A fixing method of a small power station support on a roof

Abstract

The present invention relates to the technical field of photovoltaic power generation systems. More specifically, it relates to a method for fixing a small power station support on a roof. The key points of its technical solution are as follows: level the small power station support, the main cable and the auxiliary cable pass through the small power station support longitudinally and horizontally respectively. The anchor bolt plates are located at both ends of the main cable and both ends of the auxiliary cable. A cable sleeve is provided at one end anchor bolt plate. One end of the main cable or the auxiliary cable is sleeved on the other end anchor bolt plate, and then the main cable is connected to the cable sleeve or the auxiliary cable is connected to the cable sleeve by using a turnbuckle. The main cable or the auxiliary cable is fastened to the small power station support by using a right-angle U-shaped clamp, and the intersection of the main cable and the auxiliary cable is fastened by using a cross head. For the guy cables located at the passage position, red reflective paint needs to be sprayed for warning markings. The method for fixing a small power station support on a roof according to the present invention enables the small power station support to be more stably fixed on the roof through a flexible fixing method, ensuring the use safety and meeting the wind load requirements.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic power generation systems, and in particular to a method for fixing a small power station support on a roof. Background Art

[0002] A photovoltaic power generation system, abbreviated as PV, refers to a power generation system that directly converts solar radiation energy into electrical energy by using the photovoltaic effect of photovoltaic cells. A photovoltaic power generation system is composed of equipment such as a solar cell array, a battery pack, a charge and discharge controller, an inverter, an AC power distribution cabinet, and a solar tracking control system.

[0003] The solar cell array is also called a small power station. One of its installation forms is to be fixed on the roof of a building through a small power station support. In order to enable the small power station to better cope with strong wind weather such as typhoon days and heavy rain days, as well as to cope with the environment under other harsh conditions, it is necessary to fix the small power station support more stably on the roof, so as to ensure the use safety of the small power station. For this reason, the inventor has proposed a method for fixing a small power station support on a roof. Summary of the Invention

[0004] In order to fix the small power station support more stably on the roof and ensure the use safety of the small power station, the present application provides a method for fixing a small power station support on a roof.

[0005] The method for fixing a small power station support on a roof provided by the present application adopts the following technical solutions:

[0006] A method for fixing a small power station support on a roof includes the following steps:

[0007] S1: Level the small power station support on the roof;

[0008] S2: Determine the positions of the cable stays and the anchor bolt plates;

[0009] S3: Lay out the cable stays. The cable stays are divided into main cables, auxiliary cables and cable sleeves. Pass the main cable and the auxiliary cable through the small power station support respectively, and make the main cable and the auxiliary cable perpendicular to each other;

[0010] S4: Fix the anchor bolt plates, which are located at both ends of the main cable and both ends of the auxiliary cable respectively;

[0011] S5: Set a cable sleeve on one end anchor bolt plate. One end of the main cable or the auxiliary cable is sleeved on the other end anchor bolt plate, and then use a turnbuckle to connect the main cable with the cable sleeve or connect the auxiliary cable with the cable sleeve;

[0012] S6: Use a right-angle U-shaped clamp to fasten the main cable or the auxiliary cable on the small power station support, and use a cross head to fasten the intersection of the main cable and the auxiliary cable;

[0013] S7: Set counterweights beside the small power station bracket. The counterweights and the cable passing through the small power station bracket are fastened by nuts and R-shaped cards.

[0014] S8: For the cables located at the passage position, red reflective paint needs to be sprayed for warning signs.

[0015] By adopting the above technical solutions, the anchoring force of the cable is transmitted to the small power station bracket, forming a pressure on the small power station. Through the flexible fixing method, the small power station bracket is more stably fixed on the roof, ensuring the use safety and meeting the wind load requirements.

[0016] Preferably, the setting process of the cable sleeve in S5 is as follows: One end of the cable head of the cable is wound around the anchor bolt plate and then fastened together with the other end of the cable head through a cable clamp to form a cable sleeve.

[0017] The sleeving process of the main cable or auxiliary cable in S5 is: One end of the cable head of the cable is wound around the anchor bolt plate and then fastened together with the cable body through a cable clamp to form a cable joint. Before fastening, the cable is tightened by a wire tightener.

[0018] In S5, the cable head at one end of the main cable or auxiliary cable away from the anchor bolt plate it is sleeved on is also fastened together with the cable body through a cable clamp to form a cable joint. Before fastening, the cable is tightened by a wire tightener.

[0019] By adopting the above technical solutions, the rapid and stable connection between the main cable and the cable sleeve, and between the auxiliary cable and the cable sleeve is realized. Among them, the turnbuckle can effectively play the role of adjusting the cable tension.

[0020] Preferably, the anchor bolt plate used in S5 is equipped with channel steel. There are two round steels spaced along the length direction inside the channel steel. When setting the cable sleeve and sleeving the main cable and auxiliary cable, the cable head penetrates from the inside of the bottom round steel of the anchor bolt plate, passes upward through the inside of the top round steel along the channel steel, then turns back downward from the outside and passes out from the inside of the bottom round steel.

[0021] By adopting the above technical solutions, the cable sleeve, the main cable and the auxiliary cable are all stably sleeved on the anchor bolt plate.

[0022] Preferably, in S2, according to the layout position of the cable, determine the installation position of the anchor bolt plate at the corresponding roof and parapet wall corner, determine the bolt hole positions, ensure that the waterproof layer of the roof is not damaged, ensure that the cable is parallel to the roof after passing through the anchor bolt plate, ensure that the height of the cable can pass through the small power station bracket. If the parapet wall is a masonry structure, the anchor bolt plate needs to be fixed on the structural column of the parapet wall.

[0023] By adopting the above technical solutions, it is ensured that the position of the anchor bolt plate is more convenient for the cable to transmit the anchoring force to the small power station bracket, and the anchor bolt plate is prevented from damaging the important structure and weak structure of the roof.

[0024] Preferably, before fixing the anchor bolt plate, a pull-out test of the expansion bolt shall be conducted at the fixing position of the anchor bolt plate, and the final configuration plan of the cable and the anchor bolt plate shall be determined according to the results of the pull-out test.

[0025] By adopting the above technical solution, it is ensured that a stable anchoring force can be provided after the anchor bolt plate is fixed.

[0026] Preferably, the tightening degree of the cable clamp shall be based on the cable being flattened by at least 1 / 3, and the U-shaped ring of the cable clamp shall be in contact with the cable head.

[0027] By adopting the above technical solution, the locking effect of the cable clamp on the cable joint is improved.

[0028] Preferably, a safety bend can be provided between two cable clamps at the outer end of the cable near the cable head.

[0029] By adopting the above technical solution, when the cable joint slides, the safety bend can visually present the sliding result, so that corresponding treatment measures can be taken in a timely manner.

[0030] Preferably, in S4, according to the opening position of the anchor bolt plate, use an impact drill to drill corresponding bolt holes at the fixing position of the anchor bolt plate. The depth of the drilled bolt holes shall be 5 mm deeper than the length of the expansion tube. Then, remove the floating ash in the bolt holes, put in the expansion bolt, pass the anchor bolt plate through the expansion bolt and press it tightly against the wall, and finally tighten the nut.

[0031] By adopting the above technical solution, the fixing of the anchor bolt plate can be quickly realized.

[0032] In summary, the present application includes at least one of the following beneficial technical effects:

[0033] 1. The anchoring force of the cable is transmitted to the small power station bracket, forming a pressure on the small power station. Through the flexible fixing method, the small power station bracket is more stably fixed on the roof, ensuring the use safety and meeting the wind load requirements;

[0034] 2. Quick and stable connections are achieved between the main cable and the cable sleeve, and between the auxiliary cable and the cable sleeve. Among them, the turnbuckle can effectively play the role of adjusting the cable tension;

[0035] 3. The cable sleeve, the main cable and the auxiliary cable are all stably sleeved on the anchor bolt plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 is a flowchart of the reinforcement method in the embodiment of the present application;

[0037] Figure 2 is a top view of the small power station bracket on the roof in the embodiment of the present application;

[0038] Figure 3It is the structural diagram among the anchor bolt plate, cable sleeve and main cable in the embodiment of the present application;

[0039] Figure 4 It is the structural diagram between the anchor bolt plate and the main cable in the embodiment of the present application;

[0040] Figure 5 It is the structural diagram among the small power station support, main cable and auxiliary cable in the embodiment of the present application.

