CN210343435U - Gland ring for steam turbine - Google Patents
Gland ring for steam turbine Download PDFInfo
- Publication number
- CN210343435U CN210343435U CN201921322172.5U CN201921322172U CN210343435U CN 210343435 U CN210343435 U CN 210343435U CN 201921322172 U CN201921322172 U CN 201921322172U CN 210343435 U CN210343435 U CN 210343435U
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- ring
- side wall
- mounting groove
- steam
- steam turbine
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Abstract
The utility model discloses a steam seal ring for a steam turbine, which relates to the relevant field of steam turbines and comprises a lantern ring, wherein the inner side wall of the lantern ring is provided with a first mounting groove, the inner side wall of the first mounting groove is provided with a first groove, the lantern ring is internally provided with a steam seal sheet, the inner side wall of the steam seal sheet is provided with a second mounting groove, the inner side wall of the second mounting groove is fixedly provided with a first spring, one end of the first spring is fixedly provided with a lug, the connecting area of the steam seal sheet and the lantern ring is internally provided with a first mounting hole, the inner side wall of the first mounting hole is provided with an internal thread, a fixing bolt is arranged in the first mounting hole in a penetrating way, the outer side wall of the fixing bolt is provided with an external thread, the outer side wall of the lantern ring is provided with a third mounting groove, convenient to use, the function is various, has good development prospect.
Description
Technical Field
The utility model relates to a steam turbine field of relevance, in particular to gland sealing ring for steam turbine.
Background
The steam turbine is divided into an impulse steam turbine and a reaction steam turbine according to the working principle, the steam turbine is a rotating machine which takes steam as power and converts the heat energy of the steam into mechanical work, and the steam turbine is the most widely applied prime motor in the modern thermal power plant. The steam turbine has the advantages of large single machine power, high efficiency, long service life and the like, the steam of the impulse steam turbine mainly expands in the static blades and only slightly expands in the movable blades, and the steam of the reaction steam turbine expands in the static blades and the movable blades and has the same expansion degree. Steam turbines are used primarily as prime movers for power generation, and can also directly drive various pumps, fans, compressors, marine propellers, and the like. The exhaust steam or intermediate extraction steam of the steam turbine can be used for meeting the heat supply requirements in production and life. In the whole turbine, steam flows along a certain channel, and the flow guiding effect of the channel determines the power of the whole turbine.
However, its model of current for steam turbine steam seal ring all is fixed, can not change its inside size between the steam seal piece according to user's demand, thereby it has the different steam seal ring of many models to have inside the steam turbine, great increase user's the maintenance degree of difficulty more, and producer's the production degree of difficulty, and simultaneously, the solid fixed ring on the steam seal ring for current steam turbine all is direct fixed mounting on the lantern ring, thereby it does not have safeguard measure and does not cause the accident comparatively easily when solid fixed ring drops from the lantern ring.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a steam seal ring for steam turbine, in order to solve and to provide in the above-mentioned background art and can not change its inside size between the steam seal piece according to user's demand, thereby steam turbine inside has the different steam seal ring of many models completely, great increase user's the maintenance degree of difficulty, and producer's the production degree of difficulty, and simultaneously, fixed ring on the steam seal ring for current steam turbine all is direct fixed mounting on the lantern ring, thereby do not have the safeguard measure and do not cause the problem of accident comparatively easily when fixed ring comes off from the lantern ring.
In order to achieve the above object, the utility model provides a following technical scheme: a steam seal ring for a steam turbine comprises a lantern ring, wherein a first mounting groove is formed in the inner side wall of the lantern ring, a first groove is formed in the inner side wall of the first mounting groove, a steam seal sheet is arranged in the lantern ring, a second mounting groove is formed in the inner side wall of the steam seal sheet, a first spring is fixedly mounted on the inner side wall of the second mounting groove, a convex block is fixedly mounted at one end of the first spring, a first mounting hole is formed in the connecting area of the steam seal sheet and the lantern ring, an internal thread is formed in the inner side wall of the first mounting hole, a fixing bolt penetrates through the first mounting hole, an external thread is formed in the outer side wall of the fixing bolt, a third mounting groove is formed in the outer side wall of the lantern ring, a connecting block is fixedly mounted on the inner side wall of the third mounting groove, fixed mounting has the shock pad on the inside wall of mounting groove four, gu fixed ring passes through four fixed mounting in of mounting groove are in the one end of connecting block, gu be provided with mounting groove five on the fixed ring, fixed mounting has spring two on the inside wall of mounting groove five, the one end fixed mounting of spring two has the fixed plate, be provided with recess two on the lateral wall of the lantern ring, be provided with the air channel on the gland piece.
