SU1029910A1 - Method of irrigating rice and system for performing same - Google Patents

Abstract

1. A method of irrigating rice, including flooding cards with water supply from the irrigator, drainage of excess WATER by card waste channels and regulation of the water supply to the beginning of the card irrigator, characterized in that, in order to save water and improve the ameliorative state, T-Institute of Irrigation System, water supply the sprinkler is produced discretely until the specified maximum water level in the checks is reached and followed by the termination of the feed until the specified minimum level is reached. 2. A system for carrying out the method according to claim 1, comprising regulators of water levels in checks and a regulator of water levels in an irrigator, made in the form of a flexible shell located in a tubular water outlet at the beginning of the irrigator and communicated with a smaller beacon and outlet A nozzle with a larger diameter with a float valve at the end is with a downstream, characterized in that the float in the rice paddle is connected to the valve closing organ with a flexible insert, the valve closing organ and the saddle made from one another. vayuschihs magnetic materials. g-g CO with

Description

5 (7,8,9,15)

, IO, lf, 12,13,1l) The invention relates to agriculture and can be used to automate water distribution systems in rice irrigation systems. There is a known method of irrigating rice fields, which means that the regulation is carried out respectively on irrigation canals or, on discharge channels, in such a way that water supply to the check and removal of excess waste water is directly dependent on its level in the old pore channels. It is differentiated for each check with regard to its filling level 1. A known system for implementing the method, including a higher-order irrigation canal, a regulating device for irrigation irrigation Equipment, automatic tracking devices for supplying and discharging water from the check, and regulating the device of the end discharge channel 1. As a water level regulator in the sprinkler, a known device for regulating water levels in pools is used, containing a gate made in the form of a flexible shell, the cavity of which communicated by nozzles with upper and lower pools, and a valve articulated with a float is installed in the nozzle, which communicates with the adjustable buoy. The disadvantage of this method of rice irrigation is that the cart irrigator is always made constant water level and as a result, useless filtration from the irrigator to the waste network occurs. Along with the useless loss of water, the land reclamation state is deteriorating. In addition, the level regulator cannot perform a clock supply of water to the cart irrigator, which is necessary for the implementation of the proposed method. There is also known a method of irrigating rice, including flooding of cards by supplying water from the irrigator, discharging water overlays with card waste channels and adjusting water supplies to the beginning of card irrigator 2. This method provides separate discharge of water from the cards and discharging excess water in the discharge channel. A device for carrying out the method is known, consisting of a water level regulator in rivers and a water level regulator in an irrigator, made in the form of a flexible shell located in a tubular water outlet at the beginning of the irrigator and communicated with a smaller diameter inlet nozzle and an outlet diameter of a larger diameter with end float valve - downstream 2. The disadvantage of the method and device is that they do not eliminate excessive filtration of water from the cart sprinklers and do not ensure the safety of the sprinkler channels, since water is constantly in them. The purpose of the invention is to save water and improve the reclamation state of the irrigation system. The goal is achieved by the fact that water is supplied to the irrigator discretely until the specified maximum water level in the checks is reached, followed by the termination of the water supply until the specified minimum level is reached. In a system for implementing a method comprising regulators of water levels in checks and a regulator of water level in an irrigator, made in the form of a flexible shell located in a tubular water outlet at the beginning of the irrigator and communicated by an inlet nozzle of a smaller diameter with an upper tail and an outlet Nozzle of a larger diameter with a float the valve at the end is with the lower reach, the valve is controlled by a float in the rice check connected to the valve's stop valve with a flexible insert, the valve stop valve and the seat being made of a reciprocating xc magnetic Materials. The method is implemented as follows. Water is fed into the check from the sprinkler through level controls, ensuring the maintenance of a given level difference relative to the channel. By this, the check maintains the required depth of filling and at the same time a constant level difference, individual for each check and dependent on its level. The irrigator level is maintained at the rate of providing the required filling depth for the check. At the same time, the cart sprinkler is without water for most of the time, since water is supplied to the sprinkler periodically, and it starts when the predetermined minimum water level r is reached in a controlled check when the pre-determined maximum water level is reached in a controlled check. FIG. 1 shows a system for implementing the method, a plan; in fig. 2 is a device for discrete water supply. The system contains rice checks 1, posted to the kartovoy sprinkler 2, fed from the district distributor 3. The float valve 4, installed in the rice check, is connected to the regulator 5 of the clock water supply, installed in the head of the card irrigator 2. Regulators of water levels in the checks b installed on the outlets of the card sprinkler 2 in the rice paddies 1. The device 5 for discrete water supply contains an inlet 7, connected to a shutter, made in the form of a flexible shell 8, to which the outlet 9 is connected, connected with a float valve, which consists of a closure member 10, made of a permanent magnet, connected by means of a flexible insert 11 and a rigid rod 12 with a float 14j, the outlet 9 has an outlet 13 having a saddle 15 of magnetic material. The regulator 5 clock flow of water is installed in a tubular water passage 16. The system works as follows. First, the checks are manually flooded to a predetermined level, due to which the closure body 10 is magnetized to the saddle 15 of the hole 13, thereby closing the outflow of water from the flexible shell 8, which, filling, stops the water supply to the irrigator 2. Then, when the water level in the controlled The float 14 of the 4 level sensors installed in the check 1 lowers the check, deformation of the flexible insert 11 designed to increase the control range occurs, and the float 14 presses on the pin 12 connected to the locking member 10. When the minimum the water level in the check, the pressure of the float 14 on the rod 12 is more magnetic forces of the seat 15, closing the inlet 13, and as a result, the valve 10 opens from the inlet 13 through the outlet 9 of the flexible shell 8 water begins to flow out nozzle 7 is smaller than the diameter of the outlet nozzle 9. The flexible sheath 8 collapses, and through the tubular outlet 16, water from the district distributor 3 enters the map irrigator 2 and through level regulators 6 enters the checks 1. As the water level increases in the check The float 14 floats up and, when the maximum permissible level is reached, the water in the check closes the outlet 13 with a valve. Water through Inlet 7 fills the flexible casing 8, the tubular water outlet 16 closes and the water supply to the cart irrigator 2 stops until the water level in check 1 will not reach the minimum target value. In the following, the adjustment operation is repeated as described above. During the period between the openings of the outlet 16, the kart irrigator remains supported; this eliminates filtration from it and reduces water losses. The irrigator is emptied by the fact that all the water from it flows into the rice checks through the level 6 regulators. The use of the method allows to save irrigation water, reduce the flow of water into the discharge network, which will improve the reclamation state of irrigated lands, increase the yield of rice along the irrigators. The total economic effect from the introduction of the method will be 100 rubles / ha.

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Claims (2)

1. A method of rice irrigation, including flooding the cards with water from the irrigation system, removing excess water with card waste channels and regulating the water supply to the beginning of the card irrigation system, characterized in that, in order to save water and improve the reclamation state of the irrigation system, water is supplied to the irrigation system produce discretely until the specified maximum water level in the receipts is reached and with the subsequent cessation of supply until the specified minimum level is reached. 2. The system for implementing the method according to π. 1 containing regulators of water levels in receipts and a regulator of water level in the irrigator, made in the form of a flexible shell located in a tubular outlet at the beginning of the irrigator and communicated by an inlet pipe of a smaller diameter with an upper pool and an outlet pipe of a larger diameter with a float valve at the end - with lower downstream, characterized in that the float in the rice check is connected to the valve closure by a flexible insert, and the valve closure and the seat are made of mutually attracting magnetic materials.