CN202165612U - Nitrogen sealing structure of coal gas pressurizing machine - Google Patents
Nitrogen sealing structure of coal gas pressurizing machine Download PDFInfo
- Publication number
- CN202165612U CN202165612U CN2011202785395U CN201120278539U CN202165612U CN 202165612 U CN202165612 U CN 202165612U CN 2011202785395 U CN2011202785395 U CN 2011202785395U CN 201120278539 U CN201120278539 U CN 201120278539U CN 202165612 U CN202165612 U CN 202165612U
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- Prior art keywords
- coal gas
- nitrogen
- annular groove
- gas compressor
- sealing structure
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- 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.)
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- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model relates to a nitrogen sealing structure of a coal gas pressurizing machine. A labyrinth cover, a coal gas outlet, a coal gas inlet, a nitrogen outlet, a nitrogen inlet and a power shaft are arranged on the coal gas pressurizing machine which achieves seal through the labyrinth cover and the power shaft. An annular groove is arranged on the inner wall of the labyrinth cover, and stationary rings fixed with the shaft are arranged in the annular groove at intervals. The nitrogen sealing structure of the coal gas pressurizing machine is simple in structure, safe and reliable.
Description
Technical field
The utility model relates to a kind of gas compressor, particularly the nitrogen-sealed structure of gas compressor.
Background technique
Common gas compressor (like Shan drum AI300-1.23 moulded coal gas press) is installed sealing structure of shaft end and is adopted floating seal, and the sealing part is easy to generate wearing and tearing in the equipment using process, causes coal gas to leak, and constitutes bigger threat for ordinary production and site safety.
Summary of the invention
In order to overcome the shortcoming of existing technology, the utility model provides a kind of gas compressor nitrogen-sealed structure, and it is simple in structure, and is safe and reliable.
The technological scheme that its technical problem of the utility model solution is taked is: labyrinth lid, coal gas entry and exit, nitrogen entry and exit and line shaft are arranged on the gas compressor; Gas compressor is through labyrinth lid and line shaft sealing; On the inwall of labyrinth lid annular groove is arranged; There is stationary ring on annular groove internal clearance ground, and stationary ring is fixing with axle.
The structure of described annular groove and stationary ring has three groups, every group from left to right radial dimension dwindle gradually.
The utility model is simple in structure, and is safe and reliable.Because the structure of three groups of annular grooves and stationary ring radial dimension is from left to right dwindled gradually, form the sealing weir, can strengthen sealing effect like this, can obtain comparatively stable non-contact type air film simultaneously again.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Accompanying drawing is the utility model schematic representation.
Embodiment
Shown in accompanying drawing; Labyrinth lid 8, coal gas entry and exit 2,1, nitrogen entry and exit 9,4 and line shaft 7 are arranged on the gas compressor 3, and gas compressor 3 has annular groove 6 through labyrinth lid 8 and line shaft 7 sealings on the inwall of labyrinth lid 8; There is stationary ring 5 on annular groove 6 internal clearance ground, and stationary ring 5 is fixing with axle.
The structure of described annular groove 6 and stationary ring 5 has three groups, every group from left to right radial dimension dwindle gradually.
Claims (2)
1. gas compressor nitrogen-sealed structure; Comprise labyrinth lid (8), coal gas entry and exit (2,1), nitrogen entry and exit (9,4) and line shaft (7) are arranged on the gas compressor (3); Gas compressor (3) is through labyrinth lid (8) and line shaft (7) sealing; It is characterized in that: on the inwall of labyrinth lid (8) annular groove (6) is arranged, there is stationary ring (5) on annular groove (6) internal clearance ground, and stationary ring (5) is fixing with axle.
2. gas compressor nitrogen-sealed structure according to claim 1 is characterized in that: the structure of described annular groove (6) and stationary ring (5) has three groups, every group from left to right radial dimension dwindle gradually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202785395U CN202165612U (en) | 2011-08-02 | 2011-08-02 | Nitrogen sealing structure of coal gas pressurizing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202785395U CN202165612U (en) | 2011-08-02 | 2011-08-02 | Nitrogen sealing structure of coal gas pressurizing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202165612U true CN202165612U (en) | 2012-03-14 |
Family
ID=45801438
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202785395U Expired - Lifetime CN202165612U (en) | 2011-08-02 | 2011-08-02 | Nitrogen sealing structure of coal gas pressurizing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202165612U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291638A (en) * | 2013-06-09 | 2013-09-11 | 山西太钢不锈钢股份有限公司 | Method for protecting standby state of pressurizing machine |
| CN111981129A (en) * | 2020-07-08 | 2020-11-24 | 新兴铸管股份有限公司 | Mechanical sealing device of pressurizing machine |
-
2011
- 2011-08-02 CN CN2011202785395U patent/CN202165612U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291638A (en) * | 2013-06-09 | 2013-09-11 | 山西太钢不锈钢股份有限公司 | Method for protecting standby state of pressurizing machine |
| CN111981129A (en) * | 2020-07-08 | 2020-11-24 | 新兴铸管股份有限公司 | Mechanical sealing device of pressurizing machine |
| CN111981129B (en) * | 2020-07-08 | 2022-07-12 | 新兴铸管股份有限公司 | Mechanical sealing device of pressurizing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120314 |
|
| CX01 | Expiry of patent term |