Vented-top agricultural plastic tunnel
A technology of plastic greenhouses and greenhouses, applied in the fields of application, agriculture, greenhouse cultivation, etc., to achieve high efficiency, prevent the harm of viral diseases, and directly dissipate heat
Inactive Publication Date: 2015-01-14
ANHUI SCI & TECH UNIV
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Problems solved by technology
It can be seen that the existing practice of setting vents at the lower positions of both sides of the plastic greenhouse needs to be improved
Method used
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[0018] An agricultural plastic greenhouse with ventilation at the top has a greenhouse frame 1, a laminating line 4 and a plastic film. The height of the greenhouse is 2m, and the top film is two overlapping plastic films 12 and 23 on the arc-shaped top of the greenhouse. The overlapping width of the two films at the top is 25cm, and they are pressed in the middle of the two bow frames with a film-pressing line. plastic film. When the temperature in the shed is high, people stand in the shed and raise their hands to peel off the overlapping parts of the two roof films, open the skylight for ventilation; when the ventilation is over, reverse the operation, close the skylight for heat preservation.
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The invention discloses a vented-top agricultural plastic tunnel. The vented-top agricultural plastic tunnel is structurally characterized in that a top film is composed of two plastic films, and the two plastic films are 20-30cm overlapped at the top of the tunnel. The joint of the two plastic films is spread to open a 'skylight' by hand from the top of the tunnel in order to allow ventilation, and hot air in the tunnel is allowed to disperse out of the tunnel. The vented-top agricultural plastic tunnel has the advantages that ventilating and heat dissipating are highly efficient, operating is convenient, great changes in the temperature of the tunnel are avoided, surface-sweeping wind is prevented, early maturation and high yield of tunneled crops are favored, fewer insects invade, and spread of diseases and insects is reduced.
Description
technical field [0001] The invention relates to the technical field of ventilation opening design of agricultural plastic greenhouses, in particular to an agricultural plastic greenhouse with top ventilation. Background technique [0002] The ventilation design of agricultural plastic greenhouses is an important link related to the efficiency and safety of crop cultivation in plastic greenhouses. The agricultural plastic greenhouse is a facility that accumulates and converts solar energy, and converts part of the sun's light energy into heat energy to meet the needs of crop growth. During the use of plastic greenhouses, it is also necessary to carry out proper ventilation according to the temperature changes in the shed, and adjust the temperature in the shed to meet the best needs of crop growth in different periods, neither too high nor too low. If the temperature in the greenhouse is too low, it will inhibit the growth of the crops in the greenhouse, delay the growth and...
Claims
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IPC IPC(8): A01G9/14A01G9/24
CPCA01G9/1438A01G9/242Y02A40/25
Inventor 林平
Owner ANHUI SCI & TECH UNIV
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