CN202580272U - Stuffing box ball valve with compensation function - Google Patents
Stuffing box ball valve with compensation function Download PDFInfo
- Publication number
- CN202580272U CN202580272U CN 201120535170 CN201120535170U CN202580272U CN 202580272 U CN202580272 U CN 202580272U CN 201120535170 CN201120535170 CN 201120535170 CN 201120535170 U CN201120535170 U CN 201120535170U CN 202580272 U CN202580272 U CN 202580272U
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- CN
- China
- Prior art keywords
- valve
- valve rod
- stuffing box
- spheroid
- gland
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- 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 relates to a stuffing box ball valve with compensation function, comprising a valve body having a medium channel, a ball body disposed in the valve body, and a valve rod driving the ball body to rotate. The top part of the valve body is provided with a boss, and the valve rod traverses through a valve rod hole in the boss. The inner end is connected to the ball body, and the outer end extends outside of the valve body. The valve rod hole is provided with filling materials which encircle and compress the periphery of the valve rod for the sealing between the valve rod and the valve body. The valve rod is sleeved by a filling material gland used for compressing and sealing the filling materials from above. The filling material gland is in a sliding fit with the valve rod hole. The valve rod disposed at the upper part of the filling material gland is screwed with a nut. A spring or a spring assembly under a compression state is disposed between the nut and the filling material gland. The stuffing box ball valve with compensation function is advantageous in that the filling material gland can be automatically adjusted, and the compression state between the filling material gland and the filling materials can be maintained; reliable compression between the filling material gland and the filling materials can be maintained and operation is simple.
Description
Technical field
The utility model relates to a kind of stuffing box ball valve, is specifically related to a kind of stuffing box ball valve with automatic compensation function.
Background technique
As shown in Figure 1, existing stuffing box ball valve comprises valve body 11, valve gap 1, valve seat 2, spheroid 10, valve rod 8, handle 9, filler 3 and Gland 4, and said spheroid is positioned at the lumen 13 that said valve body and valve gap surround; Said valve seat is installed in said valve gap and the valve body; Be positioned at the suction side and the outlet side of said lumen, the sealing surface on sealing surface on the said spheroid and the said valve seat cooperatively interacts, and constitutes the sealing pair of valve; Said valve rod is used to drive spheroid and rotates; The through hole that valve rod passes said valve body extends to outside the valve body, is provided with filler in the radial direction through hole of said valve body, said filler surround and be pressed on said valve rod around; Flip sleeve is connected to the Gland that is used for compressing and sealing from the top said filler on the said valve rod, and said Gland is threaded with said radial direction through hole.After compacting after a while, the height of said filler will reduce, and in order to keep the impaction state of said filler, needs the said Gland of downward turn, makes filler keep certain consolidation degree, to guarantee the sealing effect at valve rod place; When each filler because of compress for a long time highly descend after, all need the said Gland of downward turn to compress filler, relatively waste time and energy, and inconvenient operation.
The model utility content
In order to overcome the above-mentioned defective of existing technology; The utility model provides a kind of stuffing box ball valve with compensation; The position that this ball valve can be adjusted Gland automatically compresses to keep the impaction state between itself and the filler, to remain between the two reliably, and is easy and simple to handle.
The technological scheme that the utility model provides: a kind of band compensation stuffing box ball valve; Comprise the valve body that is provided with medium channel, be positioned at the spheroid of said valve body and be used to drive the valve rod that said spheroid rotates, the top of said valve body is provided with boss, and said valve rod passes the valve rod hole on the said boss; The inner end connects said spheroid; The outer end extends to outside the said valve body, is provided with filler in the said valve rod hole, said filler surround and be pressed on said valve rod around be used for the sealing between valve rod and valve body; Be slidingly matched on the said valve rod and be useful on the Gland that compresses and seal said filler from the top; Said Gland and said valve rod hole are slidingly matched, and also are connected with nut on the said valve rod of said Gland top, are provided with the spring or the cluster spring that are in compressive state between said nut and the Gland.
Be preferably; Said spring comprises butterfly spring; Said cluster spring comprises that said spring or cluster spring are socketed on the said valve rod by the stacked butterfly spring group of forming of a plurality of butterfly springs, and its upper and lower end is resisted against the lower end surface of said nut and the upper-end surface of said Gland respectively.
Can also be provided with on the said valve rod of said nut upper end and be used to limit the axially stop block that said nut moves up, in use get loose to prevent said nut.
Said axially stop block is preferably the snap ring of spacing usefulness.
Can be connected through middle flange between said valve body and the valve gap, and can fix it, be provided with elastomer seal between the corresponding junction surface of said valve gap and valve body through middle secure bolt.
Above-mentioned any one described band compensation stuffing box ball valve can also comprise valve seat; Said valve seat is installed in the valve passage of said spheroid side; Quantity is one or two, and said two valve seats lay respectively at the not homonymy of said spheroid, and said valve seat is provided with sealing surface of seat; Constitute two sealing surfaces of the sealing pair of valve jointly with corresponding sphere on the said spheroid, said valve seat is the flexible valve seat that elastic material is processed.
