CN208348654U - The packing seal structure of oil thermal recovery shut-off valve - Google Patents
The packing seal structure of oil thermal recovery shut-off valve Download PDFInfo
- Publication number
- CN208348654U CN208348654U CN201820847374.0U CN201820847374U CN208348654U CN 208348654 U CN208348654 U CN 208348654U CN 201820847374 U CN201820847374 U CN 201820847374U CN 208348654 U CN208348654 U CN 208348654U
- Authority
- CN
- China
- Prior art keywords
- ring
- valve
- thermal recovery
- seal structure
- filler unit
- 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
Links
- 238000012856 packing Methods 0.000 title claims abstract description 34
- 238000011084 recovery Methods 0.000 title claims abstract description 30
- 239000000945 filler Substances 0.000 claims abstract description 46
- 210000004907 gland Anatomy 0.000 claims abstract description 22
- 238000007789 sealing Methods 0.000 claims abstract description 21
- 239000000835 fiber Substances 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 7
- 229910052799 carbon Inorganic materials 0.000 claims description 7
- 239000000919 ceramic Substances 0.000 claims description 6
- 229920002449 FKM Polymers 0.000 claims description 4
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 4
- 229920001971 elastomer Polymers 0.000 claims description 4
- 229910052731 fluorine Inorganic materials 0.000 claims description 4
- 239000011737 fluorine Substances 0.000 claims description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 4
- 229920000459 Nitrile rubber Polymers 0.000 claims description 3
- -1 polytetrafluoroethylene Polymers 0.000 claims description 2
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
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- Details Of Valves (AREA)
Abstract
The utility model discloses a kind of packing seal structure of oil thermal recovery shut-off valve, comprising: gland, what can be moved is set on valve rod；Stuffing-box is set on the valve rod and is located at the lower end of the gland, ring-shaped cavity is equipped between the stuffing-box and the valve rod；Airtight and watertight padding, be filled in the ring-shaped cavity being made of the gland, the stuffing-box and the valve rod, the airtight and watertight padding include the upper gasket ring that the ring-shaped cavity top is set, be connected to the upper gasket ring bottom end the first filler unit, be connected to first filler unit bottom end sealing ring, be connected to the second filler unit of the sealing ring bottom end and the lower gasket ring of the ring-shaped cavity bottom end be set.The packing seal structure of oil thermal recovery shut-off valve described in the utility model carries out the sealing to shut-off valve by using double-layer seal filler unit, and the packing seal structure of the oil thermal recovery shut-off valve is made to have preferable leakproofness.
Description
Technical field
The utility model relates to shut-off valve packing seal structure technical fields, and in particular to a kind of oil thermal recovery shut-off valve
Packing seal structure.
Background technique
It is main in such a way that injection steam carries out thermal recovery during the thickened oil recovery of China, in the mistake of thermal recovery
Cheng Zhong, operating temperature are sometime up to 200-350 DEG C, and operating pressure requires valve under such operating condition in 20MPa or so
There is preferable leakproofness, open and close the features such as flexible to operation, during thermal recovery, shut-off valve is commonly used valve
Body, currently, the existing shut-off valve for thermal recovery generally has the technical issues of leaking at high temperature under high pressure.
For example, application No. is the Chinese patent literatures of CN201220381058.1 to disclose a kind of oil thermal recovery shut-off valve
Packing seal structure includes the thruster for being located at valve chamber lower part, and thruster top is equipped with lower scraper rings, and lower scraper rings top is set
There are upper scraper rings, upper scraper rings top is equipped with gasket ring, and gasket ring top is equipped with gasket, and gasket filler is located in filler, filler top
Equipped with pressing sleeve, under pretightning force effect, power reaches entire filler depth, forms contact labyrinth seal, while passing through valve chamber internal pressure
Effect pushes thruster to slide axially along valve rod and acts on mounted in pairs scraper rings, and from interior sealing, while gasket zinc foil auxiliary is electric
Chemoproection achievees the purpose that valve rod switch rotates flexible, good seal performance.
The prior art as above there is technical issues that shut-off valve at high temperature under high pressure, for of the existing technology
Above-mentioned technical problem, the present inventor propose a kind of packing seal structure of oil thermal recovery shut-off valve.
Utility model content
The utility model provides a kind of packing seal structure of oil thermal recovery shut-off valve, and the oil thermal recovery shut-off valve is filled out
Expect that sealing structure carries out the sealing to shut-off valve by using double-layer seal filler unit, makes filling out for the oil thermal recovery shut-off valve
Material sealing structure has preferable leakproofness.
In order to achieve the above objectives, the utility model uses following technical scheme:
A kind of packing seal structure of oil thermal recovery shut-off valve, comprising:
Gland, what can be moved is set on valve rod；
Stuffing-box is set on the valve rod and is located at the lower end of the gland, the stuffing-box and the valve rod
Between be equipped with ring-shaped cavity；
Airtight and watertight padding is filled in the ring-shaped cavity being made of the gland, the stuffing-box and the valve rod, institute
State airtight and watertight padding include the upper gasket ring that the ring-shaped cavity top is set, be connected to the upper gasket ring bottom end the first filler
Unit, be connected to first filler unit bottom end sealing ring, be connected to the second filler unit of the sealing ring bottom end
With the lower gasket ring that the ring-shaped cavity bottom end is arranged in, the bottom end of second filler unit is connected to the top of the lower gasket ring
End, wherein first filler unit, the sealing ring and second filler unit are arranged in the ring-shaped cavity.
Further, the gland is equipped with ring flange, and the gland is connected to described fill out by ring flange
Expect the top of letter.
Further, the upper gasket ring and the lower gasket ring include the 2 nitrile rubber gaskets to fit together.
Further, first filler unit is carbon fibre packing material.
Further, second filler unit is ceramic fibre disk root timber matter.
Further, the sealing ring is VITON fluorine element rubber seal.
Further, valve lever bushing layer is also arranged on the valve rod, the material of the valve lever bushing layer is polytetrafluoroethyl-ne
Alkene.
Compared with prior art, the superior effect of the utility model is:
1, the packing seal structure of oil thermal recovery shut-off valve described in the utility model, by being equipped with upper gasket ring,
One filler unit, sealing ring, the second filler unit and lower gasket ring, keep the filler of the oil thermal recovery shut-off valve in the utility model close
Seal structure has preferable leakproofness；
2, the packing seal structure of oil thermal recovery shut-off valve described in the utility model, by the way that the second filler unit to be arranged
For ceramic fibre disk root timber matter；Carbon fibre packing material is set by the first filler unit, there is the airtight and watertight padding preferably
High temperature resistance.
Detailed description of the invention
Fig. 1 is the cross-sectional view of the packing seal structure of oil thermal recovery shut-off valve in the utility model embodiment 1:
Fig. 2 is the schematic perspective view of the first filler unit in the utility model embodiment 1；
Fig. 3 is the schematic perspective view of the first filler unit in the utility model embodiment 3.
Appended drawing reference:
1- gland, 2- valve rod, 21- valve lever bushing layer, 3- stuffing-box, 4- airtight and watertight padding, the upper gasket ring of 41-, 42- first
Gasket ring, 5- ring flange, 51- fastening bolt, the first O shape of 6- under filler unit, 43- sealing ring, the second filler unit of 44-, 45-
Circle, the second O-ring of 7-.
Specific embodiment
In order to be more clearly understood that the above objects, features, and advantages of the utility model, with reference to the accompanying drawing and have
The utility model is further described in detail in body embodiment, it should be noted that in the absence of conflict, this Shen
The feature in embodiment and embodiment please can be combined with each other.
Embodiment 1
As shown in Fig. 1, a kind of packing seal structure of oil thermal recovery shut-off valve, comprising:
Gland 1, what can be moved is set on valve rod 2；
Stuffing-box 3, is set on the valve rod 2 and is located at the lower end of the gland 1, the stuffing-box 3 and described
Ring-shaped cavity is equipped between valve rod 2；
Airtight and watertight padding 4 is filled in the ring-shaped cavity being made of the gland 1, the stuffing-box 3 and the valve rod 2
Interior, the airtight and watertight padding 4 includes that the upper gasket ring 41 on the ring-shaped cavity top is arranged in, is connected to the bottom end of the upper gasket ring 41
The first filler unit 42, be connected to first filler unit 42 bottom end sealing ring 43, be connected to the sealing ring 43
Second filler unit 44 of bottom end and the lower gasket ring 45 that the ring-shaped cavity bottom end is set, the bottom of second filler unit 44
End is connected to the top of the lower gasket ring 45, wherein first filler unit 42, the sealing ring 43 and second filler
Unit 44 is arranged in the ring-shaped cavity.Wherein, the stuffing-box 3 is connect with the valve seal of shut-off valve.
The upper gasket ring 41 and the lower gasket ring 45 include the 2 nitrile rubber gaskets to fit together.
First filler unit 42 is carbon fibre packing material.
Second filler unit 44 is ceramic fibre disk root timber matter.
The sealing ring 43 is VITON fluorine element rubber seal.
The carbon fibre packing, the ceramic fibre packing and the VITON fluorine element rubber seal all have well
High temperature resistance and pressure-resistant performance, the high temperature and high pressure condition being suitable in thermal process.
Valve lever bushing layer 21 is also arranged on the valve rod 2, the material of the valve lever bushing layer 21 is polytetrafluoroethylene (PTFE).
As shown in Fig. 2, first filler unit 42 and second filler unit 44 can use the side of spiral winding
Formula, wherein the mode of above-mentioned winding refers to the canoe of carbon fibre packing or ceramic fibre packing.
The shut-off valve addressed in the present embodiment can be common shut-off valve in current oil thermal recovery operation.For example, straight
Streaming high temperature break valve.
The gland 1 is equipped with ring flange 5, and the gland 1 is connected to the stuffing-box 3 by ring flange 5
Top.The ring flange 5 is equipped with 8-12 fastening bolt 51, and the top of the stuffing-box 3 offers and fastening bolt 51
The bolt hole of cooperation, the gland 1 adjust 1 He of gland by the fastening bolt 51 on the ring flange 5
The distance between described stuffing-box 3, so that the airtight and watertight padding 4 be made to compress.
Embodiment 2
The first O-ring 6 is additionally provided between the inner sidewall and gland 1 on 3 top of stuffing-box, under the stuffing-box 3
The second O-ring 7 is additionally provided between portion and the valve lever bushing layer 21, wherein first O-ring 6 and second O-ring 7
It is carbon seal ring.Only first O-ring 6 and second O-ring 7 are defined in the present embodiment, except this it
Outside, in the same manner as in Example 1.
Embodiment 3
As shown in figure 3, first filler unit 42 is arranged in the ring-shaped cavity by the way of packing circle,
In, the packing circle successively stacks.Only the packing filling mode of the first filler unit 42 is defined in the present embodiment, is removed
It is in the same manner as in Example 1 except this.
The present utility model is not limited to the above embodiments, and the above embodiments and description only describe this realities
With novel principle, on the premise of not departing from the spirit and scope of the utility model, the utility model also have various change and
It improves, these various changes and improvements fall within the scope of the claimed invention.The utility model requires protection scope by
Appended claims defines.
Claims (7)
1. a kind of packing seal structure of oil thermal recovery shut-off valve characterized by comprising
Gland, what can be moved is set on valve rod；
Stuffing-box is set on the valve rod and is located at the lower end of the gland, between the stuffing-box and the valve rod
Equipped with ring-shaped cavity；
Airtight and watertight padding is filled in the ring-shaped cavity being made of the gland, the stuffing-box and the valve rod, described close
Packing material include the upper gasket ring that the ring-shaped cavity top is set, be connected to the upper gasket ring bottom end the first filler list
Member, be connected to first filler unit bottom end sealing ring, be connected to the sealing ring bottom end the second filler unit and
The lower gasket ring of the ring-shaped cavity bottom end is set, the bottom end of second filler unit is connected to the top of the lower gasket ring,
Wherein, first filler unit, the sealing ring and second filler unit are arranged in the ring-shaped cavity.
2. the packing seal structure of oil thermal recovery shut-off valve according to claim 1, which is characterized in that the gland
It is equipped with ring flange, the gland is connected to the top of the stuffing-box by ring flange.
3. the packing seal structure of oil thermal recovery shut-off valve according to claim 1, which is characterized in that the upper gasket ring and
The lower gasket ring includes the 2 nitrile rubber gaskets to fit together.
4. the packing seal structure of oil thermal recovery shut-off valve according to claim 1, which is characterized in that first filler
Unit is carbon fibre packing material.
5. the packing seal structure of oil thermal recovery shut-off valve according to claim 1 or 4, which is characterized in that described second
Filler unit is ceramic fibre disk root timber matter.
6. the packing seal structure of oil thermal recovery shut-off valve according to claim 1, which is characterized in that the sealing ring is
VITON fluorine element rubber seal.
7. the packing seal structure of oil thermal recovery shut-off valve according to claim 1, which is characterized in that on the valve rod also
It is arranged with valve lever bushing layer, the material of the valve lever bushing layer is polytetrafluoroethylene (PTFE).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820847374.0U CN208348654U (en) | 2018-06-03 | 2018-06-03 | The packing seal structure of oil thermal recovery shut-off valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820847374.0U CN208348654U (en) | 2018-06-03 | 2018-06-03 | The packing seal structure of oil thermal recovery shut-off valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208348654U true CN208348654U (en) | 2019-01-08 |
Family
ID=64891666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820847374.0U Expired - Fee Related CN208348654U (en) | 2018-06-03 | 2018-06-03 | The packing seal structure of oil thermal recovery shut-off valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208348654U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117570236A (en) * | 2024-01-19 | 2024-02-20 | 成都成高阀门股份有限公司 | Guide structure for valve |
-
2018
- 2018-06-03 CN CN201820847374.0U patent/CN208348654U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117570236A (en) * | 2024-01-19 | 2024-02-20 | 成都成高阀门股份有限公司 | Guide structure for valve |
| CN117570236B (en) * | 2024-01-19 | 2024-03-19 | 成都成高阀门股份有限公司 | Guide structure for valve |
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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: 20190108 |