Hydraulic ram

FIELD: engines and pumps.

SUBSTANCE: hydraulic ram comprises water source 1 parted by the web with tubular pipe 3. The latter is connected with accumulation chamber 4 accommodating curved rotary gate 5 with float 10 to shut off the outlet of pipe 3 aligned with open inlet 14 of feed pipe 13. Gate 5 has outlet 11 arranged at its bottom and shutoff by check valve 12 of the side of pipe 3. End of feed pipe 13 has chamber 17 to accommodated air cap 35 and impact valve 18. Said valve 18 makes a throttle connected with float 19 in adjustment chamber 26 Said web is arranged on the side of discharge pipe 27 and composed of suction board 29 that allows its adjustment to develop required difference between levels.

EFFECT: higher efficiency and reliability, fast response, lower drag in hydraulic drive.

3 cl, 2 dwg

 

The invention relates to a pump engineering turn out, in particular, to the design of hydraulic collision attacks based on the use of hydraulic shock, and can be used as vodopodyomnaya in the system of land reclamation and water management. Such sources can serve as rivers, canals, reservoirs, with the movement of the water, ensuring integrity of hydracarina.

Known air cap of hydracarina, comprising a housing with an air and liquid compartments, an inlet valve and fitting pressure line, a piston dividing the housing for air and liquid cavity and rigidly mounted spring-loaded rod that has a stroke limiter (Copyright certificate EN 1224464, CL F04F 7/02, 1984).

The disadvantage of this device is low efficiency due to waste energy on challenging management position of the shock valve, designated high-altitude location in the body and depending on the weight of the valve, that is to lift a certain part of the height you need to expend a lot of energy flow. In this part of the unproductive energy is lost to resistance in the case when a large enough weight. In addition, the air cap, provided with a piston, requires additional effort on the ascent of the piston in the housing, which requires maximum effort pressure is in the pipeline, i.e. the part of the unproductive energy is lost when the hydraulic shock rise from the horizon in the case of the air cap. Therefore, advanced and proposed artificial recharge compressor through a spiral tube in the lid, which leads to higher operating hydraulic RAM.

Another major drawback is the low reliability and poor performance at work, i.e., there is a great inertia action in the work, and this reduces the performance and strength of the hydrodynamic pressure drop valve to ensure that it works.

The closest in technical essence and the achieved result is a hydraulic RAM (prototype) containing the pipeline with the camera, which is its sequel, having a round cross-sectional shape equal diameter, percussion and discharge valves, air cap to the discharge pipe, while the shock valve includes a hydraulic actuator, the control mechanism and is designed as a throttle valve, the axis of the hinge of the valve is in the pipeline and the discharge valve has a saddle above the supply pipeline and further comprises a chamber with a partition wall provided with a discharge pipe (Patent RU 2489605, CL F04F 7/02, 2013).

The disadvantage of this device is nedostatochnosti and performance due to hydraulic resistance caused by the reciprocating servo motor associated lever with shock valve; at the moment of actuation of the shock valve is a noticeable lag actions contributing to slow water flow not only in the air cap, but also to the exhaust side of the supply pipeline in the camera control, which increases the inertia of the repeated period of acceleration of flow and reduces the productivity of Tarana. It is also related to the fact that the shock valve and the regulating chamber located on one side of the feed line on the horizontal section of sufficient length feed line. In addition, there is a large discharge of fluid through the duration of the switching time of the piston of the servo motor (lag when you period of acceleration of the stream).

The technical result that can be obtained through use of the proposed technical solution is to increase efficiency by reducing the flow resistance in a hydraulic drive, improve performance and reliability in transient conditions and technology of its manufacture.

