CN202659942U - Double sealing valve seat with auxiliary sealing - Google Patents
Double sealing valve seat with auxiliary sealing Download PDFInfo
- Publication number
- CN202659942U CN202659942U CN 201220308234 CN201220308234U CN202659942U CN 202659942 U CN202659942 U CN 202659942U CN 201220308234 CN201220308234 CN 201220308234 CN 201220308234 U CN201220308234 U CN 201220308234U CN 202659942 U CN202659942 U CN 202659942U
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- CN
- China
- Prior art keywords
- valve seat
- split
- valve
- seat
- auxiliary
- 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.)
- Expired - Lifetime
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Abstract
The utility model discloses a double sealing valve seat with auxiliary sealing. The double sealing valve seat comprises a valve seat, wherein the valve seat comprises split main valve seats; each split main valve seat is internally provided with a valve seat fluid channel; a valve seat groove through which a valve plate penetrates is cooperatively formed at one side opposite to the two split main valve seats; a first main sealing member is arranged on the side wall opposite to the two split main valve seats; a second main sealing member is arranged at one side, depart from the valve seat groove, of the two split main valve seats; a split sub valve seat is sleeved at one side, depart from the valve seat fluid channel, of the split main valve seats; one side of the split sub valve seat is close to the valve plate and is hermetically matched with the valve plate; a regulating ring is arranged at one side of the split sub valve seat; the regulating ring is sleeved outside the split main valve seats; the outer side of the regulating ring is butted to the split sub valve seat; and the inner side of the regulating ring is butted to the outside walls of the split main valve seats. The double sealing valve seat with the auxiliary sealing, disclosed by the utility model, comprises double valve seats; and after the split main valve seats are damaged, the split sub valve seat and the related sealing members can continuously keep a sealing state, so that the sealing of a valve is ensured, therefore the service life of the valve is prolonged.
Description
Technical field
The utility model relates to the technical field of sealing technology of valve, is specifically related to a kind of Double-seal valve seat with auxiliary seal.
Background technique
At present, existing valve plate valve generally comprises valve body, valve rod, valve rod driving mechanism.Be provided with the fluid passage and the valve stem passage that are interconnected in the valve body, valve rod stretches in the valve body by valve stem passage, and be provided with at the end that valve rod stretches into valve body and can close or open the valve plate of fluid passage, the joining place of fluid passage and valve stem passage is provided with valve seat, valve seat cooperates with the valve body static seal, cooperate with the flap motive sealing, the valve seat of this valve adopts the valve seat of individual layer to seal, namely only has a valve seat, be provided with seal ring at valve seat and valve plate movable sealing cooperation place, at valve seat and valve seal cooperation place Sealing.This type of valve seat is easy to wearing and tearing under the long-term use of valve plate, after the Sealing valve seat damage, without other insurance measures, valve is leaked.
Summary of the invention
The purpose of this utility model is: for the deficiencies in the prior art, the utility model provides a kind of sealing effect better with the Double-seal valve seat of auxiliary seal.
To achieve these goals, the utility model has adopted following technological scheme:
A kind of Double-seal valve seat with auxiliary seal, comprise the valve seat of being located in the valve, described valve seat comprises the split main valve seat, be provided with the valve seat fluid passage in the split main valve seat, the valve seat groove that the side that two split main valve seats are relative cooperates formation to supply the valve plate of valve to penetrate, and be provided with the first primary seal at the relative sidewall of two split valve seats, the side that described split master main valve seat deviates from the valve seat groove is provided with the second primary seal, the side that described split valve seat deviates from the valve seat fluid passage is arranged with the split auxiliary-seat, one side of split auxiliary-seat is near the valve plate of valve, and be sealed and matched with the valve plate of valve, the split auxiliary-seat is provided with petrin away from a side of valve plate, described petrin is sheathed on outside the split main valve seat, and the outside of petrin and split auxiliary-seat offset, and the outer side wall of the inboard of petrin and split main valve seat offsets.
As preferably, described split main valve seat outer side wall is provided with the main valve seat restraining groove by a side of valve seat groove and valve plate, described split auxiliary-seat madial wall is provided with the auxiliary-seat fixture block by a side of valve seat groove and valve plate, and described auxiliary-seat fixture block engages setting with the main valve seat restraining groove.After adopting above-mentioned preferred version, can make the split auxiliary-seat tightly fixing by split main valve seat and valve plate, avoid the slippage of split auxiliary-seat, further improve the stability of valve seat construction.
As preferably, the outer end of described split main valve seat outer side wall is provided with spacing concave surface, and the inboard of described petrin and spacing concave surface offset.After adopting above-mentioned preferred version, it is spacing reliably that the outer side wall of petrin and split main valve seat is formed, and avoids petrin to embed under pressure in the slit between split main valve body and the split auxiliary valve body.
As preferably, described split auxiliary-seat is provided with the split Sealing by a side of the valve plate of valve, forms being sealed and matched of valve plate of split auxiliary-seat described above and valve, and described split Sealing is the O RunddichtringO.After adopting above-mentioned preferred version, sealing effect is better.
As preferably, the outer side of described split main valve seat is provided with the 3rd primary seal, forms being sealed and matched of split main valve seat outer side wall and split auxiliary-seat madial wall.After adopting above-mentioned preferred version, make the secondary Sealing of split primary seal and split form further sealing, sealing effect is better.
As preferably, described the first primary seal and the second primary seal are the O RunddichtringO.After adopting above-mentioned preferred version, sealing effect is better.
Double-seal valve seat with auxiliary seal of the present utility model has dual-seat, and after the split main valve seat damaged, split auxiliary-seat and associated seal can continue to keep sealing, have guaranteed the sealing of valve, have improved the working life of valve.
Description of drawings
Fig. 1 is the structural representation of the utility model Double-seal valve seat when being installed in the valve;
Fig. 2 is the partial enlarged drawing at A place among Fig. 1;
Fig. 3 is the partial enlarged drawing at B place among Fig. 2.
Embodiment
Such as Fig. 1, Fig. 2 and shown in Figure 3, embodiment of the present utility model is a kind of Double-seal valve seat with auxiliary seal specifically, comprise the valve seat in the valve body 5 of being located at valve, valve seat comprises split main valve seat 2, be provided with valve seat fluid passage 21 in the split main valve seat 2, the valve seat groove 22 that two split main valve seats, 21 relative sides cooperate formation to supply the valve plate 1 of valve to penetrate, and being provided with the first primary seal 23 at two split valve seats, 2 relative sidewalls, the side that split main valve seat 2 deviates from valve seat groove 22 is provided with the second primary seal 24.The side that split main valve seat 2 deviates from valve seat fluid passage 21 is arranged with split auxiliary-seat 3.One side of split auxiliary-seat 3 is near the valve plate 1 of valve, and be sealed and matched with the valve plate 1 of valve, split auxiliary-seat 3 is provided with petrin 4 away from a side of valve plate 1, petrin 4 is sheathed on outside the split main valve seat 2, the outside of petrin 4 and split auxiliary-seat 3 offset, and the outer side wall of the inboard of petrin 4 and split main valve seat 2 offsets.
Split main valve seat 2 outer side walls are provided with main valve seat restraining groove 25 by a side of valve seat groove 22 and valve plate 1, and split auxiliary-seat 3 madial walls are provided with auxiliary-seat fixture block 31 by a side of valve seat groove 22 and valve plate 1, and auxiliary-seat fixture block 31 engages setting with main valve seat restraining groove 25.The outer end of split main valve seat 2 outer side walls is provided with spacing concave surface 26, and the inboard of petrin 4 and spacing concave surface 26 offset.Split main valve seat 2 outer sides are provided with the 3rd primary seal 27, form being sealed and matched of madial wall of the outer side wall of split main valve seat 2 and split auxiliary-seat 2.The seal ring that 23 of the first primary seals, the second primary seal 24 and the 3rd primary seal 27 adopt is the O RunddichtringO.
Split auxiliary-seat 3 is provided with split Sealing 32 by a side of the valve plate 1 of valve, forms being sealed and matched of valve plate 1 of above-mentioned split auxiliary-seat 3 and valve, and split Sealing 32 is the O RunddichtringO.
During work, when valve plate 1 is closed fully, fluid enters the generation upstream pressure, promote valve plate 1, valve plate 1 firmly is fitted in is positioned on dirty the split main valve seat 2 and split auxiliary-seat 3, simultaneously, the petrin 4 on the dirty split main valve seat 2 compresses this split main valve seat 2 and split auxiliary-seat 3 to valve plate 1 direction, guarantees valve plate 1 and dirty split main valve seat 2 and split auxiliary-seat 3 tight seals.Petrin 4 on the split main valve seat 2 at upper reaches compresses this split main valve seat 2 and split auxiliary-seat 3 to valve plate 1 direction, the elastic force of the second primary seal 24 on the split main valve seat 2 also compresses split main valve seat 2 to valve plate 1 direction.When releasing valve body 5 chamber pressure, can discharge additional effect in the power of fastening of valve seat.The pressure reduction that acts on a whole set of valve seat can produce a kind of " piston " power, can more promote valve seat, makes split main valve seat 2 and split auxiliary-seat 3 more compress valve plate 1.
After split main valve seat 2 damages, 3 main seal actions of split auxiliary-seat.If pressure leakage is split main valve seat 2 inner surfaces that pass damage, pipeline pressure can make split auxiliary-seat 3 compress valve plate 1, continues performance sealing pressure maintaining effect.
Claims (6)
1. Double-seal valve seat with auxiliary seal, comprise the valve seat of being located in the valve, it is characterized in that: described valve seat comprises the split main valve seat, be provided with the valve seat fluid passage in the split main valve seat, the valve seat groove that the side that two split main valve seats are relative cooperates formation to supply the valve plate of valve to penetrate, and be provided with the first primary seal at the relative sidewall of two split valve seats, the side that described split main valve seat deviates from the valve seat groove is provided with the second primary seal, the side that described split main valve seat deviates from the valve seat fluid passage is arranged with the split auxiliary-seat, one side of split auxiliary-seat is near the valve plate of valve, and be sealed and matched with the valve plate of valve, the split auxiliary-seat is provided with petrin away from a side of valve plate, described petrin is sheathed on outside the split main valve seat, the outside of petrin and split auxiliary-seat offset, and the outer side wall of the inboard of petrin and split main valve seat offsets.
2. the Double-seal valve seat with auxiliary seal according to claim 1, it is characterized in that: described split main valve seat outer side wall is provided with the main valve seat restraining groove by a side of valve seat groove and valve plate, described split auxiliary-seat madial wall is provided with the auxiliary-seat fixture block by a side of valve seat groove and valve plate, and described auxiliary-seat fixture block engages setting with the main valve seat restraining groove.
3. the Double-seal valve seat with auxiliary seal according to claim 1, it is characterized in that: the outer end of described split main valve seat outer side wall is provided with spacing concave surface, and the inboard of described petrin and spacing concave surface offset.
4. the Double-seal valve seat with auxiliary seal according to claim 1, it is characterized in that: described split auxiliary-seat is provided with the split Sealing by a side of the valve plate of valve, form being sealed and matched of valve plate of split auxiliary-seat described above and valve, described split Sealing is the O RunddichtringO.
5. the Double-seal valve seat with auxiliary seal according to claim 1, it is characterized in that: the outer side of described split main valve seat is provided with the 3rd primary seal, forms being sealed and matched of split main valve seat outer side wall and split auxiliary-seat madial wall.
6. the Double-seal valve seat with auxiliary seal according to claim 1, it is characterized in that: described the first primary seal and the second primary seal are the O RunddichtringO.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220308234 CN202659942U (en) | 2012-06-26 | 2012-06-26 | Double sealing valve seat with auxiliary sealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220308234 CN202659942U (en) | 2012-06-26 | 2012-06-26 | Double sealing valve seat with auxiliary sealing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202659942U true CN202659942U (en) | 2013-01-09 |
Family
ID=47454851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220308234 Expired - Lifetime CN202659942U (en) | 2012-06-26 | 2012-06-26 | Double sealing valve seat with auxiliary sealing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202659942U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103672015A (en) * | 2013-11-30 | 2014-03-26 | 无锡智能自控工程股份有限公司 | Balanced metal valve seat sealing structure for high-temperature high-pressure regulating ball valve |
-
2012
- 2012-06-26 CN CN 201220308234 patent/CN202659942U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103672015A (en) * | 2013-11-30 | 2014-03-26 | 无锡智能自控工程股份有限公司 | Balanced metal valve seat sealing structure for high-temperature high-pressure regulating ball valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130109 |
|
| CX01 | Expiry of patent term |