CN102829208A - Ball valve for long-distance pipeline - Google Patents
Ball valve for long-distance pipeline Download PDFInfo
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- CN102829208A CN102829208A CN2011101626432A CN201110162643A CN102829208A CN 102829208 A CN102829208 A CN 102829208A CN 2011101626432 A CN2011101626432 A CN 2011101626432A CN 201110162643 A CN201110162643 A CN 201110162643A CN 102829208 A CN102829208 A CN 102829208A
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Abstract
The invention relates to a ball valve for a long-distance pipeline. In order to overcome the shortcomings of the prior ball valve for the long-distance pipeline, such as difficulty in welding, inconvenient to set up and proneness to cause accumulation of static electricity, a valve body provided by the invention includes a main part and a transition part. The main part is cylindrical in shape and the transition part is arranged on both ends of the main body. An upper support is fixed on the upper end of the main part and a lower support seat is fixed on the lower end of the main part; one end of the transition part is of arc shape with diameter of the big end equal to diameter of the main part and is welded to the end of the main part; the other end of the transition part, which extends in an arc transition manner, is of cylindrical shape with diameter equal to diameter of the long-distance pipeline and is weld to the long-distance pipeline; a big-end-down conicalness on the lower end of a valve stem is arranged in the bore hole on the top of a valve ball and the valve ball is weld to the valve stem; a spring is arranged in the cylindrical bore on the upper end face of the cylindrical lower support seat and a groove is above the spring and below the valve ball and is equipped with a steel ball. The ball valve has the beneficial effects of being simplified and reasonable in structure, reliable in performance and easy in volume production.
Description
Technical field
The present invention relates to a kind of ball valve, especially relate to a kind of long-distance transport pipes ball valve, be mainly used in the equipment of long oil and gas pipeline and line transportation.
Background technique
The long-distance transport pipes ball valve mainly comprises valve body, valve ball, valve rod, goes up support, following supporting base etc., and the valve ball lower end of ball valve is sitting in down on the supporting base, and the cylindrical body of following supporting base upper end cooperates with the endoporus of valve ball lower end; The valve ball upper end is fixedly connected with valve rod, and the valve rod upper end portion is arranged in the support endoporus; Rotation valve rod drives valve ball and rotates, and realizes the opening and closing of ball valve.
The ball valve body that is used for long-distance transport pipes adopts the welding procedure manufacturing mostly.Along with the continuous development of all-welded ball valve valve body design and manufacturing technology is perfect, the Shape Classification according to valve body mainly contains ball type, barrel-type, short cartridge type etc. at present.Through being welded to form, body cavity is corresponding with the valve ball shape by two semicircle spheroids the ball type valve body, and weld seam has level; Also have vertical, the ball type ball valve be characterized in that volume is little, in light weight, but the manufacturing difficulty is big; Need to use the special welding mould; Be difficult for making in batches, owing to space in the valve body is little, be not easy to the assembling of ball valve simultaneously.The barrel-type valve body is cylindric, and cylindric valve body two ends are fixedly connected with flange respectively, the characteristics that the barrel-type ball valve has the manufacturing of being easy to, can produce in batches, but it is bulky, quality heavy, is not easy to use install, and cost of material is high.Short cartridge type valve body combines the characteristics of ball type and barrel-type valve body, and valve body intermediate portion main body is cylindric, and the transition body of main body two ends and valve ball circular arc corresponding position is a sphere-like, and shape is corresponding with the valve ball shape.The valve body of above-mentioned several kinds of structural types is in manufacturing and designing process; With reference to the API standard; Its ball valve body is U.S.'s marks that adopt when material is chosen more; Because the material selected for use is inconsistent with the on-the-spot pipeline material of using, therefore needing increases by a changeover portion, promptly need increase by one section pipe that not only had been prone to welding with valve body but also with pipeline as transition (being sleeve); Its material is the third material beyond valve body and the pipeline normally, has welding performance preferably when welding with long-distance transport pipes in the erecting bed to guarantee ball valve.
As stated, existing valve body is relatively short, need through sleeve and long-distance transport pipes welding, and when making mounting ball valve, the material kind that relates to is many, and it is big to weld difficulty; The sealed department bit comparison of the welding seam distance ball valve of valve body and sleeve welding simultaneously is near, and welding high temperature influences the sealability of ball valve easily.
The valve rod of existing long-distance transport pipes ball valve is connected the employing interference fit with valve ball, will be installed in through the valve rod of liquid nitrogen frozen in the endoporus of valve ball upper end, and then weld fixing.Because the valve ball volume is bigger, quality is heavy, is not easy to assembling.
Cooperate through cylindrical body and end face thereof between the following supporting base of ball valve and the valve ball, area of contact is big between the end face, causes accumulation of static electricity, easily initiation fire.
Summary of the invention
Material is many, the welding difficulty is big for the valve body that overcomes existing long-distance transport pipes ball valve existence relates to; Valve rod is connected complex process, is not easy to install with valve ball; Be prone to cause the deficiency of accumulation of static electricity between following supporting base and the valve ball, the present invention provides a kind of long-distance transport pipes ball valve of new structure.
The technical solution adopted for the present invention to solve the technical problems is: the long-distance transport pipes ball valve comprises valve body, valve ball, valve rod, last support, following supporting base; Valve body comprises main body, transition body; Main body is a cylindrical shape, and the transition body is positioned at the two ends of main body, and an end of transition body is shaped as circular arc; Outside diameter size and main diameter are measure-alike, and weld with body end; Last support is fixedly mounted on valve body main body upper end, and following supporting base is fixedly mounted on the lower end of valve body main body; The valve ball upper end is fixedly connected with valve rod, and the valve rod upper end portion is positioned at valve body and last support; The valve ball lower end is sitting in down on the supporting base, and the cylindrical body of following supporting base upper end is arranged in the endoporus of valve ball lower end, and the other end that valve body transition body is extended by arc transition is a cylindrical shape, and columnar diameter dimension is identical with the long-distance transport pipes diameter, and welds with long-distance transport pipes.The up-small and down-big cone of valve rod lower end is installed in the taper hole of valve ball upper end, and valve ball is fixedly connected with the valve rod welding.In the cylindrical hole of following supporting base cylindrical body upper-end surface spring is installed, in the groove of spring top and valve ball lower end steel ball is installed.The material of transition body is consistent with the material of long-distance transport pipes.Length >=the 500mm of transition body.
The invention has the beneficial effects as follows designs simplification, reasonable; Valve body material is single, is convenient to welding, and valve rod adopts cone to be connected with valve ball, is convenient to install; Effectively reduce the ball valve accumulation of static electricity, make the ball valve reliable performance; Be easy to produce in batches.
Description of drawings
Fig. 1 is a long-distance transport pipes ball-valve structure schematic representation of the present invention.
Among the figure: 1. transition body, 2. valve ball, 3. main body, 4. valve rod, 5. steel ball, 6. spring 7. descends supporting base, 8. goes up support.
Embodiment
The utility model is described further with embodiment below in conjunction with accompanying drawing 1.But what those skilled in the art should know is to the invention is not restricted to listed embodiment, as long as spirit according to the invention all should be included in protection scope of the present invention.
Long-distance transport pipes ball valve of the present invention comprises valve body, valve ball 2, valve rod 4, last support 8, following supporting base 7; Valve body comprises main body 3, transition body 1; Main body 3 is a cylindrical shape, and transition body 1 is positioned at the two ends of main body 3, and an end of transition body 1 is shaped as circular arc; The Outside diameter size is identical with main body 3 diameter dimensions, and welds with main body 3 ends; The other end that transition body 1 is extended by arc transition is a cylindrical shape, and columnar diameter dimension is identical with the long-distance transport pipes diameter, and welds with long-distance transport pipes.The material of transition body 1 can be consistent with the material of long-distance transport pipes, as: X60, X70, X80, X120 etc., can simplify welding procedure, improve welding performance, can reduce operating cost again.The length of transition body 1 should be according to API SPECIFICATION 6D---the sleeve length sum of Ball valve of pipeline (Specification for Pipeline Valves) correlation standard and customer requirements; Usually >=500mm; And process groove in advance; Can reduce of the influence of welding high temperature, improve the sealability of ball valve ball valve seal.
The last support 8 of long-distance transport pipes ball valve of the present invention is fixedly mounted on valve body main body 3 upper ends, and following supporting base 7 is fixedly mounted on the lower end of valve body main body 3, last support 8, the axis of valve body main body 3 and the axis normal of main body 3.Valve ball 2 upper ends are fixedly connected with valve rod 4, and valve rod 4 upper end portions are positioned at main body 3 and last support 8.Valve rod 4 lower ends are up-small and down-big cone, and the cone of valve rod 4 is installed in the taper hole of valve ball 2 upper ends, and valve ball 2 is fixedly connected by welding with valve rod 4.Valve rod 4 adopts cone to cooperate installation with valve ball 2, simplifies assembly technology, is convenient to assembling.
It should be noted that the foregoing description is example and unrestricted the present invention, those skilled in the art can design a lot of alternate embodiments and not break away from the claim scope of this patent.
Claims (5)
1. long-distance transport pipes ball valve; Comprise valve body, valve ball, valve rod, last support, following supporting base, valve body comprises main body, transition body, and main body is a cylindrical shape; The transition body is positioned at the two ends of main body; One end of transition body is shaped as circular arc, and Outside diameter size and main diameter are measure-alike, and welds with body end; Last support is fixedly mounted on valve body main body upper end, and following supporting base is fixedly mounted on the lower end of valve body main body; The valve ball upper end is fixedly connected with valve rod, and the valve rod upper end portion is positioned at valve body and last support; The valve ball lower end is sitting in down on the supporting base; The cylindrical body of following supporting base upper end is arranged in the endoporus of valve ball lower end; It is characterized in that: the other end that said valve body transition body (1) is extended by arc transition is a cylindrical shape, and columnar diameter dimension is identical with the long-distance transport pipes diameter, and welds with long-distance transport pipes.
2. according to the said long-distance transport pipes ball valve of claim 1, it is characterized in that: the up-small and down-big cone of said valve rod (4) lower end is installed in the taper hole of valve ball (2) upper end, and valve ball (2) is fixedly connected with valve rod (4) welding.
3. according to the said long-distance transport pipes ball valve of claim 2, it is characterized in that: in the cylindrical hole of said supporting base (7) cylindrical body upper-end surface down spring (6) is installed, in the groove of spring (6) top and valve ball (2) lower end steel ball (5) is installed.
4. according to the said long-distance transport pipes ball valve of claim 1, it is characterized in that: the material of said transition body (1) is consistent with the material of long-distance transport pipes.
5. according to the said long-distance transport pipes ball valve of claim 4, it is characterized in that: the length >=500mm of said transition body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101626432A CN102829208A (en) | 2011-06-16 | 2011-06-16 | Ball valve for long-distance pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101626432A CN102829208A (en) | 2011-06-16 | 2011-06-16 | Ball valve for long-distance pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102829208A true CN102829208A (en) | 2012-12-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101626432A Pending CN102829208A (en) | 2011-06-16 | 2011-06-16 | Ball valve for long-distance pipeline |
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| CN (1) | CN102829208A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002031254A (en) * | 2000-07-14 | 2002-01-31 | Osame Kogyo Kk | Ball valve |
| CN201351755Y (en) * | 2009-01-06 | 2009-11-25 | 上海耐莱斯·詹姆斯伯雷阀门有限公司 | All-welded valve body pipeline ball valve |
| CN201764089U (en) * | 2010-09-14 | 2011-03-16 | 上海伟伦阀门有限公司 | Small-diameter fully welded ball valve |
-
2011
- 2011-06-16 CN CN2011101626432A patent/CN102829208A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002031254A (en) * | 2000-07-14 | 2002-01-31 | Osame Kogyo Kk | Ball valve |
| CN201351755Y (en) * | 2009-01-06 | 2009-11-25 | 上海耐莱斯·詹姆斯伯雷阀门有限公司 | All-welded valve body pipeline ball valve |
| CN201764089U (en) * | 2010-09-14 | 2011-03-16 | 上海伟伦阀门有限公司 | Small-diameter fully welded ball valve |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121219 |