RU2646921C1 - Water outlet from the channel in the elements of the hydrographic network - Google Patents

Abstract

FIELD: construction.

SUBSTANCE: invention relates to irrigation and environment-oriented construction, it can be used to regulate the watering of natural watercourses (draws and headwaters) and emptying the canals with water discharge into the natural elements of the top (upper) hydrographic network (hollows, low grounds, ravines, draws), performing the functions of a water outlet. Water outlet from channel 1 into the hydrographic network includes water-transporting pipeline 4, laid down under the canal dam, water intake headwell 3, shut-off device 5, outlet end in the form of hydrant 6, a sub-diaphragm water intake 8, perforated diaphragm 7 of circular or semicircular shape. In this case, the regulation of the discharge of water discharged from channel 1 into the watering of water bodies is carried out by means of a gate valve and by varying the diameter of the water outlet pipe, and the erosion-safe drainage of water from the device is provided by dispersing the water flow into separate jets by means of a downward outflow of a part of the water flowing out of the pipe through the holes of perforated diaphragm 7.

EFFECT: application of the invention will allow not only to expand the functionality of large channels of irrigation and drainage systems, but also to provide watering of low-water streams of the hydrographic network, excluding a number of negative phenomena, the formation of which is possible under a surface transfer of water resources.

1 cl, 4 dwg

Description

The invention relates to irrigation and drainage and environmental construction and can be used to regulate the flooding of natural watercourses (beams and small rivers) and the emptying of channels with the discharge of water into the natural elements of the vertex (upper) hydrographic network (hollows, hollows, ravines, gullies), performing the functions of a water outlet -water release.

Known water outlet from the channel (RU 2576982, 03/10/2016), including the inlet, transit and outlet channels, the regulating shutter, a water intake gallery having a water inlet in the upper part, blocked by a grate.

The disadvantage of this outlet is the impossibility of using it to transfer part of the water resources from the channels of irrigation and drainage systems to the hydrographic network, the need for an energy absorber or concrete pavement to prevent the formation of various soil deformations during the passage of the water flow.

Known bottom outlet (SU 1002450, 03/07/1983), including a water intake tray made in the bottom of the channel, a grate and a discharge conduit in the form of a pipeline.

The disadvantage of the technical solution is that when transferring part of the water resources by means of the completed channel, a water well or protective concrete cladding is necessary to prevent erosion and deformation.

The closest technical solution to the claimed one is a tubular outlet (SU 102376, 06/10/1955), designed to pass part of the water from the channel and consisting of a pipe into the downstream of the pipe laid under the channel dam, the end of which is connected to a pipe installed on one or another depth.

The disadvantage of this device is the presence of concentrated discharge of water from the pipe (including into a small watercourse), which subsequently leads to the formation of a washout funnel and the development of ravine erosion in the watercourse.

The purpose of the invention is the creation of a device with controlled release and discharge of water from the channels of irrigation and drainage systems for its subsequent supply to the hydrographic network for flooding of natural water bodies.

The problem to which the invention is directed is to quench the excess energy of a concentrated water stream coming from a water outlet-water outlet pipe supplied to the upper elements of the hydrographic network (hollows, hollows, ravines, gullies) for irrigation of low-water natural water bodies.

The technical result, to which the claimed invention is directed, is to expand the functionality of channels of irrigation and drainage systems through the controlled transfer of part of the water resources to irrigated water bodies by means of erosion-safe water outlets-outlets.

The technical result is achieved due to the fact that along the route of the irrigation-watering canal and at the areas of its intersection with small watercourses within the channel bottom, a water outlet-water outlet is arranged, including a water intake part (inlet head), a water outlet made in the form of a pipeline with an element that controls the flow rate output part (output head) of the pipeline, equipped with a perforated diaphragm of round or semicircular shape. The flow rate of water discharged from the canal to irrigation of water bodies is regulated by means of a valve and a variation in the diameter of the water outlet-water outlet pipe, and erosion-safe water drainage from the device is ensured by dispersing the water stream into separate streams by means of a downward outflow of part of the water flowing out of the pipe through the openings of the perforated diaphragm .

The invention is illustrated by the following drawings: FIG. 1 - Section along the longitudinal axis of the outlet-water outlet with a circular diaphragm; FIG. 2 - Plan of the channel with the drain-outlet with a circular diaphragm; FIG. 3 - Section along the longitudinal axis of the outlet-water outlet with a semicircular aperture; FIG. 4 - Plan of the canal with a water outlet-outlet with a semicircular aperture.

The numbers in the drawings indicate: 1 - irrigation and watering channel; 2 - water intake hydrographic network; 3 - water intake head; 4 - water transport pipeline; 5 - locking regulating device; 6 - output tip in the form of a hydrant; 7 - perforated diaphragm; 8 - sub-diaphragm water intake.

The water outlet-water outlet from the channel into the elements of the hydrographic network (Fig. 1-4) is performed as follows.

On the route of irrigation and watering channel 1 or at the areas of its intersection with small watercourses (gullies, hollows, hollows, ravines), a water outlet-drain is arranged, which provides controlled water intake from the channel and its erosion-safe flow into the flooded natural objects of the hydrographic network. The construction provides the functions of a water outlet, a water outlet, and a peak (hollow, hollow, ravine, and girder) hydraulic structure. The water outlet-water outlet from channel 1 to the intake of the hydrographic network 2 includes: a water intake (inlet) head 3, which provides water intake for controlled watering (or when emptying the channel); a water transport pipeline 4 with a locking and regulating device 5 arranged thereon; an output tip in the form of a hydrant 6, providing free exit (spout) of the ascending water stream above the earth's surface with a perforated diaphragm 7 of circular or semicircular shape fixed on it; a sub-diaphragm water intake 8, intended for receiving separate (dispersed) jets of water descending from the aperture of the diaphragm and erosion-safe discharge of it into a natural water body 2.

The device operates as follows.

When you open the locking and regulating device 5 on the water-transporting pipe 4, water is supplied from the channel 1 to the outlet-water outlet. The water flow enters the hydrant 6, through the opening of which flows freely on the surface of the perforated diaphragm 7, while part of the water flow flows into the sub-diaphragm space in the form of separate flowing jets. When the dispersed flow of water into the intake 8 provides the quenching of excess water energy of the water stream and erosion-safe flow of it into the irrigated water body 2.

The developed device provides:

- regulated water supply from the canal to the elements of the upper (“ravine-gully” and (or) “hollow-hollow”) hydrographic network, which ensures artificial flooding of natural watercourses (gullies and small rivers) for subsequent targeted or integrated use of their water-resource potential and improvement of the ecological state of irrigated water bodies (territories);

- adjustable emptying of canals (planned or emergency) with simultaneous watering of natural (natural) water bodies;

- water supply (drain) safe for natural elements of the hydrographic network, excluding (substantially reducing) the intensity of ravine-girder ("linear") erosion in water inlets (hollows, hollows, ravines, gullies).

The device as a whole provides the solution of three functions (controlled release, water discharge from channels and its supply to the hydrographic network) of flooding of natural objects.

The application of the invention will not only expand the functionality of large channels of irrigation and drainage systems, but also provide irrigation of low-water streams of the hydrographic network, excluding a number of negative phenomena, the formation of which is possible with the surface transfer of water resources.

Claims (2)

1. The water outlet-water outlet from the channel into the elements of the hydrographic network, including a pipe into the downstream pipe laid under the channel dam, characterized in that a water outlet-water outlet is arranged along the route of the irrigation-watering channel and at the sections of its intersection with small watercourses within the channel bottom including a water intake part, a discharge water conduit made in the form of a pipeline with a flow regulating element of the outlet part of the pipeline equipped with a perforated round or semicircular diaphragm. 2. The device according to claim 1, characterized in that the regulation of the flow rate of water discharged from the channel to the waterlogging of water bodies is carried out by means of a valve and by varying the diameter of the water outlet-drainage pipe, and erosion-safe water removal from the device is provided by dispersing the water stream into separate streams by means of a downward flow of part of the water flowing out of the pipe through the openings of the perforated diaphragm.

Images