Double-membrane one-way pipe connector bypass specially used for buried drip irrigation

Abstract

The invention provides a double-membrane one-way pipe connector bypass specially used for buried drip irrigation. The double-membrane one-way pipe connector bypass comprises a water inlet half-body, a connecting half-body, and a water outlet half-body. The junction of the water inlet half-body and the connecting half-body is provided with a first reverse stop valve. The first reverse stop valve isolates the flowing channel of the water inlet half-body from the flowing channel of the connecting half-body. The junction of the connecting half-body and the water outlet half-body is provided with a second reverse stop valve. The second reverse stop valve isolates the flowing channel of the connecting half-body from the flowing channel of the water outlet half-body. In the structure of the double-membrane one-way pipe connector bypass specially used for buried drip irrigation, the structure form of the first reverse stop valve and the second reverse stop valve is used, sediment suction probability and suction volume of a water outlet of the double-membrane one-way pipe connector bypass specially used for buried drip irrigation are reduced, probability of siphon blocking of the double-membrane one-way pipe connector bypass specially used for buried drip irrigation is reduced, and service life of a buried drip irrigation hollow billet is prolonged.

Description

technical field [0001] The invention belongs to the technical field of micro-irrigation, and in particular relates to a special double-membrane one-way pipe connection bypass for buried drip irrigation. Background technique [0002] In today's increasingly scarce water resources, water-saving irrigation, as an important way to save water in agriculture, is an inevitable trend in the development of resource-saving and environment-friendly modern agriculture. Buried drip irrigation is a new drip irrigation technology that has been widely promoted in the United States, Australia, Israel and other countries in recent years, that is, the drip irrigation capillary is laid below the cultivation layer, and the water and fertilizer needed by the crops are directly irrigated to the roots of the crops. This irrigation technology can directly supply water, fertilizer, air, etc. to the root system of crops, so it has a significant effect of saving water, promoting production and conditio...

AI Technical Summary

Problems solved by technology

As the irrigation time prolongs, the soil moisture around the water outlet increases. Due to the influence of the soil moisture diffusion capacity and the exhaust process in the soil, the dripping water has no time to diffuse into the soil, that is, a saturated area is formed around the water outlet. In turn, the positive pressure outside the water outlet increases, which may reduce the discharge flow of the emitter under the action of this positive pressure

When the irrigation is stopped, a saturated mud area has been formed in a large area around the water outlet, and the air has been basically drained. If the water source is suddenly turned off at this time, the air cannot enter the drip irrigation capillary immediately, so that a negative pressure is formed inside the drip irrigation capillary in an instant. The external pressure of the dripper outlet is greater than the internal pressure, so the sediment around the dripper outlet can easily enter the dripper under the pressure difference, which will cause the siphon of the dripper to block

[0004] Siphon blockage is a fatal weakness for buried drip irrigation technology. The failure of most buried drip irrigation systems is due to the blockage of the emitter outlet. The service life of the drip irrigation capillary is shortened, and the uniformity of irrigation is reduced. appeared, which seriously affected the large-scale promotion of this technology

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