A boiler water wall deformation displacement measurement system and method

Abstract

This invention provides a boiler water-cooled wall deformation and displacement measurement system and method, including a monitoring server and multiple multi-vector sensors. Each multi-vector sensor includes a frame and four sensing components. One sensing component is connected to each of the four sides of the frame. Each sensing component includes a laser rangefinder and a two-dimensional position detector, which are communicatively connected to the monitoring server. By installing a sensing component on each of the four sides of the frame, the two-dimensional position detector serves as both a displacement monitoring device and a reflective surface for the laser rangefinder opposite it. The laser rangefinder, while measuring the relative displacement between two adjacent multi-vector sensors, also provides a sensing spot for the two-dimensional position detector. The multi-vector sensors are arranged in a rectangular array on the backfire side of the boiler water-cooled wall, enabling overall monitoring of a large area of ​​the boiler water-cooled wall.

Description

Technical Field

[0001] This invention relates to the field of boiler expansion monitoring technology, and in particular to a boiler water-cooled wall deformation displacement measurement system and method. Background Technology

[0002] Statistics show that approximately 70% of accidents in coal-fired power generating units originate from the boiler side, with the majority of these accidents caused by the failure of boiler water-cooled wall tubes. This type of failure is commonly known as "four-tube" rupture, and it is the leading cause of unplanned unit shutdowns. As the country accelerates the construction of new power systems, it has also placed demands on thermal power units for deep peak shaving and flexible operation. In early 2025, the National Energy Administration issued the "Implementation Plan for the Special Action to Upgrade New Generation Coal-fired Power (2025-2027)," further raising the standards and requirements for the operation of coal-fired power units.

[0003] The rapid load changes and deep peak shaving of boilers exacerbate boiler water-cooled wall failures. The main reasons are as follows: during peak shaving, poor control of the temperature rise rate during start-up and shutdown, and the use of rapid shutdown or forced cooling during emergency repairs can all cause a large temperature difference between the water-cooled wall and the fins, leading to deformation and damage to the heating surface; during deep peak shaving, operational control is difficult, resulting in uneven burning, which can cause uneven expansion of the water-cooled wall, exacerbate fin deformation, and lead to cracks.

[0004] Currently, there is a lack of effective methods for measuring the deformation of large-area water-cooled walls. Most measurements are point- or line-based, lacking surface-level measurement, making it difficult to solve the problem of large-area measurement and deformation monitoring of boiler water-cooled walls. Existing measurement methods, such as fiber optic stress (deformation) monitoring, are expensive and difficult to install due to the use of special high-temperature resistant optical fibers. Installation requires laying the fiber on the back-fire side of the water-cooled boiler tubes, close to the tube wall. However, if the fiber is damaged or needs to be installed later, the boiler's outer wall needs to be dismantled, which is extremely inconvenient. Furthermore, optical fibers are precision sensing materials, and their lifespan is shortened due to repeated expansion and contraction under high temperatures. Summary of the Invention

[0005] This invention provides a boiler water-cooled wall deformation displacement measurement system and method to solve the problem that existing technologies cannot measure the deformation of large-area water-cooled walls.

[0006] This invention provides a boiler water-cooled wall deformation displacement measurement system, including a monitoring server and multiple multi-vector sensors;

[0007] The multi-vector sensor includes an absolute multi-vector sensor as a reference and multiple relative multi-vector sensors for measuring deformation. The absolute multi-vector sensor is independent of the boiler water-cooled wall, and the relative multi-vector sensors are fixedly installed on the backfire side of the boiler water-cooled wall.

[0008] Each of the multi-vector sensors includes a frame and four sensing components. Each of the four sides of the frame is connected to a sensing component. The sensing component includes a laser range sensor and a two-dimensional position detector. The laser emitted by the laser range sensor illuminates the photosensitive surface of the two-dimensional position detector, which is disposed opposite to it on an adjacent frame.

[0009] The laser rangefinder and the two-dimensional position detector are respectively connected to the monitoring server.

[0010] Furthermore, it also includes a signal hub, which is connected to all laser rangefinders and two-dimensional position detectors via wired or wireless means, and sends the aggregated data to the monitoring server.

[0011] Furthermore, the optical axis of the laser rangefinder is perpendicular to the photosensitive surface of the two-dimensional position detector.

[0012] Furthermore, the multi-vector sensor also includes a data interface and a switch, which are arranged on the side of the frame away from the boiler water-cooled wall. The data interface is communicatively connected to the monitoring server.

[0013] Furthermore, it also includes a bracket and a rigid fixing base. The bracket is independent of the boiler water-cooled wall, and the rigid fixing base is fixedly connected to the backfire side of the boiler water-cooled wall. The absolute multi-vector sensor is connected to the bracket, and the relative multi-vector sensor is connected to the rigid fixing base.

[0014] The present invention also provides a method for measuring the deformation and displacement of a boiler water-cooled wall, applicable to the boiler water-cooled wall deformation and displacement measurement system described in any one of the above-mentioned methods, comprising the following steps:

[0015] Step S1: The monitoring server measures the displacement vector, i.e., the relative displacement vector, between two adjacent multi-vector sensors using a laser rangefinder and a two-dimensional position detector. ;

[0016] Step S2: Select a relative multi-vector sensor, select a reference path from the relative multi-vector sensor to the absolute multi-vector sensor, and calculate the absolute displacement vector of the relative multi-vector sensor relative to the absolute multi-vector sensor based on the reference path. The absolute displacement vector is the vector sum of all relative displacement vectors along the reference path, i.e. , This is the i-th relative displacement vector on the reference path;

[0017] Step S3: Repeat step S2 to calculate the absolute displacement vectors of all relative multi-vector sensors;

[0018] Step S4: The monitoring server reconstructs the deformation distribution of the boiler water-cooled wall based on the absolute displacement vectors of each relative multi-vector sensor.

[0019] Furthermore, in any of steps S1-S4, an alarm threshold is set in the monitoring server; it also includes executing step S5 after step S4: the monitoring server compares each absolute displacement vector with the alarm threshold, and when the absolute displacement vector exceeds the alarm threshold, the monitoring server issues an early warning.

[0020] Furthermore, the warning includes one or more of sound warnings and image warnings. The sound warning includes emitting an alarm bell, and the image warning can indicate abnormal locations through methods such as highlighting, flashing, or color marking.

[0021] Further, before step S1, step S0 is performed: all relative displacement vectors and absolute displacement vectors are reduced to zero.

[0022] The present invention also provides a storage medium, which is a local storage device of a monitoring server or a cloud server, for storing program instructions to execute any of the methods described above.

[0023] The beneficial effects of this invention are as follows: By installing a sensing component on each of the four sides of the frame, the sensing component includes a laser rangefinder and a two-dimensional position detector. The two-dimensional position detector serves as both a displacement monitoring device and a reflective surface for the laser rangefinder opposite it. The laser rangefinder, while measuring the relative displacement between two adjacent multi-vector sensors, also provides a sensing spot for the two-dimensional position detector. The multi-vector sensors are arranged in a rectangular array on the backfire side of the boiler water-cooled wall, enabling overall monitoring of a large area of ​​the boiler water-cooled wall. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the connection relationship of the boiler water-cooled wall deformation displacement measurement system of the present invention.

[0025] Figure 2 This is a schematic diagram of the connection relationship between the relative multi-vector sensors of the present invention.

[0026] Figure 3 This is a schematic diagram of the connection relationship of the absolute multi-vector sensor of the present invention.

[0027] Figure 4 This is a schematic diagram of the laser transmission relationship between the multi-vector sensors of the present invention.

[0028] Figure 5 This is a schematic diagram of the distribution of the multi-vector sensor according to the present invention.

[0029] Figure 6This is a schematic flowchart of the boiler water-cooled wall deformation displacement measurement method of the present invention.

[0030] Figure label:

[0031] 1. Monitoring server; 2. Signal hub; 3. Boiler water-cooled wall; 4. Multi-vector sensor; 41. Frame; 411. Rigid fixed base; 42. Two-dimensional position detector; 43. Laser rangefinder sensor; 44. Data interface; 45. Switch; 46. Bracket. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0033] The terms "first" and "second" in the specification and claims of this invention may explicitly or implicitly include one or more of those features. In the description of this invention, unless otherwise stated, "a plurality of" means two or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0034] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0035] The following is combined Figures 1-4This invention describes a boiler water-cooled wall deformation and displacement measurement system, comprising a monitoring server and multiple multi-vector sensors. The multi-vector sensors include an absolute multi-vector sensor serving as a reference and multiple relative multi-vector sensors for measuring deformation. The absolute multi-vector sensor is independent of the boiler water-cooled wall, while the relative multi-vector sensors are fixedly installed on the unfired side of the boiler water-cooled wall. Each multi-vector sensor includes a frame and four sensing components. Each of the four sides of the frame is connected to a sensing component, which includes a laser rangefinder and a two-dimensional position detector. The laser emitted by the laser rangefinder illuminates the photosensitive surface of the two-dimensional position detector, which is positioned opposite to it on an adjacent frame. The laser rangefinder and the two-dimensional position detector are communicatively connected to the monitoring server.