Preferably, the shape of the gland sealing sheet is semicircular.
Preferably, the size of the bump is matched with that of the first groove.
Preferably, the fixing bolt is installed in the first installation hole through the mutual matching of the internal thread and the external thread.
Preferably, the shock pad is a rubber shock pad.
Preferably, one end of the fixing plate is arranged in the second groove in a penetrating mode, and the size of the second groove is matched with that of the fixing plate.
Preferably, the fixed plate is fixedly provided with a pull block.
The utility model discloses a technological effect and advantage:
1. when a user needs to replace the steam sealing sheet, the user can firstly operate the fixing bolt and unscrew the fixing bolt from the first mounting hole through the mutual matching of the internal thread and the external thread, so that the fixing of the steam sealing sheet can be released, and then the user can change the density of the arrangement of the steam sealing sheets in the lantern ring according to the self using requirement, so that the usability of the utility model in the steam turbine can be greatly increased, and the utility model can be installed in the steam turbines of different models;
2. when the connecting block takes place to separate with the lantern ring, the fixed plate can play certain fixed action, and then can prevent the condition that the connecting block from coming off from appearing, and the user's accessible draws the piece and stimulates the fixed plate and then can pull out the fixed plate from recess two, changes it.
Drawings
Fig. 1 is a schematic view of the structure of the present invention.
Fig. 2 is a cross-sectional view of the present invention.
Fig. 3 is a connection diagram of the fixing plate and the pulling block of the present invention.
Fig. 4 is a cross-sectional view of the fixing ring of the present invention.
Fig. 5 is a schematic structural view of the arc-shaped block of the present invention.
In the figure: 1. a collar; 2. a steam sealing sheet; 3. a first spring; 4. a bump; 5. fixing the bolt; 6. connecting blocks; 7. a fixing ring; 8. a shock pad; 9. a second spring; 10. a fixing plate; 11. a vent channel; 12. and (5) pulling the block.
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.
The utility model provides a steam seal ring for a steam turbine as shown in figures 1-4, which comprises a lantern ring 1, the outer side wall of the lantern ring 1 is provided with a third mounting groove, the inner side wall of the third mounting groove is fixedly provided with a connecting block 6, the lantern ring 1 is provided with a fixing ring 7, the inner side wall of the fixing ring 7 is provided with a fourth mounting groove, the inner side wall of the fourth mounting groove is fixedly provided with a shock pad 8, the fixing ring 7 is fixedly arranged at one end of the connecting block 6 through the fourth mounting groove, the fixing ring 7 is provided with a fifth mounting groove, the inner side wall of the fifth mounting groove is fixedly provided with a second spring 9, one end of the second spring 9 is fixedly provided with a fixing plate 10, the outer side wall of the lantern ring 1 is provided with a second groove, the steam seal piece 2 is provided with a vent groove 11, the one end of fixed plate 10 is worn to establish in recess two, the size of recess two and the size phase-match of fixed plate 10, fixed mounting has on the fixed plate 10 and draws piece 12, the user can fix gland casing 2 through fixing bolt 5 once more, because fixed plate 10 sets up in the recess, thereby when connecting block 6 takes place to separate with the lantern ring 1, fixed plate 10 can play certain fixed action, the user's accessible draws piece 12 and draws fixed plate 10 and then can draw fixed plate 10 from recess two, change it.
As can be seen from the combination of the drawings 2 and 5, a first mounting groove is arranged on the inner side wall of the lantern ring 1, a first groove is arranged on the inner side wall of the first mounting groove, a gland sealing sheet 2 is arranged in the lantern ring 1, a second mounting groove is arranged on the inner side wall of the gland sealing sheet 2, a first spring 3 is fixedly mounted on the inner side wall of the second mounting groove, a first lug 4 is fixedly mounted at one end of the first spring 3, a first mounting hole is formed in the connecting area of the gland sealing sheet 2 and the lantern ring 1, an internal thread is arranged on the inner side wall of the first mounting hole, a fixing bolt 5 is arranged in the first mounting hole in a penetrating manner, an external thread is arranged on the outer side wall of the fixing bolt 5, the gland sealing sheet 2 is semicircular, the size of the lug 4 is matched with that of the first groove, a user can firstly operate whether each component of the, thereby when the user need change gland casing 2, the user can operate fixing bolt 5 earlier, twist out from mounting hole one through mutually supporting of internal thread and external screw thread with fixing bolt 5 to can remove the fixed to 2 pieces of atmoseal, then the user can change according to the user demand of self the density that gland casing 2 was arranged in the lantern ring 1, and then the increase that can be great this utility model is the usability in the steam turbine, can make this utility model install in the steam turbine of different models.
