CN206072379U - Steam turbine generator bellows stop valve - Google Patents
Steam turbine generator bellows stop valve Download PDFInfo
- Publication number
- CN206072379U CN206072379U CN201621090796.5U CN201621090796U CN206072379U CN 206072379 U CN206072379 U CN 206072379U CN 201621090796 U CN201621090796 U CN 201621090796U CN 206072379 U CN206072379 U CN 206072379U
- Authority
- CN
- China
- Prior art keywords
- valve
- flap
- column
- stop valve
- bellows stop
- 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 - Fee Related
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Abstract
The utility model discloses steam turbine generator bellows stop valve, is related to steam turbine generator field, and in particular to a kind of bellows stop valve for steam turbine generator.Including valve body and flap, the lower end for having liftable valve rod, valve rod in valve body is provided with flap；Also include column and rubbery sealed body；The lateral surface of flap has sealing gasket, is provided with a column in the bottom center position of flap；Rubbery sealed body is housed, rubber seal external surface is flat chondritic outside the column, rubbery sealed body is set on column.This utility model solves existing valve stem spacing bellows stop valve and is only provided with one layer of sealing, easily causes the problem of the fluid leakage in bellows stop valve.
Description
Technical field
This utility model is related to steam turbine generator field, and in particular to a kind of corrugated tube for steam turbine generator ends
Valve.
Background technology
Bellows stop valve is also sylphon seal stop valve, is welded by automatic seam-welding, fluid media (medium) and air it
Between formed a metallic barrier, it is ensured that the design of valve rod zero leakage.Bellows structure, rustless steel are adopted inside bellows stop valve
Bellows lower end be welded on valve rod, to prevent process fluid etch valve rod.The other end is placed between valve body and valve gap and constitutes
Static seal.If can also avoid leakage, corrugated tube from being welded in valve rod holding using dual Seal Design ripple tube failure valve stem packing
Stable runnability, it is to avoid as valve plug vibration causes valve rod to vibrate.It is best suited for steam, inflammable, explosive, conduction oil, height
On the pipeline of the medium such as purity, poisonous.Chinese patent literature CN202017772U discloses valve stem spacing bellows stop valve, should
The bellows stop valve of patent is that, when corrugated tube is compressed to setting limit position, then rotation hand wheel cannot also allow valve rod to rise,
So as to be effectively protected valve and corrugated tube.
The valve stem spacing bellows stop valve of above-mentioned patent is only provided with one layer of sealing, the fluid in valve in flap lateral surface
Some bands are corrosive, and easily cause seal failure, cause the fluid in bellows stop valve to leak.
The content of the invention
This utility model provides a kind of steam turbine generator bellows stop valve, and this utility model solves existing valve rod limit
Position bellows stop valve is only provided with one layer of sealing, easily causes the problem of the fluid leakage in bellows stop valve.
To solve the above problems, this utility model is adopted the following technical scheme that：Steam turbine generator bellows stop valve, including
Valve body and flap, the lower end for having liftable valve rod, valve rod in valve body are provided with flap；Also include column and rubbery sealed body；
The lateral surface of flap has sealing gasket, is provided with a column in the bottom center position of flap；It is close equipped with rubber outside column
Feng Ti, rubber seal external surface is flat chondritic, and rubbery sealed body is set on column.
This utility model is to be provided with the column of cuboid and oblate rubbery sealed body by valve in the bottom surface of flap
The lower surface of mouth is sealed, and realizes the double containment of valve port；The fluid leakage in bellows stop valve, sealing effect are not resulted in
It is really good.
Description of the drawings
Fig. 1 is this utility model structural representation（State diagram when bellows stop valve is opened）；
Fig. 2 is state diagram when bellows stop valve is closed.
Symbol description in figure：Valve body 1, flap 2, corrugated tube 3, valve gap 4, valve rod 5, valve stem nut 6, stopper slot 7, handwheel 8,
Screw thread 9, column 10, rubbery sealed body 11, limited block 12, pin 13.
Specific embodiment
This utility model is described in detail with optimal embodiment below.
As shown in Figure 1-2, steam turbine generator bellows stop valve, including valve body 1 and flap 2, and corrugated tube 3, valve gap
4th, valve rod 5, valve stem nut 6, stopper slot 7, handwheel 8, screw thread 9, limited block 12 and pin 13；There is liftable valve rod 5 in valve body 1,
The lower end of valve rod 5 is provided with flap 2, and valve rod 5 stretches into valve body 1 through the through hole on the valve gap 4 set by 1 side wall of valve body, in valve
The corrugated tube 3 of contact valve gap 4 and flap 2 is arranged with valve rod 5 between lid 4 and flap 2,4 top position of valve gap is pivoted with valve
Stem nut 6, valve stem nut 6 are connected firmly with handwheel 8, and on valve rod 5, end is screw thread 9 and is mutually screwed togather with valve stem nut 6, rotation hand wheel
8, valve rod 5 will be risen or fallen so as to opening/shutting valve；Valve rod 5 is provided with a circle stopper slot 7 in 9 lower position of screw thread.Above-mentioned knot
Structure is identical with valve stem spacing bellows stop valve part-structure disclosed in background technology Chinese patent literature CN202017772U.
Inventive point of the present utility model is：Steam turbine generator bellows stop valve also includes column 10 and rubbery sealed body
11；The lateral surface of flap 2 has sealing gasket, is provided with a column 10 in the bottom center position of flap 2；Fill outside column 10
There is a rubbery sealed body 11,11 outer surface of rubbery sealed body is flat chondritic, rubbery sealed body 11 is set on column 10.
As shown in figure 1, when valve opening, corrugated tube compression, flap rise to correct position（Valve is considered as unlatching and arrives
Position）.As shown in Fig. 2 when the valve is closed, corrugated tube stretching, flap decline, and flap lateral surface sealing gasket will be valve port upper surface close
Envelope, flap bottom surface oblate spheroid shape rubbery sealed body edge are compressed, and lower to valve port bottom, and by the face seal of valve port lower end, realize
The double containment of valve port, good sealing effect.
Finally it should be noted that：Obviously, above-described embodiment is only intended to clearly illustrate this utility model example,
And the not restriction to embodiment.For those of ordinary skill in the field, may be used also on the basis of the above description
To make other changes in different forms.There is no need to be exhaustive to all of embodiment.And thus
It is amplified obvious change or change still in protection domain of the present utility model among.
Claims (1)
1. steam turbine generator bellows stop valve, including valve body and flap, have liftable valve rod, the lower end of valve rod in valve body
It is provided with flap；Characterized in that, also including column and rubbery sealed body；The lateral surface of flap has sealing gasket, in the bottom surface of flap
Center is provided with a column；Rubbery sealed body is housed outside column, rubber seal external surface is flat chondritic,
Rubbery sealed body is set on column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621090796.5U CN206072379U (en) | 2016-09-29 | 2016-09-29 | Steam turbine generator bellows stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621090796.5U CN206072379U (en) | 2016-09-29 | 2016-09-29 | Steam turbine generator bellows stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206072379U true CN206072379U (en) | 2017-04-05 |
Family
ID=58439720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621090796.5U Expired - Fee Related CN206072379U (en) | 2016-09-29 | 2016-09-29 | Steam turbine generator bellows stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206072379U (en) |
-
2016
- 2016-09-29 CN CN201621090796.5U patent/CN206072379U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20170405 Termination date: 20180929 |