CN204187005U - Vacuum valve packing seal structure - Google Patents
Vacuum valve packing seal structure Download PDFInfo
- Publication number
- CN204187005U CN204187005U CN201420637041.7U CN201420637041U CN204187005U CN 204187005 U CN204187005 U CN 204187005U CN 201420637041 U CN201420637041 U CN 201420637041U CN 204187005 U CN204187005 U CN 204187005U
- Authority
- CN
- China
- Prior art keywords
- filler
- liner
- arrangement
- gland
- seal structure
- 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
Landscapes
- Details Of Valves (AREA)
Abstract
The utility model belongs to the valve technology field with stuffing box, vacuum valve packing seal structure, and comprise the Gland of closed valve gap packing cavity upper end-hole, the inwall of described Gland has sealed groove, is provided with O RunddichtringO in sealing groove; The bottom of packing cavity is provided with heelpiece, the first liner, the first V-arrangement filler second liner, spacer ring, the 3rd liner, the second V-arrangement filler and the 4th liner is disposed with between Gland and heelpiece, the V angle opening direction of the first V-arrangement filler and the second V-arrangement filler is contrary, and spacer ring place arranges and is filled with sealing compound.The utility model tightness better, does not limit stuffing box load mode.
Description
Technical field
The utility model belongs to the valve technology field with stuffing box.
Background technique
Valve is the controlling component in fluid delivery system, has cut-off, adjustment, water conservancy diversion, prevents the functions such as adverse current, voltage stabilizing, shunting or overflow pressure relief.Valve generally comprises valve seat, valve gap, spool and valve rod, and valve seat and valve gap are connected to form the chamber holding spool, and valve rod outer termination power mechanism, valve rod the inner is run through valve gap and is connected with spool, and valve rod band movable valve plug moves up and down and valve is opened and closed gradually.Valve rod leaks to not make the medium in valve body, and the valve rod in being kept in motion needs to carry out motive sealing with valve gap.The sealing of valve rod adopts the form of stuffing box usually, and filler is placed in stuffing box inside.
Existing stuffing box is generally gland type, comprise Gland, swing bolt, Packing seat, Gland is connected by swing bolt with valve gap, but vacuum valve requires higher to the requirement of sealing than common valve, existing stuffing box adopts the compression of radial expansion realization to valve rod of single V-arrangement filler, its shortcoming is: be all from top to bottom load usually during stuffing box loading valve gap, if at this moment the V of V-arrangement filler hands over opening direction identical with loading direction, V does not open at angle completely, there is gap in the axial direction in V-arrangement filler, affect the sealability of vacuum valve packing seal structure, and in fact a lot of workman can wrongly installed direction when operating.In addition, existing filling material is solid-state, and as asbestos, graphite etc., especially asbestos or other braided packing always there will be small interfacial gap, probably cause fugacity to be revealed, and finally affects the degree of vacuum of vacuum valve.
Model utility content
The utility model is intended to provide a kind of tightness better, not limit vacuum valve packing seal structure to stuffing box load mode.
Vacuum valve packing seal structure in this programme, comprise the Gland of closed valve gap packing cavity upper end-hole, the inwall of described Gland has sealed groove, is provided with O RunddichtringO in sealing groove; The bottom of packing cavity is provided with heelpiece, the first liner, the first V-arrangement filler second liner, spacer ring, the 3rd liner, the second V-arrangement filler and the 4th liner is disposed with between Gland and heelpiece, the V angle opening direction of the first V-arrangement filler and the second V-arrangement filler is contrary, and spacer ring place arranges and is filled with sealing compound.
The beneficial effects of the utility model: be provided with O RunddichtringO on the inwall of Gland, about serving good sealing, prevent valve rod from movement process, taking medium to Gland place and reveal between valve rod and Gland; The V angle opening direction of the first V-arrangement filler and the second V-arrangement filler is contrary, so no matter stuffing box loads packing cavity from the either end of valve rod, can ensure that the V angle having a V-arrangement filler at least is opened completely, there will not be axial clearance, can not make mistakes when workman loads filler; In addition, V-arrangement filler has certain elasticity, can compress valve rod diametrically, makes the motive sealing that valve rod can be good in movement process.In addition, arrange at spacer ring place and be filled with sealing compound, improve filling-material structure tightness.
Further, the V angle of described first V-arrangement filler upward, the V angle of the second V-arrangement filler down, avoid V angle that workman causes because of wrongly installed V-arrangement filler direction and cannot open and occur axial clearance.
Further, described first V-arrangement filler and the second V-arrangement filler are tetrafluoro filler, and tetrafluoro filler has good corrosion resistance, can prevent from causing packing seal to occur the situation that fugacity is revealed because of corrosion;
Further, described sealing compound is polysulfide sealant, has good tightness and water proofing property.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model vacuum valve packing seal structure embodiment.
Embodiment
Below by embodiment, the utility model is described in further detail:
Reference character in Figure of description comprises: 1-Gland, 2-O RunddichtringO, 3-first liner, 4-first V-arrangement tetrafluoro filler, 5-second liner, 6-spacer ring, 7-the 3rd liner, 8-second V-arrangement tetrafluoro filler, 9-the 4th liner, 10-heelpiece, 11-valve rod.
Embodiment is substantially as shown in drawings: vacuum valve packing seal structure, is positioned at the packing cavity of valve gap, and valve rod 11 axially runs through this packing cavity.Vacuum valve packing seal structure in the present embodiment, comprise Gland 1, Gland 1 is positioned at the upper end-hole of packing cavity and this upper end-hole is closed, Gland 1 only leaves the valve rod hole moved for valve rod 11, the valve rod hole inwall of Gland 1 opens Packed groove, loads O RunddichtringO 2 in this groove.
The bottom of packing cavity is provided with heelpiece 10, be disposed with between Gland 1 and heelpiece 10 the V angle of the first liner 3, first V-arrangement tetrafluoro filler 4, second liner 5, spacer ring 6, the 3rd liner 7, second V-arrangement tetrafluoro filler 8 and the 4th liner 9, first V-arrangement tetrafluoro filler 4 upward, the V angle of the second V-arrangement tetrafluoro filler 8 down.Spacer ring 6 is between the second liner 5 and the 3rd liner 7, and the axial pressure of Gland 1 is prevented because filler part is long equably step by step on filler, and the pressure of Gland 1 makes filler part bend.Spacer ring 6, between the second liner 5 and the 3rd liner 7, is filled and is injected polysulfide sealant, can improve the tightness of filler part.
Above-described is only embodiment of the present utility model, and in scheme, the general knowledge such as known concrete structure and characteristic does not do too much description at this.Should be understood that; for a person skilled in the art, under the prerequisite not departing from the utility model structure, some distortion and improvement can also be made; these also should be considered as protection domain of the present utility model, and these all can not affect effect and the practical applicability of the utility model enforcement.The protection domain that this application claims should be as the criterion with the content of its claim, and the embodiment in specification etc. record the content that may be used for explaining claim.
Claims (4)
1. vacuum valve packing seal structure, comprise the Gland of closed valve gap packing cavity upper end-hole, it is characterized in that, the inwall of described Gland has sealed groove, is provided with O RunddichtringO in sealing groove; The bottom of packing cavity is provided with heelpiece, the first liner, the first V-arrangement filler second liner, spacer ring, the 3rd liner, the second V-arrangement filler and the 4th liner is disposed with between Gland and heelpiece, the V angle opening direction of the first V-arrangement filler and the second V-arrangement filler is contrary, and spacer ring place arranges and is filled with sealing compound.
2. vacuum valve packing seal structure according to claim 1, is characterized in that: the V angle of described first V-arrangement filler upward, the V angle of the second V-arrangement filler down.
3. vacuum valve packing seal structure according to claim 2, is characterized in that: described first V-arrangement filler and the second V-arrangement filler are tetrafluoro filler.
4. vacuum valve packing seal structure according to claim 2, is characterized in that: described sealing compound is polysulfide sealant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420637041.7U CN204187005U (en) | 2014-10-30 | 2014-10-30 | Vacuum valve packing seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420637041.7U CN204187005U (en) | 2014-10-30 | 2014-10-30 | Vacuum valve packing seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204187005U true CN204187005U (en) | 2015-03-04 |
Family
ID=52619007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420637041.7U Expired - Fee Related CN204187005U (en) | 2014-10-30 | 2014-10-30 | Vacuum valve packing seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204187005U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109210270A (en) * | 2017-07-01 | 2019-01-15 | 上海威纳工程技术有限公司 | A kind of pressure essence control type packing installation method |
-
2014
- 2014-10-30 CN CN201420637041.7U patent/CN204187005U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109210270A (en) * | 2017-07-01 | 2019-01-15 | 上海威纳工程技术有限公司 | A kind of pressure essence control type packing installation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205001532U (en) | High -pressure wafer valve that surges of preventing leaking | |
| CN205173525U (en) | Submarine pipeline pair gate valve | |
| CN204187005U (en) | Vacuum valve packing seal structure | |
| CN104329463A (en) | Vacuum valve packing sealing structure | |
| CN104329462A (en) | Low-dispassion packing seal structure | |
| CN207064702U (en) | A kind of Subzero valve | |
| CN104329464A (en) | Safe packing seal structure | |
| CN205190938U (en) | Prevent loss stem seal structure | |
| CN205207745U (en) | Floating ball valve | |
| CN204962008U (en) | Two packing seal valves | |
| CN205937950U (en) | Take monolith support's ball valve that valve rod blew off of preventing | |
| CN204691696U (en) | A kind of high-temperature metal sealing petroleum tube connector | |
| CN204372315U (en) | Corrosion resistant type packing seal structure | |
| CN204187007U (en) | Safety type packing seal structure | |
| CN204187006U (en) | Low loss packing seal structure | |
| CN207297901U (en) | A kind of dark valve with cut-off spool | |
| CN202612828U (en) | Valve rod sealing structure | |
| CN206017810U (en) | A kind of Full floating bulkhead gate | |
| CN204328185U (en) | Valve built-in fat alternately multi-sealed stuffing box structure | |
| CN205663901U (en) | Corrugated tube stop valve of area direction muscle valve clack | |
| CN203348568U (en) | Flow control valve mechanism | |
| CN214534787U (en) | Stuffing box of metal sealing fixed ball valve | |
| CN203532761U (en) | Pitshaft sealing device of underground gas storage well | |
| CN216343927U (en) | Piston rod double-guide double-seal cut-off valve | |
| CN212455564U (en) | Open and close ash valve |
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: 20150304 Termination date: 20151030 |
|
| EXPY | Termination of patent right or utility model |