Thermal power risk identification alarm device
By using a self-locking telescopic rod and a multi-axis adjustment system driven by a servo motor, combined with temperature sensors, smoke detectors, and cameras, the problem of low automation in thermal power plant monitoring equipment has been solved. This enables multi-angle risk identification and efficient heat dissipation and dust removal, thus improving the practicality of thermal power plant monitoring equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 国能四川天明发电有限公司
- Filing Date
- 2025-06-04
- Publication Date
- 2026-04-17
AI Technical Summary
Existing monitoring equipment in thermal power plants has a low degree of automation, limited adjustment angles, lacks multi-axis adjustment mechanisms, cannot acquire temperature data and smoke detection information, and has unsatisfactory heat dissipation and dust removal effects.
The system employs a multi-axis adjustment mechanism driven by a self-locking telescopic rod, an asynchronous motor, and a servo motor. Combined with a temperature sensor, a smoke detector, and a camera, it enables multi-angle adjustment and automated monitoring of the equipment. The system also utilizes an arc-shaped plate driven by a servo motor for heat dissipation and dust removal.
It enables multi-angle risk identification of thermal power equipment, improves the automation and practicality of monitoring equipment, ensures accurate acquisition of temperature and smoke information, and enhances heat dissipation and dust removal effects.
Smart Images

Figure CN224135636U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of alarm equipment technology, specifically a thermal power risk identification alarm device. Background Technology
[0002] In today's energy landscape, thermal power generation plays a crucial role in meeting society's electricity demand as an important means of power supply. However, the thermal power generation process involves many complex equipment and systems, such as boilers, steam turbines, generators, and various auxiliary equipment. These devices operate continuously under harsh conditions such as high temperature, high pressure, and high speed, which makes thermal power plants face a high risk of failure. Once the equipment fails, it will not only lead to power generation interruption and huge economic losses, but may also cause safety accidents, posing a serious threat to human life and the environment.
[0003] Currently, in existing technologies, such as Chinese patent with publication number CN217762785U, an auxiliary alarm device for thermal power plants is disclosed. This device, through the setting of a crossbar, a sliding plate, a locking plate, and a rotating rod, allows construction personnel to install the crossbar in the area that needs to be monitored. The sliding plate can slide inside the crossbar, making it convenient for construction personnel to monitor a small area of the thermal power plant. The rotating rod can rotate inside the locking plate, which allows construction personnel to change the monitoring height and expand the monitoring range.
[0004] However, the above-mentioned equipment has obvious shortcomings in use. The various adjustment structures require manual adjustment, resulting in low automation and making it inconvenient for operators to control and adjust them from the background. Furthermore, the adjustment angle is limited, and there is a lack of multi-axis adjustment mechanisms to ensure that the monitoring elements can cover more angles in three-dimensional space and accurately capture risk signals from all directions of thermal power equipment. It can only obtain information from the monitoring screen and cannot obtain temperature data and smoke detection information. Moreover, it relies on exhaust fans for heat dissipation and dust removal, but since the exhaust fans are some distance away from the cameras, the heat dissipation and dust removal effect is not ideal. The overall practicality needs to be improved. In view of this, we propose a thermal power risk identification alarm device. Utility Model Content
[0005] The purpose of this invention is to provide a thermal power risk identification and alarm device to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A thermal power plant risk identification and alarm device includes a mounting frame, on which a movable component is disposed, the movable component comprising:
[0008] The self-locking telescopic rod has a fixed end fixedly connected to the outer wall of the mounting frame. A fixed frame is fixedly installed on the piston end of the self-locking telescopic rod. An asynchronous motor is fixedly installed on the outer wall of the fixed frame. A threaded rod is fixedly installed on the output end of the asynchronous motor. Both ends of the threaded rod are rotatably installed inside the fixed frame through bearing components. A threaded block is threadedly engaged on the threaded rod. A slide rail is also fixedly installed on the fixed frame. One side of the threaded block is fixedly installed on the sliding component of the slide rail.
[0009] The main rod has a threaded block fixedly connected to one end of the main rod. A first asynchronous motor is fixedly installed at the other end of the main rod. A slave rod is fixedly installed outside the output shaft of the first asynchronous motor. A second asynchronous motor is fixedly installed at the other end of the slave rod. A third asynchronous motor is fixedly installed outside the output shaft of the second asynchronous motor. The output shaft of the third asynchronous motor is fixedly connected to the center of one end of the U-shaped frame.
[0010] A disc is fixedly installed at one end of the U-shaped frame, and a monitoring element is provided at the other end of the disc.
[0011] In a further embodiment, multiple sets of self-locking telescopic rods are provided, making the movement of the fixing frame more stable.
[0012] In a further embodiment, the slide rail is provided in two sets, which makes the movement of the threaded block more stable.
[0013] In a further embodiment, the monitoring device includes a temperature sensor, a smoke detector, and a camera, all of which are fixedly installed on the outer wall of the disc.
[0014] In a further embodiment, the temperature sensor, smoke detector, and camera are configured in two sets.
[0015] In a further embodiment, the two sets of temperature sensors, smoke detectors, and cameras are all arranged in an alternating circular array with the center of the circular cross-section of the disk as the array center, thereby making the acquired data and information more accurate.
[0016] In a further embodiment, an auxiliary component is provided on the outside of the mounting frame. The auxiliary component includes a servo motor. The servo motor is fixedly installed at the center of the side of the disc near the U-shaped frame. A rotating shaft is fixedly installed at the output end of the servo motor. The outer wall of the rotating shaft is fixedly installed at the center inside the circular frame. An arc-shaped plate is fixedly installed on the circular frame.
[0017] In a further embodiment, the arc-shaped plate is provided in multiple sets to improve heat dissipation and dust removal.
[0018] In a further embodiment, an auxiliary telescopic rod is hinged to both ends of the main rod and the secondary rod, making the swing of the secondary rod more stable.
[0019] In a further embodiment, a protective cover is snapped onto the outside of the fixing frame, and a through horizontal groove is provided on the protective cover. The threaded block passes through the horizontal groove to better protect the internal structure of the protective cover.
[0020] Compared with the prior art, this utility model provides a thermal power risk identification and alarm device, which has the following beneficial effects:
[0021] 1. To improve the practicality of this thermal power risk identification and alarm device, a movable component is incorporated. Adjusting the self-locking telescopic rod on the mounting frame allows for adjustment of the distance between the fixed frame and the installation position. Starting the asynchronous motor causes the threaded rod to rotate, resulting in axial movement of the threaded block. This, combined with the slide rail, allows the main rod to move axially. Starting the first asynchronous motor drives the driven rod to rotate, and starting the second asynchronous motor causes the third asynchronous motor to rotate as a whole. Starting the third asynchronous motor causes the U-shaped frame and disc to rotate. This multi-axis adjustment allows for better positioning and orientation of the temperature sensor, smoke detector, and camera, thus improving risk identification and enhancing the overall practicality of the device.
[0022] 2. To improve the operation of this thermal power risk identification and alarm device, auxiliary components are incorporated. When the servo motor is activated, the rotating shaft drives the circular frame to rotate, causing multiple sets of arc plates to rotate synchronously. This allows for airflow to the temperature sensor, smoke detector, and camera, facilitating heat dissipation and cleaning accumulated dust from their exteriors. When the driven rod rotates, the auxiliary telescopic rod extends and retracts synchronously, ensuring more stable rotation of the driven rod. The protective cover prevents external dust and impurities from accumulating on the threaded rod, and the transverse groove allows the threaded block to move normally. In summary, this design enables the device to operate more efficiently. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0024] Figure 2 This is a schematic diagram of the overall structure of the present invention from another perspective;
[0025] Figure 3 This is a schematic diagram of part of the structure of this utility model;
[0026] Figure 4 This utility model Figure 3 Enlarged structural diagram of region A in the middle;
[0027] Figure 5 This is a first schematic diagram of the cross-section of the third asynchronous motor of this utility model;
[0028] Figure 6This is a second schematic diagram of the cross-section of the third asynchronous motor of this utility model.
[0029] Explanation of icon numbers:
[0030] 1. Mounting bracket;
[0031] 2. Moving component; 21. Self-locking telescopic rod; 22. Fixing frame; 23. Asynchronous motor; 24. Threaded rod; 25. Threaded block; 26. Slide rail; 27. Main rod; 28. First asynchronous motor; 29. Slave rod; 210. Second asynchronous motor; 211. Third asynchronous motor; 212. U-shaped frame; 213. Disc; 214. Temperature sensor; 215. Smoke alarm; 216. Camera;
[0032] 3. Auxiliary components; 31. Servo motor; 32. Rotating shaft; 33. Circular frame; 34. Arc plate; 35. Auxiliary telescopic rod; 36. Protective cover; 37. Horizontal groove. Detailed Implementation
[0033] 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.
[0034] In this application, the term "above" indicates the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. It is primarily used to better describe this application and its embodiments, and is not intended to limit the indicated device, element, or component to having a specific orientation, or to construct and operate in a specific orientation. Furthermore, the term "above" may also be used in certain circumstances to indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application according to the specific circumstances.
[0035] Please see Figures 1-6 This utility model provides a technical solution:
[0036] A thermal power risk identification alarm device includes a mounting bracket 1, which is used to install the device on a ceiling or wall.
[0037] In one embodiment of this utility model, a movable component 2 is provided on the mounting frame 1. The movable component 2 includes a self-locking telescopic rod 21. The fixed end of the self-locking telescopic rod 21 is fixedly connected to the outer wall of the mounting frame 1. A fixed frame 22 is fixedly installed on the piston end of the self-locking telescopic rod 21. In addition, two sets of self-locking telescopic rods 21 are provided to make the movement of the fixed frame 22 more stable. An asynchronous motor 23 is fixedly installed on the outer wall of the fixed frame 22. A threaded rod 24 is fixedly installed on the output end of the asynchronous motor 23. The two ends of the threaded rod 24 are rotatably installed inside the fixed frame 22 through bearing components. Threaded blocks 25 are threadedly engaged on the threaded rod 24. A slide rail 26 is also fixedly installed on the fixed frame 22. One side of the threaded block 25 is fixedly installed on the sliding component of the slide rail 26. In addition, two sets of slide rails 26 are provided to make the movement of the threaded block 25 more stable. One end of the main rod 27 is fixedly connected to the other side of the threaded block 25. A first asynchronous motor is fixedly installed on the other end of the main rod 27. A first asynchronous motor 28 has a first asynchronous motor 28. One end of a follower rod 29 is fixedly mounted on the output shaft of the first asynchronous motor 28. A second asynchronous motor 210 is fixedly mounted on the other end of the follower rod 29. A third asynchronous motor 211 is fixedly mounted on the output shaft of the second asynchronous motor 210. The output shaft of the third asynchronous motor 211 is fixedly connected to the center of one end of a U-shaped frame 212. One end of a disc 213 is fixedly mounted on the other end of the disc 213. The other end of the disc 213 is equipped with a monitoring device, which includes a temperature sensor 214, a smoke alarm 215, and a camera 216. All three are fixedly mounted on the outer wall of the disc 213. In addition, there are two sets of temperature sensors 214, smoke alarms 215, and cameras 216. The two sets of temperature sensors 214, smoke alarms 215, and cameras 216 are arranged in an alternating circumferential array with the center of the circular cross-section of the disc 213 as the array center, so as to make the acquired data and information more accurate.
[0038] In this embodiment, when the monitoring position of the device needs to be adjusted, firstly, operate the self-locking telescopic rod 21 on the mounting bracket 1. The telescopic movement of its piston end changes the distance between the fixed bracket 22 and the mounting surface such as the ceiling or wall, providing basic space for subsequent mechanical adjustments. Then, start the asynchronous motor 23 on the fixed bracket 22. Its output shaft drives the threaded rod 24 to rotate. Since the threaded rod 24 and the threaded block 25 are threaded together, the rotational motion is converted into linear movement of the threaded block 25 along the axis of the threaded rod 24. Simultaneously, one side of the threaded block 25 is fixedly connected to the sliding element of the slide rail 26. The guiding effect of the two sets of slide rails 26 ensures the smooth movement of the threaded block 25, thereby pushing the main rod 27 to move axially, achieving initial displacement adjustment. If it is necessary to change the monitoring angle, start... The first asynchronous motor 28 at the end of the main rod 27 drives the driven rod 29 to rotate, completing the angle adjustment. When the second asynchronous motor 210 at the end of the driven rod 29 is started, its output shaft drives the third asynchronous motor 211 to rotate as a whole, achieving further angle adjustment. When the third asynchronous motor 211 is started, its output shaft drives the U-shaped frame 212 and the disc 213 to rotate, causing the temperature sensor 214 (which acquires the internal temperature value of the installation space), the smoke alarm 215 (which senses whether there is smoke), and the camera 216 (which monitors the internal environment of the installation space) fixed on the disc 213 to perform further angle adjustments. Through coordinated actions, a multi-axis adjustment system is formed to ensure that the monitoring elements can cover more angles in three-dimensional space and accurately capture risk signals from all directions of the thermal power equipment.
[0039] In one embodiment of this utility model, an auxiliary component 3 is provided on the outside of the mounting frame 1. The auxiliary component 3 includes a servo motor 31. The servo motor 31 is fixedly installed on the center of the side of the disc 213 near the U-shaped frame 212. A rotating shaft 32 is fixedly installed on the output end of the servo motor 31. The outer wall of the rotating shaft 32 is fixedly installed on the center of the inside of the circular frame 33. An arc plate 34 is fixedly installed on the circular frame 33. Six sets of arc plates 34 are arranged, and the six sets of arc plates 34 are all arranged in a circumferential array with the center of the circular cross section of the circular frame 33 as the array center, so as to better dissipate heat and remove dust. In addition, the two ends of the auxiliary telescopic rod 35 are hinged between the main rod 27 and the slave rod 29, so that the swing of the slave rod 29 is more stable. In addition, a protective cover 36 is snapped on the outside of the fixing frame 22. A through transverse groove 37 is opened on the protective cover 36. The threaded block 25 passes through the transverse groove 37 to better protect the internal structure of the protective cover 36.
[0040] In this embodiment, when the servo motor 31 in the auxiliary component 3 is started, its output shaft drives the rotating shaft 32 to rotate. The circular frame 33 fixed on the rotating shaft 32 rotates accordingly, and the six sets of equally spaced circular arrays of arc plates 34 rotate synchronously at high speed, generating directional airflow. On the one hand, the airflow blows on the surfaces of the temperature sensor 214, smoke alarm 215, and camera 216, accelerating air convection on the surface of the components and reducing heat accumulation caused by long-term operation; on the other hand, the impact force of the airflow removes dust and other impurities attached to the housings of these monitoring components, preventing dust accumulation from affecting detection accuracy and image clarity. When the lever 29 is driven by the first asynchronous motor 28... During downward rotation, the auxiliary telescopic rod 35 between the main rod 27 and the driven rod 29 will automatically extend and retract according to the rotation angle. The two ends of the auxiliary telescopic rod 35 are respectively hinged to the main rod 27 and the driven rod 29. Through its own telescopic movement, it ensures the stability of the driven rod 29 during rotation. At the same time, the protective cover 36 outside the fixed frame 22 can effectively prevent dust and other impurities from entering the external environment. The transverse groove 37 opened on its surface is a reserved channel for the movement of the threaded block 25. This ensures that the threaded block 25 moves normally along the threaded rod 24 and prevents dust from accumulating in the threaded groove of the threaded rod 24, maintaining the smooth operation of the transmission mechanism, thereby ensuring the long-term stable operation of the entire equipment and improving its practicality.
[0041] All electrical components mentioned in this application are electrically connected to the PLC controller, control terminal, and 220V AC mains power. The PLC controller is a conventional and known device capable of controlling the asynchronous motor 23, the first asynchronous motor 28, the second asynchronous motor 210, the third asynchronous motor 211, the temperature sensor 214, the smoke alarm 215, the camera 216, and the servo motor 31. The asynchronous motor 23, the first asynchronous motor 28, the second asynchronous motor 210, the third asynchronous motor 211, and the servo motor 31 are all self-locking motors. All standard parts used in this application can be purchased from the market. The specific connection methods of each part are all conventional methods such as riveting and welding, which are mature in the prior art. The machinery, parts, and equipment are all conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.
[0042] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.
Claims
1. A fire risk identification and alarm device comprising a mounting bracket (1), characterised in that: The mounting bracket (1) is provided with a movable component (2), the movable component (2) comprising: The self-locking telescopic rod (21) is fixedly connected to the fixed end of the self-locking telescopic rod (21) on the outer wall of the mounting frame (1). The piston end of the self-locking telescopic rod (21) is fixedly mounted with a fixed frame (22). The outer wall of the fixed frame (22) is fixedly mounted with an asynchronous motor (23). The output end of the asynchronous motor (23) is fixedly mounted with a threaded rod (24). The two ends of the threaded rod (24) are rotatably mounted inside the fixed frame (22) through bearing components. The threaded rod (24) is threaded with a threaded block (25). The fixed frame (22) is also fixedly mounted with a slide rail (26). One side of the threaded block (25) is fixedly mounted on the sliding component of the slide rail (26). The main rod (27) is fixedly connected to one end of the threaded block (25) on the other side. A first asynchronous motor (28) is fixedly installed on the other end of the main rod (27). A slave rod (29) is fixedly installed on the outside of the output shaft of the first asynchronous motor (28). A second asynchronous motor (210) is fixedly installed on the other end of the slave rod (29). A third asynchronous motor (211) is fixedly installed on the outside of the output shaft of the second asynchronous motor (210). The output shaft of the third asynchronous motor (211) is fixedly connected to the center of one end of the U-shaped frame (212). The disc (213) is fixedly installed at one end of the U-shaped frame (212), and a monitoring element is provided at the other end of the disc (213).
2. The device according to claim 1, characterized in that: The self-locking telescopic rod (21) is provided in multiple sets.
3. The device according to claim 1, characterized in that: The slide rail (26) is provided in two sets.
4. The device according to claim 1, characterized in that: The monitoring components include a temperature sensor (214), a smoke alarm (215), and a camera (216), all of which are fixedly installed on the outer wall of the disc (213).
5. The device according to claim 4, characterized in that: The temperature sensor (214), smoke alarm (215), and camera (216) are provided in two sets.
6. The thermal risk identification and alarm device according to claim 5, characterized in that: The two sets of temperature sensors (214), smoke detectors (215) and cameras (216) are all arranged in an equally spaced, staggered circular array with the center of the circular cross-section of the disk (213) as the array center.
7. The device according to claim 1, characterized in that: The mounting frame (1) is provided with an auxiliary component (3) on its exterior. The auxiliary component (3) includes a servo motor (31). The servo motor (31) is fixedly installed on the center of the side of the disc (213) near the U-shaped frame (212). A rotating shaft (32) is fixedly installed at the output end of the servo motor (31). The outer wall of the rotating shaft (32) is fixedly installed at the center inside the circular frame (33). An arc plate (34) is fixedly installed on the circular frame (33).
8. The thermal risk identification and alarm device according to claim 7, characterized in that: The arc-shaped plate (34) is provided in multiple sets.
9. The device according to claim 8, characterized in that: The main rod (27) and the secondary rod (29) are hinged together at both ends of an auxiliary telescopic rod (35).
10. The thermal risk identification and alarm device according to claim 9, characterized in that: The fixing frame (22) is externally attached to a protective cover (36), and the protective cover (36) has a through transverse groove (37), and the threaded block (25) passes through the transverse groove (37).
Citation Information
Patent Citations
Auxiliary alarm device for thermal power plant
CN217762785U