CN202132580U - Magnetic force butterfly valve - Google Patents
Magnetic force butterfly valve Download PDFInfo
- Publication number
- CN202132580U CN202132580U CN201120223552U CN201120223552U CN202132580U CN 202132580 U CN202132580 U CN 202132580U CN 201120223552 U CN201120223552 U CN 201120223552U CN 201120223552 U CN201120223552 U CN 201120223552U CN 202132580 U CN202132580 U CN 202132580U
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- China
- Prior art keywords
- butterfly valve
- sleeve
- valve
- magnetic
- magnetic sleeve
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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.)
- Expired - Fee Related
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Abstract
The utility model aims to provide a magnetic force butterfly valve which adopts a still sealing mode to replace the sealing modes of the conventional butterfly valve, including valve rod filler sealing or O-shaped ring sealing, so as to avoid outleakage. The magnetic force butterfly valve comprises a drive device and a butterfly valve, and is characterized in that an outer magnetic sleeve is arranged on a rotational output piece of the drive device, an inner magnetic sleeve is arranged on the valve rod of the butterfly valve, the inner magnetic sleeve is positioned inside the outer magnetic sleeve, a spacer sleeve is spaced between the inner magnetic sleeve and the outer magnetic sleeve, the inner magnetic sleeve is arranged in the spacer sleeve made of a magnetic flux material, the spacer sleeve is fixed on the valve body of the butterfly valve, and the gap between the spacer sleeve and the valve body is sealed.
Description
Technical field
The utility model relates to a kind of valve, relates in particular to butterfly valve.
Background technique
The general less occasion of pressure reduction not high at working medium pressure, the valve two ends of using of butterfly valve.The butterfly plate half-twist of butterfly valve just can be realized opening or closing, control convenient, flow resistance is little, structure is light and handy, safe and reliable, obtained application widely.
As shown in Figure 1, after working medium pressure improves, leak from the valve rod 100 of butterfly valve in order to prevent working medium, the sealing load of valve rod 100 places stuffing box packing or O type circle 102 improves, and it causes the leakage failure rate to increase substantially for a moment; It two can cause that valve rod 100 is opened, closing torque increases, and causes drive unit 103 moments of torsion (perhaps power), volume significantly to increase; Its three very big pressure medium acts on the valve rod 100, produces very big axial force, be to keep butterfly plate 104 positions, forces this axial force of thrust-bearing balance that should take big load on the structure of butterfly valve.More than three aspects offset the technical advantage that structure is light and handy, control is convenient, safe and reliable of butterfly valve significantly, limited butterfly valve promoting the use of in the high pressure occasion.
In cycle of higher pressure systems such as chemical-process, diving apparatus, more occasion exists the very high but very little situation of the pressure reduction valve two ends of working medium pressure.Common butterfly valve flow resistance is little, the convenient very little condition of pressure reduction that is well suited for the valve two ends of control, but is difficult to competent high pressure.This occasion has to adopt that other is expensive, complex structure, valve that volume is bigger substitute.
The model utility content
The purpose of the utility model is to provide a kind of magnetic force butterfly valve, and it adopts the standstill seal pattern, replaces the common butterfly valve stem packing sealing or the seal style of O type circle, takes place to stop to leak.
For realizing the magnetic force butterfly valve of said purpose, comprise drive unit and butterfly valve, be characterized in; The rotation output member of drive unit is provided with outer magnetic sleeve, and the valve rod of butterfly valve is provided with inner magnetic sleeve, and inner magnetic sleeve is positioned at outer magnetic sleeve; Be separated with separation sleeve between between inner magnetic sleeve and the outer magnetic sleeve, outer magnetic sleeve is positioned at separation sleeve, and separation sleeve is made up of logical magnetic material; Separation sleeve is fixedly installed on the valve body of butterfly valve, and seals between separation sleeve and the valve body.
Described magnetic force butterfly valve, its further characteristics be, said drive unit is manual, pneumatic, hydraulic transmission or electric machine.
Described magnetic force butterfly valve, its further characteristics are that said butterfly valve adopts the structure of not eccentric, two off-centre or three off-centre.
The magneto drive butterfly valve adopts separation sleeve standstill seal pattern, has stopped leakage fully, is " zero leakage " valve.Separation sleeve and butterfly valve body have born the pressure of working medium, and the butterfly plate of butterfly valve only need overcome the pressure reduction (it is less to compare pressure medium) before and after the butterfly valve, and drive unit volume and moment of torsion (perhaps power) are less, and operation is dexterous convenient.Aforementioned magnetic force butterfly valve is in cycle of higher pressure systems such as chemical-process, diving apparatus; The very high but less occasion of the pressure reduction valve two ends of working medium pressure, have do not have leak, volume is little, driving torque (perhaps power) is little, flow resistance is little, control technical advantage easily.
Description of drawings
Fig. 1 is the plan view of existing butterfly valve.
Fig. 2 is the utility model first embodiment's a plan view.
Fig. 3 is the utility model second embodiment's a plan view.
Embodiment
As shown in Figure 2, the magnetic force butterfly valve comprises drive unit 8 and butterfly valve, and butterfly valve comprises valve body 2, valve gap 1, valve seat 3, dish plate 4, valve rod 5, valve lever pin 6, separation sleeve 7, inner magnetic sleeve 10, outer magnetic sleeve 9.
Outer magnetic sleeve 9 is arranged on the rotation output member of drive unit 8, and for example drive unit 8 is a motor, and outer magnetic sleeve 9 is arranged on the motor output shaft.
Inner magnetic sleeve 10 is arranged on the valve rod 5, when outer magnetic sleeve 9 rotates, drives inner magnetic sleeve 10, in 90 degree scopes, rotates the closing or opening of solid line valve thereby make valve rod 5 drive dish plates 4.
Inside and outside magnetosheath 10, at interval separation sleeve 7 is set between 9, separation sleeve 7 is arranged on the valve body 2, and between the valve body 2 through the seal ring sealing.Inner magnetic sleeve 10 is positioned at separation sleeve 7, therefore by separation sleeve 7 inner magnetic sleeve 10 is hedged off from the outer world.
Because between separation sleeve 7 and the valve body 2 is the standstill seal pattern, replace the common butterfly valve stem packing sealing or the seal style of O type circle, stopped leakage fully, be " zero leakage " valve.
That the embodiment of drive unit 8 can be is pneumatic, a kind of and manual compound use in the hydraulic transmission, electric machine.
Each embodiment's butterfly valve can adopt the structure of not eccentric, two off-centre or three off-centre, as shown is two eccentric structures.
Claims (3)
1. the magnetic force butterfly valve comprises drive unit and butterfly valve, it is characterized in that; The rotation output member of drive unit is provided with outer magnetic sleeve, and the valve rod of butterfly valve is provided with inner magnetic sleeve, and inner magnetic sleeve is positioned at outer magnetic sleeve; Be separated with separation sleeve between between inner magnetic sleeve and the outer magnetic sleeve, outer magnetic sleeve is positioned at separation sleeve, and separation sleeve is made up of logical magnetic material; Separation sleeve is fixedly installed on the valve body of butterfly valve, and seals between separation sleeve and the valve body.
2. magnetic force butterfly valve as claimed in claim 1 is characterized in that, said drive unit is manual, pneumatic, hydraulic transmission or electric machine.
3. magnetic force butterfly valve as claimed in claim 1 is characterized in that, said butterfly valve adopts the structure of not eccentric, two off-centre or three off-centre.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120223552U CN202132580U (en) | 2011-06-28 | 2011-06-28 | Magnetic force butterfly valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120223552U CN202132580U (en) | 2011-06-28 | 2011-06-28 | Magnetic force butterfly valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202132580U true CN202132580U (en) | 2012-02-01 |
Family
ID=45521347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120223552U Expired - Fee Related CN202132580U (en) | 2011-06-28 | 2011-06-28 | Magnetic force butterfly valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202132580U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105299256A (en) * | 2015-11-06 | 2016-02-03 | 安徽盛唐泵阀制造有限公司 | Stainless steel magnetic ball valve |
-
2011
- 2011-06-28 CN CN201120223552U patent/CN202132580U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105299256A (en) * | 2015-11-06 | 2016-02-03 | 安徽盛唐泵阀制造有限公司 | Stainless steel magnetic ball valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhao Junliang Document name: Notification that Application Deemed not to be Proposed |
|
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhangjiagang Shazhou Marine Valve Manufacture Co., Ltd. Assignor: Li Jia Contract record no.: 2013320010069 Denomination of utility model: Ceramic hard sealing magnetic butterfly valve Granted publication date: 20120201 License type: Exclusive License Record date: 20130415 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120201 Termination date: 20160628 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |