Device for irrigation
(57) Abstract:Usage: agriculture for subsurface drip irrigation of agricultural crops. The inventive device consists of a sealed tank 1, is installed on the valve - vacuum 2 and release 3, and the discharge tube 4, through which the irrigation tube 5 and the holes in them 6 supplies water to the watering places. In process of absorption of water by the soil level in the pressurized tank 1 is reduced, resulting in above the water level in the tank raises the vacuum and at a certain amount actuates the vacuum valve 2, through which the air cavity of the tank 1 enters a new portion of the air, and again repeats the process of flowing water. 1 Il. The invention relates to agriculture and can be used for irrigation of agricultural crops, orchards and gardens small doses of water.The aim of the invention is the simplification of the device, increase its reliability and to ensure delivery of the required quantity of water in accordance with absorbent soil.The drawing shows a General view of the device.Device for irrigation consists of a sealed tank 1, is it part of the tank 1 is connected drainage tube 4 with irrigation tubes 5, having a water outlet hole 6 (they can be inserted wicks) for the supply of water under the soil, which sprinkle the soil. To the upper part of the tank 1 is connected the inlet water pipe 7, valve 8. To monitor the water level in the tank, it has a level indicator 9.The device operates as follows.To enable the system to work it is necessary to decompose the irrigation tube 5 in the irrigated area and cover with soil water outlet hole 6. Then open the valve 8 and to fill in a sealed tank 1 with water. When filled with water release valve 3 opens, and the air as you fill the reservoir will be grazed. Then briefly press the vacuum valve 2, so that the water filled the irrigation tube 5. Then the device starts to work.Under the action of the first time hydrostatic pressure and the absorbency of the soil properties (capillary forces), and further only absorbing properties of soil water will moisten the soil, and the water level in the tank 1 will start to fall, while in the air cavity inside the tank 1 above the water level will start to increase the vacuum, which will interfere with the expiration of water from a pressurized tank 1.At a certain velicity vacuum valve 2, and the portion of atmospheric air will enter the air cavity sealed tank 1. And then begin the process of flowing water from the tank. The water level when filling and operation of the device is controlled by a level indicator 9.Refueling tank 1 water valve 8.If necessary, you can carry out automatic refueling of the tank 1 with water (for example, installation in a tank float acting on the crane 8). Device for irrigation, including a sealed tank with a vacuum valve in the upper part and with a drainage tube connected to the lower part, characterized in that provided irrigation tube connected to a drainage tube and having a water outlet hole of the water-soil.
FIELD: agriculture, in particular, subsurface moistening with mineralized water.
SUBSTANCE: subsurface irrigation system has steam-like moisture preparing unit, and supply pipelines hydraulically communicated with network of subsurface perforated moisteners having length sufficient for reaching upper boundary of soil layer with set moisture content. Area of perforation openings of moistener is increasing from the top to the bottom to provide moistening of vertical conical volume of soil around moistener widening toward lower end. Subsurface irrigation system allows plant growing conditions to be improved.
EFFECT: reduced consumption of water, decreased material and power consumption for operation of system, increased effectiveness and reduced agricultural product costs.
SUBSTANCE: method involves placing ferromagnetic markers on field, said markers being preliminarily aligned with part of pipelines of general irrigation pipeline complex; placing pipelines with markers on field in alternation with standard irrigation pipelines at pitch equal to width of agricultural unit; positioning pole pieces of magnetically sensitive detectors rotating in left-hand and right-hand directions at sides of longitudinal vertical plane of tractor between front rotating wheels. Middle pole piece is formed as rod and positioned in horizontal plane transverse to and in symmetry with respect to unit path axis between axles of tractor rear wheels and tillage tools first in the course of advancement of tillage unit.
EFFECT: reduced consumption of power for driving tractor along tilled crop spacings.
2 cl, 2 dwg
FIELD: agriculture, in particular, process used for growing of plants in open ground.
SUBSTANCE: method involves placing moisture-permeable material onto surface around plants, said material being provided with openings for plants and with 0.5-1 cm wide and 10-20 cm long vertical ribbons made from moisture-proof material. During night, water vapors condense on vertical ribbons due to cooling and vaporization. Owing to large condensation surface of soil cover, large amounts of water may be condensed which are necessary for soil moistening.
EFFECT: increased efficiency by using natural water source such as water vapors of atmospheric air for soil moistening, reduced water vaporization from soil surface, and increased yield of farm crops.
FIELD: agricultural engineering, in particular, furrow irrigation of root crops.
SUBSTANCE: irrigation pipeline has underground distribution pipeline with branch pipes-water outlets equipped with elastic perforated pipes joined at their entire length with flexible linear spiral member. Connection of perforated pipes with branch pipes-water outlets is made in the form of movable heads provided with spring-loaded two-position valve and projections insertable into spiral slots formed on internal surface of branch pipes-water outlets. Irrigation pipeline of such construction enables free passage of irrigation equipment along furrows during inter-irrigation period.
EFFECT: increased efficiency by providing complete mechanization of works in supplying of water onto group of furrows and controlling of flow rate along pipeline.
FIELD: agriculture, in particular, process which may be used in operation of irrigation systems.
SUBSTANCE: method involves feeding increased amount of water from water source into head part of pipeline to be flushed; providing circulation of water using pump connected through suction branch pipe to end shutter of irrigation pipeline and through discharge branch pipe to its head part; cutting off pump and providing hydraulic shocks within pipeline under flushing process at 3-5 min intervals, with alternating processes of water feeding under pressure and hydraulic shocking lasting during 20-30 min; controlling process effectiveness by state of end water outlets; upon removal of silt therefrom, cutting off irrigation pipeline from head part of pipeline under flushing process and discharging water containing suspended silt particles using pump providing high speed transportation of suspension. Utilizing discharged water for irrigation of lower lands. Method allows deposited slit particles to be removed from water outlets and be further utilized for enrichment of soil with organic substances contained in slit and washed out from water outlets.
EFFECT: enhanced reliability in operation of free-flow irrigation pipelines and avoiding ineffective consumption of water.
SUBSTANCE: zonal sub-irrigation system comprising main channel or water duct, distribution pipeline, and irrigation pipeline with a plug at the end; zonal moisturisers made of perforated tubes, in the root area, water metering equipment, a fertiliser mixing and dispensing device. The distribution pipeline is equipped with graduated water flow taps. The irrigation pipeline is made of flexible tube pieces successively connecting the moisturisers, and is inclined to the planting row end. Moisturisers are made of open polyethylene tubes with a minimum length of 600 mm, with two branches at a level 200 mm lower than the upper end. Flexible tubes for feeding irrigation water from the water receiver are connected to the branches. The water receiver is installed freely above the planting horizontal and connected to the taps. The moisturisers are perforated at their lower ends, the perforation hole diameter being 2-3 mm.
EFFECT: even irrigation water flow rate and good access to irrigation pipelines for repairs.
3 cl, 5 dwg