SU1548333A1 - Drainage manifold mouth - Google Patents

Abstract

The invention relates to hydraulic melioration and can be used for drainage on reclaimed land. The purpose of the invention is to increase the drainage and moisturizing effect of drainage. The mouth of the drainage collector is made of a wellhead pipe, equipped with a drainage pipe Z - shaped. At the outlet of the spillway pipe 4, a float tank 5 is installed. With the help of the installed guide roller 11 and the V-shaped slot 10, the outlet part of the spillway pipe can be installed downstream and downstream of the water in the channel. Using a guide roller 7 fixed on the nozzle 3 and an inclined slot 6 in the pipe 2, the float can be moved vertically, with the result that the outlet part of the overflow pipe with the float fixed on it will be in the zone of greatest speeds. When draining the pipe is directed downstream, creating a vacuum, and when wet - backwater in the drainage line. 3 il.

Description

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FIG. Z

Slot 10: The outlet portion of the spillway port can be installed either downstream or downstream of the water in the channel. With the help of a guide roller 7 fixed on the nozzle 3, and an inclined slot 6 in the tube, the float can be moved vertically, resulting in a 15 8333 "

The main part of the spillway pipe with the float fixed on it will be in the zone of the highest speeds. When draining the pipe is directed downstream, creating a vacuum, and when wet - backwater in the drainage line. 3 il.

The invention relates to hydraulic melioration and can be used for drainage on reclaimed land,

The purpose of the invention is to increase the drainage and moisturizing effect of drainage.

Fig. 1 shows the mouth of a drainage collector at high levels of an ox in a channel, a general view; Fig. 2 is a section A-A in Fig. 1 (channel when operating in the dehumidification mode); on fig.Z - the same, in the mode of moistening,

The mouth of the drainage collector consists of a blind pipe 1 with a knee-shaped outlet 2, an intermediate pipe 3 and a water outlet pipe 4 of a Z-shape. The latter has a float tank 5

At the knee-shaped outlet 2 of the blind pipe 1 there is an inclined slot 6 in which the roller 7 freely moves, rigidly mounted on the narrow end 8 of the intermediate pipe 3, inserted with a gap into the knee-shaped exit 2, where an elastic sealing ring is fixed at the end of the intermediate pipe 3 9. At the other end of the intermediate pipe 3 there is a V-shaped slot 10 in which the guide roller 11 freely moves, rigidly mounted on the narrow end 12 of the overflow pipe C, inserted with a gap in the overflow nozzle. In the intermediate pipe 3, an elastic sealing ring 13 is also installed at the end of the spillway pipe. The tube 1 is rigidly connected by a coupling 1, which has hook-open terminals 15 to the drain collector pipe 16. The mouth is installed in channel 17.

Mouth works as follows. Regardless of the position of the water level in the channel, the outlet of the water inlet pipe k is always

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at the surface of the water in the zone of greatest speeds. At high water levels in the canal caused by rising groundwater, the outlet of the overflow pipe is directed along the flow of water in the canal. Due to the flow of water over the spillway pipe C, the pressure in the latter decreases, causing a decrease in pressure in the drainage collector and a corresponding increase in the water inflow in the drain. In this case, the roller 7 is located at the top of the inclined slot 6.

When the water level in the channel is lowered, the overflow pipe k and the intermediate pipe 3 are lowered, turning around the longitudinal axis 0-0 of the narrow end 8 of the intermediate pipe 3, which rotates to the inside of the elbow exit 2 as a result of the roller 7 moving along an inclined slot 6 and is pressed against the sealing ring 9. The joint between the intermediate pipe 3 and the elbow exit 2 is sealed.

When the water level in the channel is lower than the bottom of the drainage collector, a hydrodynamic vacuum occurs in the latter, equal to the difference between the water level in the channel and the bottom of the drainage collector in addition to the vacuum formed by flowing a water overflow pipe

When water is supplied through the channel for subsurface moistening in the wrong direction as it moves during drying (Fig. 3), the overflow pipe k rotates 180 ° around the longitudinal axis B-B of the narrow end 12 so that its outlet was directed against the movement of water. In this case, the guide roller 11, moving along the V-shaped slot 10, causes the movement of the narrow end 12 from the intermediate pipe 3 with the subsequent movement of

pressing it inward and pressing it against the elastic sealing ring 13, which ensures consistent sealing and loosening of the joint between the connecting 3 and drainage k nozzles.

As a result, the hydraulic head in the cavity of the drainage collector increases by the magnitude of the velocity head, and accordingly, the outflow of water from the drainage to the subsurface humidification increases.

Claims (1)

Invention Formula The mouth of the drainage collector, including a wellhead with a knee-shaped outlet, is characterized by 20 BUT . M /// /// /// /// /// S / S /// 0 five 0 so that, in order to increase the drainage and wetting effect of drainage, the mouth is equipped with a Z-shaped spillway pipe, having a float tank at its outlet part connected to the knee outlet through an intermediate nozzle, while at the knee outlet of the wellhead pipe an inclined slot is made with free mounted in it by a roller rigidly fixed at the end of the intermediate nozzle, entering into the knee-shaped outlet, and at the other end of the intermediate nozzle a V-shaped ez with freely installed therein guide roller fixedly secured to the adjacent end of the drain pipe. fzg.1 Aa W t V / /// // W /// / S / / TV /// /////, ®ig.z