CN203717424U - Turbine cylinder sealing structure - Google Patents
Turbine cylinder sealing structure Download PDFInfo
- Publication number
- CN203717424U CN203717424U CN201420091515.2U CN201420091515U CN203717424U CN 203717424 U CN203717424 U CN 203717424U CN 201420091515 U CN201420091515 U CN 201420091515U CN 203717424 U CN203717424 U CN 203717424U
- Authority
- CN
- China
- Prior art keywords
- lower cover
- seal
- cylinder body
- upper cover
- groove
- 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
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Abstract
A turbine cylinder sealing structure comprises a cylinder body, a seal strip, a dry running gas seal inlet pipeline, a mixed gas safety exhaust pipeline and bolts, wherein the cylinder body comprises an upper cover and a lower cover which are hermetically connected with each other, a groove is formed in the center of the seal surface of the upper cover, and two mounting holes are formed in the lower cover, and corresponds to the two sides of the groove of the seal surface of the upper cover; the seal strip is embedded in the groove of the seal surface of the upper cover of the cylinder body; the dry running gas seal inlet pipeline is inserted in one mounting hole of the lower cover of the cylinder body, and the outlet end of the dry running gas seal inlet pipeline is arranged on the seal surface of the lower cover; the mixed gas safety exhaust pipeline is inserted in the other mounting hole of the lower cover of the cylinder body, and the outlet end of the mixed gas safety exhaust pipeline is arranged on the seal surface of the lower cover; the two sides of the upper cover and the lower cover of the cylinder body are connected by the bolts. A full seal state is realized by the pre-tightening bolts through the seal strip and the utilization of a fluid dynamic pressure effect which is produced when equipment run in a dry gas non-contact state, so that hidden incomplete seal danger which is caused by the single use of water glass and hard seal is overcome. Meanwhile, hidden safety danger which is caused by high pressure and high-purity oxygen leakage is eliminated.
Description
Technical field
The utility model relates to turbine engine sealing technique, particularly a kind of turbine engine air cylinder leakproof structure.
Background technique
For oxygen turbocompressor.Compressor design flow: 14500M3/H; High-pressure cylinder operation pressure: 2.9Mpa; Casing temperature :≤160 DEG C.In high-pressure cylinder, front cover is sealed into hard sealing, since installing and using, in high-pressure cylinder, front cover sealing exists and leaks all the time, adopts " water glass " as sealed filling material, still, when operation, have all the time leakage phenomenon, and with operation period continuity leakage area increase gradually, leakage rate is increasing.Long-term operation and the industrialness production of oxygen leakage to equipment brings great potential safety hazard.Become the hard nut to crack in production, maintenance.Sealing surface local leakage,, in design, manufacture, there is defect in its main cause: this machine is the old product in 80-90 age, and the machining accuracy of two sealing surfaces does not reach hard seal request.But, after product export, just formalize, if increasing pad or carry out gold machining again, middle front cover all can affect physical dimension and the geometrical shape of upper and lower enclosure, also can affect the design discharge of compressor.Be difficult to accomplish to stop a leak completely as the pretightening force of sealed filling material and bolt depending merely on employing " water glass " before this.
Model utility content
The utility model object is to design a kind of turbine engine air cylinder leakproof structure, enhanced leaktightness performance.
For achieving the above object, the technical solution of the utility model is:
A kind of turbine engine air cylinder leakproof structure, comprising: cylinder body, comprise the upper and lower cover being mutually tightly connected, and upper cover sealing surface central authorities are provided with groove, and two mounting holes are established in the both sides of the corresponding upper cover sealing surface of lower cover groove; Stamping Steel Ribbon, is embedded in described cylinder cover sealing surface groove; Dry gas seals inlet pipeline, is inserted in described cylinder body lower cover one mounting hole, and its outlet end is positioned at lower cover sealing surface; Mixed gas safety exhaust pipeline, is inserted in described another mounting hole of cylinder body lower cover, and its outlet end is positioned at lower cover sealing surface.
Further Stamping Steel Ribbon is O shape Stamping Steel Ribbon.
Further cylinder body upper and lower cover both sides are bolted.
In the utility model running, by tools for bolts ' pretension, because groove is embedded in Stamping Steel Ribbon, and dry gas enters the gap between upper cover and lower cover by dry gas seals inlet pipeline, mixed gas is discharged by mixed gas safety exhaust pipeline, the hydrodynamic effect producing in the time that equipment operation moves has reached completely sealing, has overcome simple use " water glass " and hard sealing and has brought and can not seal hidden danger completely; Stopped the potential safety hazard that the leakage of high pressure, high-purity oxygen produces simultaneously.
Brief description of the drawings
Fig. 1 is the utility model embodiment's structural representation;
Fig. 2 is that the utility model embodiment uses phase diagram.
Embodiment
Referring to Fig. 1 and Fig. 2, a kind of turbine engine air cylinder leakproof structure that the utility model provides, comprising: cylinder body, comprises the upper cover 100 and the lower cover 200 that are mutually tightly connected, upper cover 100 sealing surface central authorities are provided with groove 1, and two mounting holes are established in the both sides of the corresponding upper cover 100 sealing surface grooves 1 of lower cover 200; Stamping Steel Ribbon 2, is embedded in described cylinder cover 100 sealing surface grooves 1; Dry gas seals inlet pipeline 3, is inserted in described cylinder body lower cover 200 1 mounting holes, and its outlet end is positioned at lower cover 200 sealing surfaces; Mixed gas safety exhaust pipeline 4, is inserted in described cylinder body lower cover 200 another mounting holes, and its outlet end is positioned at lower cover 200 sealing surfaces; Described Stamping Steel Ribbon 2 is O shape Stamping Steel Ribbon; Described cylinder cover 100 and lower cover 200 both sides connect by bolt 5.
The device that the utility model provides adopts pneumatic static seal form to reach cylinder and seals completely.By bolt 5 by sealing surface 100 and sealing surface 200 pretensions, because groove 1 is embedded in Stamping Steel Ribbon 2, and dry gas enters the gap between upper cover 100 and lower cover 200 by dry gas seals import 3 pipelines, mixed gas is discharged by mixed gas safety exhaust pipeline 4, utilize under dry gas contactless state, the hydrodynamic effect producing in the time that equipment operation moves has reached completely sealing, has overcome simple use " water glass " and hard sealing and has brought and can not seal hidden danger completely; Stopped the potential safety hazard that the leakage of high pressure, high-purity oxygen produces simultaneously.
Claims (3)
1. a turbine engine air cylinder leakproof structure, is characterized in that, comprising:
Cylinder body, comprises the upper and lower cover being mutually tightly connected, and upper cover sealing surface central authorities are provided with groove, and two mounting holes are established in the both sides of the corresponding upper cover sealing surface of lower cover groove;
Stamping Steel Ribbon, is embedded in described cylinder cover sealing surface groove;
Dry gas seals inlet pipeline, is inserted in described cylinder body lower cover one mounting hole, and its outlet end is positioned at lower cover sealing surface;
Mixed gas safety exhaust pipeline, is inserted in described another mounting hole of cylinder body lower cover, and its outlet end is positioned at lower cover sealing surface.
2. turbine engine air cylinder leakproof structure as claimed in claim 1, is characterized in that, described Stamping Steel Ribbon is O shape Stamping Steel Ribbon.
3. turbine engine air cylinder leakproof structure as claimed in claim 1, is characterized in that, described cylinder body upper and lower cover both sides are bolted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420091515.2U CN203717424U (en) | 2014-02-28 | 2014-02-28 | Turbine cylinder sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420091515.2U CN203717424U (en) | 2014-02-28 | 2014-02-28 | Turbine cylinder sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203717424U true CN203717424U (en) | 2014-07-16 |
Family
ID=51156582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420091515.2U Expired - Fee Related CN203717424U (en) | 2014-02-28 | 2014-02-28 | Turbine cylinder sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203717424U (en) |
-
2014
- 2014-02-28 CN CN201420091515.2U patent/CN203717424U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140716 Termination date: 20200228 |