CN204533565U - The hard seal butterfly valve of valve with changeable valve seat - Google Patents
The hard seal butterfly valve of valve with changeable valve seat Download PDFInfo
- Publication number
- CN204533565U CN204533565U CN201520046149.3U CN201520046149U CN204533565U CN 204533565 U CN204533565 U CN 204533565U CN 201520046149 U CN201520046149 U CN 201520046149U CN 204533565 U CN204533565 U CN 204533565U
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- China
- Prior art keywords
- valve
- butterfly plate
- stainless steel
- valve seat
- valve body
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- Expired - Fee Related
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Abstract
The hard seal butterfly valve of a kind of valve with changeable valve seat of the utility model, comprise valve body, butterfly plate, valve rod, movable valve seat, tail-hood, turbine box, trim ring, multi-layer sealed circle and stainless steel layer, valve rod is inserted into lower shaft hole from the upper shaft hole valve body, lower shaft hole end face is sealed by tail-hood, and valve stem tip connects turbine box; Butterfly plate is in valve inner, and valve rod passes the rotating shaft axis hole of butterfly plate and valve rod and butterfly plate are all provided with perforation, and butterfly plate is fixed on valve rod through perforation by latch; Butterfly plate, multi-layer sealed circle and trim ring are cascading and butterfly plate and trim ring are fixed by the first hex screw, movable valve seat is fixed on the runner in valve body by the second hex screw, stainless steel layer posts and fixes the inwall in movable valve seat, and multi-layer sealed circle and stainless steel layer fit tightly.The utility model only needs to change movable valve seat after stainless steel layer damages, and avoids stainless steel layer in prior art must change the problem caused by valve body after damaging simultaneously.
Description
Technical field
The utility model relates to a kind of hard seal butterfly valve of valve with changeable valve seat.
Background technique
Tradition three eccentricity hard seal butterfly valve is in order to prevent the sealing surface corrosion between butterfly plate and valve seat, meeting built-up welding stainless steel lining on valve body, play antirust effect thus extend sealing surface and valve working life, but sealing surface stainless steel layer often directly heap to be welded on valve seat reprocessing and to form, sealing surface due to three eccentricity hard seal butterfly valve is a tilted conical, it is not a regular shape, process such tilted conical, need certain frock clamping just can complete, if direct built-up welding stainless steel layer on the sealing surface of valve body, carry out accurately machined words again, whole valve body clamping is so just needed to load onto in turner, valve body is excessive, frock clamping will do more heavier, waste material, also in certain degree, increase the labor intensity of workman simultaneously, thus have impact on manufacturing efficiency, moreover, because stainless steel sealing surface layer is that directly heap is welded on the valve body of valve, therefore, once sealing surface damages, whole deck valve goalkeeper scraps, even if can solution be keeped in repair, also repair in shop must be returned multiple, both the user cost that physical resources too increase user had been wasted.
Model utility content
In order to solve the problem, the utility model provides a kind of hard seal butterfly valve of valve with changeable valve seat, by movable valve seat is fixed on the runner of valve body, and fitted by the stainless steel layer installing multi-layer sealed circle and movable valve seat inwall on butterfly plate, the switch of valve is realized in valve rod rotation process, the utility model only needs to change movable valve seat after stainless steel layer damages, and avoids stainless steel layer in prior art must change the problem caused by valve body after damaging simultaneously.
The utility model realizes particular by following technological scheme:
A kind of hard seal butterfly valve of valve with changeable valve seat, comprise valve body, butterfly plate, valve rod, movable valve seat, tail-hood, turbine box, trim ring, multi-layer sealed circle and stainless steel layer, described valve rod is inserted into lower shaft hole from the upper shaft hole valve body, described lower shaft hole end face is sealed by tail-hood, and described valve stem tip connects turbine box; Described butterfly plate is in valve inner, and valve rod passes the rotating shaft axis hole of butterfly plate and valve rod and butterfly plate are all provided with perforation, and butterfly plate is fixed on valve rod through perforation by latch; Described butterfly plate, multi-layer sealed circle and trim ring are cascading and described butterfly plate and trim ring are fixed by the first hex screw, described movable valve seat is fixed on the runner in valve body by the second hex screw, described stainless steel layer posts and fixes the inwall in movable valve seat, and described multi-layer sealed circle and stainless steel layer fit tightly.
Further, the inwall of described stainless steel layer is tilted conical, and the outer wall of described multi-layer sealed circle is outer tilted conical, and the outer wall of described multi-layer sealed circle and the inwall of stainless steel layer match;
Further, the upper shaft hole of described valve body is inner stepped and diameter change is large from inside to outside, and be provided with filler between the valve body of stepped position and valve rod, upper shaft hole outer end is provided with Gland;
Further, Sealing is provided with between described movable valve seat and valve body.
The beneficial effect that the utility model produces is: the utility model only needs to change movable valve seat after stainless steel layer damages, avoid stainless steel layer in prior art must change the problem caused by valve body after damaging simultaneously, and stainless steel layer heap is welded in a demountable movable valve seat, due to movable valve seat volume comparatively valve body be much smaller, weight is also light, therefore, the volume processing the frock clamping needed for oblique cone of sealing surface of seat is little, weight wants light, save the material making frock clamping, also mitigate the labor intensity of workman simultaneously, improve manufacturing efficiency.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the utility model structural representation;
Fig. 2 is the enlarged view of local I in Fig. 1.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technological scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
As shown in Figure 1, a kind of hard seal butterfly valve of valve with changeable valve seat, comprise valve body 1, butterfly plate 2, valve rod 3, movable valve seat 9, tail-hood 5, turbine box 6, trim ring 11, multi-layer sealed circle 12 and stainless steel layer 14, described valve rod 3 is inserted into lower shaft hole from the upper shaft hole valve body 1, described lower shaft hole end face is sealed by tail-hood 5, and described valve rod 3 top connects turbine box 6; It is inner that described butterfly plate 2 is in valve body 1, and valve rod 3 passes the rotating shaft axis hole of butterfly plate 2 and valve rod 3 and butterfly plate 2 are all provided with perforation, and butterfly plate 2 is fixed on valve rod 3 through perforation by latch 4; Described butterfly plate 2, multi-layer sealed circle 12 and trim ring 11 are cascading and described butterfly plate 2 and trim ring 11 are fixed by the first hex screw 13, described movable valve seat 9 is fixed on the runner in valve body by the second hex screw 10, described stainless steel layer 14 posts and fixes the inwall in movable valve seat 9, described multi-layer sealed circle 12 and stainless steel layer 14 fit tightly, and are provided with Sealing 15 between described movable valve seat 9 and valve body 1.
This butterfly valve drives butterfly plate to rotate by the work of turbine box 6, and valve rod 3 is connected with butterfly plate 2 by latch 4, thus drive butterfly plate 2 is rotated counterclockwise, and when rotating to 90 °, valve is all opened; Otherwise the multi-layer sealed circle 12 on butterfly plate 2 fits tightly with movable valve seat 9, valve closing.
In the present embodiment, the inwall of stainless steel layer 14 is tilted conical, the outer wall of described multi-layer sealed circle 12 is outer tilted conical, and the outer wall of described multi-layer sealed circle 12 and the inwall of stainless steel layer 14 match, namely multi-layer sealed circle 12 outer ledge and stainless steel layer 14 inwall fit tightly formation sealing effect, and it is better that sealing effect is compared in the setting of simultaneously skewed setting comparatively level.
In the present embodiment the upper shaft hole of valve body 1 inner stepped and from inside to outside diameter become large, be provided with filler 8 between the valve body 1 of stepped position and valve rod 3, upper shaft hole outer end is provided with Gland 7, prevents valve rod place external leakage.
The utility model due to this valve seat be movable detachable, once the stainless steel sealing surface of movable valve seat 9 damages, only the second hex screw 10 need be unloaded, just movable valve seat 9 can be taken out, change a new valve seat to continue to use, so just can continuing to employ when not changing valve, greatly having saved the user cost of user, having saved physical resources.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; 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. the hard seal butterfly valve of a valve with changeable valve seat, it is characterized in that, comprise valve body (1), butterfly plate (2), valve rod (3), movable valve seat (9), tail-hood (5), turbine box (6), trim ring (11), multi-layer sealed circle (12) and stainless steel layer (14), described valve rod (3) is inserted into lower shaft hole from the upper shaft hole valve body (1), described lower shaft hole end face is by tail-hood (5) sealing, and described valve rod (3) top connects turbine box (6); It is inner that described butterfly plate (2) is in valve body (1), valve rod (3) through butterfly plate (2) rotating shaft axis hole and valve rod (3) and butterfly plate (2) are all provided with perforation, latch (4) through perforation butterfly plate (2) is fixed on valve rod (3); Described butterfly plate (2), multi-layer sealed circle (12) and trim ring (11) are cascading and described butterfly plate (2) and trim ring (11) are fixed by the first hex screw (13), described movable valve seat (9) is fixed on the runner in valve body by the second hex screw (10), described stainless steel layer (14) posts and fixes the inwall in movable valve seat (9), and described multi-layer sealed circle (12) and stainless steel layer (14) fit tightly.
2. the hard seal butterfly valve of valve with changeable valve seat as claimed in claim 1, it is characterized in that, the inwall of described stainless steel layer (14) is tilted conical, the outer wall of described multi-layer sealed circle (12) is outer tilted conical, and the inwall of the outer wall of described multi-layer sealed circle (12) and stainless steel layer (14) matches.
3. the hard seal butterfly valve of valve with changeable valve seat as claimed in claim 1, it is characterized in that, the upper shaft hole of described valve body (1) is inner stepped and diameter change is large from inside to outside, be provided with filler (8) between the valve body (1) of stepped position and valve rod (3), upper shaft hole outer end is provided with Gland (7).
4. the hard seal butterfly valve of valve with changeable valve seat as claimed in claim 1, is characterized in that, be provided with Sealing (15) between described movable valve seat (9) and valve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520046149.3U CN204533565U (en) | 2015-01-23 | 2015-01-23 | The hard seal butterfly valve of valve with changeable valve seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520046149.3U CN204533565U (en) | 2015-01-23 | 2015-01-23 | The hard seal butterfly valve of valve with changeable valve seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204533565U true CN204533565U (en) | 2015-08-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520046149.3U Expired - Fee Related CN204533565U (en) | 2015-01-23 | 2015-01-23 | The hard seal butterfly valve of valve with changeable valve seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204533565U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240539A (en) * | 2015-10-12 | 2016-01-13 | 罗普阀业（宜兴）有限公司 | High platform all-metal hard sealing butterfly valve |
| CN110715061A (en) * | 2019-10-23 | 2020-01-21 | 江苏神通阀门股份有限公司 | Method for replacing sealing pair of three-eccentric metal sealing butterfly valve on line |
-
2015
- 2015-01-23 CN CN201520046149.3U patent/CN204533565U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105240539A (en) * | 2015-10-12 | 2016-01-13 | 罗普阀业（宜兴）有限公司 | High platform all-metal hard sealing butterfly valve |
| CN110715061A (en) * | 2019-10-23 | 2020-01-21 | 江苏神通阀门股份有限公司 | Method for replacing sealing pair of three-eccentric metal sealing butterfly valve on line |
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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: 20150805 Termination date: 20210123 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |