SU641924A1 - Dropwise watering arrangement - Google Patents

Description

I

The invention is agricultural to agriculture, in particular to the irrigation of agricultural crops, and can be used for moistening plants by the drip method.

A drip oroshek device is known, consisting of a command pulse generator, a compressor, a pipeline with water outlets, and pneumo-accumulators l.

A disadvantage of this device is the complexity of the congrucine, in particular the presence of a compressor.

It is also known a drip irrigation device, which includes a command pulse generator, a pipeline with water outlets, and a pneumohydroaccumulus $ & 2 tori.

A disadvantage of the known device is the uneven distribution of water flow in the water outlet holes along the pipeline bus, due to a decrease in the force of the pressure drop pulse along the length of the pipeline, which controls the discharge of water for irrigation.

The purpose of the invention is to improve the uniformity of the distribution of water flow in the outlet holes along the length of the pipeline.

For this, the pipeline between the water outlets is divided into sections by valves made in the form of an elastic open elongated shell with a slot in the end, and the middle part is located opposite the water outlets with each other, and each section is connected to a pneumohydro battery.

The drawing shows a drip irrigation device, a slit.

Claims (2)

The device has a pipeline in the form of plastic (for example, polyethylene tubular bodies 1 interconnected by hoses and consisting of inlet 2 and outlet 3 tubes articulated by means of a thread. At the free ends of both tubes of the case there are tips 4 for hermetically connecting the hoses with c. Outlet The tube 3 has in its middle part several outlet openings 5 serving for the outflow of irrigation water. At the butt joint, the inlet 2 and outlet 3 of the tubes inside the housing have a valve 6, made in the form of elastic an elongated open shell with a slot 7 in the end, dividing the pipeline into sections. In the middle cylindrical part, valve 6 with its outer surface is adjacent to the edges of the outlets 5. P1dro pneumoaccum ator 8 is made of polyethylene in the form of a gonosteine balloon with an inlet neck 9 which is screwed into the rebar of the housing 1. The device operates when the tube is fed into the pipe-bed under the pressure and cyclically pressure: a long time (about 1-S miv) a pressure of 1–4 at Lc ionizheii pressure of about 2-S s) droplet momentum. The water passes through 00 inlet tube 2 and into valve 6, stretches the valve and, expanding slot 7, passes along the pipeline and into the hydropneumatic accumulator 8, pressing the middle part of the valve closer to the edges of the outlets 5, seals the inner cavity of the pipeline and roineum accumulator 8. The passage further along the pipeline, water likewise interacts with the second third, etc. drip irrigation devices. At the same time, water freely fills the hydropneumoaccessor% 1 liter 8, compressing the water in them. After filling in all the g / fopnevmokkut of the tutors 8, the water flow ceases, the flow along the entire length of the pipeline becomes the same, and the volume of water accumulated in the hydropneumatic accumulators 8 is identical to that. The slots thereby close. In such a state, the hydro-pneumatic accumulator 8 of each section of the pipeline and it turns out to be separated: 1 from the hydropneumatic accumulators of the other sewers are closed by a valve 7. When creating a first-time impression, the falloff decreases in the internal subnet of the 1shapan envelope. 6. & TOM overpressure beyond the Knoffan tightly compresses the slots 7 and flattens the valve casing of the first section. tearing it away from the edges of the outlets (5, Through the opened outlets about the gersty, the water accumulated in the hydro-pneumatic accumulator, the pressure of the compressed Voaduha is displaced in the rear. Due to this water discharge, the pressure in the hydro pneumatic accumulator 8 and the pipeline section before valve 6 drops the next section, the next device is triggered, etc. Thanks to the sectional drainage of water from the sections of the pipeline 1, the power of the pressure reduction element is not decaying (it propagates along the whole pipeline but in the form of a hydrodynamic wave. Isolation The sections of the irrigation pipeline between the two valves 6 with closed slits ensure the outflow of water from only one pump accumulator, i.e., ensure equal doses of water given to irrigate each section. This equals the distribution of water through the command signal in the irrigation network, it is again hung up with a generator of command pulses in the head of the pipeline, sections of water and water, the whole process of operation is cyclically controlled. DETAILED DESCRIPTION OF THE INVENTION A device for drip irrigation, including a command impulse generator, a pipeline with water outlets, and a pneumohydroaccumulator, which is indicated by the fact that, with nentao increasing the equal distribution of water flow to the outlet pipe along the length of the pipeline, the water outlet is divided into sections by valves, which are formed in an elastic unclosed elongated o6ow section with a slot in the end, and the middle part is located opposite the outer outlets with the possibility of action with them, wherein each section is connected to the n evmogydro accumulator. Sources of information received during examination: 1.US Patent Nii 376217О. 101. 61-13, 1972. 2. USSR author's certificate number 554844, cl. A O1 Q 25 / O2, 1976.