SU44183A1 - Sliding valve for hydraulic structures - Google Patents

Description

The invention relates to slide valves of hydraulic structures and consists in the fact that the guide supports of the gate, having a vertical pressure face, are located obliquely in the direction of the lower reach. This is meant to facilitate the lifting of the shutter.

The shutter can be divided in height into several sections in order to raise and lower each of them separately.

The shutter may be used to close trapezoidal openings, the implementation of which may be more advantageous mainly in single-span structures (as compared to rectangular ones), both hydraulically and statically.

In FIG. Figure 1 shows, for example, a cross-section (along AB in Fig. 2) of the invented closure, divided into sections along the height and intended for trapezoidal openings of the structure; FIG. 2-facade of the same shutter; FIG. 3-plan part of the shutter; FIG. 4-diagram of the upper section of the shutter; FIG. 5 and b-lifting devices in two projections; FIG. 7 and a CD T-section in FIG. one.

The shutter shown for example in the drawing and intended for trapezoidal openings of structures is divided in height into three sections /, 2

(215)

And 3, of which sections / and 2 have a rectangular outline, and section 3 is a trapezoid shape with a rectangular notch in the lower part (Fig. 4). Section 3, with the shield closed, rests its faces / b on the concrete protrusions 14. Wooden section / board sheathing fits to two metal frames 6 of equal angular iron resting on the guide supports of the Y. The frames are interconnected by an angular iron to obtain the necessary section stiffness. For raising the section / serve the blocks // (fig. 1), embedded in the masonry, and blocks // (figs. 5 and 6) fixed on the pipes or shafts rotating in the corners 75, which in turn are attached to the channel of the service bridge 17. Through the blocks, the passage of cables or hemp ropes, the lower branches of which pass through the holes in the frames b, while the upper ones are attached with ends to the outer edges of the frame elements normal to the supports,

By rotating the shaft of the upper blocks, on which ratchets with dogs are mounted, you can raise the section / or lower it. The skew of the section during its movement along the supports is prevented by the angles sliding along the guide support 10 (Fig. 7). Section L, like all others, can open and

close independently of the others, as can be seen from the drawing. By this circumstance, any degree of control of the abstracted water flow can be achieved.

Section 2 of the shield is similar to section /; the difference lies in the fact that its lower units / 2 (Figs. 1 and 7) are reinforced in the gap between the corners of supports 9 and / L. The blocks attached to the supports, as can be seen from the drawing, do not interfere with the movement of adjacent sections / and 5. Section 2 has frames 5 of the corners (Figs. 1 and 7), supported by guides P, W.

The lower branches of the cables or ropes / P, thrown over the blocks 2 and 12 (Figs. 1 and 5), also pass through the holes in the frames, while the upper branches are attached with their ends to the outer edges of the frames.

Section 3 has four frames and 7, to which a wooden common wall is attached. The frames 4 rest on the guide angles 9 (Fig. 7), and the frame 7-- on the angles 8 (Fig. 7).

The lower blocks / 5 for lifting sections are fixed on supports. The upper blocks / J are mounted in the same way as blocks // and / 2 (Fig. 5 and b). Cables or ropes 20 are arranged in the same way as for sections I and 2.

The described construction of the shutter with, is one of the following considerations. With a vertical solid shield and support racks inclined towards the lower reach, during its rise, water will immediately begin to flow into the lower reach from under the shield and through its ever increasing sides, which will cause, in the initial moment of launch, dangerous facilities. Therefore, the shield is divided in height into sections, of which each must be raised and lowered independently of one another. Then the above-mentioned phenomenon is minimized, the degree of control of the flow rate increases and becomes equal to the vertical flat panels with vertical supports, and, apart from everything, the magnitude of the lifting force. In the latter respect, it is possible to combine all the elements in such a way that simple winches will serve as lifts, since the magnitude of the lifting force is divided into several unequal parts.

In order to obtain hydraulic working conditions that are identical with water intake structures that have a rectangular opening, it is necessary to start from section L when opening the described shield and then to open section 2 and finally section 3. When closing the opening of the structure (to comply with the above conditions), you must first lower section 3, after it section 2 and, finally, section /.

In FIG. 1, the dotted line shows the position of the cladding sections when they are raised.

The subject matter of the invention.

Claims (3)

1. A slide valve for hydraulic structures, having a vertically located flat pressure face, characterized in that its guiding supports are inclined towards the lower pool in order to facilitate the lift of the gate, 2. A closure according to claim 1, characterized in that it is divided in height into several sections I, 2, 5 having separate inclined guide supports in order to be able to separately lift sections in any order in order to pass water from any height of the upper the pool 3. A block according to claim 2, characterized in that the pressure faces of the lower sections 7, 2 have a rectangular shape, and the top of the upper section is a 3-shape trapezoid with a rectangular notch in the lower part, with a trapezoidal opening for which the shutter is designed, has protrusions J4 corresponding to the shape of the shutter. To the author's certificate of M. M. Sveshnikov No. 44183 . Fig1 fig2