CN201902680U - Stuffing sealing device for valve - Google Patents
Stuffing sealing device for valve Download PDFInfo
- Publication number
- CN201902680U CN201902680U CN2010206809021U CN201020680902U CN201902680U CN 201902680 U CN201902680 U CN 201902680U CN 2010206809021 U CN2010206809021 U CN 2010206809021U CN 201020680902 U CN201020680902 U CN 201020680902U CN 201902680 U CN201902680 U CN 201902680U
- Authority
- CN
- China
- Prior art keywords
- sealing seat
- valve
- stuffing box
- seal arrangement
- packing seal
- 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
- 238000007789 sealing Methods 0.000 title claims abstract description 77
- 238000007667 floating Methods 0.000 claims abstract description 44
- 210000004907 gland Anatomy 0.000 claims abstract description 12
- 238000012856 packing Methods 0.000 claims description 35
- 239000000945 filler Substances 0.000 claims description 19
- 238000003032 molecular docking Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 7
- 238000012423 maintenance Methods 0.000 abstract description 6
- 238000009434 installation Methods 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 description 3
- 238000013016 damping Methods 0.000 description 2
- 230000006837 decompression Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
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- Sealing Devices (AREA)
Abstract
The utility model discloses a stuffing sealing device for a valve. The stuffing sealing device comprises a sealing base, a stuffing box and a stuffing gland, wherein a floating ring sheathed on a valve rod is arranged at the lower part of an inner cavity of the sealing base, the stuffing box is arranged at the upper part of the cavity of the sealing base, the stuffing box is filled with stuffing, the stuffing gland compacts the stuffing, the sealing base is formed through the combination of two half structures, and the stuffing box is also formed through the combination of two half structures. The novel angle floating sealing device has a simple structure, facilitates installation and replacement of the floating ring and sealing stuffing, greatly facilitates maintenance and overhaul of equipment, and has good sealing effect.
Description
Technical field
The utility model belongs to field of sealing technology, is specifically related to a kind of valve packing seal arrangement that is applied on pipeline hot-blast valve, the perpendicular type gate valve.
Background technique
Valve is an imperative equipment in the pipeline.The sealing configuration at valve packing place generally comprises sealing seat, Stuffing box and Gland, the bottom of described sealing seat inner chamber is provided with the floating ring that is set on the valve rod, described Stuffing box is located at the top of described sealing seat inner chamber, in the described Stuffing box filler is set, described Gland is pressed on the described filler.It is the problem that often occurs during valve uses that stem packing place of valve is leaked, so the device maintenance personnel need often to change stuffing box packing.Because the agent structure of existing sealing seat, Stuffing box is the cylindric of one, when changing filler or floating ring, sealing seat, Stuffing box Gland and outside component thereof all need be disassembled one by one just and can carry out, thereby restricted the speed of changing filler, prolonged the required time of changing.How can change filler quickly and efficiently, to guarantee that valve rod does not have leakage, be problem demanding prompt solution.
The model utility content
Technical problem to be solved in the utility model provides a kind of valve packing seal arrangement that makes things convenient for stuffing box packing to install, change, shorten greatly engineering time and saving maintenance expenses.
In order to solve the problems of the technologies described above, the utility model has adopted following technological scheme: a kind of valve packing seal arrangement, comprise sealing seat, Stuffing box and Gland, the bottom of described sealing seat inner chamber is provided with the floating ring that is set on the valve rod, described Stuffing box is located at the top of described sealing seat inner chamber, in the described Stuffing box filler is set, and described Gland is pressed on the described filler, wherein, described sealing seat is formed by two halfbody textural associations; Described Stuffing box is formed by two halfbody textural associations.
As preferably, two halfbody structures of described sealing seat are about the middle vertical plane symmetry of described sealing seat; Two halfbody structures of described Stuffing box are about the middle vertical plane symmetry of described Stuffing box.
As preferably, be respectively equipped with a pair of lug on two halfbody structures of described sealing seat, connect by fastening piece between the described lug that is docking together respectively.
As preferably, on the periphery of two halfbody structures of described Stuffing box all correspondence offer at least one first annular groove, be embedded in described first annular groove and be used for circlip or spring that two described halfbody structures are tightened together.
As preferably, offer corresponding second annular groove of quantity of quantity and described floating ring on the inwall of described sealing seat bottom, described floating ring is located in described second annular groove, and can radially float along with moving radially in described second annular groove of described valve rod.
As preferably, the internal diameter of described second annular groove is greater than the external diameter of described floating ring.
As preferably, the top of described sealing seat outside is provided with first flange, and described Stuffing box outside is provided with second flange, and described first flange is connected by fastening piece with second flange.
As preferably, the outside lower end of described sealing seat is provided with cylndrical surface and the lower end surface that the counterbore at the valve rod hole place on the valve gap with described valve cooperates, the bottom of described sealing seat outside is provided with the 3rd flange, and described sealing seat can be connected with the valve gap of described valve by described the 3rd flange.
As preferably, described floating ring is the annulus that is spliced by a plurality of ring section head and the tail, offer the 3rd annular groove on the excircle of the described floating ring that is spliced by a plurality of ring section head and the tail, be embedded with in described the 3rd annular groove and be used for a plurality of rings section fastening spring that is stitched together.
As preferably, the end face of described ring section is all tangent with the inner cylindrical surface of described floating ring.
Compared with prior art, the beneficial effects of the utility model are:
1, because sealing seat and Stuffing box in the valve packing seal arrangement of the present utility model all adopt split-type structural, therefore the installation and the replacing of filler in the Stuffing box have been made things convenient for, shortened engineering time greatly, saved maintenance expenses, thereby brought great convenience also for plant maintenance and maintenance.
2, the floating ring in the valve packing seal arrangement of the present utility model structure is set and set-up mode has effectively guaranteed sealing effect.
Description of drawings
Fig. 1 is the plan structure schematic representation of valve packing seal arrangement of the present utility model.
Fig. 2 is that the A-A of Fig. 1 is to sectional drawing.
Fig. 3 is the perspective view of the halfbody structure of the sealing seat in the valve packing seal arrangement of the present utility model.
Fig. 4 is the perspective view of the halfbody structure of the Stuffing box in the valve packing seal arrangement of the present utility model.
The perspective view that Fig. 5 combines for the halfbody structure of the halfbody structure of the sealing seat in the valve packing seal arrangement of the present utility model and Stuffing box.
Fig. 6 is the structural representation of the floating ring in the valve packing seal arrangement of the present utility model.
Fig. 7 is the user mode sectional view of valve packing seal arrangement of the present utility model.
Fig. 8 is the enlarged view of C part among Fig. 7.
The sectional view of another direction of the user mode of Fig. 9 valve packing seal arrangement of the present utility model.
Description of symbols
1-sealing seat 2-floating ring
3-first spring 4-" O " RunddichtringO
5-Stuffing box 6-second spring
7-filler 8-Gland
The 9-first fastening piece 10-second fastening piece
11-the 3rd fastening piece 12-the 4th fastening piece
13-oil supply port 14-metal o-ring
15-sealing seat inner chamber 18-lug
The 19-first annular groove 20-second annular groove
21-ring section 22-end face
23-the 3rd annular groove 24-first flange
The 25-second flange 26-valve gap
27-valve rod 28-cylndrical surface
29-the 3rd flange
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail, but not as to qualification of the present utility model.
Fig. 1 is the plan structure schematic representation of valve packing seal arrangement of the present utility model.Fig. 2 is that the A-A of Fig. 1 is to sectional drawing.As depicted in figs. 1 and 2, valve packing seal arrangement of the present utility model, comprise sealing seat 1, Stuffing box 5 and Gland 8, the bottom of the inner chamber of sealing seat 1 is provided with the floating ring 2 on the valve rod that will be set in valve under user mode, Stuffing box 5 is located at the top of the inner chamber of sealing seat 1, filler 7 is set in the Stuffing box 5, and the top of filler 7 is provided for filler 7 is pressed on Gland 8 in the Stuffing box 5.Gland 8 is fixed on the Stuffing box 5 by the 4th fastening piece 12, and can adjust the tightness degree of filler 7 in Stuffing box 5 by the 4th fastening piece 12.The 4th fastening piece 12 in the present embodiment adopts the combination of bolt, nut and pad, regulates the screw-in of bolt or screws out the tightness degree that just can adjust filler 7.
Fig. 3 is the perspective view of the halfbody structure of the sealing seat in the valve packing seal arrangement of the present utility model.Fig. 4 is the perspective view of the halfbody structure of the Stuffing box in the valve packing seal arrangement of the present utility model.The perspective view that Fig. 5 combines for the halfbody structure of the halfbody structure of the sealing seat in the valve packing seal arrangement of the present utility model and Stuffing box.To shown in Figure 5, sealing seat 1 is formed by two halfbody textural associations as shown in Figure 3 as Fig. 3, and Stuffing box 5 is formed by two halfbody textural associations as shown in Figure 4.Promptly change the structure of integral type in original technology.
As shown in Figure 3, this halfbody structure of sealing seat 1 has made things convenient for the installation and the replacing of floating ring 2.As a kind of preferred version of the present utility model, two halfbody structures of sealing seat 1 are about the middle vertical plane symmetry of sealing seat 1, and two such halfbody structures make the easier for installation of floating ring 2, and the manufacturing of himself is also convenient.As shown in Figure 1, two halfbody structures of sealing seat 1 can adopt first fastening piece 9 to connect, and can further locate (not shown) with pin.First fastening piece 9 in the present embodiment is the combination of bolt, nut and pad.For two detachable tightening together of halfbody structure are formed sealing seat 1, present embodiment has adopted such structure: as shown in Figure 1, be respectively equipped with a pair of lug 18 on two halfbody structures of sealing seat 1, connect by first fastening piece 9 between the lug 18 that is docking together respectively.
As shown in Figure 4, the structure of this split type Stuffing box 5 makes things convenient for the installation and the replacing of filler 7.As a kind of preferred version of the present utility model, for the convenience of processing and assembling, two halfbody structures of Stuffing box 5 are about the middle vertical plane symmetry of Stuffing box 5.For two detachable tightening together of halfbody structure are formed Stuffing box 5, present embodiment has adopted such structure: on the periphery of two halfbody structures of Stuffing box 5 all correspondence offer to be embedded at least one first annular groove, 19, the first annular groove 19 and be used for circlip or spring that two described halfbody structures are tightened together.Promptly the periphery of two halfbody structures that form Stuffing box 5 around being stitched together offers at least one first annular groove 19.First annular groove 19 offer quantity, quantity is set can determines as required of circlip or spring just, if when Stuffing box 5 is big than the length and width degree then need the quantity of first annular groove 19 that is provided with then more, otherwise then less.The quantity of first annular groove 19 is 2 in the present embodiment.As shown in Figure 2, be used in the present embodiment two described halfbody structures are tightened together that what adopt is first spring 3.Certainly, also can adopt other modes that two described halfbody structures are tightened together, as long as can reach for convenience detach and fastening effect firmly.
As shown in Figure 6, floating ring 2 is the annulus that are spliced by a plurality of ring section 21 head and the tail, offer on the excircle by a plurality of rings section floating ring 2 that 21 endings are spliced to be embedded with in the 3rd annular groove 23, the three annular grooves 23 and be used for a plurality of rings section 21 fastening second springs 6 that are stitched together.Certainly, also can adopt other modes that a plurality of ring sections 21 are tightened together, for example wear and its gathering can be the circular elastic member that can it be extended out again in a plurality of ring sections 21 inside.
As a kind of preferred version of present embodiment, the end face 22 of a plurality of ring sections 21 is all tangent with the inner cylindrical surface of floating ring 2.Just floating ring 2 tangentially is divided into a plurality of ring sections 21, and then a plurality of ring sections 21 are tightened together.Ring section 21 in the present embodiment is three altogether, can certainly be for more than four.This ring segment structure of floating ring 2 be convenient to the assembling, simultaneously, gas easily from radial direction to external leakage, tangentially dissecing does not influence sealability.
