SU1629388A1 - Drying-moistening system - Google Patents

Abstract

The invention relates to hydraulic amelioration and can be used to create drainage and humidification systems. The purpose of the invention is to reduce the material consumption of the system. The system includes a source of 1 humidification, a drainage and drainage canal 2 and a canal-water intake 3, gateways-regulators 4, a water outlet 5 from the reservoir to the canal. The collector-drainage network includes drainage dampers 6. drainage wells 7. drains 8, aeration collectors 9 and aeration wells 10. Collectors 6 are laid parallel to channel 2 and communicated with wells 7, and at the source and the mouth of each of the collectors installed locking devices. Each well 7 is connected by a pipe with channel 2, and the tip of this pipe is put into the headwater of the regulator sluice. Each drain 8 is connected to the drainage and moisture 6 and aeration 9 collectors. The collector 9 is located above the maximum during the period of regulation of the water regime of the groundwater level and below the topsoil. 4 sludge. W ё

Description

Och Yu

Yu

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The invention relates to hydraulic amelioration and can be used to create drainage and humidification systems.

The purpose of the invention is to reduce the material consumption of the system.

1 shows a schematic plan of the system; figure 2 - section aa in figure 1; on fig.Z - section BB in figure 1; figure 4 is a section bb In figure 1,

The system contains a source of 1 humidification (reservoir), a dehumidifying and dampening channel 2 and a canal-water intake 3, gateways-regulators 4, outflow 5 from the reservoir to the canal. The collector-drainage network includes drainage and dampening collectors 6, drainage wells 7, drains 8, aeration collectors 9 and aeration wells 10. Collectors 6 are laid parallel to channel 2 and communicated with wells 7, and at the source and at the mouth of each of the collectors are installed shut-off devices 11. Each well 7 is connected by a pipe 12 with channel 2, and the tip of this pipe is put into the upstream of the lock-regulator. The diameter H of the collectors 6 is 1.5-2 to 2 times larger than the calculation for passing the flow rate determined by the wetting and drying modules and the area of the site that is suspended from the collector. Each drain 8 is connected to the drainage and moisture 6 and aeration 9 collectors, with the collector 9 located above the maximum groundwater level (GWL) during water regulation and below the arable layer. Gate controllers 4 are equipped with automatic shutters of constant water level in the downstream or constant level difference between the reach. The outlet outlet is equipped with the downstream regulator 5. The automatic shutters adjust so that the difference in water levels in the two adjacent pools is equal to the fall of the surface of the ground, below the downstream of these pools.

The system works as follows.

In the spring, all the gates of the gateways-regulators 4 and locking devices 11 collectors 6 are open. After the GWL of the sowing period has been reached, the automatic shutters of the gateways-regulators 4 and the outlet 5 are set to stabilize the required levels, the marks of which are taken from the actual position of the GWL, the GWG control algorithm, and

also the required level difference in adjacent pools, channel 2 is filled to level 13 and water enters wells 7, collectors 6 and drains 8. At the same time, the difference in marks

water levels in wells 7 are always equal to the difference in ground level marks on this site, since each collector is associated with two adjacent wells 7, there is a constant flow of water from the overlying well to the underlying, and due to the increased diameter of the collector 6, the piezometric slope line 14 in the reservoir is close to the average slope of the earth’s surface and slightly depends on

drainage drainage values. When filling the drains with water, the air there is displaced into the aeration collectors 9 and exits into the atmosphere, thus preventing air plugs from forming in the drains. Due to the fact that aeration collectors are above the groundwater level, there is no flow of water from one drain to another and the redistribution of water flow, which allows to obtain a uniform distribution of pressure in drains over the area of the array. If it is necessary to change the pressure in the collector-drainage network, the levels of stabilized levels change, and the value of this difference is constant

for each automatic shutter. If it is necessary to exclude from the work of a particular collector-drainage system, the sources of the mouth of the corresponding collector 6 are blocked by locking devices 11.

Claims (1)

Invention Formula Drainage and wetting system, including water source, water intake, canal, gateways-regulators, collector-drainage systems, each of which includes two collectors connecting, respectively, the sources and the drainers, the first ones being laid along the channel and in the source communicated through wells with shut-off devices with an overlying canal pool, characterized in that, in order to reduce material consumption, the mouth of the collectors connecting the sources 0 drains are connected through wells with shut-off devices to the canal pool adjacent to them, and the collectors connecting the drainage wells are equipped with aeration wells and are made with a laying depth not exceeding the minimum depth of the groundwater during water regulation. 13 TGG7 11 P 7 6 73 FIG. 2