hole, 10. Support plate, 11. Mounting platform, 12. Miniature electric actuator, 13. Drive board, 14. Moving plate, 15. Sealing plug, 16. Connecting gear, 17. Snap connector, 18. Support column, 19. Auxiliary block, 20. Generator speed sensor. Detailed Implementation

[0017] To enhance understanding of this utility model, the technical solutions in the embodiments of this utility model will be clearly and completely described and introduced below with reference to the accompanying drawings. Obviously, the described embodiments are merely some embodiments of this utility model, not all embodiments, and are not intended to limit the embodiments in any way. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0018] Please see Figure 1-4 This utility model provides a technical solution: a ventilation filter structure for a marine generator, including an air inlet hood 1 and an air outlet hood. The air inlet hood 1 and the air outlet hood are located at the air inlet and exhaust outlet of the generator, respectively, to protect the generator from foreign objects and seawater entering. The air inlet hood 1 and the air outlet hood have the same structure. A movable louvered fan 3 is provided at the right opening of the air inlet hood 1. A fixed louvered fan 4 is fixedly connected to the inside of the air inlet hood 1. A filter frame 5 is provided between the movable louvered fan 3 and the fixed louvered fan 4. The movable louvered fan 3, the fixed louvered fan 4, and the filter frame 5 cooperate with each other to block foreign objects. A foreign object filter screen is provided in the middle of the filter frame 5. The upper end of the filter frame 5 is fixedly connected to the air inlet hood 1 by a buckle or bolt. A control plate 6 is vertically slidable on the right inner wall of the air inlet hood 1. The lower end of the control plate 6 is fixedly connected to a device for controlling the movable louvered fan 3. The fan blades 3 rotate to open or close the support plate 10. The lower end of the air inlet shroud 1 is provided with a drain hole 9. A water level sensor 8 is fixedly connected to the inner wall of the air inlet shroud 1. A drive plate 13 is fixedly connected to the lower end of the support plate 10. A movable plate 14 for sealing the drain hole 9 is slidably connected to the inner wall of the air inlet shroud 1. A mounting frame 2 is fixedly connected to the left side of the air inlet shroud 1. The mounting frame 2 is fixedly connected to the generator by bolts. A ventilation volume pressure sensor 7 and a generator speed sensor 20 are provided on the inner walls of both the air inlet shroud 1 and the exhaust shroud. A controller is set inside the shaft-driven generator and is connected to the micro electric actuator 12, the water level sensor 8, the ventilation volume pressure sensor 7, and the generator speed sensor 20. When the generator speed sensor 20 detects that the shaft-driven generator is running or stopped, it can control the micro electric actuator 12 to open or close the movable louver.

[0019] The upper part of the filter frame 5 has a T-shaped structure. The filter frame 5 is inserted from the upper end of the air inlet hood 1 to the middle of the air inlet hood 1. The filter frame 5 has a detachable structure, which makes it easy to replace the filter frame 5 and clean the attached dust.

[0020] A support column 18 is fixedly connected to the air inlet of the air inlet hood 1. The movable louver fan 3 rotates around the support column 18. A snap-fit ​​connector 17 is fixedly connected to the top of the movable louver fan 3. The top of the snap-fit ​​connector 17 has a spherical structure. An auxiliary block 19 is fixedly connected to the side of the control plate 6. The top of the snap-fit ​​connector 17 is embedded in the auxiliary block 19, and the two can rotate relative to each other. When the control plate 6 is pushed upward by the miniature electric push rod 12, the auxiliary block 19 pushes the snap-fit ​​connector 17 and the movable louver fan 3 to rotate around the support column 18, thereby opening the air inlet hood 1 and the exhaust hood.

[0021] An installation platform 11 is fixedly connected to the lower inner side wall of the air inlet shroud 1. A miniature electric actuator 12 is fixedly connected to the installation platform 11. The power output end of the miniature electric actuator 12 is fixedly connected to the support plate 10. The installation platform 11 can increase the installation height of the miniature electric actuator 12 and prevent water from entering the air inlet shroud 1, which would damage the miniature electric actuator 12.

