CN1080701A - Gate valve with rubber liner - Google Patents
Gate valve with rubber liner Download PDFInfo
- Publication number
- CN1080701A CN1080701A CN 92106271 CN92106271A CN1080701A CN 1080701 A CN1080701 A CN 1080701A CN 92106271 CN92106271 CN 92106271 CN 92106271 A CN92106271 A CN 92106271A CN 1080701 A CN1080701 A CN 1080701A
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- CN
- China
- Prior art keywords
- line
- rubber
- sliding sleeve
- gate valve
- face
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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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Abstract
The invention provides the gate valve with rubber liner that a kind of slurry transportation pipeline is used, its structural feature is: the line with rubber tube is to be made by polyether-polyurethane, inside at two line with rubber tubes butt joint end face is hollow or solid ring-type, and the outer ring at two line with rubber tubes butt joint end face is provided with the sliding sleeve annex, and the sliding sleeve annex is to be made of annular sliding sleeve and the spring that is equally spaced.This valve arrangement is simple, good airproof performance, bearing capacity height, long service life.
Description
The present invention relates to a kind of valve, is a kind of gate valve with rubber liner.
At present, China adopts mud valve, coal slurry valve, air water valve etc. mostly in the Slurry Pipeline Transportation engineering, shortcoming such as these valves exist that seal durability is low more, wear resistance and corrosion resistance difference.There is a kind of gate valve with rubber liner in the U.S., it is three partly to constitute by driving, connect and working, the driving of this valve is similar with existing other slurry valves with being connected partly, its work partly then connects as one with two line with rubber flanges, two line with rubber tubes its end face when flashboard does not cut out in the flange is in the mated condition of interference, with etch and the wearing and tearing of isolated pipeline medium to valve flange, when closing flashboard, flashboard then pushes through two line with rubber tube end faces and reaches the purpose of throttle down.This kind valve is owing to only depend on the natural interference fit of line with rubber tube to realize the sealing of line with rubber tube and line with rubber tube or line with rubber tube end face and flashboard plate face, therefore what be prone to line with rubber tube end face turns over lip and malreduction phenomenon, its line with rubber tube end face is often cut damage by the flashboard blade, so the bearing capacity when this valve uses only limits to below the 1.6MPa.
The purpose of this invention is to provide a kind of gate valve with rubber liner that has elastic appendages and elastic structure, to improve elasticity, resetting property, sealing and the bearing capacity of this valve bush packing element end face.
The object of the present invention is achieved like this: this gate valve with rubber liner comprises driving, connects and work two flanges and two butt joint line with rubber tubes partly, it is characterized in that: the line with rubber tube is made by polyether-polyurethane, inside at two line with rubber tubes butt joint end face is respectively hollow or solid ring-type, and the outer ring at two line with rubber tubes butt joint end face is provided with the sliding sleeve annex, and the sliding sleeve annex is to be made of annular sliding sleeve and the spring that is equally spaced.
Narrate embodiments of the invention according to accompanying drawing below.
Fig. 1 is the plan view of gate valve with rubber liner.
Fig. 2 is the side view of Fig. 1.
Fig. 3 is the partial structurtes schematic representation of line with rubber tube butt end.
Fig. 4 is a line with rubber tube butt end boring ring schematic representation.
Shown in Fig. 1-2, the driving part of this gate valve with rubber liner is a hydraulic driving, and it comprises, and oil hydraulic cylinder 1, hydraulic fluid port 2, hydraulic fluid port 3, driveshaft 4, flashboard sell through joint efforts 5, conjuncted axle 6 and flashboard 7.This driving part also can adopt Mechanical Driven or manual.Connecting partly, the bottom just is the work part, work partly comprises the flange 8 and the flange 9 of two butt joints, flange 8 and 9 joints are rectangle valve bodies 10, and between two flange joints and valve body 10, be respectively equipped with circular groove, circular groove is except that corresponding flashboard 7 blade place openings, and other position is in closed state.As shown in Figure 3-4, in circular groove, be respectively equipped with annular sliding sleeve 11 and spring 12, sliding sleeve 11 can be used rigid plastics, and as teflon, also available metal (as steel, cast iron, stainless steel and the copper) collar is inlayed teflon or polyurethane again in the end that contacts plug-in strip 7.Spring 12 is equally distributed in the circular groove of sliding sleeve 11 ear end faces.Inlaying line with rubber tube 13 and 14 respectively in flange 8 and flange 9, the lining tube is to be made by the wear-resisting polyether-polyurethane that has favorable elasticity again, and two rear ends of two line with rubber tubes have annular boss, are embedded in the set annular groove of two flange corresponding end with its boss.The front-end face of two line with rubber tubes is a sealed working face, and the front end of two line with rubber tubes is the front ends that are embedded in two flanges by turnup structure separately, and two front-end faces of two line with rubber tubes are with interference contact seal.In order to improve the elasticity of two line with rubber tube front ends, be respectively equipped with cavity ring 15 and 16 in the inside of both ends of the surface, cavity ring circularizes before the moulding of line with rubber tube with the elastic force flexible pipe and is embedded in the line with rubber tube.Cavity ring 15 and 16 also can adopt elastomeric solid rubber ring to make, and perhaps makes with sponge or plastic foam, and solid torus also is embedded in the line with rubber tube before the moulding of line with rubber tube.
The present invention is simple in structure, make the line with rubber tube owing to adopt polyether-polyurethane, not only wear-resisting property is good, water insoluble, and suitable elasticity arranged again, adopt shift sleeve structure again in the front end working surface outer ring of line with rubber tube in addition, and in the hollow or solid elastomeric structure of the inner employing of front-end face, not only can improve the bearing capacity of sealed working face, make this valve pressure-bearing up to 6.4MPa, and increased the elasticity of seal face, thereby overcome turning over lip, malreduction or being cut the shortcoming of damage by the flashboard blade of sealed working face.Because of its sliding sleeve or sliding sleeve front-end face adopt polytetrafluoroethylmaterial material, not only against corrosion, non-deformability is strong, and do not hinder again flashboard face, the working life of improving flashboard effectively.
Claims (4)
1, a kind of gate valve with rubber liner, it comprises driving, connects and work two flanges and two butt joint line with rubber tubes partly, it is characterized in that: the line with rubber tube is made by polyether-polyurethane, inside at two line with rubber tubes butt joint end face is hollow or solid ring-type, and the outer ring at two line with rubber tubes butt joint end face is provided with the sliding sleeve annex, and the sliding sleeve annex is to be made of annular sliding sleeve and the spring that is equally spaced.
2, gate valve with rubber liner according to claim 1 is characterized in that: sliding sleeve is to inlay teflon by metal collar front-end face place.
3, gate valve with rubber liner according to claim 1 is characterized in that: cavity ring is to circularize with the elastic force flexible pipe, and solid torus is embedded in the line with rubber tube before the moulding of line with rubber tube.
4, gate valve with rubber liner according to claim 1 is characterized in that: solid torus can adopt high elastic rubber to make, and perhaps makes with sponge or plastic foam, and solid torus is embedded in the line with rubber tube before the moulding of line with rubber tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92106271 CN1080701A (en) | 1992-06-26 | 1992-06-26 | Gate valve with rubber liner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92106271 CN1080701A (en) | 1992-06-26 | 1992-06-26 | Gate valve with rubber liner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1080701A true CN1080701A (en) | 1994-01-12 |
Family
ID=4941962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92106271 Pending CN1080701A (en) | 1992-06-26 | 1992-06-26 | Gate valve with rubber liner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1080701A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100351559C (en) * | 2002-01-15 | 2007-11-28 | 魏尔多巴西有限公司 | Improvement introduced into a guillotine valve |
| CN107351423A (en) * | 2016-08-19 | 2017-11-17 | 温州奇胜阀门制造有限公司 | A kind of special liner polyurethane knife gate valve of antiacid caustic corrosion and manufacturing process |
-
1992
- 1992-06-26 CN CN 92106271 patent/CN1080701A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100351559C (en) * | 2002-01-15 | 2007-11-28 | 魏尔多巴西有限公司 | Improvement introduced into a guillotine valve |
| CN107351423A (en) * | 2016-08-19 | 2017-11-17 | 温州奇胜阀门制造有限公司 | A kind of special liner polyurethane knife gate valve of antiacid caustic corrosion and manufacturing process |
| CN107351423B (en) * | 2016-08-19 | 2021-10-26 | 奇胜阀门有限公司 | Acid and alkali corrosion resistant special lining polyurethane knife gate valve and manufacturing process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |