CN206329779U - A kind of magnetic suspension air bleeding valve - Google Patents
A kind of magnetic suspension air bleeding valve Download PDFInfo
- Publication number
- CN206329779U CN206329779U CN201621458422.4U CN201621458422U CN206329779U CN 206329779 U CN206329779 U CN 206329779U CN 201621458422 U CN201621458422 U CN 201621458422U CN 206329779 U CN206329779 U CN 206329779U
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- ball float
- cover
- air bleeding
- lifting cover
- bleeding valve
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Abstract
The utility model discloses a kind of magnetic suspension air bleeding valve, with valve body, bonnet, having on bonnet has ball float cover in big steam vent, valve body, have ball float and lifting cover in ball float cover, it is characterised in that：The height of the lifting cover, ball float and ball float cover is lower than conventional products；Annular magnetic steel is set in the periphery of lifting cover and ball float, and the N poles of magnet steel are located at outside；In the uniform some bar magnets in inwall longitudinal direction of ball float cover, the N poles of magnet steel are located at inner side.The utility model due to using the low lifting cover of height, ball float and and ball float cover, therefore whole height is low;Annular magnetic steel is set in the periphery of lifting cover and ball float, N poles are located at outside, in the longitudinally disposed some uniform bar magnets of the inwall of ball float cover, N poles are located at inner side, therefore, even if to be arranged on gradient larger for air bleeding valve（Such as 5 ° of ＜）Pipeline on, lifting cover and ball float will not occur crooked and not dead in uphill process, also, and can ensure that good centering and sealing.
Description
Technical field
The utility model is related to a kind of air bleeding valve, especially magnetic suspension air bleeding valve.
Background technology
In order to improve transfer efficiency and prevent that aqueduct is damaged because of negative pressure, combined high-speed exhaust intake valve
（Hereinafter referred to as air bleeding valve）It is widely used on aqueduct, is typically mounted at the peak of pipeline or easily gathers the position of gas
Put.The structural shape of air bleeding valve is more, and a kind of typical structure is disclosed in CN2758563, and be classified as typical knot by GB
Structure, the weak point of this kind of air bleeding valve is：
A) can not be larger in gradient（For example>2°）Pipeline on use.Due to lifting cover guide post and pilot hole it
Between, between ball float and ball float cover have larger gap, if the perpendicularity deviation for installing heel row air valve is larger, then due to floating
Force direction requires that the direction of sealing is inconsistent with large and small steam vent, and lifting cover and ball float are easy when rising under water buoyancy effect
Contacted with the inwall of respective aperture, cause crooked not dead；Or because large and small steam vent valve seat and flap can not accurately centering,
Cause sealing unreliable, cause leak.Therefore, the installation gradient of national regulations air bleeding valve answers 2 ° of ＜, this just to installation and is managed
Road laying adds difficulty；
B) draining valve having needs to be arranged in missile silo, need to connect a service valve toward contact below, therefore it is required that
There is higher missile silo, can not be used when pipeline is shallower from the ground.
The content of the invention
The utility model is to solve the above-mentioned technical deficiency of air bleeding valve, so as to develop a kind of use magnetic suspension structure
Air bleeding valve.
Above-mentioned technical problem of the present utility model is mainly what is be addressed by following technical proposals：
A kind of magnetic suspension air bleeding valve, with valve body, bonnet, having on bonnet has ball float cover in big steam vent, valve body, ball float cover
Inside there are ball float and lifting cover, it is characterised in that：The height of the lifting cover, ball float and ball float cover is lower than conventional products；Rising
The periphery of drop cover and ball float sets magnet steel, and the N poles of magnet steel are located at outside；In some magnet steel of the inner wall even distribution of ball float cover, the N of magnet steel
Pole is located at inner side.
The technical solution of the utility model can also be further perfect：
Preferably, the longitudinally disposed three uniform bar magnets of ball float cover cylinder inner wall, the N poles of magnet steel are positioned at interior
Side.
Preferably, the bar magnet is screwed on the inwall of ball float cover, and after fixing, groups on the inside of three magnet steel
Into inscribed circle center line it is consistent with the center line of ball float cover.
Preferably, the periphery of described and ball float and lifting cover respectively sets annular magnetic steel one and annular magnetic steel two.
Preferably, the bottom of the lifting cover is an oblate cylinder, top is outside an outer frustum, oblate cylinder
It is provided with annular magnetic steel two week, N poles are located at outside, and the two pours into an integrated entity, oblate cylinder is cylindrical and annular magnetic steel two after processing
It is cylindrical to be located on same center line.
Preferably, the maximum gauge of the outer frustum of lifting cover is slightly less than the diameter of big steam vent, to be closed in big steam vent
Before closing, ventilation（Water）Area be gradually reduced, to reduce impulsive force；There are a shoulder hole, center line and oblate post in outer frustum center
The center line of body is consistent, the top surface insertion of the shallower interior cone machine hole with oblate cylinder lower end；The bottom of shoulder hole is provided with center
The small exhaust nozzle of stairstepping with small de-air hole, top screw-in center has the holding screw of larger aperture, small exhaust nozzle is consolidated
It is fixed；The lower end of small exhaust nozzle is the valve seat of small de-air hole, the top surface of slightly prominent interior cone machine hole, between ball float arc top surface
Space in gather a certain amount of body of calming the anger.
Preferably, lifting cover is using the proportion material smaller than ball float.
The utility model is due to using height low lifting cover, ball float and and ball float cover；In the periphery of lifting cover and ball float
Annular magnetic steel is set, and N poles are located at outside；Some uniform bar magnets are provided with the inwall of ball float cover, N poles are located at interior
Side, because magnetic steel material uses NdFeB, and the N pole spans of two parafacies pair are close, therefore have very strong repulsive force, make lifting
Cover and ball float are in magnetic suspension state.Even if it is larger that air bleeding valve is arranged on gradient（Such as 5 ° of ＜）Pipeline on, lifting cover and
Ball float is in uphill process, the interior side contacts that their periphery also will not be with bar magnet, even if so not longer guiding,
Also will not occur crooked and not dead, and can guarantee that the valve seat and flap precise alignment of large and small steam vent, it is ensured that good sealing
Property；
Further, since employing highly low lifting cover and ball float, the height of air bleeding valve is greatly reduced, is adapted for mount on not
In high missile silo.
Brief description of the drawings
Accompanying drawing 1, is structural representation of the present utility model；
The A-A top views that accompanying drawing 2 is Fig. 1；
Accompanying drawing 3, is longitudinal sectional views of the Fig. 1 when lifting cover and ball float rise.
Description of reference numerals：Valve body 1, cushion pad 2, ball float cover 3, ball float 4, screw 5, annular magnetic steel 1, bar magnet 7,
Annular magnetic steel 28, lifting cover 9, bolt 10, packing ring 11 and nut 12, bonnet 13, O-ring seals 1, hood 15, O shapes are close
Seal 2 16, holding screw 18, small exhaust nozzle 19;
Water inlet A1, big steam vent A2, annular chamber H1, discharge chamber H2, clearance G;
Exhausting window a, small de-air hole c, limbers m.
Embodiment
Below by embodiment, and with reference to accompanying drawing, the technical solution of the utility model is described in further detail.
Embodiment：
As shown in figure 1, the utility model is by valve body 1, and cushion pad 2, ball float cover 3, ball float 4, screw 5, annular magnetic steel 1,
Bar magnet 7, annular magnetic steel 28, lifting cover 9, bolt 10, packing ring 11, nut 12, bonnet 13, O-ring seals 1, exhaust
Cover 15, O-ring seals 2 16, bolt 17, holding screw 18, the small grade of exhaust nozzle 19 part composition, the center line of above-mentioned part and
The center line of the inner side inscribed circle of bar magnet 7 is located along the same line.
