SU917798A1

SU917798A1 - Pressure regulator

Info

Publication number: SU917798A1
Application number: SU802925930A
Authority: SU
Inventors: Анатолий Иванович Козлов; Николай Иванович Гречихин; Донат Андреевич Верещако; Виктор Петрович Зайцев; Людмила Константиновна Козлова; Борис Ечейвич Югай; Николай Иванович Трусов
Original assignee: Всесоюзное Научно-Производственное Объединение По Механизации Орошения "Радуга"
Priority date: 1980-05-16
Filing date: 1980-05-16
Publication date: 1982-04-07

Description

Изобретение касается полива сельскохозяйственных культур и может быть использовано При орошении самонапорнымй оросительными системами с гидро- . автоматами. $The invention relates to irrigation of crops and can be used for irrigation self-pressure irrigation systems with hydro. automatic machines. $

Известен регулятор давления, включающий корпус с подводящими и отводящими патрубками, запорный орган с мембранным приводом и импульсную трубку с управляющим элементом [’)· 10Known pressure regulator, comprising a housing with inlet and outlet pipes, a locking member with a membrane actuator and a pulse tube with a control element [’) · 10

Такой регулятор не обеспечивает’ пропуск и формирование команд управления в самонапорной оросительной сети.Such a regulator does not provide ’a pass and formation of control commands in a self-pressure irrigation network.

Известен и другой регулятор давле’-’⁵ния для оросительных систем, включающий корпус с подводящим и ОТВОДЯЩИМ патрубками, мембранный запорный ор- . ган, импульсную трубку, подпружинен-_мный мембранный гидродвигатель и мембранный клапан [2]. ·And other known controller davle'- ^'5 Nia for irrigation systems, comprising a housing with inlet and outlet pipes, diaphragm shut-or-. gun, a pulse tube, spring loaded diaphragm ny _m hydraulic motor and valve membrane [2]. ·

Такой регулятор не обеспечивает пропуск и формирование команд управ2 ления на системах с отрицательным уклоном.Such a regulator does not provide skipping and the formation of control commands on systems with a negative bias.

Цель изобретения - обеспечение пропуска и формирования команд управления на системах с отрицательным уклоном.The purpose of the invention is the provision of skipping and the formation of control commands on systems with a negative bias.

Щель достигается тем, что регуля^тор'снабжен дросселем и дополнительным гидродвигателем, при этом подмембранные полости гидродвигателей сообщаются с подводящим патрубком, а надмембранные полости через надмембранную полость запорного органа и мембранный клапан - с отводящим патрубком, причем надмембранная полость одного из гидродвигателей сообщается через дроссель и с подводящим патрубком.The gap is achieved by the fact that the regulator is equipped with a throttle and an additional hydraulic motor, while the submembrane cavities of the hydraulic motors communicate with the inlet pipe, and the supmembrane cavities through the supmembrane cavity of the shut-off element and the membrane valve with the outlet pipe, and the supmembrane cavity of one of the hydraulic motors communicates through the throttle and with a supply pipe.

На чертеже представлена схема предлагаемого регулятора давления.The drawing shows a diagram of the proposed pressure regulator.

Регулятор давления включает корпус с подводящим .2 и отводящим 3 патрубками, мембранный запорный орган 4, мембрану 5 и пружину 6. На корпусе з · 917798 4 установлены дроссель 7 и мембранный клапан 8, включающий винт 9 для настройки пружины 10, мембрану 11с клапаном 12. На корпусе установлены два мембранных гидродвигателя 13 и 5 14 одинаковой конструкции, имеющие регулирующие винты 15 и 16, пружины 17 и 18, мембраны 19 и 20. Надмембранная полость гидродвигателя ГЗ гидравлически сообщается трубкой 21 Ю через дроссель 7 с патрубком 2, а также трубками 22 и 23 - с надмёмбранной полостью гидродвигателя 14 и надмембранной полостью запорного органа, а трубка 24 соединяет патру- 15 бок 2 с подмембранными полостями гидродвигателей 13 и 14. Клапан 8 снабжен импульсной трубкой 25, со- ^Ίобщающей его ’с надмембранной полостью запорного органа 4. 2GThe pressure regulator includes a housing with inlet .2 and 3 outlet pipes, a membrane shutoff element 4, a membrane 5 and a spring 6. A throttle 7 and a membrane valve 8, including a screw 9 for adjusting the spring 10, and a membrane 11 with a valve 12 are installed on the case З · 917798 4 2. Two diaphragm hydraulic motors 13 and 5 14 of the same design are installed on the casing, having control screws 15 and 16, springs 17 and 18, membranes 19 and 20. The supranembrane cavity of the hydraulic motor GZ is hydraulically connected by a tube 21 Yu through a throttle 7 with a pipe 2, as well as tubes 22 and 23 - with a supersubmar constant hydraulic cavity 14 and the cavity nadmembrannoy locking body 24 and the tube 15 connects patru- side 2 with cavities submembrane hydraulic motors 13 and 14. Valve 8 is provided with a pulse tube 25, its co- ^Ί communicate 'with nadmembrannoy cavity closure member 4. 2G

Предлагаемый регулятор работает следующим образом.The proposed regulator operates as follows.