[0022] Both the movable plate 14 and the drive plate 13 have an L-shaped structure. Both the movable plate 14 and the drive plate 13 have multiple meshing teeth on the side near the connecting gear 16, and the connecting gear 16 meshes with the meshing teeth. The lower end of the movable plate 14 is fixedly connected to a sealing plug 15, and the lower end of the sealing plug 15 is directly opposite the drain hole 9. The drain hole can discharge the incoming water. When the water level sensor 8 detects that the water level is high, the movable louver closes, thereby closing and sealing the air intake hood 1 and the exhaust hood, thus protecting the generator. At this time, the control plate 6 and the drive plate 13 move upward together, and through the meshing transmission of the connecting gear 16, the movable plate 14 and the sealing plug 15 move downward. The sealing plug 15 seals the drain hole 9, thereby preventing water from entering from the drain hole 9 and protecting the safety of the generator.

[0023] Although embodiments of the present invention have been shown and described, it should be emphasized that the above description is merely an introduction and description of the usage of the embodiments of the present invention, and is not intended to limit the present invention in any way. Those skilled in the art will understand that various changes, modifications, substitutions, and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A ventilation filter structure for a marine generator, comprising an air inlet hood (1) and an exhaust hood, characterized in that: The air intake hood (1) and the air exhaust hood are located at the air intake and exhaust ports of the generator, respectively, to protect the generator from foreign objects and seawater. The air intake hood (1) and the air exhaust hood have the same structure. The air intake hood (1) has a movable louver (3) at the right opening. The air intake hood (1) has a fixed louver (4) fixedly connected in the middle of its interior. A filter frame (5) is provided between the movable louver (3) and the fixed louver (4). The movable louver (3), the fixed louver (4) and the filter frame (5) work together to block foreign objects. The filter frame (5) has a foreign object filter screen in the middle. The upper end of the filter frame (5) is fixedly connected to the air inlet cover (1) by buckle or bolt. A control plate (6) is vertically slidable on the inner wall of the right side of the air inlet hood (1). A support plate (10) for controlling the rotation and opening or closing of the movable louver fan (3) is fixedly connected to the lower end of the control plate (6). The lower end of the air inlet hood (1) is provided with a drain hole (9), a water level sensor (8) is fixedly connected to the inner wall of the air inlet hood (1), a drive plate (13) is fixedly connected to the lower end of the support plate (10), and a movable plate (14) for sealing the drain hole (9) is slidably connected to the inner wall of the air inlet hood (1).

2. The ventilation filter structure for a marine generator according to claim 1, characterized in that: The upper part of the filter frame (5) is a T-shaped structure, and the filter frame (5) is inserted from the upper end of the air inlet hood (1) to the middle of the air inlet hood (1).

3. The ventilation filter structure for a marine generator according to claim 1, characterized in that: The air inlet of the air inlet cover (1) is fixedly connected to a support column (18), the movable louver fan (3) rotates around the support column (18), and the top of the movable louver fan (3) is fixedly connected to a snap connector (17).

4. The ventilation filter structure for a marine generator according to claim 3, characterized in that: The top of the snap connector (17) is a spherical structure, and an auxiliary block (19) is fixedly connected to the side end of the control plate (6). The top of the snap connector (17) is embedded in the auxiliary block (19), and the two can rotate relative to each other.

5. The ventilation filter structure for a marine generator according to claim 1, characterized in that: An installation platform (11) is fixedly connected to the lower inner side wall of the air inlet hood (1), and a miniature electric actuator (12) is fixedly connected to the installation platform (11). The power output end of the miniature electric actuator (12) is fixedly connected to the lifting plate (10).

6. The ventilation filter structure for a marine generator according to claim 1, characterized in that: Both the movable plate (14) and the drive plate (13) are L-shaped structures. Both the movable plate (14) and the drive plate (13) have multiple meshing teeth on the side near the connecting gear (16), and the connecting gear (16) meshes with the meshing teeth. The lower end of the movable plate (14) is fixedly connected to a sealing plug (15), and the lower end of the sealing plug (15) is directly opposite the drain hole (9).

7. The ventilation filter structure for a marine generator according to claim 1, characterized in that: An installation frame (2) is fixedly connected to the left side of the air inlet hood (1). The installation frame (2) is fixedly connected to the generator by bolts. A ventilation volume pressure sensor (7) and a generator speed sensor (20) are provided on the inner walls of the air inlet hood (1) and the exhaust hood.

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