CN217001985U - Shaft seal structure capable of reducing shaft vibration - Google Patents
Shaft seal structure capable of reducing shaft vibration Download PDFInfo
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- CN217001985U CN217001985U CN202220545580.2U CN202220545580U CN217001985U CN 217001985 U CN217001985 U CN 217001985U CN 202220545580 U CN202220545580 U CN 202220545580U CN 217001985 U CN217001985 U CN 217001985U
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- shaft seal
- stirring rod
- connecting pipe
- shaft
- installation shell
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Abstract
The utility model discloses a shaft seal structure capable of reducing shaft vibration, which comprises a shaft seal pipeline, a cooler and a water pump, wherein a first stirring rod, a second stirring rod and a third stirring rod are sequentially and rotatably arranged at the top of the shaft seal pipeline, and a first connecting pipe at the water outlet end of the water pump is connected with the water inlet end of the cooler; through the setting of cooler, through the cooler, a water pump, first connecting pipe and the cooperation of second connecting pipe, can make the shaft seal pipeline cooling of the cooling hydroenergy enough persistence in first installation shell and the second installation shell, through the motor, the belt pulley, the belt, first puddler, second puddler and third puddler cooperation, thereby can be to the cooling water stirring in first installation shell and the second installation shell, can make cooling hydroenergy enough even and quick to the vapour cooling in bearing seal pipeline and the bearing seal pipeline, and then prevent because of the bearing seal temperature is unusual, lead to the problem that the shaft of the turbine shakes the increase.
Description
Technical Field
The utility model relates to the technical field of steam turbine shaft seals, in particular to a shaft seal structure capable of reducing shaft vibration.
Background
Compared with a full-speed steam turbine unit, the diameter of a rotor of a large-scale unit, particularly a million-nuclear-power half-speed nuclear power unit, is almost multiplied, and the temperature nonuniformity of the rotor is increased, so that the shaft vibration of the rotor is increased, and the rotor and a bearing are easily damaged when the large-scale unit works for a long time.
In prior art, for reducing the turbine shaft and shake, can utilize the scavenger fan to cool down the bearing seal pipeline usually to prevent to shake the increase problem because of the bearing seal temperature is unstable and cause the unit axle, this is even can shake the axle that reduces the turbine, but efficiency when cooling the bearing seal is lower, can not be quick the completion to the cooling of bearing seal, thereby can influence the normal work of unit, therefore we need propose one kind and have the bearing seal structure that alleviates the axle and shake.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to a shaft seal structure capable of reducing shaft vibration, which can rapidly cool a shaft seal when cooling the shaft seal, so as to solve the problems mentioned in the background art.
In order to achieve the purpose, the utility model provides the following technical scheme: a shaft seal structure capable of reducing shaft vibration comprises a shaft seal pipeline, a cooler and a water pump, wherein a first installation shell and a second installation shell are arranged on the surface of the shaft seal pipeline, the first installation shell and the second installation shell are installed on the shaft seal pipeline in a sealing mode, a motor is fixedly installed at the top of the shaft seal pipeline, a first stirring rod, a second stirring rod and a third stirring rod are sequentially installed at the top of the shaft seal pipeline in a rotating mode, belt pulleys are fixedly connected to the tops of the first stirring rod, the second stirring rod and the third stirring rod, the belt pulleys at the tops of the first stirring rod and the third stirring rod are in transmission with the belt pulley at the top of the second stirring rod through a belt, and the motor is fixedly installed on the belt pulley at the top of the second stirring rod;
the water pump is characterized in that the water inlet end and the water outlet end of the water pump are both communicated with a first connecting pipe, the first connecting pipe at the water inlet end of the water pump is communicated with the bottom of the first mounting shell, the first connecting pipe at the water outlet end of the water pump is connected with the water inlet end of the cooler, the water outlet end of the cooler is communicated with a second connecting pipe, and the second connecting pipe is communicated with the top of the second mounting shell.
Preferably, the top of the shaft seal pipeline is fixedly provided with a fixed frame, the motor is fixedly arranged on the fixed frame, and the second mounting shell is provided with an industrial digital thermometer.
Preferably, the two ends of the first mounting shell are fixedly connected with first fixing blocks, the two ends of the second mounting shell are fixedly connected with second fixing blocks corresponding to the first fixing blocks, and the first mounting shell and the second mounting shell are fixedly mounted on the shaft seal pipeline through bolts matched with the first fixing blocks and the second fixing blocks.
Preferably, the top of first installation shell is provided with sealed the pad, the second installation shell compresses tightly in sealed pad, the fixed surface of first installation shell is connected with the third fixed block, the fixed surface of second installation shell is connected with the fourth fixed block, the second installation shell passes through fixed screw cooperation fourth fixed block, third fixed block in first installation shell fixed mounting.
Preferably, a drain pipe is communicated with the first connecting pipe, a second valve is arranged on the drain pipe, and a first valve is arranged on the first connecting pipe.
Preferably, a third valve is arranged on the second connecting pipe, a water inlet pipe is communicated with the second connecting pipe, and a fourth valve is arranged on the water inlet pipe.
Compared with the prior art, the utility model has the beneficial effects that:
through the cooler of setting up of cooler, a water pump, first connecting pipe cooperates with the second connecting pipe, thereby can make cooling water in first installation shell and the second installation shell extract the back and cool down, and then can make the sufficient continuation of cooling hydroenergy in first installation shell and the second installation shell counter shaft seal pipeline cool down, through the motor, a belt pulley, a belt, first puddler, the second puddler cooperates with the third puddler, thereby can stir the cooling water in first installation shell and the second installation shell, make the cooling water in first installation shell and the second installation shell mix with the cooling water after the cooler cooling, can make cooling hydroenergy cool down the steam in pipeline and the bearing seal pipeline evenly and fast enough, and then prevent because of the bearing seal temperature is unusual, lead to the problem that the turbine shaft shakes and increase.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention;
fig. 3 is a schematic structural diagram of the first mounting case of the present invention.
In the figure: 1. a first mounting case; 2. a second mounting case; 3. a first fixed block; 4. a second fixed block; 5. shaft sealing the pipeline; 6. a cooler; 7. a water pump; 8. a first connecting pipe; 9. a first valve; 10. a drain pipe; 11. a second valve; 12. a second connecting pipe; 13. a third valve; 14. a water inlet pipe; 15. a fourth valve; 16. a third fixed block; 17. a fourth fixed block; 18. a gasket; 19. an industrial digital thermometer; 20. a first stirring rod; 21. a second stirring rod; 22. a third stirring rod; 23. a belt pulley; 24. a fixed mount; 25. an electric motor.
Detailed Description
The same reference numbers in different drawings identify the same or similar elements; it should be further understood that terms such as "first," "second," "third," "upper," "lower," "front," "back," "inner," "outer," "end," "portion," "section," "width," "thickness," "zone," and the like, as used herein, are merely used for convenience in referring to the figures and to aid in describing the utility model, and are not intended to limit the utility model.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: a shaft seal structure capable of reducing shaft vibration comprises a shaft seal pipeline 5, a cooler 6 and a water pump 7, wherein a first installation shell 1 and a second installation shell 2 are arranged on the surface of the shaft seal pipeline 5, the first installation shell 1 and the second installation shell 2 are installed on the shaft seal pipeline 5 in a sealing mode, a motor 25 is fixedly installed at the top of the shaft seal pipeline 5, a first stirring rod 20, a second stirring rod 21 and a third stirring rod 22 are sequentially installed at the top of the shaft seal pipeline 5 in a rotating mode, belt pulleys 23 are fixedly connected to the tops of the first stirring rod 20, the second stirring rod 21 and the third stirring rod 22, the belt pulleys 23 at the tops of the first stirring rod 20 and the third stirring rod 22 are in transmission with the belt pulleys 23 at the top of the second stirring rod 21 through belts, and the motor 25 is fixedly installed on the belt pulleys 23 at the top of the second stirring rod 21;
through the arrangement of the motor 25, the motor 25 and the belt are matched with the belt pulley 23, so that the cooling water in the first mounting shell 1 and the cooling water in the second mounting shell 2 can be stirred and mixed through the first stirring rod 20, the second stirring rod 21 and the third stirring rod 22;
a water inlet end and a water outlet end of the water pump 7 are both communicated with a first connecting pipe 8, the first connecting pipe 8 at the water inlet end of the water pump 7 is communicated with the bottom of the first mounting shell 1, the first connecting pipe 8 at the water outlet end of the water pump 7 is connected with the water inlet end of the cooler 6, the water outlet end of the cooler 6 is communicated with a second connecting pipe 12, and the second connecting pipe 12 is communicated with the top of the second mounting shell 2;
through the arrangement of the water pump 7, the water pump 7 is matched with the first connecting pipe 8, so that cooling water in the first mounting shell 1 and the second mounting shell 2 can be pumped into the cooler 6 for cooling, and the cooled cooling water can be conveyed into the first mounting shell 1 and the second mounting shell 2 through the second connecting pipe 12, so that the cooling water in the first mounting shell 1 and the second mounting shell 2 is prevented from being too high in temperature, and the steam in the shaft seal pipeline 5 and the shaft seal pipeline 5 is prevented from being cooled;
a fixing frame 24 is fixedly arranged at the top of a shaft seal pipeline 5, a motor 25 is fixedly arranged on the fixing frame 24, an industrial digital thermometer 19 is arranged on a second mounting shell 2, two ends of a first mounting shell 1 are fixedly connected with a first fixing block 3, two ends of the second mounting shell 2 are fixedly connected with a second fixing block 4 corresponding to the first fixing block 3, the first mounting shell 1 and the second mounting shell 2 are matched with the first fixing block 3 and the second fixing block 4 through bolts and are fixedly arranged on the shaft seal pipeline 5, a sealing gasket 18 is arranged at the top of the first mounting shell 1, the second mounting shell 2 is tightly pressed by the sealing gasket 18, a third fixing block 16 is fixedly connected with the surface of the first mounting shell 1, a fourth fixing block 17 is fixedly connected with the surface of the second mounting shell 2, and the second mounting shell 2 is matched with the fourth fixing block 17 through fixing screws, the third fixing block 16 is fixedly mounted on the first mounting case 1;
through the arrangement of the industrial digital thermometer 19, the temperature of cooling water in the first mounting shell 1 and the second mounting shell 2 can be observed, and the first mounting shell 1 and the second mounting shell 2 can be fixedly mounted on the shaft seal pipeline 5 through the matching of the first fixing block 3, the second fixing block 4, the bolt, the third fixing block 16 and the fourth fixing block 17 and the fixing screws;
a drain pipe 10 is communicated with the first connecting pipe 8, a second valve 11 is arranged on the drain pipe 10, a first valve 9 is arranged on the first connecting pipe 8, a third valve 13 is arranged on the second connecting pipe 12, a water inlet pipe 14 is communicated with the second connecting pipe 12, and a fourth valve 15 is arranged on the water inlet pipe 14;
through the arrangement of the drain pipe 10, when cooling water in the first installation shell 1 and the second installation shell 2 needs to be replaced, after the first valve 9 is closed, the second valve 11 is opened, so that the cooling water in the first installation shell 1 and the second installation shell 2 can be discharged, the water inlet pipe 14 is connected with an external water pipe, and when the cooling water needs to be injected into the first installation shell 1 and the second installation shell 2, the fourth valve 15 is opened, so that the external cooling water can enter the first installation shell 1 and the second installation shell 2 through the water inlet pipe 14;
in the specific use process, firstly, the steam in the shaft seal pipeline 5 and the shaft seal pipeline 5 can be cooled through the cooling water in the first mounting shell 1 and the second mounting shell 2, the water pump 7 works while the shaft seal pipeline 5 is cooled through the cooling water in the first mounting shell 1 and the second mounting shell 2, the water pump 7 extracts the cooling water in the first mounting shell 1 and the second mounting shell 2 through the first connecting pipe 8 at the water inlet end, the extracted cooling water is conveyed into the cooler 6 through the first connecting pipe 8 at the water outlet end of the water pump 7, the cooling water can be cooled through the cooler 6, the cooling water cooled through the cooler 6 is conveyed into the first mounting shell 1 and the second mounting shell 2 through the second connecting pipe 12 at the water outlet end of the cooler 6, and therefore the cooling water can continuously cool the shaft seal pipeline 5;
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 utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a bearing seal structure with alleviate axle and shake, includes bearing seal pipeline (5), cooler (6) and water pump (7), its characterized in that: the surface of the shaft seal pipeline (5) is provided with a first mounting shell (1) and a second mounting shell (2), the first mounting shell (1) and the second mounting shell (2) are hermetically mounted on a shaft seal pipeline (5), a motor (25) is fixedly arranged at the top of the shaft seal pipeline (5), a first stirring rod (20), a second stirring rod (21) and a third stirring rod (22) are sequentially and rotatably arranged at the top of the shaft seal pipeline (5), the tops of the first stirring rod (20), the second stirring rod (21) and the third stirring rod (22) are fixedly connected with belt pulleys (23), the first stirring rod (20) and the belt pulley (23) at the top of the third stirring rod (22) are in transmission with the belt pulley (23) at the top of the second stirring rod (21) through a belt, the motor (25) is fixedly arranged on a belt pulley (23) at the top of the second stirring rod (21);
the water pump is characterized in that the water inlet end and the water outlet end of the water pump (7) are communicated with a first connecting pipe (8), the first connecting pipe (8) at the water inlet end of the water pump (7) is communicated with the bottom of the first installation shell (1), the first connecting pipe (8) at the water outlet end of the water pump (7) is connected with the water inlet end of the cooler (6), the water outlet end of the cooler (6) is communicated with a second connecting pipe (12), and the second connecting pipe (12) is communicated with the top of the second installation shell (2).
2. The shaft seal structure with shaft vibration reduction according to claim 1, wherein: the top of the shaft seal pipeline (5) is fixedly provided with a fixed frame (24), the motor (25) is fixedly arranged on the fixed frame (24), and the second mounting shell (2) is provided with an industrial digital thermometer (19).
3. The shaft seal structure with shaft vibration reduction according to claim 1, wherein: the shaft seal mounting structure is characterized in that first fixing blocks (3) are fixedly connected to two ends of the first mounting shell (1), second fixing blocks (4) corresponding to the first fixing blocks (3) are fixedly connected to two ends of the second mounting shell (2), and the first mounting shell (1) and the second mounting shell (2) are fixedly mounted on a shaft seal pipeline (5) through the first fixing blocks (3) and the second fixing blocks (4) matched through bolts.
4. The shaft seal structure with shaft vibration reduction according to claim 3, wherein: the top of first installation shell (1) is provided with sealed pad (18), second installation shell (2) compress tightly in sealed pad (18), the fixed surface of first installation shell (1) is connected with third fixed block (16), the fixed surface of second installation shell (2) is connected with fourth fixed block (17), second installation shell (2) are through fixed screw cooperation fourth fixed block (17), third fixed block (16) and first installation shell (1) fixed mounting.
5. The shaft seal structure with shaft vibration reduction according to claim 1, wherein: the water discharging pipe (10) is communicated with the first connecting pipe (8), a second valve (11) is arranged on the water discharging pipe (10), and a first valve (9) is arranged on the first connecting pipe (8).
6. The shaft seal structure with shaft vibration reduction according to claim 5, wherein: the water-saving type water heater is characterized in that a third valve (13) is arranged on the second connecting pipe (12), a water inlet pipe (14) is communicated with the second connecting pipe (12), and a fourth valve (15) is arranged on the water inlet pipe (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220545580.2U CN217001985U (en) | 2022-03-14 | 2022-03-14 | Shaft seal structure capable of reducing shaft vibration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220545580.2U CN217001985U (en) | 2022-03-14 | 2022-03-14 | Shaft seal structure capable of reducing shaft vibration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217001985U true CN217001985U (en) | 2022-07-19 |
Family
ID=82368434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220545580.2U Active CN217001985U (en) | 2022-03-14 | 2022-03-14 | Shaft seal structure capable of reducing shaft vibration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217001985U (en) |
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2022
- 2022-03-14 CN CN202220545580.2U patent/CN217001985U/en active Active
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