SU959693A1 - Water chute irrigating slopes - Google Patents

Description

(54) WATER COLLECTION FOR IRRIGATION OF SLOPES

one

The invention relates to agriculture, in particular to irrigated agriculture on sloping lands.

A channel outlet is known, which provides the same flow rate with a significant difference in terrain marks using a pressure compensator, made in the form of an elastic plate, pressed against the water outlet channel and changing its cross-section 1 as the pressure increases.

The disadvantage of this outflow is the high quality requirements for water purification.

A pulsed droplet outlet is known, equipped with a flow control valve in the form of a hydraulically actuated valve, which allows irrigation without fine purification of water 2.

The disadvantage of this outflow is the unequal volume of portions of water supplied from the outlets installed at different geodetic elevations.

The purpose of the invention is to ensure the supply of specified volumes of water regardless of the change in geodetic head.

The goal is achieved by supplying the outlet with a pressure compensator, made in the form of a lever with a counterweight, pivotally mounted on the body of the outlet, and coupled to the hydraulic actuator valve.

FIG. 1 shows a general view of the water release in the open position; in fig. 2- Same, in the closed position.

Claims (2)

The outlet for irrigating slopes consists of body 1 with inlet and outlet apertures 2 and 3, respectively, stem 4 with valve 5 and diaphragm actuator 6 connected through the end of the stem with the load element fixed to Kojinyce 1 and consisting of a lever 7 and counterweight 8. The rod has a cross on the right of 9, made in the form of protrusions, which together with the body form the sector holes 3. On the body of the water outlet there is a saddle 10 for valve 5 and an elastic gripper 11 for orientation of the body along the axis of the pipeline 12. Force acting on the membrane 6 from the drive lever 7 loaded with a counterweight 8 is determined by the formula N, N -, - L P where P is the mass of the counterweight; fi and 2 shoulders; leverage; VS - angle of discharge of the outlet, equal to the angle of inclination of the pipeline. The outlet works as follows. When pressure is applied, water through the inlet 2 enters the water outlet. Watering occurs through the sector holes 3. The force of water acting at this time on the diaphragm actuator 6, less force on the lever 7 from the counterweight 8, interacting with the syringe 4, and is determined by the force NI. In view of the fact that the supplied flow rate is higher than the flow rate through the water outlet, the water will rise further up to the pipeline 12 and the water column H will increase relative to the water outlet, and the force acting on the diaphragm actuator 6 from the inlet 2 will increase. The diaphragm actuator b, together with the stem 4, will move to the right, and valve 5 will go up to the seat 10 and will block the outlets 3, the outlet will close. The weight of the counterweight 8 is defined in such a way that when the water approaches the next outlet, when the water column is "H", the previous outlet will close. The slopes have different local slopes along the length of the pipelines and the force from the counterweight will automatically vary according to the formula given. adjust to existing bias. The greater the angle of inclination, the greater the column of water acting on the outlet, and the greater the force Nj acting on. diaphragm actuator 6 from the side of the cargo element and vice versa. With this, the goal of automatic control of the moment of operation of the first outlet and the outlet depending on the angle of the pipeline is achieved. This is how water flows through the outlets and closes them from bottom to top until the entire pipeline is filled with water. Then the pressure in the pipeline decreases to static. The upper outflow is opened because the force acting on its diaphragm actuator 6 from the inlet 2 side is less than the force from the load member. Water is poured out by emptying the overlying pipe section. The underlying water inlets are closed at this time by the water column in the pipeline. When emptying the pipeline through the first from the top of the outlet, there is a reduction of the water column in the pipeline, and consequently, a decrease in the efforts opposing the opening of the underlying discharge. When the pipeline is emptied to the first from the top of the outlet, the next outlet will be under the pressure of the column, corresponding to the multi-opener. In this way, sequential watering through outlets occurs due to emptying of the pipeline. The installation of the cargo element on the water outlet and its kinematic connection with hydraulic actuator allows automatically, at various slopes and geodesic heights of the irrigated area, to ensure a given uniformity of water outflow through the outlet to the length of the pipeline, which provides the required amount of irrigation. Claims An irrigation outlet for slope irrigation, including a housing with inlet and outlet, and a hydraulic actuator valve, characterized in that, in order to ensure the delivery of predetermined volumes of water regardless of the change in geodetic head, the outlet is equipped with a pressure compensator, made in the form of a lever with counterweight hinged on the body and valve coupled to the hydraulic actuator Sources of information taken into account during the examination 1. UK Patent No. 1509294, cl. A. 1 D, 1978. 2.Prospect VDNH "Micropipe" Irrizor (Italy), Kolomna, 1981.