CN202371203U - All-welded pipeline ball valve - Google Patents
All-welded pipeline ball valve Download PDFInfo
- Publication number
- CN202371203U CN202371203U CN2011205341945U CN201120534194U CN202371203U CN 202371203 U CN202371203 U CN 202371203U CN 2011205341945 U CN2011205341945 U CN 2011205341945U CN 201120534194 U CN201120534194 U CN 201120534194U CN 202371203 U CN202371203 U CN 202371203U
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- China
- Prior art keywords
- valve
- ball
- supporting plate
- connectors
- ball valve
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- Expired - Fee Related
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Abstract
The utility model relates to an all-welded pipeline ball valve, which mainly solves the problems that parts between a valve body of the conventional ball valve and connectors on two sides easily leak, and the valve is opened and closed strenuously. The ball valve is characterized in that the two ends of a valve body (1) are welded with connectors (5); an upper support plate (6) and a lower support plate (7) are fixedly arranged between the two connectors (5); and the upper end and lower end of a valve ball (3) are respectively supported and positioned by the upper support plate (6) and the lower support plate (7). By the all-welded pipeline ball valve, connecting structures between the valve body and the connectors on the two sides are simplified, joints difficultly leak, and the valve is opened and closed in a labor-saving mode and has a double block and bleed (DBB) function; a blow-off valve and grease injection valves are added, so that dirt in a middle cavity can be removed; and when valve seats leak or are needed to be repaired urgently, sealing grease can be injected into the grease injection valves for sealing by a grease injection gun.
Description
Technical field
The utility model relates to a kind of valve, is specifically related to a kind of full welded pipeline ball valve.
Background technique
Ball valve is mainly used in the medium that blocks or connect in the pipeline, also can be used for the adjusting and the control of fluid, and open-shut device (spheroid) is driven by valve rod and rotates around the axis of valve rod.Existing ball valve mainly is made up of valve body, valve seat, valve ball and valve rod, and valve body is generally split-type structural, connects through flange, bolt; Valve seat is a floating structure; Adopt before the valve ball with valve ball after the two way sealed structure, push valve seat the sphere of valve ball to by hydrodynamic pressure, realize sealing; Promptly possesses DBB (double block and bleed) function; Each valve seat can both be blocked the pressure from pipeline, and last sealing and middle cavity pressure can be released through bleeder valve, and this ball valve is also referred to as fixedly spherical ball valve.There is following defective in above-mentioned ball valve: because connecting body flange, bolt, nut, the pad of valve body and both sides are connected, when the pipeline internal pressure is higher, be prone to leakage in the joint 1..2. an end of valve ball is supported by valve rod by the valve body support the other end, and the active force of medium is delivered on the valve rod through spheroid, makes valve rod receive radial pressure, and rotary valve rod is required great effort, and has increased the moment of opening/shutting valve.
The model utility content
In order to be prone to the deficiency of leakage and opening/shutting valve effort between the connecting body that overcomes existing ball valve body and both sides; The utility model provides a kind of full welded pipeline ball valve; This full welded pipeline ball valve has been simplified the linkage structure between the connecting body of valve body and both sides and has been difficult for leaking in this joint, and opening/shutting valve is laborsaving, possesses the DBB function simultaneously; Blowdown valve and grease pouring valve have also been increased; The dirt that can get rid of lumen, when leakage or the repairing of valve seat urgent need took place valve seat, available grease gun injected seal gease and seals from grease pouring valve.
The technological scheme of the utility model is: this full welded pipeline ball valve comprises valve body, valve seat, valve ball and valve rod; Valve ball links to each other with valve rod; Valve seat is floating structure and the both sides that are positioned at valve ball; Two ends of valve body is welded with connecting body respectively, is fixed with upper backup pad and lower supporting plate between two connecting bodys, and the location is supported by upper backup pad and lower supporting plate respectively in the upper end of valve ball and lower end.
Be respectively equipped with through hole on described upper backup pad and the lower supporting plate, the upper end and the lower end of valve ball are respectively equipped with cylinder, are provided with bearing between the through hole on described cylinder and upper backup pad and the lower supporting plate.
The bottom of described valve body is equipped with blowdown valve.
Grease pouring valve and safety check are installed on the described connecting body, and grease pouring valve communicates with the sealing surface of valve seat and valve ball.
The utlity model has following beneficial effect: owing to take technique scheme, simplified the linkage structure between the connecting body of valve body and both sides through the mode of welding, be difficult for leakage in this joint; Valve ball is delivered on the valve body through upper backup pad and lower supporting plate by the active force of medium, reduces the pressure to valve rod, and opening/shutting valve is laborsaving, and is steadily reliable.The utility model also possesses the DBB function simultaneously, has increased blowdown valve and grease pouring valve, can get rid of the dirt of lumen, and when leakage or the repairing of valve seat urgent need took place valve seat, available grease gun injected seal gease and seals from grease pouring valve.
Description of drawings
Accompanying drawing 1 is the structure sectional view of the utility model.
1-valve body among the figure, 2-valve seat, 3-valve ball, 4-valve rod, 5-connecting body, 6-upper backup pad, 7-lower supporting plate, 8-through hole, 9-cylinder, 10-bearing, 11-blowdown valve, 12-grease pouring valve, 13-safety check.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further:
By shown in Figure 1; This full welded pipeline ball valve comprises valve body 1, valve seat 2, valve ball 3 and valve rod 4, and valve ball 3 links to each other with valve rod 4, and valve seat 2 is floating structure and the both sides that are positioned at valve ball 3; Valve seat 2 is designed to valve ball 3 forward and backward two way sealed structures; Push valve seat 2 sphere of valve ball 3 to by hydrodynamic pressure, realize sealing, promptly possess the DBB function.If its advantage is that a damage is arranged in two valve seats 2, valve still can seal, and improves valve working life.The two ends of valve body 1 are welded with respectively and are fixed with upper backup pad 6 and lower supporting plate 7 between 5, two connecting bodys 5 of connecting body, and the location is supported by upper backup pad 6 and lower supporting plate 7 respectively in the upper end of valve ball 3 and lower end.Owing to take such scheme, simplified the linkage structure between the connecting body 5 of valve body 1 and both sides through the mode of welding, be difficult for leakage in this joint; Valve ball 3 is delivered on the valve body 1 through upper backup pad 6 and lower supporting plate 7 by the active force of medium, reduces the pressure to valve rod 4, and opening/shutting valve is laborsaving, and is steadily reliable.
Be respectively equipped with through hole 8 on described upper backup pad 6 and the lower supporting plate 7, the upper end of valve ball 3 and lower end are respectively equipped with cylinder 9, are provided with bearing 10 between the through hole 8 on described cylinder 9 and upper backup pad 6 and the lower supporting plate 7.Valve rod 4 is connected with the cylinder 9 of valve ball 3 upper ends, and bearing 10 is installed between upper backup pad 6 and lower supporting plate 7 and the valve ball 3, and rotation valve rod 4 is more laborsaving, and in order to make compact structure, bearing 10 is selected sliding bearing for use.
The bottom of described valve body 1 is equipped with blowdown valve 11.When accumulating a certain amount of impurity dirt in the lumen of valve body 1 chamber that upper and lower end surrounded of valve ball 3 (valve seat 2 with), can open blowdown valve 11, get rid of dirt, recover the function of valve.
Grease pouring valve 12 and safety check 13 are installed on the described connecting body 6, and grease pouring valve 12 communicates with the sealing surface of valve seat 2 and valve ball 3.When leakage or valve seat 1 urgent need repairing took place valve seat 2, then available grease gun injected seal gease from grease pouring valve 12, recover sealability.
Claims (4)
1. full welded pipeline ball valve; Comprise valve body (1), valve seat (2), valve ball (3) and valve rod (4); Valve ball (3) links to each other with valve rod (4), and valve seat (2) is floating structure and the both sides that are positioned at valve ball (3), and it is characterized in that: the two ends of valve body (1) are welded with connecting body (5) respectively; Be fixed with upper backup pad (6) and lower supporting plate (7) between two connecting bodys (5), the location is supported by upper backup pad (6) and lower supporting plate (7) respectively in the upper end of valve ball (3) and lower end.
2. full welded pipeline ball valve according to claim 1; It is characterized in that: be respectively equipped with through hole (8) on upper backup pad (6) and the lower supporting plate (7); The upper end of valve ball (3) and lower end are respectively equipped with cylinder (9), are provided with bearing (10) between the through hole (8) on described cylinder (9) and upper backup pad (6) and the lower supporting plate (7).
3. full welded pipeline ball valve according to claim 1 and 2 is characterized in that: the bottom of valve body (1) is equipped with blowdown valve (11).
4. full welded pipeline ball valve according to claim 1 and 2 is characterized in that: grease pouring valve (12) and safety check (13) are installed on the connecting body (6), and grease pouring valve (12) communicates with the sealing surface of valve seat (2) and valve ball (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205341945U CN202371203U (en) | 2011-12-19 | 2011-12-19 | All-welded pipeline ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205341945U CN202371203U (en) | 2011-12-19 | 2011-12-19 | All-welded pipeline ball valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202371203U true CN202371203U (en) | 2012-08-08 |
Family
ID=46594907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205341945U Expired - Fee Related CN202371203U (en) | 2011-12-19 | 2011-12-19 | All-welded pipeline ball valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202371203U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103982673A (en) * | 2014-05-29 | 2014-08-13 | 昆山维萨阀门有限公司 | All-welded ball valve |
| CN106439085A (en) * | 2016-10-17 | 2017-02-22 | 温州太科阀门科技有限公司 | Valve oil film sealing structure and valve with oil film sealing structure |
-
2011
- 2011-12-19 CN CN2011205341945U patent/CN202371203U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103982673A (en) * | 2014-05-29 | 2014-08-13 | 昆山维萨阀门有限公司 | All-welded ball valve |
| CN106439085A (en) * | 2016-10-17 | 2017-02-22 | 温州太科阀门科技有限公司 | Valve oil film sealing structure and valve with oil film sealing structure |
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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: 20120808 Termination date: 20171219 |