CN203309238U - High-temperature high-pressure spring full lift safety valve - Google Patents
High-temperature high-pressure spring full lift safety valve Download PDFInfo
- Publication number
- CN203309238U CN203309238U CN2013203112866U CN201320311286U CN203309238U CN 203309238 U CN203309238 U CN 203309238U CN 2013203112866 U CN2013203112866 U CN 2013203112866U CN 201320311286 U CN201320311286 U CN 201320311286U CN 203309238 U CN203309238 U CN 203309238U
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- valve
- seat
- flap
- valve seat
- radiator
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- Lift Valve (AREA)
Abstract
The utility model discloses a high-temperature high-pressure spring full lift safety valve, which comprises a radiator, a protective cover, a valve body, a valve seat, a valve clack and a bonnet, wherein an annular groove is formed in one end, corresponding to the valve seat, of the valve clack; the periphery, corresponding to the annular groove, of the valve clack forms a raised edge part; and the end face of one end, corresponding to the valve seat, of the raised edge part is flush with the end face of one end, corresponding to the valve seat, of a valve clack seat, and the two end faces form elastic sealing with the valve seat. The safety valve has the effect of high sealing performance.
Description
Technical field
The utility model relates to a kind of valve, and more particularly, it relates to a kind of High Temperature High Pressure spring Fall lift safety valve.
Background technique
Safety valve is a kind of safety protection valve; its open-shut device is subjected to be in normally off under External Force Acting; pressure medium in equipment or pipeline raises, and automatically opens while surpassing specified value, prevents that by outside system, discharging medium in pipeline or equipment, pressure medium surpasses specified value.Safety valve belongs to the self-acting valve class, is mainly used on boiler, pressurized container and pipeline, and pilot pressure is no more than specified value, and personal safety and equipment have been moved to important protective action.Traditional High Temperature High Pressure spring Fall lift safety valve generally adopts the conventional seals part to seal, and easily because the medium influence of High Temperature High Pressure causes Sealing impaired, life cycle is reduced, and sealability reduces.
The model utility content
For the deficiency that prior art exists, the High Temperature High Pressure spring Fall lift safety valve that provides a kind of sealability strong is provided the purpose of this utility model.
For achieving the above object, the utility model provides following technological scheme: a kind of High Temperature High Pressure spring Fall lift safety valve comprises valve gap, radiator, valve body, valve seat, flap, the flap seat, guide sleeve and valve rod, be provided with upper spring seat in described valve gap, lower spring cup and with upper, the spring that lower spring cup is fixedly connected with, described upper spring seat, spring, lower spring cup is located in outside valve rod successively, described valve gap, radiator, valve body is fixedly connected sequentially, valve seat is placed in valve body and the other end of relative valve gap, guide sleeve is fixedly arranged on the joint of radiator and valve body, described guide sleeve is socketed in flap seat outer surface, the flap cover for seat is connected on the flap outer surface, and flap and valve rod are connected along the axial direction of valve rod, but flap is connected with the valve seat contact seal, corresponding valve seat one end of described flap is provided with annular groove, the periphery of the corresponding annular groove of described flap forms convex edge section, the end face of end face valve seat one end corresponding to the flap seat of corresponding valve seat one end of described convex edge section, and these two end faces all form elastic packing with valve seat.
By adopting technique scheme, when high-temperature high-pressure medium flows in valve body through valve base channel, active force first acts on sealing place of flap and valve seat, in fact the structure of the groove structure of flap and convex edge section is exactly the Raphel nozzle arrangements, this profile drag is low, guarantee to keep the sealing of height in the process of using for a long time, reduce mechanically deformation, the thermal distortion of valve seat and valve clack sealing surface, avoid flap and valve seat to seal insecure problem generation because of the erosion of Korrosionsmedium.
The utility model further is set to: the position between the corresponding radiator of described valve rod and valve body is provided with the Lift limiting stopper, and described valve rod is provided with for the Lift limiting stopper, forming the spacing lip part coordinated.
By adopting technique scheme; the Lift limiting stopper has been set up at position on valve rod between corresponding radiator and valve body; in valve opening; can carry out by the Lift limiting stopper height of limiter valve unlatching; protect well the parts in valve body, improved the life cycle of whole valve.
The accompanying drawing explanation
Fig. 1 is the sectional view of the utility model embodiment High Temperature High Pressure spring Fall lift safety valve.
Fig. 2 is the A section enlarged view of Fig. 1.
Reference character in figure: 1, valve body; 2, valve seat; 3, flap; 31, annular groove; 32, convex edge section; 4, flap seat; 5, guide sleeve; 6, radiator; 7, valve rod; 8, valve gap; 91, lower spring cup; 92, spring; 93, upper spring seat.
Embodiment
Referring to figs. 1 through Fig. 2, the utility model embodiment is described further.
A kind of High Temperature High Pressure spring Fall lift safety valve, comprise valve gap 8, radiator 6, valve body 1, valve seat 2, flap 3, flap seat 4, guide sleeve 5 and valve rod 7, be provided with upper spring seat 93 in described valve gap 8, lower spring cup 91 and with upper, lower spring cup 93, 91 springs that are fixedly connected with 92, described upper spring seat 93, spring 92, lower spring cup 91 is located in outside valve rod 7 successively, described valve gap 8, radiator 6, valve body 1 is fixedly connected sequentially, valve seat 2 is placed in valve body 1 and the other end of relative valve gap 8, guide sleeve 5 is fixedly arranged on the joint of radiator 6 and valve body 1, described guide sleeve 5 is socketed in flap seat 4 outer surfaces, flap seat 4 is socketed in flap 3 outer surfaces, and flap 3 and valve rod 7 are connected along the axial direction of valve rod 7, but flap 3 is connected with valve seat 2 contact seals, corresponding valve seat 2 one ends of described flap 3 are provided with annular groove 31, the periphery of the corresponding annular groove 31 of described flap 3 forms convex edge section 32, the end face of end face valve seat 2 one ends corresponding to flap seat 4 of described convex edge section 32 corresponding valve seat 2 one ends, and these two end faces all form elastic packing with valve seat 2.
By adopting technique scheme, high-temperature high-pressure medium flows into valve body 1 when interior through valve seat 2 passages, active force first acts on sealing place of flap 3 and valve seat 2, in fact the structure of the groove structure of flap 3 and convex edge section 32 is exactly the Raphel nozzle arrangements, this profile drag is low, guarantee to keep the sealing of height in the long-term process of using, reduce mechanically deformation, the thermal distortion of valve seat 2 and flap 3 sealing surfaces, avoid flap 3 and valve seat 2 to seal insecure problem generation because of the erosion of Korrosionsmedium.
Position between the corresponding radiator 6 of described valve rod 7 and valve body 1 is provided with Lift limiting stopper 71, and described valve rod 7 is provided with for Lift limiting stopper 71, forming the spacing lip part coordinated 72.
By adopting technique scheme; Lift limiting stopper 71 has been set up at position on valve rod 7 between corresponding radiator 6 and valve body 1; in valve opening; can carry out by Lift limiting stopper 71 height of limiter valve unlatching; protect well the parts in valve body 1, improved the life cycle of whole valve.
?The above is only preferred implementation of the present utility model, and protection domain of the present utility model also not only is confined to above-described embodiment, and all technological schemes belonged under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, in the some improvements and modifications that do not break away under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (2)
1. a High Temperature High Pressure spring Fall lift safety valve, comprise valve gap, radiator, valve body, valve seat, flap, the flap seat, guide sleeve and valve rod, be provided with upper spring seat in described valve gap, lower spring cup and with upper, the spring that lower spring cup is fixedly connected with, described upper spring seat, spring, lower spring cup is located in outside valve rod successively, described valve gap, radiator, valve body is fixedly connected sequentially, valve seat is placed in valve body and the other end of relative valve gap, guide sleeve is fixedly arranged on the joint of radiator and valve body, described guide sleeve is socketed in flap seat outer surface, the flap cover for seat is connected on the flap outer surface, and flap and valve rod are connected along the axial direction of valve rod, but flap is connected with the valve seat contact seal, it is characterized in that: corresponding valve seat one end of described flap is provided with annular groove, the periphery of the corresponding annular groove of described flap forms convex edge section, the end face of end face valve seat one end corresponding to the flap seat of corresponding valve seat one end of described convex edge section, and these two end faces all form elastic packing with valve seat.
2. High Temperature High Pressure spring Fall lift safety valve according to claim 1, it is characterized in that: the position between the corresponding radiator of described valve rod and valve body is provided with the Lift limiting stopper, and described valve rod is provided with for the Lift limiting stopper, forming the spacing lip part coordinated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203112866U CN203309238U (en) | 2013-05-31 | 2013-05-31 | High-temperature high-pressure spring full lift safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203112866U CN203309238U (en) | 2013-05-31 | 2013-05-31 | High-temperature high-pressure spring full lift safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203309238U true CN203309238U (en) | 2013-11-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203112866U Expired - Fee Related CN203309238U (en) | 2013-05-31 | 2013-05-31 | High-temperature high-pressure spring full lift safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203309238U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104141814A (en) * | 2014-07-16 | 2014-11-12 | 开封市瑞发高中压阀门有限公司 | Three-sleeve elastic self-sealing safety valve |
| CN104482261A (en) * | 2014-12-08 | 2015-04-01 | 章华 | High-temperature and high-pressure spring safety valve with heat compensation and elastic compensation sealing surface |
| CN104633197A (en) * | 2015-02-28 | 2015-05-20 | 吴江市东吴机械有限责任公司 | Main steam safety valve |
| CN111828697A (en) * | 2020-07-14 | 2020-10-27 | 哈电集团哈尔滨电站阀门有限公司 | Closed noise reduction safety valve |
-
2013
- 2013-05-31 CN CN2013203112866U patent/CN203309238U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104141814A (en) * | 2014-07-16 | 2014-11-12 | 开封市瑞发高中压阀门有限公司 | Three-sleeve elastic self-sealing safety valve |
| CN104141814B (en) * | 2014-07-16 | 2016-07-20 | 开封市瑞发高中压阀门有限公司 | The three elastic self sealss relief valve of set |
| CN104482261A (en) * | 2014-12-08 | 2015-04-01 | 章华 | High-temperature and high-pressure spring safety valve with heat compensation and elastic compensation sealing surface |
| CN104482261B (en) * | 2014-12-08 | 2017-07-18 | 章华 | HTHP spring safety valve with thermal compensation and elastic compensating sealing surface |
| CN104633197A (en) * | 2015-02-28 | 2015-05-20 | 吴江市东吴机械有限责任公司 | Main steam safety valve |
| CN111828697A (en) * | 2020-07-14 | 2020-10-27 | 哈电集团哈尔滨电站阀门有限公司 | Closed noise reduction safety valve |
| CN111828697B (en) * | 2020-07-14 | 2021-05-14 | 哈电集团哈尔滨电站阀门有限公司 | Closed noise reduction safety valve |
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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: 20131127 Termination date: 20160531 |