CN204805572U - Multiple sealed stop valve of combination valve clack - Google Patents
Multiple sealed stop valve of combination valve clack Download PDFInfo
- Publication number
- CN204805572U CN204805572U CN201520559460.8U CN201520559460U CN204805572U CN 204805572 U CN204805572 U CN 204805572U CN 201520559460 U CN201520559460 U CN 201520559460U CN 204805572 U CN204805572 U CN 204805572U
- Authority
- CN
- China
- Prior art keywords
- valve
- flap
- toroidal cavity
- clack
- valve clack
- 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
Abstract
The utility model relates to a multiple sealed stop valve of combination valve clack, including valve body, disk seat, valve clack, valve rod, valve gap, support, hand wheel, mainly be that the valve clack adopts the composite structure who comprises main valve lamella and vice valve clack, the outer circumference system of main valve lamella has a round conical sealing surface, makes downwardly extending's cylinder at round conical sealing surface downside, vice valve clack by screw fixed mounting under the cylinder on the terminal surface, it has toroidal cavity to make between terminal surface and the vice valve clack up end under the cylinder, and the system has guide pressure hole, this guide pressure hole intercommunication toroidal cavity inboard and valve body intake channel, the annular tetrafluoro sealing washer of installation in the cavity of the triangle -shaped inclined plane structure outside toroidal cavity on the vice valve clack, the disk seat has the sealed face of mutually supporting with the round conical sealing surface and the annular tetrafluoro sealing washer of main valve lamella, forms the sealed vice structure of multichannel, has the sealed face wearing and tearing function of pressure medium self sealss function and automatic compensation, and sealing performance is good. Be applicable to high pressure, the polishing machine medium operating mode in fields such as petrochemical industry, electric power.
Description
Technical field
The utility model belongs to valve field, particularly about a kind of stop valve.The utility model is applicable to high pressure, the abrasive media operating mode in the fields such as oil, chemical industry, electric power.
Background technique
Existing stop valve is generally made up of valve body, valve seat, flap, valve rod, valve gap, support, handwheel, valve rod upper end is fixedly connected with handwheel through the Stem Mut on support, valve rod lower end is fixedly connected with flap, flap and valve seat are shaped with the sealing surface cooperatively interacted, rotate handwheel by valve rod transmission flap, realize the keying operation of valve.One of its shortcoming is that valve clack sealing surface is subject to medium and washes away, weares and teares, and sealability is declined; Two of its shortcoming is under flap closed condition, and medium offsets valve rod to the impacting force of flap to the thrust that flap produces, and reduces seal pressure, sealability is declined.
Summary of the invention
The purpose of this utility model is the shortcoming existed for prior art, provides a kind of multi-sealed stop valve of combination flap with the good seal performance of pressure medium self-sealing function.
The technical solution of the utility model comprises valve body, valve seat, flap, valve rod, valve gap, support, handwheel, and valve rod upper end is fixedly connected with handwheel through the Stem Mut on support, and valve rod lower end is fixedly connected with flap; Mainly flap adopts the fabricated structure be made up of main valve clack and secondary flap, main valve clack excircle is shaped with conical sealing face, this conical sealing face pile-up welding hard alloy high-abrasive material, on the downside of conical sealing face, make the cylindrical body to downward-extension, secondary flap is fixedly mounted on cylindrical body lower end surface by screw; Toroidal cavity is shaped with between cylindrical body lower end surface and secondary flap upper-end surface, secondary flap is shaped with pressure guide hole, with valve body inlet passage inside this pressure guide hole connection toroidal cavity, there is outside toroidal cavity triangular ramp structure, annular polytetrafluoroethylsealed sealed circle is installed in the cavity of this triangular ramp structure, the cross section of annular polytetrafluoroethylsealed sealed circle be with toroidal cavity outside the triangular structure that cooperatively interacts of triangular ramp; Valve seat upper end has the conical surface cooperatively interacted with the conical sealing face of main valve clack, on the downside of this conical surface, make cylindrical channel, the barrel portion of this cylindrical channel inwall and main valve clack, secondary flap, the polytetrafluoroethylsealed sealed circle of annular form piston type sealing configuration.
Preferably, on the downside of valve seat cylindrical channel, be shaped with the inner circle arc sealing surface to channel center, outside secondary flap lower end surface, be shaped with the cylindrical arc sealing surface cooperatively interacted with the inner circle arc sealing surface on valve seat.
Preferably, mounting O-shaped seal ring in the toroidal cavity of the polytetrafluoroethylsealed sealed circle inner side of annular.
The utility model has the advantages that flap adopts the fabricated structure be made up of main valve clack and secondary flap, make between flap and valve seat, to form metal hard-sealing and nonmetal soft seal multi-sealing structure, wherein nonmetal soft sealing structure has pressure medium self-sealing function and automatic compensation sealing surface wear function, good seal performance.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
1 valve body, 2 valve seats, 3 main valve clacks, 4 secondary flaps, 5 valve rods, 6 valve gaps, 7 supports, 8 handwheels, 9 toroidal cavities, 10 annular polytetrafluoroethylsealed sealed circles, 11O RunddichtringO, 12 pressure guide holes.
Embodiment
The multi-sealed stop valve of combination flap as shown in Figure 1, valve body 1, valve seat 2, flap, valve rod 5, valve gap 6, support 7, handwheel 8, valve rod 5 upper end is fixedly connected with handwheel 8 through the Stem Mut on support 7, and valve rod 5 lower end is fixedly connected with flap; Flap adopts the fabricated structure be made up of main valve clack 3 and secondary flap 4, main valve clack 3 excircle is shaped with conical sealing face, this conical sealing face pile-up welding hard alloy high-abrasive material, on the downside of conical sealing face, make the cylindrical body to downward-extension, secondary flap 4 is fixedly mounted on cylindrical body lower end surface by screw; Toroidal cavity 9 is shaped with between cylindrical body lower end surface and secondary flap 4 upper-end surface, secondary flap 4 is shaped with pressure guide hole 12, this pressure guide hole 12 be communicated with inside toroidal cavity 9 with valve body 1 inlet passage, valve body import pressure medium is introduced in toroidal cavity 9, there is outside toroidal cavity 9 triangular ramp structure, namely the upside of toroidal cavity 9 outer shroud cavity is downward inclined-plane, and this inclined-plane is positioned at cylindrical body lower end surface excircle; The downside of toroidal cavity 9 outer shroud cavity is inclined-plane upwards, and this inclined-plane is positioned at the excircle of secondary flap 4 upper-end surface; The cross section on upper and lower two inclined-planes forms two limits of triangular structure, is hatch frame, makes toroidal cavity 9 form opening between cylindrical body periphery and secondary flap 4 periphery between the inclined-plane of cylindrical body lower end surface and the inclined-plane of secondary flap 4 upper-end surface.Annular polytetrafluoroethylsealed sealed circle 10 is installed in the cavity of triangular ramp structure, the cross section of the polytetrafluoroethylsealed sealed circle 10 of annular be with toroidal cavity 9 outside the triangular structure that cooperatively interacts of triangular ramp cavity, make annular polytetrafluoroethylsealed sealed circle 10 closely be inlaid in toroidal cavity 9, and the outer ring surface of annular polytetrafluoroethylsealed sealed circle 10 protrude from the opening of toroidal cavity 9; Valve seat 2 upper end has the conical surface cooperatively interacted with the conical sealing face of main valve clack 3, forms first sealing pair; On the downside of this conical surface, make cylindrical channel, the barrel portion periphery of this cylindrical channel inwall and main valve clack 3, secondary flap 4 periphery, annular polytetrafluoroethylsealed sealed circle 10 form piston type sealing configuration, form second sealing pair.Second sealing pair has pressure medium selfsealings and sealing pair wear automatic-compensation function, valve body 1 import pressure medium introduces toroidal cavity 9 from pressure guide hole 12, radial pressure is produced to the polytetrafluoroethylsealed sealed circle 10 of annular, make the cylindrical channel inwall press seal of annular polytetrafluoroethylsealed sealed circle 10 radial dilatation and valve seat 2, improve seal pressure, pressure medium is higher, and sealing force is larger, realizes pressure medium selfsealings and sealing pair wear automatic-compensation function.
The inner circle arc sealing surface to channel center is shaped with on the downside of valve seat 2 cylindrical channel, the cylindrical arc sealing surface cooperatively interacted with the inner circle arc sealing surface on valve seat 2 is shaped with outside secondary flap 4 lower end surface, form three seals secondary, sealing pair has pressure medium self-sealing function, when pressure medium promotes annular polytetrafluoroethylsealed sealed circle 10 radial dilatation, strut secondary flap 4 simultaneously and seal with the inner circle arc sealing surface compact on valve seat 2.
Mounting O-shaped seal ring 11 in toroidal cavity 9 inside the polytetrafluoroethylsealed sealed circle 10 of annular, the medium entered from pressure guide hole 12, to the radial force of O RunddichtringO 11, promotes annular polytetrafluoroethylsealed sealed circle 10 radial dilatation.
Claims (3)
1. the multi-sealed stop valve of combination flap, valve body (1), valve seat (2), flap, valve rod (5), valve gap (6), support (7), handwheel (8), valve rod (5) upper end is fixedly connected with handwheel (8) through the Stem Mut on support (7), and valve rod (5) lower end is fixedly connected with flap; It is characterized in that flap adopts the fabricated structure be made up of main valve clack (3) and secondary flap (4), main valve clack (3) excircle is shaped with conical sealing face, this conical sealing face pile-up welding hard alloy high-abrasive material, on the downside of conical sealing face, make the cylindrical body to downward-extension, secondary flap (4) is fixedly mounted on cylindrical body lower end surface by screw; Toroidal cavity (9) is shaped with between cylindrical body lower end surface and secondary flap (4) upper-end surface, secondary flap (4) is shaped with pressure guide hole (12), this pressure guide hole (12) is communicated with toroidal cavity (9) inner side and valve body (1) inlet passage, toroidal cavity (9) outside has triangular ramp structure, in the cavity of triangular ramp structure, install annular polytetrafluoroethylsealed sealed circle (10), the cross section of annular polytetrafluoroethylsealed sealed circle (10) is the triangular structure cooperatively interacted with the triangular ramp cavity in toroidal cavity (9) outside; Valve seat (2) upper end has the conical surface cooperatively interacted with the conical sealing face of main valve clack (3), on the downside of this conical surface, make cylindrical channel, the barrel portion periphery of this cylindrical channel inwall and main valve clack (3), secondary flap (4) periphery, annular polytetrafluoroethylsealed sealed circle (10) form piston type sealing configuration.
2. the multi-sealed stop valve of combination flap according to claim 1, it is characterized in that the inner circle arc sealing surface be shaped with on the downside of valve seat (2) cylindrical channel to channel center, outside secondary flap (4) lower end surface, be shaped with the cylindrical arc sealing surface cooperatively interacted with the inner circle arc sealing surface on valve seat (2).
3. the multi-sealed stop valve of combination flap according to claim 1 and 2, is characterized in that mounting O-shaped seal ring (11) in the toroidal cavity (9) of the polytetrafluoroethylsealed sealed circle of annular (10) inner side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520559460.8U CN204805572U (en) | 2015-07-17 | 2015-07-17 | Multiple sealed stop valve of combination valve clack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520559460.8U CN204805572U (en) | 2015-07-17 | 2015-07-17 | Multiple sealed stop valve of combination valve clack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204805572U true CN204805572U (en) | 2015-11-25 |
Family
ID=54590401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520559460.8U Active CN204805572U (en) | 2015-07-17 | 2015-07-17 | Multiple sealed stop valve of combination valve clack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204805572U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105864489A (en) * | 2016-04-25 | 2016-08-17 | 浙江鸿森机械有限公司 | Piston type solenoid valve with sealing clearance compensation |
| CN109723840A (en) * | 2017-10-30 | 2019-05-07 | 四川沃兰特阀门制造有限公司 | A kind of high temperature and high pressure cut-off valve |
| CN110242757A (en) * | 2019-06-20 | 2019-09-17 | 江苏神通阀门股份有限公司 | A kind of helium grade elasticity Double sealing globe valve valve flap structure |
-
2015
- 2015-07-17 CN CN201520559460.8U patent/CN204805572U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105864489A (en) * | 2016-04-25 | 2016-08-17 | 浙江鸿森机械有限公司 | Piston type solenoid valve with sealing clearance compensation |
| CN109723840A (en) * | 2017-10-30 | 2019-05-07 | 四川沃兰特阀门制造有限公司 | A kind of high temperature and high pressure cut-off valve |
| CN110242757A (en) * | 2019-06-20 | 2019-09-17 | 江苏神通阀门股份有限公司 | A kind of helium grade elasticity Double sealing globe valve valve flap structure |
| WO2020253405A1 (en) * | 2019-06-20 | 2020-12-24 | 江苏神通阀门股份有限公司 | Helium-level elastic double-sealing cut-off valve disc structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204805572U (en) | Multiple sealed stop valve of combination valve clack | |
| CN203286121U (en) | Self-sealing gate valve | |
| CN203240024U (en) | High-pressure dual-seal check valve | |
| CN204533566U (en) | Four eccentric two-way seal butterfly valves | |
| CN104565421A (en) | Double-power two-way composite sealing type low-temperature ball valve | |
| CN103470790B (en) | Three eccentric metal seal butterfly valve | |
| CN104405908A (en) | Valve core component of corrugated pipe type double-base sleeve valve | |
| CN202252179U (en) | Stop check valve for high-pressure bellows | |
| CN203202254U (en) | Double-eccentric and bidirectional metallic seal butterfly valve | |
| CN203656252U (en) | Sealing structure for floating hard-sealing ball valve and floating hard-sealing ball valve | |
| CN205036864U (en) | Sealed -regulating valve seat device | |
| CN204083287U (en) | Bellows two-seater telescoping valve mangetic core assembly | |
| CN209762330U (en) | Three-way coaxial type axial valve | |
| CN205908766U (en) | Non -maintaining high pressure resistant triple offset butterfly valve | |
| CN209084055U (en) | A kind of single valve seat two-way sealing control ball valve | |
| CN105987183A (en) | Maintenance-free high-pressure-resistant three-eccentric-center butterfly valve | |
| CN201982689U (en) | Balanced type vacuum plunger globe valve | |
| CN219062599U (en) | Electromagnetic vacuum baffle valve | |
| CN219529862U (en) | Stop valve | |
| CN214036951U (en) | Plug valve with upper and lower fixed shafts | |
| CN210318582U (en) | Anti-lock structure of pulp valve seat | |
| CN215445106U (en) | Valve rod that leakproofness is strong | |
| CN201884753U (en) | Valve cover pressure self-sealing gate valve | |
| CN201944281U (en) | High-temperature high-pressure non-return valve | |
| CN204459258U (en) | A kind of novel seal valve seat |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200715 Address after: Yongjia Oubei County of Wenzhou City, Zhejiang province 325000 street Dong'ou Industrial Park (Zhejiang Baolong valve manufacturing limited company) Patentee after: Wenzhou Jilong Valve Co., Ltd Address before: Dong'ou Industrial Zone Oubei town of Yongjia County, Wenzhou City, Zhejiang province 325102 Patentee before: ZHEJIANG PORO VALVE MANUFACTURING Co.,Ltd. |
|
| TR01 | Transfer of patent right |