CN205064888U - Flat gate valve - Google Patents
Flat gate valve Download PDFInfo
- Publication number
- CN205064888U CN205064888U CN201520864679.9U CN201520864679U CN205064888U CN 205064888 U CN205064888 U CN 205064888U CN 201520864679 U CN201520864679 U CN 201520864679U CN 205064888 U CN205064888 U CN 205064888U
- Authority
- CN
- China
- Prior art keywords
- valve
- described valve
- flashboard
- gap
- 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
- 239000000945 filler Substances 0.000 claims abstract description 19
- 125000006850 spacer group Chemical group 0.000 claims abstract description 8
- 229910001256 stainless steel alloy Inorganic materials 0.000 claims abstract description 5
- 239000004519 grease Substances 0.000 claims description 46
- 238000007789 sealing Methods 0.000 claims description 19
- 230000009970 fire resistant effect Effects 0.000 claims description 11
- 239000010865 sewage Substances 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 6
- 230000000903 blocking effect Effects 0.000 claims description 4
- 238000007667 floating Methods 0.000 claims description 4
- 238000012856 packing Methods 0.000 abstract description 8
- 238000001125 extrusion Methods 0.000 abstract 1
- 238000009434 installation Methods 0.000 abstract 1
- 230000002265 prevention Effects 0.000 abstract 1
- 230000003068 static effect Effects 0.000 abstract 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910002804 graphite Inorganic materials 0.000 description 4
- 239000010439 graphite Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Landscapes
- Check Valves (AREA)
Abstract
The utility model discloses a flat gate valve, including installation valve body and valve gap together, the valve body both sides are equipped with pipeline intercommunication mouth, still include flashboard unit and disk seat unit, be equipped with the packing seal device between valve rod and the valve gap, the packing seal device is including arranging the filler between valve rod and the valve gap in, be equipped with the spacer ring between packing, be equipped with first notes fat hole on the spacer ring, the downthehole antistatic device that is equipped with of first notes fat, antistatic device includes conducting sphere and conductive spring, conducting sphere and conductive spring extrusion are between valve rod and valve gap, be equipped with the stainless steel alloy layer on the sealed face of disk seat bracing ring and flashboard respectively. The utility model discloses have good prevent static, fire prevention function.
Description
Technical field
The utility model relates to gate valve technical field, particularly relates to a kind of plate valve.
Background technique
The slide-valve of plate valve to be a kind of closure member be parallel gate plate, phase snug fit between the flashboard of plate valve with valve seat.Plate valve is widely used in the pipe-line system of oil, chemical industry, natural gas and correlated product.
Chinese utility model patent CN201615275U discloses a kind of light flat gate valve, be provided with preloading spring between the valve seat of this light flat gate valve and valve body and adopt Ο type to seal to form the floating valve seat structural type of flashboard both sides, polytetrafluoro seal ring is inlayed at the sealing surface place of valve seat, and on the sealing surface of valve seat surfacing cemented carbide, formed double seal.Flashboard and the valve seat relative movement of this light flat gate valve can produce electrostatic, and its electrostatic-proof function has much room for improvement.
Model utility content
Technical problem to be solved in the utility model is: provide a kind of plate valve, this plate valve not only have flow resistance little, open and close flexibly, long service life, good seal performance, the feature such as safe and reliable, but also there is good antistatic, fire-proof function.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of plate valve, comprises the valve body and valve gap that are installed together, and described valve body both sides are provided with pipeline communication mouth, and described valve gap is provided with valve rod mounting hole; Flashboard unit comprises valve rod, and one end of described valve rod is power intake, and the other end of described valve rod runs through described valve rod mounting hole and stretches into described valve inner and be installed with flashboard; Floating valve seat bracing ring is provided with in described pipeline communication mouth, the sealing surface of described valve seat bracing ring and described flashboard is respectively equipped with Stainless Steel Alloy layer, described valve seat bracing ring is installed with valve seat, be provided with preloading spring between described valve seat bracing ring and described valve body, described valve seat relies on described flashboard by described valve seat bracing ring by described preloading spring; Stuffing seal is provided with between described valve rod and valve gap, described stuffing seal comprises the filler be placed between described valve rod and valve gap, spacer ring is provided with between described filler, described spacer ring is provided with the first greasing hole, anti-static device is provided with in described first greasing hole, described anti-static device comprises conducting sphere and power spring, and described conducting sphere and power spring are squeezed between described valve rod and described valve gap.
Improve as one, described valve gap is provided with the first grease pouring valve, and described first grease pouring valve communicates with described first greasing hole.
Improve as one, between described valve gap and described first grease pouring valve, be provided with the first safety check.
Improve as one, described valve seat bracing ring is provided with the second greasing hole, and described valve body is provided with the second grease pouring valve, and described second grease pouring valve communicates with described second greasing hole.
Improve as one, between described valve body and described second grease pouring valve, be provided with the second safety check.
Improve as one, the outer circumferential face of described valve seat bracing ring is provided with first ring connected in star and the second annular groove, is provided with rubber seal in described first ring connected in star, is provided with fire resistant seal filler in described second annular groove.
Improve as one, be clamped with fire resistant seal pad between described valve body and described valve gap, between the external diameter of described valve gap and the internal diameter of described valve body, be provided with Ο RunddichtringO.
Improve as one, the aperture, inner side of the valve rod mounting hole on described valve gap is taper mouth, and described valve rod is provided with the tapered portion matched with described taper mouth; Described valve rod is provided with spacing adjusting nut near described flashboard one end.
Improve as one, described flashboard is provided with pod apertures.
Improve as one, described valve body lower portion is provided with sewage draining exit, and described sewage draining exit is provided with drainage device, and described drainage device comprises the ball valve and blocking that link together.
The technique effect of employing acquired by technique scheme is:
Owing to being provided with anti-static device in described first greasing hole, described anti-static device comprises conducting sphere and power spring, described conducting sphere and power spring are squeezed between described valve rod and described valve gap, flashboard and the fricative electrostatic of valve seat are sequentially passed through valve rod, conducting sphere, power spring, valve gap and pipeline are led away, avoid the breaking out of fire because of electrostatic, the sealing surface of described valve seat bracing ring and described flashboard is respectively equipped with Stainless Steel Alloy layer, formed between described valve seat bracing ring and described flashboard and firmly seal, once catch fire, described valve seat damage, described valve seat bracing ring is pressed to described flashboard by described preloading spring, the hard sealing surface of the hard sealing surface on described valve seat bracing ring and described flashboard is fitted, realize sealing, stop medium to external leakage, fire is avoided to expand.
Because described valve gap is provided with the first grease pouring valve, described first grease pouring valve communicates with described first greasing hole, the first safety check is provided with between described valve gap and described first grease pouring valve, grease seal is realized to injecting grease between described valve rod and described valve gap by the first grease pouring valve, if packing seal damages to some extent and causes leakage, inject seal gease by the first grease pouring valve and realize secondary seal, to obtain temporary seal request, install under the first safety check can realize band pressure condition and change grease pouring valve.
Because described valve seat bracing ring is provided with the second greasing hole, described valve body is provided with the second grease pouring valve, described second grease pouring valve communicates with described second greasing hole, the second safety check is provided with between described valve body and described second grease pouring valve, grease seal is realized to injecting grease between described valve seat bracing ring and described flashboard by the second grease pouring valve, also inject seal gease by the second grease pouring valve and realize secondary seal, to obtain temporary seal request, install under the second safety check can realize band pressure condition and change grease pouring valve.
Outer circumferential face due to described valve seat bracing ring is provided with first ring connected in star and the second annular groove, rubber seal is provided with in described first ring connected in star, play good seal performance, fire resistant seal filler is provided with in described second annular groove, once catch fire, rubber seal is damaged, and fire resistant seal filler still can play seal action.
Owing to being clamped with fire resistant seal pad between described valve body and described valve gap, Ο RunddichtringO is provided with between the external diameter of described valve gap and the internal diameter of described valve body, the sealability between described valve body and described valve gap can be ensured, even if in the state of catching fire, fire resistant seal pad still can provide reliable sealing.
Aperture, inner side due to the valve rod mounting hole on described valve gap is taper mouth, and described valve rod is provided with the tapered portion matched with described taper mouth; Described valve rod is provided with spacing adjusting nut near described flashboard one end, poppet stem can make to form sealing pair between valve rod and valve gap, realize the function of replacing filler with pressure, relative to the position of described valve seat bracing ring when regulating the adjustable flashboard of spacing adjusting nut to close.
Because described flashboard is provided with pod apertures, flashboard coincide with valve seat all the time, and flashboard is energy automated cleaning flashboard and sealing surface of seat when opening and closing, ensure good sealability, be with the Flow characteristics that the flashboard of pod apertures has had, in equal percentage characteristics, modulability is good, and the pressure loss is also little.
Because described valve body lower portion is provided with sewage draining exit, described sewage draining exit is provided with drainage device, described drainage device comprises the ball valve and blocking that link together, can realize safe blowdown.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the structure sectional view of the utility model embodiment;
Fig. 2 is the enlarged view in A portion in Fig. 1;
Fig. 3 is the enlarged view in B portion in Fig. 1;
Fig. 4 is the enlarged view in C portion in Fig. 1;
Fig. 5 is the structural representation that valve gap taper mouth coordinates with valve rod tapered portion;
Fig. 6 is the structural representation of blowdown valve;
In figure, 1-valve body, 2-valve gap, 3-drainage device, 31-ball valve, 32-blocks, 4-valve rod, 5-flashboard, 6-spacer ring, 601-conducting sphere, 602-power spring, 61-first greasing hole, 7-filler, 8-valve seat, 9-preloading spring, 10-valve seat bracing ring, 101-second greasing hole, the spacing adjusting nut of 11-, 12-fire resistant seal pad, 13-Ο RunddichtringO, 14-support, 15-drive unit, 161-first grease pouring valve, 162-first safety check, 163-second grease pouring valve, 164-second safety check, 171-first ring connected in star, 172-second annular groove.
Embodiment
As shown in Figure 1, a kind of plate valve, comprise the valve body 1 and valve gap 2 that are installed together, valve body 1 both sides are provided with pipeline communication mouth, and valve gap 2 is provided with valve rod 4 mounting hole.
As shown in Figure 4, between valve body 1 and valve gap 2, be clamped with fire resistant seal pad 12, between the external diameter of valve gap 2 and the internal diameter of valve body 1, be provided with Ο RunddichtringO 13, improve the sealability between valve body 1 and valve gap 2.
As shown in Figure 3, stuffing seal is provided with between valve rod 4 and valve gap 2, stuffing seal comprises the filler 7 be placed between valve rod 4 and valve gap 2, stuffing seal carries out motive sealing to valve rod 4, filler 7 using high priority graphite filler in stuffing seal, graphite packing not only can be prevented fires, and flashboard 5 and valve seat 8 electrostatic produced that moves is led away by valve rod 4, graphite packing, valve gap 2 and pipeline.Hold-down grid is sheathed on valve rod 4, for compressing filler 7, spacer ring 6 is provided with between filler, spacer ring 6 is provided with the first greasing hole 61, anti-static device is provided with in first greasing hole 61, anti-static device comprises conducting sphere 601 and power spring 602, and conducting sphere 601 and power spring 602 are squeezed between valve rod 4 and valve gap 2.The electrostatic that flashboard 5 and valve seat 8 relative movement produce can sequentially pass through valve rod 4, conducting sphere 601, power spring 602, valve gap 2 and pipeline and lead away, avoids breaking out of fire.
Valve gap 2 is provided with the first grease pouring valve 161, first grease pouring valve 161 communicates with the first greasing hole 61, the first safety check 162 is provided with between valve gap 2 and the first grease pouring valve 161, grease seal is realized to injecting grease between valve rod 4 and valve gap 2 by the first grease pouring valve 161, if packing seal damages to some extent and causes leakage, inject seal gease by the first grease pouring valve 161 and realize secondary seal, to obtain temporary seal request, install under the first safety check 162 can realize band pressure condition and change the first grease pouring valve.
As shown in Figure 1, one end of valve rod 4 is power intake, mounting bracket 14 on valve gap 2, power intake connecting drive device 15, the other end of valve rod 4 stretches into valve body 1 inside and is installed with flashboard 5, and flashboard 5 is provided with pod apertures, cemented carbide is welded with on pod apertures surface, make flashboard 5 in opening and closing process, washing away of more resistance to circulation medium, thus improve the life-span of flashboard 5.Valve rod 4 is provided with spacing adjusting nut 11 near flashboard 5 one end, relative to the position of valve seat bracing ring 10 when regulating the adjustable flashboard 5 of spacing adjusting nut 11 to close.
As shown in Figure 2, be provided with floating valve seat bracing ring 10 in pipeline communication mouth, valve seat bracing ring 10 can adopt metallic material.Valve seat bracing ring 10 and the sealing surface of described flashboard 5 are respectively equipped with Stainless Steel Alloy layer.Valve seat bracing ring 10 is installed with valve seat 8, valve seat 8 can adopt soft sealing material (such as PTEE), formed between valve seat bracing ring 10 and described flashboard 5 and firmly seal, once catch fire, valve seat 8 damages, and valve seat bracing ring 10 pushes up to flashboard 5 by the preloading spring 9 be provided with between valve seat bracing ring 10 and valve body 1, the hard sealing surface of the hard sealing surface on valve seat bracing ring 10 and flashboard is fitted and realizes sealing, stop medium to external leakage, avoid fire to expand.Valve seat 8, by cryogenic treatment press-in valve seat bracing ring 10, recovers normal temperature rear valve base 8 and expands in valve seat bracing ring 10, realize interference fit, guarantee that valve seat 8 in use can not come off.When overpressure, there is resiliently deformable in valve seat 8, and the sealing surface on valve seat bracing ring 10 contacts to form with flashboard 5 sealing surface and firmly seals, and ensures that valve seat 8 can not the deformation failure because of excessive compression while guaranteeing sealability.
As shown in Figure 3, the outer circumferential face of valve seat bracing ring 10 is provided with first ring connected in star 171 and the second annular groove 172, rubber seal is provided with in first ring connected in star 171, to improve sealability, fire resistant seal filler (graphite packing of preferred flexible) is provided with in second annular groove 172, once catch fire, rubber seal is damaged, and fire resistant seal filler still can play seal action.Valve seat bracing ring 10 is provided with the second greasing hole 101, valve body 1 is provided with the second grease pouring valve 163, second grease pouring valve 163 communicates with the second greasing hole 101, the second safety check 164 is provided with between valve seat bracing ring 10 and the second grease pouring valve 163, grease seal is realized to injecting grease between valve seat bracing ring 10 and flashboard 5 by the second grease pouring valve 163, also inject seal gease by the second grease pouring valve 163 and realize secondary seal, install under the second safety check 164 can realize band pressure condition and change the second grease pouring valve 163.
As shown in Figure 5, the aperture, inner side of the valve rod mounting hole on valve gap 2 is taper mouth, and valve rod 4 is provided with the tapered portion matched with taper mouth, and poppet stem 4 can make to form sealing pair between valve rod 4 and valve gap 2, realizes the function of replacing filler 7 with pressure.
As shown in Figure 6, valve body 1 bottom is provided with sewage draining exit, sewage draining exit is provided with drainage device 3, and drainage device 3 comprises the ball valve 31 and blocking 32 that link together, can realize online blowdown with pressure.
Claims (10)
1. a plate valve, comprising:
The valve body be installed together and valve gap, described valve body both sides are provided with pipeline communication mouth, and described valve gap is provided with valve rod mounting hole;
Flashboard unit, comprises valve rod, and one end of described valve rod is power intake, and the other end of described valve rod runs through described valve rod mounting hole and stretches into described valve inner and be installed with flashboard;
Valve seat unit, floating valve seat bracing ring is provided with in described pipeline communication mouth, the sealing surface of described valve seat bracing ring and described flashboard is respectively equipped with Stainless Steel Alloy layer, described valve seat bracing ring is installed with valve seat, be provided with preloading spring between described valve seat bracing ring and described valve body, described valve seat relies on described flashboard by described valve seat bracing ring by described preloading spring;
Be provided with stuffing seal between described valve rod and valve gap, described stuffing seal comprises the filler be placed between described valve rod and valve gap, is provided with spacer ring between described filler, and described spacer ring is provided with the first greasing hole; It is characterized in that,
Be provided with anti-static device in described first greasing hole, described anti-static device comprises conducting sphere and power spring, and described conducting sphere and power spring are squeezed between described valve rod and described valve gap.
2. plate valve as claimed in claim 1, it is characterized in that, described valve gap is provided with the first grease pouring valve, and described first grease pouring valve communicates with described first greasing hole.
3. plate valve as claimed in claim 2, is characterized in that, be provided with the first safety check between described valve gap and described first grease pouring valve.
4. plate valve as claimed in claim 1, it is characterized in that, described valve seat bracing ring is provided with the second greasing hole, and described valve body is provided with the second grease pouring valve, and described second grease pouring valve communicates with described second greasing hole.
5. plate valve as claimed in claim 4, is characterized in that, be provided with the second safety check between described valve body and described second grease pouring valve.
6. the plate valve according to any one of claim 1 to 5, it is characterized in that, the outer circumferential face of described valve seat bracing ring is provided with first ring connected in star and the second annular groove, is provided with rubber seal in described first ring connected in star, is provided with fire resistant seal filler in described second annular groove.
7. plate valve as claimed in claim 6, is characterized in that, be clamped with fire resistant seal pad between described valve body and described valve gap, be provided with Ο RunddichtringO between the external diameter of described valve gap and the internal diameter of described valve body.
8. plate valve as claimed in claim 7, it is characterized in that, the aperture, inner side of the valve rod mounting hole on described valve gap is taper mouth, and described valve rod is provided with the tapered portion matched with described taper mouth; Described valve rod is provided with spacing adjusting nut near described flashboard one end.
9. plate valve as claimed in claim 1, it is characterized in that, described flashboard is provided with pod apertures.
10. plate valve as claimed in claim 1, it is characterized in that, described valve body lower portion is provided with sewage draining exit, and described sewage draining exit is provided with drainage device, and described drainage device comprises the ball valve and blocking that link together.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520864679.9U CN205064888U (en) | 2015-10-31 | 2015-10-31 | Flat gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520864679.9U CN205064888U (en) | 2015-10-31 | 2015-10-31 | Flat gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205064888U true CN205064888U (en) | 2016-03-02 |
Family
ID=55391445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520864679.9U Expired - Fee Related CN205064888U (en) | 2015-10-31 | 2015-10-31 | Flat gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205064888U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107214327A (en) * | 2017-07-14 | 2017-09-29 | 山东钢铁股份有限公司 | A kind of continuous casting production bar shaped air curtain barricade wall and its installation method |
| 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 |
-
2015
- 2015-10-31 CN CN201520864679.9U patent/CN205064888U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107214327A (en) * | 2017-07-14 | 2017-09-29 | 山东钢铁股份有限公司 | A kind of continuous casting production bar shaped air curtain barricade wall and its installation method |
| 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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203906813U (en) | Pneumatic and manual normally-open emergency cut-off valve | |
| CN205064888U (en) | Flat gate valve | |
| CN201944327U (en) | Pipeline ball valve | |
| CN204942633U (en) | a check valve | |
| CN203309238U (en) | High-temperature high-pressure spring full lift safety valve | |
| CN203431230U (en) | Integrated type oblique ball valve | |
| CN109058477A (en) | A kind of metal sealing valve seat of superhigh temperature | |
| CN204610917U (en) | Forged steel pipeline soft seal plate valve | |
| CN210196532U (en) | Fixed ball valve | |
| CN203115195U (en) | Clack film check valve | |
| CN204985822U (en) | Resilient -sealed ball valve | |
| CN206617659U (en) | One kind automatically adjusts V-arrangement combined stuffing sealing structure | |
| CN207278923U (en) | A kind of double adapters of band lengthen welds buried fuel gas ball valve entirely | |
| CN212690850U (en) | Double eccentric butterfly valve-hard sealing valve seat | |
| CN203114607U (en) | High-temperature and fluid end pump head structure | |
| CN204420153U (en) | A kind of mud gate valve for oil well mud circulating system | |
| CN109114249A (en) | A kind of high temperature regulation ball valve | |
| CN206290750U (en) | A kind of two way seal ball seat of use V-shaped seal ring structure | |
| CN203627859U (en) | High-temperature-resistant and abrasion-resistant CTL (coal-to-liquids) special valve | |
| CN107917205A (en) | A kind of soft seal three-eccentric-butterfly-valve | |
| CN201723767U (en) | Floating ball valve | |
| CN206320324U (en) | A kind of high pressure line gate valve with pressure relief device | |
| CN202171033U (en) | Retreating type valve seat of upper mounted ball valve | |
| CN206409667U (en) | A kind of soft seal fixing ball valve | |
| CN205207705U (en) | Disk seat of eccentric butterfly valve |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160302 |