SU1738909A1 - Cross regulator - Google Patents

Abstract

The invention relates to the field of hydraulic engineering and can be used as a barrier structure and in a complex of water intake structures. The purpose of the invention is to increase the efficiency of operation. The structure contains transverse and longitudinal abutments installed in the channel, as well as a shutter-regulator for regulating water levels in the upper or lower pools, blocking the outlet opening in the open position, which is made in the transverse structure. At the same time, a part of the transverse station elements, located in the channel, performs spillway functions, the longitudinal station adjoins the transverse station in the middle part of the discharge hole on the side of the upper pool, the valve is divided into two parts in light, and the valve is attached to the longitudinal station over the vent hole structures. At multi-span structures in the transverse cavities, several discharge holes are made, each of which is adjoined by a longitudinal link from the upstream side, they are divided into two parts in the light, and above each discharge hole, a gate-regulator is attached to the longitudinal closed position / waste span. 6 Il. k / s. -,

Description

The invention relates to hydraulic engineering and can be used both as a barrier structure and in a complex of water intake structures.

The purpose of the invention is to increase the efficiency of the facility.

Fig. 1 shows a partition structure in a water intake complex, a plan; figure 2 is a view of And figure 1; on fig.Z - section BB in figure 1; figure 4 - section bb In fig. one; Fig. 5 is a plan of a multi-span partitioning structure in a water intake complex; figure 6 is a view of G in figure 5.

The blocking structure included in the water intake complex,

contains (Fig. 1, 2) a transverse abutment 1 installed transversely to the profiled channel of Eki, in the central part of which a drain hole is formed, formed by two weir walls, and the distance between weir walls determines the width of the hole, and the height of the walls 2 corresponds to the height of the hole ; longitudinal abutment 3, mounted in the middle part of the channel and adjacent to the discharge opening of transverse abutments 1 from the upper reach, in the upper longitudinal abutment 3, is fixed on the list beam 4, to which the upstream tail gates, right 5 vCi)

hh

& - i

left b, in the closed position tightly covering the drain hole of the transverse abutments 1.

In addition, the water intake hydraulic unit includes a circulation threshold 7, a water intake chamber 8 and a shutter 9 at the entrance to the main channel 10.

We consider the construction work in combination with the accepted means of hydraulic automation - level regulators 5 m 6 and gate 9, some stabilizing device ensuring stabilization of the flow of water entering the main channel 10 when the water level fluctuates in the upstream of the structure in the range (Fig . 1,2)

AN -Nz- Hi,

where AH is the maximum level of water level fluctuations in the upstream of the structure;

Hi is the design level at which the upstream level regulator is calculated;

Нз is the maximum filling in the upstream of the structure with gaps of the maximum discharge of the river.

In addition, the calculated filling of the headwater level adjustment regulator 5, for the maintenance of which the regulator was calculated, is designated H2 (H; Hi).

The water edges of the transverse structures of the structure are installed at elevations ensuring the effective operation of the structure and from the condition of ensuring that water is drawn into the main canal in the wide range of variations in the water flow at the source (river).

In the absence of excess water flow in the structure, the level 5 and 6 regulators are closed, the Hi filling in the structure does not exceed the calculated filling Hi of the regulator 6 (Hi Hi). In this case, all the water flow in the structure, overflowing through the circulation threshold into the water intake chamber 8, through the gate 9 enters the main canal 10.

When excess water consumption in the river appears, the HI filling in the construction will start to increase, and when Hi filling Hi is reached, the level 6 regulator turns on, which, opening and increasing its opening, ensures that the water flow increases. to the downstream of the structure, while maintaining a constant filling Hi in the upstream of the structure, the bottom pumps transported by the water flow are pushed back by the circulation threshold 7 to the discharge port of the regulator 6 and transported by the stream to the downstream facilities.

With the achievement of regulator 6 of its maximum open, the water level in the upstream of the structure will become unregulated, and with further increase -. In the upper reach, the inflow of the river entering the structure begins to increase, and with the achievement of the filling HI of the value of H2, the control of the 5 level of the upper reach is turned on, which, opening and increasing its opening,

5 further increase of excess water flow, ensures their passage to the downstream of the structure and at the same time maintains a constant filling in the upstream of the structure, or close to H2, and part of the water flow, overflowing the overflow edges 2, is discharged to the downstream structures together with objects floating in the stream (fin).

5At this, (fig. 1,2) the size of the structure

in the upper pool, they are sufficient for passing fin of any size, and the presence of longitudinal abutments 3 does not constrain the upper pool of the structure.

0 With regulator b reaching its maximum open, the water level in the upstream of the structure will again become uncontrollable, and with a further increase in the flow of water in the river,

5, the upper side of the pool will increase, approaching its maximum filling N3, and the overflow layer of water and its width above the weir edges 2 of transverse height 1 will also increase,

0 When the discharge of the river reaches its maximum value, the water flow will be most saturated with bottom sediments and fin, while bottom sediments, entering the structure, are divided into two parts.

5, the longitudinal devices 3, and then through the holes of the regulators 5 and 6 are dropped into the downstream of the structure. The fin also freely passes through the upstream of the structure to the lower one, since the structure does not have any sections that narrow the flow along the top, and the longitudinal abutments 3, located in a fairly wide downstream structure, do not impede the discharge of the fin of any size.

5 In the case of two or more span structures, it is advisable to alternate longitudinal abutments with weirs (Fig. 3). In this case, a significant removal of the longitudinal abutments 3 against each other, and accordingly, a wide spillway

front B (Fig. 5), which allows the construction of a fin of any size (trees, bushes, etc.) to pass through the upper to the lower pool and exclude any blockage of the spans.

In the diagrams shown in FIG. 1.2 it is foreseen that fasteners-regulators 5 and 6 are fastened to the crossbeam, but if the span of the structure is blocked by one shutter (Fig. 3), the crossbeam may be absent and the shutter may be fixed directly to the longitudinal struts of the structure. it to the stands by means of the axis of rotation is necessary to center the shutter-controller.

The effectiveness of the proposed construction of the blocking structure in comparison with the known one is that due to the use of a single longitudinal station in the structure of the structure, the drainage front of the water flow increases, which contributes to the reliability of the blocking building, since in this case the possibility of its clogging with large floating objects, which is especially important when using the blocking structure in the water boric hydro. In addition, by reducing the number of longitudinal abutments, the structure of the blocking structure is simplified.

Claims (1)

Claims of the invention: A blocking structure, including transverse and longitudinal abutments installed in the channel, discharge openings made in transverse abutments, as well as control gates mounted on the discharge openings, characterized in that, in order to improve work efficiency, the longitudinal abutments adjoin from the upstream side to the transverse masses in the middle part of the discharge holes, dividing them in the light into two parts, and the regulator gates are attached to the longitudinal arms above the drain holes, while the lateral hours and transverse abutments adjacent the bleed openings are in the form spillway walls. 1 Si / dA L Fig.Z Sh-sh-i Schigl Fig 5 / X / 3 f /