System and method for determining cold-state aerodynamic field of boiler

Abstract

The embodiment of the invention provides a boiler cold-state aerodynamic field determination system and method, and belongs to the technical field of boiler detection. Comprising a moving mechanism capable of moving along the inner wall of the boiler; the bearing frame is arranged on the moving mechanism; the plurality of anemographs are used for measuring wind speed and wind direction data in the boiler, each anemograph is arranged on the bearing frame through a corresponding mounting mechanism, and the plurality of anemographs form an anemograph matrix on the bearing frame; and the processor is connected with each anemograph and is used for obtaining a cold-state aerodynamic field in the boiler based on the received wind speed and wind direction data. The device can replace manual work to measure the cold-state aerodynamic field of the boiler, and is high in measurement efficiency, accuracy and safety.

Description

Technical Field

[0001] The present invention relates to the technical field of boiler detection, and in particular to a system for determining a boiler cold air dynamic field and a method for determining a boiler cold air dynamic field. Background Art

[0002] In order to ensure the safe and smooth start-up of the boiler unit after the overhaul and renovation, a cold test of the boiler is usually carried out after the unit is overhauled. The cold air dynamic field can reveal the air flow distribution inside the boiler, and understanding the flow field distribution can help optimize the burner maintenance work, so that the fuel and air can be better mixed and the combustion efficiency can be improved; by analyzing the flushing of the water-cooled wall by the airflow in the furnace, it can also predict the location where coking may occur, which helps to take measures such as adjusting the burner angle and optimizing the air volume distribution to prevent the occurrence of coking and ensure the long-term stable operation of the boiler; by analyzing the airflow conditions near the water-cooled wall, high-temperature corrosion can be prevented, and by adjusting the air volume distribution and burner layout, the thermal stress on the water-cooled wall can be reduced to extend the service life of the boiler; in addition, it can also help operators optimize the air volume distribution of the primary and secondary air, so that the air and fuel are fully mixed, the combustion efficiency is improved, and the pollutant emissions are reduced. The cold air dynamic field test of the opposed-firing boiler usually includes inspection of the burner nozzle and angle verification, inspection of the damper and its adjustability, calibration and leveling of the primary air velocity, verification of the burner nozzle velocity, measurement of the characteristics of the burner recirculation zone, and measurement of the boiler wall velocity. Therefore, accurate measurement of the velocity near the water-cooled wall in the furnace and the velocity of each burner nozzle is the key link of the entire cold air dynamic field test.

[0003] At present, the boiler swirl burner used in the unit has a high installation height and a large span. When conducting cold aerodynamic field tests, a scaffolding or electric lifting platform at the same height as the burner must be manually built. In the process of measuring wind speed, the measurement personnel need to perform long-term high-altitude operations on the scaffolding or lifting platform, and the working time usually exceeds dozens of hours. The wind speed at the burner nozzle is high, and there is a great risk to personal safety for the measurement personnel in the limited space; and the measurement personnel are in a high noise, vibration and dust environment during the test. Long-term exposure to such an environment may cause damage to the hearing and balance systems of the test personnel. Summary of the invention

[0004] The purpose of the embodiments of the present invention is to provide a boiler cold air dynamic field determination system and determination method, so as to solve the problem that the swirl burner used in the current boiler unit has a high installation height and a large span. When conducting a cold air dynamic field test, a scaffolding or electric lifting platform at the same height as the burner must be manually built. In the process of measuring the wind speed, the measurement personnel need to perform long-term high-altitude operations on the scaffolding or lifting platform, and the working time usually exceeds dozens of hours. The wind speed at the burner nozzle is high, and there is a great personal safety risk for the measurement personnel in the limited space; and the measurement personnel are in a high noise, vibration and dust environment during the test. Long-term exposure to such an environment may cause damage to the hearing and balance systems of the detection personnel.

[0005] In order to achieve the above object, an embodiment of the present invention provides a system for determining a cold air dynamic field of a boiler, the system comprising: A moving mechanism capable of moving along the inner wall of the boiler; A carrier frame, arranged on the moving mechanism; A plurality of anemometers, used to measure wind speed and wind direction data in the boiler, each anemometer is arranged on the carrier frame through a corresponding mounting mechanism, and a plurality of anemometers form an anemometer matrix on the carrier frame; The processor is connected to each anemometer and is used to obtain the cold air dynamic field data in the boiler based on the received wind speed and direction data.

[0006] Optionally, the moving mechanism includes: The multiple wall-climbing robots are distributed in a rectangular structure and are connected to each other through connecting rods.

[0007] Optionally, the system further includes: The mobile control device is connected to each wall-climbing robot for generating control instructions based on external input signals to control the synchronous movement of multiple wall-climbing robots.

[0008] Optionally, the carrier frame includes: A rectangular frame is horizontally arranged on the mobile mechanism, wherein a plurality of support bars are arranged in a horizontal and vertical manner to form a grid structure having a plurality of installation spaces, and a plurality of anemometers are installed in corresponding installation spaces; At least one pull rod, two ends of which are respectively fixed to the edge of the rectangular frame body and the moving mechanism.

[0009] Optionally, the mounting mechanism includes: A connecting ring, and two F-shaped clamping blocks arranged opposite to each other on the outer wall of the connecting ring; The connecting ring is connected by snapping with a support bar forming a corresponding installation space or with a rectangular frame and a support bar forming a corresponding installation space through an F-shaped clamping block, and the anemometer is carried on the connecting ring.

[0010] Optionally, the system further includes: The shooting mechanism is arranged on the supporting frame through a supporting rod and is used for shooting the internal image of the boiler.

[0011] Optionally, the system further includes: The display mechanism is connected to the processor and the shooting mechanism, and is used to display the cold air dynamic field data of the boiler and the internal image of the boiler.

[0012] Optionally, the system further includes: The fill light mechanism is arranged on the support rod and is used for filling light when the shooting mechanism shoots images.

[0013] Optionally, the anemometer is a windmill anemometer.

[0014] On the other hand, an embodiment of the present invention further provides a method for determining a boiler cold air dynamic field, which is applied to the above-mentioned boiler cold air dynamic field determination system, and the method comprises: The moving mechanism is installed below the lowest burner nozzle on the inner wall of the boiler; Install anemometers on the carrier frame at preset intervals; After the installation is completed, start the boiler's primary fan, induced draft fan and forced draft fan; After a preset time, the moving mechanism is controlled to move along the inner wall of the boiler from bottom to top at a preset speed. During the movement of the moving mechanism, the wind speed and direction data are determined in real time using an anemometer to obtain wind speed and direction data of all areas in the boiler. Based on the wind speed and direction data of all areas in the boiler, the cold air dynamic field data in the boiler is obtained.

[0015] This technical solution can replace manual entry into the boiler to measure the cold air dynamic field of the boiler, and can avoid the situation where the need to build a lifting platform during manual inspection will affect the inspection results. It has high safety and can greatly improve the accuracy. By arranging anemometer matrices, the measurement efficiency can be effectively improved.

[0016] Other features and advantages of the embodiments of the present invention will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the embodiments of the present invention and constitute a part of the specification. Together with the following specific implementations, they are used to explain the embodiments of the present invention, but do not constitute a limitation on the embodiments of the present invention. In the accompanying drawings: Figure 1 It is a structural schematic diagram of a boiler cold air dynamic field determination system provided by the present invention; Figure 2 It is a structural schematic diagram of the carrier provided by the present invention; Figure 3 It is a structural schematic diagram of the installation mechanism provided by the present invention; Figure 4 It is a flow chart of the method for determining the cold air dynamic field of a boiler provided by the present invention.

[0018] Description of Reference Numerals 1-mobile mechanism; 101-boiler; 11-wall climbing robot; 12-connecting rod; 2-carrying frame; 201-installation space; 21- rectangular frame; 22- support bar; 23- tie rod; 3- anemometer; 4- mounting mechanism; 401- connection slot; 41-connecting ring; 42-F-type card block; 5-processor; 6-mobile control device; 7-shooting mechanism; 71-support rod; 8-display mechanism; 9-fill light mechanism. DETAILED DESCRIPTION

[0019] The specific implementation of the embodiment of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the embodiment of the present invention, and is not used to limit the embodiment of the present invention.

[0020] In the embodiments of the present invention, unless otherwise specified, directional words such as "up, down, left, right" generally refer to the directions or positional relationships shown in the accompanying drawings, or the directions or positional relationships in which the inventive product is usually placed when in use.

[0021] The terms “first”, “second”, “third”, etc. are merely used for distinguishing descriptions and should not be understood as indicating or implying relative importance.

[0022] The terms "parallel", "vertical", etc. do not mean that the components must be absolutely parallel or vertical, but can be slightly tilted. For example, "parallel" only means that its direction is more parallel than "vertical", and does not mean that the structure must be completely parallel, but can be slightly tilted.

[0023] The terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal, vertical or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0024] In addition, the terms "roughly" and "basically" are intended to explain that the relevant content does not require absolute precision, but can have certain deviations. For example, "roughly equal" does not only mean absolute equality. Since it is difficult to achieve absolute "equality" in actual production and operation, there are generally certain deviations. Therefore, in addition to absolute equality, "roughly equal" also includes the above-mentioned situation with certain deviations. Taking this as an example, in other cases, unless otherwise specified, the terms "roughly" and "basically" have similar meanings to the above.

[0025] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] Figure 1 It is a structural schematic diagram of a boiler cold air dynamic field determination system provided by the present invention; Figure 2 It is a structural schematic diagram of the carrier provided by the present invention; Figure 3 It is a structural schematic diagram of the installation mechanism provided by the present invention; Figure 4 It is a flow chart of the method for determining the cold air dynamic field of a boiler provided by the present invention.

[0027] like Figure 1 As shown, this embodiment provides a system for determining a cold air dynamic field of a boiler, the system comprising: The moving mechanism 1 is capable of moving along the inner wall of the boiler 101; A carrier frame 2, arranged on the moving mechanism 1; A plurality of anemometers 3, each anemometer 3 is arranged on the carrier 2 via a mounting mechanism 4, and an anemometer matrix is ​​formed on the carrier 2, and the anemometers 3 are used to determine wind speed and direction data in the boiler 101; The processor 5 is connected to each anemometer 3 and is used to obtain the cold air dynamic field data in the boiler 101 based on the received wind speed and direction data.

[0028] Specifically, in this embodiment, an anemometer matrix is ​​formed on the carrier 2, which can simultaneously measure the wind speed and direction data at different positions, thereby improving the efficiency of measurement; the mobile mechanism 1 drives the anemometer 3 on the carrier 2 to achieve height adjustment, and can measure the wind speed and direction data at different height positions; the processor 5 can be set on the carrier 2 or in the monitoring room, and finally obtain the cold air dynamic field in the boiler 101 by analyzing the received wind speed and direction data. The anemometer 3 is composed of anemometer blades, anemometer battery packs and sensors 13, which can adapt to different temperature and humidity environments and have strong anti-interference ability; when the airflow flows, the anemometer blades will rotate in the corresponding direction, and the faster the airflow flows, the faster the anemometer blades rotate. The processor 5 and each anemometer 3 are connected to each other through a wireless communication module. According to the structural data of the boiler, the internal coordinate system of the boiler is pre-constructed to form measurement points. After measuring the wind speed and direction data of all areas (all measurement points) in the boiler, the wind speed and direction data of each measurement point are integrated to finally form the cold air dynamic field data in the boiler.

[0029] In this embodiment, if Figure 1 As shown, the moving mechanism 1 comprises: The multiple wall-climbing robots 11 are distributed in a rectangular structure and are connected to each other via connecting rods 12 .

[0030] Preferably, the number of wall-climbing robots 11 is set to 4, and they are distributed in a rectangular structure, divided into two layers, and each wall-climbing robot 11 is connected to each other by a connecting rod 12, which can further ensure the structural strength and stability. The wall-climbing robot 11 adopts a magnetic wheel hub, which can be adsorbed on the metal water-cooled wall, and the wall-climbing robot 11 is equipped with a purge function, which cleans the scale attached to the water-cooled wall when crawling through the water-cooled wall, thereby enhancing the adsorption capacity of the wall-climbing robot 11. The power supply of the wall-climbing robot 11 is battery-powered, which can avoid the limitations and potential safety risks caused by wire power supply during the measurement process. The battery power supply allows the robot to have greater freedom of movement and can operate in complex or unwiring environments. The model of the wall-climbing robot is TRICH-SLB500, which adopts a magnetic wheel design and can carry a load of more than 40Kg per unit.

[0031] In this embodiment, if Figure 1 As shown, the system also includes: The mobile control device 6 is connected to each wall-climbing robot 11 for communication, and is used to generate a control instruction based on an external input signal, and control the wall-climbing robot 11 to move synchronously according to the control instruction.

[0032] Specifically, in order to realize the control of the wall-climbing robot 11, a mobile control device 6 is correspondingly provided. Through the buttons or touch screen provided on the mobile control device 6, the operator can input external input signals. The controller provided in the mobile control device 6 can convert the external input signals into corresponding control instructions, and realize synchronous control of the wall-climbing robot 11 based on the control instructions, so as to realize synchronous movement of the wall-climbing robot 11. More specifically, the mobile control device 6 can be provided as a remote controller, and the communication connection is realized through the wall-climbing robot signal repeater in the furnace and the wall-climbing robot signal receiver outside the furnace.

[0033] In this embodiment, if Figure 2 As shown, the carrier frame 2 includes: A rectangular frame 21 is horizontally arranged on the mobile mechanism 1, and a plurality of mutually perpendicular support bars 22 are arranged in the rectangular frame 21, and a plurality of installation spaces 201 for installing anemometers 3 are formed between the plurality of mutually perpendicular support bars 22 and between the support bars 22 at the edge and the rectangular frame 21; At least one pull rod 23, two ends of the pull rod 23 are respectively connected to the rectangular frame 21 and the moving mechanism 1.

[0034] Specifically, in order to be able to install multiple anemometers 3, the support frame 2 is configured to include a rectangular frame 21, and multiple mutually perpendicular support bars 22 are arranged in the rectangular frame 21, so as to form multiple rows of installation spaces 201 in the rectangular frame 21. In order to ensure the stability of the structure, at least one tie rod 23 is provided, and the two ends of the tie rod 23 are respectively connected to the rectangular frame 21 and the moving mechanism 1. Preferably, two tie rods 23 are provided, and are spaced apart on opposite sides of the rectangular frame 21. The support frame 2 is made of light steel, and holes are opened on the support frame 2 under the premise of ensuring rigidity, so as to reduce the resistance of the connecting rod passing through the burner nozzle, reduce the load of the wall-climbing robot 11, and increase the safety of the system.

[0035] More specifically, taking the arrangement of four wall-climbing robots 11 as an example, the four wall-climbing robots 11 form a rectangular structure, which is divided into two layers, wherein the rectangular frame 21 connects the wall-climbing robots 11 located at the lower layer, and the ends of the pull rods 23 connect the wall-climbing robots 11 located at the upper layer.

[0036] In another embodiment, the rectangular frame 21 and the moving mechanism 1 are installed in a rotatable connection manner using pins, bearings, etc., so that the rectangular frame 21 can rotate around the moving mechanism 1, and the pull rod 23 is configured as a telescopic rod (such as a threaded rod, etc.), and its two ends are also connected to the rectangular frame 21 and the moving mechanism 1 respectively using rotatable connection methods such as pins and bearings. In this way, the horizontality of the rectangular frame 21 can be adjusted by adjusting the telescopic amount of the pull rod 23; therefore, a spirit level is set at the edge of the rectangular frame 21 to detect the horizontality of the rectangular frame 21.

