SU10717A1 - Automatic device for switching on and off the action of the feeding devices of steam boilers - Google Patents

Description

In the proposed automatic device for turning on and off the action of the feeding devices of steam boilers, an electrical circuit is used, one contact of which is connected to the lower tap of the water glass and the other to the rod insulated in the head of the upper glass tap. The rod is designed to close and open through water in a glass of current in said circuit, acting through an electromagnet on the spring contact of another circuit. The latter is equipped with electromagite, designed to act on a nutrient pump or on valves in a nutrient line.

In FIG. 1 shows a diagram of the electric circuits of the device; FIG. 2-pin rod inserted in the go, dexterous top tap water glass; FIG. 3-vertical section of gauge glass with a rod.

Contact electrical tset B, C, D, A is attached to the lower valve B gauge glass, and contact A is attached to the rod 2 with the head 1, inserted with an electrically insulating gasket 3 into the head of the upper valve gauge glass. The electromagnet B of the circuit B, C, D, A acts on the spring contact D of the other circuit with the battery E and the electromagnet K turning the electromotor switch on or off, which leads. in action the nutritious pump. In the case of steam pumps, the electromagnet K can act on valves in the pressure feed line.

When the water level in the boiler increases, and consequently in the water-meter glass, the current in the circuit B, C, D, A closes through the water in the glass and rod 2, and solenoid B rejects the spring contact D opening the current in the circuit E, K As a result, the electromagnet K ceases to act on the electric pump (or on the gate valves of the feed line) and under the action of the springs that turn off the electric breaker of the pump or close the gate valves on the feed line, the water supply stops. When the water level in the glass decreases so much that the end of the rod 2 is exposed, the current in circuit B, C, D, A opens, and in circuit D, E K-closes, and the pump starts to operate (or the valves on the feed line open) .

The subject of the patent.

An automatic device for switching on and off the action of the feeding devices of steam boilers, characterized by the use of an electric circuit B, C, D, A (Fig. 1), contact B, which is connected to the lower valve B of the gauge glass (Fig. 3), and contact L- attached to the rod 2 (Fig. 2) with the head 1 inserted with the electrically insulating gasket 3 into the head of the upper tap of the gauge glass, which rod, with a corresponding rise and lowering of the water level in the glass, is intended to close and open through

water in the glass current in the designated circuit, with the aim of the action of the electromagnet B to cause a spring contact closure of another circuit with the battery E and the electromagnet K, designed to start and stop, the action of springs, electric feed pumps or to pull and pull the valve lines x

Figz

FIG.