Irrigation system with irrigation on a slope

 

The invention relates to irrigation of agricultural crops and can be used in different soil and climatic conditions, mainly for the irrigation system from watering down the slope with the longitudinal separation rollers and bezuslovnymi hollows. In the irrigation system from watering down the slope, including pipelines wastewater (SW) and clean water, mechanical treatment (ST), pond drive (MO), the slope with irrigation blocks, educated longitudinal ridges passable for agricultural machinery (CM) profile, valves and sprinklers with outlets to supply irrigation water for irrigation blocks, butylone hollow passable for (CM) profile, hill ditch, and placed on the backup site automated pumping station discharge pipeline for pumping storm water (MO), the channel-fill (KO), performed with a gradient from 0.02 to 0.08, the slopes are made with a coefficient of laying m = 4-5, and building depth (TO) Hp= 0,5-0,7 m Bottom (KO) made with a width equal to from 0.5 to 1.0 m, and slope in the longitudinal direction of i is 0,00005 to 0.0001. Thresholds culverts installed at the same elevation, and the crest of the dam (eat from 0.05 to 0.15 m3/C. the Invention allows for a 3% increase the use efficiency of irrigated land occupied by the direction of the fill under the hay using equipment hay. Furthermore, there is no need for the construction of retaining structures, which reduces the cost of construction of irrigation network. 4 Il.

The invention relates to the field of irrigation of agricultural crops and can be used in different soil and climatic conditions.

Known irrigation system from watering down the slope for wastewater treatment [1] , including pipelines wastewater and clean water, the construction of a mechanical wastewater treatment pond drive, the slope with irrigation blocks, educated longitudinal ridges passable for agricultural machinery profile, valves and sprinklers with facilities for the supply of irrigation water for irrigation blocks, butylone hollow passable for agricultural machinery profile, arranged Nagorno ditch, and on the backup site is additionally arranged an automated pump station and pressure pipe for pumping storm water pond drive.

Sprinklers of this system to the main system and structures / Gosstroy of the USSR, M., 1986. - S. 48, with a coefficient of laying m equal to from 1 to 2.5.

The canal runs from 3 to 4 days a year, so runs in earthen channel. Channel susceptible to overgrowing vegetation, mowing which to ensure bandwidth is of the order of 0.05-0.15 m3/s requires a special technique that creates difficulties in the operation of irrigation systems. In addition, the area under irrigation channels reduce the use efficiency of irrigated land. In such sprinklers require the construction of retaining structures, which increases the cost of building the system.

The essence of the invention lies in the fact that the slopes of the channel fill is made with a coefficient of laying m is from 4 to 5, the construction depth Hpmade equal to from 0.5 to 0.7 m, the width of the bottom is made equal to from 0.5 to 1.0 m and slope in the longitudinal direction of i is 0,00005 to 0.0001, the thresholds culverts installed at the same elevation, and the crest of the dam is arranged horizontally so as to provide a depth of the fill h is equal to from 0.20 to 0.40 m at a flow rate of water Q from 0.05 to 0.153/s

This allows you to increase 3% utilization of irrigated land due to the involvement of the space of channels/p> In the drawings shown: in Fig.1 - scheme of the irrigation unit of the irrigation system from watering down the slope; Fig.2 is a longitudinal profile of the fill and legend: Q - water flow in the sprinkler in m3/s; B - width of the fill along the bottom in m; h is the depth of the water in the sprinkler in m; Hpconstruction depth of the fill in meters; V is the velocity of the water flow in the sprinkler in m/s; PGV - backed horizon water in the sprinkler in m; Fig.3 - section 1-1 in Fig.1; Fig.4 - section 2-2 of Fig.3.

Scheme irrigation unit of the irrigation system from watering down the slope, shown in Fig.1, includes fill 1, 2 culverts, separation rollers 3, butylone trough 4, the stormwater overflow tank 5 and the collector 6 for discharge of storm water to the backup site, flowing from the surface irrigation block.

The system works as follows.

Before the next watering bands make mowing the grass on the slopes and bottom of the channel fill, using an ordinary hay equipment. After cleaning the canal from vegetation fill fill water up to the design level in accordance with the table of Fig. 2, for example, when the water flow rate Q equal to 0.15 mCa /c, sprinkler fill to the level of 0.36 m Then produce the opening of the floodgates, carrying water directly is with storm water bands is performed using stormwater overflow tank 5 and the collector 6.

Studies on experimental plots at the length of the fill up to 1 km, the slope of i=0,0001, width=1 m and in the absence of a retaining device in the direction of the fill set: productivity irrigators in irrigation flow rate of the fill Q 0.10 m3/with that, when employing one of the band width of 50 m on the slope with a slope of 0.06 was 0.93 ha/h, when irrigation norm 390 m3/ha. Silting and erosion of slopes was observed. The use of the bed of the channel fill for haymaking increased use efficiency of irrigated land by 3%.

Information source 1. Patent RU 2128904 on the invention: "Irrigation system from watering down the slope for wastewater treatment". Inventors: Tutukan C. F., Ivanov, O. A.

Claims

Irrigation system from watering down the slope, including pipelines wastewater and clean water, the construction of a mechanical wastewater treatment pond drive, the slope with irrigation blocks, educated longitudinal ridges passable for agricultural machinery profile, valves and sprinklers with outlets to supply irrigation water for irrigation blocks, butylone hollow passable for the agricultural heartland is tanzio with pressure pipe for pumping storm water pond drive, characterized in that the channel-fill for irrigation system with irrigation on a slope with a gradient from 0.02 to 0.08 slopes made with a coefficient of laying m is from 4 to 5, the construction depth Hpmade equal to from 0.5 to 0.7 m, the bottom is made with a width equal to from 0.5 to 1.0 m, and slope in the longitudinal direction of i is 0,00005 to 0.0001, and the thresholds culverts installed at the same elevation, and the crest of the dam of the channel-fill is arranged on the same horizontal to ensure water depth h in the channel-fill is equal to from 0.20 to 0.40 m, with a water flow rate Q from 0.05 to 0.15 m3/s

 

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SUBSTANCE: apparatus has cylindrical casing with inlet and outlet openings. Cylindrical casing has threaded covers and body. Valve and elastic cuff are movably positioned inside cavity of cylindrical casing. Apparatus is further equipped with additional cuff. Main and additional cuffs are provided with orifices. Valve is made in the form of concavo-concave lens arranged in spherical belt. Valve is manufactured from material having density smaller than density of water, in particular, valve may be made from cork of 0.2-0.3 t/m3 density. Valve is arranged in casing between cuffs and is adapted for alternating contacting through cuffs with projections oppositely arranged inside casing cavity. Projections are made in the form of spherical segments, with radius of spheres of segments being smaller than radius of spheres of concavo-concave valve lens. Difference between radii of projection sphere and that of spheres of concavo-concave valve lens is equal to thickness of elastic cuffs. Channels on apexes of cover and casing projections are extending in radial direction toward inlet and outlet openings.

EFFECT: increased efficiency and enhanced reliability in operation.

4 cl, 4 dwg

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