[0036] Specifically, such as Figure 1 As shown, multi-vector sensors are installed on the back-fire side of the boiler water-cooled wall. One multi-vector sensor is selected as a reference, independent of the boiler water-cooled wall and unmoved by boiler deformation. Other multi-vector sensors, acting as relative sensors, are fixed at monitoring points on the back-fire side of the boiler water-cooled wall and displace with the deformation of the boiler water-cooled wall. By detecting the relative displacement between the relative and absolute multi-vector sensors, the displacement of each monitoring point on the boiler water-cooled wall is sensed. The sensed displacement data is transmitted to a monitoring server via a communication connection, specifically through wired or wireless communication, enabling overall monitoring of the boiler water-cooled wall. In some optional embodiments, the monitoring server can be deployed on a mobile terminal, computer, or similar computing device.

[0037] Specifically, such as Figure 4 As shown, the frame of the multi-vector sensor has a quadrangular prism structure, with a sensing component mounted on each of the four sides of the frame. Each sensing component includes a laser rangefinder and a two-dimensional position detector (PSD). The laser emitted by the laser rangefinder illuminates the photosensitive surface of the PSD, which is positioned opposite it on an adjacent frame. The laser rangefinder measures the displacement of the multi-vector sensor opposite it along the laser illumination direction. The PSD, located on the same side as the laser rangefinder, measures the displacement of the multi-vector sensor opposite it within the plane of the PSD, thus comprehensively monitoring the three-dimensional displacement of the multi-vector sensors opposite to it. The PSD serves as both a displacement monitoring device and a reflective surface for the laser rangefinder opposite it, while the laser rangefinder, while measuring the relative displacement between two adjacent multi-vector sensors, also provides a sensing spot for the PSD.

[0038] In some alternative embodiments, such as Figure 4As shown, a multi-vector sensor is arranged in a rectangular array on the back-fire side of the boiler water-cooled wall. The bottom surface of the multi-vector sensor is parallel to the boiler water-cooled wall, and the four sides of the multi-vector sensor frame face the four directions of up, down, left, and right, respectively. The optical axis of the laser rangefinder is perpendicular to the photosensitive surface of the two-dimensional position detector. The laser emitted by the laser rangefinder is reflected by the two-dimensional position detector of the other multi-vector sensor opposite it, returning to the laser rangefinder, thereby monitoring the relative displacement between the two multi-vector sensors parallel to the laser direction. The laser spot illuminates the two-dimensional position detector. When the multi-vector sensor opposite to the two-dimensional position detector moves due to the deformation of the boiler water-cooled wall, the laser spot moves on the two-dimensional position detector, thereby monitoring the relative displacement between the two multi-vector sensors perpendicular to the laser direction.

[0039] In some alternative embodiments, such as Figure 1 As shown, the displacement measurement system also includes a signal hub, which communicates with all laser rangefinders and 2D position detectors via wired or wireless means, and sends the aggregated data to the monitoring server. Specifically, the signal hub collects the signals acquired by each multi-vector sensor and transmits them to the monitoring server, avoiding complex wiring.

[0040] In some alternative embodiments, such as Figure 2 , Figure 3 As shown, the multi-vector sensor also includes a data interface and a switch, which are located on the side of the frame away from the boiler water-cooled wall. The data interface is communicatively connected to the monitoring server. Specifically, the switch is connected to the laser rangefinder and the 2D position detector respectively, used to control the on and off of the laser rangefinder and the 2D position detector. The data interface is connected to both the laser rangefinder and the 2D position detector. The monitoring server can be directly connected to the data interface, or connected to the data interface through a signal hub, to transmit the data collected by the laser rangefinder and the 2D position detector to the monitoring server.

[0041] In some alternative embodiments, the deformation displacement measurement system further includes a support and a rigid fixed base. The support is independent of the boiler water-cooled wall, and the rigid fixed base is fixedly connected to the back-fire side of the boiler water-cooled wall. An absolute multi-vector sensor is connected to the support, and a relative multi-vector sensor is connected to the rigid fixed base.

