Hydraulic ram

FIELD: engines and pumps.

SUBSTANCE: hydraulic ram comprises feed pipeline, case shaped to air cap with intake valve and hammer valve. This ram comprises open adjusting tank with drain pipe and hammer valve. Second hammer valve is arranged in intake vertical overflow pipe communicating both tanks. Second hammer valve is engaged by float-type articulation-leverage drive arranged inside the tank. Both hammer valves are arranged parallel with feed pipeline.

EFFECT: perfected design.

3 cl, 1 dwg

 

The invention relates to a pump engineering turn out, in particular, to the design of hydraulic Taranov, and can be used when designing systems transporting liquids, in practice lifting in the system of land reclamation and agriculture.

Known air cap of hydracarina, comprising a housing with an inlet valve and fitting on the discharge side and mounted in the housing, the piston, the latter is mounted on a spring connected to the housing, and is made in the form of a cylinder mounted coaxially to the housing, and at the bottom of the housing is rigidly fixed to the guide cylinder mounted between the housing and the piston (USSR Author's certificate No. 1250736, CL F04F 7/02, 1986).

Lack of hydracarina is the low reliability due to the complexity of the design, including mobile elements in the form of a shock with the valve stem and progryzennym removable cargo weight shock valve, spring ephemeral in a hostile environment, which leads her to break, to which is fixed a piston placed in the cylinder. The complexity of such hydracarina in motion causes an increase in dynamic loads, as well as the shock valve. There are conditions of jamming of the elements of the device.

Closest to the present invention is an air cap of hydracarina, comprising a housing with an air and liquid on the awns, inlet valve and fitting on the discharge side, a cap provided with a piston which divides the casing air and the liquid cavity, and fixed spring-loaded rod that has a stroke limiter (USSR Author's certificate No. 1224464, CL F04F 7/02, 1986).

Lack of hydracarina is low productivity. The design of the shock valve closes the flow area of the supply pipeline, however, a large lag in its performance degrades Tarana. Need artificial recharge of extreme pressure cap with spring-loaded piston, and the use of an additional compressor, the complexity of the device.

Another disadvantage is the insufficient use of the potential opportunities associated with the movement of the piston in the shock valve up and down while idling.

The purpose of the invention is to enhance reliability and performance by reducing the dynamic loads on the shock valve.

This goal is achieved by the fact that the hydraulic RAM containing a supply pipe, a casing in the form of an air cap with the inlet valve and the shock valve, it is equipped with an open-regulating capacity with drain pipe and drum valve and the second shock valve is located in the input vertical paralelno the pipe, reporting capacity among themselves, while the second shock valve associated with the float lever actuator placed in the tank, both the shock valve is installed in parallel to the supply pipe. In addition, in order to reduce the metal drums valve without increasing the loss of power to the actuator, the second shock valve ball made in the drain pipe installed replaceable calibrated aperture.

The problem to which the invention is directed, is to increase the reliability and reduce the dynamic loads on the shock valve.

Therefore, both shock valve for filling containers, overlap in her inlet. Then the flow of water in the supply pipe at the expense of impact kinetic energy presses on the inlet valve air cap, there is a hydraulic shock.

In the period of rise of water level in open adjustment capacity, the water gradually fills her through the first and second shock valves, and the second shock valve, placed in the input vertical and perelivom the pipe pivotally connected with the arm and with a float placed in a regulated capacity. When the float comes up, and lever actuator acts on the second shock valve ball made. Simultaneously with the closing of the hole in the EAP is SKN vertical pipe, the pressure in the pipeline increases until, while the shock valve in a management capacity will not be closed until a predetermined pressure in the pipeline, and hence the pressure increases, there is a hydraulic shock, the pressure which opens the inlet valve on the cap and the fluid enters the air cap.

Therefore, the second shock valve with lever actuator works in the mode control valve regulating an open tank. The process of hypersensitivity due to mutual hydraulic connection of the shock valves in transient filling regulatory capacity and drain it through the drain pipe with interchangeable calibrated aperture. Next, the process of automatic operation of all elements of the hydraulic RAM is repeated.

In operation mode the shock valves are not presented to them by the high quality requirements of water purification from suspended sediments, reduced transposition force on the hydraulic unloading shock valve. The time required for the gradual gravity outflow of water from the tank through the drain pipe with interchangeable calibrated aperture located in the lower part of the bottom, when lowering of the float support is a given period of time. Compact, efficient design of the new device has a practical use what begins as a water-lifting device.

You should pay attention to the shape of the second shock valve that form allows you to unload in the input vertical and spillway inlet from the direct efforts of the pressure line when filling an open controlled tank with a float.

By streamlining and reducing the energy of the reflected shock wave increases the useful work of hammer and improved performance hydraulic RAM.

All this provides a reduction in the persistence of the shock valve transients, i.e. opportunities associated with the movement of the shock valve up and down.

The constructive dimensions of the input vertical pipe, placed in the vessel, the second shock valves are set for a specific hydraulic modes of operation, taking into account the response time of the regulatory capacity by draining the water through the exhaust pipe with interchangeable calibrated orifice.

Hydraulic RAM (see drawing)contains the supply pipe 1, the open regulatory capacity of 2, is hosted on the supply pipe 1 with a bottom drain pipe 3. To change the time draining the water on the drain pipe 3 has a replaceable calibrated aperture 4 with the valve 5. In a regulatory capacity 2 posted by the input vertical overflow pipe 6 communicating with a capacity of 2. Regulating tank 2 is supplied to the d the e the shock valve 7, and the input vertical overflow pipe 6 in the upper part has a second shock valve 8. In regulating the open vessel 2 is also the float lever actuator interacting with the second shock valve 8. The float lever actuator includes a control arm (wishbone) 9, one end of the fixed via a hinge 10 with the container wall 2 and the other through a rod 11 with the second shock valve 8 in the input perelivom vertical pipe 6 with lock-limiter 12 impact valve 8. The impact valve 8 is installed in parallel with the valve 7, and is located in the upper part of the saddle-clamp 12 in the input vertical pipe 6. In the middle part of the rocker arm 9 pivoted rod 13 with a float 14, supported on bearings 15 mounted on the bottom of the tank 2. The impact valve 8 is made in the form of a ball. Air cap 16 is connected with the supply pipe 1, which has spring-loaded inlet valve 17. The cap 15 is connected vodopada pipe 18 with the water tank 19. Items associated with regulating an open container 2, comprise a schematic diagram with the second shock valve 8, bottom drain pipe with 3 interchangeable calibrated orifice 4, and associated with the sensor element float 14 of lever drive.

Hydraulic RAM works following the way.

When exceeding the water level in the vessel 2 of the supply pipe 1 water fills the tank 2 through the shock valves 7 and 8. The input vertical pipe 6 is opened, a stream of water, flowing through its edge, fills the tank 2. The filling of the container 2 continues until the shock valve 8 closes restrictive fixed seat 12 of the pipe 6, due to the ascent of the float 14, the lever actuator will affect the impact valve 8, which was below the fixed seat 12 in the pipe 8. By increasing the pressure in the supply pipe 1, at the same time, regulating the vessel 2 is closed drums valve 7, triggered from the close of the impact valve 8. Closing shock valves 7 and 8 causes the hammer that forces the discharge valve 17 to open. Hydraulic shock is accompanied by the occurrence of the reverse shock wave, opening the valve 17. Water through the open discharge valve 17 is supplied to the air cap 16 and then flows through the pipe 18 into the tank 19 to the consumer.

Thus, following the emptying of the air cap 16 from the water is emptying the vessel 2 through the drain pipe 3 with replaceable diaphragm 4, which leads, maintaining a supply of water in the vessel 2, automatic hydraulic RAM to work with subsequent increased and the water level in the input vertical supply pipe 6 pipe 1. After emptying an open regulatory capacity of 2, the next operation cycle repeats.

Thus, the presence in the structure of the first shock valve in the input vertical pipe and water supply regulatory capacity precludes the creation of a great effort, can improve the reliability of Tarana and to reduce dynamic loads on the shock valve. Therefore, the efficiency of the hydraulic RAM is significantly higher than that of the known shock device type. The design is relatively simple to manufacture, easy to operate, with easy access to the shock valve and drain outlet.

Due to the streamlining of the shock valve and reduce the energy of the reflected wave increases the useful work of hammer and improved performance hydraulic RAM.

1. Hydraulic RAM containing a supply pipe, a casing in the form of an air cap with the inlet valve and the shock valve, characterized in that to increase reliability and performance by reducing the dynamic loads on the shock valve, it is equipped with an open-regulating capacity with drain pipe and drum valve and the second shock valve is located in the input vertical perelivom the pipe, indicating the capacitance between themselves, with verasamy valve associated float lever actuator, placed in the tank, both the shock valve is installed in parallel to the supply pipeline.

2. Hydraulic RAM according to claim 1, characterized in that in order to reduce the metal drums valve without increasing the loss of power to the actuator, the second shock valve ball made.

3. Hydraulic RAM according to claim 1, characterized in that the drain pipe adjustment capacity replaceable calibrated aperture.



 

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