Piston type fertilizer sucking and chemical feeding device achieving accurate proportion adjustment function and fertilizer sucking and chemical feeding method

Abstract

The invention discloses a piston type fertilizer sucking and chemical feeding device achieving an accurate proportion adjustment function and a fertilizer sucking and chemical feeding method. The piston type fertilizer sucking and chemical feeding device comprises a shell, a water inlet and a water outlet, wherein the water inlet and the water outlet are communicated with the shell. A water inlet cavity communicated with the water inlet is formed in the shell. A fertilizer mixing cavity used for mixing fertilizer and water is formed in the shell and communicated with the water outlet. A fertilizer feeding system used for feeding the fertilizer into the fertilizer mixing cavity is arranged below the fertilizer mixing cavity. The feeding amount of the fertilizer is adjustable. A piston assembly used for controlling water to enter the fertilizer mixing cavity from the water inlet is arranged above the fertilizer mixing cavity. The piston type fertilizer sucking and chemical feeding device is arranged in a water pipe, water flow in the water pipe drives the piston type fertilizer sucking and chemical feeding device to work, and power source drive is not needed. The proportion of the fed fertilizer can be adjusted according to actual conditions. No matter how the water pressure and the water amount in the pipe change, the amount of sucked chemicals is always in direct proportion to the volume of water entering the device, and it is guaranteed that the proportion of mixed liquid is constant.

Description

technical field [0001] The invention relates to the technical fields of industry, food, horticulture and agricultural irrigation, in particular to a piston-type fertilizer suction and dosing device and a fertilizer suction and dosing method with precise and adjustable ratio. Background technique [0002] Water and fertilizer integration technology is a new agricultural technology that integrates irrigation and fertilization. Most of the equipment currently used in fertilization is fertilization ponds, Venturi, pressure differential fertilization tanks, fertilization machines and other equipment. Fertilization ponds, Venturi, pressure Poor fertilization tanks and other equipment have problems such as inaccurate fertilization ratio, large pressure loss, and difficulty in adjusting the addition ratio; the fertilizer applicator is a very complicated device, involving many technologies such as electrical, control, and fertilizer element monitoring, and the cost expensive. [000...

AI Technical Summary

Problems solved by technology

[0002] Water and fertilizer integration technology is a new agricultural technology that integrates irrigation and fertilization. Most of the equipment currently used in fertilization is fertilization ponds, Venturi, pressure differential fertilization tanks, fertilization machines and other equipment. Fertilization ponds, Venturi, pressure Poor fertilization tanks and other equipment have problems such as inaccurate fertilization ratio, l

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