RU214635U1 - Device for inspection of anti-surge valves - Google Patents

Abstract

The utility model relates to non-destructive testing and can be used to examine, with the help of optical means, the technical condition of hard-to-reach places, cavities of shut-off valves, for example, the flow part and fastening of the piston rod of anti-surge valves.

A device for examining anti-surge valves, containing a rigid tube without transitional connections for feeding a video endoscope into the cavity of the anti-surge valve, in the lower part of which a longitudinal cut with a bend is made along the axis.

The technical result of using the utility model is to simplify the implementation and reduce the time of inspection of anti-surge valves.

Description

The utility model relates to non-destructive testing and can be used to examine, with the help of optical means, the technical condition of hard-to-reach places, cavities of shut-off valves, for example, the flow part and fastening of the piston rod of anti-surge valves.

Currently, work on the inspection of anti-surge valves involves their dismantling with the replacement of end flange seals to gain access to the inside of the valve. Therefore, the problem of examining the valve without dismantling it and replacing the end flange seals is relevant.

In the gas transmission industry, diagnostic tool delivery devices are widely used to inspect gas turbine engines. For example, video endoscope delivery devices for inspecting gas turbine engine components.

A device for delivering a flexible diagnostic tool into the flow path of a gas turbine engine is known (Patent RU 2013758 C1, publ. 05/30/1994), containing an elastic element in the form of a tube made in the form of a spiral with a pitch of turns equal to the width of the interblade lattice of a gas turbine engine.

A device for monitoring the components of a gas turbine engine is known (Patent RU 188900 U1, publ. 29.04.2019). The device comprises a tube and a bushing attached to it, a fixing element located on the tube, the tube is made of a spring with a bend, additionally contains a rod that can be installed in the tube and removed from the tube after control.

Such devices are not used to control valve assemblies, and in particular, to inspect anti-surge valves due to the lack of a constructive possibility of feeding them into the fitting hole for installing a pressure gauge located in the upper part of the pipeline, as well as the impossibility of using it to inspect the flow path and fasten the stem anti-surge valve pistons.

As a result of the information search, the closest analogue was not selected.

The technical problem solved by the proposed utility model is the creation of a device for examining anti-surge valves.

The technical result of using the utility model is to simplify the implementation and reduce the time of inspection of anti-surge valves.

The specified technical result is achieved by the device for examining anti-surge valves, containing a rigid tube without transitional connections for feeding a video endoscope into the cavity of the anti-surge valve, in the lower part of which a longitudinal cut with a bend is made along the axis.

The proposed utility model is illustrated by the following figures.

In FIG. 1 shows a device for examining anti-surge valves;

in fig. 2 is an example of the installation of the device and its use for examining the technical condition of anti-surge valves.

The device for examining anti-surge valves (Fig. 1) consists of a solid, without adapters, rigid tube (1) made of any soft metal, such as aluminum, with a length of 1 m to 1.5 m and a diameter of 10 mm to 15 mm. At the end of the tube (1) there is a longitudinal cutout (2) along the axis of the tube measuring from 50 mm to 70 mm with a bend from 10 degrees to 15 degrees, forming a bed for any video endoscope (3) with a viewing angle of at least 120 degrees, for example, Olympus IPLEX SA II R, which allows you to set the direction.

The device for examining anti-surge valves operates as follows (Fig. 2).

A guide tube (1) is lowered into the hole (4) of the fitting for installing a pressure gauge located in the upper part of the pipeline (5) to the entire depth of the pipeline (5). The video endoscope (3) is fed from above through the guide tube (1), the bend (2) of which provides the necessary direction for examining the technical condition of the flow path (6) and fastening the stem (7), piston (8) of the anti-surge valve. In this case, the direction of the video endoscope (3) is corrected by turning the guide tube (1).

Thus, the proposed utility model makes it possible to examine the technical condition of anti-surge valves. Due to the rigid, without adapters, the tube is installed in the anti-surge valve pressure gauge hole. A longitudinal cut with a bend at the end of the lower part of the device allows you to provide the necessary direction of the video endoscope in the cavity of the anti-surge valve for its examination.

Claims (1)

A device for examining anti-surge valves, containing a rigid tube without transitional connections for feeding a video endoscope into the cavity of the anti-surge valve, in the lower part of which a longitudinal cut with a bend is made along the axis.

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