SU63166A1 - Pneumatic deep well pump - Google Patents

Description

The subject of the present invention is a pneumatic submersible pump, in which the number of cyclo B1 is adjusted automatically depending on the debit of the well. Such pumps are already known, which are controlled by Ldaum with twin-operated spools, with the first Zo-displacer being displaced. produced due to compression of air in the nozzle, immersed in BI fluid, which allows automatically; cut off the working gas.

According to the invention, the difference in co-construction is that for the supply of additional air to the pressure pipe of the pipeline, which serves to aerate the liquid, which is pumped by displacing it with compressed air from the gravity-filled chamber, a feeding device is used. This device consists of a branch with a distribution or differential spool, which is included in it, one of the end chambers of which is reported as a spur pipe-line, and the other with an air inlet duct M.

In FIG. I depicts a longitudinal section of the pump; FIG. 2 is a diagram of the pump slide mechanism; and FIG. 3 - a general view of the installation.

Nasoo consists (see Fig. 1) of a transfer sleeve 3, screwed onto the body 6 of the lower pipe 21. Last HaiBiepHyTa with one end on the lower end of the body b, and the other end on the saddle 26, which after the pump is lowered, the VL coes 25 s saddle 24 and valve 23 inserted into it.

The saddle 24 is clamped by the cage 22. connected to the Garbut stem 20, which with its upper end is inserted into the coupling 18. The coupling 18 is screwed into the housing 14 of the discharge valve consisting of the saddle 17, the ball valve 16 and the cage 15. The housing 14 with its upper condom is screwed onto the translational-muff 13, B1 which is screwed in pipe 12 and with which the whole system is screwed to the casing 7 of the spool mechanism. In the housing 7, on one and the other side, the eoshotniki 5 and 10 are inserted, with the help of which they are manufactured, with

on the one hand, the cut-off of the working gas (distribution) and, on the other hand, the self-regulation of quantities a cycles. For this purpose, a series of canals was made in enclosures 6 and 7 (see Fig. I and the diagram of the slide mechanism). Both spools 10 and 5 are made differential. On the spool 10 always presses the pressure, 8.

The descent of the pump into the skin is produced as follows. At first, the body 6 and the pipes 21 and 19 and the cone seat 26 are connected to one row of pipes. Everything loses below the level of the liquid so that the cornus 6 is no more immersed in the liquid than but the clutch 3. On this second row of MeHbDjero pipes, the inner parts consisting of a cone 25 with cond. 1H1 are equipped with a sump, discharge valve: , pipe 12, is screwed into the Cornus 7 and the Cornus 7 with the spools inserted into it. Cornus 7 is planted with the lower cone on the saddle of body 6, and cone 25 on the saddle 26.

The lift of the plant is reversed.

As mentioned above, the BiHyTpeH-HHe parts of the pump are lowered separately, due to which it is possible to flush the replacement chamber, change valves and inspect the spool mechanism without a chamber chamber, i.e. without lifting the second row of pipes 1.

The operation of the pump takes place in a sequential order.

After lowering the pump; B: well and all pipelines on the surface in the distribution booth, opening aiOT regulator0 valve and pass the working gas through line 27 (fitting 3) to: the annular space between pipes 29 and 30 and 1 and 2 (Fig. 1): .

Fresh gas at my pressure fills the annular space, pressure & KOtropoM remains unchanged during the entire pump operation, i.e. does not occur here

periodic injection and discharge B: the atmosphere of the working gas, as is currently done in replacement pumps.

From the annular space, the working gas through channel B nostunat to Cornus 7 and then approaches the spools (Fig. 1 and 2), produces pressure on the upper spool 5 from the lower side but canal D and on the lower spool 10 from above The E-ends of the spools are always located under the pressure of a fresh working gas and, therefore, the spools are held at the time of the replacement of the oil chamber B with oil: the position shown in FIG. 1 and 2.

At the indicated position (Fig. 1 and 2), the replacement chamber with oil from the well occurs. The oil passes through the suction valve 23, enters the chamber formed by the pipe 21, and can pass through the injection valve if the pressure on it from the side of the remaining fluid is less than the pressure of the well coming from the well. Air or gas in the chamber (is displaced by fluid through channel L to recess of spool 10, then through channel M to atmosphere.

As soon as the end of the tube 19 is immersed in the liquid, it will begin to compress the gas under the action of a liquid column in the chamber that is lifting. When the chamber is filled with oil and the gas being squeezed in tube 19, BI will move the valve 10 to the upper position, channels B and I through the recess in the spool connect the channel K and L, and fresh working gas will flow into Kamyru replacing, pressing out the oil from there through the discharge valve 16, tube 12 and filling the channel H (Fig. 1 and 2), but with which the liquid will start to flow into the internal column but channel A (Fig. 1), producing pressure on the upper end distributor valve ns1 th spool 5. Under pressure of fresh working gas the spool of 10 psdni.mets will take even higher

its extreme position, at which the cavals M and M will be closed, and consequently, the cavity above the spool, where the spring 8 is located, and the replacement chamber will be disconnected from the atmosphere.

Fresh working gas, continuing to squeeze the liquid out of the replacement chamber into the internal lifting column, will finally create such a liquid column, which in the state will put the valve 5 in the lower position. At this time, the C and T kakaps that form the Branch connect through the bore BI of the spool and fresh working gas will flow through channel P into the lifting column, lift and aerate the oil, and, on the other hand, will flow through the iBi channel I zolotniko / m 10. Thus, the same pressure is created on equal areas, as fresh working gas ® time presses on the end of the brush - 9 and pressure is added to this pressure on the difference of the square of the hammer and brush, which gives the total amount of space the area of the lower end of the spool 10. Nakona If the pressure is balanced by the action of the spring 8, the syringe will move to the lower extreme position, intersecting the channels so that the new working pelvis is disconnected from the replacement chamber and, conversely, the replacement chamber is connected to the atmosphere through channels L, K and M. As soon as the pressure in the chamber drops, it will: fill with oil.

The spool 5 in the lower position will be held until the oil is ejected from the column B into the ladder, after which the pressure on the upper end immediately drops, and under the pressure of a fresh worker acting on the lower end of the spool, the latter will rise to the upper edge. They shut off the channels so that the supply of fresh working gas B to the lifting column is stopped. After filling the chamber with oil, the cycle is repeated.

The areas of the upper lower ends, of the spool 5 are selected so that there always exists a pressure differential required for the flow of fresh working gas into the lifting coloine, i.e., the area of the upper end is always greater than the lower.

Subject invention

A pneumatic submersible pump, characterized in that for supplying an additional amount of air to the pressure pipeline, ® the purpose of aerating the fluid injected by its usual displacement with compressed air from the self-flowing chamber, a feeding device consisting of a branch C - T - P ( Fig. 2) with a differential differential valve 5 included in it, one of the end chambers of which is connected to the discharge pipe, and the other to the inlet air duct.