SU1001021A1 - Level control in water-development works pools - Google Patents

Description

(5) LEVEL REGULATOR IN HYDRO-ENGINEERING CLOTHES

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The invention relates to hydraulic structures and can be used to automate the distribution of water in irrigation canals.

Known segmental shutter, including a pressure plate, provided with a counterweight. The counterweight is supplemented with a water-filled ring-capacitive. with a hydraulic system with a valve control theme. The water level in the channel affects the hydraulic sensors that control, by means of valves, the position of water in the annular container. Due to the change in the center of gravity of the ring capacitance, the moment of the counterweight force changes, which opens or closes the bolt.

However, the shutter is bulky and difficult to manage. Passing normal costs through the construction is difficult, since the valve creates increased hydraulic resistance Through FACILITIES

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the facility does not allow floating debris.

Closest to the proposed technical solution is the level regulator in the pools. The device includes a shelf connecting the shore abutments to which the pressure shield is attached and two flaps having articulated joints with the shelf and pressure shield and forming a reservoir with them.

The tank is equipped with a water inlet with a float & valve and water outlet. When the upstream level is changed, the float valve adjusts the degree of filling of the tank, which in turn changes the angle of inclination of the shield and the value of the flow through flow 2.

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The disadvantage of this design is the large number of hinged links, which requires additional sealing.

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In addition, it is difficult to make a reliable lateral seal for a regulating vessel, which changes its cross-section during operation. These deficiencies prevent the introduction of structures on the melioration channels 2J,

The purpose of the shadow is to increase the regulator's confidence.

The goal is achieved by the fact that in the level regulator in the pools of hydraulic structures, containing a pressure shield installed on a horizontal axis of rotation, and the tank, the latter is formed by a pressure shield and two sectors mounted on a horizontal axis of rotation, the first of which is fixed x, and the second sector is fixed on the lower edge of the pressure shield, is provided with drain holes on its curved surface and is capable of moving inside the first sector, provided with A version with a valve mounted on it, connected to a lever pivotally connected to the first sector and provided with a counterweight.

Fig. G 1 shows the regulator in cross section in the locked state j in Fig. 2, the same, when passing the flow; FIG. 3 is a view of the downstream regulator.

The automatic regulator (Fig. 1) contains a tank consisting of two sectors. The first sector 1 is fixed on the beams 2 (figs 3) between the coastal STAGES of channel 3

On the horizontal axis of rotation a pressure shield 5 is placed. On the pressure shield 5, a second sector 6 is fixed, which enters the first sector 1 with movement and has in the lower part of the pressure face a row of drain holes 7 (fig. 3) to fill the container. sector 1 fixed seal 8 with clamps 9 On the first sector 1 there is a valve 10 mounted on a hole in the first sector and connected with a lever 11 pivotally connected to the first sector and provided with a counterweight 12

The device works as follows.

Water through the drain holes of the second sector 6 fills the tank and, with its weight, holds the pressure shield 5 in the raised position, lifting

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water level in the upstream to the estimated. The lower position of the drain holes 7 provides washing tank when silting. Lry boost

the water level is higher than the calculated total load on the upper part of the Shield 5 will exceed the load on its lower part and it begins to overturn, squeezing the water out of the tank through the drain

openings 7. If the excess level is insignificant, the flow of water through the drain openings 7 is enough to control the regulator. If the channel has increased flow rate, the capacity

it does not have time to empty through the opening 7; the pressure in it 7 increases and the valve 10 opens, which speeds up the shutter release and prevents the channel 3 from overflowing.

The design of the regulator is more reliable in operation as compared with the prototype and more technological in manufacturing. “The regulator passes flow through the pressure shield and under it, which

ensures the cleanliness of the canal before construction. Due to the fact that the tank is made split, its hydraulic resistance area decreases when skipping increased flow rates.

The use of the proposed design of an automatic regulator and by increasing labor productivity and reducing operating costs will allow saving from 100 to 300 rubles per controller.

Claims (1)

1. USSR author's certificate N. CL, EO. In 7L., 1975. 2 USSR author's certificate tr 809087, cl. E 02 B 7L2, 1979 (prototype). 0fff.J