CN206072406U - A kind of pressure adaptive pipeline ball-valve of valve rod three-level sealed high-voltage resistant - Google Patents
A kind of pressure adaptive pipeline ball-valve of valve rod three-level sealed high-voltage resistant Download PDFInfo
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- CN206072406U CN206072406U CN201620961034.1U CN201620961034U CN206072406U CN 206072406 U CN206072406 U CN 206072406U CN 201620961034 U CN201620961034 U CN 201620961034U CN 206072406 U CN206072406 U CN 206072406U
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Abstract
This utility model is related to a kind of pressure adaptive pipeline ball-valve of valve rod three-level sealed high-voltage resistant, including valve body, the right and left of valve body is provided with flange, the centre of valve body is provided with spheroid, the top of valve body is provided with valve rod, the bottom of valve body is provided with blowoff valve, the first fixed plate and the second fixed plate are provided between two flanges, the first anti-friction bearing and the first thrust bearing are provided between first fixed plate and spheroid, the second anti-friction bearing and the second thrust bearing are provided between second fixed plate and spheroid, the outside of valve rod is provided with key, the top of valve rod is provided with adpting flange, pass through the second screw below adpting flange and the second pin is provided with gland, the top of valve body is provided with hanger by screw bolt and nut, the top of valve body is provided with the first pin, sell to limit the first fixed plate and the second fixed plate by the 3rd on valve body；Which solves the problems, such as that under environment under high pressure O-ring is easily damaged leakage, keeps good sealing property, it is to avoid valve rod extends the service life of valve rod because of friction is produced too early failure；Reduce the use cost of automatic valve.
Description
Technical field
This utility model belongs to pipeline valve technical field, specifically related to a kind of pressure of valve rod three-level sealed high-voltage resistant
Self adaptation pipeline ball-valve.
Background technology
At present, each valve plant for pipeline valve, its old stuffing-box part is made up of gland and adpting flange more；Which adopts
Gland is compressing valve rod as a kind of safe design, in order to prevent valve rod from externally spraying under intrinsic pressure effect；Which is to valve
Sealing at bar employs the design of valve rod O-ring and carrys out prevent leakage；Which adopts valve in gland, adpting flange and valve rod junction
Bar fire prevention pad, the pad can play sealing function when O-ring fails, and when being primarily adapted for use in fire generation, prevent
The leakage of valve inner；But three larger shortcomings are designed with using this：（1）Valve rod sprays：Due to misoperation or
When the screw that line connects between gland and valve body when maintenance unclamps, once at this time the pressure of the interior accumulation of valve pocket crosses senior general
Valve rod can be caused to spray valve body, this can cause the liquid in valve body or gas to spray the valve pocket of valve body, so as to cause security incident
Generation.（2）As valve rod O-ring generally adopts quality of rubber materials, the intrinsic characteristic of rubber to be exactly unable to withstanding caustic medium,
So when Korrosionsmedium is run into, valve rod O-ring is extremely easily to be corroded and fail；（3）Due between gland and valve rod
Using the design of valve rod O-ring, this design valve rod O-ring when high pressure or supertension is run into is extremely easily squeezed
Compressive strain is so as to losing the performance of sealing.
Patent No. " ZL201420403551.8 ", notification number be " CN203979480U ", entitled " valve rod self sealss ball
The Chinese utility model patent of valve ", discloses a kind of valve rod self sealss ball valve, and valve rod is provided with external screw thread, described filler gland
It is set on valve rod, and the external screw thread by nut with valve rod coordinates, and is fixed gland.Although its compact conformation,
It is which equally exists the problem that the above-mentioned O-ring under environment under high pressure is easily damaged leakage.
Patent No. " ZL200920277738.7 ", notification number be " CN201627955U ", a kind of entitled " safety lever
The Chinese utility model patent of high-temperature and high-pressure wearable hard seal ball valve ", discloses a kind of safety lever high-temperature and high-pressure wearable firmly close
Blocking valve, including：With standoff valve body, spheroid, valve seat, the valve rod with convex shoulder, sliding bearing, driving sleeve, execution machine
Structure (handle).The support connected between valve body and actuator is and valve body；Ball-valve valve rod top is provided with convex shoulder；Valve rod
One sliding bearing is set between convex shoulder and valve body support；Valve body support blocks sliding bearing, and sliding bearing blocks valve rod convex shoulder, with
Prevent valve rod from flying out, reduce valve opening and closing moment of torsion.Although its compact conformation, which equally exists the above-mentioned O under environment under high pressure
Type circle is easily damaged the problem of leakage.
For this reason, it may be necessary to a kind of pressure adaptive pipeline ball-valve of valve rod three-level sealed high-voltage resistant, overcomes prior art to be deposited
Disadvantages mentioned above so as to solve the problems, such as that under environment under high pressure O-ring is easily damaged leakage, keep good sealing property,
Avoid valve rod because of friction is produced too early failure, extend the service life of valve rod；Reduce the use cost of automatic valve.
Utility model content
The purpose of this utility model is to provide a kind of pressure adaptive pipeline ball-valve of valve rod three-level sealed high-voltage resistant, gram
The disadvantages mentioned above existing for prior art is taken, solves the problems, such as that O-ring is easily damaged leakage under environment under high pressure, keeps good
Sealing property, it is to avoid valve rod extends the service life of valve rod because of friction is produced too early failure；Reduce automatic valve use into
This.
For achieving the above object, this utility model provides a kind of pressure adaptive pipeline ball of valve rod three-level sealed high-voltage resistant
Valve, including valve body, the left and right two ends of valve body are equipped with flange, and flange and valve body centre is provided with switch member spheroid, valve body it is upper
Portion is provided with valve rod, and the bottom of valve body is provided with blowoff valve, and the first fixed plate and the second fixed plate are provided between two flanges, and first is solid
The first spheroid bearing and the first spheroid thrust bearing are provided between fixed board and spheroid, are equally set between the second fixed plate and spheroid
The outside for having the first spheroid bearing and the second spheroid thrust bearing, valve rod is provided with key, and the top of valve rod is provided with adpting flange, connection
With gland by being integrated below by the second screw and the second pin connection, valve body is connected by stud and nut flange with flange
Together, while appropriate location is provided with hanger between stud and nut, the top of valve body is provided with the first pin connection positioning mode
Orchid, the displacement for selling to limit the first fixed plate and the second fixed plate by the 3rd on valve body, valve body are provided with bleeder valve；On valve rod
Anti-static device is provided with, anti-static device is provided with antistatic spheroid；Valve body is provided with emergency sealing grease filling system, by check-valves
Grease pouring valve composition；The second stem bearing, the second stem bearing and the first stem shaft are provided with by the first screw on adpting flange
Valve rod fire prevention pad, valve rod O-ring, gland fire prevention pad, gland O-ring and U-shaped circle are provided between holding, under the first stem bearing
Face is provided with valve rod thrust bearing；Valve body is provided with flange fire prevention pad and flange O-ring；End flanges are provided with spring, and spring sets
Put in spring base, spring base is provided with back-up ring, after spring base is arranged on fixing ball valve seat, it is O-shaped that fixing ball valve seat is provided with valve seat
Circle, valve seat are arranged on fixing ball valve seat, and fixing ball valve seat is provided with valve seat fire prevention pad.
In above scheme preferably, valve rod is set to cylindrical bar.
In any of the above scheme preferably, antistatic spheroid is set to spherical.
In any of the above scheme preferably, the first fixed plate is set to tabular.
In any of the above scheme preferably, the second fixed plate is set to tabular.
In any of the above scheme preferably, stud is set to cylindrical key.
In any of the above scheme preferably, nut is set to hex nut.
In any of the above scheme preferably, the first pin is set to cylinder shank.
In any of the above scheme preferably, the first screw is set to cap screw.
In any of the above scheme preferably, the second screw is set to cap screw.
Compared with prior art, this utility model has advantages below：
This utility model provides a kind of pressure adaptive pipeline ball-valve of valve rod three-level sealed high-voltage resistant, overcomes existing skill
Disadvantages mentioned above existing for art so as to solve the problems, such as that O-ring is easily damaged leakage under environment under high pressure, keeps good sealing
Performance, it is to avoid valve rod extends the service life of valve rod because of friction is produced too early failure；Reduce the use cost of automatic valve.
Description of the drawings
Fig. 1 is the structural representation of the pressure adaptive pipeline ball-valve according to valve rod three-level sealed high-voltage resistant of the present utility model
Figure；
Fig. 2 is the pressure adaptive pipeline ball-valve according to the valve rod three-level sealed high-voltage resistant of the present utility model shown in Fig. 1
Bleeder valve structural representation；
Fig. 3 is the pressure adaptive pipeline ball-valve according to the valve rod three-level sealed high-voltage resistant of the present utility model shown in Fig. 1
Anti-static device structural representation；
Fig. 4 is the pressure adaptive pipeline ball-valve according to the valve rod three-level sealed high-voltage resistant of the present utility model shown in Fig. 1
Adpting flange top structure schematic diagram；
Fig. 5 is the pressure adaptive pipeline ball-valve according to the valve rod three-level sealed high-voltage resistant of the present utility model shown in Fig. 1
Grease pouring valve structural representation；
Fig. 6 is the pressure adaptive pipeline ball-valve according to the valve rod three-level sealed high-voltage resistant of the present utility model shown in Fig. 1
A portions detailed annotation figure；
Fig. 7 is the pressure adaptive pipeline ball-valve according to the valve rod three-level sealed high-voltage resistant of the present utility model shown in Fig. 1
A portions bearing arrangement schematic diagram；
Fig. 8 is the pressure adaptive pipeline ball-valve according to the valve rod three-level sealed high-voltage resistant of the present utility model shown in Fig. 1
B portions detailed annotation figure；
Fig. 9 is the pressure adaptive pipeline ball-valve according to the valve rod three-level sealed high-voltage resistant of the present utility model shown in Fig. 1
C portions detailed annotation figure；
Figure 10 is the pressure adaptive pipeline ball-valve according to the valve rod three-level sealed high-voltage resistant of the present utility model shown in Fig. 1
Valve seat greasing structure chart.
In figure, 1 is valve body, and 2 is flange, and 3 is spheroid, and 4 is valve rod, and 5 is fixing ball valve seat, and 6 is adpting flange, and 7 are pressure
Lid, 8 is spring base, and 9 is antistatic spheroid, and 10 is key, and 11 is bleeder valve, and 12 is blowoff valve, and 13 is grease pouring valve, and 14 is non-return
Valve, 15 is the first fixed plate, and 16 is the second fixed plate, and 17 is stud, and 18 is nut, and 19 is the first pin, and 20 is the first screw, 21
For the second screw, 22 is the second pin, and 23 is the 3rd pin, and 24 is that flange is prevented fires pad, and 25 is flange O-ring, and 26 is U-shaped circle, 27
For valve rod fire prevention pad, 28 is valve rod O-ring, and 29 is valve seat O-ring, and 30 is valve seat fire prevention pad, and 31 is valve seat, and 32 is gear
Circle, 33 is gland fire prevention pad, and 34 is gland O-ring, and 35 is the first stem bearing, and 36 is valve rod thrust bearing, and 37 is second
Stem bearing, 38 is the first spheroid bearing, and 39 is the first spheroid thrust bearing, and 40 is the second spheroid thrust bearing, and 41 is second
Spheroid bearing, 42 is spring, and 43 is anti-static device, and 44 is hanger.
Specific embodiment
In order to more fully understand this utility model, this utility model is explained in detail with reference to specific embodiment.
It is clear that it is new without departing from this practicality of appended claims with retrofiting that different modifications can be carried out to this utility model
Type broader spirit and scope.Therefore, following examples have the exemplary implication without restriction.
Embodiment:
A kind of pressure adaptive pipeline ball-valve of valve rod three-level sealed high-voltage resistant, as shown in Figures 1 to 10, including valve body 1,
The right and left of valve body 1 is provided with the centre of flange 2, flange 2 and valve body 1 and is provided with switch member spheroid 3, and the top of valve body 1 is provided with valve
Bar 4, the bottom of valve body 1 are provided with blowoff valve 12, are provided with the first fixed plate 15 and the second fixed plate 16 between two flanges 2, and first
The first spheroid bearing 38 and the first spheroid thrust bearing 39 are provided between fixed plate 15 and spheroid 3, equally in the second fixed plate 16
The first spheroid bearing 41 and the second spheroid thrust bearing 40 are provided with and spheroid 3 between, the outside of valve rod 4 is provided with key 10, valve rod 4
Top is provided with adpting flange 6, passes through the second screw 21 and the second pin 22 is provided with gland 7, while in stud below adpting flange 6
Between 17 and nut 18, appropriate location is provided with hanger 44, and the top of valve body 1 is provided with the connection of the first pin 19 locating flange 2, valve body 1
On by the 3rd pin 23 limiting the first fixed plate（15）With the second fixed plate（16）Displacement, valve body 1 is provided with bleeder valve 11；
Valve body 1 is provided with anti-static device 43, and anti-static device 43 is provided with antistatic spheroid 9；Valve body 1 is provided with urgent grease filling system
It is made up of the grease pouring valve 13 of check-valves 14；Second stem bearing 37, the second stem bearing are provided with by the first screw 20 on valve body 1
37 and first are provided with valve rod fire prevention pad 27, valve rod O-ring 28, gland fire prevention pad 33, gland O-ring between stem bearing 35
34 and it is U-shaped circle 26, the first stem bearing 35 is provided with valve rod thrust bearing 36；Valve body 1 is provided with end flanges fire prevention pad 24 and method
Blue O-ring 25；Valve body 1 is provided with spring 42, and spring 42 is arranged in spring base 8, and spring base 8 is provided with back-up ring 32, and spring base 8 sets
Put on fixing ball valve seat 5, fixing ball valve seat 5 is provided with valve seat O-ring 29, valve seat 31 is arranged on fixing ball valve seat 5, it is fixed
Ball valve seat 5 is provided with valve seat fire prevention pad 30.
In the above-described embodiments, valve rod 4 is set to cylindrical bar.Antistatic spheroid 9 is set to spherical.First fixed plate 15 is set to
Tabular.Second fixed plate 16 is set to tabular.Bolt 17 is set to cylindrical key.Nut 18 is set to hex nut.First pin
19 are set to cylinder shank.First screw 20 is set to cap screw.Second screw 21 is set to cap screw.
The pressure adaptive pipeline ball-valve of valve rod three-level sealed high-voltage resistant of the present utility model, valve rod 4 arrange valve rod boss,
After substantially solving the screw on the connection sequence number of gland 7 valve body 1 is unclamped, valve rod 4 will not be because of without compression
Spray valve pocket, it is to avoid safety occurs and tried；Between valve body 1 and valve rod 4 in addition to the Seal Design with valve rod O-ring 28,
The Seal Design of U-shaped circle 26, as one valve rod O-ring 28 and a U-shaped circle 26 are additionally provided with, so as to have good sealing
Energy；The inside of U-shaped circle 26 is provided with spring energy-storage area, and in the case of low pressure, the inner spring inside U-shaped circle 26 can give U-shaped circle
The sealing force of 26 two sides pretensions, plays a part of initial sealing；When pressure gradually rises, the structure of U-shaped circle 26 can be with profit
The seal pressure of itself is improved with the pressure of liquid or gas, in other words, the two sides of U-shaped circle 26 can be with pressure rise
Seal pressure is improved, self sealss performance is remarkable；Which solves the problem that the O-ring under environment under high pressure is easily damaged leakage.This
Also there is utility model low torque to operate abrasion-proof structure:Valve rod thrust bearing 36 and first is increased between valve body 1 and valve rod 4
Stem bearing 35, while the second stem bearing 37 is increased between adpting flange 6 and valve rod 4；These three bearings can play as
Lower effect:（1）As bearing has isolated the friction of direct metal to metal between 1/ adpting flange 6 of valve body and valve rod 4, it is to avoid
Valve rod 4 extends the service life of valve rod 4 because of friction is produced too early failure；（2）Skill of the bearing inner wall using spraying PTFE
Art, such valve operation moment of torsion under differential pressure, such that it is able to the driving means using little No., directly reduce automatic valve (valve
Door+driving means) use cost；（3）Bearing and valve rod 4 coordinate so that the 4 relative relative accuracy with spheroid of valve rod is carried
Height, is unlikely to produce the excessive skew of valve rod 4 and spheroid, can so improve the service life of spheroid and valve seat 31, while also
The sealing property of valve can be improved.
Although being below described to various preferred implementations of the present utility model and feature, without departing from
On the premise of the purpose of this utility model and objective, those of ordinary skill in the art can make many changes to this utility model
Change, supplement, change and delete.Above in association with the detailed description that specific embodiment of the utility model is done, it is not to this practicality
New restriction.It is every according to technical spirit of the present utility model to any simple modification made for any of the above embodiments, still belong to
In the scope of technical solutions of the utility model.
Claims (10)
1. a kind of pressure adaptive pipeline ball-valve of valve rod three-level sealed high-voltage resistant, including valve body（1）, it is characterised in that：Valve body
（1）Left and right two ends be equipped with flange（2）, flange（2）And valve body（1）Centre be provided with switch member spheroid（3）, valve body（1）'s
Top is provided with valve rod（4）, valve body（1）Bottom be provided with blowoff valve（12）, two flanges（2）Between be provided with the first fixed plate（15）
With the second fixed plate（16）, the first fixed plate（15）And spheroid（3）Between be provided with the first spheroid bearing（38）Stop with the first spheroid
Thrust bearing（39）, equally in the second fixed plate（16）And spheroid（3）Between be provided with the first spheroid bearing（41）Stop with the second spheroid
Thrust bearing（40）, valve rod（4）Outside be provided with key（10）, valve rod（4）Top be provided with adpting flange（6）, adpting flange（6）With
Gland（7）By below by the second screw（21）With the second pin（22）Connect as one, valve body（1）With flange（2）By spiral shell
Post（17）And nut（18）Link together, while in stud（17）And nut（18）Between appropriate location be provided with hanger（44）,
Valve body（1）Top be provided with the first pin（19）Connection locating flange（2）, valve body（1）It is upper to sell by the 3rd（23）To limit
One fixed plate（15）With the second fixed plate（16）Displacement, valve body（1）It is provided with bleeder valve（11）；Valve rod（4）It is provided with anti-quiet
Electric installation（43）, anti-static device（43）It is provided with antistatic spheroid（9）；Valve body（1）Emergency sealing grease filling system is provided with, by
Check-valves（14）Grease pouring valve（13）Composition；Adpting flange（6）It is upper to pass through the first screw（20）It is provided with the second stem bearing（37）,
Second stem bearing（37）With the first stem bearing（35）Between be provided with valve rod fire prevention pad（27）, valve rod O-ring（28）, gland
Fire prevention pad（33）, gland O-ring（34）With U-shaped circle（26）, the first stem bearing（35）Valve rod thrust bearing is arranged below
（36）；Valve body（1）It is provided with flange fire prevention pad（24）With flange O-ring（25）；End flanges（2）It is provided with spring（42）, bullet
Spring（42）It is arranged on spring base（8）In, spring base（8）It is provided with back-up ring（32）, spring base（8）It is arranged on fixing ball valve seat（5）Afterwards,
Fixing ball valve seat（5）It is provided with valve seat O-ring（29）, valve seat（31）It is arranged on fixing ball valve seat（5）On, fixing ball valve seat（5）
It is provided with valve seat fire prevention pad（30）.
2. the pressure adaptive pipeline ball-valve of valve rod three-level sealed high-voltage resistant as claimed in claim 1, it is characterised in that：Valve rod
（4）It is set to cylindrical bar.
3. the pressure adaptive pipeline ball-valve of valve rod three-level sealed high-voltage resistant as claimed in claim 2, it is characterised in that：It is anti-quiet
Electric spheroid（9）It is set to spherical.
4. the pressure adaptive pipeline ball-valve of valve rod three-level sealed high-voltage resistant as claimed in claim 3, it is characterised in that：First
Fixed plate（15）It is set to tabular.
5. the pressure adaptive pipeline ball-valve of valve rod three-level sealed high-voltage resistant as claimed in claim 4, it is characterised in that：Second
Fixed plate（16）It is set to tabular.
6. the pressure adaptive pipeline ball-valve of valve rod three-level sealed high-voltage resistant as claimed in claim 5, it is characterised in that：Stud
（17）It is set to cylindrical key.
7. the pressure adaptive pipeline ball-valve of valve rod three-level sealed high-voltage resistant as claimed in claim 6, it is characterised in that：Nut
（18）It is set to hex nut.
8. the pressure adaptive pipeline ball-valve of valve rod three-level sealed high-voltage resistant as claimed in claim 7, it is characterised in that：First
Pin（19）It is set to cylinder shank.
9. the pressure adaptive pipeline ball-valve of the valve rod three-level sealed high-voltage resistant as any one of claim 1-8, which is special
Levy and be：First screw（20）It is set to cap screw.
10. the pressure adaptive pipeline ball-valve of valve rod three-level sealed high-voltage resistant as claimed in claim 9, it is characterised in that：The
Two screws（21）It is set to cap screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620961034.1U CN206072406U (en) | 2016-08-27 | 2016-08-27 | A kind of pressure adaptive pipeline ball-valve of valve rod three-level sealed high-voltage resistant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620961034.1U CN206072406U (en) | 2016-08-27 | 2016-08-27 | A kind of pressure adaptive pipeline ball-valve of valve rod three-level sealed high-voltage resistant |
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| Publication Number | Publication Date |
|---|---|
| CN206072406U true CN206072406U (en) | 2017-04-05 |
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ID=58432501
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620961034.1U Active CN206072406U (en) | 2016-08-27 | 2016-08-27 | A kind of pressure adaptive pipeline ball-valve of valve rod three-level sealed high-voltage resistant |
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| Country | Link |
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| CN (1) | CN206072406U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108799498A (en) * | 2017-04-28 | 2018-11-13 | 凯氟隆（厦门）密封件有限公司 | A kind of Novel down-hole tool combinations encapsulation scheme |
| CN108916412A (en) * | 2018-07-06 | 2018-11-30 | 西诺威阀门控制（苏州）有限公司 | The roof-mounted fixing ball valve of heavy caliber double-piston |
| CN109268666A (en) * | 2018-11-29 | 2019-01-25 | 美钻深海能源科技研发（上海）有限公司 | A kind of novel grease pouring device and its grease injection method |
-
2016
- 2016-08-27 CN CN201620961034.1U patent/CN206072406U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108799498A (en) * | 2017-04-28 | 2018-11-13 | 凯氟隆（厦门）密封件有限公司 | A kind of Novel down-hole tool combinations encapsulation scheme |
| CN108916412A (en) * | 2018-07-06 | 2018-11-30 | 西诺威阀门控制（苏州）有限公司 | The roof-mounted fixing ball valve of heavy caliber double-piston |
| CN109268666A (en) * | 2018-11-29 | 2019-01-25 | 美钻深海能源科技研发（上海）有限公司 | A kind of novel grease pouring device and its grease injection method |
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Address after: 610225 No. four, No. 1128, Airport Road, Southwest Economic Development Zone, Chengdu, Sichuan Patentee after: Emerson automation (Sichuan) Co., Ltd. fluid control Address before: 610225 No. four, No. 1128, Airport Road, Southwest Economic Development Zone, Chengdu, Sichuan Patentee before: Valve industry (Sichuan) Co., Ltd. |