SU1584828A1 - Deflector-type sprinkler - Google Patents

Abstract

The invention relates to agriculture and can be used in irrigation systems for irrigation using the method of sprinkling orchards, vineyards and other agricultural crops, as well as for moistening production and sports grounds. The purpose of the invention is to improve the performance of the device by ensuring uniform irrigation in the range of the device and along the length of the pipeline. Reflector sprinkler for irrigation systems includes a housing 1 with a nozzle 2, a latch 3, a deflector 4 with channels 6 and a propeller 5. When water is supplied to the system, the deflector 4 and the propeller 5 rotate due to the reaction of the water jet to the deflector channels 6 4. 5 during rotation depending on the pressure of the water and, consequently, the speed of rotation presses the deflector 4 to the nozzle 2, providing self-regulation of the installation of the deflector 4 relative to the nozzle 2. 1 Cp. f-ly, 2 ill.

Description

The invention relates to agriculture and can be used in irrigation systems for irrigation using the method of sprinkling orchards, vineyards, etc., as well as wetting production and sports grounds.

The purpose of the invention is to improve the uniformity of irrigation in the range of the device.

I

Figure 1 shows schematically

deflector sprinkler; figure 2 - deflector, bottom view.

The device comprises a housing 1 with a nozzle 2, a latch 3, a deflector 4 and a propeller 5. On the deflector 4, curved channels 6 are made in groups 6. The number of groups of channels 6 can be

different, but in each group there is a full set of channels 6 of different depths and with different angles of solution. It is also possible alternation of groups of channels 6 with different sets, but at the same time they are placed on the deflector symmetrically in order to avoid the deflection of the deflector 4 in the clamp 3 under the action of water pressure. The latch 3 allows the deflector 4 free rotation and axial movement, and in the extreme upper position the gap between the deflector 4 and the nozzle 2 is not less than the diameter of the nozzle 2. The depth of the channels 6 to the tip of the deflector 4 decreases to zero, so that the tip of the deflector 4 has the properties of a valve and able to tightly shut off the nozzle 2.

The propeller 5 is rigidly connected to the deflector 4, and the inclination of its blades from the bottom upwards coincides with the direction of the bend of the channels 6 on the surface of the deflector 4.

The device works as follows.

In the off position, the deflector 4 under its own weight

the nozzle 2 is lowered and locked with its central part, made in the form of a valve. This prevents the device from ingress of dust and insects, as well as from the evaporation of water in irrigation systems without self-draining. When water is supplied to the system, the deflector 2 rises with the propeller 5 to the extreme upper position by means of water pressure and a stream of water is formed from the nozzle 2, which splits into separate streams going through channels 6. Thus, groups of channels 6 are located at the top of the deflector 4 symmetrically, the latter begins to rotate in a clamp without distortions and jamming

3 under the influence of the jet power of the jets in the curved channels 6. Next, the water streams from each group of channel 6 are divided by air into splashes, which are uniformly distributed over the area of the soil. The direction of flight of the spray during rotation of the deflector 4 is constantly changing, which provides an arbitrarily high degree of uniformity of irrigation. Simultaneously with the deflector 4, the propeller 5 begins to rotate. Under the action of the thrust force developed by it, the propeller 5 and the deflector

4 begin to lower, with the valve partially blocking the nozzle 2 until the pulling force is comparable with the force of the water jet. In irrigation systems, the pressure of water along the length of the pipeline is significantly reduced due to friction and selection of pressure

in sprinkling devices. In cases of soil inclination along the length of the pipeline, the pressure may increase. The pressure in the network may also fluctuate for technical reasons. The higher the pressure in the nozzle 2, the greater the reactive force of the water jets, the greater the rotational speed of the propeller 5, the greater the force behind the pyrani nozzle 2 by the valve of the deflector 4. Thus, the device self-regulates.

If the nozzle 2 partially blocked by the valve of the deflector 4 is blocked (fully or partially) in the working position, then the rotation of the deflector 4 and the propeller 5 stops, the water pressure raises the defletter 4 to the extreme upper position and throws the debris into the gap between the nozzle 2 and deflector 4, since the gap is larger than the diameter of the nozzle 2. After self-flushing, the device enters the operating mode.

Claims (2)

1. Reflector sprinkler device consisting of a body with a nozzle and a deflector installed vertically with a gap between it and the nozzle rotatably in the housing clamp coaxially with the nozzle, while the surface of the deflector is made with radially diverging and curved variable length and variable section channels This is so that, in order to improve the uniformity of irrigation in the range of the device, the deflector is made in the form of a cone-shaped streamlined body mounted in a fixture movably in axially direction and is equipped with a propeller, the slope of the blades of which from bottom to top coincides with the direction of bending of the channels, while the channels are made on the conical surface of the deflector and are combined into groups symmetrically located along the perimeter of the deflector and containing channels with different angles of solution in each group. 2. The device according to claim 1, characterized in that the gap between the deflector and the nozzle in the extreme upper position of the latter is not less than the diameter of the nozzle. 2.