What is the construction cost of one square meter of modern glass greenhouse?
Detailed cost composition of glass greenhouse
Glass greenhouse is a greenhouse with glass as lighting material, which belongs to a kind of greenhouse. In modern agricultural facilities, glass greenhouse is a kind of greenhouse with long service life, which is suitable for use in various regions and various climatic conditions. Glass greenhouses can be divided into: vegetable glass greenhouses, flower glass greenhouses, nursery glass greenhouses, ecological sightseeing glass greenhouses, scientific research and teaching glass greenhouses, three-dimensional planting glass greenhouses, special-shaped glass greenhouses, leisure agriculture glass greenhouses, intelligent glass greenhouses, etc. .
We need to understand the cost of the glass greenhouse when we are making the design plan, so today we will divide the cost composition of the glass greenhouse from the sub-system and system components.
A set of formal fully automated glass greenhouse system consists of: civil construction part, main frame (steel frame), surrounding covering material, top covering material, external shading system, internal shading system (or internal thermal insulation system), fan and water curtain for forced cooling and ventilation System, top window natural ventilation system, water curtain integral electric eversion window system, power distribution system, engineering installation fee, transportation fee, tax. Since the sub-system cost of the glass greenhouse is directly related to the area and height, we temporarily take a set of glass greenhouses of 2000 square meters and a height of 6 meters as the cost reference.
1. Civil construction: Including site leveling costs, independent foundation piers, surrounding strip foundation ring beams, and surrounding retaining walls. In flat areas such as non-mountainous or hilly areas, the general cost is about 20-30 yuan per square meter.
2. Main frame (steel frame) including main column (100*100*3.0 or 120*120*3.5 or 150*150*3.5 hot-dip galvanized pipe), truss beam (up and down Xuan 50*50*2.0 or 60*80* 2.0 or 50*100*3.0 black pipes are hot-dip galvanized after welding), sink/gutter (wall thickness 2.0, 2.2), surrounding maintenance beams (50*50*2.0 hot-dip galvanized square pipes), herringbone beams (30 *50*2.0 hot-dip galvanized rectangular tube), external sunshade transverse and longitudinal beam (50*50*2.0 hot-dip galvanized square tube) The above frame materials are selected by the greenhouse manufacturer according to the snow load, wind load and the size of the span of the greenhouse in different regions. Different material specifications are used. The comprehensive cost per square meter of steel frame is 90~130 yuan/square meter
3. The surrounding materials are generally covered with 4+9+4, 5+6+5, 5+9+5 double-layer insulating glass. As for whether the glass around the greenhouse needs to be tempered, it is determined according to their actual needs. It is not necessary for planting use. Tempering. The glass greenhouse is covered with fixed 60-type open-frame aluminum profiles in addition to glass. Because the price of glass varies greatly from region to region, it is an area with convenient economic transportation; the unit price of glass converted to per square meter is 35~50 yuan / square meter
4. Top cover material The top cover material is generally composed of double-layer hollow sun panels or single-layer tempered glass and aluminum profile accessories, etc. The double-layer hollow sun panels are preferred for thermal insulation, light weight and strong structure. The cost per square meter of this part is about 60 yuan/square meter 5. External sunshade system The system consists of external sunshade net, driving side, driving rod, transmission rod, curtain pull motor, curtain support line and so on. For this set of systems, we generally care about the shading net, shading rate and service life. The sunshade net of regular manufacturers is guaranteed for five years, and the light transmittance is 75% and 85%. The unit price of the system is about 15 yuan / square meter
5. Inner shading system The composition of the system is the same as that of the outer shading system, except that the outer shading net is replaced by the inner shading net. The internal shading (insulation) net is an aluminum foil net, the quality guarantee period of the net is also five years, and the light transmittance is 65%, 75%, and 85%. The unit price of this system is about 18 yuan / square meter
6. Fan and water curtain forced cooling and ventilation system The system consists of fans (1380 type, 1530 type), water curtain (100 type, 150 type), water curtain pipe fittings and water curtain pump. The cost of the system is about 10 yuan / square meter
8. Natural ventilation system with windows at the top The windows at the top are mostly arranged in a staggered way, and the ventilation openings are evenly arranged. The system is generally composed of a geared motor, a drive system, and a window aluminum profile. The cost of the system is about 15 yuan / square meter
9. Water curtain integral electric eversion window system This system is a window covering the outside of the water curtain. We can choose to use an electric integral eversion window or a sliding window. The electric eversion window is composed of a small column, a driving rack, a driving motor, an aluminum profile, a sun panel, etc. The unit price of the system is 10 yuan / square meter
10. Power distribution system Power distribution system includes control cabinet, fan, water curtain pump, internal and external sunshade motor, top-opening window motor control line, etc. Usually around 5,000 to 10,000 yuan.
11. Project installation cost The project installation cost includes the installation and commissioning price of the main body of the greenhouse and each system. The installation cost of a 6-meter-high glass greenhouse is generally 50-60 yuan per square meter.
12. Transportation costs It mainly includes the costs of transporting greenhouse materials and transportation equipment to the construction site. The prices are different in different regions and will not be discussed here.
13. Taxes are divided into general votes and value-added tax, and financial consultation with greenhouse manufacturers is based on demand; no discussion will be made here.
In summary, the cost of a complete set of standard glass greenhouses ranges from: 323~400 yuan / square meter (this price is based on the budget of the material inquiry office in March 2018) We can also increase according to our actual needs in the actual construction. minus the above system.
