CN202612663U - Sealing oxygen stop valve - Google Patents
Sealing oxygen stop valve Download PDFInfo
- Publication number
- CN202612663U CN202612663U CN 201220099288 CN201220099288U CN202612663U CN 202612663 U CN202612663 U CN 202612663U CN 201220099288 CN201220099288 CN 201220099288 CN 201220099288 U CN201220099288 U CN 201220099288U CN 202612663 U CN202612663 U CN 202612663U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve rod
- sealing
- oxygen
- corrugated pipe
- 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
Links
Images
Abstract
The utility model provides a sealing oxygen stop valve through which the phenomenon that oil dirt enters a valve cavity to meet oxygen so as to generate explosion hazard through a filler gap is avoided. The sealing oxygen stop valve comprises a valve body, a valve clack positioned in the valve body, a valve rod connected to the valve clack, a valve cover positioned on the valve body, and a hand wheel positioned at a free end of the valve rod, wherein a sealing filler is arranged between the valve cover and the valve rod; a filler gland is arranged on the sealing filler; the lower end of the valve cover is provided with an upper corrugated pipe seat; a metal corrugated pipe for sealing is sleeved on the valve rod which is positioned in the valve body; and the upper end of the metal corrugated pipe is fixed on the upper corrugated pipe seat, and the lower end of the metal corrugated pipe is fixed on the valve clack. By the sealing oxygen stop valve, by adoption of a multi-layer structure, the valve rod is channeled in an inner cavity of the corrugated pipe through the metal corrugated pipe, an oxygen medium is completely isolated from the valve rod, the lifting of the valve rod is not associated with the valve cavity at all, and the danger that the oil dirt flows into the valve cavity to explode with the oxygen through the filler gap when the valve rod is lubricated and subjected to oil injection in the valve using process is avoided.
Description
Technical field
The utility model relates to a kind of valve body, especially a kind of sealing oxygen stop valve.
Background technique
The structure of the oxygen stop valve of public offering use has at present been used for many years, and structure is too simple, changes material with common stop valve exactly, increases a ground wire and eliminates electrostatic equipment; Remove grease, just be used in oxygen channel, valve stem seal part particularly is owing to adopt packing seal; Valve is through a switch usefulness several times, and the filler wearing and tearing produce the gap, and oxygen begins to leak, leak gather a certain amount of after; Blast is caught fire easily, causes very big harm, the lighter's environmental pollution for factory, environment and personal safety; Weight person fatal crass sustains a great loss the country and people's property, because the existence of filler space; Greasy dirt flows into valve pocket through filler space, and oxygen is met the oil blast, and the problem safe in utilization of oxygen valve is threatening the family everywhere.
My company is through for many years exploration and research; Design present sylphon seal oxygen stop valve; This kind stop valve has solved the gland sealed unreliability; The valve switch valve rod drive that flap promotes, rotation produces in addition zero collide with sparking and in addition zero friction produce static and cause oxygen and catch fire, and greasy dirt gets into valve pocket through the filler slit and meets the oxygen explosion hazard.
The model utility content
The utility model provides a kind of and has prevented that greasy dirt from passing through the filler slit and getting into the sealing oxygen stop valve that valve pocket is met the oxygen explosion risk.
Realize the sealing oxygen stop valve of the utility model purpose, comprise valve body, be positioned at the flap of valve body, be connected the valve rod on the flap, be positioned at the valve gap on the said valve body, be positioned at the free-ended handwheel of valve rod; Be provided with stuffing box packing between said valve gap and the valve rod; Said stuffing box packing is provided with Gland; Said valve gap lower end is provided with corrugated header; Be positioned at and be with sealing on the valve rod of said valve body and use metal bellows, the upper end of said metal bellows is fixed on the corrugated header, and the lower end is fixed on the flap.
Can be rotatably connected relatively between said valve rod and the flap.
Said valve rod is provided with antirotation keys.
Said handwheel is fixed on the said valve rod through Stem Mut.
The beneficial effect of the sealing oxygen stop valve of the utility model is following:
1, the sealing oxygen stop valve of the utility model; Adopt the multi-layer structure metal bellows that valve rod is scurried in the bellows inner chamber,, connect one in flap down connecting together in corrugated header on the bellows; Make the valve rod outside form the metal-coating barrier of one 100% sealing; Isolated fully oxygen medium and valve rod, make oxygen just as in a perfect vaccum pipeline, flowing the open and close of valve; The lifting of valve rod and valve pocket do not produce any contact, and the while valve in use lubricates oiling to valve rod need not consider that also greasy dirt passes through the filler slit and flows into the harm that valve pocket is met the oxygen blast.
2, adopt the Stem Mut rotation, pulling valve rod straight line rises, and flap does not rotate; Reduced the mutual friction of flap sealing surface and valve body sealing surface; Improved the working life of valve, friction produces electricity to eliminate the valve rod rotation simultaneously, stopped oxygen and met the accident generation that static causes fire and blast.
3, valve rod and Stem Mut place can increase oiling agent, have reduced the valve opening and closing moment, and be time saving and energy saving.Slow down and lack the wearing and tearing of valve rod and Stem Mut, prolonged the working life of valve rod.
Description of drawings
Fig. 1 is the structural representation of the sealing oxygen stop valve of the utility model.
Embodiment
As shown in Figure 1, the sealing oxygen stop valve of the utility model comprises valve body 11, is positioned at the flap 10 of valve body 11, is connected the valve rod 8 on the flap 10, is positioned at the valve gap 5 on the said valve body 11, is positioned at valve rod 8 free-ended handwheels 1; Be provided with stuffing box packing 4 between said valve gap 5 and the valve rod 8; Said stuffing box packing 4 is provided with Gland 3; Said valve gap 5 lower ends are provided with corrugated header 6; Be positioned at and be with sealing on the valve rod 8 of said valve body 11 with metal bellows 9, the upper end of said metal bellows 9 is fixed on the corrugated header 6, and the lower end is fixed on the flap 10.
Can be rotatably connected relatively between said valve rod 8 and the flap 10.
Said valve rod 8 is provided with antirotation keys 7.
Said handwheel 1 is fixed on the said valve rod 8 through Stem Mut 2.
Embodiment recited above describes the preferred implementation of the utility model; Be not that scope to the utility model limits; Design under the spiritual prerequisite not breaking away from the utility model; Various distortion and improvement that the common engineers and technicians in related domain make the utility model technological scheme all should fall in the protection domain that claims of the utility model confirm.
Claims (4)
1. a sealing oxygen stop valve is characterized in that: comprise valve body, be positioned at the flap of valve body, be connected the valve rod on the flap, be positioned at the valve gap on the said valve body, be positioned at the free-ended handwheel of valve rod; Be provided with stuffing box packing between said valve gap and the valve rod; Said stuffing box packing is provided with Gland; Said valve gap lower end is provided with corrugated header; Be positioned at and be with sealing on the valve rod of said valve body and use metal bellows, the upper end of said metal bellows is fixed on the corrugated header, and the lower end is fixed on the flap.
2. sealing oxygen stop valve according to claim 1 is characterized in that: can be rotatably connected relatively between said valve rod and the flap.
3. sealing oxygen stop valve according to claim 1 and 2, it is characterized in that: said valve rod is provided with antirotation keys.
4. sealing oxygen stop valve according to claim 1 and 2, it is characterized in that: said handwheel is fixed on the said valve rod through Stem Mut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220099288 CN202612663U (en) | 2012-03-16 | 2012-03-16 | Sealing oxygen stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220099288 CN202612663U (en) | 2012-03-16 | 2012-03-16 | Sealing oxygen stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202612663U true CN202612663U (en) | 2012-12-19 |
Family
ID=47346364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220099288 Expired - Fee Related CN202612663U (en) | 2012-03-16 | 2012-03-16 | Sealing oxygen stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202612663U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016756A (en) * | 2013-01-07 | 2013-04-03 | 李江平 | Throttling stop valve |
-
2012
- 2012-03-16 CN CN 201220099288 patent/CN202612663U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016756A (en) * | 2013-01-07 | 2013-04-03 | 李江平 | Throttling stop valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204403497U (en) | A kind of tempering stops valve | |
| CN202612663U (en) | Sealing oxygen stop valve | |
| CN205479583U (en) | In -band leaks super low temperature check valve of function | |
| CN103244691A (en) | Internal pressure type bellows stop valve with switch display positions | |
| CN104214375A (en) | HVDC (High Voltage Direct Current) swing check valve | |
| CN202719181U (en) | Hard seal ball valve | |
| CN203272811U (en) | Internal pressure corrugated pipe stop valve with opening and closing position display | |
| CN203374915U (en) | Fusing safety valve of oil pipelines and gas pipelines | |
| CN204226749U (en) | One fills profile shaft flow check valve | |
| CN204062027U (en) | high voltage direct current swing check valve | |
| CN203516765U (en) | Jamming-preventing butterfly valve special for gas | |
| CN204297137U (en) | A kind of energy saving and environment friendly discharger | |
| CN201925534U (en) | Metal seal check valve with wide-angle sloping plate | |
| CN206570199U (en) | Fiery seal closure is seen in a kind of fusing with ventilation type | |
| CN201857999U (en) | Compressed air sealing device for oil seal | |
| CN204239879U (en) | A kind of oil immersed type filling seal valve | |
| CN204985783U (en) | Hand -operated flat plate gate valve | |
| CN205654937U (en) | Prevent static stop valve | |
| CN203395231U (en) | Closed waterproof thermal recovery gate valve | |
| CN204533618U (en) | A kind of have wearing and tearing and do not leak the Liquid valve with function of self closing | |
| CN204061952U (en) | Flap type | |
| CN206845960U (en) | A kind of forged steel all-welded ball valve | |
| CN214888980U (en) | Sheet type automatic pre-tightening flat valve | |
| CN206429682U (en) | Sylphon seal gate valve with function of eliminating static | |
| CN201866312U (en) | Special ball valve for oxygen |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121219 Termination date: 20140316 |