CN104315217B - A kind of stop valve with high security performance - Google Patents
A kind of stop valve with high security performance Download PDFInfo
- Publication number
- CN104315217B CN104315217B CN201410498616.6A CN201410498616A CN104315217B CN 104315217 B CN104315217 B CN 104315217B CN 201410498616 A CN201410498616 A CN 201410498616A CN 104315217 B CN104315217 B CN 104315217B
- Authority
- CN
- China
- Prior art keywords
- valve
- collar
- cutting ferrule
- spool
- 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.)
- Active
Links
- 238000002955 isolation Methods 0.000 claims abstract description 17
- 230000000994 depressed Effects 0.000 claims abstract description 11
- 238000010276 construction Methods 0.000 claims description 6
- 239000012530 fluid Substances 0.000 abstract description 10
- 230000037361 pathway Effects 0.000 abstract description 6
- 230000000694 effects Effects 0.000 description 8
- 238000007789 sealing Methods 0.000 description 5
- 102000010970 Connexin Human genes 0.000 description 2
- 108050001175 Connexin Proteins 0.000 description 2
- 210000003976 Gap Junctions Anatomy 0.000 description 2
- 238000005253 cladding Methods 0.000 description 2
- 210000004907 Glands Anatomy 0.000 description 1
- 101700078171 KNTC1 Proteins 0.000 description 1
- 208000008425 Protein Deficiency Diseases 0.000 description 1
- 241000826860 Trapezium Species 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002035 prolonged Effects 0.000 description 1
Abstract
The present invention discloses a kind of stop valve with high security performance, and including valve body, valve gap, valve rod, valve seat and spool, valve inner center is provided with valve pocket, is provided with depressed part in the middle of described valve seat, and valve gap is fixed on valve seat top；Described stem bottom is provided with pressure reduction structure, and described pressure reduction structure includes multiple decompression collar being linked in stem outer circumference；Described spool is externally provided with slow pressure rubber layer；Face on the basis of valve body section, two, valve pocket both sides circulation road is set in parallel, and bottom described second channel outer wall and valve pocket, vertically wall angle α is 60 degree；Described valve rod and valve base chamber are provided with isolation pad group；Described stop valve two ends medium is provided with inside and outside cutting ferrule on importing and exporting, and is provided with nut outside described outer cutting ferrule.The dual pathways uses the structure of tilting, contributes to reducing fluid resistance, and the internal dual pathways is parallel, it is simple to current mobile equilibrium so that while required power is greatly reduced during opening and closing, improves valve stability, extends valve service life.
Description
Technical field
The present invention relates to a kind of stop valve with high security performance.
Background technology
Stop valve, is also pipe valve, is most popular a kind of valve, and it is the most extensively by joyous
Meet, be due to during opening and closing between sealing surface frictional force little, relatively durable, Lift is not
Greatly, easy to manufacture, easy to maintenance, it is applicable not only to mesolow, and is applicable to high pressure.
The Guan Bi principle of stop valve is, relies on valve thick stick pressure, makes valve core sealed cover tight with sealing surface of seat
Closely connected conjunction, stops medium circulation.
Stop valve is only permitted medium one-way flow, directional during installation.The structure length of stop valve
More than gate valve, fluid resistance is big simultaneously, and valve rod directly bears the pressure of liquid, the most easily damages
Bad, during longtime running, bury potential safety hazard.Stop valve and pipeline junction, easily reveal
Sealing reliability is the strongest.
Summary of the invention
The invention aims to overcome above deficiency, it is provided that one has high security performance
Stop valve.
