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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- 239000006096 absorbing agent Substances 0.000 title claims abstract description 93
- 238000009529 body temperature measurement Methods 0.000 title claims abstract description 39
- 238000001514 detection method Methods 0.000 claims abstract description 42
- 238000010248 power generation Methods 0.000 claims abstract description 25
- 238000004891 communication Methods 0.000 claims abstract description 17
- 230000005855 radiation Effects 0.000 claims abstract description 7
- 230000005540 biological transmission Effects 0.000 claims abstract description 3
- 238000004364 calculation method Methods 0.000 claims abstract description 3
- 239000012141 concentrate Substances 0.000 claims abstract description 3
- 230000010485 coping Effects 0.000 claims description 5
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- 238000003384 imaging method Methods 0.000 claims description 3
- 238000004458 analytical method Methods 0.000 claims description 2
- 230000004044 response Effects 0.000 claims 1
- 150000003839 salts Chemical class 0.000 description 9
- 238000005259 measurement Methods 0.000 description 8
- 230000000903 blocking effect Effects 0.000 description 5
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
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- 230000004907 flux Effects 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000007781 pre-processing Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 239000013529 heat transfer fluid Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000013021 overheating Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 238000001931 thermography Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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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
The utility model relates to a tower solar-thermal power generation field of fused salt, in particular to reply control system is surveyed to stifled pipe of tower heat absorber of light and heat based on infrared temperature measurement.
Background
Solar thermal power generation is an important technical approach for large-scale development and utilization of solar energy, and power generation is performed by converting solar energy into heat energy and converting heat energy.
Solar tower power generation is one of solar thermal power generation, and is a power generation system in which solar radiation is reflected to a heat absorber arranged on a heat absorption tower through a heliostat tracking the movement of the sun to obtain a high-temperature heat transfer medium, and a high-temperature heat transfer fluid directly or indirectly passes through thermal circulation. The design concept of tower solar thermal power generation is originated from the Soviet Union of the 50 th century in the 20 th century, developed in the 80 th century, and tower solar photothermal power stations were successively built in Spain, Italy, the United states and the French nations.
The tower type solar thermal power generation system can realize a light condensation ratio of 200-1000, and the average heat flux density of the heat absorber can reach 300-1000 kW/m2The working temperature can exceed 1000 ℃, and the scale of the power station can reach 30-400 MWe. The tower type heat absorber can be divided into a molten salt heat absorber, a water medium heat absorber, an air heat absorber, a solid particle heat absorber and the like according to different heat absorbing media.
The molten salt tower technology is a tower type solar thermal power generation technology which utilizes molten salt as a heat transfer medium. When the heliostat reflects sunlight onto the heat absorber, the heat is taken away by the molten salt flowing in the pipeline of the heat absorber. Because the solar energy light-gathering energy flow density is very high and has nonuniformity and instability, if the intensity of sunlight is suddenly weakened or the natural environment suddenly changes, the temperature of the fused salt at the interface of the outlet container or the inlet container and the pipeline is reduced to the freezing point, so that the fused salt is solidified when the pipeline of the heat absorber flows, the pipe screen is blocked, and the pipe blocking is formed. The pipe blocking has great potential safety hazard to the heat absorber, if the pipe blocking phenomenon takes place, the fused salt no longer flows in the pipeline, can't take away the solar heat that the heliostat reflected, and local temperature acutely risees, causes the heat absorber material thermal stress to destroy, influences heat absorber life.
In the prior art, the surface temperature of the heat absorption gas is usually measured by installing a temperature measuring component on the surface of a heat absorber, and then the pipe blockage phenomenon is detected. However, this method has the defects of few measuring points and incomplete detection of the temperature of the heat absorber, and is not favorable for timely detecting and finding the occurrence of the pipe blockage phenomenon.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art and to the less problem of heat absorber surface temperature measurement difficulty and measuring point to a stifled pipe detection reply control system of tower heat absorber based on infrared temperature measurement is provided.
In order to achieve the above object, the utility model provides a reply control system is surveyed to stifled pipe of tower heat absorber of light and heat, include: the system comprises an infrared thermometer 3 and an infrared temperature measurement and pipe blockage detection module 4; wherein,
the infrared temperature measuring instrument 3 is arranged on the periphery of the heat absorber 1 and the ground position of a mirror field of the tower type solar thermal power generation system and is in communication connection with the infrared temperature measuring and pipe blockage detecting module 4; the infrared temperature measurement and pipe blockage detection module 4 is in communication connection with a mirror field control system 6 of the tower type solar thermal power generation system; when tower mirror field during operation of light and heat, tower solar thermal power generation system's heliostat 5 all concentrate the reflection in with the direct radiation of sun on the heat absorber 1, the data transmission that infrared thermometer 3 recorded is for infrared temperature measurement and stifled pipe detection module 4, whether infrared temperature measurement and stifled pipe detection module 4 takes place through analysis calculation detection stifled pipe phenomenon, if take place stifled pipe phenomenon then feed back to mirror field control system 6, it is right through the control ablation stifled pipe of heliostat 5.
In the above technical solution, the infrared temperature measurement and pipe blockage detection module 4 further utilizes the data received from the infrared thermometer 3 to cooperate with an external mirror field control system 6, so that the surface temperature of the heat absorber 1 is uniform.
Among the above-mentioned technical scheme, still include temperature measuring device 2, temperature measuring device 2 installs the back at tower solar thermal power generation system's heat absorber 1, the real-time infrared temperature that infrared thermometer 3 shot carries out real-time calibration through temperature measuring device 2.
In the above technical scheme, the temperature measuring device 2 is a temperature measuring thermal resistor or a temperature measuring thermocouple.
In the above technical solution, the infrared thermometer 3 includes: the infrared long-focus lens, the infrared temperature measuring machine core and the communication component are arranged on the shell; the infrared telephoto lens can place the heat absorber 1 in most imaging fields of view; the communication assembly is used for realizing communication connection between the infrared thermometer 3 and the infrared temperature measurement and pipe blockage detection module 4.
In the above technical solution, the number of the infrared thermometers 3 is related to the type of the heat absorber 1; when the heat absorber 1 is a cavity type heat absorber, only one infrared thermometer 3 needs to be arranged in a mirror field to monitor the heat absorber 1 in real time; when the heat absorber 1 is an external circumferential heat absorber, a plurality of infrared thermometers 3 need to be placed around the heat absorber 1 for monitoring, so that three hundred sixty degrees of dead angle-free measurement of the heat absorber 1 is realized.
In the technical scheme, when the infrared temperature measuring instrument 3 is installed, the heliostat should be prevented from shielding the angle of view of the infrared temperature measuring equipment and obstructing the cleaning of the heliostat road.
In the above technical solution, the infrared thermometer 3 performs real-time calibration with the measurement result of the temperature measuring device 2 at intervals, during the calibration, the measured temperature data is compared with the measurement result of the temperature measuring device 2, if the difference between the two is within a threshold range, the precision is considered to meet the measurement requirement, and if the difference between the two exceeds the threshold range, the difference is reduced to the threshold range by adjusting the temperature distribution curve in the infrared thermometer 3.
In the above technical solution, the infrared temperature measurement and pipe blockage detection module 4 detects whether the heat absorber 1 has a pipe blockage phenomenon by using the temperature data received by the infrared thermometer 3, and includes:
firstly, preprocessing temperature data; then, the preprocessed temperature data is used for detecting and calculating the pipe blockage, and the infrared temperature measurement and pipe blockage detection module 4 identifies whether the pipe is blocked or not according to the characteristics because the temperature of the pipe blockage pipeline is higher than the temperature of the pipelines on the left side and the right side; if the pipe blockage occurs, the infrared temperature measurement and pipe blockage detection module 4 sends a pipe blockage occurrence notice, a pipe position where the pipe blockage is located and a block number where the pipe blockage is located to the mirror field control system 6, and the mirror field control system 6 places heliostat light spots appointed for melting the pipe blockage at the pipe blockage position for melting pipe blockage; when the infrared thermometer 3 detects that the blocked tube is ablated, the scope field control system 6 is informed to cancel the ablation tube blocking operation.
In the above technical solution, the pretreatment specifically includes: firstly, the heat absorber 1 is ensured to be vertically placed in an image of temperature data, then the pixel position of a curved arc line of the lower edge of the heat absorber is identified in the image, and the image of the heat absorber 1 is subjected to stretching processing according to the shape of the curved arc line of the lower edge of the heat absorber 1, so that the lower edge is a horizontal straight line in the image.
In the above technical solution, the infrared temperature measurement and pipe blockage detection module 4 cooperates with an external mirror field control system 6 by using the temperature data received from the infrared thermometer 3, so that the surface temperature of the heat absorber 1 is uniform; the method specifically comprises the following steps: firstly, determining the highest temperature region and the lowest temperature region of the surface of the heat absorber 1 from the temperature data transmitted by the infrared thermometer 3, then sending a control instruction to the mirror field control system 6 to enable heliostat light spots with target positions being the highest temperature region to move to the lowest temperature region, and repeating the operation for multiple times until the temperatures of the lowest region and the highest region are similar.
The utility model has the advantages that:
1. the utility model discloses use infrared temperature measurement equipment to survey the stifled pipe condition of heat absorber fused salt pipeline to carry out corresponding control operation to stifled pipe operating mode, melt stifled pipe. The heat absorber can be effectively protected, and the service life of the heat absorber is prolonged.
2. The utility model provides a 1 surface temperature of heat absorber is higher under the operating condition, does not well place temperature sensor's problem. And the measuring point is directly determined by the number of pixels of the thermal imaging detector, so that the cost is low. The real-time performance is good. The temperature measurement control system can well track the distribution of energy flux density on the surface of the heat absorber, can effectively avoid local overheating or local supercooling through the control system, and well protects a heat-conducting medium pipeline behind the heat absorber.
Drawings
Fig. 1 is a schematic structural view of a pipe blockage detection coping control system of a photo-thermal tower type heat absorber of the present invention;
fig. 2 is a schematic layout of the infrared thermometer of the present invention.
Description of the drawings:
1 Heat absorber 2 temperature measuring device
3 infrared thermometer 4 infrared temperature measurement and pipe blockage detection module
6 mirror field control systems of 5 heliostats
Detailed Description
The invention will now be further described with reference to the accompanying drawings.
Referring to fig. 1, the utility model discloses a stifled pipe of tower heat absorber of light and heat surveys reply control system includes: the device comprises a temperature measuring device 2, an infrared thermometer 3 and an infrared temperature measuring and pipe blockage detecting module 4; the temperature measuring device 2 is arranged on the back of a heat absorber 1 of the tower type solar thermal power generation system; the infrared temperature measuring instrument 3 is arranged on the periphery of the heat absorber 1 and the ground position of a mirror field of the tower type solar thermal power generation system and is in communication connection with the infrared temperature measuring and pipe blockage detecting module 4; the infrared temperature measurement and pipe blockage detection module 4 is in communication connection with a mirror field control system 6 of the tower type solar thermal power generation system; when the photo-thermal tower type mirror field works, the heliostat 5 of the tower type solar thermal power generation system intensively reflects direct radiation of the sun on the heat absorber 1, real-time infrared temperature shot by the infrared thermometer 3 is calibrated in real time through the temperature measuring device 2 on the back of the heat absorber, and data recorded by the infrared thermometer 3 is transmitted to the infrared temperature measuring and pipe blockage detecting module 4; and the infrared temperature measurement and pipe blockage detection module 4 is used for analyzing and calculating and feeding back to the heliostat field control system 6, so that the heliostat 5 is operated under a specific working condition.
The following is the utility model discloses a stifled pipe of tower heat absorber of light and heat is surveyed each part among the reply control system and is done further explanation.
The temperature measuring device 2 can be a temperature measuring thermal resistor or a temperature measuring thermocouple.
The infrared thermometer 3 includes: the infrared long-focus lens, the infrared temperature measuring machine core and the communication component are arranged on the shell; the parameters of the infrared telephoto lens are matched according to actual conditions, so that the infrared telephoto lens can just place the heat absorber 1 in most imaging fields; the communication assembly is used for realizing communication connection between the infrared thermometer 3 and the infrared temperature measurement and pipe blockage detection module 4.
The number of said infrared thermometers 3 is related to the type of heat absorbers 1. The heat absorber in the tower type solar thermal power generation system is mainly divided into two types, namely a cavity type heat absorber and an external circumference type heat absorber, and for the cavity type heat absorber, only one infrared thermometer needs to be arranged in a mirror field to monitor the heat absorber in real time; for an external circumferential heat absorber, a plurality of infrared thermometers 3 need to be placed for monitoring, the specific number of the infrared thermometers 3 depends on the specific size of the heat absorber, the plurality of infrared thermometers 3 are guaranteed to be uniformly distributed around the heat absorber 1, and the heat absorber 1 is subjected to measurement without dead angles of three hundred and sixty degrees. For the external circumferential heat absorber, the number of the infrared thermometers 3 may be four, eight or sixteen, and in the example shown in fig. 2, there are four infrared thermometers 3 uniformly distributed around the heat absorber 1.
The installation position of the infrared thermometer 3 also needs to consider the front shielding and road conditions. The shielding of the field angle of the infrared temperature measuring equipment by surrounding heliostats is avoided, and the road for cleaning the heliostats is prevented from being obstructed.
The data recorded by the infrared thermometer 3 includes two types, one is infrared image data, and the infrared image data qualitatively describes the surface temperature of an observed object (such as the heat absorber 1), for example, the image color is darker at a high temperature and lighter at a low temperature; the infrared image data can be described and transmitted in a matrix form; the other is temperature data quantitatively describing the surface temperature of an observation object (such as the heat absorber 1), such as describing the temperature of each point on the surface of the observation object in degrees centigrade; the temperature data can be described and transmitted in the form of a matrix. The two types of data recorded by the infrared thermometer 3 need to be transmitted to the infrared temperature measurement and pipe blockage detection module 4. The infrared image data is used as an image interface to be provided for operators to watch, and the temperature data can be used for pipe blockage detection.
The infrared thermometer 3 needs to be calibrated with the measurement result of the temperature measuring device 2 in real time at intervals, the measured temperature data needs to be compared with the measurement result of the temperature measuring device 2 during calibration, if the difference value of the two is within a threshold range, the precision is considered to meet the measurement requirement, and if the difference value of the two exceeds the threshold range, the difference value is reduced to be within the threshold range by adjusting a temperature distribution curve in a calibration module of the infrared thermometer 3. In practice, the specific value of the threshold value needs to be determined according to the temperature-resistant extreme value of the heat absorber 1, and the temperature-resistant extreme value can be 20 ℃, 10 ℃ or 5 ℃.
After receiving the data transmitted by the infrared thermometer 3, the infrared temperature measurement and pipe blockage detection module 4 can detect whether the heat absorber 1 is blocked by using the temperature data therein. When detecting the pipe blockage phenomenon, firstly preprocessing temperature data; then, the preprocessed temperature data is used for detecting and calculating the pipe blockage, and because the temperature of the pipe blockage pipeline (pipe row) is higher than the temperature of the pipelines (pipe rows) on the left side and the right side, the infrared temperature measurement and pipe blockage detection module 4 identifies whether the pipe is blocked or not according to the characteristics; if the pipe blockage occurs, the infrared temperature measurement and pipe blockage detection module 4 sends a pipe blockage occurrence notice, a pipe position where the pipe blockage is located and a block number where the pipe blockage is located to the mirror field control system 6, and the mirror field control system 6 places heliostat light spots appointed for melting the pipe blockage at the pipe blockage position for melting pipe blockage; when the infrared thermometer 3 detects that the blocked tube is ablated, the scope field control system 6 is informed to cancel the ablation tube blocking operation.
Wherein, the reason that infrared temperature measurement and stifled pipe detection module 4 carried out the preliminary treatment to temperature data lies in: because the infrared thermometer 3 is placed at a position close to the ground, the main optical axis of the field of view and the surface of the heat absorber have a certain elevation angle relationship, in the original temperature data output by the infrared thermometer, the upper edge and the lower edge of the heat absorber 1 are half-moon-shaped, which is not beneficial to the detection of pipe blockage. The pretreatment specifically comprises: firstly, the heat absorber 1 is ensured to be vertically placed in an image of original temperature data, then the pixel position of a curved arc line of the lower edge of the heat absorber is identified in the image, and the image of the heat absorber 1 is subjected to stretching processing according to the shape of the curved arc line of the lower edge of the heat absorber 1, so that the lower edge is a horizontal straight line in the image.
The position of the pipeline where the pipe blockage is located can be determined through calibration of the position of the pipe blockage, and the number of the block where the pipe blockage is located can be determined through block calibration. And when the blocks are calibrated, the division of the blocks where the pipe blockage is located is determined according to the sizes of the selected heliostats, and the larger the area of the heliostat is, the larger the division of the pipe blockage blocks is. The blocks can be in a grid arrangement shape and can also be arranged according to the shape of the pipeline.
After receiving the infrared image data, the infrared temperature measurement and pipe blockage detection module 4 forwards the infrared image data to a control system of the tower-type photo-thermal field, and displays the infrared image data on an operation interface of the control system.
The infrared temperature measurement and pipe blockage detection module 4 can also utilize data received from the infrared thermometer 3 to be matched with an external mirror field control system 6, so that the surface temperature of the heat absorber 1 is uniform. This process includes: firstly, determining the highest temperature region and the lowest temperature region of the surface of the heat absorber 1 from the temperature data transmitted by the infrared thermometer 3, then sending a control instruction to the mirror field control system 6 to enable heliostat light spots with target positions being the highest temperature region to move to the lowest temperature region, and repeating the operation for multiple times until the temperatures of the lowest region and the highest region are similar.
Finally, it should be understood by those skilled in the art that modifications and equivalents may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention, and all such modifications and equivalents are intended to be encompassed by the scope of the claims of the present invention.
Claims (5)
1. The utility model provides a stifled pipe of tower heat absorber of light and heat surveys reply control system which characterized in that includes: the device comprises an infrared thermometer (3) and an infrared temperature measurement and pipe blockage detection module (4); wherein,
the infrared temperature measuring instrument (3) is arranged on the periphery of the heat absorber (1) and the ground position of a mirror field of the tower type solar thermal power generation system and is in communication connection with the infrared temperature measuring and pipe blockage detecting module (4); the infrared temperature measurement and pipe blockage detection module (4) is in communication connection with a mirror field control system (6) of the tower type solar thermal power generation system; when tower mirror field during operation of light and heat, tower solar thermal power generation system's heliostat (5) all concentrate the reflection in with solar direct radiation on heat absorber (1), the data transmission that infrared thermometer (3) recorded is for infrared temperature measurement and stifled pipe detection module (4), whether infrared temperature measurement and stifled pipe detection module (4) take place through analysis calculation detection stifled pipe phenomenon, if take place stifled pipe phenomenon then feed back to mirror field control system (6), through right the stifled pipe of control ablation of heliostat (5).
2. The photo-thermal tower type heat absorber pipe blockage detection coping control system according to claim 1, wherein the infrared temperature measurement and pipe blockage detection module (4) is further matched with an external mirror field control system (6) by utilizing data received from the infrared thermometer (3) to enable the surface temperature of the heat absorber (1) to be uniform.
3. The photo-thermal tower type heat absorber pipe blockage detection response control system according to claim 1 or 2, further comprising a temperature measuring device (2), wherein the temperature measuring device (2) is installed on the back of the heat absorber (1) of the tower type solar thermal power generation system; and the real-time infrared temperature shot by the infrared thermometer (3) is calibrated in real time through the temperature measuring device (2).
4. The photo-thermal tower type heat absorber pipe blockage detection coping control system according to claim 3, wherein the temperature measuring device (2) is a temperature measuring thermal resistor or a temperature measuring thermocouple.
5. The photothermal tower heat absorber pipe blockage detection coping control system according to claim 1 or 2, wherein the infrared thermometer (3) comprises: the infrared long-focus lens, the infrared temperature measuring machine core and the communication component are arranged on the shell; the infrared telephoto lens can place the heat absorber (1) in most of imaging fields of view; the communication assembly is used for realizing communication connection between the infrared thermometer (3) and the infrared temperature measurement and pipe blockage detection module (4).
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| 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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| 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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| CN205981462U true CN205981462U (en) | 2017-02-22 |
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| 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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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 |
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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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Granted publication date: 20170222 Termination date: 20190809 |