CN210518216U - Lightning protection system of photovoltaic building - Google Patents
Lightning protection system of photovoltaic building Download PDFInfo
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- CN210518216U CN210518216U CN201921733366.4U CN201921733366U CN210518216U CN 210518216 U CN210518216 U CN 210518216U CN 201921733366 U CN201921733366 U CN 201921733366U CN 210518216 U CN210518216 U CN 210518216U
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/10—Photovoltaic [PV]
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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 provides a lightning protection system of a photovoltaic building, which comprises a photovoltaic component, a purlin, a water tank, a lightning protection piece and a lightning protection down lead, wherein the photovoltaic component is erected on the water tank, the water tank is arranged between the photovoltaic component and the purlin, the water tank and the purlin are vertically crossed, the lightning protection piece is arranged around the photovoltaic component, wherein the lightning protection members comprise a first lightning protection member and a second lightning protection member, the first lightning protection member is arranged at two ends of the water tank, the second lightning protection member is arranged at two ends of the purlin, the lightning protection downlead is arranged on the lightning protection member, and the lightning protection downlead is connected with the lightning protection grounding grid, so that the photovoltaic assembly, the purline, the water tank, the lightning protection piece and the lightning protection downlead form an integrated lightning protection system, the lightning protection down lead is arranged on the lightning protection part and conducts lightning current to the underground lightning protection grounding grid, so that the lightning protection system of the photovoltaic building achieves a better lightning protection effect.
Description
Technical Field
The utility model relates to a photovoltaic building integration technical field, in particular to lightning protection system of photovoltaic building.
Background
Photovoltaic power generation is a technology of directly converting light energy into electric energy by using the photovoltaic effect of a semiconductor interface. With the gradual maturity of photovoltaic power generation technology, more and more users carry out photovoltaic power generation at the various steel tile roofing installation photovoltaic module in their house.
When photovoltaic power generation is carried out to the installation photovoltaic module, corresponding ground connection lightning protection processing needs to be carried out to the photovoltaic module, however, in the lightning protection measure to the photovoltaic module, consider the photovoltaic module and the building as a whole very little for the lightning protection ability of the photovoltaic module is relatively weak, and once the building part is struck by lightning, the photovoltaic module can be damaged.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a lightning protection system of photovoltaic building has solved current photovoltaic module and has suffered the thunderbolt at the building part, leads to the problem that photovoltaic module destroys.
In order to achieve the above object, the utility model provides a lightning protection system of photovoltaic building, the lightning protection system of photovoltaic building includes:
a photovoltaic module;
a purlin;
the photovoltaic module is erected on the water tank, the water tank is arranged between the photovoltaic module and the purline, and the water tank and the purline are perpendicularly crossed;
the lightning protection members are arranged around the photovoltaic assembly and comprise first lightning protection members and second lightning protection members, the first lightning protection members are arranged at two ends of the water tank, and the second lightning protection members are arranged at two ends of the purline;
the lightning protection downlead, the lightning protection downlead install in on the lightning protection, just the lightning protection downlead is connected with lightning protection grounding net.
Further, the first lightning arrester is arranged along the vertical direction of the water tank, and the second lightning arrester is arranged along the vertical direction of the purlin.
Furthermore, the quantity that the lightning protection downlead set up is a plurality of, every the lightning protection downlead all install in on the lightning protection, and every two is adjacent the interval that sets up between the lightning protection downlead is less than or equal to 25 m.
Furthermore, the lightning protection part and the lightning protection down lead are both galvanized flat steel.
Further, the lightning protection system of photovoltaic building still includes the connecting piece, the quantity that photovoltaic module set up is a plurality of, and is a plurality of photovoltaic module passes through the connecting piece is connected.
Furthermore, the connecting piece comprises a pressing block and a supporting seat, a gap is formed between every two adjacent photovoltaic modules, the pressing block is clamped in the gap, the supporting seat is connected with the pressing block through a bolt, and the photovoltaic modules are pressed on the supporting seat;
wherein, the supporting seat is erected at the notch of the water tank.
Furthermore, the connecting piece further comprises a connecting block, one end of the connecting block is connected with the supporting seat, the other end of the connecting block is connected with the purline, and the water tank is placed on the purline.
Further, the lightning grounding net includes a plurality of vertical grounding poles, and is a plurality of the vertical grounding poles respectively with the lightning down conductor is connected, and adjacent two interval between the vertical grounding poles is greater than or equal to twice of the length of the vertical grounding pole.
Furthermore, the embedded depth of the vertical grounding electrode is more than or equal to 0.8 m.
Further, the vertical grounding electrode is an ARC delta wing grounding rod.
The utility model provides a lightning protection system of photovoltaic building, the lightning protection system of photovoltaic building includes photovoltaic module, purlin, basin, lightning protection and lightning protection downlead, photovoltaic module sets up on the basin, the basin is located between photovoltaic module and the purlin, and the basin is perpendicular cross arrangement with the purlin, lightning protection encircles the photovoltaic module setting, wherein, lightning protection includes first lightning protection and second lightning protection, first lightning protection is installed in the both ends of basin, second lightning protection is installed in the both ends of purlin, lightning protection downlead is installed on lightning protection, and lightning protection downlead is connected with lightning protection ground net, makes photovoltaic module, the purlin, the basin, lightning protection and lightning protection form integrated system, and the lightning protection downlead is arranged on the lightning protection part and conducts lightning current to an underground lightning protection grounding network, so that the lightning protection system of the photovoltaic building achieves a better lightning protection effect.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments or examples of the present invention, the drawings used in the embodiments or examples will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic view of a partial structure of a lightning protection system of a photovoltaic building according to an embodiment of the present invention;
fig. 2 is a schematic connection diagram of a lightning protection system of a photovoltaic building according to an embodiment of the present invention;
fig. 3 is a schematic top view of a lightning protection system of a photovoltaic building according to an embodiment of the present invention;
fig. 4 is a schematic connection diagram of the photovoltaic module, the water tank and the purlin of the embodiment of the present invention;
fig. 5 is a schematic connection diagram of a vertical ground electrode according to an embodiment of the present invention;
fig. 6 is a schematic view illustrating a connection between the centralized box-type inverter and the annular grounding grid according to an embodiment of the present invention.
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
As shown in figures 1-6, the utility model provides a lightning protection system of photovoltaic building.
In an embodiment, as shown in fig. 1 and 2, the lightning protection system of the photovoltaic building includes a photovoltaic module 1, a purlin 2, a water tank 3, a lightning arrester 4, and a lightning protection down conductor 5, where the photovoltaic module 1 is a solar panel and is applied to a solar power generation system, and the photovoltaic module 1 is used for converting solar energy into electric energy. The quantity that photovoltaic module 1 set up is a plurality of, and is a plurality of photovoltaic module 1 interval sets up on the roof to gather solar energy.
Further, the photovoltaic module 1 is installed on the purline 2, the water tank 3 is arranged between the photovoltaic module 1 and the purline 2, and the water tank 3 and the purline 2 are perpendicularly arranged in a cross mode. The purlins 2 are perpendicular to horizontal roof beams of roof trusses or rafters and used for supporting rafters or roofing materials, namely the purlins 2 are used for supporting the photovoltaic modules 1, so that the photovoltaic modules 1 can collect solar energy. The water tank 3 is used for collecting water permeating through the photovoltaic module 1 and discharging the permeated water out of the room. Since the present embodiment uses a plurality of photovoltaic modules 1 as a roof, that is, the water tank 3 is disposed inside the photovoltaic modules 1, so that the infiltration-preventing water can flow into the water tank 3 to be discharged to the outside through the water tank 3.
Furthermore, the number of the water tanks 3 and the purlins 2 is multiple, and the water tanks 3 and the purlins 2 are arranged in a vertical crossing manner, for example, the water tanks 2 are arranged along the east-west direction, and the water tanks 3 are arranged along the north-south direction; alternatively, in other embodiments, the purlins 2 are arranged in the north-south direction, and the troughs 3 are arranged in the east-west direction, which is not limited herein.
