UA151593U - Self-priming floodgate to prevent flood spills - Google Patents

Abstract

The self-priming floodgate has a water barrier with permeable openings with valve gates and an emergency discharge pipe. An ejector pump is installed at the discharge end of the emergency discharge pipe.

Description

The useful model belongs to hydrotechnical structures, designed to prevent flooding of territories due to flooding and can be used to regulate the water level in hydraulic systems.

A well-known device for the prevention of flood spills |1|, which contains sluices-regulators in the form of screens that are quickly mounted. The disadvantage of this device is low reliability, especially in the conditions of mountain rivers.

A universal self-acting protective (flood overflow) structure (2) is known, which contains a number of regulating devices. This structure has a complex design, is difficult to manufacture, install and maintain and cannot perform functions related to tributaries to large rivers.

Also known is the sluice-regulator |Z)І, which contains a water-reflecting wall with a water passage hole with a valve shutter. The disadvantage of this sluice-regulator is the impossibility of regulation at various changes in water levels in the tributary and the main river equipped with a protective dam. Floods are dangerous when the water level in the main river, the banks of which are equipped with protective dams, rises sharply and the water through the tributaries floods the areas behind the dam.

The closest analogue to the claimed useful model is the regulator sluice for the prevention of flood spills I4Y, the common essential features of which and the claimed self-acting sluice for the prevention of flood spills are a water retaining wall with water-permeable holes with valve shutters, which are located vertically and hinged to the water retaining wall with the possibility alternate (from bottom to top) opening of the culvert, as well as an emergency discharge pipe with a non-return valve at the discharge end is additionally installed at an angle to the opening with a valve shutter in the backwater wall.

The disadvantages of this sluice-regulator include the fact that when the water level in the tributary and in the river rises above the culverts, the valve shutters will be in the closed position, and the non-return valve will not work due to the high resistance to the movement of its executive element (valve) in a continuous water environment and will block the emergency discharge pipe, the water level in the tributary may reach a critical level and there is a danger of flooding the territories adjacent to the river behind the protective dam with waters from the tributary.

The basis of a useful model is the task of increasing efficiency and reliability

On the prevention of flood spills of the river and its tributaries.

The task is solved as follows. The self-acting sluice gate to prevent flood spills contains a water retaining wall with sluice holes with valve gates arranged vertically. Valve shutters are made in the form of regulating valves, which are hinged to the water-repellant wall with the possibility of alternating (from bottom to top) opening of water-pass holes. A pipe for emergency discharge of water from the tributary to the river with an ejector pump at the discharge end is installed in the retaining wall. The emergency discharge pipe is installed in the retaining wall horizontally at the level of the highest water culvert. On the side of the tributary, the suction end of the emergency discharge pipe is placed at an angle to the water retaining wall and smoothly lowers its level to the level of the previous culvert. On its end, there is a grid that protects the emergency discharge pipe from hitting large foreign floating objects, but allows fish to swim freely.

The discharge end of the emergency discharge pipe is placed on the side of the river perpendicular to the water retaining wall and smoothly descends to the level of the river bottom and extends to the channel with a high velocity of the current during the flood.

A deaerator is installed at the highest point of the emergency discharge pipe.

A useful model is illustrated by a drawing showing a self-acting sluice with a backwater wall with control valves, an emergency discharge pipe with an ejector pump at the discharge end.

The self-acting sluice to prevent flood spills consists of a water retaining wall (1), in which there are openings (2, 3, 4) with regulating valves (5, 6, 7), which are located vertically in a row and, accordingly, are fixed with hinges (8, 9) , 10) to the retaining wall. An emergency discharge pipe (11) is installed in the retaining wall at the level of the highest hole (4) perpendicular to the river bed. On the inflow side, the suction end of the emergency discharge pipe is located in the plane of the opening (3). From the side of the river, the length of the emergency discharge pipe reaches the riverbed during a flood.

An ejector pump (12) is installed on the discharge end of the emergency discharge pipe (11). A breather (13) is installed at the highest point of the emergency discharge pipe.

On the drawing, the river bed is indicated by position (14), and the tributary bed - (15).

The self-acting sluice gate to prevent leash spills works like this.

At a normal water level in the river 14 and tributary 15, the water from the tributary flows to the water retaining wall because it also flows through hole 2 to the lower valve - regulator 5, which is fixed on the hinge 8,

it opens under the pressure of water, deviating from the surface of the water-deflecting wall 1, and enables the outflow of water from the tributary to the river. When the water level in the river rises above the lower level of hole 2, the regulator valve 5 closes under the pressure of water in the river and water from the river will not enter the inflow. Water from the tributary can flow into the river when it reaches the level of opening 3. If the water level in the river 14 rises above opening 3, the regulator valve 6 will close and water from the river will not flow into the tributary. Similarly, when the water level in the river 14 is raised to the level of the opening 4, the regulator valve 7 will close and water from the river will not flow into the inflow. Thus, when the water level in the river 14 is raised to the level of the height of the protective dam (16), water from the river will not flood the adjacent territory at the point where the tributary flows into the river.

It is possible to simultaneously raise the water level in the river 14 and in the tributary 15. Then the water from the tributary, having no outlet and reaching the level of the bank (17), can flood the area adjacent to the dam 16.

In this case, water from the tributary will be pumped into the river through the emergency discharge pipe 11.

At the discharge end in the emergency discharge pipe, the ejector pump 12 will reduce the pressure and, in addition, the pressure at this end will be less compared to the pressure at the suction end by law

Bernoulli, which will ensure the movement of water from the tributary to the river. The suction and discharge ends of the emergency discharge pipe 11 smoothly change their level to eliminate sharp bends, ensuring free passage of fish between the river and the tributary.

Taking into account the fact that the emergency discharge pipe will be filled with water from two ends, it is possible for air jams to form in it, which will be vented through the deaerator 13.

Thus, the use of a self-acting sluice to prevent flood spills will make it possible to significantly reduce the negative consequences of possible flood spills in the territories.

Sources of information: 1. Patent 2299947 (KI), IPC EO2B 3/00. The device for flood prevention / Voroshilov N.A., Gladshev V.P., Gumerov S.U., Kurguzov V.N.: application. 18.07.2005. published 05/27/2007. 2. Patent 2282694 (KY), IPC EO2B 3/00, IPC EO2B 3/04. Universal automatic protection against flooding construction /Berkov B.V.: statement. 11/19/2003. published 27.08.2006. 3. Patent 21034 Ukraine, IPC EO2B 8/00. Gateway regulator / V. B. Lovtsov, V. B. Danylchuk,

Ko) Klyuha O.O., Ryabenko O.A.: publ. 07.10.1997. 4. Utility model patent 108771 Ukraine, IPC Е0О2В 3/10, 8/00. Sluice-regulator to prevent flood spills / Yaremko 0.E., Vytrykhovskyi E.A.: publ. 25.07.2016. Bul. Mo

Claims (3)

USEFUL MODEL FORMULA 1. A self-acting sluice gate for the prevention of flood spills, comprising a breakwater with permeable openings with valve gates and an emergency discharge pipe, characterized in that an ejector pump is installed at the discharge end of the emergency discharge pipe. 2. Self-acting sluice to prevent flood spills according to claim 1, which is characterized by the fact that a deaerator is additionally installed at the highest point of the emergency discharge pipe. 3. A self-acting sluice to prevent flood spills according to claim 1, characterized in that the suction and discharge ends of the emergency discharge pipe smoothly change their level.