CN204533724U - A kind of full welded pipeline ball valve - Google Patents
A kind of full welded pipeline ball valve Download PDFInfo
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- CN204533724U CN204533724U CN201520169223.0U CN201520169223U CN204533724U CN 204533724 U CN204533724 U CN 204533724U CN 201520169223 U CN201520169223 U CN 201520169223U CN 204533724 U CN204533724 U CN 204533724U
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- pipeline ball
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Abstract
The utility model discloses a kind of full welded pipeline ball valve, comprise valve body, valve seat, spheroid, valve rod, O RunddichtringO and primary seal circle.Described valve body comprises left valve barrel, middle valve body, right valve barrel and Stuffing box; Described left valve barrel and right valve barrel are the part sphere of symplex structure, and described middle valve body is the part sphere making up described left valve barrel and right valve barrel, and described left valve barrel, middle valve body, right valve barrel form as a whole spheroid by the longitudinal weld assembly welding of twice symmetry; The upper-end surface of described middle valve body is offered a valve rod jack; Described Stuffing box by one transverse weld and corresponding described valve rod jack be welded on the upper-end surface of described middle valve body.The total quality of full welded pipeline ball valve of the present utility model alleviates 30% ~ 40% compared with the ball valve of cylindrical structure, and this reduces manufacture and purchase cost to a great extent.
Description
Technical field
The utility model relates to a kind of full welded pipeline ball valve.
Background technique
Long distance pipeline is the most cheap, the safest and mode the most easily of the long-distance transportations such as oil, rock gas and product oil, and therefore long-distance transport pipes are worldwide widely used.Switch is rapid, flow resistance is little, compact structure, quality light and seal the advantages such as reliable because it has for full welded pipeline ball valve, and becomes the first-selected controlling component that long distance pipeline realization collection is defeated, divide the operations such as defeated and station Inner eycle, equipment connection, tank switching, overreach and wiper transmitting-receiving to use.At present, the form structure of spherical valve has two large classes, and a class is spherical full welding valve body structure, and another kind of is that tubular welds valve body structure entirely.
Ball valve adopts wall scroll weld seam unit-welded, and ball valve is by the longitudinal weld assembly welding of valve body in centre of two the end socket shapes in left and right, and Stuffing box passes through transverse weld assembly welding in the upper-end surface of spherical valve body.Although the valve body weld seam of this structure is few, and weld seam is away from valve seat, welding heat is easy damaged valve seat not, and the longitudinal weld of this structure can produce with transverse weld and intersect, and makes the weld joint intersected have stress and concentrates.
Tubular valve body (see Fig. 1) adopts twice longitudinal weld assembly welding to form, namely the step cylinder 11 ', 13 ', a section that employing two sections is symmetrical is positioned at the straight cylinder 12 ' in the middle of two sections of step cylinders 11 ', 13 ', although twice longitudinal weld 15 ' does not intersect with transverse weld 16 ', but close to valve seat 2, easy damaged valve seat 2, in welding process, high temperature can be delivered to the sealing area of valve seat 2, larger to the heat affecting of O type circle 5 and primary seal circle 6.
The aspects such as nowadays, domestic pipeline valve is still based on cylindrical structure, and its feature is mainly manifested in bulky, and quality is heavy, cost is high, packed and transported difficulty, the valve of medium-large caliber is especially outstanding.
Model utility content
The advantages such as the purpose of this utility model is to overcome the defect of prior art and provides a kind of full welded pipeline ball valve, and it has uniform force, compact structure, quality is light, beautiful shape, leakage point are few.
The purpose of this utility model is achieved in that a kind of full welded pipeline ball valve, comprises valve body, valve seat, spheroid, valve rod, O RunddichtringO and primary seal circle;
Described valve body comprises left valve barrel, middle valve body, right valve barrel and Stuffing box, wherein:
Described left valve barrel and right valve barrel are the part sphere of symplex structure, and described middle valve body is the part sphere making up described left valve barrel and right valve barrel, and described left valve barrel, middle valve body, right valve barrel form as a whole spheroid by the longitudinal weld assembly welding of twice symmetry;
The upper-end surface of described middle valve body is offered a valve rod jack;
Described Stuffing box by one transverse weld and corresponding described valve rod jack be welded on the upper-end surface of described middle valve body.
Above-mentioned full welded pipeline ball valve, wherein, the horizontal width of described middle valve body is greater than the external diameter 5 ~ 10mm of described Stuffing box.
The technological scheme of full welded pipeline ball valve of the present utility model, non-crossing weld seam is adopted to form valve body, namely adopt twice longitudinal welds and together with transverse weld formation spherical valve body, welding seam distance valve seat is far away, the sealing area that high temperature can not be delivered to valve seat can be controlled in welding process, less to the heat affecting of O type circle and primary seal circle, the primary seal circle of valve seat and O type circle can not be made like this to burn out or be out of shape, in addition, because weld seam is away from valve seat, the radial welding deformation of valve seat location is also extremely limited, this prevents the jam of valve seat, thus ensure that the sealing effect that valve is good.The advantages such as full welded pipeline ball valve of the present utility model has uniform force, compact structure, quality is light, beautiful shape, leakage point are few.Through calculating, the total quality of full welded pipeline ball valve of the present utility model alleviates 30% ~ 40% compared with the ball valve of cylindrical structure, and this reduces manufacture and purchase cost to a great extent.
Accompanying drawing explanation
Fig. 1 is the sectional drawing of the full welded pipeline ball valve of the tubular valve body of prior art;
Fig. 2 is the structural representation of full welded pipeline ball valve of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Refer to Fig. 2, the full welded pipeline ball valve of one of the present utility model, comprises valve body, valve seat 2, spheroid 3, valve rod 4, O RunddichtringO 5 and primary seal circle 6, wherein:
Valve body comprises left valve barrel 11, middle valve body 12, right valve barrel 13 and Stuffing box 14, wherein:
Left valve barrel 11 and right valve barrel 13 are the part sphere of symplex structure, middle valve body 12 is for making up the part sphere of left valve barrel 11 and right valve barrel 13, and left valve barrel 11, middle valve body 12, right valve barrel 13 form as a whole spheroid by longitudinal weld 15 assembly welding of twice symmetry;
The upper-end surface of middle valve body 12 is offered a valve rod jack 120;
Stuffing box 14 be columnar structured and by one transverse weld 16 and corresponding valve rod jack 120 be welded on the upper-end surface of middle valve body 12.
The horizontal width of middle valve body 12 is greater than the external diameter 5 ~ 10mm of Stuffing box 14, twice longitudinal weld 15 both can not be intersected, also away from the sealing area of valve seat 2 with transverse weld 16.
Full welded pipeline ball valve of the present utility model, non-crossing weld seam is adopted to form valve body, namely adopt twice longitudinal weld 15 with together with transverse weld 16 form spherical valve body, twice longitudinal weld 15 is far away apart from valve seat 2, the sealing area that high temperature can not be delivered to valve seat 2 can be controlled in welding process, less to the heat affecting of O type circle 5 and primary seal circle 6, the primary seal circle 6 of valve seat 2 can not be made like this to burn out with O type circle 5 or be out of shape.In addition, because twice longitudinal weld 15 is away from valve seat 2, the radial welding deformation of valve seat 2 also and limited, this prevents the jam of valve seat 2, thus ensure that the sealing effect that valve is good.The advantages such as full welded pipeline ball valve of the present utility model has uniform force, compact structure, quality is light, beautiful shape, leakage point are few.Through calculating, the total quality of full welded pipeline ball valve of the present utility model alleviates 30% ~ 40% compared with the ball valve of cylindrical structure, and this reduces manufacture and purchase cost to a great extent.
Full welded pipeline ball valve of the present utility model, the force-bearing situation of spherical valve body is better than cylindrical valve body structure, and counter-bending and anti-extrusion ability is strong, and valve design wall thickness is little, and quality is light, and integrality performance of the structure is good.
Above embodiment is only for illustration of the utility model, but not to restriction of the present utility model, person skilled in the relevant technique, when not departing from spirit and scope of the present utility model, various conversion or modification can also be made, therefore all equivalent technological schemes also should belong to category of the present utility model, should be limited by each claim.
Claims (2)
1. a full welded pipeline ball valve, comprises valve body, valve seat, spheroid, valve rod, O RunddichtringO and primary seal circle, it is characterized in that,
Described valve body comprises left valve barrel, middle valve body, right valve barrel and Stuffing box, wherein:
Described left valve barrel and right valve barrel are the part sphere of symplex structure, and described middle valve body is the part sphere making up described left valve barrel and right valve barrel, and described left valve barrel, middle valve body, right valve barrel form as a whole spheroid by the longitudinal weld assembly welding of twice symmetry;
The upper-end surface of described middle valve body is offered a valve rod jack;
Described Stuffing box by one transverse weld and corresponding described valve rod jack be welded on the upper-end surface of described middle valve body.
2. full welded pipeline ball valve according to claim 1, is characterized in that, the horizontal width of described middle valve body is greater than the external diameter 5 ~ 10mm of described Stuffing box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520169223.0U CN204533724U (en) | 2015-03-24 | 2015-03-24 | A kind of full welded pipeline ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520169223.0U CN204533724U (en) | 2015-03-24 | 2015-03-24 | A kind of full welded pipeline ball valve |
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| Publication Number | Publication Date |
|---|---|
| CN204533724U true CN204533724U (en) | 2015-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520169223.0U Active CN204533724U (en) | 2015-03-24 | 2015-03-24 | A kind of full welded pipeline ball valve |
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| CN (1) | CN204533724U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113669477A (en) * | 2021-08-27 | 2021-11-19 | 希佛隆阀门集团有限公司 | All-welded ball valve |
-
2015
- 2015-03-24 CN CN201520169223.0U patent/CN204533724U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113669477A (en) * | 2021-08-27 | 2021-11-19 | 希佛隆阀门集团有限公司 | All-welded ball valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200509 Address after: No. 7, No. 191, Guang Zhong West Road, Shanghai, Jingan District, Shanghai Patentee after: SHANGHAI AUTOMATION INSTRUMENTATION Co.,Ltd. Address before: 201206 No. 333, Qin Qiao Road, Jinqiao Export Processing Zone, Shanghai, Pudong New Area Patentee before: SNJ VALVE Co.,Ltd. |
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| TR01 | Transfer of patent right |