SU1528991A1 - Controlled valve - Google Patents

Abstract

This invention relates to a valve industry. The aim of the invention is to increase the reliability of the control valve. When the working fluid is supplied through the nozzle 6, its pressure acts on the membrane 10, which moves and opens the passage opening of the seat 2, moving the valve member that interacts with the seat. Placed between the two parts of the closure body, the profiled elastic element 26 in this case acts on the protruding parts of the rod 25, which is installed perpendicular to the axis in the part of the closure body adjacent to the saddle 2, and pushes this part up to the abutment of the end face of the ring 23 in the projections 22 at the end of the annular flanging 21 and directed to its axis. When the control pressure is applied through the fitting 9, the membrane 10 moves downwards and the locking member 3 sits on the saddle 2. At this, the protruding parts of the rod 25, overcoming the compressive force of the profiled elastic element 26, move in the screw grooves 24 made in the annular flange 21, the locking actuator rotational organ 3, which abrades the saddle and squeezes impurities from the surface of the saddle, ensuring intimate contact with the saddle. 1 il.

Description

(21) 4323331 / 40-29

(22) 11/02/87

(46) 12/15/89. Bul No. 46

(72) V. Ya. Gaft, I. A. Furmanov,

J. B. Gaft and Y.L. Marmer

(53) 621.646 (088.8)

(56) AaiopcKoe certificate of the USSR No. 765585, cl. F 16 K 29/00, 1976.

US patent No. 3527244, cl. 137-244, 1970.

(54) CONTROLLED VALVE

(57) The invention relates to the armature structure. The aim of the invention is to ensure the reliability of operation of the controlled valve. When the working fluid is supplied through the nozzle 6, its pressure acts on the membrane 10, which moves and opens the passage opening of the seat 2, displacing the seal that interacts with the seat. Placed between the two parts of the closure body, the profiled elastic element 26 in this case acts on the protruding parts of the rod 25, which is installed perpendicular to the axis in the part of the closure body adjacent to the saddle 2, and pushes this part up to the abutment of the end face of the ring 23 in the projections 22 at the end of the annular flanging 21 and directed to its axis. When the control pressure is applied through the clamp 9, the membrane 10 is moved downward and the locking member 3 sits on the saddle 2. At the same time, the protruding parts of the rod 25, overcoming the compressive force of the profiled elastic element 26, move in screws. in the annular flanging 21, the actuator of the locking member 3 is rotated, which is threaded to the saddle and squeezes the mixture from the surface of the saddle, ensuring close contact with the saddle. 1 il.

cl

22

P

ate to

CX)

with so

20

2}

24

From (), shaving refers to reinforcement and is intended to control the flow of working medium containing impurities.

The invention is to increase the reliability of the controllable valve by increasing the time for cleaning the mechanism of the seat.1a when landing the valve.

The drawing shows a general view of a controllable valve.

The valve includes a housing I, in the cavity which is open) interacting with sed. IOM 2 valve body 3 connected to the actuator. A cap nut 4 is screwed onto the pilot valve to connect the valve to the pipeline 5. The housing 1 has an inlet pipe 6 through which the working medium containing impurities is supplied. C. pom (mtsn) bots 7 housing 1 perekty yp kryp1koy 8, who is equipped with a nipple 9, designed for the supply of control pressure jp | its pressure shade of compressed gas. Between K (1 and the cover 8. The membrane K is clamped), loaded with a spring 1 and a valve with a drive of a locking member 3.

A contact unit 12 of the machine 12 is connected to the membrane 10, equipped with insulating gaskets 13 and 14. The cover 8 is embedded with an insulating sleeve 15, on which LED 1b and KoinaKT 17 are placed, and the total contact 18 is fixed directly to the cover 8 . (dan-diode 16 is connected in series with contact 17, and with the help of flexible conductor 19 with contact | Lanka 12.

The locking body 3 is composed of two parts. In the part 20 connected to the drive, which is the membrane 10, is made ko, n2eva otb ()) item 21 with two axially directed to the axis of the boom 22 on its B | () part with opposite, and) saddle 2 side . Shepco, 1pr1) on juice 23 s.avu.m corresponding to 22 annular outfits of 21 grooves.m. Through screw holes 24, and in the part of the locking organ that adjoins the saddle, 11e | 1peedik is fixed to its axis of the set, 1ep rod 25. protruding ends of which are placed in screw grooves.h 24 .

K, 1apan is supplied with profiles) with an ovated):, 1, item 26, KOTOpbiii is installed between the locking parts of the organ and the operator on BbicTyiiaioHuie the ends of the rod 25.

The controlled valve operates as follows.

At the moment when there is no supply of control pressure in the superbranche.

five

0

five

0

five

0

five

0

When a medium containing impurities is supplied through the nozzle 6 into the submembrane cavity, the membrane 10 bends, compressing the spring I 1 until the contact pin stops, the tanks 12 into the protrusion of the cover 8. The locking body position indication device closes and the control devices predict that that the valve is open. The valve part 20 is moved together with the membrane 10, and the profiled elastic element 26 pushes the locking member 3 into its lower 10 ° position. At the same time, the valve is freely washed by the working medium and does not prevent its passage towards the pipeline 5.

When the control pressure is applied to the supra-membrane cavity, the membrane 10 bends downward, the locking member 3 is centered in the saddle 2, and then, with the further course of the membrane 10, is moved from its lower position to the stop by an annular skirt 23 into the end part of the locking organ while overcoming the resistance of the elastic element 26.

The rod 25 slides in the screw grooves 24, turning the locking body 3 around the axis and grinding it to the surface of the saddle 2. When grinding, impurities deposited on the saddle surface are squeezed out, and the locking body 3 is seated on the saddle 2.

Claims (1)

Invention Formula A controllable valve containing a casing () a cover with a lid, in the cavity of which a shut-off organ connected to the drive, which interacts with the saddle and is equipped with a seat surface cleaning unit, characterized in that it is equipped with A shaped elastic element, a locking joint (), is composed of two parts, in one of which, connected to the drive, a ring flange is made with two projections directed to the axis of the ол) on its end, and in another part with opposite saddle an annular flange is made with two corresponding protrusions, an annular flanging with grooves; in this case, through screw grooves are made in the (), tantsev () and flanging, a rod is installed perpendicular to the axis of the part of the locking member, protruding ends KtJTOpoi o are placed in the said screw slots, and the profiled elastic element is mounted between the parts behind the