CN206522490U - High-performance HTHP safety valve - Google Patents
High-performance HTHP safety valve Download PDFInfo
- Publication number
- CN206522490U CN206522490U CN201720236090.3U CN201720236090U CN206522490U CN 206522490 U CN206522490 U CN 206522490U CN 201720236090 U CN201720236090 U CN 201720236090U CN 206522490 U CN206522490 U CN 206522490U
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- CN
- China
- Prior art keywords
- flap
- seat
- valve
- safety valve
- disc holder
- 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
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Abstract
The utility model is related to a kind of high-performance HTHP safety valve.Mainly solve that existing double coil spring formula safety valve flow resistance is larger, cost is high, flap is also easy to produce chatter, the irrational problem of elastic compensating structure between flap and valve seat.It is characterized in that：The flap (3) includes flap main body (31), interior saving groove (32) and straight mouth sealing ring (33), and the interior saving groove (32) and the outer wall of flap main body (31) adjacent are provided with circular arc-shaped ring groove (34)；The lower end of the flap seat (4) is provided with Disc holder (7).The utility model eliminates original adjusting ring, it is stuck and the problem of adjusting ring is adjusted in the absence of adjusting ring screw thread condensation-crystallization, change flap and flap holder structure, effectively reduce flow resistance, reduce cost, prevent to be provided with rational elastic compensating structure on flap chatter and stuck phenomenon, flap, improved valve blow pressure and sealing property, increase discharge capacity.
Description
Technical field
The utility model is related to a kind of safety valve, and in particular to a kind of high-performance HTHP safety valve.
Background technology
Safety valve plays safeguard protection in systems, is mainly used in the internal pressures such as control boiler, pressure vessel, pipeline
No more than setting, when system pressure exceedes setting, safety valve is opened, and a part of gas or fluid in system are discharged into
In air or outside pipeline, system pressure is set to be no more than permissible value, so as to ensure that because of hypertonia accident does not occur for system.Wherein
Double coil spring formula safety valve is common one kind, and existing double coil spring formula safety valve includes valve body, valve seat, flap, upper regulation
Circle and lower adjusting ring, flap are connected with flap seat, and flap is arranged in flap guide pin bushing and flap guide pin bushing can slided relatively, valve
Adjusting ring and lower adjusting ring are separately installed with seat and on flap guide pin bushing, flap is used on hard sealing structure, valve seat with valve seat
It is welded with above hard alloy sealing surface, flap guide pin bushing and is provided with back pressure cavity, is provided with the side wall of back pressure cavity for adjusting flap
There is following technological deficiency when in use in the adjusting needle valve of back pressure, this double coil spring formula safety valve：As shown in figure 3,1. by
In the presence of adjusting ring, cause flow resistance larger, while processing cost is higher；2. when flap is opened, medium is injected directly into valve
On guiding hole wall between valve guide pin bushing and flap seat, the medium condensation-crystallization after valve closing, valve can be made by having used after a period of time
Door, which is opened, produces chatter and stuck phenomenon；3. due to valve flap structure defect, although being provided with elastic compensating knot between flap and valve seat
Structure, but the unreasonable effect for not having elastic packing of the structure design, are difficult to reach sealing effectiveness, the sealing of flap at high temperature
Face, which is externally provided with outer ring and saving groove, to cause blow pressure relatively low, and medium is injected directly into the thread pitch of adjusting ring, medium
At condensation-crystallization screw thread, cause adjusting ring is stuck cannot adjust.
Utility model content
In order to solve that existing double coil spring formula safety valve flow resistance is larger, cost is high, flap is also easy to produce chatter, flap and valve
The irrational problem of elastic compensating structure between seat, the utility model provides a kind of high-performance HTHP safety valve, the high property
Can HTHP safety valve eliminate original adjusting ring, in the absence of adjusting ring screw thread condensation-crystallization it is stuck and to adjusting ring carry out
The problem of regulation, change flap and flap holder structure, effectively reduce flow resistance, reduce cost, prevented flap chatter and
Rational elastic compensating structure is provided with stuck phenomenon, flap, valve blow pressure and sealing property is improved, increases
Discharge capacity.
The technical solution of the utility model is：The high-performance HTHP safety valve, including valve body, valve seat and flap, valve
Valve is connected with flap seat, and flap is arranged in flap guide pin bushing and flap guide pin bushing can slided relatively, and hard is welded with valve seat
Alloy seal face, the flap includes flap main body, interior saving groove and straight mouth sealing ring, and the inwall of the interior saving groove is upper big
Under small circular conical surface, the interior saving groove and the outer wall of flap main body adjacent are provided with circular arc-shaped ring groove, make interior saving groove and valve
Elastic deformation can be produced between valve main body, the lower surface of the straight mouth sealing ring is corresponding with hard alloy sealing surface；It is described
The lower end of flap seat is provided with Disc holder, and the external diameter of the Disc holder is not less than the internal diameter of flap guide pin bushing, and Disc holder is sufficient to hide
Block the gap between flap guide pin bushing and flap seat.
The inwall of the Disc holder is up-small and down-big circular conical surface.
The Disc holder is structure as a whole with flap seat.
The utility model has the advantages that：Due to taking above-mentioned technical proposal, original adjusting ring is eliminated, no
There is adjusting ring screw thread condensation-crystallization stuck and the problem of adjusting ring is adjusted, change flap and flap holder structure, have
Effect reduces flow resistance, reduces cost, has prevented to be provided with rational elastic compensating on flap chatter and stuck phenomenon, flap
Structure, improves valve blow pressure and sealing property, increases discharge capacity.
Brief description of the drawings
Accompanying drawing 1 is structure sectional view of the present utility model.
Accompanying drawing 2 is enlarged drawing at A in Fig. 1.
Accompanying drawing 3 is the structure sectional view of background technology.
Saving groove in 1- valve bodies in figure, 2- valve seats, 3- flaps, 31- flap main bodys, 32-, the straight mouth sealing rings of 33-, 34- circles
Arc-shaped ring groove, 4- flaps seat, 5- flap guide pin bushings, 6- hard alloy sealing surfaces, 7- Disc holders.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings：
As shown in Fig. 1~Fig. 3, the high-performance HTHP safety valve, including valve body 1, valve seat 2 and flap 3, flap 3 with
Flap seat 4 is connected, and flap 4 is arranged in flap guide pin bushing 5 and flap guide pin bushing 5 can slided relatively, and hard is welded with valve seat 2
Alloy seal face 6, the flap 3 includes flap main body 31, interior saving groove 32 and straight mouth sealing ring 33, the interior saving groove 32
Inwall is up big and down small circular conical surface, and the interior saving groove 32 and the outer wall of the adjacent of flap main body 31 are provided with circular arc-shaped ring groove
34, make that elastic deformation can be produced between interior saving groove 32 and flap main body 31, the lower surface of the straight mouth sealing ring 33 with it is hard
Matter alloy seal face 6 is corresponding；The lower end of the flap seat 4 is provided with Disc holder 7, and the external diameter of the Disc holder 7 is not less than flap
The internal diameter of guide pin bushing 5, and Disc holder 7 is sufficient to shelter from the gap between flap guide pin bushing 5 and flap seat 4.Due to taking above-mentioned skill
Depending on art scheme, the cone angle of the inwall of interior saving groove 32 and the depth of circular arc-shaped ring groove 34 are according to different pressure, certain
Pressure condition under can produce elastic deformation and reach optimal sealing property, it is straight that straight mouth sealing ring 33 produces after micro-strain its
Linear sealing is formed between intraoral lateral edges and hard alloy sealing surface 6.Disc holder 7 can limit Lift and be avoided that medium
It is directly sprayed onto on guiding hole wall.Original adjusting ring is eliminated, it is stuck and to adjusting ring in the absence of adjusting ring screw thread condensation-crystallization
The problem of being adjusted, changes flap and flap holder structure, effectively reduces flow resistance, reduce cost, has prevented the frequency of flap 2
Jump and stuck phenomenon, rational elastic compensating structure be provided with flap 2, improve valve blow pressure and sealing property,
Increase discharge capacity.
The inwall of the Disc holder 7 is up-small and down-big circular conical surface.The interior wall construction of Disc holder 7 can obtain flap 3
Larger opens height, while also being arranged beneficial to medium to outlet.
The Disc holder 7 is structure as a whole with flap seat 4.It is simple in construction, it is easy to process and assembles.
Claims (3)
1. a kind of high-performance HTHP safety valve, including valve body (1), valve seat (2) and flap (3), flap (3) and flap seat
(4) it is connected, flap seat (4) is arranged in flap guide pin bushing (5) and the relative flap guide pin bushing (5) of energy is slided, and valve seat is welded with (2)
Hard alloy sealing surface (6), it is characterised in that：The flap (3) is close comprising flap main body (31), interior saving groove (32) and straight mouth
Seal ring (33), the inwall of the interior saving groove (32) is up big and down small circular conical surface, the interior saving groove (32) and flap main body
(31) outer wall of adjacent is provided with circular arc-shaped ring groove (34), makes that between interior saving groove (32) and flap main body (31) bullet can be produced
Property deformation, the lower surface of the straight mouth sealing ring (33) is corresponding with hard alloy sealing surface (6)；Under the flap seat (4)
End is provided with Disc holder (7), and the external diameter of the Disc holder (7) is not less than the internal diameter of flap guide pin bushing (5), and Disc holder (7) is sufficient to
Shelter from the gap between flap guide pin bushing (5) and flap seat (4).
2. high-performance HTHP safety valve according to claim 1, it is characterised in that：The inwall of the Disc holder (7)
For up-small and down-big circular conical surface.
3. high-performance HTHP safety valve according to claim 2, it is characterised in that：The Disc holder (7) and flap
Seat (4) is structure as a whole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720236090.3U CN206522490U (en) | 2017-03-13 | 2017-03-13 | High-performance HTHP safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720236090.3U CN206522490U (en) | 2017-03-13 | 2017-03-13 | High-performance HTHP safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206522490U true CN206522490U (en) | 2017-09-26 |
Family
ID=59903419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720236090.3U Expired - Fee Related CN206522490U (en) | 2017-03-13 | 2017-03-13 | High-performance HTHP safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206522490U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109163126A (en) * | 2018-11-01 | 2019-01-08 | 恒华阀门有限公司 | High-performance high temperature and pressure safety valve |
| CN109986080A (en) * | 2018-12-27 | 2019-07-09 | 西安赛隆金属材料有限责任公司 | A kind of bottom plate levelling device and powder bed increasing material manufacturing equipment |
| CN112628413A (en) * | 2020-12-01 | 2021-04-09 | 永嘉中特阀门有限公司 | Dustproof anti-lock high temperature butterfly valve |
| CN109163126B (en) * | 2018-11-01 | 2024-06-28 | 恒华阀门有限公司 | High-performance high-temperature high-pressure safety valve |
-
2017
- 2017-03-13 CN CN201720236090.3U patent/CN206522490U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109163126A (en) * | 2018-11-01 | 2019-01-08 | 恒华阀门有限公司 | High-performance high temperature and pressure safety valve |
| CN109163126B (en) * | 2018-11-01 | 2024-06-28 | 恒华阀门有限公司 | High-performance high-temperature high-pressure safety valve |
| CN109986080A (en) * | 2018-12-27 | 2019-07-09 | 西安赛隆金属材料有限责任公司 | A kind of bottom plate levelling device and powder bed increasing material manufacturing equipment |
| CN109986080B (en) * | 2018-12-27 | 2021-07-09 | 西安赛隆金属材料有限责任公司 | Bottom plate leveling device and powder bed additive manufacturing equipment |
| CN112628413A (en) * | 2020-12-01 | 2021-04-09 | 永嘉中特阀门有限公司 | Dustproof anti-lock high temperature butterfly valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170926 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |