CN108254080A - The system and method in station boiler temperature field is established using gas infra-red radiation superimposed characteristics - Google Patents

The system and method in station boiler temperature field is established using gas infra-red radiation superimposed characteristics Download PDF

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Publication number
CN108254080A
CN108254080A CN201810102018.0A CN201810102018A CN108254080A CN 108254080 A CN108254080 A CN 108254080A CN 201810102018 A CN201810102018 A CN 201810102018A CN 108254080 A CN108254080 A CN 108254080A
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China
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temperature
boiler
furnace
double color
measuring instrument
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CN201810102018.0A
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CN108254080B (en
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房山巍
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Safe Heat Control System Co Ltd Of Tianjin Dare
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Safe Heat Control System Co Ltd Of Tianjin Dare
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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/0044Furnaces, ovens, kilns
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23NREGULATING OR CONTROLLING COMBUSTION
    • F23N5/00Systems for controlling combustion
    • F23N5/02Systems for controlling combustion using devices responsive to thermal changes or to thermal expansion of a medium
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/0014Radiation pyrometry, e.g. infrared or optical thermometry for sensing the radiation from gases, flames
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J5/00Radiation pyrometry, e.g. infrared or optical thermometry
    • G01J5/80Calibration
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23NREGULATING OR CONTROLLING COMBUSTION
    • F23N2225/00Measuring
    • F23N2225/08Measuring temperature

Abstract

The system and method for the invention that gas infra-red radiation superimposed characteristics is utilized to establish station boiler temperature field belongs to establishes station boiler temperature field technical field using gas infra-red radiation superimposed characteristics;Technical problem to be solved is:A kind of system and method that station boiler temperature field is established using gas infra-red radiation superimposed characteristics is provided;Solve technical solution that the technical problem uses for:The system for establishing station boiler temperature field using gas infra-red radiation superimposed characteristics, including central controller, double color infrared temperature measuring instrument, power plant monitoring and control computer and reconstruction of temperature field industrial personal computer;The quantity of the double color infrared temperature measuring instrument is at least four, on boiler furnace furnace wall;The signal output end of the double color infrared temperature measuring instrument is connected by conducting wire with central controller, and the signal output end of the central controller is connected respectively with power plant monitoring and control computer and reconstruction of temperature field industrial personal computer;Present invention installation is applied to station boiler.

Description

Using gas infra-red radiation superimposed characteristics establish station boiler temperature field system and Method
Technical field
The system and method that the present invention establishes station boiler temperature field using gas infra-red radiation superimposed characteristics belongs to utilization Gas infra-red radiation superimposed characteristics establish station boiler temperature field technical field.
Background technology
The fire box temperature field energy of boiler directly reflects the ignition temperature situation of each position of boiler internal, when being boiler operatiopn On the one hand very important parameter can determine flame kernel deflection, impact of flame on the wall whether occur in stove according to fire box temperature field The problems such as, it can regulate and control to prevent boiler thermal efficiency from reducing in time, generate noise or generation phenomena such as quick-fried stove, on the other hand, stove Bore temperature field can also provide reliable data foundation for the pollutant control of boiler, and cooperation desulphurization denitration technology can effectively drop Low stain object discharges, while can also save the use of chemical agent, greatly cost-effective.
It is difficult to carry out fire box temperature field long-term real time on-line monitoring by the way of traditional thermocouple temperature measurement at present, And contactless infrared temperature measurement apparatus has fast response time, running temperature, measurement data is accurate, the spies such as stable and reliable operation Point, therefore multigroup infrared temperature measurement apparatus may be used and measure in stove reduction temperature field after multiple measurement points;But everybody is applying A problem is generally ignored during this method, the temperature value obtained due to infrared radiation thermometer and the radiation energy received are into positive It closes, and gas has penetrability, in the light path of temperature measurer, the radiation on a line can be all received, therefore infrared survey Warm instrument reading can not simply regard the temperature of certain point in space as, it be straight line each point temperature in light path synthesis it is anti- It reflects.Temperature field accuracy of the reading of infrared radiation thermometer directly as the temperature of a point to build is that can not ensure by dimension 's.
Invention content
The technical issues of present invention overcomes the shortcomings of the prior art, solution be:A kind of utilization infrared spoke of gas is provided Penetrate the system and method that superimposed characteristics establish station boiler temperature field;In order to solve the above-mentioned technical problem, the skill that the present invention uses Art scheme is:The system for establishing station boiler temperature field using gas infra-red radiation superimposed characteristics, including central controller, double-colored Infrared radiation thermometer, power plant monitoring and control computer and reconstruction of temperature field industrial personal computer;
The quantity of the double color infrared temperature measuring instrument is at least four, on boiler furnace furnace wall;
The signal output end of the double color infrared temperature measuring instrument is connected by conducting wire with central controller, the letter of the central controller Number output terminal is connected respectively with power plant monitoring and control computer and reconstruction of temperature field industrial personal computer.
The double color infrared temperature measuring instrument includes casing, casing flange disk, gas source interface, cable hole, shell, ring flange;
Described sleeve pipe is stretched into the trepanning of boiler furnace furnace wall and is welded and fixed, the elongated end end face of described sleeve pipe and boiler furnace Furnace wall inner wall flushes, and the other end of casing is provided with casing flange disk, and the double color infrared temperature measuring instrument is arranged on the inside of shell, The elongated end of the shell is provided with ring flange, and fixation is bolted with casing flange disk in the ring flange;
The gas source interface is connected with thermometric air source, the power cord of the double color infrared temperature measuring instrument and signal wire by cable hole with External power supply and central controller are connected.
The quantity of the double color infrared temperature measuring instrument is 20, wherein 10 double color infrared temperature measuring instruments are arranged on boiler furnace arch, furnace nose On a lower section 1-2 meters of section perpendicular to axis of boiler, in addition 10 double color infrared temperature measuring instruments are arranged under boiler furnace arch, furnace nose On a square 6-8 meters section perpendicular to axis of boiler;
Each double color infrared temperature measuring instrument position set on one section is the Dual band IR being arranged on boiler short side furnace wall Distance a of the temperature measurer apart from long side is the 1/3 of length of short sides, the quantity of double color infrared temperature measuring instrument set on boiler short side furnace wall It is two;
It is arranged on the 1/9-1/ that distance b of the double color infrared temperature measuring instrument on boiler long side furnace wall apart from side short side is length of long sides 8,1/5-1/4s of the distance d for length of long sides apart from opposite side short side, the double color infrared ray being arranged on boiler long side furnace wall The mutual distance c of instrument is the 1/3 of length of long sides, and the quantity of double color infrared temperature measuring instrument set on boiler long side furnace wall is three The interlaced arrangement of double color infrared temperature measuring instrument that is a, being set on two opposite boiler long side furnace walls.
The power supply of the central controller and double color infrared temperature measuring instrument is 24V DC power supplies;
The cable that the double color infrared temperature measuring instrument is connect with central controller, central controller are connect with reconstruction of temperature field industrial personal computer Cable be RS485 industrial-controlled general lines, the central controller passes through ethernet communication bus and power plant monitoring and control computer It is connected.
The controller model S7-200 that the central controller uses.
The method for establishing station boiler temperature field using gas infra-red radiation superimposed characteristics, includes the following steps:
The first step:Using Theory of Combustion and infrared emanation principle, infrared radiation thermometer temperature reading value and measured temperature side are established Data relationship model y=f (α, β, θ, x, t between upward different location temperature value), wherein:Y represents temperature measurer reading, and α is represented Boiler type, β represent load, and θ represents nominal parameter, and x represents position coordinates in light path, and t represents corresponding position temperature;
The temperature data obtained using infrared radiation thermometer reading value and thermocouple in direction different location measurement, constantly adjusts institute The relevant parameter of relational model is stated, finally obtain the infrared radiation thermometer reading for meeting actual state and surveys direction different location is real Relational model between the temperature value of border;
Second step:It is measured using same plane multiple directions of the infrared radiation thermometer in station boiler with position, utilizes Different location temperature value on direction is surveyed in the model that one step is established, acquisition;It is calculated and is surveyed using data correlation related algorithm The temperature data largely put in plane determines the distribution situation of planar temperature, is utilized multiple infrared radiation thermometer temperature The planar temperature field that reading value is established, and then obtain the model of the temperature value of any position and calculation in surveyed plane Method;
Third walks:In another plane in station boiler, the work of second step is repeated, determines the two-dimension temperature distribution of the plane , and entire station boiler 3 D stereo Temperature Distribution field is established, and then obtain in surveyed furnace of power-plant boilers using gradient method The model and algorithm of any point temperature value;
4th step:Inside the station boiler in the plane of two different heights, it is mounted respectively to few four infrared radiation thermometers, acquisition After surveying numerical value to infrared radiation thermometer, using above-mentioned algorithm model, the temperature data of each point in furnace of power-plant boilers is obtained;
5th step:The temperature value that will be calculated considers burner hearth actual conditions, the temperature value being calculated is multiplied by correlation Correction factor finally obtains the actual temperature of furnace of power-plant boilers each point.
The present invention has following advantageous effect relative to the prior art:
1st, it is simply inaccurate using infrared radiation thermometer temperature as the temperature of certain point in burner hearth, the present invention is based on burnings to manage The relationship between infrared radiation thermometer reading and surveyed direction different location actual temperature numerical value is established by principle of infrared radiation Model, and by its authenticity of a large amount of field survey data verifications, be improved compared to former technical data accuracy;
2nd, the temperature measuring point interlaced arrangement that the present invention is set on boiler long side furnace wall, it is possible to reduce boiler trepanning is ensureing to establish Influence of the entire temp measuring system to boiler normal operation is reduced while the accuracy of temperature field;
3rd, the present invention carries out rational temperature field subregion, can facilitate engineering by setting multiple measurement points on boiler wall On controlled;
4th, the present invention is by setting central controller and reconstruction of temperature field industrial personal computer that can be carried during data acquisition and procession High efficiency can shorten the temperature field update cycle using dual CPU, improve the real-time of monitoring.
Description of the drawings
The present invention will be further described below in conjunction with the accompanying drawings:
Fig. 1 is the structural diagram of the present invention;
Fig. 2 is the structure diagram of double color infrared temperature measuring instrument of the present invention;
Fig. 3 sets state diagram for double color infrared temperature measuring instrument of the present invention in boiler furnace;
Fig. 4 is the flow chart that the present invention establishes station boiler temperature field method;
In figure:1 it is central controller, 2 be double color infrared temperature measuring instrument, 3 be boiler furnace furnace wall, 4 is power plant monitoring and control computer, 5 It is casing for reconstruction of temperature field industrial personal computer, 6,7 be casing flange disk, 8 be gas source interface, 9 be cable hole, 10 be shell, 11 is Ring flange.
Specific embodiment
As shown in Figures 1 to 4, the present invention is using what gas infra-red radiation superimposed characteristics established station boiler temperature field System, including central controller 1, double color infrared temperature measuring instrument 2, power plant monitoring and control computer 4 and reconstruction of temperature field industrial personal computer 5;
The quantity of the double color infrared temperature measuring instrument 2 is at least four, on boiler furnace furnace wall 3;
The signal output end of the double color infrared temperature measuring instrument 2 is connected by conducting wire with central controller 1, the central controller 1 Signal output end be connected respectively with power plant monitoring and control computer 4 and reconstruction of temperature field industrial personal computer 5.
The double color infrared temperature measuring instrument 2 includes casing 6, casing flange disk 7, gas source interface 8, cable hole 9, shell 10, method Blue disk 11;
Described sleeve pipe 6 is stretched into the trepanning of boiler furnace furnace wall 3 and is welded and fixed, the elongated end end face of described sleeve pipe 6 and boiler 3 inner wall of burner hearth furnace wall flushes, and the other end of casing 6 is provided with casing flange disk 7, and the double color infrared temperature measuring instrument 2 is arranged on outer The inside of shell 10, the elongated end of the shell 10 are provided with ring flange 11, and the ring flange 11 passes through bolt with casing flange disk 7 Connection is fixed;
The gas source interface 8 is connected with thermometric air source, and power cord and the signal wire of the double color infrared temperature measuring instrument 2 pass through cable hole 9 are connected with external power supply and central controller 1.
The quantity of the double color infrared temperature measuring instrument 2 is 20, wherein 10 double color infrared temperature measuring instruments 2 are arranged on boiler folding flame Below angle on a 1-2 meters of sections perpendicular to axis of boiler, in addition 10 double color infrared temperature measuring instruments 2 are arranged on boiler furnace arch, furnace nose On a lower section 6-8 meters of section perpendicular to axis of boiler;
2 position of each double color infrared temperature measuring instrument set on one section is the dual-color red being arranged on boiler short side furnace wall Distance a of the outer temperature measurer 2 apart from long side is the 1/3 of length of short sides, the double color infrared temperature measuring instrument 2 set on boiler short side furnace wall Quantity is two;
It is arranged on the 1/9- that distance b of the double color infrared temperature measuring instrument 2 on boiler long side furnace wall apart from side short side is length of long sides 1/8,1/5-1/4s of the distance d for length of long sides apart from opposite side short side, the dual-color red exterior measuring being arranged on boiler long side furnace wall The mutual distance c of warm instrument 2 is the 1/3 of length of long sides, the quantity of double color infrared temperature measuring instrument 2 set on boiler long side furnace wall It is three, the 2 interlaced arrangement of double color infrared temperature measuring instrument set on two opposite boiler long side furnace walls.
The power supply of the central controller 1 and double color infrared temperature measuring instrument 2 is 24V DC power supplies;
The cable that the double color infrared temperature measuring instrument 2 is connect with central controller 1, central controller 1 and reconstruction of temperature field industrial personal computer 5 The cable of connection is RS485 industrial-controlled general lines, and the central controller 1 passes through ethernet communication bus and power plant monitoring and control meter Calculation machine 4 is connected.
The controller model S7-200 that the central controller 1 uses.
The method for establishing station boiler temperature field using gas infra-red radiation superimposed characteristics, includes the following steps:
The first step:Using Theory of Combustion and infrared emanation principle, infrared radiation thermometer temperature reading value and measured temperature side are established Data relationship model y=f (α, β, θ, x, t between upward different location temperature value), wherein:Y represents temperature measurer reading, and α is represented Boiler type, β represent load, and θ represents nominal parameter, and x represents position coordinates in light path, and t represents corresponding position temperature;
The temperature data obtained using infrared radiation thermometer reading value and thermocouple in direction different location measurement, constantly adjusts institute The relevant parameter of relational model is stated, finally obtain the infrared radiation thermometer reading for meeting actual state and surveys direction different location is real Relational model between the temperature value of border;
Second step:It is measured using same plane multiple directions of the infrared radiation thermometer in station boiler with position, utilizes Different location temperature value on direction is surveyed in the model that one step is established, acquisition;It is calculated and is surveyed using data correlation related algorithm The temperature data largely put in plane determines the distribution situation of planar temperature, is utilized multiple infrared radiation thermometer temperature The planar temperature field that reading value is established, and then obtain the model of the temperature value of any position and calculation in surveyed plane Method;
Third walks:In another plane in station boiler, the work of second step is repeated, determines the two-dimension temperature distribution of the plane , and entire station boiler 3 D stereo Temperature Distribution field is established, and then obtain in surveyed furnace of power-plant boilers using gradient method The model and algorithm of any point temperature value;
4th step:Inside the station boiler in the plane of two different heights, it is mounted respectively to few four infrared radiation thermometers, acquisition After surveying numerical value to infrared radiation thermometer, using above-mentioned algorithm model, the temperature data of each point in furnace of power-plant boilers is obtained;
5th step:The temperature value that will be calculated considers burner hearth actual conditions, the temperature value being calculated is multiplied by correlation Correction factor finally obtains the actual temperature of furnace of power-plant boilers each point.
The present invention is using the temperature measurer of Dual band IR principle because its measurement result depends on the radiant power of two wave bands The ratio between, the thermometric error because of caused by energy attenuation can be effectively reduced, the severe ring such as is particularly suitable in electric boiler stove It is used in border;Before thermometric is carried out, need all double color infrared temperature measuring instruments 2 being fixed on boiler wall to be detected, according to reality Border needs, and the double color infrared temperature measuring instrument 2 being arranged on boiler wall need to meet certain arrangement requirement, just can guarantee few as possible Under the premise of trepanning, accomplish maximum reduction to temperature field;After setting completed, all temperature measurers can be opened and enters thermometric shape State, temperature measurer passes each point measured temperature back central controller 1 in real time in whole work process, and the central controller 1 of setting is led The work such as the data that take charge of acquisition, transcoding, packing, transmission, reconstruction of temperature field industrial personal computer 5 are substantially carried out data operation, temperature And regional temperature show etc. that core works, the two parts are run simultaneously, temperature field can effectively be shortened more by sharing out the work and help one another The new period.
In the transmission process of data output, temperature measurement data is packaged portion and is transmitted to power plant's prison by central controller 1 simultaneously Computer is controlled, staff can understand the working condition of whole system in real time by the display screen of setting.
The purpose for establishing temperature field is to provide foundation to engineering practice, and more effect is to visualize isollaothermic chart In-furnace temperature situation is expressed on ground, and the temperature for measuring corresponding position in stove is final purpose, can be showed according to thermoisopleth Thermo parameters method carries out boiler internal multidomain treat-ment, and the mean temperature in interior each region that must come out of the stove, and facilitates and is called in engineering Data, the temperature field that whole process can be configured in reconstruction of temperature field industrial personal computer 5 restores to be realized in software.
In the method for establishing station boiler temperature field, the temperature of each point in furnace of power-plant boilers is obtained according to algorithm model After degrees of data, need to consider the burner hearth actual conditions such as coal-fired factors such as type, cigarette ash coefficient, temperature data is multiplied by related amendment Coefficient can just obtain actual temperature;The present invention can also according to requirement of engineering to electric boiler burner hearth into trip temperature subregion, calculate The mean temperature of each subregion is simultaneously shown in host computer.
Finally it should be noted that:The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations;To the greatest extent Pipe is described in detail the present invention with reference to foregoing embodiments, it will be understood by those of ordinary skill in the art that:Its according to Can so modify to the technical solution recorded in foregoing embodiments either to which part or all technical features into Row equivalent replacement;And these modifications or replacement, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution The range of scheme.

Claims (6)

1. the system for establishing station boiler temperature field using gas infra-red radiation superimposed characteristics, it is characterised in that:It is controlled including center Device processed(1), double color infrared temperature measuring instrument(2), power plant monitoring and control computer(4)With reconstruction of temperature field industrial personal computer(5);
The double color infrared temperature measuring instrument(2)Quantity be at least four, mounted on boiler furnace furnace wall(3)On;
The double color infrared temperature measuring instrument(2)Signal output end pass through conducting wire and central controller(1)It is connected, the center control Device(1)Signal output end respectively with power plant monitoring and control computer(4)With reconstruction of temperature field industrial personal computer(5)It is connected.
2. the system according to claim 1 for establishing station boiler temperature field using gas infra-red radiation superimposed characteristics, It is characterized in that:The double color infrared temperature measuring instrument(2)Including casing(6), casing flange disk(7), gas source interface(8), cable hole (9), shell(10), ring flange(11);
Described sleeve pipe(6)Stretch into boiler furnace furnace wall(3)Trepanning in and be welded and fixed, described sleeve pipe(6)Elongated end end face With boiler furnace furnace wall(3)Inner wall flushes, casing(6)The other end be provided with casing flange disk(7), the double color infrared ray Instrument(2)It is arranged on shell(10)Inside, the shell(10)Elongated end be provided with ring flange(11), the ring flange(11) With casing flange disk(7)Fixation is bolted;
The gas source interface(8)It is connected with thermometric air source, the double color infrared temperature measuring instrument(2)Power cord with signal wire by walking String holes(9)With external power supply and central controller(1)It is connected.
3. the system according to claim 2 for establishing station boiler temperature field using gas infra-red radiation superimposed characteristics, It is characterized in that:The double color infrared temperature measuring instrument(2)Quantity for 20, wherein 10 double color infrared temperature measuring instruments(2)It is arranged on pot Below stove furnace arch, furnace nose on a 1-2 meters of sections perpendicular to axis of boiler, other 10 double color infrared temperature measuring instruments(2)It is arranged on pot Below stove furnace arch, furnace nose on a 6-8 meters of sections perpendicular to axis of boiler;
Each double color infrared temperature measuring instrument set on one section(2)Position be arranged on it is double-colored on boiler short side furnace wall Infrared radiation thermometer(2)Distance a apart from long side is the 1/3 of length of short sides, the double color infrared ray set on boiler short side furnace wall Instrument(2)Quantity be two;
The double color infrared temperature measuring instrument being arranged on boiler long side furnace wall(2)Distance b apart from side short side is the 1/ of length of long sides , 1/5-1/4s of the distance d for length of long sides apart from opposite side short side, the Dual band IR being arranged on boiler long side furnace wall Temperature measurer(2)Mutual distance c is the 1/3 of length of long sides, the double color infrared temperature measuring instrument set on boiler long side furnace wall(2) Quantity for three, the double color infrared temperature measuring instrument that is set on two opposite boiler long side furnace walls(2)Interlaced arrangement.
4. the system according to claim 1 for establishing station boiler temperature field using gas infra-red radiation superimposed characteristics, It is characterized in that:The central controller(1)With double color infrared temperature measuring instrument(2)Power supply be 24V DC power supplies;
The double color infrared temperature measuring instrument(2)With central controller(1)The cable of connection, central controller(1)With reconstruction of temperature field Industrial personal computer(5)The cable of connection is RS485 industrial-controlled general lines, the central controller(1)Pass through ethernet communication bus With power plant monitoring and control computer(4)It is connected.
5. the system according to claim 1 for establishing station boiler temperature field using gas infra-red radiation superimposed characteristics, It is characterized in that:The central controller(1)The controller model S7-200 used.
6. the method for establishing station boiler temperature field using gas infra-red radiation superimposed characteristics, it is characterised in that:Including following step Suddenly:
The first step:Using Theory of Combustion and infrared emanation principle, infrared radiation thermometer temperature reading value and measured temperature side are established Data relationship model y=f (α, β, θ, x, t between upward different location temperature value), wherein:Y represents temperature measurer reading, and α is represented Boiler type, β represent load, and θ represents nominal parameter, and x represents position coordinates in light path, and t represents corresponding position temperature;
The temperature data obtained using infrared radiation thermometer reading value and thermocouple in direction different location measurement, constantly adjusts institute The relevant parameter of relational model is stated, finally obtain the infrared radiation thermometer reading for meeting actual state and surveys direction different location is real Relational model between the temperature value of border;
Second step:It is measured using same plane multiple directions of the infrared radiation thermometer in station boiler with position, utilizes Different location temperature value on direction is surveyed in the model that one step is established, acquisition;It is calculated and is surveyed using data correlation related algorithm The temperature data largely put in plane determines the distribution situation of planar temperature, is utilized multiple infrared radiation thermometer temperature The planar temperature field that reading value is established, and then obtain the model of the temperature value of any position and calculation in surveyed plane Method;
Third walks:In another plane in station boiler, the work of second step is repeated, determines the two-dimension temperature distribution of the plane , and entire station boiler 3 D stereo Temperature Distribution field is established, and then obtain in surveyed furnace of power-plant boilers using gradient method The model and algorithm of any point temperature value;
4th step:Inside the station boiler in the plane of two different heights, it is mounted respectively to few four infrared radiation thermometers, acquisition After surveying numerical value to infrared radiation thermometer, using above-mentioned algorithm model, the temperature data of each point in furnace of power-plant boilers is obtained;
5th step:The temperature value that will be calculated considers burner hearth actual conditions, the temperature value being calculated is multiplied by correlation Correction factor finally obtains the actual temperature of furnace of power-plant boilers each point.
CN201810102018.0A 2018-02-01 2018-02-01 System and method for establishing power station boiler temperature field by using gas infrared radiation superposition characteristics Active CN108254080B (en)

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陈金兴: "基于图像处理的锅炉炉膛三维温度场检测技术研究", 《中国优秀硕士学位论文全文数据库信息科技辑》 *

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111896118A (en) * 2020-08-07 2020-11-06 中国石油化工股份有限公司 Temperature measuring method and device and thermal imaging system
CN112146774A (en) * 2020-09-24 2020-12-29 广东电科院能源技术有限责任公司 Method and system for measuring temperature of hearth in waste incineration power plant

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