CN114001467A - Arrangement method of groove type solar heat collection field and heat collector adjusting device - Google Patents
Arrangement method of groove type solar heat collection field and heat collector adjusting device Download PDFInfo
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- CN114001467A CN114001467A CN202110955748.7A CN202110955748A CN114001467A CN 114001467 A CN114001467 A CN 114001467A CN 202110955748 A CN202110955748 A CN 202110955748A CN 114001467 A CN114001467 A CN 114001467A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
- F24S23/70—Arrangements for concentrating solar-rays for solar heat collectors with reflectors
- F24S23/74—Arrangements for concentrating solar-rays for solar heat collectors with reflectors with trough-shaped or cylindro-parabolic reflective surfaces
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S20/00—Solar heat collectors specially adapted for particular uses or environments
- F24S20/20—Solar heat collectors for receiving concentrated solar energy, e.g. receivers for solar power plants
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S30/00—Arrangements for moving or orienting solar heat collector modules
- F24S30/40—Arrangements for moving or orienting solar heat collector modules for rotary movement
- F24S30/42—Arrangements for moving or orienting solar heat collector modules for rotary movement with only one rotation axis
- F24S30/425—Horizontal axis
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/47—Mountings or tracking
Abstract
The application relates to a method for arranging a trough type solar heat collecting field, belonging to the field of solar power generation; which comprises the following steps: s1: calculating the incident angle of the sun, and determining the number proportion of loops; s2: the trough type heat collector is arranged, the tracking shafts during arrangement are respectively arranged in a south-north horizontal mode and an east-west horizontal mode, and the quantity proportion of the south-north horizontal mode and the east-west horizontal mode is the same as the quantity proportion of the loops. A heat collector adjusting device comprises a heat collector mirror surface, an installation frame for installing the heat collector mirror surface, a rotating shaft arranged on the installation frame, support frames arranged at two ends of the rotating shaft, and an adjusting assembly arranged on the support frames, wherein the adjusting assembly comprises a support seat and a hydraulic cylinder hinged on the support seat; the end part of the mounting frame is fixedly connected with a swinging plate, and one end of the swinging plate, which is far away from the mounting frame, is hinged with a piston rod of the hydraulic cylinder. The solar trough solar thermal power generation system has the advantages of stabilizing the output energy of the heat collector and improving the circulating efficiency of the trough solar thermal power generation system.
Description
Technical Field
The application relates to the field of solar power generation, in particular to a method for arranging a trough type solar heat collection field and a heat collector adjusting device.
Background
The trough type heat collection system realizes the photo-thermal conversion process of the system by utilizing the solar radiation energy with high heat flux density collected by the trough type parabolic concentrating reflectors. Sunlight penetrates through the atmosphere and is incident on the earth surface, radiation energy with low heat flux density can be generated, the economy of the sunlight is influenced by direct utilization, and only the radiation energy with low heat flux density is converted into the radiation energy with high heat flux density through concentration. From the analysis of optical theory, the parabolic spotlight is a line type which can converge a beam of parallel light to a point. Thus, parabolic concentrating is one of the most common forms of concentrating, and solar trough collectors are one of them.
In view of the above related technologies, the inventor thinks that the arrangement mode of the current trough-type solar heat collection field widely adopts north-south arrangement or east-west arrangement, and is only arrangement in a single direction, and the single arrangement mode has limitations, which easily causes unstable energy output of the heat collection field, and further affects the cycle efficiency of the trough-type solar heat power generation system.
Disclosure of Invention
In order to improve the cycle efficiency of a trough-type solar thermal power generation system, the application provides a trough-type solar thermal collection field arrangement method and a thermal collector adjusting device.
In a first aspect, the present application provides a method for arranging a trough-type solar thermal field, which adopts the following technical scheme: a trough type solar heat collection field arrangement method comprises the following steps:
s1: calculating the incident angle of the sun, and determining the number proportion of loops;
s2: the trough type heat collector is arranged, the tracking shafts during arrangement are respectively arranged in a south-north horizontal mode and an east-west horizontal mode, and the quantity proportion of the south-north horizontal mode and the east-west horizontal mode is the same as the quantity proportion of the loops.
By adopting the technical scheme, through the steps, the heat collectors which are horizontally arranged for drinking water can be installed according to the actual conditions of the solar power plant, so that the optimal generated energy can be realized by the heat collectors in different time periods, and the energy output by the heat collectors is more stable, thereby improving the cycle efficiency of the trough-type solar thermal power generation system.
Optionally, the step S1 is to calculate the solar incident angle by using the following formula:
the south-north direction horizontal arrangement of slot type heat collector, during east-west direction single-axis tracking, the solar incident angle expression of solar beam central ray is:
the groove type heat collector is horizontally arranged in the east-west direction, and during single-axis tracking in the north-south direction, the expression of the solar incident angle of the central line of sunlight is
SSuction device＝π·D2·L
SCollection＝W·L
Wherein: delta is solar declination angle; h iscIs the solar altitude; omega is the solar time angle; theta is an included angle between the incident light and the normal line of the trough type heat collector; sSuction deviceAbsorbing the surface area of the outer wall surface of the metal heat absorption pipe; sCollectionThe area of the trough collector is collected; ef is the optical efficiency of the heat collection field.
By adopting the technical scheme, the loop quantity proportion of the south-north horizontal arrangement and the east-west horizontal arrangement of the heat collector can be rapidly and accurately calculated through the two expressions, so that the solar heat collection field can be rapidly and conveniently arranged, and the power generation efficiency of the heat collection field can be maximized.
In a second aspect, the present application provides a heat collector adjusting device, which adopts the following technical scheme:
a heat collector adjusting device comprises a heat collector mirror surface, an installation frame for installing the heat collector mirror surface, a rotating shaft arranged on the installation frame, support frames arranged at two ends of the rotating shaft, and an adjusting assembly arranged on the support frames, wherein the adjusting assembly comprises a support seat and a hydraulic cylinder hinged on the support seat;
the end part of the mounting frame is fixedly connected with a swinging plate, and one end of the swinging plate, which is far away from the mounting frame, is hinged with a piston rod of the hydraulic cylinder.
Through adopting above-mentioned technical scheme, the pneumatic cylinder can control the swing of swing board, and then the swing of control mounting bracket reaches the purpose of adjusting the heat collector mirror surface, and power provides for the pneumatic cylinder, and power is more stable, can drive the stable motion of mounting bracket.
Optionally, the support frame is further provided with a plurality of leveling assemblies, the support frame is disconnected from the middle part and is divided into an upper half part and a lower half part, and the plurality of leveling assemblies are uniformly distributed between the upper half part and the lower half part;
the leveling component comprises two arc plates which are symmetrically arranged in a semi-circular ring shape, the two semi-circular arc plates are respectively and fixedly connected with the upper half part and the lower half part, and the opening ends of the two arc plates are mutually attached;
the thickening post of cylinder type can insert between two arcs, and the periphery of thickening post and the interior concave surface of arc all have the screw thread, threaded connection between thickening post and the arc.
Through adopting above-mentioned technical scheme, when live time is too long, the support frame produces the less subsidence of range easily, lead to the mounting bracket to produce the slope easily, insert the thickening post between two connecting portion, the thickening post can strut two arcs, thereby realize highly adjusting the purpose to the support frame, can make the mounting bracket get back to the horizontally state again, and a plurality of leveling subassemblies, can conveniently adjust the support frame more, thickening post and arc threaded connection, can make thickening post and arc be connected more stably.
Optionally, the one end of thickening post is equipped with conical guide post, and the terminal diameter of guide post is the same with the diameter of thickening post, and the guide post can with the interior concave surface screw-thread fit of arc.
Through adopting above-mentioned technical scheme, in order to strut the arc, so the external diameter of thickening post is bigger than the tubular structure internal diameter that two arcs constitute, so be equipped with the guide post, the guide post plays the effect of direction, makes thickening post can get into between two arcs, struts the arc, reaches the purpose of adjusting the support frame height.
Optionally, the through-hole has been seted up at the center of thickening post, and it has the dead lever to peg graft in the through-hole, and the one end of dead lever passes through-hole and guide post fixed connection, and the other one end threaded connection of dead lever has the butt nut, and butt nut and guide post can press from both sides tightly thickening post.
Through adopting above-mentioned technical scheme, make the guide post can used repeatedly, reduce the waste of resource, and can avoid the support frame to have extra lug, avoid the lug to cause the damage to the human body.
Optionally, a plurality of lugs of one end fixedly connected with of thickening post near the guide post, set up a plurality of connecting holes that can hold the lug on the tip of guide post.
Through adopting above-mentioned technical scheme, further increase the connectivity between guide post and the thickening post, make the guide post can not produce relative rotation with the thickening post, and can reduce the moment of torsion that the dead lever received to increase the life of dead lever.
