CN2135699Y - Metal shaped ring hard sealing high low temp. butterfly valve - Google Patents
Metal shaped ring hard sealing high low temp. butterfly valve Download PDFInfo
- Publication number
- CN2135699Y CN2135699Y CN 92227729 CN92227729U CN2135699Y CN 2135699 Y CN2135699 Y CN 2135699Y CN 92227729 CN92227729 CN 92227729 CN 92227729 U CN92227729 U CN 92227729U CN 2135699 Y CN2135699 Y CN 2135699Y
- Authority
- CN
- China
- Prior art keywords
- shaped ring
- metal special
- metal
- ring
- butterfly valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Abstract
The utility model relates to a hard sealing butterfly valve with a metal shaped ring for a high temperature and a low temperature. The utility model which is provided with the metal shaped ring 1 and a butterfly disk 3 that form a sealing pair is characterized in that the metal shaped ring is composed of a circular flat surface and a circular ring with an opening; the metal shaped ring are formed by one layer to three layers of elastic metal with a thin wall, or one layer to three layers of stainless steel material which is being stamped or hydraulically pressed. The inner cavity of the metal shaped ring is provided with a ring spring 2 which is coiled by an ordinary spring for reinforcing the replacement ability of the metal shaped ring 1. The utility model which is of good sealing performance when working under the condition of media with a high temperature and a low temperature has the ability of bearing repeated motion without invalidation.
Description
The utility model belongs to a kind of industrial butterfly valve, the particularly working medium temperature structural design by-253 ℃～600 ℃ butterfly valve.
Common butterfly valve generally adopts nonmetallic material to make Sealing, all will lose seal action under low temperature or high temperature.In order to address this problem, new structure is all being explored in the home and abroad.Emphasis concentrates on material with Sealing by the nonmetal metal that changes into, and explores various structural types.
A kind of known metal hard-sealing butterfly valve is seen in former Deutsches Reichs-Patent GB2009892A, and supporting plane and annulus that its metallic packing ring is designed to encircle are tangent.This structure has stronger deformability, and self-styled ability is arranged under the medium effect.But this moulding detail rigidity is little, under pressure easy unstability and lose seal action.This design patent is in order to solve stability problem, and way is to make seal ring be in constrained state when butterfly valve cuts out pressurized.This structure more complicated, and when working pressure is higher, only rely on the distortion of confinement ring also to be difficult to fundamentally improve the rigidity of seal ring.
Another kind of known metal hard-sealing butterfly valve is seen in Chinese patent (patent No. 88212280).Its metallic packing ring cross section is " O " shape.And on seal ring, have aperture, when cutting out, butterfly valve working medium is caused in the ring by inlet.The metal "O has bigger rigidity and anti-unstability ability.But because the rigidity of ring is big, under the pressure medium effect, be difficult to rely on extraneous pressure to strengthen the self seal ability, occur easily leaking.Simultaneously, because metal "O deformability is relatively poor, to give when tight extruding force excessive with the contact seal face of butterfly dish for it, abrades sealing surface easily, even influence the regular event that butterfly is coiled.Have to butterfly Pan Mifengmianchu radially is processed into ellipse, this just needs the special process equipment of a cover for this reason.Even like this, when pressure was higher, sealability also was difficult to guarantee.
The purpose of this utility model is to provide a kind of metal special-shaped ring to seal the high and low temperature butterfly valve firmly, it can be effectively the working medium temperature by-253 ℃～600 ℃ condition under proper functioning.
The purpose of this utility model is achieved in that in butterfly valve with a metal special-shaped ring, this ring is made up of the annulus of planar annular and band opening, and by 1～3 layer of thin-walled elastic metallic or stainless steel material through mold pressing or hydraulic pressure and be shaped, and the open part that makes the metal special-shaped ring is directly towards the Way in of medium, thereby guarantees to increase when butterfly valve cuts out sealing force.Be provided with one in the valve and have the butterfly dish that cone angle is 30 ℃～60 ℃ the conical surface, its conical surface contacts with metal special-shaped ring annulus, constitutes sealing pair, and the inlet medium does not leak when closing with the realization butterfly valve.
The centre of curvature of the annulus of the planar annular of the metal special-shaped ring that the utility model is designed and band opening is on same horizontal plane, and settle the annular spring that is rolled into by common spring at metal special-shaped ring inner chamber, with the residual deformation of eliminating this ring and impel it to reset, this just makes the metal special-shaped ring have enough deformabilities and reset function again improving under the rigidity prerequisite, this butterfly valve can repeatedly be worked and keeps sealing.
An embodiment described in the utility model is incited somebody to action with reference to the accompanying drawings makes explanations.
Fig. 1 is that the metal special-shaped ring seals high and low temperature butterfly valve part sectioned view firmly.
Fig. 2 is a metal special-shaped ring sectional drawing.
Press Fig. 1 and 2, this butterfly valve has a valve body 8, the one metal special-shaped ring 1 as Sealing is housed in the valve body 8, this ring is made up of planar annular and opening annulus, and by 1～3 layer of thin-walled elastic metallic or stainless steel material through mold pressing or hydraulic pressure and be shaped, and together be fixed in the valve body 8 by pressing plate 5 usefulness screw (not shown)s with regulating ring 4, the open part that makes metal special-shaped ring 1 in the time of fixedly is directly towards the Way in (shown in Fig. 1 arrow) of medium.Also have butterfly dish 3 in the valve body, it is fixed in the lining 9 in the valve body 8 by axle 7, and with lock nut 6 axle 7 is coiled 3 with butterfly and lock.One cone angle is arranged at the bottom of butterfly dish 3 is 30 °～60 ° the conical surface, and this conical surface contacts with the opening annulus of metal special-shaped ring 1 after the butterfly valve combination, the formation sealing pair.The inner chamber of metal special-shaped ring 1 is settled the annular spring 2 that is rolled into by common spring, with resilience or the reset capability that strengthens this ring.Press Fig. 2, the center of the planar annular of metal special-shaped ring and the annulus of opening is on same horizontal plane, and the interior edge face of butterfly valve assembling back briquetting 5 is used to support metal special-shaped ring circular cross-section bottom.
When metal special-shaped ring hard seal butterfly valve was in closed position shown in Figure 1, the controlled medium that is entered by inlet can keep excellent sealing.Its mechanism is: metal special-shaped ring 1 keeps certain tightness with the bottom conical surface of butterfly dish 3, has set up sealing and has given tight power; Because directly towards the Way in of medium, the pressure medium of this ring inner chamber of introducing will make the contact pressure that metal special-shaped ring and butterfly are coiled between 3 conical surfaces increase to the open part of metal special-shaped ring, thereby strengthen sealing effect.Pressure medium is big more, and sealing effect is good more.The upper and lower biend of the planar annular of metal special-shaped ring 1 has been formed the static seal pair with the pressing plate of pressing mutually 5 and the plane and the regulating ring 4 of 4 pressings of regulating ring with the surface of contact of valve body 9, relies on the pressure force of pressing plate 5 can reliably keep sealing.
Know that by Fig. 1 is apparent the shape at the annulus position of metal special-shaped ring 1 has been different from the shape under the free state.When butterfly dish 3 experience are rotated 90 ° and arrive the fully open position (not shown) by closed position shown in Figure 1 via axle 7, and then driven when getting back to closed position shown in Figure 1 by axle again, the metal special-shaped ring can reset and coil 3 conical surfaces with butterfly again and keep certain nip.Its mechanism is: the different number of plies (1～3 layer) can be chosen according to working pressure in the special construction shape that the metal special-shaped ring is had and it makes itself have suitable rigidity under the condition of enough deformabilities again having; The material of selected manufacturing metal special-shaped ring 1 is elastic alloy or possesses certain flexible stainless steel; Spring 2 tightly is enclosed within the inner chamber of metal special-shaped ring 1 always, to the residual deformation of eliminating the metal special-shaped ring, promote it to reset effectively; Also know by Fig. 1, at the bottom of the ring of metal special-shaped ring 1 always the interior edge face of compression plate 5 support, suppressed it and when pressurized, plastic deformation too much occurred along lower extended.
Above-mentioned explanation has been expressed the metal special-shaped ring and has been sealed the high and low temperature butterfly valve firmly under the high and low temperature condition, all has excellent sealing performance and anti-unstability ability when repeatedly working.And working pressure is high more, and sealing is good more.
In the above embodiments, the opening ring cross-section of metal special-shaped ring also can be oval, quincunx etc., and butterfly dish bottom also can be a spherical section.
Claims (3)
1, the metal special-shaped ring seals the high and low temperature butterfly valve firmly, this valve has a metal special-shaped ring 1 and a butterfly dish 3, it is characterized in that: metal special-shaped ring 1 is made up of planar annular and opening annulus, and by 1～3 layer of thin-walled elastic metallic or stainless steel material through mold pressing or hydraulic pressure and be shaped, and described butterfly dish 3 cone angle is arranged is 30 °～60 ° the conical surface, this conical surface contacts with the opening annulus of above-mentioned metal special-shaped ring 1, constitutes sealing pair.
2, seal the high and low temperature butterfly valve firmly according to the described metal special-shaped ring of claim 1, it is characterized in that: the center of the planar annular of metal special-shaped ring 1 and opening annulus is on same horizontal plane, and described annulus also can be the cross section of other shape, as oval, quincunx etc., the conical surface of described butterfly dish 3 also can be a sphere.
3, seal the high and low temperature butterfly valve firmly according to claim 1 or 2 described metal special-shaped rings, it is characterized in that: the inner chamber of metal special-shaped ring 1 is settled the annular spring 2 that is rolled into by common spring, to strengthen the reset capability of metal special-shaped ring 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92227729 CN2135699Y (en) | 1992-07-20 | 1992-07-20 | Metal shaped ring hard sealing high low temp. butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92227729 CN2135699Y (en) | 1992-07-20 | 1992-07-20 | Metal shaped ring hard sealing high low temp. butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2135699Y true CN2135699Y (en) | 1993-06-09 |
Family
ID=33771603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92227729 Expired - Lifetime CN2135699Y (en) | 1992-07-20 | 1992-07-20 | Metal shaped ring hard sealing high low temp. butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2135699Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7478816B2 (en) | 2004-05-10 | 2009-01-20 | Fisher Controls International, Llc | Seal stiffener |
| CN102720875A (en) * | 2012-06-08 | 2012-10-10 | 圣博莱阀门有限公司 | Ultralow-temperature top entry hard-sealing butterfly valve |
| US8286938B2 (en) | 2005-12-21 | 2012-10-16 | Fisher Controls International Llc | Flexible seals for process control valves |
-
1992
- 1992-07-20 CN CN 92227729 patent/CN2135699Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7478816B2 (en) | 2004-05-10 | 2009-01-20 | Fisher Controls International, Llc | Seal stiffener |
| CN1954164B (en) * | 2004-05-10 | 2010-12-15 | 费希尔控制产品国际有限公司 | Sealing device with stiffener |
| US8286938B2 (en) | 2005-12-21 | 2012-10-16 | Fisher Controls International Llc | Flexible seals for process control valves |
| US9127775B2 (en) | 2005-12-21 | 2015-09-08 | Fisher Controls International Llc | Flexible seals for process control valves |
| US9587747B2 (en) | 2005-12-21 | 2017-03-07 | Fisher Controls International Llc | Flexible seals for process control valves |
| CN102720875A (en) * | 2012-06-08 | 2012-10-10 | 圣博莱阀门有限公司 | Ultralow-temperature top entry hard-sealing butterfly valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2135699Y (en) | Metal shaped ring hard sealing high low temp. butterfly valve | |
| CN113124184A (en) | Valve core assembly of novel structure of precise pressure regulating valve | |
| CN213839750U (en) | Whole terminal surface seal structure | |
| CN203743476U (en) | Pollution-free metal membrane seal ball valve | |
| CN113202945A (en) | Plug sealing ring for cryogenic valve | |
| CN2227236Y (en) | Curved surface sealing ring for pressure container | |
| CN209943536U (en) | Butterfly valve sealing valve seat | |
| CN215293674U (en) | Eccentric half ball valve adopting hard seal | |
| CN2689000Y (en) | Soft and hard sealed eccentric semi-ball valves | |
| CN216009755U (en) | High-performance fluorine-lined gate valve | |
| CN215214841U (en) | Plug sealing ring for cryogenic valve | |
| CN2505650Y (en) | Full-automatic closing exhaust valve | |
| CN2206878Y (en) | Double-eccentric fluorine-plastic sealed butterfly bamper | |
| CN2229013Y (en) | Butterfly water seal valve pressurized by filling liquid | |
| CN212804293U (en) | Butterfly valve with three eccentric structures | |
| CN2401741Y (en) | Conical surface sealed active ring butterfly valve | |
| CN215214796U (en) | Butterfly valve seat with good sealing effect | |
| CN2207486Y (en) | Conical sealing stop valve for chlorine alkali | |
| CN218094294U (en) | All-metal bidirectional pressure butterfly valve | |
| CN219062420U (en) | Low-temperature cladding ring with good rebound resilience performance | |
| CN212080215U (en) | Plunger valve with U-shaped framework elastic sealing ring | |
| CN208719384U (en) | A kind of spherical butterfly valve of the boiler with valve seat notching construction | |
| CN2234027Y (en) | Ball valve | |
| CN2580218Y (en) | Piston stop valve | |
| CN2217712Y (en) | Three-bias metal resilient-sealing butterfly valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |