CN202215817U - Pipeline ball valve with all-welded valve body - Google Patents
Pipeline ball valve with all-welded valve body Download PDFInfo
- Publication number
- CN202215817U CN202215817U CN2011203465799U CN201120346579U CN202215817U CN 202215817 U CN202215817 U CN 202215817U CN 2011203465799 U CN2011203465799 U CN 2011203465799U CN 201120346579 U CN201120346579 U CN 201120346579U CN 202215817 U CN202215817 U CN 202215817U
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- valve
- valve body
- seat
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- seal ring
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- Expired - Lifetime
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- 238000003466 welding Methods 0.000 claims abstract description 31
- 210000004907 gland Anatomy 0.000 claims description 17
- 230000000694 effects Effects 0.000 claims description 8
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 238000007789 sealing Methods 0.000 abstract description 20
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241001347978 Major minor Species 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
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Abstract
The utility model relates to an all-welded valve body pipeline ball valve, a valve cover component of the ball valve is arranged at the upper part of a middle valve body and positioned outside the middle valve body, a lining plate and a ball body are sequentially arranged in the middle valve body, and a valve rod is arranged on the middle valve body after passing through the valve cover component; the left valve body and the right valve body are arranged at two ends of the middle valve body, the lining plate and the ball body, narrow-gap submerged-arc welding grooves are formed in the joint between the middle valve body and the left valve body and the joint between the middle valve body and the right valve body, the left valve body and the right valve body are positioned through positioning pins and connected with the lining plate, a valve seat support ring is arranged between the left valve body and the right valve body and between the ball body and the lining plate, and elastic pieces are arranged on the left valve body and the right. By adopting the utility model, the welding stress is small, the deformation is extremely low, and no hot crack is generated; the valve seat is of an integral structure, so that the volume is reduced; the valve rod has the functions of built-in sealing and external sealing, and the seat is adopted for sealing, so that the sealing performance of the valve is effectively improved, and the service life of the sealing element is prolonged.
Description
Affiliated technical field
The utility model relates to a kind of full welding valve body pipeline ball-valve.
Background technique
The full welding valve body pipeline ball-valve that uses at present, at first its submerged arc welding groove is straight trough shape or V flute profile, is unfavorable for deslagging, steam discharge; Weld seam is prone to produce cinder hole, steam vent, influences the intensity of weld seam, and weld stress is concentrated; The heat affected zone residual stress is big; The thermal distortion of weldment is big, may produce stress crack and shortens working life of valve, and make the valve seal by-product give birth to the gap and can not seal.Secondly, the binary fabricated structure that its valve seat is made up of bracing ring and piston assembly has increased the volume of valve seat and valve body; The 3rd, its valve gap is an overall structure, causes filler or seal ring to change; The 4th, its valve seat only has a sealing surface, and seat back sealing configuration also is to lean on the seal ring of one or one group equal diameters to realize; And " external " also adopted in the sealing of valve rod; These had both influenced the sealability of valve, also made seal ring fragile, had influenced the working life of valve.
Summary of the invention
The purpose of the utility model provides the welding precision height, welding stress is little, welding seam toughness is high, volume is little, a kind of full welding valve body pipeline ball-valve of good seal performance.
The technological scheme that the utility model is taked is: a kind of full welding valve body pipeline ball-valve; Comprise left and right sides valve body, middle valve body, spheroid, valve seat bracing ring, liner plate, bearing unit, elastic component, valve rod and valve gap assembly; It is characterized in that the valve gap assembly be located in valve body top and be arranged in outside the valve body; In the valve body, valve rod was contained on the middle valve body after passing the valve gap assembly during liner plate, spheroid were located at successively; Left and right sides valve body is located at the two ends of middle valve body, liner plate and spheroid; Joining place between middle valve body and the left and right sides valve body has the narrow-clearance submerged arc welding groove; Left and right sides valve body is connected through the locating stud location and with liner plate; Be provided with the valve seat bracing ring between left and right sides valve body and the spheroid, be connected through bearing unit between spheroid and the liner plate, on the valve body of the left and right sides and with the joining place of valve seat bracing ring, be respectively equipped with elastic component.
Described a kind of full welding valve body pipeline ball-valve, the bottom of its narrow-clearance submerged arc welding groove is circular arc, and the radius of its circular arc is 6～10mm, and the oblique angle on both sides is 3～7 °, and groove gap is 12～16mm.
Described a kind of full welding valve body pipeline ball-valve, its valve gap assembly comprises Upper shaft sleeve and gland, and gland is positioned on the Upper shaft sleeve, and valve rod refills on middle valve body after passing gland, Upper shaft sleeve.
Described a kind of full welding valve body pipeline ball-valve, it comprises valve seat primary seal circle and valve seat secondary seal ring, seal ring behind seal ring and the minor diameter seat behind the major diameter seat, and the increase seal ring with double-piston effect; Wherein, valve seat primary seal circle be located at the valve seat bracing ring near on the position of peripheral part and with the sphere joining place of spheroid, the valve seat secondary seal ring be located at the valve seat bracing ring near on the position of interior perimembranous and with the sphere joining place of spheroid; Behind the major diameter seat seal ring be located on the middle cylindrical of valve seat bracing ring and with the joining place of left and right sides valve body; Behind the minor diameter seat seal ring be located on the little cylindrical of valve seat bracing ring and with the joining place of left and right sides valve body, the place, space that in the step surface of the little cylindrical of valve seat bracing ring and the left and right sides with matching valve body, forms between the step surface of circle is provided with the increase seal ring with double-piston effect.
Described a kind of full welding valve body pipeline ball-valve, its some Sealings also comprise valve rod primary seal circle, valve rod secondary seal ring and valve rod master fire proof seal circle, the secondary fire proof seal circle of valve rod; Valve rod primary seal circle be located on the Upper shaft sleeve and with the valve rod joining place, the valve rod secondary seal ring be located on the gland and with the valve rod joining place, valve rod master fire proof seal circle is located between Upper shaft sleeve and the valve body, the secondary fire proof seal circle of valve rod is located between gland and the Upper shaft sleeve.
Adopt the utility model, the one, through the design again of narrow-clearance submerged arc welding groove, and adopt last procedure welding; Welding parameter is low heat input, and stress is little during welding, easily the exhaust deslagging with take off slag; Make welding have extremely low distortion, the root of weld can not produce hot crack; The 2nd, the seal ring that increases makes valve seat be overall structure, has reduced volume; The 3rd, through the setting respectively of Upper shaft sleeve and gland; The built-in sealing of valve rod and the function that the external sealing has concurrently have been realized; The 4th, adopt the sealing of seat back; Can reduce the seal pressure and the valve opening and closing moment of valve seat major-minor sealing surface effectively, improve the valve seal performance, prolong the working life of Sealing.
Description of drawings
Fig. 1 is the cut-away view of the utility model.
Fig. 2 is the enlarged diagram at the ball seal place of the utility model.
Fig. 3 is the enlarged diagram at the valve stem seal place of the utility model.
Sequence number is represented among the figure: left and right sides valve body 1; Middle valve body 2; Locating stud 4; Liner plate 5; Bearing 6; Thrust bearing 7; Spheroid 8; Valve rod 9; Valve seat secondary seal ring 10; Valve seat primary seal circle 11; Valve seat bracing ring 12; Seal ring 13 behind the minor diameter seat; Increase seal ring 14; Seal ring 15 behind the major diameter seat; Elastic component 16; Narrow-clearance submerged arc welding groove 17; Valve rod master fire proof seal circle 18; Valve rod primary seal circle 19; Valve rod secondary seal ring 20; Upper shaft sleeve 21; The secondary fire proof seal circle 22 of valve rod; Gland 23; Cylindrical 25 and the little cylindrical 26 of valve seat bracing ring in the valve seat bracing ring.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further.
With reference to Fig. 1, Fig. 2, Fig. 3; This comprises left and right sides valve body 1, middle valve body 2, spheroid 8, valve seat bracing ring 12, liner plate 5, bearing unit, elastic component 16, valve rod 9, valve gap assembly and some Sealings; Bearing unit wherein comprises bearing 6 and thrust bearing 7, and valve gap assembly wherein comprises Upper shaft sleeve 21 and gland 23, and some Sealings wherein comprise valve seat primary seal circle 11 and valve seat secondary seal ring 10; Seal ring 13 behind seal ring 15 and the minor diameter seat behind the major diameter seat; And the increase seal ring 14 with piston effect, valve rod primary seal circle 19 and valve rod secondary seal ring 20, valve rod master fire proof seal circle 18 and the secondary fire proof seal circle 22 of valve rod.
The bottom of above-mentioned narrow-clearance submerged arc welding groove 17 is circular arc, and the radius of circular arc is 6～10mm, and both sides are to tilt and opening increases gradually, and the oblique angle on both sides is 3～7 °, groove gap 12～16mm.
