RU34623U1 - VALVE MULTIFUNCTIONAL - Google Patents

Description

VALVE MULTIFUNCTIONAL. 2 n AND INR (Illl Mill 1 | Щ III МПК7Е21В34 / 06 Е 21В 34/12

The utility model relates to the oil and gas industry and is used when drilling wells (oil, gas and water).

Known backwash valve containing a housing having a cavity with a side channel in communication with the external space of its vertical section, and with a ball valve placed in the cavity, see patent of the Russian Federation No. 2081997 for class. ЕВВ 34/06, publ. 1997

This valve does not provide protection against contamination and impurities when it is lowered from the pipe string.

Known multi-function valve having a housing with a side opening, locking elements with a shutter and with seats, see Asfandiyarov H.A., Maksutov R.A. “Oil and gas occurrences and open fountains during the operation of wells. M .: Nedra, 1986.P. 50-51.

The design of this valve does not provide high performance shut-off elements.

A multifunctional valve is included, including a drain and a non-return valve located in a single housing with a side opening, a non-return valve containing a shut-off element with a shutter in the form of a ball and with seats - lower and upper spring-loaded and middle shut-off, see utility model of the Russian Federation X 25527 for cl . E21B34 / 06, 34/12, publ. 2002. In addition, a fourth seat is made in the valve.

located in the side opening of the housing, and an additional shutter in the form of a ball placed in the upper saddle and interacting with the saddle in the housing.

This technical solution is taken as a prototype of this utility model.

However, it has disadvantages.

At the prototype valve, the ball does not provide a tight closure of the side hole in the body due to mechanical impurities being in the borehole on the saddle, while the structural implementation of the locking device requires accurate positioning of the ball opposite the hole, otherwise the hole in the body will not be blocked, which will lead to valve inoperability.

The present utility model is based on the solution of a problem that makes it possible to increase the operability of the valve by increasing the reliability of closing the holes in the drain valve body.

According to a utility model, this problem is solved due to the fact that the multi-functional valve includes drain and check valves placed in a single housing with a side opening; the check valve contains a locking element with a shutter in the form of a ball and with lower and upper spring-loaded and middle locking saddles; the drain valve contains a guide with a hole, the diameter of which is much smaller than the diameter of the hole in the housing, and a piston spring-loaded relative to it, having the possibility of axial movement in the housing and along the axis of the guide and the opening of the hole in the latter, and is paired with the upper seat, while the upper seat is placed in the locking saddle

with the possibility of axial movement in it.

The applicant has not identified sources containing information on technical solutions identical to the present invention, which allows us to conclude that it meets the criterion of "novelty.

The essence of the utility model is illustrated by the drawing, which shows the valve multifunctional / section /.

The valve contains:

Building 1,

lower spring seat 2,

ball shutter 3,

middle locking seat 4,

upper spring seat 5,

piston 6,

guide 7,

hole 8 (in housing 1),

hole 9 (in the guide 7).

1 The multifunction valve includes a drain and non-return valve, located in a single housing 1. Housing 1 has a side opening 8.

The check valve contains a shut-off element with a shutter in the form of a ball 3 and with a lower spring-loaded 2, a middle shut-off 4 and an upper spring-loaded 5 saddles. The upper saddle 5 is placed in the locking saddle 4 and has the possibility of axial movement in it.

3

The drain valve contains a guide 7 and a piston 6. The guide 7 has a hole 9. The hole 9 is made with a diameter smaller than the diameter of the hole 8 in the housing 1. The piston 6 is spring-loaded relative to the guides; to it 7. The piston 6 has the possibility of axial repositioning in the housing 1 and along axis of the guide 7. The piston 6 has the ability to overlap the holes 9 in the guide 7. The piston 6 is paired with the upper seat 5 of the check valve.

Valve operation is carried out as follows.

When the fluid is supplied, the valve in the form of a ball 3 rotates and lowers together with the lower seat 2 in the housing 1. The upper saddle 5 follows downstream of the valve 3, and the piston 6 moves upward along the guide 7. Since the hole 8 in the housing 1 is much larger than the hole 9 in guide 7, under the piston 6 and above it there is a pressure drop. The piston 6, pushed by the liquid, covers the hole 9 and even faster rushes up to the stop in the guide 7. After turning off the fluid supply, the piston 6 is in the lower position, while the hole 9 is opened to drain the liquid.

The proposed check valve can be manufactured industrially, which is confirmed by the tests of the experimental batch, and this determines, according to the applicant, its compliance with the criterion of "industrial applicability.

Claims (1)

The valve is multifunctional, including a drain and non-return valve, housed in a single housing with a side opening, a non-return valve, containing a locking element with a valve in the form of a ball and with lower and upper - spring-loaded and middle - locking seats, characterized in that the drain valve contains a guide with a hole, the diameter of which is much smaller than the diameter of the hole in the housing, and a piston spring-loaded relative to it, having the possibility of axial movement in the housing and along the axis of the guide and overlapping the holes in the last one and is paired with the upper saddle, while the upper saddle is placed in the locking saddle with the possibility of axial movement in it.