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    • 2. 发明申请
    • CONTROL VALVES AND METHOD OF PLANT GROWING USING FLOW CONTROL
    • 控制阀和使用流量控制的植物生长方法
    • WO1989011787A2
    • 1989-12-14
    • PCT/GB1989000643
    • 1989-06-09
    • UNIVERSITY OF STRATHCLYDEGRAHAM, Neil, BonnetteROSS, Donald, S.SZMIDT, Robert, Aleksander, KarasinskiKIRKWOOD, Ralph, Christie
    • UNIVERSITY OF STRATHCLYDE
    • A01G25/16
    • F16K31/001A01G25/167A01G31/02Y02P60/216Y10T137/189
    • Control valves are known which incorporate moisture sensitive material to control the flow of fluid through the valve. Described herein is a control valve (1) which incorporates a moisture sensitive material (4) in contact with and responsive to increasing environment moisture levels. The material (4) acts on a moisture impermeable flexible film (5) to shut off a fluid flow connection between an inlet (6) and an outlet (7), the material (4) being sealed from the inlet (6) and outlet (7) by the film (5). Also the invention provides a method of plant growing in which method one or more plants are grown in a growing medium comprising hydrogel particles charged with aqueous nutrient solution for the plant or plants, the growing medium being housed in a substantially water-impermeable container and the plants extending out of the container, and, when the water content within the hydrogel particles falls below a predetermined level, introducing further nutrient solution into the container.
    • 控制阀是已知的,其包含湿度敏感材料以控制通过阀的流体流动。 这里描述的是一种控制阀(1),其结合有湿度敏感材料(4),其与环境湿度水平的增加接触并响应于其。 材料(4)作用在不透水的柔性膜(5)上以切断入口(6)和出口(7)之间的流体流动连接,材料(4)从入口(6)和出口 (7)通过胶片(5)。 本发明还提供一种植物生长方法,其中一种或多种植物在生长培养基中生长,所述生长培养基包含装有用于植物或植物的水性营养液的水凝胶颗粒,所述生长培养基容纳在基本上不透水的容器中, 延伸出容器的植物,以及当水凝胶颗粒内的水含量低于预定水平时,将更多的营养液引入容器中。