CN103615551B - A kind of two-way selfsealings low flow resistance spheroid butterfly valve - Google Patents
A kind of two-way selfsealings low flow resistance spheroid butterfly valve Download PDFInfo
- Publication number
- CN103615551B CN103615551B CN201310571595.1A CN201310571595A CN103615551B CN 103615551 B CN103615551 B CN 103615551B CN 201310571595 A CN201310571595 A CN 201310571595A CN 103615551 B CN103615551 B CN 103615551B
- Authority
- CN
- China
- Prior art keywords
- chamber
- cavity
- hole
- seal ring
- 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.)
- Active
Links
Classifications
-
- 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
- F16K1/226—Shaping or arrangements of the sealing
- F16K1/2263—Shaping or arrangements of the sealing the sealing being arranged on the valve seat
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lift Valve (AREA)
Abstract
The invention discloses a kind of two-way selfsealings low flow resistance spheroid butterfly valve, comprise valve body, valve seat, the butterfly plate be arranged on described valve interior wall, be arranged at the seal ring on described valve seat, the inner chamber of described valve body is divided into the first chamber and the second chamber when being in closed condition by described butterfly plate, and described seal ring is provided with the first cavity with the first chamber, the second chamber isolation; After described butterfly plate is closed, described first cavity communicates with the first chamber/the second chamber; Before described butterfly plate is opened, described first cavity communicates with air with the second chamber/the first chamber or the first described cavity.The present invention by pipeline working pressure and sealing load being linked after valve closing, thus makes seal ring and butterfly plate fit tightly further, realizes zero leakage; Before valve open, sealing load is carried out release, butterfly plate and seal ring do not produce friction, thus greatly reduce the moment of opened butterfly valve.
Description
Technical field
The invention belongs to butterfly valve technical field, is specifically a kind of two-way selfsealings low flow resistance spheroid butterfly valve.
Background technique
Valve is a kind of piping element controlling fluid motion.Existing butterfly valve is after cut out, the comparatively large and opposite side pressure of butterfly plate one side pressure is less is even 0, " O " RunddichtringO causing valve sealing element to adopt and other forms of seal ring are subject to larger Unidirectional acting force, very easily there is deformation in seal ring, after long-time use, sealed ring deformation causes sealing effect poor, cause closedown of pipeline not tight, particularly when manifold pressure is larger, ducted fluid is easily revealed, and accelerates the damage of seal ring.In addition, when opened butterfly valve, because pressure larger in pipeline acts on butterfly plate, the moment that Open valve needs is also larger.
Summary of the invention
The present invention is intended at least to solve one of technical problem existed in prior art.For this reason, the present invention proposes a kind of two-way selfsealings low flow resistance spheroid butterfly valve, comprise valve body 1, the valve seat 2 be arranged on described valve interior wall, the seal ring 4 be arranged on described valve seat, the butterfly plate 3 be arranged on described valve body, described valve body (1) runner is billiard table shape, when described butterfly plate is in closed condition, described seal ring contacts with described butterfly plate and coordinates, the inner chamber of described valve body is divided into the first chamber 11 and the second chamber 12, described seal ring is provided with the first cavity 41 with the first chamber, the second chamber isolation; After described butterfly plate is closed, described first cavity 41 communicates with the first chamber/the second chamber; Before described butterfly plate is opened, described first cavity 41 communicates with the second cavity/the first cavity or communicates with air.
The present invention is provided with the first cavity in seal ring, after valve closing, fluid source pipe fluid pressure is introduced the first cavity, thus offset the uniaxial pressure that fluids within pipes acts on seal ring, fluid source pipe fluid pressure is linked with sealing load, sealing load adjusts automatically with fluid source conduit fluid pressure, fluid source conduit fluid pressure more big sealing ring is also larger to the pressure of butterfly plate, thus seal ring and butterfly plate are fitted tightly further, realizes zero leakage; Before valve open, the pressure in the first cavity is drawn, carry out release, seal ring no longer includes pressure effect to butterfly plate, the two is in nature contact condition, and the fluid pressure action of fluid source side makes sealed ring deformation in seal ring, produces gap between seal ring and butterfly plate, high-pressure liquid flow to direction of flow chamber side by gap, when butterfly plate is opened, butterfly plate and seal ring do not produce friction, thus greatly reduce the moment of opened butterfly valve; Meanwhile, body cavity flow channels is billiard table, and after velocity of medium ν enters valve pocket spherical channel by pipeline opening, velocity vector diminishes, medium head flow resistance loss value Δ h=ζ ν
2/ 2g is corresponding step-down also.
Further, described seal ring is provided with groove 1, described valve seat 2 embeds in described groove one formation first cavity 41 that is sealed and matched with described groove one.This structure makes seal ring be arranged at securely on valve seat.
Further, described seal ring and butterfly plate sealing place are also provided with sealing station 45.Sealing station makes the sealing surface of seal ring and butterfly plate be line contact sealing, seals tighter.
Further, the non-fitting surface of described seal ring both sides is also respectively arranged with reinforced block 5, also comprises bolt 6, described seal ring 4, through described valve seat 2, described seal ring 4, described reinforced block 5, is fixed on described valve seat 2 by described bolt.By reinforced block and bolt, the fixing of seal ring and valve seat can be realized preferably.
Further, described valve seat 2 is provided with the hole 1 communicated with described valve body outside and described first cavity 41, the valve body at described first chamber place is provided with hole 2 13 that is outside with described valve body and the first chamber, the valve body at described second chamber place is provided with hole 3 14 that is outside with described valve body and the second chamber, after described butterfly plate is closed, described first cavity 41 passing hole 1, hole, hole 2 13/ 3 14 communicates with the fluid source chamber in the first chamber/the second chamber, before described butterfly plate is opened, described first cavity 41 passing hole 1, hole, hole 3 14/ 2 13 communicates with the direction of flow chamber in the second chamber/the first chamber or the first described cavity 41 passing hole 1 communicates with air.Valve seat and valve body are equipped with hole, when needs are closed or when opening butterfly plate, by being communicated with different holes to realize supercharging to the first cavity and release.
Further, the face that described butterfly plate contacts with described seal ring is cone inclined-plane, and the oblique angle on described cone inclined-plane is α, when described dish plate is in closed condition, in the side on described cone inclined-plane, described seal ring surface seals formation second cavity 42 with described valve seat and valve interior surface; After described butterfly plate is closed, synchronous first cavity of described second cavity 42 communicates with the fluid source chamber in the first chamber/the second chamber, before described butterfly plate is opened, synchronous first cavity of described second cavity 42 communicates with the direction of flow chamber in the second chamber/the first chamber or communicates with air.Increase by the second cavity, seal ring can be made to balance pressurized, thus realize seal ring better and contact with the sealing of butterfly plate, reach zero leakage.
Further, described seal ring is provided with the sealing surface 44 matched with described valve interior surface.The second cavity and the second chamber can be made to keep apart preferably by sealing surface 44, ensure or the release synchronous with pipeline inner high voltage hydrodynamic pressure of pressure in the second cavity.
Further, the valve body at described second cavity 42 place or valve seat are provided with the hole 4 15 communicated with valve body outside and described second cavity, after described butterfly plate is closed, described second cavity 42 passing hole 4 15, synchronous first cavity in hole, hole 2 13/ 3 14 communicate with the first chamber/the second chamber, before described butterfly plate is opened, described second cavity passing hole 4 15, synchronous first cavity in hole, hole 3 14/ 2 13 communicate with the second chamber/the first chamber or communicate with air.Passing hole four is communicated with different holes to realize supercharging to the second cavity and release.
Further, the described seal ring at described second cavity 42 place is also provided with the groove 2 43 be connected with the second cavity, bracing ring 7 is also provided with in described groove 2 43, described bracing ring 7 is also provided with the through hole 71 being communicated with described second cavity and groove two, the shape of cross section of described seal ring is Ψ font.Seal ring is provided with groove two, more uniformly can pressurize and release to seal ring, be provided with bracing ring in groove two, can prevent from seal ring from unnecessary distortion occurring and affect it normally working.
Further, described bracing ring 7 for cross section be trapezoidal annulus.Make the first cavity identical with the structure of the second cavity, the pressure produced in two cavitys is identical, make seal ring pressurized evenly.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention one;
Fig. 2 is the structural representation of the embodiment of the present invention two;
Fig. 3 is the structural representation of the embodiment of the present invention three;
Fig. 4 is the structural representation of the embodiment of the present invention four;
The structural representation of seal ring in the embodiment that Fig. 5 provides for Fig. 1;
Fig. 6 is the structural representation of seal ring in the embodiment that provides of Fig. 3;
Fig. 7 is the structural representation of seal ring in the embodiment that provides of Fig. 4;
Fig. 8 is the fluid control connection schematic diagram that in the present invention, seal ring forms selfsealings and pressure release;
Fig. 9 is another schematic diagram of fluid control connection that in the present invention, seal ring forms selfsealings and pressure release.
Wherein, 1, valve body; 11, the first chamber; 12, the second chamber; 13, hole two; 14, hole three; 15, Kong Si; 2, valve seat; 21, Kong Yi; 3, butterfly plate; 4, seal ring; 41, the first cavity; 42, the second cavity; 43, groove two; 44, sealing surface; 45, sealing station; 46, groove one; 5, reinforced block; 6, bolt; 7, bracing ring; 71, through hole; 8, switch valve.
Embodiment
Be described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Being exemplary below by the embodiment be described with reference to the drawings, only for explaining the present invention, and can not limitation of the present invention being interpreted as.
In describing the invention, it will be appreciated that, orientation or the position relationship of the instruction such as term " " center ", " on ", D score, "front", "rear", "left", "right", " vertically ", " level ", " top ", " end " " interior ", " outward " they be based on orientation shown in the drawings or position relationship; be only the present invention for convenience of description and simplified characterization; instead of instruction or imply the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limitation of the present invention.
In describing the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition above-mentioned term concrete meaning in the present invention can be understood.
Embodiment in Fig. 1-Fig. 4 is all described in detail there to be fluid to pass in valve body.
Below with reference to Fig. 1, embodiments of the invention one are described.
The two-way selfsealings of one as shown in Fig. 1, Fig. 8 low flow resistance spheroid butterfly valve, comprises valve body 1, the valve seat 2 be arranged on described valve interior wall, the seal ring 4 be arranged on described valve seat, the butterfly plate 3 be arranged on described valve body, also comprises reinforced block 5 and bolt 6; Described seal ring 4, through described valve seat 2, described seal ring 4, described reinforced block 5, is fixed on described valve seat 2 by described bolt; Described seal ring is also provided with sealing station 45; When described butterfly plate is in closed condition, the sealing station of described seal ring contacts with described butterfly plate and coordinates, and the inner chamber of described valve body is divided into the first chamber 11 and the second chamber 12; Described seal ring is provided with groove 1, described valve seat 2 embeds in described groove one formation first cavity 41 that is sealed and matched with described groove one; Described valve seat 2 is provided with the hole 1 communicated with described valve body outside and described first cavity 41; The valve body at described first chamber place is provided with hole 2 13 that is outside with described valve body and the first chamber; The valve body at described second chamber place is provided with hole 3 14 that is outside with described valve body and the second chamber; As shown in Figure 8, after described butterfly plate is closed, described first cavity 41 passing hole 1, hole, hole 2 13/ 3 14 communicate with the fluid source chamber in the first chamber/the second chamber, before described butterfly plate is opened, described first cavity 41 passing hole 1 and air or described first cavity 41 passing hole 1, hole, hole 3 14/ 2 13 communicate with the direction of flow chamber in the second chamber/the first chamber.
Further, as shown in Figure 8, between described hole 1 and hole 2 13, switch valve 8 can be provided with, realize being communicated with and disconnection of the first chamber 11 and the hole two on valve seat, hole 1 and hole 3 14 can be provided with switch valve 8, realize being communicated with and disconnection of the second chamber 12 and the hole two on valve seat.
Further, described seal ring is with strength layer, the same with small tire, meets different duty requirements.
For 1.0MPa nominal pressure product, the two-way selfsealings of one of the present invention low flow resistance spheroid butterfly valve is described:
Be connected by pipeline between hole 1 with hole 2 13, between hole 1 with hole 3 14, when fluid flows to the second chamber from the first chamber, the pressure of the first chamber is 1.0MPa nominal pressure.After butterfly plate is closed, fluid enters the hole 1 on valve seat through hole 2 13, and then the first cavity 41 entered on seal ring forms 1.0MPa nominal pressure and is applied on butterfly plate, and namely sealing load is 1.0MPa nominal pressure; Before butterfly plate is opened, second chamber pressure is 0, described first cavity 41 passing hole 1 to be communicated with air or described first cavity 41 passing hole 1 and hole 3 14 communicate with the second chamber, the first cavity 41 is made to carry out release, after release completes, seal ring disappears to the sealing load of butterfly plate, thus reduces the startup square of butterfly plate.
When fluid flows to the first chamber from the second chamber, the pressure of the second chamber is 1.0MPa nominal pressure.After butterfly plate is closed, fluid enters the hole 1 on valve seat through hole 3 14, and then the first cavity 41 entered on seal ring forms 1.0MPa nominal pressure and is applied on butterfly plate, and namely sealing load is 1.0MPa nominal pressure; Before butterfly plate is opened, first chamber pressure is 0, described first cavity 41 passing hole 1 to be communicated with air or described first cavity 41 passing hole 1 and hole 2 13 communicate with the first chamber, the first cavity 41 is made to carry out release, after release completes, seal ring disappears to the sealing load of butterfly plate, thus reduces the startup square of butterfly plate.
When butterfly plate is closed, be that one of them has in fluid or two chambers and all has fluid in the first chamber and the second chamber, all effectively can realize zero leakage, realize the two-way selfsealings of spheroid butterfly valve.Before butterfly plate is opened, release can be realized by being communicated with air by the first cavity on seal ring or being communicated with fluid free chamber in two chambers by the first cavity on seal ring, thus reduce the unlatching square of butterfly plate.
Below with reference to Fig. 2, embodiments of the invention two are described.
As Fig. 2, the two-way selfsealings of one shown in Fig. 9 low flow resistance spheroid butterfly valve, increase with the selfsealings provided in Fig. 1 low flow resistance spheroid butterfly valve: the face that described butterfly plate contacts with described seal ring is cone inclined-plane, the oblique angle on described cone inclined-plane is α, when described dish plate is in closed condition, in the side on described cone inclined-plane, described seal ring surface seals formation second cavity 42 with described valve seat and valve interior surface, the valve body at described second cavity 42 place or valve seat are provided with the hole 4 15 communicated with valve body outside and described second cavity, between hole 4 15 and hole 2 13, be connected by pipeline between hole 4 15 with hole 3 14, after described butterfly plate is closed, described second cavity 42 passing hole 4 15, synchronous first cavity in hole, hole 2 13/ 3 14 communicates with the fluid source chamber in the first chamber/the second chamber, before described butterfly plate is opened, described second cavity passing hole 4 15, synchronous first cavity in hole, hole 2 13/ 3 14 communicates with the direction of flow chamber in the second chamber/the first chamber or communicates with air.
Further, switch valve 8 can be provided with between described hole 4 15 and hole 2 13, realize being communicated with and disconnection of the first chamber 11 and the Kong Si on valve seat, hole 4 15 and hole 3 14 can be provided with switch valve 8, realize being communicated with and disconnection of the second chamber 12 and the Kong Si on valve seat.
In this embodiment two, than embodiment more than add hole 4 15, hole 2 13, hole 3 14, second cavity 42 composition pressurization and discharge channel, the pressurization of this passage is identical with the principle of the pressurization be made up of hole 1, hole 2 13, hole 3 14 and the first cavity 41 in release principle and embodiment one and discharge channel, repeats no more herein.
Lower one-tenth describes embodiments of the invention three with reference to figure 3.
The two-way selfsealings of one as shown in Figure 3 low flow resistance spheroid butterfly valve, with the selfsealings provided in Fig. 2 low flow resistance spheroid butterfly valve unlike: described seal ring 4 is provided with the sealing surface 44 matched with described valve interior surface.The second cavity and the second chamber can be made to keep apart preferably by sealing surface 44, to avoid pressure release.
Below with reference to Fig. 4, embodiments of the invention four are described.
The two-way selfsealings of one as shown in Figure 4 low flow resistance spheroid butterfly valve, with the selfsealings provided in Fig. 2 low flow resistance spheroid butterfly valve unlike: the described seal ring at described second cavity 42 place is also provided with groove 2 43, bracing ring 7 is also provided with in described groove 2 43, described bracing ring 7 is also provided with the through hole 71 being communicated with described second cavity and groove two, described bracing ring 7 for cross section be trapezoidal annulus, the shape of cross section of described seal ring is Ψ font.Seal ring is provided with groove two, more uniformly can pressurize and release to seal ring, be provided with bracing ring in groove two, can prevent from seal ring from unnecessary distortion occurring and affect it normally working.The cross section of described bracing ring 7 is trapezoidal, makes the first cavity identical with the structure of the second cavity, and the pressure produced in two cavitys is identical, make seal ring pressurized evenly.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " illustrative examples ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present invention or example.In this manual, identical embodiment or example are not necessarily referred to the schematic representation of above-mentioned term.And the specific features of description, structure, material or feature can combine in an appropriate manner in any one or more embodiment or example.
Although illustrate and describe embodiments of the invention, those having ordinary skill in the art will appreciate that: can carry out multiple change, amendment, replacement and modification to these embodiments when not departing from principle of the present invention and aim, scope of the present invention is by claim and equivalents thereof.
Claims (8)
1. a two-way selfsealings low flow resistance spheroid butterfly valve, comprise valve body (1), be arranged at the valve seat (2) on described valve interior wall, be arranged at the seal ring (4) on described valve seat, be arranged at the butterfly plate (3) in described valve body, described valve body (1) runner is spheroid form, when described butterfly plate is in closed condition, described seal ring contacts with described butterfly plate and coordinates, the inner chamber of described valve body is divided into the first chamber (11) and the second chamber (12), it is characterized in that, described seal ring is provided with and the first chamber, first cavity (41) of the second chamber isolation, after described butterfly plate is closed, described first cavity (41) communicates with the first chamber or the second chamber, and before described butterfly plate is opened, described first cavity (41) communicates with the second chamber or the first chamber or communicates with air, described seal ring is provided with groove one (46), described valve seat (2) embeds in described groove one formation first cavity (41) that is sealed and matched with described groove one, described seal ring both sides are also respectively arranged with reinforced block (5), also comprise bolt (6), described seal ring (4), through described valve seat (2), seal ring (4), reinforced block (5), is fixed on described valve seat (2) by described bolt.
2. two-way selfsealings according to claim 1 low flow resistance spheroid butterfly valve, is characterized in that, described seal ring and butterfly plate sealing place are also provided with sealing station (45).
3. two-way selfsealings according to claim 1 low flow resistance spheroid butterfly valve, it is characterized in that, described valve seat (2) is provided with the hole one (21) communicated with described valve body outside and described first cavity (41), the valve body at described first chamber place is provided with hole two (13) that is outside with described valve body and the first chamber, the valve body at described second chamber place is provided with hole three (14) that is outside with described valve body and the second chamber, after described butterfly plate is closed, described first cavity (41) passing hole one (21), hole two (13) communicates with the first chamber, or described first cavity (41) passing hole one (21), hole three (14) communicates with the second chamber, before described butterfly plate is opened, described first cavity (41) passing hole one (21), hole three (14) communicates with the second chamber, or described first cavity (41) passing hole one (21), hole two (13) communicates with the first chamber, or described first cavity (41) passing hole one (21) communicates with air.
4. two-way selfsealings according to claim 3 low flow resistance spheroid butterfly valve, it is characterized in that, the face that described butterfly plate contacts with described seal ring is cone inclined-plane, the oblique angle on described cone inclined-plane is α, when described butterfly plate is in closed condition, in the side on described cone inclined-plane, described seal ring surface seals formation second cavity (42) with described valve seat and valve interior surface, after described butterfly plate is closed, synchronous first cavity of described second cavity (42) communicates with the first chamber or the second chamber, before described butterfly plate is opened, synchronous first cavity of described second cavity (42) communicates with the second chamber or the first chamber or communicates with air.
5. two-way selfsealings according to claim 4 low flow resistance spheroid butterfly valve, is characterized in that, described seal ring is provided with the sealing surface (44) matched with described valve interior surface.
6. the two-way selfsealings low flow resistance spheroid butterfly valve according to claim 4 or 5, it is characterized in that, the valve body at described second cavity (42) place or valve seat are provided with the Kong Si (15) communicated with valve body outside and described second cavity, after described butterfly plate is closed, described second cavity (42) passing hole four (15), synchronous first cavity in hole two (13) communicates with the first chamber, or described second cavity (42) passing hole four (15), synchronous first cavity in hole three (14) communicates with the second chamber, before described butterfly plate is opened, described second cavity passing hole four (15), synchronous first cavity in hole three (14) communicates with the second chamber, or described second cavity passing hole four (15), synchronous first cavity in hole two (13) communicates with the first chamber, or described second cavity passing hole four (15) communicates with air.
7. two-way selfsealings according to claim 6 low flow resistance spheroid butterfly valve, it is characterized in that, the described seal ring at described second cavity (42) place is also provided with groove two (43), bracing ring (7) is also provided with in described groove two (43), described bracing ring (7) is also provided with the through hole (71) being communicated with described second cavity and groove two, the shape of cross section of described seal ring is Ψ font.
8. two-way selfsealings according to claim 7 low flow resistance spheroid butterfly valve, is characterized in that, described bracing ring (7) for cross section be trapezoidal annulus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310571595.1A CN103615551B (en) | 2013-11-15 | 2013-11-15 | A kind of two-way selfsealings low flow resistance spheroid butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310571595.1A CN103615551B (en) | 2013-11-15 | 2013-11-15 | A kind of two-way selfsealings low flow resistance spheroid butterfly valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103615551A CN103615551A (en) | 2014-03-05 |
| CN103615551B true CN103615551B (en) | 2016-02-10 |
Family
ID=50166264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310571595.1A Active CN103615551B (en) | 2013-11-15 | 2013-11-15 | A kind of two-way selfsealings low flow resistance spheroid butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103615551B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113202936A (en) * | 2021-05-17 | 2021-08-03 | 江苏盾安环控系统有限公司 | Method for fixing sealing strip on rectangular airtight isolation valve |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE933842C (en) * | 1953-06-13 | 1955-10-06 | Voith Gmbh J M | Gap seal |
| DE1475914A1 (en) * | 1965-10-19 | 1969-07-10 | Werner Fass | Sealing arrangement for shut-off valves |
| GB1572436A (en) * | 1976-06-15 | 1980-07-30 | Nemetz J | Shut-off flap valve |
| JP2002147622A (en) * | 2000-11-09 | 2002-05-22 | Tomoe Tech Res Co | Seat ring for butterfly valve |
| JP2003343743A (en) * | 2002-05-29 | 2003-12-03 | Tomoe Tech Res Co | Triple eccentricity type butterfly valve |
| CN201284833Y (en) * | 2008-10-31 | 2009-08-05 | 江苏神通阀门股份有限公司 | Dome valve |
-
2013
- 2013-11-15 CN CN201310571595.1A patent/CN103615551B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE933842C (en) * | 1953-06-13 | 1955-10-06 | Voith Gmbh J M | Gap seal |
| DE1475914A1 (en) * | 1965-10-19 | 1969-07-10 | Werner Fass | Sealing arrangement for shut-off valves |
| GB1572436A (en) * | 1976-06-15 | 1980-07-30 | Nemetz J | Shut-off flap valve |
| JP2002147622A (en) * | 2000-11-09 | 2002-05-22 | Tomoe Tech Res Co | Seat ring for butterfly valve |
| JP2003343743A (en) * | 2002-05-29 | 2003-12-03 | Tomoe Tech Res Co | Triple eccentricity type butterfly valve |
| CN201284833Y (en) * | 2008-10-31 | 2009-08-05 | 江苏神通阀门股份有限公司 | Dome valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103615551A (en) | 2014-03-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107034858B (en) | A kind of self-closed sluice | |
| WO2011120338A1 (en) | Driving and adjusting device of passive shuttle-type shut-off valve | |
| CN103615551B (en) | A kind of two-way selfsealings low flow resistance spheroid butterfly valve | |
| CN204878815U (en) | Ultra -low temperature ball valve | |
| CN201310633Y (en) | Two-way sealing butterfly valve | |
| CN202629156U (en) | Valve rod of ball valve for pipeline | |
| CN202545893U (en) | Four-way valve | |
| CN201925538U (en) | Oxygen valve | |
| CN202914806U (en) | Novel thread plug-in type tee valve | |
| CN202252228U (en) | Limit structure for butterfly valve and butterfly plate | |
| CN203906423U (en) | High air tightness combination locking and erecting device | |
| CN202972004U (en) | Double-blocking-up type fixed ball valve | |
| CN204911975U (en) | Plugging device | |
| CN101713468A (en) | Butterfly valve with single valve seat and multi-sealing structure | |
| CN201090899Y (en) | Under-pressure quick maintaining fluid sac type piping clip | |
| CN204942681U (en) | A kind of valve with stiffening rib | |
| CN204267782U (en) | A kind of duplex pass ball valve | |
| CN204140998U (en) | A kind of improvement valve | |
| CN218818310U (en) | Energy-saving remote control valve for pipeline | |
| CN206668994U (en) | A kind of efficient sealed butterfly valve | |
| CN207814503U (en) | Low temperature floating ball valve | |
| CN210661915U (en) | Combined type heat preservation box beneficial to quick assembly | |
| CN205244414U (en) | Sealing valve | |
| CN220118707U (en) | Medical gas busbar check valve | |
| CN201288839Y (en) | Metal seal structure of flat gate valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221114 Address after: No. 15, 1st Floor, Shop B, Zone C, New Century Garden, Hongshan District, Wuhan, Hubei 430070 Patentee after: Wuhan Yamei Butterfly Valve Technology Co.,Ltd. Address before: No. 24, Jiangxia Avenue, Miaoshan Economic Development Zone, Jiangxia District, Wuhan, Hubei 430223 Patentee before: WUHAN YAMEI VALVE MANUFACTURING Co.,Ltd. |