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Film full-open type arch-shaped film greenhouse

A film and greenhouse technology, applied in the field of film full-open arched film greenhouses, can solve the problems of adverse effects on crop growth, waste of high-quality land resources, and difficulty in cooling

Pending Publication Date: 2021-05-07
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are three defects: 1) the temperature in summer is too high, and it is difficult to cool down, which has an adverse effect on the growth of crops; 2) the aging of plastic films and the adhesion of dust lead to a decrease in light transmittance, which affects plant growth and development, and affects yield and production. quality; 3) In order to improve the ventilation effect, the area of ​​the plastic greenhouse is controlled at 2000m 2 Below, ventilation space needs to be reserved between greenhouses, and the land utilization rate is 76%-86%. In some large agricultural parks, the utilization rate is even lower, wasting limited high-quality land resources
Although it is also possible to set up wet curtains and sunshade nets to reduce the temperature, the increased cost and reduced light intensity limit its application.

Method used

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  • Film full-open type arch-shaped film greenhouse
  • Film full-open type arch-shaped film greenhouse
  • Film full-open type arch-shaped film greenhouse

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] A 5-span standard 8432-type greenhouse (single-span length 40m, span 8m), shed area 1600m 2 . The greenhouse construction is carried out according to the conventional greenhouse specifications, and the distance between arches and stems is 1.33 meters. The conventional greenhouse can be changed into a fully open plastic greenhouse by adding the following projects:

[0074] 1) Move up the lamination grooves of the skylights on both sides of the original arched shed near the gutter to a distance of 50cm from the vault.

[0075] 2) From north to south, the 1st-2nd, 14th-17th, and 30th-31st arches are all equipped with film-pressing grooves and plastic films, forming three covered and fixed plastic film areas. The same addition works are done for each span of the vault.

[0076] 3) Install two hooks at the bottom of the gutter directly below the sides of the 15th and 16th arches. The same addition works are done for each span of the vault.

[0077] 4) Take the 15th and ...

Embodiment 2

[0082] The area of ​​a shed is 160000m2 2 Greenhouse (north-south building, 400m long from north to south, 4m bays from north to south, 100 bays, 1.33m distance between arches, 400m long from east to west, 8m single arch span from east to west, 50 spans in total), the construction is carried out according to the conventional greenhouse specifications, and the following projects are added :

[0083] 1) Move the original skylight lamination groove of each span of the vault to 50cm away from the vault.

[0084] 2) From north to south, No. 1-2, No. 14-17, No. 30-31, No. 44-47, No. 60-61, No. 74-77, No. 90-91, No. 104-107, No. 120-121 , No. 134-137, No. 150-151, No. 164-167, No. 180-181, No. 194-197, No. 210-211, No. 224-227, No. 240-241, No. 254-257, No. 270-271 , No. 284-287, and No. 299-300 arches are all equipped with laminating grooves and plastic films. The same addition works are done for each span of the vault.

[0085] 3) The 15th and 16th, 45th and 46th, 75th and 76th...

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Abstract

The invention discloses a film full-open type arch-shaped film greenhouse. The width of a skylight can be freely opened according to the temperature requirement of the greenhouse under the conditions of not changing a physical structure of an existing greenhouse, not increasing too much cost, not causing a complicated structure and not excessively repairing and maintaining, even the whole greenhouse film can be completely rolled to the vault in sunny days in summer, high-temperature harm is not caused, and the illumination condition of crops in the greenhouse can be improved. Meanwhile, the service life of the film can be prolonged, the land utilization rate is increased, typhoon, strong wind and snow damage is resisted, and secondary salinization damage is reduced.

Description

technical field [0001] The invention relates to the technical field of modern agricultural facilities, in particular to a film full-open arch film greenhouse. Background technique [0002] Plastic greenhouses are the fastest growing and largest agricultural production facilities in the world. They have multiple functions such as heat preservation and rain shelter, and play an active role in increasing production, improving quality, and adjusting production periods. They are the development direction of modern agriculture. However, there are three defects: 1) the temperature is too high in summer, and it is difficult to cool down, which has an adverse effect on the growth of crops; 2) the aging of plastic films and the adhesion of dust lead to a decrease in light transmittance, which affects plant growth and development, and affects yield and production. quality; 3) In order to improve the ventilation effect, the area of ​​the plastic greenhouse is controlled at 2000m 2 Next...

Claims

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Application Information

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IPC IPC(8): A01G9/14A01G9/22
CPCA01G9/1407A01G9/227Y02A40/25
Inventor 赵茂香王磊马超张才喜王世平纠松涛
Owner SHANGHAI JIAO TONG UNIV
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