The purpose of the present invention is achieved in that:
A kind of stop valve with high security performance of the present invention, including valve body, valve gap, valve rod,
Valve seat and spool, wherein, described valve inner is provided with valve pocket, and described valve pocket is positioned at described valve body
Center；Described valve seat is fixed on above described valve pocket, is provided with depressed part in the middle of described valve seat,
In the widest, middle narrow structure, described depressed part cross section is trapezoidal；Described valve gap is fixed on valve
Seat top；Described valve rod runs through valve gap, and bottom fixed spool extends to inside valve pocket, and top is prolonged
Extending outside valve body, described stem bottom is provided with pressure reduction structure, and described pressure reduction structure includes multiple
Be linked in the decompression collar of stem outer circumference, include the most successively first collar, second collar,
3rd collar and the 4th collar, described first collar second collar and the 3rd set ring diameter increase successively
Greatly, big bottom, top is little, in inverted steps formula structure；Described 4th collar and the second collar size
Identical, described 3rd collar and the 4th collar form stepped construction；Described spool is externally provided with slow
Pressure rubber layer, described slow pressure rubber layer is fitted in spool surrounding outer surface, described slow pressure rubber layer
Thin upper end, bottom is thick, under narrow wide structure；Described valve pocket is respectively provided on two sides with first-class passage
With second passage, described first-class passage is the most inclined in valve body with second passage to be set
Putting, face on the basis of valve body section, described two circulation roads are set in parallel, described second
Bottom channel outer wall and valve pocket, vertically wall angle α is 60 degree, described first-class passage and the
Two circulation roads connect stop valve two ends medium and import and export；Described valve rod and valve base chamber are provided with isolation
Shim pack, described isolation pad group is arranged at valve rod upper end position, is positioned at below valve gap, described
Isolation pad group is coated on described stem exterior, in multiple gasket construction, wraps the most successively
Include the first pad, the second pad, the 3rd pad and the 4th pad, described first spacer thickness
H1, the second spacer thickness H2, size between the 3rd spacer thickness H3 and the 4th spacer thickness H4
For H1 < H2 < H4 < H3；Described stop valve two ends medium is provided with inside and outside cutting ferrule on importing and exporting,
Described outer cutting ferrule is linked in stop valve two ends medium and imports and exports outside, and described interior cutting ferrule is fitted in and cuts
Only valve two ends medium is imported and exported internal, and described interior cutting ferrule cross section is tied in inverted steps formula from bottom to top
Structure, is provided with nut outside described outer cutting ferrule, described outer cutting ferrule and described valve body pass through nut screwing clamping
Realize fixing.
Above-mentioned a kind of stop valve with high security performance, wherein, described spool cross section is in falling
Trapezium structure.
Above-mentioned a kind of stop valve with high security performance, wherein, described valve stem tip connects
There is handwheel.
Compared with prior art, advantages of the present invention has:
1, the dual pathways uses the structure of tilting, contributes to reducing fluid resistance, according to up to ten thousand
Secondary scientific experimentation, bottom two circulation road outer walls with valve pocket, vertically wall angle α is 60
When spending, fluid produced resistance during inflow and outflow is minimum, and the internal dual pathways is parallel,
It is easy to current mobile equilibrium so that while required power is greatly reduced during opening and closing, improves
Valve stability, extends valve service life.
2, inside and outside cutting ferrule is set in medium import and export, is covered with outward and helps improve valve and medium
The stability that pipeline connects, improves the fixed effect of cutting ferrule, arranges and has inverted steps formula structure
Interior cutting ferrule is effectively reduced import and export fluid pressure, can be prevented effectively from medium and the feelings of leakage occur
Condition occurs.
3, valve rod and valve base chamber are provided with isolation pad group, while cladding valve rod, are positioned at valve
Lid lower end, is greatly improved valve rod, valve seat, the sealing of valve gap junction；Multiple pad sets
Meter, uses the isolation pad of multi-thickness, and thickness is along with height change from bottom to top, can be significantly
Improve isolation effect, improve using effect.
4, stem bottom is provided with the mechanism of decompressor, uses multiple pressure reducing sleeve ring structure to be formed irregularly
Stepped, when valve rod is pressed downward against, helps burden valve rod pressure, be greatly improved valve rod
Load performance, improve valve rod using effect.
5, it is provided with slow pressure rubber layer outside spool, during closure valve, can help to reduce spool four
The fluid pressure in week, extends spool service life.
6. being provided with depressed part in the middle of valve seat, when tightening valve, hands can be held in depressed part, convenient
Operation.
Accompanying drawing explanation
Fig. 1 is the sectional view of the present invention.
Fig. 2 be the present invention sectional view in enlarged drawing at isolation pad.
Fig. 3 be the present invention sectional view in enlarged drawing at inside and outside cutting ferrule.
Fig. 4 be the present invention sectional view in bottom valve pocket at enlarged drawing.
Detailed description of the invention
The invention will be further described below in conjunction with the accompanying drawings.
As it can be seen, a kind of stop valve with high security performance of the present invention, including valve body 1,
Valve gap 2, valve rod 3, valve seat 4 and spool 5, wherein, be provided with valve pocket 6 in described valve body 1, described
Valve pocket 6 is positioned at described valve body 1 center；Described valve seat 4 is fixed on above described valve pocket 6, institute
State and be provided with depressed part 41 in the middle of valve seat 4, in the widest, middle narrow structure, described depressed part 41
Cross section is trapezoidal；Described valve gap 2 is fixed on valve seat 4 top；Described valve rod 3 runs through valve gap 2, the end
It is internal that end fixed spool 5 extends to valve pocket 6, and it is outside that top extends to valve body 1, described valve rod 3
Bottom is provided with pressure reduction structure 7, and described pressure reduction structure 7 includes multiple being linked in subtracting of valve rod 3 periphery
Gland ring, includes first collar 71, second collar the 72, the 3rd collar 73 the most successively
And the 4th collar 74, described first collar 71, second collar 72 and the 3rd collar 73 diameter are successively
Increasing, big bottom, top is little, in inverted steps formula structure；Described 4th collar 74 and second collar
72 sizes are identical, and described 3rd collar 73 and the 4th collar 74 form stepped construction；Described valve
Core 5 is externally provided with slow pressure rubber layer 51, and described slow pressure rubber layer 51 is fitted in spool 5 surrounding appearance
Face, thin upper end, described slow pressure rubber layer 51 bottom is thick, under narrow wide structure；Described valve pocket 6
It is respectively provided on two sides with first-class passage 81 and second passage 82, described first-class passage 81 and the
Two circulation roads 82 are all inclined to set in valve body, face on the basis of valve body 1 section, and described two
Bar circulation road 81,82 is set in parallel, bottom described second passage 82 outer wall and valve pocket vertically
Wall angle α is 60 degree, and described first-class passage 81 is connected stop valve with second passage 82
Two ends medium imports and exports 9；Isolation pad group 10 it is provided with between described valve rod 1 and valve seat 4, described
Isolation pad group 10 is arranged at valve rod 3 upper end position, is positioned at below valve gap 2, described isolation pad
It is outside that group 10 is coated on described valve rod 3, in multiple gasket construction, includes the most successively
One pad 101, the second pad the 102, the 3rd pad 103 and the 4th pad 104, described first pad
Sheet thickness H1, the second spacer thickness H2, the 3rd spacer thickness H3 and the 4th spacer thickness H4 it
Between size be H1 < H2 < H4 < H3；It is provided with inside and outside in described stop valve two ends medium import and export 9
Cutting ferrule 11,12, described outer cutting ferrule 11 is linked in stop valve two ends medium and imports and exports 9 outsides, institute
State interior cutting ferrule 12 and be fitted in medium import and export 9 inside, stop valve two ends, described interior cutting ferrule 12 cross section
From bottom to top in inverted steps formula structure, described outer cutting ferrule 11 is outside is provided with nut 13, described wild card
It is fixing that set 11 and described valve body 1 tighten realization by nut 13.Described spool 5 cross section is inverted trapezoidal
Structure.Described valve rod 3 top connects handwheel 14.
Compared with prior art, advantages of the present invention has: the dual pathways uses the structure of tilting,
Contribute to reducing fluid resistance, according to scientific experimentations up to ten thousand time, when two circulation road outer walls with
When bottom valve pocket, vertical wall angle α is 60 degree, fluid is produced during inflow and outflow
Resistance minimum, and the internal dual pathways is parallel, it is simple to current mobile equilibrium so that open and close
While required power is greatly reduced when closing, improve valve stability, extend valve service life.
Medium import and export inside and outside cutting ferrule is set, be covered with outward help improve valve be connected with medium pipeline
Stability, improve the fixed effect of cutting ferrule, arrange there is the interior cutting ferrule of inverted steps formula structure can
Effectively reduce import and export fluid pressure, medium can be prevented effectively from and occur the situation of leakage to occur.
Valve rod and valve base chamber are provided with isolation pad group, while cladding valve rod, are positioned at valve gap lower end,
It is greatly improved valve rod, valve seat, the sealing of valve gap junction；Multiple gasket design, uses
The isolation pad of multi-thickness, is greatly improved isolation effect, improves using effect.At the bottom of valve rod
Portion is provided with the mechanism of decompressor, uses multiple pressure reducing sleeve ring structure to be formed the most stepped, at valve rod
When being pressed downward against, help burden valve rod pressure, be greatly improved the load performance of valve rod, carry
High valve rod using effect.It is provided with slow pressure rubber layer outside spool, during closure valve, can help to subtract
The fluid pressure of small valve core surrounding, extends spool service life.Depressed part it is provided with in the middle of valve seat,
When tightening valve, hands can be held in depressed part, convenient operation.
Above example is served only for being further described the present invention, it is impossible to be interpreted as this
The restriction of bright protection domain, those skilled in the art makes according to the foregoing of the present invention
Some nonessential improvement and adjustment belong to protection scope of the present invention.
Claims (1)
1. there is a stop valve for high security performance, including valve body, valve gap, valve rod,
Valve seat and spool, it is characterised in that described valve inner is provided with valve pocket, described valve pocket is positioned at institute
State valve body center；Described valve seat is fixed on above described valve pocket, is provided with in the middle of described valve seat
Depressed part, in the widest, middle narrow structure, described depressed part cross section is trapezoidal；Described valve gap
It is fixed on valve seat top；Described valve rod runs through valve gap, and bottom fixed spool extends to inside valve pocket,
Top extends to outside valve body, and described stem bottom is provided with pressure reduction structure, described pressure reduction structure bag
Include multiple decompression collar being linked in stem outer circumference, include the most successively first collar,
Two collars, the 3rd collar and the 4th collar, described first collar, second collar and the 3rd collar
Diameter increases successively, and big bottom, top is little, in inverted steps formula structure；Described 4th collar and
Two collar sizes are identical, and described 3rd collar and the 4th collar form stepped construction；Described valve
Core is externally provided with slow pressure rubber layer, and described slow pressure rubber layer is fitted in spool surrounding outer surface, described
Slow pressure thin upper end, rubber layer bottom is thick, under narrow wide structure；Described valve pocket is respectively provided on two sides with
First-class passage and second passage, described first-class passage and second passage are equal in valve body
It is inclined to set, face on the basis of valve body section, described first-class passage and described second circulation
Road is set in parallel, and bottom described second channel outer wall and valve pocket, vertically wall angle α is
60 degree, described first-class passage is connected stop valve two ends medium and imports and exports with second passage；Institute
Stating valve rod and valve base chamber is provided with isolation pad group, described isolation pad group is arranged at valve rod upper end
Position, is positioned at below valve gap, and described isolation pad group is coated on described stem exterior, in multiple
Gasket construction, includes the first pad, the second pad, the 3rd pad and the 4th the most successively
Pad, described first spacer thickness H1, the second spacer thickness H2, the 3rd spacer thickness H3 with
Between 4th spacer thickness H4, size is H1 < H2 < H4 < H3；Described stop valve two ends medium enters
Being provided with inside and outside cutting ferrule in outlet, described outer cutting ferrule is linked in outside the medium import and export of stop valve two ends
Portion, described interior cutting ferrule is fitted in stop valve two ends medium and imports and exports internal, described interior cutting ferrule cross section
From bottom to top in inverted steps formula structure, outside described outer cutting ferrule, be provided with nut, described outer cutting ferrule with
Described valve body realizes fixing by nut screwing clamping；Described spool cross section is inverted trapezoidal structure；Described
Valve stem tip connects handwheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410498616.6A CN104315217B (en) | 2014-09-25 | A kind of stop valve with high security performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410498616.6A CN104315217B (en) | 2014-09-25 | A kind of stop valve with high security performance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104315217A CN104315217A (en) | 2015-01-28 |
| CN104315217B true CN104315217B (en) | 2017-01-04 |
Family
ID=
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5830575A (en) * | 1981-08-14 | 1983-02-23 | Yamatake Honeywell Co Ltd | Valve |
| CN201180845Y (en) * | 2008-03-19 | 2009-01-14 | 浙江沃尔达铜业有限公司 | Plastic stop valve with improved structure |
| WO2011055371A1 (en) * | 2009-11-08 | 2011-05-12 | Ham-Let (Israel - Canada ) Ltd. | Easily mountable needle valve |
| CN202056329U (en) * | 2011-05-18 | 2011-11-30 | 南通市力沛流体阀业有限公司 | Instrument valve |
| CN103697171A (en) * | 2012-09-27 | 2014-04-02 | 天津渤海晟机械设备配件有限公司 | Externally-threaded needle valve |
| CN204153263U (en) * | 2014-09-25 | 2015-02-11 | 江苏华太电力仪表有限公司 | A kind of stop valve with high Safety performance |
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5830575A (en) * | 1981-08-14 | 1983-02-23 | Yamatake Honeywell Co Ltd | Valve |
| CN201180845Y (en) * | 2008-03-19 | 2009-01-14 | 浙江沃尔达铜业有限公司 | Plastic stop valve with improved structure |
| WO2011055371A1 (en) * | 2009-11-08 | 2011-05-12 | Ham-Let (Israel - Canada ) Ltd. | Easily mountable needle valve |
| CN202056329U (en) * | 2011-05-18 | 2011-11-30 | 南通市力沛流体阀业有限公司 | Instrument valve |
| CN103697171A (en) * | 2012-09-27 | 2014-04-02 | 天津渤海晟机械设备配件有限公司 | Externally-threaded needle valve |
| CN204153263U (en) * | 2014-09-25 | 2015-02-11 | 江苏华太电力仪表有限公司 | A kind of stop valve with high Safety performance |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104315217B (en) | A kind of stop valve with high security performance | |
| CN202418609U (en) | Guiding and sealing valve for valve seat | |
| CN204153263U (en) | A kind of stop valve with high Safety performance | |
| CN203963182U (en) | A kind of cutting ferrule stop valve | |
| CN206377285U (en) | A kind of cutoff valve with high sealing performance | |
| CN104315217A (en) | Stop valve with extra-high safety performance | |
| CN103629373B (en) | High-class soft-sealing safety butterfly valve | |
| CN203686208U (en) | High-temperature fuel gas plug valve | |
| CN104121382B (en) | Anti-coking gate valve | |
| CN104315157B (en) | A kind of low temperature needle stop valve of high sealing performance | |
| CN203322336U (en) | Petroleum transportation pipeline pressing-resistant plate | |
| CN207178788U (en) | Magnetic Control gate valve with anti-interference function | |
| CN206668985U (en) | A kind of pressure-resistant valve rod and valve seat sealing mechanism | |
| CN206234376U (en) | A kind of new high-sealing butterfly valve | |
| CN207297901U (en) | A kind of dark valve with cut-off spool | |
| CN206754425U (en) | A kind of bellows Wedge Gate Valves | |
| CN205559848U (en) | Ball valve seals up disk seat | |
| CN104089062A (en) | Cutting ferrule stop valve | |
| CN203442152U (en) | Pilot-type stop valve | |
| CN205423863U (en) | Lug formula butterfly valve | |
| CN204358146U (en) | With the direct-exhausting type solenoid blowout valve of flow guide device | |
| CN203585363U (en) | Wafer butterfly valve with closed leaf-proof valve seat | |
| CN203051782U (en) | Leakproof chlorine gas cut-off valve | |
| CN209197812U (en) | A kind of underground internal magnet type electromagnetic flowmeter electrode special seal and pressure bearing structure | |
| CN208204043U (en) | A kind of low temperature aluminum angle valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant |