Method and device for preventing irrigation electronic control valve from being out of operation

Abstract

The invention discloses a method and device for preventing an irrigation electronic control valve from being out of operation. A water channel in a magnetic valve is isolated from an upper cavity body through an elastic packing cup which is placed between a valve element assembly and a valve cavity, the upper cavity body is connected with a control channel, and meanwhile a whole control mechanism is isolated from a water route through a pre-guiding film sheet to prevent sediment and other sundries from affecting the operation of the control mechanism and to improve the work reliability of the electronic control valve. Due to the fact that the pre-guiding film sheet is used for isolating the whole control mechanism from water, the sediment and other sundries can be prevented from affecting the normal work of the control mechanism. The bore diameter of an outer circulation channel is enlarged, so that the water containing the sediment and the sundries flows successfully, the process that the water flows in and out of the valve cavity is accelerated, and a switch of the electronic control valve is controlled fast and flexibly. The water inlet process and the water outlet process of the upper cavity body are respectively controlled through a double-direction micromotor, in each water draining process, the water inside the valve cavity can be drained thoroughly, the sediment and the sundries in the upper cavity body are brought away, the phenomenon that a large amount of sediment is deposited inside the valve cavity is avoided, and the working reliability and the working stability of the electronic control valve are improved.

Description

technical field [0001] The invention relates to a method and a device for preventing work failure of an electric control valve for irrigation, and belongs to the technical field of improving the work reliability of the electric control valve. Background technique [0002] The control channels of the existing electric control valves for irrigation all use internal channels, and due to the limitation of structure and function, smaller apertures are used, generally 1.5mm-2.5mm. In practical application, due to the small pore size of the control channel, it is often blocked by sediment or impurities in the water. In addition, when the current electric control valve for irrigation works, the water in the valve cavity is not completely emptied, and a large amount of silt or impurities will be deposited to cause the work of the electric control valve to fail. Therefore, the working state of the existing electric control valve for irrigation is extremely unstable, the reliability i...

AI Technical Summary

Problems solved by technology

In actual application, due to the small pore size of the control channel, it is often blocked by sediment or impurities in the water

In addition, when the current electric control valve for irrigation is working, the water in the valve cavity is not completely emptied, and a large amount of sediment or impurities will be deposited, which will cause the work of the electric control valve to fail.

Therefore, the working state of the existing irrigation electronic control valve is extremely unstable, the reliability is poor, and frequent maintenance is required, which also increases the workload and maintenance cost of daily maintenance.

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