The technical result is achieved by the hydraulic RAM (containing the supply pipe with the camera, which is its sequel, having a round cross-sectional shape equal to him is iameter, shock and discharge valves, air cap to the discharge pipe, while the shock valve includes a hydraulic actuator, the control mechanism and is designed as a throttle valve with the pivot axis and the discharge valve has a saddle above the supply pipe, and further comprises a second chamber with a partition wall provided with a discharge pipe, Taran contains regulatory chamber of accumulation in which you have entered the pipe, the output of which is placed a curved shutter associated with the float, and a gate connected to the lever, mounted on a horizontal axis of rotation, and in the wood of the shutter executed outlet located in the lower part and on the part of the pipe is a check valve with the possibility of overlap of the exhaust hole in the bolt, in this case the supply pipe at the entrance has a profile defined on a circle equal to the diameter of the curved shutter alternate overlap nozzles and supply lines, and hydraulic shock float valve are placed in the second chamber, regulatory performed, and the partition is performed from the side of the outlet pipe and is formed of a retaining structure in the form of shield that is installed with the possibility of vertical movement, when et is m the axis of the hinge of the throttle valve is placed in the chamber, which is a continuation of the supply pipeline.

In addition, regulatory Luggage accumulation includes stops to limit the movement of the shutter.

In addition, the saddle pressure valve located on the supply pipe and connected centreceske with him through a nozzle of diameter slightly greater than the diameter of the injection pipe.

This design Tarana by the location of one of the cameras before the air cap includes a socket with diagonal cuts on both sides, allows water to a full cross-section (no air leaks) to enter the accumulation chamber, creating a hydraulic gradient of Z, with an open curved gate, and down the float, when the inlet opening of the supply pipe is closed curved gate into the wood of the shutter is made outlet. In this case, due to the presence of the limiter curve (segment) shutter cannot rise above the inlet of the supply pipe and the inlet opening remains closed, respectively, provides a tight fit of the bolt in the tangent plane. Simultaneously, the second chamber made regulatory, shock valve is located horizontally in the end portion of the supply pipe connected with the second chamber under the action of the weight of the float in the open position is, as the water in the chamber.

As the water level rises in the regulating chamber in the upstream inlet of the supply pipe opens curved shutter due to the ascent of the float, the water enters the second chamber with the float actuator. The level in the second chamber rises together with the float, which rotates the axis together with the shock valve in the form of a throttle valve, and the outlet of the supply pipe is closed. The discharge is regulated by the height of the opening of the flat shield from the discharge line from the retaining structure.

Thus, in regulating the cell accumulates a certain amount of water in both the upper and downstream of the supply pipeline, performing the role of a closed chamber. At this point, a curved shutter closes the outlet short pipe propped up with a jumper as the entire amount not to act in the direction of the shock valve. Curved shutter performs the role of a check valve, preventing the ejection flow back into the chamber, returning it to the side of the shock valve, reducing the acceleration and providing a significant larger supply of water to the air cap. To reduce the instantaneous return and impact of the reverse shock waves on the valve, the cut plane of the inlet supply pipe peracre the and gate, with the slice profile of the inlet, because the force of hydrostatic pressure on the curved plane is different from the pressure on a vertical wall, and the bolt has a through hole, covered by a non-return valve for partial release of water into the chamber, i.e., is it bleeding through the adjustable opening in the shutter.

Thus, there is an alternate filling of the regulating chamber with water, due to its opening and closing a curved gate, which is connected with the supply pipeline, performing the role in the end also the camera and the movement of the shock valve is performed after the end of the quantum depletion of the air cap and liquid transfer to the consumer. This achieves the technical result - the reduction of the inertia of acceleration of the flow, leading to increased productivity, flow, quickly approaching the shock valve, due to the ascent of the float actuator closes it, through a new cycle of surge and water injection pipeline. Thanks to the unit in the form of a flat shield can provide hydraulic communication between the two chambers, which will increase the reliability and performance at work, reduces the resistance values (losses) that are not in known devices. Himself curved shutter can wypolnjatj the sheet of lightweight material.

Thus, by allowing a compact arrangement globe and check valves for shutoff of the supply pipeline in the form of a working chamber having a circular shape, the work comes with great performance for the consumer. Lifting height can reach more than 30 m

Design Tarana simple and reliable for field conditions. Consequently achieved the level of automation of this device compared to the known, and this increase is caused by the connection of the chambers between them, which are fitted with shut-off valve float and the shock valve with float drive.

Impact energy moves much faster and fluid from the feed pipe enters the air cap, next to the consumer, when the diameter of the seat with a short pipe is larger than the diameter of the pressure supply lines. Thus, the efficiency of the device is ensured by improving the layout of the elements of the hydraulic RAM on the short section of the supply pipeline.

In Fig. 1 presents a schematic diagram of the hydraulic RAM, a vertical section; Fig. 2 shows a hydraulic RAM, a General view.

The hydraulic RAM is installed in the water source 1, is partitioned by a jumper with 2 tubular pipe 3 connected to regulate the accumulation chamber 4. In regulated is the fact that the accumulation chamber 4 water has a curved shutter (rotary sector) 5, the lever 6 which is mounted above the tubular pipe 3 in principles 7 through the axis 8 of rotation, to which is fixed a lever mechanism comprising a rotary lever 9 with the float 10, which is also associated with a curved shutter 5 in the form of a shut-off valve. In the skin of the lower part of the bolt 5 from the side of the pipe 3 made the hole 11, is covered by a non-return valve 12. The float 10 is in regulating the accumulation chamber 4, which is connected with the supply pipe 13 and the hole 14. Curved shutter 5 is installed with the possibility of overlap of the pipe 3 and the corresponding alternating overlap the inlet 14 at the beginning of the supply pipe 13. In this case, due to the presence of the stops 15, 16 curved shutter 5 can't rise above the nozzle 3 and the supply pipe 13, the feed holes which alternately overlap the shutter 5 and the float 10, respectively descends or ascends and depends on the level of water in regulating the accumulation chamber 4. At the end of the supply pipe 13 is located a circular cross-section shock chamber 17, in which the output is set drum valve 18 in the form of a throttle valve having a float actuator 19, which, through a lever mechanism rotates the valve 18 on the horizontal axis 20. Rod 21 of the float 19 is pivotally connected through e.g. the work by the lever 22, passed through the connecting rod 23, and the guide 24 is fixed on the vertical wall 25 of the regulating chamber 26 communicating with the discharge pipe 27 with the inlet opening 28, with the retaining device in the form of a shield 29 in the guide 30 to the lift 31. Flat shield 29 is installed with the possibility of vertical movement relative to the outlet 28.

In the upper part of the chamber 17 has a socket 32, which is rigidly clamped to a flat seat 33 with a hole, covered top, for example, reinforced injection valve 34 located inside the air cap 35 having a discharge line 36. At the bottom end of the chamber 17 has a limiter 37.

Hydraulic RAM operates as follows.

From the water source 1, the flow of water, propped up jumper 2, creating a hydraulic gradient (Z) when entering through pipe 3, determines the water level in the accumulation chamber 4, which is determined by the flow then flows into the supply pipe 13 and adjustable shut-off valve in the form of a curved shutter 5. When the water level in the accumulation chamber 4 is lower than a specified point, a curved shutter 5 under the action of the weight of the float 10 is in the closed position (Fig. 1), closing the supply pipe 13. In this case shock valve 20 in the chamber 17 is in the horizontal position.

When the water level in the accumulation chamber 4 float 10 rises to the top position (dotted line), the inlet opening 14 of the feed pipe 13 is opened, and the outlet pipe 3 is closed. The opening of this hole may be defined structurally by the size of the elements of the device.

Location design of lever mechanism associated with a curved shutter 5, retains almost set the entire volume of water in the accumulation chamber 4, the check valve 12 prevents the ingress of water in the supply pipe 13 when the opening of the shutter 5, and when the flow of water through the inlet 14, the flow is moving at high speed from the accumulation chamber 4 in the supply pipe 14 due to its slanted cut vertically, then into the chamber 17, thus achieving the second objective (technical) contacting the regulating chamber 26, creates the content to the calculated water level at the expense of retaining structures in the form of the shield 29. When exceeding the calculated water level in the second chamber 26, performed regulatory, shock valve 18 begins to rise sharply due to the ascent of the float actuator 19 moving along the guide 24. Shock valve 18 closes off the chamber 17 in its vertical position (dotted line) and is adjacent to the stop plate 37. The flow stops, calls the th direct hydraulic shock in the supply pipe 13, creating excess pressure. Part of the flow through the pipe 32 unhindered to the hole of the supporting seat 33, opening the discharge valve 33, and enters the air cap 35, compresses the formed pillow and enters the discharge line 36 to the height h to the consumer. The nozzle 32 is made of a standard product, easy to fit as the connecting link of a flat supporting seat 33 with the round surface of the supply pipe 13, which is, one might say, another task (effect).

At this time, after detecting a predetermined volume of water in the accumulation chamber 4, while the shut-off valve in the form of a curved shutter 5 will again close the inlet opening 14 of the supply pipe 13, acting on its convex part of a panel in the closed position as the float 10 will fall into the lower position. After the direct hammer according to the law of hydraulics pressure drops in the chamber 17 and the second chamber 26, the water level drops and the float of the float actuator 19 is lowered by acting on a lever mechanism of the shock valve 18, which rotates around the axis 20, opens the chamber 17 of the supply pipe 13, thereby enabling the receipt of the remaining water from the supply pipe 13 into the second chamber 26 and further to the outlet pipe 27, so korost flow almost suppressed to zero. The level in the accumulation chamber 4 is lifted off together with the float 10, which rotates the axis 8 with the shutter 5, and through the opening 14 receives a new portion of water from the accumulation chamber 4, which is also the next task (the technical result - the reduction of the inertia of acceleration of the flow, leading to increased productivity, flow, quickly approaching the second chamber 26, which is the regulatory, fills it, the float actuator 19 POPs up, shock valve 18 closes the chamber 17, through a new cycle of surge and water injection pipe 36.

The presence of the control mechanism with swivel curved shutter 5 and the movement of the shock valve 18 is followed by fixation at the expense of the stops 15, 16.

In addition, the filling of the regulating chamber 26 with the float 19 change by creating the necessary differential between the chamber 26 and outlet pipe 27 by lowering or raising of the shield 29 by means of screw lift 31 relative to the outlet and thereby setting a specified level of water in the second chamber 26, and then the rest of the water flows into the outlet pipe 27. If the supply pipe 13 is short and the phase of the shock wave becomes smaller than the opening time of the shock valve 18, the check valve 12 compresses the spring and there is a partial etching of the shock wave R is UPE as much to a new acceleration was not preempted full opening shock valve 18, while at the same time provides the drawdown of the second chamber 26.

Thus, it allows on the basis of the interrelation and interdependence of the main nodes of the hydraulic RAM and the location between the air cap 35 on the supply pipe 13 to increase the useful work of the hammer, the energy which opens the discharge valve of the air cap. When the pressure in the supply pipe 13 shutoff valve 12 will again close the opening 11 in the bolt 5.

Efficiency Tarana is simplicity of design and operation, performance of the drawdown and increased productivity, reduced inertia actions. Forming a sharply hammer, allows you to create the air / water mixture of a predetermined density in the cap that defines the height depending on the changing conditions of flow in the supply pipeline.

1. Hydraulic RAM containing the supply pipe with the camera, which is its sequel, having a round cross-sectional shape equal diameter, percussion and discharge valves, air cap to the discharge pipe, while the shock valve includes a hydraulic actuator, the control mechanism in the form drosselweg the valve with the pivot axis, and the discharge valve has a saddle above the supply pipeline and further comprises a second chamber with a partition wall provided with a discharge pipe, wherein the RAM includes regulating the accumulation chamber into which is introduced a lad, the output of which is placed a curved shutter associated with the float, and a gate connected to the lever, mounted on a horizontal axis of rotation, and in the wood of the shutter is made exhaust hole located in the lower part and on the part of the pipe is a check valve with the possibility of overlap of the exhaust hole in the bolt, in this case the supply pipe at the entrance has a profile, defined on a circle equal to the diameter of the curved shutter with alternate overlap nozzles and supply lines, and hydraulic shock float valve are placed in the second chamber, regulatory performed, and the partition is performed from the side of the outlet pipe and is formed of a retaining structure in the form of shield that is installed with the possibility of vertical movement, while the axis of the hinge of the throttle valve is placed in the chamber, which is a continuation of the supply pipeline.

2. Hydraulic RAM under item 1, characterized in that the regulating Luggage accumulation soda is separated by stops to limit the movement of the shutter.

3. Hydraulic RAM under item 1, characterized in that the seat pressure valve located on the supply pipe and connected centreceske with him through a nozzle of diameter slightly greater than the diameter of the injection pipe.



 

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