SU1495577A1 - Swing valve - Google Patents

Abstract

The invention relates to equipment for dust preparation systems, can be used in thermal power plants, and allows improving operational reliability when working with materials prone to sticking. The valve suspension system is provided with latches 9 and 10, and the inlet is made of two parts connected by an elastic element. In the "Closed" position, the material enters the valve. When the weight of the material column exceeds the force of the spring 11 of the clamp 9, its latch 13 exits the groove 15 and the valve from the "Closed" position abruptly changes to the "Open" position. After the material has been poured into the housing, the latch 14 of the retainer 10 will come out of its groove 16, and the valve will suddenly turn to the "Closed" position under the action of the counterweight. During abrupt transitions from one position of the valve to another, the inlet pipe is lost, at which material adhering to it falls off. 2 Il.

Description

3149

The invention relates to equipment for dust preparation systems and can be used in thermal power plants.

The purpose of the invention is povopenie operational reliability when working with materials prone to sticking.

Figure 1 shows a flasher, a longitudinal section; figure 2 - section aa in figure 1.

The blinker valve contains a; orpus 1 and an inlet pipe wound inside it, made of the upper 2 and lower 3 parts interconnected by an elastic ring element 4, and a valve 5 equipped with a suspension system. The suspension system of the valve 5 has an inlet shaft 7 with a counterweight 8 fixed on the axis 6 and is equipped with two clamps 9 and 10. The latter are equipped with spring-loaded springs 11 and 12, respectively, with latches 13 and 14, in the form of a ball, with separate grooves 15 and 16 and adjusting screws 17 and 18. The valve 5 in the Closed position approaches the lower 3 inlet, and in the Open position, it is located at a distance from this nozzle. The latch 13 of the retainer 9 coincides with its groove 15 in the closed position, and the latch 14 of the retainer 10 in the open position. Axis 6 out

Nene of two axes 19 and 20, located coaxially rotatable relative to each other and supporting sleeves 21. Recess 15 of retainer 9 is located on half of axis 19, and recess 16 of retainer 10 - on half of axis 20. The suspension system is equipped with a device for adjusting the position of valve 5, made in the form of slats 22 fixed on semi-axes x 19 and 20. and having arc slots 23 and fnx tamping bolts 24.

Valve flasher works as follows.

The material moving along the inlet pipe accumulates on the surface of the valve 5, filling the lower part of Z. The weight of the accumulated material column acts directly on the surface of the valve 5 and creates a moment M, about the axis .6. The material poured onto the walls of the stand along with the intrinsic mass of the lower part 3 of the inlet nozzle exerts

d

d 0 5 0

five

0 s

the pressure on the valve 5 due to the presence of the elastic element 4 creates the moment M. These two moments (M and M) are counteracted by the moment of the counterweight 8 and the moment of resistance of the latch 13, which is located in the groove 15 (M and M). The axis 19 as the volume of the inlet pipe is filled with the material is rotated and the latch 13 comes out of the groove 15, the moment of resistance M disappears. At the same time, valve 5 opens abruptly, shifting down by the amount of its stroke, and is set to the Open position. The accumulated material begins to pass into the casing 1. In the open position, the valve 5 is fixed by the latch 14, which has fallen into the groove 16. At the same time, the moment reappears —M.M. and pulls the latch 14 out of the groove 6. At the same time, the valve 5 quickly with a blow closes the lower end of the part 3.

Screws 17 and 18 are used to adjust the value of the limiting moment of opening and closing of the valve. To adjust the start of opening of valve 5 and the magnitude of its stroke, release the fixing bolt 24, rotate the strips 22, and with them half axes 19 and 20 and bolt 24 is tightened again.

Claims (1)

Invention Formula A flashing light valve comprising a body and an inlet pipe inserted inside it and a valve equipped with a suspension system having a counterweight and adjacent to the lower end of the inlet pipe in the Closed position, characterized in that in order to increase operational safety; When working with materials prone to sticking, the inlet is made of two parts interconnected by an elastic ring. element, and the valve suspension system is additionally equipped with two clamps, each of which has a spring-loaded latch and a counter 514955776 the groove, the npuxieM latch of one latch Closed, and the latch of the other latch - coincides with its groove in the position of the torus - in the Open position. Phie. one