RU221468U1 - POSITION INDICATOR FOR PIPELINE FITTINGS - Google Patents

Abstract

The utility model relates to the field of valve engineering, in particular to indicators of the position of the shut-off valve of a quarter-turn pipeline valve (TPA), and can be used in ball valves and butterfly valves. The purpose of the utility model is to provide high precision visual control of the location of the shut-off valve of the injection molding machine in its final positions. The technical result of the utility model is to increase the information content of visual monitoring of the location of the shut-off valve of the injection molding machine in its final positions from ground level. The stated problem is solved, and the technical result is achieved by an indicator of the position of the shut-off body of pipeline fittings, consisting of an indicator post with an indicating element attached to it, characterized in that the extreme position mark “O” is made in the upper part of the indicator post, and the end part of the indicating element is attached plate with the extreme position mark “Z” made on it.

Description

The utility model relates to the field of valve engineering, in particular to indicators of the position of the shut-off valve of a quarter-turn pipeline valve (TPA), and can be used in ball valves and butterfly valves.

The quarter reversible injection molding machine is equipped with a shut-off valve position indicator, which is designed to visualize the movement of the shut-off valve when rearranging the valve, as well as determining the current position of the shut-off valve in the final (open and closed) positions. The pointer rotates a quarter turn clockwise when closing, counterclockwise when opening [Products of JSC NPO Tyazhpromarmatura drive devices http://www.aztpa.ru/products/privodnye-ustroystva / access date 03/01/2023].

There is a known indicator of the position of the shut-off element [SU 1712727 A1, F16K 37/00] containing a fixed body, fixed by an elemental scale made along a helix and showing an element made in the form of a spring with a number of turns not less than the number of revolutions of the shut-off element, and the scale is marked on on the outside of the turns, and the indicating element is made in the form of a female bracket fixed in the groove of the housing.

The main disadvantage of the known solution is its limited use only on pipeline fittings with a retractable spindle.

A pipeline valve drive cover with a shut-off valve position indicator is known [RU 2378557 C2 F16K 37/10], containing a flange in which a pipe is coaxially fixed, parallel to which a shut-off valve position indicator is installed, consisting of a screw drive kinematically connected to the driven wheel, moving the nut - travel indicator relative to the transparent casing with a scale of final and intermediate positions of the shut-off element.

The disadvantages of the known solution include low visualization of the locking body position indicator due to the small dimensions of the indicator.

The closest analogue to the claimed utility model is the position indicator of the shut-off body [Products of JSC NPO Tyazhpromarmatura, drive devices, pneumatic-hydraulic drives http://www.aztpa.ru/upload/iblock/22d/22d671e9baa42213638a778b524a2125.pdf / access date 03/01/2023] , made in the form of an arrow, fixed on the spindle of the injection molding machine drive, and interacting with the factory drive marks (“O”, “Z”) located on the upper plane of the drive cover. The position of the shutter is determined visually by the pointer arrow directed to the factory mark of the drive (“O” or “Z”).

The main disadvantages of this device are:

low information content of the locking body position indicator when the personnel eye level is below the upper plane of the drive, since there is no visibility of the factory drive marks (“O”, “Z”) located on the upper plane of the drive cover, and the accuracy of determining the final position is reduced, since the position of the pointer arrow and the factory marks of the drive (“O”, “Z”) are not compared;

insufficient viewing area of the indicator when the injection molding machine drive is placed high relative to the ground surface, since its visibility is blocked (obstructed) by the drive housing, the indicator is located in a “blind” (not accessible to view from the ground) zone.

The purpose of the utility model is to provide high accuracy visual control of the location of the shut-off valve of the injection molding machine in its final positions.

The technical result of the utility model is to increase the information content of visual monitoring of the location of the shut-off valve of the injection molding machine in its final positions from ground level.

The stated problem is solved, and the technical result is achieved by an indicator of the position of the shut-off element of pipeline fittings, consisting of an indicator post with an indicating element attached to it, characterized in that the extreme position mark “O” is made in the upper part of the indicator post, and the end part of the indicating element is attached plate with the extreme position mark “Z” made on it.

An indicator of the position of the shut-off element of pipeline fittings, consisting of an indicator post with an indicating element attached to it, characterized in that in the upper part of the indicator post there is an extreme position mark “O”, and a plate with an extreme position mark made on it is attached to the end part of the indicating element "Z".

The declared position indicator of the shut-off valve of pipeline fittings is explained using:

fig. 1 - view of the pointer in the open position;

fig. 2 - view of the pointer in the closed position.

The designations shown in Fig. 12:

1 - pointer stand;

2 - welding;

3 - indicating element;

4 - hole;

5 - extreme position mark “O”;

6 - arrow;

8 - plate;

7 - welding;

9 - extreme position mark “Z”;

10 - risk;

11 - side surface;

12 - drive cover;

13 - bolt;

14 - nut;

15 - groove;

16 - rod.

The device consists of an indicator post (1) with an indicating element (3) attached by welding (2), while the indicator post (1) is made of a metal plate in which two holes (4) are made symmetrically relative to the vertical axis in its lower part. , and in the upper part there is an extreme position mark “O” (5), preferably by cutting out the outline of the letter “O”, the height of the indicator stand (1) ensures that personnel can see the extreme position mark “O” (5) from ground level, and the indicating element ( 3) is made in the form of a metal pointer, preferably from an angle, one of the ends of which is pointed in the form of an arrow (6), and to the end side of the second end of the indicating element (3) a metal plate (8), made primarily in the form of a diamond, with an extreme position mark “Z” (9), preferably made by cutting out the contour of the letter “Z” and located symmetrically relative to the vertical axis of the plate (8).

The operation of the pipeline valve shut-off valve position indicator is carried out as follows.

The personnel performs the rearrangement of pipeline fittings from the ground level from the control unit, while visually monitoring the rearrangement process by the rotational movement of the indicating element (3) of the valve position indicator. When the shutter reaches its extreme position, the personnel performs visual inspection of the correct installation of the shutter in its extreme position. To do this, in the open position of the shutter, alignment (projection) of the marks (10) located on the plane perpendicular to the side surface (11) of the drive cover (12) and passing through the central axis of the rod (13) with the center of the position mark “O” (5) is performed, located on the indicator post (1), if the mark (10) corresponds to the center of the position mark “O” (5), a conclusion is drawn that the shutter position corresponds to the extreme open position. In the closed position of the shutter, the marks (10) are aligned (projected) with the center of the position mark “Z” (9); if the marks (10) correspond to the center of the position mark “Z” (9), a conclusion is made that the shutter position corresponds to the extreme closed position.

The fastening of the position indicator of the shut-off body of pipeline fittings can be made detachable using bolts (14) installed in the holes (4) and nuts (15) due to the connection in the end groove (16) of the injection molding machine drive rod (13), which is mechanically connected to spindle of the shut-off body of pipeline fittings.

Monitoring the current position of the valve during operation (periodic walk-throughs, inspections, maintenance, etc.) is carried out in a similar way from the ground level, checking whether the current position of the shut-off valve corresponds to the required value in accordance with the technological mode (open, closed).

The essential distinctive features of the declared position indicator of the shut-off valve of pipeline valves are:

the presence of extreme position marks “O”, “Z” on the indicator, ensuring the accuracy of visual control from ground level of the position of the shut-off valve in the final (open and closed) positions;

high information content of the indicator of the position of the shut-off body, since the position is determined by the extreme position marks “O”, “Z” located on the indicator, visually accessible from ground level;

a sufficient viewing area of the indicator, since the height of the position indicator of the shut-off body is determined from the condition of ensuring the visibility of the position marks “O”, “W” on the indicator post;

A prototype was manufactured for the claimed device, which was successfully tested during the maintenance of ball valves at the facilities of Gazprom Transgaz Ukhta LLC.

The claimed device allows you to monitor the current position of the valve when performing maintenance and diagnosing ball valves, and is intended to identify malfunctions of ball valves for the purpose of their subsequent elimination.

Claims (1)

An indicator of the position of the shut-off element of pipeline fittings, consisting of an indicator post with an indicating element attached to it, characterized in that in the upper part of the indicator post, symmetrically relative to its vertical axis, an extreme position mark “O” is made, and a plate with an end position is attached to the end part of the indicating element on it symmetrically relative to its vertical axis with the extreme position mark “Z”.

Images