[0041] Explanation of reference numerals: 1, parapet wall; 2, small power station support; 21, main beam; 22, cushion beam; 3, anchor bolt plate; 31, channel steel; 32, round steel; 41, main cable; 42, auxiliary cable; 43, cable sleeve; 5, turnbuckle; 6, cable clamp; 7, right-angle U-shaped clamp; 8, crosshead; 9, counterweight. Detailed implementation manners

[0042] The following is a further detailed description of the present application in conjunction with the attached Figures 1-5 drawings.

[0043] The embodiment of the present application discloses a fixing method of a small power station support on a roof. Referring to Figures 1 to 5 the drawings, an anchoring force is generated by using the anchor bolt plate 3 and the cable, and then the cable is fastened to the small power station support 2, so that the anchoring force is transmitted to the small power station support 2, forming a pressure on the support, thereby making the small power station support 2 more stably fixed on the roof. Specifically, the reinforcement method of the small power station support 2 on the roof includes the following steps:

[0044] I. Pull-out test:

[0045] Before fixing the anchor bolt plate 3, a pull-out test of the expansion bolt at the fixing position of the anchor bolt plate 3 needs to be carried out, and then the final configuration scheme of the cable and the anchor bolt plate 3 is determined according to the pull-out test result to ensure that a stable anchoring force can be provided after the anchor bolt plate 3 is fixed.

[0046] II. Carry out reinforcement:

[0047] S1: Level the small power station support 2 on the roof. If there is a height difference of 5 cm or more in the small power station support 2, the small power station support 2 should be leveled with a rubber pier first.

[0048] S2: Determine the positions of the cable stay and the anchor bolt plate 3. Specifically, according to the layout plan and area of the small power station support 2, and in combination with the installation schematic diagram of the cable stay layout, determine the position of the cable stay. Then, according to the layout position of the cable stay, determine the installation position of the anchor bolt plate 3 at the corner of the corresponding roof and the parapet wall 1, and determine the bolt hole positions to ensure that the waterproof layer of the roof is not damaged, thereby avoiding damage to the important structure of the roof by the anchor bolt plate 3. Immediately afterwards, ensure that the cable stay is parallel to the roof after passing through the anchor bolt plate 3, and ensure that the height of the cable stay can pass through the small power station support 2, so as to ensure that the position of the anchor bolt plate 3 is more convenient for the cable stay to transfer the anchoring force to the small power station support 2. In addition, if the parapet wall 1 is a masonry structure, the anchor bolt plate 3 needs to be fixed on the construction column of the parapet wall 1 to avoid damage to the weak structure of the roof by the anchor bolt plate 3.

[0049] S3: Lay out the cable stay. The cable stay is divided into a main cable 41, an auxiliary cable 42 and a cable sleeve 43. Among them, the main cable 41 passes horizontally under the main beam 21 of the small power station support 2, and the auxiliary cable 42 passes longitudinally above the cushion beam 22 of the small power station support 2, so that the main cable 41 and the auxiliary cable 42 pass through the small power station support 2 respectively, and the main cable 41 and the auxiliary cable 42 are perpendicular to each other.

[0050] S4: Fix the anchor bolt plate 3. The anchor bolt plates 3 are located at both ends of the main cable 41 and both ends of the auxiliary cable 42 respectively. Specifically, according to the opening positions of the anchor bolt plate 3, use a percussion drill to drill corresponding bolt holes at the fixed positions of the anchor bolt plate 3. The depth of the drilled bolt holes is 5 mm deeper than the length of the expansion tube. Then, remove the floating ash in the bolt holes, put in the expansion bolts, and then pass the anchor bolt plate 3 through the expansion bolts and close it tightly against the wall. Finally, tighten the nuts to quickly fix the anchor bolt plate 3. Among them, waterproof treatment needs to be done after the expansion bolts are placed in the bolt holes and after the expansion bolts are passed through by the anchor bolt plate 3. In this embodiment, the waterproof treatment process is: apply waterproof glue after the expansion bolts are placed in the bolt holes, and add an anti-aging rubber pad between the anchor bolt plate 3 and the fastening nut.

[0051] S5: Set a cable socket 43 on one end anchor bolt plate 3. One end of the main cable 41 or the accessory cable 42 is sleeved on the other end anchor bolt plate 3, and then use the turnbuckle 5 to connect the main cable 41 with the cable socket 43 or connect the accessory cable 42 with the cable socket 43. Among them, the setting process of the cable socket 43 is as follows: One end cable head of the stay cable passes through the anchor bolt plate 3 and is fastened together with the other end cable head through the cable clip 6 to form the cable socket 43 for the one end of the turnbuckle 5 to butt. It should be noted that the cable clip 6 is the wire rope clip. The sleeving process of the main cable 41 or the accessory cable 42 is: One end cable head of the stay cable passes through the anchor bolt plate 3 and is fastened together with the cable body through the cable clip 6 to form a cable joint. Before fastening, use the wire tightener to tighten the stay cable. Further, one end cable head of the main cable 41 or the accessory cable 42 away from the anchor bolt plate 3 it is sleeved on is also fastened together with the cable body through the cable clip 6 to form a cable joint. Before fastening, also use the wire tightener to tighten the stay cable. The cable joint formed here is for the one end of the turnbuckle 5 to butt, so as to realize the quick and stable connection between the main cable 41 and the cable socket 43, and between the accessory cable 42 and the cable socket 43. The turnbuckle 5 can effectively play the role of adjusting the tension of the stay cable.

[0052] Specifically, the used anchor bolt plate 3 has a channel steel 31, and there are two round steels 32 spaced along the length direction inside the channel steel 31. When setting the cable socket 43 and sleeving the main cable 41 and the accessory cable 42, the cable head penetrates from the inner side of the bottom round steel 32 of the anchor bolt plate 3, passes upward through the inner side of the top round steel 32 along the channel steel 31, then turns back downward from the outside, and then passes out from the inner side of the bottom round steel 32, so that the cable socket 43, the main cable 41 and the accessory cable 42 are all stably sleeved on the anchor bolt plate 3.

[0053] In order to improve the locking effect of the cable clip 6 on the cable joint, the tightening length of the cable clip 6 is based on that the stay cable is at least flattened by 1 / 3, and the U-shaped ring of the cable clip 6 needs to contact the cable head. In addition, a safety bend can be set between two cable clips 6 near the outer end of the cable head. The distance between the two cable clips 6 needs to be greater than 500 mm to provide space for the formation of the safety bend. When the cable joint slides, the safety bend can visually present its sliding result, so as to take treatment measures in time.

[0054] S6: Use the right-angle U-shaped clamp 7 to fasten the main cable 41 on the small power station support 2, and use the cross head 8 to fasten the intersection of the main cable 41 and the accessory cable 42. In other embodiments, the intersection of the main cable 41 and the accessory cable 42 can also be fastened with metal straps.

[0055] S7: Set a counterweight 9 beside the small power station support 2. In this embodiment, the counterweight 9 is a 25 kg concrete pier, and the counterweight 9 and the stay cable passing through the small power station support 2 are fastened by nuts and R-shaped cards.

[0056] S8: To prevent the cable from tripping people, for the cables located in the passageway, red reflective paint needs to be sprayed for warning signs. In other embodiments, a red conduit can be put on the cable sleeve 43 for warning signs.

[0057] Through the above method, the anchoring force of the cable is transmitted to the small power station bracket, forming a pressure on the small power station. By means of flexible fixing, the small power station bracket is more stably fixed on the roof, ensuring the use safety and meeting the wind load requirements. It should be noted that during the actual implementation process, the positions, quantities of the anchor bolt plates and the layout of the cables can be adjusted according to the wind pressure, wind speed and building height in different regions, so as to design a reasonable fixing structure for the small power station bracket to meet the wind resistance requirements.

[0058] The above are all the preferred embodiments of this application. The protection scope of this application is not limited hereby. Therefore, all equivalent changes made according to the structure, shape and principle of this application shall be covered within the protection scope of this application.

Claims

1. A fixing method for a small power station bracket on a roof, characterized in that, It includes the following steps: S1: Level the small power station support (2) on the roof; S2: Determine the positions of the cable stays and the anchor bolt plates (3); S3: Lay out the cable stays. The cable stays are divided into main cables (41), auxiliary cables (42) and cable sleeves (43). Pass the main cables (41) and the auxiliary cables (42) through the small power station support (2) respectively, and make the main cables (41) and the auxiliary cables (42) perpendicular to each other; S4: Fix the anchor bolt plates (3). The anchor bolt plates (3) are located at both ends of the main cable (41) and both ends of the auxiliary cable (42) respectively; S5: Set the cable sleeve (43) on one end anchor bolt plate (3). One end of the main cable (41) or the auxiliary cable (42) is sleeved on the other end anchor bolt plate (3), and then use the turnbuckle (5) to connect the main cable (41) with the cable sleeve (43) or connect the auxiliary cable (42) with the cable sleeve (43); S6: Use the right-angle U-shaped clamp (7) to fasten the main cable (41) or the auxiliary cable (42) on the small power station support (2), and use the cross head (8) to fasten the intersection of the main cable (41) and the auxiliary cable (42); S7: Set the counterweight block (9) beside the small power station support (2). The counterweight block (9) and the cable stays passing through the small power station support (2) are fastened by nuts and R-shaped cards; S8: For the cable stays located at the passage position, red reflective paint needs to be sprayed for warning signs.

2. The fixing method of a small power station support on a roof according to claim 1, characterized in that: The setting process of the cable sleeve (43) in S5 is as follows: One end cable stay head of the cable stay is wound around the anchor bolt plate (3) and then fastened together with the other end cable stay head through the cable stay clamp (6) to form the cable sleeve (43); The sleeving process of the main cable (41) or the auxiliary cable (42) in S5 is as follows: One end cable stay head of the cable stay is wound around the anchor bolt plate (3) and then fastened together with the cable body through the cable stay clamp (6) to form a cable stay joint. Before fastening, use a wire tightener to tighten the cable stay; In S5, one end cable stay head of the main cable (41) or the auxiliary cable (42) far from the anchor bolt plate (3) it is sleeved on is also fastened together with the cable body through the cable stay clamp (6) to form a cable stay joint. Before fastening, use a wire tightener to tighten the cable stay.

3. A fixing method of a small power station bracket on a roof according to claim 2, characterized in that: The anchor bolt plate (3) used in S5 is provided with a channel steel (31). There are two round steels (32) spaced along the length direction inside the channel steel (31). When setting the cable sleeve (43) and sleeving the main cable (41) and the auxiliary cable (42), the cable stay head penetrates from the inner side of the bottom round steel (32) of the anchor bolt plate (3), passes upward through the inner side of the top round steel (32) along the channel steel (31), then turns back downward from the outside, and then penetrates from the inner side of the bottom round steel (32).

4. The fixing method of a small power station support on a roof according to claim 1, characterized in that: In S2, according to the layout position of the cable stays, determine the installation position of the anchor bolt plate (3) at the corresponding roof and parapet wall (1) fold angle, determine the bolt hole positions, ensure that the waterproof layer of the roof is not damaged, ensure that the cable stays are parallel to the roof after passing through the anchor bolt plate (3), ensure that the height of the cable stays can pass through the small power station support (2). If the parapet wall (1) is a masonry structure, the anchor bolt plate (3) needs to be fixed on the structural column of the parapet wall (1).

5. A fixing method of a small power station bracket on a roof according to claim 1, characterized in that: Before fixing the anchor bolt plate (3), it is necessary to conduct an expansion bolt pull-out test on the fixing place of the anchor bolt plate (3), and then determine the final configuration plan of the cable stays and the anchor bolt plate (3) according to the pull-out test results.

6. The fixing method of a small power station bracket on a roof according to claim 3, characterized in that: The tightening degree of the cable socket head (6) is based on the cable being flattened by at least 1 / 3, and the U-shaped ring of the cable socket head (6) needs to be in contact with the cable head.

7. A fixing method of a small power station bracket on a roof according to claim 6, characterized in that: A safety bend can be provided between the two cable socket heads (6) of the cable near the outer end of the cable head.

8. The fixing method of a small power station bracket on a roof according to claim 4, characterized in that: In S4, according to the opening positions of the anchor bolt plate (3), use an impact drill to drill corresponding bolt holes at the fixed positions of the anchor bolt plate (3). The depth of the drilled bolt holes is 5 mm deeper than the length of the expansion tube. Then, remove the floating ash in the bolt holes, put in the expansion bolts, pass the anchor bolt plate (3) through the expansion bolts and press it tightly against the wall, and finally tighten the nuts.

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