CN203797023U - Large-diameter fixed all-welded ball valve - Google Patents
Large-diameter fixed all-welded ball valve Download PDFInfo
- Publication number
- CN203797023U CN203797023U CN201420152435.3U CN201420152435U CN203797023U CN 203797023 U CN203797023 U CN 203797023U CN 201420152435 U CN201420152435 U CN 201420152435U CN 203797023 U CN203797023 U CN 203797023U
- Authority
- CN
- China
- Prior art keywords
- ball
- valve
- welded
- ball valve
- fixed
- Prior art date
- 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.)
- Expired - Fee Related
Links
Landscapes
- Taps Or Cocks (AREA)
Abstract
The utility model provides a large-diameter fixed all-welded ball valve which is simple in structure and better in sealing effect. The large-diameter fixed all-welded ball valve comprises a valve block unit, a bonnet unit, and a ball. The bonnet unit is disposed on the upper portion of the ball. The valve block unit is disposed on the lower portion of the ball. The large-diameter fixed all-welded ball valve is characterized in that ball pad seats are arranged on left and right sides of the ball respectively, cylindrical springs are mounted on one side of each ball pad seat, and the other side of each ball pad seat is hermetically connected with the ball through a corresponding ball pad. A flat gasket and a belleville spring which are independently separate in the traditional large-diameter welded ball valve seal structure are combined together, a novel seal structure composed of a ball pad seat body and 160-200 cylindrical springs capable of absorbing pressure and energy is used instead, and therefore, the problem that torque of the traditional floating soft-seal welded ball valve is too high due to permanent deformation and failure of the belleville springs and eccentricity of the valve is solved substantially.
Description
Technical field
The utility model relates to ball valve technical field, the fixed all-welded ball valve of especially a kind of heavy caliber.
Background technique
In traditional heavy caliber welding ball valve structure traditional design, generally by belleville spring, sidewall O type circle, ball pad, ball base etc., formed.When pipeline internal medium pressure is very low, the active force of belleville spring guarantees entrance point sealing; When pipeline internal medium pressure is higher, medium acts on spheroid, promotes whole spheroid and moves and be adjacent to outlet end sealed member and realize sealing; Therefore under the effect of belleville spring and medium, realize two way sealed.
But when valve latus rectum is larger, when as above in 900mm, above-mentioned valve mechanism principle is with regard to defectiveness and irrationality, specific as follows:
If select belleville spring: general welding ball valve valve design pressure P N25, be that pipeline allows maximum service pressure 2.5MPa, in this case, because belleville spring optimum Working is the 10%--75% of its maximum compressibility, long-term under the effect of medium, belleville spring active force can slowly weaken, even can there is permanent deformation, cannot recover, valve seal effect meeting variation can not meet the valve life requirements of decades at all; Another when belleville spring active force is too large, in valve assembly process the side of valve seat be easy to destroyed, thereby make belleville spring inefficacy.After belleville spring lost efficacy, the in the situation that of low pressure, entrance point cannot seal; Once impurity damages outlet end place ball pad in pipeline, just will be difficult to realize again two way sealed.
And belleville spring operation is many: die sinking, stamping-out, moulding, heat treatment, surface treatment, cost is relatively high.
Model utility content
Technical problem to be solved in the utility model is mainly: for defect or the deficiency of above-mentioned belleville spring, a kind of novel sealing configuration is provided, with this, solves belleville spring generation permanent deformation on traditional heavy caliber welding ball valve and rotating shaft effective location, not eccentric difficult problem.
The utility model provides a kind of simple in structure, fixed all-welded ball valve of the better heavy caliber of sealing effect, comprise valve component, bonnet assemblies, spheroid, spheroid top arranges bonnet assemblies, bottom arranges valve component, it is characterized in that: the spheroid left and right sides arranges respectively ball base, ball base one side is installed cylindrical spring, and opposite side is connected with ball seal by ball pad.
Preferably, described ball base one side surface connection reinforcement plain cushion, strengthens plain cushion and is provided with some holes, and this hole and cylindrical spring are suitable, and cylindrical spring compression is installed in hole.
Preferably, between described ball pad and reinforcement plain cushion surface of contact, be provided with at least two sidewall O type circles.
Preferably, described spheroid top arranges axis, and bottom arranges lower axis; Upper axis top arranges a sliding bearing, and sliding bearing top arranges gland, and gland is connected with upper axis sleeve thread; Gland top arranges transmission Worm gear mechanism.
Preferably, described upper axis bottom arranges a sliding bearing, and sliding bearing is positioned at the joint of axis and bonnet assemblies, and upper axis is welded on bonnet assemblies by upper axis axle sleeve.
Preferably, described lower axis top arranges a sliding bearing, and sliding bearing is positioned at the joint of lower axis and spheroid.
Preferably, sheathed O type circle between described lower axis and lower axis axle sleeve; Sheathed O type circle between upper axis middle part and upper axis axle sleeve.
Preferably, described cylindrical spring quantity is 160-200.
Preferably, described sliding bearing is elasticity self-alignment bearing.
Preferably, described lower axis bottom is welded on valve component by lower axis axle sleeve, and cover plate is threaded below lower axis axle sleeve; Bonnet assemblies and valve component middle part are supported by liner plate, and bonnet assemblies and valve component two ends are installed as one by stifle; Bonnet assemblies and/or valve component are provided with suspension ring.
The beneficial effects of the utility model are as follows:
1, the utility model unites two into one two part plain cushions that independently separate in traditional heavy caliber welding ball valve sealing configuration and belleville spring, by a ball base be main body and 160-200 can absorption pressure and the novel sealing structure that forms of the cylindrical spring of energy substitute, thereby the belleville spring generation permanent deformation, inefficacy, the valve bias that fundamentally solve on traditional heavy caliber welding ball valve cause the excessive difficult problem of moment of torsion.
2, in the utility model, on lower axis, adopt an elasticity self-alignment bearing with opening, on upper axis, adopt an elasticity self-alignment bearing with opening.Upper and lower like this axis, under the positioning action of two bearings, can be guaranteed the self-alignment of the steady and rotating shaft that ball valve unlatching is rotated.
3, in upper axis upper end, set up an elasticity self-alignment bearing, can strengthen rigidity and the stationarity of worm gear drive mechanism operation, prevent that valve bias from causing moment of torsion excessive, reduces the cost of the fixed all-welded ball valve of whole heavy caliber.
4, the sealing configuration of the fixed all-welded ball valve of heavy caliber of the present utility model, easy operating and maintenance, compact structure, cost is low, be particularly suitable for latus rectum at the above heavy caliber welding ball valve of 900mm, can reach more than 50 years working life, is far longer than cast steel ball valve.Can be widely used on the various pipes equipment such as gas, city heat supply, petrochemical industry, shipbuilding, iron and steel, voltage regulating station, power station.
Accompanying drawing explanation
Fig. 1: the fixed all-welded ball valve overall structure of heavy caliber of the present utility model schematic diagram;
Fig. 2: I portion enlarged view in Fig. 1;
Fig. 3: II portion enlarged view in Fig. 1;
Fig. 4: III portion enlarged view in Fig. 1;
Fig. 5: IV portion enlarged view in Fig. 1.
In figure: under 1-valve component, 2-bonnet assemblies, 3-spheroid, the upper axis of 4-, 5-, under axis, 6-gland, the upper axis axle sleeve of 7-, 8-transmission Worm gear mechanism, 9-, axis axle sleeve, 10-cover plate, 11-liner plate, 12-stifle, 13-suspension ring, 14-ball base, 15-cylindrical spring, 16-ball pad, 17-strengthen plain cushion, 18-sidewall O type circle, 19-O type circle, 20-elasticity self-alignment bearing.
Embodiment
For describing technology contents of the present utility model in detail, below in conjunction with embodiment and coordinate accompanying drawing to be described in detail.
The fixed all-welded ball valve of heavy caliber, overall structure: valve component 1, bonnet assemblies 2, spheroid 3, spheroid 3 tops arrange bonnet assemblies 2, and bottom arranges valve component 1; Spheroid 3 tops arrange axis 4, and bottom arranges lower axis 5; Gland 6 is threaded with upper axis axle sleeve 7; Gland 6 tops arrange transmission Worm gear mechanism 8; Lower axis 5 bottoms are welded on valve component 1 by lower axis axle sleeve 9, the lower axis axle sleeve 9 belows cover plate 10 that is threaded; Bonnet assemblies 2 supports by liner plate 11 with valve component 1 middle part, and bonnet assemblies 2 is installed as one with valve component 1 two ends by stifle 12; Bonnet assemblies 2 and valve component 1 are provided with suspension ring 13.
Sealing configuration: spheroid 3 left and right sides arrange respectively ball base 14, ball base 14 1 sides are installed cylindrical spring 15, opposite side is tightly connected by ball pad 16 and spheroid 3, ball pad, 14 1 side surface connection reinforcement plain cushions 17, strengthen plain cushion 17 and are provided with some holes, and this hole and cylindrical spring 15 are suitable, cylindrical spring 15 compressions are installed in hole, and cylindrical spring 15 quantity are selected 160-200; Between ball pad 16 and reinforcement plain cushion 17 surface of contact, be provided with two sidewall O type circles 18.Sheathed some O type circles 19 between lower axis 5 and lower axis axle sleeve 9; Sheathed some O type circles 19 between upper axis 4 middle parts and upper axis axle sleeve 7.
Elasticity self-alignment structure: upper axis 4 tops arrange an elasticity self-alignment bearing 20 with opening, elasticity self-alignment bearing 20 tops arrange gland 6, upper axis 4 bottoms arrange an elasticity self-alignment bearing 20 with opening, elasticity self-alignment bearing 20 is positioned at the joint of axis 4 and bonnet assemblies 2, and upper axis 4 is welded on bonnet assemblies 2 by upper axis axle sleeve 7; Lower axis 5 tops arrange an elasticity self-alignment bearing 20 with opening, and elasticity self-alignment bearing 20 is positioned at the joint of lower axis 5 and spheroid 3.
Described ball pad 16 preferably adopts the strengthening teflon of content 20% carbon fiber to make, the preferred QSn4-3 of material of elasticity self-alignment bearing 20, and opening.
The utility model is not limited to above-mentioned specific embodiment, and it carries out detailed, exemplary explanation as just example to a kind of form of the present utility model.Within not deviating from the scope of the utility model aim, those of ordinary skills can according to above-mentioned specific embodiment by various be equal to replace obtain technological scheme, but these technological schemes all should be included in the scope of claim of the present utility model and the scope that is equal within.
Claims (10)
1. the fixed all-welded ball valve of heavy caliber, comprise valve component, bonnet assemblies, spheroid, spheroid top arranges bonnet assemblies, bottom arranges valve component, it is characterized in that: the spheroid left and right sides arranges respectively ball base, ball base one side is installed cylindrical spring, and opposite side is connected with ball seal by ball pad.
2. the fixed all-welded ball valve of heavy caliber according to claim 1, is characterized in that: described ball base one side surface connection reinforcement plain cushion, and to strengthen plain cushion and be provided with some holes, this hole and cylindrical spring are suitable, and cylindrical spring compresses and is installed in hole.
3. the fixed all-welded ball valve of heavy caliber according to claim 2, is characterized in that: between described ball pad and reinforcement plain cushion surface of contact, be provided with at least two sidewall O type circles.
4. according to the fixed all-welded ball valve of heavy caliber described in claim 1-3 any one, it is characterized in that: described spheroid top arranges axis, and bottom arranges lower axis; Upper axis top arranges a sliding bearing, and sliding bearing top arranges gland, and gland is connected with upper axis sleeve thread; Gland top arranges transmission Worm gear mechanism.
5. the fixed all-welded ball valve of heavy caliber according to claim 4, it is characterized in that: described upper axis bottom arranges a sliding bearing, sliding bearing is positioned at the joint of axis and bonnet assemblies, and upper axis is welded on bonnet assemblies by upper axis axle sleeve.
6. the fixed all-welded ball valve of heavy caliber according to claim 4, is characterized in that: described lower axis top arranges a sliding bearing, and sliding bearing is positioned at the joint of lower axis and spheroid.
7. the fixed all-welded ball valve of heavy caliber according to claim 4, is characterized in that: sheathed O type circle between described lower axis and lower axis axle sleeve; Sheathed O type circle between upper axis middle part and upper axis axle sleeve.
8. the fixed all-welded ball valve of heavy caliber according to claim 1, is characterized in that: described cylindrical spring quantity is 160-200.
9. according to the fixed all-welded ball valve of heavy caliber described in claim 5-6 any one, it is characterized in that: described sliding bearing is elasticity self-alignment bearing.
10. according to the fixed all-welded ball valve of heavy caliber described in claim 5-7 any one, it is characterized in that: described lower axis bottom is welded on valve component by lower axis axle sleeve, cover plate is threaded below lower axis axle sleeve; Bonnet assemblies and valve component middle part are supported by liner plate, and bonnet assemblies and valve component two ends are installed as one by stifle; Bonnet assemblies and/or valve component are provided with suspension ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420152435.3U CN203797023U (en) | 2014-03-31 | 2014-03-31 | Large-diameter fixed all-welded ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420152435.3U CN203797023U (en) | 2014-03-31 | 2014-03-31 | Large-diameter fixed all-welded ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203797023U true CN203797023U (en) | 2014-08-27 |
Family
ID=51379234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420152435.3U Expired - Fee Related CN203797023U (en) | 2014-03-31 | 2014-03-31 | Large-diameter fixed all-welded ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203797023U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105864450A (en) * | 2016-06-03 | 2016-08-17 | 江苏威尔迪威阀业有限公司 | All-welded ball valve disc type sealing structure |
| CN115823281A (en) * | 2023-02-21 | 2023-03-21 | 自贡新比隆阀门有限公司 | Sliding double-plate ball valve |
-
2014
- 2014-03-31 CN CN201420152435.3U patent/CN203797023U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105864450A (en) * | 2016-06-03 | 2016-08-17 | 江苏威尔迪威阀业有限公司 | All-welded ball valve disc type sealing structure |
| CN115823281A (en) * | 2023-02-21 | 2023-03-21 | 自贡新比隆阀门有限公司 | Sliding double-plate ball valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202451878U (en) | Bisected hard sealing ball valve | |
| CN202733009U (en) | Flange two-way pressure hard sealing butterfly valve | |
| CN203797023U (en) | Large-diameter fixed all-welded ball valve | |
| CN202674339U (en) | Butt-weld bidirectional pressing hard seal butterfly valve | |
| CN201416653Y (en) | Bellows ball core stop valve | |
| CN202402687U (en) | Large-caliber floating ball valve | |
| CN104179994A (en) | All-metal bidirectional high-pressure butterfly valve | |
| CN103470790B (en) | Three eccentric metal seal butterfly valve | |
| CN202100754U (en) | Metal sealing ball valve | |
| CN201705286U (en) | Double-stem gate valve of thermal production well head | |
| CN202432004U (en) | Trunnion ball valve capable of opened and closed easily | |
| CN203926966U (en) | Heavy caliber core bar integral type modulating valve | |
| CN203500552U (en) | Sealing structure of floating flexible seal welding ball valve | |
| CN103410997A (en) | High-pressure-relief type parallel-double-gate single side hard sealing gate valve | |
| CN205896251U (en) | High temperature ball valve that floats sealed firmly | |
| CN202510738U (en) | Bellows gate valve | |
| CN203585359U (en) | Triple-eccentric metal sealing butterfly valve | |
| CN205479452U (en) | All -welded ball valve | |
| CN211039752U (en) | Top-mounted fixed ball valve capable of realizing online quick disassembly and maintenance | |
| CN203297657U (en) | Ball valve for fixing ball | |
| CN204610916U (en) | A kind of Novel high-temperature high-pressure parallel double-flashboard gate valve | |
| CN202659949U (en) | Self-tightening sealing ball valve | |
| CN203214929U (en) | All-welded fixed ball valve with cylindrical body | |
| CN210623579U (en) | High-temperature-resistant corrugated pipe stop valve | |
| CN206972965U (en) | A kind of double graphite hard seal ball valves of low torque all-metal |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140827 Termination date: 20200331 |