Combined multifunctional filtering device

Abstract

The invention discloses a combined multifunctional filtering device, belonging to the technical field of filtration. The key points of the technical scheme are as follows: a tank body of the combined multifunctional filtering device is internally separated into a sand stone medium filtering cavity, a wedge-shaped net-type filtering cavity and a clean water collecting cavity by an upper baffle and a lower baffle sequentially from top to bottom; the outer side of the tank body is provided with an upper pressure-difference switch, a lower pressure-difference switch and a control cabinet respectively; the bottom of the tank body is provided with a tank body support frame. The combined multifunctional filtering device is compact in structure, and meanwhile has advantages of the sand stone medium filter and a brush-type cleaning filter, the occupied area is small, the water flow is smooth, the head loss is low, and the automation degree is high, meanwhile, uniform fertilize uniformity and air entrapping backflushing can be realized, the device utilization ratio is increased, the number of auxiliary equipped devices is reduced, and the cost is saved.

Description

technical field [0001] The invention belongs to the technical field of filtration, and in particular relates to a composite multifunctional filtration device. Background technique [0002] At present, the filters used in the field of agricultural irrigation mainly include laminated filters, sand media filters, centrifugal filters and mesh filters. Sheet filter, centrifugal filter with laminated filter, sand filter with mesh filter, etc. A single filter can only achieve a single filtering function, and the actual filtering needs can only be met after combined application. However, there are many disadvantages in the filter group used in combination. The increase in the number of filter stages will inevitably increase the difficulty of pipeline connection, and the variety of pipe fittings will increase the cost of the system and increase the space occupied by the equipment. The increase of pipe fittings, the increase of pipes, and the bending of the water flow path increase ...

AI Technical Summary

Problems solved by technology

A single filter can only achieve a single filtering function, and the actual filtering needs can only be met after combined application

However, there are many disadvantages in the filter group used in combination. The increase in the number of filter stages will inevitably increase the difficulty of pipeline connection, and the variety of pipe fittings will increase the system cost and increase the space occupied by the equipment.

The increase of pipe fittings, the growth of pipelines, and the bending of water flow channels increase the head loss of the filtration system, which increases the power of the first matching water pump.

At the same time, after a period of time, the multi-stage filter needs to be rinsed. The more stages there are, the more water will be consumed for separate flushing, which increases the frequency of flushing and also causes a lot of waste of water resources, which reduces the efficiency of equipment.

At the same time, the existing fertilization method is mainly to inject fertilizer in the pipeline. In many cases, the fertilizer cannot be fully mixed with water after injection, resulting in some plots with more fertilizer and some plots with less fertilizer, resulting in uneven fertilizer injection. question

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