CN202284642U - Bidirectional graphite carbon ring seal - Google Patents
Bidirectional graphite carbon ring seal Download PDFInfo
- Publication number
- CN202284642U CN202284642U CN2011203656353U CN201120365635U CN202284642U CN 202284642 U CN202284642 U CN 202284642U CN 2011203656353 U CN2011203656353 U CN 2011203656353U CN 201120365635 U CN201120365635 U CN 201120365635U CN 202284642 U CN202284642 U CN 202284642U
- Authority
- CN
- China
- Prior art keywords
- seal
- ring
- sealing
- bidirectional
- spring
- 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
- 229910002804 graphite Inorganic materials 0.000 title claims abstract description 13
- 239000010439 graphite Substances 0.000 title claims abstract description 13
- 230000002457 bidirectional effect Effects 0.000 title abstract 4
- 238000007789 sealing Methods 0.000 claims abstract description 30
- 238000005516 engineering process Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000003068 static effect Effects 0.000 abstract description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- 239000002131 composite material Substances 0.000 abstract 1
- 231100000331 toxic Toxicity 0.000 abstract 1
- 230000002588 toxic effect Effects 0.000 abstract 1
- 125000002837 carbocyclic group Chemical group 0.000 description 14
- 230000000694 effects Effects 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 241001515806 Stictis Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002153 concerted effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
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- Sealing Devices (AREA)
Abstract
The utility model discloses a bidirectional graphite carbon ring seal for sealing an axle end of a high-voltage, toxic and harmful gas device. The bidirectional graphite carbon ring seal comprises a valve combining sealing round ring formed by fixedly connecting valves by a spring on an excircle ring groove, wherein the ring groove is an inclined arc ring groove symmetrically inclined towards the end surface of a sealing body. The spring pretightening force fixedly connected on the excircle inclined ring grooves of the seal carbon ring is decomposed into an axial component and a radial component by the novel structure of the non-regular inclined ring groove. The radial component ensures the radial pressure of the spring closely adhered on the valve seal ring. The composite force F formed by the axial component F axle generated by the spring pretightening force and the axial pressure F axle reacts on one side end surface of the sealing body by the inclined surface of the ring groove and a no-clearance sealing environment is formed on the adhering surface under the axial force and whether the sealing body is at the static state or dynamic state, the no-clearance sealing environment is always available and the manufacture technology of the bidirectional graphite carbon ring seal is as simple as the manufacture technology of the common seal.
Description
Technical field
The utility model relates to a kind of carbocyclic ring sealing that is mainly used in the mechanical seal field, especially can be used in the carbocyclic ring sealing of high pressure, poisonous, harmful gas equipment shaft end seal.
Background technique
The carbocyclic ring that is used for sealing gas in the existing technology; Be mainly used in the sealing of low parameter, common gases; This seal ring is made up of three distinguish of common trisection circumference usually, and its structure is as shown in Figure 3, and three lobes that the sealing ring separates are fixed together through the spring on the excircle.Owing to be the curve bath of rule on the excircle; The pretightening force that spring is given has only radial force, and all the other directions do not have decomposing force, is the noncontact seal carbocyclic ring on the common trisection circumference distinguish ring stricti jurise; Also be referred to as floating ring, this distinguish ring can only play the effect of radial seal.When the carbocyclic ring of this structure is sealed in static state because and axle between gapped existence; And between two sides of seal ring and the seal steel part certain interval is arranged also; So all leakage can be arranged always, have only when the distinguish carbocyclic ring runs to certain speed, the gas through axial slits can be in the clearance groove between carbocyclic ring seal ring and the axle the local eddy current that produces; Form vapour lock, reach certain throttling and sealing effect.But this structure carbocyclic ring seal ring bi-side and gap between the seal steel part radially can not get effective seal, leaks always to exist.
Summary of the invention
The purpose of the utility model is the deficiency to above-mentioned existing technology distinguish carbocyclic ring, and the two-way graphite carbocyclic ring sealing control gaseous that provides a kind of and have radially, axially can effectively seal leaks, and reaches the novel carbocyclic ring sealing of good sealing effect.
The technological scheme that its technical problem of the utility model solution is taked is: a kind of two-way graphite carbocyclic ring sealing; Have one and connect firmly distinguish combination seal annulus together through excircle annular groove upper spring; It is characterized in that described annular groove is the inclined-plane circular arc annular groove towards the seal end slope of a symmetry.
The utility model has following beneficial effect than existing technology.
The utility model is through the inclined-plane circular arc annular groove towards the seal end slope, and the sealing carbocyclic ring of this inclined-plane circular arc annular groove new structure is decomposed into axial thrust load and radial component with the initial tension of spring that connects firmly on sealing carbocyclic ring excircle arc groove.Radial component has guaranteed that spring is close to the radial pressure of distinguish seal ring always, has reached the radial seal effect with conventional seals ring same effect.The F that makes a concerted effort that axial thrust load F axle that initial tension of spring produces and radial pressure F directly form is through a counter side end face of making in the seal steel part, circular arc annular groove inclined-plane; Simultaneously through the anti-spring axial pressure of doing in circular arc annular groove inclined-plane; Under the effect of this axial force, side of seal ring fits tightly on the seal steel part, and this faying surface has just formed a gapless sealed environment; More valuable is; This gap-free sealed environment is under static state or the dynamic situation at seal, and all equally effective, the sealing carbocyclic ring of this spline structure has just played good sealing effect.And its manufacturing process is the same with the conventional seals ring simple.
Description of drawings
Fig. 1 is the plan view of the two-way graphite carbocyclic ring sealing of the utility model.
Fig. 2 is the side partial sectional view that Fig. 1 and seal are fitted.
Fig. 3 is an existing technology conventional seals ring radial cross-section.
Embodiment
In the two-way graphite carbocyclic ring sealing most preferred embodiment that Fig. 1, Fig. 2 describe; Two-way graphite carbocyclic ring sealing; Have one and connect firmly distinguish combination seal annulus together through excircle annular groove upper spring 2; Sealing ring 1 can be to form with three distinguish 4 of the essentially identical trisection circumference of existing technology structural type, and described annular groove is the inclined-plane circular arc annular groove 5 towards seal 3 end slopes of a symmetry.Inclined-plane circular arc annular groove 5 can the inclined-plane and the junction plane of arc surface, can be the junction plane of inclined-plane and dihedral also, is that spring 2 connects firmly on sealing carbocyclic ring excircle inclined-plane circular arc annular groove, is close to distinguish seal ring 1.
Claims (3)
1. two-way graphite carbocyclic ring sealing has one and connects firmly distinguish combination seal annulus together through excircle annular groove upper spring, it is characterized in that, described annular groove be one symmetrically towards the inclined-plane circular arc annular groove of seal end slope.
2. two-way graphite carbocyclic ring sealing as claimed in claim 1 is characterized in that described inclined-plane circular arc annular groove is the junction plane of inclined-plane and arc surface.
3. two-way graphite carbocyclic ring sealing as claimed in claim 1 is characterized in that described inclined-plane circular arc annular groove is the junction plane of inclined-plane and dihedral.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203656353U CN202284642U (en) | 2011-09-28 | 2011-09-28 | Bidirectional graphite carbon ring seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203656353U CN202284642U (en) | 2011-09-28 | 2011-09-28 | Bidirectional graphite carbon ring seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202284642U true CN202284642U (en) | 2012-06-27 |
Family
ID=46296164
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203656353U Expired - Fee Related CN202284642U (en) | 2011-09-28 | 2011-09-28 | Bidirectional graphite carbon ring seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202284642U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603803A (en) * | 2013-12-09 | 2014-02-26 | 济南海屹流体技术有限公司 | Water vapor screw compressor shaft seal structure |
-
2011
- 2011-09-28 CN CN2011203656353U patent/CN202284642U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103603803A (en) * | 2013-12-09 | 2014-02-26 | 济南海屹流体技术有限公司 | Water vapor screw compressor shaft seal structure |
| CN103603803B (en) * | 2013-12-09 | 2016-03-02 | 济南海屹流体技术有限公司 | A kind of water vapor screw compressor shaft seal structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20161013 Address after: 610000, Chenghua District, Chengdu, Longtan City Industrial Park, Cheng Cheng Road, 6, multi headquarters, No. 1, 9, 2, 1-3, 1 floor, No., Sichuan Patentee after: Chengdu Zhongchao Carbon Science & Technology Co.,Ltd. Address before: 610000 Sichuan, Chengdu, Wuhou District, min Road, No. 3, building 4, unit 6, building 2, No. 88 Patentee before: Hou Yujie |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120627 Termination date: 20180928 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |