CN101865299B - Flat wedge floating type ceramic gate valve - Google Patents
Flat wedge floating type ceramic gate valve Download PDFInfo
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- CN101865299B CN101865299B CN2010102150024A CN201010215002A CN101865299B CN 101865299 B CN101865299 B CN 101865299B CN 2010102150024 A CN2010102150024 A CN 2010102150024A CN 201010215002 A CN201010215002 A CN 201010215002A CN 101865299 B CN101865299 B CN 101865299B
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Abstract
The invention discloses a flat wedge floating type ceramic gate valve which comprises a valve body (10), a valve rod (1) and a valve cap (3), wherein a valve plate mechanism and a valve seat mechanism in mutually sealed compressing fit are arranged in the valve body (10); the valve rod (1) penetrates through the valve cap (3) and extends into the valve body (10); and the valve rod (1) is linked with the valve plate mechanism through a round head screw (9). The invention has reasonable design, simple structure, low manufacturing cost, good tightness, strong practicality and easy popularization and application, and is suitable for transmission of different fluid media; the sealing part adopts members made of ceramic material and has good wear resistance, corrosion resistance and high-temperature resistance; and the accuracy of fit depends on the machining accuracy of the respective fitting surface.
Description
Technical field
The present invention relates to a kind of gate valve, relate in particular to a kind of flat wedge floating type ceramic gate valve.
Background technique
Traditional gate valve can be divided into wedge-type flashboard type gate valve and parallel flashboard type gate valve by the sealing surface configuration; When gate valve is closed, through cooperating between flashboard and the valve seat realizing sealing.
The gate valve of (ZL 200520036993.4) and " short body flat-wedging type gate valve " (ZL 00253894.6) proposition that Chinese patent " does not have friction flat-wedging type gate valve "; Its flashboard two sealing surfaces are respectively the plane and the inclined-plane contacts with valve seat respectively; And then the sealing of realization gate valve, overcome the wedge-type flashboard type and be prone to stuck defective and parallel flashboard type sealing surface defective easy to wear; Another Chinese patent " ceramic gate valve " (ZL 200410100929.8) adopts ceramic seal face assembly to replace the pile-up welding hard alloy sealing surface, and other structures and the parts of common gate valve are constant, make gate valve have advantages such as wear-resisting, corrosion-resistant and high temperature resistant.
Adopt common flat-wedging type gate valve, then be difficult to solve problems such as wearing and tearing and corrosion; Adopt ceramic gate valve, then because of ceramic processing difficulties, make valve plate be difficult to and the valve seat interference fit, cause the Gate-valve sealing performance bad.
Summary of the invention
The present invention is in order to solve deficiency of the prior art, and a kind of flat wedge floating type ceramic gate valve of wear-resistant, corrosion-resistant, good airproof performance is provided.
For solving the problems of the technologies described above; The present invention adopts following technological scheme: flat wedge floating type ceramic gate valve; Comprise valve body 10, valve rod 1 and valve gap 3; Be provided with the valve plate mechanism and the valve seat mechanism of mutual sealing top press fit in the valve body 10, valve rod 1 penetrates valve gap 3 and extend in the valve body 10, and said valve rod 1 is through ball screw 9 and the interlock of valve plate mechanism.
Said valve plate mechanism comprises the flat voussoir 19 that is spirally connected with ball screw 9; Flat voussoir 19 plane side are inlaid with ceramic ring 18; Flat voussoir 19 inclined-plane sides are bolted with block 17; Be provided with cooperate with flat voussoir 19 spheres unsteady between block 17 and the flat voussoir 19 and insert 16,16 plane side of inserting of floating are inlaid with ceramic ring 15, and planes, ceramic ring 18 outside place are wedge shape wide at the top and narrow at the bottom with the ceramic ring 15 outside planes that belong to.
Said valve seat mechanism comprises the inclined-plane wedge-type ceramic valve seat 14 that cooperates with ceramic ring 15 slip roof pressures, the plane ceramic valve seat 12 that cooperates with ceramic ring 18 slip roof pressures, and wedge-type valve seat 14 left sides, inclined-plane are provided with and limit its briquetting that moves 13, ceramic valve seat 12 right sides in plane are provided with and limit its briquetting that moves 11.
Said valve rod 1 sidepiece is provided with sliding axle 5, and valve gap 3 inboards are provided with guide rail 4, and sliding axle 5 is located in the guide rail 4 and is slidingly connected with guide rail 4.
Be provided with sealing gasket 6 between said valve gap 3 and the valve body 10, valve gap 3 is fastenedly connected through bolt 2 with valve body 10.
Said valve rod 1 lower end is provided with groove 20, and the bulb 21 of ball screw 9 is arranged in the groove 20, and valve rod 1 underpart is provided with bulb 21 is limited in the pressing plate 7 in the groove 20, and pressing plate 7 is fixedly connected with valve rod 1 through screw 8.
Adopt technique scheme, can reach following beneficial effect:
1, adopt ball screw to be connected between valve rod and the valve plate mechanism; This ball screw can be free movable in valve rod; Reduced the accuracy of manufacturing requirement of valve plate mechanism, when the tapped hole of valve plate mechanism did not overlap with the valve rod shaft axis, the surface of contact of ball screw and valve rod can be adjusted automatically; Be convenient to the assembling of valve rod and valve plate mechanism, and guaranteed sealing surface contact precision and sealability.
What 2, valve plate mechanism and valve seat mechanism were central adopts stupalith such as counterparts (Sealing) such as ceramic ring, inclined-plane wedge-type ceramic valve seat, plane ceramic valve seats, has improved wear resistance, corrosion resistance and the high temperature resistance of gate valve.
3, float insert and flat voussoir between spherical and flat voussoir chamfered section bit line contact matching through floating and inserting; Make unsteady inserting to adjust the position automatically; Making floats, and insert ceramic ring that plane side inlays matches with inclined-plane wedge-type ceramic valve seat in the valve seat mechanism sealing surface is evenly exerted pressure; Make the ceramic ring inlayed in quality of fit and the flat voussoir between the ceramic ring that inclined-plane wedge-type ceramic valve seat and float inlays in inserting and the quality of fit of plane ceramic valve seat only depend on the machining accuracy of fitting surface separately, reduced the manufacture cost of gate valve.
4, the ceramic ring inlayed of the unsteady plane side of inserting in the valve plate mechanism and the cooperation between the inclined-plane wedge-type ceramic valve seat in the valve seat mechanism mainly rise and evenly exert pressure and produce interference; The sealing of gate valve leans on the plane ceramic ring inlayed in the flat voussoir in the valve plate mechanism and the plane interference fit between the plane ceramic valve seat in the valve seat mechanism to realize, has improved the sealing reliability of gate valve.
The present invention is reasonable in design, simple in structure; The member that adopt at the sealing position is a stupalith, and the wear resistant corrosion resistant heat-resisting quantity is good; Quality of fit only depends on the machining accuracy of fitting surface separately, low cost of manufacture, good airproof performance, and be applicable to the transmission of different fluid medium, and practical, be easy to apply.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Embodiment
As shown in Figure 1; Flat wedge floating type ceramic gate valve of the present invention comprises valve body 10, valve rod 1 and valve gap 3, is provided with the valve plate mechanism and the valve seat mechanism of mutual sealing top press fit in the valve body 10; Valve rod 1 penetrates valve gap 3 and extend in the valve body 10, and valve rod 1 is through ball screw 9 and the interlock of valve plate mechanism.Valve rod 1 sidepiece is provided with sliding axle 5, and valve gap 3 inboards are provided with guide rail 4, and sliding axle 5 is located in the guide rail 4 and is slidingly connected with guide rail 4, is provided with sealing gasket 6 between valve gap 3 and the valve body 10, and valve gap 3 is fastenedly connected through bolt 2 with valve body 10.Valve rod 1 lower end is provided with groove 20, and the bulb 21 of ball screw 9 is arranged in the groove 20, and valve rod 1 underpart is provided with bulb 21 is limited in the pressing plate 7 in the groove 20, and pressing plate 7 is fixedly connected with valve rod 1 through screw 8.
Valve plate mechanism comprises the flat voussoir 19 that is spirally connected with ball screw 9; Flat voussoir 19 plane side are inlaid with ceramic ring 18; Flat voussoir 19 inclined-plane sides are bolted with block 17; Be provided with cooperate with flat voussoir 19 spheres unsteady between block 17 and the flat voussoir 19 and insert 16,16 plane side of inserting of floating are inlaid with ceramic ring 15, and planes, ceramic ring 18 outside place are wedge shape wide at the top and narrow at the bottom with the ceramic ring 15 outside planes that belong to.
Valve seat mechanism comprises the inclined-plane wedge-type ceramic valve seat 14 that cooperates with ceramic ring 15 slip roof pressures, the plane ceramic valve seat 12 that cooperates with ceramic ring 18 slip roof pressures, and wedge-type valve seat 14 left sides, inclined-plane are provided with and limit its briquetting that moves 13, ceramic valve seat 12 right sides in plane are provided with and limit its briquetting that moves 11.
The counterpart of valve plate mechanism and valve seat mechanism, promptly Sealings such as ceramic ring 15, ceramic ring 18, inclined-plane wedge-type ceramic valve seat 14, plane ceramic valve seat 12 all adopt stupalith, have improved wear resistance, corrosion resistance and the high temperature resistance of gate valve.
Unsteady in the valve plate mechanism insert 16 and flat voussoir 19 between insert through floating 16 spherical 22 and flat voussoir 19 chamfer sites 23 line contact matching; When the inclined-plane wedge-type ceramic valve seat 14 in the valve seat mechanism is inserted ceramic ring 15 in 16 when contacting with floating; Float insert 16 can adjust self automatically the position make inclined-plane wedge-type ceramic valve seat 14 even contact in ceramic ring 15 and the valve seat mechanism and evenly exert pressure; Make the quality of fit of quality of fit and ceramic ring 18 and plane ceramic valve seat 12 between inclined-plane wedge-type ceramic valve seat 14 and the ceramic ring 15 only depend on the machining accuracy of fitting surface separately; Reduce the manufacture cost of gate valve, improved the reliability of Gate-valve sealing.
When work is used; Pulling valve rod 1, sliding axle 5 moves up along guide rail 4, drives on the flat voussoir 19 through ball screw 9 and carries; With the block 17 of flat voussoir 19 one, floating to insert 16 together moves up; Be embedded in the ceramic ring 18 and the ceramic ring that is embedded in unsteady 16 plane side of inserting 15 disengaging plane ceramic valve seats 12 and inclined-plane wedge-type ceramic valve seats 14 of flat voussoir 19 plane side, gate valve is opened, and flowing medium can circulate.Promote valve rod 1; Sliding axle 5 moves down along guide rail 4; Drive flat voussoir 19 through ball screw 9 and move down, with the block 17 of flat voussoir 19 one, floating to insert 16 together moves down, the ceramic ring 18 that is embedded in flat voussoir 19 plane side be embedded in the ceramic ring 15 sealing plane ceramic valve seats 12 and inclined-plane wedge-type ceramic valve seats 14 of 16 plane side of inserting that float; Gate valve is closed, and flowing medium is cut off.When the tapped hole of flat voussoir 19 did not overlap with valve rod 1 shaft axis, the bulb 21 of ball screw 9 can be adjusted with the surface of contact of valve rod 1 automatically.
Claims (5)
1. flat wedge floating type ceramic gate valve; Comprise valve body (10), valve rod (1) and valve gap (3); Be provided with the valve plate mechanism and the valve seat mechanism of mutual sealing top press fit in the valve body (10); Valve rod (1) penetrates valve gap (3) and extend in the valve body (10), it is characterized in that: said valve rod (1) is through ball screw (9) and the interlock of valve plate mechanism; Said valve rod (1) lower end is provided with groove (20), and the bulb (21) of ball screw (9) is arranged in the groove (20), and valve rod (1) underpart is provided with bulb (21) is limited in the pressing plate (7) in the groove (20), and pressing plate (7) is fixedly connected with valve rod (1) through screw (8).
2. flat wedge floating type ceramic gate valve according to claim 1; It is characterized in that: said valve plate mechanism comprises the flat voussoir (19) that is spirally connected with ball screw (9); Flat voussoir (19) plane side is inlaid with first ceramic ring (18); Flat voussoir (19) inclined-plane side is bolted with block (17); Be provided with unsteady the inserting (16) that cooperates with flat voussoir (19) sphere between block (17) and the flat voussoir (19), (16) plane side of inserting of floating is inlaid with second ceramic ring (15), and plane, the outside place of first ceramic ring (18) is wedge shape wide at the top and narrow at the bottom with the outside plane that belongs to of second ceramic ring (15).
