CN104482291A - Valve position indicator for non-rising stem valves - Google Patents
Valve position indicator for non-rising stem valves Download PDFInfo
- Publication number
- CN104482291A CN104482291A CN201410792029.8A CN201410792029A CN104482291A CN 104482291 A CN104482291 A CN 104482291A CN 201410792029 A CN201410792029 A CN 201410792029A CN 104482291 A CN104482291 A CN 104482291A
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- CN
- China
- Prior art keywords
- valve
- stem
- rotary unit
- rising
- ono
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0008—Mechanical means
Abstract
The invention discloses a valve position indicator for non-rising stem valves, which comprises a rotary unit, a support and an indication block; the bottom of the rotary unit is arranged between a valve stem and a valve packing box and fixed on the valve stem, the middle part and top of the rotary unit are extended out of the valve packing box, and the rotary unit can rotate along with the valve stem; a handwheel is arranged at the top of the rotary unit; the periphery of the middle part of the rotary unit is provided with a helical drive slide way; the support is arranged on the valve packing box, and is provided with a U-shaped slide way; one end of the indication block is in contact with the drive slide way of the rotary unit, and the other end of the indication block is arranged in the slide way of the support; when a valve needs to be opened or closed, the handwheel is rotated, the rotary unit and the valve stem rotate along with the handwheel, one end of the indication block drives the other end of the indication block to move up and down in the slide way of the support under the function of the drive slide way of the rotary unit, and thereby the opening or closing stat of the valve is indicated. The valve position indicator has the following advantages: the structure is simple, operability is high, and the opening or closing state of the valve can be accurately judged.
Description
Technical field
The present invention relates to valve opening/closing device field, be specifically related to a kind of valve phase indicator for ono-rising-stem valve.
Background technique
The exploitation in oil field needs to use a large amount of valves, in the different phase of exploitation, needs unlatching repeatedly or closes corresponding valve to reach the object of safety in production, at this moment accurately must judge rapidly the on off state of valve.
Traditional rising stem valve door is simple, with low cost, but is directly exposed in environment due to valve rod, easily damages, thus gradually replace by ono-rising-stem valve; But ono-rising-stem valve is in opening-closing process, valve rod does not have and moves up and down, and this makes ono-rising-stem valve as rising stem (RS.) valve, directly cannot be judged the on off state of valve by the position observing valve rod, easily causes misoperation, and brings inconvenience to execute-in-place; So it is very important for inventing high, that structure is simple, the easy to maintenance position indicating device of a kind of reliability for ono-rising-stem valve.
Summary of the invention
The object of the present invention is to provide a kind of valve phase indicator for ono-rising-stem valve, the valve switch indicating device that reliability is high for it, structure is simple, easy to maintenance.
In order to achieve the above object, the present invention is achieved through the following technical solutions:
For a valve phase indicator for ono-rising-stem valve, described ono-rising-stem valve comprises handwheel, valve rod and is set in the valve packing box outside described valve rod, and it is characterized in that, described valve phase indicator comprises:
Rotary unit, to be located at bottom it between described valve rod and valve packing box and to be fixed on described valve rod, stretching out outside described valve packing box in the middle part of it with top, and this rotary unit can be followed described valve rod and be rotated; Described handwheel is located at the top of described rotary unit; Spiral helicine transmission slide rail is provided with in the outer ring, middle part of described rotary unit;
Support, it is located on described valve packing box, and this support is provided with U-shaped chute;
Indicator collet, its one end contacts with the transmission slide rail of described rotary unit, and its other end is located in the chute of described support; During opening and closing valve, rotation hand wheel, rotary unit and valve rod rotate thereupon, and one end of this indicator collet drives its other end to move up and down in the chute of support under the effect of rotary unit transmission slide rail, are used for pointing out the open and-shut mode of valve.
The above-mentioned valve phase indicator for ono-rising-stem valve, wherein, described rotary unit comprises:
Valve stem casing, to be located at bottom it between described valve rod and valve packing box and to be fixed on described valve rod, stretching out outside described valve packing box in the middle part of it with top, and this valve stem casing can be followed described valve rod and be rotated; Described handwheel is located at the top of this valve stem casing;
Nut sleeve, its outer wall is provided with outside thread to form described transmission slide rail, and described nut sleeve is set in the middle part of described valve stem casing, and can follow the rotation of described valve stem casing.
The above-mentioned valve phase indicator for ono-rising-stem valve, wherein,
One end of described indicator collet is provided with the internal thread suitable with outside thread in described nut sleeve.
The above-mentioned valve phase indicator for ono-rising-stem valve, wherein,
It is outside that described nut sleeve is fixed on described valve stem casing by interior hexagonal Cock screw.
The above-mentioned valve phase indicator for ono-rising-stem valve, wherein,
The externally threaded number of turns in described nut sleeve >=described valve rod is from being opened to the number of turns rotated throttle down process.
The above-mentioned valve phase indicator for ono-rising-stem valve, wherein,
Described support and described nut sleeve are in same level position, and it is unsettled setting relative to described nut sleeve, are fixed on described valve packing box bottom it.
The above-mentioned valve phase indicator for ono-rising-stem valve, wherein, also comprises: proximity switch, and it is arranged on described side face, for responding to the position of described indicator collet, and the on off state of distinct feed-back valve.
The above-mentioned valve phase indicator for ono-rising-stem valve, wherein: described support is fixed on described valve packing box by socket head screw.
The above-mentioned valve phase indicator for ono-rising-stem valve, wherein: in the length of described support upper hopper chute and described nut sleeve, externally threaded length adapts; In the position of described support upper hopper chute and described nut sleeve, externally threaded position adapts.
The present invention compared with prior art has the following advantages: this device is highly suitable for the on-the-spot severe operating environment of oil field development, it provides visual, the judgment mode of these two kinds of valve switch states of proximity switch distinct feed-back, can meet the various needs in operating mode.
Accompanying drawing explanation
Fig. 1 is main sectional view of the present invention;
Fig. 2 is right elevation of the present invention.
Embodiment
Below in conjunction with accompanying drawing, by describing a preferably specific embodiment in detail, the present invention is further elaborated.
As shown in Figure 1, a kind of valve phase indicator for ono-rising-stem valve, the valve packing box 3 that described ono-rising-stem valve comprises handwheel 1, valve rod 2 and is set in outside described valve rod 2, described valve phase indicator comprises: rotary unit, to be located at bottom it between described valve rod 2 and valve packing box 3 and to be fixed on described valve rod 2, stretch out with top in the middle part of it outside described valve packing box 3, this rotary unit can be followed described valve rod 2 and be rotated; Described handwheel 1 is located at the top of described rotary unit; Spiral helicine transmission slide rail is provided with in the outer ring, middle part of described rotary unit; Support 7, it is located on described valve packing box 3, and this support 7 is provided with U-shaped chute 71; Indicator collet 6, its one end contacts with the transmission slide rail of described rotary unit, and its other end is located in the chute 71 of described support 7; During opening and closing valve, rotation hand wheel 1, rotary unit and valve rod 2 rotate thereupon, and one end of this indicator collet 6 drives its other end to move up and down in the chute 71 of support 7 under the effect of rotary unit transmission slide rail, are used for pointing out the open and-shut mode of valve.
Described rotary unit comprises: valve stem casing 4, it has done extension design on the basis of traditional valve stem casing, to be located at bottom it between described valve rod 2 and valve packing box 3 and to be fixed on described valve rod 2, stretch out with top in the middle part of it outside described valve packing box 3, this valve stem casing 4 can be followed described valve rod 2 and be rotated; Described handwheel 1 is located at the top of this valve stem casing 4; Nut sleeve 5, its outer wall is provided with outside thread 51 to form described transmission slide rail, and described nut sleeve 5 is set in the middle part of described valve stem casing 4, and can follow described valve stem casing 4 and rotate.
One end of described indicator collet 7 is provided with the internal thread suitable with outside thread 51 in described nut sleeve 5.
It is outside that described nut sleeve 5 is fixed on described valve stem casing 4 by interior hexagonal Cock screw 9.
In described nut sleeve 5, the number of turns >=described valve rod 2 of outside thread 51 is from being opened to the number of turns rotated throttle down process.
Described support 7 is in same level position with described nut sleeve 5, and it is unsettled setting relative to described nut sleeve 5, is fixed on described valve packing box 3 bottom it.
Described support 7 is fixed on described valve packing box 3 by socket head screw 8.
In the length of described support 7 upper hopper chute 71 and described nut sleeve 5, the length of outside thread 51 adapts; In the position of described support 7 upper hopper chute 71 and described nut sleeve 5, the position of outside thread 51 adapts.
As shown in Figure 2, in the present embodiment, the outside thread 51 in described nut sleeve 5 is set to right-handed thread, and the top moving to described chute 71 when indicator collet 6 represents that valve is closed, and the bottom moving to described chute 71 when indicator collet 6 represents that valve is opened; The present invention also comprises: proximity switch, and it is arranged on described support 7 side, for responding to the position of described indicator collet 6, and the on off state of distinct feed-back valve.
The concrete use step of the present invention is as follows:
When throttle down, then (above valve) turns clockwise handwheel 1, indicator collet 6 moves from lower to upper in chute 71, can not rotate again when handwheel 1 rotates to the complete closed position of valve, now indicator collet 6 moves to the top of chute 71 just, can judge that valve is in closed condition from visual;
When Open valve, then (above valve) is rotated counterclockwise handwheel 1, indicator collet 6 moves from top to bottom in chute 71, can not rotate again when handwheel 1 rotates to valve full open position, now indicator collet 6 moves to the bottom of chute 71 just, can judge that valve is in opening state from visual.
The present invention only changes on the top of traditional ono-rising-stem valve, structure is simple, strong operability, and accurately can judge the open and-shut mode of valve, be highly suitable for the on-the-spot severe operating environment of oil field development, and its provide visual, the judgment mode of proximity switch distinct feed-back two kinds of valve switch states, fully meet the various needs in operating mode.
Although content of the present invention has done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be considered to limitation of the present invention.After those skilled in the art have read foregoing, for multiple amendment of the present invention and substitute will be all apparent.Therefore, protection scope of the present invention should be limited to the appended claims.
Claims (9)
1., for a valve phase indicator for ono-rising-stem valve, described ono-rising-stem valve comprises handwheel (1), valve rod (2) and is set in described valve rod (2) valve packing box (3) outward, and it is characterized in that, described valve phase indicator comprises:
Rotary unit, to be located at bottom it between described valve rod (2) and valve packing box (3) and to be fixed on described valve rod (2), stretching out described valve packing box (3) outward in the middle part of it with top, and this rotary unit can be followed described valve rod (2) and be rotated; Described handwheel (1) is located at the top of described rotary unit; Spiral helicine transmission slide rail is provided with in the outer ring, middle part of described rotary unit;
Support (7), it is located on described valve packing box (3), and this support (7) is provided with U-shaped chute (71);
Indicator collet (6), its one end contacts with the transmission slide rail of described rotary unit, and its other end is located in the chute (71) of described support (7); During opening and closing valve, rotation hand wheel (1), rotary unit and valve rod (2) rotate thereupon, and one end of this indicator collet (6) drives its other end to move up and down in the chute (71) of support (7) under the effect of rotary unit transmission slide rail, are used for pointing out the open and-shut mode of valve.
2., as claimed in claim 1 for the valve phase indicator of ono-rising-stem valve, it is characterized in that, described rotary unit comprises:
Valve stem casing (4), to be located at bottom it between described valve rod (2) and valve packing box (3) and to be fixed on described valve rod (2), stretching out described valve packing box (3) outward in the middle part of it with top, and this valve stem casing (4) can be followed described valve rod (2) and be rotated; Described handwheel (1) is located at the top of this valve stem casing (4);
Nut sleeve (5), its outer wall is provided with outside thread (51) to form described transmission slide rail, and described nut sleeve (5) is set in the middle part of described valve stem casing (4), and can follow described valve stem casing (4) rotation.
3., as claimed in claim 2 for the valve phase indicator of ono-rising-stem valve, it is characterized in that:
One end of described indicator collet (7) is provided with the internal thread that upper outside thread (51) is suitable with described nut sleeve (5).
4., as claimed in claim 2 for the valve phase indicator of ono-rising-stem valve, it is characterized in that:
It is outside that described nut sleeve (5) is fixed on described valve stem casing (4) by interior hexagonal Cock screw (9).
5., as claimed in claim 2 for the valve phase indicator of ono-rising-stem valve, it is characterized in that:
The number of turns >=described the valve rod (2) of the upper outside thread (51) of described nut sleeve (5) is from being opened to the number of turns rotated throttle down process.
6., as claimed in claim 2 for the valve phase indicator of ono-rising-stem valve, it is characterized in that:
Described support (7) and described nut sleeve (5) are in same level position, and its relative to described nut sleeve (5) in unsettled setting, be fixed on bottom it on described valve packing box (3).
7., as claimed in claim 2 for the valve phase indicator of ono-rising-stem valve, it is characterized in that, also comprise: proximity switch, it is arranged on described support (7) side, for responding to the position of described indicator collet (6), and the on off state of distinct feed-back valve.
8., as claimed in claim 6 for the valve phase indicator of ono-rising-stem valve, it is characterized in that: described support (7) is fixed on described valve packing box (3) by socket head screw (8).
9. as claimed in claim 6 for the valve phase indicator of ono-rising-stem valve, it is characterized in that: the length of the length of described support (7) upper hopper chute (71) and the upper outside thread (51) of described nut sleeve (5) adapts; The position of the position of described support (7) upper hopper chute (71) and the upper outside thread (51) of described nut sleeve (5) adapts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410792029.8A CN104482291A (en) | 2014-12-19 | 2014-12-19 | Valve position indicator for non-rising stem valves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410792029.8A CN104482291A (en) | 2014-12-19 | 2014-12-19 | Valve position indicator for non-rising stem valves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104482291A true CN104482291A (en) | 2015-04-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410792029.8A Pending CN104482291A (en) | 2014-12-19 | 2014-12-19 | Valve position indicator for non-rising stem valves |
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| CN (1) | CN104482291A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104864169A (en) * | 2015-05-19 | 2015-08-26 | 河北金桥平衡阀门有限公司 | Display device for opening or closing state of multi-turn valve |
| CN109424778A (en) * | 2017-09-03 | 2019-03-05 | 河北高达电子科技有限公司 | A kind of automatically controlled throttle valve |
-
2014
- 2014-12-19 CN CN201410792029.8A patent/CN104482291A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104864169A (en) * | 2015-05-19 | 2015-08-26 | 河北金桥平衡阀门有限公司 | Display device for opening or closing state of multi-turn valve |
| CN109424778A (en) * | 2017-09-03 | 2019-03-05 | 河北高达电子科技有限公司 | A kind of automatically controlled throttle valve |
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Application publication date: 20150401 |
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| WD01 | Invention patent application deemed withdrawn after publication |