CN203286117U - Valve packing sealing device - Google Patents
Valve packing sealing device Download PDFInfo
- Publication number
- CN203286117U CN203286117U CN2013202849409U CN201320284940U CN203286117U CN 203286117 U CN203286117 U CN 203286117U CN 2013202849409 U CN2013202849409 U CN 2013202849409U CN 201320284940 U CN201320284940 U CN 201320284940U CN 203286117 U CN203286117 U CN 203286117U
- Authority
- CN
- China
- Prior art keywords
- packing
- valve
- seal
- seal device
- graphite
- 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
Links
- 238000012856 packing Methods 0.000 title claims abstract description 71
- 238000007789 sealing Methods 0.000 title claims abstract description 22
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000010439 graphite Substances 0.000 claims abstract description 22
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 22
- 239000000945 filler Substances 0.000 claims description 17
- 210000004907 gland Anatomy 0.000 claims description 16
- 239000004696 Poly ether ether ketone Substances 0.000 claims description 6
- 229920002530 polyetherether ketone Polymers 0.000 claims description 6
- JUPQTSLXMOCDHR-UHFFFAOYSA-N benzene-1,4-diol;bis(4-fluorophenyl)methanone Chemical compound OC1=CC=C(O)C=C1.C1=CC(F)=CC=C1C(=O)C1=CC=C(F)C=C1 JUPQTSLXMOCDHR-UHFFFAOYSA-N 0.000 claims description 5
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000006835 compression Effects 0.000 abstract 8
- 238000007906 compression Methods 0.000 abstract 8
- 238000004079 fireproofing Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- 239000004809 Teflon Substances 0.000 description 2
- 229920006362 Teflon® Polymers 0.000 description 2
- 239000010425 asbestos Substances 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 229910052895 riebeckite Inorganic materials 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 230000000246 remedial effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
Landscapes
- Sealing Devices (AREA)
Abstract
The utility model provides a valve packing sealing device. The sealing device comprises a valve body, a valve rod, packing, packing compression rings and compression nuts, wherein the valve rod is sleeved in the valve body; the packing is arranged in the valve body; the packing compression rings are arranged above the packing; the compression nuts are arranged on the packing compression rings, are fixed on the valve rod and compress the packing compression rings; the packing is graphite packing; sealing compression rings are arranged below the graphite packing; and self-sealing structures are also arranged below the sealing compression rings. The sealing device has the beneficial effects that the sealability of the valve packing sealing device is improved by adopting double sealing effects of the graphite packing and self-sealing structures; and the graphite packing also has a fireproofing function.
Description
Technical field
The utility model relates to field of sealing technology, refers to especially a kind of valve packing seal device.
Background technique
Valve packing seal device is usually used in valve the gland seal device that rotates or slide, and it is by stopping up fluid passage with elastoplastic material or original paper with elastic structure between axle and housing, prevents that medium from revealing to the external world from the relative movement position.
elastoplastic material in valve packing seal device is filler, in market, material category as filler has a variety of, as PVC＝polyvinyl chloride, the graphite asbestos, asbestos copper wire etc., belong to the material that directly contacts with axle due to filler, along with continuous use, just there will be wearing and tearing and cause sealing effect to descend, the problem of leaking appears finally, therefore, the sealing effect that people can take some remedial measures to slow down and bring because of wearing and tearing reduces, such as when locking Gland, apply certain pre-pressing pressure, discharge gradually pressure along with wearing and tearing and carry out compensate for losses, reach the purpose that postpones working life, although this method is easy, but act on limited, the life-span that extends is not long, on the other hand, difference due to filler, and the intensity of sealing, general stuffing seal all can't meet the frpf requirement, using scope is limited.
The model utility content
The utility model proposes a kind of valve packing seal device, solved in prior art valve packing seal device short working life, the problem that using scope is limited.
The technical solution of the utility model is achieved in that a kind of valve packing seal device, comprise valve body and the valve rod that is sheathed in described valve body, be located at the filler in described valve body, be located at the packing press ring of described filler top, and be located at gland nut on described packing press ring, and described gland nut is fixed on described valve rod and compresses described packing press ring, and described filler is graphite packing, described graphite packing below is provided with seal joint, and described seal joint below also is provided with self sealing structure.
Further, described self sealing structure comprises that two cross sections staggered relatively are the seal ring of triangle or trapezoidal or V-type, and the hypotenuse of two seal rings is isometric and join, and preferred, described seal ring is the PTFE(teflon) seal ring.
Further, be provided with wear-resistant pad between described graphite packing and described packing press ring, described wear-resistant pad is the PEEK(polyether-ether-ketone resin) pad.
Further, be provided with elastic element between described packing press ring and described gland nut, by described elastic element stored energy, thereby in using process afterwards, release energy gradually to make up the wearing and tearing of described filler, extend the working life of described stuffing seal.
Further, described elastic element is the dish-type spring, and according to different demands or design, described elastic element also can be spring sheet or other structures.
Further, also be provided with retaining sheet on described gland nut, described retaining sheet can make described gland nut be in tightening state.
The beneficial effects of the utility model are: the utility model passes through to add described graphite packing in described valve body, and is located at self-seal device below described graphite packing, reaches the effect that improves sealing effect; , because graphite has resistant to elevated temperatures characteristic, therefore can meet the frpf requirement, thereby have the frpf function.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, below will the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is an embodiment's of a kind of valve packing seal device of the utility model cross-sectional view.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technological scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiments.Based on the embodiment in the utility model, those of ordinary skills are not making under the creative work prerequisite the every other embodiment who obtains, and all belong to the scope of the utility model protection.
As shown in Figure 1, a kind of valve packing seal device, comprise valve body 1 and the valve rod that is sheathed in valve body 1, be located at the filler 2 in valve body 1, be located at the packing press ring 3 of filler 2 tops, and be located at the gland nut 4 on packing press ring 3, gland nut 4 is fixed on valve rod and compresses packing press ring 3, filler 2 is graphite packing, and the below of graphite packing also is provided with self sealing structure.
Further, self sealing structure comprises that two cross sections staggered relatively are the seal ring 6 of triangle or trapezoidal or V-type, the hypotenuse of two seal rings 6 is isometric and join, what the wedge-type seal pad 6 in the present embodiment adopted is the PTFE(teflon) pad, the structure of seal ring has multiple, can select according to different needs, simultaneously, also very extensive about the selection range of the material of seal ring.
Further, be provided with wear-resistant pad 7 between graphite packing 2 and packing press ring 3, wear-resistant pad 7 is the PEEK pad, by described wear-resistant pad, described graphite packing is separated with described packing press ring, when described packing press ring rotates, can not cause wearing and tearing to described filler, thereby extended the working life of described filler, and made described stuffing seal can be fit to the situation that described packing press ring rotates with valve; And the material with high hardness and high wear resistance is selected in choosing of described wear-resistant pad, and the PEEK pad can meet this generic request, can certainly select other satisfactory materials, such as employing contains rubber wiry, polyacrylate etc.
Further, be provided with elastic element 8 between packing press ring 3 and gland nut 4, by elastic element 8 stored energys, thereby in using process afterwards, release energy gradually to make up the wearing and tearing of filler 2, extend the working life of stuffing seal.
Further, elastic element 8 is the dish-type spring, and according to different demands or design, elastic element 8 also can be spring sheet or other structures.
Further, also be provided with retaining sheet 9 on gland nut 4.
we in use, only need 4 pairs of graphite packings 2 of gland nut and elastic element 8 are compressed, so in use, wearing and tearing along with graphite packing 2, elastic element 8 can give off energy to make up gradually, and the wear-resistant pad 7 in this valve packing seal device, can reduce the wearing and tearing of graphite packing 2, graphite packing 2 and packing press ring are separated, and wear-resistant pad 7 is the PEEK pad, have wear-resisting, high temperature resistant, fire-retardant texts, self sealing structure in the bottom of this valve packing seal device, can improve the anti-leak performance of whole valve packing seal device, therefore, this valve packing seal device anti-leak performance is excellent, long service life, and can reach the frpf requirement.
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 modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (9)
1. valve packing seal device, comprise valve body and the valve rod that is sheathed in described valve body, be located at the filler in described valve body, be located at the packing press ring of described filler top, and be located at gland nut on described packing press ring, described gland nut is fixed on described valve rod and compresses described packing press ring, it is characterized in that: described filler is graphite packing, described graphite packing below is provided with seal joint, and described seal joint below also is provided with self sealing structure.
2. valve packing seal device described in claim 1, it is characterized in that: described self sealing structure comprises that two cross sections staggered relatively are the seal ring of triangle or trapezoidal or V-type, the hypotenuse of two seal rings is isometric and join.
3. valve packing seal device described in claim 2, it is characterized in that: described seal ring is the PTFE seal ring.
4. valve packing seal device described in claim 1, is characterized in that: be provided with wear-resistant pad between described graphite packing and described packing press ring.
5. valve packing seal device described in claim 4, it is characterized in that: described wear-resistant pad is the PEEK pad.
6. valve packing seal device described in claim 1, is characterized in that: be provided with elastic element between described packing press ring and described gland nut.
7. stuffing seal described in claim 6, it is characterized in that: described elastic element is the dish-type spring.
8. valve packing seal device described in claim 6, it is characterized in that: described elastic element is spring sheet.
9. valve packing seal device described in claim 1, it is characterized in that: described gland nut is provided with retaining sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202849409U CN203286117U (en) | 2013-05-22 | 2013-05-22 | Valve packing sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202849409U CN203286117U (en) | 2013-05-22 | 2013-05-22 | Valve packing sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203286117U true CN203286117U (en) | 2013-11-13 |
Family
ID=49542479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202849409U Expired - Lifetime CN203286117U (en) | 2013-05-22 | 2013-05-22 | Valve packing sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203286117U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105972306A (en) * | 2016-06-02 | 2016-09-28 | 天津大学 | Zero-leakage type valve rod sealing structure |
| CN115492982A (en) * | 2022-10-19 | 2022-12-20 | 上海凯研机械设备有限公司 | Fire prevention type remote operation mechanism |
-
2013
- 2013-05-22 CN CN2013202849409U patent/CN203286117U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105972306A (en) * | 2016-06-02 | 2016-09-28 | 天津大学 | Zero-leakage type valve rod sealing structure |
| CN105972306B (en) * | 2016-06-02 | 2018-05-04 | 天津大学 | A kind of zero-leakage type valve rod leak-proof structure |
| CN115492982A (en) * | 2022-10-19 | 2022-12-20 | 上海凯研机械设备有限公司 | Fire prevention type remote operation mechanism |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131113 |