Venturi variable fertilizing device based on speed-adjustable water pump
A fertilization device, Venturi technology, applied in the field of automatic precision water and fertilizer integration device, can solve the problems of high failure rate of high-frequency solenoid valve, inability to adjust the pressure separately, and easy blockage of the valve core, so as to achieve easy maintenance, reduce disturbance factors, The effect of low failure rate
Pending Publication Date: 2018-05-04
王伟宏
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Problems solved by technology
[0009] In view of the high failure rate of the high-frequency solenoid valve of the existing fertilization machine, the valve core is easy to block, and multiple fertilization and acid channels adopt a pressure source, the pressure cannot be adjusted separately, and the energy consumption is high. The present invention proposes a method based on adjustable speed. Venturi variable fertilization device with water pump
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[0024] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.
[0025] like figure 1 As shown, the Venturi variable fertilization device based on the adjustable speed water pump includes: water inlet float valve 1, fertilizer applicator controller 2, main water pump 3 of the fertilizer applicator, EC value sensor and PH value sensor 4, water and fertilizer premixing tank 5, Low liquid level switch 6, adjustable speed water pump 7, Venturi tube 8, flow meter 9, irrigation solenoid valve group 10;
[0026] The water and fertilizer premixing tank 5 is connected with a water inlet pipeline 100, an outlet pipeline 200, several fertilization channels 300 and an acid application channel 400; the water inlet pipeline 100 is provided with a water inlet float valve 1; the outlet pipeline 200 is provided with a fertilizer applicator Main water pump 3, EC value sensor and pH value sensor 4, irrigation solenoid valve group 10...
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The invention discloses a Venturi variable fertilizing device based on a speed-adjustable water pump. The Venturi variable fertilizing device is characterized in that the speed-adjustable water pump is adopted to provide pressure for inlets of Venturi tubes on each or each group of fertilizer and acid applying channels; by adjusting the lift of the speed-adjustable water pump, the pressures of theinlets of the Venturi tubes on each or each group of fertilizer and acid applying channels are adjusted, and stepless smooth real-time control over the fertilizer and acid applying amount is realized. The fertilizer and acid applying channels can be independently (single group) work or simultaneously (multiple groups) work without mutual interference. The Venturi variable fertilizing device is matched with EC value and PH value sensors and a fertilizer applicator controller so as to realize closed-loop accurate control over an EC value and PH value of fertilizer water irrigation.
Description
technical field [0001] The invention relates to an automatic and precise water and fertilizer integration device, in particular to a Venturi variable fertilization device based on an adjustable speed water pump. Background technique [0002] Precision water and fertilizer integrated irrigation technology is the most critical comprehensive management technology measure in modern agricultural production technology. It injects fertilizer into irrigation water with an appropriate formula, and fertilization and irrigation are carried out simultaneously, which greatly improves the use efficiency of water and fertilizer and significantly The yield and quality of crops have been improved, and the marginal areas such as arid and semi-arid areas have achieved high agricultural production. At present, irrigation and fertilization technology has been widely used in developed countries, such as Israel and the Netherlands, and almost all horticulture uses integrated water and fertilizer ir...
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IPC IPC(8): A01C23/04A01C23/00F04B49/06
CPCA01C23/002A01C23/007A01C23/04F04B49/06
Inventor 王伟宏
Owner 王伟宏