SU1576716A1 - Pump with electromagnetic drive - Google Patents

Abstract

The invention relates to a pump engineering technique. The aim of the invention is to increase the efficiency of operation by ensuring the autonomy of switching the pump into operation. A pump with an electromagnetic drive contains a piston 2 located in cylinder 1, made of a ferromagnetic material, with the formation of working and additional cavities. A spring 5 is installed in the additional cavity. Outside the cylinder 1 there is a solenoid 7 connected through the switch 8 to the source 9 of constant electric current. The piston 2 is made flow through with an annular discharge valve 10. Outside cylinder 1 there is an additional solenoid 15 with a crown 16 connected to cylinder 1 by an elastic bellows 18. Solenoids 7 and 15 are connected to a constant current source 9 by means of a mechanical switch 19 attached to cylinder 1 and bark 16. 3 Il.

Description

1

The invention relates to the technique of pumping and growing.

The aim of the invention is to increase the efficiency of operation by ensuring the autonomy of switching the pump on.

FIG. 1 is a schematic diagram of an electromagnetic drive pump; in fig. 2 - part of the pump when the piston moves up in the cylinder; in fig. 3 - the same, when the piston moves down.

A pump with an electromagnetic drive contains a piston 2 located in cylinder 1, made of a ferromagnetic material, with the formation of a working 3 and an additional 4 cavities. In the additional cavity, a compression spring 5 is installed, connected at one end 6 with the piston 2. Outside the cylinder 1 there is a solenoid 7 connected via switch 8 to a source of constant electric current 9. The piston 2 is a flow-through with an annular discharge valve 10 of a non-magnetic material, the locking element 11 of which has a cross section of a trapezoidal or rectangular shape and simultaneously performs the functions of a piston sealer 2. The working cavity 3 through the discharge valve 10, the additional cavity 4 and the suction valve 2 communicated with the source of the pumped liquid (not shown) and through the bypass valve 13 and the switching element 14 - with the consumer. Outside the cylinder 1, there is an additional solenoid 15 with a bark 16 connected to the other end 17 of the compression spring 5 and connected to the cylinder 1 by means of an elastic bellows 18. Solenoids 7 and 15 are connected to an electric current source 9 by means of a mechanical switch 19 mounted on the cylinder 1 and the core 16. The radial channels 20 evenly spaced therein are made to transfer fluid to the floor of the water 2.

Pump with electromagnetic drive works as follows.

When the switch 8 is turned on, solenoids 7 and 15 create corresponding permanent magnetic fields that interact with piston 2 and core 16 and retract the latter to the middle of cylinder 1. Anchor 16 compresses elastic bellows 18 and together with piston 12 - spring 5. Displacement of piston 2 in the additional cavity 4 causes the flow of liquid or gas from the cavity 4 through the open discharge valve 10 and the channels 20 into the working cavity 3.

At the extreme upper position of the piston 2 in the cylinder 1, the force of the compressed spring 5 overcomes the force with which the measles

16 is attracted by an additional solenoid 15, and the measles 16 also moves to its upper position, the mechanical switch 19 opens. Thus, the solenoids 7 and 15 are disconnected from the electric current source 9 and the piston 2 moves under the action of the compressed spring 5 in the cylinder 1. cavity 3. The pumped liquid is being forced out

the piston 2 with the closed discharge valve 10 through the open bypass valve 13 to the consumer while simultaneously carrying out its magnetic treatment. At the extreme lower position of the piston 2, the force acting from the expanded

the spring 5 is significantly reduced and the bark 16 under the action of the elastic bellows 18 moves in the direction of the piston 2, which causes the subsequent closure of the mechanical switch 19 and the re-connection

Q solenoids 7 and 15 to the source 9 of the electric current. Next, the pump cycle is repeated.

The operation of the pump may be adjusted, for example, by changing the size of the gap in the mechanical switch 19.

5 When the discharge pressure reaches a predetermined value at the pump outlet, the mechanical switch 19 is opened and the piston 2 stops, which is then automatically put into operation with a corresponding decrease in pressure at the pump outlet.

Claims (1)

Invention Formula Electromagnetic pump containing located in the cylinder 5 piston with the formation of working and additional cavities, in the latter of which there is a compression spring connected at one end to the piston, and a solenoid located outside the cylinder and connected to the DC source, while the working cavity communicates with the source of the pumped liquid and the consumer characterized in that, in order to increase work efficiency by ensuring the autonomy of turning on the pump in 5, the piston is flow-through with an annular discharge valve of a non-magnetic material, the working cavity communicates with the source of the pumped liquid through the additional cavity, and the cylinder is made with an additional solenoid and cowl connected to the other end of the compression spring and connected to the cylinder by means of a bellows moreover, the solenoids are connected to the source of electric current by means of a mechanical switch mounted on the cylinder and the cortex. H H 41 ui Ria.2 Fi.g.3