保定自动卷帘机厂

1.大棚的投资大、应用年限长，易受外界环境影响

The investment of the large shed is large, the application years are long, it is easily affected by the outside environment

建棚前要周密计划，有条件的地方首先应选好建棚场地，科学布局，并根据自然条件、经济力量和原材料，确定棚型和大小。然后根据大棚结构的负荷能力，作出应用材料的计划，最后准备好大棚内的其它设备，如门、窗、灌溉系统等。

To plan carefully, before JianPeng conditional place, first of all, should choose good JianPeng venues, scientific layout, and according to the natural conditions, economic power and raw materials, determine the type and size. Then, according to the load capacity of the structure, the plan of the application materials is made, and the other equipments in the tent, such as door, window, irrigation system, etc. Are prepared.

2.目前情况下，大棚的面积大，其保温能力强，温度较稳定，受低温影响较少

At present, the big shed area is big, its heat preservation ability is strong, the temperature is stable, it is less affected by low temperature

但面积过大，管理不方便，通风透气不良。通常塑料大棚的面积在200平方米以上，1000平方米以下。大棚的宽度以7-10米为限，过宽则通风不良，棚面角度太小，进光量不足，且棚面太平易积水存雪。

But the area is too big, the management is inconvenient, the ventilation is very bad. Normally the area of plastic big shed is above 200 square metre, 1000 square metre is below. The width of the shed is limited to 7-10 meters, the width is ventilated, the floor Angle is too small, the light quantity is insufficient, and the shed face is too easy to deposit snow.

3.大棚的方位，应按照棚型、场地条件告示综合考虑

The location of the large shed shall be considered according to the shelf and the conditions of the site

一般拱圆型大棚、屋脊式大棚、连栋大棚，应以东西为宽、南北方向延长为宜。这种南北方向大棚的受光量均匀，透光量大。在冬季温暖、以春、夏、秋生产为主的地区利用较合适。单斜面大棚或不等面屋脊型大棚，应为南北宽、东西方向延长为宜。这种大棚午间受光量大，棚温高，适于冬季寒冷地区越冬栽培应用。

The general arch, the roof of the roof, the roof of the roof, the large shed, should be extended in a wide and north-south direction. The north and south side of the canopy are uniformly light and light. It is suitable for the warm, spring, summer and autumn production areas in winter. The single slant or unequal roof of the roof should be extended to the width of the north and the south. This kind of big tent midday is light quantity big, the room temperature is high, it is suitable for the winter cold area wintering cultivation application.

4.建造塑料大棚的场地以短时间内不做其它基本建设所用为原则。

The construction of a plastic shed will be based on the principle of not doing other basic construction in a short time.

为便于管理，应集中建设，而且最好选择有发展前途.可以不断扩大的场地，为建造和产品运输方便，宜安排在道路两侧。在农村应将大棚建造在背北风的村南。在城市不要把人棚建在工厂的下风地段，以免受烟尘危害，山区有高坎土崖或附近有围墙时，均可利用做避风向阳物建造大棚。如有地热资源及工厂余热，在其就近建造大棚更有得天独厚的优势。

For ease of management, should focus on construction, and had better choose promising. Can the widening field, products for construction and transportation is convenient, appropriate is arranged on both sides of road. In the countryside, the shelter should be built in the south of the north wind. Don't put the people shed were built in a factory in the city lee area, in order to avoid the smoke hazard, mountain cliffs Gao Kan soil or near the wall, are available for the shelter xiangyang building greenhouses. If there are geothermal resources and the heat of the factory, it is more advantageous to build a shed nearby.