[0042] Specifically, such as Figure 2 , Figure 3As shown, the absolute multi-vector sensor is connected to a bracket, one end of which is fixed to the ground, and the other end is fixed to the frame of the absolute multi-vector sensor. The rigid mounting base is made of a fixed-length metal material. One end of the rigid mounting base is welded to the boiler fins, and the other end is bolted to the bottom surface of the relative multi-vector sensor. This allows for rapid installation of the multi-vector sensor.

[0043] This embodiment also provides a method for measuring the deformation and displacement of a boiler water-cooled wall, such as... Figure 6 As shown, the boiler water-cooled wall deformation displacement measurement system applied to any of the above embodiments includes the following steps:

[0044] Step S0: Set all relative displacement vectors and absolute displacement vectors to zero.

[0045] Step S1: The monitoring server measures the displacement vector, i.e., the relative displacement vector, between two adjacent multi-vector sensors using a laser rangefinder and a two-dimensional position detector. ;

[0046] Specifically, after installing the deformation displacement measurement system on the back-fire side of the boiler water-cooled wall, a three-dimensional coordinate system is constructed within the monitoring server. The three-dimensional coordinates of each monitoring point are set within this system and matched with the IDs of each multi-vector sensor. All relative and absolute displacement vectors are zeroed out. The sensing components on the four sides of each multi-vector sensor monitor the relative displacement with respect to that sensor. A laser rangefinder is used to measure the displacement of the multi-vector sensor opposite it along the laser irradiation direction. A two-dimensional position detector located on the same side as the laser rangefinder is used to measure the displacement of the multi-vector sensor opposite it in the plane of the two-dimensional position detector, thereby measuring the relative displacement vectors of all multi-vector sensors. .

[0047] Step S2: Select a relative multi-vector sensor, select a reference path from the relative multi-vector sensor to the absolute multi-vector sensor, and calculate the absolute displacement vector of the relative multi-vector sensor relative to the absolute multi-vector sensor based on the reference path. The absolute displacement vector is the vector sum of all relative displacement vectors along the reference path, i.e. , This is the i-th relative displacement vector on the reference path;

[0048] Specifically, absolute displacement vector In this case, a relative multi-vector sensor is selected, and the shortest reference path from the relative multi-vector sensor to the absolute multi-vector sensor is chosen. The absolute displacement vector is obtained by summing all relative displacement vectors on this path. Alternatively, a relative multi-vector sensor is selected, and N reference paths from the relative multi-vector sensor to the absolute multi-vector sensor are chosen. The N absolute displacement vectors are then summed for each path, and the average of the N absolute displacement vectors is calculated to obtain the absolute displacement vector.

[0049] Step S3: Repeat step S2 to calculate the absolute displacement vectors of all relative multi-vector sensors;

[0050] Step S4: The monitoring server reconstructs the deformation distribution of the boiler water-cooled wall based on the absolute displacement vectors of each relative multi-vector sensor.

[0051] Specifically, the absolute displacement vectors of all relative multi-vector sensors arranged on the boiler water-cooled wall are calculated through steps S1 and S2, thereby restoring the deformation distribution of the boiler water-cooled wall in the three-dimensional coordinate system within the monitoring server, and realizing the measurement and monitoring of the deformation displacement of the entire boiler water-cooled wall.

[0052] Furthermore, the method for measuring the deformation and displacement of boiler water-cooled walls also includes:

[0053] In any of steps S1-S4, set the alarm threshold;

[0054] After step S4, step S5 is executed: the monitoring server compares each absolute displacement vector with the alarm threshold. When the absolute displacement vector exceeds the alarm threshold, the monitoring server issues an early warning.

[0055] Specifically, alarm thresholds for boiler water-cooled wall deformation are pre-set in the monitoring server according to actual needs. While monitoring the deformation of the entire boiler water-cooled wall, the monitoring server compares the absolute displacement of each monitoring point with the alarm threshold in real time. When the absolute displacement of a certain monitoring point exceeds the alarm threshold, the monitoring server issues an early warning, enabling staff to handle abnormal situations in a timely manner.

[0056] Furthermore, the warning includes one or more of sound warnings and image warnings. Sound warnings can be implemented through buzzers or sound and light alarms, while image warnings can indicate abnormal locations through methods such as highlighting, flashing, or color marking.

