Valve-adjustment-type proportional fertilization pump
A proportional fertilization and adjustment technology, which is applied in the direction of fertilization devices, variable capacity pump components, pump components, etc., can solve the problems of too many proportional fertilization pump parts, high manufacturing precision requirements, and cannot be popularized on a large scale, and achieve pressure application The effect of wide range, small energy loss and simple structure
Active Publication Date: 2020-09-04
JIANGSU UNIV
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Problems solved by technology
However, due to too many parts and high manufacturing requirements, the proportional fertilization pump is expensive and cannot be popularized on a large scale.
Domestic utility model patent CN201220109480.1 discloses a hydraulically driven proportional pump, which can rely on pressure water to suck fertilizer (drug) liquid into the water in the pipeline, which can ensure the accuracy of fertilization, but the structure is complicated and the manufacturing accuracy is high.
Domestic invention patent CN201510771913.8 discloses a hydraulically driven fixed-ratio fertilization pump. The reversing mechanism is not affected by the spring, and the reversing impact is small, but it needs to be connected in parallel in the pipeline when it is used, and the loss is relatively large.
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[0022] Below in conjunction with accompanying drawing, the patent of the present invention is further described.
[0023] The working principle involved in this embodiment is that the water entering the valve-adjustable proportional fertilization pump enters the driving chamber through the inlet pipe in the chamber, and as the pressure in the driving chamber increases, the driving piston and the fertilizer suction piston fixed to it will be pushed down And squeeze the fertilizer liquid in the fertilizer suction chamber into the fertilizer mixing chamber, thereby driving the reversing structure to move to perform the work of fertilizer discharge and fertilizer mixing.
[0024] Such as Figure 1 to Figure 10 As shown, the valve-adjustable proportional fertilization pump of the present invention has the following components and matching methods: the inlet threaded pipe 1 and the outlet threaded pipe 7 are straight pipe sections with equal pipe diameters, integrated with the drivi...
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The invention relates to a valve-adjustment-type proportional fertilization pump. The pump comprises an inlet threaded pipe, an outlet threaded pipe, a driving cavity, a fertilizer mixing cavity, a fertilizer suction cavity and a fertilizer suction pipe, wherein a three-way valve is mounted between the inlet threaded pipe and the outlet threaded pipe; and the operation process of the pump is characterized in that water entering the valve-adjustment-type proportional fertilization pump enters the driving cavity through an intra-cavity inlet pipe, and along with the increase of the pressure in the driving cavity, a driving piston and a fertilizer suction piston fixed to the driving piston are pushed to move downwards, extrude fertilizer liquid in the fertilizer suction cavity and enable thefertilizer liquid to enter the fertilizer mixing cavity, so that a reversing structure is driven to move to discharge and mix fertilizer. The valve-adjustment-type proportional fertilization pump is simple in structure, low in manufacturing cost, small in head loss and high in fertilization precision.
Description
technical field [0001] The invention relates to a water and fertilizer integrated fertilization device in the field of agricultural equipment, and belongs to the technical field of valve-adjustable proportional fertilization pumps. Background technique [0002] Water and fertilizer integration technology has attracted widespread attention due to its advantages of efficient use of water and fertilizer and precise fertilization, and has been widely promoted and applied in my country. As an integral part of the integrated water and fertilizer system, fertilization equipment is usually installed at the head of the irrigation system. Its main function is to fully mix irrigation water and fertilizer solution in a certain proportion and then inject the mixed solution into the irrigation pipe network. Among the commonly used fertilization equipment in China, the hydrodynamic proportional injection pump, also known as the proportional fertilization pump, is the fertilization equipmen...
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IPC IPC(8): F04B53/10F04B53/00A01C23/04
CPCF04B53/10F04B53/00A01C23/042
Inventor 李红张乾坤汤攀陈超
Owner JIANGSU UNIV