As Fig. 2, Fig. 3 and shown in Figure 5, because sealing seat 1 adopts two halfbody textural associations to form, so floating ring 2 is just very convenient in the setting of the bottom of the cavity 15 of sealing seat 1.In order to reach better sealing effect.Offer corresponding second annular groove 20 of quantity of quantity and floating ring 2 on the inwall of the bottom of sealing seat 1 inner chamber 15, floating ring 2 is located in second annular groove 20, and can radially float along with moving radially in second annular groove 20 of valve rod.As a kind of preferred version of present embodiment, the internal diameter of second annular groove 20 is greater than the external diameter of floating ring 2.Rather than as directly floating ring 2 being arranged in the bottom of sealing seat inner chamber 15 in the prior art, in order to play better sealing effect, the utility model preferably adopts a plurality of floating rings 2 is set in sealing seat 1, forms the floating ring group.Each floating ring 2 is separately positioned in one second annular groove 20.A plurality of second annular grooves 20 have formed the labyrinth form, thereby have increased sealing.Floating ring 2 in the present embodiment is three, and corresponding, second annular groove 20 also is three.
To shown in Figure 5, the top of the outside of sealing seat 1 is provided with first method 24 as Fig. 2, and Stuffing box 5 outsides are provided with second flange, 25, the first flanges 24 and are connected by second fastening piece 10 with second flange 25.Thereby Stuffing box 5 and sealing seat 1 are linked together.
In order to guarantee that further valve packing seal arrangement of the present utility model has good sealing effect, fillet, oblique angle or right angle have been led in the bottom of Stuffing box 5, and the O RunddichtringO 4 that is positioned on right angle, fillet or the oblique angle is set between Stuffing box 5 and sealing seat 1.Shown in the present embodiment for to have led the right angle in the bottom of Stuffing box 5, O RunddichtringO 4 is arranged in the right angle.
In order to guarantee the lubricated of the utility model angle floating seal, 1-2 oil supply port 13 or lubricating cup are set on the sealing seat between two floating rings 21.
Fig. 7 is the user mode sectional view of valve packing seal arrangement of the present utility model.Fig. 8 is the enlarged view of C part among Fig. 7.The sectional view of another direction of the user mode of Fig. 9 valve packing seal arrangement of the present utility model.As Fig. 7, Fig. 8 and shown in Figure 9, sealing seat 1 outside lower end is provided with cylndrical surface 28 and the lower end surface that the counterbore at the place, valve rod 27 holes on the valve gap 26 with valve cooperates, metal o-ring or temperature resistant rubber pad 14 are set between the lower end surface of sealing seat 1 and the counterbore of valve gap, and bonding with high-temperature plastic.The bottom of sealing seat 1 outside is provided with the 3rd flange 29, and sealing seat 1 can be connected by the 3rd fastening piece 11 with the valve gap 26 of valve by the 3rd flange 29.
In use, floating ring 2 is held valve rod 27 all the time tightly, and the direction of doing in sealing seat 1 perpendicular to axis with valve rod 27 moves (floating, promptly fixing), can also scrape the dust that is attached on the valve rod 27 and other is dirty when axis moves at valve rod 27.Floating ring 2 can also play the effect of damping decompression in addition, and the damping decompression makes the propagation of pressure in the valve pocket reduce to the pressure of 7 of valve rod 27 and fillers, makes filler 7 easy sealed valve stems 27.
Above embodiment is an exemplary embodiment of the present utility model only, is not used in restriction the utility model, and protection domain of the present utility model is defined by the claims.Those skilled in the art can make various modifications or be equal to replacement the utility model in essence of the present utility model and protection domain, this modification or be equal to replacement and also should be considered as dropping in the protection domain of the present utility model.
Claims (10)
1. valve packing seal arrangement, comprise sealing seat, Stuffing box and Gland, the bottom of described sealing seat inner chamber is provided with the floating ring that is set on the valve rod, described Stuffing box is located at the top of described sealing seat inner chamber, in the described Stuffing box filler is set, described Gland is pressed on the described filler, it is characterized in that, described sealing seat is formed by two halfbody textural associations; Described Stuffing box is formed by two halfbody textural associations.
2. valve packing seal arrangement according to claim 1 is characterized in that, two halfbody structures of described sealing seat are about the middle vertical plane symmetry of described sealing seat; Two halfbody structures of described Stuffing box are about the middle vertical plane symmetry of described Stuffing box.
3. valve packing seal arrangement according to claim 1 and 2 is characterized in that, is respectively equipped with a pair of lug on two halfbody structures of described sealing seat, connects by fastening piece between the described lug that is docking together respectively.
4. valve packing seal arrangement according to claim 1 and 2, it is characterized in that, on the periphery of two halfbody structures of described Stuffing box all correspondence offer at least one first annular groove, be embedded in described first annular groove and be used for circlip or spring that two described halfbody structures are tightened together.
5. valve packing seal arrangement according to claim 1 and 2, it is characterized in that, offer corresponding second annular groove of quantity of quantity and described floating ring on the inwall of described sealing seat bottom, described floating ring is located in described second annular groove, and can radially float along with moving radially in described second annular groove of described valve rod.
6. valve packing seal arrangement according to claim 5 is characterized in that the internal diameter of described second annular groove is greater than the external diameter of described floating ring.
7. valve packing seal arrangement according to claim 1 and 2 is characterized in that, the top of described sealing seat outside is provided with first flange, and described Stuffing box outside is provided with second flange, and described first flange is connected by fastening piece with second flange.
8. valve packing seal arrangement according to claim 1 and 2, it is characterized in that, the outside lower end of described sealing seat is provided with cylndrical surface and the lower end surface that the counterbore at the valve rod hole place on the valve gap with described valve cooperates, the bottom of described sealing seat outside is provided with the 3rd flange, and described sealing seat can be connected with the valve gap of described valve by described the 3rd flange.
9. valve packing seal arrangement according to claim 1 and 2, it is characterized in that, described floating ring is the annulus that is spliced by a plurality of ring section head and the tail, offer the 3rd annular groove on the excircle of the described floating ring that is spliced by a plurality of ring section head and the tail, be embedded with in described the 3rd annular groove and be used for a plurality of rings section fastening spring that is stitched together.
10. valve packing seal arrangement according to claim 9 is characterized in that, the end face of described ring section is all tangent with the inner cylindrical surface of described floating ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206809021U CN201902680U (en) | 2010-12-24 | 2010-12-24 | Stuffing sealing device for valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206809021U CN201902680U (en) | 2010-12-24 | 2010-12-24 | Stuffing sealing device for valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201902680U true CN201902680U (en) | 2011-07-20 |
Family
ID=44273274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206809021U Expired - Fee Related CN201902680U (en) | 2010-12-24 | 2010-12-24 | Stuffing sealing device for valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201902680U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537503A (en) * | 2010-12-24 | 2012-07-04 | 秦皇岛秦冶重工有限公司 | Valve filler sealing device |
| CN109595387A (en) * | 2018-12-06 | 2019-04-09 | 建湖县坤腾机械有限公司 | A kind of valve packing sealing structure |
| CN110960774A (en) * | 2019-12-31 | 2020-04-07 | 川北医学院附属医院 | Breathing machine capable of automatically generating oxygen and oxygen generation method thereof |
-
2010
- 2010-12-24 CN CN2010206809021U patent/CN201902680U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537503A (en) * | 2010-12-24 | 2012-07-04 | 秦皇岛秦冶重工有限公司 | Valve filler sealing device |
| CN102537503B (en) * | 2010-12-24 | 2015-04-29 | 秦皇岛秦冶重工有限公司 | Valve filler sealing device |
| CN109595387A (en) * | 2018-12-06 | 2019-04-09 | 建湖县坤腾机械有限公司 | A kind of valve packing sealing structure |
| CN110960774A (en) * | 2019-12-31 | 2020-04-07 | 川北医学院附属医院 | Breathing machine capable of automatically generating oxygen and oxygen generation method thereof |
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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: 20110720 Termination date: 20151224 |
|
| EXPY | Termination of patent right or utility model |