A device for controlling water levels in hydraulic structures

 

The invention relates to hydraulic engineering and can be used to regulate the level of water in irrigation canals. The device includes wodoslawsky shutter with horizontal axis of rotation. Wodoslawsky the shutter is made in the form of a drum with blades. By forming the surface of the drum opposite to each other are calibrating holes for air and water. The horizontal axis of rotation with their ends secured in the guide with a possibility of free movement in a vertical plane. When changing the drop in water levels in the channel in one direction or another is filling or emptying the internal cavity of the rotating shutter. The shutter is moved along the guides up or down, which in turn changes the flow area for the passage of water. At the termination of the water disappears differential levels, and the cavity of the shutter is filled with water. The shutter is fully immersed. The use of the device allows to reduce the consumption of water for irrigation. 1 C.p. f-crystals, 4 Il.

The invention relates to hydraulic engineering and can be used to regulate water levels in the irrigation channels.

Known devices for regulating water levels nye holes for air and water (USSR Author's certificate 589327, MCI E 02 IN 13/00, 1978).

However, the known wodoslawsky gates structurally complex and regulate the level when you pass water in one direction.

In the proposed device, comprising wodoslawsky shutter, horizontal axis of rotation and an orifice for water and air, wodoslawsky the shutter is made in the form of a drum with blades, calibrated holes for air and water made on a generatrix of the surface of the drum opposite to each other, and a horizontal axis of rotation with their ends secured in the guide with a possibility of free movement in a vertical plane.

In addition, the horizontal axis of rotation associated with counter flow of water.

In Fig.1 shows a cross-section of an irrigation canal with the proposed device for regulating water levels in the irrigation channel, Fig.2 - he is a longitudinal section, Fig.3 is a structural diagram of a hull-borne shutter of Fig.4 is a view As in Fig.1.

The proposed device includes wodoslawsky the shutter 1, the horizontal axis of rotation 2. The shutter 1 is made in the form of a drum with blades 3, the inner cavity 4 which is provided with calibrated holes 5 and 6, located on the generatrix of the surface basvarbocnaa move in a vertical plane and may be associated with a counter flow of water 9. In addition, the device may be equipped with a lifting screw mechanism 10.

The device operates as follows.

Wodoslawsky the bolt 1 is rotated on a horizontal axis 2 with the help of blades 3 in the direction of the water intake, the horizontal axis 2 moves freely in a vertical plane in the guide rails 7 and 8. During the rotation of the drum calibrated holes 5 and 6 alternately immersed in water or communicated with the atmosphere. When the water in the channel formed by the difference in water levels "Z" to the gate after him. Therefore, when the immersion calibrated holes 5 in water from the upper water fills the inner cavity 4 of the drum, as at this time other calibrated holes 6 are communicated with the atmosphere. When the holes 5 will be in the lower reach, is the emptying of the cavity 4 and the replacement of water by air through the holes 6. Holes 5 and 6 are calibrated so as to maintain a predetermined differential in water levels N at the proper flow of the water channel. Therefore, if you change the differential in one direction or another, filling or emptying the inner cavity 4 of the rotating shutter. The result that the shutter 1 is moved along the guide rails 7 and 8 up or down, uvelichivau in the channel. In this case, the inner cavity 4 of the bolt 1 is filled with water up to the maximum capacity. The shutter 1 is fully immersed in water, changing the flow area for the passage of a minimum amount of water.

The number of completed revolutions of the shutter during the passage of water can keep track of water consumption for each section of the channel. For this purpose a horizontal axis of rotation 2 is connected with a counter flow of water 9.

When water intake is carried out on the section of the channel to the gate, there will also drop in water levels H. As a result, the shutter 1 will rotate in the opposite direction, passing water from the lower section of the channel at the top. This allows you not to dump water from the lower section of the channel, and use it for irrigation and thereby to reduce the consumption of water used for irrigation. The screw mechanism 10 is used to lift the drum with its maintenance and repair.

Claims

1. Device for regulating the level of water in the waterworks, including wodoslawsky shutter, horizontal axis of rotation and an orifice for air and water, characterized in that wodoslawsky the shutter is made in the form of a drum with blades, a calibrated hole at back is Naya axis of rotation of its ends secured to the rails with a possibility of free movement in a vertical plane.

2. The device under item 1, characterized in that the horizontal axis of rotation associated with counter flow of water.

 

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