CN104565426A - Top-assembling type wedge type ball valve ball body support shaft adjusting device - Google Patents
Top-assembling type wedge type ball valve ball body support shaft adjusting device Download PDFInfo
- Publication number
- CN104565426A CN104565426A CN201510022493.3A CN201510022493A CN104565426A CN 104565426 A CN104565426 A CN 104565426A CN 201510022493 A CN201510022493 A CN 201510022493A CN 104565426 A CN104565426 A CN 104565426A
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- China
- Prior art keywords
- valve
- adjusting axle
- ball
- support adjusting
- stuffing box
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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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
- F16K5/0663—Packings
- F16K5/0689—Packings between housing and plug
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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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
-
- 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
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/08—Details
- F16K5/14—Special arrangements for separating the sealing faces or for pressing them together
- F16K5/20—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces
- F16K5/201—Special arrangements for separating the sealing faces or for pressing them together for plugs with spherical surfaces with the housing or parts of the housing mechanically pressing the seal against the plug
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
Abstract
The invention relates to a top-assembling type wedge type ball valve ball body support shaft adjusting device. The top-assembling type wedge type ball valve ball body support shaft adjusting device comprises a ball body and a support adjusting shaft, the support adjusting shaft is arranged in an inner groove in the lower part of the ball body, a valve rod pressing sleeve sleeves the periphery of the support adjusting shaft and is tightened with the ball body through a wrench, and the ball body is matched and connected with the valve rod pressing sleeve into a single unit through a locking bolt I; an O-shaped sealing ring I is arranged between the support adjusting shaft and an outside valve body; a lower stuffing box is arranged at the lower part of the support adjusting shaft, and an O-shaped sealing ring II is arranged at the outer edge of the lower stuffing box; several groups of lower stuffing are filled in the lower stuffing box, and a lower stuffing gland is arranged at the bottom of the lower stuffing box; a protection sleeve is fixed and tightened at the periphery of the bottom of the valve body through threads. The top-assembling type wedge type ball valve ball body support shaft adjusting device has beneficial effects that the valve is avoided from leakage due to valve seat abrasion; the ball valve seal is guaranteed, the valve is easy and convenient to open and close, and meanwhile, the valve seat abrasion is reduced, and the service life of the valve can be improved; the service life of the valve is greatly improved.
Description
Technical field
The present invention relates to a kind of controlling device of upper dress formula wedge-type ball for ball valve back shaft, it not only can down lifting the ball but also can upwards head a ball, thus made spheroid be adjusted to correct position, made ball valve switch light, more be conducive to the sealing of valve, ensure the reliable and long service life of valve.
Background technique
At present, China is in the PTA industry High Speed Construction phase, and the production domesticization of some the special inlet valves on PTA device is also imperative.Special valve is divided into two kinds: a kind of is the valve (as dual phase steel, Hastelloy, monel metal and titanium alloy etc.) of special material, and another kind is the valve (as blowing angle valve, upper dress formula wedge-type ball valve etc.) of unique construction.Thus, should constantly develop at present, explore new material, new structure, seize the opportunity, aim at structure in the world most advanced, the most guaranteed ball-valve structure form of quality, be combined into ease to contain, Hui Sheng, Jiaxing petrochemical industry, Far East petrochemical industry, rainbow port petrochemical industry, the projects such as Jiangyin Chinese nation petrochemical industry and Yadong, Shanghai petrochemical industry produced, the ball valve specification of maintenance, parameter, often complain 1 year will stop due to a lot of producer and carry out full maintenance twice, the cost of labour caused, material cost, construction cost is very large, thus, in the urgent need to having the valve of better structure to ensure the cycle more grown, in view of the above circumstances, need the upper dress formula wedge-type ball valve of development, be promote extraordinary ball valve production domesticization needs, also be the best opportunity of poppet manufacturing industry integral level.
Therefore, for above aspect, need effectively to innovate prior art.
Summary of the invention
For above defect, the invention provides a kind of controlling device of upper dress formula wedge-type ball for ball valve back shaft, it not only can down lifting the ball but also can upwards head a ball, thus make spheroid be adjusted to correct position, make ball valve switch light, more be conducive to the sealing of valve, guarantee the reliable and long service life of valve, to solve many deficiencies of prior art.
For achieving the above object, the present invention is by the following technical solutions:
A kind of controlling device of upper dress formula wedge-type ball for ball valve back shaft, comprise spheroid, support adjusting axle, described support adjusting axle is arranged in the inside groove of spheroid bottom, this supports adjusting axle outer race upper valve rod gland also makes its and spheroid tighten by spanner, and this is joined spheroid and is connected by lock screw I and valve rod gland and is integrated; Meanwhile, spheroid, support adjusting axle and valve rod gland are installed in valve body together, O-ring seals I is set between support adjusting axle and the valve body of outside;
Arrange lower stuffing box in support adjusting axle bottom and arrange O-ring seals II at lower stuffing box outward edge, lower stuffing box is threaded connection to be screwed in and supports on adjusting axle; Described valve body is fixed as one by lock screw II and lower stuffing box; Packing seat under loading between lower stuffing box and support adjusting axle, filler under the many groups of stuffing box loading under this, arranges lower Gland bottom lower stuffing box and this lower Gland is enclosed within support adjusting axle; Described support adjusting axle is by lock screw III and lower Gland one, and protecting cover is fixedly tightened by screw thread in described body base periphery.
Described support adjusting axle lower end is with adjustment spanner place.
When just using, because valve seat was not worn, now when medium power and the acting in conjunction of spheroid self gravitation at valve seat, now the torque ratio of switching ball is comparatively large, not easily during switch valve; First, back out protecting cover, unclamp lock screw III with special inner hexagon spanner, support adjusting axle and lower Gland are opened; Secondly, use shfting wrench clamping brace adjusting axle end flat horizontal, twisting shfting wrench, makes support adjusting axle move upward, pushes up to spheroid, till being transferred to correct position (ball valve can seal, and opens light again); Subsequently, then compress lower Gland with shfting wrench, and with inner hexagon spanner, lock screw III is tightened, till support adjusting axle and lower Gland integrally can not being loosened can not come off; Finally, protecting cover is taken out, is threaded connection and is screwed in valve body bottom.
The beneficial effect of the controlling device of upper dress formula wedge-type ball for ball valve back shaft of the present invention is:
(1) the surface of contact of the valve body of upper-mounting type ball valve and valve seat, spheroid is designed in an angle (being generally 3 ~ 5 °), after making spheroid proceed to valve pocket, have the trend moved downward under gravity always; Simultaneously, large piston action is subject to above spheroid, make spheroid all be subject to a downward medium power effect except self gravity always, even if ball valve valve seat place in switching process has wearing and tearing also to have not big harm, now, medium power oppresses spheroid always the trend moved downward, and makes the valve seat worn and torn obtain auto-compensation timely, thus ensures that valve because of the prooving of valve seat, leakage phenomenon can not occur;
(2) simultaneously, in spheroid envisaged underneath support/controlling device, when ball valve just uses, because valve seat was not worn, now when medium power and the acting in conjunction of spheroid self gravitation at valve seat, obviously, now the torque ratio of switching ball is comparatively large, not easily switch valve, but after having had support/controlling device, upwards to head a ball body by back shaft, make spheroid rise to suitable position, can ball valve sealing be ensured like this, make again valve switch light, reduce the wearing and tearing of valve seat simultaneously, also can improve the working life of valve;
(3) after ball valve uses a period of time, along with the continuous wearing and tearing of valve seat and the reduction gradually of medium power, when can not make valve seal, also by regulating the support/controlling device below spheroid to make spheroid move down, increase the surface of contact of spheroid and valve seat, and then ensure the sealing of valve, also greatly improve the working life of valve simultaneously.
Accompanying drawing explanation
With reference to the accompanying drawings the present invention is described in further detail below.
Fig. 1 is the structural representation of the controlling device of upper dress formula wedge-type ball for ball valve back shaft described in the embodiment of the present invention;
Fig. 2 is the 1A enlarged schematic partial view of Fig. 1.
In figure:
1, spheroid; 2, adjusting axle is supported; 3, valve rod gland; 4, lock screw I; 5, self oiling bearing; 6, O-ring seals I; 7, lower stuffing box; 8, O-ring seals II; 9, lock screw II; 10, lower Packing seat; 11, lower filler; 12, lower Gland; 13, lock screw III; 14, protecting cover; 15, valve body; 16, spanner place is regulated.
Embodiment
As shown in Figure 1-2, the controlling device of the upper dress formula wedge-type ball for ball valve back shaft described in the embodiment of the present invention, comprise spheroid 1, support adjusting axle 2, described support adjusting axle 2 is arranged in the inside groove of spheroid 1 bottom, this supports adjusting axle 2 outer race upper valve rod gland 3 also makes its and spheroid 1 tighten by special spanner, and this is joined spheroid 1 and is connected by lock screw I 4 and valve rod gland 3 and is integrated and can not departs from; Meanwhile, spheroid 1, support adjusting axle 2 and valve rod gland 3 are installed in valve body 15 together, O-ring seals I 6 is set between support adjusting axle 2 and the valve body 15 of outside.
Correspondingly, lower stuffing box 7 is set in support adjusting axle 2 bottom and O-ring seals II 8 is set at lower stuffing box 7 outward edge, lower stuffing box 7 is screwed in by the connection of special spanner matching thread and supports on adjusting axle 2, namely load in valve body 15, when being housed to specified position, described valve body 15 is fixed as one by lock screw II 9 and lower stuffing box 7 and can not loosens and can not come off; Then, Packing seat 10 under loading between lower stuffing box 7 and support adjusting axle 2, after flattening, this lower stuffing box 7 loads the lower filler 11 of many groups, after being housed to, arranges lower Gland 12 and this lower Gland 12 is enclosed within and supports on adjusting axle 2 bottom lower stuffing box 7, use shfting wrench that lower Gland 12 is threaded with valve body 15, it is pressed into tightly in valve body 15, again lower filler 11 is compressed, prevent dielectric leakage; Finally, described support adjusting axle 2 can not be loosened can not be come off by lock screw III 13 and lower Gland 12 one.
Correspondingly, described valve body 15 bottom periphery fixedly tightens protecting cover 14 by screw thread, breaks regulating device component to prevent other people misoperation and other reasons;
In addition, described support adjusting axle 2 lower end is with adjustment spanner place 16, and spheroid 1 periphery arranges self oiling bearing 5.
Above, the controlling device of the upper dress formula wedge-type ball for ball valve back shaft described in the embodiment of the present invention, when upper dress formula wedge-type ball valve just uses, because valve seat was not worn, now when medium power and the acting in conjunction of spheroid self gravitation at valve seat, now the torque ratio of switching ball is comparatively large, not easily during switch valve; First, back out protecting cover, unclamp lock screw III with special inner hexagon spanner, support adjusting axle and lower Gland are opened; Secondly, use shfting wrench clamping brace adjusting axle end flat horizontal, twisting shfting wrench, makes support adjusting axle move upward, pushes up to spheroid, till being transferred to correct position (ball valve can seal, and opens light again); Subsequently, then compress lower Gland with shfting wrench, and with inner hexagon spanner, lock screw III is tightened, till support adjusting axle and lower Gland integrally can not being loosened can not come off; Finally, protecting cover is taken out, is threaded connection and is screwed in valve body bottom, prevent other people misoperation and other reasons from breaking regulating device component.
When after a period of time that ball valve uses, along with the continuous wearing and tearing of valve seat and the reduction gradually of medium force, when can not make valve seal, also spheroid can be moved down by regulating the support/controlling device below spheroid, increase the frictional force of spheroid and valve seat, and then ensure the sealing of valve, also substantially increase the working life of valve simultaneously; First, back out protecting cover, unclamp lock screw III with special inner hexagon spanner, support adjusting axle and lower Gland are unclamped; Secondly, use shfting wrench clamping lower valve rod end flat horizontal, twisting shfting wrench, makes support adjusting axle move downward, hauls spheroid and move downward, till being transferred to correct position (ball valve can seal, and opens light again); Subsequently, then compress lower Gland with shfting wrench, and with inner hexagon spanner, lock screw III is tightened, till support adjusting axle and lower Gland integrally can not being loosened can not come off; Finally, protecting cover is taken out, is threaded connection and is screwed in valve body bottom.
The above-mentioned description to embodiment can understand and apply this case technology for the ease of those skilled in the art, person skilled in the art obviously can make various amendment to these examples easily, and General Principle described herein is applied in other embodiment and need not through performing creative labour.Therefore, this case is not limited to above embodiment, and those skilled in the art is according to the announcement of this case, and the improvement made for this case and amendment all should in the protection domains of this case.
Claims (3)
1. a controlling device for upper dress formula wedge-type ball for ball valve back shaft, comprises spheroid, supports adjusting axle, it is characterized in that:
Described support adjusting axle is arranged in the inside groove of spheroid bottom, and this supports adjusting axle outer race upper valve rod gland also makes its and spheroid tighten by spanner, and this is joined spheroid and is connected by lock screw I and valve rod gland and is integrated; Meanwhile, spheroid, support adjusting axle and valve rod gland are installed in valve body together, O-ring seals I is set between support adjusting axle and the valve body of outside;
Arrange lower stuffing box in support adjusting axle bottom and arrange O-ring seals II at lower stuffing box outward edge, lower stuffing box is threaded connection to be screwed in and supports on adjusting axle; Described valve body is fixed as one by lock screw II and lower stuffing box; Packing seat under loading between lower stuffing box and support adjusting axle, filler under the many groups of stuffing box loading under this, arranges lower Gland bottom lower stuffing box and this lower Gland is enclosed within support adjusting axle; Described support adjusting axle is by lock screw III and lower Gland one, and protecting cover is fixedly tightened by screw thread in described body base periphery.
2. the controlling device of upper dress formula wedge-type ball for ball valve back shaft according to claim 1, is characterized in that: described support adjusting axle lower end is with adjustment spanner place.
3. the controlling device of upper dress formula wedge-type ball for ball valve back shaft according to claim 1, it is characterized in that: when just using, because valve seat was not worn, now when medium power and the acting in conjunction of spheroid self gravitation at valve seat, now the torque ratio of switching ball is comparatively large, not easily during switch valve; First, back out protecting cover, unclamp lock screw III with special inner hexagon spanner, support adjusting axle and lower Gland are opened; Secondly, use shfting wrench clamping brace adjusting axle end flat horizontal, twisting shfting wrench, makes support adjusting axle move upward, pushes up to spheroid, till being transferred to correct position (ball valve can seal, and opens light again); Subsequently, then compress lower Gland with shfting wrench, and with inner hexagon spanner, lock screw III is tightened, till support adjusting axle and lower Gland integrally can not being loosened can not come off; Finally, protecting cover is taken out, is threaded connection and is screwed in valve body bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510022493.3A CN104565426A (en) | 2015-01-17 | 2015-01-17 | Top-assembling type wedge type ball valve ball body support shaft adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510022493.3A CN104565426A (en) | 2015-01-17 | 2015-01-17 | Top-assembling type wedge type ball valve ball body support shaft adjusting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104565426A true CN104565426A (en) | 2015-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510022493.3A Pending CN104565426A (en) | 2015-01-17 | 2015-01-17 | Top-assembling type wedge type ball valve ball body support shaft adjusting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104565426A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4557286A (en) * | 1982-12-22 | 1985-12-10 | Kitz Corporation | Ball valve with emergency sealing device |
| CN2349412Y (en) * | 1997-11-07 | 1999-11-17 | 启东市冶金机械厂 | Ball valve for pulverized coal jetting |
| CN101038038A (en) * | 2007-04-20 | 2007-09-19 | 张长宗 | Hard sealing ball valve |
| CN101865303A (en) * | 2010-06-13 | 2010-10-20 | 无锡智能自控工程有限公司 | Valve ball mandrel device |
-
2015
- 2015-01-17 CN CN201510022493.3A patent/CN104565426A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4557286A (en) * | 1982-12-22 | 1985-12-10 | Kitz Corporation | Ball valve with emergency sealing device |
| CN2349412Y (en) * | 1997-11-07 | 1999-11-17 | 启东市冶金机械厂 | Ball valve for pulverized coal jetting |
| CN101038038A (en) * | 2007-04-20 | 2007-09-19 | 张长宗 | Hard sealing ball valve |
| CN101865303A (en) * | 2010-06-13 | 2010-10-20 | 无锡智能自控工程有限公司 | Valve ball mandrel device |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
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Application publication date: 20150429 |