CN2438324Y

CN2438324Y - Double-wall pipe drip irrigation hose

Info

Publication number: CN2438324Y
Application number: CN 00247714
Authority: CN
Inventors: 吕谋超; 彭贵芳; 杨跃辉
Original assignee: Farmland Irrigation Research Institute of CAAS
Current assignee: Farmland Irrigation Research Institute of CAAS
Priority date: 2000-08-19
Filing date: 2000-08-19
Publication date: 2001-07-11
Anticipated expiration: 2010-08-19

Abstract

The utility model discloses a double-wall pipe micro irrigation band, which comprises a micro irrigation band made of a film material. The utility model is characterized in that a water delivery pipe and an upper-stag branch pipe are mutually connected, a common wall of the water delivery pipe and a weeping pipe is provided with a water outflow inner bore, water in the water outflow inner bore flows into the weeping pipe through the water delivery pipe, a pipe wall of the weeping pipe is provided with a weeping outer bore, water flow of the weeping outer bore is evenly distributed in a mode of streamlet, and the water outflow inner bore is smaller than the weeping outer bore. The double-wall pipe micro irrigation band has the advantages of strong applicability, little blockage, full turbulence, three stage energy dissipation and low cost. The utility model is suitable for being used for fixed irrigation systems such as close growing crops sowed in line, a big shed hothouse, etc.

Description

Double-wall pipe slight irrigation band

The utility model relates to a kind of double-wall pipe slight irrigation band, particularly is applicable to the drip irrigation of row crop.

China Patent No. is: a kind of anti-clogging irrigate band of 96220825, make by thin-film material, its two longitudinal edges stacked and sealing or gluing subaisle, horizontal at regular intervals sealing of subaisle or the gluing sections that forms, husky mouthful and delivery port that each place, stage two ends reserves, the labyrinth-like ridge design is arranged on the subaisle wall, the overlapping film in place, concavo-convex mouth of a river sealing or gluing is not fully arranged on the wall of one deck at least of water inlet, on the membrane wall corresponding to the delivery port place projection is arranged.Its shortcoming is as long as any part of runner is stopped up, will directly to influence the water yield of water dropper.

The purpose of this utility model is to propose a kind of difficult obstruction, full turbulent flow, still can keep the double-wall pipe slight irrigation band of distribution if any stopping up the water outlet uniformity.

Task of the present utility model is to realize like this, it includes the irrigate band of being made by thin-film material, it is characterized in that: water-supply-pipe and higher level's arm join, the water outlet endoporus is arranged on the common wall of water-supply-pipe and weep pipe, water in the water outlet endoporus flows into weep pipe through water-supply-pipe, the outer hole of dripping is arranged on the tube wall of weep pipe, and the current in the outer hole of dripping evenly distribute with thread, and the water outlet endoporus is less than the outer hole of dripping.

The utlity model has following effect: double-wall pipe slight irrigation band is that to be fit to a kind of applicability that China's actual conditions work out strong, be difficult for stopping up, full turbulent flow, (I and II is independent in three grades of energy dissipatings, three grades communicate) the slight irrigation band, suitable row is broadcast fixed irrigation system such as dense planting crop, plastic greenhouse and is used, and cost is low, and effect is remarkable.

Fig. 1 is a structural representation of the present utility model.

Drawing explanation: the 1. water-supply-pipe 2. water outlet endoporus 3. weep pipes 4. outer hole of dripping

Describe embodiment of the present utility model in detail in conjunction with above accompanying drawing, double-wall pipe slight irrigation band is to be bonded water-supply-pipe 1 by thin-film material to join with higher level's arm, on the common wall of water-supply-pipe 1 and weep pipe 3 water outlet endoporus 2 is arranged, the water that the water outlet endoporus is 2 li flows into weep pipe 3 through water-supply-pipe 1, the outer hole 4 of dripping is arranged on the tube wall of weep pipe 3, the distribution in outer hole 4 of dripping evenly distributes with thread, water outlet endoporus 2 is less than the outer hole 4 of dripping, water outlet endoporus 2 is when dripping the 4 thread water outlets of outer hole, interior hole count is 1: 2～10 with the ratio of outer hole count, as the outer hole 4 of dripping stops up 25%, the water outlet uniformity still can maintain about 95%, as stop up 50%, and the water outlet uniformity can reach about 88%, and promptly this product has certain pressure regulation and flow-compensated effect.

Claims

1, double-wall pipe slight irrigation band, it includes the irrigate band of being made by thin-film material, it is characterized in that: water-supply-pipe and higher level's arm join, the water outlet endoporus is arranged on the common wall of water-supply-pipe and weep pipe, water in the water outlet endoporus is through water-supply-pipe person who lives in exile weep pipe, the outer hole of dripping is arranged on the tube wall of weep pipe, and the current in the outer hole of dripping evenly distribute with thread, and the water outlet endoporus is less than the outer hole of dripping.