SU1400553A1 - Pulsed sprinkler - Google Patents

Abstract

This invention relates to agriculture. The purpose of the invention is to increase the uniformity of irrigation by ensuring the operation of the apparatus based on pressure increase signals. A pulse sprinkler includes a water-air tank, a barrel with a nozzle and a shut-off valve with a piston 4 and a jet 6, a water supply pipe 7 and a control valve, the control valve is complete in a three-way spring-loaded valve distributor 8, the inlet of which is connected to the water valve the supply line 7, and the outlets, respectively, with the over piston cavity A of the valve and with the atmosphere. When the apparatus is in operation in the water supply line 7, an increase pressure signal is generated and is produced with a jet ejection. 1 il. with (L 12 o o ate 00

Description

The invention relates to agriculture and can be used for watering agricultural crops.

The purpose of the invention is to increase the uniformity of irrigation by ensuring the operation of the apparatus according to pressure signals.

The drawing shows a shut-off organ of a pulse sprinkler, a section.

The subductor includes a stop valve consisting of the body I, installed at the outflow pipe t5 2 of the impulse sprinkler, in the upper part of which the barrel with the nozzle is installed. Inside the housing 1, a cylindrical chamber 3 is fastened, in which differential 20 Lorshen 4 is placed with a sealing sleeve 5 and a nozzle 6 that covers the output section of the water outlet pipe 2. A piston A of chamber 3 communicates with the water supply pipe 25 ohm 7, the housing of the three-way spring-loaded valve distributor 8, the lower part of which has the shape of the nozzle.

The valve distributor housing AOR 8 is divided by a saddle 9 of the upper valve 10 into two cavities — the lower one and the upper one. V. Upper valve 10 is connected by a current 11 to the bottom valve 12, which is made with a casing. five

The spring 13 is stretched and secured in the upper part of the body 8, and through the rod 11 presses the valve I2 to the seat of the body 8, closing it. Top-40 SRI valve 10 while open.

Pulse sprinkler works as follows.

The water supply network of pipelines through the water supply pipe 7, cavities B and B of the valve distributor, cavity A of chamber 3, the nozzle 6 of the differential piston 4 and the water supply pipe 2 enters the water in the water tank of the 5pulse sprinkler.

The force of the expansion spring 13, the lower valve 12 is pressed against the nozzle of the housing 8 and is in the closed position, and the upper valve 10 is in the open position.

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about

t5 20 25

ZO 5

40

45

50

55

As water accumulates in the air intake tank, the air pressure in it increases.

At a certain degree of filling the water-air tank with water through the water-supplying network of pipelines, a signal is given to a splash in the form of a sharp pressure. As a result, the pressure force acting on the lower valve 12 exceeds the force of the pin 13, and the valves 12 and 10 connected by the rod 11 move downward, the upper valve 10 closes, the lower valve 12 opens. Cavity B is closed, the pressure in it sharply increases due to hydraulic shock, which provides a steady signal of pressure increase in the water supply network. Cavity B communicates with the atmosphere, water flows out of the nozzle through the lower valve I2 with a reverse cone in the form of a fan sprinkler. In this case, the valve 12 is acted upon by the hydrodynamic pressure of the jet and holds it in the Open position. The pressure in cavity B and cavity A communicated with it decreases. This reduces the pressure force acting on the differential piston 4, which is directed downwards, as a result of which the differential piston moves upward under the action of a pressure force acting on it from below. The outflow of irrigation water from the air-supply tank through the barrel with the nozzle begins. The pressure in the water-air tank decreases, respectively, decreases the TC and the pressure in the cavity B communicated with the water-air tank through the cavity A, the jet 6 and the water outlet pipe 2, the force of the extended spring 13 exceeds the force of the hydrodynamic pressure acting on the valve 12, and the latter moves upwards closing the nozzle of the housing 8. In this case, the valve 10 opens, resumes the flow of water from the water supply pipe 7 into the communicated cavities B, B, A, the pressure in them increases, and the force of the hydrostatic increases accordingly effects on the differential piston 4 from above, which leads to the latter moving down. The outlet section of the water outlet pipe 3 closes, the outflow of the jet from the barrel with the nozzle stops 1400553

is. The further work of the apparatus is analogous to the fact that, in order to increase its equilibrium, the dimensionality by ensuring

Claims (1)

apparatus according to the signals of the pressure formula of the invention, the control valve is made c. three-way spring Pulse sprinkler, valve distributor, inlet of a katokvlyuyushchiy water-air tank, the barrel is connected to the water supply nozzle, a stop valve with a piston, a wire, and the outlets - respectively a water-supply pipe and a control- Q with a piston cavity of the stop valve. ghana and with atmosphere.