[0037] In this embodiment, if Figure 3 As shown, the mounting mechanism 4 comprises: A connecting ring 41, and two F-shaped clamping blocks 42 arranged opposite to each other on the outer wall of the connecting ring 41; The connecting ring 41 is connected to the support bar 22 forming the corresponding installation space 201 or to the rectangular frame 21 and the support bar 22 forming the corresponding installation space 201 through the F-shaped clamping block 42 , and the anemometer 3 is carried on the connecting ring 41 .

[0038] Specifically, in order to facilitate the installation and removal of the anemometer 3, ensure that the anemometer 3 can be stably installed on the rectangular frame 21, and at the same time not affect the determination result, the installation mechanism 4 is used to carry the anemometer 3, and then the installation mechanism 4 is installed on the rectangular frame 21, the diameter of the connecting ring 41 is slightly larger than the diameter of the anemometer 3, so that the anemometer 3 can be clamped on the connecting ring 41, and the diameter of the connecting ring 41 is smaller than the length and width of the installation space 201, so that after the anemometer 3 is installed, there is a gap between the anemometer 3 and the rectangular frame 21 as an airflow channel to avoid affecting the determination result; in order to ensure the stable fixation between the connecting ring 41 and the rectangular frame 21, two F-type blocks 42 are relatively arranged on the outer wall of the connecting ring 41. When installing, press the F-type block 42 so that the rectangular frame 21 is clamped into the receiving groove of the F-type block 42, which can not only achieve rapid installation and removal, but also ensure structural strength. Under the premise of ensuring stability and safety, the installation mechanism 4 is made of stainless steel with a thickness of no more than 1mm, which helps to reduce the overall weight, thereby reducing the burden of the wall-climbing robot 11.

[0039] More specifically, when an anemometer 3 is required to be installed in each installation space 201, in order to avoid the installation mechanisms 4 of two adjacent installation spaces 201 from interfering with each other and causing the installation to fail, the extension lines of the two F-shaped blocks 42 of the installation mechanisms 4 in any two adjacent installation spaces 201 are set to be perpendicular to each other. For the installation space 201 in the middle, the two F-shaped blocks 42 of the installation mechanism 4 are only engaged with the support bar 22; for the installation space 201 located at the edge, the two F-shaped blocks 42 of the installation mechanism 4 are respectively engaged with the rectangular frame 21 and the support bar 22.

[0040] In another embodiment, the installation mechanism 4 directly adopts a spring-type joint, which can quickly realize the assembly and disassembly of the anemometer 3.

[0041] In this embodiment, if Figure 1 As shown, the system also includes: The photographing mechanism 7 is arranged on the supporting frame 2 via a supporting rod 71 and is used for photographing the internal image of the boiler.

[0042] Specifically, in order to obtain the state of the water-cooled wall, a shooting mechanism 7 is set to shoot the internal image of the boiler; in order to ensure the shooting quality, preferably, the shooting mechanism 7 uses an infrared camera. Specifically, multiple cameras can be set to achieve simultaneous acquisition of angles.

[0043] In this embodiment, if Figure 1 As shown, the system also includes: The display mechanism 8 is connected to the processor 5 and the photographing mechanism 7 and is used to display the cold air dynamic field data of the boiler 101 and the internal image of the boiler.

[0044] Specifically, the display mechanism 8 is arranged outside the boiler 101, preferably, arranged in the monitoring room, and the display mechanism 8 is used to display the cold air dynamic field of the boiler 101 and the internal image of the boiler to realize remote monitoring.

[0045] In this embodiment, if Figure 1 As shown, the system also includes: The fill light mechanism 9 is arranged on the support rod 71 and is used for filling light when the shooting mechanism 7 shoots images.

[0046] Specifically, since the boiler 101 is dark, a fill light mechanism 9 is provided on the support rod 71 to fill light during the process of the shooting mechanism 7 shooting images, so as to ensure the quality of the image shooting, so as to accurately understand the internal conditions of the boiler 101. Preferably, the fill light mechanism 9 uses an LED light source.

[0047] In this embodiment, the anemometer 3 is a windmill anemometer instead of a three-cup anemometer or a vane anemometer. Since the power field in the boiler 101 is a high-dust environment, the blades of the windmill anemometer are not prone to dust accumulation, ensuring the accuracy of wind speed determination.

[0048] like Figure 4 As shown, this embodiment also provides a method for determining a boiler cold air dynamic field, which is applied to the above-mentioned boiler cold air dynamic field determination system, and the method includes: The moving mechanism is installed below the lowest burner nozzle on the inner wall of the boiler; Install anemometers on the carrier frame at preset intervals; After the installation is completed, start the boiler's primary fan, induced draft fan and forced draft fan; After a preset time, the moving mechanism is controlled to move along the inner wall of the boiler from bottom to top at a preset speed. During the movement of the moving mechanism, the wind speed and direction data are determined in real time using an anemometer to obtain wind speed and direction data of all areas in the boiler. Based on the wind speed and direction data of all areas in the boiler, the cold air dynamic field data in the boiler is obtained.

[0049] Specifically, in the embodiment, first, according to the structural data of the boiler, the internal coordinate system of the boiler is pre-constructed to form measurement points; the system is tested and calibrated outside the boiler; before the start of the cold air dynamic field test of the boiler, the mobile mechanism (wall-climbing robot) is fixed on the water-cooled wall of the boiler furnace by wind adsorption, and is preferably arranged at the lower position of the lowest burner to achieve comprehensive measurement; according to the preset measurement interval, the anemometer unit is installed on the carrier; after the installation is completed, the status of various equipment is confirmed and the safety inspection is completed. After the inspection, the fan, induced draft fan, forced draft fan and other equipment are started once to construct the cold air dynamic field in the furnace; after a preset period of time, when the unit is running stably, the mobile mechanism (wall-climbing robot) is manually operated to collect the wind speed of all measurement points of the aerodynamic field of the entire water-cooled wall from bottom to top, from left to right, and from front to back along the water-cooled wall of the furnace. After measuring the wind speed and direction data of all areas (all measurement points) in the boiler, the wind speed and direction data of each measurement point are integrated to finally form the cold air dynamic field data in the boiler.

[0050] The method further includes: When passing through the swirl burner, adjust the height of the wall-climbing robot so that the connecting rod of the wall-climbing robot crosses the combustion nozzle, finely adjust the matrix windmill to the center of the burner nozzle, and the windmill anemometer can quickly collect the nozzle flow field conditions. The operator adjusts the swirl burner damper opening according to the test outline requirements and gradually completes the detection test of the damper characteristics of the entire burner. During the data collection process, the anemometer in the recirculation zone of the burner outlet and other anemometers will have different rotation directions. The boiler interior is modeled to obtain the measurement points. By calculating the forward and reverse coordinate points, the size of the recirculation zone of the burner nozzle can be intuitively drawn.

[0051] The optional implementation modes of the embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the embodiments of the present invention are not limited to the specific details in the above implementation modes. Within the technical concept of the embodiments of the present invention, various simple modifications can be made to the technical scheme of the embodiments of the present invention, and these simple modifications all belong to the protection scope of the embodiments of the present invention.

[0052] Those skilled in the art can understand that all or part of the steps in the above-mentioned embodiment method can be completed by instructing the relevant hardware through a program, and the program is stored in a storage medium, including several instructions for making a single-chip microcomputer, a chip or a processor (processor) perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk and other media that can store program codes.

[0053] The optional embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the embodiments of the present invention are not limited to the specific details in the above embodiments. Within the technical concept of the embodiments of the present invention, the technical scheme of the embodiments of the present invention can be subjected to a variety of simple modifications, and these simple modifications all belong to the protection scope of the embodiments of the present invention. It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner when there is no contradiction. In order to avoid unnecessary repetition, the embodiments of the present invention will not further describe various possible combinations. In addition, various implementation modes of the embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the embodiments of the present invention, they should also be regarded as the contents disclosed by the embodiments of the present invention.