Said sealing surface of seat is preferably the arc shaped surface that the sphere with said spheroid adapts.
Said valve seat and said elastomer seal are preferably processed by polytetrafluoroethylmaterial material.
Said valve rod can be connected through key with spheroid.
The upper end of said valve rod can also have drive unit in succession.
The beneficial effect of the utility model is: owing between said Gland and nut, be provided with the spring that is in compressive state; Form and continue the required compressive load of compacting filler, when highly descending after the long-time compacting of filler quilt, said spring can utilize automatic compensation function; Rely on spring force all the time said Gland to be pressed on the filler; Thereby make filler remain certain consolidation degree,, reduce unnecessary fault power time and leakage loss so that the sealing effect at said valve rod place is able to assurance; Sealing is strong, uses very convenient.
Description of drawings
Fig. 1 is the structural drawing of existing stuffing box ball valve;
Fig. 2 is an embodiment's of the utility model a ball valve opening state structural drawing;
Fig. 3 is an embodiment's of the utility model a ball valve closed condition structural drawing.
Embodiment
As shown in Figures 2 and 3, the utility model provides a kind of band compensation stuffing box ball valve, comprises valve body 11, the spheroid 10 that is positioned at said valve body that is provided with medium channel and is used to drive the valve rod 8 that said spheroid rotates; The top of said valve body is provided with boss, and said valve rod passes the valve rod hole on the said boss, and the inner end connects said spheroid; The outer end extends to outside the said valve body; For the sealing between said valve rod and the valve body, be provided with filler 3 in the said valve rod hole, said filler surround and be pressed on said valve rod around; Said valve rod can rotate to drive the spheroid rotation relative to said valve body in valve rod hole; Cover is useful on the Gland 4 that compresses and seal said filler from the top on the said valve rod, and said Gland and said valve rod hole are slidingly matched (Spielpassung), also is connected with nut 6 on the said valve rod of said Gland top; Be preferably that correspondence is provided with one section outside thread on the said valve rod; Be threaded between said nut and the valve rod, be provided with the spring or the cluster spring 5 that are in compressive state between said nut and the Gland, rely on precompression energy stored in said spring or the cluster spring said Gland to be pressed on the top of said filler; When filler is compacted the back and when highly descending; The compensation and discharge elastic force and all the time said Gland is pressed on the filler automatically of said spring or cluster spring has guaranteed to compress reliably between the two, need not often to give to step up to save unnecessary dead time.
Said spring can for butterfly spring, helical spring, spring sheet or other can play similar effect can the precompression stored energy device; Be preferably butterfly spring; Said cluster spring can be for being interconnected the stacked butterfly spring group of forming by a plurality of butterfly springs; Also can for by the socket each other of a plurality of helical springs, serial connection or and connect the helical spring group of forming, can also for a plurality of spring sheets stacks, serial connection or and connect the spring plate group of composition, be preferably the butterfly spring group; Said spring or cluster spring are preferably can be at the paired Gland of whole peripheral shape of said valve rod or the pressure of uniform filling; For example can be enclosed within on the said valve rod, its upper end is resisted against the lower end surface of said nut, and its lower end abutment is in the upper-end surface of said Gland; Said spring or cluster spring are in compressive state always, can play certain pressuring action to Gland and filler to guarantee it.
Can be provided with on the said valve rod of said nut upper end and be used to limit the axially stop block that moves on the said nut, said axially stop block is preferably the snap ring of spacing usefulness.The epimere of said valve rod is provided with radial groove, is embedded with said snap ring at groove, utilizes said snap ring can play certain locking effect, weakens the pretightening force of spring to prevent to move up after said nut from getting loose.
Can be connected through middle flange between said valve body and the valve gap, and can fix it, be provided with the elastomer seal 14 that seals between the corresponding junction surface of said valve gap and valve body through middle secure bolt 15.
Said band compensation stuffing box ball valve can also comprise valve seat 2; Said valve seat is installed in the valve passage of said spheroid side; Quantity is one or two, and said two valve seats lay respectively at the not homonymy of said spheroid, and said valve seat is provided with sealing surface of seat; Constitute two sealing surfaces of the sealing pair of valve jointly with corresponding sphere on the said spheroid, said valve seat is the flexible valve seat that elastic material is processed.
Said sealing surface of seat is preferably the corresponding arc shaped surface of sphere (cylindrical sealing surface) with said spheroid.
Said Flexible Connector and valve seat preferably adopt polytetrafluoroethylmaterial material to process, and improve the ability of the corrosion protection, antiscour etc. of Sealing to utilize polytetrafluoroethylmaterial material favorable mechanical, chemical property.
Said spheroid is provided with the hole that said valve rod is installed, and said valve rod cooperates with spheroid hole axle, and through key both is linked together.
Said valve body is provided with valve gap 1, said valve gap be provided with said valve body on the common medium channel that constitutes whole valve of the through hole that is communicated with of medium channel, said spheroid is separated into the medium channel of said valve in left chamber 16, lumen 13 and the right chamber 12 of valve.
The upper end of said valve rod can also have drive unit in succession.Said drive unit can be manual driving device and/or automatic drive; Said manual driving device can comprise handle 9 or handwheel; Present embodiment is preferably handle as drive unit; Said handle is fixed through fastening screw trip bolt 7 and valve rod, said automatic drive can for electronic, electromagnetism moving, pneumatic or fluid pressure drive device, to adapt to the operation under the different situations.
" interior ", " outward " in this specification, " on ", the word of expression direction such as D score " left side ", " right side " only is for the facility on explaining, and do not constitute the qualification to actual service orientation.
Claims (10)
1. a band compensates the stuffing box ball valve; Comprise the valve body that is provided with medium channel, be positioned at the spheroid of said valve body and be used to drive the valve rod that said spheroid rotates, the top of said valve body is provided with boss, and said valve rod passes the valve rod hole on the said boss; The inner end connects said spheroid; The outer end extends to outside the said valve body, is provided with filler in the said valve rod hole, said filler surround and be pressed on said valve rod around be used for the sealing between valve rod and valve body; It is characterized in that cover is useful on the Gland that compresses and seal said filler from the top on the said valve rod; Said Gland and said valve rod hole are slidingly matched, and also are connected with nut on the said valve rod of said Gland top, are provided with the spring or the cluster spring that are in compressive state between said nut and the Gland.
2. band compensation stuffing box ball valve as claimed in claim 1; It is characterized in that said spring comprises butterfly spring; Said cluster spring comprises the butterfly spring group of being made up of a plurality of butterfly springs; Said spring or cluster spring are enclosed within on the said valve rod, and its upper and lower end is resisted against the lower end surface of said nut and the upper-end surface of said Gland respectively.
3. band compensation stuffing box ball valve as claimed in claim 2 is characterized in that the said valve rod of said nut upper end is provided with axially stop block.
4. band compensation stuffing box ball valve as claimed in claim 3 is characterized in that said axially stop block is the snap ring of spacing usefulness.
5. band as claimed in claim 4 compensation stuffing box ball valve is characterized in that being connected through middle flange between said valve body and the valve gap, and through middle secure bolt it is fixed, and is provided with elastomer seal between the corresponding junction surface of said valve gap and valve body.
6. like claim 1,2,3,4 or 5 described band compensation stuffing box ball valves; It is characterized in that also comprising valve seat, said valve seat is installed in the valve passage of said spheroid side, and quantity is one or two; Said two valve seats lay respectively at the not homonymy of said spheroid; Said valve seat is provided with sealing surface of seat, constitutes two sealing surfaces of the sealing pair of valve jointly with corresponding sphere on the said spheroid, and said valve seat is the flexible valve seat that elastic material is processed.
7. band compensation stuffing box ball valve as claimed in claim 6 is characterized in that the arc shaped surface that said sealing surface of seat adapts for the sphere with said spheroid.
8. band as claimed in claim 7 compensation stuffing box ball valve is characterized in that said valve seat and said elastomer seal processed by polytetrafluoroethylmaterial material.
9. band compensation stuffing box ball valve as claimed in claim 8 is characterized in that said valve rod is connected through key with spheroid.
10. band compensation stuffing box ball valve as claimed in claim 9 is characterized in that the upper end of said valve rod also has drive unit in succession.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120535170 CN202580272U (en) | 2011-12-20 | 2011-12-20 | Stuffing box ball valve with compensation function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120535170 CN202580272U (en) | 2011-12-20 | 2011-12-20 | Stuffing box ball valve with compensation function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202580272U true CN202580272U (en) | 2012-12-05 |
Family
ID=47249683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120535170 Expired - Fee Related CN202580272U (en) | 2011-12-20 | 2011-12-20 | Stuffing box ball valve with compensation function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202580272U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104653858A (en) * | 2013-11-18 | 2015-05-27 | 费希尔控制国际公司 | Methods And Apparatus To Load Valve Packing |
| CN108679297A (en) * | 2018-08-01 | 2018-10-19 | 张家港市利佳纺织有限公司 | A kind of packing seal structure of spandex production |
| CN111043323A (en) * | 2019-12-31 | 2020-04-21 | 浙江大学 | Valve sealing structure capable of reducing abrasion and method thereof |
-
2011
- 2011-12-20 CN CN 201120535170 patent/CN202580272U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104653858A (en) * | 2013-11-18 | 2015-05-27 | 费希尔控制国际公司 | Methods And Apparatus To Load Valve Packing |
| CN108679297A (en) * | 2018-08-01 | 2018-10-19 | 张家港市利佳纺织有限公司 | A kind of packing seal structure of spandex production |
| CN111043323A (en) * | 2019-12-31 | 2020-04-21 | 浙江大学 | Valve sealing structure capable of reducing abrasion and 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: 20121205 Termination date: 20151220 |
|
| EXPY | Termination of patent right or utility model |