Above-mentioned valve seat primary seal circle 11 be located at valve seat bracing ring 12 near on the position of peripheral part and with the sphere joining place of spheroid 8, valve seat secondary seal ring 10 be located at valve seat bracing ring 12 near on the position of interior perimembranous and with the sphere joining place of spheroid 8; Valve seat primary seal circle 11, valve seat secondary seal ring 10 contact with the sphere of spheroid 8 closely, can cut off or connect ducted medium.
Behind the above-mentioned major diameter seat seal ring 15 be located on the middle cylindrical 25 of valve seat bracing ring 12 and with the joining place of left and right sides valve body 1; Behind the minor diameter seat seal ring 13 be located on the little cylindrical 26 of valve seat bracing ring 12 and with the joining place of left and right sides valve body 1, the place, space that in the step surface of the little cylindrical 26 of valve seat bracing ring 12 and the left and right sides with matching valve body 1, forms between the step surface of circle is provided with the increase seal ring 14 with double-piston effect.The seal pressure that seal ring 15 bears spheroid primary seal circle 11 behind the major diameter seat wherein when high pressure obviously reduces; The seal pressure that seal ring 13 receives spheroid secondary seal ring 10 behind the minor diameter seat obviously reduces; When increased pressure, this moment, the end thrust of valve seat was not too big, and spheroid secondary seal ring 10 can seal to the endless belt that forms between spheroid primary seal circle 11 and the spheroid secondary seal ring 10 by releasing pressure automatically; Avoided seal pressure excessive; Again can not self-righting situation behind spheroid secondary seal ring 10 releasing pressure automaticallies, prevent that spheroid secondary seal ring 10 is impaired, prolong its working life.Simultaneously, the effect that increases seal ring 14 is no matter medium is which direction to get into valve from, and entrance point and outlet end can obtain sealing, have realized the two way sealed function, though there is not piston assembly to have double-piston effect (promptly having the DIB function).In addition, increase seal ring 14 and replaced original piston assembly, the volume of valve is reduced greatly, also reduced the keying moment of valve.
Above-mentioned valve rod primary seal circle 19 be located on the Upper shaft sleeve 21 and with valve rod 9 joining places; Valve rod secondary seal ring 20 be located on the gland 23 and with valve rod 9 joining places; On the interface that valve rod master fire proof seal circle 18 is located between Upper shaft sleeve 21 and the middle valve body 2, on the interface that the secondary fire proof seal circle 22 of valve rod is located between gland 23 and the Upper shaft sleeve 21.The sealing of valve rod 9 at this moment changes the sealing configuration that the valve rod secondary seal ring 20 by a built-in valve rod primary seal circle 19 in pressure-bearing shell and an approximate external outside pressure-bearing shell is combined into into by past external packing box seal; Sealing function with " inside and outside minor "; Can improve the sealability of valve greatly, reduce the keying moment of valve widely.Simultaneously, realized under operating mode, just need not shutting down and to have changed valve rod secondary seal ring 20, made things convenient for the maintenance of valve.
Claims (5)
1. one kind is welded the valve body pipeline ball-valve entirely; Comprise left and right sides valve body, middle valve body, spheroid, valve seat bracing ring, liner plate, bearing unit, elastic component, valve rod and valve gap assembly; It is characterized in that the valve gap assembly be located in valve body top and be arranged in outside the valve body; In the valve body, valve rod was contained on the middle valve body after passing the valve gap assembly during liner plate, spheroid were located at successively; Left and right sides valve body is located at the two ends of middle valve body, liner plate and spheroid; Joining place between middle valve body and the left and right sides valve body has the narrow-clearance submerged arc welding groove; Left and right sides valve body is connected through the locating stud location and with liner plate; Be provided with the valve seat bracing ring between left and right sides valve body and the spheroid, be connected through bearing unit between spheroid and the liner plate, on the valve body of the left and right sides and with the joining place of valve seat bracing ring, be respectively equipped with elastic component.
2. a kind of full welding valve body pipeline ball-valve according to claim 1 is characterized in that the bottom of narrow-clearance submerged arc welding groove is circular arc, and the circular arc radius is 6～10mm, and two bias are 3～7 °, and groove gap is 12～16mm.
3. a kind of full welding valve body pipeline ball-valve according to claim 1 is characterized in that the valve gap assembly comprises Upper shaft sleeve and gland, and gland is positioned on the Upper shaft sleeve, and valve rod refills on middle valve body after passing gland, Upper shaft sleeve.
4. a kind of full welding valve body pipeline ball-valve according to claim 1 is characterized in that it also comprises valve seat primary seal circle and valve seat secondary seal ring, seal ring behind seal ring and the minor diameter seat behind the major diameter seat, and the increase seal ring with double-piston effect; Wherein, valve seat primary seal circle be located at the valve seat bracing ring near on the position of peripheral part and with the sphere joining place of spheroid, the valve seat secondary seal ring be located at the valve seat bracing ring near on the position of interior perimembranous and with the sphere joining place of spheroid; Behind the major diameter seat seal ring be located on the middle cylindrical of valve seat bracing ring and with the joining place of left and right sides valve body; Behind the minor diameter seat seal ring be located on the little cylindrical of valve seat bracing ring and with the joining place of left and right sides valve body, the place, space that in the step surface of the little cylindrical of valve seat bracing ring and the left and right sides with matching valve body, forms between the step surface of circle is provided with the increase seal ring with double-piston effect.
5. according to claim 1 or 3 described a kind of full welding valve body pipeline ball-valves, it is characterized in that also comprising valve rod primary seal circle, valve rod secondary seal ring and valve rod master fire proof seal circle, the secondary fire proof seal circle of valve rod; Valve rod primary seal circle be located on the Upper shaft sleeve and with the valve rod joining place, the valve rod secondary seal ring be located on the gland and with the valve rod joining place, valve rod master fire proof seal circle is located between Upper shaft sleeve and the valve body, the secondary fire proof seal circle of valve rod is located between gland and the Upper shaft sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203465799U CN202215817U (en) | 2011-09-14 | 2011-09-14 | Pipeline ball valve with all-welded valve body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203465799U CN202215817U (en) | 2011-09-14 | 2011-09-14 | Pipeline ball valve with all-welded valve body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202215817U true CN202215817U (en) | 2012-05-09 |
Family
ID=46015073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203465799U Expired - Lifetime CN202215817U (en) | 2011-09-14 | 2011-09-14 | Pipeline ball valve with all-welded valve body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202215817U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102374308A (en) * | 2011-09-14 | 2012-03-14 | 克里特集团有限公司 | Pipeline ball valve of all-welded valve body |
| CN102853143A (en) * | 2012-09-26 | 2013-01-02 | 四川精控阀门制造有限公司 | All-welded ball valve and welding method of all-welded ball valve |
| CN103672008A (en) * | 2013-11-28 | 2014-03-26 | 克里特集团有限公司 | Ball valve with all-welded valve bodies and welding method of ball valve |
| CN104816137A (en) * | 2015-05-26 | 2015-08-05 | 苏州市燃气设备阀门制造有限公司 | Production technology of longitudinal single welding line all-welded ball valve |
| CN106151576A (en) * | 2016-08-26 | 2016-11-23 | 武汉大禹阀门股份有限公司 | A kind of self adaptation two-way floating valve seat construction |
| CN107676520A (en) * | 2017-09-18 | 2018-02-09 | 江苏诚功阀门科技有限公司 | Full welded pipeline ball valve body and its assemble welding technique |
| 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 |
-
2011
- 2011-09-14 CN CN2011203465799U patent/CN202215817U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102374308A (en) * | 2011-09-14 | 2012-03-14 | 克里特集团有限公司 | Pipeline ball valve of all-welded valve body |
| CN102853143A (en) * | 2012-09-26 | 2013-01-02 | 四川精控阀门制造有限公司 | All-welded ball valve and welding method of all-welded ball valve |
| CN103672008A (en) * | 2013-11-28 | 2014-03-26 | 克里特集团有限公司 | Ball valve with all-welded valve bodies and welding method of ball valve |
| CN104816137A (en) * | 2015-05-26 | 2015-08-05 | 苏州市燃气设备阀门制造有限公司 | Production technology of longitudinal single welding line all-welded ball valve |
| CN104816137B (en) * | 2015-05-26 | 2017-02-01 | 苏州市燃气设备阀门制造有限公司 | Production technology of longitudinal single welding line all-welded ball valve |
| CN106151576A (en) * | 2016-08-26 | 2016-11-23 | 武汉大禹阀门股份有限公司 | A kind of self adaptation two-way floating valve seat construction |
| CN106151576B (en) * | 2016-08-26 | 2019-02-19 | 武汉大禹阀门股份有限公司 | A kind of adaptive two-way floating valve seat construction |
| CN107676520A (en) * | 2017-09-18 | 2018-02-09 | 江苏诚功阀门科技有限公司 | Full welded pipeline ball valve body and its assemble welding technique |
| CN107676520B (en) * | 2017-09-18 | 2019-04-09 | 江苏诚功阀门科技有限公司 | Full welded pipeline ball valve body and its assemble welding technique |
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120509 |