CN108223899A - A kind of valve rod angle floating sealing structure - Google Patents
A kind of valve rod angle floating sealing structure Download PDFInfo
- Publication number
- CN108223899A CN108223899A CN201810032567.5A CN201810032567A CN108223899A CN 108223899 A CN108223899 A CN 108223899A CN 201810032567 A CN201810032567 A CN 201810032567A CN 108223899 A CN108223899 A CN 108223899A
- Authority
- CN
- China
- Prior art keywords
- stuffing box
- sealing
- valve rod
- seal
- connect
- 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.)
- Pending
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 70
- 238000007667 floating Methods 0.000 title claims abstract description 18
- 210000004907 gland Anatomy 0.000 claims abstract description 9
- 239000000945 filler Substances 0.000 abstract description 17
- 238000005452 bending Methods 0.000 abstract description 4
- 230000006835 compression Effects 0.000 abstract description 4
- 238000007906 compression Methods 0.000 abstract description 4
- 238000012856 packing Methods 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 9
- 230000006378 damage Effects 0.000 description 4
- 208000033641 Ring chromosome 5 syndrome Diseases 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 208000035480 Ring chromosome 8 syndrome Diseases 0.000 description 1
- 208000032827 Ring chromosome 9 syndrome Diseases 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K41/00—Spindle sealings
- F16K41/02—Spindle sealings with stuffing-box ; Sealing rings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
Abstract
The invention discloses a kind of valve rod angle floating sealing structures, the seal ring seat bottom is connect with gasket, sealed bolster plate is equipped with below the gasket, lower stuffing box is equipped in the seal ring seat, seal box is equipped with above the lower stuffing box, it is connect at left and right sides of the lower stuffing box with sealing ring, the sealing ring is connect with spring, the spring is connect with seal ring seat, sealing plate is equipped with above the sealing ring, the sealing plate is connect with upper stuffing box, sealing ring is equipped between the sealing plate and upper stuffing box, the upper stuffing box is connect with gland, the present invention is when flashboard presses to sealing surface of seat, seal box can follow valve rod to move, so valve rod not power by bending, valve rod reduces the compression of filling container simultaneously, both it had been conducive to flashboard translation in this way and has closed valve, packing seal can be protected again, extend the service life of filler.
Description
Technical field
The present invention relates to a kind of valve rod angle floating sealing structures, belong to the technical field of ram seal.
Background technology
For the gate valve that valve rod moves reciprocatingly, at valve rod because the external leakage that movement generates be valve it is main due to
Barrier form, the gate valve especially to work in environment is just asked, such as the hot-blast valve of blast furnace, chimney valve and mixer selector valve, in order to protect
Demonstrate,prove flashboard will not hand high temperature deformation and valve seat it is stuck, generally employ the method for increasing flashboard and valve seat gap, such flashboard exists
During pressing to valve seat, flashboard needs to translate a certain distance or rotates a low-angle around valve stem seal seat, thus
Increase the destruction to valve stem seal.
Common valve stem seal is compressed sealing, is filled out using oil immersion cotton dish structure, this general customary filler gland of sealing structure
Several oil immersion cotton packing is set in material seat, it is intermediate that lubricating oil is added in by oil ring, play a part of to lubricate valve rod and sealing, this knot
The sealing device of structure valve rod when flashboard occurs cheap cannot translate therewith, but compresses side airtight and watertight padding to bear valve rod curved
Qu Zuoyong, valve stem seal are easily damaged, and excessively compress filler again by the effect of image ram seal, therefore this structure
Valve rod sealing device is typically employed in that medium temperature is not high, and in the little valve of flashboard temperature change, and the high valve of temperature is then adopted
Use floating sealing structure.
Floating seal device for valve rod refer to flashboard during sealing surface of seat is pressed to sealing ring relative to seal receptacle
It is mobile, reduce destruction of the stem movement to airtight and watertight padding, gap is designed between upper filler and lower filler, thus form complete floating
Dynamic, so when flashboard presses to sealing surface of seat, seal box can follow valve rod to move, so valve rod not power, while valve by bending
Bar reduces the compression of filling container, had not only been conducive to flashboard translation in this way and has closed valve, but also can protect packing seal, and had extended filler
Service life.
Invention content
Goal of the invention：The valve rod of being solved of the invention is damaged.Filler is damaged technical problem, and the present invention provides a kind of valve rod angle
Floating sealing structure.
