CN2755370Y - Abrasive-resistant ceramic wedge slag guiding sluice valve for preventing slag on bottom - Google Patents
Abrasive-resistant ceramic wedge slag guiding sluice valve for preventing slag on bottom Download PDFInfo
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- CN2755370Y CN2755370Y CN 200420029889 CN200420029889U CN2755370Y CN 2755370 Y CN2755370 Y CN 2755370Y CN 200420029889 CN200420029889 CN 200420029889 CN 200420029889 U CN200420029889 U CN 200420029889U CN 2755370 Y CN2755370 Y CN 2755370Y
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Abstract
The utility model relates to an abrasive-resistant ceramic wedge slag guiding sluice valve for preventing slag from accumulating at bottom, particularly a wedge type sluice valve. The utility model can prevent slag from accumulating at the bottom of a valve body and the bottom of one side of an outlet and has strong abrasion resistance, which makes up the defects of a traditional wedge type sluice valve. The utility model is characterized in that the bottom at the inner part of the valve body and a transition zone at one end of the outlet are changed into a bevel so as to change previous dead angle state and ensure that the flow path of the outlet has reasonable line shape without accumulating slag or blocking; an abrasive-resistant ceramic plate which has strong abrasion resistance is additionally arranged inside a medium flow path at the bottom of the valve body and used as a protective layer, so that the utility model effectively prevents mediums from directly flushing to abrade metal base, enhances the abrasion resistance of a valve and extends the service life of the valve. Compared with the existing metal sluice valve, the service life of the utility model can be enhanced by more than 10 times. The utility model is applied to mediums of mortar class of which the solid particle diameter is below 50 mm.
Description
Technical field:
The present invention relates to a kind of Wedge gate valve.Particularly a kind of bottom accumulated slag and anti abrasive new ceramics wedge-type of preventing led the slag gate valve.
Background technique:
Valve is a kind of machinery of controlling fluid motion.Gate valve is a kind of in the valve, belongs to the cut-off valve class.It comprises valve body, valve seat, flashboard and transmission device; On valve body, be provided with import and outlet; Flashboard is a wedge shape, is provided with sealing surface in its side that links to each other with inlet, and flashboard links to each other with driving mechanism, and Vertical direction that can pipe centerline is done the keying that straight line motion is finished valve, thus the conveying of control flows body medium; Valve seat is a seal ring, is located at the ingress of valve body.
When flashboard was in the state of complete opening, the import of valve connected fully with outlet, and flowing medium promptly enters valve from import, flows out valve from outlet, at this moment the fluid flow maximum.And when regulating transmission device and do straight line motion the flashboard closed position is moved down, the circulation area of import and outlet reduces, and flowing medium is subjected to certain restriction by the flow of valve, can be with the size of this control flow rate.And finish an one-stroke process when regulating transmission device, when promptly flashboard was in complete closing state, the sealing between valve seat and the flashboard can't be passed through flowing medium, this moment valve closing, flowing medium can not pass through from valve.
The Wedge gate valve that uses mostly is the metal manufacturing at present, and such valve is applicable to carries clean gas or liquid.Bottom in the valve body also is traditional form of grooves, when medium is solid particle, the phenomenon that solid particle precipitates or be trapped in the valve body bottom will occur, and it is not in place to cause flashboard to close, and leaks in valve produces to cause system normally to move.If valve is in the state not in place of closing for a long time, can cause valve invalidation, increase maintenance expenses.
In addition, because the deadweight of solid particle medium and flow at high speed have serious washing away to valve body bottom and the bottom that exports an end, this phenomenon is very serious to the wearing and tearing of metallic matrix.Cause valve to grind away in early days, cause its short in working life, maintenance, change frequent, when valve working during, because the rapid intensification of wearing and tearing groove mark of bottom reduces effective thickness, when serious even can bring security incident at high pressure conditions.
Summary of the invention:
The present invention is intended to invent a kind of bottom accumulated slag and anti abrasive new ceramics wedge-type of preventing and leads the slag gate valve, it can prevent the erosive wear of medium to valve body bottom metal matrix effectively, and performances such as tight envelope have been realized, improve the wear resistance and the sealing of valve, prolonged the working life of valve.
The present invention includes valve body, valve seat, flashboard and transmission device; On valve body, be provided with import, outlet; Import one side in the valve body internal valve cavity is provided with the ring-shaped pottery valve seat, and flashboard is a wedge shape, and the plane of wedge shape is in valve body import one side, and the inclined-plane of wedge shape is in valve outlet one side, and the sealing part with valve seat on one side of the plane of wedge shape flashboard is provided with ceramic-seal ring; Bottom in the valve body is made as the inclined-plane with the transition zone of outlet one end; Valve body bottom and this transition inclined-plane lining structural ceramics, as Fig. 1, shown in Figure 2.
Wherein structural ceramics can be a zirconia-based ceramics, alumina-based ceramic, types of silicon carbide-based ceramics, mullite-based ceramic, silicon-nitride-based ceramic.
Operation principles of the present invention is:
When ceramic-seal ring on the flashboard and valve seat applying sealing, flowing medium can't enter outlet by passage, and the present invention is closed condition.
When regulating driving mechanism, make when moving on the flashboard working position, inlet passage and outlet passage are connected gradually, the area that passes through of flowing medium increases gradually, and flow also strengthens gradually, finishes an one-stroke process until regulating driving mechanism, be after flashboard is in the state of complete opening, import and outlet are communicated with fully, and flowing medium passes through, complete opening of the present invention.
Because the present invention becomes bottom in the valve body and the transition zone that exports an end into the inclined-plane, changed dead angle state in the past, make outlet flow linear rationally, can make the more slag slurry pipeline of lime-ash avoid the phenomenon of locating bigger impact of formation and eddy current and being difficult for discharge for a long time in the bottom accumulated slag at bottom and the dead angle that exports an end like this, avoided more simultaneously closing not in placely, leaked the adverse consequences that causes system normally to move in valve produces owing to the flashboard that above reason causes.
Because the present invention is in body cavity bottom and export in the media flow passage of an end transition zone and install the abrasion proof ceramic wafer protection surface layer with extremely strong wear resistance additional; thereby stoped the direct erosive wear of mortar medium effectively, improved the wear resistance of valve metallic matrix.As Fig. 1, shown in Figure 2.
Because flashboard is a wedge shape, the angle of wedge can make acquisition power between sealing surface under the effect of transmission device in closing state, and this power constitutes the automatic compensation of sealing force between flashboard and the valve seat, and making has enough sealing forces to seal between flashboard and the valve seat.
Because the present invention is provided with ceramic valve seat, is provided with ceramic-seal ring on flashboard, at body cavity bottom and transition zone lining pottery, pottery has hardness height, wear-resistant, corrosion-resistant, the characteristic of stable chemical performance can be resisted washing away and corroding of flowing medium, increases the service life.
In sum, the present invention is that a kind of bottom accumulated slag and anti abrasive new ceramics wedge-type of preventing led the slag gate valve.It can realize the light wearing and tearing, corrosion-resistant of wedge action valve, seals performances such as tight, to increase the service life.
Description of drawings:
Fig. 1 is an overall schematic of the present invention.
Fig. 2 is the valve body plan view.
Fig. 3 is the left view of valve body Front view 2.
Among the figure: 1-flashboard, 2-valve body, 3-shop fixtures pottery, 4-valve pocket, 5-shop fixtures pottery, 6-ceramic seal circle, 7-outlet, 8-transmission device, 9-valve seat, 10-valve seat ceramic seal circle, 11-import.
Embodiment:
With inside nominal diameter DN:150mm, the present invention of nominal pressure PN:1.0Mpa is embodiment:
The present invention is used for the slag slurry pipeline of serious wear, and lime-ash is more and have a tight bad operating mode of bigger grey solid impurity particle.The import 11 and the outlet 7 of valve body 2 are installed in respectively in the conveyance conduit of fluid.Valve seat ceramic seal circle 10 adopts zirconia-based ceramics, is provided with zirconia-based ceramics seal ring 6 on flashboard 1, and flashboard 1 adopts wedge-shaped structure.
Under the present invention in off position, lime-ash enters from import 11, and the ceramic seal circle 10 on the valve seat is fitted with the ceramic-seal ring of flashboard 6, makes that import 11 is the state of sealing, and the pressure difference between import 11 and the valve pocket 4 is 1.0Mpa.When regulating transmission device 8 and drive flashboard 1 and move on the working position, import 11 is communicated with gradually with valve pocket 4, communication port occurs, fluid promptly by this communication port from exporting 7 outflows.When transmission device 8 affected flashboard 1 to move on continuing the working position, import 11 connected fully with valve pocket 4, and fluid is flowed into from import 11 unobstructedly, from exporting 7 outflows.The transmission process of transmission device 8 has been realized the process of sealing of the present invention-adjusting flow-standard-sized sheet.
Because the present invention has adopted ceramic seal; and with body cavity bottom and export the position that the transition zone of an end seriously washes away by lime-ash and spread the structural ceramics protective layer; make the present invention have light wearing and tearing, corrosion-resistant, sealing performance such as tight, increasing the service life to reach 10 to 15 times of general conventional wedge gate valve.
Claims (2)
1. one kind prevents that bottom accumulated slag and anti abrasive new ceramics wedge-type from leading the slag gate valve, comprises valve body, valve seat, flashboard and driving mechanism; On valve body, be provided with import, outlet; It is characterized in that the bottom in the valve body becomes the inclined-plane with the transition zone that exports an end; Valve body bottom and this transition inclined-plane are subjected to medium seriously to wash away position lining structural ceramics protection surface layer; Sealing part at flashboard and valve seat is provided with ceramic-seal ring.
2. leading the slag gate valve according to described bottom accumulated slag and the anti abrasive new ceramics wedge-type of preventing of claim 1, it is characterized in that structural ceramics is an alumina-based ceramic, also can be zirconia-based ceramics, types of silicon carbide-based ceramics, mullite-based ceramic, silicon-nitride-based ceramic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420029889 CN2755370Y (en) | 2004-10-10 | 2004-10-10 | Abrasive-resistant ceramic wedge slag guiding sluice valve for preventing slag on bottom |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420029889 CN2755370Y (en) | 2004-10-10 | 2004-10-10 | Abrasive-resistant ceramic wedge slag guiding sluice valve for preventing slag on bottom |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2755370Y true CN2755370Y (en) | 2006-02-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420029889 Expired - Fee Related CN2755370Y (en) | 2004-10-10 | 2004-10-10 | Abrasive-resistant ceramic wedge slag guiding sluice valve for preventing slag on bottom |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2755370Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286873A (en) * | 2016-11-07 | 2017-01-04 | 施瑞德阀门(厦门)有限公司 | A kind of inclined-plane guide-slot type ceramic gate valve |
| CN107620805A (en) * | 2017-11-06 | 2018-01-23 | 扬州鸿伟机械有限公司 | A kind of wearable slag discharging valve |
| CN107701778A (en) * | 2017-11-06 | 2018-02-16 | 扬州鸿伟机械有限公司 | Anti-blocking pressure antiwear slag-discharging valve |
| CN111692353A (en) * | 2019-03-14 | 2020-09-22 | 汤宝田 | Flashboard type intelligent valve |
| CN114776825A (en) * | 2022-06-24 | 2022-07-22 | 四川瑞卡威新材料科技有限公司 | Sand-resistant gate valve |
-
2004
- 2004-10-10 CN CN 200420029889 patent/CN2755370Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286873A (en) * | 2016-11-07 | 2017-01-04 | 施瑞德阀门(厦门)有限公司 | A kind of inclined-plane guide-slot type ceramic gate valve |
| CN107620805A (en) * | 2017-11-06 | 2018-01-23 | 扬州鸿伟机械有限公司 | A kind of wearable slag discharging valve |
| CN107701778A (en) * | 2017-11-06 | 2018-02-16 | 扬州鸿伟机械有限公司 | Anti-blocking pressure antiwear slag-discharging valve |
| CN111692353A (en) * | 2019-03-14 | 2020-09-22 | 汤宝田 | Flashboard type intelligent valve |
| CN114776825A (en) * | 2022-06-24 | 2022-07-22 | 四川瑞卡威新材料科技有限公司 | Sand-resistant gate valve |
| CN114776825B (en) * | 2022-06-24 | 2022-08-19 | 四川瑞卡威新材料科技有限公司 | Sand-resistant gate valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Tianjin Shengkai Industrial Techn Development Co., Ltd. Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice |
Addressee: Tianjin Shengkai Industrial Techn Development Co., Ltd. Document name: Notification of Termination of Patent Right |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060201 Termination date: 20121010 |