CN102261476A - Flexible seal system - Google Patents
Flexible seal system Download PDFInfo
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- CN102261476A CN102261476A CN2011101477917A CN201110147791A CN102261476A CN 102261476 A CN102261476 A CN 102261476A CN 2011101477917 A CN2011101477917 A CN 2011101477917A CN 201110147791 A CN201110147791 A CN 201110147791A CN 102261476 A CN102261476 A CN 102261476A
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Abstract
The invention discloses a flexible seal system which consists of a parametric collection or linkage device, a seal structure regulating device or an additional force device; the parametric collection or linkage device is provided with a sensor internally; the seal structure regulating device is internally provided with a spring (5) which is connected to a spring seat (5); the spring seat (4) is connected with a transmission seat (1) through a displacement device (3); and the additional force device is internally provided with a magnetic field. The flexible seal system has the beneficial effects that the seal performance and service life can be regulated dynamically, the seal reliability is increased, the service life is prolonged, and the leakage accident can be avoided.
Description
Technical field
The present invention relates to a kind of novel seal system, particularly a kind of have the internal structure parameter is regulated automatically and field working conditions is carried out self-reacting flexible sealing system.
Background technique
The structure of existing sealing system in use all remains unchanged, and it can be defined as the rigid seal system.The solid friction seal arrangement in the rigid seal system for example, when design according to applying working condition to its main structure parameters, for example structural parameter such as the end face width of friction pair, effective and nominal area of contact, spring are selected, and determine the main use of solid friction seal arrangement and performance parameter for example loading coefficient, face pressure etc. thus.
The rigid seal system in use is easy to generate following point: at first, may there be difference in the applying working condition that is adopted during design with on-the-spot actual applying working condition.When both operating mode value differences were not big, because structural parameter immobilize, main use and performance parameter caused seal life to shorten the off-design requirement easily, even seal failure.Secondly, in use owing to the fretting wear (for example graphite annulus in use highly becomes the short spring force variation that causes) of friction pair, the change of the physical property of auxiliary sealing device (for example the firmness change of O type circle causes the auxiliary seal ring change in friction force) all will cause the requirement of Specifeca tion speeification off-design to the solid friction seal arrangement.At last, when producing than great fluctuation process at short notice, also will cause main use and the requirement of performance parameter off-design owing to on-the-spot applying working condition.
Also there is similar problem in non-solid friction sealed device in the rigid seal system.When design noncontact seal device, for example end face width, trench structure, spring pressure etc. design to the main structure parameters of seal arrangement according to applying working condition, but the deviation of applying working condition and design conditions in the actual using process, the sudden changes of applying working condition etc. all cause actual performance parameters such as air-film thickness, leakage rate, air consumption can't satisfy usage requirement easily.Because the situation that various other reasonses cause main use and performance parameter off-design to require also has a lot, and the characteristics of rigid seal system at present certainly will cause the situation of sealability variation, the lost of life even the seal failure of seal arrangement in addition.
Summary of the invention
At the defective of existing sealing system, the invention provides a kind of have the internal structure parameter is regulated automatically and field working conditions is carried out self-reacting flexible sealing system.
To achieve these goals, the measure that the present invention taked is:
The flexible sealing system, form by the collection of parameter or continuous action device and sealing configuration regulating device or additional force device, be provided with sensor in the collection of parameter or the continuous action device, be provided with the spring that is connected on the spring seat in the sealing configuration regulating device, spring seat links to each other with retainer by Displacement system, is provided with magnetic field in the additional force device;
Described magnetic field is formed by being connected energization solenoid or the magnet that metal seat on the stationary ring and metal seat inside has iron core;
The material of described iron core is soft iron or steel;
The material of described magnet is the material that Martensite Steel, alnico magnetic material, ferrite magnetic material, Rare-Earth Cobalt magnetic material maybe can be magnetized;
Being shaped as of described iron core is ungulate, is wound with the coil of opposite rotation direction on the iron core.
Beneficial effect of the present invention: at first, the defective of avoiding the rigid seal system structure parameter to change, when applying working condition departs from mutually with design conditions, by adjusting structural parameter or, making performance and applying working condition keep best by in device, increasing extra additional force; Secondly, this parameter to mutual restriction can in use dynamically be adjusted according to field requirement sealability and working life in the flexible sealing system; At last; for non-solid friction sealed device; at unseal, operation, shutdown stage because the difference of device rotational speed; cause opening force and sealing film thickness and the actual optimum condition that requires difference to some extent easily; flexiblesystem will make sealing system all keep best in the different phase operation parameter of operation by adjusting structural parameter; reach the increase sealing reliability, increase the service life, avoid taking place leakage accident etc.
Description of drawings
Fig. 1, the structural representation of the present invention in the solid friction seal arrangement.
Fig. 2, the structural representation of the present invention in non-solid friction sealed device.
Number in the figure is represented: 1, retainer; 2, pressure transducer; 3, Displacement system; 4, spring seat; 5, spring; 6 rotating rings; 7 temperature transducers; 8, air-film thickness sensor; 9, stationary ring; 10, metal seat; 11, energising helical; 12, flow transducer; 13, speed probe.
Embodiment
The flexible sealing system, form by the collection of parameter or continuous action device and sealing configuration regulating device or additional force device, be provided with sensor in the collection of parameter or the continuous action device, be provided with the spring 5 that is connected on the spring seat 4 in the sealing configuration regulating device, spring seat 4 links to each other with retainer 1 by Displacement system 3, is provided with magnetic field in the additional force device; Described magnetic field is formed by being connected energization solenoid 11 or the magnet that metal seat 10 on the stationary ring 9 and metal seat 10 inside have iron core; The material of described iron core is soft iron or steel; The material of described magnet is the material that Martensite Steel, alnico magnetic material, ferrite magnetic material, Rare-Earth Cobalt magnetic material maybe can be magnetized; Being shaped as of described iron core is ungulate, is wound with the coil of opposite rotation direction on the iron core.
Example one: retainer 1 nested inside of solid friction seal arrangement can be along the axially movable Displacement system 3 of transmission, Displacement system 3 links to each other with pressure transducer 2, when the actual motion pressure and the setting pressure of equipment has when departing from, Displacement system 3 is converted to vertically displacement amount with pressure divergence, adjust the decrement of spring 5 by spring seat 4 is linked to each other with Displacement system 3, reach the order ground of adjusting applying working condition.
Example two: arrange temperature transducer 7 on the rotating ring 6 of solid friction seal arrangement, when temperature of friction pair end face surpasses setting value, axial displacement device 3 will make spring seat along axis shift, adjust the decrement of spring 5, improve the usability of seal arrangement.
Example three: arrange air-film thickness sensor 8 on the stationary ring 9 of non-solid friction sealed device, stationary ring is nested in the metal seat that can be magnetized 10, twines energising helical 11 around metal seat.Load magnet or can be in magnetic field stressed device in the retainer 1.Electric current power and direction in the solenoid are adjusted by the signal that the air-film thickness sensor is obtained, and obtain strong and weak and all controllable magnetic field of direction.When the air-film thickness of friction pair and setting value to some extent during deviation, stationary ring will be subjected to extra additional magnetic force in magnetic field, thereby will reach the adjustment air-film thickness, improve the order ground of usability.
Example four: on the rotary component of non-solid friction sealed device such as retainer 1, arrange speed probe 13.In the different phase of operation, obtain the complementary field power that reality is used to be needed by twining energising helical 11 electric currents around the adjustment metal seat 10.For example when the rotating speed of the entry into service that seals hangs down, make stationary ring 9 obtain extra additional opening force, the seal face of friction pair still can be opened when making low-speed running, reduces end wear.
Example five: the torch place of igniting at non-solid friction sealed device arranges flow transducer 12, when leakage rate departs from setting value, make stationary ring obtain extra opening force or closing force by adjusting solenoid 11 size of current, reach the order ground of adjusting air-film thickness control leakage rate.
Above-mentioned various collection or continuous action device and regulating device can make up, add complementary field power as in the solid friction device, adopting, or in non-solid rubbing device, adopt the displacement regulating device to adjust spring force, or the cancellation spring assembly directly adopts magnetic force as opening and closing force, or adopt and gather other different telltales or the like, all can obtain the different structure and the application of other various variations of the present invention.
Beneficial effect of the present invention: at first, the defective of avoiding the rigid seal system structure parameter to change, when applying working condition departs from mutually with design conditions, by adjusting structural parameter or, making performance and applying working condition keep best by in device, increasing extra additional force; Secondly, this parameter to mutual restriction can in use dynamically be adjusted according to field requirement sealability and working life in the flexible sealing system; At last; for non-solid friction sealed device; at unseal, operation, shutdown stage because the difference of device rotational speed; cause opening force and sealing film thickness and the actual optimum condition that requires difference to some extent easily; flexiblesystem will make sealing system all keep best in the different phase operation parameter of operation by adjusting structural parameter; reach the increase sealing reliability, increase the service life, avoid taking place leakage accident etc.
Those skilled in the art's simple change and replacement all are within protection scope of the present invention in related domain.
Claims (5)
1. flexible sealing system, it is characterized in that: the flexible sealing system is made up of the collection of parameter or continuous action device and sealing configuration regulating device or additional force device, be provided with sensor in the collection of parameter or the continuous action device, be provided with the spring (5) that is connected on the spring seat (4) in the sealing configuration regulating device, spring seat (4) links to each other with retainer (1) by Displacement system (3), is provided with magnetic field in the additional force device.
2. flexible sealing according to claim 1 system is characterized in that: described magnetic field is formed by being connected energization solenoid (11) or the magnet that metal seat (10) on the stationary ring (9) and metal seat (10) inside has iron core.
3. flexible sealing according to claim 1 and 2 system, it is characterized in that: the material of described iron core is soft iron or steel.
4. flexible sealing according to claim 1 and 2 system is characterized in that: the material of described magnet is the material that Martensite Steel, alnico magnetic material, ferrite magnetic material, Rare-Earth Cobalt magnetic material maybe can be magnetized.
5. flexible sealing according to claim 3 system, it is characterized in that: being shaped as of described iron core is ungulate, is wound with the coil of opposite rotation direction on the iron core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101477917A CN102261476A (en) | 2011-06-02 | 2011-06-02 | Flexible seal system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101477917A CN102261476A (en) | 2011-06-02 | 2011-06-02 | Flexible seal system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102261476A true CN102261476A (en) | 2011-11-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101477917A Pending CN102261476A (en) | 2011-06-02 | 2011-06-02 | Flexible seal system |
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| CN (1) | CN102261476A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103486276A (en) * | 2013-09-17 | 2014-01-01 | 宁波市镇海声光密封件厂(普通合伙) | Mechanical seal |
| CN103759018A (en) * | 2014-01-17 | 2014-04-30 | 北京交通大学 | Magnetic liquid sealing device for sealing liquid |
| CN104279331A (en) * | 2014-03-12 | 2015-01-14 | 赵忠波 | Oil seal mechanism |
| CN106402395A (en) * | 2016-06-28 | 2017-02-15 | 四川大学 | Dry gas seal structure suitable for vibration detection |
| CN111981131A (en) * | 2019-09-25 | 2020-11-24 | 汤新红 | Anti-leakage mechanical seal with automatic stop protection |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86106923A (en) * | 1985-10-21 | 1987-06-03 | 博格-华纳工业产品公司 | Controllable mechanical sealing |
| CN86106617A (en) * | 1985-10-21 | 1987-06-10 | 博格-华纳工业制品公司 | The adaptive control system of mechanical seal device |
| CN2161778Y (en) * | 1993-04-01 | 1994-04-13 | 昆山市釜用机械密封件厂 | Adjustable machinery sealing device |
| CN101260941A (en) * | 2006-11-03 | 2008-09-10 | 通用电气公司 | Mechanical sealing system and method for rotary machines |
-
2011
- 2011-06-02 CN CN2011101477917A patent/CN102261476A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86106923A (en) * | 1985-10-21 | 1987-06-03 | 博格-华纳工业产品公司 | Controllable mechanical sealing |
| CN86106617A (en) * | 1985-10-21 | 1987-06-10 | 博格-华纳工业制品公司 | The adaptive control system of mechanical seal device |
| CN2161778Y (en) * | 1993-04-01 | 1994-04-13 | 昆山市釜用机械密封件厂 | Adjustable machinery sealing device |
| CN101260941A (en) * | 2006-11-03 | 2008-09-10 | 通用电气公司 | Mechanical sealing system and method for rotary machines |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103486276A (en) * | 2013-09-17 | 2014-01-01 | 宁波市镇海声光密封件厂(普通合伙) | Mechanical seal |
| CN103486276B (en) * | 2013-09-17 | 2016-04-27 | 宁波市镇海声光密封件厂(普通合伙) | A kind of mechanical sealing element |
| CN103759018A (en) * | 2014-01-17 | 2014-04-30 | 北京交通大学 | Magnetic liquid sealing device for sealing liquid |
| CN103759018B (en) * | 2014-01-17 | 2016-01-20 | 北京交通大学 | A kind of magnetic fluid seal device for seal fluid |
| CN104279331A (en) * | 2014-03-12 | 2015-01-14 | 赵忠波 | Oil seal mechanism |
| CN106402395A (en) * | 2016-06-28 | 2017-02-15 | 四川大学 | Dry gas seal structure suitable for vibration detection |
| CN111981131A (en) * | 2019-09-25 | 2020-11-24 | 汤新红 | Anti-leakage mechanical seal with automatic stop protection |
| CN111981131B (en) * | 2019-09-25 | 2022-03-22 | 大庆市佰硕浩石油机械制造有限公司 | Anti-leakage mechanical seal with automatic stop protection |
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Application publication date: 20111130 |