CN104932556A - Device for tracking sun declination angles by using underground superficial layer soil temperatures and adjusting method - Google Patents
Device for tracking sun declination angles by using underground superficial layer soil temperatures and adjusting method Download PDFInfo
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- CN104932556A CN104932556A CN201510312953.6A CN201510312953A CN104932556A CN 104932556 A CN104932556 A CN 104932556A CN 201510312953 A CN201510312953 A CN 201510312953A CN 104932556 A CN104932556 A CN 104932556A
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Abstract
A device for tracking sun declination angles by using underground superficial layer soil temperatures and an adjusting method aim to use the changing rules of the underground superficial layer soil temperatures for driving a device to track the position changes of the sun declination angles so as to improve tracking precision and lower tracking cost. A piston of a hydraulic cylinder is driven to carry out the reciprocating motion by the internal intensity of pressure generated by the thermal expansion and the cold contraction of thermal expansion fluid media under the changing action of the underground superficial layer soil temperatures; a piston rod pushes a rotating support to track the changes of the sun declination angles, and an intervention type temperature compensation adjusting device or an automatic temperature compensation adjusting device is additionally arranged in a tracking device to be used for compensating the phase difference existing between the underground superficial layer soil temperatures and the sun declination angle changing rules. According to the adjusting method, the inclination angle of a solar energy receiver is adjusted to be small in the periods before and after the summer solstice and in the periods before and after the winter solstice to offset the errors brought by low temperature hysteresis in winter, and the automatic temperature compensation adjusting device is capable of ensuring the high and accurate tracking all the year round without manual adjustment.
Description
Technical field
The invention belongs to solar utilization technique.
Background technology
The sun direct projection incident ray a bit located at the earth is vary at any time, in order to utilize beam radia energy as much as possible, helioplant requires to be equipped with can the device of tracking position of sun, most solar energy tracking device is based on electric driver, this kind of device tracking precision is high, but consume energy in tracing process, operation and maintenance cost is high, present invention achieves the change that declination angle is followed the tracks of in the regularity change utilizing the underground shallow layer soil moisture, this tracking means does not consume energy, cost is low, easy care, has very high application prospect and marketable value.
Also do not find about utilizing the underground shallow layer soil moisture tracking device of declination angle and the document of control method.There is the state-of-the-art technology that a technology becomes comparatively similar with the art of this patent.This technology is the patent of invention technology of published " utilizing the automatic method for tracking solar energy of temperature variation ", its number of patent application is 201110286643.3, this technology follows the tracks of the change of sun altitude with the diurnal variation law of environment temperature, utilize morning illumination compensation to reduce heat absorption sluggish, to improve tracking accuracy.This technology obviously also exists following problem: 1, sun altitude is all vary from sun to sun constantly, from at sunrise only have the several years to seventy or eighty degree increasing and reduce with latitude of the meridian hour, arrive the elevation angle of getting back to again the several years at sunset again, vary within wide limits, pace of change is fast, and it is different along with the difference in season, therefore to the tracer request fast response time of sun altitude, and the temperature variation of expansion drum inner fluid is owing to being subject to impact and the restriction of the thermal inertia of heat transfer resistance and device itself, rate temperature change is slower, the device enthusiastically driven by expansion drum inner fluid temperature variation is difficult to the rate of change of tracking in time sun power elevation angle, cause larger tracking error.
2, the change consistance of sun altitude and environment temperature is poor.The change of environment temperature exist short period property in one day, mid-term periodically at two strong convective weather Durings, in long periodicity 1 year, within the short period, the Changing Pattern of environment temperature and sun altitude also in life period with the difference on variation characteristic; Within the middle cycle, after each strong cooling weather, even in close several days, environment temperature will be fine and rise rapidly along with weather, and the variation of ambient temperature in front and back several days is comparatively large, and the Changing Pattern of sun altitude is substantially constant; In long period, summer, temperature on average was very high, and temperature in winter is very low, summer, environment temperature was sooner or later also high compared with the temperature at noon in winter, but summer, sun altitude was sooner or later more much lower than midday sun elevation angle in winter, therefore the change consistance of sun altitude and environment temperature is poor, and utilizing environment temperature to follow the tracks of the precision of declination angle will be lower.
3, the impact of weather conditions on this Technical Follow-Up precision is large, under sunny and calm weather condition, there is certain correlativity in environment temperature and sun altitude, this technology still can be followed the tracks of, but under strong wind, greasy weather or cloudy weather condition, the correlationship of environment temperature and sun altitude weakens, and now utilizes environment temperature to follow the tracks of sun altitude and just becomes impossible.
4, life period hesitation between tracking target angle and the environment temperature used, illumination compensation method, while solution ascent stage problem, adds the tracking error of descending branch, and simultaneously under the poor condition of weather, this method can not use.Under fine and calm condition, environment temperature rises with the rising of sun altitude, decline with the reduction of sun altitude, but and asynchronous change, but have a phase differential, also be time lag, follow the tracks of sun altitude by environment temperature and need braking problems settling time, and during by illumination compensation method braking problems settling time, the sun altitude ascent stage accelerates the temperature rise rate in expansion drum by illumination, solve the time lag problem of part ascent stage, but in the existence of sun altitude descending branch due to illumination, the temperature drop rate in expansion drum is made to slow down on the contrary, make problem more serious, tracking error strengthens.If when having cloud cover or sun direct projection is more weak, this method can not play due effect.
5, between sun altitude and day environment temperature every day all life period hesitations, all temperature-compensated regulator joint must be carried out every day when therefore following the tracks of sun altitude by environment temperature, the adjustment frequency is high, if manual adjustments, needs special messenger to be responsible for, to waste time and energy and cost is high; If Illumination adjusting, be then difficult to ascent stage and descending branch and take into account, therefore this tracking means accurate tracking cost is high, and it is large that non-precision follows the tracks of then error.
Summary of the invention
The object of the invention is to utilize the Changing Pattern drive unit of the underground shallow layer soil moisture to follow the tracks of the change in location of declination angle, improve tracking accuracy, reduce and follow the tracks of cost.
The present invention is the device and the control method that utilize the underground shallow layer soil moisture to follow the tracks of declination angle, the device north-south utilizing the underground shallow layer soil moisture to follow the tracks of declination angle is placed, be provided with northern support bar 3 and southern support bar 12, southern support bar 12 or northern support bar 3 are serially connected with telescoping hydraulic cylinder 6 and piston rod 11 thereof, inner chamber and the inner chamber UNICOM being embedded in the thermal expansion tank 8 in underground shallow layer soil 10 of hydraulic cylinder 6, thermal expansive fluid medium 9 is filled with in the inner chamber of hydraulic cylinder 6 and thermal expansion tank 8, by the bracket 18 below solar receiver 1, north support bar 3, in the polygonized structure that south support bar 12 and pedestal 13 form, have three rotary moveable nodes at least, this device is provided with intervention formula temperature compensation regulating device 16, or be provided with auto thermal compensation regulating device 19, intervention formula temperature compensation regulating device 16 is located on northern support bar 3, or on southern support bar 12, or on bracket 18, or on hydraulic cylinder 6, or on pilot flexible pipe 7, or on thermal expansion tank 8, auto thermal compensation regulating device 19 is located on northern support bar 3, or on southern support bar 12.
The underground shallow layer soil moisture is utilized to follow the tracks of the control method of the device of declination angle, described intervention formula temperature compensation regulating device 16, its control method is: between the August 31 in annual June 1, successively shorten southern support bar 12 for 1 ~ 5 time by intervening formula temperature compensation regulating device 16 points or extend northern support bar 3, to tune up the inclination angle of solar receiver 1, altogether tune up 5 ~ 20 degree; Between the February 28 in annual Dec 1, successively lengthen southern support bar 12 for 1 ~ 5 time by intervening formula temperature compensation regulating device 16 points, or shorten northern support bar 3, turn the inclination angle of solar receiver 1 down, altogether turn 5 ~ 20 degree down.
Beneficial effect of the present invention is:
1, patent of the present invention is no longer followed the tracks of sun altitude then is followed the tracks of declination angle, declination angle with 1 year for the cycle, the tropic of Cancer from the tropic of Capricorn in Winter Solstice to the Summer Solstice, arrive the tropic of Capricorn again, it is 47 degree that year amounts to amplitude of variation, change in every 24 hours 0.26 degree, therefore the device following the tracks of declination angle almost can not moved at all in some day, its tracking error is also less than 0.26 degree, therefore the response speed required by solar declination angle tracking unit is slow, be applicable to following the tracks of with the temperature variation of expansion pot liquid, and tracking accuracy is high.
2, the change consistance of declination angle and the underground shallow layer soil moisture is good.First, the underground shallow layer soil moisture did regular variation with the change of declination angle in 1 year, on the Northern Hemisphere, when sun power declination angle raises, due south, north is born, the underground shallow layer soil moisture also rises thereupon, and when sun power declination angle reduces, the underground shallow layer soil moisture also declines thereupon; Secondly, the amplitude of variation of underground shallow layer soil moisture every day is very little, and this variation characteristic is very consistent with the variation characteristic of declination angle; Therefore, the change consistance of declination angle and the underground shallow layer soil moisture is good, utilizes underground shallow layer soil moisture tracking solar declination angular accuracy high.
3, the impact of Changes in weather on this device tracking precision is little.The existence of the thermal inertia that the coefficient of heat conductivity due to soil is little and the earth is huge, the impacts of short-term strong convective weather on underground thin solum temperature such as picture is blown, rained, cooling are very little, even if therefore under this atrocious weather condition, this device also can follow the tracks of declination angle well.
4, the present invention adopt intervention formula temperature compensation regulating device or auto thermal compensation regulating device solve the time lag effect existed between tracking target angle and institute's serviceability temperature all preferably.The present invention is at northern support bar, or southern support bar, or hydraulic cylinder, or pilot flexible pipe, or thermal expansion tank is provided with intervention formula temperature compensation regulating device, at the annual inclination angle tuning up solar receiver around the Summer Solstice, the mode turning the inclination angle of solar receiver at halcyon days down solves the time lag effect existed between tracking target angle and institute's serviceability temperature, because regulate number of times few, manual adjustments, easy to adjust, adopt before and after the ascent stage and two adjustment before and after descending branch, therefore can simultaneously at ascent stage and the descending branch adjustment time-lag effect of declination angle, make annual tracking accuracy all higher, on the other hand, the cam-type auto thermal compensation regulating device that the present invention installs on northern support bar or southern support bar, can according to the inconsistency between application of installation area declination angle and underground shallow layer soil moisture Changing Pattern, process the outer shape of cam especially, the time lag effect existed between disposable solution declination angle and underground shallow layer soil moisture change curve, fully automatic operation, although early stage, processing cost was slightly high, but tracking accuracy is high, manual intervention is not needed to regulate, convenience and high-efficiency.Two kinds of temperature compensation regulating devices respectively have advantage, can solve the time lag effect existed between tracking target angle and institute's serviceability temperature preferably.
5, the time lag effect between declination angle and the underground shallow layer soil moisture is annual for once, for intervention formula temperature compensation regulating device, only need respectively regulate 1 ~ 5 time in the Summer Solstice and halcyon days, because the adjustment number of times caused by time lag effect is few, if after regulating, tracking accuracy is high respectively regulate 4 times in the Summer Solstice and halcyon days, year follows the tracks of maximum error and can be reduced to 2 degree, and in partial devices, manual adjustments can meet the demands, and therefore tracking means cost is low; For auto thermal compensation regulating device, because of without the need to artificial adjustment, time saving and energy saving, therefore always follow the tracks of cost also lower.
Accompanying drawing explanation
According to embodiment and accompanying drawing, patent of the present invention is described in further detail below;
Fig. 1 is the tracking means side view of patent of the present invention;
Fig. 2 is the tracking means side view being provided with hand-hydraulic adjustment type regulating device;
Fig. 3 is the expansion drum tracking means side view integrated with hydraulic cylinder;
Fig. 4 is tripod-shaped tracking means side view;
Fig. 5 is the tracking means side view installing auto thermal compensation regulating device, and Reference numeral and corresponding name are called: 1, solar receiver; 2, the first rotary moveable node; 3, northern support bar; 4, the second rotary moveable node; 5, the 3rd rotary moveable node; 6, hydraulic cylinder; 7, pilot flexible pipe; 8, thermal expansion tank; 9, thermal expansive fluid medium; 10, soil; 11, piston rod; 12, southern support bar; 13, pedestal; 14, fluid injection leakage fluid dram; 15, valve; 16, formula temperature compensation regulating device is intervened; 17, heat insulation layer, 18, bracket, 19, auto thermal compensation regulating device.
Embodiment
Below in conjunction with accompanying drawing 1-5, enforcement of the present invention is described in further detail, but to those skilled in the relevant art, according to thought of the present invention, all likely changes in specific embodiments and applications.So, this instructions should be interpreted as limitation of the present invention.Any change under basic thought restriction of the present invention all belongs within scope, and scope of patent protection proper right of the present invention requires restriction.
As Fig. 1, Fig. 2, Fig. 3, Fig. 4, shown in Fig. 5, the invention provides a kind of device and the control method that utilize underground shallow layer soil moisture tracking declination angle, its embodiment is: this device north-south is placed, be provided with two groups, north and south support bar: northern support bar 3 and southern support bar 12, southern support bar 12 or northern support bar 3 are serially connected with telescoping hydraulic cylinder 6 and piston rod 11 thereof, inner chamber and the inner chamber UNICOM being embedded in the thermal expansion tank 8 in underground shallow layer soil 10 of hydraulic cylinder 6, thermal expansive fluid medium 9 is filled with in the inner chamber of hydraulic cylinder 6 and thermal expansion tank 8, by the bracket 18 below solar receiver 1, north support bar 3, in the polygonized structure that south support bar 12 and pedestal 13 form, have three rotary moveable nodes at least, this device or be provided with intervention formula temperature compensation regulating device 16, or be provided with auto thermal compensation regulating device 19, intervention formula temperature compensation regulating device 16 is located at northern support bar 3, or southern support bar 12, or bracket 18, or hydraulic cylinder 6, or pilot flexible pipe 7, or on thermal expansion tank 8, auto thermal compensation regulating device 19 is located on northern support bar 3, or on southern support bar 12.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, the buried depth of thermal expansion tank 8 in soil 10 is between 5cm ~ 100cm, or thermal expansion tank 8 is placed on above position, ground, but installs the thick above heat insulation layer 17 of 30cm additional, with the impact preventing the short-term fluctuation of environment temperature from causing it.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5, hydraulic cylinder 6 or be connected by pilot flexible pipe 7 and thermal expansion tank 8, or be directly installed on thermal expansion tank 8, the inner chamber of hydraulic cylinder 6 is directly connected with the inner chamber of thermal expansion tank 8.
As shown in Fig. 1, Fig. 3, Fig. 4, Fig. 5, pilot flexible pipe 7 or thermal expansion tank 8 are provided with fluid injection leakage fluid dram 14 and valve 15.
As shown in Figure 1, Figure 2, Figure 3, Figure 4, intervene formula temperature compensation regulating device 16 or spiro rod regulating device, or sliding sleeve regulating device, or slide adjustment, or hydraulic regulating device or barometric control unit.
As shown in Figure 5, auto thermal compensation regulating device 19 is cam adjustment devices, the axle center of cam adjustment device is fixed, the outer end points of piston rod 11 and being a bit connected in cam card, the reciprocal operation driving cam of piston rod 11 moves in a circle around its axle center, the line connecting cam edge solstics and closest approach is 10 ~ 60 degree with the angle be connected between piston rod 11 end points movement locus solstics and the line of closest approach, cam edge line is divided into rising part and sloping portion two parts by the line connecting solstics, cam edge line-spacing center and closest approach, being arranged on cam adjustment device on southern support bar 12 when piston rod 11 is in lowest order, cam edge line-spacing center point is farthest down, the distance being arranged on the edge line distance center of the rising part of the cam adjustment device on southern support bar 12 is greater than the distance of edge line apart from center of sloping portion, the cam adjustment device be arranged on northern support bar 3 is contrary with the cam adjustment device be arranged on southern support bar 12, one end of bracket 18 is connected with the southern support bar 12 or northern support bar 3 not installing hydraulic cylinder 6, the other end moves along the top edge line of cam or lower edge line.
As shown in Figure 1, Figure 2, Figure 5, hydraulic cylinder 6 and pilot flexible pipe 7 outside surface or be provided with heat insulation layer 17.
As shown in Figure 1, Figure 2, Figure 3, Figure 4, the control method of intervention formula temperature compensation regulating device 16 is: between the August 31 in annual June 1, successively shorten southern support bar 12 for 1 ~ 5 time by intervening formula temperature compensation regulating device 16 points or extend northern support bar 3, to tune up the inclination angle of solar receiver 1, altogether tune up 5 ~ 20 degree; Between the February 28 in annual Dec 1, successively lengthen southern support bar 12 for 1 ~ 5 time by intervening formula temperature compensation regulating device 16 points, or shorten northern support bar 3, turn the inclination angle of solar receiver 1 down, altogether turn 5 ~ 20 degree down.
Below in conjunction with specific embodiment, patented technology of the present invention is further described.
Embodiment 1
As shown in Figure 1, this device north-south is placed, be provided with two groups, north and south support bar: northern support bar 3 and southern support bar 12, southern support bar 12 is serially connected with telescoping hydraulic cylinder 6 and piston rod 11 thereof, inner chamber and the inner chamber UNICOM being embedded in the thermal expansion tank 8 in underground shallow layer soil 10 of hydraulic cylinder 6, thermal expansive fluid medium 9 is filled with in the inner chamber of hydraulic cylinder 6 and thermal expansion tank 8, by the bracket 18 below solar receiver 1, north support bar 3, in the polygonized structure that south support bar 12 and pedestal 13 form, there are three rotary moveable nodes, southern support bar 12 is provided with screw rod adjustment type and intervenes formula temperature compensation regulating device 16.
The buried depth of thermal expansion tank 8 in soil 10 is 50cm, hydraulic cylinder 6 is connected by pilot flexible pipe 7 and thermal expansion tank 8, pilot flexible pipe 7 is provided with fluid injection leakage fluid dram 14 and valve 15, device more than the ground directly contacted with thermal expansive fluid medium 9, as the outside surfaces such as hydraulic cylinder 6, pilot flexible pipe 7 are provided with heat insulation layer 17, to reduce the impact of environment temperature on thermal expansive fluid medium 9 temperature.
It intervenes formula temperature compensation control method: between the July 15 in annual July 1, and by intervening, formula temperature compensation regulating device 16 is disposable shortens certain length by southern support bar 12, increases 16 degree to make the inclination angle of solar receiver 1 on former basis; Between the January 20 in annual January 5, then by intervention formula temperature compensation regulating device 16 disposable lengthening south support bar 12, on former basis, reduce 16 degree to make the inclination angle of solar receiver 1.
Embodiment 2
As shown in Figure 2, on the basis of embodiment 1, screw rod hydraulic being intervened formula temperature compensation regulating device 16 is retrofitted on thermal expansion tank 8, the buried depth of thermal expansion tank 8 in soil 10 is 30cm, hydraulic cylinder 6 is connected by pilot flexible pipe 7 and thermal expansion tank 8, this device does not establish independent fluid injection leakage fluid dram 14 and valve 15, but intervene formula temperature compensation regulating device 16 as fluid injection leakage fluid dram 14 and valve 15 using screw rod hydraulic, outside of deivce face more than ground is provided with heat insulation layer 17, to reduce the impact of environment temperature on thermal expansive fluid medium 9 temperature.
It is intervened formula temperature compensation control method and changes into: between the August 31 in annual June 1, successively shortening southern support bar 12 for 2 times, to tune up the inclination angle of solar receiver 1, altogether tuning up 5 degree by intervening formula temperature compensation regulating device 16 points; Between the February 28 in annual Dec 1, more successively lengthen southern support bar 12 for 2 times by intervention formula temperature compensation regulating device 16 points, turn the inclination angle of solar receiver 1 down, altogether turn 5 degree down.
Embodiment 3
As shown in Figure 3, on the basis of embodiment 1, change intervention formula temperature compensation regulating device 16 into sliding sleeve regulating device, intervention formula temperature compensation regulating device 16 is retrofitted on northern support bar 3, the buried depth of thermal expansion tank 8 in soil 10 is 100cm, hydraulic cylinder 6 directly and thermal expansion tank 8 be connected, fluid injection leakage fluid dram 14 and valve 15 change into thermal expansion tank 8, and heat insulation layer 17 is not established in the outside of deivce face more than ground.
It is intervened formula temperature compensation control method and changes into: between the August 31 in annual June 1, successively extending northern support bar 3 for 3 times, to tune up the inclination angle of solar receiver 1, altogether tuning up 15 degree by intervening formula temperature compensation regulating device 16 points; Between the February 28 in annual Dec 1, more successively shorten northern support bar 3 for 3 times by intervention formula temperature compensation regulating device 16 points, turn the inclination angle of solar receiver 1 down, altogether turn 15 degree down.
Embodiment 4
As shown in Figure 4, on the basis of embodiment 1, change intervention formula temperature compensation regulating device 16 into slide adjustment, intervention formula temperature compensation regulating device 16 is retrofitted on northern support bar 3, the buried depth of thermal expansion tank 8 in soil 10 is 80cm, hydraulic cylinder 6 is connected by pilot flexible pipe 7 and thermal expansion tank 8, and fluid injection leakage fluid dram 14 and valve 15 change into pilot flexible pipe 7, and heat insulation layer 17 is not established in the outside of deivce face more than ground.
It is intervened formula temperature compensation control method and changes into: between the August 31 in annual June 1, successively extending northern support bar 3 for 4 times, to tune up the inclination angle of solar receiver 1, altogether tuning up 12 degree by intervening formula temperature compensation regulating device 16 points; Between the February 28 in annual Dec 1, more successively shorten northern support bar 3 for 4 times by intervention formula temperature compensation regulating device 16 points, turn the inclination angle of solar receiver 1 down, altogether turn 12 degree down.
Embodiment 5
As shown in Figure 1 to 4, on the basis of embodiment 1, change intervention formula temperature compensation regulating device 16 into hydraulic regulating device, intervention formula temperature compensation regulating device 16 is retrofitted on pilot flexible pipe 7, the buried depth of thermal expansion tank 8 in soil 10 is 5cm, hydraulic cylinder 6 is connected by pilot flexible pipe 7 and thermal expansion tank 8, and without fluid injection leakage fluid dram 14 and valve 15, the outside of deivce face more than ground is provided with heat insulation layer 17.
It is intervened formula temperature compensation control method and changes into: between the August 31 in annual June 1, successively shortening southern support bar 12 for 5 times, to tune up the inclination angle of solar receiver 1, altogether tuning up 20 degree by intervening formula temperature compensation regulating device 16 points; Between the February 28 in annual Dec 1, more successively lengthen southern support bar 12 for 5 times by intervention formula temperature compensation regulating device 16 points, turn the inclination angle of solar receiver 1 down, altogether turn 20 degree down.
Embodiment 6
As shown in Figure 1 to 4, on the basis of embodiment 1, change intervention formula temperature compensation regulating device 16 into slide adjustment, intervention formula temperature compensation regulating device 16 is retrofitted on the bracket 18 of solar receiver 1, thermal expansion tank 8 is placed on more than ground, hydraulic cylinder 6 directly and thermal expansion tank 8 be connected, fluid injection leakage fluid dram 14 and valve 15 are directly installed on thermal expansion tank 8, and the outside of deivce face more than ground is provided with the thick polyurethane heat insulation layer 17 of 30cm.
It is intervened formula temperature compensation control method and changes into: between the August 31 in annual June 1, successively shortening southern support bar 12 for 2 times, to tune up the inclination angle of solar receiver 1, altogether tuning up 18 degree by intervening formula temperature compensation regulating device 16 points; Between the February 28 in annual Dec 1, more successively lengthen southern support bar 12 for 2 times by intervention formula temperature compensation regulating device 16 points, turn the inclination angle of solar receiver 1 down, altogether turn 18 degree down.
Embodiment 7
As shown in Figure 1 to 4, on the basis of embodiment 1, change intervention formula temperature compensation regulating device 16 into barometric control unit, intervention formula temperature compensation regulating device 16 is retrofitted on thermal expansion tank 8, thermal expansion tank 8 is placed on more than ground, hydraulic cylinder 6 directly and thermal expansion tank 8 be connected, do not establish fluid injection leakage fluid dram 14 and valve 15, the outside of deivce face more than ground is provided with the thick polyurethane heat insulation layer 17 of 30cm.
It is intervened formula temperature compensation control method and changes into: between the August 31 in annual June 1, successively shortening southern support bar 12 for 3 times, to tune up the inclination angle of solar receiver 1, altogether tuning up 10 degree by intervening formula temperature compensation regulating device 16 points; Between the February 28 in annual Dec 1, more successively lengthen southern support bar 12 for 2 times by intervention formula temperature compensation regulating device 16 points, turn the inclination angle of solar receiver 1 down, altogether turn 10 degree down.
Embodiment 8
As shown in Figure 1 to 4, on the basis of embodiment 1, telescoping hydraulic cylinder 6 and piston rod 11 thereof being changed into is arranged on northern support bar 3, and be provided with a movable disk at piston rod 11 and northern support bar 3 connection place, piston rod 11 and northern support bar 3 are connected to the two ends of disk diameter, when piston rod 11 upwards runs, northern support bar 3 runs downwards, otherwise otherwise then.
Southern support bar 12 is provided with screw rod adjustment type and intervenes formula temperature compensation regulating device 16
It is intervened formula temperature compensation control method and changes into: between the August 31 in annual June 1, successively shortening southern support bar 12 for 4 times, to tune up the inclination angle of solar receiver 1, altogether tuning up 16 degree by intervening formula temperature compensation regulating device 16 points; Between the February 28 in annual Dec 1, more successively lengthen southern support bar 12 for 2 times by intervention formula temperature compensation regulating device 16 points, turn the inclination angle of solar receiver 1 down, altogether turn 16 degree down.
Embodiment 9
As shown in Figure 5, on the basis of embodiment 1, change intervention formula temperature compensation regulating device 16 into cam-type auto thermal compensation regulating device 19, and be arranged on southern support bar 12, other are identical with embodiment 1, and the line connecting cam edge solstics and closest approach is 60 degree with the angle be connected between piston rod 11 end points movement locus solstics and the line of closest approach.This device is annual without the need to human intervention adjustment, and tracking means also can carry out accurate tracking.
Embodiment 10
As shown in Figure 5, on the basis of embodiment 9, cam-type auto thermal compensation regulating device 19 being changed into is arranged on northern support bar 3, cam edge line-spacing center point is farthest upward when piston rod 11 is in lowest order for cam adjustment device, the edge line of the rising part of cam adjustment device is near apart from the distance at center compared with the edge line of sloping portion apart from the distance at center, and the line connecting cam edge solstics and closest approach is 10 degree with the angle be connected between piston rod 11 end points movement locus solstics and the line of closest approach.This device is annual without the need to human intervention adjustment, and tracking means also can carry out accurate tracking.
Claims (8)
1. utilize the underground shallow layer soil moisture to follow the tracks of the device of declination angle, it is characterized in that: this device north-south is placed, be provided with northern support bar (3) and southern support bar (12), southern support bar (12) or northern support bar (3) are serially connected with telescoping hydraulic cylinder (6) and piston rod (11) thereof, inner chamber and the inner chamber UNICOM being embedded in the thermal expansion tank (8) in underground shallow layer soil (10) of hydraulic cylinder (6), thermal expansive fluid medium (9) is filled with in the inner chamber of hydraulic cylinder (6) and thermal expansion tank (8), by the bracket (18) below solar receiver (1), north support bar (3), in the polygonized structure that south support bar (12) and pedestal (13) form, have three rotary moveable nodes at least, this device is provided with intervention formula temperature compensation regulating device (16), or be provided with auto thermal compensation regulating device (19), intervention formula temperature compensation regulating device (16) is located on northern support bar (3), or on southern support bar (12), or on bracket (18), or on hydraulic cylinder (6), or on pilot flexible pipe (7), or on thermal expansion tank (8), auto thermal compensation regulating device (19) is located on northern support bar (3), or on southern support bar (12).
2. the device utilizing the underground shallow layer soil moisture to follow the tracks of declination angle according to claim 1, is characterized in that: the buried depth of thermal expansion tank (8) in soil (10) is between 5cm ~ 100cm; Or thermal expansion tank (8) is placed on above position, ground, installs the thick above heat insulation layer (17) of 30cm additional, with the impact preventing the short-term fluctuation of environment temperature from causing it.
3. the device utilizing the underground shallow layer soil moisture to follow the tracks of declination angle according to claim 1, it is characterized in that: hydraulic cylinder (6) is connected by pilot flexible pipe (7) and thermal expansion tank (8), or be directly installed on thermal expansion tank (8), the inner chamber of hydraulic cylinder (6) is directly connected with the inner chamber of thermal expansion tank (8).
4. the device utilizing the underground shallow layer soil moisture to follow the tracks of declination angle according to claim 1, is characterized in that: on pilot flexible pipe (7) or thermal expansion tank (8), be provided with fluid injection leakage fluid dram (14) and valve (15).
5. the device utilizing the underground shallow layer soil moisture to follow the tracks of declination angle according to claim 1, it is characterized in that: intervening formula temperature compensation regulating device (16) is spiro rod regulating device, or sliding sleeve regulating device, or slide adjustment, or hydraulic regulating device, or barometric control unit.
6. the device utilizing the underground shallow layer soil moisture to follow the tracks of declination angle according to claim 1, it is characterized in that: auto thermal compensation regulating device (19) is cam adjustment device, the axle center of cam adjustment device is fixed, outer end points and being a bit connected in cam card of piston rod (11), the reciprocal operation driving cam of piston rod (11) moves in a circle around its axle center, the line connecting cam edge solstics and closest approach is 10 ~ 60 degree with the angle be connected between piston rod (11) end points movement locus solstics and the line of closest approach, cam edge line is divided into rising part and sloping portion two parts by the line connecting solstics, cam edge line-spacing center and closest approach, being arranged on cam adjustment device on southern support bar (12) when piston rod (11) is in lowest order, cam edge line-spacing center point is farthest down, the distance being arranged on the edge line distance center of the rising part of the cam adjustment device on southern support bar (12) is greater than the distance of edge line apart from center of sloping portion, the cam adjustment device be arranged on northern support bar (3) is contrary with the cam adjustment device be arranged on southern support bar (12), one end of bracket (18) is connected with the southern support bar (12) or northern support bar (3) not installing hydraulic cylinder (6), the other end moves along the top edge line of cam or lower edge line.
7. the device utilizing the underground shallow layer soil moisture to follow the tracks of declination angle according to claim 1, is characterized in that: be provided with heat insulation layer (17) at the outside surface of hydraulic cylinder (6) and pilot flexible pipe (7).
8. utilize the underground shallow layer soil moisture to follow the tracks of the control method of the device of declination angle, it is characterized in that described intervention formula temperature compensation regulating device (16), its control method is: between the August 31 in annual June 1, successively shorten southern support bar (12) for 1 ~ 5 time by intervening formula temperature compensation regulating device (16) point or extend northern support bar (3), to tune up the inclination angle of solar receiver (1), altogether tune up 5 ~ 20 degree; Between the February 28 in annual Dec 1, successively lengthen southern support bar (12) for 1 ~ 5 time by intervening formula temperature compensation regulating device (16) point, or shorten northern support bar (3), turn the inclination angle of solar receiver (1) down, altogether turn 5 ~ 20 degree down.
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| CN201510312953.6A CN104932556A (en) | 2015-06-10 | 2015-06-10 | Device for tracking sun declination angles by using underground superficial layer soil temperatures and adjusting method |
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| CN201510312953.6A CN104932556A (en) | 2015-06-10 | 2015-06-10 | Device for tracking sun declination angles by using underground superficial layer soil temperatures and adjusting method |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| EP2363662A2 (en) * | 2010-03-04 | 2011-09-07 | COFRAENERGY S.r.l. con Unico Socio | Support for solar panels |
| CN102427317A (en) * | 2012-01-10 | 2012-04-25 | 浙江天达光伏科技有限公司 | Photovoltaic tree with sunflower characteristic and manufacturing method thereof |
| CN102467130A (en) * | 2010-11-18 | 2012-05-23 | 天津天高自动化工程有限公司 | Dual-shaft support structure of concentration photovoltaic panel |
| CN102609007A (en) * | 2012-03-30 | 2012-07-25 | 陕西科技大学 | Sunlight polar axis type automatic tracking device |
| KR101298633B1 (en) * | 2012-02-07 | 2013-08-21 | 주식회사 케이디파워 | Water Float Type Solar Power Generator |
| CN104020794A (en) * | 2014-06-13 | 2014-09-03 | 兰州理工大学 | Device for tracking sun declination angles by using underground superficial layer soil temperatures and adjusting method |
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2015
- 2015-06-10 CN CN201510312953.6A patent/CN104932556A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP2363662A2 (en) * | 2010-03-04 | 2011-09-07 | COFRAENERGY S.r.l. con Unico Socio | Support for solar panels |
| CN102467130A (en) * | 2010-11-18 | 2012-05-23 | 天津天高自动化工程有限公司 | Dual-shaft support structure of concentration photovoltaic panel |
| CN102427317A (en) * | 2012-01-10 | 2012-04-25 | 浙江天达光伏科技有限公司 | Photovoltaic tree with sunflower characteristic and manufacturing method thereof |
| KR101298633B1 (en) * | 2012-02-07 | 2013-08-21 | 주식회사 케이디파워 | Water Float Type Solar Power Generator |
| CN102609007A (en) * | 2012-03-30 | 2012-07-25 | 陕西科技大学 | Sunlight polar axis type automatic tracking device |
| CN104020794A (en) * | 2014-06-13 | 2014-09-03 | 兰州理工大学 | Device for tracking sun declination angles by using underground superficial layer soil temperatures and adjusting method |
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