CN2092648U - Stuffing type sealing constructure of valve by means of filling sealing agent - Google Patents
Stuffing type sealing constructure of valve by means of filling sealing agent Download PDFInfo
- Publication number
- CN2092648U CN2092648U CN 90226302 CN90226302U CN2092648U CN 2092648 U CN2092648 U CN 2092648U CN 90226302 CN90226302 CN 90226302 CN 90226302 U CN90226302 U CN 90226302U CN 2092648 U CN2092648 U CN 2092648U
- Authority
- CN
- China
- Prior art keywords
- valve
- sealing
- sealing agent
- stuffing
- filling
- 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.)
- Withdrawn
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- Details Of Valves (AREA)
Abstract
The utility model relates to a stuffing type sealing structure of valve by means of filling sealing agent. The seal of a valve stem and a valve cap adopts the structural form of stuffing type sealing by means of filling sealing agent. A stuffing pressing cover, a stuffing pad, a sealing ring and a fastener which are originally arranged on a valve are canceled. The structure is simplified. The external leakage of the valve can be effectively prevented. When the valve stem is leaked caused by abrasion, fresh sealing agent can be filled from an injection port of sealing agent by an injection gun without shutting-down. The leakage can be eliminated. Therefore, the maintenance can be carried out with temperature and pressure and without shutting-down. The utility model has the advantages of long service life and safe operation.
Description
It is close that the utility model belongs to the pipeline valve filler, particularly high-temperature high pressure valve stem packing sealing configuration.
The valve packing sealing is in order to prevent that medium from producing seepage in the gap of moving part valve rod and valve gap, the quality of packing seal performance, be to guarantee that valve does not produce one of essential condition that leaks outside at the valve stem seal place, existing valve packing sealing configuration has three kinds: 1, gland type; 2, gland nut formula; 3, bellow type etc.But no matter any packing seal structure all easily produces external leakage; Need stop production during maintenance the demolition Gland, change seal ring or increase stuffing box packing, and complex structure, maintenance is inconvenience very, influences the usability of valve.
The purpose of this utility model is to overcome deficiency of the prior art and a kind of injection sealing compound formula filling-material structure is provided, thereby has solved high-temperature high pressure valve external leakage problem.
Accompanying drawing is represented a kind of injection sealing compound formula valve packing sealing configuration.
Elaborate to injecting sealant formula valve packing hermetically-sealed construction below in conjunction with accompanying drawing.
In the accompanying drawings, it is as follows to mark each numeral: 1, valve rod; 2, valve gap; 3, can annotate sealing compound; 4, sealing compound inlet; 5, seal groove.
Description of drawings: the utility model injects sealing compound formula packing seal structure, by valve rod 1, valve gap 2, can annotate sealing compound 3, sealing compound inlet 4, seal groove 5, etc. constitute.At valve gap 2 endoporus a * b seal groove 5 is set, sealing compound inlet 4 is set at valve gap excircle and seal groove 5 relevant positions.Treat that the valve assembling finishes, can annotate sealing compound 3, inject valve rod and valve bonnet seal groove 5 formed spaces, realize sealing function, cancelled Gland, Packing seat, seal ring and the fastening piece etc. of original valve from sealing compound inlet 4.Simplify the structure, dwindled the volume of valve.Valve can replenish the fresh sealing compound of annotating that injects trace with filling gun from sealing compound inlet 4 in use if find between valve rod and the valve gap external leakage phenomenon is arranged under the situation of not stopping, can stop a leak.
Advantage of the present utility model is to have solved the long-standing external leakage problem of existing valve, make the sealability between valve rod and the valve gap more reliable, and it is simple in structure, easy to implement, can realize that band temperature, band are pressed, the maintenance of not stopping, so safe and reliable, pollution-free, long service life, it is very convenient, good in economic efficiency to keep in repair.
Embodiment: valve nominal pressure 20MPa, 450 ℃ of operating temperatures, stem diameter d=50mm gets a=10mm, b=50mm, sealing compound injection pressure 20MPa.
Claims (1)
1, a kind of injection sealing compound formula valve packing sealing configuration, comprise valve rod (1), valve gap (2), it is characterized in that: adopt between valve rod and the valve gap and inject the sealing compound sealing configuration, on valve gap (2) endoporus, be provided with seal groove (5), on valve gap cylindrical and the corresponding position of seal groove, be provided with sealing inlet (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90226302 CN2092648U (en) | 1990-12-24 | 1990-12-24 | Stuffing type sealing constructure of valve by means of filling sealing agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90226302 CN2092648U (en) | 1990-12-24 | 1990-12-24 | Stuffing type sealing constructure of valve by means of filling sealing agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2092648U true CN2092648U (en) | 1992-01-08 |
Family
ID=4903581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90226302 Withdrawn CN2092648U (en) | 1990-12-24 | 1990-12-24 | Stuffing type sealing constructure of valve by means of filling sealing agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2092648U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109686468A (en) * | 2019-01-09 | 2019-04-26 | 中国原子能科学研究院 | A kind of sylphon seal injection device for sodium-cooled fast reactor |
-
1990
- 1990-12-24 CN CN 90226302 patent/CN2092648U/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109686468A (en) * | 2019-01-09 | 2019-04-26 | 中国原子能科学研究院 | A kind of sylphon seal injection device for sodium-cooled fast reactor |
| CN109686468B (en) * | 2019-01-09 | 2024-02-20 | 中国原子能科学研究院 | Bellows sealing injection device for sodium-cooled fast reactor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |