CN107061855A - A kind of valve output shaft seal structure - Google Patents
A kind of valve output shaft seal structure Download PDFInfo
- Publication number
- CN107061855A CN107061855A CN201710348020.1A CN201710348020A CN107061855A CN 107061855 A CN107061855 A CN 107061855A CN 201710348020 A CN201710348020 A CN 201710348020A CN 107061855 A CN107061855 A CN 107061855A
- Authority
- CN
- China
- Prior art keywords
- plate
- output shaft
- ring flat
- graphite
- valve
- 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
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
Abstract
The invention provides a kind of valve output shaft seal structure, including valve body and the base for being fixed on the valve inner, the base is provided with output shaft, graphite ring flat-plate is provided between the output shaft and gland.In the present invention, set again between the valve output shaft and gland instead of graphite rope by using graphite ring flat-plate or graphite annulus, utilize the high temperature resistant of graphite ring flat-plate and graphite annulus, corrosion resistant characteristic, so as to be effectively increased valve air-tightness and valve air-tightness it is ageing, add the practicality of valve.
Description
Technical field
The invention mainly relates to the technical field of valve, more particularly to a kind of valve output shaft seal structure.
Technical background
Valve is the control unit in fluid delivery system, with cut-off, regulation, water conservancy diversion, prevents adverse current, voltage stabilizing, shunting
Or the function such as overflow pressure relief.
In existing valve technology field, in order to ensure the sealing between sealed base and sealing gland, so that
Junction between base output shaft and gland is wound with graphite rope, is realized with this tight between base output shaft and gland
Close property.
Above-mentioned existing structure has joint at sealing, there is out-of-flatness, seals also bad phenomenon, causes valve base close
Envelope property is not enough, influences the working effect of valve.
The content of the invention
The invention mainly relates to a kind of valve output shaft seal structure, to solve what is proposed in above-mentioned technical background, by
Graphite rope is wound between base output shaft and closure and causes the not enough technical problem of valve base sealing.
The present invention solve the technical scheme that uses of above-mentioned technical problem for：A kind of valve output shaft seal structure, including valve
Body and the base for being fixed on the valve inner, the base are provided with output shaft, and stone is provided between the output shaft and gland
Black ring flat-plate.
It is preferred that, the graphite ring flat-plate is compiled into by soft graphite.
It is preferred that, the graphite ring flat-plate is provided with one or more.
It is preferred that, a side external surface of the graphite ring flat-plate is provided with positive groove, the graphite annulus
Another side external surface of plate is provided with reverse groove.
It is preferred that, the reverse groove of the positive groove of the graphite ring flat-plate described in previous piece and the graphite ring flat-plate described in latter piece
It is mutually ratcheting.
The internal diameter of the graphite ring flat-plate is the 1/3 of the graphite ring flat-plate external diameter.
It is preferred that, the graphite ring flat-plate can be graphite annulus.
It is preferred that, the graphite ring flat-plate or graphite annulus are slidably mounted in the preceding end bearing of the base output shaft,
And the internal diameter of the graphite ring flat-plate or graphite annulus is more than base output shaft diameter 1mm-2mm.
Compared with prior art, beneficial effects of the present invention are：
1. of the invention main replace graphite rope by using graphite ring flat-plate, installed in base output shaft and closure it
Between, so as to add the sealing of valve base；Meanwhile, graphite ring flat-plate high temperature resistant itself, corrosion resistant characteristic, so that effectively
Add valve air-tightness and valve air-tightness it is ageing；
2. in the present invention, the need for can be by specific actual conditions, Selection utilization graphite ring flat-plate or graphite annulus generation
For graphite rope, so as to add the diversity of its structure.
3. it is in the present invention, mutually ratcheting by forward and reverse groove between the adjacent graphite ring flat-plate, so as to add
Compactness between graphite ring flat-plate, further, adds the air-tightness between base output shaft and closure.
Detailed explanation is carried out to the present invention below with reference to accompanying drawing and specific embodiment.
Brief description of the drawings
Fig. 1 is structural representation of the invention；
Fig. 2 is the front view of the graphite ring flat-plate of the present invention；
Fig. 3 is the rearview of the graphite ring flat-plate of the present invention.
In figure：1- valve bodies；2- bases；3- output shafts；4- glands；5- graphite ring flat-plates；51- forward direction grooves；The reverse teeth of 52-
Line.
Embodiment
For the ease of understanding the present invention, the present invention is described more fully below with reference to relevant drawings, accompanying drawing
In give the present invention some embodiments, but the present invention can be realized by different forms, however it is not limited to text institute
The embodiment of description, opposite is in order that more thorough comprehensive to present disclosure there is provided these embodiments.
Need explanation when, when element is referred to as " being fixedly arranged on " another element, it can be directly on another element
There can also be element placed in the middle, when an element is considered as " connection " another element, it can be directly to separately
One element may be simultaneously present centering elements, term as used herein " vertically ", " level ", "left", "right"
And similar statement is for illustrative purposes only.
Unless otherwise defined, all of technologies and scientific terms used here by the article is with belonging to technical field of the invention
The implication that technical staff generally connects is identical, herein in the description of the invention used term knowledge in order to describe tool
The purpose of the embodiment of body, it is not intended that of the invention in limitation, term as used herein " and/or " include one or more phases
The arbitrary and all combination of the Listed Items of pass.
Embodiment 1, refer to accompanying drawing 1-3, a kind of valve output shaft seal structure, including valve body 1 and is fixed on the valve
The base 2 in internal portion, the base 2 is provided with output shaft 3, and graphite ring flat-plate 5 is provided between the output shaft 3 and gland 4.
The graphite ring flat-plate 5 is compiled into by soft graphite, and the graphite ring flat-plate 5 is provided with one or more, described
One side external surface of graphite ring flat-plate 5 is provided with positive groove 51, and another side external surface of the graphite ring flat-plate 5 is provided with reverse groove
52, the mutual tooth of reverse groove 52 of the positive groove 51 of the graphite ring flat-plate 5 described in previous piece and the graphite ring flat-plate 5 described in latter piece
Close, the internal diameter of the graphite ring flat-plate 5 is the 1/3 of the external diameter of graphite ring flat-plate 5, the graphite ring flat-plate 5 can be graphite annulus, the stone
Black ring flat-plate 5 or graphite annulus are slidably mounted in the preceding end bearing of the base output shaft 3, and the graphite ring flat-plate 5 or stone
Mo Huan internal diameter is more than the diameter 1mm-2mm of base output shaft 3.
When valve body is operated, due to working long hours for connection member, can cause base output shaft 3 and gland 4 it
Between can produce heat, when using graphite rope winding to meet sealing when, heat can come out from junction, so as to influence
The service life of graphite rope, the time one is grown, and after graphite rope wears down, just influences whether the air-tightness of valve output shaft 3；When
When replacing graphite rope using graphite ring flat-plate or graphite annulus, because graphite ring flat-plate 5 and graphite annulus have resistant to elevated temperatures spy in itself
Property, so that the damage caused due to hot properties due to graphite ring flat-plate 5 and graphite annulus is not resulted in, so as to add valve
The air-tightness of output shaft 3 it is ageing.
Embodiment 2, in the routine use of valve, after a period of time, due to the characteristic valve of graphite rope in itself, valve is defeated
The phenomenon of corrosion just occurs in graphite rope between shaft 3 and gland 4, after graphite rope corrodes, the valve output shaft 3
There will be gap between gland 4, so as to have impact on the air-tightness between valve output shaft 3 and gland 4；By using graphite
Ring flat-plate 5 or graphite annulus replace graphite rope, because graphite ring flat-plate 5 and graphite annulus have etch-proof characteristic in itself, so as to avoid
The problem of air-tightness between the valve output shaft 3 and gland 4 that are caused due to corrosion phenomenon.
Embodiment 3, when setting multiple graphite ring flat-plates 5 between the base output shaft 3 and the gland 4, at the bottom
Seat output shaft 3 is inserted in first graphite ring flat-plate 5, and first graphite ring flat-plate 5 is provided with the side of positive groove 51 bottom of towards
Seat 2, when being arranged second graphite ring flat-plate 5 on the base output shaft 3, from second graphite ring flat-plate 5 provided with reverse
The side of groove 52 is inserted on base output shaft 3, and by the reverse groove 52 and first on the graphite ring flat-plate 5 described in second
The ratcheting fixation manually of positive groove 51 on individual described graphite ring flat-plate 5, after most what a graphite ring flat-plate 5 is determined, will
Gland 4 is connected with the base output shaft 3, and the combination of the graphite ring flat-plate 5 is fixed on the base output shaft 3 and the gland
Between 4；By using the mutual ratcheting of the forward and reverse groove on graphite ring flat-plate 5, so that between considerably increasing graphite ring flat-plate 5
Air-tightness, and then improve the air-tightness between base output shaft 3 and gland 4, improve the practicality of valve.
In the routine use of valve, generally using on the screw thread on graphite rope winding valve output shaft 3, by gland 4
It is fixedly connected with the valve output shaft 3, because graphite rope has corrosivity, so, during prolonged use, graphite
Line can cause the phenomenon of corrosion, after graphite is by corroding, gap will be formed between valve output shaft 3 and gland 4, further
The seepage that will result in liquid, when the liquid conveyed in valve is toxic liquid or other harmful materials, just
Serious phenomenon can be caused.
Meanwhile, when the liquid in described valve body 1 is corrosive the liquid of effect for acid or alkaline or band, when
When there is a little fluid seepage phenomenon, the corrosion phenomenon of graphite rope will be aggravated, according to above-mentioned phenomenon, in base output shaft 3
One or more graphite ring flat-plate 5 is arranged on bearing, it is defeated to improve base using graphite ring flat-plate 5 is corrosion-resistant, resistant to elevated temperatures phenomenon
Air-tightness between shaft 3 and gland 4, it is to avoid valve body 1 internal liquid seepage, so as to improve the service life of valve.
During valve body 1 is installed, graphite annulus can also be arranged on the bearing of the base output shaft 3, at the bottom
It is arranged on the bearing of seat output shaft 3 after multiple graphite annulus, the installation strength of valve body 1 can not only be effectively reduced, simultaneously as stone
Mo Huan structure is relatively simple compared to the structure of graphite ring flat-plate 5, while consumptive material is less, so, when using graphite annulus,
Cost can be reduced compared with graphite ring flat-plate 5, meanwhile, installation strength is reduced compared with graphite ring flat-plate 5, installation effectiveness is improved.
When the liquid in the valve body 1 is strongly corrosion liquid, it is necessary to defeated to increase base using multiple graphite slide plates 5
Air-tightness between shaft 3 and gland 4.A graphite ring flat-plate 5, the graphite annulus are first arranged on the bearing of base output shaft 3
The side that plate 5 is provided with positive groove 51 is installed towards the inner side of base output shaft 3, and second graphite ring flat-plate 5 is same
Direction is installed, and the positive groove 51 of second piece of graphite ring flat-plate 5 is contacted with the reverse groove 52 of first piece of graphite ring flat-plate 52,
And the reverse groove 52 of the positive groove 51 of second piece of graphite ring flat-plate 5 and first piece of graphite ring flat-plate 52 is mutually ratcheting, from
And add the compactness of the structure between base output shaft and gland 4.
It is of the invention mainly to replace graphite rope by using graphite ring flat-plate 5 or graphite annulus, utilize graphite ring flat-plate 5 and graphite
The high temperature resistant and etch-proof characteristic of ring in itself, so as to be effectively increased the air-tightness of valve and the timeliness of valve air-tightness
Property；Meanwhile, by using the mutual ratcheting of the positive groove 51 on graphite ring flat-plate 5 and reverse groove 52, so as to considerably increase
The compactness of structure between graphite ring flat-plate 5, and then the air-tightness between base output shaft 3 and gland 4 is improved, improve valve
Practicality.
Embodiment described above only expresses certain embodiment of the present invention, and it describes more specific and detailed, but simultaneously
Therefore the limitation to the scope of the claims of the present invention can not be interpreted as.It should be pointed out that for one of ordinary skill in the art
For, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the guarantor of the present invention
Protect scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (8)
1. a kind of valve output shaft seal structure, including valve body (1) and the base (2) for being fixed on the valve inner, the bottom
Seat (2) is provided with output shaft (3), it is characterised in that：Graphite ring flat-plate (5) is provided between the output shaft (3) and gland (4).
2. a kind of valve output shaft seal structure according to claim 1, it is characterised in that：The graphite ring flat-plate (5) is
It is compiled into by soft graphite.
3. a kind of valve output shaft seal structure according to claim 1, it is characterised in that：The graphite ring flat-plate (5) sets
There are one or more.
4. a kind of valve output shaft seal structure according to claim 1, it is characterised in that：The graphite ring flat-plate (5)
One side external surface is provided with positive groove (51), and another side external surface of the graphite ring flat-plate (5) is provided with reverse groove (52).
5. a kind of valve output shaft seal structure according to claim 3 or 4, it is characterised in that：Stone described in previous piece
The reverse groove (52) of the positive groove (51) of black ring flat-plate (5) and the graphite ring flat-plate (5) described in latter piece is mutually ratcheting.
6. a kind of valve output shaft seal structure according to claim 1, it is characterised in that：The graphite ring flat-plate (5)
Internal diameter is the 1/3 of graphite ring flat-plate (5) external diameter.
7. a kind of valve output shaft seal structure according to claim 1, it is characterised in that：The graphite ring flat-plate (5) can
For graphite annulus.
8. a kind of valve output shaft seal structure according to claim 1 or 7, it is characterised in that：The graphite ring flat-plate (5)
Or graphite annulus is slidably mounted in the preceding end bearing of the base output shaft (3), and the graphite ring flat-plate (5) or graphite annulus
Internal diameter be more than base output shaft (3) the diameter 1mm-2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710348020.1A CN107061855A (en) | 2017-05-17 | 2017-05-17 | A kind of valve output shaft seal structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710348020.1A CN107061855A (en) | 2017-05-17 | 2017-05-17 | A kind of valve output shaft seal structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107061855A true CN107061855A (en) | 2017-08-18 |
Family
ID=59610057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710348020.1A Pending CN107061855A (en) | 2017-05-17 | 2017-05-17 | A kind of valve output shaft seal structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107061855A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001036854A1 (en) * | 1999-11-15 | 2001-05-25 | Garlock, Inc. | Forged valve stem packing set |
| US6250604B1 (en) * | 1998-03-02 | 2001-06-26 | T & R Solutions, Inc. | Valve stem and method of manufacturing, improved stem packing |
| CN201531675U (en) * | 2009-09-23 | 2010-07-21 | 浙江国泰密封材料股份有限公司 | Combined packing ring used for low-leakage valve |
| CN203453605U (en) * | 2013-08-10 | 2014-02-26 | 江苏焱鑫科技股份有限公司 | Long telescopic type soot blower valve sealing structure |
| CN105042078A (en) * | 2015-07-28 | 2015-11-11 | 南通艾迈特机械有限公司 | High-temperature-resistant and high-pressure-resistant shaft sealing device |
| CN205207888U (en) * | 2015-11-26 | 2016-05-04 | 浙江国泰密封材料股份有限公司 | Low loss valve is with packing |
| CN205371794U (en) * | 2016-01-12 | 2016-07-06 | 广州安卓机械科技有限公司 | Valve rod combined packing that flexible graphite ring sum has this flexible graphite ring is sealed |
-
2017
- 2017-05-17 CN CN201710348020.1A patent/CN107061855A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6250604B1 (en) * | 1998-03-02 | 2001-06-26 | T & R Solutions, Inc. | Valve stem and method of manufacturing, improved stem packing |
| WO2001036854A1 (en) * | 1999-11-15 | 2001-05-25 | Garlock, Inc. | Forged valve stem packing set |
| CN201531675U (en) * | 2009-09-23 | 2010-07-21 | 浙江国泰密封材料股份有限公司 | Combined packing ring used for low-leakage valve |
| CN203453605U (en) * | 2013-08-10 | 2014-02-26 | 江苏焱鑫科技股份有限公司 | Long telescopic type soot blower valve sealing structure |
| CN105042078A (en) * | 2015-07-28 | 2015-11-11 | 南通艾迈特机械有限公司 | High-temperature-resistant and high-pressure-resistant shaft sealing device |
| CN205207888U (en) * | 2015-11-26 | 2016-05-04 | 浙江国泰密封材料股份有限公司 | Low loss valve is with packing |
| CN205371794U (en) * | 2016-01-12 | 2016-07-06 | 广州安卓机械科技有限公司 | Valve rod combined packing that flexible graphite ring sum has this flexible graphite ring is sealed |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203463678U (en) | High-temperature high-pressure bidirectional metal hard sealing butterfly valve | |
| CN107061855A (en) | A kind of valve output shaft seal structure | |
| CN208535157U (en) | It is a kind of for sealing the composite seal device of liquid medium | |
| CN204459168U (en) | The general plug sealing ring of a kind of combination | |
| CN201539596U (en) | Sealing pair for hard sealed ball valve | |
| CN206708082U (en) | A kind of pump labyrinth type combination sealing | |
| CN101498383A (en) | Anti-oxidation high pressure seal stuffing box component | |
| CN206988639U (en) | Non-maintaining super reinforcement level reciprocating hermetic sleeve expansion joint | |
| CN202091543U (en) | Plug valve | |
| CN202597212U (en) | Water pump shaft seal structure | |
| CN205064851U (en) | Sinking roller mechanical seal detent | |
| CN212273242U (en) | Sliding type valve rod sealing device of gate valve of hot blast stove not prone to leakage | |
| CN106195517A (en) | A kind of quick blocking pipeline leakage point device | |
| CN203384402U (en) | Ultra-high-temperature hard seal ball valve | |
| CN208565548U (en) | A kind of copper pipe gasket of polytetrafluoroethylene (PTFE) material | |
| CN201487371U (en) | Anti-oxidation high-pressure sealing stuffing box component | |
| CN206522465U (en) | A kind of anticorrosive resistive connection crystalline substance switch ceramic ball valve | |
| CN105782474B (en) | Low temperature stop valve | |
| CN204628619U (en) | Hard seal wear-resistant fixing ball valve | |
| CN212745160U (en) | Tee fixed ball valve | |
| CN203559933U (en) | Novel steam seal | |
| CN219493045U (en) | Wear-resistant silicon carbide sealing ring | |
| CN214037099U (en) | Mechanical sealing device for reheat steam valve of nuclear power station | |
| CN215596457U (en) | Ceramic ball valve with built-in filler | |
| CN219994373U (en) | Prevent sealing member that fracture and corrosion resisting property are high |
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: 20170818 |