In summary, the present application includes at least one of the following beneficial technical effects:
1. by the arrangement method in the steps S1 and S2, the heat collector in the trough type solar power generation field adopts a method of arranging and combining the east and west directions and the south and north directions, so that the power generation efficiency of the power generation field is higher, and the output of the energy in one day does not generate overlarge fluctuation, so that the energy output by the heat collector is more stable, and the circulation efficiency of the trough type solar thermal power generation system is improved;
2. the quantity proportion of the heat collectors arranged in the north-south direction and the east-west direction can be rapidly calculated through the notarization in the S2, and then a solar power plant can be rapidly and accurately constructed;
3. the driving assembly can conveniently and quickly adjust the mirror surface angle of the heat collector, and the leveling assembly can enable the mounting frame to keep the horizontal state, so that the heat collector can be in the best heat collection state, and the power generation efficiency of a power generation field is improved.
Drawings
FIG. 1 is a schematic view showing a horizontal arrangement of heat collectors in the north-south direction in the embodiment.
Fig. 2 is a schematic view showing an east-west horizontal arrangement of the heat collector in the embodiment.
Fig. 3 is a schematic view of the overall structure of the heat collector in the embodiment.
FIG. 4 is a schematic view of the stand structure of the embodiment.
FIG. 5 is a schematic view of an embodiment highlighting the position of the leveling assembly.
FIG. 6 is an exploded view of the structure of the highlighted leveling assembly of the embodiment.
FIG. 7 is an exploded view of the salient bump in the embodiment.
Description of reference numerals: 1. a collector mirror surface; 2. a mounting frame; 3. a horizontal axis; 4. a support frame; 41. a support pillar; 411. an upper half part; 412. a lower half; 413. a fixed block; 414. a limiting block; 415. a guide bar; 42. a cross bar; 43. a substrate; 44. heightening; 5. a drive assembly; 51. a swing plate; 52. a hydraulic cylinder; 6. a leveling assembly; 61. an arc-shaped plate; 62. Thickening the column; 621. connecting holes; 63. a guide post; 64. a bump; 65. a through hole; 66. fixing the rod; 67. the nut is tightly propped.
Detailed Description
The present application is described in further detail below with reference to figures 1-6.
The embodiment of the application discloses a method for arranging a trough type solar heat collection field. Referring to fig. 1 and 2, the method for arranging the trough type solar heat collecting field comprises the following steps:
s1: calculating the incident angle of the sun, determining the number proportion of the loops, and calculating the incident angle of the sun by adopting the following formula:
when the trough heat collector is horizontally arranged in the north-south direction and is tracked in the east-west direction by a single shaft, the solar incident angle expression of the central ray of the solar beam is as follows:
when the trough type heat collector is horizontally arranged in the east-west direction and is subjected to single-axis tracking in the north-south direction, the expression of the solar incident angle of the central line of the solar beam is
SSuction device＝π·D2·L
SCollection＝W·L
Wherein: delta is the solar declination angle in degrees; h iscIs the solar altitude, in degrees; ω is the solar hour angle in degrees; theta is an included angle between incident light and a normal line of the trough type heat collector, and the unit is degree; sSuction deviceThe absorption is the surface area of the outer wall surface of the metal heat absorption tube, and the unit m2；SCollectionThe opening area of the trough type heat collector is collected, and the unit m2(ii) a q isHeat flow density, unit, w/m, indicated by collector tube2(ii) a Ef is the optical efficiency of the heat collection field, unit%; d2The diameter of the collector tube, unit m; l heat collecting pipe is long and unit m; w condenser opening width, unit m; DNI solar normal direct irradiance w/m2。
The maximum optical efficiency (Ef) of the heat collection field calculated by the formula is an optimization target, and the capacity proportion of the trough type heat collector arranged in the north-south direction and the east-west direction, namely the loop quantity proportion, is finally obtained by taking the terrain, the local DNI level, the ambient temperature and the sunshine duration as optimization parameters.
S2: the trough type heat collector is arranged, the tracking shafts during arrangement are respectively arranged in a south-north horizontal mode and an east-west horizontal mode, and the quantity proportion of the south-north horizontal mode and the east-west horizontal mode is the same as the quantity proportion of the loops. And determining the arrangement quantity of the trough-type solar thermal power station in different directions according to the loop quantity ratio calculated in the calculating step S1, and ensuring that the quantity ratio of the north-south horizontal arrangement to the east-west horizontal arrangement is the same as the loop quantity ratio, so that the arrangement of the trough-type solar thermal power station is completed, the difference of the generated energy of the trough-type solar thermal power station arranged in different directions is small, and the trough-type solar thermal power station is ensured to provide stable electric quantity output.
