Fire detection system and detection method for hydropower station

Abstract

The invention discloses a fire detection system for a hydropower station, which comprises a bottom plate and is characterized in that a smoke generator and a fire maker are fixed on the bottom plate, the smoke generator is used for generating smoke, and the fire maker is used for generating flames; and a lifting mechanism is arranged on the bottom plate. The invention relates to the technical field of hydropower station fire detection equipment, in particular to a fire detection system and method for a hydropower station, and the fire detection system integrates a smoke generator, a fire maker, a lifting mechanism, a fire detection assembly, a controller, an angle adjustment assembly and a smoke extraction assembly. The temperature and smoke concentration are monitored in real time, the fire detection accuracy and response speed are improved through multi-angle monitoring and smoke extraction functions, fire detection can be carried out on a roof, and ignition performance detection can be carried out every month.

Description

Technical Field

[0001] The present invention relates to the technical field of fire detection equipment for hydropower stations, and in particular to a fire detection system and a detection method for hydropower stations. Background Art

[0002] The power transformer of a hydropower station needs to be detected in real time to see if it is on fire. Therefore, a fire detector is installed on the roof. The fire detector needs to be tested for ignition performance every month. The current fire detector is fixed on the roof, which is not convenient for performance testing. In addition, the traditional fire detection system of a hydropower station may have problems such as slow response speed and limited monitoring range. In order to improve the efficiency and accuracy of fire detection in a hydropower station, the present invention proposes a fire detection system for a hydropower station. Summary of the invention

[0003] The main purpose of the present invention is to provide a fire detection system and detection method for a hydropower station, which integrates a smoke generator, an igniter, a lifting mechanism, a fire detection component, a controller, an angle adjustment component and a smoke extraction component. The system can simulate a fire environment, monitor temperature and smoke concentration in real time, and improve the accuracy and response speed of fire detection through multi-angle monitoring and smoke extraction functions. In addition, it can perform fire detection on the roof and can also be lowered every month for ignition performance testing.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A fire detection system for a hydropower station, comprising a base plate, characterized in that:

[0006] A smoke generator and a lighter are fixed on the bottom plate, wherein the smoke generator is used to generate smoke and the lighter is used to generate flame;

[0007] The bottom plate is provided with a lifting mechanism, the lifting mechanism is connected to the bracket, the bracket is connected to the fire detection component, the lifting mechanism includes a fixed rod, a screw, a guide column and a lifting block, the guide column fixes the bottom plate, the guide column is at least one, the upper end of the guide column fixes the fixed rod, the lower center of the fixed rod is rotatably connected to the screw, the screw is threadedly connected to the lifting block, the lifting block is fixedly connected to the bracket, the fire detection component is provided on the bracket, and the bracket is also provided with a controller, the controller is electrically connected to the fire detection component, and the fire detection component is used to monitor fire;

[0008] The fire detection component is a fire detector, the fire detector communicates through a communication module, the controller and the terminal communicate through the communication module, the fire detector transmits information to the controller in real time, and the controller sends warning information to the terminal;

[0009] The lower end of the screw rod is fixedly connected to the output shaft of the driving motor, and the driving motor is fixed on the bottom plate.

[0010] As a further limitation of the present technical solution, the bracket is connected to the fire detection assembly through an angle adjustment assembly, and the angle adjustment assembly includes a driving rod, one end of the driving rod is rotatably connected to the bracket, the driving rod is L-shaped, and the other end of the driving rod is fixedly connected to the fixed end of the universal joint, and the rotating end of the universal joint is fixedly connected to the vertical axis, and the vertical axis passes through the upper center of the U-shaped connecting frame, and the vertical axis and the U-shaped connecting frame are slidably connected, and the upper and middle parts on both sides of the U-shaped connecting frame are respectively rotatably connected to the two ends of the cross-shaped connecting rod, and the other two ends of the cross-shaped connecting rod are respectively rotatably connected to the lower end of the extension rod fixed on the lower side of the bracket, and the U-shaped connecting frame is connected to the fire detection assembly through a support.

[0011] As a further limitation of the present technical solution, the bracket is also connected to a smoke extraction assembly, which includes the support member, the support member fixes the lower side of the U-shaped connecting frame, the support member is a conical hollow body and an air outlet is fixed at the upper end center of the hollow body, the lower part of the support member is provided with an air inlet hole, the air outlet of the support member passes through the lower side center of the U-shaped connecting frame, the air outlet of the support member is fixedly connected to the air inlet of the air inlet pipeline through a gas channel, the air inlet pipeline is a three-way pipe fitting, and the other two ends of the air inlet pipeline are respectively fixedly connected to the lower end inlet of the piston cylinder, each of the piston cylinders is respectively provided with an air outlet pipe, the two piston cylinders are respectively matched with piston blocks, and the upper sides of the two piston blocks The lower ends of the piston block moving rods are respectively fixed, and the piston cylinders are fixedly connected to the bracket. The circular shafts fixed at the upper ends of the two piston block moving rods are respectively arranged in the limiting grooves opened at both ends of the limiting groove rods, the center of the limiting groove rod is rotatably connected to the support arm, and the support arm is fixedly connected to the upper sides of the two piston cylinders. The support arm is an inverted T shape, and the vertical rod of the support arm is rotatably connected to the limiting groove rod, and the cross rod of the support arm is respectively passed through by the piston block moving rods, and the outer end of the circular shaft fixed at the upper end of one of the piston block moving rods is fixedly connected to one end of the second rotating rod, and the other end of the second rotating rod is rotatably connected to one end of the first rotating rod, and the other end of the first rotating rod is rotatably connected to the support rod, and the support rod is fixedly connected to the bracket.

[0012] As a further limitation of the present technical solution, it also includes a driving component, which is connected to the angle adjustment component, and the driving component includes a steering gear and a first bevel gear, the steering gear is fixed to the lower side of the protective plate, the protective plate is fixedly connected to the upper end of the support rod, the output shaft of the steering gear is fixed to the first bevel gear, and one end of the driving rod is fixed to the lower center of the first bevel gear, and the lower parts of the outer wall of the U-shaped connecting frame are respectively fixed with fire detection component fixing blocks, one of the fire detection component fixing blocks is fixedly connected to the fire detection component, and the other of the fire detection component fixing blocks is fixedly connected to the camera, and the fire detector is integrated with a temperature sensor and a smoke sensor, and there are at least two smoke sensors, one of the smoke sensor contacts is arranged inside the support member, and the other of the smoke sensor contacts is arranged on the lower side of the outer shell of the fire detector, and the temperature sensor contacts are arranged on the lower side of the outer shell of the fire detector.

[0013] As a further limitation of the present technical solution, the angle adjustment assembly is connected to the smoke extraction assembly, and the smoke extraction assembly also includes a second bevel gear, the first bevel gear meshes with the second bevel gear, and the center of the second bevel gear fixes the other end of the second rotating rod.

[0014] As a further limitation of the present technical solution, the camera is electrically connected to the controller, the camera and the controller communicate through a communication module, the camera transmits the captured image to the controller, the controller analyzes the image captured by the camera, and when the camera captures a fire, the controller sends a warning message to the terminal.

[0015] As a further limitation of the technical solution, a one-way air outlet valve is provided in the air outlet pipe, a one-way air inlet valve is provided at the lower inlet of the piston cylinder, and the gas channel is an elastic heat-resistant plastic tube.

[0016] The present invention also provides a detection method for a fire detection system of a hydropower station, comprising the following steps:

[0017] Step 1: Install the system at a suitable location in the hydropower station, ensure that the power transformer can be monitored daily when the lifting assembly raises the climate detection assembly to a high position, ensure that the smoke generator and igniter can simulate a real fire environment, and set the temperature and smoke thresholds through the controller so that the system can accurately identify the fire;

[0018] Step 2: When performing the monthly scheduled ignition performance test, use the lifting mechanism to adjust the height of the fire detection assembly so that the fire detection assembly is lowered to a suitable height;

[0019] Step 3: The smoke generator and the ignition lighter can simulate the real fire environment and perform the ignition performance test. The angle adjustment component and the smoke extraction component can be operated through the driving component. The angle adjustment component can adjust the angle of the fire detection component to achieve multi-angle monitoring. The smoke extraction component can extract the smoke to reduce the impact of the fire on the equipment. The smoke will pass through the inside of the support. The smoke sensor inside the support can accurately monitor the smoke situation.

[0020] Step 4: After the ignition detection is completed, if the fire detection component can work normally, lift it to a suitable height position through the lifting assembly. If the fire detection component cannot work normally, repair or replace the fire detection component.

[0021] During daily monitoring and regular ignition detection, the smoke sensor and temperature sensor of the fire detection component will automatically monitor changes in temperature and smoke, and send the monitoring data to the controller. The camera will capture the scene in real time. After the controller analyzes the picture and monitoring data, if the fire is confirmed, it will send a warning message to the terminal.

[0022] The present invention realizes height adjustment of the fire detection component through the lifting component, realizes regular lowering of the bracket and the fire detection component of the device for ignition detection, realizes regular performance testing of the fire detection component, and after the test, the fire detection component can be conveniently raised to the power transformer;

[0023] The fire detector is integrated with a temperature sensor and a smoke sensor. The temperature sensor and the smoke sensor communicate with the controller through a communication module. The controller and the terminal communicate through the communication module. The temperature sensor and the smoke sensor transmit temperature information and smoke information to the controller in real time. When a fire occurs, the temperature information and smoke information monitored by the temperature sensor and the smoke sensor exceed the set threshold, and the controller sends an alarm message to the terminal to realize the alarm function.

[0024] The present invention is provided with an angle adjustment component and a smoke extraction component. The angle adjustment component can adjust the angle of the fire detection component, and the angle can be adjusted in real time to realize multi-angle monitoring. The driving rod rotates, and the vertical shaft can rotate around the fixed end of the universal joint through the universal joint. The vertical shaft rotates under the drive of the universal joint, and then drives the U-shaped connecting frame. The U-shaped connecting frame moves up and down along the vertical axis under the drive of the vertical axis, and the U-shaped connecting frame drives the cross-shaped connecting rod to move. The U-shaped connecting frame finally drives the fire detection component to circulate through the support member to realize multi-angle monitoring. The smoke extraction component can realize the rotation of the first rotating rod to drive the second rotating rod to circulate under the linkage of the first bevel gear and the second bevel gear, and finally drive the piston block to move up and down in the piston cylinder to realize continuous smoke extraction. The smoke extraction component can extract smoke and reduce the impact of fire on equipment, and the smoke will pass through the inside of the support member. The smoke sensor inside the support member can accurately monitor the smoke situation. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 The structure of a fire detection system for a hydropower station according to the present invention is shown in FIG. Figure 1 ;

[0026] Figure 2 A partial structural diagram of a fire detection system for a hydropower station according to the present invention Figure 1 ;

[0027] Figure 3 A partial structural diagram of a fire detection system for a hydropower station according to the present invention Figure 2 ;

[0028] Figure 4 A side view of a fire detection system for a hydropower station according to the present invention;

[0029] Figure 5 A partial structural diagram of a fire detection system for a hydropower station according to the present invention Figure 3 ;

[0030] Figure 6 A partial structural diagram of a fire detection system for a hydropower station according to the present invention Figure 4 ;

[0031] Explanation of reference numerals: lifting mechanism 1, fixed rod 101, screw rod 102, guide column 103, lifting block 104, drive motor 2, base plate 3, smoke generator 4, igniter 5, protective plate 6, servo 7, first bevel gear 8, controller 9, bracket 10, universal joint 11, vertical axis 12, U-shaped connecting frame 14, support member 15, fire detection assembly 16, camera 161, fire detection assembly fixed block 17, cross-shaped connecting rod 18, air inlet pipe 19, air outlet pipe 20, piston cylinder 21, piston block moving rod 22, support arm 221, support rod 23, second bevel gear 24, first rotating rod 25, drive rod 26, piston block 27, limit groove rod 28, second rotating rod 29. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0033] A fire detection system for a hydropower station, comprising a base plate 3,

[0034] A smoke generator 4 and a lighter 5 are fixed on the bottom plate 3, wherein the smoke generator is used to generate smoke, and the lighter 5 is used to generate flame;

[0035] The bottom plate 3 is provided with a lifting mechanism 1, the lifting mechanism 1 is connected to a bracket 10, the bracket 10 is connected to a fire detection assembly 16, the lifting mechanism 1 comprises a fixed rod 101, a screw 102, a guide column 103 and a lifting block 104, the guide column 103 fixes the bottom plate 3, there is at least one guide column 103, the upper end of the guide column 103 fixes the fixed rod 101, the lower center of the fixed rod 101 is rotatably connected to the screw 102, the screw 102 is threadedly connected to the lifting block 104, the lifting block 104 is fixedly connected to the bracket 10, the fire detection assembly 16 is provided on the bracket 10, and the bracket 10 is also provided with a controller 9, the controller 9 is electrically connected to the fire detection assembly 16, and the fire detection assembly 16 is used to monitor fire;

[0036] The fire detection component 16 is a fire detector (the fire detector adopts an existing product, and the specific structure and working principle are not repeated, and the drawings are not shown in detail). The fire detector is integrated with a temperature sensor and a smoke sensor. The temperature sensor and the smoke sensor communicate with the controller 9 through a communication module, and the controller 9 communicates with the terminal through the communication module. The temperature sensor and the smoke sensor transmit the temperature information and the smoke information to the controller 9 in real time. When a fire occurs, the temperature information and the smoke information monitored by the temperature sensor and the smoke sensor exceed the set threshold, and the controller 9 sends a warning message to the terminal;

[0037] The lower end of the screw rod 102 is fixedly connected to the output shaft of the driving motor 2 , and the driving motor 2 is fixed on the bottom plate 3 .

[0038] In this embodiment, the smoke generator 4 and the igniter 5 are used to simulate a fire environment, generate smoke and flames, and test the responsiveness of the system;

[0039] In this embodiment, the driving motor 2 is a stepping motor, and the lifting mechanism 1 can control the lifting of the fire detection assembly 16. The driving motor 2 controls the rotation of the screw 102 to drive the lifting block 104 to move up and down. The guide column 103 plays a guiding role, thereby adjusting the height of the bracket 10 and the fire detection assembly 16 so that it can be lowered regularly for ignition performance testing. After the test, the fire detection assembly 16 is raised to the power transformer by the lifting mechanism 1 to detect whether a fire occurs;

[0040] In this embodiment, the fire detection component 16 is integrated with a temperature sensor and a smoke sensor to monitor the temperature and smoke concentration of the environment in real time. The temperature sensor and the smoke sensor transmit the monitored data to the controller 9. When the detected parameters exceed the preset thresholds, when a fire occurs, the temperature information and smoke information monitored by the temperature sensor and the smoke sensor exceed the set thresholds, and the controller 9 sends a warning message to the terminal.

[0041] The bracket 10 is connected to the fire detection component 16 through an angle adjustment component, and the angle adjustment component includes a driving rod 26, one end of the driving rod 26 is rotatably connected to the bracket 10, the driving rod 26 is L-shaped, and the other end of the driving rod 26 is fixedly connected to the fixed end of the universal joint 11, and the rotating end of the universal joint 11 is fixedly connected to the vertical shaft 12, and the vertical shaft 12 passes through the upper center of the U-shaped connecting frame 14, and the vertical shaft 12 and the U-shaped connecting frame 14 are slidably connected. The upper and middle parts of both sides of the U-shaped connecting frame 14 are respectively rotatably connected to the two ends of the cross-shaped connecting rod 18, and the other two ends of the cross-shaped connecting rod 18 are respectively rotatably connected to the lower end of the extension rod fixed on the lower side of the bracket 10, and the U-shaped connecting frame 14 is connected to the fire detection component 16 through the support 15.

[0042] In this embodiment, the angle adjustment component can adjust the angle of the fire detection component 16, and the angle can be adjusted in real time to realize multi-angle monitoring. The driving rod 26 rotates. The driving rod 26 is an L-shaped structure, one end of which is connected to the bracket 10, and the other end is connected to the universal joint 11. The universal joint 11 allows the driving rod 26 to rotate in multiple directions, so that the vertical shaft 12 can rotate around the fixed end of the universal joint 11. The vertical shaft 12 rotates under the drive of the universal joint 11, and then drives the U-shaped connecting frame 14. The U-shaped connecting frame 14 moves up and down along the vertical shaft 12 under the drive of the vertical shaft 12. The U-shaped connecting frame 14 drives the cross-shaped connecting rod 18 to move. The U-shaped connecting frame 14 finally drives the fire detection component 16 to circulate through the support 15 to realize multi-angle monitoring.