Вода от насосной станции поступает в патрубок 2 корпуса регулятора, открывается запорный орган 4, так 25 как в надмембранной полости регулятора отсутствует давление, потому что трубки 21 и 23 разъединены гидродвигателем 13. При повышении давленияWater from the pumping station enters the nozzle 2 of the regulator body, the shut-off element 4 opens, since 25 there is no pressure in the supmembrane cavity of the regulator, because the tubes 21 and 23 are disconnected by the hydraulic motor 13. With increasing pressure

По достижении установленного давления гидродвигатель 14 занимает исходное положение и прекращает отток воды из надмембранной полости запорного органа 4. Последний закрывается.Upon reaching the set pressure, the hydraulic motor 14 occupies its original position and stops the outflow of water from the supramembrane cavity of the shutoff member 4. The latter is closed.

Таким образом, установкой на самонапорной сети с отрицательным уклоном предлагаемых регуляторов давления друг за другом на геодезических отметках местности, равных статическому напору, преодолеваемому гидродвигателем, обеспечивается пропуск и формирование команд управления в сети с отрицательным уклоном.Thus, the installation of pressure regulators on a self-heading network with a negative slope at the geodetic marks of the terrain equal to the static pressure overcome by the hydraulic motor allows for the passage and generation of control commands in the network with a negative slope.

Claims

...one- . The invention relates to the irrigation of agricultural crops and can be used for irrigation with self-pressure irrigation systems with hydrotometers. A pressure regulator is known, including a housing with inlet and outlet pipes, a stop valve. .membrane actuator and impulse tube with control element 1 j. Such a regulator does not provide skip and formation of control commands in the self-priming irrigation network. Another pressure regulator for irrigation systems is known, including a housing with inlet and outlet nozzles, a diaphragm block, a pulse tube, a spring-loaded diaphragm hydraulic motor, and a diaphragm valve. Such a regulator does not provide skip and formation of control commands on systems with a negative slope. The purpose of the invention is to provide pass and control commands on systems with a negative bias, 1Good is achieved by the fact that the controller is equipped with a throttle and an additional hydraulic motor, wherein the submembrane cavities of the hydraulic motors communicate with the supply nozzle, and the supramembrane cavities through the submembrane cavity of the valve and the membrane. - with an outlet nozzle, with the supramembrane cavity of one of the hydraulic motors communicating through the choke and with the inlet nozzle. The drawing shows the scheme of the proposed pressure regulator. The pressure regulator includes a housing 1 with an inlet 2 and an outlet 3 with nozzles, a diaphragm valve, a diaphragm 5 and a spring 6. On the housing 3. 9, a throttle 7 and a diaphragm valve 8 are installed, including a screw 9 to adjust the spring 10, the diaphragm 11c to the valve 12. On the housing there are two membrane hydraulic motors 13 and 14 of the same design, having control screws 15 and 16, springs 17 and 18, membranes 19 and 20 The transmembrane cavity of the hydraulic motor GZ is hydraulically connected by tube 21 through the throttle 7 s, tube 2, and tubes 22 and 23 to the submembrane cavity of the hydraulic motor 1 and the supermembrane cavity of the locking organ, and tube 24 connects the patrol side 2 to submembrane hydraulic cavity. Teles 13 and 14, the Valve 8 is equipped with a pulse tube 25, which connects it with the supermembrane cavity of the retaining organ 4. The proposed regulator works as follows. Water from the pumping station enters the nozzle 2 of the regulator housing and the valve 4 opens, since there is no pressure in the supermembrane cavity of the regulator because tubes 21 and 23 are separated by a hydraulic motor 13. When the water pressure rises before the regulator to a value set by the spring 18 , the hydraulic motor 13 is actuated, together with the connecting pipe 2 with the supramembrane cavity of the locking member 4 and the hydraulic motor 14, which remains in the initial position. The locking member 4 does not close due to the fact that the outflow of water from its supramembrane cavity is greater than the inflow passing through the throttle 7. When the water supply is stopped, the hydraulic motor 13 under the action of the spring 18 takes the initial position, and the hydraulic motor 14 under the action of pressure from the pipe 3 connects the supermembrane cavity of the regulator with the atmosphere, due to which the shut-off valve will be open to the required pressure regulated by the spring 17 When the set pressure is reached, the hydraulic motor 14 takes the initial position and stops from a stream of water from the supramembrane cavity of the closure member 4. The latter is closed. Thus, installing one-after-one pressure regulators on a geodesic level, equal to the static head overcome by a hydraulic engine, is installed on a self-pressure network with a negative slope, it ensures skip and formation of control commands in a network with a negative slope. Claims of the pressure regulator, including an enclosure with inlet and outlet nozzles, a diaphragm block, a pulse tube, a spring-loaded diaphragm hydraulic motor and a diaphragm valve, characterized in that in order to ensure the passage and the formation of control commands on systems with a negative slope, The torus is equipped with a throttle and an additional hydraulic motor; in this case, the submembrane cavities of the hydraulic motors communicate with the inlet nozzle, and the above-membrane cavities through the supramembrane cavity are barred and a diaphragm valve body - with the removal nozzle, the cavity nadmembranna one of hydraulic motors is communicated via a throttle and a conductive supply pipe. Sources, information taken into account in the examination 1. M Gapkin, 3. Automation and telemechanization of production processes, Kolos, 1977, p. 238. 2, USSR Author's Certificate No. 725621, Cl, A 01 G 25/02, 1978 (prototype). 1v 13 20 L