CN102954249A - Fixed ball valve structure regulating device - Google Patents
Fixed ball valve structure regulating device Download PDFInfo
- Publication number
- CN102954249A CN102954249A CN 201110243527 CN201110243527A CN102954249A CN 102954249 A CN102954249 A CN 102954249A CN 201110243527 CN201110243527 CN 201110243527 CN 201110243527 A CN201110243527 A CN 201110243527A CN 102954249 A CN102954249 A CN 102954249A
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- valve
- valve body
- spheroid
- ball
- screw bolt
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- 230000001105 regulatory effect Effects 0.000 title abstract description 14
- 238000007789 sealing Methods 0.000 claims abstract description 32
- 230000000694 effects Effects 0.000 abstract description 7
- 238000012423 maintenance Methods 0.000 abstract description 4
- 210000004907 gland Anatomy 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The invention relates to a fixed ball valve structure regulating device. A fixed ball valve comprises a valve body, a ball, a valve stem and a supporting shaft, wherein the ball is arranged in the valve body, the valve stem penetrates through the upper portion of the valve body to be connected with the ball, and the supporting shaft penetrates through the lower portion of the valve body to be connected with the ball. The structure regulating device comprises a bottom cap, a seal cap, a regulating nut and a regulating bolt, wherein the bottom cap is arranged below the supporting shaft and connected with the valve body, the lower end of the regulating bolt is connected with the regulating nut, the upper end of the regulating bolt penetrates through the bottom cap and butted upon the lower end of the supporting shaft, and the seal cap is fixed on the bottom cap through screws. Compared with the prior art, the fixed ball valve structure regulating device has the advantages of rapidness and convenience in maintenance, capability of achieving sealing effect by allowing the ball to match with a valve seat quickly without shutdown, and the like.
Description
Technical field
The present invention relates to a kind of component of fixing ball valve, especially relate to a kind of adjustment constructional device of fixing ball valve.
Background technique
We know that fixedly spherical ball valve is widely used in oil, the chemical industry iron and steel, the every field such as metallurgy and electric power, to fixing spherical ball valve concerning, lower valve stem structure is one of constituent element important in the ball-valve structure, because spheroid fixes by upper and lower valve rod, the weight of whole spheroid is born by lower valve rod fully, fixedly the ball bore is larger, and the weight of spheroid is just larger, and is also just higher to the requirement of lower valve rod so.If the unreasonable structure of lower valve rod can not play support, the fixedly effect of spheroid well, make valve ball depart from the tram, namely can not cooperate closely with valve seat, that has just lost sealing effect, causes dielectric leakage.So the structure of lower valve rod is a fixing important part in the spherical ball valve structure, will directly have influence on the sealing effect of ball valve.
The rotary part design attitude of tradition " lower valve rod " is unreasonable.(seeing figure three parts 36 places) traditional fixing ball valve comprises steel ball 31, lower valve rod 32, sealing O type circle 33, valve body 34, screw 35, adjusts pad 36, bottom cover 37.Because the weight of steel ball 31 acts directly on the adjustment pad 36 of lower valve rod 32 lower ends.Be that rotary part is large plane and its surface of contact is the plane, thereby cause that to open and close torsion large, and if when fixedly ball has the height off normal, must remove again the bottom cover 37 of lower valve rod after, again install additional or change adjust pad 36 adjust fixedly ball height tram, so also spended time, especially when pipeline long-term operation use is worn and torn, just can't adjust.But because the needs of enterprise and technique, the valve on the pipeline can not be accomplished to stop mostly at once, can't carry out any on-the-spot on-call maintenance measure, thereby brings larger hidden danger for the safe operation of pipeline.
Summary of the invention
Purpose of the present invention is exactly to provide a kind of maintenance quick and easy in order to overcome the defective that above-mentioned prior art exists, and need not to shut down just to make that spheroid is rapid and valve seat is identical, reaches the adjustment constructional device of the fixing ball valve of sealing.
Purpose of the present invention can be achieved through the following technical solutions: a kind of adjustment constructional device of fixing ball valve, described fixing ball valve comprises valve body, spheroid, valve rod and back shaft, described spheroid is located in the valve body, the top that valve rod passes valve body is connected with spheroid, back shaft passes valve body lower portion and is connected with spheroid, it is characterized in that, this adjustment constructional device comprises bottom, sealing cover, adjusting nut and adjusting double-screw bolt, described bottom is located at the back shaft below, bottom is connected with valve body, and described adjusting double-screw bolt lower end connects adjusting nut, regulates the double-screw bolt upper end and passes bottom, and being connected to the lower end of back shaft, described sealing cover is fixed by screws on the bottom.
Described adjustment constructional device also comprises gasket seal, and the sealing pad is located between sealing cover and the bottom.
Described adjustment constructional device also comprises the bottom pad, and this bottom pad is located between bottom and the valve body.
Compared with prior art, the present invention has the following advantages:
1, when lumen formed pressure reduction, valve seat and spheroid formed slight displacement, and easily pull sealing surface, the phenomenon that valve cavity is leaked in order to improve sealing, can be adjusted by regulating double-screw bolt the position of spheroid, spheroid is moved, and spheroid is rapid and valve seat is identical thereby make, and reaches sealing;
2, maintenance is quick, and is convenient; Can directly under Operation Conditions, keep in repair, need not shut down, not tear open pipeline, also can not affect the normal usage function action;
3, reduce frictional force between back shaft and the spheroid, also driven the moment of valve rod simultaneously, thereby reduced the torque of valve;
If 4, sealing surface adopts very stiff and demanding hard sealing structure, good seal performance is wear-resisting, high temperature resistant.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is for regulating the bolt structure schematic diagram;
Fig. 3 is traditional fixing ball valve structural representation.
1 is valve body among Fig. 2,2 is hexagon socket head cap screw, 3 is bottom, 4 is gasket seal, 5 is adjusting nut, 6 for regulating double-screw bolt, 7 is sealing cover, 8 is screw, 9 is the bottom pad, 10 is back shaft, 11 is the spheroid axle sleeve, 12 is body sealing cushion for cover sheet, 13 are body lid connecting stud, 14 are body lid attaching nut, 15 is valve gap, 16 is spheroid, 17 is sealing pair, 18 is valve seat, 19 is spring, 20 is the spring valve seat, 21 is valve rod, 22 is valve stem sleeve, 23 is Stuffing box, 24 is filler, 25 is pad, 26 is socket head screw, 27 is Gland, 28 is hold-down grid, 29 is support, 30 is nut, 31 is double-screw bolt, 32 is locating stud, 33 is Worm gear case, 34 is nut, 35 is double-screw bolt, 36 is nut, 37 is double-screw bolt.
Embodiment
The present invention is described in detail below in conjunction with the drawings and specific embodiments.
Embodiment
Such as Fig. 1, shown in Figure 2, a kind of adjustment constructional device of fixing ball valve, fixing ball valve comprises valve body 1, hexagon socket head cap screw 2, bottom 3, gasket seal 4, adjusting nut 5, regulate double-screw bolt 6, sealing cover 7, screw 8, bottom pad 9, back shaft 10, spheroid axle sleeve 11, body sealing cushion for cover sheet 12, body lid connecting stud 13, body lid attaching nut 14, valve gap 15, spheroid 16, sealing pair 17, valve seat 18, spring 19, spring valve seat 20, valve rod 21, valve stem sleeve 22, Stuffing box 23, filler 24, pad 25, socket head screw 26, Gland 27, hold-down grid 28, support 29, nut 30, double-screw bolt 31, locating stud 32, Worm gear case 33, nut 34, double-screw bolt 35, nut 36, double-screw bolt valve body 37.Wherein adjusting constructional device comprises bottom 3, sealing cover 7, adjusting nut 5 and regulates double-screw bolt 6.Spheroid 16 is located in the valve body 1, the top that valve rod 21 passes valve body 1 is connected with spheroid 16, back shaft 10 passes valve body 1 bottom and is connected with spheroid 16, bottom 3 is located at back shaft 10 belows, bottom 3 is connected with valve body 1, regulates double-screw bolt 6 lower ends and connects adjusting nut, regulates double-screw bolt 6 upper ends and passes bottom 3, and being connected to the lower end of back shaft 10, sealing cover 7 is fixed on the bottom 3 by screw 8.Adjust constructional device and also comprise gasket seal 4, the sealing pad is located between sealing cover and the bottom.Adjust constructional device and also comprise bottom pad 9, this bottom pad is located between bottom and the valve body.
Spheroid is arranged on valve inner, and the top that valve rod passes valve body is connected with spheroid, and valve rod place cover has Gland, hold-down grid, Gland is positioned on the hold-down grid, be provided with valve seat between valve gap and the spheroid, the bottom that back shaft passes valve body is connected with spheroid, and back shaft has the adjusting double-screw bolt.Be provided with valve bonnet seal ring one and valve base sealing ring two and seating spring between valve gap and the valve seat, wherein, valve gap, valve seat, seat ring one and valve Cuo ring two form a pressure reduction chamber, when lumen formed pressure reduction, seat ring one formed slight displacement with valve collar two, and we can the adjusting double-screw bolt, regulate double-screw bolt by promoting back shaft, back shaft is pushed spheroid to, and spheroid is rapid and valve seat is identical, finally reaches sealing effect.Double-screw bolt is regulated in the position of the adjustable spheroid of this above-mentioned adjusting double-screw bolt, our capable of regulating matches spheroid and valve seat, reaches sealing effect.Fixing ball valve Applicable media: water, gas, oil product, rock gas and acid and alkali corrosion medium.Applicable temperature :-196～350 ℃, applicable pressure: 1.0～10.0MPa, 150～2500LB driving mode: manually, worm gear, pneumatic, electronic, surge etc.This regulates the sealability that double-screw bolt can be adjusted ball sweet wine and valve seat flexibly, increases the working life that prolongs valve.Working principle: when lumen formed pressure reduction, valve seat and valve formed slight displacement, and we can regulate double-screw bolt by promoting back shaft by adjusting adjusting double-screw bolt, and back shaft is pushed spheroid to, and spheroid is rapid and valve seat is identical, finally reaches sealing effect.Also reduce simultaneously the friction between valve rod and the spheroid.
Claims (3)
1. the adjustment constructional device of a fixing ball valve, described fixing ball valve comprises valve body, spheroid, valve rod and back shaft, described spheroid is located in the valve body, the top that valve rod passes valve body is connected with spheroid, back shaft passes valve body lower portion and is connected with spheroid, it is characterized in that, this adjustment constructional device comprises bottom, sealing cover, adjusting nut and adjusting double-screw bolt, described bottom is located at the back shaft below, bottom is connected with valve body, and described adjusting double-screw bolt lower end connects adjusting nut, regulates the double-screw bolt upper end and passes bottom, and being connected to the lower end of back shaft, described sealing cover is fixed by screws on the bottom.
2. the adjustment constructional device of a kind of fixing ball valve according to claim 1 is characterized in that, described adjustment constructional device also comprises gasket seal, and the sealing pad is located between sealing cover and the bottom.
3. the adjustment constructional device of a kind of fixing ball valve according to claim 1 is characterized in that, described adjustment constructional device also comprises the bottom pad, and this bottom pad is located between bottom and the valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110243527 CN102954249A (en) | 2011-08-23 | 2011-08-23 | Fixed ball valve structure regulating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110243527 CN102954249A (en) | 2011-08-23 | 2011-08-23 | Fixed ball valve structure regulating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102954249A true CN102954249A (en) | 2013-03-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110243527 Pending CN102954249A (en) | 2011-08-23 | 2011-08-23 | Fixed ball valve structure regulating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102954249A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103591328A (en) * | 2013-11-20 | 2014-02-19 | 无锡智能自控工程股份有限公司 | Titanium alloy zero-leakage metal sealing quick-cutting ball valve |
| CN103697188A (en) * | 2013-12-31 | 2014-04-02 | 上海凯工阀门有限公司 | Top-mounted type bidirectional sphere valve |
-
2011
- 2011-08-23 CN CN 201110243527 patent/CN102954249A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103591328A (en) * | 2013-11-20 | 2014-02-19 | 无锡智能自控工程股份有限公司 | Titanium alloy zero-leakage metal sealing quick-cutting ball valve |
| CN103591328B (en) * | 2013-11-20 | 2016-02-10 | 无锡智能自控工程股份有限公司 | The fast cut valve of titanium alloy zero-leakage metal sealing |
| CN103697188A (en) * | 2013-12-31 | 2014-04-02 | 上海凯工阀门有限公司 | Top-mounted type bidirectional sphere valve |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130306 |