CN105387999B - A kind of method for testing trough type solar heat-collector optical efficiency - Google Patents
A kind of method for testing trough type solar heat-collector optical efficiency Download PDFInfo
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- CN105387999B CN105387999B CN201510825493.7A CN201510825493A CN105387999B CN 105387999 B CN105387999 B CN 105387999B CN 201510825493 A CN201510825493 A CN 201510825493A CN 105387999 B CN105387999 B CN 105387999B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
- G01M11/02—Testing optical properties
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
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Abstract
The present invention provides a kind of method for testing trough type solar heat-collector optical efficiency, this method carries out optical efficiency test using a workbench, including：Trough type solar heat-collector to be detected is installed in dual-axis rotation tracking sun subsystem；Working media circuit subsystem and the thermal-collecting tube of trough type solar heat-collector to be detected are connected, composition test loop working medium circuit；Dual-axis rotation tracking sun subsystem adjusts the inclination angle and azimuth of trough type solar heat-collector to be detected, realizes the two-dimensional tracking to the sun；Treat detection trough type solar heat-collector and carry out optical efficiency test.The present invention passes through two-dimensional solar energy tracking and temperature adjustment, effectively evade the influence of cosine losses and radiation loss to solar energy heating process, improve the accuracy of detection of trough type solar heat-collector optical efficiency, use General design thought and mechanical structure at the same time, disclosure satisfy that different model, size trough type solar heat-collector detection demand, adaptability is preferable.
Description
Technical field
The present invention relates to the performance detection technical field of solar light-condensing and heat-collecting device, more particularly to a kind of test slot type is too
The method of positive energy heat collector optical efficiency.
Background technology
Under the background of rapid economic development, the mankind are increasing to the demand of the energy, coal, oil and natural gas etc.
Fossil fuel largely consumes, and that brings therewith is not only drastically reducing for energy resources reserves, and it is dirty will also to produce serious environment
Dye, especially a large amount of CO2The discharge of isothermal chamber gas will influence the ecological balance in the whole world.
The total output of primary energy of China rises to 29.7 hundred million tons in 2010 from 13.5 hundred million tons of standard coals of 2000
Standard coal, amplification reach 120%, year primary energy consumption amount also risen to 2010 by 14.6 hundred million tons of standard coals of 2000
32.5 hundred million tons of standard coals, total amount are doubled, and add 122.6%.Especially it is noted that to Chinese oil pair in 2012
Outer interdependency has reached 56.4%.In face of growing demand for energy, while energy utilization rate is improved, should also enrich
The scale of existing regenerative resource utilizes.
On the other hand, the solar energy resources in China is very abundant, year solar radiation value be about 1050~2450kWh
(m2A), more than 1050kWh (m2A) area accounts for more than the 96% of national territorial area.The annual day solar radiation in China
Measure as 180W/m2, it is low that the distribution trend of average day solar radiation quantity shows as Xi Gaodong.In the Tibet in China, Qinghai and Xinjiang
Deng west area, solar energy resources is extremely abundant, the sunshine-duration in year be even more when 3000 is small more than, it is rich to belong to world's solar energy resources
One of rich area.
Since the irradiation intensity of solar energy is relatively low, recycled after optically focused need to be carried out to solar energy, to obtain higher temperature
Thermal energy, the process are needed by focusing solar collector.Focusing solar collector will be thrown in a manner of reflecting or reflecting by concentrator
The solar light for being mapped to optical port is concentrated and is projected on absorber and forms focal plane, and absorber converts light energy into thermal energy, then by inhaling
Medium is received to take away.Since the energy-flux density of receiver is very high, the temperature more much higher than ordinary flat heat collector etc., energy can be reached
Enough more favorable condition is provided for solar energy thermal-power-generating and solar heat chemical utilization.
Currently, the Photospot solar thermo-power station of the application commercialization of large-scale solar-energy light collector or show-how
In, condenser system mainly includes moveable speculum and solar tracking apparatus, according to optically focused type can be divided into parabolic trough type,
Linear Fresnel formula, tower and dish-style, wherein first two use line spot mode, and then both are using point spot mode, poly-
There are larger difference in terms of light ratio and heat-collecting temperature.These condenser systems have been applied to MW grades of commercializations or show-how too at present
In positive energy heat generating system, solar radiation can be converted into high temperature solar thermal energy using beam condensing unit, for heating heat conduction
Medium (empty gas and water, vapor, conduction oil melt salt etc.), is then heated by heat exchanger and produces the works done such as high-temperature steam again
Working medium, electric energy is produced finally by traditional hot merit thermodynamic cycle (Rankine, Bretton or Stirling cycle).In world wide
Interior, existing multiple Demonstration Stations using slot type and tower type solar generation technology are put into commercial operation, and with groove type solar
The maturity highest of light and heat collection technology, equipment production cost also will be reduced persistently.
Currently, groove type solar thermal-arrest is being improved in trough type solar power generation station energetically still in the situation of sustainable growth
While technical performance, the performance detection of trough type solar heat-collector should also be as causing enough attention, will only detect skill
Art incorporates the characteristic of actual moving process, while improves accuracy of detection, can effectively improve the utility of solar energy, and
Reduce production cost.
The content of the invention
(1) technical problems to be solved
In view of this, it is a primary object of the present invention to provide a kind of survey for testing trough type solar heat-collector optical efficiency
Method for testing, for examining the optical property of trough type solar heat-collector, with solve current optical Efficiency test method it is cumbersome and survey
The problem of accuracy of measurement is relatively low.
(2) technical solution
According to an aspect of the invention, there is provided a kind of method for testing trough type solar heat-collector optical efficiency, should
Method carries out optical efficiency test using a workbench to trough type solar heat-collector, and the workbench includes：Twin shaft revolves
Turn tracking sun subsystem 90 and working media circuit subsystem, it is anti-that trough type solar heat-collector 10 to be detected includes parabolic concentration
Mirror 11 and thermal-collecting tube 12 are penetrated, this method includes：Step A：Trough type solar heat-collector 10 to be detected is revolved installed in the twin shaft
Turn in tracking sun subsystem 90；Step B：Working media circuit subsystem passes through working medium pipeline and the slot type sun to be detected
The thermal-collecting tube 12 of energy heat collector 10 is connected, composition test loop working medium circuit；Step C：The dual-axis rotation tracks sun subsystem
The inclination angle and azimuth of the adjustment of system 90 trough type solar heat-collector 10 to be detected, realize the two-dimensional tracking to the sun；Step G：It is right
Detect trough type solar heat-collector 10 and carry out optical efficiency test.
(3) beneficial effect
It can be seen that from above-mentioned technical proposal, the invention has the advantages that：
(1) by measuring solar energy elevation angle and azimuth, and the actual inclination angle of trough type solar heat-collector to be detected
And azimuth, treat detection trough type solar heat-collector and carry out inclination angle and the accurate control of azimuthal two dimension, so as to evade the sun
Influence of the cosine losses caused by incidence angle to solar energy heating process, can be more accurately to trough type solar heat-collector
Optical efficiency is detected；
(2) it is precisely controlled by the refrigerating capacity to refrigeration machine, the flow velocity of working medium pump, flows through the slot type sun to be detected
The qualitative temperature of the working media of energy heat collector is equal to environment temperature, to evade shadow of the radiation loss to solar energy heating process
Ring, more accurately the optical efficiency of trough type solar heat-collector can be detected；
(3), can be to the groove type solar of different model and size by adjusting the adjustable mechanical structure of workbench
Heat collector is tested, and has the advantages that applicability is wide；
(4) this method technology maturity is higher, can preferably be widely applied.
Brief description of the drawings
Fig. 1 is the knot of the workbench of the test trough type solar heat-collector optical efficiency for present invention method
Structure schematic diagram；
Fig. 2 is the double of the workbench of the test trough type solar heat-collector optical efficiency for present invention method
The structure diagram of axis rotation tracking sun subsystem；
Fig. 3 is for a kind of workbench for testing trough type solar heat-collector optical efficiency of present invention method
Dual-axis rotation tracks the partial enlarged view of sun subsystem；
Fig. 4 is for a kind of workbench for testing trough type solar heat-collector optical efficiency of present invention method
Dual-axis rotation tracks another partial enlarged view of sun subsystem；
Fig. 5 is a kind of method of test trough type solar heat-collector optical efficiency according to the embodiment of the present invention.
【Symbol description】
10- trough type solar heat-collectors to be detected
11- parabolic concentrations speculum, 12- thermal-collecting tubes
20- working media coolers
30- working medium pumps
40- refrigeration machines
50- condensers
60- solar energy irradiation intensity and angle detection module
70- data collection and analysis and control terminal
80- sensor groups
81- the first temperature signal collection elements
82- second temperature signal collecting elements
The 3rd temperature signal collection elements of 83-
84- flow signal acquisition elements
90- dual-axis rotations track sun subsystem
92 '-the second supporting rack of the first supporting racks of 91- rotating shaft support bar 92-
93- collector tube holder 94- mirror support framves
95- is rotated in deceleration driving mechanism 96- bottom platforms
97- Plane Rotation slides
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, below in conjunction with specific embodiment, and reference
Attached drawing, the present invention is described in more detail.
Fig. 1 is the knot of the workbench of the test trough type solar heat-collector optical efficiency for present invention method
Structure schematic diagram.Workbench of the method based on Fig. 1 of the test trough type solar heat-collector optical efficiency of the present invention.
The workbench includes：Dual-axis rotation tracking sun subsystem, working media circuit subsystem, refrigeration system, number
According to collection analysis and control system.The method of the present invention using the workbench to the optical efficiency of trough type solar heat-collector into
Row detection.
Wherein, trough type solar heat-collector 10 to be detected is installed on dual-axis rotation tracking sun subsystem 90, twin shaft rotation
Turn tracking sun subsystem 90 and realize two-dimensional tracking of the trough type solar heat-collector 10 to be detected to solar energy, by slot type to be detected
Solar thermal collector 10 and the pipeline of working media circuit subsystem are connected, and are connected in the pipeline of working media circuit subsystem
Working media cooler 20, it coordinates with refrigeration system carries out heat exchange, and data collection and analysis and control system acquisition parameter are simultaneously
Control system is run, and calculates the optical efficiency of trough type solar heat-collector 10 to be detected.
Fig. 2 is the double of the workbench of the test trough type solar heat-collector optical efficiency for present invention method
The structure diagram of axis rotation tracking sun subsystem.
Dual-axis rotation tracking sun subsystem 90 include rotating shaft support bar 91, the first supporting rack 92, the second supporting rack 92 ',
Collector tube holder 93, mirror support frame 94, bottom platform 96 and plane rotation slide rail 97, are used for realization groove type solar to be detected
Two-dimensional tracking of the heat collector 10 to solar energy.
Trough type solar heat-collector 10 to be detected includes：Parabolic concentration speculum 11 and thermal-collecting tube 12.
90 bottom of dual-axis rotation tracking sun subsystem is Plane Rotation slide 97, and Plane Rotation slide 97 has annular recessed
Groove, is at an upper portion thereof bottom platform 96, and the lower section of bottom platform 96 is equipped with carriage, and carriage is by inlay card to Plane Rotation
In the annular groove of slide 97, and it can slide back and forth.
Above-mentioned carriage can be pulley, and above-mentioned rotating driving device can be motor.
First supporting rack 92 and the second supporting rack 92 ' are located at the two sides midpoint of bottom platform 96 respectively, can be according to be checked
The physical dimension for surveying trough type solar heat-collector 10 adjusts the height of a supporting rack 92 and the second supporting rack 92 '.
As shown in figure 3, the both ends of rotating shaft support bar 91 are located on the first supporting rack 92 and the second supporting rack 92 ', shaft branch
Strut 91 is uniformly arranged has vertical collector tube holder 93 more, and two tools collector tube holder therein is located at the two of rotating shaft support bar 91
End, thermal-collecting tube 12 are installed in collector tube holder 93, and the both sides of rotating shaft support bar 91 are mirror support frame 94, mirror support frame 94
To support and fix parabolic concentration speculum 11, it uses adjustable mechanical structure, can be according to parabolic concentration speculum 11
Physical dimension carry out appropriate adjusting, collector tube holder 93 uses telescopic mechanical structure, gathers for various sizes of parabolic
The focal length of light reflection mirror 11 is adjusted.
Rotating shaft support bar 91 is rotary structure, and by rotating shaft supporting rod 91, detection groove type solar is treated in realization
The adjusting at 10 inclination angle of heat collector.
Working media circuit subsystem include working medium pump 30, working media cooler 20, working medium pipeline and other heat exchange and
Pipeline.Fig. 1 is refer to, working media is pumped in trough type solar heat-collector 10 to be detected by working medium pump 30 and is heated,
Then enter working media cooler 20, working media cooler 20 coordinates with refrigeration system cools down working media, cold
But the working media after is sent into trough type solar heat-collector 10 to be detected again through working medium pump 30 to be circulated.
Refrigeration system includes refrigeration machine 40 and condenser 50, and refrigeration machine 40 uses compression or sorption type refrigerating technology, from
The working media that trough type solar heat-collector 10 to be detected discharges and the low temperature refrigerant water that refrigeration machine 40 produces are cold in working media
But heat exchange is carried out in device 20, to reach cooling effect.
Fig. 1 is refer to, data collection and analysis and control system include：The driving mechanism that is rotated in deceleration 95, installed in shaft branch
The second angle sensor of strut 91, installed in bottom platform 96 central lower rotating driving device and first angle sensing
Device, sensor group 80, solar energy irradiation intensity and angle detection module 60 and data collection and analysis and control terminal 70, for reality
Automatic measurement, automated control and the data analysis meter of existing workbench are calculated.
The driving mechanism that is rotated in deceleration 95 is located on the second supporting rack 92 ', and connects with the rotating shaft support bar 91 on the supporting rack
Connect.The driving mechanism that is rotated in deceleration 95 includes motor and gear reducer etc., it can be rotated with drive shaft supporting rod 91.
Rotating driving device driving bottom platform 96 carries out Plane Rotation.
First angle sensor measures the true bearing angle of trough type solar heat-collector 10 to be detected.
Second angle sensor measures the actual inclination angle of trough type solar heat-collector 10 to be detected.
Solar energy irradiation intensity and angle detection module 60, it measures solar energy irradiation intensity in real time, and monitors solar energy
Elevation angle and azimuth.Wherein, sensor group 80 includes：First temperature signal collection element 81, second temperature signal acquisition
Element 82, the 3rd temperature signal collection element 83, flow signal acquisition element 84.
First temperature signal collection element 81 is installed on the input end of trough type solar heat-collector 10 to be detected, second temperature
Signal collecting element 82 is installed on the port of export of trough type solar heat-collector 10 to be detected, and the 3rd temperature signal collection element 83 is pacified
Mounted in the port of export of working media cooler 20, flow signal acquisition element 84 is installed in trough type solar heat-collector to be detected
10 input end.The flow for temperature information and flow signal acquisition the element collection that three temperature signal collection elements are gathered
Information is received by data collection and analysis and control terminal 70.
In the workbench, except for testing trough type solar heat-collector optical efficiency, by replacing slot type to be detected
Solar thermal collector 10, applies also for other one-dimensional line-focusing solar light-condensing and heat-collecting devices such as test linear Fresnel.
Fig. 4 is a kind of schematic diagram of the method for test trough type solar heat-collector optical efficiency of the present invention.
This method includes：
Step A：Trough type solar heat-collector 10 to be detected is installed in dual-axis rotation tracking sun subsystem 90；
Step A further comprises：
Sub-step A1：Adjust the first supporting rack 92, the height of the second supporting rack 92 ' adapts it to groove type solar to be detected
The physical dimension of heat collector 10；
Sub-step A2：The shape of adjustment mirror support frame 94 adapts it to the geometry of trough type solar heat-collector 10 to be detected
Size；
Sub-step A3：The height of adjustment thermal-collecting tube supporting rack 93 makes solar focusing light be projected on thermal-collecting tube 12.
Step B：Working media circuit subsystem passes through working medium pipeline and trough type solar heat-collector 10 to be detected
Thermal-collecting tube 12 is connected, composition test loop working medium circuit；
Step C：The dual-axis rotation tracking sun subsystem 90 adjusts the inclination angle of trough type solar heat-collector 10 to be detected
And azimuth, realize the two-dimensional tracking to the sun；
Step D：Above-mentioned solar energy azimuth, the true bearing angle of trough type solar heat-collector to be detected 10 are received, is utilized
Both calculate true bearing angle and the azimuthal difference D2 of solar energy, are sent according to D2 to the rotating driving device of bottom platform 96
Drive signal, makes rotating driving device driving bottom platform 96 drive trough type solar heat-collector 10 to be detected to rotate so as to treat
The azimuth for detecting trough type solar heat-collector 10 is equal with the azimuth of solar energy.
Step D further comprises：
Sub-step D1：Receive above-mentioned solar energy azimuth and the true bearing angle of trough type solar heat-collector to be detected 10；
Sub-step D2：Utilize both above-mentioned calculating true bearing angles and the azimuthal difference D2 of solar energy；
Sub-step D3：Drive signal is sent to the rotating driving device of bottom platform 96 according to difference D2, makes it drive bottom
Portion's platform 96 is rotated along Plane Rotation slide 97, and drives trough type solar heat-collector 10 to be detected to rotate so that groove to be detected
The azimuth of formula solar thermal collector 10 is equal with the azimuth of solar energy, eliminates cosine losses caused by solar incident angle to too
The influence of positive energy heat-collecting capacity.
This method further includes after the step D：
Step E：Above-mentioned solar energy elevation angle, the actual inclination angle of trough type solar heat-collector to be detected 10 are received, utilizes two
Person calculates the difference D1 of actual inclination angle and solar energy elevation angle, and drive signal is sent to the driving mechanism 95 that is rotated in deceleration according to D1,
Make the driving mechanism 95 that is rotated in deceleration drive rotating shaft support bar 91 to rotate, and then drive trough type solar heat-collector 10 to be detected to revolve
Turn so that solar energy incident light focuses on back reflection to thermal-collecting tube 12 through parabolic concentration speculum 11.
Step E further comprises：
Sub-step E1：Receive the actual inclination angle of above-mentioned solar energy elevation angle and trough type solar heat-collector to be detected 10；
Sub-step E2：Utilize the two actual inclination angle of calculating and the difference D1 of solar energy elevation angle；
Sub-step E3：The driving mechanism that is rotated in deceleration 95 is rotated according to drive signal drive shaft supporting rod 91, rotating shaft support
Bar 91 drives trough type solar heat-collector 10 to be detected to rotate, and realizes the adjustment at its inclination angle so that solar energy incident light is through parabolic
Condenser mirror 11 focuses on back reflection to thermal-collecting tube 12, is achieved in trough type solar heat-collector 10 to be detected to the two of solar energy
Dimension tracking.
Wherein, step E can also be performed before step D, or be performed at the same time with step D.
This method further includes after step E：
Step F：Receive above-mentioned temperature information and flow information, the flow velocity of refrigerating capacity, working medium pump 30 to refrigeration machine 40 into
Row control, the mean temperature for flowing through the working media of trough type solar heat-collector to be detected are equal to environment temperature, to evade collection
Influence of the 12 external radiation loss of heat pipe to solar energy heating process.
Step F further comprises：
Sub-step F1：Receive the first temperature signal collection element 81, second temperature signal collecting element 82, the 3rd temperature letter
Number temperature information of acquisition elements 83 and the flow information of flow signal acquisition element 84；
Sub-step F2：Refrigerating capacity, the flow velocity of working medium pump 30 to refrigeration machine 40 are controlled；To flowing through slot type to be detected too
The working media temperature of positive energy heat collector 10 is adjusted, and the working media for flowing through trough type solar heat-collector 10 to be detected is put down
Equal temperature is equal to environment temperature, to evade influence of the external radiation loss of thermal-collecting tube 12 to solar energy heating process.
Wherein, step F can also be performed before step E, or be performed at the same time with step E.
Above-mentioned working media mean temperature refers to, is adopted respectively by the first temperature signal collection element 81 and second temperature signal
Collect element 82 gathers, 10 input end working media temperature T1 of trough type solar heat-collector to be detected and port of export working media temperature
Spend the average value of T2.
Sub-step F2 is specifically included：
When the working media mean temperature for flowing through trough type solar heat-collector 10 to be detected is higher than environment temperature, system is increased
The refrigerating capacity of cold 40, and/or accelerate the flow velocity of working medium pump 30, to flow through the work of trough type solar heat-collector 10 to be detected
The mean temperature of medium is equal to environment temperature；
When the working media mean temperature for flowing through trough type solar heat-collector 10 to be detected is less than environment temperature, reduce system
The refrigerating capacity of cold 40, and/or the flow velocity of working medium pump 30 is reduced, to flow through the work of trough type solar heat-collector 10 to be detected
Medium mean temperature is equal to environment temperature.
Step G：Treat detection trough type solar heat-collector 10 and carry out optical efficiency test.
Step G further comprises：
Sub-step G1：The solar thermal energy for being projected to trough type solar heat-collector 10 to be detected and working media are calculated to be checked
Survey the heat-collecting capacity in trough type solar heat-collector 10；
Sub-step G2：By embedded mathematical model, slot type is further calculated too based on thermal balance relevant rudimentary theory
The optical efficiency of positive energy heat collector.
So far, attached drawing is had been combined the present embodiment is described in detail.According to above description, those skilled in the art
There should be clear understanding to a kind of method of test trough type solar heat-collector optical efficiency of the present invention.
It should be noted that in attached drawing or specification text, the implementation that does not illustrate or describe is affiliated technology
Form known to a person of ordinary skill in the art, is not described in detail in field.In addition, the above-mentioned definition to method is not limited in
The various concrete modes mentioned in embodiment, those of ordinary skill in the art simply can be changed or replaced to it, such as：
(1) step E can also be performed before step D, or be performed at the same time with step D；
(2) step F can also be performed before step E, or be performed at the same time with step E；
(3) direction term mentioned in embodiment, such as " on ", " under ", "front", "rear", "left", "right" etc., are only ginsengs
The direction of attached drawing is examined, is not used for limiting the scope of the invention；
(4) unless specifically described or the step of must sequentially occur, there is no restriction in listed above for the order of above-mentioned steps,
And it can change or rearrange according to required design；
(5) consideration that above-described embodiment can be based on design and reliability, the collocation that is mixed with each other uses or and other embodiment
Mix and match uses, i.e., the technical characteristic in different embodiments can freely form more embodiments.
In conclusion the present invention provides a kind of method for testing trough type solar heat-collector optical efficiency.Can effectively it advise
The influence of cosine losses and radiation loss to solar energy heating process is kept away, improves the detection of trough type solar heat-collector optical efficiency
Precision, while General design thought and mechanical structure are used, it disclosure satisfy that the trough type solar heat-collector of different model, size
Detection demand, adaptability is preferable.
Particular embodiments described above, has carried out the purpose of the present invention, technical solution and beneficial effect further in detail
Describe in detail it is bright, it should be understood that the foregoing is merely the present invention specific embodiment, be not intended to limit the invention, it is all
Within the spirit and principles in the present invention, any modification, equivalent substitution, improvement and etc. done, should be included in the guarantor of the present invention
Within the scope of shield.
Claims (10)
- A kind of 1. method for testing trough type solar heat-collector optical efficiency, it is characterised in that this method utilizes a workbench Optical efficiency test is carried out to trough type solar heat-collector, the workbench includes：Dual-axis rotation tracks sun subsystem (90) and working media circuit subsystem, trough type solar heat-collector (10) to be detected include parabolic concentration speculum (11) sum aggregate Heat pipe (12),This method includes：Step A：Trough type solar heat-collector to be detected (10) is installed in dual-axis rotation tracking sun subsystem (90)；Step B：Working media circuit subsystem passes through working medium pipeline and the collection of trough type solar heat-collector to be detected (10) Heat pipe (12) is connected, composition test loop working medium circuit；Step C：The dual-axis rotation tracking sun subsystem (90) adjusts the inclination angle of trough type solar heat-collector (10) to be detected And azimuth, realize the two-dimensional tracking to the sun；Step G：Treat detection trough type solar heat-collector (10) and carry out optical efficiency test.
- 2. according to the method described in claim 1, it is characterized in that,The dual-axis rotation tracking sun subsystem (90) includes：Bottom platform (96), it can be rotated horizontally, so that band Dynamic trough type solar heat-collector (10) rotation to be detected,The workbench further includes：Data collection and analysis and control system, it includes：Installed in the center of bottom platform (96) The rotating driving device and first angle sensor of lower section, solar energy irradiation intensity and angle detection module (60), wherein, first Angular transducer is used for the true bearing angle for detecting trough type solar heat-collector to be detected (10), solar energy irradiation intensity and angle Detection module (60) monitoring solar energy azimuth；Further included before the step G：Step D：Above-mentioned solar energy azimuth, the true bearing angle of trough type solar heat-collector to be detected (10) are received, utilizes two Person calculates true bearing angle and the azimuthal difference D2 of solar energy, is sent according to D2 to the rotating driving device of bottom platform (96) Drive signal, makes rotating driving device drive bottom platform (96) to drive trough type solar heat-collector (10) rotation to be detected, makes The azimuth for obtaining trough type solar heat-collector (10) to be detected is equal with the azimuth of solar energy.
