CN101696739A - Wear-less hard seal ball valve - Google Patents
Wear-less hard seal ball valve Download PDFInfo
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- CN101696739A CN101696739A CN200910233654A CN200910233654A CN101696739A CN 101696739 A CN101696739 A CN 101696739A CN 200910233654 A CN200910233654 A CN 200910233654A CN 200910233654 A CN200910233654 A CN 200910233654A CN 101696739 A CN101696739 A CN 101696739A
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- seat
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- 238000007789 sealing Methods 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 7
- 238000012423 maintenance Methods 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The invention provides a wear-less hard seal ball valve, which comprises a valve body, a valve cover, a valve seat, a valve ball and a driving mechanism of a valve rod and the valve ball, wherein the valve ball is arranged in the valve body, and the upper end of the valve ball is connected with the driving mechanism of the valve rod and the valve ball; two sides of the valve body are provided with a valve cover of a built-in valve seat; the internal end face of the valve seat is provided with a sealing surface corresponding to the valve ball; the upper end and lower end of the valve ball are provided with supporting shafts; two sides of the valve ball are provided with a supporting seat, an internal cavity of the supporting seat shows an internal spherical surface corresponding to the valve ball, and a clearance is reserved between the internal spherical surface and the valve ball; the internal end face of the supporting seat is provided with a semicircle orifice for clamping the supporting shaft of the valve ball, and the external end face of the supporting seat is provided with plane teeth; and the internal end face of the valve seat is provided with plane teeth of the valve seat corresponding to the plane teeth of the supporting seat. The wear-less hard seal ball valve has a reasonable structure, is easy to manufacture, reduces the production cost, effectively ensures that the sealing surface of the valve ball and the valve seat is wear-less in the processes of opening and closing the ball valve, improves the operational reliability of the ball valve, and prolongs the service life of the ball valve.
Description
Technical field
The present invention relates to a kind of valve, particularly a kind of wear-less hard seal ball valve.
Background technique
At present, ball valve has been widely used in the industries such as oil, chemical industry, electric power, metallurgy, papermaking.Conventional ball valve generally adopts soft seal, owing to be subjected to the restriction of sealing material, its Applicable temperature scope is little, high temperature resistant, high pressure and corrosivity are low, working life is shorter, adopts high parameter, the high-performance ball valve special operation condition condition as open-shut device for need, as: occasions such as ore pulp, lime-ash, dust, then can't satisfy, thereby then adopt hard seal ball valve.Existing hard seal ball valve is made up of valve body, valve gap, valve ball, valve seat and valve rod usually, and the valve ball that drives its lower end by rotation valve rod during use rotates, and makes through hole on the valve ball corresponding with the runner of valve or stagger, thus the closure or openness of realization ball valve.Because valve ball produces friction with valve seat in rotation process, serious wear easily causes leakage, has reduced the functional reliability of ball valve, has shortened the working life of ball valve.Come out although also have or not the hard sealing of mill to decrease ball valve at present, its structure is complicated, be difficult for processing, cost of production is higher, uses, maintenance is not very convenient.
Summary of the invention
For overcoming the deficiencies in the prior art part, the invention provides a kind of rational in infrastructure, be easy to process, cost of production is low, do not have wearing and tearing, long service life, use and wear-less hard seal ball valve easy to maintenance between valve ball and the sealing surface of seat, and high temperature resistant, high pressure, good seal performance.
The technical solution adopted for the present invention to solve the technical problems is: comprise valve body, valve gap, valve seat, valve ball and valve rod valve ball driving mechanism; Be provided with the valve ball of band through hole in the valve body, the upper end of valve ball links to each other with valve rod valve ball driving mechanism; The left and right valve gap of band runner is equipped with in the both sides of valve body; Left and right valve seat is loaded on respectively in the left and right valve gap, is positioned at the both sides of valve ball; Seating spring is equipped with in the outer end of valve seat; Left and right valve seat interior edge face is provided with and the corresponding sealing surface of valve ball; It is characterized in that: the back shaft that is provided with protrusion at the two ends up and down of valve ball; Be provided with the left and right supporting base of ring-type in the both sides of valve ball, the inner chamber of left and right supporting base is and the corresponding inner ball surface of valve ball, leaves the gap between this inner ball surface and the valve ball; On the interior edge face of left and right supporting base, be provided with the semicircle orifice of holding valve ball back shaft, on the exterior edge face of left and right supporting base, be provided with left and right supporting base flat-teeth; On the interior edge face of left and right valve seat, then be provided with and the corresponding valve seat planes tooth of left and right supporting base flat-teeth.
Above-mentioned valve ball driving mechanism includes valve rod and outer valve rod; Valve rod places in the outer valve rod, and the square key of valve rod lower end places in the square key connection slot of valve ball upper end, works as rotation valve rod, makes through hole on the valve ball corresponding with the runner of valve ball or stagger; The triangular cam of outer valve rod lower end places in the triangular cam connection slot of valve ball upper end, and valve rod outside rotating makes the rotational of valve ball along the ball valve runner.
The profile of tooth of the valve seat planes tooth of above-mentioned left and right valve seat and the supporting base flat-teeth of left and right supporting base is trapezoidal, semicircle, triangle or concavo-convex wheel shape.
The inner ball surface of above-mentioned left and right supporting base and the gap between the valve ball are 0.3～0.8mm.
Above-mentioned valve rod valve ball driving mechanism or be a kind of in gear type driving mechanism, worm-gear type driving mechanism, the Lever type driving mechanism.
It is rational in infrastructure in the present invention, is easy to make, and has reduced cost of production, ball valve valve ball and the wearing and tearing of sealing surface of seat realization nothing in the open and close process have been guaranteed effectively, thereby improved the functional reliability of ball valve, prolonged the working life of ball valve, and high temperature resistant, high pressure, good seal performance.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the structural representation of valve ball among the present invention;
Fig. 3 is the A-A sectional view of Fig. 2;
Fig. 4 is the plan view of Fig. 2;
Fig. 5 is the structural representation of left valve seat among the present invention;
Fig. 6 is the left view of Fig. 5;
Fig. 7 is the expansion schematic representation of Fig. 6 midplane tooth;
Fig. 8 is the structural representation of left supporting base of the present invention;
Fig. 9 is the B-B sectional view of Fig. 8;
Figure 10 is the rear view of Fig. 8;
Figure 11 is the expansion schematic representation of Figure 10 midplane tooth;
Figure 12 is the structural representation of valve ball driving mechanism of the present invention;
Figure 13 is the left view of Figure 12;
Figure 14 is meshed with the supporting base flat-teeth for valve seat planes tooth of the present invention, sealing surface of seat applying valve ball, the structural representation when being in sealing state;
The position view of the triangular cam 12 of valve rod 11 when Figure 15 is meshed with the supporting base flat-teeth for valve seat planes tooth of the present invention;
The position view of the triangular cam 12 of valve rod 11 when Figure 16 is separated for valve seat planes tooth of the present invention and supporting base flat-teeth.
Among the figure: 1 is left valve gap, 2 is left seating spring, 3 is left valve seat, 4 is left sealing surface of seat, 5 is left valve seat planes tooth, 6 is left supporting base flat-teeth, 7 is valve ball, 8 is left supporting base, 9 is valve body, 10 is valve rod, 11 is outer valve rod, 12 is triangular cam, 13 is square key, 14 is right supporting base, 15 is right supporting base flat-teeth, 16 is right valve seat planes tooth, 17 is right sealing surface of seat, 18 is right valve seat, 19 is right seating spring, 20 is right valve gap, 21 is the upper support axle, 22 is the lower support axle, 23 is the triangular cam connection slot, 24 is the square key connection slot, 25 is semicircle orifice, 26 is left valve gap supporting surface, 27 is left supporting base supporting surface, 28 is right valve gap supporting surface, 29 is right supporting base supporting surface, 30,31 is seal ring.
Embodiment
Below in conjunction with accompanying drawing the present invention is described in further detail.
The present invention includes valve body 9, valve gap 1,20, valve seat 3,18, supporting base 8,14, valve ball 7 and valve rod valve ball driving mechanism; Be provided with the valve ball 7 of band through hole in the valve body 9, the left and right valve gap 1,20 that has runner is equipped with in the both sides of valve body 9; Left and right valve seat 3,18 is loaded on respectively in the left and right valve gap 1,20, is positioned at the both sides of valve ball 7; The outer end of left and right valve seat 3,18 is equipped with left and right seating spring 2,19 respectively, is respectively equipped with seal ring 30,31 between left and right valve seat 3,18 and the left and right valve gap 1,20; Be respectively equipped with on left and right valve seat 3,18 interior edge faces and valve ball 7 corresponding left sealing surface of seat 4 and right sealing surface of seats 17.Be provided with the upper and lower back shaft 21,22 of protrusion at the two ends up and down of valve ball 7; Be provided with the left and right supporting base 8,14 of ring-type in the both sides of valve ball 7; The inner chamber of left and right supporting base 8,14 is and valve ball 7 corresponding inner ball surface, leaves the gap between this inner ball surface and the valve ball 7, and this gap is 0.3～0.8mm, does not contact with the inner ball surface of left and right supporting base 8,14 when valve ball 7 is rotated; On the interior edge face of left and right supporting base 8,14, be respectively equipped with the semicircle orifice 25 of the upper and lower back shaft 21,22 of holding valve ball 7, on the exterior edge face of left and right supporting base 8,14, be respectively equipped with left and right supporting base flat- teeth 6,15; On the interior edge face of left and right valve seat 3,18, then be respectively equipped with and left and right supporting base flat- teeth 6,15 corresponding left and right valve seat planes teeth 5,16.Described left and right supporting base flat- teeth 6,15 and left and right valve seat planes tooth 5,16 are trapezoidal (perhaps being semicircle, triangle, concavo-convex wheel shape).The helicoid of above-mentioned left and right sides valve seat planes tooth 5,16 and left and right sides supporting base flat- teeth 6,15 is A-B, D-E .... and A '-B ', D '-E ' ....; B-C, E-F .... and B '-C ', E '-F ' ... be tooth top.Above-mentioned left and right sides valve seat planes tooth 5,16 and left and right sides supporting base flat- teeth 6,15 are divided equally with the N equal portions.Left and right valve gap supporting surface 26,28 and left and right supporting base supporting surface 27,29 join; Tooth depth L, the L ' of above-mentioned left and right sides valve seat planes tooth 5,16 and left and right sides supporting base flat- teeth 6,15 is standard with sealing surface of seat 4,17 applying valve balls 7, to reach desirable sealing effect.Valve rod valve ball driving mechanism also is housed on the upper support axle 21 of valve ball 7; Described valve rod valve ball driving mechanism is cammingly driving mechanism (perhaps in the gear type driving mechanism, worm-gear type driving mechanism, Lever type driving mechanism a kind of), and it includes valve rod 10 and outer valve rod 11; Valve rod 10 places in the outer valve rod 11; The square key 13 of valve rod 10 lower ends places in the square key connecting groove 24 of valve ball 7 upper ends, when rotation valve rod 10, makes through hole on the valve ball 7 corresponding with the runner of ball valve or stagger; The triangular cam 12 of outer valve rod 11 lower ends places in the triangular cam connection slot 23 of valve ball 7 upper ends, and valve rod 11 outside rotating makes the rotational several angle of valve ball 7 along the ball valve runner.
When opening ball valve, at first rotate outer valve rod 11, under the effect of its triangular cam 12 and triangular cam connection slot 23, make valve ball 7 (turn to Figure 16 as Figure 15 along the rotational several angle of ball valve runner, shown in dot and dash line represent the rotation angle of valve ball 7), upper and lower back shaft 21,22 by valve ball 7 drives left and right supporting base 8,14 rotations, flat- teeth 5,16 on the left and right valve seat 3,18 and the flat- teeth 6,15 on the left and right supporting base 8,14 are separated, thereby valve ball 7 is separated with left and right sealing surface of seat 4,17; Then, rotation valve rod 10 again, under the effect of square key 13 and square key connection slot 24, make valve ball 7 rotate 90 °, and the through hole on the valve ball 7 is corresponding with the runner of ball valve, thereby realizes the unlatching of ball valve.
When closing ball valve, then the counter-rotation valve rod 10, under the effect of the square key 13 of valve rod 10 and square key connection slot 24, drive valve ball 7 and rotate 90 °, and the through hole on the valve ball 7 is staggered mutually with the runner of ball valve; Then, the outer valve rod 11 of counter-rotation again, under the effect of triangular cam 12 and triangular cam connection slot 23, make valve ball 7 (turn to Figure 15 as Figure 16 along the axis backward rotation several angle of ball valve runner, shown in dot and dash line represent the rotation angle of valve ball 7), on valve ball 7, lower support axle 21,22, drive supporting base 8,14 rotate, and in seating spring 2, under 19 the effect, make a left side, right valve seat planes tooth 5,16 respectively with a left side, right supporting base flat- teeth 6,15 are meshed, a valve ball 7 and a left side, right sealing surface of seat 4,17 fit, and reach desirable sealing effect.
Wear-less hard seal ball valve of the present invention because in valve ball 7 open and close processes, left and right sealing surface of seat 4,17 does not contact valve ball 7, does not therefore produce wearing and tearing; Its rational in infrastructure, long service life, use and easy to maintenance.
Claims (5)
1. a wear-less hard seal ball valve comprises valve body, valve gap, valve seat, valve ball and valve rod valve ball driving mechanism; Be provided with the valve ball of band through hole in the valve body, the upper end of valve ball links to each other with valve rod valve ball driving mechanism; The left and right valve gap of band runner is equipped with in the both sides of valve body; Left and right valve seat is loaded on respectively in the left and right valve gap, is positioned at the both sides of valve ball; Seating spring is equipped with in the outer end of valve seat; Left and right valve seat interior edge face is provided with and the corresponding sealing surface of valve ball; It is characterized in that: the back shaft that is provided with protrusion at the two ends up and down of valve ball; Be provided with the left and right supporting base of ring-type in the both sides of valve ball, the inner chamber of left and right supporting base is and the corresponding inner ball surface of valve ball, leaves the gap between this inner ball surface and the valve ball; On the interior edge face of left and right supporting base, be provided with the semicircle orifice of holding valve ball back shaft, on the exterior edge face of left and right supporting base, be provided with left and right supporting base flat-teeth; On the interior edge face of left and right valve seat, then be provided with and the corresponding valve seat planes tooth of left and right supporting base flat-teeth.
2. a kind of wear-less hard seal ball valve according to claim 1 is characterized in that: above-mentioned valve ball driving mechanism includes valve rod and outer valve rod; Valve rod places in the outer valve rod, and the square key of valve rod lower end places in the square key connection slot of valve ball upper end; The triangular cam of outer valve rod lower end places in the triangular cam connection slot of valve ball upper end.
3. a kind of wear-less hard seal ball valve according to claim 1 is characterized in that: the profile of tooth of the valve seat planes tooth of above-mentioned left and right valve seat and the supporting base flat-teeth of left and right supporting base is trapezoidal, semicircle, triangle or concavo-convex wheel shape.
4. a kind of wear-less hard seal ball valve according to claim 1 is characterized in that: the inner ball surface of above-mentioned left and right supporting base and the gap between the valve ball are 0.3～0.8mm.
5. a kind of wear-less hard seal ball valve according to claim 1 and 2 is characterized in that: above-mentioned valve rod valve ball driving mechanism is a kind of in gear type driving mechanism, worm-gear type driving mechanism, the Lever type driving mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102336548A CN101696739B (en) | 2009-10-02 | 2009-10-02 | Wear-less hard seal ball valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102336548A CN101696739B (en) | 2009-10-02 | 2009-10-02 | Wear-less hard seal ball valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101696739A true CN101696739A (en) | 2010-04-21 |
| CN101696739B CN101696739B (en) | 2011-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102336548A Expired - Fee Related CN101696739B (en) | 2009-10-02 | 2009-10-02 | Wear-less hard seal ball valve |
Country Status (1)
| Country | Link |
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| CN (1) | CN101696739B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937194A (en) * | 2012-11-16 | 2013-02-20 | 镇江市华阳机电制造有限公司 | Integral sealed connecting rod ball valve |
| CN102966752A (en) * | 2012-11-22 | 2013-03-13 | 浙江中德自控阀门有限公司 | Solid powder regulation ball valve |
| CN103375602A (en) * | 2012-04-12 | 2013-10-30 | 上海浦东汉威阀门有限公司 | Open valve seat type ball valve |
| CN104455529A (en) * | 2014-11-25 | 2015-03-25 | 天津百利展发集团有限公司 | Double-eccentric spherical valve sealing structure |
| CN110259980A (en) * | 2019-06-17 | 2019-09-20 | 青岛启旋能源装备科技有限公司 | A kind of rotation clutch operating apparatus |
| CN112005036A (en) * | 2018-05-28 | 2020-11-27 | 株式会社不二工机 | Flow path switching valve and method for manufacturing same |
-
2009
- 2009-10-02 CN CN2009102336548A patent/CN101696739B/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103375602A (en) * | 2012-04-12 | 2013-10-30 | 上海浦东汉威阀门有限公司 | Open valve seat type ball valve |
| CN102937194A (en) * | 2012-11-16 | 2013-02-20 | 镇江市华阳机电制造有限公司 | Integral sealed connecting rod ball valve |
| CN102966752A (en) * | 2012-11-22 | 2013-03-13 | 浙江中德自控阀门有限公司 | Solid powder regulation ball valve |
| CN104455529A (en) * | 2014-11-25 | 2015-03-25 | 天津百利展发集团有限公司 | Double-eccentric spherical valve sealing structure |
| CN112005036A (en) * | 2018-05-28 | 2020-11-27 | 株式会社不二工机 | Flow path switching valve and method for manufacturing same |
| CN112005036B (en) * | 2018-05-28 | 2022-06-03 | 株式会社不二工机 | Flow path switching valve and method for manufacturing same |
| CN110259980A (en) * | 2019-06-17 | 2019-09-20 | 青岛启旋能源装备科技有限公司 | A kind of rotation clutch operating apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101696739B (en) | 2011-05-11 |
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Addressee: Du Feng Document name: Notification that Application Deemed not to be Proposed |
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Owner name: JIANHU YONGJIA MACHINERY CO., LTD. Free format text: FORMER OWNER: ZHU XIAOFENG Effective date: 20130425 |
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Free format text: CORRECT: ADDRESS; FROM: 224743 YANCHENG, JIANGSU PROVINCE TO: 224721 YANCHENG, JIANGSU PROVINCE |
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Effective date of registration: 20130425 Address after: Chinese Industrial Park Qingfeng town 224721 crown in Jianhu County of Jiangsu Province Patentee after: JIANHU YONGJIA MACHINERY CO., LTD. Address before: 224743 pagoda Jianhu County of Jiangsu Province town before the village neighborhood before Zhuang Group No. 30 Patentee before: Zhu Xiaofeng |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110511 Termination date: 20181002 |
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| CF01 | Termination of patent right due to non-payment of annual fee |