RU100568U1 - HIGH PRESSURE SUBMERSIBLE ELECTROMAGNETIC PUMP - Google Patents

Abstract

 A high-pressure submersible electromagnetic pump containing a cylindrical housing in which a working chamber with a diaphragm in the lower part and discharge and suction valves in the upper part, a telescopic piston in contact with the diaphragm and at least two electromagnetic field windings, the upper of which the drive, and the lower one is returnable, the cores of the windings are made in the form of plungers equipped with rods, moreover, the adjacent plungers have a common rod, and the upper one is connected to a telescope cal piston, wherein the windings are located in a cavity filled with insulating oil.

Description

The utility model relates to hydraulic volume displacement machines, namely, submersible pumps driven by electric motors with a solenoid and can be used in the oil industry.

Known submersible electromagnetic pump containing a cylindrical body, which houses a working chamber with discharge and suction valves, a piston and electromagnetic field windings (see AS SU 1498942, class F04B 17/04, publ. 07.08.1989). The disadvantages of the known device is the lack of power and fragility due to the contact of the working bodies with an aggressive environment.

The objective of the utility model is to eliminate these drawbacks. The technical result is to increase work efficiency and increase the life of the pump. The problem is solved, and the technical result is achieved by the fact that the high-pressure submersible electromagnetic pump comprises a cylindrical body in which a working chamber with a diaphragm in the lower part and discharge and suction valves in the upper part, a telescopic piston in contact with the diaphragm and extreme, two electromagnetic field windings, the upper of which is drive and the lower is return, the cores of the windings are made in the form of plungers equipped with rods, than the adjacent plungers have a common rod, while the upper one is connected to a telescopic piston, while the windings are located in a cavity filled with transformer oil.

Figure 1 shows a diagram of the proposed pump;

figure 2 - telescopic piston in assembled form;

figure 3 - telescopic piston disassembled.

The high-pressure submersible electromagnetic pump contains a cylindrical housing 1, traction electromagnets 2 and 2 'with field windings 3, plunger cores 4, a telescopic piston 5, a rod 6, a working fluid chamber 7 with a suction valve 8 and a discharge 9. In the pump housing 1 transformer oil 10 is poured, separated from the reservoir fluid by the diaphragm 11. To return the system to its original position after the working stroke, use a return electromagnet 12 with its own excitation winding.

The pump, in fact, consists of the head diaphragm-piston part (positions 5, 7-9) and the drive part, which consists of series-connected electromagnets 2, 2 'and 12 connected by a common rod 6. The fluid pressure in both parts is balanced.

The pump operates as follows.

When power is applied in the form of a current pulse having the form of a decreasing exponent at the beginning of the front, the electromagnets 2 and 2 'simultaneously begin to retract the plunger cores 4, which are rigidly connected to the rod 6. The electromagnets have the shape of a cylinder for efficient use of the cylindrical pump casing.

In turn, the rod 6 is rigidly connected with the telescopic piston 5. The load curve of the telescopic piston 5 has an approximately parabolic behavior. The interaction of the rod 6 with the electromagnets 2 and 2 'is exponential, which together gives a uniform traction characteristic of the rod 6, an additional adjustment to which the form of the supply voltage. As a result of the analysis of the behavior graphs of the telescopic piston 5 and electromagnets 2 and 2 ', corrected by the shape of the supply current, it was found that the pressure of the piston on the diaphragm 11 is as uniform as possible, i.e. the proposed arrangement minimizes the breaking load on the diaphragm and makes it possible to use the proposed pump at great depths.

The telescopic piston 5, which is set in motion, bends the diaphragm 11 and, when the valve 8 is closed, pushes the liquid through the valve 9 into the discharge pipe. Returning to the initial state is carried out by supplying current to the exciting windings of the electromagnet 12 operating in the opposite direction, while the valve 9 closes and opens the valve 8, filling the working chamber 7 above the diaphragm 11 with a new portion of the reservoir fluid. The supply voltage and the operation cycle are generated by the controller of the control station. Cycling of the pump is assumed to be from 1 to 10 cycles per second.

The proposed pump compares favorably with its known counterparts in its durability, ease of layout and maintenance. Its main distinguishing feature is the waterproofing of the actuating elements (including electromagnets) from the pumped liquid, which increases its wear resistance several times.

Claims (1)

A high-pressure submersible electromagnetic pump containing a cylindrical housing in which a working chamber with a diaphragm in the lower part and discharge and suction valves in the upper part, a telescopic piston in contact with the diaphragm and at least two electromagnetic field windings, the upper of which the drive, and the lower one is returnable, the cores of the windings are made in the form of plungers equipped with rods, moreover, the adjacent plungers have a common rod, and the upper one is connected to a telescope cal piston, wherein the windings are located in a cavity filled with insulating oil.