The photovoltaic vegetable greenhouse is to install a solar thin-film panel on the top of the ordinary vegetable greenhouse, using solar energy to divide the solar radiation into the light energy required by plants and the light energy of solar power generation, which not only meets the needs of plant growth, but also realizes photoelectricity Convert. Photovoltaic vegetable greenhouses can generate electricity and grow vegetables, and can be used for both purposes.
Photovoltaic agricultural greenhouse is a new mode of photovoltaic application. It is a greenhouse that integrates solar photovoltaic power generation, intelligent temperature control system, and modern high-tech planting. The greenhouse uses a steel framework and is covered with solar photovoltaic components, while ensuring solar photovoltaic Demand for electricity generation and daylighting of crops throughout the greenhouse. The power generated by the photovoltaic greenhouse power station can support the irrigation system of the greenhouse, supplement the light of the plants, solve the heating demand of the greenhouse in winter, increase the temperature of the greenhouse, and promote the rapid growth of crops.
The advantages of photovoltaic vegetable greenhouses:
1. The photovoltaic module is laid on the roof of the closed agricultural greenhouse
This is the most closely integrated form of agriculture and photovoltaics.
advantage:
(1) It can save land resources and solve the contradiction between photovoltaic power generation and planting industry.
(2) Land can be effectively used to reduce land waste. Compared with a single solar greenhouse, the indoor space of this type of greenhouse is relatively large, and the land utilization rate is higher, which effectively overcomes the waste of land on the distance between the single greenhouses.
(3) The greenhouse can form a large-span steel structure according to agricultural needs, with a large space, can form mechanized operations, and even form a sightseeing photovoltaic agriculture.
(4) To improve the degree of agricultural automation, ancillary facilities can be provided: such as internal sunshade insulation system, heating and temperature compensation system, ventilation and cooling system, intelligent control air humidification system, drip irrigation system, etc., to form automated greenhouse agriculture.
(5) Save labor and reduce labor costs.
2. The photovoltaic modules are not laid directly on the greenhouse, but the photovoltaic brackets are placed separately behind or in the middle of the greenhouse.
advantage:
(1) The structure of photovoltaic and agricultural greenhouses is relatively independent, the interaction between photovoltaic modules and crops is relatively small, and there is little phenomenon of glory.
(2) Construction and installation are relatively simple and can be designed separately. The installation and disassembly of agricultural greenhouses and photovoltaic supports are relatively independent and simple.
(3) Lower cost, less steel consumption, and simple structure.
(4) It has good lighting and thermal insulation performance. Compared with the third type of open greenhouse, this type of greenhouse is a closed greenhouse, which has certain thermal insulation performance and obvious energy saving effect.
3. Open shed
It is characterized by the use of higher photovoltaic supports, photovoltaic modules on the top, crops planted underneath, and the open greenhouse is a combination of photovoltaic agriculture questioned by many parties.
advantage
(1) Only a small part of agricultural land is occupied (bracket foundation). Compared with ground-based photovoltaics, there is no need to requisition large areas of land, and crops can still be grown below, saving land resources.
(2) The greenhouse construction cost is lower than the above two types of greenhouses.
(3) Under the ground, it can still meet the operational requirements of agricultural mechanization, reduce manual labor operations, and save labor costs.
(4) The construction and installation of the greenhouse is relatively simple, the construction speed is fast, and the construction period is short.
The above construction prices for various greenhouses are sorted and released by Weifang Sanhe Agriculture. For more detailed construction prices and overall configuration, you can consult and exchange at any time. I hope the above information can help you.
Malleable Iron Pipe Fittings normally use for water pipelines,also can use for oil and gas. Because some of them need Galvanizing, so some clients all it G.I fittings or Iron Fittings. The fittings included Elbow,Nipples, Tees, Caps, Unions, plugs, etc. The details as follow:
Standard:
For BS Pipe Fittings: BS 21:1985
For ANSI pipe fittings: ANSI/ASME B1 20.1-1983
For DIN pipe fittings: DIN 2950/1692/2999
Mechanical Properties:
1)Tensile strength>or=330Mpa
(2)Bending strength>or=520Mpa
(3)Shearing strength>or=284Mpa
(4)Elongation eate>or=8%
(5)Hardness<or=HB150
Hydraulic Test
Test pressure:2.5Mpa
Working pressure:1.6Mpa
Chemical Compositions:
C:2.6%-2.8% Si:1.5%-1.8%
Mn:0.55%-0.7% S:0.25%-0.3%
Type:
Beaded, Beaded with rib, Banded,Banded with rib,Plain
Finishing:
Black, Hot-dipped galvanized, Electro-galvanized
Beaded Type:
Banded type:
Malleable Iron Pipe Fittings
Malleable Iron Pipe Fittings,Galvanized Fittings,Iron Fittings,Zinc Coated Fittings
HEBEI ZIFENG NEW ENERGY TECHNOLOGY CO.,LTD. , https://www.zifengpipeline.com