Process program：A kind of valve rod angle floating sealing structure, including gasket, spring, seal ring seat, sealing plate, sealing
Circle, gland, upper stuffing box, support oil ring, sealing ring, lower stuffing box, sealed bolster plate, seal box, the seal ring seat bottom
Portion is connect with gasket, and sealed bolster plate is equipped with below the gasket, lower stuffing box is equipped in the seal ring seat, is filled out under described
Seal box is equipped with above hopper, is connect at left and right sides of the lower stuffing box with sealing ring, the sealing ring is connect with spring, described
Spring is connect with seal ring seat, and sealing plate is equipped with above the sealing ring, and the sealing plate is connect with upper stuffing box, the sealing
Sealing ring is equipped between plate and upper stuffing box, the upper stuffing box is connect with gland.
It is preferable over, the lower stuffing box is equipped with 3 altogether, and gap is equipped between the lower stuffing box and lower stuffing box.
It is preferable over, the seal box is equipped with 2 altogether.
It is preferable over, support oil ring is equipped between the lower stuffing box and seal box.
It is preferable over, the upper stuffing box is equipped with 3 altogether, and gap is equipped between the upper stuffing box and upper stuffing box.
Sealing ring of the present invention subtracts each other destruction of the small valve-rod movement to airtight and watertight padding, and sky is designed between upper filler and lower filler
Gap, thus full floating is formed, so when flashboard presses to sealing surface of seat, seal box can follow valve rod to move, so valve rod is not
Power by bending, while valve rod reduces the compression of filling container, had not only been conducive to flashboard translation in this way and has closed valve, but also can protect filler
Sealing extends the service life of filler.
Description of the drawings
Fig. 1 is a kind of structure diagram of valve rod angle floating sealing structure of the present embodiment；
In figure：Gasket -1, spring -2, seal ring seat -3, sealing plate -4, sealing ring -5, gland -6, upper filler
Case -7, support oil ring -8, sealing ring -9, lower stuffing box -10, sealed bolster plate -11, seal box -12.
Specific embodiment
Below in conjunction with attached drawing and pass through specific embodiment the present invention be further elaborated, it should be pointed out that：For this technique
For the common process personnel in field, without departing from the principle of the present invention, to repairing for various equivalent forms of the invention
Change and fall within the application range as defined in the appended claims.
Embodiment 1：
As shown in Figure 1：A kind of valve rod angle floating sealing structure, including gasket 1, spring 2, seal ring seat 3, sealing plate 4,
Sealing ring 5, gland 6, upper stuffing box 7, support oil ring 8, sealing ring 9, lower stuffing box 10, sealed bolster plate 11, seal box 12,
3 bottom of seal ring seat is connect with gasket 1, and 1 lower section of the gasket is equipped with sealed bolster plate 11, in the seal ring seat 3
Equipped with lower stuffing box 10, the lower stuffing box 10 is equipped with 3 altogether, and sky is equipped between the lower stuffing box 10 and lower stuffing box 10
Gap, lower 10 top of stuffing box are equipped with seal box 12, and the lower filler is equipped with support oil ring 8, institute between 10 and seal box 12
It states seal box 12 and is equipped with 2 altogether, lower 10 left and right sides of stuffing box is connect with sealing ring 9, and the sealing ring 9 connects with spring 2
It connects, the spring 2 is connect with seal ring seat 3, and 9 top of sealing ring is equipped with sealing plate 4, the sealing plate 4 and upper stuffing box
1 connection, the upper stuffing box 1 are equipped with 3 altogether, and gap, the sealing plate 4 are equipped between the upper stuffing box 1 and upper stuffing box 1
Sealing ring 5 is equipped between upper stuffing box 7, the upper stuffing box 7 is connect with gland 6.
It is preferable over, support oil ring is equipped between the lower stuffing box and seal box.
Sealing ring of the present invention subtracts each other destruction of the small valve-rod movement to airtight and watertight padding, and sky is designed between upper filler and lower filler
Gap, thus full floating is formed, so when flashboard presses to sealing surface of seat, seal box can follow valve rod to move, so valve rod is not
Power by bending, while valve rod reduces the compression of filling container, had not only been conducive to flashboard translation in this way and has closed valve, but also can protect filler
Sealing extends the service life of filler.
Claims (5)
1. a kind of valve rod angle floating sealing structure, which is characterized in that including gasket, spring, seal ring seat, sealing plate, sealing
Circle, gland, upper stuffing box, support oil ring, sealing ring, lower stuffing box, sealed bolster plate, the seal ring seat bottom and sealing
Pad connects, and sealed bolster plate is equipped with below the gasket, and lower stuffing box, the lower stuffing box top are equipped in the seal ring seat
Equipped with seal box, connect at left and right sides of the lower stuffing box with sealing ring, the sealing ring is connect with spring, the spring with it is close
Seal ring seat connects, and sealing plate is equipped with above the sealing ring, and the sealing plate is connect with upper stuffing box, and the sealing plate is with above filling out
Sealing ring is equipped between hopper, the upper stuffing box is connect with gland.
2. a kind of valve rod angle floating sealing structure according to claim 1, which is characterized in that the lower stuffing box is equipped with 3 altogether
It is a, gap is equipped between the lower stuffing box and lower stuffing box.
3. a kind of valve rod angle floating sealing structure according to claim 1, which is characterized in that the seal box is equipped with 2 altogether.
4. a kind of valve rod angle floating sealing structure according to claim 1, which is characterized in that the lower stuffing box and seal box
Between be equipped with support oil ring.
5. a kind of valve rod angle floating sealing structure according to claim 1, which is characterized in that the upper stuffing box is equipped with 3 altogether
It is a, gap is equipped between the upper stuffing box and upper stuffing box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810032567.5A CN108223899A (en) | 2018-01-12 | 2018-01-12 | A kind of valve rod angle floating sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810032567.5A CN108223899A (en) | 2018-01-12 | 2018-01-12 | A kind of valve rod angle floating sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108223899A true CN108223899A (en) | 2018-06-29 |
Family
ID=62640392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810032567.5A Pending CN108223899A (en) | 2018-01-12 | 2018-01-12 | A kind of valve rod angle floating sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108223899A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3801112A (en) * | 1970-05-13 | 1974-04-02 | Ethylene Plastique Sa | Gland packings |
| CN201575163U (en) * | 2010-01-05 | 2010-09-08 | 宁波科宁达工业有限公司 | Pneumatic baffle valve |
| CN202451958U (en) * | 2011-12-30 | 2012-09-26 | 苏州德兰能源科技有限公司 | Filler pre-tightening mechanism of valve |
| CN202597883U (en) * | 2012-04-19 | 2012-12-12 | 自贡高中压阀门厂 | Improved packing structure for main water inlet valve of water turbine |
| CN202812440U (en) * | 2012-06-21 | 2013-03-20 | 镇江市铸造阀门厂有限公司 | Valve rod multiple sealing device for ultralow temperature and special valves |
| CN103998840A (en) * | 2011-10-27 | 2014-08-20 | 艾吉斯流量技术有限责任公司 | Valve and Stem Seal Assemblies |
| CN206626181U (en) * | 2017-03-24 | 2017-11-10 | 青岛航保机电设备有限公司 | The safe mechanically-sealing apparatus of rotating |
-
2018
- 2018-01-12 CN CN201810032567.5A patent/CN108223899A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3801112A (en) * | 1970-05-13 | 1974-04-02 | Ethylene Plastique Sa | Gland packings |
| CN201575163U (en) * | 2010-01-05 | 2010-09-08 | 宁波科宁达工业有限公司 | Pneumatic baffle valve |
| CN103998840A (en) * | 2011-10-27 | 2014-08-20 | 艾吉斯流量技术有限责任公司 | Valve and Stem Seal Assemblies |
| CN202451958U (en) * | 2011-12-30 | 2012-09-26 | 苏州德兰能源科技有限公司 | Filler pre-tightening mechanism of valve |
| CN202597883U (en) * | 2012-04-19 | 2012-12-12 | 自贡高中压阀门厂 | Improved packing structure for main water inlet valve of water turbine |
| CN202812440U (en) * | 2012-06-21 | 2013-03-20 | 镇江市铸造阀门厂有限公司 | Valve rod multiple sealing device for ultralow temperature and special valves |
| CN206626181U (en) * | 2017-03-24 | 2017-11-10 | 青岛航保机电设备有限公司 | The safe mechanically-sealing apparatus of rotating |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180629 |