Further, the lightning arrester 4 surrounds the photovoltaic module 1, wherein the lightning arrester 4 includes a first lightning arrester 41 and a second lightning arrester 42, the first lightning arrester 41 is installed at two ends of the water tank 3, and the second lightning arrester 42 is installed at two ends of the purlin 2. Wherein, both ends of the water tank 3 extend towards the edge of the roof and extend out of the photovoltaic module 1, and at this time, the first lightning arrester 41 is arranged on the part of the water tank 3 extending out of the photovoltaic module 1; the two ends of the purline 2 extend towards the edge of the roof and extend out of the photovoltaic module 1, and at the moment, the second lightning arrester 42 is arranged on the part of the purline 2 extending out of the photovoltaic module 1, namely, the lightning arrester 4 is arranged around the edge of the photovoltaic module 1 so as to surround the photovoltaic module 1.
Further, the lightning protection downlead 5 is installed on the lightning protection member 4, and the lightning protection downlead 5 is connected with the lightning protection grounding grid. The lightning protection down lead 5 is installed on the first lightning protector 41 and the second lightning protector 42, and the lightning protection down lead 5 is connected with an underground lightning protection grounding grid. Namely, the photovoltaic module 1, the purlin 2, the water tank 3, the lightning arrester 4 and the lightning protection down lead 5 are set into an integrated lightning protection system by the lightning protection system of the photovoltaic building, and the integrated lightning protection system is connected with an underground lightning protection grounding network through the lightning protection down lead 5 and conducts lightning current to the lightning protection grounding network.
Specifically, the lightning current on the photovoltaic module 1 is conducted to the purlin 2 and in the water tank 3, at this time, because the purlin 2 and all be provided with on the water tank 3 the lightning protection member 4, namely the purlin 2 and the lightning current on the water tank 3 can be conducted to on the lightning protection member 4, so as to pass through the lightning protection downlead 5 that is arranged on the lightning protection member 4 conducts the lightning current to the lightning protection grounding network on the ground, so as to reach the lightning protection effect of the photovoltaic module 1. Namely the utility model provides a photovoltaic building's lightning protection system will photovoltaic module 1 purlin 2 basin 3 lightning arrester 4 and lightning protection downlead 5 forms integrated lightning protection system, makes photovoltaic module 1 has good lightning protection effect, can effectually reduce the harm of thunderbolt, for example: direct lightning strikes, inductive lightning strikes and other hazards, so that safe and reliable operation of the photovoltaic module 1 is guaranteed, and safety and stability of the photovoltaic power station are improved.
In an embodiment of the present invention, the lightning protection system of the photovoltaic building comprises a photovoltaic module 1, a purlin 2, a water tank 3, a lightning protection member 4 and a lightning protection down lead 5, the photovoltaic module 1 is installed on the purlin 2, the water tank 3 is arranged between the photovoltaic module 1 and the purlin 2, and the water tank 3 is vertically crossed with the purlin 2, the lightning protection member 4 is arranged around the photovoltaic module 1, wherein the lightning protection member 4 comprises a first lightning protection member 41 and a second lightning protection member 42, the first lightning protection member 41 is arranged at two ends of the water tank 3, the second lightning protection member 42 is arranged at two ends of the purlin 2, the lightning protection down lead 5 is arranged on the lightning protection member 4, and the lightning protection down lead 5 is connected with a lightning protection grounding network, so that the photovoltaic module 1, the purlin 2, the water tank 3, the lightning protection member 4 and the lightning protection down lead 5 form an integrated lightning protection system, the lightning current is conducted to an underground lightning protection grounding network through a lightning protection down lead 5 arranged on the lightning protection part 4, so that a better lightning protection effect of a lightning protection system of the photovoltaic building is achieved; and the lightning protection system of this embodiment photovoltaic building is applied to photovoltaic building integrated's lightning protection, in the lightning protection system of above-mentioned photovoltaic building promptly, directly combines photovoltaic module and building structure, realizes photovoltaic and building integrated setting for photovoltaic module need not support and lightning protection downlead also can directly adopt building structure to set up through the photovoltaic support, and there is not the restriction here.
Further, the first lightning conductor 41 is disposed along a vertical direction of the water tank 3, and the second lightning conductor 42 is disposed along a vertical direction of the purlin 2. The number of the first lightning conductors 41 and the number of the second lightning conductors 42 are two, and two first lightning conductors 41 are arranged along the vertical direction of the water tank 3, that is, two first lightning conductors 41 are arranged in parallel; two second lightning conductors 42 are arranged along the vertical direction of the purlin 2, that is, two second lightning conductors 42 are arranged in parallel.
Further, the first lightning arrester 41 is connected with the water tank 3, the second lightning arrester 42 is connected with the purline 2 through screws or screws, so that the first lightning arrester 41 is connected with the water tank 3, the second lightning arrester 42 is connected with the purline 2 more firmly, and the reliability of lightning current conduction between the first lightning arrester 41 and the water tank 3 and between the second lightning arrester 42 and the purline 2 is ensured.
Further, as shown in fig. 3, the number of the lightning protection downlead 5 is plural, each lightning protection downlead 5 is installed on the lightning protection member 4, and the distance d between every two adjacent lightning protection downleads 5 is less than or equal to 25 m. Wherein, because the lightning arrester 4 includes two first lightning arrester 41 and two second lightning arrester 42, promptly each first lightning arrester 41 and each second lightning arrester 42 all is provided with lightning protection downlead 5. Optionally, in order to reduce the cost, a distance between every two adjacent lightning protection downlead 5 is less than or equal to 25m, so that the installation cost of the lightning protection downlead 5 can be reduced on the premise of ensuring the lightning triggering effect.
Alternatively, the lightning down conductor 5 may be made of, but not limited to, round copper, copper stranded wire, round steel, flat steel, and the like.
Further, the lightning conductor 4 is preferably made of flat steel. Wherein, in order to prevent lightning-arrest 4 is corroded in the external air owing to expose for a long time, leads to the unable condition that satisfies lightning grounding standard of ground resistance, the embodiment of the utility model provides a lightning-arrest 4 adopts the galvanized flat steel.
Further, the lightning protection system of photovoltaic building still includes connecting piece 6, the quantity that photovoltaic module 1 set up is a plurality of, and is a plurality of photovoltaic module 1 passes through connecting piece 6 connects. Namely, the photovoltaic module 1 is connected to the purline 2 through the connecting piece, so that the photovoltaic module 1 is used as a roof of a roof, and the photovoltaic module 1 can collect more solar energy.
Further, as shown in fig. 4, the connecting member 6 includes a pressing block 61 and a supporting seat 62, a gap 11 is formed between two adjacent photovoltaic modules 1, the pressing block 61 is clamped in the gap 11, the supporting seat 62 is connected with the pressing block 61 through a bolt 63, and the photovoltaic modules 1 are pressed on the supporting seat 62; wherein, the supporting seat 62 is erected at the notch of the water tank 3. That is, two adjacent photovoltaic modules 1 are connected through the pressing block 61, and the pressing block 61 is provided with the conductive barbed sheet 611, so that an electrical path is formed between the two photovoltaic modules 1 through the conductive barbed sheet 611, and lightning current can be conducted between the plurality of photovoltaic modules 1.
Further, the supporting base 62 is connected to the pressing block 61 through a bolt 63, and the photovoltaic module 1 is pressed on the supporting base 62. The support seat 62 is in threaded connection with one end of the bolt 63, and the other end of the bolt 63 is in threaded connection with the pressing block 61. Specifically, the pressing block 61 and the supporting seat 62 are both provided with screw holes (not shown), and two ends of the bolt 63 are respectively connected to the screw holes of the pressing block 61 and the supporting seat 62, so that the supporting seat 62 is connected to the pressing block 61. A shockproof pad 621 is disposed at a pressure joint between the photovoltaic module 1 and the support base 62, and the shockproof pad 621 is disposed at the pressure joint between the photovoltaic module 1 and the support base 62, that is, a part of lightning current of the photovoltaic module 1 can be conducted to the support base 62 through the shockproof pad 621.
Further, because the shock pad 621 is located photovoltaic module 1 with between the supporting seat 62, promptly the shock pad 621 accessible the bolt 63 with the supporting seat 62 is connected, at this moment, photovoltaic module 1 crimping in the shock pad 621 deviates from the one end of supporting seat 62, the shock pad 621 is used for supporting photovoltaic module 1 and prevents photovoltaic module 1 vibrations to overall structure's anti-seismic performance has been promoted.
Further, since the supporting base 62 is connected to the pressing block 61, and the photovoltaic module 1 is disposed between the supporting base 62 and the pressing block 61, when the supporting base 62 is tightly connected to the pressing block 61, the photovoltaic module 1 is pressed, and at this time, the photovoltaic module 1 is pressed against the supporting base 62, or, the photovoltaic module 1 is partially pressed against the supporting base 62. Namely, an electrical path is formed between the photovoltaic module 1 and the support base 62 through the pressing block 61 and the bolt 63.
Optionally, the structure of the water tank 3 is at least one of a W-shape, a U-shape, a V-shape or a half-arc shape, in this embodiment, the water tank 3 adopts a U-shape structure, that is, the structure of the support seat 62 in this embodiment is matched, so that the water tank 3 can mount the support seat 62, but in other embodiments, the structure of the water tank 3 may be configured according to the structure of the support seat 62, and is not limited herein.
Further, the connecting piece 6 further comprises a connecting block 64, one end of the connecting block 64 is connected with the supporting seat 62, the other end of the connecting block 64 is connected with the purlin 2, and the water tank 3 is placed on the purlin 2. Wherein, because the supporting seat 62 is erected at the notch of the water tank 3, at this time, the supporting seat 62 extends to the outside of the water tank 3 to form a lug 65. Specifically, one end of the connecting block 64 is connected to the lug 65, the other end of the connecting block 64 is connected to the purlin 2, and the water tank 3 is placed on the purlin 2.
Further, the supporting seat 62 is connected to the purlin 2 through the connecting block 64, and the supporting seat 62 is erected at the notch of the water tank 3, that is, the water tank 3 is disposed between the supporting seat 62 and the purlin 2, and the notch of the water tank 3 faces the supporting seat 62. Therefore, the photovoltaic module 1, the pressing block 61, the supporting base 62, the connecting block 64 and the purlin 2 are connected together to form an electrical path, that is, the photovoltaic module 1, the pressing block 61, the supporting base 62, the connecting block 64 and the purlin 2 form an equipotential connecting structure capable of conducting lightning current.
Further, the connecting block 64 may be, but not limited to, a Z-shaped steel, a C-shaped steel, etc., in this embodiment, the connecting block 64 is made of a Z-shaped steel, but in other embodiments, the connecting block 64 may also be made of other structures, and is not limited herein.
Specifically, lightning current penetrates through an oxide film of an aluminum frame of the photovoltaic module 1 from the aluminum frame through a conductive piercing piece 611 arranged in the pressing block 61, so that the lightning current is conducted into the pressing block 61, at this time, since the pressing block 61 is connected with the supporting base 62 through the bolt 63, that is, the lightning current in the pressing block 61 flows into the supporting base 62 through the bolt 63, and the supporting base 62 flows the lightning current into the purlin 2 through the connecting block 64, so that a complete electrical path is formed. Further, the purlines 2 are connected with a roof grounding grid, and at the moment, lightning current in the purlines 2 can be conducted to the underground through the roof grounding grid, so that the lightning protection effect is achieved.
Further, as shown in fig. 5, the lightning protection grounding grid includes a plurality of vertical grounding electrodes 7, a plurality of the vertical grounding electrodes 7 are respectively connected to the lightning down conductor 5, and the distance between two adjacent vertical grounding electrodes 7 is greater than or equal to twice the length of the vertical grounding electrode 7. Optionally, perpendicular earthing pole 7 with when lightning protection downlead 5 passes through earth connection 8 to be connected, just when earth connection 8 is the galvanized band steel, earth connection 8 with need to carry out two-sided welding between the perpendicular earthing pole 7 and handle, and earth connection 8 with welding length between the perpendicular earthing pole 7 is more than or equal to six times of perpendicular earthing pole 7 diameter to guarantee welded stability and reliability.
Optionally, a welding position of one end of the lightning protection down conductor 5, which is close to the lightning arrester 4, and the lightning protection member 4 is subjected to a zinc plating anti-corrosion treatment, and a welding position of one end of the lightning protection down conductor 5, which is close to the vertical grounding electrode 7, and the vertical grounding electrode 7 is subjected to a zinc plating anti-corrosion treatment, so as to improve the service life of the lightning protection down conductor 5.
Furthermore, the embedded depth of the vertical grounding electrode 7 is greater than or equal to 0.8m, namely the vertical grounding electrode 7 is driven into an area which is greater than or equal to 0.8m away from the ground.
Further, after the lightning protection system of the photovoltaic building is installed, the following conditions need to be met: and the grounding resistance corresponding to each specially-arranged lightning protection down lead is less than or equal to 30 ohms, and when the grounding resistance is greater than 30 ohms, the number of the vertical grounding electrodes 7 is correspondingly increased until the grounding resistance of the lightning protection system of the photovoltaic building is less than or equal to 30 ohms.
Optionally, the vertical ground electrode 7 is an ARC delta-wing ground bar. Of course, in other embodiments, the vertical grounding electrode 7 may also be made of, but not limited to, galvanized angle steel, round copper, and the like, and is not limited herein.
Further, as shown in fig. 6, a collecting box, a string inverter and other devices are further disposed on the roof of the photovoltaic power plant to directly connect the ground terminal to the main ground network of the roof. For example, if the device is a centralized box type inverter, the periphery of the centralized box type inverter needs to be provided with an annular grounding grid 9, galvanized flat steel is adopted as a material of the lightning protection down lead and the horizontal grounding electrode, and at the moment, the lightning protection down lead is reliably connected with the annular grounding grid so as to protect the centralized box type inverter from lightning.
It can be understood that the annular grounding grid needs to meet the requirement that the corresponding grounding resistance is less than or equal to 4 ohms, if the grounding resistance of the annular grounding grid cannot meet the requirement of the resistance value, the method of making the horizontal extension line 10 on the annular grounding grid can be used for reducing the grounding resistance value, and of course, in other embodiments, the grounding resistance value can also be reduced by additionally installing a vertical grounding electrode, adding a resistance reducing agent and the like, so that the grounding resistance of the annular grounding grid meets the requirement of the resistance value.
In an embodiment of the present invention, the lightning protection system of the photovoltaic building comprises a photovoltaic module 1, a purlin 2, a water tank 3, a lightning protection member 4 and a lightning protection down lead 5, the photovoltaic module 1 is erected on the water tank 3, the water tank 3 is arranged between the photovoltaic module 1 and the purlin 2, and the water tank 3 is vertically crossed with the purlin 2, the lightning protection member 4 is arranged around the photovoltaic module 1, wherein the lightning protection member 4 comprises a first lightning protection member 41 and a second lightning protection member 42, the first lightning protection member 41 is arranged at two ends of the water tank 3, the second lightning protection member 42 is arranged at two ends of the purlin 2, the lightning protection down lead 5 is arranged on the lightning protection member 4, and the lightning protection down lead 5 is connected with a lightning protection grounding network, so that the photovoltaic module 1, the purlin 2, the water tank 3, the lightning protection member 4 and the lightning protection down lead 5 form an integrated lightning protection system, so as to conduct the lightning current to the underground lightning protection grounding grid through the lightning protection downlead 5 arranged on the lightning protection member 4, so that the lightning protection system of the photovoltaic module 1 achieves a better lightning protection effect.
The above is only the optional embodiment of the present invention, and not therefore the limit to the patent scope of the present invention, all the concepts of the present invention utilize the equivalent transformation made by the contents of the specification and the drawings, or the direct/indirect application in other related technical fields are included in the patent protection scope of the present invention.
Claims (10)
1. A lightning protection system of a photovoltaic building, the lightning protection system of the photovoltaic building comprising:
a photovoltaic module;
a purlin;
the photovoltaic module is erected on the water tank, the water tank is arranged between the photovoltaic module and the purline, and the water tank and the purline are perpendicularly crossed;
the lightning protection members are arranged around the photovoltaic assembly and comprise first lightning protection members and second lightning protection members, the first lightning protection members are arranged at two ends of the water tank, and the second lightning protection members are arranged at two ends of the purline;
the lightning protection downlead, the lightning protection downlead install in on the lightning protection, just the lightning protection downlead is connected with lightning protection grounding net.
2. The lightning protection system for photovoltaic buildings according to claim 1, wherein the first lightning conductor is disposed along a vertical direction of the water tank, and the second lightning conductor is disposed along a vertical direction of the purlin.
3. The lightning protection system for photovoltaic buildings according to claim 1, wherein the number of the lightning protection downlead is plural, each lightning protection downlead is installed on the lightning protection member, and the distance between every two adjacent lightning protection downleads is less than or equal to 25 m.
4. The lightning protection system of a photovoltaic building according to any one of claims 1 to 3, wherein the lightning protection member and the lightning protection down conductor are both galvanized flat steel.
5. The lightning protection system for photovoltaic buildings according to claim 1, further comprising a plurality of connecting members, wherein a plurality of photovoltaic modules are connected by the connecting members.
6. The lightning protection system for photovoltaic buildings according to claim 5, wherein the connecting member comprises a pressing block and a supporting base, a gap is formed between two adjacent photovoltaic modules, the pressing block is clamped in the gap, the supporting base is connected with the pressing block through a bolt, and the photovoltaic modules are pressed on the supporting base;
wherein, the supporting seat is erected at the notch of the water tank.
7. The lightning protection system of a photovoltaic building according to claim 6, wherein the connecting member further comprises a connecting block, one end of the connecting block is connected to the supporting base, the other end of the connecting block is connected to the purlin, and the water tank is placed on the purlin.
8. The lightning protection system of a photovoltaic building according to claim 1, wherein the lightning protection grounding grid comprises a plurality of vertical grounding electrodes, the vertical grounding electrodes are respectively connected to the lightning down conductor, and the distance between two adjacent vertical grounding electrodes is greater than or equal to twice the length of the vertical grounding electrodes.
9. The lightning protection system of a photovoltaic building according to claim 8, wherein the vertical grounding electrodes are embedded to a depth greater than or equal to 0.8 m.
10. The lightning protection system of a photovoltaic building according to claim 9, wherein the vertical ground electrode is an ARC delta-wing ground bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921733366.4U CN210518216U (en) | 2019-10-15 | 2019-10-15 | Lightning protection system of photovoltaic building |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112599991A (en) * | 2020-12-21 | 2021-04-02 | 上海宝冶集团有限公司 | Photovoltaic support lightning protection grounding structure and installation method |
| CN113957990A (en) * | 2021-11-05 | 2022-01-21 | 中建一局集团建设发展有限公司 | Open field ultrahigh structure lightning protection system and node device |
| CN114991396A (en) * | 2022-06-10 | 2022-09-02 | 中建八局南方建设有限公司 | Solar photovoltaic steel structure lightning protection roof and construction method thereof |
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2019
- 2019-10-15 CN CN201921733366.4U patent/CN210518216U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112599991A (en) * | 2020-12-21 | 2021-04-02 | 上海宝冶集团有限公司 | Photovoltaic support lightning protection grounding structure and installation method |
| CN113957990A (en) * | 2021-11-05 | 2022-01-21 | 中建一局集团建设发展有限公司 | Open field ultrahigh structure lightning protection system and node device |
| CN114991396A (en) * | 2022-06-10 | 2022-09-02 | 中建八局南方建设有限公司 | Solar photovoltaic steel structure lightning protection roof and construction method thereof |
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Address after: 230088 6th floor, R & D center building, no.1699 Xiyou Road, high tech Zone, Hefei City, Anhui Province Patentee after: Sunshine New Energy Development Co.,Ltd. Address before: 230088 6th floor, R & D center building, no.1699 Xiyou Road, high tech Zone, Hefei City, Anhui Province Patentee before: Sunshine New Energy Development Co.,Ltd. Address after: 230088 6th floor, R & D center building, no.1699 Xiyou Road, high tech Zone, Hefei City, Anhui Province Patentee after: Sunshine New Energy Development Co.,Ltd. Address before: 230088 6th floor, R & D center building, no.1699 Xiyou Road, high tech Zone, Hefei City, Anhui Province Patentee before: HEFEI SUNGROW RENEWABLE ENERGY SCI. & TECH. Co.,Ltd. |