[0057] Specifically, when the absolute displacement of a monitoring point exceeds the alarm threshold, the monitoring server sounds an alarm and marks and flashes the monitoring point within the server, thus assisting personnel in locating the specific location of the deformation anomaly. In one implementation, an alarm light and alarm bell can be installed on each relative multi-vector sensor, and these lights and bells can be connected to the monitoring server for communication control. When the monitoring server detects that the absolute displacement of a monitoring point exceeds the alarm threshold, the monitoring server controls the alarm light on that relative multi-vector sensor to flash and activates the alarm bell on that relative multi-vector sensor.

[0058] Furthermore, the boiler water-cooled wall deformation displacement measurement method also includes performing step S0 before step S1: zeroing all relative displacement vectors and absolute displacement vectors.

[0059] To enable those skilled in the art to better understand the technical solution of this application, the implementation process of the boiler water-cooled wall deformation displacement measurement method of this application will be described in detail below with reference to specific embodiments.

[0060] This embodiment relates to a specific method for measuring the deformation and displacement of a boiler water-cooled wall, such as... Figure 5 , Figure 6 As shown, the system for measuring the deformation and displacement of a boiler water-cooled wall containing six multi-vector sensors includes the following steps:

[0061] Step S0: Set all relative displacement vectors and absolute displacement vectors to zero.

[0062] Step S1: After installing the deformation displacement measurement system on the backfire side of the boiler water-cooled wall, construct a three-dimensional coordinate system within the monitoring server. Set the three-dimensional coordinates of each monitoring point within the three-dimensional coordinate system and match them with the IDs of each multi-vector sensor. Build an alarm threshold within the monitoring server. Number each multi-vector sensor, designating sensor 1 as an absolute multi-vector sensor and sensors numbered 2 through 6 as relative multi-vector sensors. The sensing components on the four sides of each multi-vector sensor monitor the relative displacement with respect to that sensor. A laser rangefinder is used to measure the displacement of the multi-vector sensor opposite it along the laser irradiation direction. A two-dimensional position detector located on the same side as the laser rangefinder is used to measure the displacement of the multi-vector sensor opposite it in the plane of the two-dimensional position detector, thereby measuring the relative displacement vectors of all multi-vector sensors. .

[0063] Step S2: Select a relative multi-vector sensor, select a reference path from the relative multi-vector sensor to the absolute multi-vector sensor, and calculate the absolute displacement vector of the relative multi-vector sensor relative to the absolute multi-vector sensor based on the reference path. The absolute displacement vector is the vector sum of all relative displacement vectors along the reference path, i.e. , Let be the i-th relative displacement vector on the reference path.

[0064] Taking the No. 6 relative multi-vector sensor as an example, there are three reference paths from the No. 6 relative multi-vector sensor to the No. 1 multi-vector sensor. The first reference path is 1-4-5-6, the second reference path is 1-2-5-6, and the third reference path is 1-2-3-6.

[0065] When the first path is selected as the reference path, the absolute displacement vector of sensor No. 6 relative to the multi-vector sensor... = Displacement vector of multi-vector sensor #4 relative to multi-vector sensor #1 + Displacement vector of multi-vector sensor #5 relative to multi-vector sensor #4 + Displacement vector of multi-vector sensor #6 relative to multi-vector sensor #5.

[0066] When the second path is selected as the reference path, the absolute displacement vector of sensor No. 6 relative to the multi-vector sensor... = Displacement vector of multi-vector sensor No. 2 relative to multi-vector sensor No. 1 + Displacement vector of multi-vector sensor No. 5 relative to multi-vector sensor No. 2 + Displacement vector of multi-vector sensor No. 6 relative to multi-vector sensor No. 5.

[0067] When the third path is selected as the reference path, the absolute displacement vector of sensor No. 6 relative to the multi-vector sensor... = Displacement vector of multi-vector sensor No. 2 relative to multi-vector sensor No. 1 + Displacement vector of multi-vector sensor No. 3 relative to multi-vector sensor No. 2 + Displacement vector of multi-vector sensor No. 6 relative to multi-vector sensor No. 3.

[0068] The absolute displacement vector of the No. 6 relative multi-vector sensor can be selected from any of the three reference paths mentioned above, or the average value of the calculation results of multiple paths can be taken as the final displacement vector.

[0069] Step S3: Repeat step S2 to calculate the absolute displacement vectors of the other multi-vector sensors No. 2 to No. 5;

[0070] Step S4: The monitoring server reconstructs the deformation distribution of the boiler water-cooled wall based on the absolute displacement vectors of each relative multi-vector sensor.

