Airport photovoltaic cable trench and drainage ditch integrated structure

Abstract

The utility model discloses an integrated structure of an airport photovoltaic cable trench and a drainage trench, relates to the field of airport photovoltaic facilities, and aims to solve the problem that the waterproof effect and the protectiveness of a buried cable are insufficient when a drainage trench and a cable trench in a slope area are arranged together at present. The top of the cable trench body is provided with the protection plate and the filter tank for supporting protection and filtering drainage, the cable trench is internally provided with the protection plate and filled with backfill soil, the buried cable in the cable trench is protected, the waterproof performance of a buried cable distribution area is ensured, the protection effect on the buried cable is improved, and the requirement for long-term stable operation of the buried cable is met.

Description

Technical Field

[0001] The utility model relates to the field of airport photovoltaic facilities, in particular to an integrated structure of a cable trench and a drainage trench for airport photovoltaics. Background Art

[0002] Airport photovoltaics are centralized photovoltaic projects that utilize the construction sites on airport slopes. Due to clearance restrictions during airport photovoltaic construction, a large number of direct buried cables will be constructed in the photovoltaic area. Traditional direct buried cables often require a large amount of earthwork, which can easily affect the stability of the airport slopes.

[0003] A Chinese patent (Announcement No.: CN210167782U) discloses a prefabricated assembly device integrating cable trenches and drainage trenches. The drainage compartment and cable compartment are built with prefabricated standard sections, and the drainage compartment and cable compartment are isolated. When the drainage structure is built, a cable accommodation space is formed. It can be applied to slope areas to reduce the impact on slope stability, solve the problem of conflict between the layout of drainage facilities and the layout of direct buried cables on site in drainage projects, and ensure that the cable burial depth meets the standards. However, it lacks protection for direct buried cables. After the direct buried cables are laid at the bottom of the cable compartment, the top is covered with gussets and support plates. In the later operation and maintenance process, it is easy to cause deformation or damage to the compartment due to rolling, trampling, etc., affecting the waterproof and protection effect of the cable compartment, and it is difficult to meet the airport slope's demand for long-term operation stability of direct buried cables. Utility Model Content

[0004] The purpose of the utility model is to address the defects of the prior art and to provide an integrated structure of a cable trench and a drainage ditch for airport photovoltaics. The cable trench body and the drainage ditch body are arranged together, a protective plate and a filter trough are arranged on the top of the cable trench body for support and protection and filtering and drainage, a protective plate is arranged in the cable trench and filled with backfill soil, so as to protect the direct buried cables inside the cable trench, ensure the waterproof performance of the direct buried cable distribution area, improve the protection effect of the direct buried cables, and meet the needs of long-term stable operation of the direct buried cables.

[0005] In order to achieve the above purpose, the following technical solutions are adopted:

[0006] An integrated structure of a cable trench and a drainage trench for airport photovoltaics, comprising:

[0007] A drainage ditch body, provided with a drainage trough with an open top;

[0008] The cable trench body is distributed on at least one side of the drainage trench body, and the outer wall of the drainage trench body and the cable trench body together form a cable trench with an open top, and a protection plate spaced apart from the bottom surface of the cable trench is provided in the cable trench, and a space for accommodating direct buried cables is formed between the protection plate and the bottom surface of the cable trench;

[0009] The protection frame is erected on the side walls of the cable trench and the drainage ditch to block the top of the cable trench. A filter trough filled with a gravel layer is formed on the top of the protection frame, and backfill soil is filled between the bottom surface of the protection frame and the protection plate.

[0010] Furthermore, the protection frame includes side baffles, a waterproof top plate and a drainage plate which are sequentially connected to form an H shape, and the parts of the side baffles and the drainage plate extending to the waterproof top plate form a filter tank.

[0011] Furthermore, the drainage board is located on a side of the waterproof top plate close to the drainage groove, and drainage holes are provided on the drainage board segment located above the waterproof top plate.

[0012] Furthermore, the drainage board fits the inner wall of the drainage trough, the side baffle fits the outer wall of the cable trench body, and the drainage hole array is distributed on the drainage board to connect the filter trough and the drainage trough.

