RU61828U1 - SEMI-HOUSING VALVE LATCH AND VALVE LATCH - Google Patents

Abstract

The utility model relates to the field of petroleum and chemical engineering and can be used as a locking and regulating device on pipelines and channels of wells transporting a working medium, for example, oil, industrial water. The technical task is to increase the manufacturability of the manufacture of half-bodies and valves and reduce the metal production. The gate valve half-housing consists of a nozzle with a seat, external and internal flanges, made separate, the nozzle is equipped with annular flanges, and the external and internal flanges are reciprocal grooves. The outer and inner flanges can be connected to the nozzle using a threaded connection. The slide gate valve comprises a housing made of two separate half-shells with seats in which saddles with passage channels are installed, an expansion ring, between the half-shells with the possibility of rotation, a slide with a passage hole is placed in its plane.

Description

The utility model relates to the field of petroleum 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 valves 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 located along and symmetrical to the nozzle axis, and in the passage channel from the inside, symmetrically with respect to the axis of the middle channel of the bore to install 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 equipped 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 gate valve is the low-tech manufacturing, as well as the high metal consumption in the manufacture of half-bodies from solid metal billets.

The technical task is to increase the manufacturability of the manufacture of half-bodies and valves and reduce the metal production.

The technical result is achieved in the half-body of the slide gate valve, consisting of a nozzle with a seat, outer and inner flanges made separate, the nozzle is equipped with annular flanges, and the outer and inner flanges are reciprocal grooves. The outer and inner flanges can be connected to the nozzle using a threaded connection.

The technical result is achieved in a slide gate valve comprising a housing made of two half-bodies with seats in which saddles with passage channels are installed, a spacer ring, between the half-bodies with a possibility of rotation, a gate with a passage hole is placed in its plane. Each half-housing consists of a nozzle, outer and inner flanges, made separate, the seat is made in the nozzle, the nozzle is equipped with annular flanges, and the outer and inner flanges are reciprocal grooves. The outer and inner flanges can be connected to the nozzle 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, an external flange 2 and an internal flange 3, made separate. The pipe 1 is equipped with annular beads 4, 5, and the outer and inner flanges 2, 3, mating grooves 6, 7, respectively. The outer and inner flanges 2, 3 can be connected to the pipe 1 using a threaded connection (not shown).

Gate valve (figure 2) contains a housing made of two separate half-hulls. Each half-housing consists of a pipe 1, external and internal flanges 2, 3, with a seat 8 made in the pipe 1. In the seats 8 installed saddles 9 with passage channels. Between the half-shells, in the cavity

formed by the spacer ring 11, with the possibility of rotation in its plane, placed the gate 10 with a through hole.

The half-hull is assembled as follows.

Separately manufactured pipe 1, the outer and inner flanges 2, 3. In the hole in the inner flange 3, the pipe 1 is inserted until the stop of the annular flange 5 in the reciprocal groove 7. For this, the annular collar 4 and the corresponding counter groove 6 on the outer flange 2 have a smaller diameter than the hole in the inner flange 3. Then, through the hole in the outer flange 2, the pipe 1 is installed until the stop of the annular collar 4 in the reciprocal groove 6. The tightness of the joints is achieved, for example, when the parts are hot-seated. When using a thread to connect the pipe 1 to the external and internal flanges 2, 3, the assembly procedure is the same as when using a hot fit.

The seat 8 can be made in the pipe 1 both before and after the assembly of the half-shell.

Slide gate valve with separate half-bodies is assembled as follows.

In the assembled, in the above order, half-shells, seats 8 are made for saddles 9. All valve elements are installed, in particular, the seats 9, the spacer ring 11, the gate 10 between the half-shells, which are then pulled together by bolts. When the valve is operating, the gate 10 rotates in its plane, opening or closing the passage for liquid.

Thus, the gate valve with the described half-bodies is characterized by manufacturability. At the same time, the design of separate half-bodies ensures their tightness during the operation of the valve. Reducing the metal production, depending on the size of the valve can be from 10 to 50 percent.

Claims (5)

1. The half-body of the slide gate valve, consisting of a nozzle, outer and inner flanges, made separate, the nozzle is equipped with annular flanges, and the outer and inner flange are reciprocal grooves. 2. The half-housing according to claim 1, characterized in that the nozzle has a seat. 3. The half-housing according to claim 1, characterized in that the outer and inner flanges are connected to the pipe using a threaded connection. 4. A slide gate valve comprising a housing made of two half-bodies with seats in which saddles with passage channels are installed, a spacer ring, between the half-bodies, with the possibility of rotation in its plane, a gate with a passage, an opening is placed, each half-housing consisting of the pipe, the outer and inner flanges are made separate, the seat is made in the pipe, the pipe is equipped with annular flanges, and the outer and inner flanges are reciprocal grooves. 5. Gate valve according to claim 4, characterized in that the outer and inner flanges are connected to the pipe by means of a threaded connection.