CN107631071A - Soft seal abrasion-proof slag-discharging valve - Google Patents
Soft seal abrasion-proof slag-discharging valve Download PDFInfo
- Publication number
- CN107631071A CN107631071A CN201711079821.9A CN201711079821A CN107631071A CN 107631071 A CN107631071 A CN 107631071A CN 201711079821 A CN201711079821 A CN 201711079821A CN 107631071 A CN107631071 A CN 107631071A
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- Prior art keywords
- import
- outlet
- valve
- valve body
- inner sleeve
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- 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.)
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- 238000007599 discharging Methods 0.000 title claims abstract description 15
- 230000008676 import Effects 0.000 claims abstract description 65
- 238000007789 sealing Methods 0.000 claims abstract description 47
- 239000000956 alloy Substances 0.000 claims abstract description 10
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 10
- 229920002521 macromolecule Polymers 0.000 claims description 12
- 229920002635 polyurethane Polymers 0.000 claims description 12
- 239000004814 polyurethane Substances 0.000 claims description 12
- 229910000599 Cr alloy Inorganic materials 0.000 claims description 10
- 239000000788 chromium alloy Substances 0.000 claims description 10
- 210000004907 gland Anatomy 0.000 claims description 7
- 210000000664 rectum Anatomy 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 229910002804 graphite Inorganic materials 0.000 claims description 6
- 239000010439 graphite Substances 0.000 claims description 6
- 238000012856 packing Methods 0.000 claims description 6
- 239000003082 abrasive agent Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 229910052804 chromium Inorganic materials 0.000 claims description 4
- 239000011651 chromium Substances 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 238000013461 design Methods 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 239000011257 shell material Substances 0.000 claims 3
- 238000012423 maintenance Methods 0.000 abstract description 2
- 239000002893 slag Substances 0.000 description 3
- 241000233855 Orchidaceae Species 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 241000537371 Fraxinus caroliniana Species 0.000 description 1
- 235000010891 Ptelea trifoliata Nutrition 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Landscapes
- Sliding Valves (AREA)
Abstract
Soft seal abrasion-proof slag-discharging valve, it is related to a kind of valve.Including valve body, bonnet, valve plate, screw mandrel, the upper end connecting bracket of bonnet, valve plate is arranged in valve body, and the inner of screw mandrel is fixedly connected through bonnet with the upper end of valve plate, and the outer end of screw mandrel is supported on support；Valve body import end connection import overcoat, import inner sleeve, the port of export connection outlet overcoat of valve body, outlet inner sleeve, import department's sealing that the port of export of import overcoat is put in valve body with valve body are fixed；Sealing filling is set between import overcoat and import inner sleeve, exit end face of the entrance point of inside and outside set respectively with valve body is exported and is brought into close contact, outlet jacket is bolted to connection by flange and valve body end face；Setting sealing is filled between exporting inner-outer sleeve, and import inner sleeve, outlet inner sleeve are made up of antifriction alloy respectively.Above-mentioned setting can greatly lift the rub proofness of gate valve inlet and outlet, and its service life greatly prolongs；Inlet and outlet inner-outer sleeve can also be changed, and reduce the maintenance cost of equipment.
Description
Technical field
The present invention relates to a kind of valve, more particularly to a kind of manufacturing technology field of manual residual cake valve.
Background technology
Scum gate valves is applied to nominal pressure PN1.6~6.4MPa, the firepower power station that 0~100 DEG C of operating temperature
On water conservancy system and the mortar exhaust system pipeline of hydraulic engineering, grey aqueous mixtures in pipeline, pulp water mixing are switched off or on
Thing.It is mainly used on the pipelines such as thermal power plant water ash disposal system, mill tailings conveying, sewage discharge and oil transportation.Mesh
Pre-gate valve be there are problems that in use, such as the easy accumulated slag of body base, close valve plate not in place, handwheel is chronically at
Throttle, accelerate velocity of medium, cause valve outlet end serious wear, handwheel premature failure.
The content of the invention
The defects of in order to overcome existing scum gate valves, the present invention provide a kind of soft seal abrasion-proof slag-discharging valve.
The present invention includes valve body, bonnet, valve plate, screw mandrel, and the valve body sets import, outlet, upper connector, the disengaging
For mouth on same level axis, upper connector sets flange, and the bonnet lower end sets flange, the flange and valve of the bonnet
The flange of connector is fixedly connected by bolt, nut on body；The upper end connecting bracket of the bonnet, the valve plate are arranged on valve
In vivo, the inner of the screw mandrel is fixedly connected through bonnet with the upper end of the valve plate, and the outer end of screw mandrel is supported on the support
On；Sealing mechanism is set between screw mandrel and bonnet；The valve body, the position of bonnet connection set promising valve plate to open reserved position
Put；The valve body import end connection import overcoat, import inner sleeve, the port of export connection outlet overcoat of the valve body, outlet inner sleeve,
The import inner sleeve is coaxially placed in the import overcoat, and the port of export of the import overcoat is put in the valve body and valve body
Import department's sealing fix, the entrance point of the import overcoat sets adpting flange；The import overcoat and the import inner sleeve
Between set sealing filling, it is described outlet inner sleeve be matched with same shape design in the outlet jacket, in the outlet,
Exit end face of the entrance point of overcoat respectively with the valve body is brought into close contact, and the valve outlet end face sets a circle spiral shell respectively
Hole, one circle flange is set in the import of the outlet jacket, the outlet jacket is consolidated by flange with valve body end face by bolt
Fixed connection；Sealing filling is set between the outlet jacket and the outlet inner sleeve, and import inner sleeve, outlet inner sleeve are respectively by wear-resisting
Alloy is made.
The present invention exports inner-outer sleeve, and import inner sleeve, outlet inner sleeve by setting import inner-outer sleeve respectively at valve body both ends
It is made up respectively of antifriction alloy, can greatly lifts the rub proofness of gate valve inlet and outlet, its service life greatly prolongs；Disengaging
Intraoral overcoat can also be changed, and reduce the maintenance cost of equipment.
Sealing filling of the present invention is macromolecule polyurethane filling, and macromolecule polyurethane filling has certain bullet
Property, and can guarantee that sealing effectiveness.The macromolecule polyurethane filling filled between inlet and outlet inner-outer sleeve can make not straight between inner-outer sleeve
Hard contact is connect, processing can be also effectively sealed by such a material prevents the medium in runner from overflowing.
The present invention sets a looser gap between the import overcoat and the outlet end of import inner sleeve, in gap
Sealing is set to fill, other sealing filling one, gap interior sealing are filled out between the sealing filling and the inside and outside set of import in gap
The end face of the inside and outside set of import is overflowed in the end face filled, and it is close that the end face that the sealing overflowed in gap is filled is arranged to arc elastic
Front cover, the one side of valve plate contact with arc elastic sealing surface.Sealing filling and macromolecule polyurethane filling herein, it is always
The position that import inner-outer sleeve contacts with valve plate is amplified, is entering at muzzle and valve plate contact position to be formed the raised arc bullet of a circle
Property sealing surface, the sealing packed layer of this arc sealing surface and inside and outside inner room for it is overall pour it is molten form, one integrated mass, toughness is strong, resistance to
It is high to grind performance, raised arc sealing surface is brought into close contact with gate valve, so that gate valve effectively seals when closing.
Valve body of the present invention includes valve shell, wedge-lock tight set, and the bottom of the valve shell is square, inner bottom surface
It is straight；The valve plate includes wedge-shaped valve plate, wearing plate, and the wearing plate is close to the vertical plane of the wedge-shaped valve plate and fixation, institute
State wedge shaped at the export direction of wedge-shaped valve plate, wearing plate is arranged on valve body import direction；The wedge lock set is closely matched somebody with somebody
At the valve body inner outlet direction, wedge lock set inlet end face is arranged to the wedge shape coordinated with the inclined-plane of wedge-shaped valve plate tiltedly
Face；Surrounding and bottom have high-abrasive material on the inside of the valve shell, and high-abrasive material is macromolecule polyurethane material or Gao Ge
Antifriction alloy plate.
Valve interior wall surrounding of the present invention and bottom have high-abrasive material so that valve interior wall is more resistant；Valve plate is divided into wedge shape
Valve plate and wearing plate, wedge-shaped valve plate are steelwork, effectively raise the overall impact resistance of valve plate.The medium flow field in runner
The wear-resisting plectane that dynamic region is then made using high-chromium wear-resistant alloy, improve the anti-wear performance and service life of valve plate.Valve plate exports
Wedge-lock tight set wedge shaped at direction, matching, valve plate is more closed tighter, be in close contact with entrance male seal face,
Play closed effect.
The outlet end inwall of wedge-lock tight set of the present invention is provided with the taper seamlessly transitted with outlet inner sleeve；Wedge shape
The coning sleeve that lock sleeve export department is formed, the passage with exporting inner sleeve seamlessly transit, and ensure that the flatness of medium runner so that
Medium is more easy to by avoiding accumulated slag.
The wedge-shaped valve plate of valve plate of the present invention is steelwork, and the wearing plate is wear-resisting high-chromium alloy product, the wedge
Shape lock sleeve is made of wear-resisting high-chromium alloy.Wedge-shaped valve plate is steelwork, effectively raises the overall impact resistance of valve plate
Energy.In runner media flow region then using high-chromium wear-resistant alloy make wear-resisting plectane, improve valve plate anti-wear performance and
Service life；Wedge-lock tight set is also that antifriction alloy is made, and further ensures its anti-wear performance.
The central axis that the present invention exports inside and outside set is the semicircular in shape supporting with valve flowing channel latus rectum upwards, outlet
The side of being connects round shape to the central axis of inside and outside set downwards, just connect round shape be export the bottom of inside and outside set for unfold to
The square straight cut of most wide format, export inside and outside set bottom latus rectum part and gradually tapered up from entrance point to port of export formation semicircle
Shape shape, the port of export for exporting inside and outside set form complete circle, and adpting flange is set in the outlet jacket port of export.
The outlet inner-outer sleeve of the present invention employs profiled shape, and its center axis is half supporting with runner latus rectum upwards
Round-shaped, the side of employing connects round special shape to central axis downwards.The bottom for going out muzzle and valve body is to unfold to most wide
The square straight cut of breadth, increase in runner medium outflow outlet flatness, make medium be more easy to by, avoid accumulated slag,
Ensure the normal work and sealing effectiveness of valve.With the flow direction of medium, square interface in light grade rise form and gradually to
Circle interface transition, until with gate valve national standard flange Interface Matching.This side connects round polymorphic structure and had both met national standard circle
The interface requirement of flange, make gate valve installation standardization, while it also avoid typical round passage, medium easily blocks, valve body is easily ground
The phenomenon of damage.
Import inner sleeve of the present invention, outlet inner sleeve are made of wear-resisting high-chromium alloy.High-chromium alloy has good
Abrasion resistant effect, it ensure that the anti-wear performance of this gate valve, and service life.
Sealing mechanism between screw mandrel and bonnet of the present invention includes the stuffing-box between screw mandrel and bonnet, filler pressure
Lid, the interior filling graphite packing of the stuffing-box, gland compress graphite packing, and gland is bolted and the valve
The top of lid.
The present invention is connected through a screw thread handwheel on the top of the screw mandrel, and handwheel is provided centrally with the interior spiral shell coordinated with screw mandrel
Line, handwheel are supported on the cantilever tip.Handwheel is used for the open and close of valve plate, detachably.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the present invention；
Fig. 2 is a kind of structural representation of present invention outlet inner sleeve.
Embodiment
As shown in Figure 1, 2, this soft seal abrasion-proof slag-discharging valve is made up of valve body 7, bonnet 10, valve plate 5, screw mandrel 11, handwheel 14,
Valve body 7 sets import 15, outlet 16, upper connector 17, and on same level axis, upper connector 17 is set inlet and outlet 15,16
Put flange, the lower end of bonnet 10 sets flange, and the flange of bonnet 10 is solid by bolt, nut with the flange of connector 17 on valve body 7
Fixed connection；The upper end connecting bracket 13 of bonnet 10, valve plate 5 are arranged in valve body 7, and the inner of screw mandrel 11 passes through bonnet 10 and valve plate
5 upper end is fixedly connected, and the outer end of screw mandrel 11 is supported on support 13；Sealing mechanism 18 is set between screw mandrel 11 and bonnet 10；
The position that valve body 7, bonnet 10 connect sets promising valve plate 5 to open reserved position.The top of screw mandrel 11 is connected through a screw thread hand
Wheel 14, handwheel 14 are provided centrally with the internal thread coordinated with screw mandrel 11, and handwheel 14 is supported on the top of support 13.The bottom of valve body 7
To be square, inner bottom surface is straight.
The entrance point of valve body 7 connection import overcoat 1, import inner sleeve 2, import inner sleeve 2 are coaxially placed in import overcoat 1, entered
Import department's sealing that the port of export of mouth overcoat 1 puts in valve body 7 with valve body is fixed, the entrance point setting connection method of import overcoat 1
Orchid 19；Macromolecule polyurethane is set to fill 3 between import overcoat 1 and import inner sleeve 2.
The port of export connection outlet overcoat 8 of valve body 7, outlet inner sleeve 9, outlet inner sleeve 9 are matched with same shape design
In outlet jacket 8, export exit end face of the entrance point of inside and outside set 8,9 respectively with valve body 7 and be brought into close contact, the exit end face of valve body 7
One circle screw is set respectively, one circle flange 20 is set in the import of outlet jacket 8, outlet jacket 8 passes through flange 20 and valve body end
Face is fixedly connected by bolt 21；Macromolecule polyurethane is set to fill 3 between outlet jacket 8 and outlet inner sleeve 9.
Import inner sleeve 2, outlet inner sleeve 9 are made of wear-resisting high-chromium alloy.Import overcoat 1, outlet jacket 8 are steel
Part.
One looser gap is set between import overcoat 1 and the outlet end of import inner sleeve 2, sealing is set in gap
Filling 3, the other one of sealing filling 3, gap interior sealing are filled between the sealing filling 3 and inside and outside 2,1 sets of import in gap
The end face of the inside and outside set 2,1 of import is overflowed in 3 end face, and the end face for the sealing filling 3 overflowed in gap is arranged to arc elastic sealing
Face 22, the one side of valve plate 5 contact with arc elastic sealing surface 22.Sealing filling 3 is macromolecule polyurethane filling.
The central axis for exporting inside and outside set 8,9 is the semicircular in shape supporting with the runner latus rectum of valve body 7 upwards, in outlet,
The side of being connects round shape to the central axis of overcoat 8,9 downwards, just connect round shape be outlet it is inside and outside set 8,9 bottom be easypro
The square straight cut of most wide format is opened up, 8,9 bottom latus rectum parts of inside and outside set is exported and is gradually tapered up from entrance point to port of export shape
Into semicircular in shape, the port of export for exporting inside and outside set 8,9 forms complete circle, and connection method is set in the port of export of outlet jacket 8
Orchid 23.
Valve body 7 includes valve shell 24, wedge-lock tight set 6, and valve plate 7 includes wedge-shaped valve plate 5-1, wearing plate 4, wearing plate 4
It is close to wedge-shaped valve plate 5-1 vertical plane and fixation, wedge shaped at wedge-shaped valve plate 5-1 export direction, wearing plate 4 is arranged on valve body
7 importers are upward；Wedge-lock tight set 6 is closely tied at the inner outlet direction of valve body 7, and the inlet end face of wedge-lock tight set 6 is arranged to
The tapered ramp coordinated with wedge-shaped valve plate 5-1 inclined-plane；The inner side surrounding of valve shell 24 and bottom have high-abrasive material 25, resistance to
It is macromolecule polyurethane material or high-chromium wear-resistant alloy sheets to grind material 25.
The outlet end inwall of wedge-lock tight set 6 is provided with the taper seamlessly transitted with outlet inner sleeve；Wedge-lock tight set 6 is adopted
It is made of wear-resisting high-chromium alloy.
The wedge-shaped valve plate 5-1 of valve plate is steelwork, and wearing plate 4 is wear-resisting high-chromium alloy product.
Sealing mechanism 18 between screw mandrel 11 and bonnet 10 includes the stuffing-box 26 between screw mandrel 11 and bonnet 10, filler pressure
Lid 12, the interior filling graphite packing 28 of stuffing-box 26, gland 12 compress graphite packing 28, and gland 12 is solid by bolt 27
Fixed and bonnet 10 top.
Claims (10)
1. soft seal abrasion-proof slag-discharging valve, including valve body, bonnet, valve plate, screw mandrel, the valve body sets import, outlet, upper connection
Mouthful, for the inlet and outlet on same level axis, upper connector sets flange, and the bonnet lower end sets flange, the valve
The flange of lid is fixedly connected with the flange of connector on valve body by bolt, nut；The upper end connecting bracket of the bonnet, it is described
Valve plate is arranged in valve body, and the inner of the screw mandrel is fixedly connected through bonnet with the upper end of the valve plate, the outer end branch of screw mandrel
Support is on the bracket；Sealing mechanism is set between screw mandrel and bonnet；The valve body, the position of bonnet connection set promising valve plate
Open reserved position；It is characterized in that the valve body import end connection import overcoat, import inner sleeve, the port of export of the valve body
Connection outlet overcoat, outlet inner sleeve, the import inner sleeve are coaxially placed in the import overcoat, the outlet of the import overcoat
Import department's sealing that end puts in the valve body with valve body is fixed, and the entrance point of the import overcoat sets adpting flange；It is described
Sealing filling is set between import overcoat and the import inner sleeve, and the outlet inner sleeve is matched with described with same shape design
In outlet jacket, exit end face of the entrance point for exporting inside and outside set respectively with the valve body is brought into close contact, and the valve body goes out
Mouth end face sets a circle screw respectively, sets a circle flange in the import of the outlet jacket, the outlet jacket passes through flange
It is bolted to connection with valve body end face；Sealing filling is set between the outlet jacket and the outlet inner sleeve, entered intraoral
Set, outlet inner sleeve are made up of antifriction alloy respectively.
2. soft seal abrasion-proof slag-discharging valve according to claim 1, it is characterised in that described sealing filling is macromolecule
Filling polyurethane, macromolecule polyurethane filling has certain elasticity, and can guarantee that sealing effectiveness.
3. soft seal abrasion-proof slag-discharging valve according to claim 1, it is characterised in that in the import overcoat and import inner sleeve
Outlet end between a wider gap is set, sealing filling is set in gap, sealing filling in gap and enter it is intraoral,
The end face of the inside and outside set of import, gap are overflowed in other sealing filling one between overcoat, the end face of gap interior sealing filling
The end face of the sealing filling of interior spilling is arranged to arc elastic sealing surface, and the one side of valve plate contacts with arc elastic sealing surface.
4. soft seal abrasion-proof slag-discharging valve according to claim 1, it is characterised in that the valve body includes valve shell, wedge shape
Lock sleeve, the bottom of the valve shell is square, and inner bottom surface is straight；The valve plate includes wedge-shaped valve plate, wearing plate, described resistance to
Nog plate is close to the vertical plane of the wedge-shaped valve plate and fixation, wedge shaped at the export direction of the wedge-shaped valve plate, and wearing plate is set
On valve body import direction；The wedge lock set is closely tied at the valve body inner outlet direction, wedge lock set import
End face is arranged to the tapered ramp coordinated with the inclined-plane of wedge-shaped valve plate；Surrounding and bottom are with wear-resisting on the inside of the valve shell
Material, high-abrasive material are macromolecule polyurethane material or high-chromium wear-resistant alloy sheets.
5. soft seal abrasion-proof slag-discharging valve according to claim 4, it is characterised in that the outlet end of the wedge-lock tight set
Inwall is provided with the taper seamlessly transitted with outlet inner sleeve.
6. soft seal abrasion-proof slag-discharging valve according to claim 4, it is characterised in that the wedge-shaped valve plate of the valve plate is steel
Part, the wearing plate are wear-resisting high-chromium alloy product；The wedge-lock tight set is made of wear-resisting high-chromium alloy.
7. soft seal abrasion-proof slag-discharging valve according to claim 1, it is characterised in that the import overcoat, outlet jacket are
Steel overcoat, the import inner sleeve, outlet inner sleeve are made of wear-resisting high-chromium alloy.
8. soft seal abrasion-proof slag-discharging valve according to claim 1, it is characterised in that the central axis for exporting inside and outside set is upward
It is the semicircular in shape supporting with valve flowing channel latus rectum, exporting the central axis of inside and outside set, the side of being connects round shape downwards, just connects
Round shape is that to export the bottom of inside and outside set be the square straight cut unfolded to most wide format, exports inside and outside set bottom latus rectum
Part gradually tapers up to the port of export from entrance point and forms semicircular in shape, and the port of export for exporting inside and outside set forms complete circle,
In the outlet jacket port of export, adpting flange is set.
9. soft seal abrasion-proof slag-discharging valve according to claim 1, it is characterised in that the sealing between the screw mandrel and bonnet
Mechanism includes stuffing-box, the gland between screw mandrel and bonnet, and graphite packing is filled in the stuffing-box, and gland compresses
Graphite packing, gland are bolted the top with the bonnet.
10. soft seal abrasion-proof slag-discharging valve according to claim 1, it is characterised in that pass through screw thread on the top of the screw mandrel
Handwheel is connected, handwheel is provided centrally with the internal thread coordinated with screw mandrel, and handwheel is supported on the cantilever tip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711079821.9A CN107631071A (en) | 2017-11-06 | 2017-11-06 | Soft seal abrasion-proof slag-discharging valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711079821.9A CN107631071A (en) | 2017-11-06 | 2017-11-06 | Soft seal abrasion-proof slag-discharging valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107631071A true CN107631071A (en) | 2018-01-26 |
Family
ID=61107232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711079821.9A Withdrawn CN107631071A (en) | 2017-11-06 | 2017-11-06 | Soft seal abrasion-proof slag-discharging valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107631071A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2625668Y (en) * | 2003-05-07 | 2004-07-14 | 江都市伟力环保机械设备有限公司 | Manual, hydraulic pressure antiwear slag-discharging valve |
| CN2931964Y (en) * | 2006-07-13 | 2007-08-08 | 苏根行 | Gate valve |
| CN201265689Y (en) * | 2008-10-06 | 2009-07-01 | 扬州伟力机械有限公司 | Abrasion-proof slag-discharging valve |
| CN102506186A (en) * | 2011-09-29 | 2012-06-20 | 博雷得工业（厦门）股份有限公司 | Slurry gate valve |
| CN202580084U (en) * | 2012-04-06 | 2012-12-05 | 张玉涛 | Hybrid internal closed type slurry anti-abrasion brake butterfly knife valve |
| CN203258090U (en) * | 2013-01-17 | 2013-10-30 | 浙江牧雅阀门制造有限公司 | Abrasion-resistant slurry valve |
| CN103438232A (en) * | 2013-07-24 | 2013-12-11 | 上海亚核阀业成套有限公司 | Self-cleaning gate valve applied to coal chemical industry |
| CN203384395U (en) * | 2013-07-24 | 2014-01-08 | 上海亚核阀业成套有限公司 | Self-cleaning-type slag removal integrated valve |
| CN207470882U (en) * | 2017-11-06 | 2018-06-08 | 扬州鸿伟机械有限公司 | Soft seal abrasion-proof slag-discharging valve |
-
2017
- 2017-11-06 CN CN201711079821.9A patent/CN107631071A/en not_active Withdrawn
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2625668Y (en) * | 2003-05-07 | 2004-07-14 | 江都市伟力环保机械设备有限公司 | Manual, hydraulic pressure antiwear slag-discharging valve |
| CN2931964Y (en) * | 2006-07-13 | 2007-08-08 | 苏根行 | Gate valve |
| CN201265689Y (en) * | 2008-10-06 | 2009-07-01 | 扬州伟力机械有限公司 | Abrasion-proof slag-discharging valve |
| CN102506186A (en) * | 2011-09-29 | 2012-06-20 | 博雷得工业（厦门）股份有限公司 | Slurry gate valve |
| CN202580084U (en) * | 2012-04-06 | 2012-12-05 | 张玉涛 | Hybrid internal closed type slurry anti-abrasion brake butterfly knife valve |
| CN203258090U (en) * | 2013-01-17 | 2013-10-30 | 浙江牧雅阀门制造有限公司 | Abrasion-resistant slurry valve |
| CN103438232A (en) * | 2013-07-24 | 2013-12-11 | 上海亚核阀业成套有限公司 | Self-cleaning gate valve applied to coal chemical industry |
| CN203384395U (en) * | 2013-07-24 | 2014-01-08 | 上海亚核阀业成套有限公司 | Self-cleaning-type slag removal integrated valve |
| CN207470882U (en) * | 2017-11-06 | 2018-06-08 | 扬州鸿伟机械有限公司 | Soft seal abrasion-proof slag-discharging valve |
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Application publication date: 20180126 |
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| WW01 | Invention patent application withdrawn after publication |