CN203067800U - Sealing device for negative-pressure butterfly valve for recovering converter gas - Google Patents
Sealing device for negative-pressure butterfly valve for recovering converter gas Download PDFInfo
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- CN203067800U CN203067800U CN 201320067501 CN201320067501U CN203067800U CN 203067800 U CN203067800 U CN 203067800U CN 201320067501 CN201320067501 CN 201320067501 CN 201320067501 U CN201320067501 U CN 201320067501U CN 203067800 U CN203067800 U CN 203067800U
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- valve
- nitrogen gas
- sealing
- sealing device
- nitrogen
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Abstract
The utility model belongs to the technical field of valve body sealing and particularly relates to a sealing device for a negative-pressure butterfly valve for recovering converter gas. The sealing device comprises a valve body of the negative-pressure valve, a butterfly plate, a valve shaft and a driving device. The sealing device is characterized in that a nitrogen gas sealing device and packing sealing devices arranged on two sides of the nitrogen gas sealing device are arranged at the shaft end of the valve shaft, wherein the nitrogen gas sealing device consists of a nitrogen gas sealing ring sheathed at the shaft end of the valve shaft, and a nitrogen gas conveying pipe and an exhaust opening which are connected with the nitrogen gas sealing ring as well as a control valve arranged on the nitrogen gas conveying pipe. According to the sealing device disclosed by the utility model, a composite sealing mode of the nitrogen gas sealing device and graphite packing sealing is adopted at the shaft end of the valve shaft of the negative-pressure butterfly valve, and thus the sealing reliability is enhanced.
Description
Technical field
The utility model belongs to the valve seal technical field, especially relates to a kind of seal arrangement for RECOVERY OF CONVERTER GAS negative pressure butterfly valve.
Background technique
The negative pressure butterfly valve is applicable to mainly in the gaspipe line system that as cut-out or the adjusting of coal gas of converter medium, its working principle is that transmission device drive valve shaft makes valve plate produce 90
oRotation is to reach the purpose of valve opening and closing.Traditional valve shaft end seal all adopts the asbestos packing sealing, and valve because the rotation of valve shaft makes the asbestos material of filling produce wearing and tearing or deterioration phenomenon easily, makes the axial end of valve poorly sealed in opening-closing process, causes unnecessary accident to leak the coal gas.
Summary of the invention
The purpose of this utility model provides a kind of simple in structure, good seal performance, the safe and reliable seal arrangement that is used for RECOVERY OF CONVERTER GAS negative pressure butterfly valve.
The purpose of this utility model realizes by following technical proposals:
Seal arrangement for RECOVERY OF CONVERTER GAS negative pressure butterfly valve of the present utility model, comprise negative pressure butterfly valve body, butterfly plate, valve shaft, transmission device, it is characterized in that being provided with nitrogen gas seal equipment and the stuffing seal that is arranged on these nitrogen gas seal equipment both sides in the axial end of described valve shaft, described nitrogen gas seal equipment is by the nitrogen-sealed ring that is socketed in described valve shaft axle head, the nitrogen delivery pipe and the relief opening that are connected of nitrogen-sealed ring therewith, the control valve that is arranged on the described nitrogen delivery pipe is formed.
Described stuffing seal is the graphite packing seal arrangement.
Advantage of the present utility model:
Because the utility model in the composite seal mode that negative pressure butterfly valve shaft axial end adopts nitrogen gas seal equipment and graphite packing to seal, has increased the reliability of sealing.In nitrogen gas seal equipment, feed the nitrogen that is higher than the coal gas pressure medium, make the complete and ambient air isolation of medium in the pipeline.The graphite packing sealing has good self lubricity and wear resistance as a kind of sealing compensation.The combination of two kinds of sealing means makes negative pressure butterfly valve two axial ends place reach the coal gas zero leakage fully, and the use of valve is more safe and reliable.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the I portion zoomed-in view of the utility model Fig. 1.
Embodiment
Further specify embodiment of the present utility model below in conjunction with accompanying drawing.
As illustrated in fig. 1 and 2, a kind of seal arrangement for RECOVERY OF CONVERTER GAS negative pressure butterfly valve of the present utility model, comprise negative pressure butterfly valve body 7, butterfly plate 8, valve shaft 2, transmission device 1, it is characterized in that being provided with nitrogen gas seal equipment and the stuffing seal 3 that is arranged on these nitrogen gas seal equipment both sides in the axial end of described valve shaft 2, described nitrogen gas seal equipment is by the nitrogen-sealed ring 4 that is socketed in described valve shaft 2 axle heads, the nitrogen delivery pipe 5 and the relief opening 9 that are connected of nitrogen-sealed ring 4 therewith, the control valve 6 that is arranged on the described nitrogen delivery pipe 5 is formed.
Graphite has good self lubricity and wear resistance, thereby has reduced filler wearing and tearing in use, so described stuffing seal 3 is the graphite packing seal arrangement.
Because the utility model in the composite seal mode that negative pressure butterfly valve shaft 2 axial end adopt nitrogen gas seal equipment and graphite packing to seal, has increased the reliability of sealing.Nitrogen is as a kind of inert gas, it is cheap and harmless, feeds the nitrogen that is higher than the coal gas pressure medium to the nitrogen delivery pipe of nitrogen gas seal equipment, and nitrogen enters in the annular housing of nitrogen-sealed ring 4, make the complete and ambient air isolation of medium in the pipeline, reach sealing effect.The graphite packing sealing has good self lubricity as a kind of sealing compensation and wear resistance can replace original asbestos material.The combination of two kinds of sealing means makes negative pressure butterfly valve two axial ends place reach the coal gas zero leakage fully, and the use of valve is more safe and reliable.The negative pressure butterfly valve only need cut out the control valve 6 on the nitrogen delivery pipe 5, and open relief opening 9 when maintenance, can begin maintenance after nitrogen is drained, and maintenance and regular maintenance are simple and convenient.
Claims (2)
1. seal arrangement that is used for RECOVERY OF CONVERTER GAS negative pressure butterfly valve, comprise negative pressure butterfly valve body, butterfly plate, valve shaft, transmission device, it is characterized in that being provided with nitrogen gas seal equipment and the stuffing seal that is arranged on these nitrogen gas seal equipment both sides in the axial end of described valve shaft, described nitrogen gas seal equipment is by the nitrogen-sealed ring that is socketed in described valve shaft axle head, the nitrogen delivery pipe and the relief opening that are connected of nitrogen-sealed ring therewith, the control valve that is arranged on the described nitrogen delivery pipe is formed.
2. the seal arrangement for RECOVERY OF CONVERTER GAS negative pressure butterfly valve according to claim 1 is characterized in that described stuffing seal is the graphite packing seal arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320067501 CN203067800U (en) | 2013-02-06 | 2013-02-06 | Sealing device for negative-pressure butterfly valve for recovering converter gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320067501 CN203067800U (en) | 2013-02-06 | 2013-02-06 | Sealing device for negative-pressure butterfly valve for recovering converter gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203067800U true CN203067800U (en) | 2013-07-17 |
Family
ID=48766586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320067501 Expired - Fee Related CN203067800U (en) | 2013-02-06 | 2013-02-06 | Sealing device for negative-pressure butterfly valve for recovering converter gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203067800U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104565402A (en) * | 2013-10-29 | 2015-04-29 | 安徽红星阀门有限公司 | Valve |
| CN107246481A (en) * | 2017-08-14 | 2017-10-13 | 维珂瑞（北京）环境科技有限公司 | A kind of non-maintaining hermetically sealed cut-out butterfly valve |
| CN107255171A (en) * | 2017-08-14 | 2017-10-17 | 维珂瑞（北京）环境科技有限公司 | A kind of non-maintaining hermetically sealed cut-out cover plate valve |
| CN107269858A (en) * | 2017-08-14 | 2017-10-20 | 维珂瑞（北京）环境科技有限公司 | A kind of double-deck compression soft seal cut-out butterfly valve |
| CN107339469A (en) * | 2017-08-14 | 2017-11-10 | 维珂瑞（北京）环境科技有限公司 | A kind of non-maintaining type multi-cavity type cuts off valve group |
| CN107869584A (en) * | 2017-12-05 | 2018-04-03 | 洛阳建材建筑设计研究院有限公司 | A kind of sealing technology of oil shale swinging gas retort oil gas vent sealing device |
-
2013
- 2013-02-06 CN CN 201320067501 patent/CN203067800U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104565402A (en) * | 2013-10-29 | 2015-04-29 | 安徽红星阀门有限公司 | Valve |
| CN107246481A (en) * | 2017-08-14 | 2017-10-13 | 维珂瑞（北京）环境科技有限公司 | A kind of non-maintaining hermetically sealed cut-out butterfly valve |
| CN107255171A (en) * | 2017-08-14 | 2017-10-17 | 维珂瑞（北京）环境科技有限公司 | A kind of non-maintaining hermetically sealed cut-out cover plate valve |
| CN107269858A (en) * | 2017-08-14 | 2017-10-20 | 维珂瑞（北京）环境科技有限公司 | A kind of double-deck compression soft seal cut-out butterfly valve |
| CN107339469A (en) * | 2017-08-14 | 2017-11-10 | 维珂瑞（北京）环境科技有限公司 | A kind of non-maintaining type multi-cavity type cuts off valve group |
| CN107255171B (en) * | 2017-08-14 | 2023-09-05 | 维珂瑞（北京）环境科技有限公司 | Maintenance-free full-sealed cut-off cover plate valve |
| CN107339469B (en) * | 2017-08-14 | 2023-09-05 | 维珂瑞（北京）环境科技有限公司 | Maintenance-free multi-cavity type cutoff valve group |
| CN107269858B (en) * | 2017-08-14 | 2023-09-05 | 维珂瑞（北京）环境科技有限公司 | Double-layer compaction soft seal cut-off butterfly valve |
| CN107246481B (en) * | 2017-08-14 | 2023-09-05 | 维珂瑞（北京）环境科技有限公司 | Maintenance-free full-sealed cut-off butterfly valve |
| CN107869584A (en) * | 2017-12-05 | 2018-04-03 | 洛阳建材建筑设计研究院有限公司 | A kind of sealing technology of oil shale swinging gas retort oil gas vent sealing device |
| CN107869584B (en) * | 2017-12-05 | 2023-08-29 | 洛阳建材建筑设计研究院有限公司 | Sealing process of oil shale rotary retort oil gas outlet sealing device |
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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: 20130717 Termination date: 20210206 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |