CN202545849U - Wear-resistant flat gate valve - Google Patents
Wear-resistant flat gate valve Download PDFInfo
- Publication number
- CN202545849U CN202545849U CN2012200991852U CN201220099185U CN202545849U CN 202545849 U CN202545849 U CN 202545849U CN 2012200991852 U CN2012200991852 U CN 2012200991852U CN 201220099185 U CN201220099185 U CN 201220099185U CN 202545849 U CN202545849 U CN 202545849U
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- CN
- China
- Prior art keywords
- valve
- flashboard
- wear
- stamping steel
- steel ribbon
- 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 - Lifetime
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Abstract
A wear-resistant flat gate valve comprises a valve seat, a gate, a valve rod and a driving mechanism, the gate, which is flat, is arranged in the valve seat, and is connected with the driving mechanism through the valve rod, the gate is provided with a left big surface, a right big surface, a front side, a rear side and a bottom side, the front side, the rear side and the bottom side are located between the left and the right big surfaces, the valve seat comprises a left valve body and a right valve body, which respectively neighbor the left and the right big surfaces, a continuous groove is arranged in the front side, the rear side and the bottom side of the gate, a seal rope is arranged in the groove, the top of the valve seat is provided with a middle stuffing box, a seal strip is arranged in the middle stuffing box, and is arranged along the width direction of the gate, and both ends of the seal strip neighbor both upper ends of the seal rope. The medium in a pipeline is not in contact with the sealing surface of the gate, the seal rope has the function of lubrication, consequently, the friction between the sealing surfaces of the gate and the valve body can be reduced, the opening and closing moment of the valve can be reduced, the service life can be prolonged, and when the seal rope becomes useless, a new seal rope can be used.
Description
Technical field:
The utility model relates to mechanical field, relates in particular to valve, the particularly opening/shutting valve in the pipe-line system of conveying granular or powdery medium, particularly a kind of wear-resisting plate valve.
Background technique:
Plate valve is widely used in the pipe-line system of conveying granular or powdery medium.In the existing technology, plate valve adopts the cast inblock structure, utilizes the sealing surface on two big faces of flashboard and the valve body to pass through the pairing abrasive method, reaches sealing effect.This plate valve processing maintenance is inconvenient, because valve body stuffing box position can't process, causes sealing effect poor, the phenomenon that leaks outside often occurs.Under the operating mode of harshness, the wear-resistant and scour resistance of plate valve is relatively poor, and medium can be ejected on the big face of flashboard on the sealing surface during valve opening, makes sealing surface wear or is washed away, and working life is short, and poor sealing performance, valve body are inconvenient to keep in repair.Wash out and do not compensate surplus like the flashboard sealing surface, can cause also that valve can't be closed and the situation that causes medium to leak outside in a large number.For example, steel mill's blast furnace is transported away the valve of coal dust medium, and 40 to 200 purpose coal dust media of its conveying are very serious to washing away of valve.Wash away position (valve body, valve seat, flashboard) sprayed wc alloy at medium again in the existing technology, but involve great expense, valve opening and closing moment is big, fragile difficult the reparation, and processing difficulties and machining accuracy are difficult to guarantee.
Summary of the invention:
The purpose of the utility model is to provide a kind of wear-resisting plate valve, and described this wear-resisting plate valve will solve the sealing surface of existing technology middle plateform gate valve easily by medium wearing and tearing, high, the easy damage of manufacture cost, reparation difficult technologies problem.
This wear-resisting plate valve of the utility model comprises valve seat, flashboard, valve rod and driving mechanism, and described flashboard is arranged in the described valve seat; Flashboard is connected with described driving mechanism through described valve rod, and driving mechanism is connected with described valve seat through support, and flashboard is planar; About including on the flashboard two big faces and about front side edge, back side edge and bottom side between two big faces; Valve seat is made up of left valve barrel and right valve barrel, described left valve barrel and right valve barrel respectively with flashboard about two big faces adjacent, wherein; Be provided with a continuous recess in the front side edge of described flashboard, back side edge and the bottom side; Be provided with sealing cord in the described groove, the top of valve seat is provided with the middle part stuffing box, is provided with Stamping Steel Ribbon in the stuffing box of described middle part; Described Stamping Steel Ribbon is along the width direction setting of flashboard, and two upper ends of the two ends of Stamping Steel Ribbon and described sealing cord are adjacent.
Further, the seal length of described sealing cord on the flashboard length direction is greater than the unlatching distance of flashboard, and like this, medium all washes away the sealing surface less than flashboard during valve switch.
Further, the front-end and back-end of described left valve barrel and right valve barrel are connected through bolt.
Further, be provided with twice parallel Stamping Steel Ribbon up and down in the stuffing box of described middle part, wherein former and later two upper ends of the Stamping Steel Ribbon of below and sealing cord are adjacent.
Further, described Stamping Steel Ribbon is fixed in the stuffing box of described middle part by a pressing plate, is provided with the elastic compensating bar between Stamping Steel Ribbon and the stuffing box inboard, middle part.
Further, described Stamping Steel Ribbon is made up of the rope bar that teflon and graphite are compiled into.
The utility model and prior art are compared, and its effect is actively with tangible.The utility model is provided with a sealing cord continuously in three sides of flashboard, sealing cord is trapped in the groove of flashboard side, contacts with compressing of valve base inner wall through sealing cord and realizes sealing, and ducted medium does not contact the flashboard sealing surface.During valve closing, flashboard side and sealing cord, valve body form sealing configuration, medium wash away less than; Because sealing cord has lubricated effect, thereby has reduced the frictional force of flashboard and valve body sealing surface, has reduced valve opening and closing moment; Increased working life, reduced cost, when valve is used sealing cord and scrapped; Can continue to use as long as change sealing cord, need not to match abrasive machining, parts such as valve body can repeatedly reuse use; Simultaneously valve body adopts and divides a body structure, process easy to maintenancely, and it is just passable only need to take split replacing sealing cord during maintenance apart.
Description of drawings:
Fig. 1 is the plan view of the wear-resisting plate valve of the utility model.
Fig. 2 is the side view of the wear-resisting plate valve of the utility model.
Embodiment:
Embodiment 1:
As depicted in figs. 1 and 2, the wear-resisting plate valve of the utility model comprises valve seat, flashboard 5, valve rod 7 and driving mechanism 10; Flashboard 5 is located in the valve seat, and flashboard 5 links to each other with driving mechanism 10 through valve rod 7, wherein; Described flashboard 5 is planar; Described valve seat is made up of left valve barrel 1 and right valve barrel 3, left valve barrel 1 and right valve barrel 3 respectively with flashboard 5 about two big faces adjacent, be provided with continuous recess in front side edge, back side edge and the bottom side between about 5 two big faces of flashboard; Be provided with a sealing cord 4 in the described groove continuously; Sealing cord 4 is in the seal length of the flashboard 5 length directions unlatching distance greater than valve, and left valve barrel 1 is provided with the middle part stuffing box with right valve barrel 3 tops, is provided with Stamping Steel Ribbon 6 in the stuffing box of middle part; Stamping Steel Ribbon 6 is along the width direction setting of described flashboard 5, and Stamping Steel Ribbon 6 is adjacent with two upper ends of described sealing cord 4.
The flashboard position behind the valve opening is represented in flashboard position when the solid line among Fig. 1 is represented valve closing, dotted line.
Further, sealing surface does not receive washing away of medium in the side of flashboard 5.
Further, the front-end and back-end of described left valve barrel 1 and right valve barrel 3 are connected with bolt 9 through bolt 2 respectively.
Further, in the stuffing box of described middle part, be provided with twice parallel Stamping Steel Ribbon 6 up and down, following Stamping Steel Ribbon 6 is adjacent with former and later two upper ends of sealing cord 4.
Further, described Stamping Steel Ribbon 6 is fixed in the stuffing box of middle part by pressing plate 8, is provided with elastic compensating bar (not shown) between the inwall of Stamping Steel Ribbon 6 and middle part stuffing box.The elastic compensating bar is made up of fluorine rubber, and the promotion Stamping Steel Ribbon 6 that can in time expand contacts with flashboard and plays compensating action.
Further, Stamping Steel Ribbon 6 is made up of the rope bar that teflon and graphite are compiled into.
Claims (6)
1. a wear-resisting plate valve comprises valve seat, flashboard, valve rod and driving mechanism, and described flashboard is arranged in the described valve seat; Flashboard is connected with described driving mechanism through described valve rod; Driving mechanism is connected with described valve seat through support, and flashboard is planar, about including on the flashboard two big faces and about front side edge, back side edge and bottom side between two big faces; Valve seat is made up of left valve barrel and right valve barrel; Described left valve barrel and right valve barrel respectively with flashboard about two big faces adjacent, it is characterized in that: be provided with a continuous recess in the front side edge of described flashboard, back side edge and the bottom side, be provided with sealing cord in the described groove; The top of valve seat is provided with the middle part stuffing box; Be provided with Stamping Steel Ribbon in the stuffing box of described middle part, described Stamping Steel Ribbon is along the width direction setting of flashboard, and two upper ends of the two ends of Stamping Steel Ribbon and described sealing cord are adjacent.
2. wear-resisting plate valve as claimed in claim 1 is characterized in that: the seal length of described sealing cord on the flashboard length direction is greater than the unlatching distance of flashboard.
3. wear-resisting plate valve as claimed in claim 1 is characterized in that: the front-end and back-end of described left valve barrel and right valve barrel are connected through bolt.
4. wear-resisting plate valve as claimed in claim 1 is characterized in that: be provided with twice parallel Stamping Steel Ribbon up and down in the stuffing box of described middle part, wherein former and later two upper ends of the Stamping Steel Ribbon of below and sealing cord are adjacent.
5. wear-resisting plate valve as claimed in claim 1 is characterized in that: described Stamping Steel Ribbon is fixed in the stuffing box of described middle part by a pressing plate, is provided with the elastic compensating bar between Stamping Steel Ribbon and the stuffing box inboard, middle part.
6. wear-resisting plate valve as claimed in claim 1 is characterized in that: described Stamping Steel Ribbon is made up of the rope bar that teflon and graphite are compiled into.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200991852U CN202545849U (en) | 2012-03-16 | 2012-03-16 | Wear-resistant flat gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200991852U CN202545849U (en) | 2012-03-16 | 2012-03-16 | Wear-resistant flat gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202545849U true CN202545849U (en) | 2012-11-21 |
Family
ID=47166487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200991852U Expired - Lifetime CN202545849U (en) | 2012-03-16 | 2012-03-16 | Wear-resistant flat gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202545849U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108547988A (en) * | 2018-04-03 | 2018-09-18 | 云峰科技（北京）有限公司 | A kind of knife gate valve of flashboard week side seal |
| CN108662180A (en) * | 2018-05-29 | 2018-10-16 | 湖北工业大学 | A kind of environmental protection baffle board door of flue |
-
2012
- 2012-03-16 CN CN2012200991852U patent/CN202545849U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108547988A (en) * | 2018-04-03 | 2018-09-18 | 云峰科技（北京）有限公司 | A kind of knife gate valve of flashboard week side seal |
| CN108662180A (en) * | 2018-05-29 | 2018-10-16 | 湖北工业大学 | A kind of environmental protection baffle board door of flue |
| CN108662180B (en) * | 2018-05-29 | 2019-03-22 | 湖北工业大学 | A kind of environmental protection baffle board door of flue |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121121 |