Fabricated building photovoltaic roof structure

Abstract

The fabricated building photovoltaic roof structure comprises at least two triangular modules and a trapezoidal module, the triangular modules are distributed on the two sides of the trapezoidal module, the triangular modules and the trapezoidal module are fixedly connected to form a roof truss, a heat preservation layer is laid at the upper end of the roof truss, a purline is arranged between the roof truss and the heat preservation layer, and a support is fixedly connected to the purline. The photovoltaic panel is fixedly connected to the side, away from the heat preservation layer, of the support. The problem that in the prior art, a flat roof photovoltaic assembly formed by splicing box bodies is difficult to install is solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of building roof structures, and in particular relates to an assembled building photovoltaic roof structure. Background Art

[0002] With the strong support of the state for new energy projects, distributed photovoltaics are increasingly used in oil and gas field well sites and building roofs. Prefabricated buildings, with their efficient module combination, conform to the ideas and principles of green buildings and green construction, and are widely used in oil and gas field support point projects. At present, the roof of prefabricated buildings is generally a flat roof spliced ​​with boxes. Each box is equipped with an insulation layer, a waterproof layer and a heat insulation layer on the top, and the roof drainage is carried out by surrounding concealed pipes.

[0003] However, the flat roof with the above-mentioned box splicing has the following disadvantages:

[0004] 1. The flat roof of the box body has poor thermal insulation and heat preservation effects;

[0005] 2. The flat roof of the box body is not drained smoothly and timely, which easily causes rainwater to accumulate;

[0006] 3. The waterproofness and durability of the color steel roof are poor, and the ceiling and wall panels in the room are prone to water seepage.

[0007] There are three main methods for installing photovoltaics on building slope roofs:

[0008] 1. Fix the photovoltaic modules on the roof colored steel tiles by gluing.

[0009] 2. Set up steel brackets on the color steel tiles, and then install and fix the photovoltaic modules on the brackets.

[0010] 3. Aluminum alloy guide rails are used. The guide rails are connected to the roof colored steel tiles through clamps, and the photovoltaic panels are fixed on the guide rails through pressing blocks.

[0011] The above-mentioned slope roof photovoltaic installation method has the following disadvantages:

[0012] 1. The adhesive is easy to age and has poor durability, which will cause the photovoltaic components to move and affect the power generation effect;

[0013] 2. The steel bracket needs to punch holes and glue on the roof color steel tiles, which has high construction requirements, poor anti-leakage performance, and easily causes roof leakage.

[0014] 3. The color steel tile clamp connection is easy to loosen and deform, causing the photovoltaic components to move, and the subsequent inspection and maintenance workload is large. Summary of the invention

[0015] The purpose of the present invention is to provide an assembled building photovoltaic roof structure, which solves the problem of difficulty in installing flat roof photovoltaic components with spliced ​​boxes in the prior art.

[0016] The technical solution adopted by the present invention is an assembled building photovoltaic roof structure, including two triangular modules and one trapezoidal module, the two triangular modules are distributed on both sides of the trapezoidal module, the two triangular modules are fixedly connected to the trapezoidal module to form a roof truss, an insulation layer is laid on the upper end of the roof truss, purlins are arranged between the roof truss and the insulation layer, the purlins are fixedly connected to a bracket, and a photovoltaic panel is fixedly connected to the side of the bracket away from the insulation layer.

[0017] The present invention is also characterized in that:

[0018] The outer surface of the upper end of the thermal insulation layer is paved with a waterproof layer, and the outer surface of the upper end of the waterproof layer is paved with a synthetic resin tile.

[0019] Each prefabricated roof truss consists of two triangular modules and one trapezoidal module. The materials of the triangular modules and the trapezoidal modules are all prefabricated square steel sections, and the module frame installation angle is 15-20°.

[0020] The purlin is fixed on the roof truss by a purlin support plate, the purlin support plate is connected to the purlin by bolts, and a stiffening rib is arranged on the side of the purlin support plate away from the purlin.

[0021] The insulation layer is made of rock wool insulation board.

[0022] The photovoltaic panels are fixed to the brackets by bolts.

[0023] A box is clamped at the lower end of the roof frame.

[0024] The triangular modules and the trapezoidal modules are connected by bolts.

[0025] The beneficial effects of the present invention are:

[0026] (1) The use of this assembled roof can effectively improve the thermal insulation and heat insulation effect of the roof;

[0027] (2) The use of this assembled roof can effectively solve the roof drainage problem and prevent rainwater from gathering;

[0028] (3) The use of this assembled roof can effectively prevent the top plate and wall panels in the box from being soaked by rainwater;

[0029] (4) The assembled roof bracket is fixed to the roof purlin by bolts, which can effectively fix the photovoltaic panel and enhance its stability;

[0030] (5) The use of prefabricated roofs can effectively increase the area of ​​​​photovoltaic panels and improve the installed capacity;

[0031] (6) The prefabricated roof has a novel, simple and beautiful shape. It is suitable for all kinds of prefabricated building roofs, has good applicability and great promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is a schematic diagram of the roof structure of the present invention,

[0033] Figure 2 It is a modular combined roof truss diagram of the present invention.

[0034] Figure 3 This is the photovoltaic panel installation diagram of the present invention.

[0035] Figure 4 It is a schematic diagram of the structure of the bracket.

[0036] In the figure: 1. Roof truss, 2. Purlin, 3. Waterproof layer, 4. Insulation layer, 5. Purlin support plate, 6. Stiffening ribs, 7. Synthetic resin tile, 8. Bracket, 9. Photovoltaic panel, 10. Triangular module, 11. Trapezoid module. DETAILED DESCRIPTION

[0037] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0038] The present invention provides a prefabricated building photovoltaic roof structure, such as Figure 1 As shown, at least one triangular module 10 and two trapezoidal modules 11 are included, and the trapezoidal module 11 is located between the two triangular modules 10. Each module is composed of a frame frame and internal rods, and the materials are all prefabricated square steel sections. The module frame installation angle is 15-20°, and the modules are fixedly connected by bolts to form an assembled roof truss 1. Each module is composed of a frame frame and internal rods, and the materials are all prefabricated square steel sections. The module frame installation angle is 16.7°, and the roof truss 1 and the lower box are also fixedly connected by snaps.

[0039] like Figure 2As shown, purlins 2 are laid on the upper part of every two roof trusses 1 with a certain spacing, and a supporting net is laid on the purlins 2 to paste the insulation layer 4. The insulation layer 4 can use rock wool insulation board, with a heat transfer coefficient K = 0.45W / (㎡.K), a thermal conductivity coefficient ≤ 0.04W / (mk), and a combustion performance level requirement of Class A. Then, a wooden base is laid on the insulation layer 4, and then a waterproof layer 3 is made. The waterproof level of the waterproof layer 3 is Class II. For a waterproof defense, SBS modified asphalt waterproof membrane or other waterproof materials can be used. The waterproof layer 3 A synthetic resin tile 7 is laid on the roof. For the sloping roof formed by a triangular module 10 and a trapezoidal module 11 facing south, brackets 8 are arranged at a certain interval on the synthetic resin tile 7. The interval of the brackets 8 is determined according to the opening position of the photovoltaic panel 9. The brackets 8 can adopt cross-sectional forms such as channel steel, C-shaped steel, and Z-shaped steel. The brackets 8 are fixed on the purlin 2. Photovoltaic panels 9 are laid on the brackets 8 for power generation. The photovoltaic panels 9 are fixed to the brackets 8 by bolts. BAPV or BIPV can be used, which can be selected according to actual needs.

[0040] Example 1

[0041] This embodiment proposes an assembled building photovoltaic roof structure, such as Figure 1 As shown, it includes at least two triangular modules 10 and one trapezoidal module 11. The triangular modules 10 are distributed on both sides of the trapezoidal module 11. The triangular modules 10 are fixedly connected to the trapezoidal modules 11 to form a roof truss 1. An insulation layer 4 is laid on the upper end of the roof truss 1. Purlins 2 are provided between the roof truss 1 and the insulation layer 4. The purlins 2 are fixedly connected to brackets 8, and photovoltaic panels 9 are fixedly connected to the brackets 8.

[0042] Example 2

[0043] This embodiment proposes an assembled building photovoltaic roof structure, such as Figure 1 and Figure 2 As shown, it includes at least two triangular modules 10 and one trapezoidal module 11. The triangular modules 10 are distributed on both sides of the trapezoidal module 11. The triangular modules 10 are fixedly connected to the trapezoidal modules 11 to form a roof truss 1. An insulation layer 4 is laid on the upper end of the roof truss 1. Purlins 2 are provided between the roof truss 1 and the insulation layer 4. The purlins 2 are fixedly connected to brackets 8, and photovoltaic panels 9 are fixedly connected to the brackets 8.

[0044] The outer surface of the upper end of the thermal insulation layer 4 is paved with a waterproof layer 3 , and the outer surface of the upper end of the waterproof layer 3 is paved with a synthetic resin tile 7 .

[0045] Each assembled roof truss 1 comprises two triangular modules 10 and one trapezoidal module 11. The materials of the triangular modules 10 and the trapezoidal modules 11 are both prefabricated square steel sections, and the module frames are installed at an inclination angle of 16.7°.

[0046] Example 3

[0047] This embodiment proposes an assembled building photovoltaic roof structure, such as Figure 1 and Figure 2 As shown, it includes at least two triangular modules 10 and one trapezoidal module 11. The triangular modules 10 are distributed on both sides of the trapezoidal module 11. The triangular modules 10 are fixedly connected to the trapezoidal modules 11 to form a roof truss 1. An insulation layer 4 is laid on the upper end of the roof truss 1. Purlins 2 are provided between the roof truss 1 and the insulation layer 4. The purlins 2 are fixedly connected to brackets 8, and photovoltaic panels 9 are fixedly connected to the brackets 8.

[0048] The outer surface of the upper end of the thermal insulation layer 4 is paved with a waterproof layer 3 , and the outer surface of the upper end of the waterproof layer 3 is paved with a synthetic resin tile 7 .

[0049] Each assembled roof truss 1 comprises two triangular modules 10 and one trapezoidal module 11. The materials of the triangular modules 10 and the trapezoidal modules 11 are both prefabricated square steel sections, and the module frames are installed at an inclination angle of 18°.

[0050] The purlin 2 is fixed on the roof truss 1 by a purlin support plate 5 . The purlin support plate 5 is connected to the purlin 2 by bolts. A stiffening rib 6 is provided on the side of the purlin support plate 5 away from the purlin 2 .

[0051] The thermal insulation layer 4 is made of rock wool thermal insulation board.

[0052] Example 4

[0053] This embodiment proposes an assembled building photovoltaic roof structure, such as Figure 1 and Figure 2 As shown, it includes at least two triangular modules 10 and one trapezoidal module 11. The triangular modules 10 are distributed on both sides of the trapezoidal module 11. The triangular modules 10 are fixedly connected to the trapezoidal modules 11 to form a roof truss 1. An insulation layer 4 is laid on the upper end of the roof truss 1. Purlins 2 are provided between the roof truss 1 and the insulation layer 4. The purlins 2 are fixedly connected to brackets 8, and photovoltaic panels 9 are fixedly connected to the brackets 8.

[0054] The outer surface of the upper end of the thermal insulation layer 4 is paved with a waterproof layer 3 , and the outer surface of the upper end of the waterproof layer 3 is paved with a synthetic resin tile 7 .

[0055] Each assembled roof truss 1 comprises two triangular modules 10 and one trapezoidal module 11. The materials of the triangular modules 10 and the trapezoidal modules 11 are both prefabricated square steel sections, and the module frames are installed at an inclination angle of 18°.

[0056] The purlin 2 is fixed on the roof truss 1 by a purlin support plate 5 . The purlin support plate 5 is connected to the purlin 2 by bolts. A stiffening rib 6 is provided on the side of the purlin support plate 5 away from the purlin 2 .

[0057] The thermal insulation layer 4 is made of rock wool thermal insulation board.

[0058] The photovoltaic panel 9 is fixed on the bracket 8 by bolts.

[0059] A box is clamped at the lower end of the roof truss 1.

[0060] The triangular module 10 and the trapezoidal module 11 are connected by bolts.

Claims

1. An assembled building photovoltaic roof structure, characterized in that: The invention comprises two triangular modules (10) and a trapezoidal module (11), wherein the two triangular modules (10) are distributed on both sides of the trapezoidal module (11), and the two triangular modules (10) are fixedly connected to the trapezoidal module (11) to form a roof truss (1), wherein a thermal insulation layer (4) is laid on the upper end of the roof truss (1), a purlin (2) is provided between the roof truss (1) and the thermal insulation layer (4), the purlin (2) is fixedly connected to a bracket (8), and a photovoltaic panel (9) is fixedly connected to the side of the bracket (8) away from the thermal insulation layer (4).

2. The assembled building photovoltaic roof structure according to claim 1, characterized in that: The upper outer surface of the thermal insulation layer (4) is paved with a waterproof layer (3), and the upper outer surface of the waterproof layer (3) is paved with a synthetic resin tile (7).

3. The assembled building photovoltaic roof structure according to claim 1, characterized in that: Each of the assembled roof trusses (1) comprises two triangular modules (10) and one trapezoidal module (11); the materials of the triangular modules (10) and the trapezoidal modules (11) are both prefabricated square steel sections; and the module frames have installation inclination angles of 15-20°.

4. The assembled photovoltaic roof structure of claim 1, characterized in that: The purlin (2) is fixed on the top of the roof truss (1) by means of a purlin support plate (5), the purlin support plate (5) is connected to the purlin (2) by means of bolts, and a stiffening rib (6) is arranged on the side of the purlin support plate (5) away from the purlin (2).

5. The assembled building photovoltaic roof structure according to claim 1, characterized in that: The thermal insulation layer (4) is made of rock wool thermal insulation board.

6. The assembled building photovoltaic roof structure according to claim 1, characterized in that: The photovoltaic panel (9) is fixed on the bracket (8) by means of bolts.

7. The assembled building photovoltaic roof structure according to claim 1, characterized in that: A box body is clamped at the lower end of the roof frame (1).

8. The assembled building photovoltaic roof structure according to claim 1, characterized in that: The triangular module (10) and the trapezoidal module (11) are connected by bolts.

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