[0071] Step S5: The monitoring server compares each absolute displacement vector with the alarm threshold. When the absolute displacement exceeds the alarm threshold, the monitoring server issues an early warning.

[0072] According to another aspect of this application, a storage medium is provided, which is the local memory of a monitoring server or a cloud server, for storing program instructions to execute any boiler water-cooled wall deformation displacement measurement method.

[0073] Where there is no conflict, the above embodiments and features described herein can be combined with each other.

[0074] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A method for measuring the deformation and displacement of a boiler water-cooled wall, characterized in that: The system for measuring the deformation and displacement of boiler water-cooled walls includes the following steps: Step S1: The monitoring server measures the displacement vector, i.e., the relative displacement vector, between two adjacent multi-vector sensors using a laser rangefinder and a two-dimensional position detector. ; Step S2: Select a relative multi-vector sensor, select a reference path from the relative multi-vector sensor to the absolute multi-vector sensor, and calculate the absolute displacement vector of the relative multi-vector sensor relative to the absolute multi-vector sensor based on the reference path. The absolute displacement vector is the vector sum of all relative displacement vectors along the reference path, i.e. , This is the i-th relative displacement vector on the reference path; Step S3: Repeat step S2 to calculate the absolute displacement vectors of all relative multi-vector sensors; Step S4: The monitoring server reconstructs the deformation distribution of the boiler water-cooled wall based on the absolute displacement vectors of each relative multi-vector sensor; The deformation displacement measurement system includes a monitoring server and multiple multi-vector sensors; The multi-vector sensor includes an absolute multi-vector sensor as a reference and multiple relative multi-vector sensors for measuring deformation. The absolute multi-vector sensor is independent of the boiler water-cooled wall, and the relative multi-vector sensors are fixedly installed on the backfire side of the boiler water-cooled wall. Each of the multi-vector sensors includes a frame and four sensing components. Each of the four sides of the frame is connected to a sensing component. The sensing component includes a laser range sensor and a two-dimensional position detector. The laser emitted by the laser range sensor illuminates the photosensitive surface of the two-dimensional position detector, which is disposed opposite to it on an adjacent frame. The laser rangefinder and the two-dimensional position detector are respectively connected to the monitoring server.

2. The method for measuring the deformation and displacement of a boiler water-cooled wall according to claim 1, characterized in that: The deformation displacement measurement system also includes a signal hub, which is connected to all laser rangefinders and two-dimensional position detectors via wired or wireless means, and sends the aggregated data to the monitoring server.

3. The method for measuring the deformation and displacement of a boiler water-cooled wall according to claim 1, characterized in that: The optical axis of the laser rangefinder is perpendicular to the photosensitive surface of the two-dimensional position detector.

4. The method for measuring the deformation and displacement of a boiler water-cooled wall according to claim 1, characterized in that: The multi-vector sensor also includes a data interface and a switch, which are arranged on the side of the frame away from the boiler water-cooled wall. The data interface is communicatively connected to the monitoring server.

5. The method for measuring the deformation and displacement of a boiler water-cooled wall according to claim 1, characterized in that: It also includes a bracket and a rigid fixing base. The bracket is independent of the boiler water-cooled wall, and the rigid fixing base is fixedly connected to the back-fire side of the boiler water-cooled wall. The absolute multi-vector sensor is connected to the bracket, and the relative multi-vector sensor is connected to the rigid fixing base.

6. The method for measuring the deformation and displacement of a boiler water-cooled wall according to claim 1, characterized in that, Also includes: In any of steps S1-S4, set the alarm threshold; It also includes executing step S5 after step S4: the monitoring server compares each absolute displacement vector with the alarm threshold, and when the absolute displacement vector exceeds the alarm threshold, the monitoring server issues an early warning.

7. The method for measuring the deformation and displacement of a boiler water-cooled wall according to claim 6, characterized in that: The warning includes one or more of sound warnings and image warnings. The sound warning includes emitting an alarm bell, and the image warning can indicate abnormal locations through methods such as highlighting, flashing, or color marking.

8. The method for measuring the deformation and displacement of a boiler water-cooled wall according to claim 1, characterized in that: Before step S1, perform step S0: set all relative displacement vectors and absolute displacement vectors to zero.

9. A storage medium, characterized in that, The storage medium is the local storage of the monitoring server or a cloud server, used to store program instructions to execute the method described in any one of claims 1-8.

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