Greenhouse Abstract

A greenhouse (also called a glasshouse, or, if with sufficient heating, a hothouse) is a structure with walls and roof made chiefly of transparent material, such as glass, in which plants requiring regulated climatic conditions are grown. These structures range in size from small sheds to industrial-sized buildings. A miniature greenhouse is known as a cold frame. The interior of a greenhouse exposed to sunlight becomes significantly warmer than the external ambient temperature, protecting its contents in cold weather.
Many commercial glass greenhouses or hothouses are high tech production facilities for vegetables or flowers. The glass greenhouses are filled with equipment including screening installations, heating, cooling, lighting, and may be controlled by a computer to optimize conditions for plant growth.

Sunlight Greenhouse Abstract

Front slope covered with insulation cover in night; East, West, north side with retaining wall; with single slope covered by film, this type of greenhouse is called sunlight greenhouse. The prototype is single slope glass greenhouse, the front slope covered material is plastic film instead of glass. The characteristics of this type of greenhouse is good insulation, low investment and saving energy, very suitable for China's economic underdeveloped rural areas.
Performance of sunlight greenhouse: energy-saving sunlight greenhouse’s light transmittance rate is above 60%~80%, the internal and external temperature difference can be maintained at more than 21~25 degrees Celsius.

Sunlight Greenhouse Application

1. planting vegetable, for example, tomato, cucumber, peper, chilli, leaf vegetable, etc.

2. planting flower.

3. planting fruits.

4. soilless culture.

5. agriculture trial.

6.. for sightseeing

Steel Structure

Cover material

Name: PO film
Thickness: 8dmm/10dmm/12dmm
Film greenhouse has the following characteristics:
1.keep warm. The greenhouse can be covered with straw or insulation, improve the internal temperature of the greenhouse at night.
2.Light transmittance. The new plastic film has the light transmittance of 80%-90%.
3.Moisture. The film can effectively reduce the evaporation of water inside the greenhouse, to keep the soil and air humidity inside the greenhouse.
4.The utilization rate of the greenhouse is high, and the cost is low, and it is convenient.

Outer Sunshade System

In the summer when indoor temperature rise to a certain value, it can reflect a part of the sun and diffuse sunshine into the greenhouse according to the different shading rate, achieving the purpose of cooling temperature. Close sunshade screen, at the same time the greenhouse temperature drop 4 ~ 6℃, reduce temperature in the greenhouse. By choosing different shading rate curtain, it can meet the sunshine demand of different crops. 

Cooling System

cooling system can decrease the temperature according to the principle of evaporation of water for cooling. System has high-quality wetting pads and the fans with big wind.
The core of cooling system is the wetting pads, which can evaporate water, is made of corrugated fiber paper.it is corrosion resistant and has long working life, because the raw material is added to a special chemical composition. The special wetting pads can ensure the water wets whole wall of wetting pads. When the air goes through the pads, the exchange of water and air on the surface of pads can change the hot air into cool air, then it can humidify and cool the air.

Heating system

Heating system has two types, one type is using the boiler to provide heat, and another uses of electric. Boiler fuel can choose coal, oil, gas and bio fuels. Boilers need laying of pipelines and water warming blower to heat. If use electricity, you need electric warm air blower to heat.

Ventilation system

Greenhouse ventilation system is divided into two kinds, natural and forced ventilation. Glass greenhouse natural ventilation is opening staggered windows on the roof. Film greenhouse use the method of rolling film on both sides to ventilate. Forced ventilation is achieved through installing blowers. In general, we install the cooling system of fans and cooling pad.

Light Compensating System

Greenhouse compensating light, also called plants light, is a required light of supplying light to the plants for growing and developing, instead of sunlight according to the natural law of plant growth and the principle of plants using sunlight for photosynthesis. At this moment most of farmers use high pressure sodium lamp and LED lamp.

Irrigation System

We supply two types of irrigation system, drop irrigation system and spray irrigation system. So you can choose the best one for your greenhouse.

Nursery Bed System

Nursery bed has Fixed bed and movable bed. Movable nursery bed specifications: seedbed standard height 0.75m, can be adjustable a little. Standard width 1.65m, can be changed according to the width of the greenhouse, and length can be customized according to the user requirements; movable bed grid 130 mm x 30 mm (length x width), hot dip galvanized material, high corrosion resistance, good load-bearing capacity, long service life. Specifications for the fixed bed: length 16m, 1.4m wide, height 0.75m, fixed bed area is 179.2 squire meters.

Control System

Greenhouse control system is generally composed of control cabinet, sensors and circuits, which can be realized semi automatic control. You can also use the computer to intelligently control the greenhouse systems through installing networking.

Substrate Culture

Substrate cultivation is the largest method in soilless cultivation. It fixes crop in organic or inorganic substrate, by method of dripping or trickle irrigation, and supplies crops nutrient solution. Culture substrate can be filled into a plastic bag, or laid in the cultivation channels or grooves. Substrate culture nutrient solution is not circulating, known as opening system, which can avoid the spread of disease through the circulation of nutrient solution.

Packing

All the steel material is nude packing.

motor and electric machines are put in carton.

small steel parts are put in bag.