CN204284561U - A kind of low-temperature safety valve - Google Patents
A kind of low-temperature safety valve Download PDFInfo
- Publication number
- CN204284561U CN204284561U CN201420696039.7U CN201420696039U CN204284561U CN 204284561 U CN204284561 U CN 204284561U CN 201420696039 U CN201420696039 U CN 201420696039U CN 204284561 U CN204284561 U CN 204284561U
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- CN
- China
- Prior art keywords
- arranges
- valve
- valve body
- valve rod
- guide sleeve
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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.)
- Expired - Fee Related
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- Safety Valves (AREA)
Abstract
A kind of low-temperature safety valve, comprise pedestal, described pedestal arranges valve body, described valve body arranges valve gap, described valve body arranges adjusting bolt, described adjusting bolt is connected with valve rod, described valve rod is arranged two limit spring seats, between described two limit spring seats, spring is set, described valve rod comprises valve rod lower end, described valve rod lower end arranges cambered surface, described valve rod lower end is arranged on groove, described groove comprises groove floor, described groove floor is conical surface, described groove is arranged on guide sleeve, described guide sleeve is connected with flap, between described guide sleeve and flap, sealed pressing sleeve is set, described sealed pressing sleeve arranges seat ring, described adjusting bolt arranges locking nut, between described pedestal and guide sleeve, Adjusting ring is set, between described pedestal and valve body, filler is set, described valve body and valve cover chamber arrange filler, described valve body arranges safety door, between described safety door and valve body, filler is set.
Description
Technical field
The utility model belongs to safety valve technical field, specifically relates to a kind of low-temperature safety valve.
Background technique
Safety valve is that open-shut device is subject to normally off under External Force Acting; when the pressure medium in equipment or pipeline exceedes specified value; the Special valve of specified value is exceeded by preventing pressure medium in pipeline or equipment to discharge medium outside system; for the protection of system; system can not be had an accident because of overpressure; there is sensitivity higher, mounting point unrestricted and to vibration sensing difference etc. advantage.But, conventional security valve is due to its structural defect, sealing surface is along with the increase generation wearing and tearing of access times, add the impact of the factors such as medium erosion, sealing surface can be caused to produce uneven, destroy the concentricity of valve body piece, cause the instability in valve working, affect tightness, produce the faults such as leakage, shorten working life.
Summary of the invention
The utility model mainly solves the technical problem existing for above-mentioned prior art, a kind of low-temperature safety valve is provided, by changing the flap be together by a threaded connection in conventional security valve and valve rod into non-touching two-part, be convenient to dismounting, easy-maintaining is changed, between flap and valve rod, guide sleeve is set, guide sleeve arranges groove, described groove floor is conical surface, valve rod lower end arranges cambered surface, cambered surface contacts with groove floor, make guide sleeve can adjust stressing conditions within the specific limits under valve rod effect, maintain flap, the concentricity of the valve body piece such as valve rod and guide sleeve, tightness is better, simultaneously, body length is longer, the transmission of effectively isolated heat, compare with conventional security valve, there is stability better, excellent sealing degree can be maintained, working life is longer, easy-maintaining is changed, be applicable to the features such as cryogenic media operating mode.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: a kind of low-temperature safety valve, comprise pedestal, described pedestal arranges valve body, described valve body arranges valve gap, described valve body also arranges adjusting bolt, described adjusting bolt is connected with valve rod, described valve rod is arranged two limit spring seats, arranges spring between described two limit spring seats; Described valve rod also comprises valve rod lower end, described valve rod lower end arranges cambered surface, described valve rod lower end is arranged in groove, state groove and comprise groove floor, described groove floor is conical surface, and described groove is arranged on guide sleeve, and described guide sleeve is connected with flap, between described guide sleeve and flap, sealed pressing sleeve is set, described sealed pressing sleeve arranges seat ring.
As preferably, described adjusting bolt arranges locking nut.
As preferably, between described pedestal and guide sleeve, Adjusting ring is set; Between described pedestal and valve body, filler is set.
As preferably, described valve body and valve cover chamber arrange filler; Described valve body arranges safety door, between described safety door and valve body, filler is set.
The beneficial effect that the utility model has: by changing the flap be together by a threaded connection in conventional security valve and valve rod into non-touching two-part, be convenient to install, easy-maintaining is changed, between flap and valve rod, guide sleeve is set, guide sleeve arranges groove, described groove floor is conical surface, valve rod lower end arranges cambered surface, described cambered surface contacts with groove floor, make guide sleeve can adjust stressing conditions within the specific limits under valve rod effect, maintain flap, the concentricity of the valve body piece such as valve rod and guide sleeve, tightness is better, simultaneously, body length is longer, the transmission of effectively isolated heat, compare with conventional security valve, there is stability better, excellent sealing degree can be maintained, working life is longer, easy-maintaining is changed, be applicable to the features such as cryogenic media operating mode.Therefore the utility model has the features such as structure is simple, reasonable in design.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 is a kind of structural representation that in Fig. 1, I is amplified.
In figure: 1, valve gap; 2, adjusting bolt; 3, locking nut; 4, valve rod; 5, filler; 6, limit spring seat; 7, spring; 8, valve body; 9, guide sleeve; 10, safety door; 11, pedestal; 12, flap; 13, groove; 14, groove floor; 15, seat ring; 16, sealing clamping ring; 17 valve rod lower ends; 18, cambered surface; 19, Adjusting ring.
Embodiment
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: a kind of low-temperature safety valve, as shown in Fig. 1 ~ Fig. 2, comprise pedestal, described pedestal arranges valve body, described valve body arranges valve gap, described valve body arranges adjusting bolt, described adjusting bolt is connected with valve rod, described valve rod is arranged two limit spring seats, between described two limit spring seats, spring is set, described valve rod comprises valve rod lower end, described valve rod lower end arranges cambered surface, described valve rod lower end is arranged on groove, described groove comprises groove floor, described groove floor is conical surface, described groove is arranged on guide sleeve, described guide sleeve is connected with flap, between described guide sleeve and flap, sealed pressing sleeve is set, described sealed pressing sleeve arranges seat ring, described adjusting bolt arranges locking nut, between described pedestal and guide sleeve, Adjusting ring is set, between described pedestal and valve body, filler is set, described valve body and valve cover chamber arrange filler, described valve body arranges safety door, between described safety door and valve body, filler is set.
During work, set safe air pressure by adjusting nut, when exceeding safe air pressure, gas medium will back down flap and drain, and make air pressure be returned in standard, meanwhile, manually can be opened by safety door and release unnecessary medium in valve body.The utility model guide sleeve can adjust stressing conditions within the specific limits under valve rod effect, maintain the concentricity of the valve body piece such as flap, valve rod and guide sleeve, tightness is better, simultaneously, body length is longer, the transmission of effectively isolated heat, compares with conventional security valve, has stability better, excellent sealing degree can be maintained, working life is longer, and easy-maintaining is changed, and is applicable to the features such as cryogenic media operating mode.
Finally, it should be pointed out that above embodiment is only the more representational example of the utility model.Obviously, the utility model is not limited to above-described embodiment, can also have many distortion.Every above embodiment is done according to technical spirit of the present utility model any simple modification, equivalent variations and modification, all should think and belong to protection domain of the present utility model.
Claims (4)
1. a low-temperature safety valve, comprise pedestal, it is characterized in that described pedestal arranges valve body, described valve body arranges valve gap, described valve body also arranges adjusting bolt, described adjusting bolt is connected with valve rod, described valve rod is arranged two limit spring seats, arranges spring between described two limit spring seats; Described valve rod also comprises valve rod lower end, described valve rod lower end arranges cambered surface, described valve rod lower end is arranged in groove, state groove and comprise groove floor, described groove floor is conical surface, and described groove is arranged on guide sleeve, and described guide sleeve is connected with flap, between described guide sleeve and flap, sealed pressing sleeve is set, described sealed pressing sleeve arranges seat ring.
2. a kind of low-temperature safety valve according to claim 1, is characterized in that described adjusting bolt arranges locking nut.
3. a kind of low-temperature safety valve according to claim 1, is characterized in that arranging Adjusting ring between described pedestal and guide sleeve, arranges filler between described pedestal and valve body.
4. a kind of low-temperature safety valve according to claim 1, is characterized in that described valve body and valve cover chamber arrange filler; Described valve body also arranges safety door, between described safety door and valve body, filler is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420696039.7U CN204284561U (en) | 2014-11-19 | 2014-11-19 | A kind of low-temperature safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420696039.7U CN204284561U (en) | 2014-11-19 | 2014-11-19 | A kind of low-temperature safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204284561U true CN204284561U (en) | 2015-04-22 |
Family
ID=52867722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420696039.7U Expired - Fee Related CN204284561U (en) | 2014-11-19 | 2014-11-19 | A kind of low-temperature safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204284561U (en) |
-
2014
- 2014-11-19 CN CN201420696039.7U patent/CN204284561U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150422 Termination date: 20171119 |