Filtering and backwashing system for agricultural irrigation

Abstract

The invention discloses a filtering and backwashing system for agricultural irrigation. The system comprises a tank body, a water inlet and a water outlet are formed in the two ends of the tank body respectively, backwashing water inlet pipes are installed on the two sides of the water outlet, and electronic pressure gauges and electromagnetic valves are installed in the water inlet, the water outlet and the backwashing water inlet pipes. A back pressure valve is installed in each backwashing water inlet pipe, the electronic pressure gauges and the electromagnetic valves are connected with a microprocessor through control lines, a pressure converter is further installed between the electronic pressure gauges and the microprocessor which are arranged between the water inlet and the water outlet, and a filter plate is installed in the tank body. Quartz sand is movably placed on the filter plate, and a blow-off pipe is installed on the side face of the tank body. The whole system can automatically detect and start a backwashing system according to the water pressure, the backwashing efficiency and the blow-off capacity are high, manual intervention is not needed, washing and dirt removal can be conducted in time according to the actual requirement and the needed pressure, and energy conservation and environmental protection are achieved while the blow-off capacity is achieved.

Description

technical field [0001] The invention relates to the technical field of irrigation equipment, in particular to an agricultural irrigation filtering and backwashing system. Background technique [0002] With the gradual development of agricultural irrigation in the direction of precision and automatic control, the requirements for irrigation water quality are also gradually increasing, and the content of visible impurities in water sources is one of the most important parameters, while filtration is the simplest and most effective method for water quality treatment. The emergency treatment method, the filter is an indispensable water purification treatment equipment in the agricultural irrigation micro-irrigation system, and the filtering effect is directly related to the normal operation of the irrigation system and the service life of the system, and backwashing is the key to ensure the normal use of the filter. essential link. [0003] At present, the conventional backwash...

AI Technical Summary

Problems solved by technology

[0003] At present, the conventional backwashing and impurity removal systems mostly use manual control of the valve switch, and the washing frequency is mostly judged manually based on the water volume and water quality after filtration and experience. If the water quality of the irrigation system is poor, frequent cleaning is often required, which will not only increase It increases the labor intensity and affects the normal operation of the system. If the manual processing is not timely, it will easily lead to poor filtration, and the filtration effect and efficiency will be greatly reduced.

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