CN106124065A - Thermal tower type heat extractor plugging based on infrared measurement of temperature detection reply control system - Google Patents
Thermal tower type heat extractor plugging based on infrared measurement of temperature detection reply control system Download PDFInfo
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- CN106124065A CN106124065A CN201610650889.7A CN201610650889A CN106124065A CN 106124065 A CN106124065 A CN 106124065A CN 201610650889 A CN201610650889 A CN 201610650889A CN 106124065 A CN106124065 A CN 106124065A
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- 238000005259 measurement Methods 0.000 title claims abstract description 66
- 238000001514 detection method Methods 0.000 title claims abstract description 30
- 238000004891 communication Methods 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims description 14
- 210000003141 Lower Extremity Anatomy 0.000 claims description 9
- 238000002844 melting Methods 0.000 claims description 6
- 238000010248 power generation Methods 0.000 claims description 5
- 230000000007 visual effect Effects 0.000 claims description 4
- 239000006096 absorbing agent Substances 0.000 claims description 3
- 238000005452 bending Methods 0.000 claims description 3
- 238000003384 imaging method Methods 0.000 claims description 3
- 150000003839 salts Chemical class 0.000 description 9
- 239000011780 sodium chloride Substances 0.000 description 9
- 238000010521 absorption reaction Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 230000011514 reflex Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003287 optical Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001931 thermography Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/10—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors
- G01J5/12—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors using thermoelectric elements, e.g. thermocouples
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/10—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors
- G01J5/12—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors using thermoelectric elements, e.g. thermocouples
- G01J2005/126—Thermoelectric black plate and thermocouple
Abstract
The invention provides a kind of thermal tower type heat extractor plugging detection reply control system, including: infrared radiation thermometer, infrared measurement of temperature and plugging detecting module；Wherein, infrared radiation thermometer is arranged on the ground location of the Jing Chang of the surrounding of described heat extractor, tower-type solar thermal power generating system, itself and infrared measurement of temperature and the communication connection of plugging detecting module；Infrared measurement of temperature and plugging detecting module then communicate to connect with the mirror station control system of tower-type solar thermal power generating system；When thermal tower type Jing Chang works, the direct solar radiation of the sun is all concentrated and is reflected on heat extractor by the heliostat of tower-type solar thermal power generating system, infrared radiation thermometer recorded data is transferred to infrared measurement of temperature and plugging detecting module, whether infrared measurement of temperature and plugging detecting module are occurred by analytical calculation detection plugging phenomenon, if there is plugging phenomenon, feed back to mirror station control system, by plugging is melted in the control of heliostat.
Description
Technical field
The present invention relates to fused salt tower photo-thermal power generation field, absorb heat particularly to a kind of thermal tower type based on infrared measurement of temperature
Device plugging detection reply control system.
Background technology
Solar energy thermal-power-generating is the important technology approach large-scale developing and utilizing solar energy, and it is by turning solar energy
Change heat energy into, generated electricity by heat to power output.
Solar energy tower type generating is the one of solar energy thermal-power-generating, is that the heliostat by following the tracks of solar motion is by sun spoke
Penetrate and reflex to be placed on the heat extractor on heat absorption tower, it is thus achieved that high-temperature heat-transfer medium, high temperature heat transfer fluid is directly or indirectly through warm
The electricity generation system of power circulation.The design philosophy of tower type solar energy thermal power generation comes from the Soviet Union of the 1950's, is developed in 80 years
In generation, in Spain, Italy, the U.S. and method state set up tower type solar light thermo-power station the most in succession.
Tower-type solar thermal power generating system can realize the focusing ratio of 200～1000, the mean heat flux of heat extractor up to
300～1000kW/m2, operating temperature can be more than 1000 DEG C, and power plant scale is up to 30～400MWe.According to heat-absorbing medium not
With, tower heat extractor can be divided into fused salt heat extractor, device of working medium heat extractor, air heat-absorbing device and solid particle heat extractor etc..
The tower technology of fused salt is to utilize fuse salt as the tower type solar energy thermal power generation technology of heat transfer medium.Heliostat will too
When sunlight reflexes on heat extractor, by the fused salt of flowing in heat extractor pipeline, heat is taken away.Owing to Salar light-gathering can flow
Density is the highest and has inhomogeneities and unstability, if occurring, the intensity of sunlight weakens suddenly or natural environment sudden change
Etc. situation, temperature of molten salt at exit vessel or inlet container and pipe interface can be made to be reduced to freezing point, cause fused salt in heat absorption
Solidify during device tube runs, block tube panel, form plugging.There are major safety risks to heat extractor in plugging, if occurring plugging existing
As, in pipeline, fused salt no longer flows, it is impossible to the solar heat that heliostat reflects being taken away, local temperature acutely raises, and causes
Heat sink material thermal stress brokenization, affects heat extractor service life.
Prior art is generally measured by the way of installing temperature-measuring part on heat extractor surface heat absorption gas meter surface temperature,
And then plugging phenomenon is detected.But it is less to there is measurement point in this mode, and heat sink temperature is detected incomplete defect,
It is unfavorable for detecting in time and finding the generation of plugging phenomenon.
Summary of the invention
It is an object of the invention to overcome prior art to heat extractor surface temperature measurement difficulty and to measure the less problem of point,
Thus a kind of thermal tower type heat extractor plugging based on infrared measurement of temperature detection reply control system is provided.
To achieve these goals, the invention provides a kind of thermal tower type heat extractor plugging detection reply control system,
Including: infrared radiation thermometer 3, infrared measurement of temperature and plugging detecting module 4；Wherein,
Described infrared radiation thermometer 3 is arranged on the ground of the Jing Chang of the surrounding of described heat extractor 1, tower-type solar thermal power generating system
Position, face, it communicates to connect with described infrared measurement of temperature and plugging detecting module 4；Described infrared measurement of temperature and plugging detecting module 4 are then
Communicate to connect with the mirror station control system 6 of tower-type solar thermal power generating system；When thermal tower type Jing Chang works, tower type solar
The direct solar radiation of the sun is all concentrated and is reflected on described heat extractor 1 by the heliostat 5 of heat generating system, described infrared radiation thermometer 3
Recorded data is transferred to infrared measurement of temperature and plugging detecting module 4, described infrared measurement of temperature and plugging detecting module 4 by analyzing
Calculating whether detection plugging phenomenon occurs, if there is plugging phenomenon, feeding back to mirror station control system 6, by described heliostat
Plugging is melted in the control of 5.
In technique scheme, described infrared measurement of temperature and plugging detecting module 4 also utilize and receive from described infrared radiation thermometer 3
The data arrived, coordinate with outside mirror station control system 6, make described heat extractor 1 surface temperature uniform.
In technique scheme, also include that temperature measuring device 2, described temperature measuring device 2 are arranged on tower type solar energy thermal power generation system
The back side of the heat extractor 1 of system, the REAL TIME INFRARED THERMAL IMAGE temperature of described infrared radiation thermometer 3 shooting carries out real time calibration by temperature measuring device 2.
In technique scheme, described temperature measuring device 2 is thermometric thermal resistance or temperature thermocouple.
In technique scheme, described infrared radiation thermometer 3 includes: infrared telephoto lens, infrared measurement of temperature movement, communication group
Part；Described heat extractor 1 can be positioned in major part imaging viewing field by infrared telephoto lens therein；Described communication part is for real
Show the communication connection between described infrared radiation thermometer 3 and described infrared measurement of temperature and plugging detecting module 4.
In technique scheme, the quantity of described infrared radiation thermometer 3 is relevant with the type of heat extractor 1；When heat extractor 1 is chamber
During formula heat extractor, have only to dispose an infrared radiation thermometer 3 that heat extractor 1 is monitored in real time at Jing Changzhong；When heat extractor 1 is
During external circumferentially heat extractor, need to place multiple stage infrared radiation thermometer 3 in the surrounding of heat extractor 1 and be monitored, it is achieved to heat absorption
The 360 deg of device 1 is measured without dead angle.
In technique scheme, described infrared radiation thermometer 3 should be avoided being blocked infrared measurement of temperature by heliostat around when mounted
The equipment angle of visual field, and avoid hindering the road cleaning heliostat.
In technique scheme, described infrared radiation thermometer 3 measurement result with described temperature measuring device 2 at set intervals is done
Real time calibration, when calibration, the temperature data recorded compares with the measurement result of described temperature measuring device 2, if both
Difference in a threshold range, then it is assumed that precision coincidence measurement requirement, if both differences are beyond this threshold range, then lead to
Crossing the temperature curve of joining adjusting in described infrared radiation thermometer 3 makes this difference be contracted in threshold range.
In technique scheme, described infrared measurement of temperature and plugging detecting module 4 utilize and receive from described infrared radiation thermometer 3
Temperature data detection heat extractor 1 whether there is plugging phenomenon, including:
First temperature data is carried out pretreatment；Then utilize pretreated temperature data to carry out plugging detection to calculate,
Due to plugging pipeline temperature can will be high than the line temperature of the left and right sides, described infrared measurement of temperature and plugging detecting module 4 lead to
Cross this feature to be identified, it may be judged whether plugging；If there is plugging, plugging is sent out by described infrared measurement of temperature and plugging detecting module 4
Raw notice, plugging place pipeline location and plugging location block number are sent to mirror station control system 6, described mirror station control system
The 6 heliostat hot spots that appointment is used for melting plugging are placed in plugging position, carry out melting plugging operation；When infrared radiation thermometer 3
Detecting after plugging melted, notice mirror station control system 6 is cancelled and is melted plugging operation.
In technique scheme, described pretreatment specifically includes: first ensure heat extractor 1 in the image of temperature data just
Stand up and put, identify the location of pixels of heat extractor lower limb bending camber line the most in the picture, according to heat extractor 1 lower limb camber line
Shape carries out flexible process to heat extractor 1 image so that lower limb is horizontal linear in the picture.
In technique scheme, described infrared measurement of temperature and plugging detecting module 4 utilize and receive from described infrared radiation thermometer 3
Temperature data, coordinate with outside mirror station control system 6, make described heat extractor 1 surface temperature uniform；Specifically include: first
From the temperature data that described infrared radiation thermometer 3 is transmitted, determine highest temperature area and the lowest region on described heat extractor 1 surface
Territory, then sends control instruction to mirror station control system 6 so that target location is that the heliostat hot spot of highest temperature area moves
To temperature lowermost extent, repeat aforesaid operations repeatedly, until lowermost extent and highest zone temperature close.
It is an advantage of the current invention that:
1, the present invention uses infrared measurement of temperature equipment to detect heat extractor molten salt pipeline plugging situation, and carries out for plugging operating mode
Control operation accordingly, melt plugging.Can effectively protect heat extractor, improve heat extractor service life.
2, under the present invention solves duty, heat extractor 1 surface temperature is higher, the problem of bad placement temperature sensor.
And measuring and a little directly determined by thermal imaging detector pixel count, cost is relatively low.Real-time is good.This temp testing controlling system can be very
The good distribution following the tracks of heat extractor surface energy flux density, can be prevented effectively from hot-spot or local overcooling by control system,
Well protect heat extractor heat-conducting medium pipeline behind.
Accompanying drawing explanation
Fig. 1 is the structural representation of the thermal tower type heat extractor plugging detection reply control system of the present invention；
Fig. 2 is the layout schematic diagram of the infrared radiation thermometer in the present invention.
Drawing illustrates:
1 heat extractor 2 temperature measuring device
3 infrared radiation thermometer 4 infrared measurement of temperature and plugging detecting module
5 heliostat 6 mirror station control systems
Detailed description of the invention
In conjunction with accompanying drawing, the invention will be further described.
With reference to Fig. 1, the thermal tower type heat extractor plugging detection reply control system of the present invention includes: temperature measuring device 2, infrared
Temperature measurer 3, infrared measurement of temperature and plugging detecting module 4；Wherein, described temperature measuring device 2 is arranged on tower-type solar thermal power generating system
The back side of heat extractor 1；Described infrared radiation thermometer 3 is arranged on the Jing Chang of the surrounding of heat extractor 1, tower-type solar thermal power generating system
Ground location, it communicates to connect with infrared measurement of temperature and plugging detecting module 4；Described infrared measurement of temperature and plugging detecting module 4 are then
Communicate to connect with the mirror station control system 6 of tower-type solar thermal power generating system；When thermal tower type Jing Chang works, tower type solar
The direct solar radiation of the sun is all concentrated and is reflected on heat extractor 1 by the heliostat 5 of heat generating system, described infrared radiation thermometer 3 clap
The REAL TIME INFRARED THERMAL IMAGE temperature taken the photograph carries out real time calibration by the temperature measuring device 2 at the heat extractor back side, and described infrared radiation thermometer 3 is recorded
Data are transferred to infrared measurement of temperature and plugging detecting module 4；By infrared measurement of temperature and the analytical calculation of plugging detecting module 4, feedback
To mirror station control system 6, thus heliostat 5 is carried out the operation under specific operation.
All parts during thermal tower type heat extractor plugging to the present invention detects reply control system below does further
Explanation.
Described temperature measuring device 2 can be thermometric thermal resistance, it is also possible to be temperature thermocouple.
Described infrared radiation thermometer 3 includes: infrared telephoto lens, infrared measurement of temperature movement, communication part；Infrared focal length therein
The parameter of camera lens is mated according to practical situation, and infrared telephoto lens should be made just heat extractor 1 to be positioned over major part
In imaging viewing field；Described communication part is for realizing the communication link between infrared radiation thermometer 3 and infrared measurement of temperature and plugging detecting module 4
Connect.
The quantity of described infrared radiation thermometer 3 is relevant with the type of heat extractor 1.Heat absorption in tower-type solar thermal power generating system
Device is broadly divided into cavity type heat absorber and external circumferentially two types, for cavity type heat absorber, has only to dispose one at Jing Changzhong
Heat extractor is monitored by platform infrared radiation thermometer in real time；For external circumferentially heat extractor, then need to place multiple stage infrared measurement of temperature
Instrument 3 is monitored, and the particular number of infrared radiation thermometer 3 depends on the concrete size of heat extractor, should ensure that multiple stage infrared radiation thermometer 3
It is uniformly distributed in the surrounding of heat extractor 1, heat extractor 1 is realized 360 deg and measures without dead angle.Circumferentially absorb heat for external
Device, described multiple stage infrared radiation thermometer 3 can be four, eight or 16, in the example shown in figure 2, described infrared measurement of temperature
Instrument 3 has four, is uniformly distributed in the surrounding of heat extractor 1.
The installation site of described infrared radiation thermometer 3 also needs to consider that front is blocked and road conditions.Avoid by the settled date around
Mirror blocks the infrared measurement of temperature equipment angle of visual field, and avoids hindering the road cleaning heliostat.
Described infrared radiation thermometer 3 recorded data includes that two types, one are infrared picture data, described infrared figure
Describe the surface temperature of the object of observation (such as heat extractor 1) qualitatively as data, local color of image as high in temperature is deep,
The local color of image ratio that temperature is low is shallower；Described infrared picture data can describe with a matrix type and transmit；Another kind of
Being temperature data, described temperature data describes the surface temperature of the object of observation (such as heat extractor 1) quantitatively, as with degree Celsius come
The temperature of each point of object of observation surface is described；Described temperature data can describe with a matrix type and transmit.Infrared measurement of temperature
The data of the both types that instrument 3 is recorded are required for being transferred to infrared measurement of temperature and plugging detecting module 4.Described infrared image number
According to being supplied to operator's viewing as graphic interface, described temperature data then can be used for plugging detection.
Described infrared radiation thermometer 3 needs to do real time calibration with the measurement result of described temperature measuring device 2 at set intervals,
During calibration, the temperature data recorded is needed to compare with the measurement result of temperature measuring device 2, if both differences are at a threshold
In the range of value, then it is assumed that precision coincidence measurement requirement, if both differences are beyond this threshold range, then by adjusting infrared survey
Temperature curve of joining in the demarcating module of temperature instrument 3 makes this difference be contracted in threshold range.Described threshold value needs root in practice
Determine its concrete value according to the heatproof extreme value of heat extractor 1, can be 20 DEG C, it is also possible to be 10 DEG C, it is also possible to be 5 DEG C.
Described infrared measurement of temperature and plugging detecting module 4 are after the data receiving the transmission of described infrared radiation thermometer 3, it is possible to profit
Plugging phenomenon whether is there is with temperature data therein detection heat extractor 1.When detecting plugging phenomenon, first temperature data is entered
Row pretreatment；Then utilize pretreated temperature data to carry out plugging detection to calculate, due to the temperature of plugging pipeline (bank of tubes)
Meeting will be high than pipeline (bank of tubes) temperature of the left and right sides, and infrared measurement of temperature and plugging detecting module 4 are identified by this feature,
Judge whether plugging；If there is plugging, plugging is notified by infrared measurement of temperature and plugging detecting module 4, pipeline position, plugging place
Putting and plugging location block number is sent to mirror station control system 6, appointment is used for melting the settled date of plugging by mirror station control system 6
Mirror hot spot is placed in plugging position, carries out melting plugging operation；When infrared radiation thermometer 3 detects after plugging melted, notice
Mirror station control system 6 is cancelled and is melted plugging operation.
Wherein, the reason that infrared measurement of temperature and plugging detecting module 4 carry out pretreatment to temperature data is: due to infrared survey
Temperature instrument 3 is positioned over subaerial position, and its visual field primary optical axis and heat extractor surface exist certain elevation angle relation, at infrared measurement of temperature
In the raw temperature data of instrument output, the lower edges of heat extractor 1 presents semilune, is unfavorable for the detection of plugging.Described pre-place
Reason specifically includes: first ensures heat extractor 1 upright placement in the image of raw temperature data, identifies suction the most in the picture
The location of pixels of hot device lower limb bending camber line, stretches to the image of heat extractor 1 according to heat extractor 1 lower limb arc shape
Process so that lower limb is horizontal linear in the picture.
Wherein, plugging place pipeline location can be determined by the calibration of plugging position, and plugging location block number can pass through
Block calibration determines.When block is calibrated, the division of plugging place block is to determine according to selected heliostat size, heliostat
Area is the biggest, and plugging block divides the biggest.Block can be grid arrangement shape, it is also possible to carry out cloth according to the shape of pipeline
Put.
Described infrared measurement of temperature and plugging detecting module 4, after receiving infrared picture data, can forward it to tower light
The control system of thermal field, shows on the operation interface of this control system.
Described infrared measurement of temperature and plugging detecting module 4 can also utilize the data received from infrared radiation thermometer 3, with outside
Mirror station control system 6 coordinate, make heat extractor 1 surface temperature uniform.This process includes: first passed from infrared radiation thermometer 3
In defeated temperature data, determine highest temperature area and the lowermost extent on heat extractor 1 surface, then to mirror station control system 6
Go out control instruction so that target location is that the heliostat hot spot of highest temperature area moves to temperature lowermost extent, repeats above-mentioned
Operate repeatedly, until lowermost extent and highest zone temperature close.
It should be noted last that, it will be understood by those within the art that, technical scheme is carried out
Amendment or equivalent, without departure from the spirit and scope of technical solution of the present invention, it all should contain the right in the present invention
In the middle of claimed range.
Claims (11)
1. thermal tower type heat extractor plugging detection reply control system, it is characterised in that including: infrared radiation thermometer (3), red
Outer thermometric and plugging detecting module (4)；Wherein,
Described infrared radiation thermometer (3) is arranged on the ground of the Jing Chang of the surrounding of described heat extractor (1), tower-type solar thermal power generating system
Position, face, itself and described infrared measurement of temperature and plugging detecting module (4) communication connection；Described infrared measurement of temperature and plugging detecting module
(4) then communicate to connect with the mirror station control system (6) of tower-type solar thermal power generating system；When thermal tower type Jing Chang works, tower
The direct solar radiation of the sun is all concentrated and is reflected on described heat extractor (1) by the heliostat (5) of formula solar heat power generation system, described
Infrared radiation thermometer (3) recorded data is transferred to infrared measurement of temperature and plugging detecting module (4), described infrared measurement of temperature and plugging and visits
Surveying whether module (4) is occurred by analytical calculation detection plugging phenomenon, if there is plugging phenomenon, feeding back to mirror station control system
(6), by plugging is melted in the control of described heliostat (5).
Thermal tower type heat extractor plugging the most according to claim 1 detection reply control system, it is characterised in that described red
Outer thermometric and plugging detecting module (4) also utilize the data received from described infrared radiation thermometer (3), control with outside Jing Chang
System (6) coordinates, and makes described heat extractor (1) surface temperature uniform.
Thermal tower type heat extractor plugging the most according to claim 1 and 2 detection reply control system, it is characterised in that also
Including temperature measuring device (2), described temperature measuring device (2) is arranged on the back side of the heat extractor (1) of tower-type solar thermal power generating system；Institute
State the REAL TIME INFRARED THERMAL IMAGE temperature that infrared radiation thermometer (3) shoots and carry out real time calibration by temperature measuring device (2).
Thermal tower type heat extractor plugging the most according to claim 3 detection reply control system, it is characterised in that described survey
Temperature device (2) is thermometric thermal resistance or temperature thermocouple.
Thermal tower type heat extractor plugging the most according to claim 1 and 2 detection reply control system, it is characterised in that institute
State infrared radiation thermometer (3) to include: infrared telephoto lens, infrared measurement of temperature movement, communication part；Infrared telephoto lens therein can be by
Described heat extractor (1) is positioned in major part imaging viewing field；Described communication part is used for realizing described infrared radiation thermometer (3) and institute
State the communication connection between infrared measurement of temperature and plugging detecting module (4).
Thermal tower type heat extractor plugging the most according to claim 1 and 2 detection reply control system, it is characterised in that institute
The quantity stating infrared radiation thermometer (3) is relevant with the type of heat extractor (1)；When heat extractor (1) is cavity type heat absorber, in mirror field
Have only to dispose an infrared radiation thermometer (3) that heat extractor (1) is monitored in real time；When heat extractor (1) is external circumferentially to inhale
During hot device, need to place multiple stage infrared radiation thermometer (3) in the surrounding of heat extractor (1) and be monitored, it is achieved three to heat extractor (1)
Degrees is measured without dead angle.
Thermal tower type heat extractor plugging the most according to claim 1 and 2 detection reply control system, it is characterised in that institute
State infrared radiation thermometer (3) should avoid when mounted being blocked the infrared measurement of temperature equipment angle of visual field by heliostat around, and avoid hindering clearly
Wash the road of heliostat.
Thermal tower type heat extractor plugging the most according to claim 1 and 2 detection reply control system, it is characterised in that institute
State the infrared radiation thermometer (3) measurement result at set intervals with described temperature measuring device (2) and do real time calibration, when calibration, will
Its temperature data recorded compares with the measurement result of described temperature measuring device (2), if both differences are at a threshold range
In, then it is assumed that precision coincidence measurement requirement, if both differences are beyond this threshold range, then by adjusting described infrared measurement of temperature
Temperature curve of joining in instrument (3) makes this difference be contracted in threshold range.
Thermal tower type heat extractor plugging the most according to claim 1 and 2 detection reply control system, it is characterised in that institute
State infrared measurement of temperature and plugging detecting module (4) utilizes the temperature data detection heat extractor received from described infrared radiation thermometer (3)
(1) whether there is plugging phenomenon, including:
First temperature data is carried out pretreatment；Then utilize pretreated temperature data to carry out plugging detection to calculate, due to
The temperature of plugging pipeline can will be high than the line temperature of the left and right sides, described infrared measurement of temperature and plugging detecting module (4) pass through
This feature is identified, it may be judged whether plugging；If there is plugging, plugging is sent out by described infrared measurement of temperature and plugging detecting module (4)
Raw notice, plugging place pipeline location and plugging location block number are sent to mirror station control system (6), and described Jing Chang controls system
Appointment is used for melting the heliostat hot spot of plugging and is placed in plugging position by system (6), carries out melting plugging operation；Work as infrared measurement of temperature
Instrument (3) detects after plugging melted, and notice mirror station control system 6 is cancelled and melted plugging operation.
Thermal tower type heat extractor plugging the most according to claim 9 detection reply control system, it is characterised in that described
Pretreatment specifically includes: first ensures heat extractor (1) upright placement in the image of temperature data, identifies the most in the picture
The location of pixels of heat extractor lower limb bending camber line, is carried out heat extractor (1) image according to heat extractor (1) lower limb arc shape
Flexible process so that lower limb is horizontal linear in the picture.
11. thermal tower type heat extractor plugging according to claim 2 detection reply control systems, it is characterised in that described
Infrared measurement of temperature and plugging detecting module (4) utilize the temperature data received from described infrared radiation thermometer (3), with outside Jing Chang
Control system (6) coordinates, and makes described heat extractor (1) surface temperature uniform；Specifically include: first from described infrared radiation thermometer (3)
In the temperature data transmitted, determine highest temperature area and the lowermost extent on described heat extractor (1) surface, then control to Jing Chang
System processed (6) sends control instruction so that target location is that the heliostat hot spot of highest temperature area moves to temperature lowest region
Territory, repeats aforesaid operations repeatedly, until lowermost extent and highest zone temperature close.
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| CN109829654A (en) * | 2019-02-14 | 2019-05-31 | 浙江中控太阳能技术有限公司 | A kind of mirror field dispatching method of matching heat dump operation |
| CN110059703B (en) * | 2019-04-04 | 2021-01-12 | 浙江中控太阳能技术有限公司 | Automatic energy flow density adjusting device and method for heat absorber |
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