CS242658B1 - Pressure generator closure - Google Patents

Abstract

The purpose is to achieve gas tightness of the closure by precise seating of the plug in the fixed seat. The rod (4) of the plug (3) is provided with a guide element (5) under the fixed seat (1), firmly connected by means of arms (6) to the centering ring (7).

Description

(54)

Pressure generator lock

The purpose is to achieve gastightness of the closure by precisely seating the plug into the fixed seat. The stem (4) of the plug (3) is provided under the fixed seat (1) with a guide element (5) firmly connected by means of arms (6) to the centering ring (7).

242 658

242 658 (II) (Bij (51)) Int CÉ *

P 16 K 1/00

242 658

BACKGROUND OF THE INVENTION The present invention relates to a closure for a pressure generator and to providing a movable closure element for sealingly engaging a plug in a seat.

The shaft furnace closures consist of a movable plug with a rod and a fixed seat and operate essentially on the principle of valves with a metal plug seated in the metal seat. Even the use of the plug and seat, even with new sealing surfaces, does not guarantee sufficient gas-tightness without perfect seating around the perimeter. In the known closures, the movement of the plug is directed by guides placed around the outer circumference of the plug, which must have greater play with respect to mounting and operating possibilities, so that the correct seating of the plug is achieved by repeating the closing operation several times. Excessive impact of the sealing surfaces themselves causes them to wear faster. Even when using a plug hinged to the lever and closing on a circle, no better result was achieved. In this embodiment, the correct seating is again achieved by repeated repetitions, in addition, the thermal expansion of the lever at variable temperatures during assembly and during operation also adversely affects it. Another known solution by means of rod guides firmly attached to the body of the closure did not produce the desired results because the arms were torn due to varying temperatures. Closures are also known in which the guides are welded firmly by means of arms to a separate loose fit, which, while avoiding cracking of the arms, does not eliminate the complex manufacturing difficulties, deformation of the fitment and complicated assembly settling into the shutter bodies.

- 2,242,638

The aforementioned drawbacks are eliminated by the closure of the pressure generator according to the invention, consisting of a movable plug connected to the rod and a fixed seat, which consists in that the rod is provided under the fixed seat with a guide element firmly connected by means of arms to the centering ring. The centering ring fits the cell into the recess of the fixed seat and, together with it, is attached to the flange connection or to the recess formed directly in the flange connection. The centering ring can rest on the flange connection supports. The centering ring is provided with adjusting screws to ensure the alignment of the fixed seat and the movable plug is as accurate as possible.

With the solution according to the invention, even in dirty environments and at high temperatures, it is possible to achieve a perfect guiding of the movable parts of the closure and thus a precise and safe fit of the sealing surfaces, thereby increasing the gas-tightness of the closure. The centering ring enables the necessary thermal expansion of the arms and prevents their tearing or deformation of the guide. Another advantage of the closure according to the invention is that it is easier to assemble and disassemble when replacing lighter parts and increasing their service life.

Two embodiments of the closure according to the invention are shown in the accompanying drawings. Fig. 1 shows a schematic arrangement of the entire closure in a closed state with a cone abutting the seat from below, and Fig. 2 shows another embodiment of a cap with a cone abutting the seat from above.

In Fig. 1, the movable plug 6 engages the fixed seat 4 from below and closes the filling and emptying opening 4. The rod 6 fixedly connected to the movable plug 6 is guided under the fixed seat 8 by a guide 8 fixedly connected by the arms 6 to the centering ring 7, which fits into the recess 8 of the fixed seat 6 and rests on the recess 11 of the flange connection 8 of the apparatuses. 0 generator. If the filling and emptying orifice 2 of the fixed seat 6 is to be opened, the pull rod 4 drops simultaneously with the movable plug 6 in the guide 8. N _and FIG. 2, the movable plug 6 abuts the fixed seat 6 from above and with the n1 fixed rod 6 being guided under the fixed seat 8 by a double guide 6 fixedly connected by means of arms 6 to the centering ring 7.

- 3,242,658

The centering ring 8 fits into the recess 8 of the fixed seat 2 *, rests on the supports 13 of the flange connection 9 and is centered by means of the adjusting screws 12. Upon opening the filling and discharge opening 4, the movable plug 2 together with the rod 4 is lifted.

Claims (5)

OBJECT OF THE INVENTION ^ 1. A pressure generator closure comprising a movable plug fixedly connected to a rod and a fixed seat, characterized in that the rod (4) of the plug (3) is provided below the fixed seat (1) with a guide element (5) firmly connected by means of arms (6). centering ring 171, Closure according to claim 1, characterized in that the centering ring 171 fits into the recess (8) of the fixed seat (1) and, together with it, is attached to the flange connection (9) of the generator apparatus (10). Closure according to claim 1 ₍ characterized in that the centering ring 171 fits into the recess (11) of the flange connection (9)). The closure according to claim 1, characterized in that the centering ring (7) is supported on the supports (13) of the flange connection (9). 5. The closure according to claim 1, 2, 3 and 4 ₍ characterized in that the centering ring (7) is provided with adjusting screws (12) to ensure the alignment of the guide (5) with the rod (4).