CN112413616A - Automatic temperature field measurement soot blowing system of high-temperature boiler - Google Patents
Automatic temperature field measurement soot blowing system of high-temperature boiler Download PDFInfo
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- CN112413616A CN112413616A CN202011098350.8A CN202011098350A CN112413616A CN 112413616 A CN112413616 A CN 112413616A CN 202011098350 A CN202011098350 A CN 202011098350A CN 112413616 A CN112413616 A CN 112413616A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J1/00—Removing ash, clinker, or slag from combustion chambers
- F23J1/06—Mechanically-operated devices, e.g. clinker pushers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J3/00—Removing solid residues from passages or chambers beyond the fire, e.g. from flues by soot blowers
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/02—Means for indicating or recording specially adapted for thermometers
- G01K1/024—Means for indicating or recording specially adapted for thermometers for remote indication
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/02—Means for indicating or recording specially adapted for thermometers
- G01K1/026—Means for indicating or recording specially adapted for thermometers arrangements for monitoring a plurality of temperatures, e.g. by multiplexing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/02—Means for indicating or recording specially adapted for thermometers
- G01K1/028—Means for indicating or recording specially adapted for thermometers arrangements for numerical indication
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
- G01K11/32—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in transmittance, scattering or luminescence in optical fibres
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
- Radiation Pyrometers (AREA)
Abstract
An automatic temperature field measurement soot blowing system of a high-temperature boiler comprises an automatic soot blowing module, a modulation and demodulation module, a computer control module, an automatic cooling and accelerated circulation module, a transmission optical fiber, a temperature measuring rod, a high-temperature measuring probe and a low-temperature measuring probe; the temperature measuring rod comprises a central layer and an outer side of the hollow mechanism, the central layer is provided with transmission optical fibers, the transmission optical fibers are connected with the modulation and demodulation module, a plurality of low-temperature measuring probes are arranged in the outer layer of the temperature measuring rod, and a plurality of high-temperature measuring probes are arranged on the outer side wall of the temperature measuring rod; the modulation and demodulation transmits a laser light source through a transmission optical fiber, and the automatic soot blowing module blows high-temperature and high-pressure water vapor into the boiler; the automatic cooling accelerated circulation module is connected with the outer layer of the temperature measuring rod; the computer control module controls the modem, the automatic soot blowing module, the automatic cooling and accelerating circulation module and the temperature measuring rod. The invention can realize three-dimensional temperature measurement in the high-temperature boiler, and has high temperature measurement precision and quick response.
Description
Technical Field
The invention relates to the field of automatic soot blowing of high-temperature boilers in power plants, in particular to an automatic temperature field measurement soot blowing system of a high-temperature boiler.
Background
With the common use of domestic high-temperature boilers, the problems that the boiler of a coal power plant is not fully combusted, the power generation efficiency is low and the problem is headache are solved. The most important reason is that the soot blowing process is not performed in time. When the average temperature value is larger than 550 ℃, the computer control module starts a soot blowing system to blow high-temperature and high-pressure water vapor into the boiler to blow off coal slag and the like covering the inner wall of the boiler, so that the coal slag is fully combusted again.
However, the high temperature field temperature measurement method of the common boiler adopts the thermistor to collect the temperatures of different parts in the boiler point by point, and reversely deduces the change of the temperature field. However, the thermistor can only measure the temperature in a single point, and it is almost impossible to obtain the temperature of the three-dimensional temperature field of the boiler in real time.
Disclosure of Invention
The invention provides an automatic temperature field measurement soot blowing system for a high-temperature boiler, which aims to solve the problems of low instantaneity, low temperature measurement precision and untimely soot blowing treatment of the traditional boiler temperature measurement system in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
an automatic temperature field measurement soot blowing system of a high-temperature boiler comprises an automatic soot blowing module, a modulation and demodulation module, a computer control module, an automatic cooling and accelerated circulation module, a transmission optical fiber, a temperature measuring rod, a high-temperature measuring probe and a low-temperature measuring probe; wherein the content of the first and second substances,
the temperature measuring rod is of a double-layer structure, the central layer and the outer layer of the temperature measuring rod are of hollow structures, a transmission optical fiber is arranged on the central layer, a plurality of fused biconical taper optical splitters are arranged on the transmission optical fiber, the transmission optical fiber is connected with the modulation and demodulation module, a plurality of low-temperature measuring probes are uniformly arranged in the outer layer of the temperature measuring rod, each low-temperature measuring probe is connected with one fused biconical taper optical splitter, a plurality of high-temperature measuring probes are uniformly arranged on the outer side wall of the outer layer of the temperature measuring rod, and each high-temperature measuring probe is connected with one fused biconical; the temperature measuring rod is inserted into the high-temperature boiler along the radial direction of the high-temperature boiler;
the modulation and demodulation module is connected with the transmission optical fiber and generates a laser light source, the laser light source is transmitted to the low-temperature measuring probe and the high-temperature measuring probe through the transmission optical fiber, and the modulation and demodulation module receives reflected optical signals and processes the optical signals into digital signals;
the automatic soot blowing module is connected with the computer control module and is used for blowing high-temperature and high-pressure water vapor into the boiler;
the automatic cooling accelerated circulation module is connected with the outer layer of the temperature measuring rod and used for injecting cooling water or cooling gas into the outer layer of the temperature measuring rod and controlling the temperature of the temperature measuring rod;
the computer control module is respectively connected with the modulation and demodulation module, the automatic soot blowing module, the automatic cooling and accelerating circulation module and the temperature measuring rod, and by receiving digital signals output by the modulation and demodulation module, the automatic cooling and accelerating circulation module is controlled to control the circulation speed of cooling water or cooling gas, the automatic soot blowing module is controlled to be started, and the temperature measuring rod is controlled to move at a constant speed along the radial direction of the high-temperature boiler.
Furthermore, the low-temperature measuring probe consists of a single-mode quartz optical fiber etched with an F-P cavity or an FBG.
Furthermore, the high-temperature measuring probe is formed by connecting a section of sapphire fiber etched with an F-P cavity or an FBG with a section of single-mode quartz fiber through a high-temperature-resistant ceramic ferrule.
Preferably, the transmission fiber is a single-mode silica fiber.
Furthermore, the temperature measuring rods are distributed around the circumference of the high-temperature boiler and are vertically distributed along the axial direction of the high-temperature boiler.
Furthermore, the outer end of the temperature measuring rod, which is positioned in the high-temperature boiler, is connected with a pushing and withdrawing mechanism so as to adjust the radial insertion depth of the temperature measuring rod in the high-temperature boiler.
Further, when the computer control module measures that the average temperature in the high-temperature boiler is higher than 550 ℃ through the high-temperature measuring probe, the computer control module starts the automatic soot blowing module;
when the measured average temperature is equal to or less than 550 ℃, the computer control module stops the automatic soot blowing module.
Further, when the computer control module measures that the temperature of the outer layer of the temperature measuring rod is higher than 70 ℃ through the low-temperature measuring probe, the computer control module starts the automatic cooling accelerating circulation module to inject cooling water or cooling gas into the outer layer of the temperature measuring rod to cool the temperature measuring rod.
Further, the computer control module controls the internal temperature of the temperature measuring rod to be maintained at-40 ℃ to 70 ℃ through the automatic cooling and accelerating circulation module.
Compared with the prior art, the invention has the beneficial effects that:
1. the automatic temperature field measuring and soot blowing system with the circulating cooling system is used for collecting and analyzing the high temperature in the boiler of the power plant, so that the low efficiency, inaccuracy and real-time use of the conventional thermocouple temperature measuring system in a high-temperature occasion are avoided. The invention is formed by combining a plurality of temperature measuring rods, a plurality of high-temperature measuring probes and low-temperature measuring probes are arranged on each temperature measuring rod at equal intervals, and the temperature fields under a plurality of sections of the boiler can be measured in real time during working, so that the average temperature of the three-dimensional temperature field of the whole high-temperature boiler can be calculated. The temperature measurement precision is high, and the response is fast, safe and reliable.
