CN106704594A - Totally split type carbon ring sealing device - Google Patents
Totally split type carbon ring sealing device Download PDFInfo
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- CN106704594A CN106704594A CN201510469057.0A CN201510469057A CN106704594A CN 106704594 A CN106704594 A CN 106704594A CN 201510469057 A CN201510469057 A CN 201510469057A CN 106704594 A CN106704594 A CN 106704594A
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Abstract
The invention provides a totally split type carbon ring sealing device. The totally split type carbon ring sealing device comprises two units capable of being combined to form a complete sealing device through a connecting structure, wherein a sealing ring, a sealing cavity, a tension spring, a wave plate spring and a rotation-proof structure are arranged in each unit, the sealing ring is arranged in a groove in the sealing cavity, two split surfaces of the sealing ring and two split surfaces of the sealing cavity are located in the same plane, the tension spring is arranged between the outer ring surface of the sealing ring and the bottom of the groove in the sealing cavity, two ends of the tension spring are planes and are attached to the surface of a pit of the sealing cavity, a wave plate spring groove is formed in the groove side surface opposite to the non-sealing surface of the sealing ring, the sealing surface of the sealing ring is attached to the corresponding surface of the groove, and the rotation-proof structure for preventing the sealing ring from rotating is arranged between the sealing ring and the sealing cavity. According to the totally split type carbon ring sealing device, assembling on the scene can be performed conveniently and simply, containerize degree, assembling precision and safety of split type carbon ring sealing are greatly improved, and cost is obviously reduced.
Description
Technical field
The present invention relates to complete section fraction carbon ring seal device, it is particularly suitable for the shaft end seal of the various rotation class machines such as including compressor, expanding machine, seperator, pump, reactor.
Background technology
Carbon ring seal belongs to one kind of floating seal, because its sealing ring material is gained the name for carbon.Due to operating easy to maintenance, good airproof performance, carbon ring seal widely to be applied in the unit such as compressor, pump, steam turbine, blower fan, generator, turbine of the industries such as oil, chemical industry, metallurgy.
The primary structure of carbon ring seal includes ring packing cavity and sealing ring.There is annular groove in seal cavity, groove is approximate rectangular ring-shaped graphite sealing ring built with section, radially has a certain size gap between the internal diameter and annular sleeve or axle of graphite-seal ring.During work the sealing for realizing medium is in close contact by a side of sealing ring with a side of cavity interior annular groove.Carbocyclic ring can be carried out subdivision by carbon ring seal again according to in-site installation needs, form dissection type carbon ring seal.
The sealing ring of common dissection type carbon ring seal is typically circumferentially uniformly divided into three equal parts, per a both sides truncation surface between its center axis into 120 degree.During installation seal cavity and sealing ring be typically completely separate, it is necessary to be installed in certain sequence at the scene.First lower chamber is put into by the chamber of sealing unit shaft end, then in the annular groove placement part sealing ring of lower chamber, and the groove on the annular groove and sealing ring outer ring surface along lower chamber is penetrated extension spring by a side end face of lower chamber, another side end face passes, then completely load onto sealing ring and tighten up extension spring, finally close upper cavity.
There is problems with for the constituted mode of common dissection type carbon ring seal：
(1) the containerization low degree of sealed assemblage
It is mainly manifested in：Nearly forming all parts of dissection type carbon ring seal all needs to be assembled at the scene.Assembled in situ adds somewhat to mounting complexity, technical, cost, and assembly precision is difficult to ensure to a certain extent.
(2) the assembled in situ convenience of part and security reduction
It is mainly manifested in：1）Must be marked between sealing ring each several part, and be installed by mark check mark.Although technically there is no problem for this, the uncertainty in assembling process is increased, the security of sealing is reduced to a certain extent；2）Extension spring assembled in situ is inconvenient.Because extension spring is flexible body, scene is more inconvenient when being connected in cavity.
The content of the invention
The invention provides a kind of complete section fraction carbon ring seal device, sealing ring and cavity body structure are rationally designed again, to lift dissection type carbon ring seal containerization degree, assembly precision and security, and reduce its cost.
Complete section fraction carbon ring seal device of the invention, with two units that complete seal device is combined into by attachment structure, there is sealing ring, seal cavity, extension spring, wave plate spring and anti-rotation structure respectively in described two units, sealing ring is in the groove of seal cavity, and two split surfaces of sealing ring are generally aligned in the same plane with two split surfaces of seal cavity；
Between the bottom land of the groove of the outer ring surface and seal cavity of sealing ring, the two ends of extension spring fit in the pit surface of seal cavity for plane for the extension spring；
In the groove side of the groove relative with the non-tight face of sealing ring, the wave plate spring groove for placing wave plate spring is provided with, the sealing surface of sealing ring is fitted with the corresponding groove face of groove；
The anti-rotation structure for preventing sealing ring from rotating is provided between sealing ring and seal cavity.
The present invention is divided into two combined units by by complete section fraction carbon ring seal device, two respective composition structures of unit can be pre-assembled in workshop, it is each to form an independent packaging type entirety, the two units need only be respectively charged between the cavity of unit and axle at the scene, and part is attached repeatedly with screw thread, so avoid to carry out at the scene part one by one to install, so as to also considerably reduce the difficulty of site operation, the precision of assembling is greatly improved.
Preferably, two described units are two symmetrical structure bodies that split surface is axial plane, and the structure of two such unit is mutually symmetrical, can have efficiency higher when unit is assembled and connects two units, are less prone to error.
A kind of specific structure is, according to the design feature of sealing ring, anti-rotation structure can be set to be that one end is located in the space that the two ends of sealing ring are formed by sagittal plane and adjacent circumferential cylinder that the other end is fixed in the pin-shaped structure in the anti-rotation pin-and-hole of seal cavity.
On this basis, for the ease of connecting described two units, described attachment structure is the fastening structure of the corresponding boss setting in axially external end of two split surfaces of sealed cavity.
Further, boss is provided with the hole that may pass through the attachment structure, wherein the hole is unthreaded hole or screwed hole.
Further, the attachment structure is the threaded fastener being adapted with hole, for example, bolt, the screw etc. fixed by nut, or helicitic texture is provided with hole, and attachment structure directly carries out locking with the hole on boss.
Complete section fraction carbon ring seal device of the invention, conveniently, simply can be assembled at the scene, dissection type carbon ring seal containerization degree, assembly precision and security significantly be improved, while also significantly reducing cost.
Specific embodiment with reference to embodiments, is described in further detail again to the above of the invention.But this scope for being interpreted as above-mentioned theme of the invention should not be only limitted to following example.Without departing from the idea case in the present invention described above, the various replacements or change made according to ordinary skill knowledge and customary means, all should be included within the scope of the invention.
Brief description of the drawings
Fig. 1 is the structural representation of complete section fraction carbon ring seal device of the present invention.
Fig. 2 is the B-B sectional views of Fig. 1.
Fig. 3 is the partial enlarged drawing in A portions in Fig. 2.
Fig. 4 is the K direction views of structure shown in Fig. 1.
Fig. 5 is the axial arrangement appearance schematic diagram of sealing ring.
Fig. 6 is the N direction views of structure shown in Fig. 5.
Fig. 7 is the axial arrangement appearance schematic diagram of seal cavity.
Fig. 8 is the M direction views of structure shown in Fig. 7.
Specific embodiment
Complete section fraction carbon ring seal device of the invention, is two symmetrical cells of sealing device axial plane with complete seal device, and split surface is combined into by attachment structure 9 as shown in Figures 1 to 8.There is sealing ring 1, seal cavity 6, extension spring 4, wave plate spring 2, sealing ring 7 and anti-rotation structure 3 respectively in described two units, sealing ring 1 is in the groove 12 of seal cavity 6, and two split surfaces 17,18 and two split surfaces 10,11 of seal cavity 6 of sealing ring 1 are generally aligned in the same plane.
Between the bottom land of the groove 12 of the outer ring surface and seal cavity 6 of sealing ring 1, the two ends of extension spring 4 fit in the surface of pit 5 of seal cavity 6 for plane for the extension spring 4.
In the groove side of the groove 12 relative with the non-tight face 23 of sealing ring 1, the wave plate spring groove 13 for placing wave plate spring 2 is provided with, the sealing surface 24 of sealing ring 1 is fitted with the corresponding groove face of groove 12.
In the space that anti-rotation structure 3 is formed located at the two ends of sealing ring 1 for one end by sagittal plane 15 and adjacent circumferential cylinder 16, the other end is fixed in the pin-shaped structure in the anti-rotation pin-and-hole 14 of seal cavity 6.
The axially external end of two split surfaces 10,11 of seal cavity 6 is provided with boss 8, and boss 8 is provided with the screwed hole 22 that may pass through the attachment structure 9.Attachment structure 9 is the fastening structures such as the bolt adaptable with the screwed hole 22, is connected as one by attachment structure 9 and by two units with boss 8.After being installed in place, two split surfaces 10,11 of seal cavity 6, two split surfaces 17 with sealing ring 1,18, and the axis 25 5 of sealing device is coplanar.
Each constituent part of described two units can assembled in advance be together, each to form an independent packaging type entirety in the middle of workshop, the two units need only be respectively charged between the cavity of unit and axle at the scene, and be attached with attachment structure 9.Avoid and carry out at the scene part installation one by one, reduce the difficulty of site operation, the precision of assembling is preferably ensured.
The form of single-stage sealing has been pertained only in the present embodiment.In actual use, the total arrangement of the sealing device of the present embodiment could be arranged to multistage carbocyclic ring tandem seal as needed（It is more than two-stage）, the middle labyrinth of series connection band（It is more than two-stage）Deng, and also can further with other seals style composition combined labyrinth and carbon gland such as mechanical seal, labyrinth seal, those skilled in the art can be achieved according to said structure.
Claims (7)
1. complete section fraction carbon ring seal device, it is characterized by：With by attachment structure（9）Two units of complete seal device are combined into, there is sealing ring respectively in described two units（1）, seal cavity（6）, extension spring（4）, wave plate spring（2）And anti-rotation structure（3）, sealing ring（1）Located at seal cavity（6）Groove（12）In, and sealing ring（1）Two split surfaces（17,18）With seal cavity（6）Two split surfaces（10,11）It is generally aligned in the same plane；
The extension spring（4）Located at sealing ring（1）Outer ring surface and seal cavity（6）Groove（12）Bottom land between, extension spring（4）Two ends fit in seal cavity for plane（6）Pit（5）Surface；
With sealing ring（1）Non-tight face（23）The relative groove（12）Groove side, be provided with placement wave plate spring（2）Wave plate spring groove（13）, sealing ring（1）Sealing surface（24）With groove（12）Corresponding groove face laminating；
In sealing ring（1）With seal cavity（6）Between be provided with and prevent sealing ring（1）The anti-rotation structure of rotation（3）.
2. complete section fraction carbon ring seal device as claimed in claim 1, it is characterized by：Two described units are two symmetrical structure bodies that split surface is axial plane.
3. complete section fraction carbon ring seal device as claimed in claim 1, it is characterized by：Anti-rotation structure（3）For one end is located at sealing ring（1）Two ends by sagittal plane（15）With adjacent circumferential cylinder（16）In the space of formation, the other end is fixed in seal cavity（6）Anti-rotation pin-and-hole（14）Interior pin-shaped structure.
4. the complete section fraction carbon ring seal device as described in one of claims 1 to 3, it is characterized by：Described attachment structure（9）It is sealed cavity（6）Two split surfaces（10,11）The corresponding boss in axially external end（8）The fastening structure of setting.
5. complete section fraction carbon ring seal device as claimed in claim 4, it is characterized by：Boss（8）It is provided with and may pass through the attachment structure（9）Hole（22）.
6. complete section fraction carbon ring seal device as claimed in claim 5, it is characterized by：The hole（22）It is unthreaded hole or screwed hole.
