Automatic hydraulic gate

FIELD: hydraulic engineering, particularly means to close water-discharge weir or dam orifices and to regulate water level in water storage pond.

SUBSTANCE: automatic hydraulic gate comprises counterweight and rotary sheet performing rotation about horizontal axis and having working chamber located over the axis of sheet rotation. The working chamber comprises adjustable water intake means. Drainage orifices are created in working chamber from lower pool side. In closed state the sheet may be supported by weir still and by spillway piers so that the sheet is inclined towards lower pool. In opened state the sheet may be supported by spillway piers. Water intake means may be filled with water from upper pool and has inlet orifice located over axis of sheet rotation. Inlet water intake means orifice may be arranged above overflow ridge of the sheet.

EFFECT: increased operational reliability and prevention of water level elevation in upper pool over predetermined mark.

2 cl, 5 dwg

 

The invention relates to hydraulic engineering and can be used for shutting off the outlet holes in the body of the dams and regulation of the water level in the reservoir.

A device for regulating the water level in the reservoir, representing the set on the crest of one of the weirs across the element formed by at least one integral unit, which is made legkorazmyvaemykh or swivelled at a design head of water corresponding to the maximum level of the upstream (UVBmax) when passing emergency flood (EN 2080433, 1997).

A disadvantage of the known device is the complexity of his recovery.

Known to use to cover the holes of the retaining structures valve closures, comprising a panel with a horizontal axis of rotation that is installed on's sill structure (Handbook of hydraulic engineering, M., Selhozizdat, 1955, s, 26-29). Managing such a shutter is carried out by means of additional devices (winches, manual actuators, levers, etc. that is very time consuming.

Known automatic shutter in the form of a flat sheet, rotating around a horizontal axis and stacked on's sill at a certain level of the upstream (SU 18291, 1930).

The disadvantage of this gate is the presence of a greater number of levers, rods, struts and hinges that are wet, which determines the short term and the unreliability of its services. In addition, calculations show that such a shutter may not automatically return to the closed state and in the closed position, it is unstable due to the fact that the support member in its design and has a hinge in the middle, works in compression and the slightest violation of its linearity leads to the triggering of the shutter. The disadvantage of this gate is that it can be installed only on one level of the upstream and adjusting to another level is not subject.

Known hydraulic shutter, including the superstructure with a horizontal axis of rotation located on's sill, while the superstructure is made in the form of a hollow triangular prism, two smaller face which turned to's sill in the direction of the upstream, and the more facets there are two holes (SU 636321, 1978). The shutter works as a float, flood-prone when filling the cavity inside the prism.

The above-described shutter allows you to automatically provide a predetermined water level, however, it is unstable in the open position in the stream. In addition, the fire depends on the level of the lower tail, which, as a rule, is not determinative. The location of the holes through which flows nutrestore water, at the grassroots the skin can trigger the shutter in off-design conditions due to water flowing over the crest of a prism.

The technical result achieved by the invention is to ensure reliable operation of the shutter and prevent lifting of the level of the upstream above the set level.

The invention consists in the achievement of the technical result in the automatic water gate, containing mounted for rotation on a horizontal axis and mounted on the bulls dam shield with internal cavities and the intake chamber and having an overflow crest at the top of the camera - working - has drainage holes on the bottom of the water, and connected with adjusting the valve intake chamber located on part of the overflow crest shield, the lower chamber with the possibility of relying on the threshold of the dam at an inclined position of the shield toward the downstream of and has a counterweight, and the upper edge of the adjusting valve intake chamber located above the overflow crest shield.

In a preferred embodiment, the intake chamber is located on the 1/10-1/20 part of the overflow crest shield.

The invention is illustrated by drawings, where figure 1 shows a side shutter in the closed state, the Phi is .2 - the same in the open position, figure 3 - gate side of the upstream, 4 - stage shutter, where I is the shutter is closed, no overflow, II - shutter steadily closed, there is overflow flow through the crest of the shutter, III - has started filling of the working chamber, is overflow, IV - working chamber is filled, the shutter was opened, sustained in a horizontal position, V - overflow no top, is the emptying of the working chamber, after which the shutter is automatically set to the closed position, figure 5 - principle of operation of the shutter.

Automatic water stopper includes a shield mounted for rotation on axes 1, enshrined in calves 2 dam. The shield has an upper casing 3 and the lower casing 4, between which are located the camera. The upper part of the shield is the overflow crest. The working chamber 5 is located above the axis of rotation of the shield and consists of separate sections connected through holes 6, and has drainage holes 7 made in each of the sections in the lower casing 4, i.e. from the side of the downstream water. The working chamber 5 through the opening 8 communicates with adjustable suction tool that represents the intake chamber 9, with the valve 10 installed with adjustable size and vertical position of the intake holes 11, i.e. the inlet. The input of the intake opening means is located above the axis of rotation of the shield, and structurally, the intake means may be located either on the shield, and perelivom the crest shield. In a specific embodiment, (1) intake tool is located on perelivom crest shield, takes 1/10-1/20 part, while the upper edge of the adjusting valve 10 intake chamber 9 (i.e. inlet) located above the overflow crest shield. The inlet valve is made to fill with water from the upper tail, i.e. is located on the side of the shield, which when it is installed on the dam will be facing towards the top of the water.

Shield length made with the possibility of support in the closed condition, the lower chamber 12 on the threshold of 13 dams with a slope towards the downstream of, and in the closed stable position of the shutter is provided to its reliance not only on the threshold of the dam, but gobies 2 by axis 1. The bottom chamber has a counterweight 14. Structurally, the lower chamber may have the same number of sections as in the working chamber, and each of them can be installed in the counterweight. The angle of the shield is calculated by the sum of the moments.

The area of the drainage holes 7 on the order of less than a square intake holes 11. The volume of the working chamber and the counterbalance weight is determined by calculation based on specific dimensions of the shield, the maximum pressure and overlapped about the ETA.

The shutter works as follows (for the case of the location of the water intake means for perelivom crest shield, and the inlet valve is located above the overflow crest).

In the closed state (when the shield is based on the threshold of the dam and gobies) sustainability shutter is provided that the resultant R of all hydrostatic forces, counterweight and the weight of the gate creates a moment M+holding the shutter in the closed position (figure 5) (I and II in figure 4). This state is stored and when the overflow flow through the overflow crest of the shutter as long as the water will be poured into the working chamber of the bolt through the hole 11 in the intake chamber and then through the hole 8 in the working chamber (III in figure 4). Valve installation 10 intake chamber corresponds to a specified maximum level of water in the reservoir.

After filling with water the working chamber of the sum of the moments of hydrostatic forces and the weight of the shutter counter becomes negative, i.e. the overturning moment M (shown by the dotted line in figure 5) exceeds the restraint, the shutter is rotated on the axis and is placed in a horizontal position based on the butts, opening a hole in the dam to flow both under and on top of the shutter (IV, figure 4). Figure 3 and 4 UBVmax- the maximum level of the upstream, NPI normal supply level.

Perelivayuschayasya dam layer of water and the weight of the water in the chamber to hold the shutter is pressed against the bulls in the horizontal open position.

As a result, the water level in the reservoir decreases, and poured water on top of the shutter stops working chamber is emptied through the drain hole (V 4), and the sum of moments of forces becomes positive, which causes the sliding gate to return to the closed position.

In certain operating conditions the valve set in the shutter position.

At the location of the inlet of the intake means above the overflow crest shield shutter works with overflow to reach the level of the upstream inlet of the intake means.

Described structural features of the shutter automatically prevent the rise of water in the reservoir above the specified maximum level of the upstream and the lack of any kinematic relationships and its full automaticity and can activate only from the water flow makes the design extremely reliable, which is important due to the fact that in recent times due to changes in climatic and environmental conditions became more frequent dam failures, accidents, spillways and flood.

In addition, conventional valves require electricity, hoisting personnel to bring them into action. In extreme high water conditions possible disconnect electricity is, failure of lifting mechanisms, negligence and indiscipline of staff, lack of access gates, etc.

The shutter according to the invention can be installed in remote locations without access to electricity, far from settlements, because it does not require maintenance and works in automatic mode. On the dam can be installed any number of gates, and the sequence of their operation and the number of triggered gates at any level can be selected in accordance with the predicted flood and restrictions on the levels of flooding and the discharged flow.

1. Automatic water stopper, characterized in that it contains a set can be rotated around the horizontal axis of the shield above the axis of rotation of the working chamber with adjustable intake means, and a counterweight, in the working chamber from the downstream of completed drainage holes, while the shield is made with the possibility of support in the closed state on the threshold of dams and calves with a slope towards the downstream of and supports open - gobies, and the intake means is arranged to fill with water from the upper pool and the input hole is located above the axis of rotation of the shield.

2. The bolt under item 1, characterized by t the m that the inlet of the intake means is located above the overflow crest shield.



 

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FIELD: hydraulic engineering, particularly means to close water-discharge weir or dam orifices and to regulate water level in water storage pond.

SUBSTANCE: automatic hydraulic gate comprises counterweight and rotary sheet performing rotation about horizontal axis and having working chamber located over the axis of sheet rotation. The working chamber comprises adjustable water intake means. Drainage orifices are created in working chamber from lower pool side. In closed state the sheet may be supported by weir still and by spillway piers so that the sheet is inclined towards lower pool. In opened state the sheet may be supported by spillway piers. Water intake means may be filled with water from upper pool and has inlet orifice located over axis of sheet rotation. Inlet water intake means orifice may be arranged above overflow ridge of the sheet.

EFFECT: increased operational reliability and prevention of water level elevation in upper pool over predetermined mark.

2 cl, 5 dwg

FIELD: hydraulic engineering, particularly means to close water-discharge weir or dam orifices and to regulate water level in water storage pond.

SUBSTANCE: automatic hydraulic gate comprises counterweight and rotary sheet performing rotation about horizontal axis and having working chamber located over the axis of sheet rotation. The working chamber comprises adjustable water intake means. Drainage orifices are created in working chamber from lower pool side. In closed state the sheet may be supported by weir still and by spillway piers so that the sheet is inclined towards lower pool. In opened state the sheet may be supported by spillway piers. Water intake means may be filled with water from upper pool and has inlet orifice located over axis of sheet rotation. Inlet water intake means orifice may be arranged above overflow ridge of the sheet.

EFFECT: increased operational reliability and prevention of water level elevation in upper pool over predetermined mark.

2 cl, 5 dwg

Water lift unit // 2318956

FIELD: irrigation systems, particularly ones to be used with opened water streams using energy source, for instance hydraulic level drop at retaining structures.

SUBSTANCE: water lift unit comprises chamber with controllable water inlet, water outlet pipe and water lifting means made as pump. The chamber has orifice receiving water inlet flow regulation valve. The valve has float, rod and guiding means. The chamber is connected with water outlet pipe provided with water turbine having shaft extending into chamber interior and communicated with shaft of water lifting means pump.

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FIELD: construction.

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EFFECT: use of the automatic hydraulic device increases reliability of operation, rapidness and accuracy of regulation, improves regulation of the submersion layer of the level basin.

3 dwg

FIELD: oil and gas industry.

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1 dwg

FIELD: construction.

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EFFECT: increased reliability of a device, higher accuracy of control and possibility to adjust system operation into a drying mode.

5 cl, 3 dwg

Drain regulator // 2528210

FIELD: construction.

SUBSTANCE: regulator comprises a body 1, made in the form of a nozzle of rectangular cross section, into the ends of which drainage pipes 2 are inserted into the ends of which at both sides. Inside the body 1 on the horizontal axis of rotation 4 there is a valve 3 installed. The valve 3 is made in the form of a cover 7 equipped with a large float 8 with a canopy 9. The body 1 is equipped with a cross rod with a roller 11, via which a flexible thread 10 is thrown, which connects the valve 3 with a bottom lower gate 12. The gate 12 is balanced additionally with a float of smaller size 14, rigidly connected with the lower part of the gate at the side of the supply drain. Side walls of the body 1 have cantilever longitudinal stops-limiters 5 and inclined stops-limiters 6 at the angle 30…45°, between which there is the valve 3, the large float 8 and canopy 9. In the initial position the valve 3 with the large float 8 and the canopy 9 lie on stops-limiters 5 in the horizontal position, and the lower bottom gate 12 is closed due to its retention in the vertical position via a flexible thread 10.

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2 cl, 2 dwg

FIELD: agriculture.

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EFFECT: improving reliability and accuracy of work by maintaining the water level in the well, flexible and differentiated regulation of preset levels on the command area.

4 cl, 1 dwg

FIELD: agriculture.

SUBSTANCE: in the drain well 1 a chamber 11 is located, communicated with the outlet orifices 12 and 25, and a container 13. In the chamber 11 a float articulation linkage is placed, the rod 18 of which is passed through the orifice 12 into the container 13, in which the cone valve 14 with the load 15 is placed. The container 13 through the pipeline 16 is connected to the outlet drain 4. The bottom of the chamber 11 is communicated with the drain well 1 by the inlet opening 17 and is made in the form of a valve 23 and a float sensor 22 interconnected with the rod with the ability of axial displacement. The inlet opening 17 of the float sensor 22 is formed with projections-limiters 24 with windows. The housing 10 of the shut-off device has a recess in which a pipe 26 with a spring 27 with a screw 28 is placed. The spring 27 is placed in the cavity of the flexible sleeve 29, which serves as protection from clogging with debris and deposits. The sensing element in the form of a spring 27 supports the valve 3 in opening and closing the opening 9 in the seat of the housing 10, which eliminates the shock loading of the valve on the seat in the housing 10. Closing the opening of the shut-off device is carried out only after emptying of the float chamber. As a result of this the work of the float drive is balanced by moments of forces from the minimum to the maximum water level in the well 1.

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3 cl, 1 dwg

FIELD: construction.

SUBSTANCE: system includes supply drain lines 1, manifold 2, and storage well 3, in which siphon block 7 is mounted. The system is provided with self-regulating mechanism 4 of ground water level installed in well 3 and consisting of float chamber 6 rigidly fixed in the upper position above the ridge of siphon block 7 and connected by means of a rigid float drive through valve 8 with a blind section of pipe 13 on a descending branch of siphon block 7. The descending branch of siphon block 7 is connected to discharge pipe 14. Float chamber 6 is connected via hydraulic channel 12 to well 3. The lower part of well 3 is sealed, and above discharge pipe 14 it has outlet opening 15 with branch pipe 17, which is shut off with a level control by means of an additional float drive for control of gate 16. Float gate 16 has L-shaped lever 19 with flange 20, on which float 18 and horizontal plate 23 is fixed. Branch pipe 17 is connected to storage well 3 below the ridge of siphon block 7 by value Δh providing maximum design water filling of well 3 with further discharge to discharge pipe 14. Value Δh is calculated by the following formula: Δh=h1-h2. The self-regulating mechanism is connected to hydraulic channel 12 and well 3 as per a principle of communicating vessels. When the level of the ridge of siphon block 7 is achieved, a charging device is actuated and water discharge through siphon block 7 is performed in a pressure mode to the level of the inlet opening of its ascending branch. The level control in well 3 is actuated when maximum water level achieves the fixed restraining bracket 21, and opening of opening 15 with gate 16 is performed.

EFFECT: use of the invention will allow automating of a ground water level control process and maintaining correct soil humidity balance; automatic flushing of the well with pressure water flow.

2 cl, 1 dwg

FIELD: machine building.

SUBSTANCE: device is located at drainage-watering collector and drainage network. Device contains a drain well 2 with installed drain tip 1, shutdown device, drive and chamber 10 connected by means of the additional chamber 28 with collector 27 cavity. The device is provided with installed self-regulating gear 3 of the regulator in well, and comprises head regulator made in form of the membrane 13 provided at bottom with mesh-type protecting limiter 22 of membrane 13 movement. The membrane 13 is secured at top to the casing 4. The above membrane cavity 12 is connected with atmosphere and with valve 14 and rod 16 by means of two-arm lever 17 with output valve 20 closing the hole 21 in the chamber 10 bottom. The rod 18 of the output valve 20 has piston 19 for water supply in the cavity of the collector 27. The output valve 20 is located in the additional chamber 28, in its side wall the calibrated hole 29 is made, it is connected with well 2. The chamber 10 bottom has inlet hole 23 with valve 24 connected with float 25 installed with possibility of the latter abutment to the limiting shoulders 26.

EFFECT: increased efficiency of the device, operation reliability and quality of the water regulation in the drain system.

3 cl, 1 dwg

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