When the optical lens is arranged in the north-south direction, the change of the incident angle is large, the tracking angular speed is large, the energy consumption of a control system is large, and the average optical efficiency is high; when the solar energy collecting device is arranged in the east-west direction, the change of the solar incident angle is small, and the incident angles are basically the same in four seasons of the year. The groove type heat collecting system arranged in the east-west direction is adopted, the change range of the tracking angle is small, the tracking angular speed is small, the energy consumption of the control system is small, but the average optical efficiency in one day is low, and the highest optical efficiency of the groove type heat collector in the local can be achieved at noon. The generating efficiency of the groove type photo-thermal power station can be optimized, and the fluctuation is not too large due to the change of the sun angle, so that the output energy is more stable, and the circulating efficiency of the unit is improved.
The embodiment also discloses a regulating device of the heat collector. Referring to fig. 3 and 4, the adjusting device comprises a mounting frame 2 for mounting the mirror surface 1 of the heat collector, a cross shaft 3 arranged on the mounting frame 2, and support frames 4 arranged at two ends of the cross shaft 3; be equipped with drive assembly 5 on the support frame 4, drive assembly 5 is used for driving the swing of mounting bracket 2 to make the heat collector mirror surface 1 of installing on mounting bracket 2 align sunshine as far as, make the thermal-arrest effect of heat collector mirror surface 1 best.
Referring to fig. 3 and 4, the axial direction of cross axle 3 is the same with the length direction of mounting bracket 2, and cross axle 3 and mounting bracket 2 fixed connection, and the both ends of cross axle 3 link together through bearing and support frame 4 to make cross axle 3 rotate along the axis of self, make cross axle 3 can drive mounting bracket 2 swing, and then drive the swing of the heat collector mirror surface 1 of installing on mounting bracket 2 and the sunlight aligns.
Referring to fig. 4, support frame 4 includes that three support columns 41 that are triangular pyramid shape distribution and locate the horizontal pole 42 between the adjacent support column 41 and constitute, and support frame 4 adopts triangle-shaped as major structure, can make support frame 4's structure more stable, can carry out better support to mounting bracket 2.
Referring to fig. 4, a base plate 43 is fixedly connected to the upper end of the supporting column 41, a height increasing frame 44 is fixedly connected to the upper surface of the base plate 43, and the height increasing frame 44 supports the mounting frame 2, so that the height of the mounting frame 2 is increased, and interference between the rotating process of the mounting frame 2 and the supporting column 41 is avoided.
Referring to fig. 4, the driving assembly 5 includes a swing plate 51 fixedly connected to the end of the cross shaft 3 and a hydraulic cylinder 52 hinged to the heightening frame 44, the end of the hydraulic cylinder 52 is hinged to the heightening frame 44, and the end of the piston rod of the hydraulic cylinder 52 is hinged to the swing plate 51, so that the hydraulic cylinder 52 drives the swing plate 51 to swing to drive the cross shaft 3 to swing, thereby indirectly controlling the swing of the mounting frame 2.
Referring to fig. 4 and 5, the support frame 4 is further provided with a plurality of leveling assemblies 6, the leveling assemblies 6 correspond to the support columns 41 one by one, the leveling assemblies 6 are arranged on the support columns 41, and the leveling assemblies 6 can independently adjust the lengths of the support columns 41, so that after the heat collector is installed or the time is too long, when the mounting frame 2 is found to incline, the mounting frame 2 can be adjusted through the leveling assemblies 6, the mounting frame 2 is changed into a horizontal direction, and the heat collection efficiency of the heat collector is prevented from being influenced.
Referring to fig. 5 and 6, leveling assembly 6 includes two semicircular annular arc plates 61 and the thickening post 62 of locating between two arc plates 61, and the tip of two arc plates 61 laminates the structure that constitutes the tube-shape each other, and thickening post 62 is located the structure that two arc plates 61 constitute, and the interior concave surface threaded connection of thickening post 62 and arc plates 61. The supporting column 41 is broken from the middle to form an upper half 411 and a lower half 412, and the two arc plates 61 are fixedly connected with the upper half 411 and the lower half 412 respectively. The thickening column 62 is inserted between the two arc plates 61 and then can expand the two arc plates 61, so as to increase the distance between the upper half part 411 and the lower half part 412, thereby achieving the purpose of adjusting the length of the supporting column 41.
Referring to fig. 6 and 7, one end of the thickening column 62 is provided with a tapered guide column 63, the tail end of the guide column 63 is attached to the end of the thickening column 62, and the diameter of the tail end of the guide column 63 is the same as the outer diameter of the thickening column 62. A plurality of lugs 64 are fixedly connected to the tail end of the guide column 63, the lugs 64 are uniformly distributed around the axis of the guide column 63, a plurality of connecting holes 621 are formed in the end portion of the thickening column 62, and the lugs 64 extend into the connecting holes 621, so that the thickening column 62 and the guide column 63 can rotate together. The outer diameter of thickening post 62 is bigger than the tubular structure internal diameter that two arcs 61 constitute, so insert smoothly between two arcs 61 for thickening post 62, so be equipped with guide post 63, also have the screw thread on the surface of guide post 63 to make guide post 63 can screw in between two arcs 61, make guide post 63 can slowly strut arc 61, make things convenient for thickening the entering of post 62.
Referring to fig. 6 and 7, the axis department of thickening post 62 sets up the through-hole 65 that link up the both ends of thickening post 62, the through-hole 65 interpolation is equipped with dead lever 66, the one end and the guide post 63 fixed connection of dead lever 66, the outstanding one end that the guide post 63 was kept away from to the outstanding thickening post 62 of other one end of dead lever 66, and threaded connection has on the tip that the dead lever 66 is outstanding supports tight nut 67, support tight nut 67 and the tip laminating of thickening post 62, thereby make the stable connection of guide post 63 and thickening post 62 be in the same place. Dead lever 66 pegs graft in through-hole 65, and dead lever 66 links together through butt nut 67 and lug 64 and thickening post 62, makes things convenient for the dismantlement of dead lever 66, installs thickening post 62 behind first half 411 and lower half 412, can dismantle dead lever 66 and guide post 63, realizes the used cycle of dead lever 66 and guide post 63.
Referring to fig. 5, the one end integrated into one piece that guide post 63 was kept away from to dead lever 66 has square shaft 661, after installing dead lever 66 and thickening post 62 together, can be through square shaft 661 more convenient rotation dead lever 66, thereby make dead lever 66 drive thickening post 62 and rotate, and then make thickening post 62 get into between two arcs 61, make thickening post 62 can strut two arcs 61, make the distance between two arcs 61 can produce the change, and then reach the purpose that changes support column 31 length.
Referring to fig. 6 and 7, a fixing block 413 is fixedly connected to the upper half portion 411, a limiting block 414 aligned with the fixing block 413 is fixedly connected to the lower half portion 412, a guide rod 415 is fixedly connected to a side wall of the fixing block 413 close to the limiting block 414, and one end, far away from the fixing block 413, of the guide rod 415 penetrates through the limiting block 414, so that the guide rod 415 can move along the direction of the guide rod 415, and therefore the guide rod 415 and the limiting block 414 are matched with each other, the purpose of guiding the separation of the upper half portion 411 and the lower half portion 412 can be achieved, and the upper half portion 411 and the lower half portion 412 are prevented from being dislocated.
The specific use mode is as follows: after the mounting frame 2 is fixed on the ground, the collector mirror surface 1 is mounted on the mounting frame 2, and the collector mirror surface 1 is required to be mounted horizontally, so that the heat collection efficiency of the collector is prevented from being influenced; the event is measured the levelness of heat collector mirror surface 1, if the levelness meets the requirements, then accomplish the installation of heat collector mirror surface 1, if not conform to, then according to the direction of slope, support column 41 length in mounting bracket 2 is adjusted, specific accommodation process is for revolving earlier into two arcs between the arc 61 with thickening post 62, thickening post 62 can strut two arcs 61, increase the distance between two arcs 61, and then make the distance between first half 411 and the lower half 412, make the length of support column 41 increase, and then reach and adjust mounting bracket 2 levelness, indirectly adjust the purpose of heat collector mirror surface 1 levelness.
The end part of the thickening column 62 is also provided with a guide column 63, so that the thickening column 62 can more easily enter between the two arc-shaped plates 61, and the conical guide column 63 can play a role in guiding; the guide post 63 is connected with the thickening post 62 through a bulge, so that the guide post 63 and the thickening post 62 can rotate together; the fixing rod 66 fixedly connected with the guide post 63 penetrates through the thickened post 62 and then is connected with the thickened post 62 through a fixing nut, and the fixing rod 66 is easier to rotate by the square shaft on the guide post 63 so as to drive the guide post 63 to rotate, so that the thickened post 62 can be driven to rotate, the end part of the thickened post 62 can be level with the side wall of the support post 41, and the side wall of the support post 41 cannot protrude; after the thickened column 62 is installed, the fixing nut is unscrewed, and the guide column 63 and the fixing rod 66 are pulled out, so that the guide column 63 and the fixing rod 66 can be reused, and waste is reduced.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (7)
1. A method for arranging a trough type solar heat collection field is characterized by comprising the following steps: the method comprises the following steps:
s1: calculating the incident angle of the sun, and determining the number proportion of loops;
s2: the trough type heat collector is arranged, the tracking shafts during arrangement are respectively arranged in a south-north horizontal mode and an east-west horizontal mode, and the quantity proportion of the south-north horizontal mode and the east-west horizontal mode is the same as the quantity proportion of the loops.
2. The arrangement method of the trough solar thermal field according to claim 1, wherein: the step S1 is to calculate the solar incident angle by using the following formula:
the south-north direction horizontal arrangement of slot type heat collector, during east-west direction single-axis tracking, the solar incident angle expression of solar beam central ray is:
the groove type heat collector is horizontally arranged in the east-west direction, and during the single-axis tracking in the north-south direction, the solar incident angle expression of the central line of sunlight is as follows:
Ssuction device＝π·D2·L
SCollection＝W·L
Wherein: delta is solar declination angle; h iscIs the solar altitude; omega is the solar time angle; theta is an included angle between the incident light and the normal line of the trough type heat collector; sSuction deviceAbsorbing the surface area of the outer wall surface of the metal heat absorption pipe; sCollectionThe area of the trough collector is collected; ef is the optical efficiency of the heat collection field.
3. The adjusting device applied to the trough type solar heat collection field arrangement method of any one of claims 1-2 comprises a collector mirror surface (1), an installation frame (2) for installing the collector mirror surface (1), a rotating shaft arranged on the installation frame (2) and support frames (4) arranged at two ends of the rotating shaft, and is characterized in that: the device also comprises an adjusting component arranged on the support frame (4), wherein the adjusting component comprises a support seat and a hydraulic cylinder (52) hinged on the support seat;
the end part of the mounting frame (2) is fixedly connected with a swinging plate (51), and one end, far away from the mounting frame (2), of the swinging plate (51) is hinged with a piston rod of the hydraulic cylinder (52).
4. A heat collector adjustment device as defined in claim 3 wherein: the supporting frame (4) is also provided with a plurality of leveling components (6), the supporting frame (4) is divided into an upper half part (411) and a lower half part (412) from the middle part, and the leveling components (6) are uniformly distributed between the upper half part (411) and the lower half part (412);
the leveling component (6) comprises two arc plates (61) which are symmetrically arranged in a semi-circular ring shape, the two semi-circular ring-shaped arc plates (61) are respectively and fixedly connected with the upper half part (411) and the lower half part (412), and the opening ends of the two arc plates (61) are mutually attached;
the thickening post (62) of cylinder type can insert between two arc (61), and the periphery of thickening post (62) and the inner concave surface of arc (61) all have the screw thread, threaded connection between thickening post (62) and the arc (61).
5. The heat collector adjusting apparatus according to claim 4, wherein: one end of the thickening column (62) is provided with a conical guide column (63), and the diameter of the tail end of the guide column (63) is the same as that of the thickening column (62).
6. The heat collector adjusting apparatus according to claim 5, wherein: through-hole (65) have been seted up at the center of thickening post (62), and it has dead lever (66) to peg graft in through-hole (65), and through-hole (65) and guide post (63) fixed connection are passed to the one end of dead lever (66), and the other one end threaded connection of dead lever (66) has the butt nut, and butt nut and guide post (63) can press from both sides tightly thickening post (62).
7. The heat collector adjusting apparatus according to claim 5, wherein: thickening post (62) are close to a plurality of lugs (64) of one end fixedly connected with of guide post (63), set up a plurality of connecting holes (621) that can hold lug (64) on the tip of guide post (63).
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| CN202110840471 | 2021-07-24 |
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