SU476400A1 - Solenoid Valve with Electromagnetic Latch - Google Patents

Description

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The invention relates to pipe fittings and is intended for use as an actuator in systems for the automation of installations in various industries.

A solenoid valve with an electromagnetic latch is known, the measles of an electromagnetic actuator of which is connected by a rod passing through a hole in the foot, with an electromagnetic lock, Christmas trees.

However, the design of electromagnetic latches in such a clap is complex.

In order to eliminate this drawback and improve the reliability of the valve in it, a polarized electromagnet is installed at the end of the stem, flat pole tips of which form a U-shaped structure with a permanent magnet, and a coil with a winding is installed on one of the tips.

In the drawing, a diagram of the proposed clan. It contains a housing 1, a bolt 2, a return spring 3, a handle 4 of a manual control, an electromagnetic actuator, consisting of a core 5 with STOCK 6, PASSING NM

through a stop 7 and a coil 8, an electrically controlled control slide including a permanent magnet 9, pole pieces 10, one of which has a coil

11, measles 12, fixed at the end of the stem 6, on the auxiliary contact system 13. The valve operates as follows. When you click on the button "On measles 5

the electromagnet together with the rod 6 and the bark 12 latches moves to the foot 7, raise the bolt 2 and open the valve. In the upper fold, the measles 12 latch rests on the lugs 10 of the magnetic latch and closes

the magnetic target of the magnetic rod created by the permanent magnet 9, the measles 12 is held in an attracted position due to the attractive force that is generated thereby. When to the foot measles 5 closes coitacts

Ki - Kz and opens the contacts K4 - Ke- After the “On” button and Ke contacts are opened, the circuit of the traction electromagnet will break, but the valve will remain open, since the measles 12, the rod 6, the bolt 2 will be removed by the magnetic latch.

The valve is closed by pressing the “Vzhl. In the open position, the KI contact is closed and when the On button is closed, the coil 11 of the latch circuit closes, through

DC current passes through it, rectified by the VM bridges and creates a magnetic flux directed towards and equal to it in magnitude. The electromagnet anchor 5 of the node by the action of the spring 3 moves down and the valve closes.

Subject invention

A solenoid valve with an electromagnetic latch, the measles of an electromagnetic actuator of which is connected by a rod passing through a hole in the foot, with an electromagnetic lock lock, elKi, about tl and h and i

that, in order to maximize the design and reduce reliability, a polarized electromagnet is installed at the end of the stem, the flat pole tips of which form a U-shaped structure with a permanent magnet, and a coil with a winding is installed on one of the tips.

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