RU72291U1 - SEMI-HOUSING VALVE LATCH AND VALVE LATCH - Google Patents

Abstract

1. The half-body of the slide gate valve, consisting of a nozzle with an external flange made of a single piece, the nozzle is connected to the inner flange using a threaded connection. 2. A slide gate valve containing a housing made of two half-shells, a spacer ring, a gate is placed between the half-shells, each half-shell consists of a nozzle with an external flange made of a single piece, the nozzle is connected to the inner flange using a threaded connection.

Description

The utility model relates to the field of oil and chemical engineering and can be used as a locking and regulating device in pipelines transporting a working medium, for example, oil, industrial water under pressure up to 35 MPa, as well as for blocking the channels of wellhead fittings for fountain, pump and injection wells .

A known valve body module, according to utility model RU56982, is made in the form of a tee, having grooves or protrusions in the middle channel along and symmetrical to the pipe axis, and in the passage channel from the inside, symmetrically with respect to the axis of the middle channel of the bore for mounting seats, and from the outside sides - bores for flanges or welded ring elements. When operating under high pressure, there may be a violation of the tightness of the threaded connection housing-pipe.

Known valve SU 1399557 with nozzles provided with seats connected to the valve body. When operating under high pressure, the connection of the nozzles with the housing may be destroyed.

Known valve US 4440381 in which the nozzles, equipped with seats, made integral with the flanges, are connected to the body by means of bolts.

A common disadvantage of the known gate valves is the low manufacturing technology.

Known half-body slide gate valve and slide gate valve, made according to the patent for utility model RU 12713. The half-body of this gate valve is made whole and selected as a prototype. The valve according to the patent for utility model RU 12713 is also selected as a prototype and contains a housing made of two solid half-bodies, between which there is a spacer ring and a disk gate.

The disadvantage of this half-body and valve is the large consumption of metal in the manufacture of half-bodies from solid metal billets.

The technical challenge is to reduce the metal production.

The technical result is achieved in a half-body gate valve, consisting of a pipe with an external flange, the pipe is connected to the internal flange using a threaded connection.

The technical result is achieved in a slide gate valve containing a housing made of two half-bodies, a spacer ring, a gate is placed between the half-bodies. Each half-housing consists of a pipe with an external flange, the pipe is connected to the internal flange using a threaded connection.

The utility model is illustrated by drawings:

figure 1 is a half-body slide gate valve;

figure 2 - slide gate valve (side view);

figure 3 - slide gate valve (front view).

The half-body of the slide gate valve (Figs. 1, 3) consists of a pipe 1 with an external flange 2 and connected to a pipe 1 by means of a threaded connection, an internal flange 3.

Gate valve (figure 2) contains a housing made of two separate half-hulls. Each half-housing consists of a pipe 1, with an external flange 2 and connected to a pipe 1 by means of a threaded connection, an internal flange 3. In the seats 4 made in the pipes 1, saddles 5 with passage channels are installed. Between the half-shells, in the cavity formed by the spacer ring 6, with the possibility of rotation in its plane, there is a gate 7 with a through hole.

The half-shell is made as follows.

A pipe 1 with an external flange 2 is made from a solid billet. An internal flange 3 is made. The internal flange 3 is mounted on the pipe 1 using a threaded connection.

Slide gate valve with separate half-bodies is assembled as follows. In the assembled, in the above order, half-bodies, seats 4 are made for saddles 5. All valve elements are installed, in particular, seats 5, spacer ring 6, gate 7 between the half-bodies, which are then pulled together

bolts. When the valve is operating, the gate 7 rotates in its plane, opening or closing the passage for liquid.

The gate valve with the described half-shells is characterized by a reduced metal consumption of production, since the inner flange 3 has significantly larger dimensions than the outer flange 2, which, in the manufacture of a half-shell from a solid billet, leads to a large consumption of metal.

Claims (2)

1. The half-body of the slide gate valve, consisting of a nozzle with an external flange made of a single piece, the nozzle is connected to the inner flange using a threaded connection. 2. A slide gate valve containing a housing made of two half-shells, a spacer ring, a gate is placed between the half-shells, each half-shell consists of a nozzle with an external flange made of a one-piece blank, the nozzle is connected to the inner flange using a threaded connection.