[0043] The bracket 10 is also connected to a smoke extraction assembly, which includes the support member 15, the support member 15 is fixed to the lower side of the U-shaped connecting frame 14, the support member 15 is a conical cavity and an air outlet is fixed at the upper end center of the cavity, an air inlet hole is provided at the lower part of the support member 15, the air outlet of the support member 15 passes through the lower side center of the U-shaped connecting frame 14, the air outlet of the support member 15 is fixedly connected to the air inlet of the air inlet pipe 19 through a gas channel, the air inlet pipe 19 is a three-way pipe fitting, and the other two ends of the air inlet pipe 19 are respectively fixedly connected to the lower end inlet of the piston cylinder 21, and an air outlet pipe 20 is respectively provided at the middle and lower part of each of the piston cylinders 21, and piston blocks 27 are respectively matched in the two piston cylinders 21, and the upper sides of the two piston blocks 27 are respectively fixed to the lower ends of the piston block moving rods 22. The ends of the piston cylinders 21 are fixedly connected to the bracket 10, and the circular shafts fixed at the upper ends of the two piston block moving rods 22 are respectively arranged in the limiting grooves opened at the two ends of the limiting groove rod 28, and the center of the limiting groove rod 28 is rotatably connected to the support arm 221, and the support arm 221 is fixedly connected to the upper sides of the two piston cylinders 21. The support arm 221 is an inverted T-shape, and the vertical rod of the support arm 221 is rotatably connected to the limiting groove rod 28, and the cross rod of the support arm 221 is respectively passed through by the piston block moving rod 22, and the outer end of the circular shaft fixed at the upper end of one piston block moving rod 22 is fixedly connected to one end of the second rotating rod 29, and the other end of the second rotating rod 29 is rotatably connected to one end of the first rotating rod 25, and the other end of the first rotating rod 25 is rotatably connected to the support rod 23, and the support rod 23 is fixedly connected to the bracket 10.

[0044] In this embodiment, the smoke extraction component is used to extract smoke. The rotation of the first rotating rod 25 of the smoke extraction component can drive the second rotating rod 29 to move in a circular motion. The second rotating rod 29 drives the limiting groove rod 28 to swing back and forth. The limiting groove rod 28 drives the piston block moving rod 22 to move up and down. The piston block moving rod 22 moves along the through hole passing through the support arm 221. The support arm 221 plays a guiding role. The piston block moving rod 22 drives the piston block 27 to move up and down in the piston cylinder 21. The piston block 27 moves up to extract air. The gas enters from the lower air inlet of the support member 15 and enters the piston cylinder 21 from the upper air outlet of the support member 15 along the gas channel and the air inlet pipeline 19. The piston block 27 moves down and the gas is discharged from the air outlet pipe 20, thereby realizing the gas extraction cycle process.

[0045] It also includes a driving component, which is connected to the angle adjustment component. The driving component includes a steering gear 7 and a first bevel gear 8. The steering gear 7 is fixed to the lower side of the protective plate 6, and the protective plate 6 is fixedly connected to the upper end of the support rod 23. The output shaft of the steering gear 7 fixes the first bevel gear 8. The lower center of the first bevel gear 8 is fixed to one end of the driving rod 26. The lower parts of the two sides of the outer wall of the U-shaped connecting frame 14 are respectively fixed with fire detection component fixing blocks 17, one of the fire detection component fixing blocks 17 is fixedly connected to the fire detection component 16, and the other fire detection component fixing block 17 is fixedly connected to the camera 161. The fire detection component 16 has at least two smoke sensors, one of which has a contact of the smoke sensor arranged inside the support member 15, and the other has a contact of the smoke sensor arranged on the lower side of the outer shell of the fire detector, and the contact of the temperature sensor is arranged on the lower side of the outer shell of the fire detector.

[0046] In this embodiment, the steering gear 7 of the driving assembly can drive the first bevel gear 8 to rotate, and the first bevel gear 8 drives the driving rod 26 to rotate, thereby realizing the operation of the angle adjustment assembly;

[0047] In this embodiment, the fire detection component 16 also includes a camera 161, which transmits the captured image to the controller 9. The controller 9 analyzes the image captured by the camera 161. When the camera 161 captures a fire, the controller 9 sends a warning message to the terminal.

[0048] The angle adjustment assembly is connected to the smoke extraction assembly, and the smoke extraction assembly further comprises a second bevel gear 24 . The first bevel gear 8 is meshed with the second bevel gear 24 , and the center of the second bevel gear 24 fixes the other end of the second rotating rod 29 .

[0049] In this embodiment, the rotation of the first bevel gear 8 drives the second bevel gear 24 to rotate, and further drives the second rotating rod 29 to rotate, thereby realizing the operation of the smoke extraction assembly.

[0050] The camera 161 is electrically connected to the controller 9. The camera 161 and the controller 9 communicate through a communication module. The camera 161 transmits the captured image to the controller 9. The controller 9 analyzes the image captured by the camera 161. When the camera 161 captures a fire, the controller 9 sends a warning message to the terminal.

[0051] The outlet pipe 20 is provided with a one-way outlet valve, the lower inlet of the piston cylinder 21 is provided with a one-way inlet valve, and the gas passage is an elastic heat-resistant plastic tube.

[0052] When in use, the system is installed at an appropriate location in the hydropower station to ensure that the lifting assembly 1 can perform daily monitoring of the power transformer when the climate detection assembly 16 is raised to a high position, and that the smoke generator 4 and the igniter 5 can simulate a real fire environment. The temperature and smoke thresholds are set by the controller 9 so that the system can accurately identify the fire. When performing the monthly scheduled ignition performance test, the height of the fire detection assembly 16 is adjusted by the lifting mechanism 1 to lower the fire detection assembly 16 to a suitable height. The smoke generator 4 and the igniter 5 can simulate a real fire environment to perform the ignition performance test. Detection, the angle adjustment component and the smoke extraction component are realized through the driving component. The angle adjustment component can adjust the angle of the fire detection component 16 to realize multi-angle monitoring. The smoke extraction component can extract smoke to reduce the impact of fire on the equipment, and the smoke will pass through the inside of the support 15. The smoke sensor inside the support 15 can accurately monitor the smoke situation. After the ignition detection is completed, if the fire detection component 16 can work normally, it is raised to a suitable height position through the lifting component 1. If the fire detection component 16 cannot work normally, the fire detection component 16 is repaired or replaced;

[0053] During daily monitoring and regular ignition detection, the smoke sensor and temperature sensor of the fire detection component 16 will automatically monitor changes in temperature and smoke, and send the monitoring data to the controller 9. The camera 161 will capture the scene in real time. After the controller analyzes the picture and monitoring data, if the fire is confirmed, it will send a warning message to the terminal.

[0054] The present invention also provides a detection method for a fire detection system of a hydropower station, comprising the following steps:

[0055] Step 1: Install the system at a suitable location in the hydropower station, ensure that the power transformer can be monitored daily when the lifting assembly 1 raises the climate detection assembly 16 to a high position, ensure that the smoke generator 4 and the igniter 5 can simulate a real fire environment, and set the temperature and smoke thresholds through the controller 9 so that the system can accurately identify the fire;

[0056] Step 2: When performing the monthly ignition performance test, use the lifting mechanism 1 to adjust the height of the fire detection assembly 16 so that the fire detection assembly 16 is lowered to a suitable height;

[0057] Step 3: The smoke generator 4 and the igniter 5 can simulate a real fire environment to test the ignition performance. The driving component can realize the operation of the angle adjustment component and the smoke extraction component. The angle adjustment component can adjust the angle of the fire detection component 16 to achieve multi-angle monitoring. The smoke extraction component can extract smoke to reduce the impact of the fire on the equipment. The smoke will pass through the inside of the support 15. The smoke sensor inside the support 15 can accurately monitor the smoke situation.

[0058] Step 4: After the ignition detection is completed, if the fire detection component 16 can work normally, it is raised to a suitable height position by the lifting component 1. If the fire detection component 16 cannot work normally, the fire detection component 16 is repaired or replaced.

[0059] Among them, during daily monitoring and regular ignition detection, the smoke sensor and temperature sensor of the fire detection component 16 will automatically monitor the changes in temperature and smoke, and send the monitoring data to the controller 9. The camera 161 will take real-time pictures of the scene. After the controller analyzes the picture and monitoring data, if the fire is confirmed, it will send a warning message to the terminal.

[0060] The specific implementation methods of the invention are described in detail above, but they are only examples, and the invention is not limited to the specific implementation methods described above. For those skilled in the art, any equivalent modification or substitution of the invention is also within the scope of the invention, and therefore, the equalization, modification, improvement, etc. made without departing from the spirit and principle of the invention should be included in the scope of the invention.

Claims

1. A fire detection system for a hydroelectric power station, comprising a base plate (3), characterized in that: A smoke generator (4) and a lighter (5) are fixed on the bottom plate (3), wherein the smoke generator is used to generate smoke, and the lighter (5) is used to generate flame; A lifting mechanism (1) is provided on the bottom plate (3), the lifting mechanism (1) is connected to a bracket (10), the bracket (10) is connected to a fire detection assembly (16), the lifting mechanism (1) comprises a fixing rod (101), a screw rod (102), a guide column (103) and a lifting block (104), the guide column (103) fixes the bottom plate (3), there is at least one guide column (103), and the upper end of the guide column (103) fixes the fixing rod (101). The lower center of the fixed rod (101) is rotatably connected to the screw rod (102), the screw rod (102) is threadedly connected to the lifting block (104), the lifting block (104) is fixedly connected to the bracket (10), the bracket (10) is provided with the fire detection component (16), the bracket (10) is also provided with a controller (9), the controller (9) is electrically connected to the fire detection component (16), and the fire detection component (16) is used to monitor fire; The fire detection component (16) is a fire detector, the fire detector communicates via a communication module, the controller (9) and the terminal communicate via the communication module, the fire detector transmits information to the controller (9) in real time, and the controller (9) sends warning information to the terminal; The lower end of the screw rod (102) is fixedly connected to the output shaft of the drive motor (2), and the drive motor (2) is fixed on the base plate (3).

2. A fire detection system for a hydropower station according to claim 1, characterized in that: The bracket (10) is connected to the fire detection component (16) through an angle adjustment component, and the angle adjustment component comprises a driving rod (26), one end of the driving rod (26) is rotatably connected to the bracket (10), the driving rod (26) is L-shaped, the other end of the driving rod (26) is fixedly connected to the fixed end of the universal joint (11), the rotating end of the universal joint (11) is fixedly connected to the vertical shaft (12), the vertical shaft (12) passes through the upper center of the U-shaped connecting frame (14), the vertical shaft (12) and the U-shaped connecting frame (14) are connected in a sliding manner, the middle and upper parts of both sides of the U-shaped connecting frame (14) are respectively rotatably connected to the two ends of the cross-shaped connecting rod (18), the other two ends of the cross-shaped connecting rod (18) are respectively rotatably connected to the lower end of the extension rod fixed on the lower side of the bracket (10), and the U-shaped connecting frame (14) is connected to the fire detection component (16) through a support member (15).

3. A fire detection system for a hydropower station according to claim 2, characterized in that: The bracket (10) is also connected to a smoke extraction assembly, and the smoke extraction assembly comprises the support member (15), the support member (15) is fixed to the lower side of the U-shaped connecting frame (14), the support member (15) is a conical cavity body and an air outlet is fixed at the upper end center of the cavity body, an air inlet is arranged at the lower part of the support member (15), the air outlet of the support member (15) passes through the lower side center of the U-shaped connecting frame (14), and the air outlet of the support member (15) is fixed to the lower side center of the U-shaped connecting frame (14). The gas port is fixedly connected to the gas inlet of the gas inlet pipeline (19) through the gas channel. The gas inlet pipeline (19) is a three-way pipe fitting. The other two ends of the gas inlet pipeline (19) are respectively fixedly connected to the lower end inlet of the piston cylinder (21). The middle and lower part of each piston cylinder (21) is respectively provided with a gas outlet pipe (20). The two piston cylinders (21) are respectively matched with piston blocks (27). The upper sides of the two piston blocks (27) are respectively fixed with the lower ends of the piston block moving rods (22). The piston cylinders (21) are fixedly connected to the bracket (10); the circular shafts fixed at the upper ends of the two piston block moving rods (22) are respectively arranged in the limiting grooves opened at the two ends of the limiting groove rod (28); the center of the limiting groove rod (28) is rotatably connected to the support arm (221); the support arm (221) is fixedly connected to the upper sides of the two piston cylinders (21); the support arm (221) is in an inverted T shape; the vertical rod of the support arm (221) is rotatably connected to the limiting groove rod (28); the horizontal rod of the support arm (221) is respectively passed through by the piston block moving rods (22); the outer end of the circular shaft fixed at the upper end of one of the piston block moving rods (22) is fixedly connected to one end of the second rotating rod (29); the other end of the second rotating rod (29) is rotatably connected to one end of the first rotating rod (25); the other end of the first rotating rod (25) is rotatably connected to the support rod (23); the support rod (23) is fixedly connected to the bracket (10).

4. A fire detection system for a hydropower station according to claim 2, characterized in that: The invention also comprises a driving assembly, wherein the driving assembly is connected to the angle adjustment assembly, and the driving assembly comprises a steering gear (7) and a first bevel gear (8). The steering gear (7) is fixed to the lower side of the protective plate (6), and the protective plate (6) is fixedly connected to the upper end of the support rod (23). The output shaft of the steering gear (7) is fixed to the first bevel gear (8), and one end of the driving rod (26) is fixed to the lower center of the first bevel gear (8). The lower parts of the outer wall of the U-shaped connecting frame (14) are respectively fixed with fire detection assembly fixing blocks (17), one of the fire detection assembly fixing blocks (17) is fixedly connected to the fire detection assembly (16), and the other of the fire detection assembly fixing blocks (17) is fixedly connected to the camera (161). The fire detector is integrated with a temperature sensor and a smoke sensor, and there are at least two smoke sensors. The contact of one of the smoke sensors is arranged inside the support member (15), and the contact of the other of the smoke sensors is arranged on the lower side of the shell of the fire detector. The contact of the temperature sensor is arranged on the lower side of the shell of the fire detector.

5. A fire detection system for a hydropower station according to claim 3, characterized in that: The angle adjustment component is connected to the smoke extraction component, and the smoke extraction component also includes a second bevel gear (24), the first bevel gear (8) is meshed with the second bevel gear (24), and the center of the second bevel gear (24) fixes the other end of the second rotating rod (29).

6. A fire detection system for a hydropower station according to claim 4, characterized in that: The camera (161) is electrically connected to the controller (9), the camera (161) and the controller (9) communicate via a communication module, the camera (161) transmits the captured images to the controller (9), the controller (9) analyzes the images captured by the camera (161), and when the camera (161) captures a fire, the controller (9) sends a warning message to the terminal.

7. A fire detection system and method for a hydropower station according to claim 6, characterized in that: The air outlet pipe (20) is provided with a one-way air outlet valve, the lower inlet of the piston cylinder (21) is provided with a one-way air inlet valve, and the gas channel is an elastic heat-resistant plastic tube.

8. A detection method for a fire detection system of a hydropower station, characterized in that: The following steps are involved: Step 1: Install the system at an appropriate location in the hydropower station, ensure that the power transformer can be monitored daily when the lifting assembly raises the climate detection assembly to a high position, ensure that the smoke generator (4) and the ignition device (5) can simulate a real fire environment, and set the temperature and smoke thresholds through the controller (9) so that the system can accurately identify the fire; Step 2: When performing the monthly ignition performance test, the height of the fire detection assembly (16) is adjusted using the lifting mechanism (1) so that the fire detection assembly (16) is lowered to a suitable height; Step 3: The smoke generator (4) and the lighter (5) can simulate a real fire environment to perform ignition performance testing. The driving component can realize the operation of the angle adjustment component and the smoke extraction component. The angle adjustment component can adjust the angle of the fire detection component (16) to achieve multi-angle monitoring. The smoke extraction component can extract smoke to reduce the impact of the fire on the equipment. The smoke will pass through the inside of the support (15). The smoke sensor inside the support (15) can accurately monitor the smoke situation. Step 4: After the ignition detection is completed, if the fire detection component (16) can work normally, it is raised to a suitable height position by the lifting component. If the fire detection component (16) cannot work normally, the fire detection component (16) is repaired or replaced.

9. A detection method for a fire detection system in a hydropower station according to claim 8, characterized in that: During daily monitoring and periodic ignition detection, the smoke sensor and temperature sensor of the fire detection component (16) will automatically monitor changes in temperature and smoke, and send the monitoring data to the controller (9). The camera (161) will capture the scene in real time, and the controller (9) will analyze the picture and monitoring data.

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