System for water-saving irrigation and salt discharge in saline-alkali land

Abstract

The invention discloses a system for water-saving irrigation and salt discharge in a saline-alkali land. The system comprises an anti-corrosion salt discharge pipe and a plastic blind groove, wherein water seepage holes are formed in the surface of the anti-corrosion salt discharge pipe; outer threads are installed on the outer side of the anti-corrosion salt discharge pipe; a salt discharge pipe connector is installed on the anti-corrosion salt discharge pipe; a PVR plastic connecting assembly is connected under the anti-corrosion salt discharge pipe; a saline-alkali sensor is installed on the PVR plastic connecting assembly; a U-shaped connecting pipe is installed under the PVR plastic connecting assembly; a non-woven fabric layer is installed on the plastic blind groove; a filtering layer is installed on the non-woven fabric layer; and a saline-alkali soil layer is installed on the filtering layer. According to the invention, good salt discharge effects can be achieved without use of a lot of water resources, so that excessive consumption of the water resources can be avoided, and reverse penetration of salt can be prevented; and the filtering layer is disposed and has very high adsorbability to various harmful substances.

Description

technical field [0001] The invention relates to the technical field of salt discharge equipment, in particular to a water-saving irrigation and salt discharge system for saline-alkali land. Background technique [0002] The core of the salt drainage system is a parallel and interconnected underground drainage salt pipe network system arranged at a certain distance along the drainage direction within a certain depth below the surface of the salt water area. The buried depth and spacing of the buried pipes shall be determined according to the local hydrogeological conditions, and the principle of maximizing the removal of shallow saline water shall be the principle. The hidden pipe adopts PVC perforated corrugated pipe, and the pipe diameter is usually 80mm or 110mm. In order to prevent fine soil particles from entering the pipe and cause silting, and to increase the water permeability around the pipe, a layer of sand filter material with a thickness of about 8cm should be wra...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a water-saving irrigation and salt discharge system for saline-alkali land to solve the problems of high production cost and high water consumption in the background technology mentioned above

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