CN201671662U - Sealing structure for turbine expander - Google Patents
Sealing structure for turbine expander Download PDFInfo
- Publication number
- CN201671662U CN201671662U CN2010201716904U CN201020171690U CN201671662U CN 201671662 U CN201671662 U CN 201671662U CN 2010201716904 U CN2010201716904 U CN 2010201716904U CN 201020171690 U CN201020171690 U CN 201020171690U CN 201671662 U CN201671662 U CN 201671662U
- Authority
- CN
- China
- Prior art keywords
- turbo
- sealing structure
- expander
- base sleeve
- sealing
- 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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- Turbine Rotor Nozzle Sealing (AREA)
Abstract
A sealing structure for a turbine expander comprises a base sleeve made of Babbitt alloy and sleeved on a rotor shaft. A metal supporter is nested on the outer side of the base sleeve, seal air holes are evenly distributed on the base sleeve and the metal supporter, and a groove structure is arranged inside the metal supporter. The sealing structure has simple structure, lower manufacturing cost, convenience for operation, reliable structural running and low maintenance expense, and is applicable to gas sealing for various axial rotary machines.
Description
Technical field
The utility model relates to a kind of turbo-expander sealing configuration.
Background technique
Turbo-expander is that air separation equipment and rock gas (petroleum gas) liquefaction separation equipment and low temperature breaking equipment etc. obtain the necessary crucial portion of cold machine, is the heart that guarantees complete equipment stable operation.Its cardinal principle is to utilize the gas that certain pressure is arranged to carry out adiabatic expansion externally acting and the interior energy of spent gas itself in turbo-expander, thereby gas self is cooled off consumingly and reaches the purpose of refrigeration.As shown in Figure 1, 2, direct sheathed carbonaceous support 2 on the rotor shaft 1 of present turbo-expander, this carbon body sealing not only costs an arm and a leg, and behind the long-play, can cause the fracture of excesssive gap and broach, exhaust pressure does not reach designing requirement, need change.
The model utility content
The utility model purpose is to provide a kind of easy to operate, turbo-expander sealing configuration that cost is lower.
To achieve these goals, the utility model adopts following technological scheme: the turbo-expander sealing configuration comprises the base cover of being made by Babbitt that is set on the rotor shaft, the nested metal support of establishing in the outside of base cover.
Described base cover and metal support are provided with uniform sealing pore.
Described metal support inside is provided with groove structure.
The utility model is simple in structure, cost is lower, and is easy to operate, and structure is reliable, and maintenance cost is low, and remarkable in economical benefits is applicable to the application of all kinds of axial rotating machinery gas seals aspect.
Description of drawings
Fig. 1 is the sealing configuration 1 of prior art;
Fig. 2 is the sealing configuration 2 of prior art;
Fig. 3 is a sealing configuration 1 of the present utility model;
Fig. 4 is a sealing configuration 2 of the present utility model.
Embodiment
Embodiment: shown in Fig. 3,4, the turbo-expander sealing configuration, comprise that the base of being made by Babbitt that is set on the rotor shaft 1 overlaps 3, be beneficial to antifriction, the nested metal support 4 of establishing in the outside of base cover 3, base cover 3 and metal support 4 are provided with uniform sealing pore, and metal support 4 inside are provided with groove structure.
This structure has solved existing expansion unit carbonaceous sealed material requirement height, problems such as import price height, and simple in structure, easy to operate, structure is reliable, and maintenance cost is low, and remarkable in economical benefits is applicable to the application of all kinds of axial rotating machinery gas seals aspect.
Claims (3)
1. turbo-expander sealing configuration is characterized in that: comprise the base cover of being made by Babbitt that is set on the rotor shaft, the nested metal support of establishing in the outside of base cover.
2. turbo-expander sealing configuration according to claim 1 is characterized in that: described base cover and metal support are provided with uniform sealing pore.
3. turbo-expander sealing configuration according to claim 1 and 2 is characterized in that: described metal support inside is provided with groove structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201716904U CN201671662U (en) | 2010-04-27 | 2010-04-27 | Sealing structure for turbine expander |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201716904U CN201671662U (en) | 2010-04-27 | 2010-04-27 | Sealing structure for turbine expander |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201671662U true CN201671662U (en) | 2010-12-15 |
Family
ID=43329074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201716904U Expired - Fee Related CN201671662U (en) | 2010-04-27 | 2010-04-27 | Sealing structure for turbine expander |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201671662U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104343473A (en) * | 2014-09-02 | 2015-02-11 | 华中科技大学 | Shaft end seal device for organic working medium radial-inward-flow turbine |
| US10822983B2 (en) * | 2018-02-06 | 2020-11-03 | Raytheon Technologies Corportation | Hydrostatic seal with abradable teeth for gas turbine engine |
-
2010
- 2010-04-27 CN CN2010201716904U patent/CN201671662U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104343473A (en) * | 2014-09-02 | 2015-02-11 | 华中科技大学 | Shaft end seal device for organic working medium radial-inward-flow turbine |
| CN104343473B (en) * | 2014-09-02 | 2015-09-09 | 华中科技大学 | A kind of shaft end seal device for organic working medium radial-inward-flow turbine |
| US10822983B2 (en) * | 2018-02-06 | 2020-11-03 | Raytheon Technologies Corportation | Hydrostatic seal with abradable teeth for gas turbine engine |
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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 |
Granted publication date: 20101215 Termination date: 20150427 |
|
| EXPY | Termination of patent right or utility model |