7. complete section fraction carbon ring seal device as claimed in claim 5, it is characterized by：The attachment structure（9）It is and hole（22）Adaptable threaded fastener.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510469057.0A CN106704594B (en) | 2015-08-04 | 2015-08-04 | Complete section fraction carbon ring seal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510469057.0A CN106704594B (en) | 2015-08-04 | 2015-08-04 | Complete section fraction carbon ring seal device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106704594A true CN106704594A (en) | 2017-05-24 |
| CN106704594B CN106704594B (en) | 2018-11-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510469057.0A Active CN106704594B (en) | 2015-08-04 | 2015-08-04 | Complete section fraction carbon ring seal device |
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| CN (1) | CN106704594B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB345685A (en) * | 1930-01-02 | 1931-04-02 | British Metallic Packings Comp | Packing ring for piston rods and the like |
| US3333855A (en) * | 1964-09-22 | 1967-08-01 | Gits Bros Mfg Co | Floating controlled gap seal |
| JP2001289328A (en) * | 2000-04-10 | 2001-10-19 | Senshin Zairyo Riyo Gas Generator Kenkyusho:Kk | Sealing device |
| CN2498408Y (en) * | 2001-09-19 | 2002-07-03 | 左俊业 | Floated labyrinth spiral composite sealer |
| CN101749719B (en) * | 2010-02-10 | 2012-03-07 | 无锡华光锅炉股份有限公司 | Sealing device between boiler connecting rod and air chamber |
| CN102734461A (en) * | 2011-04-08 | 2012-10-17 | 上海超惠通风环保设备有限公司 | Low-temperature carboatomic ring sealing device |
| CN202690519U (en) * | 2012-07-25 | 2013-01-23 | 济南风机厂有限责任公司 | Elastic contact carbon ring sealing assembly of fan spindle |
| CN203395062U (en) * | 2013-06-25 | 2014-01-15 | 中国航空动力机械研究所 | Corrugated spring and floating-ring sealing device provided with same |
| CN204921991U (en) * | 2015-06-26 | 2015-12-30 | 成都一通密封有限公司 | Two lamella formula carbocycles are sealed |
| CN204942544U (en) * | 2015-08-04 | 2016-01-06 | 四川日机密封件股份有限公司 | Complete section fraction carbon ring seal device |
-
2015
- 2015-08-04 CN CN201510469057.0A patent/CN106704594B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB345685A (en) * | 1930-01-02 | 1931-04-02 | British Metallic Packings Comp | Packing ring for piston rods and the like |
| US3333855A (en) * | 1964-09-22 | 1967-08-01 | Gits Bros Mfg Co | Floating controlled gap seal |
| JP2001289328A (en) * | 2000-04-10 | 2001-10-19 | Senshin Zairyo Riyo Gas Generator Kenkyusho:Kk | Sealing device |
| CN2498408Y (en) * | 2001-09-19 | 2002-07-03 | 左俊业 | Floated labyrinth spiral composite sealer |
| CN101749719B (en) * | 2010-02-10 | 2012-03-07 | 无锡华光锅炉股份有限公司 | Sealing device between boiler connecting rod and air chamber |
| CN102734461A (en) * | 2011-04-08 | 2012-10-17 | 上海超惠通风环保设备有限公司 | Low-temperature carboatomic ring sealing device |
| CN202690519U (en) * | 2012-07-25 | 2013-01-23 | 济南风机厂有限责任公司 | Elastic contact carbon ring sealing assembly of fan spindle |
| CN203395062U (en) * | 2013-06-25 | 2014-01-15 | 中国航空动力机械研究所 | Corrugated spring and floating-ring sealing device provided with same |
| CN204921991U (en) * | 2015-06-26 | 2015-12-30 | 成都一通密封有限公司 | Two lamella formula carbocycles are sealed |
| CN204942544U (en) * | 2015-08-04 | 2016-01-06 | 四川日机密封件股份有限公司 | Complete section fraction carbon ring seal device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106704594B (en) | 2018-11-27 |
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Address after: 610045 Sichuan city of Chengdu province Wuhou District Vuko Xisi Road No. 8 Patentee after: Zhongmi Holding Co., Ltd Address before: 610045 Sichuan city of Chengdu province Wuhou District Vuko Xisi Road No. 8 Patentee before: Sichuan Sunny Seal Co., Ltd. |