CN214063824U - Special working condition dynamic seal structure capable of compensating - Google Patents
Special working condition dynamic seal structure capable of compensating Download PDFInfo
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- CN214063824U CN214063824U CN202023192124.4U CN202023192124U CN214063824U CN 214063824 U CN214063824 U CN 214063824U CN 202023192124 U CN202023192124 U CN 202023192124U CN 214063824 U CN214063824 U CN 214063824U
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- valve
- sealing washer
- balance
- fixedly connected
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Abstract
The utility model relates to a valve internals moves seal structure technical field, and discloses a special operating mode that can compensate moves seal structure, comprises a valve seat, the top fixedly connected with valve cage of disk seat, the inside movable mounting of valve cage has the case, the inside movable mounting of case has the valve rod. This special operating mode dynamic seal structure that can compensate, be hard graphite through setting up balanced sealing washer, can bear high temperature high pressure, compare in conventional sealing washer, if balanced sealing washer is lossy consuming time, it is not automatic compensation function, this kind of structure can make balanced sealing washer make the compensation owing to support the outside tension that the energy storage circle produced, guarantee all the time that there is a invariable sealed specific pressure balanced sealing washer and valve cage internal surface, and the guide ring can be isolated with balanced sealing washer to the impurity in the medium, can improve the life of balanced sealing washer, the problem that the dynamic seal life-span of having solved this kind of valve is short, can prolong the life of valve greatly.
Description
Technical Field
The utility model relates to a valve internals moves seal structure technical field, specifically is a special operating mode that can compensate moves seal structure.
Background
The valves are pipe fittings for opening and closing pipes, controlling flow direction, regulating and controlling parameters (temperature, pressure and flow) of a conveying medium, and can be classified into shut-off valves, check valves, regulating valves and the like according to their functions.
The conventional similar valve dynamic sealing piece cloth has no compensation function, the leakage amount is increased along with the lapse of service time, and the sealing effect is not ideal enough, so that a compensable special working condition dynamic sealing structure is provided to solve the problem.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The not enough to prior art, the utility model provides a special operating mode dynamic seal structure that can compensate possesses advantages such as sealed effectual, has solved current valve dynamic seal spare cloth of the same kind and has not had the compensation function, along with the increase of leakage quantity is let out in the live time, the not ideal problem of sealed effect inadequately.
(II) technical scheme
For realizing the above-mentioned sealed effectual purpose, the utility model provides a following technical scheme: the utility model provides a special operating mode dynamic seal structure that can compensate, includes the disk seat, the top fixedly connected with valve cage of disk seat, the inside movable mounting of valve cage has the case, the inside movable mounting of case has the valve rod, the inside movable mounting of valve rod has the round pin post, the internal perisporium fixedly connected with guide ring of valve cage, the bottom fixedly connected with metal winding pad of disk seat, the balanced sealing washer of internal perisporium fixedly connected with of valve cage, the outside fixedly connected with of case and the support energy storage circle of balanced sealing washer laminating.
Preferably, the balance sealing ring is made of hard graphite.
Preferably, the number of the guide rings is two, and the two guide rings have the same size.
Preferably, two guide rings are respectively positioned above and below the balance sealing ring.
Preferably, the number of the balance sealing rings is two and the balance sealing rings are mutually attached.
Preferably, a positioning through hole is formed in the valve core, and the size of the positioning through hole is matched with that of the pin.
(III) advantageous effects
Compared with the prior art, the utility model provides a special operating mode dynamic seal structure that can compensate possesses following beneficial effect:
the compensable special working condition dynamic sealing structure is characterized in that a valve core is arranged, when the valve core moves up and down to adjust the medium flow, a balance sealing ring can play a sealing role, a support energy storage ring has constant outward tension on the balance sealing ring to enable the balance sealing ring and the inner surface of a valve cage to have constant sealing specific pressure, if the balance sealing ring is damaged, the balance sealing ring compensates due to the outward tension generated by the support energy storage ring, the constant sealing specific pressure is always ensured to exist between the balance sealing ring and the inner surface of the valve cage, the balance sealing ring can bear high temperature and high pressure by arranging the balance sealing ring to be hard graphite, compared with a conventional sealing ring, if the balance sealing ring is damaged and consumes time, the balance sealing ring has no automatic compensation function, the structure can enable the balance sealing ring to compensate due to the outward tension generated by the support energy storage ring, and always ensure that the constant sealing specific pressure exists between the balance sealing ring and the inner surface of the valve cage, and the guide ring can isolate impurities in the medium from the balance sealing ring, so that the service life of the balance sealing ring can be prolonged, the problem of short service life of the dynamic seal of the valve is solved, and the service life of the valve can be greatly prolonged.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is an enlarged schematic view of a portion a of fig. 1 according to the present invention.
In the figure: the valve comprises a metal winding pad 1, a valve seat 2, a valve cage 3, a valve core 4, a valve rod 5, a pin column 6, a guide ring 7, a support energy storage ring 8 and a balance sealing ring 9.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Please refer to fig. 1-2, a compensable dynamic seal structure for special working conditions, which comprises a valve seat 2, a valve cage 3 fixedly connected to the top of the valve seat 2, a valve core 4 movably mounted inside the valve cage 3, a valve rod 5 movably mounted inside the valve core 4, a pin 6 movably mounted inside the valve rod 5, a positioning through hole formed inside the valve core 4, the size of the positioning through hole is matched with the size of the pin 6, a guide ring 7 fixedly connected to the inner peripheral wall of the valve cage 3, the number of the guide rings 7 is two, and the size of the two guide rings 7 is the same, the two guide rings 7 are respectively located above and below the balance seal ring 9, a metal winding pad 1 is fixedly connected to the bottom of the valve seat 2, a balance seal ring 9 is fixedly connected to the inner peripheral wall of the valve cage 3, the balance seal ring 9 is made of hard graphite, the number of the balance seal rings 9 is two and are mutually attached, and a support energy storage ring 8 attached to the balance seal ring 9 is fixedly connected to the outer side of the valve core 4.
In conclusion, the compensable dynamic sealing structure under special working conditions has the advantages that by arranging the valve core 4, when the valve core 4 moves up and down to adjust the medium flow, the balance sealing ring 9 can play a sealing role, the support energy storage ring 8 has constant outward tension on the balance sealing ring 9 to enable the balance sealing ring 9 and the inner surface of the valve cage 3 to have constant sealing specific pressure, if the balance sealing ring 9 is damaged, the balance sealing ring 9 compensates due to the outward tension generated by the support energy storage ring 8, the constant sealing specific pressure between the balance sealing ring 9 and the inner surface of the valve cage 3 is always ensured, the balance sealing ring 9 is made of hard graphite, can bear high temperature and high pressure, compared with a conventional sealing ring, when the balance sealing ring 9 is damaged, the structure has no automatic compensation function, the balance sealing ring 9 can compensate due to the outward tension generated by the support energy storage ring 8, guarantee all the time that there is a invariable sealed specific pressure in balanced sealing washer 9 and the 3 internal surfaces of valve cage, and guide ring 7 can be isolated with balanced sealing washer 9 to the impurity in the medium, can improve balanced sealing washer 9's life, the problem that the dynamic seal life-span of having solved this type of valve is short, can prolong the life of valve greatly, it does not have the compensation function to have solved current similar valve dynamic seal spare cloth, along with the increase of leakage amount of live time lapse, the problem of sealed effect ideal inadequately.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a special operating mode dynamic seal structure that can compensate, includes disk seat (2), its characterized in that: the top fixedly connected with valve cage (3) of disk seat (2), the inside movable mounting of valve cage (3) has case (4), the inside movable mounting of case (4) has valve rod (5), the inside movable mounting of valve rod (5) has round pin post (6), the internal perisporium fixedly connected with guide ring (7) of valve cage (3), the bottom fixedly connected with metal winding pad (1) of disk seat (2), the internal perisporium fixedly connected with balance seal circle (9) of valve cage (3), the outside fixedly connected with of case (4) and the support energy storage circle (8) of balance seal circle (9) laminating.
2. A compensable special working condition dynamic sealing structure according to claim 1, characterized in that: the balance sealing ring (9) is made of hard graphite.
3. A compensable special working condition dynamic sealing structure according to claim 1, characterized in that: the number of the guide rings (7) is two, and the two guide rings (7) are the same in size.
4. A compensable special working condition dynamic sealing structure according to claim 1, characterized in that: the two guide rings (7) are respectively positioned above and below the balance sealing ring (9).
5. A compensable special working condition dynamic sealing structure according to claim 1, characterized in that: the number of the balance sealing rings (9) is two and the balance sealing rings are mutually attached.
6. A compensable special working condition dynamic sealing structure according to claim 1, characterized in that: and a positioning through hole is formed in the valve core (4), and the size of the positioning through hole is matched with that of the pin column (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023192124.4U CN214063824U (en) | 2020-12-27 | 2020-12-27 | Special working condition dynamic seal structure capable of compensating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023192124.4U CN214063824U (en) | 2020-12-27 | 2020-12-27 | Special working condition dynamic seal structure capable of compensating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214063824U true CN214063824U (en) | 2021-08-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023192124.4U Active CN214063824U (en) | 2020-12-27 | 2020-12-27 | Special working condition dynamic seal structure capable of compensating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214063824U (en) |
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2020
- 2020-12-27 CN CN202023192124.4U patent/CN214063824U/en active Active
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