SU77196A1 - Deep pump - Google Patents

Description

The invention relates to a deep pump driven by a water-pumping machine, with a flow of purified liquid into the gap between the piston and: the cylinder, for seizing, ity from the sand and with the IromyVK pipes with the cylinders disconnected.

In the proposed: pump for shutting off the cylinders during the flushing of the pipes, a spool mounted on the end of the central tube was used to serve the flow of the working medium in a water-column machine.

The drawing shows a longitudinal section of the pump.

A deep pump consists of three main parts: distributor A, engine B and the pump B itself.

The distributor A includes a spool bushing /, a spool 2, buffer springs 3 and a plate spring 4. Engine B consists of a DOUBLE action piston 5 and a cylinder 6. Pump B includes rod 7, plunger 8 with cylindrical bushing 9, valves / O, 7 /, 12 to 13 and hollow rod 14.

From the day surface a special working oil is fed through the central pipe / 5, which passes through the open valve 16 and then through a row (of the openings 17, gets into

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The Code Release J2, 19W

spool. The spool in the drawing is shown in a position where the working oil from the spool cavity is fed through the opening 18 into the annular gap between the pipes 19 and 23 and further through the openings 20 into the upper cavity of the engine 6. Under the action of working oil, the piston 5 of the engine will move downwards and, through the rod 7, will begin to mix; down the pump plunger. 8. Lowering, the plunger 8 with its lower part will displace the oil coming in from the advance from the well through the valve 13 and the annular space 21 to the day surface. When this. Valve 12 is closed. At the same time, a vacuum is created in the upper part of the plunger 8, as a result of which oil flows from the well through the hollow rod 14 and the valve P; at eto1M "lapan 10 is closed. When the engine piston 5 moves down, the refined working oil from the lower cavity of cylinder 6 through openings 22, thruster 23 and spool cover notch 24 is forced out through valve 25 into the annular space and along with oil extracted from the well enters the surface. The movement of the piston 5 engine down will be continued

press until the spool bushing 1 ' e until the lower spring 5 and squeezes it to such a state that the spring 3 overcomes the action of the leaf spring 4 of the spool. At this time, the roller spring 4 will come out of the recess 39 and under the action of the lower spring 3 will instantly move to the upper recess} of the spool 26. The locking bolt 27 serves to limit the movement of the slide bush. With this position of the spool bushing, the opening 18 will be aligned with the opening 28 and the working oil will flow through the pipe 23 and through the opening 22 into the lower cavity of the engine cylinder 6, as a result of which the engine piston 5 will start once. At the same time, the opening 29 communicates with the opening 31 through the recess 30 of the slide valve.

Spent clean oil from the upper cavity of the cylinder 6 through the holes 20, the annular space between the pipes 19 and 23 and the holes 29 and 31 in the recess 30 is displaced through the valve 25 into the annular space and is carried along with the produced oil to the surface.

When the piston 5 of the engine moves upward, the oil that has entered the upper part of the pump is forced out through the valve 10 into the annular space and onto the surface. When this valve 11 is closed. At this time, a vacuum will occur in the lower part of the pump under the plunger and the oil from the well pump enters the pump through valve 12. The engine piston 5 will move upward until the valve with the upper spring 3 reaches 1 lead 32 and compresses the spring such a condition in which the spring roller 4 exits the recess 26. Then the spool under the action of the upper spring 3 will instantly move to the lower recess 39 of the spool and the action of the engine, as well as the pump, will be as previously described.

For pre-og the hydraulic shock at the moment of

the movement of the spool from one position to another on the spool bush / is small; hole 33, which at this point will be aligned with the slit 34.

For flushing the plunger 8 with working pure oil, a valve 35 serves, through which working oil enters the channel 36 and further along the slot 37 between the sleeve and the housing into the annular recess 38.

The valve 16 is designed to prevent the distributor and engine cavities from clogging up when the pump is lowered into the well, and also to: a) rinse the dirt accumulated in the central pipes when the pump is lowered, for which the first time the pump is lowered does not bring it to the bottom the cone 40 pumps the working oil through the openings 41 and 42, which, when the valve 16 is closed (i.e., with the spool 43 raised), coincide; b) flushing the lower cone 40 at the same time to keep working with pure oil located in the annular space; c) when extracting the rodless pump to the day surface, lower the oil column from the central pipes to facilitate lifting.

Subject invention

Claims (2)

1. A deep pump driven by a water-column machine with a flow of purified liquid into the gap between the piston and cylinder O1M for protection against sand and for flushing pipes with the cylinders disconnected, this is also because in the period of washing the pipes it is used. A lottery 43 mounted on the lower end of the central tube 15, which serves to supply the working medium to the water-jetting machine. 2. In the pump of claim 1, a valve 16 fixed in the pump housing is used to close the opening 17 when the spool 43 for flushing the pipes is moved upward until the holes 41 and 42 match. t5