CN218913757U - Vibration-proof pre-opening valve device of steam turbine regulating valve - Google Patents
Vibration-proof pre-opening valve device of steam turbine regulating valve Download PDFInfo
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- CN218913757U CN218913757U CN202320097740.6U CN202320097740U CN218913757U CN 218913757 U CN218913757 U CN 218913757U CN 202320097740 U CN202320097740 U CN 202320097740U CN 218913757 U CN218913757 U CN 218913757U
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Abstract
The utility model discloses a vibration-proof pre-opening valve device of a steam turbine regulating valve, which comprises a main valve body, wherein an auxiliary valve body is fixed at the central position of the bottom end of the main valve body, the top end of the auxiliary valve body is communicated with the bottom end of the main valve body, an air inlet is formed in the outer wall of one side of the connecting position of the main valve body and the auxiliary valve body, one end of the air inlet extends to the inside of the main valve body, an air outlet is formed in one end of the auxiliary valve body, which is far away from the main valve body, a positioning seat is formed in the outer wall, which is close to one end of the auxiliary valve body, of the air outlet, a pre-opening valve core is movably connected to one end of the inside of the auxiliary valve body, a threaded cylinder is arranged at the central position of the top end of the main valve body, a threaded main valve rod is connected to internal threads of the threaded cylinder, and the top end of the threaded main valve rod extends to the outside of the threaded cylinder and is provided with a connector. The utility model not only reduces the phenomenon of vibration generated when the threaded main valve rod and the auxiliary valve rod are lifted, but also achieves the aim of positioning and arranging the pre-opening valve, and improves the tightness when the pre-opening valve is used.
Description
Technical Field
The utility model relates to the technical field of turbine regulating valves, in particular to a vibration-proof pre-opening valve device of a turbine regulating valve.
Background
The prior pre-opening valve can better control steam to circulate, is mainly provided with a valve body, a valve rod, a pre-opening valve core and other parts, particularly, the valve core is arranged at the bottom end of the valve rod and is arranged in the valve body, when the valve rod moves upwards, a cavity in the valve body is in an open circulation state so as to facilitate the circulation treatment of the steam, if the valve rod moves downwards, the cavity in the valve body is in a closed state so as to prevent the circulation of the steam, and according to the prior pre-opening valve, although the pre-opening valve can control the circulation of the steam, the valve rod is generally inconvenient to limit the valve rod, so that the valve rod is very easy to vibrate, and people are bothered frequently.
Disclosure of Invention
The utility model aims to provide a vibration-proof pre-opening valve device of a steam turbine regulating valve, which solves the problems that the pre-opening valve can control steam to circulate in the prior art, but is generally inconvenient to limit a valve rod, so that the valve rod is easy to vibrate.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a valve device is in advance opened in antivibration of steam turbine governing valve, includes the main valve body, the central point department of main valve body bottom is fixed with the valve body of assisting, the top of assisting the valve body is linked together with the bottom of main valve body, be equipped with the air inlet on the outer wall of one side of main valve body and valve body hookup location department, the one end that the main valve body was kept away from to the valve body of assisting is equipped with the gas outlet, be equipped with the positioning seat on the outer wall that the gas outlet was close to valve body one end of assisting, the one end swing joint of assisting the valve body inside has the valve core of opening in advance, the central point department at main valve body top is equipped with the screw mandrel, the bottom of screw mandrel extends to the inside of main valve body, the inside threaded connection of screw mandrel has the screw mandrel, the top of screw mandrel extends to the outside of screw mandrel and is equipped with the connector, the bottom of screw mandrel extends to the inside of main valve body and is equipped with the valve mandrel, the bottom of assisting the valve mandrel extends to the inside of assisting the valve body and is connected with the top of opening in advance valve core.
Preferably, the corner positions at the top of the positioning seat are all provided with positioning holes, and the bottom ends of the positioning holes extend to the outside of the positioning seat so as to achieve the purpose of positioning and arranging the pre-opening valve.
Preferably, an upper sealing ring is arranged at the edge position of the top end of the pre-opening valve core, and the outer wall of the upper sealing ring is contacted with the inner wall of the auxiliary valve body so as to seal the connection position of the upper end of the pre-opening valve core and the inner wall of the auxiliary valve body.
Preferably, a lower sealing ring is arranged at the edge position of the bottom end of the pre-opening valve core, and the outer wall of the lower sealing ring is contacted with the inner wall of the auxiliary valve body so as to seal the connection position of the lower end of the pre-opening valve core and the inner wall of the auxiliary valve body.
Preferably, an upper hollow groove is formed in the central position of the inner part of the upper sealing ring, and two ends of the upper hollow groove extend to the outer part of the upper sealing ring so as to reduce the material cost of the upper sealing ring.
Preferably, a lower hollow groove is arranged at the central position of the inner part of the lower sealing ring, and two ends of the lower hollow groove extend to the outer part of the lower sealing ring so as to reduce the material cost of the lower sealing ring.
Compared with the prior art, the utility model has the beneficial effects that: the vibration-proof pre-opening valve device of the steam turbine regulating valve not only reduces the phenomenon of vibration generated when the threaded main valve rod and the auxiliary valve rod are lifted, but also achieves the aim of positioning and arranging the pre-opening valve, and improves the tightness when the pre-opening valve is used;
(1) The thread main valve rod is connected with the thread cylinder in a threaded manner, the lower end of the auxiliary valve rod is inserted into the groove at the top of the pre-opening valve core, and the top end of the auxiliary valve rod is fixedly connected with the bottom end of the thread main valve rod, so that the thread cylinder can limit the thread main valve rod, the pre-opening valve core can limit the lower end of the auxiliary valve rod, and the phenomenon of vibration generated when the thread main valve rod and the auxiliary valve rod are lifted is reduced;
(2) The positioning seat is arranged on the outer wall of the air outlet, and positioning holes are formed in the corner positions of the top of the positioning seat, so that the positioning holes can be penetrated by external bolts and connected to the positioning platform, and the purpose of positioning and positioning the pre-opening valve is achieved;
(3) The upper sealing ring and the lower sealing ring are respectively arranged at the two ends of the pre-opening valve core, so that the contact positions of the two ends of the pre-opening valve core and the inner wall of the auxiliary valve body can be sealed by the upper sealing ring and the lower sealing ring, the phenomenon that steam circulates through gaps between the two ends of the pre-opening valve core and the inner wall of the auxiliary valve body is reduced, and the tightness of the pre-opening valve in use is improved.
Drawings
FIG. 1 is a schematic cross-sectional elevation view of the present utility model;
FIG. 2 is a schematic three-dimensional structure of the present utility model;
FIG. 3 is an enlarged schematic view of the structure of FIG. 1A according to the present utility model;
fig. 4 is a schematic side view of the present utility model.
In the figure: 1. a main valve body; 2. a thread cylinder; 3. a threaded main valve stem; 4. a connector; 5. an air inlet; 6. an auxiliary valve rod; 7. an auxiliary valve body; 8. a positioning seat; 9. an air outlet; 10. positioning holes; 11. pre-opening the valve core; 12. an upper sealing ring; 13. a lower sealing ring; 14. an upper hollow groove; 15. a lower hollow groove.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-4, an embodiment of the present utility model is provided: the vibration-proof pre-opening valve device of the steam turbine regulating valve comprises a main valve body 1, wherein an auxiliary valve body 7 is fixed at the center position of the bottom end of the main valve body 1, and the top end of the auxiliary valve body 7 is communicated with the bottom end of the main valve body 1;
an air inlet 5 is arranged on the outer wall of one side of the connecting position of the main valve body 1 and the auxiliary valve body 7, and one end of the air inlet 5 extends into the main valve body 1;
an air outlet 9 is formed in one end, far away from the main valve body 1, of the auxiliary valve body 7, a positioning seat 8 is arranged on the outer wall, close to one end of the auxiliary valve body 7, of the air outlet 9, positioning holes 10 are formed in corner positions of the top of the positioning seat 8, and the bottom ends of the positioning holes 10 extend to the outside of the positioning seat 8;
when in use, the external locating pin penetrates through the locating hole 10 and is connected to the positioning platform, so that the purpose of positioning and positioning the pre-opening valve is achieved;
one end inside the auxiliary valve body 7 is movably connected with a pre-opening valve core 11, an upper sealing ring 12 is arranged at the edge position of the top end of the pre-opening valve core 11, and the outer wall of the upper sealing ring 12 is contacted with the inner wall of the auxiliary valve body 7;
when in use, the upper sealing ring 12 is arranged at the edge position of the top end of the pre-opening valve core 11 so as to seal the connecting position of the upper end of the pre-opening valve core 11 and the inner wall of the auxiliary valve body 7;
a lower sealing ring 13 is arranged at the edge position of the bottom end of the pre-opening valve core 11, and the outer wall of the lower sealing ring 13 is contacted with the inner wall of the auxiliary valve body 7;
when in use, the lower sealing ring 13 is arranged at the edge position of the bottom end of the pre-opening valve core 11 so as to seal the connection position of the lower end of the pre-opening valve core 11 and the inner wall of the auxiliary valve body 7;
an upper hollow groove 14 is arranged at the central position inside the upper sealing ring 12, and two ends of the upper hollow groove 14 extend to the outside of the upper sealing ring 12;
when in use, the upper hollow groove 14 is arranged on the inner side of the upper sealing ring 12, so that the material cost of the upper sealing ring 12 is reduced;
a lower hollow groove 15 is arranged in the center position of the inner part of the lower sealing ring 13, and two ends of the lower hollow groove 15 extend to the outer part of the lower sealing ring 13;
when in use, the lower hollow groove 15 is arranged on the inner side of the lower sealing ring 13, so that the material cost of the lower sealing ring 13 is reduced;
the central point department at the top of main valve body 1 is equipped with screw thread section of thick bamboo 2, and the bottom of screw thread section of thick bamboo 2 extends to the inside of main valve body 1, and the inside threaded connection of screw thread section of thick bamboo 2 has screw thread main valve rod 3, and the top of screw thread main valve rod 3 extends to the outside of screw thread section of thick bamboo 2 and is equipped with connector 4, and the bottom of screw thread main valve rod 3 extends to the inside of main valve body 1 and is equipped with auxiliary valve rod 6, and the bottom of auxiliary valve rod 6 extends to the inside of auxiliary valve body 7 and is connected with the top of pre-opening valve core 11.
When the embodiment of the application is used, the external driving part is connected through the connector 4, so that the external driving part can drive the threaded main valve rod 3 to rotate, the threaded main valve rod 3 is positioned in the threaded cylinder 2 to rotate and slide, the threaded main valve rod 3 can drive the pre-opening valve core 11 to lift through the auxiliary valve rod 6, when the pre-opening valve core 11 moves up to the inside of the main valve body 1, the cavities in the main valve body 1 and the auxiliary valve body 7 are in an open-close state, at the moment, steam flows into the inside of the main valve body 1 through the air inlet 5, and is discharged through the air outlet 9 after flowing into the auxiliary valve body 7, so as to control the steam to circulate, then the threaded main valve rod 3 is connected to the threaded cylinder 2 through threads, the lower end of the auxiliary valve rod 6 is inserted into the groove at the top of the pre-opening valve core 11, the top end of the auxiliary valve rod 6 is fixedly connected to the bottom end of the threaded main valve rod 3, the thread cylinder 2 can limit the thread main valve rod 3, the pre-opening valve core 11 can limit the lower end of the auxiliary valve rod 6, so as to reduce the vibration generated when the thread main valve rod 3 and the auxiliary valve rod 6 are lifted, the positioning seat 8 is arranged on the outer wall of the air outlet 9, the positioning holes 10 are arranged at the corner positions at the top of the positioning seat 8, the positioning holes 10 can be penetrated by external bolts and connected to the positioning platform so as to realize the positioning and positioning treatment of the pre-opening valve, finally, the upper sealing ring 12 and the lower sealing ring 13 are respectively arranged at the two ends of the pre-opening valve core 11, so that the upper sealing ring 12 and the lower sealing ring 13 can seal the contact positions of the two ends of the pre-opening valve core 11 and the inner wall of the auxiliary valve body 7, and the circulation phenomenon of steam generated through the gap between the two ends of the pre-opening valve core 11 and the inner wall of the auxiliary valve body 7 is reduced, the tightness of the pre-opening valve can be improved, and the inner sides of the upper sealing ring 12 and the lower sealing ring 13 are respectively provided with the upper hollow groove 14 and the lower hollow groove 15, so that the material cost of the upper sealing ring 12 and the lower sealing ring 13 is reduced on the premise that the sealing performance of the upper sealing ring 12 and the lower sealing ring 13 on the two ends of the pre-opening valve core 11 is not influenced, and the use of the pre-opening valve is completed.
Claims (6)
1. The utility model provides a vibration-proof pre-starting valve device of steam turbine governing valve, its characterized in that, including main valve body (1), the central point department of main valve body (1) bottom is fixed with auxiliary valve body (7), the top of auxiliary valve body (7) is linked together with the bottom of main valve body (1), be equipped with air inlet (5) on one side outer wall of main valve body (1) and auxiliary valve body (7) hookup location department, the inside that one end of air inlet (5) extends to main valve body (1), the one end that auxiliary valve body (7) kept away from main valve body (1) is equipped with gas outlet (9), be equipped with positioning seat (8) on the outer wall that gas outlet (9) is close to auxiliary valve body (7) one end, the inside one end swing joint of auxiliary valve body (7) has pre-starting valve core (11), the central point department at main valve body (1) top is equipped with screw thread section of thick bamboo (2), the inside screw thread section of thick bamboo (2) the bottom of screw thread section of thick bamboo (2) extends to the inside of main valve body (1), screw thread section of thick bamboo (2) internal thread is connected with screw thread main valve rod (3), the top of screw thread main valve rod (3) is equipped with the inside the screw thread (4) of main valve rod (4) and extends to the outside of main valve rod (1), the bottom end of the auxiliary valve rod (6) extends to the inside of the auxiliary valve body (7) and is connected with the top of the pre-opening valve core (11).
2. The vibration-proof pre-opening valve apparatus for a steam turbine regulating valve according to claim 1, wherein: and positioning holes (10) are formed in the corner positions of the top of the positioning seat (8), and the bottom ends of the positioning holes (10) extend to the outside of the positioning seat (8).
3. The vibration-proof pre-opening valve apparatus for a steam turbine regulating valve according to claim 1, wherein: an upper sealing ring (12) is arranged at the edge position of the top end of the pre-opening valve core (11), and the outer wall of the upper sealing ring (12) is contacted with the inner wall of the auxiliary valve body (7).
4. The vibration-proof pre-opening valve apparatus for a steam turbine regulating valve according to claim 1, wherein: the edge of the bottom end of the pre-opening valve core (11) is provided with a lower sealing ring (13), and the outer wall of the lower sealing ring (13) is contacted with the inner wall of the auxiliary valve body (7).
5. A vibration-proof pre-opening valve apparatus for a steam turbine regulating valve according to claim 3, wherein: an upper hollow groove (14) is formed in the central position inside the upper sealing ring (12), and two ends of the upper hollow groove (14) extend to the outside of the upper sealing ring (12).
6. The vibration-proof pre-opening valve apparatus for a steam turbine regulating valve according to claim 4, wherein: the center position inside the lower sealing ring (13) is provided with a lower hollow groove (15), and two ends of the lower hollow groove (15) extend to the outside of the lower sealing ring (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320097740.6U CN218913757U (en) | 2023-02-01 | 2023-02-01 | Vibration-proof pre-opening valve device of steam turbine regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320097740.6U CN218913757U (en) | 2023-02-01 | 2023-02-01 | Vibration-proof pre-opening valve device of steam turbine regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218913757U true CN218913757U (en) | 2023-04-25 |
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ID=86047733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320097740.6U Active CN218913757U (en) | 2023-02-01 | 2023-02-01 | Vibration-proof pre-opening valve device of steam turbine regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218913757U (en) |
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2023
- 2023-02-01 CN CN202320097740.6U patent/CN218913757U/en active Active
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