2. The automatic temperature field measuring and soot blowing system can automatically measure the temperature in real time and blow away the coal cinder on the inner wall of the boiler. The system does not need manual measurement and manual soot blowing starting, and is a full-automatic system.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural diagram of a low-temperature measuring probe according to the present invention;
FIG. 3 is a schematic structural diagram of a high-temperature measuring probe according to the present invention;
FIG. 4 is a schematic view of the distribution of temperature measuring rods around the circumference of a high temperature boiler according to the present invention;
FIG. 5 is a schematic view showing the vertical distribution of temperature measuring rods along the axis of a high temperature boiler according to the present invention;
in the figure: 1 modulation and demodulation module, 2 computer control module, 3 high temperature boiler, 4 automatic cooling and accelerating circulation module, 5 automatic soot blowing module, 6 high temperature probe, 7 low temperature probe, 8 transmission fiber, 9 temperature measuring rod, 901 center layer, 902 outer layer, 10 fused biconical taper optical splitter, 11 sapphire fiber etched with F-P cavity or FBG, 12 high temperature resistant ceramic ferrule, 13 single mode quartz fiber, 14 single mode quartz fiber etched with F-P cavity or FBG.
Detailed Description
Example (b): referring to fig. 1, an automatic temperature field measurement soot blowing system for a high-temperature boiler comprises an automatic soot blowing module 5, a modulation and demodulation module 1, a computer control module 2, an automatic cooling and accelerated circulation module 4, a transmission optical fiber 8, a temperature measuring rod 9, a high-temperature measuring probe 6 and a low-temperature measuring probe 7.
The temperature measuring rod 9 is of a double-layer structure, preferably made of high-temperature-resistant metal materials, the inner part of the temperature measuring rod is a central layer 901, the central layer 901 is of a hollow structure, the outer part of the central layer 901 is an outer layer 902, and the outer layer 902 is of a hollow structure. The transmission optical fiber 8 is arranged in the central layer 901, preferably, the transmission optical fiber 8 is a single-mode quartz optical fiber, the transmission optical fiber 8 is used for transmitting optical signals, an optical fiber fused biconical taper optical splitter 10 with a specific splitting ratio is arranged on the transmission optical fiber 8 at regular intervals, and the transmission optical fiber 8 is connected with the modem module 1.
A plurality of low-temperature measuring probes 7 are uniformly arranged in the outer layer 902 of the temperature measuring rod 9, the low-temperature measuring probes 7 are fixed on the inner wall of the temperature measuring rod 9, referring to fig. 2, the low-temperature measuring probes 7 are composed of single-mode quartz optical fibers 14 with F-P cavities or FBGs etched, each low-temperature measuring probe 7 is connected with one fused biconical taper optical splitter 10, the single-mode optical fibers on the low-temperature measuring probes 7 are fused with the leading-out optical fibers of the single-mode optical fibers on the fused biconical taper optical splitter 10 on the transmission optical fibers 8, and the low-temperature measuring probes 7 are used for measuring the internal temperature of the. The outer side wall of the outer layer 902 of the temperature measuring rod 9 is uniformly provided with a plurality of high temperature measuring probes 6, referring to fig. 3, the high temperature measuring probes 6 are formed by connecting a small section of sapphire optical fiber 11 with an F-P cavity or an FBG cavity etched thereon and a large section of single mode quartz optical fiber 13 through high temperature resistant ceramic ferrules 12, the high temperature measuring probes 6 are embedded in the outer side wall and used for measuring the high temperature field inside the high temperature boiler 3, each high temperature measuring probe 6 is connected with one fused biconical taper optical splitter 10, and the single mode optical fiber on the high temperature measuring probe 6 is fused with the leading-out optical fiber of the single mode optical fiber on the fiber fused biconical taper optical splitter 10 on the transmission optical. The number of the melting tapered optical splitters 10 is equal to the sum of the number of the high-temperature measuring probes 6 and the number of the low-temperature measuring probes 7.
Referring to fig. 4 and 5, the temperature measuring rods 9 are radially inserted into the high-temperature boiler 3 along the high-temperature boiler 3, the temperature measuring rods 9 are provided with a plurality of temperature measuring rods, the temperature measuring rods 9 are circumferentially distributed around the high-temperature boiler 3, and meanwhile, the temperature measuring rods 9 are vertically distributed along the axial direction of the high-temperature boiler 3; when the temperature measuring rod 9 surrounds the circumference of the high-temperature boiler 3 and is distributed, the temperature measuring rod 9 is integrally located on the same plane, when the temperature measuring rod 9 is vertically distributed along the axial direction of the high-temperature boiler 3, the temperature measuring rod 9 is located on the same vertical plane or located on different vertical planes in a crossed manner, and the temperature measuring rod 9 arranged in the way can perform a temperature field on a plurality of cross sections inside the whole high-temperature boiler 3 in a three-dimensional manner to calculate the average temperature of the three-dimensional temperature field of the whole high-temperature boiler 3, so that the temperature measuring precision is high, the response is fast, and the temperature measuring device is safe and.
Furthermore, the temperature measuring rod 9 is connected with a pushing and withdrawing mechanism at the outer end of the high-temperature boiler 3, and the pushing and withdrawing mechanism adopts a motor-driven or cylinder-driven or oil cylinder-driven pushing and withdrawing mode in the prior art to drive the temperature measuring rod 9 to move at a uniform speed in the radial direction in the high-temperature boiler 3, so that the temperature measuring range of the temperature measuring rod 9 can be enlarged.
Referring to fig. 1, one end of the modulation and demodulation module 1 is connected to the transmission optical fiber 8, and the other end is connected to the computer control module 2, the modulation and demodulation module 1 generates a laser light source, transmits the laser light source to the low temperature measurement probe 7 and the high temperature measurement probe 6 through the transmission optical fiber 8, receives a reflected optical signal, processes the optical signal into a digital signal, and transmits the digital signal to the computer control module 2.
The automatic soot blowing module 5 is connected with the computer control module 2 and is used for blowing high-temperature and high-pressure water vapor into the boiler; the automatic cooling and accelerating circulation module 4 is connected with the outer layer 902 of the temperature measuring rod 9 and is used for injecting cooling water or cooling gas into the outer layer 902 of the temperature measuring rod 9 to control the temperature of the temperature measuring rod 9. It should be understood that the automatic soot blowing module 5 is already used in the existing soot blowing system of the high-temperature boiler 3, and the existing automatic soot blowing module 5 is also adopted in the present invention, and the control can be realized only by adding a corresponding control program into the computer control module 2.
The computer control module 2 is respectively connected with the computer control module 2, the automatic soot blowing module 5, the automatic cooling and accelerating circulation module 4 and the temperature measuring rod 9, and by receiving digital signals output by the computer control module 2, on one hand, the automatic cooling and accelerating circulation module is controlled to control the circulation speed of cooling water or cooling gas, on the other hand, the automatic soot blowing module 5 is controlled to be started, and on the other hand, the temperature measuring rod 9 is controlled to move at a constant speed along the radial direction of the high-temperature boiler 3. It should be understood that the control operation by the computer belongs to the common technical means in the industrial field, and the control of the computer control module 2 to other modules can be realized only by programming a specific program in the invention.
The automatic cooling and accelerating circulation module 4 is connected with the outer layer 902 of the temperature measuring rod 9 and is used for injecting cooling water or cooling gas into the outer layer 902 of the temperature measuring rod 9 to control the temperature of the temperature measuring rod 9. The automatic cooling and accelerating circulation module 4 is connected with the outer side of the temperature measuring rod 9 through a pipeline by adopting a water pump or an air pump. It should be understood that although not shown in fig. 1, the temperature measuring rod 9 is provided with a circulation port for cooling water or cooling gas to facilitate the introduction and discharge of the cooling water or cooling gas, and the circulation port is connected to a corresponding pipeline. When cooling gas is used, the automatic cooling accelerated circulation module 4 is provided with a corresponding cooling system to cool the cooling gas, which belongs to the technical means in the chemical industry field, the cooling gas can be cooled to-40 ℃ by the cooling system, and preferably, the cooling gas is nitrogen.
The working principle of the invention for measuring the temperature of the high-temperature boiler pipeline in the power plant is as follows: firstly, a laser light source is emitted by a modulation and demodulation module 1, an optical signal is transmitted to a high-temperature measuring probe 6 and a low-temperature measuring probe 7 which are connected with the modulation and demodulation module by a transmission optical fiber 8, at the moment, a computer control module 2 controls a temperature measuring rod 9 to enter from a temperature measuring port on the side surface of a boiler for radial measurement, a plurality of temperature measuring rods of the system can measure temperature fields under a plurality of cross sections at one time in real time and feed back to the modulation and demodulation module 1 for data conversion in time, the modulation and demodulation module 1 converts the optical signal into a digital signal and then transmits the digital signal to the computer control module 2 for processing by a mathematical fitting method to obtain an average three-dimensional temperature field of. In the measuring process, when the temperature in the temperature measuring rod 4 measured by the low-temperature measuring probe 7 is higher than 70 ℃, the computer control module 2 controls the automatic cooling and accelerating circulation module 4 to inject ice water or ultralow-temperature nitrogen into the rod, the internal temperature of the rod is kept between-40 ℃ and 70 ℃, the bending deformation of the temperature measuring rod and the functional effectiveness of components are prevented, and the temperature of the temperature measuring rod cannot influence the measuring result of the temperature measuring probe due to the adoption of optical fiber transmission signals. When the average three-dimensional temperature field in the boiler measured by the high-temperature measuring probe 6 is larger than 550 ℃, the computer control module 2 starts the soot blowing module 5 to blow high-temperature and high-pressure water vapor into the boiler to blow away coal slag and the like covered on the inner wall of the boiler, so that the coal slag is combusted again, and if the temperature is lower than or equal to 550 ℃, the change of the temperature field in the boiler is continuously monitored.
The invention mainly uses the optical fiber temperature sensor, wherein the optical fiber F-P cavity temperature sensor indirectly realizes the measurement of the temperature by establishing the functional relation between the offset of the peak wavelength of the reflection spectrum of the sensing signal and the variation of the temperature to be measured. In order to obtain a high-precision temperature, the wavelength peak searching is required to be carried out on the spectrum signal, and the peak searching precision is an important index for determining the performance of the sensor. The first step is to perform noise reduction processing on the spectrum signal, and to use the least square method to simply obtain unknown data and minimize the sum of squares of the differences between the obtained data and actual data, so as to achieve the characteristic of noise reduction. And then processing by using a multimodal Gaussian fitting algorithm to determine unit length, dividing a plurality of peaks into a plurality of single peaks, performing Gaussian fitting analysis, and then comparing and analyzing the group of peaks with the minimum deviation or meeting the error requirement, wherein the minimum multimodal fitting method is the peak searching algorithm for the F-P cavity multimodal reflection sensing signal spectrum researched by the invention and can indirectly meet the temperature measurement requirement.
The examples are the main problems to which the present invention is directed, but the protection is not limited to the above-described embodiments. Also, various changes and modifications of the present invention may be made by those skilled in the art without departing from the scope and spirit of the present invention, and these are intended to be covered by the scope of the present invention.
Claims (9)
1. The utility model provides a high temperature boiler automatic temperature field measures soot blowing system, includes automatic soot blowing module, its characterized in that: the device also comprises a modulation and demodulation module, a computer control module, an automatic cooling accelerated circulation module, a transmission optical fiber, a temperature measuring rod, a high-temperature measuring probe and a low-temperature measuring probe; wherein the content of the first and second substances,
the temperature measuring rod is of a double-layer structure, the central layer and the outer layer of the temperature measuring rod are of hollow structures, a transmission optical fiber is arranged on the central layer, a plurality of fused biconical taper optical splitters are arranged on the transmission optical fiber, the transmission optical fiber is connected with the modulation and demodulation module, a plurality of low-temperature measuring probes are uniformly arranged in the outer layer of the temperature measuring rod, each low-temperature measuring probe is connected with one fused biconical taper optical splitter, a plurality of high-temperature measuring probes are uniformly arranged on the outer side wall of the outer layer of the temperature measuring rod, and each high-temperature measuring probe is connected with one fused biconical; the temperature measuring rod is inserted into the high-temperature boiler along the radial direction of the high-temperature boiler;
the modulation and demodulation module is connected with the transmission optical fiber and generates a laser light source, the laser light source is transmitted to the low-temperature measuring probe and the high-temperature measuring probe through the transmission optical fiber, and the modulation and demodulation module receives reflected optical signals and processes the optical signals into digital signals;
the automatic soot blowing module is connected with the computer control module and is used for blowing high-temperature and high-pressure water vapor into the boiler;
the automatic cooling accelerated circulation module is connected with the outer layer of the temperature measuring rod and used for injecting cooling water or cooling gas into the outer layer of the temperature measuring rod and controlling the temperature of the temperature measuring rod;
the computer control module is respectively connected with the modulation and demodulation module, the automatic soot blowing module, the automatic cooling and accelerating circulation module and the temperature measuring rod, and by receiving digital signals output by the modulation and demodulation module, the automatic cooling and accelerating circulation module is controlled to control the circulation speed of cooling water or cooling gas, the automatic soot blowing module is controlled to be started, and the temperature measuring rod is controlled to move at a constant speed along the radial direction of the high-temperature boiler.
2. The automatic temperature field measurement soot-blowing system of the high-temperature boiler according to claim 1, characterized in that: the low-temperature measuring probe consists of a single-mode quartz optical fiber etched with an F-P cavity or an FBG.
3. The automatic temperature field measurement soot-blowing system of the high-temperature boiler according to claim 1, characterized in that: the high-temperature measurement probe is formed by connecting a section of sapphire optical fiber etched with an F-P cavity or an FBG with a section of single-mode quartz optical fiber through a high-temperature-resistant ceramic ferrule.
4. A high temperature boiler automatic temperature field measurement soot blowing system according to claim 1, 2 or 3, characterized in that: the transmission fiber adopts a single-mode quartz fiber.
5. The automatic temperature field measurement soot-blowing system of the high-temperature boiler as claimed in claim 4, wherein: the temperature measurement device comprises a plurality of temperature measurement rods, wherein the temperature measurement rods are distributed around the circumference of the high-temperature boiler and are vertically distributed along the axial direction of the high-temperature boiler.
6. The automatic temperature field measurement soot-blowing system of the high-temperature boiler as claimed in claim 5, wherein: the outer end of the temperature measuring rod, which is positioned in the high-temperature boiler, is connected with a pushing and withdrawing mechanism so as to adjust the radial insertion depth of the temperature measuring rod in the high-temperature boiler.
7. A high temperature boiler automatic temperature field measurement soot blowing system according to claim 1, 2 or 3, characterized in that: when the computer control module measures that the average temperature in the high-temperature boiler is more than 550 ℃ through the high-temperature measuring probe, the computer control module starts the automatic soot blowing module;
when the measured average temperature is equal to or less than 550 ℃, the computer control module stops the automatic soot blowing module.
8. A high temperature boiler automatic temperature field measurement soot blowing system according to claim 1, 2 or 3, characterized in that: when the outer layer temperature of the temperature measuring rod measured by the computer control module through the low-temperature measuring probe is higher than 70 ℃, the computer control module starts the automatic cooling accelerated circulation module to inject cooling water or cooling gas into the outer layer of the temperature measuring rod to cool the temperature measuring rod.
9. A high temperature boiler automatic temperature field measurement soot blowing system according to claim 1, 2 or 3, characterized in that: the computer control module controls the internal temperature of the temperature measuring rod to be maintained at-40 ℃ to 70 ℃ through the automatic cooling accelerated circulation module.
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