Novel turbulent flow drip irrigation pipeline used for improvement of saline and alkaline land

Abstract

The invention provides a novel turbulent flow drip irrigation pipeline used for improvement of a saline and alkaline land. The novel turbulent flow drip irrigation pipeline comprises a water pipe, the water pipe comprises an inner core pipe and an outer wall pipe, an annular flow channel is formed between the core pipe and the wall pipe, a plug is arranged on the wall pipe of the water pipe, a flow-dividing backflow cavity is formed between the portion, close to one end of the plug, of the core pipe and the plug, and a water flow outlet is formed in the portion, close to the backflow cavity, of the core pipe; a support is arranged on the annular flow channel between the core pipe and the wall pipe and is a closed cavity, one side of the support makes contact with the inner surface of the wall pipe, the other side of the support is connected with the core pipe, and through holes communicated with the closed cavity in the support are formed in the core pipe. The double-layer pipe is adopted for conveying, backflow water can be used for supplementing the water shortage portion of the rear path to increase the amount of water flow, the water amount of the rear path and that of the front path are balanced, the water yield of the whole drip irrigation pipeline is uniform, plant death caused by uneven irrigation is effectively avoided, the use effect is good, and the survival rate of plants is increased to over 95% from original 80%.

Description

technical field [0001] The patent application of the present invention relates to the field of saline-alkali land improvement, in particular to an irrigation system for saline-alkali land improvement, specifically a new turbulent drip irrigation pipeline for saline-alkali land improvement. Background technique [0002] At present, in the improvement process of saline-alkali land, many plants are not irrigated by large-scale flood irrigation, because the saline-alkali land has little fresh water and water resources are in short supply, so water-saving irrigation can only be used, such as drip irrigation or other highly targeted irrigation methods. At present, there is a This kind of drip irrigation pipe is provided with holes on the pipe. When the water flows through the holes, part of the water flow will flow out of the holes and directly act on the roots or around the roots of the plants to achieve targeted irrigation. However, the water pipes used for this kind of irrigatio...

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Problems solved by technology

[0002] At present, in the improvement process of saline-alkali land, many plants are not irrigated by large-scale flood irrigation, because the saline-alkali land has little fresh water and water resources are in short supply, so water-saving irrigation can only be used, such as drip irrigation or other highly targeted irrigation methods. At present, there is a This kind of drip irrigation pipe is provided with holes on the pipe. When the water flows through the holes, part of the water flow will flow out of the holes and directly act on the roots or around the roots of the plants to achieve targeted irrigation. However, the water pipes used for this kind of irrigation are too common. , the problem after that is that along the direction of the water flow inside the water pipe, the water flowing out of the water pipe gradually decreases, resulting in more irrigation water for the plants in the front and insufficient irrigation in the rear, which leads to the saline-alkali upward reaction at the bottom of the saline-alkali land. Soil compaction, causing plant death

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