[0013] Furthermore, the bottom surface of the waterproof top plate is connected to a first card plate and a second card plate, the first card plate, the side baffle plate and the waterproof top plate form a first card slot with an open bottom, the side wall of the cable trench body is plugged into the first card slot, the drainage board, the second card plate and the waterproof top plate form a second card slot with an open bottom, the side wall of the drainage trench body is plugged into the second card slot.

[0014] Furthermore, the first card plate fits the inner wall of the cable trough, the second card plate fits the outer wall of the cable trough, and the waterproof top plate between the first card plate and the second card plate blocks the top of the cable trough.

[0015] Furthermore, after laying the direct buried cable between the protection plate and the cable trough, a protective layer is filled, and the protective layer is used to form support for the protection plate and backfill soil.

[0016] Furthermore, cable trench bodies are respectively connected to both sides of the drainage trench body, and the cable trench bodies on each side are respectively matched with protection frames.

[0017] Furthermore, the protective frame matched with the cable trench body extends the top of the drainage trough upward, and the open position of the top of the drainage trough after extension is flush with the slope surface of the layout position.

[0018] Furthermore, the top of the gravel layer is flush with the top of the filter tank.

[0019] In order to solve the problem that the current drainage ditch and cable trench in the slope area are arranged together, the utility model adopts the method of arranging the cable trench body and the drainage ditch body together, and a protection plate and a filter trough are arranged on the top of the cable trench body for support protection and filtering drainage. A protection plate is arranged in the cable trench and filled with backfill soil to protect the directly buried cables in the cable trench, thereby ensuring the waterproof performance of the distribution area of ​​the directly buried cables, improving the protection effect of the directly buried cables, and meeting the demand for long-term stable operation of the directly buried cables.

[0020] The utility model can use the protection frame to form a structure to shield the top of the cable trough, use the filter trough at the top to accommodate the gravel layer, and use the drainage holes on the side to drain water, thereby achieving water isolation and water conduction to meet the waterproof requirements. The lower part of the protection frame uses a card slot structure to connect the cable ditch body and the drainage ditch body, thereby improving the stability of the protection frame, and combined with the backfill soil filled in the cable trough, the bearing capacity of the protection frame is improved to meet the bearing requirements during operation and maintenance.

[0021] After the protective frame is used to shield and protect the top of the cable trough, the utility model arranges a drainage board and a crushed stone layer to filter water, thereby reducing impurities entering the drainage trough and improving the smoothness of the operation of the drainage trough. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of an integrated structure of an airport photovoltaic cable trench and a drainage ditch in an embodiment of the utility model, which is set on an airport slope.

[0023] Figure 2 It is a structural schematic diagram of the integrated structure of the airport photovoltaic cable trench and drainage ditch in the embodiment of the utility model.

[0024] Figure 3 This is a schematic diagram of a cable trench body being arranged on one side of a drainage trench body in an embodiment of the utility model.

[0025] Figure 4 This is a schematic diagram of a cable trench body being arranged on the other side of the drainage trench body in an embodiment of the utility model.

[0026] Figure 5 It is a top view schematic diagram of the distribution of the drainage ditch body and the cable ditch body in the embodiment of the utility model.

[0027] Figure 6 It is a schematic diagram of a protection frame in an embodiment of the utility model.

[0028] Explanation of the numbers (in order of first appearance): 1. Cable trench, 2. Drainage ditch, 3. Protection frame, 4. Direct buried cable, 5. Protective layer, 6. Protection plate, 7. Backfill soil, 8. Gravel layer, 101. Side baffle, 102. First pallet, 103. Second pallet, 104. Waterproof top plate, 105. Drainage board. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0030] In the construction of airport photovoltaic power, cable trenches and drainage ditches are two indispensable facilities. The cable trench is used to lay cables to ensure the normal operation of the airport photovoltaic power system; while the drainage ditch is used to collect and discharge rainwater to prevent water accumulation in the airport. However, in traditional airport photovoltaic construction, cable trenches and drainage ditches are often designed separately, which not only increases the construction difficulty and cost, but also causes waste in space utilization. At present, the drainage structure and cable containment structure used for the slope of the airport have the problem of insufficient protection of the cable containment structure, which makes the direct buried cable 4 easily disturbed during the subsequent maintenance process, affecting the operation stability of the direct buried cable 4.

[0031] Based on this, the present embodiment provides an integrated structure of a cable trench and a drainage ditch for airport photovoltaics, in which the cable trench body 1 and the drainage ditch body 2 are arranged together, and a protective frame 3 is arranged above the cable trench body 1, and a crushed stone layer 8 on the upper part of the protective frame 3 is used to form a filtering structure. The cable trough below the protective frame 3 is filled with backfill soil 7 and a protective plate 6 is arranged, thereby increasing the protective effect of the cable trench body 1 on the directly buried cable 4 and realizing long-term and stable operation of the directly buried cable 4.

[0032] See also Figure 1 The integrated structure of the airport photovoltaic cable trench and drainage ditch is distributed on the airport slope, along the longitudinal direction and the transverse slope direction of the slope. Multiple integrated structures of the airport photovoltaic cable trench and drainage ditch can be staggered in the longitudinal and transverse directions to form a mesh structure, such as Figure 5 As shown. By integrating the cable trench 1 and the drainage trench 2, functional integration and optimal use of space are achieved, thereby simplifying the construction process, reducing costs, and improving the utilization efficiency of airport slope facilities.

[0033] In this embodiment, the integrated structure of the cable trench and drainage trench for airport photovoltaic includes a drainage trench body 2, a cable trench body 1 and a protection frame 3. The drainage trench body 2 is provided with a drainage trough with an open top, and the cable trench body 1 is distributed on at least one side of the drainage trench body 2. Figure 3 As shown, the cable trench body 1 is distributed on one side of the drainage trench body 2. Figure 4 As shown, the cable trench 1 is distributed on the other side of the drainage ditch 2. The distribution form of the cable trench 1 can be designed according to the needs. In the case where photovoltaic facilities are only set on one side of the drainage ditch 2, the cable trench 1 can be designed on the side of the drainage ditch 2 close to the photovoltaic facilities. Of course, in the case where photovoltaic facilities are set on both sides of the drainage ditch 2 and direct buried cables 4 need to be laid on both sides of the drainage ditch 2, the cable trench 1 can be set on both sides of the drainage ditch 2.

[0034] The outer wall of the drainage ditch body 2 and the cable ditch body 1 together form a cable trough with an open top. A protective plate 6 is provided in the cable trough and is spaced apart from its bottom surface. A space for accommodating a direct-buried cable 4 is formed between the protective plate 6 and the bottom surface of the cable trough. After the direct-buried cable 4 is arranged in this space, the protective plate 6 is arranged above the direct-buried cable 4 and backfill soil 7 is arranged to protect the direct-buried cable 4.

[0035] The protection frame 3 is erected on the side walls of the cable trench 1 and the drainage ditch 2 to block the top of the cable trench. A filter trough filled with a gravel layer 8 is formed on the top of the protection frame 3. Backfill soil 7 is filled between the bottom surface of the protection frame 3 and the protection plate 6. The backfill soil 7 can provide good support for the overhead area on the bottom surface of the protection frame 3. When the photovoltaic facilities are inspected and maintained, the protection frame 3 can stably support the inspection facilities and maintenance personnel above, thereby avoiding damage to the internal direct buried cables 4.

[0036] The cable trench body 1 is designed on at least one side of the drainage ditch body 2, sharing the side wall and the open space at the top, so that the cable trench and the drainage ditch are integrated. Not only does it save space, but it also makes the layout of airport facilities more compact and improves land utilization. Due to the integrated design of the cable trench and the drainage ditch, the cable trench and the drainage ditch can be excavated and installed at the same time during construction, which greatly simplifies the construction process and shortens the construction period. By reducing the construction volume and material consumption, the integrated structure reduces the construction cost. At the same time, due to the improvement of space utilization, the land occupation cost is reduced.

[0037] In order to further improve the protection of the internal direct buried cable 4, as Figure 2 , Figure 3 and Figure 4 As shown, after laying the direct buried cable 4 between the protection plate 6 and the cable trough, the protective layer 5 is filled, and the protective layer 5 is used to form a support for the protection plate 6 and the backfill soil 7. The direct buried cable 4 is provided with multi-layer protection by the protection frame 3, the backfill soil 7, and the protection plate 6 above the direct buried cable 4, which can effectively protect the cable from damage by the external environment, and the protective layer 5 is used to fill the space between the direct buried cables 4 to maintain the position of the direct buried cables 4 and improve the service life of the cables.

[0038] The filter tank filled with a gravel layer 8 formed on the top of the protection frame 3 can filter rainwater entering the drainage tank from the side and alleviate blockage.

[0039] The integrated structure of the airport photovoltaic cable trench and drainage ditch in this embodiment achieves optimal space utilization and simplified construction by integrating the functions of the cable trench body 1 and the drainage ditch body 2, reduces construction costs, and improves cable protection and drainage filtration functions.

[0040] like Figure 2 and Figure 6As shown, the main body of the protection frame 3 is H-shaped, and the protection frame 3 includes a side baffle 101, a waterproof top plate 104 and a drainage board 105, wherein one side of the waterproof top plate 104 is connected to the side baffle 101, and the other side is connected to the drainage board 105, and the three are connected to form an H-shaped cross-section, and the side baffle 101 and the drainage board 105 extend to the waterproof top plate 104 to form a filter tank, and the filter tank is filled with gravel to form a gravel layer 8.

[0041] In this embodiment, the thickness of the formed gravel layer 8 is not less than 150 mm, and the particle size of the gravel constituting the gravel layer 8 is in the range of 35 mm-55 mm.

[0042] After the water enters the gravel layer 8, the water can be filtered by the gravel layer 8. To facilitate the discharge of the water in the gravel layer 8, the drain board 105 is located on the side of the waterproof top plate 104 close to the drainage groove, and drainage holes are provided on the segment of the drain board 105 located above the waterproof top plate 104. The drain board 105 fits the inner wall of the drainage groove, the side baffle 101 fits the outer wall of the cable trench body 1, and the drainage hole array is distributed on the drain board 105 to connect the filter groove and the drainage groove.

[0043] The side baffle 101 is located outside the cable trench 1 as a mud retaining part. The drain board 105 is attached to the inner wall of the drain trough to prevent the gravel layer 8 from sliding into the drain trough. In order to meet the thickness requirement of the gravel layer 8, the vertical height of the side baffle 101 segment located above the waterproof top plate 104 is not less than 150mm, and the vertical height of the drain board 105 segment located above the waterproof top plate 104 is not less than 150mm. The drainage hole array is distributed within the range of the drain board 105 segment located above the waterproof top plate 104, and the aperture of the drainage hole is configured to be within the range of 30mm-50mm.

[0044] In order to establish a stable connection between the protection frame 3 and the cable trench body 1 and the drainage trench body 2, the bottom surface of the waterproof top plate 104 is connected with the first clamp plate 102 and the second clamp plate 103. The first clamp plate 102, the side baffle plate 101 and the waterproof top plate 104 form a first clamping groove with an open bottom. The side wall of the cable trench body 1 is plugged into the first clamping groove. The drainage board 105, the second clamp plate 103 and the waterproof top plate 104 form a second clamping groove with an open bottom. The side wall of the drainage trench body 2 is plugged into the second clamping groove.

[0045] The first clamp plate 102 fits the inner wall of the cable trough, the second clamp plate 103 fits the outer wall of the cable trough, the waterproof top plate 104 between the first clamp plate 102 and the second clamp plate 103 blocks the top of the cable trough, the horizontal width of the first clamp plate is consistent with the thickness of the side wall of the cable trench body 1, so that the first clamp plate can be just connected to the top of the side wall of the cable trench body 1, and the horizontal width of the second clamp plate is consistent with the thickness of the side wall of the drainage ditch body 2, so that the second clamp plate can be just connected to the top of the side wall of the drainage ditch body 2.

[0046] In this embodiment, the vertical height of the first clamping plate 102, the vertical height of the second clamping plate 103, the vertical height of the section of the side baffle 101 located under the waterproof top plate 104, and the vertical height of the section of the drainage plate 105 located under the waterproof top plate 104 are equal, and the vertical height range is 200mm-300mm. For ease of arrangement, the protection frame 3 can adopt an integrated plastic material structure, set up multiple sections, and spliced ​​in sequence along the extension direction of the drainage groove.

[0047] like Figure 2 As shown, the protective frame 3 matched with the cable trench body 1 extends the top of the drainage trough upward, and the open position of the top of the drainage trough after extension is flush with the slope surface of the layout position, so that the slope water can smoothly enter the drainage trough. The top of the gravel layer 8 is flush with the top of the filter tank, improving the filtering effect of the gravel layer 8.

[0048] In this embodiment, the protection frame 3 can be used to form a structure to shield the top of the cable trough. The upper part uses a filter trough to accommodate the gravel layer 8, and the drainage holes on the side are used for drainage, so as to achieve water isolation and water conduction to meet the waterproof requirements. The lower part of the protection frame 3 uses a slot structure to connect the cable trench body 1 and the drainage ditch body 2 to improve the stability of the protection frame 3. Combined with the backfill soil 7 filled in the cable trench, the bearing capacity of the protection frame 3 is improved to meet the bearing requirements during operation and maintenance.

[0049] In this embodiment, the thickness of the protective layer 5 is not less than 250 mm, the protective plate 6 is a prefabricated plain concrete structure, and the thickness of the backfill soil 7 is not less than 500 mm.

[0050] The above detailed description of the specific implementation of the utility model is only used as an example, and the utility model is not limited to the specific implementation described above. For those skilled in the art, any equivalent modification or substitution of the utility model is also within the scope of the utility model. Therefore, the equalization, modification, improvement, etc. made without departing from the spirit and principle of the utility model should be included in the scope of the utility model.

Claims

1. An integrated structure of a cable trench and a drainage ditch for airport photovoltaics, characterized in that: include: The gutter body is provided with a gutter having an open top; The cable trench body is distributed on at least one side of the drainage trench body, and the outer wall of the drainage trench body and the cable trench body together form a cable trench with an open top, and a protection plate spaced apart from the bottom surface of the cable trench is provided in the cable trench, and a space for accommodating direct buried cables is formed between the protection plate and the bottom surface of the cable trench; The protection frame is erected on the side walls of the cable trench and the drainage ditch to block the top of the cable trench. A filter trough filled with a gravel layer is formed on the top of the protection frame, and backfill soil is filled between the bottom surface of the protection frame and the protection plate.

2. The integrated structure of the airport photovoltaic cable trench and drainage trench as claimed in claim 1, characterized in that: The protection frame comprises a side baffle, a waterproof top plate and a drainage plate which are sequentially connected to form an H shape, and the part of the side baffle and the drainage plate extending to the waterproof top plate forms a filter tank.

3. The integrated structure of the airport photovoltaic cable trench and drainage trench as claimed in claim 2, characterized in that: The drainage board is located on one side of the waterproof top plate close to the drainage groove, and drainage holes are arranged on the drainage board segment located above the waterproof top plate.

4. The integrated structure of the airport photovoltaic cable trench and drainage trench as claimed in claim 3, characterized in that: The drainage board is fitted to the inner wall of the drainage trough, the side baffle is fitted to the outer wall of the cable trench body, and an array of drainage holes is distributed on the drainage board to connect the filter trough and the drainage trough.

5. The integrated structure of the airport photovoltaic cable trench and drainage trench as claimed in claim 2, 3 or 4, characterized in that: The bottom surface of the waterproof top plate is connected to a first card plate and a second card plate. The first card plate, the side baffle plate and the waterproof top plate form a first card slot with an open bottom. The side wall of the cable ditch body is plugged into the first card slot. The drainage plate, the second card plate and the waterproof top plate form a second card slot with an open bottom. The side wall of the drainage ditch body is plugged into the second card slot.

6. The integrated structure of the airport photovoltaic cable trench and drainage trench as claimed in claim 5, characterized in that: The first card plate fits the inner wall of the cable trough, the second card plate fits the outer wall of the cable trough, and the waterproof top plate between the first card plate and the second card plate blocks the top of the cable trough.

7. The integrated structure of the airport photovoltaic cable trench and drainage trench as claimed in claim 1, characterized in that: After laying the direct buried cable between the protection plate and the cable trough, the protection layer is filled to form support for the protection plate and backfill soil.

8. The integrated structure of the airport photovoltaic cable trench and drainage trench as claimed in claim 1, characterized in that: The two sides of the drainage ditch body are respectively connected with cable ditch bodies, and the cable ditch body on each side is respectively matched with a protection frame.

9. The integrated structure of the airport photovoltaic cable trench and drainage trench as claimed in claim 8, characterized in that: The protective frame matched with the cable trench body extends the top of the drainage trough upward, and the open position of the top of the drainage trough after extension is flush with the slope surface of the layout position.

10. The integrated structure of airport photovoltaic cable trench and drainage trench according to claim 1, characterized in that: The top of the gravel layer is flush with the top of the filter tank.

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