Power station fireproof valve locking device

Abstract

The utility model discloses a power station fire damper locking device, which relates to the technical field of fire dampers, and comprises a smoke exhaust pipeline, a rotating rod is rotatably connected in the smoke exhaust pipeline, a fire damper is fixedly connected on the surface of the rotating rod, a locking assembly is arranged on the top surface of the smoke exhaust pipeline, a movable magnet is connected on the locking assembly, and the movable magnet is fixedly connected on the top surface of the smoke exhaust pipeline. The top surface of the smoke exhaust pipeline is fixedly connected with a protective shell, the protective shell is arranged on the locking assembly in a covering manner, the protective shell is sequentially divided into a bottom plate layer, a grid layer and a panel layer, the grid layer is filled with suspension liquid, superfine small magnetic particles are laid on the top surface of the bottom plate layer, and one end of each small magnetic particle is dyed with color; visual monitoring of the motion trail of the limiting block is achieved through the small magnetic particles and the suspension liquid, additional complex sensors and electronic equipment are not needed, the monitoring cost is reduced, the monitoring mode is simple and visual, operation and maintenance of workers are facilitated, and the device conforms to the development trend of power station equipment simplification.

Description

Technical Field

[0001] This utility model relates to the field of fire damper technology, specifically a fire damper locking device for power plants. Background Technology

[0002] In the operation and management of power plant equipment, monitoring the operational status of various devices is crucial, especially for critical equipment related to power plant safety, such as fire damper interlocking devices. Traditional power plant equipment operation status monitoring technologies often have many limitations in monitoring key parameters such as the movement trajectory of limit blocks.

[0003] However, existing fire damper interlocking devices in power plants have some drawbacks in practical use: most existing monitoring methods rely on additional complex sensors and electronic equipment. These sensors and electronic equipment not only require specialized design and installation, increasing the initial investment cost, but also require regular calibration and maintenance during subsequent use to ensure the accuracy and stability of their measurements. Once a sensor or electronic device malfunctions, the cost of repair and replacement is relatively high, which not only increases the operating costs of the power plant but may also lead to missing or inaccurate monitoring data, affecting the timely judgment and handling of equipment operating status.

[0004] To address this issue, we designed a fire damper interlocking device for power plants. Utility Model Content

[0005] The purpose of this utility model is to provide a fire damper interlocking device for power plants to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model provides a fire damper interlocking device for power plants, including a smoke exhaust pipe. A rotating rod is rotatably connected inside the smoke exhaust pipe, and a fire damper is fixedly connected to the surface of the rotating rod. An interlocking assembly is provided on the top surface of the smoke exhaust pipe, and a movable magnet is connected to the interlocking assembly. A protective shell is fixedly connected to the top surface of the smoke exhaust pipe, and the protective shell covers the interlocking assembly. The protective shell is divided into a base plate layer, a mesh layer, and a panel layer. The mesh layer is filled with a suspension liquid, and the top surface of the base plate layer is covered with extremely fine magnetic particles, one end of which is dyed.

[0007] Furthermore, the locking assembly includes a drive motor and a temperature control sensor. The drive motor is fixedly installed on the top surface of the exhaust duct, the temperature control sensor is fixedly installed on the top surface of the drive motor, and a toothed plate is fixedly connected to the drive end of the drive motor.

[0008] Furthermore, a limiting frame is fixedly connected to the top surface of the exhaust pipe, the toothed plate is slidably installed inside the limiting frame, a limiting block is fixedly connected to the end of the toothed plate away from the drive motor, and the toothed plate is engaged with a drive gear.

[0009] Furthermore, a connecting plate is fixedly connected to both the front and back of the exhaust pipe, and an installation groove is opened through the surface of the connecting plate. A fixed base plate is fixedly connected to the bottom of the inner cavity of the exhaust pipe, and limit strips are fixedly connected to both sides of the inner cavity of the exhaust pipe.

[0010] Furthermore, the rotating rod is rotatably mounted on the top surface of the fixed base plate, and the rotating rod is rotatably mounted through the top of the exhaust pipe.

[0011] Furthermore, the transmission gear is fixedly installed on the outer arc wall at the top of the rotating rod, and the magnet is fixedly installed on the top surface of the limiting block.

[0012] Furthermore, the grid layer is composed of hexagonal grids arranged in a honeycomb pattern.

[0013] Furthermore, the panel layer is made of transparent plastic.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. In this utility model, the movement trajectory of the limit block is visualized by using small magnetic particles and suspension, eliminating the need for additional complex sensors and electronic equipment, thus reducing monitoring costs. Moreover, the monitoring method is simple and intuitive, making it easy for staff to operate and maintain, which is in line with the development trend of simplifying power plant equipment.

