CN204090645U - A kind of zigzag connects a photovoltaic agricultural planting booth - Google Patents

Abstract

The utility model patent discloses a photovoltaic power generation agricultural planting greenhouse with a zigzag roof, which includes more than one greenhouse body with a number of spans and bays. The roof of the greenhouse has a zigzag shape and unequal slopes. Photovoltaic cell modules and PC panels (or glass) are laid on the south side of the roof, and insect-proof nets (or plastic films) for gardening are laid on the north side of the roof. The photovoltaic modules on the roof of the greenhouse can generate electricity, and crops such as vegetables or flowers can be planted inside the greenhouse; lighting strips are evenly set up between the photovoltaic modules on the roof of the greenhouse, covered with PC boards (or glass), so that the photovoltaic modules can provide shade for the crops. At the same time, it does not affect crop production and lighting, and can also reduce the erosion and blowing of crops in the shed by rainstorms and typhoons; vents (or roll-film window opening mechanisms) covered by insect-proof nets are set on the north side of the roof and surrounding walls of the greenhouse, which can reduce Greenhouse production temperature in summer; the utility model is suitable for the south of the Yangtze River in my country (especially the hot zone in my country) and the areas with similar natural environment.

Description

A zigzag multi-span photovoltaic agricultural planting greenhouse

technical field

The utility model relates to the technical field of solar energy utilization and agricultural facility greenhouses, in particular to a zigzag multi-span photovoltaic agricultural planting greenhouse.

Background technique

With the development of the times, the demand for new energy utilization is increasing; at the same time, the technology of using facility greenhouses for agricultural production is becoming more and more mature, and the planting area is huge. The development of solar photovoltaic power generation requires a large amount of land resources; the development of facility greenhouses requires reducing their construction costs and obtaining a better indoor production environment.

Contents of the invention

The purpose of this utility model is to provide a new agricultural planting greenhouse structure, so that the roof of the greenhouse can fully utilize solar energy to generate electricity, and the interior of the greenhouse can provide a good production environment for vegetables or flowers, and better meet the requirements of solar power generation. Large area of land" and agricultural planting demand for "low cost" and "suitable production environment".

The inventor of the utility model has noticed that some greenhouse structures combining photovoltaic power generation and agricultural planting have been established in various parts of the world and in China, but due to lack of attention to the combination with the requirements of the natural environment and agricultural planting, the built greenhouses Either the planting benefits are poor, or the power generation benefits are not good, and it is difficult to obtain double profits from agriculture and photovoltaic power generation.

Therefore, on the basis of fully considering the agricultural planting conditions and the natural environment, the utility model is set to meet the basic requirements of agricultural production as a premise, and develops and designs a new photovoltaic power generation agricultural planting system with regional applicability. The structure of the greenhouse.

In order to achieve the above purpose, the utility model adopts the following design scheme: a multi-span zigzag roof photovoltaic agricultural planting greenhouse, including more than one greenhouse body with a number of spans and bays. The roof on the south side of the greenhouse is arranged and installed at intervals with photovoltaic panels and PC boards (or glass); the roof on the north side of the greenhouse and the walls around the greenhouse are covered with gardening insect-proof nets or plastic films (including roll film window opening mechanisms) .

In addition, a gutter pressed by galvanized sheets is set between the greenhouses or a drainage ditch with geotextiles is set on the indoor floor of the greenhouse (also used as a planting walkway).

Therefore, the advantages of the zigzag multi-span photovoltaic agricultural planting greenhouses are: it can not only provide a good production environment for vegetable and flower production, but also input electric energy into the power grid, and a small part can be used for greenhouse planting irrigation and other mechanical needs. electrical energy. Photovoltaic cell modules block most of the strong light for the crops in the shed, providing a good environment for the crops; at the same time, the north side of the roof of the greenhouse is equipped with vents covered by insect-proof nets, which are covered with insect-proof nets on the walls around the photovoltaic greenhouse. The ventilation openings can form good natural ventilation, and the shading effect of the photovoltaic cell components can better reduce the temperature inside the greenhouse. The photovoltaic cell components and PC boards on the south side of the greenhouse roof can prevent the rainstorm from attacking the crops. At the same time, its strength is higher than that of traditional plastic films, which can minimize the damage of typhoon and rain to the crops in the shed. It can be seen that the greenhouse can make full use of the agricultural planting land to provide clean energy, and can also provide a good production environment for the crops in the greenhouse. Based on the characteristics of the greenhouse, it is suitable for large-scale development in my country's hot areas, such as Hainan Province and parts of Guangdong, Guangxi, Yunnan, Sichuan and other provinces, as well as areas with similar natural environments. Of course, by changing the form of its partial coverage, it can be applied to areas south of the Yangtze River in a wider range.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of the utility model and the first arrangement of the roof covering.

Fig. 2 is a schematic cross-sectional view of the utility model in the spanning direction.

Fig. 3 is a structural schematic diagram (partial) of the north roof of the utility model "when the included angle is 0°".

Fig. 4 is a structural schematic diagram (partial) of the north roof of the utility model "when the included angle is 60°".

Fig. 5 is a schematic diagram of the second arrangement of the roof covering of the present invention.

Fig. 6 is a schematic diagram of the third arrangement of the roof covering of the present invention.

Detailed ways

As shown in Figures 1 and 2, the zigzag-shaped multi-span photovoltaic agricultural planting greenhouse of the present invention includes more than one number of spans and bays (in practical applications, any combination of spans and bays can be selected according to requirements, in the example of this figure is 3-span, 3-bay) greenhouse body. The roof on the south side of the greenhouse is installed with photovoltaic cell modules and PC boards (or glass) at intervals, and the roof on the north side of the greenhouse and the surrounding walls of the greenhouse are covered with insect-proof nets or plastic films (including roll-film window opening mechanisms) for gardening.

1 shown in the figure is composed of solar cell modules such as "ordinary crystalline silicon solar cells", "thin film solar cells" or "double glass crystalline silicon solar cells". In addition, the purlins can use C-shaped, several-shaped and other hot-dip galvanized pipe fittings, which are convenient for installation and long-term use.

2 shown in the figure is PC board or glass covering, which is fixed on the longitudinal purlins of the roof of the shed with aluminum alloy bead, frame and bolts, and sealed with formed sealant strip or sealant between bead and frame.

3 shown in the figure is the roof on the north side of the greenhouse. In practice, the angle between the roof on the north side and the vertical direction can be between 0° and 60° (as shown by 12 in Figure 2). When the included angle is 0°~20°, the side roof can be covered with 20~60 mesh horticultural insect-proof net; when the included angle is greater than 20°, it is advisable to add a layer of plastic film on the outside of the insect-proof net ( Including rolling film window opening mechanism), the plastic film can be rolled to the roof during the non-rainy period and high temperature season to form a ventilation window and reduce the indoor temperature; when it rains or the temperature is low, the plastic film can be rolled down to prevent the rainstorm from damaging the indoor crops Flush or increase room temperature. Therefore, according to the needs of crops for greenhouse insulation, it is recommended that in areas where the average winter temperature is above 10°C, the above-mentioned angle should be 0°~20°, preferably 0°; in areas where the average winter temperature is 0°C-10°C, the above-mentioned angle Angle adopts 20°～60°, preferably 60°.

4 shown in the figure is the roof drainage gutter of greenhouse, adopts galvanized plate to press and form. If rainwater has little effect on indoor crops, other hot-dip galvanized pipe fittings can be used instead of the gutter to reduce the cost. At this time, the drainage from the roof will directly enter the interior of the greenhouse. For this reason, a 0.5m wide drainage ditch (as shown in Figure 2, 5) is added on the indoor floor at the side vertically below the gutter. The depth of the drainage ditch is based on the local It depends on the amount of rainfall and the length of the greenhouse (dimensions along the direction of the bay). At the same time, directly laying geotextiles in the ditch will not damage the structural form of the farmland (use as little as possible of bricks, stones, and concrete), and can make the drainage smooth. At the same time, it can also be used as an operation walkway for indoor planting, which can be used for multiple purposes in one place and save land. resource.

The number 6 shown in the figure is the size of the daylighting belt between groups of photovoltaic cell modules on the south roof of the greenhouse, which is obtained between 0.5m and 1.0m. According to the needs of crops for lighting, 0.8m is preferred; it should be noted that when choosing "ordinary crystalline silicon solar cells" and "thin film solar cells" photovoltaic cell components, it is necessary to arrange the lighting belt shown in Figure 6, And it can be arranged according to the roof covering arrangement in Figure 1 and Figure 5; when the "double glass silicon solar cell" photovoltaic cell module is used, 6 (the size of the daylighting belt) shown in the figure is 0, and it can be used according to the figure The roof covering arrangement shown in 6 is arranged.

7 shown in the figure indicates that when the photovoltaic cell modules on the roof of the greenhouse are arranged at intervals, the length (along the direction of the bay) of the cell module array is obtained between 2.0m and 4.0m. Depends on the demand, preferably 3.4m.

8 shown in the figure is the bay size of the greenhouse, which is obtained between 2.0m and 5.0m, preferably 4.0m.

9 shown in the figure is the span size of the greenhouse, which is obtained between 5.0m and 6.0m, preferably 5.5m.

The 10 shown in the figure is the shoulder height of the greenhouse (the height from the shoulder height and the foundation surface to the lower part of the gutter), which is obtained between 2.0m and 3.0m, preferably 2.4m.

11 shown in the figure is the wall around the greenhouse. In actual implementation, according to the needs of crops for greenhouse insulation, it is recommended that areas with an average winter temperature above 10°C be covered with 20-60 mesh horticultural insect-proof nets. In areas where the temperature is between 0°C and 10°C, it is advisable to add a layer of plastic film covering the outside of the insect net (including the film window opening mechanism). When the temperature is high, the plastic film can be rolled to the roof to form a ventilation window and reduce the indoor temperature. , When the temperature is low, roll down the plastic film to increase the indoor temperature.

13 shown in the figure is the width dimension of the solar photovoltaic module on the roof array of the greenhouse, which is obtained between 3.5m and 4.5m, preferably 4m.

In addition: the angle between the roof on the south side of the greenhouse and the horizontal plane is 10°~18° (as shown by 14 in Figure 2). The value should be obtained according to the size of the solar altitude angle of the local calculation day, so that the sun's rays are as vertical as possible to the roof (existing technology); the greenhouse only gives the basic structural form, and the skeleton material should be adopted according to the structural requirements of the greenhouse The hot-dip galvanized material, the cross-section of the material and the foundation of the greenhouse should be specifically designed according to the requirements of relevant specifications (existing technology).

Claims (10)

1. a zigzag connects a photovoltaic agricultural planting booth, comprise more than one span number and standard width of a room in an old-style house number, it is characterized in that: the ceiling of Lian Dong is zigzag, solar photovoltaic battery component is arranged in the southern side of each sawtooth roofing and PC plate or glass lighting band are arranged in interval, the north side of each sawtooth roofing and the metope of booth surrounding arrange gardening fly net or plastic film, and described plastic film comprises volume film window-opening mechanism.

2. zigzag according to claim 1 connects a photovoltaic agricultural planting booth, it is characterized in that: the described southern side of sawtooth roofing and the angle of horizontal plane are between 10 ° ~ 18 °.

3. zigzag according to claim 1 connects a photovoltaic agricultural planting booth, it is characterized in that: the described north side of sawtooth roofing and the angle of vertical direction are between 0 ° ~ 60 °.

4. zigzag according to claim 1 connects a photovoltaic agricultural planting booth, it is characterized in that: the shoulder height size of booth is between 2.0m ~ 3.0m, described shoulder height refers to the height of basic end face to gutter bottom surface, and spanwise dimension is between 5.0m ~ 6.0m, and standard width of a room in an old-style house size is between 2.0m ~ 5.0m.

5. zigzag according to claim 1 connects a photovoltaic agricultural planting booth, it is characterized in that: the width of the photovoltaic module of each southern side roofing is between 3.5m ~ 4.5m, and the width of the photovoltaic module of described southern side roofing is along span direction.

6. zigzag according to claim 1 connects a photovoltaic agricultural planting booth, it is characterized in that: described photovoltaic cell component is " common crystal silicon solar batteries " or " thin-film solar cells " or " two glass crystal silicon solar batteries ".

7. the zigzag according to claim 1 or 6 connects a photovoltaic agricultural planting booth, it is characterized in that: when southern side roofing adopts " common crystal silicon solar batteries " and " thin-film solar cells " as roofing photovoltaic battery component, roofing photovoltaic assembly needs grouping, reserved PC plate or glass-faced ribbon skylight, between grouping, the width of interval ribbon skylight is 0.5m ~ 1.0m, interval ribbon skylight arranged direction " is parallel to span " direction or " being parallel to the standard width of a room in an old-style house " direction; When interval ribbon skylight is parallel to span direction, often organize the length of photovoltaic cell component array between 2.0m ~ 4.0m, the length of described photovoltaic cell component array is along standard width of a room in an old-style house direction.

8. the zigzag according to claim 1 or 6 connects a photovoltaic agricultural planting booth, it is characterized in that: when southern side roofing adopts " two glass crystal silicon solar batteries " as roofing photovoltaic battery component, then do not arrange class interval ribbon skylight.

9. zigzag according to claim 1 connects a photovoltaic agricultural planting booth, it is characterized in that: north side roofing and booth surrounding metope adopt gardening fly net to cover, or adopt covered rearing with plastic film, and described plastic film comprises volume film window-opening mechanism.

10. zigzag according to claim 1 connects a photovoltaic agricultural planting booth, it is characterized in that: roofing across with across between position adopt die mould galvanized sheet gutter as being connected, water discharge member; When do not adopt gutter as drainage pattern, adopt pipe fitting to replace its connection function time, then the wide groove of 0.5m, interior paving geotextiles need be set as drain ditch on ground, vertical lower side, former gutter position, double as plantation aisle.