CN201739544U - Pneumatic double gate valve for powder material transportation - Google Patents
Pneumatic double gate valve for powder material transportation Download PDFInfo
- Publication number
- CN201739544U CN201739544U CN2010202541659U CN201020254165U CN201739544U CN 201739544 U CN201739544 U CN 201739544U CN 2010202541659 U CN2010202541659 U CN 2010202541659U CN 201020254165 U CN201020254165 U CN 201020254165U CN 201739544 U CN201739544 U CN 201739544U
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Abstract
The utility model relates to a pneumatic double gate valve for powder material transportation. The double gate valve comprises a valve cylinder, a valve body, a valve plate and two side alloy valve covers, wherein the valve body at one side of the valve cylinder is provided with a sealing gland; the valve body at the inner side of the sealing gland is sequentially provided with a copper sheath compression ring and a polytetrafluoroethylene sealing ring; one end of the copper sheath compression ring is provided with an inner groove; the inner groove of the copper sheath compression ring is internally provided with a high elastic fluorine rubber sealing ring A; the outer circumference of one end of the polytetrafluoroethylene sealing ring is provided with a groove; the groove of the polytetrafluoroethylene sealing ring is internally provided with a high elastic fluorine rubber sealing ring B; the sealing rings on the two side alloy valve covers are respectively matched and sealed with alloy valve rings on an inlet and an outlet of the valve cover; alloy valve cover hard sealing layers are arranged on sealing surfaces of the sealing rings of the two side alloy valve cover; and the sealing surfaces of the alloy valve rings are provided with alloy valve ring hard sealing layers. The pneumatic double gate valve avoids the shortcomings of other valves, prolongs service life by 3 to 7 times compared with common valves, can withstand pressure of 1.0-1.6MPa and has the working temperature of less than or equal to 200 DEG C.
Description
Technical field
The utility model belongs to the special valve of powder air-transport system.Be used for two plastid fluid air-transport systems of regulating and controlling powder, gas mixing, it is fast to be particularly useful for transporting velocity, easily causes all kinds of granular materials of wearing and tearing.
Background technique
The sealing surface of employed other valve of original air-transport system easily blocks granular material, causes material to enter valve pocket, can cause the wearing and tearing and the leakage of valve very soon.People have adopted various measures for these valves in air-transport system, do not allow granular material contact seal face as far as possible, more can not enter valve pocket.Because the field working conditions complexity, be difficult to avoid operation lack of standardization, valve sealing face is destroyed, the valve pocket charging causes the closure that the valve wearing and tearing can not be good.
Summary of the invention
For the sealing surface that solves existing valve easily blocks granular material, cause material to enter valve pocket, the problem that causes the valve wearing and tearing very soon and leak, the utility model provides a kind of pneumatic double flap valve that powder material is carried that is used for that improves sealing configuration.
Concrete Technological improvement plan is as follows:
The pneumatic double flap valve that is used for the powder material conveying comprises valve cylinder 10, valve body 5 and valve plate 7; The valve body 5 of valve cylinder one side is provided with sealing gland 1, the piston rod of valve cylinder stretches in the valve plate 7 through valve body, the rod end of piston rod is connecting the spring seat connecting rod, the both sides of spring seat connecting rod are connecting alloy valve gap 9 respectively, both sides alloy valve gap 9 outer side surfaces are corresponding with the import and the outlet of valve plate both sides respectively, both sides alloy valve gap 9 inner side surfaces contact with two springs in the spring seat connecting rod respectively, and the circumferential edges of each alloy valve gap 9 outer side surface is provided with seal ring; The import of described valve plate both sides and the outlet on be respectively equipped with alloy valve circle 8, the seal ring on the both sides alloy valve gap 9 respectively with valve plate 7 imports and the outlet on alloy valve circle 8 fitted seal;
Be provided with copper sheathing pressure ring 2 and teflin ring 4 on the valve body 5 of described sealing gland inboard successively, copper sheathing pressure ring 2 one ends that contact with teflin ring 4 are provided with inner groovy, are provided with the fluorine-based rubber seal A3 of high elasticity in the inner groovy of copper sheathing pressure ring; The teflin ring 4 one end excircles that contact with the copper sheathing pressure ring are provided with groove, are provided with the fluorine-based rubber seal B11 of high elasticity in the groove of teflin ring;
The sealing surface of both sides alloy valve gap 9 seal rings is provided with the hard sealing layer 13 of alloy valve gap, and the sealing surface of alloy valve circle 8 is provided with the hard sealing layer 12 of alloy valve circle.
Useful technique effect of the present utility model embodies in the following areas.
1, structural advantages
Utilize spring that both sides alloy valve gap 9 is pressed on respectively on the sealing surface of the alloy valve circle 8 in valve plate 7 imports and the outlet, make valve be in sealing state, freely compress and not stuck, the trace wearing and tearing of sealing surface can be compensated by spring compression.Avoided the weakness of other valves fully, be 3-7 times of general valve working life.
(1) A, alloy valve gap 9 have wearable hard alloy with the sealing surface of alloy valve circle 8, and alloy valve gap 9 and alloy valve circle 8 sealing surfaces can not abraded mutually.Hard alloy layer has very high scurf resistance and long working life.B, its permission powder enter valve pocket, the evil that powder is entered valve pocket becomes profit, the powder that enters valve pocket is owing to being subjected to the propelling movement of alloy valve gap 9 and rotatablely moving, being equivalent to has increased abrasive to hard sealing surface, prolongation along with service time, make the more level and smooth light of hard sealing surfaces, the alloy valve gap compresses more closely knit.
(2) sealing gland 1 compresses copper sheathing pressure ring 2 by fixing bolt, and the main effect of copper sheathing pressure ring 2 provides the required pretightening force of valve stem seal, guarantees the fixed support and the guiding of valve rod; Copper sheathing pressure ring 2 is in the prestressing state with the fluorine-based rubber seal A3 of high elasticity and two kinds of multi-form seal rings of the fluorine-based rubber seal B11 of high elasticity; Fluorine-based rubber seal A3 of high elasticity and the fluorine-based rubber seal B11 of high elasticity are pressed on the teflin ring 4, have solved between valve rod and the copper sheathing, the sealing problem between teflon and the valve body.
Teflin ring 4 utilizes the characteristic of selflubricating, the anti-attrition of teflon to stop dust to enter in the valve rod, is the first road sealing means.Fluorine-based rubber seal A3 of high elasticity and the fluorine-based rubber seal B11 of high elasticity are as the second road sealing means.After the stem wear, the fluorine-based rubber seal A3 of high elasticity and automatic reparation of the fluorine-based rubber seal B11 distortion of high elasticity that are under the pretension state remedy, thereby have guaranteed sealing effect.
2, predominant use.The utility model is applicable to that working medium is the air-transport system of dry powdery material, can be used as valves such as feeding valve, discharge valve, outlet valve.Withstand voltage 1.0-1.6MPa, operating temperature≤200 ℃.Be applicable to building materials, electric power, chemical industry, mine, iron and steel, metallurgy, etc. all kinds of granular material fed sheet of a media that wearing and tearing are arranged of industry, as cement, pulverized fuel ash, silica flour, steel-making slag powder, nickel powder, alum breeze etc.
Description of drawings
Fig. 1 is the utility model structural representation,
Fig. 2 is a valve body place partial enlarged drawing among Fig. 1,
Fig. 3 is alloy valve gap and an alloy valve circle sealing surface place enlarged view among Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, the utility model is done to describe further by embodiment.
Embodiment:
Referring to Fig. 1, the pneumatic double flap valve that is used for the powder material conveying comprises valve cylinder 10, valve body 5, valve plate 7, both sides alloy valve gap 9 and guide ring 6.On the valve body 5 of valve cylinder one side sealing gland 1 is installed, copper sheathing pressure ring 2 and teflin ring 4 are installed on the valve body 5 of sealing gland inboard successively, copper sheathing pressure ring 2 one ends that contact with teflin ring 4 offer inner groovy, and the fluorine-based rubber seal A3 of high elasticity is housed in the inner groovy of copper sheathing pressure ring; Offer groove on the teflin ring 4 one end excircles that contact with the copper sheathing pressure ring, the fluorine-based rubber seal B11 of high elasticity is housed in the groove of teflin ring, see Fig. 2.The piston rod of valve cylinder stretches in the valve plate 7 through valve body, the rod end of piston rod is connecting the spring seat connecting rod, the both sides of spring seat connecting rod are connecting alloy valve gap 9 respectively, both sides alloy valve gap 9 outer side surfaces are corresponding with the import and the outlet of valve plate 7 both sides respectively, both sides alloy valve gap 9 inner side surfaces contact with two springs in the spring seat connecting rod respectively, on the circumferential edges of each alloy valve gap 9 outer side surface seal ring are installed; Be separately installed with alloy valve circle 8 in the import of valve plate 7 both sides and the outlet; The sealing surface of both sides alloy valve gap 9 seal rings is provided with the hard sealing layer 13 of alloy valve gap, the sealing surface of alloy valve circle 8 is provided with the hard sealing layer 12 of alloy valve circle, seal ring on the both sides alloy valve gap 9 respectively with valve plate 7 imports and the outlet on alloy valve circle 8 fitted seal, see Fig. 3.
Claims (1)
1. be used for the pneumatic double flap valve that powder material is carried, comprise valve cylinder (10), valve body (5) and valve plate (7); The valve body (5) of valve cylinder one side is provided with sealing gland (1), the piston rod of valve cylinder stretches in the valve plate (7) through valve body, the rod end of piston rod is connecting the spring seat connecting rod, the both sides of spring seat connecting rod are connecting alloy valve gap (9) respectively, both sides alloy valve gaps (9) outer side surface is corresponding with the import and the outlet of valve plate both sides respectively, both sides alloy valve gaps (9) inner side surface contacts with two springs in the spring seat connecting rod respectively, and the circumferential edges of each alloy valve gap (9) outer side surface is provided with seal ring; The import of described valve plate both sides and the outlet on be respectively equipped with alloy valve circle (8), the seal ring on the both sides alloy valve gaps (9) respectively with valve plate (7) import and the outlet on alloy valve circle (8) fitted seal, it is characterized in that:
Be provided with copper sheathing pressure ring (2) and teflin ring (4) on the valve body (5) of described sealing gland inboard successively, copper sheathing pressure ring (2) one ends that contact with teflin ring (4) are provided with inner groovy, are provided with the fluorine-based rubber seal A of high elasticity (3) in the inner groovy of copper sheathing pressure ring; Teflin ring (4) the one end excircles that contact with the copper sheathing pressure ring are provided with groove, are provided with the fluorine-based rubber seal B of high elasticity (11) in the groove of teflin ring;
The sealing surface of both sides alloy valve gaps (9) seal ring is provided with the hard sealing layer of alloy valve gap (13), and the sealing surface of alloy valve circle (8) is provided with the hard sealing layer of alloy valve circle (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202541659U CN201739544U (en) | 2010-07-08 | 2010-07-08 | Pneumatic double gate valve for powder material transportation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202541659U CN201739544U (en) | 2010-07-08 | 2010-07-08 | Pneumatic double gate valve for powder material transportation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201739544U true CN201739544U (en) | 2011-02-09 |
Family
ID=43554819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202541659U Expired - Fee Related CN201739544U (en) | 2010-07-08 | 2010-07-08 | Pneumatic double gate valve for powder material transportation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201739544U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094989A (en) * | 2011-03-04 | 2011-06-15 | 济南煜龙气力输送设备有限公司 | Pneumatic charging and discharging valve |
| CN104534111A (en) * | 2014-12-29 | 2015-04-22 | 博纳斯威阀门集团有限公司 | Double-clack type valve |
| CN111197661A (en) * | 2020-01-20 | 2020-05-26 | 邵延荣 | Gate valve |
-
2010
- 2010-07-08 CN CN2010202541659U patent/CN201739544U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094989A (en) * | 2011-03-04 | 2011-06-15 | 济南煜龙气力输送设备有限公司 | Pneumatic charging and discharging valve |
| CN104534111A (en) * | 2014-12-29 | 2015-04-22 | 博纳斯威阀门集团有限公司 | Double-clack type valve |
| CN111197661A (en) * | 2020-01-20 | 2020-05-26 | 邵延荣 | Gate valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110209 Termination date: 20140708 |
|
| EXPY | Termination of patent right or utility model |