CN204226678U - A kind of modified model choke stop evacuation valve valve pocket - Google Patents
A kind of modified model choke stop evacuation valve valve pocket Download PDFInfo
- Publication number
- CN204226678U CN204226678U CN201420690869.9U CN201420690869U CN204226678U CN 204226678 U CN204226678 U CN 204226678U CN 201420690869 U CN201420690869 U CN 201420690869U CN 204226678 U CN204226678 U CN 204226678U
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- CN
- China
- Prior art keywords
- valve
- valve pocket
- modified model
- stop evacuation
- choke stop
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- 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 - Fee Related
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Abstract
The utility model discloses a kind of modified model choke stop evacuation valve valve pocket, belong to valve field.This modified model choke stop evacuation valve valve pocket is tubular, and lower circumference is provided with at least one group of throttling groove different in size; On the same axis, each throttling groove is periodic symmetry distribution in the bottom of described throttling groove.The differential pressure adopting the utility model to effectively reduce when medium flows out is vibrated.
Description
Technical field
The utility model relates to valve field, specifically a kind of modified model choke stop evacuation valve valve pocket.
Background technique
Choke stop evacuation valve is a kind of double seal valve, plays in the conveyance conduit being mainly used in oil, rock gas, coal gas, blau gas etc., uses usually used as regulable control or cut-out.Such valve is a kind of novel throttling, cut-off, emptying product, has multistage throttle effect, the features such as restriction effect is obvious, sealing is reliable, convenient operating maintenance.
At existing choke stop evacuation valve in the throttling of valve, cut-out, equalizing orifice arranges to alleviate in operation torsion, combination seal etc. all very much progress.But in actual conditions application, still there are distinct issues: be mainly reflected in the valve good operation period not long, bad working environments occurs that quality problems are many.Particularly when High Pressure Difference, operating mode medium unholiness (such as, dust, body refuse etc.), general valve seal easily damages and occurs that the situation of interior leakage is more, and even serious jam appears in some valve.Tracing it to its cause, it is not exclusively reasonable to be mainly structural design: although valve design function all has configuration, and in fact its Functional Design structure can not extensively be suitable for, and its structure exists wretched insufficiency in self function and protecting.
Model utility content
The utility model aims to provide a kind of modified model choke stop evacuation valve valve pocket, to solve the problem of differential pressure vibration when medium flows out.
For achieving the above object, the technical solution of the utility model is as follows:
A kind of modified model choke stop evacuation valve valve pocket, it is characterized in that: described valve pocket is tubular, lower circumference is provided with at least one group of throttling groove different in size; On the same axis, each throttling groove is periodic symmetry distribution in the bottom of described throttling groove.
Further, described valve pocket upper end outer circumferential is provided with outwardly positive stop lug boss.
Further, described valve pocket lower end inner circumference is provided with spacing lacking.
Further, described valve pocket outer peripheral surface has the annular groove that at least one places sealing O shape circle.
The beneficial effects of the utility model are: tubular valve pocket lower circumference is laid with throttling groove different in size, each throttling groove periodic symmetry distribution.While the effective throttling of length throttling groove, ensure that in valve opening process, the flow shape that is in line increases progressively, and seamlessly transits to decrease differential pressure vibration when structural design medium flows out simultaneously, play the effect of noise-reducing, and reduce manufacture cost without the need to deliberately setting up noise-reducing part.With valve pocket lower end inner circumference be provided with spacing lack and valve seat mutually spacing, be provided with outwardly positive stop lug boss with valve pocket upper end outer circumferential and valve body is located mutually, make valve seat be fixed in valve body, simple and practical, need not process the structure of more fixed valve bodies on valve body, save financial cost.
Accompanying drawing explanation
Fig. 1 is the modified model choke stop evacuation valve valve pocket effect schematic diagram that the utility model provides.
Fig. 2 is the modified model choke stop evacuation valve housing configuration schematic diagram that the utility model provides.
Fig. 3 is that the throttling groove of the modified model choke stop evacuation valve valve pocket lower circumference that the utility model provides launches schematic diagram.
Fig. 4 adopts modified model choke stop evacuation valve of the present utility model.
Mark in figure: 12 for valve pocket, 29 for annular groove, 38 for throttling groove, 41 for positive stop lug boss, 42 for spacing lack.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, the utility model is described further.
As shown in Figure 1, a kind of modified model choke stop evacuation valve valve pocket, described valve pocket 12 is tubular, and lower circumference is provided with at least one group of throttling groove 38 different in size; On the same axis, each throttling groove 38 distributes in periodic symmetry in the bottom of described throttling groove 38.Described valve pocket 12 upper end outer circumferential is provided with outwardly positive stop lug boss 41.Described valve pocket 12 lower end inner circumference is provided with spacing scarce 42.Described valve pocket 12 outer peripheral surface has the annular groove 29 that at least one places sealing O shape circle.
In use, in annular groove 29, place sealing O shape circle, form interference fit with valve body, and lack 42 aligning valve seats by spacing, valve seat is fixed between valve pocket and valve body.And with positive stop lug boss 41 and valve body mutually spacing.When valve opening, the throttling groove 38 on valve pocket 12 also plays a role, and progressively slow down the scouring force of MEDIA FLOW.Effectively prevent directly washing away sealing surface, protect sealing surface, the working life of sealing surface is greatly increased.While the effective throttling of length throttling groove 38, ensure that in valve opening process, the flow shape that is in line increases progressively, and seamlessly transits to decrease differential pressure vibration when structural design medium flows out simultaneously, play the effect of noise-reducing, and reduce manufacture cost without the need to deliberately setting up noise-reducing part.The differential pressure adopting the utility model to effectively reduce when medium flows out is vibrated.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (4)
1. a modified model choke stop evacuation valve valve pocket, is characterized in that: described valve pocket is tubular, and lower circumference is provided with at least one group of throttling groove different in size; On the same axis, each throttling groove is periodic symmetry distribution in the bottom of described throttling groove.
2. modified model choke stop evacuation valve valve pocket according to claim 1, is characterized in that: described valve pocket upper end outer circumferential is provided with outwardly positive stop lug boss.
3. modified model choke stop evacuation valve valve pocket according to claim 1, is characterized in that: described valve pocket lower end inner circumference is provided with spacing lacking.
4. modified model choke stop evacuation valve valve pocket according to claim 1, is characterized in that: described valve pocket outer peripheral surface has the annular groove that at least one places sealing O shape circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420690869.9U CN204226678U (en) | 2014-11-18 | 2014-11-18 | A kind of modified model choke stop evacuation valve valve pocket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420690869.9U CN204226678U (en) | 2014-11-18 | 2014-11-18 | A kind of modified model choke stop evacuation valve valve pocket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204226678U true CN204226678U (en) | 2015-03-25 |
Family
ID=52924777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420690869.9U Expired - Fee Related CN204226678U (en) | 2014-11-18 | 2014-11-18 | A kind of modified model choke stop evacuation valve valve pocket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204226678U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104315165A (en) * | 2014-11-18 | 2015-01-28 | 自贡自高阀门有限公司 | Improved valve sleeve for throttling stop emptying valve |
-
2014
- 2014-11-18 CN CN201420690869.9U patent/CN204226678U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104315165A (en) * | 2014-11-18 | 2015-01-28 | 自贡自高阀门有限公司 | Improved valve sleeve for throttling stop emptying valve |
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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 |
Granted publication date: 20150325 Termination date: 20151118 |
|
| EXPY | Termination of patent right or utility model |