CN108982073A - The horizontal tracking testing system of hot property for complete glass vacuum sun thermal-collecting tube - Google Patents
The horizontal tracking testing system of hot property for complete glass vacuum sun thermal-collecting tube Download PDFInfo
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- CN108982073A CN108982073A CN201811125217.XA CN201811125217A CN108982073A CN 108982073 A CN108982073 A CN 108982073A CN 201811125217 A CN201811125217 A CN 201811125217A CN 108982073 A CN108982073 A CN 108982073A
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- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
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Abstract
The invention discloses a kind of horizontal tracking testing systems of the hot property for complete glass vacuum sun thermal-collecting tube.It includes control device, driving device, rotation carrying apparatus and pedestal that this, which automatically tracks test macro, rotates and is respectively arranged with trigger device, direction indicating device on carrying apparatus, the first limiting device and the second limiting device are respectively arranged on pedestal.This horizontal tracking testing system can not only control complete glass vacuum sun thermal-collecting tube completion level to be tested since preset time and automatically track the sun by the cooperation between each component；It can also realize and automatic calculating and processing are carried out to measurement data each in complete glass vacuum sun thermal-collecting tube thermal performance test to be tested, to obtain the Thermal Parameter of complete glass vacuum sun thermal-collecting tube to be tested.Therefore, the consistency that test macro ensure that the measurement data of acquisition process is originally automatically tracked.
Description
Technical field
The present invention relates to a kind of (the following letters of horizontal tracking testing system of the hot property for complete glass vacuum sun thermal-collecting tube
Claim horizontal tracking testing system), belong to thermal performance test technical field.
Background technique
Complete glass vacuum sun thermal-collecting tube is the important heat-collecting part of solar thermal utilization, is with a wide range of applications.
Hot property is to assess the core index of complete glass vacuum sun thermal-collecting tube quality good or not, and accurate hot property of testing is to all-glass vacuum
Solar collector pipe products application and improvement have significant impact.For example, " medium temperature (100 DEG C~150 DEG C) is complete by GB/T33297-2016
Glass vacuum solar collector tubes ", outdoor Testing index includes sky in GB/T17049-2005 " complete glass vacuum sun thermal-collecting tube "
It shines and Nausea drying performance.
A kind of all-glass vacuum solar collection is disclosed in the Chinese utility model patent of Patent No. 201220501134.8
Heat pipe thermal performance test device.The test device includes laying diffusing reflection plate, all-glass vacuum to be measured on thermal-collecting tube support frame
Solar collector pipe is placed on the support frame, and temperature element in thermal-collecting tube is equipped in the middle part of thermal-collecting tube inner tube, and thermal-collecting tube opening is equipped with
Hot top, the aperture that the conducting wire of temperature element passes through hot top in thermal-collecting tube are connect with data collecting instrument.Also, the test device
Stagnation parameter, Nausea drying solar irradiation can be calculated automatically, have low cost, high-precision, high efficiency, height intelligent, easy to operate
The advantages that.
But above-mentioned test device is fixed, it is difficult to solve the problems, such as incidence angular variable caused by sun relative movement
And sensor plane radiation and hemisphere face sun normal direction radiate inconsistence problems, and test data discreteness is larger, data
The property of can refer to is poor, therefore test device needs to improve.
Summary of the invention
Technical problem to be solved by the present invention lies in provide a kind of hot property for complete glass vacuum sun thermal-collecting tube
Horizontal tracking testing system.
To achieve the goals above, the present invention adopts the following technical solutions:
A kind of horizontal tracking testing system of hot property for complete glass vacuum sun thermal-collecting tube, including control device, drive
Dynamic device rotates carrying apparatus and pedestal, is respectively arranged with trigger device, direction indicating device on the rotation carrying apparatus,
The first limiting device and the second limiting device are respectively arranged on the pedestal；The control device is filled with the driving respectively
Set, trigger device connection, the driving device connect with the rotation carrying apparatus, the trigger device respectively with it is described
First limiting device, second limiting device connection；
The control transposition is used to determine the umber of pulse of the rotation carrying apparatus according to time shift and position of sun relationship
And pulse direction, it is overlapped with driving the rotation carrying apparatus to turn to direction indicating device with sun projection, so as to be measured
Examination all-glass vacuum solar heat collector is automatically aligned to and the horizontal tracking sun.
Wherein more preferably, the horizontal tracking testing system further includes signal processing apparatus and measuring device, the signal
Processing unit is connect with the control device, the measuring device respectively；
The control device receives the measurement data of the measuring device detection of the signal processing apparatus acquisition, and root
The Thermal Parameter of the all-glass vacuum solar heat collector to be tested is obtained according to following formula,
Y=(Ts-Ta)*G
Wherein, Y indicates the stagnation parameter of the all-glass vacuum solar heat collector to be tested, TsIndicate the test phase
Between the all-glass vacuum solar heat collector to be tested in temperature, TaIndicate corresponding environment temperature, G expression is corresponding too
Positive irradiation intensity；During H indicates that the Nausea drying performance parameter of the all-glass vacuum solar heat collector to be tested, τ 1 indicate test
The all-glass vacuum solar heat collector to be tested in temperature at the time of rise to corresponding to the first preset temperature, τ 2 is indicated
When temperature rises to corresponding to the second preset temperature in the all-glass vacuum solar heat collector to be tested during test
It carves, Δ τ indicates the time interval of acquisition data, and G (τ) indicates corresponding solar irradiation intensity of each record moment.
Wherein more preferably, when the control device, which drives the rotation carrying apparatus to complete preset time, to be automatically aligned to,
The corresponding umber of pulse of the rotation carrying apparatus is obtained according to the following formula,
N=ω ÷ (i1×i2×360°)
N=n × f
Wherein, n indicates the turnning circle of the rotation carrying apparatus, and ω indicates the corner of the rotation carrying apparatus, institute
It states corresponding to the reference signal that corner provides for solar azimuth corresponding to preset time and first limiting device too
The difference at positive azimuth, i1Indicate speed reducer reduction ratio, i2Indicate slewing equipment reduction ratio, N indicates the number of the rotation carrying apparatus
Word pulse number, f indicate the pulse frequency of the preset rotation carrying apparatus rotation；
Also, using solar azimuth zero point as Due South to, on the basis of the direction of due south, rotation loading when inclined eastwards
Corner needed for device is negative value, and corner ω needed for the rotation carrying apparatus is positive value when inclined westwards.
Wherein more preferably, when the control device drives the rotation carrying apparatus to complete the automatic water since preset time
It is using cycle period as time interval, sometime corresponding solar azimuth and cycle period institute is right when the flat tracking sun
The solar azimuth answered makes the difference, corner needed for obtaining the rotation carrying apparatus, and brings above-mentioned formula into, obtains the rotation
The corresponding umber of pulse of carrying apparatus.
Wherein more preferably, the all-glass vacuum solar heat collector to be tested includes collector tube holder and preset quantity
Complete glass vacuum sun thermal-collecting tube to be tested is fixed with lighting surface, the all-glass vacuum to be tested in the collector tube holder
Solar collector pipe is arranged on the lighting surface；
When sunlight projects pipe coating in the all-glass vacuum solar heat collector to be tested, interior pipe surface light area
It will immobilize, and light area normal direction is consistent with lighting surface normal direction.
Wherein more preferably, the measuring device includes radiometer, airspeedometer, temperature element and environment temperature are surveyed in thermal-collecting tube
Measure element, the radiometer, the airspeedometer, in the thermal-collecting tube temperature element and the ambient temperature measurement element respectively with
The input terminal of the signal processing apparatus connects, and the output end of the signal processing apparatus is connect with the control device.
Wherein more preferably, the rotation carrying apparatus includes objective table and slewing equipment, and the slewing equipment is socketed in institute
It states on pedestal, and is connect by the flange with the objective table.
Wherein more preferably, the direction indicating device includes direction instruction graticule and indicating arm, the direction instruction graticule
It is arranged on the objective table, and the direction instruction graticule is through the objective table both ends and the objective table centre bit
The connecting line set；The all-glass vacuum solar to be tested is avoided in the indicating arm setting on the direction instruction graticule
The position of heat collector is simultaneously vertical with the direction instruction graticule.
Wherein more preferably, the lighting surface of the all-glass vacuum solar heat collector to be tested is perpendicular to the direction instruction
The plane that graticule and the indicating arm are enclosed.
Wherein more preferably, first limiting device uses the first limit switch, and second limiting device uses second
Limit switch, the trigger device use limit switch actuators；First limit switch for provide reference signal point and
Corner overload signal counterclockwise, so that the control device obtains the zero-bit travel point of the horizontal tracking testing system, and
Prevent counter clockwise direction corner excessive；Second limit switch is for providing corner overload signal clockwise, so that described
Control device controls the driving device and stops working when reaching corner overload position clockwise.
Horizontal tracking testing system provided by the present invention, can be since preset time by the cooperation between each component
It controls complete glass vacuum sun thermal-collecting tube completion to be tested and automatically tracks the sun；It can also realize to all-glass vacuum to be tested too
Each measurement data carries out automatic calculating and processing in positive thermal-collecting tube thermal performance test, to obtain all-glass vacuum solar to be tested
The Thermal Parameter of thermal-collecting tube.Therefore, this horizontal tracking testing system ensure that the consistency of the measurement data of acquisition process, solution
Test data discreteness present in existing fixed complete glass vacuum sun thermal-collecting tube thermal performance test system of having determined is larger
The problem of.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of horizontal tracking testing system provided by the present invention；,
Fig. 2 is horizontal tracking testing system provided by the present invention for testing all-glass vacuum solar collection hot charging to be tested
The use state diagram set；
Fig. 3 is a kind of structural schematic diagram for testing all-glass vacuum solar heat collector to be tested；
Fig. 4 is the partial enlargement diagram A of horizontal tracking testing system provided by the present invention.
Specific embodiment
Technology contents of the invention are described in further detail in the following with reference to the drawings and specific embodiments.
As depicted in figs. 1 and 2, horizontal tracking testing system provided by the present invention include control device 1, driving device 2,
Carrying apparatus 3, signal processing apparatus 4, measuring device 13 and pedestal 5 are rotated, rotation carrying apparatus 3 is socketed on pedestal 5, is revolving
Turn to be respectively arranged with trigger device 6, direction indicating device (not shown) on carrying apparatus 3, be respectively arranged on pedestal 5
First limiting device 7 and the second limiting device 8；Wherein, control device 1 respectively with driving device 2, signal processing apparatus 4 and touching
Transmitting apparatus 6 connects, and driving device 2 is connect with rotation carrying apparatus 3, and signal processing apparatus 4 is connect with measuring device 13, triggering dress
6 are set to connect with the first limiting device 7, the second limiting device 8 respectively.Rotation carrying apparatus 3 is true for placing full glass to be tested
Empty solar collector 9, and all-glass vacuum solar heat collector 9 to be tested is driven to rotate；It is controlled by control device 1
The driving rotation carrying apparatus 3 of driving device 2 rotates, so that this horizontal tracking testing system is true to full glass to be tested in completion
Horizontal the sun can be tracked when the thermal performance test of empty solar collector 9, ensure that the consistent of the measurement data of acquisition process
Property, to solve test present in the thermal performance test system for being currently used for fixed complete glass vacuum sun thermal-collecting tube
The larger problem of data discrete.
Wherein, this horizontal tracking testing system completes the hot property to all-glass vacuum solar heat collector 9 to be tested
During horizontal capable of tracking the sun when test, the plane of this horizontal tracking testing system is horizontal plane, rotary track
In horizontal plane.
As shown in figure 4, driving device 2 includes servo-driver 201, servo motor 202 and speed reducer 203, servo-drive
Device is connect with control device 1, servo motor 202 respectively, and the output shaft of servo motor 202 passes through speed reducer 203 and rotation loading
Device 3 connects；The digital pulse signal exported by 201 receiving control device 1 of servo-driver, to control servo motor 202
Refer to fixing turn and specified angle according to the rotation of specified direction of rotation, so that rotation carrying apparatus 3 be driven to turn to direction instruction dress
It sets and is overlapped with sun projection.Specifically, digit pulse can be exported using pulse board (the pulse board of such as model MP412)
Signal is to servo-driver 201；Wherein, digital pulse signal includes umber of pulse, pulse direction (rotation direction) etc..Therefore, lead to
Cross control device 1 can it is uninterrupted calculate this horizontal tracking testing system zero-bit travel point and sun level orientation it
Between angle, to realize that exporting the corresponding digital pulse signal control driving rotation carrying apparatus 3 of servo motor 202 rotates, from
And guarantees the direction indicating device on rotation carrying apparatus 3 and be overlapped always with sun projection.Wherein, speed reducer 203 is for more preferable
Driving servo motor 202 drive rotation carrying apparatus 3 rotate.
As shown in figure 4, rotation carrying apparatus 3 includes objective table 301 and revolution module 302, revolution module 302 is socketed in base
On seat 5, and it is connect by flange 303 with objective table 301；Direction indicating device (not shown) is provided on objective table 301,
Direction indicating device includes direction instruction graticule and indicating arm, and direction instruction graticule is arranged on objective table 301, and direction refers to
Indicating line is a connecting line through 301 both ends of objective table and its center；Indicating arm is arranged on direction instruction graticule
Avoid the position of all-glass vacuum solar heat collector 9 to be tested and vertical with direction instruction graticule；Indicating arm can be using thin
Long straight-bar；Revolution module 302 can be driven to rotate together according to specified direction of rotation with objective table 301 by servo motor 202
Refer to fixing turn and specified angle, so that the projection of the indicating arm on objective table 301 is overlapped with direction instruction graticule always, i.e.,
Guarantee that the projection of the sun is overlapped with direction instruction graticule always.
As shown in Figure 1, objective table 301 includes the peripheral region steel plate 3011 of structural framing 3010 and preset quantity, centre
Region steel plate 3012 and central area steel plate 3013；Wherein, peripheral region steel plate 3011 and structural framing 3010 are solid using riveting
It is fixed, keep structure constant；Intermediate region steel plate 3012 is fixed with peripheral region steel plate 3011 using screw bolt, central area steel
Plate 3013 and intermediate region steel plate 3012 are fixed using screw bolt, thus guarantee the peripheral region steel plate 3011 of objective table 301,
Intermediate region steel plate 3012 and central area steel plate 3013 are detachable structure, in order to install and overhaul.Structural framing 3010
Stainless steel frame concrete core tube structure welding fabrication can be used；Peripheral region steel plate 3011, intermediate region steel plate 3012 and central area steel
Plate 3013 can be made of figured stainless steel steel plate.Also, the quantity of peripheral region steel plate 3011 according to structural framing 3010 and
It is fixed, i.e., after multiple peripheral region steel plates 3011 are stitched together, it can be stitched and fastened with structural framing 3010；Intermediate region steel
The quantity of plate 3012 is depending on peripheral region steel plate 3011, i.e., after multiple intermediate region steel plates 3012 are stitched together, Ke Yiyu
Peripheral region steel plate 3011 stitches and fastens；The quantity of central area steel plate 3013 is depending on intermediate region steel plate 3012, generally
The quantity of central area steel plate 3013 is 1, i.e. a central area steel plate 3013 can exist with 3012 split of intermediate region steel plate
Together.
As shown in figure 4, the first limiting device 7 can use the first limit switch, the second limiting device 8 can use second
Limit switch；Trigger device 6 can use limit switch actuators；First limit switch crosses information carrying for providing corner counterclockwise
Number and reference signal point, can not only prevent counter clockwise direction corner overload, also by limit switch actuators triggering first limit
Bit switch, so that zero-bit travel point (the pre-set zero-bit row of 1 available horizontal tracking testing system of control device
Journey reference point), consequently facilitating control device 1 calculates zero-bit travel point (pre-set zero for originally automatically tracking test macro
Position stroke reference point), i.e. corresponding level orientation pointed by the corresponding direction instruction graticule in the first limiting device trigger point with too
Angle between positive level orientation, and according to the zero-bit travel point of calculated horizontal tracking testing system, i.e., the first limit
Angle output pointed by the corresponding direction instruction graticule in device trigger point between corresponding level orientation and sun level orientation
Corresponding digital pulse signal turns to direction indicating device with driving rotation carrying apparatus 3 and the sun projects to driving device 2
It is overlapped.Second limit switch prevents revolution 302 corner of module excessive, and pass through limit for providing corner overload signal clockwise
Bit switch trigger triggers the second limit switch, so that control device 1 gives a warning instruction, to control the stopping of servo motor 202
Rotation, the operating of system automatic reverse are awaited orders, are pulled off so as to avoid electric wiring pitch of the laps.Originally automatically tracking test macro makes
Pedestal 5 can be horizontally fixed on mattess by the used time；Specifically, concrete embedded flange can be used, and use spiral shell
Mother fastens pre-buried flange and pedestal 5, so that pedestal 5 is horizontally fixed on mattess.
As shown in figure 3, in one embodiment of the invention, all-glass vacuum solar heat collector 9 to be tested can wrap
The complete glass vacuum sun thermal-collecting tube to be tested 902 of collector tube holder 901 Yu preset quantity is included, is fixed in collector tube holder 901
There is lighting surface 903, complete glass vacuum sun thermal-collecting tube 902 to be tested is arranged on lighting surface 903.Each full glass to be tested is true
The open end of empty solar collector pipe 902 is provided with hot top (not shown), and hot top is by stainless steel casing and internal filling
Alumina silicate insulating layer composition, heatproof is up to 1200 DEG C, can prevent insulating layer in air drying test by all-glass vacuum to be tested
902 inner tube high temperature air ablation of solar collector pipe, influences heat insulation effect.Alumina silicate insulating layer internal openings, opening diameter with to
The outer diameter for testing complete glass vacuum sun thermal-collecting tube 902 is identical, since the elasticity of aluminosilicate material is in close contact the two, reduces
902 heat loss of complete glass vacuum sun thermal-collecting tube to be tested.
Measuring device 13 includes thermometric in radiometer 10 (as shown in figures 2 and 3), airspeedometer (not shown), thermal-collecting tube
Element (not shown) and ambient temperature measurement element (not shown)；Wherein, radiometer 10, airspeedometer, in thermal-collecting tube
Temperature element and ambient temperature measurement element are connect by conducting wire with the input terminal of signal processing apparatus 4, the output of processing unit 4
End is connect by data line with control device 1；In measurement plane 11, measurement plane 11 is arranged for radiometer 10, airspeedometer setting
On lighting surface 903；In order to which by radiometer 10, preferably the radiation intensity of the detection sun and airspeedometer preferably monitor wind
Speed, so that measurement data is more accurate, preferably radiometer 10, airspeedometer and measurement plane 11 are parallel with lighting surface 903.Wind speed
Meter is realized for monitoring wind speed and evaluates the validity that complete glass vacuum sun thermal-collecting tube 902 to be tested is tested.When full glass to be tested
When mean wind speed is greater than 4m/s during glass vacuum solar collector tubes 902 are tested, test result is invalid.
Temperature element is arranged in the middle part of the inner tube of each complete glass vacuum sun thermal-collecting tube to be tested 902 and not in thermal-collecting tube
It is contacted with tube wall, and the aperture on the hot top of complete glass vacuum sun thermal-collecting tube 902 to be tested passes through conducting wire and signal
The input terminal of processing unit 4 connects, and ambient temperature measurement element can be set in thermometer screen, and ambient temperature measurement element passes through
Conducting wire is connect with the input terminal of signal processing apparatus 4；Thermometer screen is existing structure, and details are not described herein.
Signal processing apparatus 4 can pass through signal processor using the signal processor with data acquisition process function
It can be with the measurement of acquisition process temperature element, airspeedometer and ambient temperature measurement element testing in radiometer 10, thermal-collecting tube
The measurement data of acquisition is converted into the manageable digital signal of control device, and the digital data transmission is given by data
Control device 1.
Control device 1 is used to calculate this level according to the preset time and position (geographic orientation latitude, longitude) information of acquisition
Zero-bit travel point (the corresponding level pointed by the corresponding direction instruction graticule in the first limiting device trigger point of tracking testing system
Orientation) and angle of the sun between the level orientation of preset time point, and according to calculated horizontal tracking testing system
Zero-bit travel point direction instruction graticule pointed by corresponding level orientation and the sun preset time point level orientation angle,
The control driving rotation carrying apparatus 2 of driving device 1 turns to after the projection of direction indicating device and the sun is overlapped, completes to be aligned and move
Make；Thereafter, control device 1 controls the driving rotation carrying apparatus 2 of driving device 1 and continues according to time shift and position of sun relationship level
Automatically track the survey that the sun obtains and calculates the complete glass vacuum sun thermal-collecting tube to be tested 902 acquired by signal processing apparatus 4
Data are measured, to obtain the Thermal Parameter of all-glass vacuum solar heat collector 9 to be tested.
Therefore, control device 1 can use computer, can be waited on computers based on Labvi ew control software programming
902 thermal performance test processing software of complete glass vacuum sun thermal-collecting tube is tested, the driving rotation of driving device 2 is not only can control and carries
Object device 3 rotates, so that all-glass vacuum to be tested can be controlled too since preset time by originally automatically tracking test macro
The positive completion of thermal-collecting tube 902 automatically tracks the sun；It can also realize and 902 hot property of complete glass vacuum sun thermal-collecting tube to be tested is surveyed
The automatic calculating and processing of each measurement data, that is, be automatically stored for calculating complete glass vacuum sun thermal-collecting tube to be tested in examination
All kinds of parameters of 902 hot property, the Thermal Parameter can be presented in table form, for example, in the form of Microsoft Excel
It presents.
Specifically, Thermal Parameter refer to complete glass vacuum sun thermal-collecting tube 902 to be tested stagnation parameter and
Nausea drying performance parameter；Measurement data needed for calculating the Thermal Parameter of complete glass vacuum sun thermal-collecting tube 902 to be tested includes
In complete glass vacuum sun thermal-collecting tube to be tested 902 during test when temperature, solar irradiation intensity and environment temperature, test
Between, wind speed.Wherein, when complete glass vacuum sun thermal-collecting tube to be tested carries out stagnation parameter test, full glass to be tested
During temperature refers to test in vacuum solar collector tubes 902, solar irradiance is not less than 0.7kW/m2, 15 DEG C of environment temperature~
32 DEG C, when wind speed is not more than 4m/s, when medium is air in complete glass vacuum sun thermal-collecting tube 902 to be tested it is attainable most
High-temperature.And the stagnation parameter of complete glass vacuum sun thermal-collecting tube 902 to be tested is obtained according to the following formula,
Y=(Ts-Ta)*G (1)
Wherein, Y indicates the stagnation parameter of complete glass vacuum sun thermal-collecting tube 902 to be tested, TsDuring indicating test
Complete glass vacuum sun thermal-collecting tube to be tested 902 in temperature, TaIndicate corresponding environment temperature, G indicates corresponding sun spoke
According to intensity.
When complete glass vacuum sun thermal-collecting tube to be tested carries out Nausea drying performance parameter (Nausea drying solar irradiation) test, root
It is obtained according to following formula,
Wherein, τ 1 indicates that it is pre- to rise to first for temperature in the complete glass vacuum sun thermal-collecting tube to be tested 902 during test
If at the time of corresponding to temperature (such as 50 DEG C), τ 2 indicates temperature in the complete glass vacuum sun thermal-collecting tube to be tested 902 during test
At the time of degree is risen to corresponding to the second preset temperature (such as 85 DEG C), Δ τ indicates the time interval of acquisition data, and G (τ) indicates every
A record moment corresponding solar irradiation intensity.
It is emphasized that in addition to control device 1 can be used according to the zero of calculated horizontal tracking testing system
Position travel point, i.e. corresponding level orientation and the sun pointed by the corresponding direction instruction graticule in the first limiting device trigger point are horizontal
Angle between orientation, the control driving rotation carrying apparatus 2 of driving device 1 turn to direction indicating device and sun projection weight
It closes；Can also adopt manually realize control driving device 1 driving rotation carrying apparatus 2 turn to direction indicating device with
Sun projection is overlapped；Specifically, can be set respectively in test macro according to rotation 2 rotation direction of carrying apparatus originally automatically tracking
Set to manually adjust clockwise and button and manually adjust button counterclockwise, according to the zero-bit travel point for originally automatically tracking test macro and
Angle between sun projection, pins and manually adjusts button clockwise or manually adjust button counterclockwise, until control rotation carries
When object device 2 turns to the projection of direction indicating device and the sun and is overlapped, unclamps and manually adjusts button or manual counterclockwise clockwise
Regulation button；Then, the driving rotation carrying apparatus 2 of driving device 1 is controlled by the test processes software control in control device 1
The continuation level tracking sun is obtained and is calculated by signal processing apparatus 4 since predetermined time is according to time shift and position of sun relationship
The measurement data of the complete glass vacuum sun thermal-collecting tube to be tested 902 of acquisition, to obtain all-glass vacuum solar collection to be tested
The Thermal Parameter of thermal 9.
In order to enable complete glass vacuum sun thermal-collecting tube 902 to be tested sufficiently to receive the irradiation of the sun, preferably lighting surface 903
The plane enclosed perpendicular to the direction instruction graticule and indicating arm of direction indicating device.
For the ease of the understanding to this horizontal tracking testing system working principle, it is assumed that need from the time to be XX XX month XX
Day started for the morning XX point XX minutes and XX seconds, and surveyed in the area XX of the city XX of XX province to complete glass vacuum sun thermal-collecting tube 902 to be tested
Examination, respectively obtains the stagnation parameter and Nausea drying performance parameter of complete glass vacuum sun thermal-collecting tube 902 to be tested.
The stagnation parameter acquisition process of complete glass vacuum sun thermal-collecting tube 902 to be tested are as follows: first by collector tube holder
901 are fixed on objective table 301, need to guarantee the lighting surface 903 in collector tube holder 901 perpendicular to the side of direction indicating device
The plane enclosed to instruction graticule and indicating arm；Then by the complete glass vacuum sun thermal-collecting tube to be tested 902 of preset quantity
It is installed on the lighting surface 903 of collector tube holder 901 with hollow forms (not filling water)；If the time being arranged on control device 1
To be accurate, then control device 1 can be with the above-mentioned preset time of automatic identification；Also, longitude and latitude corresponding to the area XX of the city XX of XX province
Degree can be input in control device 1 in test software directly after inquiry obtains in Astronomical Database, since direction instruction fills
It is determining for setting the initial position of direction, and solar azimuth α corresponding to the reference signal of the first limiting device offer is
Given definite value, and solar azimuth angle beta corresponding to preset time (XX XX month XX day morning XX point XX minutes and XX seconds) can root
It is obtained according to existing ground day locus formula；Therefore, test software can make the difference solar azimuth angle beta and solar azimuth α, thus
Corner ω needed for obtaining rotation carrying apparatus 3.Available 202 turnning circle of servo motor according to the following formula.
N=ω ÷ (i1×i2×360°) (3)
Wherein, i1Indicate speed reducer reduction ratio, i2Indicate revolution module reduction ratio.
Since the pulse frequency that driving device 1 drives rotation carrying apparatus 3 to rotate can be redefined for f, i.e. f pulse is driven
Dynamic 1 circle of rotation carrying apparatus 3 rotation.Therefore, the umber of pulse that the driving of driving device 1 rotation carrying apparatus 3 rotates indicates are as follows:
N=n × f (4)
It so, is Due South to rotating carrying apparatus when inclined eastwards on the basis of the direction of due south using solar azimuth zero point
Corner ω needed for 3 is negative value, and corner ω needed for rotating carrying apparatus 3 when inclined westwards is positive value.I.e. when rotation carrying apparatus 3
Required corner ω be positive value when, rotation carrying apparatus 3 rotate pulse direction be positive, then rotate carrying apparatus 3 clockwise to
West rotation；Conversely, the pulse direction that rotation carrying apparatus 3 rotates is negative, then rotates carrying apparatus 3 and rotate eastwards counterclockwise.It needs
It is emphasized that under normal circumstances, the pulse direction that rotation carrying apparatus 3 rotates when the actual tracking sun is positive, and triggers the
When two limiting devices 8, the pulse direction that rotation carrying apparatus 3 rotates is negative automatically.
Therefore, the test software of control device 1 can use pulse board (such as the pulse board of model MP412) by institute
Output is to driving device 1 for the digital pulse signal (umber of pulse and pulse direction that rotation carrying apparatus 3 rotates) of calculating, to control
Driving device 1 processed driving rotation carrying apparatus 2 turns to direction indicating device and is overlapped that (completion preset time is automatic with sun projection
Alignment)；Later, the test processes software of control device 1 continues to control this horizontal tracking testing system from preset time (XX XX
Month XX day mornings XX point XX minutes and XX seconds) start completion and automatically tracks the sun.
Specifically, this horizontal tracking testing system complete to automatically track since preset time the principle of the sun with it is above-mentioned
It is similar to be automatically aligned to principle, it, will be sometime corresponding using cycle period Δ T as time interval according to since preset time
Solar azimuth made the difference with solar azimuth corresponding to cycle period Δ T, obtain rotation carrying apparatus 3 needed for corner
ω.And the umber of pulse and pulse direction that rotation carrying apparatus 3 rotates are obtained according to formula (3) and formula (4), to realize this water
Flat tracking testing system loop cycle driving rotation carrying apparatus 2 turns to direction indicating device and is overlapped (completion with sun projection
It is automatically aligned to).For example, cycle period Δ T is set as 30s, i.e., it is primary to complete solar tracking by this horizontal every 30s of tracking testing system.
In addition, to be tested full glass of the test processes software reception through signal processor acquisition process of control device 1 is true
Each measurement data in empty 902 air drying performance test of solar collector pipe, and formula (1) is to all-glass vacuum solar thermal-arrest to be tested
Each measurement data in 902 air drying performance test of pipe is calculated and is handled according to automatic, to obtain all-glass vacuum to be tested too
The numerical value of the stagnation parameter Y of positive thermal-collecting tube 902 realizes the numerical value for going out stagnation parameter Y in real time, and provides and become at any time
Change curve, tester can identify easily that stagnation parameter Y has reached stable state and decides whether to use according to curve plateau and work as
Preceding value.
Wherein, each measurement data in 902 air drying performance test of complete glass vacuum sun thermal-collecting tube to be tested can pass through
Signal processor is every the primary complete glass vacuum sun thermal-collecting tube 902 to be tested of preset time (such as every 5 seconds) acquisition process
Each measurement data in air drying performance test, until the complete glass vacuum sun thermal-collecting tube to be tested of signal processor acquisition process
When 902 air drying temperature has reached maximum temperature (limiting temperature), acquisition process all-glass vacuum solar to be tested can be stopped
Each measurement data in 902 air drying performance test of thermal-collecting tube.
The Nausea drying performance parameter acquisition process of complete glass vacuum sun thermal-collecting tube 902 to be tested are as follows: by preset quantity to
Test complete glass vacuum sun thermal-collecting tube 902 is separately filled with water (water temperature is lower than environment temperature) and is installed to collector tube holder 901
On lighting surface 903；With the Nausea drying performance parameter acquisition process difference of above-mentioned complete glass vacuum sun thermal-collecting tube 902 to be tested
It is, the test processes software of control device 1 receives the all-glass vacuum solar collection to be tested through signal processor acquisition process
Each measurement data in 902 Nausea drying performance test of heat pipe, and according to formula (2) to complete glass vacuum sun thermal-collecting tube to be tested
Each measurement data in 902 Nausea drying performance tests is calculated automatically and is handled, to obtain all-glass vacuum solar thermal-arrest to be tested
The Nausea drying performance parameter of pipe 902.
Wherein, each measurement data in 902 Nausea drying performance test of complete glass vacuum sun thermal-collecting tube to be tested can pass through
Signal processor is every the primary complete glass vacuum sun thermal-collecting tube 902 to be tested of preset time (such as every 5 seconds) acquisition process
Each measurement data in Nausea drying performance test, until the complete glass vacuum sun thermal-collecting tube to be tested of signal processor acquisition process
When 902 Nausea drying temperature has reached preset temperature (such as 85 DEG C), acquisition process all-glass vacuum solar collection to be tested can be stopped
Each measurement data in 902 Nausea drying performance test of heat pipe.
Since complete glass vacuum sun thermal-collecting tube inner tube is cylinder, solar elevation variation not will cause the variation of light area；
Solar azimuth variation will cause light area circumferentially to change, and light area normal direction is no longer consistent with lighting surface normal direction, adopts at this time
The planar radiation value of smooth surface radiometer acquisition will be inconsistent with the practical daylighting of complete glass vacuum sun thermal-collecting tube, be unable to Efficient Characterization
The practical daylighting of complete glass vacuum sun thermal-collecting tube.Such as using existing fixed detection device, when solar irradiation intensity is M, tiltedly
45 degree when projecting lighting surface, it will be M*sin45 ° that radiometer acquisition solar irradiation intensity, which show, but all-glass vacuum solar collection
The practical solar irradiation intensity that receives of heat pipe may be M；When data processing, test data is necessarily still caused using radiometer data
Discreteness is big, and the property of can refer to is poor.
And this horizontal tracking testing system is used to complete to survey the hot property of all-glass vacuum solar heat collector 9 to be tested
When examination, when sunlight projects pipe coating in complete glass vacuum sun thermal-collecting tube 902 to be tested, interior pipe surface light area will be fixed
Constant, light area normal direction is consistent with lighting surface normal direction, and light is only in 902 axis of complete glass vacuum sun thermal-collecting tube to be tested
Line direction is important (component is determined by solar elevation variation), and orientation does not have component, and (solar azimuth variation has been led to
It crosses tracking to eliminate).At this point, because light area normal direction is consistent with lighting surface normal direction, the acquired sun spoke of lighting surface radiometer
Sunlight, which can be represented, according to intensity projects the practical daylighting of thermal-collecting tube.Therefore, this horizontal tracking testing system is true in the full glass of test
When the hot property of empty solar collector pipe can level automatically track the sun, real-time tracking offsets solar azimuth variation.Therefore it solves
Solar azimuth of having determined variation influences, and ensure that the validity of measurement data, to realize measurement consistency.
It, not only can be in conclusion horizontal tracking testing system provided by the present invention is by the cooperation between each component
Make this horizontal tracking testing system when completing to the thermal performance test of complete glass vacuum sun thermal-collecting tube to be tested, it can be from pre-
If the time, which starts to control complete glass vacuum sun thermal-collecting tube completion to be tested, automatically tracks the sun；It can also realize to be tested complete
Each measurement data carries out automatic calculating and processing in glass vacuum solar collector tubes thermal performance test, to obtain full glass to be tested
The Thermal Parameter of glass vacuum solar collector tubes.Therefore, this horizontal tracking testing system ensure that the measurement data of acquisition process
Consistency, solve test data present in existing fixed complete glass vacuum sun thermal-collecting tube thermal performance test system
The larger problem of discreteness.
Above to the horizontal tracking testing system of the hot property for complete glass vacuum sun thermal-collecting tube provided by the present invention
It is described in detail.It is right under the premise of without departing substantially from true spirit for those of ordinary skill in the art
Any obvious change that it is done will all belong to the protection scope of the invention patent power.
Claims (10)
1. a kind of horizontal tracking testing system of hot property for complete glass vacuum sun thermal-collecting tube, it is characterised in that including control
Device, driving device rotate carrying apparatus and pedestal, are respectively arranged with trigger device on the rotation carrying apparatus, direction refers to
Showing device is respectively arranged with the first limiting device and the second limiting device on the pedestal；The control device respectively with it is described
Driving device, trigger device connection, the driving device are connect with the rotation carrying apparatus, the trigger device difference
It is connect with first limiting device, second limiting device；
The control transposition is used to determine the umber of pulse and arteries and veins of the rotation carrying apparatus according to time shift and position of sun relationship
Direction is rushed, is overlapped with driving the rotation carrying apparatus to turn to direction indicating device with sun projection, so as to be tested complete
Glass vacuum solar heat collector is automatically aligned to and the horizontal tracking sun.
2. it is used for the horizontal tracking testing system of hot property of complete glass vacuum sun thermal-collecting tube as described in claim 1, it is special
Sign is to further include signal processing apparatus and measuring device, the signal processing apparatus respectively with the control device, the survey
Measure device connection；
The control device receives the measurement data of the measuring device detection of the signal processing apparatus acquisition, and according to such as
Lower formula obtains the Thermal Parameter of the all-glass vacuum solar heat collector to be tested,
Y=(Ts-Ta)*G
Wherein, Y indicates the stagnation parameter of the all-glass vacuum solar heat collector to be tested, TsDuring indicating test
Temperature in the all-glass vacuum solar heat collector to be tested, TaIndicate corresponding environment temperature, G indicates corresponding sun spoke
According to intensity；H indicates the Nausea drying performance parameter of the all-glass vacuum solar heat collector to be tested, and τ 1 indicates the institute during test
At the time of stating that temperature is risen to corresponding to the first preset temperature in all-glass vacuum solar heat collector to be tested, τ 2 indicates test
At the time of temperature is risen to corresponding to the second preset temperature in the all-glass vacuum solar heat collector to be tested of period, Δ
τ indicates the time interval of acquisition data, and G (τ) indicates corresponding solar irradiation intensity of each record moment.
3. it is used for the horizontal tracking testing system of hot property of complete glass vacuum sun thermal-collecting tube as described in claim 1, it is special
Sign is:
When the control device, which drives the rotation carrying apparatus to complete preset time, to be automatically aligned to, obtain according to the following formula
The corresponding umber of pulse of the rotation carrying apparatus,
N=ω ÷ (i1×i2×360°)
N=n × f
Wherein, n indicate it is described rotation carrying apparatus turnning circle, ω indicate it is described rotation carrying apparatus corner, described turn
Sun side corresponding to the reference signal that angle provides for solar azimuth corresponding to preset time and first limiting device
The difference of parallactic angle, i1Indicate speed reducer reduction ratio, i2Indicate revolution module reduction ratio, N indicates the digital arteries and veins of the rotation carrying apparatus
Number is rushed, f indicates the pulse frequency of the preset rotation carrying apparatus rotation；
Also, using solar azimuth zero point as Due South to, on the basis of the direction of due south, rotation carrying apparatus when inclined eastwards
Required corner is negative value, and corner ω needed for the rotation carrying apparatus is positive value when inclined westwards.
4. it is used for the horizontal tracking testing system of hot property of complete glass vacuum sun thermal-collecting tube as claimed in claim 3, it is special
Sign is:
When the control device drives the rotation carrying apparatus to complete the automatic horizontal tracking sun since preset time, with
Cycle period is time interval, and solar azimuth corresponding to sometime corresponding solar azimuth and cycle period is done
Difference, corner needed for obtaining the rotation carrying apparatus, and bring above-mentioned formula into, obtain the corresponding arteries and veins of the rotation carrying apparatus
Rush number.
5. it is used for the horizontal tracking testing system of hot property of complete glass vacuum sun thermal-collecting tube as described in claim 1, it is special
Sign is:
The all-glass vacuum solar heat collector to be tested includes that the full glass to be tested of collector tube holder and preset quantity is true
Empty solar collector pipe is fixed with lighting surface, the complete glass vacuum sun thermal-collecting tube setting to be tested in the collector tube holder
On the lighting surface；
When sunlight projects pipe coating in the all-glass vacuum solar heat collector to be tested, interior pipe surface light area will consolidate
It is fixed constant, and light area normal direction is consistent with lighting surface normal direction.
6. it is used for the horizontal tracking testing system of hot property of complete glass vacuum sun thermal-collecting tube as claimed in claim 2, it is special
Sign is:
The measuring device includes radiometer, airspeedometer, temperature element and ambient temperature measurement element in thermal-collecting tube, the radiation
Table, the airspeedometer, in the thermal-collecting tube temperature element and the ambient temperature measurement element respectively with the signal processing device
The input terminal connection set, the output end of the signal processing apparatus are connect with the control device.
7. it is used for the horizontal tracking testing system of hot property of complete glass vacuum sun thermal-collecting tube as described in claim 1, it is special
Sign is:
The rotation carrying apparatus includes objective table and revolution module, and the revolution module is socketed on the pedestal, and is passed through
The flange is connect with the objective table.
8. it is used for the horizontal tracking testing system of hot property of complete glass vacuum sun thermal-collecting tube as claimed in claim 7, it is special
Sign is:
The direction indicating device includes direction instruction graticule and indicating arm, and the direction instruction graticule is arranged in the objective table
On, and the direction instruction graticule is a connecting line through the objective table both ends and the objective table center；
The position that the all-glass vacuum solar heat collector to be tested is avoided on the direction instruction graticule is arranged in the indicating arm
And it is vertical with the direction instruction graticule.
9. it is used for the horizontal tracking testing system of hot property of complete glass vacuum sun thermal-collecting tube as claimed in claim 8, it is special
Sign is:
The lighting surface of the all-glass vacuum solar heat collector to be tested is perpendicular to the direction instruction graticule and the instruction
The plane that bar is enclosed.
10. it is used for the horizontal tracking testing system of hot property of complete glass vacuum sun thermal-collecting tube as described in claim 1, it is special
Sign is:
First limiting device uses the first limit switch, and second limiting device uses the second limit switch, the touching
Transmitting apparatus uses limit switch actuators；First limit switch is used to provide reference signal point and corner counterclockwise crosses information carrying
Number, so that the control device obtains the zero-bit travel point of the horizontal tracking testing system, and prevent from counterclockwise turning
Angle is excessive；Second limit switch is for providing corner overload signal clockwise, so that described in control device control
Driving device stops working when reaching corner overload position clockwise.
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| Application Number | Priority Date | Filing Date | Title |
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| CN102563936A (en) * | 2012-01-16 | 2012-07-11 | 东北大学 | Solar water heater with double-shaft complementary light tracking |
| CN202770620U (en) * | 2012-09-28 | 2013-03-06 | 皇明太阳能股份有限公司 | All-glass vacuum solar thermal-collecting tube performance test device |
| CN105319051A (en) * | 2015-11-24 | 2016-02-10 | 中国科学院工程热物理研究所 | Work platform for testing optical efficiency of groove type solar thermal collector |
| CN108572667A (en) * | 2018-07-19 | 2018-09-25 | 唐小力 | Active sun tracker and its origin reference location method and control method |
| CN208860576U (en) * | 2018-09-26 | 2019-05-14 | 湖北省产品质量监督检验研究院 | The horizontal tracking testing system of hot property for complete glass vacuum sun thermal-collecting tube |
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2018
- 2018-09-26 CN CN201811125217.XA patent/CN108982073A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102563936A (en) * | 2012-01-16 | 2012-07-11 | 东北大学 | Solar water heater with double-shaft complementary light tracking |
| CN202770620U (en) * | 2012-09-28 | 2013-03-06 | 皇明太阳能股份有限公司 | All-glass vacuum solar thermal-collecting tube performance test device |
| CN105319051A (en) * | 2015-11-24 | 2016-02-10 | 中国科学院工程热物理研究所 | Work platform for testing optical efficiency of groove type solar thermal collector |
| CN108572667A (en) * | 2018-07-19 | 2018-09-25 | 唐小力 | Active sun tracker and its origin reference location method and control method |
| CN208860576U (en) * | 2018-09-26 | 2019-05-14 | 湖北省产品质量监督检验研究院 | The horizontal tracking testing system of hot property for complete glass vacuum sun thermal-collecting tube |
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