CN202360768U - Double-cone fireproof sealing structure of valve clack of low-temperature shutoff valve - Google Patents
Double-cone fireproof sealing structure of valve clack of low-temperature shutoff valve Download PDFInfo
- Publication number
- CN202360768U CN202360768U CN2011204304192U CN201120430419U CN202360768U CN 202360768 U CN202360768 U CN 202360768U CN 2011204304192 U CN2011204304192 U CN 2011204304192U CN 201120430419 U CN201120430419 U CN 201120430419U CN 202360768 U CN202360768 U CN 202360768U
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- valve
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- plane
- sealing ring
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Abstract
The utility model relates to a double-cone fireproof sealing structure of a valve clack of a low-temperature shutoff valve, which comprises a valve cover assembly, a valve rod, a hand wheel, a valve and a valve body, wherein the valve rod is arranged inside the valve cover assembly; the hand wheel is arranged at one end of the valve rod; the valve is arranged at the other end of the valve rod; and the valve cover assembly and the valve are arranged inside the valve body. According to the double-cone fireproof sealing structure of the valve clack of the low-temperature shutoff valve, the valve clack is connected with a sealing ring in a gap floating mode, a metal sealing inclined plane is processed on the valve clack, a sealing base of the valve body is designed and processed into a double-cone sealing base, the sealing ring contacts with the lower cone during normal operation, and the sealing ring is designed into the floating type and has a certain adjusting gap, so that an inclined plane of the sealing ring can evenly contact with the inclined plane of the sealing base of the valve body, good tightness is achieved, abrasion between the sealing ring and a valve base is reduced, and the service life is prolonged. The metal sealing inclined plane of the valve clack contacts with the upper cone of the valve body to prevent gases from leaking when the melting of the sealing ring fails.
Description
Technical field
The utility model relates to the Subzero valve field, particularly relates to a kind of cryogenic globe valve flap bipyramid face fire proof seal structure.
Background technique
Cryogenic globe valve is meant the valve that closure member (flap) moves along the centre line.According to this mobile form of flap, the variation of valve seat port is and flap stroke relation in direct ratio.Because the valve rod of such valve is opened or shutoff stroke is shorter relatively, and have and cut off function very reliably, again because the variation of valve seat port and the stroke relation in direct ratio of flap are very suitable for the adjusting to flow.Therefore, such valve is suitable as cut-out or adjusting and throttling use very much.
Promoting the use of the alternative acetylene of LNG LNG Liquefied natural gas, coal, oil and LNG fuel automobile; LNG low temperature cylinder valve is had higher requirement; Sealing melts the inefficacy late gate and still can gas cylinder be closed to the low temperature seal performance of valve and when burning, and prevents that gas leakage is combustion-supporting.The particularity of using to valve designs valve sealing structure.
The model utility content
For solving the problems of the technologies described above, the purpose of the utility model be to provide a kind of to valve the low temperature seal performance and when burning Sealing melt the cryogenic globe valve flap bipyramid face fire proof seal structure that the inefficacy late gate still can be closed gas cylinder.
The utility model cryogenic globe valve flap bipyramid face fire proof seal structure comprises: the valve gap assembly; Valve rod, being arranged in the said valve gap assembly of said valve rod; Handwheel, said handwheel are arranged on an end of said valve rod; Valve, said valve is arranged on the other end of said valve rod; Valve body, said valve gap assembly, said valve are arranged in the said valve body.
Be provided with the valve seal inclined-plane in the said valve body.End at said valve is provided with valve sealing inclined-plane.Said valve seal inclined-plane and said valve sealing inclined-plane agree with.Between said valve seal inclined-plane and said valve sealing inclined-plane, also be provided with seal ring.
The utility model cryogenic globe valve flap bipyramid face fire proof seal structure is designed to the gap with flap and seal ring and floats and to be connected; And on flap, process the metallic seal inclined-plane; Valve seal seat Design and Machining is become bipyramid face seal seat, and seal ring contacts with the following conical surface during proper functioning, and seal ring is designed to floating type certain adjusting play that has; Make seal ring inclined-plane and valve seal seat inclined-plane ability even contact; Play better sealing, reduced the wearing and tearing of seal ring and valve seat simultaneously, improved working life.After seal ring fusing was lost efficacy, the conical surface contacted the prevention gas leak on the metallic seal inclined-plane of flap and the valve body.
Description of drawings
Fig. 1 is the utility model cryogenic globe valve flap bipyramid face fire proof seal architecture cut-away view;
Description of reference numerals in the utility model cryogenic globe valve flap bipyramid face fire proof seal structure accompanying drawing:
1-valve gap assembly 2-valve rod 3-handwheel 4-valve
7-valve sealing inclined-plane, 5-valve body 6-valve seal inclined-plane 8-seal ring
Embodiment
Below in conjunction with accompanying drawing the utility model cryogenic globe valve flap bipyramid face fire proof seal structure is done further explain.
As shown in Figure 1, the utility model cryogenic globe valve flap bipyramid face fire proof seal structure comprises: valve gap assembly 1; Valve rod 2, being arranged in the valve gap assembly 1 of valve rod 2; Handwheel 3, handwheel 3 are arranged on an end of valve rod 2; Valve 4, valve 4 is arranged on the other end of valve rod 2; Valve body 5, valve gap assembly 1, valve 4 are arranged in the valve body 5.
Be provided with valve seal inclined-plane 6 in the valve body 5.End at valve 4 is provided with valve sealing inclined-plane 7.Valve seal inclined-plane 6 and valve sealing inclined-plane 7 agree with.Between valve seal inclined-plane 6 and valve sealing inclined-plane 7, also be provided with seal ring 8.
The utility model cryogenic globe valve flap bipyramid face fire proof seal structure is designed to the gap with flap and seal ring and floats and to be connected; And on flap, process the metallic seal inclined-plane; Valve seal seat Design and Machining is become bipyramid face seal seat, and seal ring contacts with the following conical surface during proper functioning, and seal ring is designed to floating type certain adjusting play that has; Make seal ring inclined-plane and valve seal seat inclined-plane ability even contact; Play better sealing, reduced the wearing and tearing of seal ring and valve seat simultaneously, improved working life.After seal ring fusing was lost efficacy, the conical surface contacted the prevention gas leak on the metallic seal inclined-plane of flap and the valve body.
The preferred embodiment of below the utility model having been created specifies; But the utility model is created and is not limited to embodiment; Those of ordinary skill in the art also can make all modification that is equal to or replacement under the prerequisite of the invention spirit, modification that these are equal to or replacement all are included in the application's claim institute restricted portion.
Claims (5)
1. cryogenic globe valve flap bipyramid face fire proof seal structure is characterized in that, comprising:
The valve gap assembly;
Valve rod, being arranged in the said valve gap assembly of said valve rod;
Handwheel, said handwheel are arranged on an end of said valve rod;
Valve, said valve is arranged on the other end of said valve rod;
Valve body, said valve gap assembly, said valve are arranged in the said valve body.
2. cryogenic globe valve flap bipyramid face fire proof seal structure according to claim 1 is characterized in that, is provided with the valve seal inclined-plane in the said valve body.
3. cryogenic globe valve flap bipyramid face fire proof seal structure according to claim 1 is characterized in that, is provided with valve sealing inclined-plane at an end of said valve.
4. according to claim 2 or 3 described cryogenic globe valve flap bipyramid face fire proof seal structures, it is characterized in that said valve seal inclined-plane and said valve sealing inclined-plane agree with.
5. cryogenic globe valve flap bipyramid face fire proof seal structure according to claim 4 is characterized in that, between said valve seal inclined-plane and said valve sealing inclined-plane, also is provided with seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204304192U CN202360768U (en) | 2011-11-03 | 2011-11-03 | Double-cone fireproof sealing structure of valve clack of low-temperature shutoff valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204304192U CN202360768U (en) | 2011-11-03 | 2011-11-03 | Double-cone fireproof sealing structure of valve clack of low-temperature shutoff valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202360768U true CN202360768U (en) | 2012-08-01 |
Family
ID=46571956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204304192U Expired - Lifetime CN202360768U (en) | 2011-11-03 | 2011-11-03 | Double-cone fireproof sealing structure of valve clack of low-temperature shutoff valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202360768U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103133704A (en) * | 2012-10-30 | 2013-06-05 | 四川天一科技股份有限公司 | Floating type seal mouse cage valve |
| CN103591302A (en) * | 2012-10-23 | 2014-02-19 | 北京熊川阀门制造有限公司 | Sealing structure of needle-shaped stop valve |
-
2011
- 2011-11-03 CN CN2011204304192U patent/CN202360768U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103591302A (en) * | 2012-10-23 | 2014-02-19 | 北京熊川阀门制造有限公司 | Sealing structure of needle-shaped stop valve |
| CN103591302B (en) * | 2012-10-23 | 2015-11-04 | 北京熊川阀门制造有限公司 | A kind of sealing configuration of needle stop valve |
| CN103133704A (en) * | 2012-10-30 | 2013-06-05 | 四川天一科技股份有限公司 | Floating type seal mouse cage valve |
| CN103133704B (en) * | 2012-10-30 | 2014-07-09 | 四川天一科技股份有限公司 | Floating type seal mouse cage valve |
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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: 20120801 |
|
| CX01 | Expiry of patent term |