CN210927516U - Photovoltaic module support and device for preventing purlin from being unstable due to wind-borne suction - Google Patents
Photovoltaic module support and device for preventing purlin from being unstable due to wind-borne suction Download PDFInfo
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- CN210927516U CN210927516U CN201921825588.9U CN201921825588U CN210927516U CN 210927516 U CN210927516 U CN 210927516U CN 201921825588 U CN201921825588 U CN 201921825588U CN 210927516 U CN210927516 U CN 210927516U
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- purlins
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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
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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
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The utility model discloses a photovoltaic module support and be used for preventing purlin from receiving wind suction unstability's device thereof, include: connecting rod pieces, connecting pieces and anchoring pieces; the number of the connecting rod pieces is multiple; the connecting rod piece is fixedly arranged on the lower side of the purline of each span of the photovoltaic module bracket; the number of the connecting pieces is multiple; one end of each connecting piece is connected with the connecting rod piece, and the other end of each connecting piece is connected with the anchoring piece; the number of the anchoring parts is multiple; the anchoring piece is used for anchoring underground; wherein, the connecting piece of the connecting rod piece of 2 ~ 3 strides in the photovoltaic module support is connected in an anchor assembly. The utility model discloses a device utilizes anchor assembly's dead weight and the effect of soil on it, offsets the ascending power that wind suction produced, and the cross-section downside unstability that arouses because of wind suction can not take place for the purlin of photovoltaic support.
Description
Technical Field
The utility model belongs to the technical field of photovoltaic power generation, in particular to photovoltaic module support and be used for preventing purlin from receiving wind suction unstability's device thereof.
Background
In the existing photovoltaic module bracket, the distance between the stand columns is short due to the consideration of the influence of wind suction force; the reason for this is that the air suction forces cause the purlines of the cold-formed thin-walled steel to bend upward, and the instability of the lower portion of the cross section due to pressure must be considered during calculation, so that the strength of the cross section cannot be fully exerted.
The span between the support stand columns is limited, so that the number of the bases of the support is large, steel can be wasted, and the cost is increased.
In summary, a new device for preventing the purlin from being unstable due to wind suction for the photovoltaic bracket is needed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a photovoltaic module support and be used for preventing that the purlin from receiving wind suction unstability's device to solve the one or more technical problem of above-mentioned existence.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model discloses a photovoltaic module support is used for preventing that purlin from receiving device of wind suction unstability, include: connecting rod pieces, connecting pieces and anchoring pieces;
the number of the connecting rod pieces is multiple; the connecting rod piece is fixedly arranged on the lower side of the purline of each span of the photovoltaic module bracket;
the number of the connecting pieces is multiple; one end of each connecting piece is connected with the connecting rod piece, and the other end of each connecting piece is connected with the anchoring piece;
the number of the anchoring parts is multiple; the anchoring piece is used for anchoring underground;
wherein, the connecting piece of the connecting rod piece of 2 ~ 3 strides in the photovoltaic module support is connected in an anchor assembly.
The utility model is further improved in that each connecting rod piece is connected with two connecting pieces; the two connecting pieces are symmetrically arranged on the connecting rod piece.
The utility model discloses a further improvement lies in, it is channel-section steel, angle steel, T shaped steel or cold-formed thin-walled steel to connect the member.
The utility model discloses a further improvement lies in, the connecting piece is steel strand wires or reinforcing bar.
The utility model discloses a further improvement lies in, anchor assembly is anchor block or anchor pile.
The utility model is further improved in that the connecting rod piece is provided with a hanging ring, and the connecting piece is provided with a wedge-shaped clamp; the wedge-shaped clamp is connected with the hanging ring.
The utility model discloses a further improvement lies in, anchor assembly bury underground in the depth range of underground be 0.5 ~ 2.0 m.
The utility model discloses a photovoltaic module support, including a plurality of purlins of striding, still include: the utility model discloses a device for preventing purlin from receiving wind suction unstability;
in the photovoltaic module bracket, purlines of each span are cold-formed thin-wall section steel;
the device for preventing the purlins from being unstabilized by wind suction comprises a connecting rod piece and a device for preventing the purlins from being unstabilized by wind suction, wherein the connecting rod piece is fixedly arranged on the lower side of each span of the purlins, and the axis of the connecting rod piece is vertical to the axis of the purlins.
The utility model discloses a further improvement lies in, the connecting rod piece passes through bolt fixed mounting on every striding the purlin.
The utility model discloses a further improvement lies in, a connecting rod spare fixed mounting is at every position of striding the purlin for preventing the purlin from receiving the wind suction unstability's device.
Compared with the prior art, the utility model discloses following beneficial effect has:
the device of the utility model utilizes the dead weight of the anchoring part and the action of the soil on the anchoring part to offset the upward force generated by the wind suction force, and the purline of the photovoltaic bracket can not generate the instability of the lower side of the cross section caused by the wind suction force; the upper side of the purline is firmly connected with the purline due to the photovoltaic assembly plate, and instability can not occur. Therefore, the purline design can be completely calculated according to the strength without considering instability, so that the strength of the material is fully exerted, and the bracket is not easy to be blown over under the condition of strong wind.
Furthermore, after the device of the utility model is adopted and high-strength steel (such as Q390 or Q420) is used in a matching way, the steel can be channel steel, angle steel, T-shaped steel or cold-formed thin-wall steel, so that the section of the purline can be greatly reduced, and the effect of saving steel can be achieved; the interval that can enlarge photovoltaic module support stand by a wide margin reaches the effect of practicing thrift support stand and reducing the stand basis.
Further, the steel strand can adopt 1x3 strands or 1x7 strands, and the nominal diameter is 3-6 mm; the steel wire can be 3-7 mm; the steel bar can be round steel or deformed steel bar with the thickness of 6-10 mm; the stress range of the connecting piece is calculated according to the wind suction force of different project places, and the stress of a single connecting piece is about 5-20 kN. Since the material of the connection rods and the connection system is a conductor (steel or aluminum), it is conceivable to partially replace the grounding device.
Furthermore, the depth of embedment is calculated according to the soil quality and the underground water condition of the project site, generally 0.5-2.0 m, and the calculation principle is that the sum of the soil weight or the friction force on the anchoring system and the self weight of the anchoring system is larger than the pulling force borne by the connecting piece.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art are briefly introduced below; it is obvious that the drawings in the following description are some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
Fig. 1 is a schematic structural diagram of a device for preventing a purlin from being unstable due to wind suction for a photovoltaic bracket according to an embodiment of the present invention;
fig. 2 is a schematic side view of a device for preventing a purlin from being unstable due to wind suction for a photovoltaic bracket according to an embodiment of the present invention;
fig. 3 is a schematic top view of a device for preventing a purlin from being unstable due to wind suction for a photovoltaic bracket according to an embodiment of the present invention;
in fig. 1 to 3, 1, connecting rods; 2. a connecting member; 3. and (4) an anchoring piece.
Detailed Description
In order to make the purpose, technical effect and technical solution of the embodiments of the present invention clearer, the following description, with reference to the drawings in the embodiments of the present invention, clearly and completely describes the technical solution in the embodiments of the present invention; obviously, the described embodiments are some of the embodiments of the present invention. Based on the embodiments disclosed in the present invention, other embodiments obtained by a person skilled in the art without creative efforts shall fall within the protection scope of the present invention.
Referring to fig. 1 to 3, an apparatus for preventing a purlin from being unstable by wind suction for a photovoltaic bracket according to an embodiment of the present invention includes: the connecting rod piece 1, the connecting piece 2 and the anchoring piece 3 are connected; the number of the connecting rod pieces 1, the connecting pieces 2 and the anchoring pieces 3 is several.
Every connecting rod piece 1 all is used for installing the purlin downside at the photovoltaic module support.
Each connecting rod piece 1 is fixedly connected with a connecting piece 2; preferably, the number of the connecting members 2 is two, and the connecting members are symmetrically arranged on the connecting rod member 1. Preferably, the connecting piece 2 is a steel strand, a steel wire or a steel bar, the steel strand can adopt 1x3 strands or 1x7 strands, and the nominal diameter is 3-6 mm; the steel wire can be 3-7 mm; the steel bar can be round steel or deformed steel bar with the thickness of 6-10 mm; the stress range of the connecting piece 2 is calculated according to the wind suction force of different project places, and the stress of a single piece is about 5-20 kN.
The free ends of the connecting pieces 2 of the connecting rod pieces 1 of every 2-3 spans of the photovoltaic module support are connected to one anchoring piece 3; the anchoring piece 3 is anchored underground, and the depth of the embedding is determined by calculation. The burying depth is calculated according to the conditions of soil quality and underground water of a project site, generally 0.5-2.0 m, and the calculation principle is that the sum of the soil weight or the friction force on the anchoring system and the self weight of the anchoring system is larger than the pulling force borne by the connecting piece 2.
Preferably, the connecting rod member 1 may be a thin-walled or non-thin-walled angle steel, a T-shaped steel or a channel steel, a steel member having an open cross section, or an aluminum member having a closed cross section.
Preferably, the anchoring system can be a block-shaped object (a rectangular anchoring block is buried in the soil and the buried depth is about 0.5-2.0 meters), or an elongated object (an anchoring pile such as a steel pile with a helical blade and the length is 1-2 meters); in summary, it is calculated to be able to withstand wind suction in an upward direction.
The utility model discloses a theory of operation: the device of the utility model utilizes the dead weight of the anchoring part and the weight of the soil on the anchoring part to offset the upward force generated by the wind suction force, and can prevent the purlin from generating instability on the lower side of the section; the purline calculation is completely controlled by the strength of the wind pressure, so that the effect of fully exerting the strength of the section is achieved; and further the section of the purline can be greatly reduced or the distance between the upright posts can be greatly enlarged, thereby achieving the double effects of saving steel and reducing the foundation.
The utility model discloses a prevent device that purlin received wind suction unstability for photovoltaic support, include: a connecting rod piece is additionally arranged below the bracket purline of each span, and the connecting rod piece can be a steel member with various section shapes such as thin-wall or non-thin-wall angle steel, T-shaped steel or channel steel and the like, and also can be an aluminum member or a material of fiber reinforced plastics; the connecting rod piece is connected with the lower part of the purline at the middle part of the purline span by adopting a bolt; the connecting rod piece is welded with a hanging ring, one side of a steel strand, a thin steel bar and the like is connected to the connecting rod piece through a wedge-shaped clamp, and the other side of the steel strand, the thin steel bar and the like is connected to the anchoring piece; the anchoring piece can be a block object such as a cement block and a concrete block, and can also be a slender object such as a tree root pile and a spiral pile, and the anchoring piece can be buried under the soil according to calculation, and can counteract the upward force caused by the wind suction force by utilizing the self weight of the anchoring system and the weight of the soil on the anchoring system. The instability of the lower side of the cross section caused by wind suction can not occur to the purline of the photovoltaic support, the instability of the upper side of the purline can not occur due to the fact that the photovoltaic assembly plate is firmly connected with the purline, the purline can be designed to be completely calculated according to strength, the instability is not required to be considered, and the strength of the material is fully exerted. After high-strength steel (Q390 or Q420) is adopted, the section of the purline can be greatly reduced or the space between the upright posts can be greatly enlarged, so that the double effects of saving the steel and reducing the foundation are achieved.
In summary, the utility model is a device which is used on the bracket of the photovoltaic module and can prevent the purlin from being unstable due to wind and suction force; the method specifically comprises the following steps: a connecting rod piece is arranged under each span of purlines along the vertical direction, and a connecting system of two very thin steel strands, thin steel bars or other materials is connected under each rod piece; every 2-3 spans of connecting systems (steel strands or thin steel bars) are connected to an anchoring system, the anchoring system is anchored underground, and the embedding depth is determined by calculation. The self weight of the anchoring system and the weight of soil on the anchoring system are utilized to offset the upward force generated by the wind suction force, so that the purlines can not generate instability on the lower side of the section, and the effect of fully exerting the strength of the section is achieved. The embodiment provides a device for preventing purlin from being subjected to wind and having suction instability, and is suitable for photovoltaic supports using the purlins under photovoltaic assemblies in various photovoltaic power stations.
The above embodiments are only used to illustrate the technical solution of the present invention and not to limit the same, although the present invention is described in detail with reference to the above embodiments, those skilled in the art can still modify or equally replace the specific embodiments of the present invention, and any modification or equivalent replacement that does not depart from the spirit and scope of the present invention is within the protection scope of the claims of the present invention.
Claims (10)
1. The utility model provides a photovoltaic module support is used for preventing that purlin receives wind suction unstability's device which characterized in that includes: the connecting rod piece (1), the connecting piece (2) and the anchoring piece (3) are connected;
the number of the connecting rod pieces (1) is multiple; the connecting rod piece (1) is fixedly arranged on the lower side of a purline of each span of the photovoltaic module bracket;
the number of the connecting pieces (2) is multiple; one end of each connecting piece (2) is connected with the connecting rod piece (1), and the other end of each connecting piece is connected with the anchoring piece (3);
the number of the anchoring pieces (3) is multiple; the anchoring piece (3) is used for anchoring underground;
wherein, the connecting piece (2) of the connecting rod piece (1) of 2 ~ 3 strides in the photovoltaic module support is connected in an anchor assembly (3).
2. The device for preventing the purlins from being unstabilized by wind suction force of the photovoltaic module bracket according to claim 1, wherein two connecting pieces (2) are connected to each connecting rod piece (1); the two connecting pieces (2) are symmetrically arranged on the connecting rod piece (1).
3. The device for preventing the purlins from being unstabilized by wind suction of the photovoltaic module bracket according to claim 1, wherein the connecting rod member (1) is a channel steel, an angle steel, a T-shaped steel or a cold-formed thin-walled steel.
4. The device for preventing the purlins from being unstabilized by wind suction of the photovoltaic module bracket according to claim 1, wherein the connecting pieces (2) are steel strands or steel bars.
5. The device for preventing the purlins from being unstabilized by wind suction of the photovoltaic module bracket according to claim 1, wherein the anchoring pieces (3) are anchoring blocks or anchoring piles.
6. The device for preventing the purlins from being unstabilized by wind suction of the photovoltaic assembly bracket according to claim 1, wherein the connecting rod piece (1) is provided with a hanging ring, and the connecting piece (2) is provided with a wedge-shaped clamp; the wedge-shaped clamp is connected with the hanging ring.
7. The device for preventing the purlins from being unstabilized by wind suction of the photovoltaic assembly bracket according to claim 1, wherein the depth of the anchoring piece (3) buried underground is in the range of 0.5-2.0 m.
8. The utility model provides a photovoltaic module support, includes a plurality of purlins of striding, its characterized in that still includes: the device for preventing the purlins from being destabilized by wind suction force of any one of claims 1 to 7;
in the photovoltaic module bracket, purlines of each span are cold-formed thin-wall section steel;
the device for preventing the purlins from being unstabilized by wind suction comprises a connecting rod piece (1) and a device for preventing the purlins from being unstabilized by wind suction, wherein the connecting rod piece (1) is fixedly arranged on the lower side of each span of the purlins, and the axis of the connecting rod piece (1) is perpendicular to the axis of the purlins.
9. The photovoltaic module support according to claim 8, wherein the connecting rods (1) are fixedly mounted on each span of purlins through bolts.
10. The photovoltaic module bracket according to claim 8, characterized in that the connecting rod (1) of the device for preventing the purlins from being unstable by wind suction is fixedly arranged at the midspan part of each purlin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921825588.9U CN210927516U (en) | 2019-10-28 | 2019-10-28 | Photovoltaic module support and device for preventing purlin from being unstable due to wind-borne suction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921825588.9U CN210927516U (en) | 2019-10-28 | 2019-10-28 | Photovoltaic module support and device for preventing purlin from being unstable due to wind-borne suction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210927516U true CN210927516U (en) | 2020-07-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921825588.9U Active CN210927516U (en) | 2019-10-28 | 2019-10-28 | Photovoltaic module support and device for preventing purlin from being unstable due to wind-borne suction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210927516U (en) |
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2019
- 2019-10-28 CN CN201921825588.9U patent/CN210927516U/en active Active
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