This practical theory of operation: when in use, a user can firstly operate whether each part of the utility model is perfect, because the gland sealing sheet 2 is arranged in the lantern ring 1 through the mutual matching of the fixing bolt 5 and the mounting hole I, when the user needs to replace the gland sealing sheet 2, the user can firstly operate the fixing bolt 5 to screw the fixing bolt 5 out of the mounting hole I through the mutual matching of the internal thread and the external thread, thereby the fixing of the gland sealing sheet 2 can be released, then the user can change the density of the arrangement of the gland sealing sheets 2 in the lantern ring 1 according to the self use requirement, thereby the usability of the utility model in the turbine can be greatly increased, the utility model can be arranged in the turbines of different models, then the user can fix the gland sealing sheet 2 through the fixing bolt 5 again, because the fixing plate 10 is arranged in the groove, when the connecting block 6 is separated from the lantern ring 1, the fixing plate 10 can play a certain fixing role, and a user can pull the fixing plate 10 through the pulling block 12 so as to pull out the fixing plate 10 from the second groove and replace the fixing plate 10.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (7)
1. The utility model provides a gland sealing ring for steam turbine, includes lantern ring (1), its characterized in that: the steam sealing device is characterized in that a first mounting groove is formed in the inner side wall of the lantern ring (1), a first groove is formed in the inner side wall of the first mounting groove, a steam sealing sheet (2) is arranged in the lantern ring (1), a second mounting groove is formed in the inner side wall of the steam sealing sheet (2), a first spring (3) is fixedly mounted on the inner side wall of the second mounting groove, a lug (4) is fixedly mounted at one end of the first spring (3), a first mounting hole is formed in the connecting area of the steam sealing sheet (2) and the lantern ring (1), an internal thread is formed in the inner side wall of the first mounting hole, a fixing bolt (5) is arranged in the first mounting hole in a penetrating mode, an external thread is formed in the outer side wall of the fixing bolt (5), a third mounting groove is formed in the outer side wall of the lantern ring (1), a connecting block (6) is fixedly, be provided with mounting groove four on the inside wall of solid fixed ring (7), fixed mounting has shock pad (8) on the inside wall of mounting groove four, gu fixed ring (7) pass through four fixed mounting in mounting groove are in the one end of connecting block (6), gu be provided with mounting groove five on fixed ring (7), fixed mounting has spring two (9) on the inside wall of mounting groove five, the one end fixed mounting of spring two (9) has fixed plate (10), be provided with recess two on the lateral wall of the lantern ring (1), be provided with air vent (11) on gland packing piece (2).
2. The gland ring for a steam turbine according to claim 1, wherein: the shape of the gland sealing sheet (2) is semicircular.
3. The gland ring for a steam turbine according to claim 1, wherein: the size of the bump (4) is matched with that of the first groove.
4. The gland ring for a steam turbine according to claim 1, wherein: and the fixing bolt (5) is arranged in the first mounting hole through the mutual matching of the internal thread and the external thread.
5. The gland ring for a steam turbine according to claim 1, wherein: the shock pad (8) is a rubber shock pad.
6. The gland ring for a steam turbine according to claim 1, wherein: one end of the fixing plate (10) penetrates through the second groove, and the size of the second groove is matched with that of the fixing plate (10).
7. The gland ring for a steam turbine according to claim 1, wherein: and a pulling block (12) is fixedly arranged on the fixing plate (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921322172.5U CN210343435U (en) | 2019-08-15 | 2019-08-15 | Gland ring for steam turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921322172.5U CN210343435U (en) | 2019-08-15 | 2019-08-15 | Gland ring for steam turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210343435U true CN210343435U (en) | 2020-04-17 |
Family
ID=70175002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921322172.5U Active CN210343435U (en) | 2019-08-15 | 2019-08-15 | Gland ring for steam turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210343435U (en) |
-
2019
- 2019-08-15 CN CN201921322172.5U patent/CN210343435U/en active Active
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