A boiler tail heating surface ash collapse monitoring device and early warning method

Abstract

The present invention discloses a device for monitoring ash collapse on the rear heating surface of a boiler and an early warning method, which belongs to the technical field of boiler monitoring. The device comprises a monitoring unit and a control unit. When the overall structure of the adjustment mechanism is not contracted or expanded, the two groups of first temperature sensors are connected to the inner cavity of the second temperature sensor, so that the temperature of different areas in the boiler can be evenly transmitted through the first temperature sensor and the second temperature sensor, providing stable heat data for subsequent adjustment and monitoring. The overall adjustment mechanism is dynamically adjusted through movable joints. The early warning mechanism is provided with multiple groups in the boiler to contact the heating surface of the boiler, and can timely sense the body temperature of the boiler inner wall and the temperature of ash accumulation or attachments in time during heat early warning. It can monitor the temperature changes of the boiler inner wall and its surface attachments in real time, and provide early warning when overheating or ash accumulation problems occur, avoiding equipment damage or reduced operating efficiency caused by abnormal temperature.

Description

Technical Field

[0001] The present invention relates to the technical field of boiler monitoring, and in particular to a ash collapse monitoring device and an early warning method for a boiler rear heating surface. Background Art

[0002] A boiler is a device that generates heat by burning fuel (such as coal, natural gas, or oil) or utilizing other energy sources (such as electricity or solar energy). This heat is then used to heat water or other liquids to produce steam, hot water, or hot air. Boilers are widely used in power generation, heating, and industrial production. The heat generated by burning fuel heats water to boiling point, generating steam or hot water. This steam or hot water can then be used to drive generators for power generation, heating, or industrial processes. The exhaust gases from the fuel combustion are discharged through a flue, and the heat carried in the flue gases is typically recovered and reused to improve the boiler's thermal efficiency.

[0003] During the use of the boiler, it is necessary to monitor the temperature and ash accumulation on the rear heating surface in real time. The monitoring devices currently available on the market cannot simultaneously alarm when the temperature is abnormal and clean the ash accumulation at the rear of the boiler. Therefore, a ash collapse monitoring device and early warning method for the rear heating surface of the boiler are proposed. Summary of the Invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a boiler tail heating surface ash collapse monitoring device and early warning method.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A device for monitoring ash collapse on the rear heating surface of a boiler comprises a monitoring unit and a control unit. The monitoring units are mounted on both side end surfaces of the control unit. The monitoring unit comprises a monitoring shell and an assembly mechanism arranged and mounted on the inner end surface of the monitoring shell. The outer ring of the assembly mechanism is sleeved with an early warning mechanism.

[0007] The early warning mechanism includes an early warning outer tube and an adjustment mechanism installed on both sides of the inner end surface of the early warning outer tube. Second temperature sensors are arranged on both sides of the edges of one end of the early warning outer tube. The two groups of early warning outer tubes are arranged relative to each other. The second temperature sensors between the two groups of early warning outer tubes are arranged relative to each other. The second temperature sensors between the two groups of vertically arranged early warning mechanisms are relative to each other. When the early warning mechanism in any direction is subjected to high temperature or airflow impact, the distance between the two will be reduced to a certain distance. At this time, because the second temperature sensor is a component made of a magnetic material, and the second temperature sensors of the two groups of early warning mechanisms are magnetically relative, when the second temperature sensors of the two groups of early warning mechanisms attract and contact each other, the adjustment mechanism in the inner cavity of the early warning mechanism will change its shape under the drive of high temperature.

[0008] Preferably, the adjustment mechanism includes an adjustment frame and a first temperature sensor provided at a middle position of an outer end surface of the adjustment mechanism, an elastic cross member is cross-arranged between two groups of the adjustment frames, the middle position of the elastic cross member is connected by a connecting ball, one end of the connecting ball is connected to the inner end surface of the adjustment frame by a resilient member, when the adjustment frame on one side is subjected to high temperature, it will shrink toward the direction of the other group of adjustment frames through the elastic cross member and the connecting ball as a movable joint, such a design enables the structure of the adjustment mechanism to flexibly respond to changes in the internal temperature of the boiler and automatically adjust its position to adapt to different temperature zones; when the position is adjusted between the two groups of adjustment frames, the inner cavities of one group of the first temperature sensor and the second temperature sensor are always kept in a connected state, such connectivity ensures that the internal temperature of the boiler can be continuously transmitted to the structure of the adjustment mechanism, thereby realizing temperature sensing and heat exchange;

[0009] When the overall structure of the adjustment mechanism is not contracting or expanding, the two sets of first temperature sensors are connected to the inner cavity of the second temperature sensor, so that the temperature of different areas in the boiler can be evenly transmitted through the first temperature sensor and the second temperature sensor, providing stable thermal data for subsequent adjustment and monitoring;

[0010] The overall adjustment mechanism is dynamically adjusted through movable joints. While maintaining communication with the temperature in the boiler, it can make real-time adjustments based on the heat distribution in the boiler, ensuring the reliability and adaptability of the device under different working conditions.

[0011] In addition, the early warning mechanism is provided with multiple groups in the boiler that are in contact with the heating surface of the boiler, and can timely sense the body temperature of the boiler inner wall and the temperature of the ash or attachments in time during the heat warning, and can monitor the temperature changes of the boiler inner wall and the attachments on its surface in real time, so as to quickly provide early warning when overheating or ash accumulation problems occur, avoiding equipment damage or reduced operating efficiency caused by abnormal temperature.

[0012] Preferably, the monitoring shell includes a shell and an inner slide groove arranged on the inner end surface of the shell, and the inner cavity of the inner slide groove is interspersed with an assembly mechanism. The monitoring unit part of the overall device is inserted into the inner cavity position of the heating surface of the rear end of the boiler, so that the outer end surface of the shell is attached to the heating surface of the inner cavity wall of the rear end of the boiler. At this time, the assembly mechanism and the early warning mechanism attached to the other inner cavity wall of the heating surface are both in the necessary path for heat flow discharge.

[0013] Preferably, the assembly mechanism includes a first ring belt and a series block installed on the first ring belt and connected to one end of the first ring belt, the other end of the series block is connected in series with the second ring belt, and a linkage combination structure of the first ring belt, the series block and the second ring belt is set. The linkage combination of the first ring belt, the series block and the second ring belt is tightly connected to form a whole, which reduces the looseness or misalignment between the parts and significantly improves the stability of the device during operation. The linkage structure can evenly transmit the force or pressure generated during operation, avoid a single component from being subjected to excessive stress, thereby reducing the risk of damage and improving the durability of the device. The combined structural design reduces the steps during assembly, so that the first ring belt, the series block and the second ring belt can be quickly connected or disassembled, simplifying the operating process, saving time and labor costs, and the linkage structural design reduces the possibility of failure due to loosening or separation between components, ensuring the safe operation of the device under high temperature, high pressure or complex working conditions.

[0014] Preferably, the control unit includes a connecting mechanism and a reinforcing mechanism sleeved and installed in the inner cavity of the connecting mechanism, the inner cavity of the connecting mechanism is interspersed with a pushing mechanism, the connecting mechanism includes a connecting outer cylinder and ventilation cavities opened on both sides of the outer end surface of the connecting outer cylinder, the inner cavity of the connecting outer cylinder is provided with a built-in cavity, the rear end surface of the connecting outer cylinder is installed with a transverse bar, and the other end of the transverse bar is installed with a mounting cylinder, the operator holds the outer ring of the mounting cylinder and uses the connecting outer cylinder as a fulcrum to adjust the position of the monitoring unit as a whole, and makes fine adjustments to the detection position of the monitoring unit, the ventilation cavities arranged on both sides of the outer end surface of the connecting outer cylinder can receive wall wind at the gap between the inner wall of the boiler and the equipment, when the wall wind enters the inner cavity of the transparent cavity from the built-in cavity at one end, at this time, due to the airflow flowing in the inner cavity of the transparent cavity, when the airflow pushes the sliding temperature sensor block to move with the matching axis as the path, the airflow intensity of the wall wind at this time can be inferred by the pushing distance of the sliding temperature sensor block, the airflow intensity of the wall wind can be accurately inferred, and the real-time monitoring of the wall wind inside the boiler can be realized, providing a reliable basis for the operation adjustment of the equipment;

[0015] Preferably, the connection mechanism also includes a swing frame installed at the edge position of the side end face of the connecting outer cylinder, and an inner interlaced cylinder is arranged at the interval between the two groups of the swing frames. A handpiece is installed at the other end of the swing frame. When it is necessary to clean the dust or attachments inside the boiler, air flow is sprayed into the boiler in a quasi-working state. At this time, the entire connection mechanism is disassembled and reassembled, the transverse bar and the installation cylinder are disassembled, and they are replaced with the swing frame, the inner interlaced cylinder and the handpiece. The operator holds the outer end wall of the replaced handpiece horizontally, so that the operator can use the swing frame as a swing arm to swing the monitoring unit back and forth on the inner wall of the heating surface at the rear of the boiler. The flexible operation method can ensure that the device covers more areas and the cleaning effect is more comprehensive. The vibration contact between the device and the inner wall of the heating surface at the rear of the boiler is utilized, so that the shell in the swinging state is utilized to vibrate and remove the dust or attachments.

[0016] Preferably, the reinforcement mechanism includes a reinforcement frame and a transparent cavity opened on the side end face of the reinforcement frame. The inner cavity of the reinforcement frame is laterally provided with a series of parts, and the arranged series of parts is laterally inserted into the inner cavity of the installation cylinder, which can improve the structural stability between the connection mechanism and the reinforcement mechanism. The stable structural design enables the device to maintain reliable operation in high temperature, high pressure or vibration environments, extend the service life of the equipment, and reduce the maintenance frequency. The horizontal insertion design makes the installation and disassembly of components more convenient, reduces the difficulty of operation, improves the assembly efficiency, and facilitates maintenance and inspection. Through the stability-enhanced structural design, the device can adapt to complex working conditions in boiler operation, such as high-load operation or frequent start and stop, to ensure continuous and efficient working performance.

[0017] Preferably, the pushing mechanism includes a mounting bar and a mating shaft installed between two groups of mounting bars, and a sliding temperature sensing block is sleeved on the outer ring of the mating shaft, and when the sliding temperature sensing block is subjected to too large a thrust, the sliding temperature sensing block will slide to one end and contact the side end face of the mounting bar. At this time, the position of the sliding temperature sensing block slides out of the inner cavity of the transparent cavity, so that the airflow entering the inner cavity of the transparent cavity is discharged outward, and the discharged airflow passes through the gap between the transparent cavity and the built-in cavity, thereby increasing the moving speed of the airflow, enhancing the response speed and sensitivity of the monitoring device, and enabling the airflow changes to be captured and analyzed more quickly and effectively.

[0018] An early warning method for a boiler rear heating surface ash collapse monitoring device comprises the following steps:

[0019] S1: Insert the monitoring unit of the whole device into the inner cavity of the boiler tail heating surface, so that the outer end surface of the shell is in contact with the inner cavity wall of the boiler tail heating surface. At this time, the assembly mechanism and the warning mechanism in contact with the other inner cavity wall of the heating surface are both in the necessary path for heat flow to be discharged;

[0020] S2: The operator holds the outer ring of the mounting tube and adjusts the position of the entire monitoring unit using the connecting outer tube as a fulcrum, making fine adjustments to the detection position of the monitoring unit. The ventilation chambers set on both sides of the outer end surface of the connecting outer tube can receive the wall wind at the gap between the inner wall of the boiler and the equipment. When the wall wind enters the inner cavity of the transparent cavity from the built-in cavity at one end, the airflow flows in the inner cavity of the transparent cavity. When the airflow pushes the sliding temperature sensor block to move along the matching axis, the airflow intensity at this time can be inferred by the distance the sliding temperature sensor block is pushed;

[0021] S3: When the sliding temperature sensor block is subjected to excessive thrust, it will slide toward one end and contact the side surface of the mounting bar. At this time, the sliding temperature sensor block will slide out of the inner cavity of the transparent cavity, causing the airflow entering the inner cavity of the transparent cavity to be discharged outward. The discharged airflow will pass through the gap between the transparent cavity and the built-in cavity, so that the airflow changes can be captured and analyzed.

[0022] S4: When it is necessary to clean the dust or attachments inside the boiler, an air flow is sprayed into the boiler in a quasi-working state to connect the swing frame 216 at the edge of the side end face of the outer tube 211. An inner insertion tube 217 is arranged at the interval between the two sets of swing frames 216. A handpiece 218 is installed at the other end of the swing frame 216. At this time, the entire connection mechanism 21 is disassembled and reassembled, the transverse bar 214 and the installation tube 215 are disassembled, and the swing frame 216, the inner insertion tube 217 and the handpiece 218 are used to replace them. The operator holds the outer end wall of the replaced handpiece 218 horizontally, and uses the vibration contact between the device and the inner wall of the heating surface at the rear of the boiler to vibrate and remove the dust or attachments by the shell 111 in the swinging state;

[0023] S5: When one adjustment frame is exposed to high temperatures, it contracts toward the other adjustment frame, using elastic cross members and connecting balls as a movable joint. This design allows the adjustment mechanism to flexibly respond to temperature changes within the boiler, automatically adjusting its position to accommodate different temperature zones. When adjusting between the two adjustment frames, the inner cavities of the first and second temperature sensors remain connected. This connectivity ensures that the internal temperature of the boiler is continuously transmitted to the adjustment mechanism, enabling temperature sensing and heat exchange.

[0024] S6: When the overall structure of the adjustment mechanism is not undergoing contraction or expansion, the two sets of first temperature sensors are connected to the inner cavity of the second temperature sensor, so that the temperature of different areas in the boiler can be evenly transmitted through the first temperature sensors and the second temperature sensors, providing stable thermal data for subsequent adjustment and monitoring. The overall adjustment mechanism can achieve dynamic position adjustment through the movable joint, while maintaining communication with the temperature in the boiler and being able to make real-time adjustments based on the heat distribution in the boiler, ensuring the reliability and adaptability of the device under different operating conditions;

[0025] S7: The early warning mechanism is provided with multiple groups in the boiler that are in contact with the heating surface of the boiler. When a heat warning is issued, the early warning mechanism can timely sense the temperature of the boiler inner wall and the temperature of the ash or attachments. It can monitor the temperature changes of the boiler inner wall and the attachments on its surface in real time, so as to quickly provide early warning when overheating or ash accumulation problems occur, avoiding equipment damage or reduced operating efficiency caused by abnormal temperature.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] 1. When the airflow pushes the sliding temperature sensor block to move along the matching shaft, the airflow intensity of the wall wind at this time can be inferred by the pushing distance of the sliding temperature sensor block. The airflow intensity of the wall wind can be accurately inferred, and the real-time monitoring of the wall wind inside the boiler can be achieved, providing a reliable basis for the operation adjustment of the equipment;

[0028] 2. When the sliding temperature sensor block is subjected to excessive thrust, the exhausted airflow will pass through the gap between the transparent cavity and the built-in cavity, thereby increasing the speed of the airflow, enhancing the response speed and sensitivity of the monitoring device, and enabling airflow changes to be captured and analyzed more quickly and effectively.

[0029] 3. When it is necessary to clean the dust or attachments inside the boiler, the operator holds the outer end wall of the replaced handpiece horizontally, so that the operator can use the swing frame as a swing arm to swing the monitoring unit back and forth on the inner wall of the heating surface at the rear of the boiler. The flexible operation method can ensure that the device covers more areas and the cleaning effect is more comprehensive. The device uses the vibration contact with the inner wall of the heating surface at the rear of the boiler to vibrate and remove the dust or attachments using the shell in a swinging state.

[0030] 4. The serial parts are inserted horizontally into the inner cavity of the installation tube, which can improve the structural stability between the connection mechanism and the reinforcement mechanism. The stable structural design enables the device to maintain reliable operation in high temperature, high pressure or vibration environments, extend the service life of the equipment, and reduce the maintenance frequency. The horizontal insertion design makes the installation and disassembly of components more convenient, reduces the difficulty of operation, improves the assembly efficiency, and facilitates maintenance and inspection. Through the stability-enhanced structural design, the device can adapt to complex working conditions in boiler operation, such as high-load operation or frequent start and stop, to ensure continuous and efficient working performance.

[0031] 5. The interlocking combination structure of the first ring belt, the series block and the second ring belt reduces the looseness or misalignment between the parts and significantly improves the stability of the device during operation. The interlocking structure can evenly transmit the force or pressure generated during operation, avoiding excessive stress on a single component, thereby reducing the risk of damage and improving the durability of the device. The combined structural design reduces the steps during assembly, allowing the first ring belt, the series block and the second ring belt to be quickly connected or disassembled, simplifying the operating process and saving time and labor costs. The interlocking structural design reduces the possibility of failure due to looseness or separation between components, ensuring the safe operation of the device under high temperature, high pressure or complex working conditions.

[0032] 6. When one adjustment frame is exposed to high temperature, it will contract toward the other set of adjustment frames using elastic cross pieces and connecting balls as movable joints. This design allows the adjustment mechanism to flexibly respond to changes in the boiler's internal temperature and automatically adjust its position to accommodate different temperature zones. When adjusting the position between the two adjustment frames, the inner cavities of the first and second temperature sensors are always kept connected. This connectivity ensures that the internal temperature of the boiler can be continuously transmitted to the adjustment mechanism structure, achieving temperature sensing and heat exchange.

[0033] 7. When the overall structure of the adjustment mechanism is not contracted or expanded, the two sets of first temperature sensors are connected to the inner cavity of the second temperature sensor, so that the temperature of different areas in the boiler can be evenly transmitted through the first temperature sensor and the second temperature sensor, providing stable heat data for subsequent adjustment and monitoring. The overall adjustment mechanism can achieve dynamic position adjustment through movable joints, while maintaining communication with the temperature in the boiler, and can make real-time adjustments according to the heat distribution in the boiler, ensuring the reliability and adaptability of the device under different working conditions.

[0034] 8. The early warning mechanism is equipped with multiple groups of contacts with the heating surface of the boiler, and can timely sense the temperature of the boiler inner wall and the temperature of dust or attachments in time during heat warning. It can monitor the temperature changes of the boiler inner wall and its surface attachments in real time, so as to quickly provide early warning when overheating or dust accumulation problems occur, avoiding equipment damage or reduced operating efficiency caused by abnormal temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a schematic diagram of the three-dimensional structure of a boiler tail heating surface ash collapse monitoring device proposed by the present invention;

[0036] Figure 2 This is a schematic diagram of the overall structure of a boiler tail heating surface ash collapse monitoring device proposed by the present invention;

[0037] Figure 3 This is a schematic diagram of the connection mechanism structure of a boiler tail heating surface ash collapse monitoring device proposed by the present invention;

[0038] Figure 4 This is a schematic diagram of the structure of the reinforcement mechanism of the boiler tail heating surface ash collapse monitoring device proposed by the present invention;

[0039] Figure 5 This is a schematic diagram of the structure of the driving mechanism of the boiler tail heating surface ash collapse monitoring device proposed by the present invention;

[0040] Figure 6 This is a schematic diagram of the monitoring shell structure of a boiler tail heating surface ash collapse monitoring device proposed by the present invention;

[0041] Figure 7 This is a schematic diagram of the assembly structure of a boiler tail heating surface ash collapse monitoring device proposed by the present invention;

[0042] Figure 8 This is a schematic diagram of the structure of the early warning mechanism of a boiler tail heating surface ash collapse monitoring device proposed by the present invention;

[0043] Figure 9 This is a schematic structural diagram of the adjustment mechanism of a boiler tail heating surface ash collapse monitoring device proposed by the present invention.

[0044] In the figure: 1, monitoring unit; 11, monitoring shell; 111, shell; 112, inner slide; 12, assembly mechanism; 121, first ring belt; 122, series block; 123, second ring belt; 13, warning mechanism; 131, warning outer cylinder; 132, adjustment mechanism; 1321, adjustment frame; 1322, first temperature sensor; 1323, elastic cross member; 1324, connecting ball; 1325, rebound member; 133, second temperature sensor Sensor; 2. Control unit; 21. Connecting mechanism; 211. Connecting outer cylinder; 212. Ventilation cavity; 213. Built-in cavity; 214. Horizontal bar; 215. Mounting cylinder; 216. Swinging frame; 217. Inner insertion cylinder; 218. Hand piece; 22. Reinforcement mechanism; 221. Reinforcement frame; 222. Transparent cavity; 223. Series component; 23. Pushing mechanism; 231. Mounting horizontal bar; 232. Matching shaft; 233. Sliding temperature sensor block. DETAILED DESCRIPTION

[0045] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0046] Reference Figures 1-9 Embodiment 1: A device for monitoring ash collapse on the rear heating surface of a boiler comprises a monitoring unit 1 and a control unit 2. The monitoring units 1 are mounted on both side end surfaces of the control unit 2. The monitoring unit 1 comprises a monitoring shell 11 and an assembly mechanism 12 arranged and mounted on the inner end surface of the monitoring shell 11. The outer ring of the assembly mechanism 12 is sleeved with an early warning mechanism 13.

[0047] The early warning mechanism 13 includes an early warning outer tube 131 and an adjustment mechanism 132 installed on both sides of the inner end surface of the early warning outer tube 131. Second temperature sensors 133 are set on the edges of both sides of one end of the early warning outer tube 131. The two groups of early warning outer tubes 131 are arranged relative to each other. The second temperature sensors 133 between the two groups of early warning outer tubes 131 are arranged relative to each other. The second temperature sensors 133 between the two groups of vertically arranged early warning mechanisms 13 are relative to each other. When the early warning mechanism 13 in any direction is subjected to high temperature or airflow impact, the distance between the two will be reduced to a certain distance. At this time, because the second temperature sensor 133 is a component made of a magnetic material, and the second temperature sensors 133 of the two groups of early warning mechanisms 13 are magnetically relative, when the second temperature sensors 133 of the two groups of early warning mechanisms 13 attract and contact each other, the adjustment mechanism 132 in the inner cavity of the early warning mechanism 13 will change its shape under the drive of high temperature.

[0048] In a second embodiment, the adjustment mechanism 132 includes an adjustment frame 1321 and a first temperature sensor 1322 provided at a middle position on an outer end surface of the adjustment mechanism 132. An elastic cross member 1323 is intersected between two groups of the adjustment frames 1321. The middle position of the elastic cross member 1323 is connected by a connecting ball 1324. One end of the connecting ball 1324 is connected to the inner end surface of the adjustment frame 1321 via a resilient member 1325. When the adjustment frame 1321 on one side is subjected to high temperature, it will contract toward the other group of adjustment frames 1321 through the elastic cross member 1323 and the connecting ball 1324 as a movable joint. This design enables the structure of the adjustment mechanism 132 to flexibly respond to changes in the internal temperature of the boiler and automatically adjust its position to adapt to different temperature zones. When the position between the two groups of adjustment frames 1321 is adjusted, the inner cavities of one group of the first temperature sensor 1322 and the second temperature sensor 133 are always kept in a connected state. This connectivity ensures that the internal temperature of the boiler can be continuously transmitted to the structure of the adjustment mechanism 132, realizing temperature sensing and heat exchange.

[0049] In Example 3, when the overall structure of the adjustment mechanism 132 is not contracting or expanding, the two sets of first temperature sensors 1322 are connected to the inner cavity of the second temperature sensor 133, so that the temperature of different areas in the boiler can be evenly transmitted through the first temperature sensors 1322 and the second temperature sensors 133, providing stable thermal data for subsequent adjustment and monitoring;

[0050] In Example 4, the entire adjustment mechanism 132 is dynamically adjusted in position through movable joints. While maintaining communication with the temperature in the boiler, it can be adjusted in real time according to the heat distribution in the boiler, ensuring the reliability and adaptability of the device under different working conditions.

[0051] In embodiment 5, the early warning mechanism 13 is provided with multiple groups in the boiler to contact the heating surface of the boiler, and can timely sense the body temperature of the boiler inner wall and the temperature of the ash or attachments in time during the heat warning, and can monitor the temperature changes of the boiler inner wall and the attachments on its surface in real time, so as to quickly provide an early warning when overheating or ash accumulation problems occur, thereby avoiding equipment damage or reduced operating efficiency caused by abnormal temperature.

[0052] Example 6, the monitoring shell 11 includes a shell 111 and an inner slide groove 112 arranged on the inner end surface of the shell 111, and the inner cavity of the inner slide groove 112 is interspersed with an assembly mechanism 12, and the monitoring unit 1 part of the overall device is inserted into the inner cavity position of the heating surface of the rear end of the boiler, so that the outer end surface of the shell 111 is in contact with the heating surface of the inner cavity wall of the rear end of the boiler. At this time, the assembly mechanism 12 and the early warning mechanism 13 in contact with the other inner cavity wall of the heating surface are both in the necessary path for heat flow discharge.

[0053] Example 7, the assembly mechanism 12 includes a first ring belt 121 and a series block 122 installed on the first ring belt 121 and connected to one end of the first ring belt 121, the other end of the series block 122 is connected in series with the second ring belt 123, and a linked combination structure of the first ring belt 121, the series block 122 and the second ring belt 123 is set. The linked combination of the first ring belt 121, the series block 122 and the second ring belt 123 is tightly connected to form a whole, which reduces the looseness or misalignment between the parts and significantly improves the stability of the device during operation. The linked structure can evenly transmit the force or pressure generated during operation, avoid a single component from being subjected to excessive stress, thereby reducing the risk of damage and improving the durability of the device. The combined structural design reduces the steps during assembly, so that the first ring belt 121, the series block 122 and the second ring belt 123 can be quickly connected or disassembled, simplifying the operating process, saving time and labor costs, and the linked structural design reduces the possibility of failure caused by looseness or separation between components, ensuring the safe operation of the device under high temperature, high pressure or complex working conditions.

[0054] Example 8, the control unit 2 includes a connecting mechanism 21 and a reinforcing mechanism 22 sleeved and installed in the inner cavity of the connecting mechanism 21, the inner cavity of the connecting mechanism 21 is interspersed with a pushing mechanism 23, the connecting mechanism 21 includes a connecting outer cylinder 211 and a ventilation cavity 212 opened on both sides of the outer end surface of the connecting outer cylinder 211, the inner cavity of the connecting outer cylinder 211 is provided with a built-in cavity 213, the rear end surface of the connecting outer cylinder 211 is installed with a transverse bar 214, and the other end of the transverse bar 214 is installed with a mounting cylinder 215. The operator holds the outer ring of the mounting cylinder 215 and uses the connecting outer cylinder 211 as a fulcrum to adjust the position of the monitoring unit 1 as a whole. The detection position of the monitoring unit 1 is slightly adjusted, and the ventilation cavity 212 arranged on both sides of the outer end surface of the connecting outer cylinder 211 can receive the wall wind at the gap between the inner wall of the boiler and the equipment. When the wall wind enters the inner cavity of the transparent cavity 222 from the built-in cavity 213 at one end, the airflow flows in the inner cavity of the transparent cavity 222. When the airflow pushes the sliding temperature sensor block 233 to move with the matching shaft 232 as the path, the airflow intensity of the wall wind at this time can be inferred by the pushing distance of the sliding temperature sensor block 233. The airflow intensity of the wall wind can be accurately inferred, thereby realizing real-time monitoring of the wall wind inside the boiler and providing a reliable basis for equipment operation adjustment.

[0055] In Example 9, the connecting mechanism 21 also includes a swing frame 216 installed at the edge of the side end face of the connecting outer cylinder 211, and an inner inserted cylinder 217 is arranged at the interval between the two groups of the swing frames 216. A handpiece 218 is installed at the other end of the swing frame 216. When it is necessary to clean the dust or attachments inside the boiler, an air flow is sprayed into the boiler in a quasi-working state. At this time, the entire connecting mechanism 21 is disassembled and reassembled, the transverse bar 214 and the installation cylinder 215 are disassembled, and the swing frame 216, the inner inserted cylinder 217 and the handpiece 218 are used to replace them. The operator holds the outer end wall of the replaced handpiece 218 horizontally, so that the operator can use the swing frame 216 as a swing arm to swing the monitoring unit 1 back and forth on the inner wall of the heating surface at the rear of the boiler. The flexible operation method can ensure that the device covers more areas and the cleaning effect is more comprehensive. The vibration contact between the device and the inner wall of the heating surface at the rear of the boiler is utilized, so that the shell 111 in the swinging state is utilized to vibrate and remove the dust or attachments.

[0056] In embodiment 100, the reinforcing mechanism 22 includes a reinforcing frame 221 and a transparent cavity 222 opened on the side end surface of the reinforcing frame 221. The inner cavity of the reinforcing frame 221 is laterally provided with a series member 223, and the arranged series member 223 is laterally inserted into the inner cavity of the mounting cylinder 215, which can improve the structural stability between the connecting mechanism 21 and the reinforcing mechanism 22. The stable structural design enables the device to maintain reliable operation in high temperature, high pressure or vibration environments, extend the service life of the equipment, and reduce the maintenance frequency. The horizontal insertion design makes the installation and disassembly of components more convenient, reduces the difficulty of operation, improves the assembly efficiency, and facilitates maintenance and inspection. Through the structural design with enhanced stability, the device can adapt to complex working conditions during boiler operation, such as high-load operation or frequent start and stop, to ensure continuous and efficient working performance.

[0057] In embodiment 11, the pushing mechanism 23 includes a mounting bar 231 and a mating shaft 232 installed between two groups of mounting bars 231. The outer ring of the mating shaft 232 is sleeved with a sliding temperature sensor block 233. When the sliding temperature sensor block 233 is subjected to too much thrust, the sliding temperature sensor block 233 will slide to one end and contact the side end face of the mounting bar 231. At this time, the position of the sliding temperature sensor block 233 slides out of the inner cavity of the transparent cavity 222, so that the airflow entering the inner cavity of the transparent cavity 222 is discharged outward. The discharged airflow passes through the gap between the transparent cavity 222 and the built-in cavity 213, thereby increasing the moving speed of the airflow, enhancing the response speed and sensitivity of the monitoring device, and enabling the airflow changes to be captured and analyzed more quickly and effectively.

[0058] An early warning method for a boiler rear heating surface ash collapse monitoring device comprises the following steps:

[0059] S1: Insert the monitoring unit 1 of the entire device into the inner cavity of the boiler tail heating surface, so that the outer end surface of the shell 111 is in contact with the inner cavity wall of the boiler tail heating surface. At this time, the assembly mechanism 12 and the warning mechanism 13 in contact with the other inner cavity wall of the heating surface are both in the necessary path for heat flow to be discharged;

[0060] S2: The operator holds the outer ring of the mounting cylinder 215 and adjusts the position of the monitoring unit 1 as a whole with the connecting outer cylinder 211 as the fulcrum, making fine adjustments to the detection position of the monitoring unit 1. The ventilation chambers 212 provided on both sides of the outer end surface of the connecting outer cylinder 211 can receive the wall wind at the gap between the inner wall of the boiler and the equipment. When the wall wind enters the inner cavity of the transparent cavity 222 from the built-in cavity 213 at one end, the airflow flows in the inner cavity of the transparent cavity 222. When the airflow pushes the sliding temperature sensor block 233 to move along the matching shaft 232 as the path, the airflow intensity of the wall wind at this time can be inferred by the distance pushed by the sliding temperature sensor block 233.

[0061] S3: When the thrust applied to the sliding temperature sensing block 233 is too great, the sliding temperature sensing block 233 slides toward one end and contacts the side surface of the mounting bar 231. At this point, the sliding temperature sensing block 233 slides out of the inner cavity of the transparent cavity 222, causing the airflow entering the inner cavity of the transparent cavity 222 to be discharged outward. The discharged airflow passes through the gap between the transparent cavity 222 and the built-in cavity 213, allowing airflow changes to be captured and analyzed.

[0062] S4: When it is necessary to clean the dust or attachments inside the boiler, an air flow is sprayed into the boiler in a quasi-working state to connect the swing frame 216 at the edge of the side end face of the outer tube 211. An inner insertion tube 217 is arranged at the interval between the two sets of swing frames 216. A handpiece 218 is installed at the other end of the swing frame 216. At this time, the entire connection mechanism 21 is disassembled and reassembled, the transverse bar 214 and the installation tube 215 are disassembled, and the swing frame 216, the inner insertion tube 217 and the handpiece 218 are used to replace them. The operator holds the outer end wall of the replaced handpiece 218 horizontally, and uses the vibration contact between the device and the inner wall of the heating surface at the rear of the boiler to vibrate and remove the dust or attachments by the shell 111 in the swinging state;

[0063] S5: When one adjustment frame 1321 is exposed to high temperature, it will contract toward the other adjustment frame 1321 using the elastic cross member 1323 and the connecting ball 1324 as a movable joint. This design allows the structure of the adjustment mechanism 132 to flexibly respond to changes in the internal temperature of the boiler and automatically adjust its position to adapt to different temperature zones. When adjusting the position between the two adjustment frames 1321, the inner cavities of the first temperature sensor 1322 and the second temperature sensor 133 will always remain connected. This connectivity ensures that the internal temperature of the boiler can be continuously transmitted to the structure of the adjustment mechanism 132, realizing temperature sensing and heat exchange.

[0064] S6: When the overall structure of the adjustment mechanism 132 is not undergoing contraction or expansion, the two sets of first temperature sensors 1322 are both connected to the inner cavity of the second temperature sensor 133, so that the temperatures of different areas in the boiler can be evenly transmitted through the first temperature sensors 1322 and the second temperature sensors 133, providing stable heat data for subsequent adjustment and monitoring. The adjustment mechanism 132 as a whole can achieve dynamic position adjustment through the movable joint, while maintaining communication with the temperature in the boiler and being able to make real-time adjustments based on the heat distribution in the boiler, ensuring the reliability and adaptability of the device under different operating conditions;

[0065] S7: The early warning mechanism 13 is provided with multiple groups in the boiler that are in contact with the heating surface of the boiler, and can timely sense the body temperature of the boiler inner wall and the temperature of the ash or attachments in time during the heat warning, and can monitor the temperature changes of the boiler inner wall and the attachments on its surface in real time, so as to quickly provide early warning when overheating or ash accumulation problems occur, avoiding equipment damage or reduced operating efficiency caused by abnormal temperature.

[0066] The above is the entire working principle of the present invention.

[0067] In the present invention, the installation method, connection method or setting method of all the components mentioned above are common mechanical methods, and the specific structures, models and coefficient indicators of all its components are its own technology. As long as it can achieve its beneficial effects, it can be implemented, so it will not be elaborated on.

[0068] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited to the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principles of the present invention should be considered as equivalent replacement methods and are included in the scope of protection of the present invention.

[0069] In the present invention, unless otherwise specified, directional words contained in terms such as "up, down, left, right, front, back, inside, outside, and vertical, horizontal" only represent the orientation of the term in normal use, or are common names understood by those skilled in the art, and should not be regarded as limitations on the term. At the same time, number series nouns such as "first", "second" and "third" do not represent specific quantities and orders, but are merely used to distinguish names. Moreover, the terms "include", "comprise" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements that are not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

Claims

1. A device for monitoring ash collapse on the rear heating surface of a boiler, comprising a monitoring unit (1) and a control unit (2), wherein the monitoring units (1) are mounted on both side end surfaces of the control unit (2), and the device is characterized in that: The monitoring unit (1) includes a monitoring shell (11) and an assembly mechanism (12) arranged and mounted on the inner end surface of the monitoring shell (11); the monitoring shell (11) includes a shell (111) and an inner slide groove (112) arranged and arranged on the inner end surface of the shell (111); the inner cavity of the inner slide groove (112) is interspersed with the assembly mechanism (12); The outer ring of the assembly mechanism (12) is sleeved with a warning mechanism (13), and the assembly mechanism (12) includes a first annular belt (121) and a series block (122) mounted on the first annular belt (121) and connected to one end of the first annular belt (121), and the other end of the series block (122) is connected in series with the second annular belt (123); The warning mechanism (13) includes a warning outer tube (131) and an adjustment mechanism (132) installed on both sides of the inner end surface of the warning outer tube (131); second temperature sensors (133) are provided on both sides of the edge of one end of the warning outer tube (131); two groups of the warning outer tubes (131) are arranged relative to each other, and the second temperature sensors (133) between the two groups of the warning outer tubes (131) are arranged relative to each other; The adjustment mechanism (132) includes an adjustment frame (1321) and a first temperature sensor (1322) provided at a middle position of an outer end surface of the adjustment mechanism (132); an elastic cross member (1323) is cross-arranged between two groups of the adjustment frames (1321); the middle positions of the elastic cross members (1323) are connected via a connecting ball (1324); and one end of the connecting ball (1324) is connected to the inner end surface of the adjustment frame (1321) via a rebound member (1325).

2. The device for monitoring ash collapse on the rear heating surface of a boiler according to claim 1, characterized in that: The control unit (2) includes a connecting mechanism (21) and a reinforcing mechanism (22) sleeved and mounted on the inner cavity of the connecting mechanism (21), and a pushing mechanism (23) is inserted into the inner cavity of the connecting mechanism (21); The connecting mechanism (21) comprises a connecting outer cylinder (211) and ventilation cavities (212) provided on both sides of the outer end surface of the connecting outer cylinder (211); the inner cavity of the connecting outer cylinder (211) provides a built-in cavity (213); a transverse strip (214) is installed on the rear end surface of the connecting outer cylinder (211); and a mounting cylinder (215) is installed on the other end of the transverse strip (214).

3. The device for monitoring ash collapse on the rear heating surface of a boiler according to claim 2, characterized in that: The connection mechanism (21) further comprises a swing frame (216) mounted on the edge of the side end surface of the connection outer cylinder (211), an inner interpenetrating cylinder (217) is arranged at the interval between two sets of the swing frames (216), and a handpiece (218) is mounted on the other end of the swing frame (216).

4. The device for monitoring ash collapse on the rear heating surface of a boiler according to claim 2, characterized in that: The reinforcing mechanism (22) comprises a reinforcing frame (221) and a transparent cavity (222) provided on a side end surface of the reinforcing frame (221), and a series connection member (223) is transversely provided in the inner cavity of the reinforcing frame (221); The pushing mechanism (23) comprises a mounting horizontal bar (231) and a matching shaft (232) mounted between two sets of mounting horizontal bars (231), wherein the outer ring of the matching shaft (232) is sleeved with a sliding temperature sensing block (233).

5. The early warning method of the boiler rear heating surface ash collapse monitoring device according to claim 4, characterized in that: The following steps are involved: S1: The monitoring unit (1) in the whole device is partially inserted into the inner cavity of the heating surface at the rear of the boiler, so that the outer end surface of the shell (111) is attached to the heating surface of the inner cavity wall at the rear of the boiler. At this time, the assembly mechanism (12) and the warning mechanism (13) attached to the other inner cavity wall of the heating surface are both in the necessary path for heat flow discharge; S2: The operator holds the outer ring of the mounting cylinder (215) and adjusts the position of the monitoring unit (1) as a whole with the connecting outer cylinder (211) as a fulcrum, and makes a fine adjustment to the detection position of the monitoring unit (1). The ventilation cavity (212) provided on both sides of the outer end surface of the connecting outer cylinder (211) can receive the wall wind at the gap between the inner wall of the boiler and the equipment. When the wall wind enters the inner cavity of the transparent cavity (222) from the built-in cavity (213) at one end, the airflow flows in the inner cavity of the transparent cavity (222). When the airflow pushes the sliding temperature sensing block (233) to move along the matching shaft (232), the airflow intensity of the wall wind at this time can be inferred by the pushing distance of the sliding temperature sensing block (233); S3: When the thrust applied to the sliding temperature sensing block (233) is too large, the sliding temperature sensing block (233) will slide toward one end and contact the side end surface of the mounting bar (231). At this time, the position of the sliding temperature sensing block (233) slides out of the inner cavity of the transparent cavity (222), so that the airflow entering the inner cavity of the transparent cavity (222) is discharged outward. The discharged airflow passes through the gap between the transparent cavity (222) and the built-in cavity (213), so that the airflow changes can be captured and analyzed. S4: When it is necessary to clean the dust or attachments inside the boiler, an air flow is sprayed into the boiler in a quasi-working state, and the swing frame (216) at the edge of the side end face of the outer tube (211) is connected. An inner interpenetrating tube (217) is arranged at the interval between the two sets of swing frames (216). A handpiece (218) is installed at the other end of the swing frame (216). At this time, the entire device of the connection mechanism (21) is disassembled and reassembled, and the transverse bar (214) and the installation tube (215) are disassembled and replaced with the swing frame (216), the inner interpenetrating tube (217) and the handpiece (218). The operator holds the outer end wall of the replaced handpiece (218) horizontally, and uses the vibration contact between the device and the inner wall of the heating surface of the rear end of the boiler to vibrate and remove the dust or attachments using the shell (111) in the swinging state; S5: When the adjustment frame (1321) on one side is subjected to high temperature, it will shrink toward the other set of adjustment frames (1321) through the elastic cross member (1323) and the connecting ball (1324) as a movable joint. This design enables the structure of the adjustment mechanism (132) to flexibly respond to changes in the temperature inside the boiler and automatically adjust its position to adapt to different temperature zones. When the position is adjusted between the two sets of adjustment frames (1321), the inner cavities of the first temperature sensor (1322) and the second temperature sensor (133) are always kept in a connected state. This connectivity ensures that the temperature inside the boiler can be continuously transmitted to the structure of the adjustment mechanism (132), realizing temperature sensing and heat exchange. S6: When the overall structure of the adjustment mechanism (132) is not contracted or expanded, the two sets of first temperature sensors (1322) are connected to the inner cavity of the second temperature sensor (133), so that the temperature of different areas in the boiler can be evenly transmitted through the first temperature sensor (1322) and the second temperature sensor (133), providing stable heat data for subsequent adjustment and monitoring. The overall adjustment mechanism (132) realizes dynamic position adjustment through the movable joint, and while maintaining communication with the temperature in the boiler, it can be adjusted in real time according to the heat distribution in the boiler and the thickness of the soot at the boiler exhaust port. Moreover, through the swing frequency of the adjustment mechanism, the staff can directly visually observe whether the soot thickness at the boiler exhaust port reaches the set maximum threshold, ensuring the reliability and adaptability of the device under different working conditions; S7: The early warning mechanism (13) is provided with multiple groups in contact with the heating surface of the boiler, and can timely sense the temperature of the boiler inner wall and the temperature of the ash or attachments in time when the heat warning is issued, and can monitor the temperature changes of the boiler inner wall and the attachments on its surface in real time, so as to quickly provide early warning when overheating or ash accumulation problems occur, thereby avoiding equipment damage or reduced operating efficiency caused by abnormal temperature.

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