Hydraulic ram

FIELD: engines and pumps.

SUBSTANCE: hydraulic ram comprises feed pipeline, working chamber, impact and delivery valves, air chamber and intake vessel communicated via pipe with working chamber. Extra pipe is arranged parallel with feed pipe. Hydraulic ram is equipped with closed water intake chamber with drain pipe fitted therein. Impact valves are arranged at discharge pipes and connected with control device composed of rotary drive made up of two-arm lever. Arms of said lever are pivoted via links with upper two-arm lever fitted at rotary handle pin. Impact valves are shaped to circle arcs, their diameters being equal to branch pipe appropriate outlets. Center of curvature of said arcs is located at control mechanism axle to cover branch pipes of appropriate housing working chambers in turns.

EFFECT: higher reliability and efficiency.

 

The invention relates to a pump engineering turn out, in particular for hydraulic structures Taranov, and can be used as a water-lifting device.

Known hydracarina installation comprising a working chamber, mounted on her shock and pressure valves, air cap and nutritious and receiving tanks, connected by pipelines to the working chamber, while the shock damper made of the rotary type and is equipped with a hydraulic drive with a power line, on which the membrane cylinders, three-operated valve and actuator valve, and the hydraulic cylinders are connected on one side with nutrients and foster reservoirs, and on the other extreme cameras trilocular valve connected to the supply line. In addition, nutrient reservoir at the entrance to the feed pipe installed float valve (USSR Author's certificate No. 1420249, CL F04F 7/02, 1987).

A disadvantage of the known device is that the cylinders with two-way action when connecting the hose difficulties to get the desired efforts and set speed when driving the changing flow of fluid in the supply line and thereby control the shock valve, there is a time lag process sabotai Tarana. When the two-stroke percussion rotary valve t is PA the liquid should be squeezed out of the supply line, and the excess of her face into the atmosphere. The design of the shock valve of the rotary type with seals is limited by the difficulty of ensuring reliable sealing, especially at high pressures and the composition of the corrosive medium (sand, clay etc). Design Tarana in General complex. The frequency of closing (opening) of the shock valve depends on the amount of fluid in the supply line with the direction of flow in a hydraulic actuator, a part of which is lost on the drain, which ultimately affects the sharpness control shock valve in operation. In such hydrotrans installation you want to provide three valve due to the elevation of the receiving tank above nutrients, so lifting height cannot be lowered more than the estimated value (differential), which affects the overall impact of the valve, i.e. it is necessary to raise some of the water on the horizon, pressure tank, and then use the level difference with the lower reservoir requires additional energy. In addition, there is a large discharge of fluid through the length of the outage from the rotary drum valve is equipped with a hydraulic drive with a power line.

Known analogue (prototype) of the claimed invention, as the closest to him on essential features. The analogue of p is ecstasy a hydraulic RAM, containing the supply pipe with valve and shock valve connected to the pipe, an air cap with check valve and discharge line, additional line, placed parallel to the supply pipe, and connected with the air cap by means of an additional valve, and the piston has a stem with an additional angular piston mirror located primary angular piston (USSR Author's certificate No. 1164473, CL F04F 7/02, 1983).

A disadvantage of this device is that when the angular movement of the pistons, performs the function of shock valves, there are hydraulic resistance in the pipes feeding the liquid into the area of water hammer, which leads to a large pressure to the walls of the housing and to inhibit movement of the shock valve, made in the form of angular piston in the housing with axial movement. The whole construct of the shock valve complex and weighted, resulting in low reliability and efficiency, while changing modes pressures to smart gate with an additional load on top of the removable cargo creates additional difficulties for the friction in the vessel wall, reducing plant efficiency and reliability in aggressive environments (sand, clay etc) when you hit them on the bottom of the connecting point between trubor the waters, so in the clearances of the pistons. In addition, the spreading wave on the straight section along a feed line (without turning the pipe and carrying away part of the energy of the hammer should usually concentrate in the area of the shock valve is not fully used in one of the air cap, which reduces its performance in the mode of the pump. This is because the shock and discharge valves are posted on horizontal sections of sufficient length feed lines and connected with the discharge pipeline sections. In addition, there is a large discharge of fluid through the duration of the switching time of the piston of the shock valve (lag when changing position)overlapping parallel lines.

The purpose of the invention is to enhance reliability and performance by increasing the pressure in the working chamber.

This objective is achieved in that the hydraulic RAM (containing the supply pipe, a working chamber installed on the shock and pressure valves, an air cap and a receiving tank connected by a pipe with a working camera, extra line, placed parallel to the supply pipe, it is equipped with a closed water body in the camera view, which entered the drain pipe, and the shock valves installed on the exhaust pipes and drums of the valves connected to the control mechanism, made rotary drive dual console from the bottom of the arm, the shoulders of which is pivotally connected through a pull from the top dual console lever, located on the axis of rotation and arm, with shock valves have a profile defined by the arc of a circle equal to the diameter of each of the outlet nozzles, the center of curvature of which is placed on the axis of the control mechanism with the possibility of alternating overlapping nozzles of the respective working chambers, paired with a sealed enclosure. When this arm rotation has the lock turning circle, made in the form attached to the handle of the rod and spaced recesses corresponding to the number of positions of overlap of the apertures of the nozzles curved shock valves, and a curved shock valve made in the form of sectors with the angle of the mouth that are multiples of 60, with the nozzle chambers attached the clamps to limit the movement of the shock valves, the profile of which is equal to the overlap of the apertures of each pipe, respectively, said valve is shifted by the value of the multiplicity of sectors.

This design Tarana provides increased water hammer in the supply pipe and develops the same pressure as the well-known pumps of this type. After a certain estimated time to move the shock valves with curved slave is whose surface, and overlaps the other of the inlet pipe, which has an output end, made the same profile as the shock valve. Thus, there is an alternate closing of the nozzles, each of which is connected with the working chamber and prevents the discharge of fluid from the body is executed in the camera view, respectively, in Central drain line, and the movement of the shock valves is made after one measure sabotai air cap and liquid transfer to the consumer at the expense of the rotary knob with lock, for example in the form of a locking screw. The frequency of closing the shock valve, and consequently the performance of the RAM is set by the duration of the interval, with manual control rotary knob can be replaced and telemechanics actuator for remote control adjust the shock valves in coherence with the work of each of the air cap associated with filling cap and the displacement fluid through the check valve and the pipe in the water intake capacity (to the consumer). As you know, all the loads experienced by the valve passes through the axis of rotation. Therefore, the time from the forces of friction is small. In addition, the moment of forces hydrodynamic effect of the fluid on the shock valve can be reduced by changing the calculation of the length of handle rotation, no more than 1520 kgs. The valve itself is made from sheet material in the absence of significant end of the square.

Specified angular size (60 and smaller) pipe relative to the cylindrical chamber made tight housing provides optimum ratio control mechanism of the valve at maximum flow rate to drain through a pipe introduced into the housing and with the regulation of the outlet nozzle connected with the working chambers "Open", "Closed". Thus, by allowing a compact arrangement of the shock valves, arm thrust through snap swivel sector valve for shutoff nozzles of the working chamber, changing the stroke of the pressure of fluid in each turn of the air boxes, working with more performance for the consumer.

Design Tarana simple and reliable even in aggressive environment, resulting in the level of automation and mechanization of this device is increased in comparison with the known and this is due to the connection of the shock valves with lever controlled mechanism.

Impact energy moves much faster and fluid from the feed pipe through the discharge valve air enters the hood, next to the consumer. The discharge of fluid through the Central drain pipe, relieves pressure on the shock valve. Yes the e at overlapping another socket in the camera body, what affects the force applied to rotate the valves rotary knob.

There are no sharp shock by contact with the tubes when changing the closing or opening of the nozzles and their breakdown. Shock valves provided with a sealing element, for example of rubber. Increased control precision and clarity of emptying valves. Thus, the efficiency of the device is ensured by improving the layout of the elements of the hydraulic RAM in a limited area.

Figure 1 presents a schematic diagram of the hydraulic RAM dual action; figure 2 shows a hydraulic RAM, General view; figure 3 - node 1 in figure 1.

Hydraulic RAM provides the supply pipe and the outlet pipe 1 and 2, the first of which has a working sections 3 and 4, each connected to the air cap 5 and 6 and provided with discharge valves 7 and 8. The working parts of the tubes 3 and 4 is connected to the branch pipes 10 and 11 are embedded in a sealed enclosure 12, the shock valve 13 and 14 is in the form of a separate rotary sectors with a curved working surface, the center of curvature of which is placed on the axis 15 of the shock valves 13 and 14 are installed so that they can overlap each nozzle 10 and 11 of the respective working chamber (locations 3 and 4), and the private sector shock valves in angle not more than 60 to the si 15 and the angular sizes of valves shall be decided in accordance with the sizes of overlapping holes of the nozzles 10 and 11 (60 or less), and depending on the angle of the inlet chambers to the airtight casing 12. Curved shock valves 13 and 14 is made of sheet material with rubber gaskets. Including the axis of the actuator 15 of the rotation drive control mechanism includes a bottom dual console lever 16, to the shoulders which are attached the arms 17 and 18. The levers 17 and 18 pivotally connected with the rods 19 and 20, pivotally connected to a top dual console lever 21, is placed on the axis 22 of rotation, on which is fixed a rotary knob 23 with lock, for example, in the form of a locking screw 24. On the cover 25 hermetically sealed housing 12 is made of recess 26 corresponding to the number of positions at the overlapping sections of the outlet pipes 10 and 11 are curved shock valves 13 and 14.

Each nozzle 10 and 11 on each outer side has the tabs 27 and 28, the profile of which is curved shock valve is shifted by the amount in accordance with the size of overlapping holes of the nozzles 10 and 11.

Air caps 5 and 6 are equipped with bypass valves 29 and 30 and also connected vodopodayuschih pipes 31 and 32 through a pipe 33 with the water tank 34.

Additionally it can be installed remote-control actuator for remote control of the rotary knob 23 is installed between the electromagnets (not shown for simplicity).

Hydra is a symbolic value RAM operates as follows.

The fluid flow moving along the supply pipe 1 enters the working sections 3 and 4, and when the position of the rotary valve 14 on the axis "Closed", for example, a pipe 11 connected to the working chamber section 4, the liquid flows into the working chamber section 3 and through the chamber of the housing 12 is discharged into the pipe 12. In the housing 12 there is no back pressure fluid, respectively, is removed the pressure drop valves 13 and 14 within the housing 12. For hydraulic RAM, for example, in the working chamber 3 phase rotary handle 23 through thrust 19 and 20 turn shock valve 13, abruptly closes the socket 10 in the Closed position, causing the hammer in the chamber section 3, the energy of the hammer is transferred to the discharge valve 7, causing the discharge valve 7 is opened and the liquid is expelled into the air cap and then through the valve 29 and vatopediou pipe 31 flows to the pipe 33 in the water tank 34 to the water user.

After a time delay, after depletion of the air cap 5, change the position of the shock valve 14 with a curved surface and sharply overlap another pipe 11 in the Closed position in the corresponding working chamber section 4, i.e. they perform after a definite time intervals defined by the regime of work of the air cap is gidravlicheskiye and opens the discharge valve 8, through which the liquid is expelled into the corresponding air cap 6. Of the cap 6 fluid through the valve 30 and vatopediou pipe 32 enters the pipe 33 and the water tank 34 to the consumer. Thus, the check valve are out of phase due to the last turn rotary knob.

Education zone of reduced pressure in the housing 12 provides a pressure inside a curved profile shock valves 13 and 14.

The presence of a control mechanism with a rotary actuator and the movement of the shock valves occurs with subsequent fixation at the expense of the latch, for example, in the form of a locking screw 24 in the recess 36 of the cover 25.

In addition, the moment of forces from the hydrodynamic effect of the fluid from the working chambers on drums valve can be reduced by calculating the length of the rotary knob 23 in which force may reach no more than 15-20 kgs, the result from the Central control room (DP) send low voltage communication line to the solenoid signal remote control (the design of the anchor rod, i.e. remote-control drive control handle is not shown to simplify the device).

The force required to rotate the axis 22 and to overcome the frictional forces, a minor axis, fixed and hinged rods fixed at two points (the bottom is the first and top dual console levers). As you know, all the loads experienced by the valve passes through the axis of rotation dual console levers connected rods. Therefore, the time from the forces of friction is determined by the well-known formulas.

Specified angular size (60 or less) of the nozzles relative to the cylindrical body with the camera gives the optimal ratio of sizes of the elements of the switching mechanism of the shock valve for a given flow rate of liquid through the body with the regulation of the direction of hydraulic shock in the working chambers, respectively, the free plum in the Central pipeline introduced in a sealed housing 12, in the absence of delay the progress of the shock valve in time.

Due to the location of the device control mechanism with shock valves in the housing, located between the two working chambers, and increases the useful work of the hammer, the energy which opens the check valve (no breakage of the pipes) for each of the air cap, both individually and cumulatively liquid supply to the consumer. Improved performance hydraulic RAM.

In addition, reduced construction costs and material to by-pass piping for discharge of fluid flow after placing the body in a hydraulic RAM (and no need to install cylinder with bilateral angle is new pistons, associated with the rod when it is not required to overcome the large friction forces on the casing wall or jamming in the work in a hostile environment, i.e. it is necessary to maintain strict concentration (alignment) multiple surfaces: the inner housing, the outer piston and rod.

The present invention is simple in operation and highly reliable in operation unilateral actions of each of the shock valve, as desired rotary position in different directions is provided by the wiring and structural dimensions. When moving the rotary arm in one or the other side of the one pipe is opened and the other closed, forming a sharply hammer.

1. Hydraulic RAM containing the supply pipe, a working camera mounted on her drums and discharge valves, air cap and the receiving tank, is connected by a pipeline with a working camera, extra line, placed parallel to the feed line, characterized in that, to increase reliability and performance by increasing the pressure in the working chamber, it is equipped with a closed water body in the camera view, which entered the drain pipe, and the shock valve installed on the outlet nozzles, and the shock valve is connected to the control mechanism, made turning the drive from the lower dual console lever, shoulders which is pivotally connected through a pull from the top dual console lever, located on the axis of rotation and arm, while the shock valve have a profile defined by the arc of a circle equal to the diameter of each of the outlet nozzles, the center of curvature of which is placed on the axis of the control mechanism with the possibility of alternating overlapping nozzles of the respective working chambers, paired with a sealed enclosure.

2. Hydraulic RAM according to claim 1, characterized in that the handle rotation has the lock turning circle, made in the form attached to the handle of the rod and spaced recesses corresponding to the number of positions of overlap of the apertures of the nozzles curved shock valves.

3. Hydraulic RAM according to claim 1, characterized in that the curved shock valve made in the form of sectors with the angle of the mouth that are multiples of 60.

4. Hydraulic RAM according to claim 1, characterized in that the nozzle chambers attached the clamps to limit the movement of the shock valves, the profile of which is equal to the overlap of the apertures of each pipe, respectively, said valve is shifted by an amount equal to the multiplicity of sectors.



 

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