Valve body 1 is the hollow valve casing that two ends have flange, middle part is cylinder, and lower through-hole is water inlet A1, diameter compares cylinder
Internal diameter is small;Lower flange is typically connected with the upper flange of service valve, the flange connection on the lower flange and ventilating water pipe of service valve,
When overhauling air bleeding valve, service valve is closed, in case the water in pipeline sprays；The outer rim of upper flange is provided with several uniform installations
Valve body 1, ball float cover 3 and bonnet 13, are integrally fixed by hole with bolt 10, packing ring 11 and nut 12；The top of upper through hole is provided with
Two grooves and an internal shoulder up and down, O-ring seals 1 are arranged in upper groove.
The profile of bonnet 13 is stairstepping, and diameter is up big and down small, and outer rim is provided with several mounting holes, quantity, size and point
Cloth is consistent with the mounting hole on the upper flange of valve body 1；Center is provided with big steam vent A2；Upper surface is close to big steam vent A2Vicinity
It is furnished with three projections for having certain altitude；O-ring seals 2 16 are embedded with the inverted trapezoidal annular groove of lower surface, big steam vent is used as
A2Valve seat；The lower convex platform of lower end and the low groove pine of the upper end of valve body 1 are matched somebody with somebody, and compress ball float cover 3；The convex platform and valve body of lower end
The upper groove slide fit of 1 upper end, and O-ring seals 1 are compressed, leaked to prevent medium.
Hood 15 is similar to the plate of a back-off, is fixed on bolt 17 on three projections of the upper surface of bonnet 13, and it is made
Be prevent the water sprayed from big steam vent A2 to surrounding splash and prevent that dirt from entering air bleeding valve.Hood 15 and bonnet 13
Between cavity be discharge chamber H2。
Ball float cover 3 is cylinder in the flat thin cylinder that a upper end carries short side flange, the cylinder for being arranged on valve body 1
The through hole slide fit of the upper end internal shoulder of cylindrical and valve body 1 on top, the short side flange of upper end be pressed in the lower surface of bonnet 13 with
Between the low groove of the upper end of valve body 1；Cavity between the outer wall of cylinder and the inwall of the cylinder of valve body 1 is annular chamber H1；On cylinder
The perisporium in portion is provided with 6 uniform exhausting window a, and window a top and the lower surface of the upper end internal shoulder of valve body 1 is substantially concordant,
The omoplate of window a following and lifting cover 9 is substantially concordant；Baseplane center hole in be provided with cushion pad 2, to prevent ball float it is quick under
It is damaged when falling；Some limbers m are additionally provided with the appropriate location of baseplane.
On the inwall of lifting cover cylinder, be longitudinally evenly equipped with three bar magnets 7, N poles are located at inner side, its installation site referring to
Fig. 2, after being fixed with screw 5 on the inwall of ball float cover 3, in the center line and ball float cover 3 of the inscribed circle of three inner side compositions
Heart line is consistent.
Lifting cover 9 is arranged in ball float cover 3, and its outside cylinder is moved with the inscribed circle of composition on the inside of three bar magnets matches somebody with somebody, can
Freely move up and down wherein.The bottom of lifting cover 9 is an oblate cylinder, and top is outside an outer frustum, oblate cylinder
It is provided with annular magnetic steel 28 week, N poles are located at outside, and the two pours into an integrated entity, and oblate cylinder is cylindrical with annular magnetic steel 28 after processing
It is cylindrical be located at same center line on；Because the material of magnet steel is NdFeB, the intensity that magnetizes can be more than 3000 Gausses, and its N
Pole and the N poles close proximity of bar magnet 7（＜ 2mm）, therefore have very strong repulsive force, lifting cover 9 is in magnetic suspension state,
Even if slightly being tilted when being oriented to shorter length or installation, in uphill process, the interior side joint that its periphery also will not be with bar magnet 7
Touch and cause crooked not dead, and have good centering, it is ensured that the good sealing of large and small stomata, therefore oblate cylinder
Height can be shorter, makes air bleeding valve height reduction.Because the height of air bleeding valve is low, corresponding runner is just shorter, exhaust terminate into
After water, current will be quickly from big steam vent A2It is middle to spray, in order to reduce spray volume, lifting cover 9 should be made to close big steam vent as early as possible
A2, is that this lifting cover selects the material smaller than the proportion of ball float 4, so after water enters ball float cover 3, lifting cover 9 can be compared with morning
Rise and close big steam vent.The maximum gauge of outer frustum is slightly less than big steam vent A2Diameter, in big steam vent A2Before closing,
Ventilation（Water）Area be gradually reduced, turn off speed and slow down gradually, reduce impulsive force；There is a shoulder hole at outer frustum center, in
Heart line is consistent with the center line of oblate cylinder, the top surface insertion of the shallower interior cone machine hole with oblate cylinder lower end；Shoulder hole
Bottom has the small exhaust nozzle 19 of small de-air hole c stairstepping provided with center, and material is hard rubber, and top screw-in center has larger
The holding screw 18 of aperture, small exhaust nozzle 19 is fixed；The lower end of small exhaust nozzle 19 is the valve seat of small de-air hole, slightly protrudes inner cone
The top surface in platform hole, to gather a certain amount of body of calming the anger in the space between the arc top surface of ball float 4.When lifting cover 9 is in water
When rising to extreme higher position under buoyancy, the upper surface of oblate cylinder is contacted with O-ring seals 2 16, by big steam vent A2Close
Close, and internal pressure effect under compress it is water-tight.
Ball float 4 is arranged on the bottom of ball float cover 3, the lower section of lifting cover 9, and in order to reduce height, the profile of ball float is using top
The flat oblate cylinder of portion's slightly arc, shell is stainless steel, and the inwall of periphery sets annular magnetic steel 1, and N poles are located at outside,
Specific requirement and function, which refer to lifting cover 9, to be introduced.The arcwall face at top as small de-air hole c flap, for more reliably closing
Close small de-air hole c.Ball float 4 can not be too small, can not be too light, and proportion 0.7-0. 8 is advisable.
Operation principle
(Fig. 1) lifting cover 9 and ball float 4 are in the bottom of ball float cover 3 when anhydrous in valve.After the maintenance of first or pipe-line system
Again to during piped water supply, substantial amounts of air is through service valve, water inlet A in pipeline1, annular chamber H1, exhausting window a enter ball float cover 3
It is interior, through big steam vent A after2With discharge chamber H2Quickly discharge.Because air bleeding valve is typically mounted at the peak of pipeline, because
This is after the air in pipeline is drained, and water is first filled with pipeline, then passes through water inlet A1Into air bleeding valve, along annular chamber H1
Rise, the clearance G between the inwall and lifting cover 9, the periphery of ball float 4 after more than exhausting window a height through ball float cover 3 is flowed into
In ball float cover 3；Water is entered in ball float cover by the limbers m of the bottom of ball float cover 3 simultaneously.In the presence of buoyancy, the He of lifting cover 9
Ball float 4 rises, because water has just flooded ball float cover 3 within moment, and because the proportion of lifting cover 9 is smaller than ball float, so lifting cover 9
It can earlier rise, big steam vent A2 is closed, in case substantial amounts of water outwards sprays.Big steam vent A2After closing, remained in water
Ball float 4 of the air by rising under a certain pressure, discharged by small de-air hole C, then ball float 4 is by small de-air hole
C is closed, and in the presence of buoyancy, large and small steam vent is kept good sealing, so far, Quick air-discharge terminates（Fig. 3）；When
Quick air-discharge terminates, after large and small vent closure, part is remained in the space below the top of ball float 4 and lifting cover 9 empty
Gas, this partial air is closed, and with certain pressure, therefore in normal water supply, big steam vent A2It is to open
's.With the change of temperature and pressure in water supply process, the air in water is released, and to annular chamber H1And ball float 4
The Spatial Agglomeration of top, air pressure is constantly raised, and water level is gradually reduced in valve, and the buoyancy suffered by ball float 4 is also decreased, and works as ball float
When 4 weight exceedes suffered buoyancy and small de-air hole c because of upwards thrust sum suffered by inside and outside differential pressure, ball float 4 declines, float
Stomata c is opened, annular chamber H1And the body of calming the anger of the top of ball float 4 is discharged by small de-air hole c；After body of calming the anger discharge,
Water level rises in valve, and ball float 4 rises, again closes small de-air hole, such iterative cycles.
When pipe drainage, negative pressure is produced in pipeline, causes water level in valve to decline rapidly, ball float 4 and lifting cover 9 are fallen back to
The bottom of ball float cover 3, big steam vent is opened, and outside air passes through order tonifying Qi into pipeline opposite during with exhaust, it is therefore prevented that
Pipeline is damaged because of negative pressure.
Claims (6)
1. a kind of magnetic suspension air bleeding valve, with valve body（1）, bonnet（13）, have big steam vent on bonnet（A2）, valve body（1）Inside have floating
Ball cover（3）, have ball float in ball float cover（4）And lifting cover（9）, it is characterised in that：The lifting cover（9）, ball float（4）With ball float cover
（3）Height it is lower than conventional products；In lifting cover（9）And ball float（4）Periphery magnet steel is set, the N poles of magnet steel are located at outside；
In ball float cover（3）Some magnet steel of inner wall even distribution, the N poles of magnet steel are located at inner side.
2. magnetic suspension air bleeding valve according to claim 1, it is characterised in that：Ball float cover（3）Cylinder inner wall is longitudinally disposed
Three uniform bar magnets（7）.
3. magnetic suspension air bleeding valve according to claim 2, it is characterised in that：The bar magnet（7）Use screw（5）It is fixed
In ball float cover（3）Inwall on, it is fixed after, the center line of the inscribed circle of composition and ball float cover on the inside of three magnet steel（3）Center
Line is consistent.
4. the magnetic suspension air bleeding valve according to claim 1 or 2 or 3, it is characterised in that：Described and ball float（4）And lifting cover
（9）Periphery annular magnetic steel one is respectively set（6）With annular magnetic steel two（8）.
5. the magnetic suspension air bleeding valve according to claim 1 or 2 or 3, it is characterised in that：The lifting cover（9）Bottom be
One oblate cylinder, top is an outer frustum, and the outer rim of oblate cylinder is provided with annular magnetic steel two（8）, the two pours into an integrated entity,
Oblate cylinder is cylindrical with annular magnetic steel two (8 after processing）It is cylindrical be located at same center line on.
6. the magnetic suspension air bleeding valve according to claim 1 or 2 or 3, it is characterised in that：Lifting cover（9）The maximum of outer frustum
Diameter is slightly less than big steam vent（A2）Diameter, make big steam vent（A2）Before closing, ventilation（Water）Area be gradually reduced, to subtract
Small impulsive force；There is a shoulder hole at outer frustum center, and center line is consistent with the center line of oblate cylinder, with oblate cylinder lower end compared with
The top surface insertion of shallow interior cone machine hole；The bottom of shoulder hole has small de-air hole provided with center（c）The small exhaust nozzle of stairstepping
（19）, top screw-in center has the holding screw of larger aperture（18）, by small exhaust nozzle（19）It is fixed；Small exhaust nozzle（19）'s
Lower end is the valve seat of small de-air hole, it is slightly prominent in cone machine hole top surface, to ball float（4）Gather in the space of arc top surface
A certain amount of body of calming the anger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621458422.4U CN206329779U (en) | 2016-12-28 | 2016-12-28 | A kind of magnetic suspension air bleeding valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621458422.4U CN206329779U (en) | 2016-12-28 | 2016-12-28 | A kind of magnetic suspension air bleeding valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206329779U true CN206329779U (en) | 2017-07-14 |
Family
ID=59292912
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621458422.4U Active CN206329779U (en) | 2016-12-28 | 2016-12-28 | A kind of magnetic suspension air bleeding valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206329779U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106594345A (en) * | 2016-12-28 | 2017-04-26 | 杭州春江阀门有限公司 | Magnetic suspension exhaust valve |
-
2016
- 2016-12-28 CN CN201621458422.4U patent/CN206329779U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106594345A (en) * | 2016-12-28 | 2017-04-26 | 杭州春江阀门有限公司 | Magnetic suspension exhaust valve |
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