CN103062428B - self-sealing high-pressure valve - Google Patents
self-sealing high-pressure valve Download PDFInfo
- Publication number
- CN103062428B CN103062428B CN201210502275.6A CN201210502275A CN103062428B CN 103062428 B CN103062428 B CN 103062428B CN 201210502275 A CN201210502275 A CN 201210502275A CN 103062428 B CN103062428 B CN 103062428B
- Authority
- CN
- China
- Prior art keywords
- valve
- outlet
- outlet valve
- hole
- valve seat
- 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
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 23
- 230000007246 mechanism Effects 0.000 claims abstract description 15
- 238000007667 floating Methods 0.000 claims abstract description 5
- 230000006835 compression Effects 0.000 claims abstract description 4
- 238000007906 compression Methods 0.000 claims abstract description 4
- 230000008676 import Effects 0.000 claims description 32
- 241000283216 Phocidae Species 0.000 claims description 12
- 230000013011 mating Effects 0.000 claims description 7
- 230000008901 benefit Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 238000012856 packing Methods 0.000 description 3
- 208000032843 Hemorrhage Diseases 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000008733 trauma Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000012824 chemical production Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Abstract
The invention relates to a high-pressure valve, in particular to a self-sealing high-pressure valve which comprises an inlet valve base and an outlet valve base. The self-sealing high-pressure valve is characterized in that a valve plug is arranged between the inlet valve base and the outlet valve base, the inlet valve base and the outlet valve base are connected through a support, the valve plug is connected with a starting and closing operation mechanism, and the valve plug is formed by matching an inlet valve plug and an outlet valve plug to form a closed cylinder. An inlet valve plug sliding sleeve and an outlet valve plug sliding sleeve are connected in floating mode, a compression spring is respectively arranged in inner cavities of the left valve plug and the right valve plug, a sealing piece is arranged on a matching face of the inlet valve plug and the outlet valve plug, through holes are arranged on the inlet valve base and the outlet valve base respectively, and through holes are arranged on the bottom faces of the inlet valve plug and the output valve plug. The self-sealing high-pressure valve is characterized in that the valve plug through hole on the inlet valve base is circular, the through hole on the inlet valve plug is long and narrow, and the length of the through hole on the inlet valve base is larger than a stroke of the starting and closing operation mechanism. The self-sealing high-pressure valve has the advantages of forming self-force sealing on the valve plug and the valve bases by means of the pressure of a medium.
Description
Technical field
The present invention relates to a kind of high pressure valve, is particularly a kind of self sealss high pressure valve.
Background technology
There are many high pressure valves on some chemical production lines, automatic production line at present, general high pressure valve is due to height
The greatest problem that pressure medium causes is exactly to be deformed causing medium to be leaked after structural member is acted on by high pressure.Valve always exists
Push And Release two-state constantly replaces, and the pressure that the entrance point of valve is subject in off position all bears the import in valve
Side, whole valve discontinuity be deformed causing leakage, and time length just produces permanent deformation, valve must just repair or
Change, affect production.The valve body of general valve is monoblock type, and two sealing surfaces require it is parallel or symmetrical, in system
As the structure of valve body and the impact of heat treatment always there are some unparalleled phenomenons during making, so it is easy to produce internal hemorrhage due to trauma, is
Make internal hemorrhage due to trauma do not leak just must encrypt between valve body and valve gap packing, packing seal knot is set between valve gap and valve rod
Structure, causes to open and close torque increase.Sometimes with the fluctuation of pressure, leakage will be produced at packing seal, it is necessary to artificial to locate
Reason.Therefore urgently the structure of existing high pressure valve is improved, to solve the problems, such as the easy seepage of current high pressure valve.
The content of the invention
Present invention aim to address prior art mesohigh valve is carried out between valve element and valve seat using rubber seal
Sealing existing for the restriction to high pressure of aging leakage problems and soft seal；Solve to become after prior art mesohigh valve is pressurized
The leakage that shape causes.A kind of self sealss high pressure valve is provided.A kind of self sealss high pressure valve of present invention design, including import, outlet valve
Seat, it is characterised in that：There is a valve element between import, outlet valve seat, import, outlet valve seat are connected by a support, valve element connection
One opens and closes operating mechanism, and described valve element constitutes the cylindrical body of a closing, import, outlet with import, two valve elements of outlet
Two valve element sliding sleeve floating connections, are provided with a compression spring, import, two valves of outlet in the inner chamber body of two valve elements in left and right
Sealing member is provided with the mating surface of core, through hole is each provided with import, outlet valve seat, at import, the bottom of two valve elements of outlet
Through hole is provided with face.It is characterized in that：Through hole on import valve seat is circular, and the through hole on inlet spool is thin-and-long
Its length dimension is more than the stroke for opening and closing operating mechanism.It is characterized in that：It is logical on valve element and outlet valve core in outlet valve seat
The diameter sum in hole is less than the stroke for opening and closing operating mechanism, it is characterised in that：Set in import, the mating surface of two valve elements of outlet
The sealing member both sides put are O-ring seals, and middle is metallic elastic piston ring, and described metallic elastic piston ring is an annulus, annulus
Centre have Z-shaped otch.It is an advantage of the invention that using the pressure of medium, constituting for the sealing of relying on oneself of valve element valve seat.
Description of the drawings
Fig. 1 is the structural upright half-section diagram of the present invention（Closed mode）.
Fig. 2 is the structural upright half-section diagram of the present invention（Opening state）.
Fig. 3 is the A in Fig. 2 to partial schematic diagram.
Fig. 4 is the metallic elastic piston ring structural upright schematic diagram of the present invention.
Make detailed operation instruction to the present invention with construction embodiment below in conjunction with the accompanying drawings.
Specific embodiment
Figure includes import, outlet valve seat 1,2, it is characterised in that：Have one between import, outlet valve seat by import and export
The valve element that valve element 3 and 4 is constituted, import, outlet valve seat are connected by a support 5, and valve element connection one opens and closes operating mechanism 6, described
Valve element is made up of the valve element of a tubular import, two valve element nestings of outlet, import, two valve element sliding sleeve floating connections of outlet,
A compression spring 7 is provided with the inner chamber body of two valve elements in left and right, is provided with sealing in import, the mating surface of two valve elements of outlet
Part, is each provided with valve core through hole 8,9 in import, outlet valve seat, has the through hole 10, outlet valve of a thin-and-long on inlet spool
Through hole 11 is provided with the bottom surface of core.It is characterized in that：Long and narrow through hole on valve element and inlet spool on import valve seat is being opened
All the time communicate during closing, be exactly the stroke of the length more than keying operating mechanism of long and narrow hole, import valve seat leads to during unlatching
Hole and the lower end aligned of the long and narrow through hole of inlet spool, lead to as valve element decline import valve seat through-hole is long and narrow with inlet spool during closing
The upper end alignment in hole.It is characterized in that：The diameter sum of the through hole on through hole and outlet valve core in outlet valve seat is less than keying
The stroke of operating mechanism, valve element valve opening in limit superior, valve element valve closing in limit inferior.It is characterized in that：Entering
The sealing member both sides arranged in mouth, the mating surface of two valve elements of outlet are O-ring seals 12, and middle is metallic elastic piston ring 13,
Described metallic elastic piston ring is an annulus, and centre has Z-shaped otch to overlap mouth 14, overlaps mouth and can play telescopic action.
15 is the axis projection of inlet spool in figure 3.
During use, when high pressure valve is in opening, the through hole of import valve seat is connected with the through hole of inlet spool,
And outlet valve seat is communicated when opening with outlet valve core, now high-pressure medium flows through high pressure valve.When high pressure valve is closed, open
Closed operation mechanism moves down a stroke, as the greatest length size of the long and narrow through hole on inlet spool is more than keying operating mechanism
Stroke.When therefore in off position, the through hole of import valve seat remains what is communicated with the through hole of inlet spool, general selection
Be the length of long and narrow through hole on inlet spool more than the stroke for opening and closing operating mechanism, outlet valve seat is with outlet valve core when closed
As the diameter sum of the through hole on the through hole and outlet valve core in outlet valve seat is less than the stroke for opening and closing operating mechanism, therefore
It is not communicated with during closing.Upon closing, the closing cylinder being internally formed that the medium of high pressure coordinates in import, two valve elements of outlet
Be fed the first transaction of a day's business power be produced on mouth, the inwall axial projective area of two valve elements of outlet in shape space, be exactly the work on sealing surface
It is firmly synchronous with the raising of pressure medium to improve, substantially increase the sealing effectiveness of the sealing surface of valve element and valve seat.
And as valve element is import, two valve elements cooperation compositions of outlet, has certain winding degree between them, can overcome the disadvantages that and enter
What is produced during the processing of the sealing surface for going out two valve seats is not parallel.So as to the sealing property of the high pressure valve for more making this practical is carried
Height, prevents seepage.
The characteristics of self sealss high pressure valve：
1st, without seal request between valve component and valve rod and connecting plate.
2nd, in the state of open and close, import valve seat is connected all the time valve with the inner chamber of inlet spool.
3rd, in the state of open and close, two groups of left and right sealing surface is all the time in sealing state for valve.
4th, inlet spool and outlet valve core are the connections of floating sliding sleeve.
5th, the cooperation of import and export valve element has gap, between mating surface in addition to seal with O ring, increased one it is heavy
Folded mouth metallic elastic piston ring.
Claims (2)
1. a kind of self sealss high pressure valve, including import valve seat, outlet valve seat, it is characterised in that：In import valve seat and outlet valve seat
Between have a combination valve core, import valve seat and outlet valve seat to be connected by a support, combination valve core connection one open and close operating mechanism, institute
The combination valve core stated constitutes a closing cylindrical body with inlet spool and outlet valve core, and inlet spool and outlet valve core sliding sleeve are floating
Dynamic connection, is provided with the inner chamber body of combination valve core in the mating surface of a compression spring, inlet spool and outlet valve core and arranges
There is sealing member, through hole is each provided with import valve seat and outlet valve seat, be provided with the bottom surface of inlet spool and outlet valve core
Through hole, the through hole on inlet spool are the through holes of a thin-and-long, and its length dimension is more than the stroke for opening and closing operating mechanism, outlet
The diameter sum of the through hole on through hole and outlet valve core on valve seat is less than the stroke for opening and closing operating mechanism.
2. a kind of self sealss high pressure valve as described in claim 1, it is characterised in that：In inlet spool, two valves of outlet valve core
It is O-ring seals that the sealing member arranged in the mating surface of core is both sides, and middle is metallic elastic piston ring, and described metallic elastic rises
Enclose as an annulus, there is Z-shaped otch the centre of annulus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210502275.6A CN103062428B (en) | 2012-11-30 | 2012-11-30 | self-sealing high-pressure valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210502275.6A CN103062428B (en) | 2012-11-30 | 2012-11-30 | self-sealing high-pressure valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103062428A CN103062428A (en) | 2013-04-24 |
| CN103062428B true CN103062428B (en) | 2017-03-22 |
Family
ID=48105207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210502275.6A Expired - Fee Related CN103062428B (en) | 2012-11-30 | 2012-11-30 | self-sealing high-pressure valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103062428B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4640302A (en) * | 1986-06-09 | 1987-02-03 | Impey Thomas T | Double disc gate valve |
| AU2003254050A1 (en) * | 2002-07-22 | 2004-02-09 | Mdc Vacuum Products Corporation | High-vacuum valve with retractable valve plate to eliminate abrasion |
| CN2685672Y (en) * | 2003-11-21 | 2005-03-16 | 林德宽 | Gate valve with adjustable combined spool |
| CN102094988B (en) * | 2010-12-09 | 2012-05-16 | 无锡市亚迪流体控制技术有限公司 | Parallel gate valve |
| CN202171025U (en) * | 2011-08-19 | 2012-03-21 | 南通市电站阀门有限公司 | Gate valve with balanced type valve plate |
| CN202992231U (en) * | 2012-11-30 | 2013-06-12 | 上海仪杰自动化设备有限公司 | Self-sealing high-pressure valve |
-
2012
- 2012-11-30 CN CN201210502275.6A patent/CN103062428B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN103062428A (en) | 2013-04-24 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| 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: 20170322 |