Boiler drum water level multi-mode control method and sensor mounting rack

Abstract

The invention discloses a boiler drum water level multi-mode control method and a sensor mounting rack. The method comprises the following steps: collecting water level, pressure and temperature data of boiler drum operation through a sensor group; checking the consistency of the collected sensor data, comparing the confidence of the data, and carrying out weighted fusion on the data; forming current working condition parameters according to the collected pressure data and temperature data, and dynamically selecting and activating an adaptive control model from a multi-modal model library; calculating a residual vector of a water level predicted value output by the current activation control model and a water level estimated value output by the current activation control model, judging whether the sensor fails or not, and when the sensor fails, comparing the current working condition vector with the working condition of each model; according to the method, through redundant sensor data fusion, multi-model dynamic switching and an execution mechanism compensation mechanism, the problems of insufficient sensor reliability, poor control model adaptability and execution lag are solved, and the method has the advantages of improving system stability and control precision.

Description

Technical Field

[0001] This invention relates to the field of boiler drum control technology, and in particular to a multi-modal control method for boiler drum water level and a sensor mounting bracket. Background Technology

[0002] Boiler drum water level control is a critical aspect in industrial sectors such as thermal power generation and chemical production, and its stability directly affects equipment safety and operational efficiency. Traditional water level control systems typically employ a single-sensor monitoring combined with a PID control strategy.

[0003] However, in actual operation, the following technical problems are encountered: the problem of insufficient sensor reliability is particularly prominent. A single water level sensor is easily affected by environmental interference or hardware aging, resulting in deviation of measurement data; poor adaptability of the control model is another significant defect. The boiler operating conditions are complex and changeable, and the traditional single control model is difficult to cover all operating conditions. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is that a single water level sensor is susceptible to environmental interference or hardware aging, resulting in measurement data deviation; and traditional single control models are difficult to cover all working conditions.

[0005] The above-mentioned technical problems are solved by the following technical solution: This invention proposes a multi-modal control method for boiler drum water level, which includes... The water level, pressure, and temperature data of the boiler drum are collected periodically by a sensor array during operation. The collected water level, pressure, and temperature data are checked for consistency, and the confidence level of the compared data is assessed. The data are then weighted and fused. The current operating parameters are constructed based on the collected water level, pressure and temperature data, and the appropriate control model is dynamically selected and activated from the multimodal model library. The residual vector is calculated by comparing the operating parameters output by the current activated control model with the collected operating parameters, and the sensor is determined to be faulty based on the magnitude of the residual vector. When a sensor malfunction is detected, the operating parameters collected at the moment are compared with the operating parameters of each model to calculate the similarity. Weights are added to the similar models to generate an initial control quantity. Then, the water supply regulating valve is controlled by a variable parameter PID controller. When the sensor is detected to be normal, the residual vector is calculated and the malfunction is determined. Update the model parameters in the multimodal model library and record the fault characteristic data of this control process to the fault database.

[0006] In a preferred embodiment of the multimodal control method for boiler drum water level described in this invention: the sensor group includes at least three redundant water level sensors; the period for determining whether a sensor is faulty is five consecutive sampling periods.

[0007] This method solves the problems of insufficient sensor reliability, poor adaptability of control model and execution lag by fusing redundant sensor data, dynamic switching of multiple models and compensation mechanism of actuator, and has the advantages of improving system stability and control accuracy.

[0008] The above-mentioned technical problems are solved by the following technical solution: The present invention also proposes a sensor mounting bracket, which includes: a support part, on which a control part is disposed, a mounting part disposed on the control part, and a sensor probe disposed on the mounting part; The sensor probes are provided in at least three sets, and are distributed at 120-degree circumferential angles. The supporting part includes a boiler drum body and an arc-shaped mounting bracket disposed on the boiler drum body; The control unit includes a control component, a moving component disposed on the control component, a delay component disposed on the moving component, a steering component disposed on the delay component, and a valve component disposed on the steering component; The control component controls the moving component, which in turn drives the sensor probe to retract. The delay component ensures that the sensor probe is disengaged from the valve component, which in turn drives the steering component to operate, thus enabling the sensor probe to be replaced without stopping the machine.

[0009] In a preferred embodiment of the multimodal control method for boiler drum water level and sensor mounting bracket of the present invention: the control component includes a movable groove formed on the arc-shaped mounting bracket and the boiler drum body, a control block slidably connected inside the movable groove, and a rotating screw threadedly connected to the inner wall of the control block.

[0010] In a preferred embodiment of the multimodal control method for boiler drum water level and sensor mounting bracket of the present invention: the moving part includes a groove formed on the side of the moving slot, a moving block slidably connected inside the groove, and a cover plate disposed on the outside of the boiler drum body.

[0011] In a preferred embodiment of the boiler drum water level multimodal control method and sensor mounting bracket of the present invention: the delay component includes a delay groove formed on the moving block, a delay block disposed inside the delay groove, a limiting rod fixedly connected inside the delay groove, and a delay spring fixedly connected to the delay block.

[0012] In a preferred embodiment of the multimodal control method for boiler drum water level and sensor mounting bracket of the present invention: the steering component includes a square groove formed on the boiler drum body and the arc-shaped mounting bracket, an arc-shaped groove provided on the square groove, a control rod slidably connected inside the arc-shaped groove, an L-shaped frame provided on the outer wall of the control rod, and a long rod fixedly connected to the L-shaped frame; the other end of the long rod is rotatably connected to the outside of the delay block.

[0013] In a preferred embodiment of the boiler drum water level multimodal control method and sensor mounting bracket of the present invention: the valve component includes a mounting groove formed on the arc-shaped mounting bracket, a valve core disposed inside the mounting groove, and a rotating disk fixedly connected to both sides of the valve core; one end of the control lever is fixedly connected to the outside of the rotating disk.

[0014] In a preferred embodiment of the boiler drum water level multimodal control method and sensor mounting bracket of the present invention: the mounting part includes a positioning component, which includes a through hole opened on the moving block, a storage groove opened on the through hole, a limiting block slidably connected inside the storage groove, a limiting spring fixedly connected to the limiting block, and a limiting groove opened on the sensor probe.

[0015] In a preferred embodiment of the boiler drum water level multimodal control method and sensor mounting bracket of the present invention: the mounting part further includes a locking component, which includes an internal threaded sleeve threaded to the outer wall of the sensor probe, a sliding groove formed on the outer wall of the sensor probe, a slider slidably connected to the inside of the sliding groove, a locking ring fixedly connected to the slider, and a locking groove formed on the moving block.

[0016] The beneficial effects of this invention are as follows: the sensor probe is fixedly connected to the inside of the moving block by the cooperation of the locking part and the positioning part. Then, the sensor probe is inserted into the boiler drum for detection by the moving part. During disassembly, the moving block is moved by controlling the moving part, which in turn enables the delay part, the steering part and the valve part to cooperate so that when the sensor probe is retracted into the mounting bracket, the valve part closes and blocks the channel, thereby realizing the replacement of the sensor probe without stopping the machine. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments of the present invention will be briefly described below. Obviously, the drawings described below only relate to some embodiments of the present invention and are not intended to limit the present invention. Wherein: Figure 1 A schematic diagram of the overall structure of the sensor mounting bracket is shown; Figure 2 A diagram showing the internal structure of the groove in the sensor mounting bracket is provided. Figure 3 A structural diagram of the moving parts of the sensor mounting bracket is shown; Figure 4 A view of the interior of the square slot in the sensor mounting bracket is shown; Figure 5 It shows Figure 4 Enlarged view of point A in the middle; Figure 6 A structural diagram of the valve component of the sensor mounting bracket is shown; Figure 7 A structural diagram of the outer side of the movable block of the sensor mounting bracket is shown; Figure 8 It shows Figure 7 Enlarged view at point B in the middle; Figure 9 A diagram showing the internal structure of the through-hole of the sensor mounting bracket is provided. Figure 10 It shows Figure 9 Enlarged view at point C; Figure 11 A diagram of the locking ring structure of the sensor mounting bracket is shown. Detailed Implementation

[0018] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0019] The terminology used in this invention is that which is currently widely used in the art in consideration of the function of the invention; however, these terms may vary according to the intent of those skilled in the art, precedent, or new technology in the art. Furthermore, specific terms may be chosen by the applicant, and in such cases, their detailed meanings will be described in the detailed description of the invention. Therefore, the terms used in this specification should not be construed as simple names, but rather based on their meanings and the overall description of the invention.

[0020] This embodiment provides a multi-modal control method for boiler drum water level, including... The water level, pressure, and temperature data of the boiler drum are collected periodically by a sensor array during operation. The sensor group includes at least three redundant water level sensors: one water level sensor, one pressure sensor, and one temperature sensor.

[0021] Furthermore, the consistency of the collected water level, pressure, and temperature data is verified, the confidence level of the compared data is assessed, and the data is weighted and fused. Preferably, the data processing module performs the following steps: 1) Data from three water level sensors , , Perform consistency checks and calculate the confidence level of each sensor: Among them, Sensor data mean Standard deviation To prevent constants with a denominator of zero; 2) When the maximum confidence level When this occurs, a sensor malfunction alarm is triggered; 3) Weight and fuse the effective sensor data to output the water level estimate: Furthermore, based on the collected water level, pressure, and temperature data, the current operating condition parameters are constructed, and the appropriate control model is dynamically selected and activated from the multimodal model library. Preferably, the multimodal model library includes the following model types: 1) Steady-state operating condition model, based on the formula: in, H For water level, P For pressure, For water supply flow rate, For steam flow rate, , , The correlation coefficient of the operating conditions was calibrated through experiments; 2) Dynamic adjustment model, based on differential equations: in, For dynamic response coefficients, This is the pressure compensation coefficient; 3) Failure mode model, which includes preset failure scenarios such as sensor failure, actuator lag and pipeline leakage.

[0022] Furthermore, the residual vector is calculated by comparing the operating parameters output by the current activated control model with the collected operating parameters, and the sensor is determined to be faulty based on the magnitude of the residual vector; the period for determining whether the sensor is faulty is five consecutive sampling periods.

[0023] The fault detection unit is implemented in the following way: 1) Real-time calculation of residual vector ,in , This represents the water level prediction value of the currently active model; 2) When 5 consecutive sampling periods satisfy ( When the standard deviation of the model prediction is given, the i-th sensor is determined to be faulty; 3) After isolating the faulty sensor, automatically switch to the data fusion mode of the remaining sensors and reallocate the weights.

[0024] Furthermore, when a sensor malfunction is determined, the operating parameters collected at the moment are compared with the operating parameters of each model to calculate the similarity. Weights are added to similar models to generate an initial control quantity, which is then controlled by a variable parameter PID controller. When a sensor is determined to be normal, the residual vector is calculated and a malfunction is determined. The adaptive compensation unit performs the following operations: 1) Run multiple effective control models in parallel and generate the output control quantities of each model. ; 2) Based on the current working condition vector X With model nominal working condition Similarity is used to calculate model weights: in, The threshold for similarity between working conditions; 3) Generate the final control variable In addition, the execution agency delay compensation item is added: in, , This is an empirical coefficient. e(t) To control deviation.

[0025] In addition, the implementing agency includes a dynamic compensation mechanism: 1) The water supply regulating valve adopts variable parameter PID control, with a proportional coefficient... Dynamic adjustment based on water level deviation: in, As the benchmark scaling factor, To allow the maximum water level deviation; 2) Valve opening inertia compensation module, actual opening degree With instruction opening The relationship is: time constant Dynamically adjusted based on the rate of pressure change: in, , f. Update the model parameters in the multimodal model library and record the fault characteristic data of this control process to the fault database.

[0026] In summary, by using redundant sensor data fusion, dynamic switching between multiple models, and actuator compensation mechanisms, the problems of insufficient sensor reliability, poor adaptability of control models, and execution lag are solved, which has the advantages of improving system stability and control accuracy.

[0027] Reference Figures 1-9 As an optional embodiment, a sensor mounting bracket is provided, including a support part 1, on which a control part 2, a mounting part 3 disposed on the control part 2, and a sensor probe 4 disposed on the mounting part 3; the sensor probe 4 is provided in at least three groups, and is distributed at 120-degree circumferential angles; the support part 1 includes a boiler drum body 11, and an arc-shaped mounting bracket 12 disposed on the boiler drum body 11; the control part 2 includes a control component 21, a moving component 22 disposed on the control component 21, a delay component 23 disposed on the moving component 22, a steering component 24 disposed on the delay component 23, and a valve component 25 disposed on the steering component 24; the control component 21 controls the moving component 22, so that the moving component 22 drives the sensor probe 4 to retract, and under the action of the delay component 23, the steering component 24 is driven to operate when the sensor probe 4 is disengaged from the valve component 25, thereby enabling the replacement of the sensor probe 4 without stopping the machine.

[0028] The carrier is used to install the entire device. The control unit 2 is used to control the position of the sensor probe 4 inside the arc-shaped mounting bracket 12, thereby enabling the sensor probe 4 to be disassembled without stopping the machine. The mounting unit 3 is used to install and fix the sensor probe 4 inside the control unit 2, so that it can follow the operation of the control unit 2 to move the sensor probe 4.

[0029] In addition, by distributing three sets of sensor probes 4 in a 120-degree circumferential angle inside the boiler drum body 11, multiple different sensors can detect the water level inside the boiler drum at different locations, and a more accurate internal situation can be obtained by comparing multiple data.

[0030] In addition, the control unit 21 is configured to control the movement of the internal moving part 22 so that the sensor probe 4 can be inserted into the boiler drum body 11. When a fault occurs and replacement is required, the control unit 2 controls the movement of the moving part 22, which in turn moves the sensor probe 4. The delay part 23 causes the steering part 24 to delay the operation of the valve part 25, so that the steering part 24 controls the valve part 25 to operate only after the sensor probe 4 has disengaged from the valve part 25 by a certain distance. This causes the valve part 25 to close the channel, so that the operation of the boiler drum is not affected when the sensor probe 4 is removed from the boiler drum body 11, achieving uninterrupted removal.

[0031] Preferably, through the cooperation of the control component 21, moving component 22, delay component 23, steering component 24 and valve component 25 inside the control unit 2, the sensor probe 4 is brought close to the outside of the groove 221. Then, through quick installation and removal, the sensor probe 4 can be quickly installed and removed, achieving the technical effect of replacing the sensor probe 4 without stopping the machine.

[0032] Furthermore, the control component 21 includes a movable groove 211 formed on the arc-shaped mounting bracket 12 and the boiler drum body 11, a control block 212 slidably connected inside the movable groove 211, and a rotating screw 213 threadedly connected to the inner wall of the control block 212.

[0033] The movable slot 211 is used to restrict the movement trajectory of the control block 212, thereby enabling the control block 212 to move inside it. The control block 212 is fixedly connected to the outer wall of the movable block 222. The rotating screw 213 is used to drive the control block 212 to move up and down, thereby enabling the movable block 222 to move along with it.

[0034] Furthermore, the movable component 22 includes a groove 221 formed on the side of the movable slot 211, a movable block 222 slidably connected inside the groove 221, and a cover plate 223 disposed on the outside of the boiler drum body 11.

[0035] The groove 221 is designed to hold the movable block 222, which allows the movable block 222 to move inside, thereby moving the sensor probe 4 to the working position and away from the working position. The cover plate 223 is designed to seal the groove 221 to prevent dust from accumulating inside the groove 221 and causing the movable block 222 to become blocked.

[0036] Furthermore, the delay member 23 includes a delay groove 231 formed on the moving block 222, a delay block 232 disposed inside the delay groove 231, a limiting rod 233 fixedly connected inside the delay groove 231, and a delay spring 234 fixedly connected to the delay block 232.

[0037] The delay groove 231 is formed on both sides of the moving block 222 to facilitate the movement of the delay block 232 inside. The limiting rod 233 is fixedly connected to the inside of the delay groove 231 and passes through the delay block 232 to prevent the delay block 232 from falling out of the delay groove 231 and to prevent the delay spring 234 from disengaging.

[0038] Preferably, when the moving block 222 moves, the delay spring 234 pushes the delay block 232, so that the delay block 232 remains in place when the moving block 222 moves, thereby ensuring that the steering component 24 operates with a delay, thereby preventing the valve component 25 from operating and the sensor probe 4 from interfering with each other.

[0039] Furthermore, the steering component 24 includes a square groove 241 formed on the boiler drum body 11 and the arc-shaped mounting bracket 12, an arc-shaped groove 242 provided on the square groove 241, a control lever 243 slidably connected inside the arc-shaped groove 242, an L-shaped frame 244 provided on the outer wall of the control lever 243, and a long rod 245 fixedly connected to the L-shaped frame 244; the other end of the long rod 245 is rotatably connected to the outside of the delay block 232.

[0040] The square groove 241 is designed to facilitate the movement of the L-shaped frame 244 inside, and the arc groove 242 is designed to limit the movement trajectory of the control lever 243, thereby enabling the control lever 243 to drive the valve component 25 to operate, so that the valve component 25 can open and close.

[0041] Preferably, when the moving block 222 moves and causes the delay block 232 to move and contact the inner wall inside the delay groove 231, the delay block 232 will drive the long rod 245 to move, which in turn causes the L-shaped frame 244 to move along with it. This causes the L-shaped frame 244 to drive the control rod 243 to move inside the arc groove 242, thereby enabling the valve component 25 to open and close.

[0042] Specifically, when the L-shaped frame 244 moves, the control lever 243 will first move inside the vertical groove. At this time, the control lever 243 will not move, thus providing more space for the sensor probe 4 to move. When the inner wall of the horizontal groove contacts the control lever 243, it will drive the control lever 243 to move inside the arc groove 242, thereby enabling the valve component 25 to open and close.

[0043] Furthermore, the valve component 25 includes a mounting groove 251 formed on the arc-shaped mounting bracket 12, a valve core 252 disposed inside the mounting groove 251, and a rotating disk 253 fixedly connected to both sides of the valve core 252; one end of the control lever 243 is fixedly connected to the outside of the rotating disk 253.

[0044] The mounting slot 251 is used to place the valve core 252, and the rotating disk 253 is used to control the valve core 252 to rotate, thereby opening and closing the valve core 252.

[0045] Preferably, the moving block 222 is moved by the moving part 22. When the delay part 23 moves the steering part 24, the L-shaped frame 244 will move the control lever 243 inside the arc groove 242, so that the control lever 243 drives the rotating disk 253 to rotate, so that the valve core 252 rotates together with it, thereby closing the valve passage.

[0046] In summary: By rotating the screw 213, the control block 212 is driven to move along the moving groove 211, which in turn drives the moving block 222 in the groove 221 to move. Under the protection of the cover plate 223, the moving block 222 drives the sensor probe 4 to extend into or out of the working position, thereby realizing the position adjustment of the probe. When the moving block 222 moves, the delay blocks 232 in the delay grooves 231 on both sides remain in their original positions under the limit of the limiting rod 233 and the action of the delay spring 234. The delaying action of the steering component 24 is realized through the delay component 23, avoiding the valve component 25 from impacting the probe movement. When the moving block 222 continues to move and the delay block 232 comes into contact with the inner wall of the delay groove 231, the delay block 232 pulls the L-shaped frame to move via the long rod 245. After contacting the inner wall of the horizontal groove of the L-shaped frame 244, it drives the control lever 243 to slide along the arc groove 242, thereby driving the rotating disk 253 on the valve core 252 to rotate, so that the valve component 25 closes or opens the channel. After the moving block 222 drives the sensor probe 4 to retract and move away from the valve component 25 by a certain distance, the valve component 25 closes the channel, thus achieving the non-stop replacement of the sensor probe 4.

[0047] Reference Figures 8-11 As an optional embodiment, a sensor mounting bracket is provided, including the mounting part 3, which includes a positioning member 31, which includes a through hole 311 opened on the moving block 222, a storage groove 312 opened on the through hole 311, a limiting block 313 slidably connected inside the storage groove 312, a limiting spring 314 fixedly connected to the limiting block 313, and a limiting groove 315 opened on the sensor probe 4.

[0048] The through hole 311 is used to place the sensor probe 4, the storage groove 312 is used to facilitate the sliding of the limiting block 313 inside, and the limiting spring 314 is used to move inward with the limiting block 313, thereby cooperating with the limiting groove 315 to lock the sensor probe 4.

[0049] Preferably, when installing the sensor probe 4, the locking ring 324 on the locking member 32 is aligned with the locking groove 325, and then the sensor probe 4 is inserted into the through hole 311 of the moving block 222. When the limiting groove 315 moves to the position of the limiting block 313, the limiting spring 314 will push the limiting block 313 into the limiting groove 315 to achieve the pre-fixation of the sensor probe 4.

[0050] Specifically, during disassembly, first release the locking member 32 to release the restriction on the sensor probe 4, then rotate the sensor probe 4 so that the outer wall of the sensor probe 4 presses against the limiting block 313, thereby allowing it to be stored inside the storage slot 312, and then pull out the sensor probe 4 to achieve disassembly.

[0051] Furthermore, the mounting part 3 also includes a locking member 32, which includes an internal threaded sleeve 321 threaded to the outer wall of the sensor probe 4, a sliding groove 322 formed on the outer wall of the sensor probe 4, a slider 323 slidably connected to the inside of the sliding groove 322, a locking ring 324 fixedly connected to the slider 323, and a locking groove 325 formed on the moving block 222.

[0052] The internal threaded sleeve 321 is designed to move by rotation, thereby restricting the locking ring 324 inside the locking groove 325 on the moving block 222, thus restricting the sensor probe 4 so that it cannot rotate. This, in conjunction with the limiting component, enables the sensor probe 4 to be installed and fixed. During disassembly, simply rotating the internal threaded sleeve 321 allows the locking ring 324 to disengage from the locking groove 325, enabling the sensor probe 4 to be quickly disassembled by rotation.

[0053] Preferably, during disassembly, the inner threaded sleeve 321 is rotated to move it outward, at which point the locking ring 324 can be removed from the locking groove 325. After removal, the sensor probe 4 can be quickly disassembled by rotating the sensor probe 4, and the sensor probe 4 can be replaced without stopping the machine, in conjunction with the control unit 2.

[0054] In summary: When disassembling, rotate the inner threaded sleeve 321 to move it outward, at which point the locking ring 324 can be removed from the locking groove 325; this releases the restriction on the sensor probe 4. Then rotate the sensor probe 4, causing the outer wall of the sensor probe 4 to press against the limiting block 313, thereby allowing it to be stored inside the storage groove 312. Finally, pull out the sensor probe 4 to complete the disassembly.

[0055] Finally, it should be noted that the methods and devices described in detail above are merely embodiments, and those skilled in the art can modify these embodiments in different ways as long as they do not depart from the scope of the present invention.

Claims

1. A multi-modal control method for boiler drum water level, characterized in that: include, The water level, pressure, and temperature data of the boiler drum are collected periodically by a sensor array during operation. The collected water level, pressure, and temperature data are checked for consistency, and the confidence level of the compared data is assessed. The data are then weighted and fused. The current operating parameters are constructed based on the collected water level, pressure and temperature data, and the appropriate control model is dynamically selected and activated from the multimodal model library. The residual vector is calculated by comparing the operating parameters output by the current activated control model with the collected operating parameters, and the sensor is determined to be faulty based on the magnitude of the residual vector. When a sensor malfunction is detected, the operating parameters collected at the moment are compared with the operating parameters of each model to calculate the similarity. Weights are added to the similar models to generate an initial control quantity. Then, the water supply regulating valve is controlled by a variable parameter PID controller. When the sensor is detected to be normal, the residual vector is calculated and the malfunction is determined. Update the model parameters in the multimodal model library and record the fault characteristic data of this control process to the fault database.

2. The multi-modal control method for boiler drum water level according to claim 1, characterized in that: The sensor group contains at least three redundant water level sensors; the period for determining whether a sensor is faulty is five consecutive sampling periods.

3. A sensor mounting bracket, characterized in that: The boiler drum water level multimodal control method according to any one of claims 1 to 2 includes, The carrier (1) is provided with a control unit (2), a mounting unit (3) provided on the control unit (2), and a sensor probe (4) provided on the mounting unit (3). The sensor probe (4) is provided in at least three groups, and is distributed at 120-degree circumferential angles respectively; The supporting part (1) includes a boiler drum body (11) and an arc-shaped mounting bracket (12) disposed on the boiler drum body (11). The control unit (2) includes a control member (21), a moving member (22) disposed on the control member (21), a delay member (23) disposed on the moving member (22), a steering member (24) disposed on the delay member (23), and a valve member (25) disposed on the steering member (24). The control component (21) controls the moving component (22), which in turn drives the sensor probe (4) to retract. Under the action of the delay component (23), the sensor probe (4) is ensured to disengage from the valve component (25) and drive the steering component (24) to operate, thereby enabling the replacement of the sensor probe (4) without stopping the machine.

4. The sensor mounting bracket according to claim 3, characterized in that: The control component (21) includes a moving groove (211) formed on the arc-shaped mounting bracket (12) and the boiler drum body (11), a control block (212) slidably connected inside the moving groove (211), and a rotating screw (213) threadedly connected to the inner wall of the control block (212).

5. The sensor mounting bracket according to claim 4, characterized in that: The movable component (22) includes a groove (221) formed on the side of the movable slot (211), a movable block (222) slidably connected inside the groove (221), and a cover plate (223) disposed on the outside of the boiler drum body (11).

6. The sensor mounting bracket according to claim 5, characterized in that: The delay component (23) includes a delay groove (231) formed on the moving block (222), a delay block (232) disposed inside the delay groove (231), a limiting rod (233) fixedly connected inside the delay groove (231), and a delay spring (234) fixedly connected to the delay block (232).

7. The sensor mounting bracket according to claim 6, characterized in that: The steering component (24) includes a square groove (241) formed on the boiler drum body (11) and the arc-shaped mounting bracket (12), an arc-shaped groove (242) set on the square groove (241), a control lever (243) slidably connected inside the arc-shaped groove (242), an L-shaped frame (244) set on the outer wall of the control lever (243), and a long rod (245) fixedly connected to the L-shaped frame (244). The other end of the long rod (245) is rotatably connected to the outside of the delay block (232).

8. The sensor mounting bracket according to claim 7, characterized in that: The valve component (25) includes a mounting groove (251) opened on the arc-shaped mounting bracket (12), a valve core (252) disposed inside the mounting groove (251), and a rotating disk (253) fixedly connected to both sides of the valve core (252). One end of the control lever (243) is fixedly connected to the outside of the rotating disk (253).

9. The sensor mounting bracket according to claim 8, characterized in that: The mounting part (3) includes a positioning element (31), which includes a through hole (311) opened on the moving block (222), a storage slot (312) opened on the through hole (311), a limiting block (313) slidably connected inside the storage slot (312), a limiting spring (314) fixedly connected to the limiting block (313), and a limiting slot (315) opened on the sensor probe (4).

10. The sensor mounting bracket according to claim 9, characterized in that: The mounting part (3) further includes a locking member (32), which includes an inner threaded sleeve (321) threaded to the outer wall of the sensor probe (4), a slide groove (322) opened on the outer wall of the sensor probe (4), a slider (323) slidably connected to the inside of the slide groove (322), a locking ring (324) fixedly connected to the slider (323), and a locking groove (325) opened on the moving block (222).

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