CN208348548U - Soft or hard dual-seal flat gate valve - Google Patents
Soft or hard dual-seal flat gate valve Download PDFInfo
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- CN208348548U CN208348548U CN201820931525.0U CN201820931525U CN208348548U CN 208348548 U CN208348548 U CN 208348548U CN 201820931525 U CN201820931525 U CN 201820931525U CN 208348548 U CN208348548 U CN 208348548U
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- hard
- valve
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Abstract
A kind of soft or hard dual-seal flat gate valve, the sealing means that use is soft, scleroma is closed, primary seal is soft seal, is RPTFE soft seal ring, secondary to be sealed into hard sealing, built-up welding STL.12.Soft, hard two seals face seals simultaneously, spring is equipped with towards the end face of valve body and soft sealing valve seat towards the end face of valve body in hard seal valve seat, to provide seal preload, in use, soft, hard seal valve seat is self-movement, to guarantee soft, hard sealing surface while seal.
Description
Technical field
The utility model is specifically related to valve technology field, and in particular to a kind of soft or hard dual-seal flat gate valve.
Background technique
Flat gate valve is the slide-valve that a kind of closure member is parallel gate plate.Its closure member can be single disc or therebetween band
There is the double disc of spreading mechanism.Flashboard to the pressing force of valve seat be by act on the pressure medium of floating flashboard or floating valve seat Lai
Control.If it is double disc flat gate valves, then the spreading mechanism between two flashboards can supplement this pressing force.Flat gate valve is by drive
Flowing mode can be divided into manual platform gate valve, Pneumatic flat-plate gate valve and driven plate gate valve.Can be divided by purposes and use occasion has
Deflector hole flat gate valve, without deflector hole flat gate valve, oil field flat gate valve, pipeline flat gate valve and gas flat plate gate valve etc..But
It is that the sealing performance performance of existing parallel gate plate tends to go wrong in the long-term use, to influence to use.
Summary of the invention
It is in order to solve the defects of prior art and insufficient.The utility model provides a kind of soft or hard dual-seal Flat Sluice
Valve.
The technical solution that the utility model uses is: a kind of soft or hard dual-seal flat gate valve, including valve body, described
Valve body in be equipped with valve rod, the top of the valve rod is equipped with flashboard, and the valve body is equipped with valve seat, the flashboard it is close
Cover and valve base chamber sealing cooperate, and the valve seat includes independent soft sealing valve seat and hard seal valve seat, the soft seal
Valve seat is equipped with soft seal ring, and the sealing surface soft seal of the soft seal ring and flashboard cooperates, in the soft sealing valve seat
It is additionally provided with the greasing hole for urgent greasing sealing function, the hard seal valve seat is located at soft sealing valve seat bottom, described
Hard seal valve seat heap on ram position is welded with STL alloy, the STL alloy of built-up welding and and flashboard on the hard seal valve seat
Sealing surface seal cooperation firmly.
Between the soft sealing valve seat and valve body, O-ring is equipped between hard seal valve seat and soft sealing valve seat.
The position at the hard seal valve seat towards flashboard end is equipped with convex shoulder, and the soft sealing valve seat is towards flashboard end
Position is equipped with groove, and cooperation is limited between the outer circle and groove of the convex shoulder.
There are gaps between the right side and groove of the convex shoulder.Gap between the right side and groove of the convex shoulder
Width is 1mm.
The hard seal valve seat is equipped with the first mounting groove towards the end face of valve body, is equipped in first mounting groove
First spring, first spring is between hard seal valve seat and the end face of valve body.
The soft sealing valve seat is equipped with the second mounting groove towards the end face of valve body, is equipped in second mounting groove
Second spring, the second spring is between soft sealing valve seat and the end face of valve body.
The beneficial effects of the utility model are: the utility model provides a kind of soft or hard dual-seal flat gate valve, use
The sealing means that soft, scleroma is closed, primary seal is soft seal, is RPTFE soft seal ring, secondary to be sealed into hard sealing, built-up welding STL.12.
Soft, hard two seals face seals simultaneously, in hard seal valve seat towards the end face of valve body and soft sealing valve seat towards valve body
End face be equipped with spring, to provide seal preload, in use, soft, hard seal valve seat is self-movement, with guarantee
Soft, hard sealing surface seals simultaneously.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model.
Fig. 2 is schematic enlarged-scale view at the utility model A.
1- valve body in figure, 2- valve rod, 3- flashboard, 4- soft sealing valve seat, the hard seal valve seat of 5-, 41- soft seal ring, 42- note
Rouge hole, 43-O shape circle, 44- groove, the gap 45-, 46- second spring, 51- convex shoulder, the first spring of 52-.
Specific embodiment
In order to be more clearly understood that the technology contents of the utility model, spy lifts following embodiment and is described in detail.It is a kind of
Soft or hard dual-seal flat gate valve, including valve body 1, the valve body 1 is interior to be equipped with valve rod 2, and the top of the valve rod 2 is equipped with lock
Plate 3, the valve body 1 are equipped with valve seat, and valve seat is Bidirectional seal structure, and left and right valve seat is just the same.The flashboard 3
Sealing surface and valve base chamber sealing cooperate, and the valve seat includes independent soft sealing valve seat 4 and hard seal valve seat 5, and described is soft
Seal valve seat 4 is equipped with soft seal ring 41, and the sealing surface soft seal of the soft seal ring 41 and flashboard 3 cooperates, and described is soft
The greasing hole 42 for urgent greasing sealing function is additionally provided on seal valve seat 4, the hard seal valve seat 5 is located at soft sealing valve
4 bottoms of seat, the hard seal valve seat 5 heap on 3 position of flashboard are welded with STL alloy, built-up welding on the hard seal valve seat 5
STL alloy seal cooperation firmly with the sealing surface of flashboard 3.The sealing means that the utility model is closed using soft, scleroma, primary seal
It is RPTFE soft seal ring for soft seal, it is secondary to be sealed into hard sealing, built-up welding STL.12.Sealing is played simultaneously in soft, hard two seals face
Effect is equipped with spring towards the end face of valve body and soft sealing valve seat towards the end face of valve body in hard seal valve seat, to provide sealing
Pretightning force, in use, soft, hard seal valve seat is self-movement, is made with guaranteeing soft, hard sealing surface while playing sealing
With.The utility model can not only make soft, hard seal valve seat self-movement when in use, but also can be in assembly, convenient for soft, hard close
Envelope valve seat is pulled open to two sides together, and then assembles flashboard.
Between the soft sealing valve seat 4 and valve body 1, O-ring is equipped between hard seal valve seat 5 and soft sealing valve seat 4
43。
The position at the hard seal valve seat 5 towards 3 end of flashboard is equipped with convex shoulder 51, and the soft sealing valve seat 4 is towards lock
The position at 3 end of plate is equipped with groove 44, and cooperation is limited between the outer circle and groove 44 of the convex shoulder 51, has dust reduction capability.
There are gaps 45 between the right side and groove 44 of the convex shoulder 51.The right side of the convex shoulder 51 and groove 44
Between gap 45 width be 1mm.
The hard seal valve seat 5 is equipped with the first mounting groove towards the end face of valve body 1, sets in first mounting groove
Have the first spring 52, to provide seal preload, first spring 52 be located at hard seal valve seat 5 and valve body 1 end face it
Between.
The soft sealing valve seat 4 is equipped with the second mounting groove towards the end face of valve body 1, sets in second mounting groove
Have second spring 46, to provide seal preload, the second spring 46 be located at soft sealing valve seat 4 and valve body 1 end face it
Between.
The above is only the preferred embodiment of the utility model, and the protection scope of the utility model is not limited merely to
Above-described embodiment, technical solution belonging to the idea of the present invention belong to the protection scope of the utility model.It should refer to
Out, for those skilled in the art, it is without departing from the principle of the utility model it is several improvement and
Retouching, these improvements and modifications also should be regarded as the protection scope of the utility model.
Claims (7)
1. a kind of soft or hard dual-seal flat gate valve, including valve body (1), the valve body (1) is interior to be equipped with valve rod (2), described
The top of valve rod (2) is equipped with flashboard (3), and the valve body (1) is equipped with valve seat, the sealing surface and valve seat of the flashboard (3)
Between seal cooperation, which is characterized in that the valve seat includes independent soft sealing valve seat (4) and hard seal valve seat (5), described
Soft sealing valve seat (4) is equipped with soft seal ring (41), and the soft seal ring (41) and the sealing surface soft seal of flashboard (3) are matched
It closes, the greasing hole (42) for urgent greasing sealing function, the hard sealing valve is additionally provided in the soft sealing valve seat (4)
Seat (5) is located at soft sealing valve seat (4) bottom, and the hard seal valve seat (5) is welded with STL alloy close to heap on flashboard (3) position,
The STL alloy of built-up welding and the sealing surface of flashboard (3) seal cooperation firmly on the hard seal valve seat (5).
2. soft or hard dual-seal flat gate valve according to claim 1, which is characterized in that the soft sealing valve seat (4)
Between valve body (1), O-ring (43) are equipped between hard seal valve seat (5) and soft sealing valve seat (4).
3. soft or hard dual-seal flat gate valve according to claim 1, which is characterized in that the hard seal valve seat (5)
Convex shoulder (51) are equipped with towards the position at flashboard (3) end, the soft sealing valve seat (4) is equipped with recessed towards the position that flashboard (3) is held
Slot (44) limits cooperation between the outer circle and groove (44) of the convex shoulder (51).
4. soft or hard dual-seal flat gate valve according to claim 3, which is characterized in that the right end of the convex shoulder (51)
There are gap (45) between face and groove (44).
5. soft or hard dual-seal flat gate valve according to claim 4, which is characterized in that the right end of the convex shoulder (51)
The width in the gap (45) between face and groove (44) is 1mm.
6. soft or hard dual-seal flat gate valve according to claim 1, which is characterized in that the hard seal valve seat (5)
It is equipped with the first mounting groove towards the end face of valve body (1), is equipped with the first spring (52) in first mounting groove, described the
One spring (52) is between hard seal valve seat (5) and the end face of valve body (1).
7. soft or hard dual-seal flat gate valve according to claim 1, which is characterized in that the soft sealing valve seat (4)
It is equipped with the second mounting groove towards the end face of valve body (1), is equipped with second spring (46) in second mounting groove, described the
Two springs (46) are located between soft sealing valve seat (4) and the end face of valve body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820931525.0U CN208348548U (en) | 2018-06-15 | 2018-06-15 | Soft or hard dual-seal flat gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820931525.0U CN208348548U (en) | 2018-06-15 | 2018-06-15 | Soft or hard dual-seal flat gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208348548U true CN208348548U (en) | 2019-01-08 |
Family
ID=64884074
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820931525.0U Active CN208348548U (en) | 2018-06-15 | 2018-06-15 | Soft or hard dual-seal flat gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208348548U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111255906A (en) * | 2020-03-20 | 2020-06-09 | 成都乘风阀门有限责任公司 | Composite sealing high-temperature flat gate valve |
| CN115234672A (en) * | 2021-09-03 | 2022-10-25 | 承德石油高等专科学校 | Two-way sealed parallel gate valve |
-
2018
- 2018-06-15 CN CN201820931525.0U patent/CN208348548U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111255906A (en) * | 2020-03-20 | 2020-06-09 | 成都乘风阀门有限责任公司 | Composite sealing high-temperature flat gate valve |
| CN115234672A (en) * | 2021-09-03 | 2022-10-25 | 承德石油高等专科学校 | Two-way sealed parallel gate valve |
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