A boiler combustion pressure early warning device
By using an adjustable winding shaft structure and a protective unit to safeguard the sensor cables, flexible monitoring of boiler combustion pressure and flame is achieved, solving the adaptability and reliability issues of traditional devices and improving detection accuracy and early warning capabilities.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG GUOHUA ZHENENG POWER GENERATION CO LTD
- Filing Date
- 2025-06-18
- Publication Date
- 2026-06-23
AI Technical Summary
The sensor position of traditional boiler pressure early warning devices is not adjustable, making it difficult to adapt to different boiler structures or monitoring point requirements. Furthermore, they are easily damaged in high-temperature and dusty environments, affecting detection accuracy and signal transmission reliability.
An adjustable rewinding shaft structure enables flexible telescopic positioning of the detector. Combined with a protective unit to protect the sensor cable, it integrates dual pressure and flame monitoring functions. Through data analysis by a processor, it links the audible and visual alarm and the wireless transmission module to achieve dual local and remote early warning.
It improves detection accuracy, ensures stable operation of the sensor in harsh environments, avoids deflagration or flameout accidents caused by abnormal flames, and ensures timely early warning through real-time data display and wireless transmission.
Smart Images
Figure CN224397779U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of pressure early warning devices, specifically a boiler combustion pressure early warning device. Background Technology
[0002] In recent years, with the rapid development of renewable energy, significant changes have occurred in the power supply and power grid structures. The large-scale centralized grid connection of new energy sources has increased the difficulty of peak shaving for the power grid. The interests of power ancillary services have become increasingly complex. To address these issues, ensure a secure power supply, and significantly increase the proportion of renewable energy consumption, the government has successively introduced relevant policies to promote the flexibility transformation of thermal power plants and strengthen the peak shaving capacity of the power system to improve its flexibility and stability. During boiler combustion, real-time monitoring of pressure and flame status is crucial for ensuring the safe operation of equipment.
[0003] Traditional boiler pressure early warning devices have fixed sensor positions, making it difficult to adapt to different boiler structures or monitoring point requirements, resulting in limited detection accuracy. High temperature and dusty environments can easily damage the sensors or affect signal transmission, reducing the reliability of the device. To address this, we propose a boiler combustion pressure early warning device. Utility Model Content
[0004] The technical problem this invention aims to solve is to overcome existing defects and provide a boiler combustion pressure early warning device. This device utilizes an adjustable retractable shaft structure to achieve flexible telescopic positioning of the detector, adapting to different monitoring needs. It employs a protective unit to safeguard the sensor cable, and combines heat dissipation holes and a dustproof net to ensure stable operation in harsh environments. It integrates dual pressure and flame monitoring functions, and through data analysis by a processor, it links an audible and visual alarm with a wireless transmission module to achieve both local and remote early warning, effectively solving the problems in the background technology.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a boiler combustion pressure early warning device, comprising a housing and a display screen;
[0006] Housing: A housing cover is hinged to the top surface, the display screen is fixed to the front side of the housing cover, heat dissipation holes are evenly opened on the left and right sides of the housing, the processor is fixed inside the housing, and an adjustment unit is provided on the bottom surface of the housing. A multispectral flame detector and a pressure sensor are respectively installed inside the adjustment unit.
[0007] The device also includes a controller located on the right side of the housing. The output terminals of the multispectral flame detector and the pressure sensor are electrically connected to the input terminal of the processor. The input terminals of the processor and the display screen are electrically connected to the output terminal of the controller. The input terminal of the controller is electrically connected to the output terminal of an external power supply.
[0008] The multispectral flame detectors are equipped to measure multiple parameters in real time, such as flame temperature, ignition distance, combustion stability, and the three-dimensional visualized temperature field of the entire furnace. This prevents deflagration or flameout accidents caused by abnormal flames. The pressure sensor can detect the internal pressure of the boiler during combustion to prevent excessive pressure from causing an explosion or excessive pressure from causing a decrease in combustion efficiency. The detection data is then processed and displayed on the screen for easy viewing by personnel.
[0009] Furthermore, the adjustment unit includes a placement slot, a partition, a winding shaft, a transmission gear, a gear, a motor, and a connecting optical fiber. The placement slot is located on the bottom surface of the housing, and a partition is fixed inside the placement slot. A winding shaft is rotatably mounted on both sides of the partition. The connecting optical fiber is wound around the outside of the winding shaft, and a gear is fixed to the outside of the winding shaft. There are two motors, each fixed to one of the left or right sides of the housing. The output shaft of the motor is connected to the transmission gear, and the transmission gear meshes with the gear. The two ends of the connecting optical fiber on the left are electrically connected to the processor and the multispectral flame detector, respectively. The two ends of the connecting optical fiber on the right are electrically connected to the processor and the pressure sensor, respectively. A protective unit is provided on the outside of the connecting optical fiber. The input end of the motor is electrically connected to the output end of the controller. Starting the motor drives the transmission gear to mesh with the gear, causing the winding shaft to rotate. This allows for the winding and unwinding of the connecting optical fiber, facilitating the adjustment of the positions of the multispectral flame detector and the pressure sensor to adapt to the positional requirements of different boiler monitoring points and improve detection accuracy.
[0010] Furthermore, the protective unit includes a mounting base, vent holes, fixing bolts, a dustproof mesh, a mesh frame, and a protective shell. The mounting base is slidably installed on the outside of the connecting optical fiber, and the outside of the mounting base is correspondingly engaged with the inside of the protective shell. Ventilation holes are evenly distributed on the surface of the protective shell. The fixing bolts pass through the through holes on the surface of the protective shell and are threaded into the screw holes on the surface of the mounting base. There are two mesh frames, which are fixed on both sides of the surface of the protective shell. Dustproof meshes are inserted into the inside of the mesh frames. The protective shell is installed on the outside of the mounting base using fixing bolts. The protective shell, together with the dustproof meshes on both sides, can protect the pressure sensor to prevent dust from entering and affecting the accuracy of subsequent detection.
[0011] Furthermore, it also includes a screw, an adjustment groove, and a locking frame. There are two adjustment grooves, which are respectively opened at both ends of the front side of the housing. The screw is rotatably installed inside the adjustment groove. The screw is threadedly connected to the screw hole on the surface of the locking frame. The locking frame is slidably installed inside the adjustment groove. Rotating the screw makes the locking frame lock onto the surface of the housing cover, which facilitates quick disassembly, assembly, and maintenance by personnel.
[0012] Furthermore, it also includes a wireless transmitter, which is placed on the bottom surface inside the housing. The output of the wireless transmitter is electrically connected to the input of the controller. The wireless transmitter can transmit the detected data to the personnel's electronic devices in real time for easy viewing and adjustment.
[0013] Furthermore, it also includes an audible and visual alarm, of which there are two and are respectively installed on the top of the left and right sides of the housing. The input of the audible and visual alarm is electrically connected to the output of the controller. The audible and visual alarm can flash an alarm in time to remind personnel when a problem is detected.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This boiler combustion pressure early warning device has the following advantages:
[0015] 1. The multispectral flame detectors provide real-time measurement of key parameters such as flame temperature, ignition distance, and combustion stability, as well as the three-dimensional visualized temperature field of the entire furnace. This prevents deflagration or flameout accidents caused by abnormal flames. The pressure sensor detects the internal pressure of the boiler during combustion to prevent excessive pressure from causing an explosion or excessive pressure from causing a decrease in combustion efficiency. The data is then processed and displayed on the screen for easy viewing by personnel.
[0016] 2. The winding shaft is rotated by starting the motor and driving the transmission gears to mesh with the gears. This allows for the winding and unwinding of the connected optical fiber, which facilitates the adjustment of the position of the multispectral flame detector and pressure sensor to meet the location requirements of different boiler monitoring points and improve detection accuracy. The protective shell, together with the dustproof nets on both sides, can protect the pressure sensor to prevent dust from entering and affecting the accuracy of subsequent detection. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the adjustment unit structure of this utility model;
[0019] Figure 3 This utility model Figure 2 A magnified schematic diagram of the structure at point A in the middle.
[0020] In the diagram: 1. Housing, 2. Adjustment unit, 21. Placement slot, 22. Partition, 23. Rewind shaft, 24. Transmission gear, 25. Gear, 26. Motor, 27. Connecting optical fiber, 3. Protective unit, 31. Fixing base, 32. Ventilation hole, 33. Fixing bolt, 34. Dustproof net, 35. Net frame, 36. Protective shell, 4. Shell cover, 5. Heat dissipation hole, 6. Processor, 7. Multispectral flame detector, 8. Pressure sensor, 9. Display screen, 10. Screw, 11. Adjustment slot, 12. Locking frame, 13. Wireless transmitter, 14. Audible and visual alarm, 15. Controller. Detailed Implementation
[0021] 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.
[0022] Please see Figure 1-3 This embodiment provides a technical solution: a boiler combustion pressure early warning device, including a housing 1 and a display screen 9;
[0023] Housing 1: A cover 4 is hinged to the top surface. A display screen 9 is fixed to the front side of the cover 4. Heat dissipation holes 5 are evenly distributed on the left and right sides of the housing 1. A processor 6 is fixed inside the housing 1. An adjustment unit 2 is provided on the bottom surface of the housing 1. A multispectral flame detector 7 and a pressure sensor 8 are respectively installed inside the adjustment unit 2. The adjustment unit 2 includes a placement slot 21, a partition 22, a winding shaft 23, a transmission gear 24, a gear 25, a motor 26, and a connecting optical fiber 27. The placement slot 21 is located on the bottom surface of the housing 1. A partition 22 is fixed inside the placement slot 21. Both sides of housing 2 are rotatably mounted with a winding shaft 23. An optical fiber 27 is wound around the outside of the winding shaft 23. A gear 25 is fixed to the outside of the winding shaft 23. Two motors 26 are fixed to the left and right sides of housing 1 respectively. The output shaft of the motor 26 is connected to a transmission gear 24, which meshes with the gear 25. The two ends of the connecting optical fiber 27 on the left are electrically connected to the processor 6 and the multispectral flame detector 7, respectively. The two ends of the connecting optical fiber 27 on the right are electrically connected to the processor 6 and the pressure sensor 8, respectively. The outside of the connecting optical fiber 27 is protected against... The input terminal of the motor 26 in the protection unit 3 is electrically connected to the output terminal of the controller 15. Starting the motor 26 drives the transmission gears 24 and 25 to mesh, causing the take-up shaft 23 to rotate. This allows for the winding and unwinding of the connecting optical fiber 27, facilitating the adjustment of the positions of the multispectral flame detector 7 and the pressure sensor 8 to adapt to the location requirements of different boiler monitoring points and improve detection accuracy. The protection unit 3 includes a fixing base 31, a vent 32, fixing bolts 33, a dustproof net 34, a mesh frame 35, and a protective shell 36. The fixing base 31 is slidably installed on the outside of the connecting optical fiber 27 for fixation. The outer side of the base 31 is snapped into the inner side of the protective shell 36. Ventilation holes 32 are evenly distributed on the surface of the protective shell 36. The fixing bolts 33 are threaded through the through holes on the surface of the protective shell 36 and the screw holes on the surface of the fixing base 31. There are two mesh frames 35, which are fixed on both sides of the surface of the protective shell 36 respectively. Dustproof mesh 34 is inserted into the inside of the mesh frame 35. The protective shell 36 is installed on the outside of the fixing base 31 using the fixing bolts 33. The protective shell 35, together with the dustproof mesh 34 on both sides, can protect the pressure sensor 8 to prevent dust from entering and affecting the accuracy of subsequent detection.
[0024] The system also includes a controller 15, located on the right side of the housing 1. The outputs of the multispectral flame detector 7 and the pressure sensor 8 are electrically connected to the input of the processor 6. The inputs of the processor 6 and the display screen 9 are electrically connected to the output of the controller 15. The input of the controller 15 is electrically connected to the output of an external power supply. The multispectral flame detector 7 measures multiple parameters in real time, including flame temperature, ignition distance, combustion stability, and a three-dimensional visualized temperature field of the entire furnace, preventing deflagration or flameout accidents caused by abnormal flames. The pressure sensor 8 detects the internal pressure during boiler combustion to prevent excessive pressure from causing an explosion or excessive pressure from reducing combustion efficiency. The processor 6 displays the detected data on the display screen 9 for easy viewing. The system also includes a screw 10, an adjusting groove 11, and a locking frame 12. The adjusting groove 11 has two... The adjustment groove 11 is rotatably installed with screws 10 on both ends of the front side of the housing 1. The screws 10 are threadedly connected to the screw holes on the surface of the locking frame 12. The locking frame 12 is slidably installed inside the adjustment groove 11. Rotating the screws 10 makes the locking frame 12 lock onto the surface of the housing 4, which facilitates quick disassembly and maintenance. The housing 12 also includes a wireless transmitter 13, which is placed on the bottom inside the housing 1. The output of the wireless transmitter 13 is electrically connected to the input of the controller 15. The wireless transmitter 13 can transmit the detected data to the personnel's electronic devices in real time for easy viewing and adjustment. The housing 13 also includes two audible and visual alarms 14, which are installed on the top of the left and right sides of the housing 1. The input of the audible and visual alarms 14 is electrically connected to the output of the controller 15. The audible and visual alarms 14 can flash an alarm to alert personnel when a problem is detected.
[0025] The working principle of the boiler combustion pressure early warning device provided by this utility model is as follows: First, the housing 1 is installed on the outside of the boiler. The motor 26 is started to drive the transmission gear 24 and gear 25 to mesh, thereby rotating the winding shaft 23. This allows for the winding and unwinding of the connecting optical fiber 27, facilitating the adjustment of the positions of the multispectral flame detector 7 and the pressure sensor 8 to adapt to the positional requirements of different boiler monitoring points and improve detection accuracy. The protective shell 36 is installed on the outside of the fixing base 31 using fixing bolts 33. The protective shell 36, together with the dustproof nets 34 on both sides, can protect the pressure sensor 8 to prevent dust from entering and affecting the accuracy of subsequent detection. The multispectral... The flame detector 7 measures multiple parameters in real time, including flame temperature, ignition distance, combustion stability, and a three-dimensional visualized temperature field of the entire furnace, preventing deflagration or flameout accidents caused by abnormal flames. The pressure sensor 8 detects the internal pressure of the boiler during combustion to prevent excessive pressure from causing an explosion or excessive pressure from causing a decrease in combustion efficiency. The processor 6 displays the detected data on the display screen 9 for easy viewing. At the same time, the line transmitter 13 can transmit the detected data to the personnel's electronic devices in real time. Finally, the screw 10 is rotated to lock the locking bracket 12 onto the surface of the cover 4, which facilitates quick disassembly and maintenance.
[0026] It is worth noting that the controller 15 disclosed in the above embodiments is provided with buttons on its surface that correspond to and control the motor 26, processor 6, multispectral flame detector 7, pressure sensor 8, display screen 9, wireless transmitter 13, and audible and visual alarm 14, respectively. The controller 15 controls the operation of the motor 26, processor 6, multispectral flame detector 7, pressure sensor 8, display screen 9, wireless transmitter 13, and audible and visual alarm 14 using methods commonly used in the prior art.
[0027] 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 boiler combustion pressure early warning device, characterized in that: Includes a housing (1) and a display screen (9); Housing (1): A cover (4) is hinged to the top surface. The display screen (9) is fixed to the front side of the cover (4). Heat dissipation holes (5) are evenly opened on the left and right sides of the housing (1). The processor (6) is fixed inside the housing (1). An adjustment unit (2) is provided on the bottom surface of the housing (1). A multispectral flame detector (7) and a pressure sensor (8) are installed inside the adjustment unit (2). The system also includes a controller (15), which is located on the right side of the housing (1). The output terminals of the multispectral flame detector (7) and the pressure sensor (8) are electrically connected to the input terminal of the processor (6). The input terminals of the processor (6) and the display screen (9) are electrically connected to the output terminal of the controller (15). The input terminal of the controller (15) is electrically connected to the output terminal of an external power supply.
2. The boiler combustion pressure early warning device according to claim 1, characterized in that: The adjustment unit (2) includes a placement slot (21), a partition (22), a winding shaft (23), a transmission gear (24), a gear (25), a motor (26), and a connecting optical fiber (27). The placement slot (21) is opened on the bottom surface of the housing (1). The partition (22) is fixed inside the placement slot (21). The winding shaft (23) is rotatably installed on both the left and right sides of the partition (22). The connecting optical fiber (27) is wound around the outside of the winding shaft (23). A protective unit (3) is provided on the outside of the connecting optical fiber (27). The input end of the motor (26) is electrically connected to the output end of the controller (15).
3. The boiler combustion pressure early warning device according to claim 2, characterized in that: The protective unit (3) includes a fixing seat (31), a vent (32), a fixing bolt (33), a dustproof net (34), a mesh frame (35), and a protective shell (36). The fixing seat (31) is slidably installed on the outside of the connecting optical fiber (27), and the outside of the fixing seat (31) is correspondingly engaged with the inside of the protective shell (36).
4. The boiler combustion pressure early warning device according to claim 1, characterized in that: It also includes a screw (10), an adjustment groove (11) and a locking frame (12). There are two adjustment grooves (11) and they are respectively opened at both ends of the front side of the housing (1). The screw (10) is rotatably installed inside the adjustment groove (11). The screw (10) is threadedly connected to the screw hole on the surface of the locking frame (12). The locking frame (12) is slidably installed inside the adjustment groove (11).
5. A boiler combustion pressure early warning device according to claim 1, characterized in that: It also includes a wireless transmitter (13), which is placed on the bottom surface inside the housing (1), and the output of the wireless transmitter (13) is electrically connected to the input of the controller (15).
6. The boiler combustion pressure early warning device according to claim 1, characterized in that: It also includes an audible and visual alarm (14), of which there are two and are respectively installed on the top of the left and right sides of the housing (1), and the input of the audible and visual alarm (14) is electrically connected to the output of the controller (15).
7. A boiler combustion pressure early warning device according to claim 2, characterized in that: A gear (25) is fixed on the outside of the winding shaft (23). There are two motors (26) and they are fixed on the left and right sides of the housing (1) respectively. The output shaft of the motor (26) is connected to the transmission gear (24), and the transmission gear (24) meshes with the gear (25).
8. A boiler combustion pressure early warning device according to claim 7, characterized in that: The two ends of the connecting optical fiber (27) on the left are electrically connected to the processor (6) and the multispectral flame detector (7), respectively, and the two ends of the connecting optical fiber (27) on the right are electrically connected to the processor (6) and the pressure sensor (8), respectively.
9. A boiler combustion pressure early warning device according to claim 3, characterized in that: The protective shell (36) has ventilation holes (32) evenly distributed on its surface. The fixing bolt (33) passes through the through hole on the surface of the protective shell (36) and is threaded into the screw hole on the surface of the fixing seat (31).
10. A boiler combustion pressure early warning device according to claim 9, characterized in that: There are two mesh frames (35) and they are fixed on both sides of the surface of the protective shell (36). A dustproof net (34) is inserted inside the mesh frame (35).