Solar greenhouse

　Solar greenhouse is the abbreviation of energy-saving solar greenhouse, also known as greenhouse, which is composed of two side Gables, maintenance wall, support framework and covering materials. It is a unique greenhouse type in northern China. It is a kind of greenhouse that is not heated indoors. It absorbs solar energy through the back wall to realize heat storage and release, and maintains a certain indoor temperature level to meet the needs of vegetable crop growth.

Basic introduction

Solar greenhouse is a relatively simple facility that makes full use of solar energy. In cold areas, vegetables are generally cultivated over the winter without heating, while the cultivation facility for producing fresh vegetables has distinctive Chinese characteristics. It is a unique facility in China. The structure of solar greenhouse varies from place to place, and there are many classification methods. According to the wall materials, there are mainly dry base soil temperature chamber, brick and stone structure greenhouse, composite structure greenhouse, etc. According to the length of the back roof, there are long back slope greenhouse and short back slope greenhouse; According to the form of front roof, there are two fold type, three fold type, arch circle type, micro arch type, etc. According to the structure, there are bamboo wood structure, steel wood structure, reinforced concrete structure, all steel structure, all reinforced concrete structure, suspension structure and hot-dip galvanized steel pipe assembly structure.

The front slope is covered with thermal insulation at night, and the East, West and North are single slope plastic greenhouses with enclosure walls, which are collectively referred to as solar greenhouses. Its prototype is a single slope glass greenhouse. The transparent covering material on the front slope uses plastic film instead of glass, which evolved into an early solar greenhouse. Solar greenhouse is characterized by good thermal insulation, low investment and energy conservation. It is very suitable for the use of economically underdeveloped rural areas in China.

technological development

Although China is the country with the earliest origin of greenhouse cultivation, by the 1960s, China's greenhouse industry had always been in a state of small-scale, low-level and slow development. The introduction of plastic film mulching technology into China in the early 1970s played a certain role in heat preservation and moisture retention. With the development of economy and the progress of science and technology, plastic greenhouses and solar greenhouses appeared in the 1970s and 1980s. Since the 1990s, China's facility agriculture has gradually developed in the direction of large-scale, intensive and scientific, and the technical level has been greatly improved.

With the launch of relevant national scientific research projects in recent years, on the basis of learning from, absorbing and digesting foreign advanced technological achievements, China's facility agriculture has developed rapidly, and the area and level of facilities have been continuously improved.

"Solar greenhouse" industry, as the main body of China's facility agriculture industry, has become the most efficient industry in agricultural planting in recent 20 years. It has made historic contributions to solving the off-season supply of vegetables in winter, increasing farmers' income, saving energy, promoting the adjustment of agricultural industrial structure, driving the development of relevant industries, resettling employment, avoiding environmental pollution caused by greenhouse effect, improving the living standard of urban and rural residents and stabilizing society.

Solar greenhouse is a relatively simple facility that makes full use of solar energy. In cold areas, vegetables are generally not heated for overwintering cultivation, while the cultivation facility for producing fresh vegetables. Solar greenhouse has distinctive Chinese characteristics and is a unique facility in China. The structure of solar greenhouse varies from place to place, and there are many classification methods.

Classification:

1> According to the wall materials, there are mainly dry base soil temperature chamber, masonry structure greenhouse, solar greenhouse, composite structure greenhouse, etc.

2> According to the form of front roof, there are two fold type, three fold type, arched original type, micro arched type, etc.

3> According to the structure, there are bamboo wood structure, steel wood structure, reinforced concrete structure, all steel structure, all reinforced concrete structure, suspension structure and hot-dip galvanized pipe assembly structure.

characteristic:

Solar greenhouse is characterized by good thermal insulation, low investment and energy conservation. It is very suitable for the practical use of economically underdeveloped rural areas in China.

Supporting equipment:

Equipped with electric thermal insulation roller shutter system, it has good thermal insulation performance in winter. In addition, the greenhouse can also be equipped with external shading system, natural ventilation system, wet curtain fan system, heating system, control system, lighting and other systems, which can better regulate the greenhouse environment