A three-state high-efficiency rainwater collection device based on agricultural greenhouses

Abstract

The invention discloses a rainwater three-state high-efficiency collection device based on an agricultural greenhouse, which belongs to the field of rainwater collection technology, can realize a breakthrough in the traditional collection of liquid rainwater, and innovatively collect gaseous water and solid snow as well, using the collection pipe The unique self-freezing filter screen can not only filter impurities in rain and snow, but also retain water droplets through the dynamic water-conducting fibers on the self-freezing filter screen in heavy snow weather. A thin layer of water film is formed on the ice filter, and it freezes autonomously in a low-temperature environment to form an isolated ice layer that isolates the environment inside and outside the greenhouse. It is used for heat preservation in the environment in the greenhouse to reduce low-temperature damage, and at the same time can support a certain thickness of snow. Auxiliary to keep the greenhouse warm, and when there is a lot of snow, the weight becomes larger and oppresses the ice layer. The snow is separated into dots and falls under the action of the self-freezing filter, and quickly turns into water in the greenhouse and is collected to complete the rainwater protection. The three-state efficient collection of .

Description

technical field [0001] The invention relates to the technical field of rainwater collection, more specifically, to a three-state high-efficiency rainwater collection device based on agricultural greenhouses. Background technique [0002] With the emergence of high molecular polymers - polyvinyl chloride and polyethylene, plastic films are widely used in agriculture. In the early 1950s, Japan, European and American countries successfully applied greenhouse films to cover hotbeds, and then covered small sheds and greenhouses with good results. my country introduced polyvinyl chloride agricultural film in the autumn of 1955. It was first used to cover vegetables in small sheds in Beijing, and achieved the effect of early maturity and increased production. The greenhouse was originally a special equipment for vegetable production. With the development of production, the application of greenhouses has become more and more extensive. At present, greenhouses have been used for po...

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Problems solved by technology

[0004] Therefore, agricultural greenhouses have gradually added rainwater collection devices to collect rainwater in nature for irrigation, which greatly saves water resources. However, the forms of rainwater in nature generally include gaseous water, liquid water and solid snow. The current rainwater collection devices for greenhouses Just staying in the collection of liquid water not only causes waste of other water resources, but also in the face of rain and snow, especially in the heavy snow season, severe snow thickness will even collapse the greenhouse and cause great losses, so the effective use of snow resources On the one hand, the use can reduce the harm to the greenhouse, on the other hand, it can more fully and effectively use water resources for agricultural irrigation in winter

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