FARMLAND IRRIGATION RESEARCH INSTITUTE, CHINESE ACADEMY OF AGRICULTURAL SCIENCES;中国农业科学院农田灌溉研究所;FARMLAND IRRIGATION RESEARCH INSTITUTE; CHINESE ACADEMY OF AGRICULTURAL SCIENCES
发明人:
GAO, Shengguo,高胜国,GAO, Renxiang,高任翔
申请号：
CNCN2016/090630
公开号：
WO2016/161992A2
申请日:
2016.07.20
申请国别(地区):
CN
年份:
2016
代理人:
摘要：
The present invention belongs to the technical field of farmland irrigation, and relates in particular to a novel pressure-less irrigation device. The present invention evenly conveys irrigation water to crop plant root systems, and on the basis of a "connector" principle and the size of a flow cross-section, necessarily satisfies a "loss-less conveyance" very low flow speed requirement of the "connector" in a static pressure dominant operating state, thereby eliminating the problem of irrigator blockage which accompanies energy dissipation. Under the effect of a capillary force of the soil and a water potential energy difference of the soil, the plants and the atmosphere, water of a soil saturation water layer within a soil saturation water layer formation tube enters the atmosphere via crop plant transpiration so that the height of the soil saturation water layer falls, and on the basis of the "connector" principle, a water supply water level control pool at a head portion is triggered to replenish the water. The water consumption and water replenishment are adaptive, and human intervention and additional energy are not required. The present invention implements low-cost "fool-proof" automatic irrigation and truly even irrigation.La présente invention appartient au domaine technique de l'irrigation agricole et concerne en particulier un nouveau dispositif d'irrigation sans pression. Le dispositif selon l'invention transfère uniformément l'eau d'irrigation vers les systèmes radiculaires des plantes cultivées, et sur la base d'un principe à "raccord" et de la taille d'une section transversale d'écoulement, satisfait obligatoirement à une exigence de très basse vitesse d'écoulement à "distribution sans perte" du "raccord" dans un état de fonctionnement dominant à pression statique, ce qui permet d'éliminer le problème du blocage du dispositif d'irrigation qui accompagne la dissipation d'énergie. Sous l'effet d'une force capillaire du sol et d'une différence en énergi