- 3. according to the method described in claim 2, it is characterized in that,The dual-axis rotation tracking sun subsystem (90) further includes Plane Rotation slide (97), it is located at dual-axis rotation tracking too The bottom of positive subsystem (90), has annular groove, is at an upper portion thereof bottom platform (96), the lower section of bottom platform (96) is equipped with Carriage, carriage are slid back and forth and are realized bottom platform by the annular groove of inlay card to Plane Rotation slide (97) (96) Plane Rotation, and then realize and treat detection trough type solar heat-collector (10) azimuthal adjusting；Step D further comprises：Sub-step D1：Receive above-mentioned solar energy azimuth and the true bearing angle of trough type solar heat-collector to be detected (10)；Sub-step D2：Utilize both above-mentioned calculating true bearing angles and the azimuthal difference D2 of solar energy；Sub-step D3：Drive signal is sent to the rotating driving device of bottom platform (96) according to difference D2, makes it drive bottom Platform (96) is rotated along Plane Rotation slide (97), and drives trough type solar heat-collector to be detected (10) to rotate so as to be checked It is equal with the azimuth of solar energy to survey the azimuth of trough type solar heat-collector (10), thus eliminates remaining caused by solar incident angle String loses the influence to solar energy heating amount.
- 4. according to the method described in claim 3, it is characterized in that,The dual-axis rotation tracking sun subsystem (90) further includes：Rotating shaft support bar (91), it is rotary structure, passes through rotation Walk around axis supporting rod (91), realize the adjusting for treating detection trough type solar heat-collector (10) inclination angle；Data collection and analysis and control system further include：The driving mechanism that is rotated in deceleration (95), it is located at the second supporting rack (92 ') On, drive shaft supporting rod (91) rotation, and the second angle sensor installed in rotating shaft support bar (91)；Solar energy irradiation intensity and angle detection module (60) monitoring solar energy elevation angle, second angle sensor are treated for detection Detect the actual inclination angle of trough type solar heat-collector (10)；This method after the step D, before or while further include：Step E：Above-mentioned solar energy elevation angle, the actual inclination angle of trough type solar heat-collector to be detected (10) are received, and further Adjust trough type solar heat-collector to be detected (10) so that solar energy incident light focuses on back reflection through parabolic concentration speculum (11) To thermal-collecting tube (12).
- 5. according to the method described in claim 4, it is characterized in that, step E further comprises：Sub-step E1：Receive the actual inclination angle of above-mentioned solar energy elevation angle and trough type solar heat-collector to be detected (10)；Sub-step E2：Utilize the two actual inclination angle of calculating and the difference D1 of solar energy elevation angle；Sub-step E3：The driving mechanism that is rotated in deceleration (95) is rotated according to drive signal drive shaft supporting rod (91), rotating shaft support Bar (91) drives trough type solar heat-collector (10) rotation to be detected, realizes the adjustment at its inclination angle so that solar energy incident light passes through Parabolic concentration speculum (11) focuses on back reflection to thermal-collecting tube (12).
- 6. according to the method described in claim 5, it is characterized in that,The workbench further includes refrigeration system, and refrigeration system includes refrigeration machine (40), working media circuit subsystem Further include working media cooler (20) and working medium pump (30), the port of export of thermal-collecting tube (12) successively with working media cooler (20) connected with working medium pump (30), the port of export of working medium pump (30) is connected with the arrival end of thermal-collecting tube (12), refrigeration machine (40) and Working media cooler (20) composition circularly cooling circuit；The data collection and analysis and control system further include：Sensor group (80), it includes：Multiple temperature signal collection elements with And flow signal acquisition element (84), sensor group (80) gather trough type solar heat-collector (10) entrance end to be detected and work Make the temperature information of medium cooler (20) port of export, and the flow letter of trough type solar heat-collector to be detected (10) input end Breath；This method further includes before, after or at the same time in step E：Step F：Receive above-mentioned temperature information and flow information, the flow velocity of refrigerating capacity, working medium pump (30) to refrigeration machine (40) into Row control, the working media mean temperature for flowing through trough type solar heat-collector to be detected (10) is equal to environment temperature, to evade Thermal-collecting tube (12) externally influence of the radiation loss to solar energy heating process.
- 7. according to the method described in claim 6, it is characterized in that,Sensor group (80) includes：First temperature signal collection element (81), second temperature signal collecting element (82), the 3rd temperature Spend signal collecting element (83), flow signal acquisition element (84)；First temperature signal collection element (81) be installed on trough type solar heat-collector to be detected (10) thermal-collecting tube (12) into Mouth end, second temperature signal collecting element (82) are installed on going out for thermal-collecting tube (12) of trough type solar heat-collector to be detected (10) Mouth end, the 3rd temperature signal collection element (83) are installed on the port of export of working media cooler (20), flow signal acquisition member Part (84) is installed on the input end of the thermal-collecting tube (12) of trough type solar heat-collector to be detected (10)；Step F further comprises：Sub-step F1：Receive the first temperature signal collection element (81), second temperature signal collecting element (82), the 3rd temperature letter Number temperature information of acquisition elements (83) and the flow information of flow signal acquisition element (84)；Sub-step F2：The flow velocity of refrigerating capacity, working medium pump (30) to refrigeration machine (40) is controlled；To flowing through slot type to be detected too The working media temperature of positive energy heat collector (10) is adjusted, and the work for flowing through trough type solar heat-collector to be detected (10) is situated between Matter mean temperature is equal to environment temperature, to evade influence of the external radiation loss of thermal-collecting tube (12) to solar energy heating process,Above-mentioned working media mean temperature refers to, respectively by the first temperature signal collection element (81) and second temperature signal acquisition Element (82) collection, trough type solar heat-collector (10) input end working media temperature T1 and port of export working media to be detected The average value of temperature T2.
- 8. the method according to the description of claim 7 is characterized in thatSub-step F2 is specifically included：When the working media mean temperature for flowing through trough type solar heat-collector to be detected (10) is higher than environment temperature, refrigeration is increased The refrigerating capacity of machine (40), and/or accelerate the flow velocity of working medium pump (30), to flow through trough type solar heat-collector to be detected (10) The mean temperature of working media is equal to environment temperature；When the working media mean temperature for flowing through trough type solar heat-collector to be detected (10) is less than environment temperature, reduce refrigeration The refrigerating capacity of machine (40), and/or the flow velocity of working medium pump (30) is reduced, to flow through trough type solar heat-collector to be detected (10) Working media mean temperature is equal to environment temperature.
- 9. according to the method described in claim 8, it is characterized in that,The dual-axis rotation tracking sun subsystem (90) further includes：First supporting rack (92), the second supporting rack (92 '), thermal-arrest Pipe holder (93) and mirror support frame (94),First supporting rack (92) and the second supporting rack (92 ') are located at the two sides midpoint of bottom platform (96) respectively, it is high Degree is adjustable；The both ends of the rotating shaft support bar (91) are located on the first supporting rack (92) and the second supporting rack (92 '), the shaft branch Strut (91) is uniformly arranged has vertical collector tube holder (93) more, the height-adjustable of collector tube holder (93), and therein two Tool collector tube holder (93) is located at the both ends of rotating shaft support bar (91), and thermal-collecting tube (12) is installed in collector tube holder (93), is turned The both sides of axis supporting rod (91) are the mirror support frame (94) of reconfigurable section, and mirror support frame (94) is supporting and fix throwing Thing condenser mirror (11)；Step A further comprises：Sub-step A1：The height for adjusting the first supporting rack (92) and the second supporting rack (92 ') adapts it to the slot type sun to be detected The physical dimension of energy heat collector (10)；Sub-step A2：The shape of adjustment mirror support frame (94) adapts it to the geometry of trough type solar heat-collector to be detected (10) Size；Sub-step A3：The height of adjustment collector tube holder (93) makes solar focusing light be projected on thermal-collecting tube (12).
- 10. the method according to any claim in claim 1 to 9, it is characterised in thatSolar energy irradiation intensity and angle detection module (60) measure solar radiation illumination in real time,Step G further comprises：Sub-step G1：Calculating be projected to trough type solar heat-collector to be detected (10) solar thermal energy and working media to be detected Heat-collecting capacity in trough type solar heat-collector (10)；Sub-step G2：By embedded mathematical model, groove type solar is further calculated based on thermal balance relevant rudimentary theory The optical efficiency of heat collector.
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| CN106769137B (en) * | 2016-12-09 | 2019-09-20 | 中国科学院电工研究所 | Paraboloid trough type solar heat-collector heat performance measuring apparatus and hot property prediction technique |
| CN106769136B (en) * | 2016-12-09 | 2019-04-30 | 中国科学院电工研究所 | Paraboloid trough type solar heat-collector thermal efficiency dynamic measurement device and measurement method |
| CN109237810B (en) * | 2017-05-26 | 2024-01-26 | 天津滨海光热技术研究院有限公司 | Trough type fused salt photo-thermal power generation heat collector and control method thereof |
| CN107166762A (en) * | 2017-06-12 | 2017-09-15 | 天津滨海光热跟踪技术有限公司 | A kind of big opening speculum collection hot loop |
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