Claims

1. A boiler cold air dynamic field determination system, characterized in that: The system comprises: A moving mechanism (1) capable of moving along the inner wall of the boiler (101); A carrier frame (2) arranged on the moving mechanism (1); A plurality of anemometers (3) for measuring wind speed and direction data in the boiler (101), each anemometer (3) being arranged on the carrier (2) via a corresponding mounting mechanism (4), and the plurality of anemometers (3) forming an anemometer matrix on the carrier (2); The processor (5) is connected to each anemometer (3) and is used to obtain cold air dynamic field data in the boiler (101) based on the received wind speed and direction data.

2. The boiler cold air dynamic field determination system according to claim 1, characterized in that: The moving mechanism (1) comprises: A plurality of wall-climbing robots (11) are distributed in a rectangular structure and are connected to each other via connecting rods (12).

3. The boiler cold air dynamic field determination system according to claim 2, characterized in that: The system further comprises: The mobile control device (6) is connected to each wall-climbing robot (11) for generating a control instruction based on an external input signal to control the synchronous movement of the multiple wall-climbing robots (11).

4. The boiler cold air dynamic field determination system according to claim 1, characterized in that: The carrier frame (2) comprises: A rectangular frame (21) is horizontally arranged on the mobile mechanism (1), wherein a plurality of support bars (22) are arranged in a cross-sectional and longitudinal manner in the rectangular frame (21) to form a grid structure having a plurality of installation spaces (201), and a plurality of anemometers (3) are installed in corresponding installation spaces (201); At least one pull rod (23), two ends of the pull rod (23) being respectively fixed to the edges of the rectangular frame (21) and the moving mechanism (1).

5. The boiler cold air dynamic field determination system according to claim 4, characterized in that: The mounting mechanism (4) comprises: A connecting ring (41), and two F-shaped clamping blocks (42) arranged opposite to each other on the outer wall of the connecting ring (41); The connecting ring (41) is connected to a support bar (22) forming a corresponding installation space (201) or to a rectangular frame (21) and a support bar (22) forming a corresponding installation space (201) through an F-shaped clamping block (42), and the anemometer (3) is carried on the connecting ring (41).

6. The boiler cold air dynamic field determination system according to claim 1, characterized in that: The system further comprises: The photographing mechanism (7) is arranged on the supporting frame (2) via a supporting rod (71) and is used to photograph the interior of the boiler.

7. The boiler cold air dynamic field determination system according to claim 6, characterized in that: The system further comprises: A display mechanism (8) is connected to the processor (5) and the photographing mechanism (7) and is used to display the cold air dynamic field data of the boiler (101) and an image of the interior of the boiler.

8. The boiler cold air dynamic field determination system according to claim 6, characterized in that: The system further comprises: A fill light mechanism (9) is arranged on the support rod (71) and is used to provide fill light during the process of the shooting mechanism (7) shooting an image.

9. The boiler cold air dynamic field determination system according to claim 1, characterized in that: The anemometer (3) is a windmill-type anemometer.

10. A method for determining a boiler cold air dynamic field, applied to a boiler cold air dynamic field determination system according to any one of claims 1 to 9, characterized in that: The method comprises: The moving mechanism is installed below the lowest burner nozzle on the inner wall of the boiler; Install anemometers on the carrier frame at preset intervals; After the installation is completed, start the boiler's primary fan, induced draft fan and forced draft fan; After a preset time, the moving mechanism is controlled to move along the inner wall of the boiler from bottom to top at a preset speed. During the movement of the moving mechanism, the wind speed and direction data are determined in real time using an anemometer to obtain wind speed and direction data of all areas in the boiler. Based on the wind speed and direction data of all areas in the boiler, the cold air dynamic field data in the boiler is obtained.

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