CN204628616U - A kind of eccentric V-arrangement ball valve being provided with novel floating valve seat - Google Patents
A kind of eccentric V-arrangement ball valve being provided with novel floating valve seat Download PDFInfo
- Publication number
- CN204628616U CN204628616U CN201520143082.5U CN201520143082U CN204628616U CN 204628616 U CN204628616 U CN 204628616U CN 201520143082 U CN201520143082 U CN 201520143082U CN 204628616 U CN204628616 U CN 204628616U
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- valve seat
- valve
- seal ring
- ring
- eccentric
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of eccentric V-arrangement ball valve being provided with novel floating valve seat, comprise valve body, combined seal ring, preloading spring, ball core, valve seat, valve seat trim ring, clamping sleeve, dust-proof seal ring, valve rod, filler, Gland, Upper shaft sleeve, Lower shaft sleeve, lower shaft and fastening piece composition, it is characterized in that described seal ring and dust ring all adopt the graphite combined seal ring of multilayer v-shaped structure, described preloading spring is butterfly spring, described clamping sleeve one group of along the circumferential direction uniform socket head screw and valve body are fixedly connected, valve rod lower end and ball core adopt spline to connect, described Upper shaft sleeve, Lower shaft sleeve adopts self-lubricating graphite axle sleeve, there is valve seat pretension uniform force application, valve seat floats performance not by medium jam, invasion and attack impact, regulable control is accurate, valve opening and closing flexibility and reliability, the advantages such as long service life, the mixture condition being specially adapted to powdery or easy crystallization thing uses.
Description
Technical field
The utility model relates to a kind of V-arrangement ball valve, especially relates to a kind of eccentric V-arrangement ball valve being provided with novel floating valve seat.
Background technique
Generally adopt one group of spiral compression spring between the valve seat of traditional V-arrangement ball valve and trim ring, make valve seat form floating structure, prevent from swollen dead phenomenon occurs between worst hot case ball core and sealing surface of seat.And if during for fluid containing fine particle impurity, powdery or easy crystallization thing, because there is gap between valve seat and trim ring, for preventing impurity or powdery medium from invading in spring cavity volume, often take to seal in valve seat, the method that installs O type rubber ring between trim ring and valve body slides matching surface additional.Because of O type rubber ring heat resisting and pressure resisting poor-performing, once for high temperature, high pressure operating mode, the very easily aging distortion of O type rubber ring, causes impurity or powdery medium to invade spring cavity volume, make spiral compression spring jam or bonding and affect its elasticity, even disabler, makes valve seat lose float function, causes poorly sealed between valve seat and ball core and the leakage rate of valve is increased, under worst hot case, ball core and valve seat also can be extremely swollen, increase valve opening and closing moment of torsion, even normally cannot open and close, affect working life.
Summary of the invention
The utility model, for above-mentioned technical problem, devises a kind of eccentric V-arrangement ball valve being provided with novel floating valve seat.
Technical solution of the present utility model is: a kind of eccentric V-arrangement ball valve being provided with novel floating valve seat, by valve body, seal ring, preloading spring, ball core, valve seat, valve seat trim ring, clamping sleeve, dust ring, valve rod, filler, Gland, Upper shaft sleeve, Lower shaft sleeve, lower shaft and fastening piece composition, described clamping sleeve compression preloading spring produces pretightening force, valve seat trim ring is made to be pressed on ball core sphere by seal ring by sealing surface of seat, ensure that the seal pressure between ball core and sealing surface of seat, described valve seat coordinates between pilot hole with valve body slides and is provided with seal ring, and valve seat trim ring and clamping sleeve are slidably matched between pilot hole and add dust ring, it is characterized in that described seal ring and dust ring all adopt the graphite combined seal ring of multilayer v-shaped structure.Can prevent medium from between the gap that valve seat and valve body, valve seat trim ring and clamping sleeve are slidingly fitted, producing seepage respectively, impurity or powdery medium is made to invade spring cavity volume, cause preloading spring jam or bonding and affect its elasticity, even disabler, and the utilized pretension elastic allowance of the graphite combined seal ring of this multilayer v-shaped structure, heat resisting and pressure resisting performance are all far better than common O shape rubber ring.
Further, described seal ring and dust ring are combined mutually by the graphite combined seal ring of 3 ~ 5 v-shaped structures.By the mutual wedge action of v-shaped structure between each seal ring, make seal ring and the inner and outer surface that is slidably matched with it all can keep permanent seal, and there is good high-temperature stability.
Further, described preloading spring is butterfly spring, compares the multiple spiral compression springs adopting and arrange along valve seat trim ring circumference, has uniform force application, can avoid causing the advantage of valve seat uneven wear, and change easy.
Further, described clamping sleeve is fixedly connected with one group of along the circumferential direction uniform socket head screw and valve body, can avoid adopting the direct connecting structure of screw thread, can rotating force be produced and cause butterfly spring to twist in rundown process, cause elasticity pretension to exert a force uneven along valve seat circumference.
Further, described valve rod lower end and ball core adopt spline to connect, a spline tooth position is rotated a little each other by splined shaft and ball core splined hole, the object that ball core sealing sphere and the anastomotic site of sealing surface of seat are finely tuned can be reached, both improve sealed precision, again reduce assembling difficulty.
Further, described Upper shaft sleeve, Lower shaft sleeve adopt self-lubricating graphite axle sleeve, and its friction factor is little, has oil-free self lubrication performance, and wear-resisting good with resistance to high temperature, long service life.
The beneficial effect that the utility model product brings is: have valve seat pretension uniform force application, valve seat float performance not by medium jam, invasion and attack affect, regulable control is accurate, valve opening and closing flexibility and reliability, the advantages such as long service life, the mixture condition being specially adapted to powdery or easy crystallization thing uses.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is the axial section enlarged diagram of combined seal ring in the utility model.
In figure, 1-valve body, 2-seal ring, 3-preloading spring, 4-ball core, 5-valve seat, 6-valve seat trim ring, 7-clamping sleeve, 8-dust ring, 9-socket head screw, 10-valve rod, 11-filler, 12-Gland, 13-Upper shaft sleeve, 14-Lower shaft sleeve, 15-lower shaft.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further.
As in the embodiment of Fig. 1, a kind of eccentric V-arrangement ball valve being provided with novel floating valve seat, by valve body 1, seal ring 2, preloading spring 3, ball core 4, valve seat 5, valve seat trim ring 6, clamping sleeve 7, dust ring 8, valve rod 9, filler 10, Gland 11, Upper shaft sleeve 12, Lower shaft sleeve 13, lower shaft 14 and fastening piece composition, described clamping sleeve 7 compresses preloading spring 3 and produces pretightening force, valve seat trim ring 6 is made to be pressed on ball core sphere by seal ring 2 by sealing surface of seat, ensure that the seal pressure between ball core 4 and sealing surface of seat, described valve seat 5 and valve body 1 are slidably matched between pilot hole and are provided with seal ring 2, and valve seat trim ring 6 and clamping sleeve 7 are slidably matched between pilot hole and add dust ring 8, it is characterized in that described seal ring 2 and dust ring 8 all adopt the graphite combined seal ring of multilayer v-shaped structure.Can prevent medium from between the gap that valve seat and valve body, valve seat trim ring and clamping sleeve are slidably matched, producing seepage respectively, impurity or powdery medium invade spring cavity volume, cause preloading spring jam or bonding and affect its elasticity, even disabler.And the utilized pretension elastic allowance of the graphite combined seal ring of this multilayer v-shaped structure, heat resisting and pressure resisting performance are all far better than common O shape rubber ring.
Described preloading spring 3 adopts butterfly spring, compares the multiple spiral compression springs adopting and arrange along valve seat trim ring circumference, have uniform force application, can avoid causing the advantage of valve seat uneven wear, and part is changed easy less.
Described clamping sleeve 7 adopts one group of along the circumferential direction uniform socket head screw 9 to be fixedly connected with valve body 1, can avoid adopting the direct coupled structure of screw thread, can rotating force be produced and cause butterfly spring to occur reversing in rundown process, causing elasticity pretension to exert a force uneven along valve seat circumference.
The lower end of described valve rod 10 adopts spline to connect with ball core 4, by mutually rotating the position, direction of a spline tooth between stem splines and ball core splined hole a little, the object that ball core sealing sphere and the anastomotic site of sealing surface of seat are finely tuned can be reached, both improve sealed precision, again reduce assembling difficulty.
Described Upper shaft sleeve 13, Lower shaft sleeve 14 adopt self-lubricating graphite axle sleeve, and its friction factor is little, have oil-free self lubrication performance, and wear-resisting good with resistance to high temperature, long service life.
Described seal ring 2 is as shown in Figure 2 combined by the graphite combined seal ring of 3 ~ 5 v-shaped structures mutually with dust ring 8, by the mutual wedge action of v-shaped structure between each seal ring, the inner and outer surface making seal ring and be slidably matched with it all can keep permanent seal, and has good high-temperature stability.
Claims (6)
1. one kind is provided with the eccentric V-arrangement ball valve of novel floating valve seat, by valve body, seal ring, preloading spring, ball core, valve seat, valve seat trim ring, clamping sleeve, dust ring, valve rod, filler, Gland, Upper shaft sleeve, Lower shaft sleeve, lower shaft and fastening piece composition, described clamping sleeve compression preloading spring produces pretightening force, valve seat trim ring is made to be pressed on ball core sphere by seal ring by sealing surface of seat, ensure that the seal pressure between ball core and sealing surface of seat, described valve seat coordinates between pilot hole with valve body slides and is provided with seal ring, and valve seat trim ring and clamping sleeve are slidably matched between pilot hole and add dust ring, it is characterized in that described seal ring and dust ring all adopt the graphite combined seal ring of multilayer v-shaped structure.
2. a kind of eccentric V-arrangement ball valve being provided with novel floating valve seat according to claim 1, is characterized in that: described seal ring and dust ring are combined mutually by the graphite combined seal ring of 3 ~ 5 v-shaped structures.
3. a kind of eccentric V-arrangement ball valve being provided with novel floating valve seat according to claim 1, is characterized in that: described preloading spring is butterfly spring.
4. a kind of eccentric V-arrangement ball valve being provided with novel floating valve seat according to claim 1, is characterized in that: described clamping sleeve is fixedly connected with one group of along the circumferential direction uniform socket head screw and valve body.
5. a kind of eccentric V-arrangement ball valve being provided with novel floating valve seat according to claim 1, is characterized in that: described valve rod lower end and ball core adopt spline to connect.
6. a kind of eccentric V-arrangement ball valve being provided with novel floating valve seat according to claim 1, is characterized in that: described Upper shaft sleeve, Lower shaft sleeve are self-lubricating graphite axle sleeves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520143082.5U CN204628616U (en) | 2015-03-13 | 2015-03-13 | A kind of eccentric V-arrangement ball valve being provided with novel floating valve seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520143082.5U CN204628616U (en) | 2015-03-13 | 2015-03-13 | A kind of eccentric V-arrangement ball valve being provided with novel floating valve seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204628616U true CN204628616U (en) | 2015-09-09 |
Family
ID=54047648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520143082.5U Expired - Fee Related CN204628616U (en) | 2015-03-13 | 2015-03-13 | A kind of eccentric V-arrangement ball valve being provided with novel floating valve seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204628616U (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 |
| CN111828675A (en) * | 2020-08-07 | 2020-10-27 | 郑州铝都阀门有限公司 | Sealed ball valve that revolves that area locking clamping ring and disk seat can one-way float |
-
2015
- 2015-03-13 CN CN201520143082.5U patent/CN204628616U/en not_active Expired - Fee Related
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 |
| CN111828675A (en) * | 2020-08-07 | 2020-10-27 | 郑州铝都阀门有限公司 | Sealed ball valve that revolves that area locking clamping ring and disk seat can one-way float |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150909 Termination date: 20190313 |