CN102844598B - Valve element of butterfly valve - Google Patents
Valve element of butterfly valve Download PDFInfo
- Publication number
- CN102844598B CN102844598B CN201080066172.9A CN201080066172A CN102844598B CN 102844598 B CN102844598 B CN 102844598B CN 201080066172 A CN201080066172 A CN 201080066172A CN 102844598 B CN102844598 B CN 102844598B
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- Prior art keywords
- spool
- substrate
- valve
- peripheral
- center
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- Expired - Fee Related
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/16—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members
- F16K1/18—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps
- F16K1/22—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with pivoted closure-members with pivoted discs or flaps with axis of rotation crossing the valve member, e.g. butterfly valves
- F16K1/222—Shaping of the valve member
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
- Sliding Valves (AREA)
Abstract
Provided is a valve element of a butterfly valve, wherein the rigidity of the valve element is increased, the operation torque of the butterfly valve is reduced, and the operation of the butterfly valve is facilitated. A cylindrical portion extending diametrically is formed on the center of a disk-shaped base plate constituting a valve element so that the cylindrical portion protrudes on the front and back sides of the base plate. A valve shaft insertion hole is provided in the cylindrical portion, and a plurality of circular ribs intersecting and in contact with the cylindrical portion are coaxially projected on the front and back sides of the base plate. Furthermore, the outermost peripheral rib is disposed along the edge of the base plate, and the outer diameter of the center of the cylindrical portion is larger than the outer diameter of an end of the cylindrical portion.
Description
Technical field
The present invention relates to a kind of spool of the fly valve that opens and closes, regulates for pipeline water supply, gas, wet goods fluid being flow through at piping system.
Background technique
In the past, in valve cap cylindraceous so that valve core rotation freely mode axle support plate disc shape spool, by being arranged on the simple structure of contact and the separated fly valve that pipeline is opened and closed between the seat ring being formed by resilient member on valve cap inner peripheral surface and spool outer circumferential face, so be widely used in the flow control of various fluids.Conventionally, fly valve has such function: by utilizing the driver drives valve rod rotations such as motor, pressure cylinder to make valve core rotation, make spool peripheral part and pipeline is opened and closed with separated with respect to the seat ring contact that is arranged on week in valve cap, in addition, utilize the gap length between spool peripheral part and seat ring to change flow path area, thereby adjust fluid flow.
It is to realize by spool peripheral part and as the crimping between elastomeric seat ring that valve cuts out, but in the process opening and closing at spool, because spool peripheral part contacts the interaction force producing with seat ring, is a reason that produces valve operation torque.Thereby by reducing this interaction force, the operation torque of valve reduces, make valve operation transfiguration easy.And spool bears the pressure of fluid mobile in pipeline, in the position of having closed stream completely, the whole fluid pressures in pipeline are carried on spool face, and the hydrodynamic pressure that spool is applied becomes maximum.Because bear the spool distortion of hydrodynamic pressure, therefore,, for pipeline is entirely shut, need to there be the overlapping part of inferior limit (sealing strip) the valve base sealing position of the spool under the distortion of spool and seat ring, in order to maintain valve base sealing, the rigidity that spool is had relatively high expectations.
As the method that improves spool rigidity, conventionally can deal with by increasing the thickness of spool, but because the quality of spool also increases, therefore, when cost raises, weight becomes large, to operation, makes troubles.Therefore, in order to address this problem, proposed along fluid flow through direction spool face arrange rib method (patent documentation 1), valve core inside is set as hollow and on structural mechanics, guarantees method (patent documentation 2) of rigidity etc.Yet, on spool, arrange in the method for rib, although rigidity is higher for the stress of the configuration direction of rib, with respect to rib, there is in the direction of predetermined angle the rigidity step-down of spool.For example, along with the flowing through direction that direction is identical dispose rib on spool of fluid in the situation that, if for example, be under pressure from the direction (becoming the direction of 45 degree with rib) different from flowing through direction, likely cause spool deflection, the sealing station place between spool peripheral part and seat ring to produce dislocation, valve base sealing reduces.In addition, in the situation that fly valve is less, because the size of spool is restricted, therefore, sometimes spool cannot be formed at valve core inside the shape on the such structural mechanics of blank part is set.
On the other hand, because of the crimping of spool peripheral part and slide on the rotating torques that frictional force impact that seat ring produces makes the valve rod of valve core rotation.Particularly,, spool lower in the rigidity of spool holds in yielding situation, for keeping bubble-tight necessity, need to increase the area of contact between spool peripheral part and seat ring, so frictional force increases, and it is large that rotating torques becomes.Thereby, in order to improve the operability of fly valve, reduce the energy of the motor that makes valve rod rotation, importantly improve spool rigidity, and improve the shape of spool peripheral part, thereby the frictional force between minimizing and seat ring suppresses the rotating torques of valve rod.Central authorities between the hub portion that therefore, has proposed the shape orientation of the chevron sealed department on the inner peripheral surface that is arranged on seat ring for spool outer circumferential face butt to run through for valve rod form take the curve shape (patent documentation 3) of the cosine function that hub portion is basic point.
Patent documentation 1: TOHKEMY 2004-239343 communique
Patent documentation 2: Japanese kokai publication hei 9-60751 communique
Patent documentation 3: Japanese kokai publication sho 55-142169 communique
Summary of the invention
Problem of the present invention is to provide a kind of operation torque that improves the rigidity of spool and reduce valve, valve operation is become is easy to the spool of fly valve.
The 1st technological scheme is a kind of spool of fly valve, it is characterized in that, the cylindrical part of extending along the diametric(al) that forms the discoideus substrate of spool is formed on to the center of this substrate in the mode at substrate surface and back side protuberance, in this cylindrical part, wear valve rod patchhole, and a plurality of circular rib that intersect with this cylindrical part and contact are formed on the surface and the back side of substrate to be the mode of concentric circles protuberance.
The 2nd technological scheme is characterised in that, the rib of most peripheral is set along the edge of substrate.
The 3rd technological scheme is characterised in that, the central external diameter of cylindrical part is made as to the external diameter that is greater than end.
The 4th technological scheme is characterised in that, the thickness of the central part of substrate is made as to maximum, the thickness of the peripheral part of substrate is made as to minimum, and, that the angle of inclination of the part of being separated by the circular rib of concentric circles of substrate surface is made as to substrate surface with below the angle of inclination adjacent part of central side.
The invention is characterized in, consist of the peripheral part of spool a part for sphere, the straight line that utilizes tangent line with respect to the outermost circumference end of peripheral part to have 30 degree～50 degree angles links the circular rib of most peripheral and the spool peripheral part consisting of sphere.
According to the present invention, owing to the cylindrical part of extending along the diametric(al) that forms the discoideus substrate of spool is formed on to the center of this substrate in the mode at substrate surface and back side protuberance, therefore, this cylindrical part becomes the skeleton of burden spool intensity, and, due to by a plurality of circular rib of extending with concentric circles to intersect with this cylindrical part and to contact and the mode of swelling is formed on surface and the back side of substrate, therefore, in becoming in the cross section of any angle with respect to center spool line of spool, can both obtain roughly uniform section factor, the rigidity of spool is roughly even in whole spool, thereby can obtain the spool that rigidity is higher.Because cylindrical part becomes the fulcrum of circular rib for the pressure bearing, therefore terminate in minimum distortion.In addition, by making cylindrical part intersect and contact with the circular rib of spool peripheral part, can improve near the rigidity of the spool peripheral part of valve rod hole, therefore can improve the sealing stability of valve rod seat ring around.
By the thickness of the central part of substrate is made as to maximum, the thickness of the peripheral part of this substrate is made as to minimum, and the angle of inclination that makes the part of being separated by the circular rib of concentric circles of substrate surface is made as that be less than substrate surface and the angle of inclination adjacent part of central side, make spool par be tilted between each rib from center spool outward perimembranous remove to become cone shape, and, due to this be tilted in center maximum and outward perimembranous go and diminish gradually, therefore, make the cross-sectional strength equalization for pressure, and can lightweight.
By the straight line that utilizes tangent line with respect to the outermost circumference end of peripheral part to there are 30 degree～50 degree angles, link the circular rib of most peripheral and the spool peripheral part being formed by sphere, at spool, from being opened to, closing or open while moving from being closed to, suppress to form the elastomer of seat ring, thereby can eliminate the resistance of the spool that the protuberance because of surface of elastomer produces, reduce the torque drag that the interaction by spool and seat ring causes.In addition, making edge because of spool pull produced elastomeric fatigue to elastomer becomes inferior limit, can seek to improve the switching durability of valve.And, due to the area of contact that can increase between spool and seat ring, therefore, even having produced distortion in the situation that because contacting with spool time lapse in seat ring, also can maintain seal.
Accompanying drawing explanation
Fig. 1 is plan view (A) and the Y-Y sectional view (B) of fly valve.
Fig. 2 is the 1st embodiment's spool stereogram.
Fig. 3 is that cylindrical part is along the central cross-sectional view of center line.
Fig. 4 is the plan view of the 1st embodiment's spool.
Fig. 5 be the 1st embodiment spool become the central cross-sectional view of 90 degree with center line.
Fig. 6 be the 1st embodiment spool become the central cross-sectional view of 45 degree with center line.
Fig. 7 be the 1st embodiment spool become the central cross-sectional view of 30 degree with center line.
Fig. 8 is for reducing the schematic diagram of valve core rotation torque.
Fig. 9 is the amplification view of spool peripheral part.
Figure 10 is the 2nd embodiment's spool stereogram.
Embodiment
Below, use accompanying drawing explanation embodiments of the present invention.Reference character in Fig. 1 (1) is fly valve main body, and it has the stream of open circles tubular, utilizes by valve rod (3), the supporting of (4) axle and for rotating discoideus freely spool (2), the stream of open circles tubular is opened and closed.Hollow cylinder portion inner peripheral surface at valve body (1) is provided with the seat ring (5) consisting of elastomer, makes the outer circumferential face of spool (2) contact this seat ring (5) and leave this seat ring (5), and valve is opened and closed.
With reference to Fig. 2, spool (2) consists of discoideus substrate (6), has the cylindrical part (7) of inserting for valve rod at the center of substrate (6).The shape of cylindrical part (7) for heaving from surface and the back side of substrate (6).The shape of this cylindrical part (7) can increase the section factor in center spool line (8) direction, thereby can improve spool for the rigidity of the pressure of the direction from vertical with center spool line (8).Cylindrical part (7) is made as and passes through hollowly, or it is hollow to be made as two end part.Which kind of situation no matter, the central authorities of this cylindrical part are easy to moulding aspect casting.In addition, can utilize minimum material to obtain sufficient rigidity, thereby can make spool lightweight.And, Fig. 2 is the shape at the center of substrate (6) with the cylindrical part (7) of inserting for valve rod, but be not limited to this shape, can be also center spool line (8) with the center line of cylindrical part, there is the spool of the so-called eccentric type of certain distance with the spin axis of valve rod.
Fig. 3 represents the central cross-sectional view along center spool line (8) of cylindrical part (7).In order to improve the rigidity of spool (2), the sectional shape of cylindrical part (7) is made as, and the external diameter of core (9) is greater than the external diameter (10) of valve rod patchhole, in addition, accompanies therewith, and the internal diameter of core (11) is greater than the internal diameter (12) of valve rod patchhole.In addition, as shown in Figure 5, becoming in the center spool sectional view of 90 degree with center spool line (8), because the sectional area of cylindrical part (7) is larger, spool section factor is larger, therefore, the power for becoming with center line in the direction (direction or lower direction in Fig. 3 being) of 90 degree, can make the distortion of spool minimum.In addition, due to the cross-sectional strength equalization for pressure, therefore, unnecessary thickness needn't be set, can make spool lightweight.
According to the size of spool, sometimes the external diameter of core is made as to the external diameter that is less than valve rod patchhole.Its reason is, although the external diameter of core corresponding to the size of spool, diminish, from the viewpoint of intensity, more than the rugosity of valve rod need to maintain to a certain degree.In this case, the internal diameter of core is also less than the internal diameter of valve rod patchhole, or the blank part of core disappears.
Rib (13) is provided with a plurality of (Fig. 2, Fig. 4) with concentric circles on the surface of substrate (6) and the back side, by making the end of each rib (13) and the engage sides of cylindrical part (7) become the spool of rigid uniform.Fig. 5, Fig. 6, Fig. 7 mean the central cross-sectional view that become 30 degree, 45 degree, 90 degree with the center spool line of the spool of Fig. 4, but the section factor except cylindrical part in each cross section is close, when spool (2) has been applied to the pressure of fluid, due to the stress of spool (2) in whole spool by equalization, so spool can not be out of shape.
The rib (13) of most peripheral is set by the edge along substrate (6), the end of rib is engaged in to the side of cylindrical part (7), can improve near valve rod patchhole, in the situation that making valve core rotation, be applied in the rigidity of the part of maximum, force, thereby can improve the sealing stability of spool (2) and seat ring (5).
Then, use Fig. 5 to describe the shape of substrate (6).Fig. 5 means the center spool sectional view that becomes 90 degree with center spool line (8).The sectional shape of substrate (6) for more approach cylindrical part (center) thicker, more approach the thinner shape of acies (periphery).In addition, if by the substrate surface of being separated by rib (13) from a face near cylindrical part start to be called in order face 1, face 2 ..., face (n-1), face n, by each face with respect to the angle of inclination of substrate center be made as α 1, α 2 ..., α (n-1), α n, the angle of inclination of substrate become α 1 >=α 2 >=... the shape of >=α n-1 >=α n.By being set as this shape, for the cross-sectional strength of pressure by equalization, thereby can lightweight.
Fig. 8 represents the schematic diagram that the rotating torques to utilizing the edge shape of spool peripheral part to reduce spool describes.Spool carries out closing operation to the direction of arrow, or carries out opening operation round about.For example, in the situation that carry out closing along the direction of arrow of Fig. 8 the operation of spool, the surface of elastomer of the formation seat ring of being pressed by the edge of spool (15) protuberance, becomes the obstruction of spool closing motion.Spool of the present invention edge (15) connects sphere processing department and the rib of the peripheral part (16) of spool by the straight line that utilizes tangent line with respect to the outermost circumference end of peripheral part (16) to have 30 degree～50 degree angles, suppress spool edge elastomeric protuberance below, making becomes inferior limit because of the resistance that elastomeric protuberance produces.Thus, eliminate the resistance to spool, reduce the torque drag that the interaction force by spool and seat ring brings.In addition, make, because the edge of spool pulls produced elastomeric fatigue and becomes inferior limit elastomeric, to improve the switching durability of valve.
Fig. 9 represents the amplification cross section of spool peripheral part.The straight line that the angle [alpha] of utilizing with the tangent line of the outermost circumference end of the peripheral part (16) of spool is shown is 30 degree～50 degree links the sphere processing department of peripheral part (16) of spool and the shape of rib.Angle [alpha] utilizes the edge (15) of spool to affect elastomeric protuberance, by this angle being made as to 30 degree～50 degree, maintains the tightness of spool, and makes to become inferior limit because of the resistance that elastomeric protuberance produces.That is,, if this angle is less than 30 degree, if this angle of resistance increase is greater than 50 degree, likely cannot maintain sealing stability.In addition, angle [alpha] most preferably is 45 degree.
description of reference numerals
1, main body; 2, spool; 3, upper valve rod; 4, lower valve rod; 5, seat ring; 6, substrate; 7, cylindrical part; 8, center spool line; 9, core external diameter; 10, the external diameter of valve rod patchhole; 11, the internal diameter of core; 12, the internal diameter of valve rod patchhole; 13, rib; 14, the ridge of seat ring; 15, edge; 16, peripheral part.
Claims (5)
1. a spool for fly valve, is characterized in that,
The cylindrical part of extending along the diametric(al) that forms the discoideus substrate of spool is formed on to the center of this substrate in the mode at substrate surface and back side protuberance, in this cylindrical part, wear valve rod patchhole, and a plurality of circular rib that intersect with this cylindrical part and contact are formed on the surface and the back side of substrate to be the mode of concentric circles protuberance
The thickness of the central part of substrate is made as to maximum, the thickness of the peripheral part of substrate is made as to minimum, and, the part of being separated by the circular rib of concentric circles of substrate surface is made as to substrate surface with respect to the angle of inclination of substrate center with below the angle of inclination of the adjacent part of central side with respect to substrate center.
2. the spool of fly valve according to claim 1, is characterized in that,
The rib of most peripheral is set along the edge of substrate.
3. the spool of fly valve according to claim 1 and 2, is characterized in that,
The central external diameter of cylindrical part is made as to the external diameter that is greater than end.
4. the spool of fly valve according to claim 1 and 2, is characterized in that,
A part for sphere, consist of the peripheral part of spool, the straight line that utilizes tangent line with respect to the outermost circumference end of peripheral part to have 30 degree～50 degree angles links the circular rib of most peripheral and the spool peripheral part consisting of sphere.
5. the spool of fly valve according to claim 3, is characterized in that,
A part for sphere, consist of the peripheral part of spool, the straight line that utilizes tangent line with respect to the outermost circumference end of peripheral part to have 30 degree～50 degree angles links the circular rib of most peripheral and the spool peripheral part consisting of sphere.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2010/056594 WO2011128974A1 (en) | 2010-04-13 | 2010-04-13 | Valve element of butterfly valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102844598A CN102844598A (en) | 2012-12-26 |
| CN102844598B true CN102844598B (en) | 2014-03-12 |
Family
ID=43952804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201080066172.9A Expired - Fee Related CN102844598B (en) | 2010-04-13 | 2010-04-13 | Valve element of butterfly valve |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP4659927B1 (en) |
| KR (1) | KR101476518B1 (en) |
| CN (1) | CN102844598B (en) |
| WO (1) | WO2011128974A1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013010123A1 (en) * | 2013-06-18 | 2014-12-18 | Erhard Gmbh & Co. Kg | Armature for shutting off or regulating a medium |
| JP6753694B2 (en) * | 2016-05-17 | 2020-09-09 | 株式会社ミクニ | Valve device |
| WO2020175673A1 (en) | 2019-02-28 | 2020-09-03 | 株式会社キッツ | Valve body of double eccentric butterfly valve, and double eccentric butterfly valve |
| JP6959953B2 (en) * | 2019-03-26 | 2021-11-05 | Ckd株式会社 | Butterfly valve |
| DK3722642T3 (en) * | 2019-04-10 | 2022-03-28 | Fischer G Rohrleitungssysteme Ag | LOCK SHUTTER |
| CN112360997B (en) * | 2020-10-27 | 2022-08-09 | 祥安消防科技有限公司 | Fire control butterfly valve of high gas tightness |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1519496A (en) * | 2003-02-05 | 2004-08-11 | 株式会社巴技术研究所 | Valve body of miter valve |
| CN101225773A (en) * | 2007-01-16 | 2008-07-23 | 株式会社日立制作所 | Butterfly valve device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0362269A (en) * | 1989-07-31 | 1991-03-18 | Nec Corp | Method and device for approximating line image |
| JPH0362269U (en) * | 1989-10-23 | 1991-06-18 | ||
| JPH0564576A (en) * | 1991-09-06 | 1993-03-19 | Tabai Espec Corp | Column type culturing device |
| JPH0564576U (en) * | 1992-02-07 | 1993-08-27 | 株式会社巴技術研究所 | Butterfly valve disc |
| JP2852009B2 (en) * | 1995-08-22 | 1999-01-27 | 株式会社栗本鐵工所 | Housing structure of high temperature and high pressure fluid valve |
| JP4713971B2 (en) * | 2005-07-26 | 2011-06-29 | 東洋バルヴ株式会社 | Butterfly valve |
-
2010
- 2010-04-13 WO PCT/JP2010/056594 patent/WO2011128974A1/en active Application Filing
- 2010-04-13 CN CN201080066172.9A patent/CN102844598B/en not_active Expired - Fee Related
- 2010-04-13 JP JP2010529586A patent/JP4659927B1/en not_active Expired - Fee Related
- 2010-04-13 KR KR1020127028467A patent/KR101476518B1/en active IP Right Grant
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1519496A (en) * | 2003-02-05 | 2004-08-11 | 株式会社巴技术研究所 | Valve body of miter valve |
| CN101225773A (en) * | 2007-01-16 | 2008-07-23 | 株式会社日立制作所 | Butterfly valve device |
Non-Patent Citations (3)
| Title |
|---|
| JP特开2007-32683A 2007.02.08 |
| JP特开2008-175064A 2008.07.31 |
| JP特开平9-60751A 1997.03.04 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102844598A (en) | 2012-12-26 |
| KR101476518B1 (en) | 2014-12-24 |
| WO2011128974A1 (en) | 2011-10-20 |
| JPWO2011128974A1 (en) | 2013-07-11 |
| JP4659927B1 (en) | 2011-03-30 |
| KR20130040852A (en) | 2013-04-24 |
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Effective date of registration: 20161214 Address after: Japan Osaka Patentee after: Valve Co., Ltd. Address before: Japan Osaka Patentee before: Tomoe Technical Research Co. |
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