SU1733692A1 - Well pump plant - Google Patents

Abstract

Use: pumping water from mines, oil from wells, artesian water from wells, and also raising deep layers of sea water to the surface of the sea. The invention: on the surface of the earth there is a connecting rod-crank hydropulsator connected to a V-shaped pipeline (TP). TP is installed in the well and is connected to its lower part through the suction valve of one of the branches of the TP. The hydro pulsator is equipped with pistons located in each of the branches of the TP, made with bypass channels. The branches of the TP are equipped with saddles that interact with the shut-off element of the impact valve. The second branch TP is additionally equipped with a suction valve. In the bypass channels of the pistons are installed suction and pressure valves. 1 z.p, f-ly, 1 ill.

Description

The invention relates to pumping engineering, and can be used in folk farms for lifting fluids from deep wells, for example when pumping water from mines, oil from wells, and artesian water from wells, as well as for lifting deep layers of sea water to the surface of the sea.

Deep-well pumping installations are known, consisting of a pressure pipe installed in the well parallel to the drive pipe and communicated with it in the lower part, the pressure pipe being fitted with and above the spring-loaded normally open baffle valve and without a spring. They connect the flowline and the well. Hydraulic pump unit and

downhole pumping unit equipped with a hydropulsator connected by pipelines.

The disadvantage of the described devices is that the injection process is performed once in two strokes of the pulsator piston.

The aim of the invention is to increase the performance of the pump by improving its design.

The drawing shows the proposed depth pump installation.

The installation includes a crank drive crank mechanism (crankshaft) 1, pulsator pistons with bypass channels 2-15, piston pressure valves — direct bypass valves 3, 5, piston suction valves — non-return bypass valves 4, 6, pipelines with

SA M O N

seats for a percussion valve AND 7, 8, water inlet part 9 of the well, valve block 10, impact valve 11 with shut-off elements, suction valves of installation 12, 13, consumer 14.

This goal is achieved by the fact that during the operation of the pumping unit in pipelines 7 and 8 a reciprocating movement of the fluid is created by means of reciprocating pistons (2 and 15) of a connecting rod crank mechanism. The movement of fluid in the valve block will, for example, be to the right, and its effect on the shock valves 11 with shut-off elements will also be from right to left along the arc around the valve fixing point.

If the fluid moves down in the pipeline 7 under the influence of the piston 2, then in the pipeline 8 it moves upward together with the piston 15.

In this case, the fluid in the pipes 7 and 8 will move under the action of the piston 2. The shock valve with shut-off elements 11 suspended on the axis in the valve block 10, due to the movement of the liquid, will turn on the axis and block the pipelines with the seat 8 in the area of the suction valve 13. In As a result, the liquid in the pipeline 7 stops, and in the pipeline 8 continues its upward movement due to the inertia behind the piston 15. In the zone of the suction valve 13 of the valve block, a vacuum is created in the pipeline 8. The valve 13 will open into the inside of the pipeline 8 and a portion of the liquid from the water intake part of the well 9 will enter the vacuum zone. The suction valve 12 is then closed due to the overpressure in the pipeline 7.

When the pistons 15 and 2 move backward, when the liquid moves down in the pipeline 8 under the action of the piston 15, and in the pipeline 7 upwards together with the piston 2, the shock valve 11, moving from the zone of the suction valve 13 to the valve 12, will block in its area pipelines with seats 8 and 7. As a result, the fluid in pipe 7 continues its movement upwards by inertia behind the piston 2.

In the area of the suction valve 12, in the pipeline, a vacuum is created. The suction valve 12 opens into the interior of the pipeline 7, passing a portion of the liquid to the vacuum zone. The suction valve 13 is closed due to the overpressure in the pipeline 8.

Due to the fact that the oscillations of the fluid in the pipes 7 and 8, provoked by the movement of the pistons 2 and 15, will be damped, then not income to the top dead center, a vacuum will be created under the pistons 2 or 15. Then the bypass valve 4 and 6 will open and some of the fluid will flow from

the space above the piston 2 or 5 into the space under the pistons, thus eliminating the vacuum. Due to the fact that the pulsator pistons are used to provide fluid oscillations in the pipelines and to maintain a set value of the oscillation amplitude, the pistons can be provided with holes in the bottom without valves.

When changing the direction of movement of the piston 2 in the pipeline 8 at the same time

5 changes the direction of movement and the shock valve 11 from the saddle of the pipeline 8 to the saddle of the pipeline 7.

During the movement of the shock valve under the action of the moving fluid in the pipes 7 and 8 from one seat to the other, the suction valves 12 and 13 are closed due to the overpressure of the liquid columns in the pipes 7 and 8.

After passing the mark of a path equal to about half the amplitude of the oscillation of the fluid (for example, the piston 2 moves down) when the impact valve is in its seat in the zone of the suction valve 13 of the pipeline 8, there is an excess of fluid with a volume equal to the product of the cross-sectional area and the path of 0.5 the oscillations driven by piston 2 are forced into the space above piston 2 through the relief valve 3. If piston 15

5 moves downward, then the transfer of excess fluid volume to the over piston space takes place via the bypass valve 5.

When driving, for example, the piston 15;

0 upwards, when the shock valve 11 continues to be in the saddle of the pipeline 8, thereby blocking the communication of the pipelines 7 and 8, for a piston stroke value equal to half the amplitude of oscillation,

5, the fluid transferred through the relief valve 5 into the space above the piston 15 flows into the tray and is directed to the consumer 14.

Using inertia oscillations

0 liquid in two parallel pipelines significantly reduces the power to drive a deep-well pumping unit, the location of the connecting rod-piston drive group on the ground surface

5 makes it possible to carry out maintenance and repair of this group in a timely and easily accessible manner; the use of two on-porn-drive pipelines with two pistons increases the performance of the installation by a factor of two.

Claims (2)

Claim 1. In-depth pumping unit comprising a crank-crank hydropulsator located on the surface of the earth, connected to a V-pipe installed in a well with the possibility of connecting it to the bottom through a suction valve of one of the branches of the V-pipe and a shock valve with shut-off element, characterized in that, in order to increase productivity through the use of both branches of the V-shaped pipeline as a pressure, the connecting rod-crank 0 five the hydropulsator is equipped with pistons placed in each of the branches of the V-shaped pipeline, which are made with bypass channels, and the branches of the V-shaped pipeline are equipped with saddles that can interact with the locking element of the impact valve, and the second branch of the V-shaped pipeline is additionally equipped with a suction valve . 2. Installation according to claim 1, characterized in that suction and discharge valves are installed in the bypass channels of each of the pistons. Editor M.Vasilyeva Tehred M.Morgental Order 1651 Circulation Subscription VNIIPI State Committee for Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, 4/5 Raushsk nab. /// /// ////// L /// YU Corrector O, Tsiple