Water guide groove for building roof waterproofing for building integrated photovoltaics (BIPV)

Abstract

The utility model discloses a waterproof water guide groove for a building roof for building integrated photovoltaics (BIPV). The photovoltaic panel groove comprises a groove body, the groove body is arranged at a gap between every two adjacent photovoltaic panels, and the middle part of the groove body extends upwards to form a convex part; the groove body is divided into two water collecting grooves by the protruding part, and a plurality of drainage grooves are distributed in the water collecting grooves. A filter screen is fixedly arranged at the bottom of the drainage groove; a water collecting chamber is fixedly arranged at the bottom of the tank body; the gradient on the two sides of the protruding part accelerates the drainage speed of water flow, and therefore the drainage efficiency is improved. Due to the fact that the protruding part is arranged, a relatively high area is formed in the middle of the groove body, water flow can flow towards the two sides more easily, and accumulated water is prevented from being formed in the middle. The potential damage of moisture to the building and the photovoltaic panel is reduced, and meanwhile, the drying and cleaning of the tank body are kept; and the direction and the speed of water flow are changed through the protruding parts, impurities and particles can be precipitated in the water collecting chamber more easily, and therefore cleaning work is more convenient and efficient.

Description

Technical Field

[0001] The utility model relates to the technical field of photovoltaic building integration, in particular to a water guide ditch for building roof waterproofing used for BIPV. Background Art

[0002] BIPV stands for "building integrated photovoltaics". It is a technology that integrates solar power generation (photovoltaic) products into buildings, so that the building's external protective structure such as the roof, exterior wall or sunshade device can also generate electricity.

[0003] In the BIPV system, the waterproof design of the building roof is crucial, which is directly related to the service life of the photovoltaic system and the safety of the building. The gutter is part of the waterproof system; the main function of the gutter is to quickly and effectively drain the rainwater on the roof to prevent the accumulation of water from damaging the photovoltaic panels and the roof structure. Specifically, the gutter is usually set in the low-lying areas of the roof or the gaps between photovoltaic panels to collect and guide rainwater to the drain.

[0004] At present, the interior of the water channel is usually flat, and there is no clear drainage path inside the water channel, which may cause eddy currents or stagnation of water flow in the channel, especially when the rainfall is heavy or the water flow is fast, which is more likely to cause water congestion and water accumulation, reducing the drainage efficiency of the water channel; moreover, there is no special structure inside the water channel to prevent the accumulation of debris. When rainwater flows through the water channel, it may carry debris such as leaves and dust, which are easy to be retained and accumulated inside the plane; long-term accumulation may cause blockage of the water channel and affect the drainage effect; cleaning and maintenance are relatively difficult. Once debris accumulates or blockage occurs inside the water channel, cleaning staff need to spend more time and energy to clean it. This not only increases maintenance costs, but may also affect the normal use of the water channel. Utility Model Content

[0005] In view of the problems existing in the above-mentioned prior art, the utility model provides a water guide groove for building roof waterproofing for BIPV, which can effectively solve the problems existing in the above-mentioned prior art.

[0006] The technical solution of the utility model is:

[0007] According to one aspect of the utility model, it includes: a trough body, which is arranged at the gap between every two adjacent photovoltaic panels, and a protrusion is extended upward from the middle of the trough body; the protrusion divides the trough body into two water collecting troughs, and the water collecting trough is distributed with a plurality of drainage troughs; a filter is fixedly provided at the bottom of the drainage trough; and a water collecting chamber is fixedly provided at the bottom of the trough body.

[0008] Furthermore, a plurality of connecting plates are fixedly provided on the top of the trough body, and the connecting plates are used to connect photovoltaic panels.

[0009] Furthermore, the trough body is in an open shape that is wide at the top and narrow at the bottom; flanges are provided at both the left and right ends of the trough body; and the connecting plate abuts against the flanges.

[0010] Furthermore, the raised portion is arched.

[0011] Furthermore, a platform is arranged on the top of the raised portion; and reinforcing ribs are fixedly arranged on the bottom of the connecting plate, and the reinforcing ribs abut against the platform.

[0012] Furthermore, a through hole is opened in the middle of the raised portion, and a plurality of heating tubes are distributed inside the raised portion.

[0013] Furthermore, the heating tube is arranged in contact with the inner wall of the raised portion.

[0014] Furthermore, the edge of the drainage groove is provided with a rounded edge.

[0015] By adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art:

[0016] Firstly, the slopes on both sides of the raised part accelerate the discharge speed of water flow and reduce the residence time of water in the trough, thereby improving the drainage efficiency; due to the setting of the raised part, a relatively high area is formed in the middle of the trough, making it easier for water to flow to both sides and avoid the formation of water accumulation in the middle; this helps to reduce the potential damage of water to buildings and photovoltaic panels while keeping the trough dry and clean; and the raised part changes the direction and speed of the water flow, making it easier for impurities and particulate matter to settle in the water collection chamber instead of being evenly distributed throughout the trough, which makes cleaning more convenient and efficient and reduces the complexity and cost of maintenance.

[0017] Secondly, rainwater may carry various impurities, such as leaves, dust, insects, etc. If these impurities directly enter the water collection chamber, they may cause blockage of the water collection chamber and affect the drainage efficiency. The filter can effectively intercept these impurities and keep the water collection chamber unobstructed, thereby preventing blockage.

[0018] Third, the heating pipe transfers heat from the heating source to the wall of the raised part; in cold climate conditions, especially in northern regions, the water in the trough may freeze and cause blockage of the trough; by setting up the heating pipe, the water can be effectively prevented from freezing and the trough can be kept unobstructed. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the enlarged structure of point A of the utility model;

[0022] Figure 3 This is a schematic diagram of the main structure of the utility model;

[0023] Figure 4 This is a structural schematic diagram of the connection between the water channel and the photovoltaic panel;

[0024] In the figure: trough body-1, raised part-12, flange-13, water collecting trough-14, connecting plate-2, reinforcing rib-21, heating pipe-3, water collecting chamber-4, drainage trough-5, rounded edge-51, filter screen-52, bolt-6, photovoltaic panel-B. DETAILED DESCRIPTION

[0025] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is particularly noted that the following embodiments are only used to illustrate the present invention, but do not limit the scope of the present invention. Similarly, the following embodiments are only partial embodiments of the present invention rather than all embodiments. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] like Figures 1 to 4 As shown, this solution provides a water guide groove for building roof waterproofing for BIPV.

[0027] See also Figure 4 , comprising: a trough body 1, wherein the trough body 1 is arranged at the gap between each two adjacent photovoltaic panels.

[0028] See also Figures 1 to 3, a raised portion 12 is extended upward from the middle of the trough body 1; the raised portion 12 is arched; the raised portion 12 divides the trough body 1 into two water collection troughs 14, and the slopes on both sides of the arched raised portion 12 accelerate the discharge speed of the water flow, reduce the retention time of water in the trough body 1, and thus improve the drainage efficiency. Due to the provision of the raised portion, a relatively high area is formed in the middle of the trough body, making it easier for the water flow to flow to both sides, avoiding the formation of water accumulation in the middle; this helps to reduce the potential damage of water to the building and photovoltaic panels, while keeping the trough body dry and clean. The water collection trough 14 is distributed with a number of drainage troughs 5; a filter screen 52 is fixed at the bottom of the drainage trough 5; preferably, the mesh number of the filter screen 52 is 8 to 18 meshes; the edge of the drainage trough 5 is provided with a rounded edge 51. A water collection chamber 4 is fixed at the bottom of the trough body 1; the water collection chamber 4 is equipped with a water guide pipe (not shown) for draining rainwater from the water collection chamber 4. Rainwater may carry various impurities, such as leaves, dust, insects, etc. If these impurities directly enter the water collection chamber 4, they may cause blockage of the water collection chamber 4 and affect the drainage efficiency. The filter 52 can effectively intercept these impurities and keep the water collection chamber 4 unobstructed, thereby preventing blockage.

[0029] A plurality of connecting plates 2 are fixedly arranged on the top of the tank body 1, and the connecting plates 2 are used to connect the photovoltaic panels. A platform is also arranged on the top of the raised portion 12; a reinforcing rib 21 is fixedly arranged on the bottom of the connecting plate 2, and the reinforcing rib 21 abuts against the platform, and the connecting plate 2 is fixedly connected to the platform by bolts 6.

[0030] The trough body 1 is in an open shape with a width at the top and a narrow width at the bottom. Both left and right ends of the trough body 1 are provided with flanges 13. The connecting plate 2 abuts against the flanges 13. Both ends of the connecting plate 2 are fixed to the supporting structure of the roof by bolts 6 (not shown).

[0031] A through hole is provided in the middle of the raised portion 12, and a plurality of heating tubes 3 are distributed inside the raised portion 12. In this embodiment, the heating tube 3 is an electric heating tube; specifically, a total of six heating tubes 3 are provided, and the heating tubes 3 are arranged in contact with the inner wall of the raised portion 12. The heating tube 3 transfers heat from the heating source to the wall surface of the raised portion 12; in cold climate conditions, especially in northern regions, the water in the tank body 1 may freeze, causing the tank body 1 to be blocked. By providing the heating tube 3, the freezing of water can be effectively prevented, and the tank body 1 can be kept unobstructed.

[0032] Working principle: Rainwater flows into the trough body 1 through the gap between each two adjacent photovoltaic panels. The slopes on both sides of the raised portion 12 accelerate the discharge speed of the water flow. The rainwater flows into the drainage trough 5, then flows into the water collection chamber 4 through the filter screen 52, and finally is discharged by the water pipe (not shown).

[0033] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A water guide channel for building roof waterproofing for BIPV, comprising: A trough body (1), wherein the trough body (1) is arranged at the gap between each two adjacent photovoltaic panels, and is characterized in that a protrusion (12) is arranged extending upward from the middle of the trough body (1); the protrusion (12) divides the trough body (1) into two water collecting troughs (14), and a plurality of drainage troughs (5) are distributed in the water collecting trough (14); a filter screen (52) is fixedly arranged at the bottom of the drainage trough (5); and a water collecting chamber (4) is fixedly arranged at the bottom of the trough body (1).

2. A water channel for building roof waterproofing for BIPV as claimed in claim 1, characterized in that: A plurality of connecting plates (2) are fixedly arranged on the top of the tank body (1), and the connecting plates (2) are used to connect photovoltaic panels.

3. A water channel for building roof waterproofing for BIPV as claimed in claim 2, characterized in that: The trough body (1) is in an open shape that is wide at the top and narrow at the bottom; both left and right ends of the trough body (1) are provided with flanges (13); and the connecting plate (2) abuts against the flanges (13).

4. The water guide channel for building roof waterproofing for BIPV according to claim 1, characterized in that: The raised portion (12) is arched.

5. The water channel for building roof waterproofing for BIPV according to claim 2, characterized in that: A platform is provided on the top of the raised portion (12); a reinforcing rib (21) is fixedly provided on the bottom of the connecting plate (2), and the reinforcing rib (21) abuts against the platform.

6. The water guide channel for building roof waterproofing for BIPV according to claim 1, characterized in that: A through hole is provided in the middle of the raised portion (12), and a plurality of heating tubes (3) are distributed inside the raised portion (12).

7. A water channel for building roof waterproofing for BIPV as claimed in claim 6, characterized in that: The heating tube (3) is arranged in contact with the inner wall of the raised portion (12).

8. The water guide channel for building roof waterproofing for BIPV according to claim 1, characterized in that: The edge of the drainage groove (5) is provided with a rounded edge (51).

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