CN204004532U - The V-type modulating valve of valve seat construction free floating - Google Patents
The V-type modulating valve of valve seat construction free floating Download PDFInfo
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- CN204004532U CN204004532U CN201420468176.5U CN201420468176U CN204004532U CN 204004532 U CN204004532 U CN 204004532U CN 201420468176 U CN201420468176 U CN 201420468176U CN 204004532 U CN204004532 U CN 204004532U
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- valve seat
- free floating
- valve body
- type modulating
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Abstract
The utility model proposes a kind of V-type modulating valve of valve seat construction free floating, comprise valve body, valve gap, valve seat, actuator and be arranged on valve body and valve gap in and for the able to turn on or off ball core coordinating of valve seat and valve rod, lower valve rod, ball core is provided with v-notch, valve seat with valve body contact position be three grades stepped, valve seat be respectively equipped with radial direction seal ring and dish spring with two right angle ends valve body contact position, valve seat can float between spool and valve body.The utility model, when valve seat misaligns, can make valve seat centering automatically; When valve is maintenance and the dismounting that the valve seat of free floating can be convenient to valve seat while being welded to connect.
Description
Technical field
The utility model relates to a kind of valve, refers in particular to a kind of V-type modulating valve that large capacity also meets the valve seat construction free floating of extra small flow coefficient that both met.
Background technique
V-type ball valve belongs to the fixing ball valve of single valve seat sealing, has good adjusting function.Between its v-notch and metal seat valve, there is shear action, be particularly suitable for the media such as fibre-bearing, small solid particle, slip, meanwhile, V-notch structure is also beneficial to hydrodynamic pressure is converted to sealing load, strengthen sealing effect, thereby there is good sealability.
The valve seat construction of current known V-shaped valve cored structure mostly is fixedly lift-on/lift-off type or compression type substantially, when the not timing of valve seat centering, and the automatic centering of valve seat energy; When valve is when being welded to connect, valve seat maintenance is very inconvenient.
Model utility content
In order to solve the valve seat construction of the existing V-shaped valve being welded to connect, be not easy centering and keep in repair inconvenient problem, the utility model proposes a kind of V-type modulating valve of valve seat construction free floating, when valve seat misaligns, can automatically make valve seat centering, when valve is maintenance and the dismounting that the valve seat of free floating can be convenient to valve seat while being welded to connect.
The technological scheme that the utility model adopts is: a kind of V-type modulating valve of valve seat construction free floating, comprise valve body, valve gap, valve seat, actuator and be arranged on valve body and valve gap in and for the able to turn on or off ball core coordinating of valve seat and valve rod, lower valve rod, described ball core is provided with v-notch, described valve seat with valve body contact position be three grades stepped, valve seat be respectively equipped with radial direction seal ring and dish spring with two right angle ends valve body contact position, valve seat can float between spool and valve body.Valve seat of the present utility model is not fixing spacing, but can free floating, valve seat can among a small circle motion freely, because dish spring after valve seat has a thrust, imposes on valve seat, make itself and valve core sealed cover produce the shearing force of a centering, make valve seat towards the direction motion coaxial with spool; The shearing force of valve seat and spool is maximum opening and closing moment, so suitable switch motion can make valve seat automatic centering.
As preferably, described actuator is side-mounted structure.Actuator is air bladder formula actuator, is arranged on a side of valve body, can fast and easy dismounting.
As preferably, the middle part of described v-notch is provided with U-shaped groove.The v-notch of original ball cored structure is increased to special U-shaped groove design, make valve in the situation that of little aperture, use U-shaped groove to carry out the adjusting of extra small flow, thereby the adjusting of using v-notch to carry out large flow in the situation of large aperture meets usage requirement.
As preferably, the position contacting with spool of described valve seat is arc sealing surface, and described arc sealing surface is provided with scraper.
As preferably, described valve body lower end and valve gap joint are provided with winding seal ring.Valve body lower end and valve gap carry out encapsulation process, strengthen sealability.
The beneficial effects of the utility model are: when valve seat misaligns, can automatically make valve seat centering; When valve is maintenance and the dismounting that the valve seat of free floating can be convenient to valve seat while being welded to connect.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present utility model;
Fig. 2 is that structure shown in Fig. 1 installs the left view after actuator;
Fig. 3 is the structural representation of the utility model ball core.
In figure, 1. valve body, 2. valve gap, 3. actuator, 4. valve seat, 5. ball core, 6. valve rod, 7. lower valve rod, 8.U type groove, 9. support, 10. dish spring, 11. radial direction seal rings, 12. are wound around seal rings, 13. Upper shaft sleeves, 14. Lower shaft sleeves, 15. scrapers, 16. operation cross bars.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
As depicted in figs. 1 and 2, a kind of V-type modulating valve of valve seat construction free floating, comprise valve body 1, valve gap 2, valve seat 4, actuator 3 and be arranged on valve body 1 and valve gap 2 in and for the able to turn on or off ball core 5 coordinating of valve seat 4 and valve rod 6, lower valve rod 7, ball core 5 is provided with v-notch, valve seat 4 with valve body 1 contact position be three grades stepped, valve seat 4 be respectively equipped with radial direction seal ring 11 and dish spring 10 with two right angle ends valve body 1 contact position, valve seat 4 can float between spool 5 and valve body 1, valve body 1 lower end and valve gap 2 joints are provided with and are wound around seal ring 12, the lower end outer race of valve rod 6 is connected to Upper shaft sleeve 13, the outer race of lower valve rod 7 is connected to Lower shaft sleeve 14.The position contacting with spool 1 of valve seat 4 is arc sealing surface, and arc sealing surface is provided with scraper 15.
The air bladder formula actuator that actuator 3 is side-mounted structure, actuator 3 is connected with valve body 1 by support 9, support 9 is flat on valve body top 1, actuator 3 is installed on the front side of support 9, the interior operation cross bar 16 that is laterally equipped with of support 9, operation cross bar 16 one end are connected with actuator 3, and the middle part of operation cross bar 16 is connected with valve rod 6 is vertical.
As shown in Figure 3, ball core is provided with v-notch, and the middle part of v-notch is provided with U-shaped groove 8, is 60 ° of angles between the cell wall of U-shaped groove 8 and bottom land, and the groove width of U-shaped groove 8 is 1.5 millimeters.When needs carry out extra small Flow-rate adjustment, make valve opening below 20%, now valve regulates flow by the U-shaped groove on ball core, and the breach of V-type is inoperative; When needs carry out large Flow-rate adjustment, make valve opening more than 20%, now valve regulates flow by the v-notch of ball core, and the flow of U-shaped groove is negligible with respect to v-notch.
Above embodiment is only explanation technological thought of the present utility model; can not limit protection domain of the present utility model with this; every technological thought according to the utility model proposes, any change of doing on technological scheme basis, within all falling into protection domain of the present utility model.
Claims (5)
1. the V-type modulating valve of a valve seat construction free floating, comprise valve body, valve gap, valve seat, actuator and be arranged on valve body and valve gap in and for the able to turn on or off ball core coordinating of valve seat and valve rod, lower valve rod, it is characterized in that: described ball core is provided with v-notch, described valve seat with valve body contact position be three grades stepped, valve seat be respectively equipped with radial direction seal ring and dish spring with two right angle ends valve body contact position, valve seat can float between spool and valve body.
2. the V-type modulating valve of valve seat construction free floating according to claim 1, is characterized in that: described actuator is side-mounted structure.
3. the V-type modulating valve of valve seat construction free floating according to claim 1, is characterized in that: described valve body lower end and valve gap joint are provided with winding seal ring.
4. the V-type modulating valve of valve seat construction free floating according to claim 1, is characterized in that: the middle part of described v-notch is provided with U-shaped groove.
5. the V-type modulating valve of valve seat construction free floating according to claim 1, is characterized in that: the position contacting with spool of described valve seat is arc sealing surface, and described arc sealing surface is provided with scraper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420468176.5U CN204004532U (en) | 2014-08-19 | 2014-08-19 | The V-type modulating valve of valve seat construction free floating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420468176.5U CN204004532U (en) | 2014-08-19 | 2014-08-19 | The V-type modulating valve of valve seat construction free floating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204004532U true CN204004532U (en) | 2014-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420468176.5U Active CN204004532U (en) | 2014-08-19 | 2014-08-19 | The V-type modulating valve of valve seat construction free floating |
Country Status (1)
| Country | Link |
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| CN (1) | CN204004532U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105587885A (en) * | 2016-03-11 | 2016-05-18 | 航天长征化学工程股份有限公司 | Sealing ball valve |
| CN109210231A (en) * | 2018-10-15 | 2019-01-15 | 兰州高压阀门有限公司 | A kind of equal percentage V-type regulation ball valve |
-
2014
- 2014-08-19 CN CN201420468176.5U patent/CN204004532U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105587885A (en) * | 2016-03-11 | 2016-05-18 | 航天长征化学工程股份有限公司 | Sealing ball valve |
| CN105587885B (en) * | 2016-03-11 | 2024-05-28 | 航天长征化学工程股份有限公司 | Sealing ball valve |
| CN109210231A (en) * | 2018-10-15 | 2019-01-15 | 兰州高压阀门有限公司 | A kind of equal percentage V-type regulation ball valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 41, golden autumn Avenue, Hangzhou, Zhejiang, Fuyang Patentee after: ZHEJIANG SANFANG CONTROL VALVE Co.,Ltd. Patentee after: Shanghai Nuclear Engineering Research and Design Institute Co.,Ltd. Address before: No. 41, golden autumn Avenue, Hangzhou, Zhejiang, Fuyang Patentee before: ZHEJIANG SANFANG CONTROL VALVE Co.,Ltd. Patentee before: SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE Co.,Ltd. Address after: No. 41, golden autumn Avenue, Hangzhou, Zhejiang, Fuyang Patentee after: ZHEJIANG SANFANG CONTROL VALVE Co.,Ltd. Patentee after: SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE Co.,Ltd. Address before: No. 41, golden autumn Avenue, Hangzhou, Zhejiang, Fuyang Patentee before: ZHEJIANG SANFANG CONTROL VALVE Co.,Ltd. Patentee before: SHANGHAI NUCLEAR ENGINEERING RESEARCH & DESIGN INSTITUTE |
|
| CP01 | Change in the name or title of a patent holder |