[0016] 2. In this utility model, the toothed plate is connected to the drive end of the transmission motor and meshes with the transmission gear. The transmission gear drives the fireproof leaf valve to a suitable position through the rotating rod, which can realize the normal opening or closing state setting of the flue, effectively preventing the flame from spreading to other positions in the flue and ensuring the safe operation of the power station. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the external three-dimensional structure of the present invention;

[0018] Figure 2 This is a three-dimensional structural schematic diagram of the present invention in half-section view;

[0019] Figure 3 This is a three-dimensional structural schematic diagram of the protective shell of this utility model in half-section.

[0020] Figure 4 This is a schematic diagram of the external three-dimensional structure of the locking component of this utility model.

[0021] In the diagram: 1. Smoke exhaust duct; 2. Rotating rod; 3. Fireproof leaf valve; 4. Magnet; 5. Protective shell; 6. Base plate layer; 7. Grid layer; 8. Panel layer; 9. Drive motor; 10. Temperature sensor; 11. Toothed plate; 12. Limiting frame; 13. Limiting block; 14. Drive gear; 15. Connecting plate; 16. Mounting groove; 17. Fixed base plate; 18. Limiting strip. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-3 This utility model provides a technical solution: a fire damper interlocking device for a power station, including a smoke exhaust pipe 1, a rotating rod 2 rotatably connected inside the smoke exhaust pipe 1, a fire damper 3 fixedly connected to the surface of the rotating rod 2, an interlocking assembly provided on the top surface of the smoke exhaust pipe 1, a movable magnet 4 connected to the interlocking assembly, a protective shell 5 fixedly connected to the top surface of the smoke exhaust pipe 1, the protective shell 5 covering the interlocking assembly, the protective shell 5 being divided into a bottom plate layer 6, a mesh layer 7 and a panel layer 8 in sequence, the mesh layer 7 being filled with a suspension liquid, and the top surface of the bottom plate layer 6 being covered with extremely fine magnetic particles, one end of which is dyed.

[0024] In practice, when the magnet 4 is close to the bottom plate layer 6, the magnetic force of the magnet 4 affects the small magnetic particles set in the grid layer 7, so that the colored end of the small magnetic particles faces the panel layer 8. The color is displayed through the panel layer 8, which can indicate the position of the limiting block 13. The suspension filling the grid layer 7 can both affect the small magnetic particles with the magnet 4 and allow the small magnetic particles to resist gravity and remain on the surface for a period of time after the magnet 4 moves. In this way, the movement trajectory of the magnet 4 can be preserved, thereby reflecting the movement trajectory of the limiting block 13. Thus, the operation of the locking device can be judged by manual external observation, and corresponding actions can be taken.

[0025] See Figures 1-4 The locking assembly includes a drive motor 9 and a temperature control sensor 10. The drive motor 9 is fixedly installed on the top surface of the exhaust duct 1, and the temperature control sensor 10 is fixedly installed on the top surface of the drive motor 9. A toothed plate 11 is fixedly connected to the drive end of the drive motor 9. A limit frame 12 is fixedly connected to the top surface of the exhaust duct 1. The toothed plate 11 is slidably installed inside the limit frame 12. A limit block 13 is fixedly connected to the end of the toothed plate 11 away from the drive motor 9. A drive gear 14 is engaged with the toothed plate 11.

[0026] A connecting plate 15 is fixedly connected to both the front and back of the smoke exhaust pipe 1. An installation groove 16 is opened through the surface of the connecting plate 15. A fixed base plate 17 is fixedly connected to the bottom of the inner cavity of the smoke exhaust pipe 1. Limiting strips 18 are fixedly connected to both sides of the inner cavity of the smoke exhaust pipe 1. The rotating rod 2 is rotatably installed on the top surface of the fixed base plate 17 and is rotatably installed through the top of the smoke exhaust pipe 1. The transmission gear 14 is fixedly installed on the outer arc wall at the top of the rotating rod 2. The magnet 4 is fixedly installed on the top surface of the limiting block 13.

[0027] In the initial state, the toothed plate 11 is connected to the drive end of the transmission motor 9 and meshes with the transmission gear 14. A rotating rod 2 that passes through the top of the flue duct 1 is fixedly connected to the lower surface of the transmission gear 14, and a fireproof leaf valve 3 is fixedly connected to the surface of the rotating rod 2. This is used to close the flue and prevent the flame from spreading from the flue to other locations. When the temperature is too high and the fireproof leaf valve 3 needs to be closed automatically, the temperature control sensor 10 first senses that the temperature in the flue exceeds the threshold. The temperature control sensor 10 controls the transmission motor 9 to move the toothed plate 11. When the toothed plate 11 moves, it drives the transmission gear 14 meshing on its surface to rotate, thereby driving the fireproof leaf valve 3 to rotate through the rotating rod 2 fixedly connected to the bottom of the transmission gear 14 to close the flue.

[0028] See Figure 3 The mesh layer 7 is composed of hexagonal mesh arranged in a honeycomb pattern, which effectively enhances the overall structural strength of the protective shell 5. The panel layer 8 is made of transparent plastic, which is convenient for staff to observe.

[0029] Working principle:

[0030] In the initial state, the toothed plate 11 is connected to the drive end of the transmission motor 9 and meshes with the transmission gear 14. A rotating rod 2 that passes through the top of the flue duct 1 is fixedly connected to the lower surface of the transmission gear 14, and a fireproof leaf valve 3 is fixedly connected to the surface of the rotating rod 2. This is used to close the flue and prevent the flame from spreading from the flue to other locations. When the temperature is too high and the fireproof leaf valve 3 needs to be automatically closed, the temperature control sensor 10 first senses that the temperature in the flue exceeds the threshold. The temperature control sensor 10 controls the transmission motor 9 to move the toothed plate 11. When the toothed plate 11 moves, it drives the transmission gear 14 meshing on its surface to rotate, thereby driving the fireproof leaf valve 3 to rotate through the rotating rod 2 fixedly connected to the bottom of the transmission gear 14, until the fireproof leaf valve 3 abuts against the limit strip 18 to close the flue.

[0031] The protective shell 5 is divided into a bottom plate layer 6, a mesh layer 7, and a panel layer 8. The top surface of the bottom plate layer 6 is covered with extremely fine magnetic particles, one end of which is dyed. The mesh layer 7 is composed of a honeycomb-shaped hexagonal mesh, with the magnetic particles evenly distributed in the mesh. The panel layer 8 is located on the top. A magnet 4 is fixedly connected to the top surface of the limiting block 13. When the magnet 4 approaches the bottom plate layer 6, the magnetic force of the magnet 4 affects the magnetic particles in the mesh layer 7, causing the dyed end of the magnetic particles to face the panel layer 8. The color is then visible through the panel layer 8, indicating the position of the limiting block 13. The suspension filling the mesh layer 7 allows the magnetic particles to be affected by the magnet 4, and after the magnet 4 moves, the magnetic particles resist gravity and remain on the surface for a period of time. This preserves the movement trajectory of the magnet 4, thus reflecting the movement trajectory of the limiting block 13. By observing externally, the operation of the locking device can be determined and appropriate actions can be taken.

[0032] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A fire damper closure for a power station comprising a flue (1) characterised in that, The inside of the smoke exhaust duct (1) is rotatably connected with a rotating rod (2), the surface of the rotating rod (2) is fixedly connected with a fireproof leaf valve (3), the top surface of the smoke exhaust duct (1) is provided with a locking assembly, the locking assembly is connected with a movable magnet (4), the top surface of the smoke exhaust duct (1) is fixedly connected with a protective shell (5), the protective shell (5) covers the locking assembly, the protective shell (5) is sequentially divided into a bottom plate layer (6), a grid layer (7) and a panel layer (8), the grid layer (7) is filled with a suspension, the top surface of the bottom plate layer (6) is paved with extremely fine small magnetic particles, one end of the small magnetic particles is dyed with color.

2. A power station fire damper locking device as claimed in claim 1 wherein, The locking assembly comprises a transmission motor (9) and a temperature control sensor (10), the transmission motor (9) is fixedly installed on the top surface of the smoke exhaust duct (1), the temperature control sensor (10) is fixedly installed on the top surface of the transmission motor (9), and the driving end of the transmission motor (9) is fixedly connected with a toothed plate (11).

3. A power station fire damper locking device as claimed in claim 2, wherein, The top surface of the smoke exhaust duct (1) is fixedly connected with a limiting frame (12), the toothed plate (11) is slidingly installed in the inside of the limiting frame (12), one end of the toothed plate (11) away from the transmission motor (9) is fixedly connected with a limiting block (13), and the toothed plate (11) is engaged with a transmission gear (14).

4. A power station fire damper locking device as claimed in claim 3 wherein, The front and back surfaces of the smoke exhaust duct (1) are fixedly connected with a connecting plate (15), the surface of the connecting plate (15) is throughly provided with an installation groove (16), the inner cavity bottom of the smoke exhaust duct (1) is fixedly connected with a fixed bottom plate (17), and the inner cavity sides of the smoke exhaust duct (1) are fixedly connected with limiting strip plates (18).

5. A power station fire damper locking device as claimed in claim 4 wherein, The rotating rod (2) is rotatably installed on the top surface of the fixed bottom plate (17), and the rotating rod (2) is rotatably installed through the top of the smoke exhaust duct (1).

6. A power station fire damper locking device as claimed in claim 5 wherein, The transmission gear (14) is fixedly installed on the top end outer arc wall of the rotating rod (2), and the magnet (4) is fixedly installed on the top surface of the limiting block (13).

7. A power station fire damper locking device as claimed in claim 6 wherein, The grid layer (7) is composed of honeycomb-shaped hexagonal grids.

8. A power station fire damper locking device as claimed in claim 7, characterised in that, The material of the panel layer (8) is transparent plastic.

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