1. A slope-type soil greenhouse This type of greenhouse is mostly a temporary civil-structure greenhouse. The back wall and both side walls are earth walls. The back roof is covered with soil, the front roof buckles the plastic shed film, and the front roof is connected to the ground level. The included angle is 32 degrees, and the column height in the greenhouse is 1.5 meters. Due to the short greenhouse space, the insulation effect is good. The cost of building this greenhouse is low.

2. The modified greenhouse of Beijing This greenhouse has a width of 6-7m, an earth structure or a masonry structure, and the transparent roof is covered with glass or agricultural film. The length and height ratio of the skylight is 2:1, the angle between the ground window and the ground is 45 degrees, the angle between the sunroof and the ground is 22 degrees, and the heating is heated with a flue or soil. Because the transparent roof of this greenhouse consists of two angles, the indoor lighting is good, but due to the large greenhouse space, poor insulation effect at night, winter consumption, mainly for early spring vegetable cultivation and nursery.

3. Vertical window type greenhouse This is the type of greenhouse that is currently built in the courtyard. It is mostly covered with agricultural membranes for civil engineering structures. There are also pillarless greenhouses with welded masonry steel structures. The windows are short, and the angle to the ground is 80-90. Degree, the angle between the sunroof and the ground is 27-29 degrees. This type of greenhouse has better insulation effect than Beijing's improved greenhouses, and is easy to operate. In particular, the brick and stone structure has no pillar greenhouses, and the lighting is better. In the winter, it is heated with flue or soil heating to save fuel. It is mainly used for vegetable production throughout the year and winter and spring vegetable seedlings.

4. Plastic film sunlight Photosynthesis greenhouse This greenhouse is mostly a simple greenhouse with civil engineering structure. It is one of the main types of greenhouses for rural courtyard construction. The materials can be obtained locally; the three walls are made of soil, covered with agricultural film, and the construction cost is low. The heat preservation effect is good, and the structure belongs to a vertical window type greenhouse. Solar greenhouses are energy-efficient greenhouses. The key to winter insulation is the three walls and the transparent roof. It is characterized by the fact that the earth wall is thicker than ordinary earthen greenhouses. If brickwork is used, it should be made into a hollow wall. The transparent covering should cover two layers of grasshoppers or cover quilts at night. Sunlight greenhouses are mainly used for winter, early spring and late autumn vegetable production and nursery.

5. Relying on energy-saving greenhouses This type of greenhouse is based on housing or hillsides, with sufficient sunlight, good insulation, and low construction costs. Relying on the greenhouses built on hillsides or hills, three walls are built with the help of the terrain. They are suitable for high-pitched and unbalanced courtyards. They are selected to fill the sunny slopes, fill columns, and cover the roofs. The front roof is covered with agricultural film.

The hillside relies on greenhouses to save three walls, and the courtyard relies on greenhouses to save one back wall. Because the insulation is good, the greenhouse can save more than half of the fuel in the winter. This kind of greenhouse can also be used for the large-scale construction of barren hills and barren slopes. Use animals and plants to complement each other, grow vegetables in front, raise chickens, raise pigs, and raise cattle. The heat source comes from the sunlight and the heat released from livestock. It is not necessary for the winter to heat, and the greenhouse can still maintain a temperature above zero. It is an ideal greenhouse for the development of aquaculture in the courtyard.

With this kind of greenhouse chickens, chickens can not only emit a lot of heat, but also increase the greenhouse carbon dioxide, thereby increasing the yield of vegetables; due to the indoor sunshine, chickens grow faster, and high yields. If dairy cattle are raised, the daily output of cows per day will increase by more than 1.5kg in winter, which will benefit crops and livestock.

The construction of aquaculture greenhouses in the courtyard has a rapid development and is mainly used for raising pigs, raising cattle, and raising fish. The pigs raised in the greenhouse are warmer than the free-range or open-cabinet winters and have plenty of sunlight. In addition to greenhouse insulation and light exposure, livestock and poultry own heat can create the most suitable microclimate conditions for the normal growth of livestock and poultry, reduce unreasonable heat loss, improve the effective utilization of feed, and can fully tap the potential of animal production.

Laser Measurement Solutions

Chengdu JRT is a world leader in the design and manufacture of highly accurate, precise and digital and analogue laser measurement sensors, including serial laser distance transducer,usb laser distance module,distance module ttl laser sensor rs232/RS485/Bluetooth. These Laser Distance Sensor products are widely used in many smart industrial precise measurement soluitons: robot,crane,etc. This laser distance measure technology, combined with the high speed, 1mm high resolution and accurate measurement, specially the micro laser sensor(41*17*7mm),will confidently and accurately solve your precision measurement problem.

Laser Distance Measurement,Laser Measurement Sensors,Laser Distance Measurement,Smart Measure Sensor

Chengdu JRT Meter Technology Co., Ltd , https://www.rangingsensor.com