CN205981462U - Reply control system is surveyed to stifled pipe of tower heat absorber of light and heat based on infrared temperature measurement - Google Patents
Reply control system is surveyed to stifled pipe of tower heat absorber of light and heat based on infrared temperature measurement Download PDFInfo
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- CN205981462U CN205981462U CN201620861357.3U CN201620861357U CN205981462U CN 205981462 U CN205981462 U CN 205981462U CN 201620861357 U CN201620861357 U CN 201620861357U CN 205981462 U CN205981462 U CN 205981462U
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- plugging
- temperature
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- heat extractor
- control system
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Abstract
The utility model provides a reply control system is surveyed to the stifled pipe of the tower heat absorber of light and heat, include: the module is surveyed to infrared radiation thermometer, infrared temperature measurement and stifled pipe, wherein, the infrared radiation thermometer is installed around the heat absorber, the jing chang's of tower -type solar thermal power generation system ground position, it surveys module communication connection with infrared temperature measurement and stifled pipe, infrared temperature measurement and stifled pipe survey the module then with the mirror field control system communication connection of tower -type solar thermal power generation system, when the tower mirror field during operation of light and heat, the heliostat of tower -type solar thermal power generation system radiates solar direct projection all to concentrate and reflects on the heat absorber, and the data transmission that the infrared radiation thermometer took notes gives infrared temperature measurement and the stifled detection module of managing, and whether infrared temperature measurement and stifled pipe detection module are passed through the stifled pipe phenomenon of analytical calculation detection and taken place, then feed back to mirror field control system if the pipe phenomenon is blocked up in the emergence, melt stifled pipe through the control to the heliostat.
Description
Technical field
This utility model is related to fused salt tower photo-thermal power generation field, particularly to a kind of thermal tower type based on infrared measurement of temperature
Heat extractor plugging detects reply control system.
Background technology
Solar energy thermal-power-generating is an 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.
It is one kind of solar energy thermal-power-generating that solar energy tower type generates electricity, and is by following the tracks of the heliostat of solar motion by sun spoke
Penetrate and reflex on the heat extractor being placed on heat absorption tower, obtain 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
Generation, in Spain, Italy, the U.S. and method state all set up tower type solar light thermo-power station in succession.
Tower-type solar thermal power generating system can achieve 200～1000 focusing ratio, the mean heat flux of heat extractor up to
300～1000kW/m2, operating temperature can exceed 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 the tower type solar energy thermal power generation technology by the use of fuse salt as 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.Because Salar light-gathering can flow
Density is very high and has inhomogeneities and unstability, if intensity sunlight weakens suddenly or natural environment mutation
Situations such as, temperature of molten salt at exit vessel or inlet container and pipe interface can be made to be reduced to freezing point, lead to 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 reflecting heliostat is taken away, and local temperature acutely raises, and causes
Heat sink material thermal stress brokenization, affects heat extractor service life.
Generally to be measured by way of temperature-measuring part being installed on heat extractor surface in prior art and to inhale preheat-air surface temperature,
And then plugging phenomenon is detected.But it is less that this mode has measurement point, incomplete defect is detected to heat sink temperature,
It is unfavorable in time detection and the generation finding plugging phenomenon.
Utility model content
The purpose of this utility model is to overcome prior art difficult to heat extractor surface temperature measurement and measurement point is less
Problem, thus provide a kind of thermal tower type heat extractor plugging based on infrared measurement of temperature to detect reply control system.
To achieve these goals, this utility model provides a kind of thermal tower type heat extractor plugging and detects reply control system
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 surrounding of described heat extractor 1, the ground of the Jing Chang of tower-type solar thermal power generating system
Face position, it is communicated 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, and described infrared measurement of temperature and plugging detecting module 4 pass through analysis
Calculating and detect whether plugging phenomenon occurs, if there is plugging phenomenon, feeding back to mirror station control system 6, by described heliostat
5 control ablation plugging.
In technique scheme, described infrared measurement of temperature and plugging detecting module 4 also receive using from described infrared radiation thermometer 3
The data arriving, is coordinated with outside mirror station control system 6, makes described heat extractor 1 surface temperature uniform.
In technique scheme, also include temperature measuring device 2, described temperature measuring device 2 is 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 that described infrared radiation thermometer 3 shoots 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 most of imaging viewing field for infrared telephoto lens therein；Described communication part is used for real
Existing 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, only need to dispose an infrared radiation thermometer 3 to carry out monitor in real time to heat extractor 1 in Jing Changzhong；When heat extractor 1 is
During external circumferentially heat extractor, need the surrounding in heat extractor 1 to place multiple stage infrared radiation thermometer 3 and be monitored, realize to heat absorption
The no dead angle measurement of the 360 deg of device 1.
In technique scheme, described infrared radiation thermometer 3 should avoid being blocked infrared measurement of temperature by heliostat around when mounted
The equipment angle of visual field, and avoid hindering the road of cleaning heliostat.
In technique scheme, described infrared radiation thermometer 3 is done with the measurement result of described temperature measuring device 2 at set intervals
Real time calibration, in calibration, the temperature data being recorded is compared 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 require, if both differences, beyond this threshold range, are led to
Cross to adjust and join warm curve so that this difference is contracted in threshold range in described infrared radiation thermometer 3.
In technique scheme, described infrared measurement of temperature and plugging detecting module 4 receive using from described infrared radiation thermometer 3
Temperature data detect heat extractor 1 whether there is plugging phenomenon, including：
First pretreatment is carried out to temperature data；Then carry out plugging using pretreated temperature data and detect calculating,
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, judge whether plugging；If plugging, plugging is sent out by described infrared measurement of temperature and plugging detecting module 4
Raw notice, plugging place pipeline location and plugging place block number are sent to mirror station control system 6, described mirror station control system
6 will specify the heliostat hot spot being used for melting plugging to be placed at plugging position, carry out melting plugging operation；When infrared radiation thermometer 3
Detect after plugging melted, notify mirror station control system 6 revocation ablation 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, then identify that heat extractor lower limb bends the location of pixels of camber line, according to heat extractor 1 lower limb camber line in the picture
Shape carries out flexible process so that lower limb is horizontal linear in the picture to heat extractor 1 image.
In technique scheme, described infrared measurement of temperature and plugging detecting module 4 receive using 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
Domain, then sends control instruction to mirror station control system 6 so that the heliostat hot spot that target location is highest temperature area moves
To temperature lowermost extent, repeat aforesaid operations repeatedly, until lowermost extent and highest zone temperature close.
The utility model has the advantage of：
1st, this utility model uses infrared measurement of temperature equipment to detect heat extractor molten salt pipeline plugging situation, and is directed to plugging operating mode
Carry out corresponding control operation, melt plugging.Heat extractor service life can be improved with effective protection heat extractor.
2nd, this utility model solves that heat extractor 1 surface temperature under working condition is higher, bad places temperature sensor
Problem.And measurement point directly determines, cost is relatively low by thermal imaging detector pixel count.Real-time is good.This temp testing controlling system
Can be very good to follow the tracks of the distribution of heat extractor surface energy flux density, hot-spot or local can be prevented effectively from by control system
Supercool, protect the heat-conducting medium pipeline of heat extractor behind well.
Brief description
Fig. 1 is the structural representation that thermal tower type heat extractor plugging of the present utility model detects reply control system；
Fig. 2 is the arrangement schematic diagram of the infrared radiation thermometer in this utility model.
Drawing explanation：
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 system
Specific embodiment
In conjunction with accompanying drawing, the utility model will be further described.
With reference to Fig. 1, thermal tower type heat extractor plugging of the present utility model detects reply control system and includes：Temperature measuring device 2,
Infrared radiation thermometer 3, infrared measurement of temperature and plugging detecting module 4；Wherein, described temperature measuring device 2 is arranged on tower type solar energy thermal power generation
The back side of the heat extractor 1 of system；Described infrared radiation thermometer 3 is arranged on the surrounding of heat extractor 1, tower-type solar thermal power generating system
The ground location of Jing Chang, it is communicated to connect with infrared measurement of temperature and plugging detecting module 4；Described infrared measurement of temperature and plugging detecting module
4 mirror station control systems 6 with tower-type solar thermal power generating system communicate to connect；When thermal tower type Jing Chang works, tower too
The direct solar radiation of the sun is all concentrated and is reflected on heat extractor 1, by described infrared radiation thermometer by the heliostat 5 of sun energy heat generating system
The REAL TIME INFRARED THERMAL IMAGE temperature of 3 shootings carries out real time calibration by the temperature measuring device 2 at the heat extractor back side, and described infrared radiation thermometer 3 is remembered
The data of record is transferred to infrared measurement of temperature and plugging detecting module 4；By the analytical calculation of infrared measurement of temperature and plugging detecting module 4,
Feed back to mirror station control system 6, thus heliostat 5 is carried out with the operation under specific operation.
Below to thermal tower type heat extractor plugging of the present utility model detect reply control system in all parts do into
The explanation of one step.
Described temperature measuring device 2 can be thermometric thermal resistance or 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 used 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, only needs to dispose one in Jing Changzhong
Platform infrared radiation thermometer carries out monitor in real time to heat extractor；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 with 360 deg no dead angle measurement.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 block and road conditions in front of consideration.Avoid by the settled date around
Mirror blocks the infrared measurement of temperature equipment angle of visual field, and avoids hindering the road of cleaning heliostat.
Described infrared radiation thermometer 3 recorded data includes two types, and one kind is infrared picture data, described infrared figure
As data qualitatively describes the surface temperature of the object of observation (as heat extractor 1), as high local color of image in temperature is deep,
The low local color of image of temperature is than shallower；Described infrared picture data can describe with a matrix type and transmit；Another kind of
It is temperature data, described temperature data quantitatively describes the surface temperature of the object of observation (as heat extractor 1), such as degree Celsius to come
The temperature of each point of description object of observation surface；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 is 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 being recorded and the measurement result of temperature measuring device 2 is needed to be compared, if both differences are in a threshold
Then it is assumed that precision coincidence measurement requires in the range of value, if both differences are beyond this threshold range, by adjusting infrared survey
Warm curve is joined so that this difference is contracted in threshold range in the demarcating module of warm instrument 3.Described threshold value needs root in practice
To determine its specific value according to the heatproof extreme value of heat extractor 1, can be 20 DEG C or 10 DEG C, can also be 5 DEG C.
Described infrared measurement of temperature and plugging detecting module 4 after the data receiving described infrared radiation thermometer 3 transmission, Neng Gouli
Detect heat extractor 1 with temperature data therein and whether there is plugging phenomenon.When detecting plugging phenomenon, first temperature data is entered
Row pretreatment；Then carry out plugging using pretreated temperature data and detect calculating, 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 plugging, plugging is notified by infrared measurement of temperature and plugging detecting module 4, plugging place pipeline position
Put and plugging place block number is sent to mirror station control system 6, mirror station control system 6 will specify the settled date being used for melting plugging
Mirror hot spot is placed at plugging position, carries out melting plugging operation；After infrared radiation thermometer 3 detects plugging and melted, notify
Mirror station control system 6 revocation ablation plugging operation.
Wherein, infrared measurement of temperature and plugging detecting module 4 are the reason carrying out pretreatment to temperature data：Due to infrared survey
Warm instrument 3 is positioned over subaerial position, and its visual field primary optical axis and heat extractor surface have certain elevation angle relation, in infrared measurement of temperature
In the raw temperature data of instrument output, the lower edges of heat extractor 1 assume semilune, are unfavorable for the detection of plugging.Described pre- place
Reason specifically includes：Ensure heat extractor 1 upright placement in the image of raw temperature data first, then identify suction in the picture
Hot device lower limb bends the location of pixels of camber line, according to heat extractor 1 lower limb arc shape, the image of heat extractor 1 is stretched
Process so that lower limb is horizontal linear in the picture.
Wherein, plugging place pipeline location can determine by the calibration of plugging position, plugging place block number can pass through
Block calibration determines.When block is calibrated, the division of plugging place block is to be determined according to selected heliostat size, heliostat
Area is bigger, and plugging block divides bigger.Block can be for 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 in the operation interface of this control system.
Described infrared measurement of temperature and plugging detecting module 4 can also be using the data receiving from infrared radiation thermometer 3, with outside
Mirror station control system 6 coordinate, make heat extractor 1 surface temperature uniform.This process includes：Passed from infrared radiation thermometer 3 first
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 the heliostat hot spot that target location is highest temperature area moves to temperature lowermost extent, repeat above-mentioned
Operation is multiple, until lowermost extent and highest zone temperature close.
It should be noted last that, it will be understood by those within the art that, to the technical solution of the utility model
Modify or equivalent, without departure from the spirit and scope of technical solutions of the utility model, it all should be covered in this reality
In the middle of new right.
Claims (5)
1. a kind of thermal tower type heat extractor plugging detects 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
Face position, it is communicated to connect with described infrared measurement of temperature and plugging detecting module (4)；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), and described infrared measurement of temperature and plugging are visited
Surveying module (4) and detect whether plugging phenomenon occurs by analytical calculation, if there is plugging phenomenon, feeding back to mirror station control system
(6), by the control ablation plugging to described heliostat (5).
2. thermal tower type heat extractor plugging according to claim 1 detects reply control system it is characterised in that described red
Outer thermometric and plugging detecting module (4) also utilize the data receiving from described infrared radiation thermometer (3), control with outside Jing Chang
System (6) coordinates, and makes described heat extractor (1) surface temperature uniform.
3. thermal tower type heat extractor plugging according to claim 1 and 2 detects reply control system it is characterised in that going back
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 real time calibration is carried out by temperature measuring device (2).
4. thermal tower type heat extractor plugging according to claim 3 detects reply control system it is characterised in that described survey
Warm device (2) is thermometric thermal resistance or temperature thermocouple.
5. thermal tower type heat extractor plugging according to claim 1 and 2 detects 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 most of 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).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620861357.3U CN205981462U (en) | 2016-08-09 | 2016-08-09 | Reply control system is surveyed to stifled pipe of tower heat absorber of light and heat based on infrared temperature measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620861357.3U CN205981462U (en) | 2016-08-09 | 2016-08-09 | Reply control system is surveyed to stifled pipe of tower heat absorber of light and heat based on infrared temperature measurement |
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| Publication Number | Publication Date |
|---|---|
| CN205981462U true CN205981462U (en) | 2017-02-22 |
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ID=59976570
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620861357.3U Expired - Fee Related CN205981462U (en) | 2016-08-09 | 2016-08-09 | Reply control system is surveyed to stifled pipe of tower heat absorber of light and heat based on infrared temperature measurement |
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| Country | Link |
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| CN (1) | CN205981462U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107843348A (en) * | 2017-12-14 | 2018-03-27 | 东方电气集团东方锅炉股份有限公司 | A kind of heat dump energy-flux density measurement apparatus and measuring method |
-
2016
- 2016-08-09 CN CN201620861357.3U patent/CN205981462U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107843348A (en) * | 2017-12-14 | 2018-03-27 | 东方电气集团东方锅炉股份有限公司 | A kind of heat dump energy-flux density measurement apparatus and measuring method |
| CN107843348B (en) * | 2017-12-14 | 2023-05-30 | 东方电气集团东方锅炉股份有限公司 | Device and method for measuring energy flow density of heat absorber |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170222 Termination date: 20190809 |