Sewage suction device for filter for agricultural irrigation

Abstract

The invention discloses a sewage suction device for a filter used in agricultural irrigation, which mainly includes a sewage suction pipe and a plurality of high-pressure suction nozzles, and the multiple high-pressure suction nozzles are evenly fixed on the outer wall of the sewage suction pipe and communicated with the sewage suction pipe , the plurality of high-pressure suction nozzles are all provided with high-pressure nozzles inside, and the high-pressure nozzles can spray high-pressure water flow. The high-pressure nozzle is concentric with the high-pressure suction nozzle, and a high-pressure pipe concentric with the sewage suction pipe is arranged inside the sewage suction pipe. The high-pressure nozzles are all communicated with the high-pressure pipe, and the high-pressure pipe can obtain high-pressure water flow from a high-pressure pump. In the present invention, high-pressure nozzles concentric and coaxial with the high-pressure suction nozzles of the original sewage suction device are provided. High-pressure water flow can be sprayed from the high-pressure nozzles to spray the inside of the fine filter screen, so that both sides of the filter screen can be thoroughly cleaned. The moment the fouling is washed away by the high-pressure nozzle, the suction nozzle will suck. After such improvement, it can realize spraying and suction at the same time, so that the dirt suction capacity is obviously improved.

Description

technical field [0001] The invention relates to the field of agricultural irrigation, in particular to a sewage suction device for a filter used in agricultural irrigation. Background technique [0002] When irrigating crops, a filter is required to filter the irrigation water. Due to the poor water quality in some areas and the long-term operation of the equipment, the inner surface of the filter screen has a lot of fouling and cannot pass through the high-pressure nozzle. The impact force separates it from the inner surface of the filter screen, so that the suction nozzle cannot suck the fouling into the sewage pipe, and because the high-pressure nozzle and the suction nozzle are not in the same position, the fouling washed away by the powerful jet from the high-pressure nozzle will be washed away later. It reattaches to the inner surface of the filter screen within tens of seconds or even a few seconds, causing some of the accumulated dirt to reattach to the surface of th...

AI Technical Summary

Problems solved by technology

[0002] When irrigating crops, a filter is required to filter the irrigation water. Due to the poor water quality in some areas and the long-term operation of the equipment, the inner surface of the filter screen has a lot of fouling and cannot pass through the high-pressure nozzle. The impact force separates it from the inner surface of the filter screen, so that the suction nozzle cannot suck the fouling into the sewage pipe, and because the high-pressure nozzle and the suction nozzle are not in the same position, the fouling washed away by the powerful jet from the high-pressure nozzle will be washed away later. It reattaches to the inner surface of the filter screen within tens of seconds or even a few seconds, causing some of the accumulated dirt to reattach to the surface of the filter screen before it can be sucked by the suction nozzle. The sucking effect has a certain influence, which greatly reduces the sewage suction and sewage discharge capacity

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