3. flat wedge floating type ceramic gate valve according to claim 2; It is characterized in that: said valve seat mechanism comprises the inclined-plane wedge-type ceramic valve seat (14) that cooperates with second ceramic ring (15) slip roof pressure, the plane ceramic valve seat (12) that cooperates with first ceramic ring (18) slip roof pressure, and inclined-plane wedge-type valve seat (14) left side is provided with and limits its briquetting that moves (13), plane ceramic valve seat (12) right side is provided with and limits its briquetting that moves (11).
4. according to claim 1 or 2 or 3 described flat wedge floating type ceramic gate valves, it is characterized in that: said valve rod (1) sidepiece is provided with sliding axle (5), and valve gap (3) inboard is provided with guide rail (4), and sliding axle (5) is located in the guide rail (4) and is slidingly connected with guide rail (4).
5. according to claim 1 or 2 or 3 described flat wedge floating type ceramic gate valves, it is characterized in that: be provided with sealing gasket (6) between said valve gap (3) and the valve body (10), valve gap (3) is fastenedly connected through bolt (2) with valve body (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102150024A CN101865299B (en) | 2010-07-01 | 2010-07-01 | Flat wedge floating type ceramic gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102150024A CN101865299B (en) | 2010-07-01 | 2010-07-01 | Flat wedge floating type ceramic gate valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101865299A CN101865299A (en) | 2010-10-20 |
| CN101865299B true CN101865299B (en) | 2012-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102150024A Expired - Fee Related CN101865299B (en) | 2010-07-01 | 2010-07-01 | Flat wedge floating type ceramic gate valve |
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| Country | Link |
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| CN (1) | CN101865299B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103994264A (en) * | 2014-05-20 | 2014-08-20 | 无锡市捷诺自控设备有限公司 | Valve pneumatic actuator |
| CN103982670A (en) * | 2014-06-10 | 2014-08-13 | 沈阳新光通用机械制造有限公司 | Floating wedge gate valve |
| CN104019267B (en) * | 2014-06-13 | 2016-07-06 | 浙江瑞工电气科技有限公司 | A kind of pneumatic actuator for opening and closing station boiler slag-drip opening gate |
| CN105822800B (en) * | 2016-05-23 | 2018-03-23 | 台州艾迪西盛大暖通科技有限公司 | A kind of check-valves |
| CN114198520B (en) * | 2021-12-07 | 2024-01-16 | 宣达实业集团有限公司 | Gate valve with new structure |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2291546Y (en) * | 1997-01-10 | 1998-09-16 | 刘树范 | Floating wedge sluice valve |
| CN1217441A (en) * | 1998-12-09 | 1999-05-26 | 张忠巧 | Gate valve |
| CN1223349A (en) * | 1998-12-08 | 1999-07-21 | 张忠巧 | Gate valve |
| CN2440137Y (en) * | 2000-10-11 | 2001-07-25 | 王从海 | Short flat-wedging type sluice valve |
| EP0926410B1 (en) * | 1997-12-15 | 2003-11-05 | E. Hawle & Co. Flanschen- und Armaturenwerk | Gate valve |
| CN2861654Y (en) * | 2005-12-29 | 2007-01-24 | 朱秀莲 | Zero friction flat-wedging type sluice valve |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001012650A (en) * | 1999-07-01 | 2001-01-16 | Nippon Valqua Ind Ltd | Gate valve for vacuum |
| CN201705969U (en) * | 2010-07-01 | 2011-01-12 | 河南理工大学 | Wedge floating type ceramic valve |
-
2010
- 2010-07-01 CN CN2010102150024A patent/CN101865299B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2291546Y (en) * | 1997-01-10 | 1998-09-16 | 刘树范 | Floating wedge sluice valve |
| EP0926410B1 (en) * | 1997-12-15 | 2003-11-05 | E. Hawle & Co. Flanschen- und Armaturenwerk | Gate valve |
| CN1223349A (en) * | 1998-12-08 | 1999-07-21 | 张忠巧 | Gate valve |
| CN1217441A (en) * | 1998-12-09 | 1999-05-26 | 张忠巧 | Gate valve |
| CN2440137Y (en) * | 2000-10-11 | 2001-07-25 | 王从海 | Short flat-wedging type sluice valve |
| CN2861654Y (en) * | 2005-12-29 | 2007-01-24 | 朱秀莲 | Zero friction flat-wedging type sluice valve |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2001-12650A 2001.01.16 |
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| Publication number | Publication date |
|---|---|
| CN101865299A (en) | 2010-10-20 |
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Granted publication date: 20120704 Termination date: 20160701 |