SU794111A1 - Draining and moistening system - Google Patents

Description

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The invention relates to agriculture, in particular, to devices for water and water land reclamation, and can be used in the drainage and watering of agricultural land.

Known drainage and humidification sietema, I turn on, and pumping station with a pressure reservoir, closed distributors, drainage collectors with closed pipe joints and two Rus drains 1.

In the well-known system, the lower rus is connected to the collector by horizontal taps and consists of deep and sparse drainage drains, and the upper rus consists of frequent shallow drain humidifiers connected to the collector by vertical taps made in the form of siphon tubes, the lower ends of which are downpipes. , and the mouth of the collectors are cranked upwards.

A disadvantage of the known system is insufficient provision of water-air regime of the soil, increased consumption of water, fertilizers and trace elements.

The purpose of the invention is to improve the water-air regime of the soil to increase the yield of agricultural crops while at the same time saving water, fertilizer and trace elements.

The goal is achieved by the fact that the system is equipped with a storage tank connected to a pumping station and an evacuation device which is designed as a spool mechanism with a drive and a time relay connected to a closed collector to a pressure and storage tank.

The drawing shows a General view of the drainage and moisture system.

The system consists of a storage tank 1, in which the suction pipe 2 of the pumping station 3, which is connected to the pressure tank 4, is immersed. The tank 4 by pipe 5 is connected to the inlet 6 of the slide valve 7. The slide valve 7 is made in the form of a cylinder 8 reciprocating movement of the spool 9. The stem 10 of the spool 9 is equipped with a drive 11 controlled by a known program type time relay 12. The outlet 13 is connected to the drain pipe 14 of the accumulation tank 1, and the second outlet 15 is connected to a closed collector 16 to which the drain-humidifier system 17 is connected. The pressure tank 4 is equipped with a level sensor 18.

Drainage system is as follows.

When the pumping station 3 is turned on, the aa from the storage tank 1 through the suction pipe 2 is fed to the pressure tank 4. After the tank 4 is filled to the predetermined level set by sensor 18, the pump station 3 is turned off.

The level sensor 18 thus sets the required pressure of the water column, depending on the bulk weight of the soil, the depth of laying of the damper humidifiers 17. By means of the drive (electric motor) 11 and the stem 10, the slide valve 9 is moved to its lowest position so that the inlet 6 and the outlet 15 are located on one side of the spool 9. As a result, water from the pressure tank 4 flows through the pipeline 5 through the cavity of the cylinder 8 into the collector 16 and then into the drain-humidifiers 17. Exit from the drainage humidifiers 17, moisture through the capillary system chvy migrate to its surface, it displaces the carbon dioxide to the leaves of the crop plants, which intensifies the photosynthesis. In the regime of moisture injection, the upper limit of the capillary border (shown by the dotted line in the drawing) rises. After a predetermined time T, about the limit of the soil filtration coefficient, the pressure of the liquid column, the free soil porosity and the maximum capillary pressure of the moisture in the soil, time relay 12 is triggered, including the drive 11. The spool 9 is raised to its uppermost position, creating A vacuum under the spool 9 in the lower part of the cylinder 8-, with an atom, the outlet nozzles 13 and 15 are on one side of the spool 9, and the inlet & overlaps. The moisture is sucked from the soil through the drain 17, the collector 16, the drain-no-pipe 14 into the storage tank 1. As a result

the upper limit of the capillary border is lowered and air is drawn into the soil. The moisture suction boom is established based on the magnitude of the generated discharge, the filtration coefficient of the soil, its free porosity, and the maximum capillary pressure of moisture in the soil. After suction lead the injection of moisture and so on. The invention provides significant savings in water, fertilizers and trace elements that are not transported outside the system, but are evacuated in a storage tank. At the same time, the water-air regime of the soil is significantly improved due to fluctuations of the upper capillary border, which increases the yield of agricultural crops. Periodic injection and suction of moisture increase the rate of its filtration, which prevents overmoistening of the soil during rainy periods and speeds up the metabolism in the system and its growth.

Claims (1)

Invention Formula Drainage and moisture system including a pumping station with a pressure tank, a closed collector, drainage humidifiers and an evacuation device, characterized in that, in order to improve the water-air regime of the soil to increase the yield of agricultural crops while saving water, fertilizers and microelements, the system is equipped with a storage tank connected to a pumping station and a vacuum device, which is made in the form of a spool mechanism with a drive and a time relay connected to a closed collector, to ornomu and storage tank. Sources of n-information, taken into account in the examination 1. USSR author's certificate number 178228, E 02B 11/00, 1964 (prototype).